mesa git update 7 Feb 2011

5 files changed, 6285 insertions, 6283 deletions

diff --git a/mesalib/src/mesa/main/enable.c b/mesalib/src/mesa/main/enable.c
index 08e396bc1..d34c6ff90 100644
--- a/mesalib/src/mesa/main/enable.c
+++ b/mesalib/src/mesa/main/enable.c
@@ -1,1503 +1,1504 @@
-/**

- * \file enable.c

- * Enable/disable/query GL capabilities.

- */

-

-/*

- * Mesa 3-D graphics library

- * Version:  7.0.3

- *

- * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.

- *

- * Permission is hereby granted, free of charge, to any person obtaining a

- * copy of this software and associated documentation files (the "Software"),

- * to deal in the Software without restriction, including without limitation

- * the rights to use, copy, modify, merge, publish, distribute, sublicense,

- * and/or sell copies of the Software, and to permit persons to whom the

- * Software is furnished to do so, subject to the following conditions:

- *

- * The above copyright notice and this permission notice shall be included

- * in all copies or substantial portions of the Software.

- *

- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

- */

-

-

-#include "glheader.h"

-#include "context.h"

-#include "enable.h"

-#include "light.h"

-#include "simple_list.h"

-#include "mfeatures.h"

-#include "mtypes.h"

-#include "enums.h"

-#include "api_arrayelt.h"

-#include "texstate.h"

-

-

-

-#define CHECK_EXTENSION(EXTNAME, CAP)					\

-   if (!ctx->Extensions.EXTNAME) {					\

-      goto invalid_enum_error;						\

-   }

-

-

-/**

- * Helper to enable/disable client-side state.

- */

-static void

-client_state(struct gl_context *ctx, GLenum cap, GLboolean state)

-{

-   struct gl_array_object *arrayObj = ctx->Array.ArrayObj;

-   GLuint flag;

-   GLboolean *var;

-

-   switch (cap) {

-      case GL_VERTEX_ARRAY:

-         var = &arrayObj->Vertex.Enabled;

-         flag = _NEW_ARRAY_VERTEX;

-         break;

-      case GL_NORMAL_ARRAY:

-         var = &arrayObj->Normal.Enabled;

-         flag = _NEW_ARRAY_NORMAL;

-         break;

-      case GL_COLOR_ARRAY:

-         var = &arrayObj->Color.Enabled;

-         flag = _NEW_ARRAY_COLOR0;

-         break;

-      case GL_INDEX_ARRAY:

-         var = &arrayObj->Index.Enabled;

-         flag = _NEW_ARRAY_INDEX;

-         break;

-      case GL_TEXTURE_COORD_ARRAY:

-         var = &arrayObj->TexCoord[ctx->Array.ActiveTexture].Enabled;

-         flag = _NEW_ARRAY_TEXCOORD(ctx->Array.ActiveTexture);

-         break;

-      case GL_EDGE_FLAG_ARRAY:

-         var = &arrayObj->EdgeFlag.Enabled;

-         flag = _NEW_ARRAY_EDGEFLAG;

-         break;

-      case GL_FOG_COORDINATE_ARRAY_EXT:

-         var = &arrayObj->FogCoord.Enabled;

-         flag = _NEW_ARRAY_FOGCOORD;

-         break;

-      case GL_SECONDARY_COLOR_ARRAY_EXT:

-         var = &arrayObj->SecondaryColor.Enabled;

-         flag = _NEW_ARRAY_COLOR1;

-         break;

-

-#if FEATURE_point_size_array

-      case GL_POINT_SIZE_ARRAY_OES:

-         var = &arrayObj->PointSize.Enabled;

-         flag = _NEW_ARRAY_POINT_SIZE;

-         break;

-#endif

-

-#if FEATURE_NV_vertex_program

-      case GL_VERTEX_ATTRIB_ARRAY0_NV:

-      case GL_VERTEX_ATTRIB_ARRAY1_NV:

-      case GL_VERTEX_ATTRIB_ARRAY2_NV:

-      case GL_VERTEX_ATTRIB_ARRAY3_NV:

-      case GL_VERTEX_ATTRIB_ARRAY4_NV:

-      case GL_VERTEX_ATTRIB_ARRAY5_NV:

-      case GL_VERTEX_ATTRIB_ARRAY6_NV:

-      case GL_VERTEX_ATTRIB_ARRAY7_NV:

-      case GL_VERTEX_ATTRIB_ARRAY8_NV:

-      case GL_VERTEX_ATTRIB_ARRAY9_NV:

-      case GL_VERTEX_ATTRIB_ARRAY10_NV:

-      case GL_VERTEX_ATTRIB_ARRAY11_NV:

-      case GL_VERTEX_ATTRIB_ARRAY12_NV:

-      case GL_VERTEX_ATTRIB_ARRAY13_NV:

-      case GL_VERTEX_ATTRIB_ARRAY14_NV:

-      case GL_VERTEX_ATTRIB_ARRAY15_NV:

-         CHECK_EXTENSION(NV_vertex_program, cap);

-         {

-            GLint n = (GLint) cap - GL_VERTEX_ATTRIB_ARRAY0_NV;

-            ASSERT(n < Elements(ctx->Array.ArrayObj->VertexAttrib));

-            var = &arrayObj->VertexAttrib[n].Enabled;

-            flag = _NEW_ARRAY_ATTRIB(n);

-         }

-         break;

-#endif /* FEATURE_NV_vertex_program */

-

-      /* GL_NV_primitive_restart */

-      case GL_PRIMITIVE_RESTART_NV:

-	 if (!ctx->Extensions.NV_primitive_restart) {

-            goto invalid_enum_error;

-         }

-         var = &ctx->Array.PrimitiveRestart;

-         flag = 0;

-         break;

-

-      default:

-         goto invalid_enum_error;

-   }

-

-   if (*var == state)

-      return;

-

-   FLUSH_VERTICES(ctx, _NEW_ARRAY);

-   ctx->Array.NewState |= flag;

-

-   _ae_invalidate_state(ctx, _NEW_ARRAY);

-

-   *var = state;

-

-   if (state)

-      ctx->Array.ArrayObj->_Enabled |= flag;

-   else

-      ctx->Array.ArrayObj->_Enabled &= ~flag;

-

-   if (ctx->Driver.Enable) {

-      ctx->Driver.Enable( ctx, cap, state );

-   }

-

-   return;

-

-invalid_enum_error:

-   _mesa_error(ctx, GL_INVALID_ENUM, "gl%sClientState(0x%x)",

-               state ? "Enable" : "Disable", cap);

-}

-

-

-/**

- * Enable GL capability.

- * \param cap  state to enable/disable.

- *

- * Get's the current context, assures that we're outside glBegin()/glEnd() and

- * calls client_state().

- */

-void GLAPIENTRY

-_mesa_EnableClientState( GLenum cap )

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-   client_state( ctx, cap, GL_TRUE );

-}

-

-

-/**

- * Disable GL capability.

- * \param cap  state to enable/disable.

- *

- * Get's the current context, assures that we're outside glBegin()/glEnd() and

- * calls client_state().

- */

-void GLAPIENTRY

-_mesa_DisableClientState( GLenum cap )

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-   client_state( ctx, cap, GL_FALSE );

-}

-

-

-#undef CHECK_EXTENSION

-#define CHECK_EXTENSION(EXTNAME, CAP)					\

-   if (!ctx->Extensions.EXTNAME) {					\

-      goto invalid_enum_error;						\

-   }

-

-#define CHECK_EXTENSION2(EXT1, EXT2, CAP)				\

-   if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) {		\

-      goto invalid_enum_error;						\

-   }

-

-

-

-/**

- * Return pointer to current texture unit for setting/getting coordinate

- * state.

- * Note that we'll set GL_INVALID_OPERATION if the active texture unit is

- * higher than the number of supported coordinate units.  And we'll return NULL.

- */

-static struct gl_texture_unit *

-get_texcoord_unit(struct gl_context *ctx)

-{

-   if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {

-      _mesa_error(ctx, GL_INVALID_OPERATION, "glEnable/Disable(texcoord unit)");

-      return NULL;

-   }

-   else {

-      return &ctx->Texture.Unit[ctx->Texture.CurrentUnit];

-   }

-}

-

-

-/**

- * Helper function to enable or disable a texture target.

- * \param bit  one of the TEXTURE_x_BIT values

- * \return GL_TRUE if state is changing or GL_FALSE if no change

- */

-static GLboolean

-enable_texture(struct gl_context *ctx, GLboolean state, GLbitfield texBit)

-{

-   struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);

-   const GLbitfield newenabled = state

-      ? (texUnit->Enabled | texBit) : (texUnit->Enabled & ~texBit);

-

-   if (texUnit->Enabled == newenabled)

-       return GL_FALSE;

-

-   FLUSH_VERTICES(ctx, _NEW_TEXTURE);

-   texUnit->Enabled = newenabled;

-   return GL_TRUE;

-}

-

-

-/**

- * Helper function to enable or disable state.

- *

- * \param ctx GL context.

- * \param cap  the state to enable/disable

- * \param state whether to enable or disable the specified capability.

- *

- * Updates the current context and flushes the vertices as needed. For

- * capabilities associated with extensions it verifies that those extensions

- * are effectivly present before updating. Notifies the driver via

- * dd_function_table::Enable.

- */

-void

-_mesa_set_enable(struct gl_context *ctx, GLenum cap, GLboolean state)

-{

-   if (MESA_VERBOSE & VERBOSE_API)

-      _mesa_debug(ctx, "%s %s (newstate is %x)\n",

-                  state ? "glEnable" : "glDisable",

-                  _mesa_lookup_enum_by_nr(cap),

-                  ctx->NewState);

-

-   switch (cap) {

-      case GL_ALPHA_TEST:

-         if (ctx->Color.AlphaEnabled == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_COLOR);

-         ctx->Color.AlphaEnabled = state;

-         break;

-      case GL_AUTO_NORMAL:

-         if (ctx->Eval.AutoNormal == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_EVAL);

-         ctx->Eval.AutoNormal = state;

-         break;

-      case GL_BLEND:

-         {

-            GLbitfield newEnabled = state * ((1 << ctx->Const.MaxDrawBuffers) - 1);

-            if (newEnabled != ctx->Color.BlendEnabled) {

-               FLUSH_VERTICES(ctx, _NEW_COLOR);

-               ctx->Color.BlendEnabled = newEnabled;

-            }

-         }

-         break;

-#if FEATURE_userclip

-      case GL_CLIP_PLANE0:

-      case GL_CLIP_PLANE1:

-      case GL_CLIP_PLANE2:

-      case GL_CLIP_PLANE3:

-      case GL_CLIP_PLANE4:

-      case GL_CLIP_PLANE5:

-         {

-            const GLuint p = cap - GL_CLIP_PLANE0;

-

-            if ((ctx->Transform.ClipPlanesEnabled & (1 << p)) == ((GLuint) state << p))

-               return;

-

-            FLUSH_VERTICES(ctx, _NEW_TRANSFORM);

-

-            if (state) {

-               ctx->Transform.ClipPlanesEnabled |= (1 << p);

-

-               if (_math_matrix_is_dirty(ctx->ProjectionMatrixStack.Top))

-                  _math_matrix_analyse( ctx->ProjectionMatrixStack.Top );

-

-               /* This derived state also calculated in clip.c and

-                * from _mesa_update_state() on changes to EyeUserPlane

-                * and ctx->ProjectionMatrix respectively.

-                */

-               _mesa_transform_vector( ctx->Transform._ClipUserPlane[p],

-                                    ctx->Transform.EyeUserPlane[p],

-                                    ctx->ProjectionMatrixStack.Top->inv );

-            }

-            else {

-               ctx->Transform.ClipPlanesEnabled &= ~(1 << p);

-            }               

-         }

-         break;

-#endif

-      case GL_COLOR_MATERIAL:

-         if (ctx->Light.ColorMaterialEnabled == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_LIGHT);

-         FLUSH_CURRENT(ctx, 0);

-         ctx->Light.ColorMaterialEnabled = state;

-         if (state) {

-            _mesa_update_color_material( ctx,

-                                  ctx->Current.Attrib[VERT_ATTRIB_COLOR0] );

-         }

-         break;

-      case GL_CULL_FACE:

-         if (ctx->Polygon.CullFlag == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_POLYGON);

-         ctx->Polygon.CullFlag = state;

-         break;

-      case GL_DEPTH_TEST:

-         if (ctx->Depth.Test == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_DEPTH);

-         ctx->Depth.Test = state;

-         break;

-      case GL_DITHER:

-         if (ctx->NoDither) {

-            state = GL_FALSE; /* MESA_NO_DITHER env var */

-         }

-         if (ctx->Color.DitherFlag == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_COLOR);

-         ctx->Color.DitherFlag = state;

-         break;

-      case GL_FOG:

-         if (ctx->Fog.Enabled == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_FOG);

-         ctx->Fog.Enabled = state;

-         break;

-      case GL_LIGHT0:

-      case GL_LIGHT1:

-      case GL_LIGHT2:

-      case GL_LIGHT3:

-      case GL_LIGHT4:

-      case GL_LIGHT5:

-      case GL_LIGHT6:

-      case GL_LIGHT7:

-         if (ctx->Light.Light[cap-GL_LIGHT0].Enabled == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_LIGHT);

-         ctx->Light.Light[cap-GL_LIGHT0].Enabled = state;

-         if (state) {

-            insert_at_tail(&ctx->Light.EnabledList,

-                           &ctx->Light.Light[cap-GL_LIGHT0]);

-         }

-         else {

-            remove_from_list(&ctx->Light.Light[cap-GL_LIGHT0]);

-         }

-         break;

-      case GL_LIGHTING:

-         if (ctx->Light.Enabled == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_LIGHT);

-         ctx->Light.Enabled = state;

-         if (ctx->Light.Enabled && ctx->Light.Model.TwoSide)

-            ctx->_TriangleCaps |= DD_TRI_LIGHT_TWOSIDE;

-         else

-            ctx->_TriangleCaps &= ~DD_TRI_LIGHT_TWOSIDE;

-         break;

-      case GL_LINE_SMOOTH:

-         if (ctx->Line.SmoothFlag == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_LINE);

-         ctx->Line.SmoothFlag = state;

-         ctx->_TriangleCaps ^= DD_LINE_SMOOTH;

-         break;

-      case GL_LINE_STIPPLE:

-         if (ctx->Line.StippleFlag == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_LINE);

-         ctx->Line.StippleFlag = state;

-         ctx->_TriangleCaps ^= DD_LINE_STIPPLE;

-         break;

-      case GL_INDEX_LOGIC_OP:

-         if (ctx->Color.IndexLogicOpEnabled == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_COLOR);

-         ctx->Color.IndexLogicOpEnabled = state;

-         break;

-      case GL_COLOR_LOGIC_OP:

-         if (ctx->Color.ColorLogicOpEnabled == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_COLOR);

-         ctx->Color.ColorLogicOpEnabled = state;

-         break;

-      case GL_MAP1_COLOR_4:

-         if (ctx->Eval.Map1Color4 == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_EVAL);

-         ctx->Eval.Map1Color4 = state;

-         break;

-      case GL_MAP1_INDEX:

-         if (ctx->Eval.Map1Index == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_EVAL);

-         ctx->Eval.Map1Index = state;

-         break;

-      case GL_MAP1_NORMAL:

-         if (ctx->Eval.Map1Normal == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_EVAL);

-         ctx->Eval.Map1Normal = state;

-         break;

-      case GL_MAP1_TEXTURE_COORD_1:

-         if (ctx->Eval.Map1TextureCoord1 == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_EVAL);

-         ctx->Eval.Map1TextureCoord1 = state;

-         break;

-      case GL_MAP1_TEXTURE_COORD_2:

-         if (ctx->Eval.Map1TextureCoord2 == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_EVAL);

-         ctx->Eval.Map1TextureCoord2 = state;

-         break;

-      case GL_MAP1_TEXTURE_COORD_3:

-         if (ctx->Eval.Map1TextureCoord3 == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_EVAL);

-         ctx->Eval.Map1TextureCoord3 = state;

-         break;

-      case GL_MAP1_TEXTURE_COORD_4:

-         if (ctx->Eval.Map1TextureCoord4 == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_EVAL);

-         ctx->Eval.Map1TextureCoord4 = state;

-         break;

-      case GL_MAP1_VERTEX_3:

-         if (ctx->Eval.Map1Vertex3 == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_EVAL);

-         ctx->Eval.Map1Vertex3 = state;

-         break;

-      case GL_MAP1_VERTEX_4:

-         if (ctx->Eval.Map1Vertex4 == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_EVAL);

-         ctx->Eval.Map1Vertex4 = state;

-         break;

-      case GL_MAP2_COLOR_4:

-         if (ctx->Eval.Map2Color4 == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_EVAL);

-         ctx->Eval.Map2Color4 = state;

-         break;

-      case GL_MAP2_INDEX:

-         if (ctx->Eval.Map2Index == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_EVAL);

-         ctx->Eval.Map2Index = state;

-         break;

-      case GL_MAP2_NORMAL:

-         if (ctx->Eval.Map2Normal == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_EVAL);

-         ctx->Eval.Map2Normal = state;

-         break;

-      case GL_MAP2_TEXTURE_COORD_1:

-         if (ctx->Eval.Map2TextureCoord1 == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_EVAL);

-         ctx->Eval.Map2TextureCoord1 = state;

-         break;

-      case GL_MAP2_TEXTURE_COORD_2:

-         if (ctx->Eval.Map2TextureCoord2 == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_EVAL);

-         ctx->Eval.Map2TextureCoord2 = state;

-         break;

-      case GL_MAP2_TEXTURE_COORD_3:

-         if (ctx->Eval.Map2TextureCoord3 == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_EVAL);

-         ctx->Eval.Map2TextureCoord3 = state;

-         break;

-      case GL_MAP2_TEXTURE_COORD_4:

-         if (ctx->Eval.Map2TextureCoord4 == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_EVAL);

-         ctx->Eval.Map2TextureCoord4 = state;

-         break;

-      case GL_MAP2_VERTEX_3:

-         if (ctx->Eval.Map2Vertex3 == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_EVAL);

-         ctx->Eval.Map2Vertex3 = state;

-         break;

-      case GL_MAP2_VERTEX_4:

-         if (ctx->Eval.Map2Vertex4 == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_EVAL);

-         ctx->Eval.Map2Vertex4 = state;

-         break;

-      case GL_NORMALIZE:

-         if (ctx->Transform.Normalize == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_TRANSFORM);

-         ctx->Transform.Normalize = state;

-         break;

-      case GL_POINT_SMOOTH:

-         if (ctx->Point.SmoothFlag == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_POINT);

-         ctx->Point.SmoothFlag = state;

-         ctx->_TriangleCaps ^= DD_POINT_SMOOTH;

-         break;

-      case GL_POLYGON_SMOOTH:

-         if (ctx->Polygon.SmoothFlag == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_POLYGON);

-         ctx->Polygon.SmoothFlag = state;

-         ctx->_TriangleCaps ^= DD_TRI_SMOOTH;

-         break;

-      case GL_POLYGON_STIPPLE:

-         if (ctx->Polygon.StippleFlag == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_POLYGON);

-         ctx->Polygon.StippleFlag = state;

-         ctx->_TriangleCaps ^= DD_TRI_STIPPLE;

-         break;

-      case GL_POLYGON_OFFSET_POINT:

-         if (ctx->Polygon.OffsetPoint == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_POLYGON);

-         ctx->Polygon.OffsetPoint = state;

-         break;

-      case GL_POLYGON_OFFSET_LINE:

-         if (ctx->Polygon.OffsetLine == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_POLYGON);

-         ctx->Polygon.OffsetLine = state;

-         break;

-      case GL_POLYGON_OFFSET_FILL:

-         /*case GL_POLYGON_OFFSET_EXT:*/

-         if (ctx->Polygon.OffsetFill == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_POLYGON);

-         ctx->Polygon.OffsetFill = state;

-         break;

-      case GL_RESCALE_NORMAL_EXT:

-         if (ctx->Transform.RescaleNormals == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_TRANSFORM);

-         ctx->Transform.RescaleNormals = state;

-         break;

-      case GL_SCISSOR_TEST:

-         if (ctx->Scissor.Enabled == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_SCISSOR);

-         ctx->Scissor.Enabled = state;

-         break;

-      case GL_SHARED_TEXTURE_PALETTE_EXT:

-         if (ctx->Texture.SharedPalette == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_TEXTURE);

-         ctx->Texture.SharedPalette = state;

-         break;

-      case GL_STENCIL_TEST:

-         if (ctx->Stencil.Enabled == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_STENCIL);

-         ctx->Stencil.Enabled = state;

-         break;

-      case GL_TEXTURE_1D:

-         if (!enable_texture(ctx, state, TEXTURE_1D_BIT)) {

-            return;

-         }

-         break;

-      case GL_TEXTURE_2D:

-         if (!enable_texture(ctx, state, TEXTURE_2D_BIT)) {

-            return;

-         }

-         break;

-      case GL_TEXTURE_3D:

-         if (!enable_texture(ctx, state, TEXTURE_3D_BIT)) {

-            return;

-         }

-         break;

-      case GL_TEXTURE_GEN_Q:

-         {

-            struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);

-            if (texUnit) {

-               GLuint newenabled = texUnit->TexGenEnabled & ~Q_BIT;

-               if (state)

-                  newenabled |= Q_BIT;

-               if (texUnit->TexGenEnabled == newenabled)

-                  return;

-               FLUSH_VERTICES(ctx, _NEW_TEXTURE);

-               texUnit->TexGenEnabled = newenabled;

-            }

-         }

-         break;

-      case GL_TEXTURE_GEN_R:

-         {

-            struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);

-            if (texUnit) {

-               GLuint newenabled = texUnit->TexGenEnabled & ~R_BIT;

-               if (state)

-                  newenabled |= R_BIT;

-               if (texUnit->TexGenEnabled == newenabled)

-                  return;

-               FLUSH_VERTICES(ctx, _NEW_TEXTURE);

-               texUnit->TexGenEnabled = newenabled;

-            }

-         }

-         break;

-      case GL_TEXTURE_GEN_S:

-         {

-            struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);

-            if (texUnit) {

-               GLuint newenabled = texUnit->TexGenEnabled & ~S_BIT;

-               if (state)

-                  newenabled |= S_BIT;

-               if (texUnit->TexGenEnabled == newenabled)

-                  return;

-               FLUSH_VERTICES(ctx, _NEW_TEXTURE);

-               texUnit->TexGenEnabled = newenabled;

-            }

-         }

-         break;

-      case GL_TEXTURE_GEN_T:

-         {

-            struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);

-            if (texUnit) {

-               GLuint newenabled = texUnit->TexGenEnabled & ~T_BIT;

-               if (state)

-                  newenabled |= T_BIT;

-               if (texUnit->TexGenEnabled == newenabled)

-                  return;

-               FLUSH_VERTICES(ctx, _NEW_TEXTURE);

-               texUnit->TexGenEnabled = newenabled;

-            }

-         }

-         break;

-

-#if FEATURE_ES1

-      case GL_TEXTURE_GEN_STR_OES:

-	 /* disable S, T, and R at the same time */

-	 {

-            struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);

-            if (texUnit) {

-               GLuint newenabled =

-		  texUnit->TexGenEnabled & ~STR_BITS;

-               if (state)

-                  newenabled |= STR_BITS;

-               if (texUnit->TexGenEnabled == newenabled)

-                  return;

-               FLUSH_VERTICES(ctx, _NEW_TEXTURE);

-               texUnit->TexGenEnabled = newenabled;

-            }

-         }

-         break;

-#endif

-

-      /*

-       * CLIENT STATE!!!

-       */

-      case GL_VERTEX_ARRAY:

-      case GL_NORMAL_ARRAY:

-      case GL_COLOR_ARRAY:

-      case GL_INDEX_ARRAY:

-      case GL_TEXTURE_COORD_ARRAY:

-      case GL_EDGE_FLAG_ARRAY:

-      case GL_FOG_COORDINATE_ARRAY_EXT:

-      case GL_SECONDARY_COLOR_ARRAY_EXT:

-      case GL_POINT_SIZE_ARRAY_OES:

-         client_state( ctx, cap, state );

-         return;

-

-      /* GL_SGI_texture_color_table */

-      case GL_TEXTURE_COLOR_TABLE_SGI:

-         CHECK_EXTENSION(SGI_texture_color_table, cap);

-         if (ctx->Texture.Unit[ctx->Texture.CurrentUnit].ColorTableEnabled == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_TEXTURE);

-         ctx->Texture.Unit[ctx->Texture.CurrentUnit].ColorTableEnabled = state;

-         break;

-

-      /* GL_ARB_texture_cube_map */

-      case GL_TEXTURE_CUBE_MAP_ARB:

-         CHECK_EXTENSION(ARB_texture_cube_map, cap);

-         if (!enable_texture(ctx, state, TEXTURE_CUBE_BIT)) {

-            return;

-         }

-         break;

-

-      /* GL_EXT_secondary_color */

-      case GL_COLOR_SUM_EXT:

-         CHECK_EXTENSION2(EXT_secondary_color, ARB_vertex_program, cap);

-         if (ctx->Fog.ColorSumEnabled == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_FOG);

-         ctx->Fog.ColorSumEnabled = state;

-         break;

-

-      /* GL_ARB_multisample */

-      case GL_MULTISAMPLE_ARB:

-         if (ctx->Multisample.Enabled == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);

-         ctx->Multisample.Enabled = state;

-         break;

-      case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB:

-         if (ctx->Multisample.SampleAlphaToCoverage == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);

-         ctx->Multisample.SampleAlphaToCoverage = state;

-         break;

-      case GL_SAMPLE_ALPHA_TO_ONE_ARB:

-         if (ctx->Multisample.SampleAlphaToOne == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);

-         ctx->Multisample.SampleAlphaToOne = state;

-         break;

-      case GL_SAMPLE_COVERAGE_ARB:

-         if (ctx->Multisample.SampleCoverage == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);

-         ctx->Multisample.SampleCoverage = state;

-         break;

-      case GL_SAMPLE_COVERAGE_INVERT_ARB:

-         if (ctx->Multisample.SampleCoverageInvert == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);

-         ctx->Multisample.SampleCoverageInvert = state;

-         break;

-

-      /* GL_IBM_rasterpos_clip */

-      case GL_RASTER_POSITION_UNCLIPPED_IBM:

-         CHECK_EXTENSION(IBM_rasterpos_clip, cap);

-         if (ctx->Transform.RasterPositionUnclipped == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_TRANSFORM);

-         ctx->Transform.RasterPositionUnclipped = state;

-         break;

-

-      /* GL_NV_point_sprite */

-      case GL_POINT_SPRITE_NV:

-         CHECK_EXTENSION2(NV_point_sprite, ARB_point_sprite, cap);

-         if (ctx->Point.PointSprite == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_POINT);

-         ctx->Point.PointSprite = state;

-         break;

-

-#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program

-      case GL_VERTEX_PROGRAM_ARB:

-         CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap);

-         if (ctx->VertexProgram.Enabled == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_PROGRAM); 

-         ctx->VertexProgram.Enabled = state;

-         break;

-      case GL_VERTEX_PROGRAM_POINT_SIZE_ARB:

-         CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap);

-         if (ctx->VertexProgram.PointSizeEnabled == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_PROGRAM);

-         ctx->VertexProgram.PointSizeEnabled = state;

-         break;

-      case GL_VERTEX_PROGRAM_TWO_SIDE_ARB:

-         CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap);

-         if (ctx->VertexProgram.TwoSideEnabled == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_PROGRAM); 

-         ctx->VertexProgram.TwoSideEnabled = state;

-         break;

-#endif

-#if FEATURE_NV_vertex_program

-      case GL_MAP1_VERTEX_ATTRIB0_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB1_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB2_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB3_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB4_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB5_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB6_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB7_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB8_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB9_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB10_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB11_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB12_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB13_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB14_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB15_4_NV:

-         CHECK_EXTENSION(NV_vertex_program, cap);

-         {

-            const GLuint map = (GLuint) (cap - GL_MAP1_VERTEX_ATTRIB0_4_NV);

-            FLUSH_VERTICES(ctx, _NEW_EVAL);

-            ctx->Eval.Map1Attrib[map] = state;

-         }

-         break;

-      case GL_MAP2_VERTEX_ATTRIB0_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB1_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB2_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB3_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB4_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB5_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB6_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB7_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB8_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB9_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB10_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB11_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB12_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB13_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB14_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB15_4_NV:

-         CHECK_EXTENSION(NV_vertex_program, cap);

-         {

-            const GLuint map = (GLuint) (cap - GL_MAP2_VERTEX_ATTRIB0_4_NV);

-            FLUSH_VERTICES(ctx, _NEW_EVAL);

-            ctx->Eval.Map2Attrib[map] = state;

-         }

-         break;

-#endif /* FEATURE_NV_vertex_program */

-

-#if FEATURE_NV_fragment_program

-      case GL_FRAGMENT_PROGRAM_NV:

-         CHECK_EXTENSION(NV_fragment_program, cap);

-         if (ctx->FragmentProgram.Enabled == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_PROGRAM);

-         ctx->FragmentProgram.Enabled = state;

-         break;

-#endif /* FEATURE_NV_fragment_program */

-

-      /* GL_NV_texture_rectangle */

-      case GL_TEXTURE_RECTANGLE_NV:

-         CHECK_EXTENSION(NV_texture_rectangle, cap);

-         if (!enable_texture(ctx, state, TEXTURE_RECT_BIT)) {

-            return;

-         }

-         break;

-

-      /* GL_EXT_stencil_two_side */

-      case GL_STENCIL_TEST_TWO_SIDE_EXT:

-         CHECK_EXTENSION(EXT_stencil_two_side, cap);

-         if (ctx->Stencil.TestTwoSide == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_STENCIL);

-         ctx->Stencil.TestTwoSide = state;

-         if (state) {

-            ctx->Stencil._BackFace = 2;

-            ctx->_TriangleCaps |= DD_TRI_TWOSTENCIL;

-         } else {

-            ctx->Stencil._BackFace = 1;

-            ctx->_TriangleCaps &= ~DD_TRI_TWOSTENCIL;

-         }

-         break;

-

-#if FEATURE_ARB_fragment_program

-      case GL_FRAGMENT_PROGRAM_ARB:

-         CHECK_EXTENSION(ARB_fragment_program, cap);

-         if (ctx->FragmentProgram.Enabled == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_PROGRAM);

-         ctx->FragmentProgram.Enabled = state;

-         break;

-#endif /* FEATURE_ARB_fragment_program */

-

-      /* GL_EXT_depth_bounds_test */

-      case GL_DEPTH_BOUNDS_TEST_EXT:

-         CHECK_EXTENSION(EXT_depth_bounds_test, cap);

-         if (ctx->Depth.BoundsTest == state)

-            return;

-         FLUSH_VERTICES(ctx, _NEW_DEPTH);

-         ctx->Depth.BoundsTest = state;

-         break;

-

-      case GL_DEPTH_CLAMP:

-         if (ctx->Transform.DepthClamp == state)

-            return;

-	 CHECK_EXTENSION(ARB_depth_clamp, cap);

-         FLUSH_VERTICES(ctx, _NEW_TRANSFORM);

-	 ctx->Transform.DepthClamp = state;

-	 break;

-

-#if FEATURE_ATI_fragment_shader

-      case GL_FRAGMENT_SHADER_ATI:

-        CHECK_EXTENSION(ATI_fragment_shader, cap);

-	if (ctx->ATIFragmentShader.Enabled == state)

-	  return;

-	FLUSH_VERTICES(ctx, _NEW_PROGRAM);

-	ctx->ATIFragmentShader.Enabled = state;

-        break;

-#endif

-

-      /* GL_MESA_texture_array */

-      case GL_TEXTURE_1D_ARRAY_EXT:

-         CHECK_EXTENSION(MESA_texture_array, cap);

-         if (!enable_texture(ctx, state, TEXTURE_1D_ARRAY_BIT)) {

-            return;

-         }

-         break;

-

-      case GL_TEXTURE_2D_ARRAY_EXT:

-         CHECK_EXTENSION(MESA_texture_array, cap);

-         if (!enable_texture(ctx, state, TEXTURE_2D_ARRAY_BIT)) {

-            return;

-         }

-         break;

-

-      case GL_TEXTURE_CUBE_MAP_SEAMLESS:

-	 CHECK_EXTENSION(ARB_seamless_cube_map, cap);

-	 ctx->Texture.CubeMapSeamless = state;

-	 break;

-

-#if FEATURE_EXT_transform_feedback

-      case GL_RASTERIZER_DISCARD:

-	 CHECK_EXTENSION(EXT_transform_feedback, cap);

-         if (ctx->TransformFeedback.RasterDiscard != state) {

-            ctx->TransformFeedback.RasterDiscard = state;

-            FLUSH_VERTICES(ctx, _NEW_TRANSFORM);

-         }

-         break;

-#endif

-

-      /* GL 3.1 primitive restart.  Note: this enum is different from

-       * GL_PRIMITIVE_RESTART_NV (which is client state).

-       */

-      case GL_PRIMITIVE_RESTART:

-         if (ctx->VersionMajor * 10 + ctx->VersionMinor < 31) {

-            goto invalid_enum_error;

-         }

-         if (ctx->Array.PrimitiveRestart != state) {

-            FLUSH_VERTICES(ctx, _NEW_TRANSFORM);

-            ctx->Array.PrimitiveRestart = state;

-         }

-         break;

-

-      /* GL3.0 - GL_framebuffer_sRGB */

-      case GL_FRAMEBUFFER_SRGB_EXT:

-	 CHECK_EXTENSION(EXT_framebuffer_sRGB, cap);

-	 ctx->Color.sRGBEnabled = state;

-	 break;

-

-      default:

-         goto invalid_enum_error;

-   }

-

-   if (ctx->Driver.Enable) {

-      ctx->Driver.Enable( ctx, cap, state );

-   }

-

-   return;

-

-invalid_enum_error:

-   _mesa_error(ctx, GL_INVALID_ENUM, "gl%s(0x%x)",

-               state ? "Enable" : "Disable", cap);

-}

-

-

-/**

- * Enable GL capability.  Called by glEnable()

- * \param cap  state to enable.

- */

-void GLAPIENTRY

-_mesa_Enable( GLenum cap )

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   _mesa_set_enable( ctx, cap, GL_TRUE );

-}

-

-

-/**

- * Disable GL capability.  Called by glDisable()

- * \param cap  state to disable.

- */

-void GLAPIENTRY

-_mesa_Disable( GLenum cap )

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   _mesa_set_enable( ctx, cap, GL_FALSE );

-}

-

-

-

-/**

- * Enable/disable an indexed state var.

- */

-void

-_mesa_set_enablei(struct gl_context *ctx, GLenum cap, GLuint index, GLboolean state)

-{

-   ASSERT(state == 0 || state == 1);

-   switch (cap) {

-   case GL_BLEND:

-      if (!ctx->Extensions.EXT_draw_buffers2) {

-         goto invalid_enum_error;

-      }

-      if (index >= ctx->Const.MaxDrawBuffers) {

-         _mesa_error(ctx, GL_INVALID_VALUE, "%s(index=%u)",

-                     state ? "glEnableIndexed" : "glDisableIndexed", index);

-         return;

-      }

-      if (((ctx->Color.BlendEnabled >> index) & 1) != state) {

-         FLUSH_VERTICES(ctx, _NEW_COLOR);

-         if (state)

-            ctx->Color.BlendEnabled |= (1 << index);

-         else

-            ctx->Color.BlendEnabled &= ~(1 << index);

-      }

-      break;

-   default:

-      goto invalid_enum_error;

-   }

-   return;

-

-invalid_enum_error:

-    _mesa_error(ctx, GL_INVALID_ENUM, "%s(cap=%s)",

-                state ? "glEnablei" : "glDisablei",

-                _mesa_lookup_enum_by_nr(cap));

-}

-

-

-void GLAPIENTRY

-_mesa_DisableIndexed( GLenum cap, GLuint index )

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-   _mesa_set_enablei(ctx, cap, index, GL_FALSE);

-}

-

-

-void GLAPIENTRY

-_mesa_EnableIndexed( GLenum cap, GLuint index )

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-   _mesa_set_enablei(ctx, cap, index, GL_TRUE);

-}

-

-

-GLboolean GLAPIENTRY

-_mesa_IsEnabledIndexed( GLenum cap, GLuint index )

-{

-   GET_CURRENT_CONTEXT(ctx);

-   switch (cap) {

-   case GL_BLEND:

-      if (index >= ctx->Const.MaxDrawBuffers) {

-         _mesa_error(ctx, GL_INVALID_VALUE, "glIsEnabledIndexed(index=%u)",

-                     index);

-         return GL_FALSE;

-      }

-      return (ctx->Color.BlendEnabled >> index) & 1;

-   default:

-      _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabledIndexed(cap=%s)",

-                  _mesa_lookup_enum_by_nr(cap));

-      return GL_FALSE;

-   }

-}

-

-

-

-

-#undef CHECK_EXTENSION

-#define CHECK_EXTENSION(EXTNAME)			\

-   if (!ctx->Extensions.EXTNAME) {			\

-      goto invalid_enum_error;				\

-   }

-

-#undef CHECK_EXTENSION2

-#define CHECK_EXTENSION2(EXT1, EXT2)				\

-   if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) {	\

-      goto invalid_enum_error;					\

-   }

-

-

-/**

- * Helper function to determine whether a texture target is enabled.

- */

-static GLboolean

-is_texture_enabled(struct gl_context *ctx, GLbitfield bit)

-{

-   const struct gl_texture_unit *const texUnit =

-       &ctx->Texture.Unit[ctx->Texture.CurrentUnit];

-   return (texUnit->Enabled & bit) ? GL_TRUE : GL_FALSE;

-}

-

-

-/**

- * Return simple enable/disable state.

- *

- * \param cap  state variable to query.

- *

- * Returns the state of the specified capability from the current GL context.

- * For the capabilities associated with extensions verifies that those

- * extensions are effectively present before reporting.

- */

-GLboolean GLAPIENTRY

-_mesa_IsEnabled( GLenum cap )

-{

-   GET_CURRENT_CONTEXT(ctx);

-   switch (cap) {

-      case GL_ALPHA_TEST:

-         return ctx->Color.AlphaEnabled;

-      case GL_AUTO_NORMAL:

-	 return ctx->Eval.AutoNormal;

-      case GL_BLEND:

-         return ctx->Color.BlendEnabled & 1;  /* return state for buffer[0] */

-      case GL_CLIP_PLANE0:

-      case GL_CLIP_PLANE1:

-      case GL_CLIP_PLANE2:

-      case GL_CLIP_PLANE3:

-      case GL_CLIP_PLANE4:

-      case GL_CLIP_PLANE5:

-	 return (ctx->Transform.ClipPlanesEnabled >> (cap - GL_CLIP_PLANE0)) & 1;

-      case GL_COLOR_MATERIAL:

-	 return ctx->Light.ColorMaterialEnabled;

-      case GL_CULL_FACE:

-         return ctx->Polygon.CullFlag;

-      case GL_DEPTH_TEST:

-         return ctx->Depth.Test;

-      case GL_DITHER:

-	 return ctx->Color.DitherFlag;

-      case GL_FOG:

-	 return ctx->Fog.Enabled;

-      case GL_LIGHTING:

-         return ctx->Light.Enabled;

-      case GL_LIGHT0:

-      case GL_LIGHT1:

-      case GL_LIGHT2:

-      case GL_LIGHT3:

-      case GL_LIGHT4:

-      case GL_LIGHT5:

-      case GL_LIGHT6:

-      case GL_LIGHT7:

-         return ctx->Light.Light[cap-GL_LIGHT0].Enabled;

-      case GL_LINE_SMOOTH:

-	 return ctx->Line.SmoothFlag;

-      case GL_LINE_STIPPLE:

-	 return ctx->Line.StippleFlag;

-      case GL_INDEX_LOGIC_OP:

-	 return ctx->Color.IndexLogicOpEnabled;

-      case GL_COLOR_LOGIC_OP:

-	 return ctx->Color.ColorLogicOpEnabled;

-      case GL_MAP1_COLOR_4:

-	 return ctx->Eval.Map1Color4;

-      case GL_MAP1_INDEX:

-	 return ctx->Eval.Map1Index;

-      case GL_MAP1_NORMAL:

-	 return ctx->Eval.Map1Normal;

-      case GL_MAP1_TEXTURE_COORD_1:

-	 return ctx->Eval.Map1TextureCoord1;

-      case GL_MAP1_TEXTURE_COORD_2:

-	 return ctx->Eval.Map1TextureCoord2;

-      case GL_MAP1_TEXTURE_COORD_3:

-	 return ctx->Eval.Map1TextureCoord3;

-      case GL_MAP1_TEXTURE_COORD_4:

-	 return ctx->Eval.Map1TextureCoord4;

-      case GL_MAP1_VERTEX_3:

-	 return ctx->Eval.Map1Vertex3;

-      case GL_MAP1_VERTEX_4:

-	 return ctx->Eval.Map1Vertex4;

-      case GL_MAP2_COLOR_4:

-	 return ctx->Eval.Map2Color4;

-      case GL_MAP2_INDEX:

-	 return ctx->Eval.Map2Index;

-      case GL_MAP2_NORMAL:

-	 return ctx->Eval.Map2Normal;

-      case GL_MAP2_TEXTURE_COORD_1:

-	 return ctx->Eval.Map2TextureCoord1;

-      case GL_MAP2_TEXTURE_COORD_2:

-	 return ctx->Eval.Map2TextureCoord2;

-      case GL_MAP2_TEXTURE_COORD_3:

-	 return ctx->Eval.Map2TextureCoord3;

-      case GL_MAP2_TEXTURE_COORD_4:

-	 return ctx->Eval.Map2TextureCoord4;

-      case GL_MAP2_VERTEX_3:

-	 return ctx->Eval.Map2Vertex3;

-      case GL_MAP2_VERTEX_4:

-	 return ctx->Eval.Map2Vertex4;

-      case GL_NORMALIZE:

-	 return ctx->Transform.Normalize;

-      case GL_POINT_SMOOTH:

-	 return ctx->Point.SmoothFlag;

-      case GL_POLYGON_SMOOTH:

-	 return ctx->Polygon.SmoothFlag;

-      case GL_POLYGON_STIPPLE:

-	 return ctx->Polygon.StippleFlag;

-      case GL_POLYGON_OFFSET_POINT:

-	 return ctx->Polygon.OffsetPoint;

-      case GL_POLYGON_OFFSET_LINE:

-	 return ctx->Polygon.OffsetLine;

-      case GL_POLYGON_OFFSET_FILL:

-      /*case GL_POLYGON_OFFSET_EXT:*/

-	 return ctx->Polygon.OffsetFill;

-      case GL_RESCALE_NORMAL_EXT:

-         return ctx->Transform.RescaleNormals;

-      case GL_SCISSOR_TEST:

-	 return ctx->Scissor.Enabled;

-      case GL_SHARED_TEXTURE_PALETTE_EXT:

-         return ctx->Texture.SharedPalette;

-      case GL_STENCIL_TEST:

-	 return ctx->Stencil.Enabled;

-      case GL_TEXTURE_1D:

-         return is_texture_enabled(ctx, TEXTURE_1D_BIT);

-      case GL_TEXTURE_2D:

-         return is_texture_enabled(ctx, TEXTURE_2D_BIT);

-      case GL_TEXTURE_3D:

-         return is_texture_enabled(ctx, TEXTURE_3D_BIT);

-      case GL_TEXTURE_GEN_Q:

-         {

-            const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);

-            if (texUnit) {

-               return (texUnit->TexGenEnabled & Q_BIT) ? GL_TRUE : GL_FALSE;

-            }

-         }

-         return GL_FALSE;

-      case GL_TEXTURE_GEN_R:

-         {

-            const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);

-            if (texUnit) {

-               return (texUnit->TexGenEnabled & R_BIT) ? GL_TRUE : GL_FALSE;

-            }

-         }

-         return GL_FALSE;

-      case GL_TEXTURE_GEN_S:

-         {

-            const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);

-            if (texUnit) {

-               return (texUnit->TexGenEnabled & S_BIT) ? GL_TRUE : GL_FALSE;

-            }

-         }

-         return GL_FALSE;

-      case GL_TEXTURE_GEN_T:

-         {

-            const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);

-            if (texUnit) {

-               return (texUnit->TexGenEnabled & T_BIT) ? GL_TRUE : GL_FALSE;

-            }

-         }

-         return GL_FALSE;

-#if FEATURE_ES1

-      case GL_TEXTURE_GEN_STR_OES:

-	 {

-            const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);

-            if (texUnit) {

-		    return (texUnit->TexGenEnabled & STR_BITS) == STR_BITS ? GL_TRUE : GL_FALSE;

-            }

-         }

-#endif

-

-      /*

-       * CLIENT STATE!!!

-       */

-      case GL_VERTEX_ARRAY:

-         return (ctx->Array.ArrayObj->Vertex.Enabled != 0);

-      case GL_NORMAL_ARRAY:

-         return (ctx->Array.ArrayObj->Normal.Enabled != 0);

-      case GL_COLOR_ARRAY:

-         return (ctx->Array.ArrayObj->Color.Enabled != 0);

-      case GL_INDEX_ARRAY:

-         return (ctx->Array.ArrayObj->Index.Enabled != 0);

-      case GL_TEXTURE_COORD_ARRAY:

-         return (ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture].Enabled != 0);

-      case GL_EDGE_FLAG_ARRAY:

-         return (ctx->Array.ArrayObj->EdgeFlag.Enabled != 0);

-      case GL_FOG_COORDINATE_ARRAY_EXT:

-         CHECK_EXTENSION(EXT_fog_coord);

-         return (ctx->Array.ArrayObj->FogCoord.Enabled != 0);

-      case GL_SECONDARY_COLOR_ARRAY_EXT:

-         CHECK_EXTENSION(EXT_secondary_color);

-         return (ctx->Array.ArrayObj->SecondaryColor.Enabled != 0);

-#if FEATURE_point_size_array

-      case GL_POINT_SIZE_ARRAY_OES:

-         return (ctx->Array.ArrayObj->PointSize.Enabled != 0);

-#endif

-

-      /* GL_SGI_texture_color_table */

-      case GL_TEXTURE_COLOR_TABLE_SGI:

-         CHECK_EXTENSION(SGI_texture_color_table);

-         return ctx->Texture.Unit[ctx->Texture.CurrentUnit].ColorTableEnabled;

-

-      /* GL_ARB_texture_cube_map */

-      case GL_TEXTURE_CUBE_MAP_ARB:

-         CHECK_EXTENSION(ARB_texture_cube_map);

-         return is_texture_enabled(ctx, TEXTURE_CUBE_BIT);

-

-      /* GL_EXT_secondary_color */

-      case GL_COLOR_SUM_EXT:

-         CHECK_EXTENSION2(EXT_secondary_color, ARB_vertex_program);

-         return ctx->Fog.ColorSumEnabled;

-

-      /* GL_ARB_multisample */

-      case GL_MULTISAMPLE_ARB:

-         return ctx->Multisample.Enabled;

-      case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB:

-         return ctx->Multisample.SampleAlphaToCoverage;

-      case GL_SAMPLE_ALPHA_TO_ONE_ARB:

-         return ctx->Multisample.SampleAlphaToOne;

-      case GL_SAMPLE_COVERAGE_ARB:

-         return ctx->Multisample.SampleCoverage;

-      case GL_SAMPLE_COVERAGE_INVERT_ARB:

-         return ctx->Multisample.SampleCoverageInvert;

-

-      /* GL_IBM_rasterpos_clip */

-      case GL_RASTER_POSITION_UNCLIPPED_IBM:

-         CHECK_EXTENSION(IBM_rasterpos_clip);

-         return ctx->Transform.RasterPositionUnclipped;

-

-      /* GL_NV_point_sprite */

-      case GL_POINT_SPRITE_NV:

-         CHECK_EXTENSION2(NV_point_sprite, ARB_point_sprite)

-         return ctx->Point.PointSprite;

-

-#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program

-      case GL_VERTEX_PROGRAM_ARB:

-         CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program);

-         return ctx->VertexProgram.Enabled;

-      case GL_VERTEX_PROGRAM_POINT_SIZE_ARB:

-         CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program);

-         return ctx->VertexProgram.PointSizeEnabled;

-      case GL_VERTEX_PROGRAM_TWO_SIDE_ARB:

-         CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program);

-         return ctx->VertexProgram.TwoSideEnabled;

-#endif

-#if FEATURE_NV_vertex_program

-      case GL_VERTEX_ATTRIB_ARRAY0_NV:

-      case GL_VERTEX_ATTRIB_ARRAY1_NV:

-      case GL_VERTEX_ATTRIB_ARRAY2_NV:

-      case GL_VERTEX_ATTRIB_ARRAY3_NV:

-      case GL_VERTEX_ATTRIB_ARRAY4_NV:

-      case GL_VERTEX_ATTRIB_ARRAY5_NV:

-      case GL_VERTEX_ATTRIB_ARRAY6_NV:

-      case GL_VERTEX_ATTRIB_ARRAY7_NV:

-      case GL_VERTEX_ATTRIB_ARRAY8_NV:

-      case GL_VERTEX_ATTRIB_ARRAY9_NV:

-      case GL_VERTEX_ATTRIB_ARRAY10_NV:

-      case GL_VERTEX_ATTRIB_ARRAY11_NV:

-      case GL_VERTEX_ATTRIB_ARRAY12_NV:

-      case GL_VERTEX_ATTRIB_ARRAY13_NV:

-      case GL_VERTEX_ATTRIB_ARRAY14_NV:

-      case GL_VERTEX_ATTRIB_ARRAY15_NV:

-         CHECK_EXTENSION(NV_vertex_program);

-         {

-            GLint n = (GLint) cap - GL_VERTEX_ATTRIB_ARRAY0_NV;

-            ASSERT(n < Elements(ctx->Array.ArrayObj->VertexAttrib));

-            return (ctx->Array.ArrayObj->VertexAttrib[n].Enabled != 0);

-         }

-      case GL_MAP1_VERTEX_ATTRIB0_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB1_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB2_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB3_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB4_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB5_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB6_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB7_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB8_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB9_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB10_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB11_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB12_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB13_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB14_4_NV:

-      case GL_MAP1_VERTEX_ATTRIB15_4_NV:

-         CHECK_EXTENSION(NV_vertex_program);

-         {

-            const GLuint map = (GLuint) (cap - GL_MAP1_VERTEX_ATTRIB0_4_NV);

-            return ctx->Eval.Map1Attrib[map];

-         }

-      case GL_MAP2_VERTEX_ATTRIB0_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB1_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB2_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB3_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB4_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB5_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB6_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB7_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB8_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB9_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB10_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB11_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB12_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB13_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB14_4_NV:

-      case GL_MAP2_VERTEX_ATTRIB15_4_NV:

-         CHECK_EXTENSION(NV_vertex_program);

-         {

-            const GLuint map = (GLuint) (cap - GL_MAP2_VERTEX_ATTRIB0_4_NV);

-            return ctx->Eval.Map2Attrib[map];

-         }

-#endif /* FEATURE_NV_vertex_program */

-

-#if FEATURE_NV_fragment_program

-      case GL_FRAGMENT_PROGRAM_NV:

-         CHECK_EXTENSION(NV_fragment_program);

-         return ctx->FragmentProgram.Enabled;

-#endif /* FEATURE_NV_fragment_program */

-

-      /* GL_NV_texture_rectangle */

-      case GL_TEXTURE_RECTANGLE_NV:

-         CHECK_EXTENSION(NV_texture_rectangle);

-         return is_texture_enabled(ctx, TEXTURE_RECT_BIT);

-

-      /* GL_EXT_stencil_two_side */

-      case GL_STENCIL_TEST_TWO_SIDE_EXT:

-         CHECK_EXTENSION(EXT_stencil_two_side);

-         return ctx->Stencil.TestTwoSide;

-

-#if FEATURE_ARB_fragment_program

-      case GL_FRAGMENT_PROGRAM_ARB:

-         return ctx->FragmentProgram.Enabled;

-#endif /* FEATURE_ARB_fragment_program */

-

-      /* GL_EXT_depth_bounds_test */

-      case GL_DEPTH_BOUNDS_TEST_EXT:

-         CHECK_EXTENSION(EXT_depth_bounds_test);

-         return ctx->Depth.BoundsTest;

-

-      /* GL_ARB_depth_clamp */

-      case GL_DEPTH_CLAMP:

-         CHECK_EXTENSION(ARB_depth_clamp);

-         return ctx->Transform.DepthClamp;

-

-#if FEATURE_ATI_fragment_shader

-      case GL_FRAGMENT_SHADER_ATI:

-	 CHECK_EXTENSION(ATI_fragment_shader);

-	 return ctx->ATIFragmentShader.Enabled;

-#endif /* FEATURE_ATI_fragment_shader */

-

-      case GL_TEXTURE_CUBE_MAP_SEAMLESS:

-	 CHECK_EXTENSION(ARB_seamless_cube_map);

-	 return ctx->Texture.CubeMapSeamless;

-

-#if FEATURE_EXT_transform_feedback

-      case GL_RASTERIZER_DISCARD:

-	 CHECK_EXTENSION(EXT_transform_feedback);

-         return ctx->TransformFeedback.RasterDiscard;

-#endif

-

-      /* GL_NV_primitive_restart */

-      case GL_PRIMITIVE_RESTART_NV:

-	 if (!ctx->Extensions.NV_primitive_restart) {

-            goto invalid_enum_error;

-         }

-         return ctx->Array.PrimitiveRestart;

-

-      /* GL 3.1 primitive restart */

-      case GL_PRIMITIVE_RESTART:

-         if (ctx->VersionMajor * 10 + ctx->VersionMinor < 31) {

-            goto invalid_enum_error;

-         }

-         return ctx->Array.PrimitiveRestart;

-

-      /* GL3.0 - GL_framebuffer_sRGB */

-      case GL_FRAMEBUFFER_SRGB_EXT:

-	 CHECK_EXTENSION(EXT_framebuffer_sRGB);

-	 return ctx->Color.sRGBEnabled;

-

-      default:

-         goto invalid_enum_error;

-   }

-

-   return GL_FALSE;

-

-invalid_enum_error:

-   _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled(0x%x)", (int) cap);

-   return GL_FALSE;

-}

+/**
+ * \file enable.c
+ * Enable/disable/query GL capabilities.
+ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.0.3
+ *
+ * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#include "glheader.h"
+#include "context.h"
+#include "enable.h"
+#include "light.h"
+#include "simple_list.h"
+#include "mfeatures.h"
+#include "mtypes.h"
+#include "enums.h"
+#include "api_arrayelt.h"
+#include "texstate.h"
+
+
+
+#define CHECK_EXTENSION(EXTNAME, CAP)					\
+   if (!ctx->Extensions.EXTNAME) {					\
+      goto invalid_enum_error;						\
+   }
+
+
+/**
+ * Helper to enable/disable client-side state.
+ */
+static void
+client_state(struct gl_context *ctx, GLenum cap, GLboolean state)
+{
+   struct gl_array_object *arrayObj = ctx->Array.ArrayObj;
+   GLuint flag;
+   GLboolean *var;
+
+   switch (cap) {
+      case GL_VERTEX_ARRAY:
+         var = &arrayObj->Vertex.Enabled;
+         flag = _NEW_ARRAY_VERTEX;
+         break;
+      case GL_NORMAL_ARRAY:
+         var = &arrayObj->Normal.Enabled;
+         flag = _NEW_ARRAY_NORMAL;
+         break;
+      case GL_COLOR_ARRAY:
+         var = &arrayObj->Color.Enabled;
+         flag = _NEW_ARRAY_COLOR0;
+         break;
+      case GL_INDEX_ARRAY:
+         var = &arrayObj->Index.Enabled;
+         flag = _NEW_ARRAY_INDEX;
+         break;
+      case GL_TEXTURE_COORD_ARRAY:
+         var = &arrayObj->TexCoord[ctx->Array.ActiveTexture].Enabled;
+         flag = _NEW_ARRAY_TEXCOORD(ctx->Array.ActiveTexture);
+         break;
+      case GL_EDGE_FLAG_ARRAY:
+         var = &arrayObj->EdgeFlag.Enabled;
+         flag = _NEW_ARRAY_EDGEFLAG;
+         break;
+      case GL_FOG_COORDINATE_ARRAY_EXT:
+         var = &arrayObj->FogCoord.Enabled;
+         flag = _NEW_ARRAY_FOGCOORD;
+         break;
+      case GL_SECONDARY_COLOR_ARRAY_EXT:
+         var = &arrayObj->SecondaryColor.Enabled;
+         flag = _NEW_ARRAY_COLOR1;
+         break;
+
+#if FEATURE_point_size_array
+      case GL_POINT_SIZE_ARRAY_OES:
+         var = &arrayObj->PointSize.Enabled;
+         flag = _NEW_ARRAY_POINT_SIZE;
+         break;
+#endif
+
+#if FEATURE_NV_vertex_program
+      case GL_VERTEX_ATTRIB_ARRAY0_NV:
+      case GL_VERTEX_ATTRIB_ARRAY1_NV:
+      case GL_VERTEX_ATTRIB_ARRAY2_NV:
+      case GL_VERTEX_ATTRIB_ARRAY3_NV:
+      case GL_VERTEX_ATTRIB_ARRAY4_NV:
+      case GL_VERTEX_ATTRIB_ARRAY5_NV:
+      case GL_VERTEX_ATTRIB_ARRAY6_NV:
+      case GL_VERTEX_ATTRIB_ARRAY7_NV:
+      case GL_VERTEX_ATTRIB_ARRAY8_NV:
+      case GL_VERTEX_ATTRIB_ARRAY9_NV:
+      case GL_VERTEX_ATTRIB_ARRAY10_NV:
+      case GL_VERTEX_ATTRIB_ARRAY11_NV:
+      case GL_VERTEX_ATTRIB_ARRAY12_NV:
+      case GL_VERTEX_ATTRIB_ARRAY13_NV:
+      case GL_VERTEX_ATTRIB_ARRAY14_NV:
+      case GL_VERTEX_ATTRIB_ARRAY15_NV:
+         CHECK_EXTENSION(NV_vertex_program, cap);
+         {
+            GLint n = (GLint) cap - GL_VERTEX_ATTRIB_ARRAY0_NV;
+            ASSERT(n < Elements(ctx->Array.ArrayObj->VertexAttrib));
+            var = &arrayObj->VertexAttrib[n].Enabled;
+            flag = _NEW_ARRAY_ATTRIB(n);
+         }
+         break;
+#endif /* FEATURE_NV_vertex_program */
+
+      /* GL_NV_primitive_restart */
+      case GL_PRIMITIVE_RESTART_NV:
+	 if (!ctx->Extensions.NV_primitive_restart) {
+            goto invalid_enum_error;
+         }
+         var = &ctx->Array.PrimitiveRestart;
+         flag = 0;
+         break;
+
+      default:
+         goto invalid_enum_error;
+   }
+
+   if (*var == state)
+      return;
+
+   FLUSH_VERTICES(ctx, _NEW_ARRAY);
+   ctx->Array.NewState |= flag;
+
+   _ae_invalidate_state(ctx, _NEW_ARRAY);
+
+   *var = state;
+
+   if (state)
+      ctx->Array.ArrayObj->_Enabled |= flag;
+   else
+      ctx->Array.ArrayObj->_Enabled &= ~flag;
+
+   if (ctx->Driver.Enable) {
+      ctx->Driver.Enable( ctx, cap, state );
+   }
+
+   return;
+
+invalid_enum_error:
+   _mesa_error(ctx, GL_INVALID_ENUM, "gl%sClientState(0x%x)",
+               state ? "Enable" : "Disable", cap);
+}
+
+
+/**
+ * Enable GL capability.
+ * \param cap  state to enable/disable.
+ *
+ * Get's the current context, assures that we're outside glBegin()/glEnd() and
+ * calls client_state().
+ */
+void GLAPIENTRY
+_mesa_EnableClientState( GLenum cap )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+   client_state( ctx, cap, GL_TRUE );
+}
+
+
+/**
+ * Disable GL capability.
+ * \param cap  state to enable/disable.
+ *
+ * Get's the current context, assures that we're outside glBegin()/glEnd() and
+ * calls client_state().
+ */
+void GLAPIENTRY
+_mesa_DisableClientState( GLenum cap )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+   client_state( ctx, cap, GL_FALSE );
+}
+
+
+#undef CHECK_EXTENSION
+#define CHECK_EXTENSION(EXTNAME, CAP)					\
+   if (!ctx->Extensions.EXTNAME) {					\
+      goto invalid_enum_error;						\
+   }
+
+#define CHECK_EXTENSION2(EXT1, EXT2, CAP)				\
+   if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) {		\
+      goto invalid_enum_error;						\
+   }
+
+
+
+/**
+ * Return pointer to current texture unit for setting/getting coordinate
+ * state.
+ * Note that we'll set GL_INVALID_OPERATION if the active texture unit is
+ * higher than the number of supported coordinate units.  And we'll return NULL.
+ */
+static struct gl_texture_unit *
+get_texcoord_unit(struct gl_context *ctx)
+{
+   if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glEnable/Disable(texcoord unit)");
+      return NULL;
+   }
+   else {
+      return &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+   }
+}
+
+
+/**
+ * Helper function to enable or disable a texture target.
+ * \param bit  one of the TEXTURE_x_BIT values
+ * \return GL_TRUE if state is changing or GL_FALSE if no change
+ */
+static GLboolean
+enable_texture(struct gl_context *ctx, GLboolean state, GLbitfield texBit)
+{
+   struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
+   const GLbitfield newenabled = state
+      ? (texUnit->Enabled | texBit) : (texUnit->Enabled & ~texBit);
+
+   if (texUnit->Enabled == newenabled)
+       return GL_FALSE;
+
+   FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+   texUnit->Enabled = newenabled;
+   return GL_TRUE;
+}
+
+
+/**
+ * Helper function to enable or disable state.
+ *
+ * \param ctx GL context.
+ * \param cap  the state to enable/disable
+ * \param state whether to enable or disable the specified capability.
+ *
+ * Updates the current context and flushes the vertices as needed. For
+ * capabilities associated with extensions it verifies that those extensions
+ * are effectivly present before updating. Notifies the driver via
+ * dd_function_table::Enable.
+ */
+void
+_mesa_set_enable(struct gl_context *ctx, GLenum cap, GLboolean state)
+{
+   if (MESA_VERBOSE & VERBOSE_API)
+      _mesa_debug(ctx, "%s %s (newstate is %x)\n",
+                  state ? "glEnable" : "glDisable",
+                  _mesa_lookup_enum_by_nr(cap),
+                  ctx->NewState);
+
+   switch (cap) {
+      case GL_ALPHA_TEST:
+         if (ctx->Color.AlphaEnabled == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_COLOR);
+         ctx->Color.AlphaEnabled = state;
+         break;
+      case GL_AUTO_NORMAL:
+         if (ctx->Eval.AutoNormal == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_EVAL);
+         ctx->Eval.AutoNormal = state;
+         break;
+      case GL_BLEND:
+         {
+            GLbitfield newEnabled = state * ((1 << ctx->Const.MaxDrawBuffers) - 1);
+            if (newEnabled != ctx->Color.BlendEnabled) {
+               FLUSH_VERTICES(ctx, _NEW_COLOR);
+               ctx->Color.BlendEnabled = newEnabled;
+            }
+         }
+         break;
+#if FEATURE_userclip
+      case GL_CLIP_PLANE0:
+      case GL_CLIP_PLANE1:
+      case GL_CLIP_PLANE2:
+      case GL_CLIP_PLANE3:
+      case GL_CLIP_PLANE4:
+      case GL_CLIP_PLANE5:
+         {
+            const GLuint p = cap - GL_CLIP_PLANE0;
+
+            if ((ctx->Transform.ClipPlanesEnabled & (1 << p)) == ((GLuint) state << p))
+               return;
+
+            FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
+
+            if (state) {
+               ctx->Transform.ClipPlanesEnabled |= (1 << p);
+
+               if (_math_matrix_is_dirty(ctx->ProjectionMatrixStack.Top))
+                  _math_matrix_analyse( ctx->ProjectionMatrixStack.Top );
+
+               /* This derived state also calculated in clip.c and
+                * from _mesa_update_state() on changes to EyeUserPlane
+                * and ctx->ProjectionMatrix respectively.
+                */
+               _mesa_transform_vector( ctx->Transform._ClipUserPlane[p],
+                                    ctx->Transform.EyeUserPlane[p],
+                                    ctx->ProjectionMatrixStack.Top->inv );
+            }
+            else {
+               ctx->Transform.ClipPlanesEnabled &= ~(1 << p);
+            }               
+         }
+         break;
+#endif
+      case GL_COLOR_MATERIAL:
+         if (ctx->Light.ColorMaterialEnabled == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_LIGHT);
+         FLUSH_CURRENT(ctx, 0);
+         ctx->Light.ColorMaterialEnabled = state;
+         if (state) {
+            _mesa_update_color_material( ctx,
+                                  ctx->Current.Attrib[VERT_ATTRIB_COLOR0] );
+         }
+         break;
+      case GL_CULL_FACE:
+         if (ctx->Polygon.CullFlag == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_POLYGON);
+         ctx->Polygon.CullFlag = state;
+         break;
+      case GL_DEPTH_TEST:
+         if (ctx->Depth.Test == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_DEPTH);
+         ctx->Depth.Test = state;
+         break;
+      case GL_DITHER:
+         if (ctx->NoDither) {
+            state = GL_FALSE; /* MESA_NO_DITHER env var */
+         }
+         if (ctx->Color.DitherFlag == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_COLOR);
+         ctx->Color.DitherFlag = state;
+         break;
+      case GL_FOG:
+         if (ctx->Fog.Enabled == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_FOG);
+         ctx->Fog.Enabled = state;
+         break;
+      case GL_LIGHT0:
+      case GL_LIGHT1:
+      case GL_LIGHT2:
+      case GL_LIGHT3:
+      case GL_LIGHT4:
+      case GL_LIGHT5:
+      case GL_LIGHT6:
+      case GL_LIGHT7:
+         if (ctx->Light.Light[cap-GL_LIGHT0].Enabled == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_LIGHT);
+         ctx->Light.Light[cap-GL_LIGHT0].Enabled = state;
+         if (state) {
+            insert_at_tail(&ctx->Light.EnabledList,
+                           &ctx->Light.Light[cap-GL_LIGHT0]);
+         }
+         else {
+            remove_from_list(&ctx->Light.Light[cap-GL_LIGHT0]);
+         }
+         break;
+      case GL_LIGHTING:
+         if (ctx->Light.Enabled == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_LIGHT);
+         ctx->Light.Enabled = state;
+         if (ctx->Light.Enabled && ctx->Light.Model.TwoSide)
+            ctx->_TriangleCaps |= DD_TRI_LIGHT_TWOSIDE;
+         else
+            ctx->_TriangleCaps &= ~DD_TRI_LIGHT_TWOSIDE;
+         break;
+      case GL_LINE_SMOOTH:
+         if (ctx->Line.SmoothFlag == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_LINE);
+         ctx->Line.SmoothFlag = state;
+         ctx->_TriangleCaps ^= DD_LINE_SMOOTH;
+         break;
+      case GL_LINE_STIPPLE:
+         if (ctx->Line.StippleFlag == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_LINE);
+         ctx->Line.StippleFlag = state;
+         ctx->_TriangleCaps ^= DD_LINE_STIPPLE;
+         break;
+      case GL_INDEX_LOGIC_OP:
+         if (ctx->Color.IndexLogicOpEnabled == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_COLOR);
+         ctx->Color.IndexLogicOpEnabled = state;
+         break;
+      case GL_COLOR_LOGIC_OP:
+         if (ctx->Color.ColorLogicOpEnabled == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_COLOR);
+         ctx->Color.ColorLogicOpEnabled = state;
+         break;
+      case GL_MAP1_COLOR_4:
+         if (ctx->Eval.Map1Color4 == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_EVAL);
+         ctx->Eval.Map1Color4 = state;
+         break;
+      case GL_MAP1_INDEX:
+         if (ctx->Eval.Map1Index == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_EVAL);
+         ctx->Eval.Map1Index = state;
+         break;
+      case GL_MAP1_NORMAL:
+         if (ctx->Eval.Map1Normal == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_EVAL);
+         ctx->Eval.Map1Normal = state;
+         break;
+      case GL_MAP1_TEXTURE_COORD_1:
+         if (ctx->Eval.Map1TextureCoord1 == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_EVAL);
+         ctx->Eval.Map1TextureCoord1 = state;
+         break;
+      case GL_MAP1_TEXTURE_COORD_2:
+         if (ctx->Eval.Map1TextureCoord2 == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_EVAL);
+         ctx->Eval.Map1TextureCoord2 = state;
+         break;
+      case GL_MAP1_TEXTURE_COORD_3:
+         if (ctx->Eval.Map1TextureCoord3 == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_EVAL);
+         ctx->Eval.Map1TextureCoord3 = state;
+         break;
+      case GL_MAP1_TEXTURE_COORD_4:
+         if (ctx->Eval.Map1TextureCoord4 == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_EVAL);
+         ctx->Eval.Map1TextureCoord4 = state;
+         break;
+      case GL_MAP1_VERTEX_3:
+         if (ctx->Eval.Map1Vertex3 == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_EVAL);
+         ctx->Eval.Map1Vertex3 = state;
+         break;
+      case GL_MAP1_VERTEX_4:
+         if (ctx->Eval.Map1Vertex4 == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_EVAL);
+         ctx->Eval.Map1Vertex4 = state;
+         break;
+      case GL_MAP2_COLOR_4:
+         if (ctx->Eval.Map2Color4 == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_EVAL);
+         ctx->Eval.Map2Color4 = state;
+         break;
+      case GL_MAP2_INDEX:
+         if (ctx->Eval.Map2Index == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_EVAL);
+         ctx->Eval.Map2Index = state;
+         break;
+      case GL_MAP2_NORMAL:
+         if (ctx->Eval.Map2Normal == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_EVAL);
+         ctx->Eval.Map2Normal = state;
+         break;
+      case GL_MAP2_TEXTURE_COORD_1:
+         if (ctx->Eval.Map2TextureCoord1 == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_EVAL);
+         ctx->Eval.Map2TextureCoord1 = state;
+         break;
+      case GL_MAP2_TEXTURE_COORD_2:
+         if (ctx->Eval.Map2TextureCoord2 == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_EVAL);
+         ctx->Eval.Map2TextureCoord2 = state;
+         break;
+      case GL_MAP2_TEXTURE_COORD_3:
+         if (ctx->Eval.Map2TextureCoord3 == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_EVAL);
+         ctx->Eval.Map2TextureCoord3 = state;
+         break;
+      case GL_MAP2_TEXTURE_COORD_4:
+         if (ctx->Eval.Map2TextureCoord4 == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_EVAL);
+         ctx->Eval.Map2TextureCoord4 = state;
+         break;
+      case GL_MAP2_VERTEX_3:
+         if (ctx->Eval.Map2Vertex3 == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_EVAL);
+         ctx->Eval.Map2Vertex3 = state;
+         break;
+      case GL_MAP2_VERTEX_4:
+         if (ctx->Eval.Map2Vertex4 == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_EVAL);
+         ctx->Eval.Map2Vertex4 = state;
+         break;
+      case GL_NORMALIZE:
+         if (ctx->Transform.Normalize == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
+         ctx->Transform.Normalize = state;
+         break;
+      case GL_POINT_SMOOTH:
+         if (ctx->Point.SmoothFlag == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_POINT);
+         ctx->Point.SmoothFlag = state;
+         ctx->_TriangleCaps ^= DD_POINT_SMOOTH;
+         break;
+      case GL_POLYGON_SMOOTH:
+         if (ctx->Polygon.SmoothFlag == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_POLYGON);
+         ctx->Polygon.SmoothFlag = state;
+         ctx->_TriangleCaps ^= DD_TRI_SMOOTH;
+         break;
+      case GL_POLYGON_STIPPLE:
+         if (ctx->Polygon.StippleFlag == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_POLYGON);
+         ctx->Polygon.StippleFlag = state;
+         ctx->_TriangleCaps ^= DD_TRI_STIPPLE;
+         break;
+      case GL_POLYGON_OFFSET_POINT:
+         if (ctx->Polygon.OffsetPoint == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_POLYGON);
+         ctx->Polygon.OffsetPoint = state;
+         break;
+      case GL_POLYGON_OFFSET_LINE:
+         if (ctx->Polygon.OffsetLine == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_POLYGON);
+         ctx->Polygon.OffsetLine = state;
+         break;
+      case GL_POLYGON_OFFSET_FILL:
+         /*case GL_POLYGON_OFFSET_EXT:*/
+         if (ctx->Polygon.OffsetFill == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_POLYGON);
+         ctx->Polygon.OffsetFill = state;
+         break;
+      case GL_RESCALE_NORMAL_EXT:
+         if (ctx->Transform.RescaleNormals == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
+         ctx->Transform.RescaleNormals = state;
+         break;
+      case GL_SCISSOR_TEST:
+         if (ctx->Scissor.Enabled == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_SCISSOR);
+         ctx->Scissor.Enabled = state;
+         break;
+      case GL_SHARED_TEXTURE_PALETTE_EXT:
+         if (ctx->Texture.SharedPalette == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+         ctx->Texture.SharedPalette = state;
+         break;
+      case GL_STENCIL_TEST:
+         if (ctx->Stencil.Enabled == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_STENCIL);
+         ctx->Stencil.Enabled = state;
+         break;
+      case GL_TEXTURE_1D:
+         if (!enable_texture(ctx, state, TEXTURE_1D_BIT)) {
+            return;
+         }
+         break;
+      case GL_TEXTURE_2D:
+         if (!enable_texture(ctx, state, TEXTURE_2D_BIT)) {
+            return;
+         }
+         break;
+      case GL_TEXTURE_3D:
+         if (!enable_texture(ctx, state, TEXTURE_3D_BIT)) {
+            return;
+         }
+         break;
+      case GL_TEXTURE_GEN_Q:
+         {
+            struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+            if (texUnit) {
+               GLuint newenabled = texUnit->TexGenEnabled & ~Q_BIT;
+               if (state)
+                  newenabled |= Q_BIT;
+               if (texUnit->TexGenEnabled == newenabled)
+                  return;
+               FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+               texUnit->TexGenEnabled = newenabled;
+            }
+         }
+         break;
+      case GL_TEXTURE_GEN_R:
+         {
+            struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+            if (texUnit) {
+               GLuint newenabled = texUnit->TexGenEnabled & ~R_BIT;
+               if (state)
+                  newenabled |= R_BIT;
+               if (texUnit->TexGenEnabled == newenabled)
+                  return;
+               FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+               texUnit->TexGenEnabled = newenabled;
+            }
+         }
+         break;
+      case GL_TEXTURE_GEN_S:
+         {
+            struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+            if (texUnit) {
+               GLuint newenabled = texUnit->TexGenEnabled & ~S_BIT;
+               if (state)
+                  newenabled |= S_BIT;
+               if (texUnit->TexGenEnabled == newenabled)
+                  return;
+               FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+               texUnit->TexGenEnabled = newenabled;
+            }
+         }
+         break;
+      case GL_TEXTURE_GEN_T:
+         {
+            struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+            if (texUnit) {
+               GLuint newenabled = texUnit->TexGenEnabled & ~T_BIT;
+               if (state)
+                  newenabled |= T_BIT;
+               if (texUnit->TexGenEnabled == newenabled)
+                  return;
+               FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+               texUnit->TexGenEnabled = newenabled;
+            }
+         }
+         break;
+
+#if FEATURE_ES1
+      case GL_TEXTURE_GEN_STR_OES:
+	 /* disable S, T, and R at the same time */
+	 {
+            struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+            if (texUnit) {
+               GLuint newenabled =
+		  texUnit->TexGenEnabled & ~STR_BITS;
+               if (state)
+                  newenabled |= STR_BITS;
+               if (texUnit->TexGenEnabled == newenabled)
+                  return;
+               FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+               texUnit->TexGenEnabled = newenabled;
+            }
+         }
+         break;
+#endif
+
+      /*
+       * CLIENT STATE!!!
+       */
+      case GL_VERTEX_ARRAY:
+      case GL_NORMAL_ARRAY:
+      case GL_COLOR_ARRAY:
+      case GL_INDEX_ARRAY:
+      case GL_TEXTURE_COORD_ARRAY:
+      case GL_EDGE_FLAG_ARRAY:
+      case GL_FOG_COORDINATE_ARRAY_EXT:
+      case GL_SECONDARY_COLOR_ARRAY_EXT:
+      case GL_POINT_SIZE_ARRAY_OES:
+         client_state( ctx, cap, state );
+         return;
+
+      /* GL_SGI_texture_color_table */
+      case GL_TEXTURE_COLOR_TABLE_SGI:
+         CHECK_EXTENSION(SGI_texture_color_table, cap);
+         if (ctx->Texture.Unit[ctx->Texture.CurrentUnit].ColorTableEnabled == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+         ctx->Texture.Unit[ctx->Texture.CurrentUnit].ColorTableEnabled = state;
+         break;
+
+      /* GL_ARB_texture_cube_map */
+      case GL_TEXTURE_CUBE_MAP_ARB:
+         CHECK_EXTENSION(ARB_texture_cube_map, cap);
+         if (!enable_texture(ctx, state, TEXTURE_CUBE_BIT)) {
+            return;
+         }
+         break;
+
+      /* GL_EXT_secondary_color */
+      case GL_COLOR_SUM_EXT:
+         CHECK_EXTENSION2(EXT_secondary_color, ARB_vertex_program, cap);
+         if (ctx->Fog.ColorSumEnabled == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_FOG);
+         ctx->Fog.ColorSumEnabled = state;
+         break;
+
+      /* GL_ARB_multisample */
+      case GL_MULTISAMPLE_ARB:
+         if (ctx->Multisample.Enabled == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
+         ctx->Multisample.Enabled = state;
+         break;
+      case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB:
+         if (ctx->Multisample.SampleAlphaToCoverage == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
+         ctx->Multisample.SampleAlphaToCoverage = state;
+         break;
+      case GL_SAMPLE_ALPHA_TO_ONE_ARB:
+         if (ctx->Multisample.SampleAlphaToOne == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
+         ctx->Multisample.SampleAlphaToOne = state;
+         break;
+      case GL_SAMPLE_COVERAGE_ARB:
+         if (ctx->Multisample.SampleCoverage == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
+         ctx->Multisample.SampleCoverage = state;
+         break;
+      case GL_SAMPLE_COVERAGE_INVERT_ARB:
+         if (ctx->Multisample.SampleCoverageInvert == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
+         ctx->Multisample.SampleCoverageInvert = state;
+         break;
+
+      /* GL_IBM_rasterpos_clip */
+      case GL_RASTER_POSITION_UNCLIPPED_IBM:
+         CHECK_EXTENSION(IBM_rasterpos_clip, cap);
+         if (ctx->Transform.RasterPositionUnclipped == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
+         ctx->Transform.RasterPositionUnclipped = state;
+         break;
+
+      /* GL_NV_point_sprite */
+      case GL_POINT_SPRITE_NV:
+         CHECK_EXTENSION2(NV_point_sprite, ARB_point_sprite, cap);
+         if (ctx->Point.PointSprite == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_POINT);
+         ctx->Point.PointSprite = state;
+         break;
+
+#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
+      case GL_VERTEX_PROGRAM_ARB:
+         CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap);
+         if (ctx->VertexProgram.Enabled == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_PROGRAM); 
+         ctx->VertexProgram.Enabled = state;
+         break;
+      case GL_VERTEX_PROGRAM_POINT_SIZE_ARB:
+         CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap);
+         if (ctx->VertexProgram.PointSizeEnabled == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_PROGRAM);
+         ctx->VertexProgram.PointSizeEnabled = state;
+         break;
+      case GL_VERTEX_PROGRAM_TWO_SIDE_ARB:
+         CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap);
+         if (ctx->VertexProgram.TwoSideEnabled == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_PROGRAM); 
+         ctx->VertexProgram.TwoSideEnabled = state;
+         break;
+#endif
+#if FEATURE_NV_vertex_program
+      case GL_MAP1_VERTEX_ATTRIB0_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB1_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB2_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB3_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB4_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB5_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB6_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB7_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB8_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB9_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB10_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB11_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB12_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB13_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB14_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB15_4_NV:
+         CHECK_EXTENSION(NV_vertex_program, cap);
+         {
+            const GLuint map = (GLuint) (cap - GL_MAP1_VERTEX_ATTRIB0_4_NV);
+            FLUSH_VERTICES(ctx, _NEW_EVAL);
+            ctx->Eval.Map1Attrib[map] = state;
+         }
+         break;
+      case GL_MAP2_VERTEX_ATTRIB0_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB1_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB2_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB3_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB4_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB5_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB6_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB7_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB8_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB9_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB10_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB11_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB12_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB13_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB14_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB15_4_NV:
+         CHECK_EXTENSION(NV_vertex_program, cap);
+         {
+            const GLuint map = (GLuint) (cap - GL_MAP2_VERTEX_ATTRIB0_4_NV);
+            FLUSH_VERTICES(ctx, _NEW_EVAL);
+            ctx->Eval.Map2Attrib[map] = state;
+         }
+         break;
+#endif /* FEATURE_NV_vertex_program */
+
+#if FEATURE_NV_fragment_program
+      case GL_FRAGMENT_PROGRAM_NV:
+         CHECK_EXTENSION(NV_fragment_program, cap);
+         if (ctx->FragmentProgram.Enabled == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_PROGRAM);
+         ctx->FragmentProgram.Enabled = state;
+         break;
+#endif /* FEATURE_NV_fragment_program */
+
+      /* GL_NV_texture_rectangle */
+      case GL_TEXTURE_RECTANGLE_NV:
+         CHECK_EXTENSION(NV_texture_rectangle, cap);
+         if (!enable_texture(ctx, state, TEXTURE_RECT_BIT)) {
+            return;
+         }
+         break;
+
+      /* GL_EXT_stencil_two_side */
+      case GL_STENCIL_TEST_TWO_SIDE_EXT:
+         CHECK_EXTENSION(EXT_stencil_two_side, cap);
+         if (ctx->Stencil.TestTwoSide == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_STENCIL);
+         ctx->Stencil.TestTwoSide = state;
+         if (state) {
+            ctx->Stencil._BackFace = 2;
+            ctx->_TriangleCaps |= DD_TRI_TWOSTENCIL;
+         } else {
+            ctx->Stencil._BackFace = 1;
+            ctx->_TriangleCaps &= ~DD_TRI_TWOSTENCIL;
+         }
+         break;
+
+#if FEATURE_ARB_fragment_program
+      case GL_FRAGMENT_PROGRAM_ARB:
+         CHECK_EXTENSION(ARB_fragment_program, cap);
+         if (ctx->FragmentProgram.Enabled == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_PROGRAM);
+         ctx->FragmentProgram.Enabled = state;
+         break;
+#endif /* FEATURE_ARB_fragment_program */
+
+      /* GL_EXT_depth_bounds_test */
+      case GL_DEPTH_BOUNDS_TEST_EXT:
+         CHECK_EXTENSION(EXT_depth_bounds_test, cap);
+         if (ctx->Depth.BoundsTest == state)
+            return;
+         FLUSH_VERTICES(ctx, _NEW_DEPTH);
+         ctx->Depth.BoundsTest = state;
+         break;
+
+      case GL_DEPTH_CLAMP:
+         if (ctx->Transform.DepthClamp == state)
+            return;
+	 CHECK_EXTENSION(ARB_depth_clamp, cap);
+         FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
+	 ctx->Transform.DepthClamp = state;
+	 break;
+
+#if FEATURE_ATI_fragment_shader
+      case GL_FRAGMENT_SHADER_ATI:
+        CHECK_EXTENSION(ATI_fragment_shader, cap);
+	if (ctx->ATIFragmentShader.Enabled == state)
+	  return;
+	FLUSH_VERTICES(ctx, _NEW_PROGRAM);
+	ctx->ATIFragmentShader.Enabled = state;
+        break;
+#endif
+
+      /* GL_MESA_texture_array */
+      case GL_TEXTURE_1D_ARRAY_EXT:
+         CHECK_EXTENSION(MESA_texture_array, cap);
+         if (!enable_texture(ctx, state, TEXTURE_1D_ARRAY_BIT)) {
+            return;
+         }
+         break;
+
+      case GL_TEXTURE_2D_ARRAY_EXT:
+         CHECK_EXTENSION(MESA_texture_array, cap);
+         if (!enable_texture(ctx, state, TEXTURE_2D_ARRAY_BIT)) {
+            return;
+         }
+         break;
+
+      case GL_TEXTURE_CUBE_MAP_SEAMLESS:
+	 CHECK_EXTENSION(ARB_seamless_cube_map, cap);
+	 ctx->Texture.CubeMapSeamless = state;
+	 break;
+
+#if FEATURE_EXT_transform_feedback
+      case GL_RASTERIZER_DISCARD:
+	 CHECK_EXTENSION(EXT_transform_feedback, cap);
+         if (ctx->TransformFeedback.RasterDiscard != state) {
+            ctx->TransformFeedback.RasterDiscard = state;
+            FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
+         }
+         break;
+#endif
+
+      /* GL 3.1 primitive restart.  Note: this enum is different from
+       * GL_PRIMITIVE_RESTART_NV (which is client state).
+       */
+      case GL_PRIMITIVE_RESTART:
+         if (ctx->VersionMajor * 10 + ctx->VersionMinor < 31) {
+            goto invalid_enum_error;
+         }
+         if (ctx->Array.PrimitiveRestart != state) {
+            FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
+            ctx->Array.PrimitiveRestart = state;
+         }
+         break;
+
+      /* GL3.0 - GL_framebuffer_sRGB */
+      case GL_FRAMEBUFFER_SRGB_EXT:
+         CHECK_EXTENSION(EXT_framebuffer_sRGB, cap);
+         FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+         ctx->Color.sRGBEnabled = state;
+         break;
+
+      default:
+         goto invalid_enum_error;
+   }
+
+   if (ctx->Driver.Enable) {
+      ctx->Driver.Enable( ctx, cap, state );
+   }
+
+   return;
+
+invalid_enum_error:
+   _mesa_error(ctx, GL_INVALID_ENUM, "gl%s(0x%x)",
+               state ? "Enable" : "Disable", cap);
+}
+
+
+/**
+ * Enable GL capability.  Called by glEnable()
+ * \param cap  state to enable.
+ */
+void GLAPIENTRY
+_mesa_Enable( GLenum cap )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   _mesa_set_enable( ctx, cap, GL_TRUE );
+}
+
+
+/**
+ * Disable GL capability.  Called by glDisable()
+ * \param cap  state to disable.
+ */
+void GLAPIENTRY
+_mesa_Disable( GLenum cap )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   _mesa_set_enable( ctx, cap, GL_FALSE );
+}
+
+
+
+/**
+ * Enable/disable an indexed state var.
+ */
+void
+_mesa_set_enablei(struct gl_context *ctx, GLenum cap, GLuint index, GLboolean state)
+{
+   ASSERT(state == 0 || state == 1);
+   switch (cap) {
+   case GL_BLEND:
+      if (!ctx->Extensions.EXT_draw_buffers2) {
+         goto invalid_enum_error;
+      }
+      if (index >= ctx->Const.MaxDrawBuffers) {
+         _mesa_error(ctx, GL_INVALID_VALUE, "%s(index=%u)",
+                     state ? "glEnableIndexed" : "glDisableIndexed", index);
+         return;
+      }
+      if (((ctx->Color.BlendEnabled >> index) & 1) != state) {
+         FLUSH_VERTICES(ctx, _NEW_COLOR);
+         if (state)
+            ctx->Color.BlendEnabled |= (1 << index);
+         else
+            ctx->Color.BlendEnabled &= ~(1 << index);
+      }
+      break;
+   default:
+      goto invalid_enum_error;
+   }
+   return;
+
+invalid_enum_error:
+    _mesa_error(ctx, GL_INVALID_ENUM, "%s(cap=%s)",
+                state ? "glEnablei" : "glDisablei",
+                _mesa_lookup_enum_by_nr(cap));
+}
+
+
+void GLAPIENTRY
+_mesa_DisableIndexed( GLenum cap, GLuint index )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+   _mesa_set_enablei(ctx, cap, index, GL_FALSE);
+}
+
+
+void GLAPIENTRY
+_mesa_EnableIndexed( GLenum cap, GLuint index )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+   _mesa_set_enablei(ctx, cap, index, GL_TRUE);
+}
+
+
+GLboolean GLAPIENTRY
+_mesa_IsEnabledIndexed( GLenum cap, GLuint index )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   switch (cap) {
+   case GL_BLEND:
+      if (index >= ctx->Const.MaxDrawBuffers) {
+         _mesa_error(ctx, GL_INVALID_VALUE, "glIsEnabledIndexed(index=%u)",
+                     index);
+         return GL_FALSE;
+      }
+      return (ctx->Color.BlendEnabled >> index) & 1;
+   default:
+      _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabledIndexed(cap=%s)",
+                  _mesa_lookup_enum_by_nr(cap));
+      return GL_FALSE;
+   }
+}
+
+
+
+
+#undef CHECK_EXTENSION
+#define CHECK_EXTENSION(EXTNAME)			\
+   if (!ctx->Extensions.EXTNAME) {			\
+      goto invalid_enum_error;				\
+   }
+
+#undef CHECK_EXTENSION2
+#define CHECK_EXTENSION2(EXT1, EXT2)				\
+   if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) {	\
+      goto invalid_enum_error;					\
+   }
+
+
+/**
+ * Helper function to determine whether a texture target is enabled.
+ */
+static GLboolean
+is_texture_enabled(struct gl_context *ctx, GLbitfield bit)
+{
+   const struct gl_texture_unit *const texUnit =
+       &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+   return (texUnit->Enabled & bit) ? GL_TRUE : GL_FALSE;
+}
+
+
+/**
+ * Return simple enable/disable state.
+ *
+ * \param cap  state variable to query.
+ *
+ * Returns the state of the specified capability from the current GL context.
+ * For the capabilities associated with extensions verifies that those
+ * extensions are effectively present before reporting.
+ */
+GLboolean GLAPIENTRY
+_mesa_IsEnabled( GLenum cap )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   switch (cap) {
+      case GL_ALPHA_TEST:
+         return ctx->Color.AlphaEnabled;
+      case GL_AUTO_NORMAL:
+	 return ctx->Eval.AutoNormal;
+      case GL_BLEND:
+         return ctx->Color.BlendEnabled & 1;  /* return state for buffer[0] */
+      case GL_CLIP_PLANE0:
+      case GL_CLIP_PLANE1:
+      case GL_CLIP_PLANE2:
+      case GL_CLIP_PLANE3:
+      case GL_CLIP_PLANE4:
+      case GL_CLIP_PLANE5:
+	 return (ctx->Transform.ClipPlanesEnabled >> (cap - GL_CLIP_PLANE0)) & 1;
+      case GL_COLOR_MATERIAL:
+	 return ctx->Light.ColorMaterialEnabled;
+      case GL_CULL_FACE:
+         return ctx->Polygon.CullFlag;
+      case GL_DEPTH_TEST:
+         return ctx->Depth.Test;
+      case GL_DITHER:
+	 return ctx->Color.DitherFlag;
+      case GL_FOG:
+	 return ctx->Fog.Enabled;
+      case GL_LIGHTING:
+         return ctx->Light.Enabled;
+      case GL_LIGHT0:
+      case GL_LIGHT1:
+      case GL_LIGHT2:
+      case GL_LIGHT3:
+      case GL_LIGHT4:
+      case GL_LIGHT5:
+      case GL_LIGHT6:
+      case GL_LIGHT7:
+         return ctx->Light.Light[cap-GL_LIGHT0].Enabled;
+      case GL_LINE_SMOOTH:
+	 return ctx->Line.SmoothFlag;
+      case GL_LINE_STIPPLE:
+	 return ctx->Line.StippleFlag;
+      case GL_INDEX_LOGIC_OP:
+	 return ctx->Color.IndexLogicOpEnabled;
+      case GL_COLOR_LOGIC_OP:
+	 return ctx->Color.ColorLogicOpEnabled;
+      case GL_MAP1_COLOR_4:
+	 return ctx->Eval.Map1Color4;
+      case GL_MAP1_INDEX:
+	 return ctx->Eval.Map1Index;
+      case GL_MAP1_NORMAL:
+	 return ctx->Eval.Map1Normal;
+      case GL_MAP1_TEXTURE_COORD_1:
+	 return ctx->Eval.Map1TextureCoord1;
+      case GL_MAP1_TEXTURE_COORD_2:
+	 return ctx->Eval.Map1TextureCoord2;
+      case GL_MAP1_TEXTURE_COORD_3:
+	 return ctx->Eval.Map1TextureCoord3;
+      case GL_MAP1_TEXTURE_COORD_4:
+	 return ctx->Eval.Map1TextureCoord4;
+      case GL_MAP1_VERTEX_3:
+	 return ctx->Eval.Map1Vertex3;
+      case GL_MAP1_VERTEX_4:
+	 return ctx->Eval.Map1Vertex4;
+      case GL_MAP2_COLOR_4:
+	 return ctx->Eval.Map2Color4;
+      case GL_MAP2_INDEX:
+	 return ctx->Eval.Map2Index;
+      case GL_MAP2_NORMAL:
+	 return ctx->Eval.Map2Normal;
+      case GL_MAP2_TEXTURE_COORD_1:
+	 return ctx->Eval.Map2TextureCoord1;
+      case GL_MAP2_TEXTURE_COORD_2:
+	 return ctx->Eval.Map2TextureCoord2;
+      case GL_MAP2_TEXTURE_COORD_3:
+	 return ctx->Eval.Map2TextureCoord3;
+      case GL_MAP2_TEXTURE_COORD_4:
+	 return ctx->Eval.Map2TextureCoord4;
+      case GL_MAP2_VERTEX_3:
+	 return ctx->Eval.Map2Vertex3;
+      case GL_MAP2_VERTEX_4:
+	 return ctx->Eval.Map2Vertex4;
+      case GL_NORMALIZE:
+	 return ctx->Transform.Normalize;
+      case GL_POINT_SMOOTH:
+	 return ctx->Point.SmoothFlag;
+      case GL_POLYGON_SMOOTH:
+	 return ctx->Polygon.SmoothFlag;
+      case GL_POLYGON_STIPPLE:
+	 return ctx->Polygon.StippleFlag;
+      case GL_POLYGON_OFFSET_POINT:
+	 return ctx->Polygon.OffsetPoint;
+      case GL_POLYGON_OFFSET_LINE:
+	 return ctx->Polygon.OffsetLine;
+      case GL_POLYGON_OFFSET_FILL:
+      /*case GL_POLYGON_OFFSET_EXT:*/
+	 return ctx->Polygon.OffsetFill;
+      case GL_RESCALE_NORMAL_EXT:
+         return ctx->Transform.RescaleNormals;
+      case GL_SCISSOR_TEST:
+	 return ctx->Scissor.Enabled;
+      case GL_SHARED_TEXTURE_PALETTE_EXT:
+         return ctx->Texture.SharedPalette;
+      case GL_STENCIL_TEST:
+	 return ctx->Stencil.Enabled;
+      case GL_TEXTURE_1D:
+         return is_texture_enabled(ctx, TEXTURE_1D_BIT);
+      case GL_TEXTURE_2D:
+         return is_texture_enabled(ctx, TEXTURE_2D_BIT);
+      case GL_TEXTURE_3D:
+         return is_texture_enabled(ctx, TEXTURE_3D_BIT);
+      case GL_TEXTURE_GEN_Q:
+         {
+            const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+            if (texUnit) {
+               return (texUnit->TexGenEnabled & Q_BIT) ? GL_TRUE : GL_FALSE;
+            }
+         }
+         return GL_FALSE;
+      case GL_TEXTURE_GEN_R:
+         {
+            const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+            if (texUnit) {
+               return (texUnit->TexGenEnabled & R_BIT) ? GL_TRUE : GL_FALSE;
+            }
+         }
+         return GL_FALSE;
+      case GL_TEXTURE_GEN_S:
+         {
+            const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+            if (texUnit) {
+               return (texUnit->TexGenEnabled & S_BIT) ? GL_TRUE : GL_FALSE;
+            }
+         }
+         return GL_FALSE;
+      case GL_TEXTURE_GEN_T:
+         {
+            const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+            if (texUnit) {
+               return (texUnit->TexGenEnabled & T_BIT) ? GL_TRUE : GL_FALSE;
+            }
+         }
+         return GL_FALSE;
+#if FEATURE_ES1
+      case GL_TEXTURE_GEN_STR_OES:
+	 {
+            const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
+            if (texUnit) {
+		    return (texUnit->TexGenEnabled & STR_BITS) == STR_BITS ? GL_TRUE : GL_FALSE;
+            }
+         }
+#endif
+
+      /*
+       * CLIENT STATE!!!
+       */
+      case GL_VERTEX_ARRAY:
+         return (ctx->Array.ArrayObj->Vertex.Enabled != 0);
+      case GL_NORMAL_ARRAY:
+         return (ctx->Array.ArrayObj->Normal.Enabled != 0);
+      case GL_COLOR_ARRAY:
+         return (ctx->Array.ArrayObj->Color.Enabled != 0);
+      case GL_INDEX_ARRAY:
+         return (ctx->Array.ArrayObj->Index.Enabled != 0);
+      case GL_TEXTURE_COORD_ARRAY:
+         return (ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture].Enabled != 0);
+      case GL_EDGE_FLAG_ARRAY:
+         return (ctx->Array.ArrayObj->EdgeFlag.Enabled != 0);
+      case GL_FOG_COORDINATE_ARRAY_EXT:
+         CHECK_EXTENSION(EXT_fog_coord);
+         return (ctx->Array.ArrayObj->FogCoord.Enabled != 0);
+      case GL_SECONDARY_COLOR_ARRAY_EXT:
+         CHECK_EXTENSION(EXT_secondary_color);
+         return (ctx->Array.ArrayObj->SecondaryColor.Enabled != 0);
+#if FEATURE_point_size_array
+      case GL_POINT_SIZE_ARRAY_OES:
+         return (ctx->Array.ArrayObj->PointSize.Enabled != 0);
+#endif
+
+      /* GL_SGI_texture_color_table */
+      case GL_TEXTURE_COLOR_TABLE_SGI:
+         CHECK_EXTENSION(SGI_texture_color_table);
+         return ctx->Texture.Unit[ctx->Texture.CurrentUnit].ColorTableEnabled;
+
+      /* GL_ARB_texture_cube_map */
+      case GL_TEXTURE_CUBE_MAP_ARB:
+         CHECK_EXTENSION(ARB_texture_cube_map);
+         return is_texture_enabled(ctx, TEXTURE_CUBE_BIT);
+
+      /* GL_EXT_secondary_color */
+      case GL_COLOR_SUM_EXT:
+         CHECK_EXTENSION2(EXT_secondary_color, ARB_vertex_program);
+         return ctx->Fog.ColorSumEnabled;
+
+      /* GL_ARB_multisample */
+      case GL_MULTISAMPLE_ARB:
+         return ctx->Multisample.Enabled;
+      case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB:
+         return ctx->Multisample.SampleAlphaToCoverage;
+      case GL_SAMPLE_ALPHA_TO_ONE_ARB:
+         return ctx->Multisample.SampleAlphaToOne;
+      case GL_SAMPLE_COVERAGE_ARB:
+         return ctx->Multisample.SampleCoverage;
+      case GL_SAMPLE_COVERAGE_INVERT_ARB:
+         return ctx->Multisample.SampleCoverageInvert;
+
+      /* GL_IBM_rasterpos_clip */
+      case GL_RASTER_POSITION_UNCLIPPED_IBM:
+         CHECK_EXTENSION(IBM_rasterpos_clip);
+         return ctx->Transform.RasterPositionUnclipped;
+
+      /* GL_NV_point_sprite */
+      case GL_POINT_SPRITE_NV:
+         CHECK_EXTENSION2(NV_point_sprite, ARB_point_sprite)
+         return ctx->Point.PointSprite;
+
+#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
+      case GL_VERTEX_PROGRAM_ARB:
+         CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program);
+         return ctx->VertexProgram.Enabled;
+      case GL_VERTEX_PROGRAM_POINT_SIZE_ARB:
+         CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program);
+         return ctx->VertexProgram.PointSizeEnabled;
+      case GL_VERTEX_PROGRAM_TWO_SIDE_ARB:
+         CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program);
+         return ctx->VertexProgram.TwoSideEnabled;
+#endif
+#if FEATURE_NV_vertex_program
+      case GL_VERTEX_ATTRIB_ARRAY0_NV:
+      case GL_VERTEX_ATTRIB_ARRAY1_NV:
+      case GL_VERTEX_ATTRIB_ARRAY2_NV:
+      case GL_VERTEX_ATTRIB_ARRAY3_NV:
+      case GL_VERTEX_ATTRIB_ARRAY4_NV:
+      case GL_VERTEX_ATTRIB_ARRAY5_NV:
+      case GL_VERTEX_ATTRIB_ARRAY6_NV:
+      case GL_VERTEX_ATTRIB_ARRAY7_NV:
+      case GL_VERTEX_ATTRIB_ARRAY8_NV:
+      case GL_VERTEX_ATTRIB_ARRAY9_NV:
+      case GL_VERTEX_ATTRIB_ARRAY10_NV:
+      case GL_VERTEX_ATTRIB_ARRAY11_NV:
+      case GL_VERTEX_ATTRIB_ARRAY12_NV:
+      case GL_VERTEX_ATTRIB_ARRAY13_NV:
+      case GL_VERTEX_ATTRIB_ARRAY14_NV:
+      case GL_VERTEX_ATTRIB_ARRAY15_NV:
+         CHECK_EXTENSION(NV_vertex_program);
+         {
+            GLint n = (GLint) cap - GL_VERTEX_ATTRIB_ARRAY0_NV;
+            ASSERT(n < Elements(ctx->Array.ArrayObj->VertexAttrib));
+            return (ctx->Array.ArrayObj->VertexAttrib[n].Enabled != 0);
+         }
+      case GL_MAP1_VERTEX_ATTRIB0_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB1_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB2_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB3_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB4_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB5_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB6_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB7_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB8_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB9_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB10_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB11_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB12_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB13_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB14_4_NV:
+      case GL_MAP1_VERTEX_ATTRIB15_4_NV:
+         CHECK_EXTENSION(NV_vertex_program);
+         {
+            const GLuint map = (GLuint) (cap - GL_MAP1_VERTEX_ATTRIB0_4_NV);
+            return ctx->Eval.Map1Attrib[map];
+         }
+      case GL_MAP2_VERTEX_ATTRIB0_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB1_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB2_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB3_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB4_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB5_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB6_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB7_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB8_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB9_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB10_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB11_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB12_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB13_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB14_4_NV:
+      case GL_MAP2_VERTEX_ATTRIB15_4_NV:
+         CHECK_EXTENSION(NV_vertex_program);
+         {
+            const GLuint map = (GLuint) (cap - GL_MAP2_VERTEX_ATTRIB0_4_NV);
+            return ctx->Eval.Map2Attrib[map];
+         }
+#endif /* FEATURE_NV_vertex_program */
+
+#if FEATURE_NV_fragment_program
+      case GL_FRAGMENT_PROGRAM_NV:
+         CHECK_EXTENSION(NV_fragment_program);
+         return ctx->FragmentProgram.Enabled;
+#endif /* FEATURE_NV_fragment_program */
+
+      /* GL_NV_texture_rectangle */
+      case GL_TEXTURE_RECTANGLE_NV:
+         CHECK_EXTENSION(NV_texture_rectangle);
+         return is_texture_enabled(ctx, TEXTURE_RECT_BIT);
+
+      /* GL_EXT_stencil_two_side */
+      case GL_STENCIL_TEST_TWO_SIDE_EXT:
+         CHECK_EXTENSION(EXT_stencil_two_side);
+         return ctx->Stencil.TestTwoSide;
+
+#if FEATURE_ARB_fragment_program
+      case GL_FRAGMENT_PROGRAM_ARB:
+         return ctx->FragmentProgram.Enabled;
+#endif /* FEATURE_ARB_fragment_program */
+
+      /* GL_EXT_depth_bounds_test */
+      case GL_DEPTH_BOUNDS_TEST_EXT:
+         CHECK_EXTENSION(EXT_depth_bounds_test);
+         return ctx->Depth.BoundsTest;
+
+      /* GL_ARB_depth_clamp */
+      case GL_DEPTH_CLAMP:
+         CHECK_EXTENSION(ARB_depth_clamp);
+         return ctx->Transform.DepthClamp;
+
+#if FEATURE_ATI_fragment_shader
+      case GL_FRAGMENT_SHADER_ATI:
+	 CHECK_EXTENSION(ATI_fragment_shader);
+	 return ctx->ATIFragmentShader.Enabled;
+#endif /* FEATURE_ATI_fragment_shader */
+
+      case GL_TEXTURE_CUBE_MAP_SEAMLESS:
+	 CHECK_EXTENSION(ARB_seamless_cube_map);
+	 return ctx->Texture.CubeMapSeamless;
+
+#if FEATURE_EXT_transform_feedback
+      case GL_RASTERIZER_DISCARD:
+	 CHECK_EXTENSION(EXT_transform_feedback);
+         return ctx->TransformFeedback.RasterDiscard;
+#endif
+
+      /* GL_NV_primitive_restart */
+      case GL_PRIMITIVE_RESTART_NV:
+	 if (!ctx->Extensions.NV_primitive_restart) {
+            goto invalid_enum_error;
+         }
+         return ctx->Array.PrimitiveRestart;
+
+      /* GL 3.1 primitive restart */
+      case GL_PRIMITIVE_RESTART:
+         if (ctx->VersionMajor * 10 + ctx->VersionMinor < 31) {
+            goto invalid_enum_error;
+         }
+         return ctx->Array.PrimitiveRestart;
+
+      /* GL3.0 - GL_framebuffer_sRGB */
+      case GL_FRAMEBUFFER_SRGB_EXT:
+	 CHECK_EXTENSION(EXT_framebuffer_sRGB);
+	 return ctx->Color.sRGBEnabled;
+
+      default:
+         goto invalid_enum_error;
+   }
+
+   return GL_FALSE;
+
+invalid_enum_error:
+   _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled(0x%x)", (int) cap);
+   return GL_FALSE;
+}
diff --git a/mesalib/src/mesa/main/fbobject.c b/mesalib/src/mesa/main/fbobject.c
index f20689b82..97cbd3c61 100644
--- a/mesalib/src/mesa/main/fbobject.c
+++ b/mesalib/src/mesa/main/fbobject.c
@@ -1,2487 +1,2487 @@
-/*

- * Mesa 3-D graphics library

- * Version:  7.1

- *

- * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.

- * Copyright (C) 1999-2009  VMware, Inc.  All Rights Reserved.

- *

- * Permission is hereby granted, free of charge, to any person obtaining a

- * copy of this software and associated documentation files (the "Software"),

- * to deal in the Software without restriction, including without limitation

- * the rights to use, copy, modify, merge, publish, distribute, sublicense,

- * and/or sell copies of the Software, and to permit persons to whom the

- * Software is furnished to do so, subject to the following conditions:

- *

- * The above copyright notice and this permission notice shall be included

- * in all copies or substantial portions of the Software.

- *

- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

- */

-

-

-/*

- * GL_EXT/ARB_framebuffer_object extensions

- *

- * Authors:

- *   Brian Paul

- */

-

-

-#include "buffers.h"

-#include "context.h"

-#include "enums.h"

-#include "fbobject.h"

-#include "formats.h"

-#include "framebuffer.h"

-#include "hash.h"

-#include "macros.h"

-#include "mfeatures.h"

-#include "mtypes.h"

-#include "renderbuffer.h"

-#include "state.h"

-#include "teximage.h"

-#include "texobj.h"

-

-

-/** Set this to 1 to help debug FBO incompleteness problems */

-#define DEBUG_FBO 0

-

-/** Set this to 1 to debug/log glBlitFramebuffer() calls */

-#define DEBUG_BLIT 0

-

-

-/**

- * Notes:

- *

- * None of the GL_EXT_framebuffer_object functions are compiled into

- * display lists.

- */

-

-

-

-/*

- * When glGenRender/FramebuffersEXT() is called we insert pointers to

- * these placeholder objects into the hash table.

- * Later, when the object ID is first bound, we replace the placeholder

- * with the real frame/renderbuffer.

- */

-static struct gl_framebuffer DummyFramebuffer;

-static struct gl_renderbuffer DummyRenderbuffer;

-

-/* We bind this framebuffer when applications pass a NULL

- * drawable/surface in make current. */

-static struct gl_framebuffer IncompleteFramebuffer;

-

-

-#define IS_CUBE_FACE(TARGET) \

-   ((TARGET) >= GL_TEXTURE_CUBE_MAP_POSITIVE_X && \

-    (TARGET) <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z)

-

-

-static void

-delete_dummy_renderbuffer(struct gl_renderbuffer *rb)

-{

-   /* no op */

-}

-

-static void

-delete_dummy_framebuffer(struct gl_framebuffer *fb)

-{

-   /* no op */

-}

-

-

-void

-_mesa_init_fbobjects(struct gl_context *ctx)

-{

-   _glthread_INIT_MUTEX(DummyFramebuffer.Mutex);

-   _glthread_INIT_MUTEX(DummyRenderbuffer.Mutex);

-   _glthread_INIT_MUTEX(IncompleteFramebuffer.Mutex);

-   DummyFramebuffer.Delete = delete_dummy_framebuffer;

-   DummyRenderbuffer.Delete = delete_dummy_renderbuffer;

-   IncompleteFramebuffer.Delete = delete_dummy_framebuffer;

-}

-

-struct gl_framebuffer *

-_mesa_get_incomplete_framebuffer(void)

-{

-   return &IncompleteFramebuffer;

-}

-

-/**

- * Helper routine for getting a gl_renderbuffer.

- */

-struct gl_renderbuffer *

-_mesa_lookup_renderbuffer(struct gl_context *ctx, GLuint id)

-{

-   struct gl_renderbuffer *rb;

-

-   if (id == 0)

-      return NULL;

-

-   rb = (struct gl_renderbuffer *)

-      _mesa_HashLookup(ctx->Shared->RenderBuffers, id);

-   return rb;

-}

-

-

-/**

- * Helper routine for getting a gl_framebuffer.

- */

-struct gl_framebuffer *

-_mesa_lookup_framebuffer(struct gl_context *ctx, GLuint id)

-{

-   struct gl_framebuffer *fb;

-

-   if (id == 0)

-      return NULL;

-

-   fb = (struct gl_framebuffer *)

-      _mesa_HashLookup(ctx->Shared->FrameBuffers, id);

-   return fb;

-}

-

-

-/**

- * Mark the given framebuffer as invalid.  This will force the

- * test for framebuffer completeness to be done before the framebuffer

- * is used.

- */

-static void

-invalidate_framebuffer(struct gl_framebuffer *fb)

-{

-   fb->_Status = 0; /* "indeterminate" */

-}

-

-

-/**

- * Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding

- * gl_renderbuffer_attachment object.

- * This function is only used for user-created FB objects, not the

- * default / window-system FB object.

- * If \p attachment is GL_DEPTH_STENCIL_ATTACHMENT, return a pointer to

- * the depth buffer attachment point.

- */

-struct gl_renderbuffer_attachment *

-_mesa_get_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,

-                     GLenum attachment)

-{

-   GLuint i;

-

-   assert(fb->Name > 0);

-

-   switch (attachment) {

-   case GL_COLOR_ATTACHMENT0_EXT:

-   case GL_COLOR_ATTACHMENT1_EXT:

-   case GL_COLOR_ATTACHMENT2_EXT:

-   case GL_COLOR_ATTACHMENT3_EXT:

-   case GL_COLOR_ATTACHMENT4_EXT:

-   case GL_COLOR_ATTACHMENT5_EXT:

-   case GL_COLOR_ATTACHMENT6_EXT:

-   case GL_COLOR_ATTACHMENT7_EXT:

-   case GL_COLOR_ATTACHMENT8_EXT:

-   case GL_COLOR_ATTACHMENT9_EXT:

-   case GL_COLOR_ATTACHMENT10_EXT:

-   case GL_COLOR_ATTACHMENT11_EXT:

-   case GL_COLOR_ATTACHMENT12_EXT:

-   case GL_COLOR_ATTACHMENT13_EXT:

-   case GL_COLOR_ATTACHMENT14_EXT:

-   case GL_COLOR_ATTACHMENT15_EXT:

-      i = attachment - GL_COLOR_ATTACHMENT0_EXT;

-      if (i >= ctx->Const.MaxColorAttachments) {

-	 return NULL;

-      }

-      return &fb->Attachment[BUFFER_COLOR0 + i];

-   case GL_DEPTH_STENCIL_ATTACHMENT:

-      /* fall-through */

-   case GL_DEPTH_BUFFER:

-      /* fall-through / new in GL 3.0 */

-   case GL_DEPTH_ATTACHMENT_EXT:

-      return &fb->Attachment[BUFFER_DEPTH];

-   case GL_STENCIL_BUFFER:

-      /* fall-through / new in GL 3.0 */

-   case GL_STENCIL_ATTACHMENT_EXT:

-      return &fb->Attachment[BUFFER_STENCIL];

-   default:

-      return NULL;

-   }

-}

-

-

-/**

- * As above, but only used for getting attachments of the default /

- * window-system framebuffer (not user-created framebuffer objects).

- */

-static struct gl_renderbuffer_attachment *

-_mesa_get_fb0_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,

-                         GLenum attachment)

-{

-   assert(fb->Name == 0);

-

-   switch (attachment) {

-   case GL_FRONT_LEFT:

-      return &fb->Attachment[BUFFER_FRONT_LEFT];

-   case GL_FRONT_RIGHT:

-      return &fb->Attachment[BUFFER_FRONT_RIGHT];

-   case GL_BACK_LEFT:

-      return &fb->Attachment[BUFFER_BACK_LEFT];

-   case GL_BACK_RIGHT:

-      return &fb->Attachment[BUFFER_BACK_RIGHT];

-   case GL_AUX0:

-      if (fb->Visual.numAuxBuffers == 1) {

-         return &fb->Attachment[BUFFER_AUX0];

-      }

-      return NULL;

-   case GL_DEPTH_BUFFER:

-      /* fall-through / new in GL 3.0 */

-   case GL_DEPTH_ATTACHMENT_EXT:

-      return &fb->Attachment[BUFFER_DEPTH];

-   case GL_STENCIL_BUFFER:

-      /* fall-through / new in GL 3.0 */

-   case GL_STENCIL_ATTACHMENT_EXT:

-      return &fb->Attachment[BUFFER_STENCIL];

-   default:

-      return NULL;

-   }

-}

-

-

-

-/**

- * Remove any texture or renderbuffer attached to the given attachment

- * point.  Update reference counts, etc.

- */

-void

-_mesa_remove_attachment(struct gl_context *ctx,

-                        struct gl_renderbuffer_attachment *att)

-{

-   if (att->Type == GL_TEXTURE) {

-      ASSERT(att->Texture);

-      if (ctx->Driver.FinishRenderTexture) {

-         /* tell driver that we're done rendering to this texture. */

-         ctx->Driver.FinishRenderTexture(ctx, att);

-      }

-      _mesa_reference_texobj(&att->Texture, NULL); /* unbind */

-      ASSERT(!att->Texture);

-   }

-   if (att->Type == GL_TEXTURE || att->Type == GL_RENDERBUFFER_EXT) {

-      ASSERT(!att->Texture);

-      _mesa_reference_renderbuffer(&att->Renderbuffer, NULL); /* unbind */

-      ASSERT(!att->Renderbuffer);

-   }

-   att->Type = GL_NONE;

-   att->Complete = GL_TRUE;

-}

-

-

-/**

- * Bind a texture object to an attachment point.

- * The previous binding, if any, will be removed first.

- */

-void

-_mesa_set_texture_attachment(struct gl_context *ctx,

-                             struct gl_framebuffer *fb,

-                             struct gl_renderbuffer_attachment *att,

-                             struct gl_texture_object *texObj,

-                             GLenum texTarget, GLuint level, GLuint zoffset)

-{

-   if (att->Texture == texObj) {

-      /* re-attaching same texture */

-      ASSERT(att->Type == GL_TEXTURE);

-      if (ctx->Driver.FinishRenderTexture)

-	 ctx->Driver.FinishRenderTexture(ctx, att);

-   }

-   else {

-      /* new attachment */

-      if (ctx->Driver.FinishRenderTexture && att->Texture)

-	 ctx->Driver.FinishRenderTexture(ctx, att);

-      _mesa_remove_attachment(ctx, att);

-      att->Type = GL_TEXTURE;

-      assert(!att->Texture);

-      _mesa_reference_texobj(&att->Texture, texObj);

-   }

-

-   /* always update these fields */

-   att->TextureLevel = level;

-   att->CubeMapFace = _mesa_tex_target_to_face(texTarget);

-   att->Zoffset = zoffset;

-   att->Complete = GL_FALSE;

-

-   if (att->Texture->Image[att->CubeMapFace][att->TextureLevel]) {

-      ctx->Driver.RenderTexture(ctx, fb, att);

-   }

-

-   invalidate_framebuffer(fb);

-}

-

-

-/**

- * Bind a renderbuffer to an attachment point.

- * The previous binding, if any, will be removed first.

- */

-void

-_mesa_set_renderbuffer_attachment(struct gl_context *ctx,

-                                  struct gl_renderbuffer_attachment *att,

-                                  struct gl_renderbuffer *rb)

-{

-   /* XXX check if re-doing same attachment, exit early */

-   _mesa_remove_attachment(ctx, att);

-   att->Type = GL_RENDERBUFFER_EXT;

-   att->Texture = NULL; /* just to be safe */

-   att->Complete = GL_FALSE;

-   _mesa_reference_renderbuffer(&att->Renderbuffer, rb);

-}

-

-

-/**

- * Fallback for ctx->Driver.FramebufferRenderbuffer()

- * Attach a renderbuffer object to a framebuffer object.

- */

-void

-_mesa_framebuffer_renderbuffer(struct gl_context *ctx,

-                               struct gl_framebuffer *fb,

-                               GLenum attachment, struct gl_renderbuffer *rb)

-{

-   struct gl_renderbuffer_attachment *att;

-

-   _glthread_LOCK_MUTEX(fb->Mutex);

-

-   att = _mesa_get_attachment(ctx, fb, attachment);

-   ASSERT(att);

-   if (rb) {

-      _mesa_set_renderbuffer_attachment(ctx, att, rb);

-      if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {

-         /* do stencil attachment here (depth already done above) */

-         att = _mesa_get_attachment(ctx, fb, GL_STENCIL_ATTACHMENT_EXT);

-         assert(att);

-         _mesa_set_renderbuffer_attachment(ctx, att, rb);

-      }

-   }

-   else {

-      _mesa_remove_attachment(ctx, att);

-   }

-

-   invalidate_framebuffer(fb);

-

-   _glthread_UNLOCK_MUTEX(fb->Mutex);

-}

-

-

-/**

- * Fallback for ctx->Driver.ValidateFramebuffer()

- * Check if the renderbuffer's formats are supported by the software

- * renderer.

- * Drivers should probably override this.

- */

-void

-_mesa_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb)

-{

-   gl_buffer_index buf;

-   for (buf = 0; buf < BUFFER_COUNT; buf++) {

-      const struct gl_renderbuffer *rb = fb->Attachment[buf].Renderbuffer;

-      if (rb) {

-         switch (rb->_BaseFormat) {

-         case GL_ALPHA:

-         case GL_LUMINANCE_ALPHA:

-         case GL_LUMINANCE:

-         case GL_INTENSITY:

-         case GL_RED:

-         case GL_RG:

-            fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED;

-            return;

-         default:

-            /* render buffer format is supported by software rendering */

-            ;

-         }

-      }

-   }

-}

-

-

-/**

- * For debug only.

- */

-static void

-att_incomplete(const char *msg)

-{

-#if DEBUG_FBO

-   _mesa_debug(NULL, "attachment incomplete: %s\n", msg);

-#else

-   (void) msg;

-#endif

-}

-

-

-/**

- * For debug only.

- */

-static void

-fbo_incomplete(const char *msg, int index)

-{

-#if DEBUG_FBO

-   _mesa_debug(NULL, "FBO Incomplete: %s [%d]\n", msg, index);

-#else

-   (void) msg;

-   (void) index;

-#endif

-}

-

-

-/**

- * Is the given base format a legal format for a color renderbuffer?

- */

-GLboolean

-_mesa_is_legal_color_format(const struct gl_context *ctx, GLenum baseFormat)

-{

-   switch (baseFormat) {

-   case GL_RGB:

-   case GL_RGBA:

-      return GL_TRUE;

-   case GL_LUMINANCE:

-   case GL_LUMINANCE_ALPHA:

-   case GL_INTENSITY:

-   case GL_ALPHA:

-      return ctx->Extensions.ARB_framebuffer_object;

-   case GL_RED:

-   case GL_RG:

-      return ctx->Extensions.ARB_texture_rg;

-   default:

-      return GL_FALSE;

-   }

-}

-

-

-/**

- * Is the given base format a legal format for a depth/stencil renderbuffer?

- */

-static GLboolean

-is_legal_depth_format(const struct gl_context *ctx, GLenum baseFormat)

-{

-   switch (baseFormat) {

-   case GL_DEPTH_COMPONENT:

-   case GL_DEPTH_STENCIL_EXT:

-      return GL_TRUE;

-   default:

-      return GL_FALSE;

-   }

-}

-

-

-/**

- * Test if an attachment point is complete and update its Complete field.

- * \param format if GL_COLOR, this is a color attachment point,

- *               if GL_DEPTH, this is a depth component attachment point,

- *               if GL_STENCIL, this is a stencil component attachment point.

- */

-static void

-test_attachment_completeness(const struct gl_context *ctx, GLenum format,

-                             struct gl_renderbuffer_attachment *att)

-{

-   assert(format == GL_COLOR || format == GL_DEPTH || format == GL_STENCIL);

-

-   /* assume complete */

-   att->Complete = GL_TRUE;

-

-   /* Look for reasons why the attachment might be incomplete */

-   if (att->Type == GL_TEXTURE) {

-      const struct gl_texture_object *texObj = att->Texture;

-      struct gl_texture_image *texImage;

-      GLenum baseFormat;

-

-      if (!texObj) {

-         att_incomplete("no texobj");

-         att->Complete = GL_FALSE;

-         return;

-      }

-

-      texImage = texObj->Image[att->CubeMapFace][att->TextureLevel];

-      if (!texImage) {

-         att_incomplete("no teximage");

-         att->Complete = GL_FALSE;

-         return;

-      }

-      if (texImage->Width < 1 || texImage->Height < 1) {

-         att_incomplete("teximage width/height=0");

-         printf("texobj = %u\n", texObj->Name);

-         printf("level = %d\n", att->TextureLevel);

-         att->Complete = GL_FALSE;

-         return;

-      }

-      if (texObj->Target == GL_TEXTURE_3D && att->Zoffset >= texImage->Depth) {

-         att_incomplete("bad z offset");

-         att->Complete = GL_FALSE;

-         return;

-      }

-

-      baseFormat = _mesa_get_format_base_format(texImage->TexFormat);

-

-      if (format == GL_COLOR) {

-         if (!_mesa_is_legal_color_format(ctx, baseFormat)) {

-            att_incomplete("bad format");

-            att->Complete = GL_FALSE;

-            return;

-         }

-         if (_mesa_is_format_compressed(texImage->TexFormat)) {

-            att_incomplete("compressed internalformat");

-            att->Complete = GL_FALSE;

-            return;

-         }

-      }

-      else if (format == GL_DEPTH) {

-         if (baseFormat == GL_DEPTH_COMPONENT) {

-            /* OK */

-         }

-         else if (ctx->Extensions.EXT_packed_depth_stencil &&

-                  ctx->Extensions.ARB_depth_texture &&

-                  baseFormat == GL_DEPTH_STENCIL_EXT) {

-            /* OK */

-         }

-         else {

-            att->Complete = GL_FALSE;

-            att_incomplete("bad depth format");

-            return;

-         }

-      }

-      else {

-         ASSERT(format == GL_STENCIL);

-         if (ctx->Extensions.EXT_packed_depth_stencil &&

-             ctx->Extensions.ARB_depth_texture &&

-             baseFormat == GL_DEPTH_STENCIL_EXT) {

-            /* OK */

-         }

-         else {

-            /* no such thing as stencil-only textures */

-            att_incomplete("illegal stencil texture");

-            att->Complete = GL_FALSE;

-            return;

-         }

-      }

-   }

-   else if (att->Type == GL_RENDERBUFFER_EXT) {

-      const GLenum baseFormat =

-         _mesa_get_format_base_format(att->Renderbuffer->Format);

-

-      ASSERT(att->Renderbuffer);

-      if (!att->Renderbuffer->InternalFormat ||

-          att->Renderbuffer->Width < 1 ||

-          att->Renderbuffer->Height < 1) {

-         att_incomplete("0x0 renderbuffer");

-         att->Complete = GL_FALSE;

-         return;

-      }

-      if (format == GL_COLOR) {

-         if (!_mesa_is_legal_color_format(ctx, baseFormat)) {

-            att_incomplete("bad renderbuffer color format");

-            att->Complete = GL_FALSE;

-            return;

-         }

-      }

-      else if (format == GL_DEPTH) {

-         if (baseFormat == GL_DEPTH_COMPONENT) {

-            /* OK */

-         }

-         else if (ctx->Extensions.EXT_packed_depth_stencil &&

-                  baseFormat == GL_DEPTH_STENCIL_EXT) {

-            /* OK */

-         }

-         else {

-            att_incomplete("bad renderbuffer depth format");

-            att->Complete = GL_FALSE;

-            return;

-         }

-      }

-      else {

-         assert(format == GL_STENCIL);

-         if (baseFormat == GL_STENCIL_INDEX) {

-            /* OK */

-         }

-         else if (ctx->Extensions.EXT_packed_depth_stencil &&

-                  baseFormat == GL_DEPTH_STENCIL_EXT) {

-            /* OK */

-         }

-         else {

-            att->Complete = GL_FALSE;

-            att_incomplete("bad renderbuffer stencil format");

-            return;

-         }

-      }

-   }

-   else {

-      ASSERT(att->Type == GL_NONE);

-      /* complete */

-      return;

-   }

-}

-

-

-/**

- * Test if the given framebuffer object is complete and update its

- * Status field with the results.

- * Calls the ctx->Driver.ValidateFramebuffer() function to allow the

- * driver to make hardware-specific validation/completeness checks.

- * Also update the framebuffer's Width and Height fields if the

- * framebuffer is complete.

- */

-void

-_mesa_test_framebuffer_completeness(struct gl_context *ctx,

-                                    struct gl_framebuffer *fb)

-{

-   GLuint numImages;

-   GLenum intFormat = GL_NONE; /* color buffers' internal format */

-   GLuint minWidth = ~0, minHeight = ~0, maxWidth = 0, maxHeight = 0;

-   GLint numSamples = -1;

-   GLint i;

-   GLuint j;

-

-   assert(fb->Name != 0);

-

-   numImages = 0;

-   fb->Width = 0;

-   fb->Height = 0;

-

-   /* Start at -2 to more easily loop over all attachment points.

-    *  -2: depth buffer

-    *  -1: stencil buffer

-    * >=0: color buffer

-    */

-   for (i = -2; i < (GLint) ctx->Const.MaxColorAttachments; i++) {

-      struct gl_renderbuffer_attachment *att;

-      GLenum f;

-      gl_format mesaFormat;

-

-      /*

-       * XXX for ARB_fbo, only check color buffers that are named by

-       * GL_READ_BUFFER and GL_DRAW_BUFFERi.

-       */

-

-      /* check for attachment completeness

-       */

-      if (i == -2) {

-         att = &fb->Attachment[BUFFER_DEPTH];

-         test_attachment_completeness(ctx, GL_DEPTH, att);

-         if (!att->Complete) {

-            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;

-            fbo_incomplete("depth attachment incomplete", -1);

-            return;

-         }

-      }

-      else if (i == -1) {

-         att = &fb->Attachment[BUFFER_STENCIL];

-         test_attachment_completeness(ctx, GL_STENCIL, att);

-         if (!att->Complete) {

-            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;

-            fbo_incomplete("stencil attachment incomplete", -1);

-            return;

-         }

-      }

-      else {

-         att = &fb->Attachment[BUFFER_COLOR0 + i];

-         test_attachment_completeness(ctx, GL_COLOR, att);

-         if (!att->Complete) {

-            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;

-            fbo_incomplete("color attachment incomplete", i);

-            return;

-         }

-      }

-

-      /* get width, height, format of the renderbuffer/texture

-       */

-      if (att->Type == GL_TEXTURE) {

-         const struct gl_texture_image *texImg

-            = att->Texture->Image[att->CubeMapFace][att->TextureLevel];

-         minWidth = MIN2(minWidth, texImg->Width);

-         maxWidth = MAX2(maxWidth, texImg->Width);

-         minHeight = MIN2(minHeight, texImg->Height);

-         maxHeight = MAX2(maxHeight, texImg->Height);

-         f = texImg->_BaseFormat;

-         mesaFormat = texImg->TexFormat;

-         numImages++;

-         if (!_mesa_is_legal_color_format(ctx, f) &&

-             !is_legal_depth_format(ctx, f)) {

-            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT;

-            fbo_incomplete("texture attachment incomplete", -1);

-            return;

-         }

-      }

-      else if (att->Type == GL_RENDERBUFFER_EXT) {

-         minWidth = MIN2(minWidth, att->Renderbuffer->Width);

-         maxWidth = MAX2(minWidth, att->Renderbuffer->Width);

-         minHeight = MIN2(minHeight, att->Renderbuffer->Height);

-         maxHeight = MAX2(minHeight, att->Renderbuffer->Height);

-         f = att->Renderbuffer->InternalFormat;

-         mesaFormat = att->Renderbuffer->Format;

-         numImages++;

-      }

-      else {

-         assert(att->Type == GL_NONE);

-         continue;

-      }

-

-      if (numSamples < 0) {

-         /* first buffer */

-         numSamples = att->Renderbuffer->NumSamples;

-      }

-

-      /* check if integer color */

-      fb->_IntegerColor = _mesa_is_format_integer_color(mesaFormat);

-

-      /* Error-check width, height, format, samples

-       */

-      if (numImages == 1) {

-         /* save format, num samples */

-         if (i >= 0) {

-            intFormat = f;

-         }

-      }

-      else {

-         if (!ctx->Extensions.ARB_framebuffer_object) {

-            /* check that width, height, format are same */

-            if (minWidth != maxWidth || minHeight != maxHeight) {

-               fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT;

-               fbo_incomplete("width or height mismatch", -1);

-               return;

-            }

-            /* check that all color buffer have same format */

-            if (intFormat != GL_NONE && f != intFormat) {

-               fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT;

-               fbo_incomplete("format mismatch", -1);

-               return;

-            }

-         }

-         if (att->Renderbuffer &&

-             att->Renderbuffer->NumSamples != numSamples) {

-            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE;

-            fbo_incomplete("inconsistant number of samples", i);

-            return;

-         }            

-

-      }

-   }

-

-#if FEATURE_GL

-   if (ctx->API == API_OPENGL) {

-      /* Check that all DrawBuffers are present */

-      for (j = 0; j < ctx->Const.MaxDrawBuffers; j++) {

-	 if (fb->ColorDrawBuffer[j] != GL_NONE) {

-	    const struct gl_renderbuffer_attachment *att

-	       = _mesa_get_attachment(ctx, fb, fb->ColorDrawBuffer[j]);

-	    assert(att);

-	    if (att->Type == GL_NONE) {

-	       fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT;

-	       fbo_incomplete("missing drawbuffer", j);

-	       return;

-	    }

-	 }

-      }

-

-      /* Check that the ReadBuffer is present */

-      if (fb->ColorReadBuffer != GL_NONE) {

-	 const struct gl_renderbuffer_attachment *att

-	    = _mesa_get_attachment(ctx, fb, fb->ColorReadBuffer);

-	 assert(att);

-	 if (att->Type == GL_NONE) {

-	    fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT;

-            fbo_incomplete("missing readbuffer", -1);

-	    return;

-	 }

-      }

-   }

-#else

-   (void) j;

-#endif

-

-   if (numImages == 0) {

-      fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT;

-      fbo_incomplete("no attachments", -1);

-      return;

-   }

-

-   /* Provisionally set status = COMPLETE ... */

-   fb->_Status = GL_FRAMEBUFFER_COMPLETE_EXT;

-

-   /* ... but the driver may say the FB is incomplete.

-    * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED

-    * if anything.

-    */

-   if (ctx->Driver.ValidateFramebuffer) {

-      ctx->Driver.ValidateFramebuffer(ctx, fb);

-      if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {

-         fbo_incomplete("driver marked FBO as incomplete", -1);

-      }

-   }

-

-   if (fb->_Status == GL_FRAMEBUFFER_COMPLETE_EXT) {

-      /*

-       * Note that if ARB_framebuffer_object is supported and the attached

-       * renderbuffers/textures are different sizes, the framebuffer

-       * width/height will be set to the smallest width/height.

-       */

-      fb->Width = minWidth;

-      fb->Height = minHeight;

-

-      /* finally, update the visual info for the framebuffer */

-      _mesa_update_framebuffer_visual(ctx, fb);

-   }

-}

-

-

-GLboolean GLAPIENTRY

-_mesa_IsRenderbufferEXT(GLuint renderbuffer)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);

-   if (renderbuffer) {

-      struct gl_renderbuffer *rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);

-      if (rb != NULL && rb != &DummyRenderbuffer)

-         return GL_TRUE;

-   }

-   return GL_FALSE;

-}

-

-

-void GLAPIENTRY

-_mesa_BindRenderbufferEXT(GLenum target, GLuint renderbuffer)

-{

-   struct gl_renderbuffer *newRb;

-   GET_CURRENT_CONTEXT(ctx);

-

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (target != GL_RENDERBUFFER_EXT) {

-      _mesa_error(ctx, GL_INVALID_ENUM, "glBindRenderbufferEXT(target)");

-      return;

-   }

-

-   /* No need to flush here since the render buffer binding has no

-    * effect on rendering state.

-    */

-

-   if (renderbuffer) {

-      newRb = _mesa_lookup_renderbuffer(ctx, renderbuffer);

-      if (newRb == &DummyRenderbuffer) {

-         /* ID was reserved, but no real renderbuffer object made yet */

-         newRb = NULL;

-      }

-      else if (!newRb && ctx->Extensions.ARB_framebuffer_object) {

-         /* All RB IDs must be Gen'd */

-         _mesa_error(ctx, GL_INVALID_OPERATION, "glBindRenderbuffer(buffer)");

-         return;

-      }

-

-      if (!newRb) {

-	 /* create new renderbuffer object */

-	 newRb = ctx->Driver.NewRenderbuffer(ctx, renderbuffer);

-	 if (!newRb) {

-	    _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindRenderbufferEXT");

-	    return;

-	 }

-         ASSERT(newRb->AllocStorage);

-         _mesa_HashInsert(ctx->Shared->RenderBuffers, renderbuffer, newRb);

-         newRb->RefCount = 1; /* referenced by hash table */

-      }

-   }

-   else {

-      newRb = NULL;

-   }

-

-   ASSERT(newRb != &DummyRenderbuffer);

-

-   _mesa_reference_renderbuffer(&ctx->CurrentRenderbuffer, newRb);

-}

-

-

-/**

- * If the given renderbuffer is anywhere attached to the framebuffer, detach

- * the renderbuffer.

- * This is used when a renderbuffer object is deleted.

- * The spec calls for unbinding.

- */

-static void

-detach_renderbuffer(struct gl_context *ctx,

-                    struct gl_framebuffer *fb,

-                    struct gl_renderbuffer *rb)

-{

-   GLuint i;

-   for (i = 0; i < BUFFER_COUNT; i++) {

-      if (fb->Attachment[i].Renderbuffer == rb) {

-         _mesa_remove_attachment(ctx, &fb->Attachment[i]);

-      }

-   }

-   invalidate_framebuffer(fb);

-}

-

-

-void GLAPIENTRY

-_mesa_DeleteRenderbuffersEXT(GLsizei n, const GLuint *renderbuffers)

-{

-   GLint i;

-   GET_CURRENT_CONTEXT(ctx);

-

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-   FLUSH_VERTICES(ctx, _NEW_BUFFERS);

-

-   for (i = 0; i < n; i++) {

-      if (renderbuffers[i] > 0) {

-	 struct gl_renderbuffer *rb;

-	 rb = _mesa_lookup_renderbuffer(ctx, renderbuffers[i]);

-	 if (rb) {

-            /* check if deleting currently bound renderbuffer object */

-            if (rb == ctx->CurrentRenderbuffer) {

-               /* bind default */

-               ASSERT(rb->RefCount >= 2);

-               _mesa_BindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);

-            }

-

-            if (ctx->DrawBuffer->Name) {

-               detach_renderbuffer(ctx, ctx->DrawBuffer, rb);

-            }

-            if (ctx->ReadBuffer->Name && ctx->ReadBuffer != ctx->DrawBuffer) {

-               detach_renderbuffer(ctx, ctx->ReadBuffer, rb);

-            }

-

-	    /* Remove from hash table immediately, to free the ID.

-             * But the object will not be freed until it's no longer

-             * referenced anywhere else.

-             */

-	    _mesa_HashRemove(ctx->Shared->RenderBuffers, renderbuffers[i]);

-

-            if (rb != &DummyRenderbuffer) {

-               /* no longer referenced by hash table */

-               _mesa_reference_renderbuffer(&rb, NULL);

-	    }

-	 }

-      }

-   }

-}

-

-

-void GLAPIENTRY

-_mesa_GenRenderbuffersEXT(GLsizei n, GLuint *renderbuffers)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   GLuint first;

-   GLint i;

-

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (n < 0) {

-      _mesa_error(ctx, GL_INVALID_VALUE, "glGenRenderbuffersEXT(n)");

-      return;

-   }

-

-   if (!renderbuffers)

-      return;

-

-   first = _mesa_HashFindFreeKeyBlock(ctx->Shared->RenderBuffers, n);

-

-   for (i = 0; i < n; i++) {

-      GLuint name = first + i;

-      renderbuffers[i] = name;

-      /* insert dummy placeholder into hash table */

-      _glthread_LOCK_MUTEX(ctx->Shared->Mutex);

-      _mesa_HashInsert(ctx->Shared->RenderBuffers, name, &DummyRenderbuffer);

-      _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);

-   }

-}

-

-

-/**

- * Given an internal format token for a render buffer, return the

- * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX,

- * GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL_EXT, GL_ALPHA, GL_LUMINANCE,

- * GL_LUMINANCE_ALPHA, GL_INTENSITY, etc).

- *

- * This is similar to _mesa_base_tex_format() but the set of valid

- * internal formats is different.

- *

- * Note that even if a format is determined to be legal here, validation

- * of the FBO may fail if the format is not supported by the driver/GPU.

- *

- * \param internalFormat  as passed to glRenderbufferStorage()

- * \return the base internal format, or 0 if internalFormat is illegal

- */

-GLenum

-_mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat)

-{

-   /*

-    * Notes: some formats such as alpha, luminance, etc. were added

-    * with GL_ARB_framebuffer_object.

-    */

-   switch (internalFormat) {

-   case GL_ALPHA:

-   case GL_ALPHA4:

-   case GL_ALPHA8:

-   case GL_ALPHA12:

-   case GL_ALPHA16:

-      return ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0;

-   case GL_LUMINANCE:

-   case GL_LUMINANCE4:

-   case GL_LUMINANCE8:

-   case GL_LUMINANCE12:

-   case GL_LUMINANCE16:

-      return ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0;

-   case GL_LUMINANCE_ALPHA:

-   case GL_LUMINANCE4_ALPHA4:

-   case GL_LUMINANCE6_ALPHA2:

-   case GL_LUMINANCE8_ALPHA8:

-   case GL_LUMINANCE12_ALPHA4:

-   case GL_LUMINANCE12_ALPHA12:

-   case GL_LUMINANCE16_ALPHA16:

-      return ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0;

-   case GL_INTENSITY:

-   case GL_INTENSITY4:

-   case GL_INTENSITY8:

-   case GL_INTENSITY12:

-   case GL_INTENSITY16:

-      return ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0;

-   case GL_RGB:

-   case GL_R3_G3_B2:

-   case GL_RGB4:

-   case GL_RGB5:

-   case GL_RGB8:

-   case GL_RGB10:

-   case GL_RGB12:

-   case GL_RGB16:

-   case GL_SRGB8_EXT:

-      return GL_RGB;

-   case GL_RGBA:

-   case GL_RGBA2:

-   case GL_RGBA4:

-   case GL_RGB5_A1:

-   case GL_RGBA8:

-   case GL_RGB10_A2:

-   case GL_RGBA12:

-   case GL_RGBA16:

-   case GL_RGBA16_SNORM:

-   case GL_SRGB8_ALPHA8_EXT:

-      return GL_RGBA;

-   case GL_STENCIL_INDEX:

-   case GL_STENCIL_INDEX1_EXT:

-   case GL_STENCIL_INDEX4_EXT:

-   case GL_STENCIL_INDEX8_EXT:

-   case GL_STENCIL_INDEX16_EXT:

-      return GL_STENCIL_INDEX;

-   case GL_DEPTH_COMPONENT:

-   case GL_DEPTH_COMPONENT16:

-   case GL_DEPTH_COMPONENT24:

-   case GL_DEPTH_COMPONENT32:

-      return GL_DEPTH_COMPONENT;

-   case GL_DEPTH_STENCIL_EXT:

-   case GL_DEPTH24_STENCIL8_EXT:

-      if (ctx->Extensions.EXT_packed_depth_stencil)

-         return GL_DEPTH_STENCIL_EXT;

-      else

-         return 0;

-   case GL_RED:

-   case GL_R8:

-   case GL_R16:

-      return ctx->Extensions.ARB_texture_rg ? GL_RED : 0;

-   case GL_RG:

-   case GL_RG8:

-   case GL_RG16:

-      return ctx->Extensions.ARB_texture_rg ? GL_RG : 0;

-   /* XXX add floating point and integer formats eventually */

-   default:

-      return 0;

-   }

-}

-

-

-/** sentinal value, see below */

-#define NO_SAMPLES 1000

-

-

-/**

- * Helper function used by _mesa_RenderbufferStorageEXT() and 

- * _mesa_RenderbufferStorageMultisample().

- * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorageEXT().

- */

-static void

-renderbuffer_storage(GLenum target, GLenum internalFormat,

-                     GLsizei width, GLsizei height, GLsizei samples)

-{

-   const char *func = samples == NO_SAMPLES ?

-      "glRenderbufferStorage" : "RenderbufferStorageMultisample";

-   struct gl_renderbuffer *rb;

-   GLenum baseFormat;

-   GET_CURRENT_CONTEXT(ctx);

-

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (target != GL_RENDERBUFFER_EXT) {

-      _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", func);

-      return;

-   }

-

-   baseFormat = _mesa_base_fbo_format(ctx, internalFormat);

-   if (baseFormat == 0) {

-      _mesa_error(ctx, GL_INVALID_ENUM, "%s(internalFormat)", func);

-      return;

-   }

-

-   if (width < 1 || width > (GLsizei) ctx->Const.MaxRenderbufferSize) {

-      _mesa_error(ctx, GL_INVALID_VALUE, "%s(width)", func);

-      return;

-   }

-

-   if (height < 1 || height > (GLsizei) ctx->Const.MaxRenderbufferSize) {

-      _mesa_error(ctx, GL_INVALID_VALUE, "%s(height)", func);

-      return;

-   }

-

-   if (samples == NO_SAMPLES) {

-      /* NumSamples == 0 indicates non-multisampling */

-      samples = 0;

-   }

-   else if (samples > (GLsizei) ctx->Const.MaxSamples) {

-      /* note: driver may choose to use more samples than what's requested */

-      _mesa_error(ctx, GL_INVALID_VALUE, "%s(samples)", func);

-      return;

-   }

-

-   rb = ctx->CurrentRenderbuffer;

-   if (!rb) {

-      _mesa_error(ctx, GL_INVALID_OPERATION, "%s", func);

-      return;

-   }

-

-   FLUSH_VERTICES(ctx, _NEW_BUFFERS);

-

-   if (rb->InternalFormat == internalFormat &&

-       rb->Width == (GLuint) width &&

-       rb->Height == (GLuint) height) {

-      /* no change in allocation needed */

-      return;

-   }

-

-   /* These MUST get set by the AllocStorage func */

-   rb->Format = MESA_FORMAT_NONE;

-   rb->NumSamples = samples;

-

-   /* Now allocate the storage */

-   ASSERT(rb->AllocStorage);

-   if (rb->AllocStorage(ctx, rb, internalFormat, width, height)) {

-      /* No error - check/set fields now */

-      assert(rb->Format != MESA_FORMAT_NONE);

-      assert(rb->Width == (GLuint) width);

-      assert(rb->Height == (GLuint) height);

-      rb->InternalFormat = internalFormat;

-      rb->_BaseFormat = baseFormat;

-      assert(rb->_BaseFormat != 0);

-   }

-   else {

-      /* Probably ran out of memory - clear the fields */

-      rb->Width = 0;

-      rb->Height = 0;

-      rb->Format = MESA_FORMAT_NONE;

-      rb->InternalFormat = GL_NONE;

-      rb->_BaseFormat = GL_NONE;

-      rb->NumSamples = 0;

-   }

-

-   /*

-   test_framebuffer_completeness(ctx, fb);

-   */

-   /* XXX if this renderbuffer is attached anywhere, invalidate attachment

-    * points???

-    */

-}

-

-

-#if FEATURE_OES_EGL_image

-void GLAPIENTRY

-_mesa_EGLImageTargetRenderbufferStorageOES(GLenum target, GLeglImageOES image)

-{

-   struct gl_renderbuffer *rb;

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (!ctx->Extensions.OES_EGL_image) {

-      _mesa_error(ctx, GL_INVALID_OPERATION,

-                  "glEGLImageTargetRenderbufferStorageOES(unsupported)");

-      return;

-   }

-

-   if (target != GL_RENDERBUFFER) {

-      _mesa_error(ctx, GL_INVALID_ENUM,

-                  "EGLImageTargetRenderbufferStorageOES");

-      return;

-   }

-

-   rb = ctx->CurrentRenderbuffer;

-   if (!rb) {

-      _mesa_error(ctx, GL_INVALID_OPERATION,

-                  "EGLImageTargetRenderbufferStorageOES");

-      return;

-   }

-

-   FLUSH_VERTICES(ctx, _NEW_BUFFERS);

-

-   ctx->Driver.EGLImageTargetRenderbufferStorage(ctx, rb, image);

-}

-#endif

-

-

-/**

- * Helper function for _mesa_GetRenderbufferParameterivEXT() and

- * _mesa_GetFramebufferAttachmentParameterivEXT()

- * We have to be careful to respect the base format.  For example, if a

- * renderbuffer/texture was created with internalFormat=GL_RGB but the

- * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE

- * we need to return zero.

- */

-static GLint

-get_component_bits(GLenum pname, GLenum baseFormat, gl_format format)

-{

-   switch (pname) {

-   case GL_RENDERBUFFER_RED_SIZE_EXT:

-   case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:

-      if (baseFormat == GL_RGB || baseFormat == GL_RGBA ||

-	  baseFormat == GL_RG || baseFormat == GL_RED)

-         return _mesa_get_format_bits(format, pname);

-      else

-         return 0;

-   case GL_RENDERBUFFER_GREEN_SIZE_EXT:

-   case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:

-      if (baseFormat == GL_RGB || baseFormat == GL_RGBA || baseFormat == GL_RG)

-         return _mesa_get_format_bits(format, pname);

-      else

-         return 0;

-   case GL_RENDERBUFFER_BLUE_SIZE_EXT:

-   case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:

-      if (baseFormat == GL_RGB || baseFormat == GL_RGBA)

-         return _mesa_get_format_bits(format, pname);

-      else

-         return 0;

-   case GL_RENDERBUFFER_ALPHA_SIZE_EXT:

-   case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:

-      if (baseFormat == GL_RGBA || baseFormat == GL_ALPHA ||

-	  baseFormat == GL_LUMINANCE_ALPHA)

-         return _mesa_get_format_bits(format, pname);

-      else

-         return 0;

-   case GL_RENDERBUFFER_DEPTH_SIZE_EXT:

-   case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:

-      if (baseFormat == GL_DEPTH_COMPONENT || baseFormat == GL_DEPTH_STENCIL)

-         return _mesa_get_format_bits(format, pname);

-      else

-         return 0;

-   case GL_RENDERBUFFER_STENCIL_SIZE_EXT:

-   case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:

-      if (baseFormat == GL_STENCIL_INDEX || baseFormat == GL_DEPTH_STENCIL)

-         return _mesa_get_format_bits(format, pname);

-      else

-         return 0;

-   default:

-      return 0;

-   }

-}

-

-

-

-void GLAPIENTRY

-_mesa_RenderbufferStorageEXT(GLenum target, GLenum internalFormat,

-                             GLsizei width, GLsizei height)

-{

-   /* GL_ARB_fbo says calling this function is equivalent to calling

-    * glRenderbufferStorageMultisample() with samples=0.  We pass in

-    * a token value here just for error reporting purposes.

-    */

-   renderbuffer_storage(target, internalFormat, width, height, NO_SAMPLES);

-}

-

-

-void GLAPIENTRY

-_mesa_RenderbufferStorageMultisample(GLenum target, GLsizei samples,

-                                     GLenum internalFormat,

-                                     GLsizei width, GLsizei height)

-{

-   renderbuffer_storage(target, internalFormat, width, height, samples);

-}

-

-

-/**

- * OpenGL ES version of glRenderBufferStorage.

- */

-void GLAPIENTRY

-_es_RenderbufferStorageEXT(GLenum target, GLenum internalFormat,

-			   GLsizei width, GLsizei height)

-{

-   switch (internalFormat) {

-   case GL_RGB565:

-      /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */

-      /* choose a closest format */

-      internalFormat = GL_RGB5;

-      break;

-   default:

-      break;

-   }

-

-   renderbuffer_storage(target, internalFormat, width, height, 0);

-}

-

-

-void GLAPIENTRY

-_mesa_GetRenderbufferParameterivEXT(GLenum target, GLenum pname, GLint *params)

-{

-   struct gl_renderbuffer *rb;

-   GET_CURRENT_CONTEXT(ctx);

-

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (target != GL_RENDERBUFFER_EXT) {

-      _mesa_error(ctx, GL_INVALID_ENUM,

-                  "glGetRenderbufferParameterivEXT(target)");

-      return;

-   }

-

-   rb = ctx->CurrentRenderbuffer;

-   if (!rb) {

-      _mesa_error(ctx, GL_INVALID_OPERATION,

-                  "glGetRenderbufferParameterivEXT");

-      return;

-   }

-

-   /* No need to flush here since we're just quering state which is

-    * not effected by rendering.

-    */

-

-   switch (pname) {

-   case GL_RENDERBUFFER_WIDTH_EXT:

-      *params = rb->Width;

-      return;

-   case GL_RENDERBUFFER_HEIGHT_EXT:

-      *params = rb->Height;

-      return;

-   case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT:

-      *params = rb->InternalFormat;

-      return;

-   case GL_RENDERBUFFER_RED_SIZE_EXT:

-   case GL_RENDERBUFFER_GREEN_SIZE_EXT:

-   case GL_RENDERBUFFER_BLUE_SIZE_EXT:

-   case GL_RENDERBUFFER_ALPHA_SIZE_EXT:

-   case GL_RENDERBUFFER_DEPTH_SIZE_EXT:

-   case GL_RENDERBUFFER_STENCIL_SIZE_EXT:

-      *params = get_component_bits(pname, rb->_BaseFormat, rb->Format);

-      break;

-   case GL_RENDERBUFFER_SAMPLES:

-      if (ctx->Extensions.ARB_framebuffer_object) {

-         *params = rb->NumSamples;

-         break;

-      }

-      /* fallthrough */

-   default:

-      _mesa_error(ctx, GL_INVALID_ENUM,

-                  "glGetRenderbufferParameterivEXT(target)");

-      return;

-   }

-}

-

-

-GLboolean GLAPIENTRY

-_mesa_IsFramebufferEXT(GLuint framebuffer)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);

-   if (framebuffer) {

-      struct gl_framebuffer *rb = _mesa_lookup_framebuffer(ctx, framebuffer);

-      if (rb != NULL && rb != &DummyFramebuffer)

-         return GL_TRUE;

-   }

-   return GL_FALSE;

-}

-

-

-/**

- * Check if any of the attachments of the given framebuffer are textures

- * (render to texture).  Call ctx->Driver.RenderTexture() for such

- * attachments.

- */

-static void

-check_begin_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)

-{

-   GLuint i;

-   ASSERT(ctx->Driver.RenderTexture);

-

-   if (fb->Name == 0)

-      return; /* can't render to texture with winsys framebuffers */

-

-   for (i = 0; i < BUFFER_COUNT; i++) {

-      struct gl_renderbuffer_attachment *att = fb->Attachment + i;

-      struct gl_texture_object *texObj = att->Texture;

-      if (texObj

-          && texObj->Image[att->CubeMapFace][att->TextureLevel]) {

-         ctx->Driver.RenderTexture(ctx, fb, att);

-      }

-   }

-}

-

-

-/**

- * Examine all the framebuffer's attachments to see if any are textures.

- * If so, call ctx->Driver.FinishRenderTexture() for each texture to

- * notify the device driver that the texture image may have changed.

- */

-static void

-check_end_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)

-{

-   if (fb->Name == 0)

-      return; /* can't render to texture with winsys framebuffers */

-

-   if (ctx->Driver.FinishRenderTexture) {

-      GLuint i;

-      for (i = 0; i < BUFFER_COUNT; i++) {

-         struct gl_renderbuffer_attachment *att = fb->Attachment + i;

-         if (att->Texture && att->Renderbuffer) {

-            ctx->Driver.FinishRenderTexture(ctx, att);

-         }

-      }

-   }

-}

-

-

-void GLAPIENTRY

-_mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer)

-{

-   struct gl_framebuffer *newDrawFb, *newReadFb;

-   struct gl_framebuffer *oldDrawFb, *oldReadFb;

-   GLboolean bindReadBuf, bindDrawBuf;

-   GET_CURRENT_CONTEXT(ctx);

-

-#ifdef DEBUG

-   if (ctx->Extensions.ARB_framebuffer_object) {

-      ASSERT(ctx->Extensions.EXT_framebuffer_object);

-      ASSERT(ctx->Extensions.EXT_framebuffer_blit);

-   }

-#endif

-

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (!ctx->Extensions.EXT_framebuffer_object) {

-      _mesa_error(ctx, GL_INVALID_OPERATION,

-                  "glBindFramebufferEXT(unsupported)");

-      return;

-   }

-

-   switch (target) {

-#if FEATURE_EXT_framebuffer_blit

-   case GL_DRAW_FRAMEBUFFER_EXT:

-      if (!ctx->Extensions.EXT_framebuffer_blit) {

-         _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");

-         return;

-      }

-      bindDrawBuf = GL_TRUE;

-      bindReadBuf = GL_FALSE;

-      break;

-   case GL_READ_FRAMEBUFFER_EXT:

-      if (!ctx->Extensions.EXT_framebuffer_blit) {

-         _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");

-         return;

-      }

-      bindDrawBuf = GL_FALSE;

-      bindReadBuf = GL_TRUE;

-      break;

-#endif

-   case GL_FRAMEBUFFER_EXT:

-      bindDrawBuf = GL_TRUE;

-      bindReadBuf = GL_TRUE;

-      break;

-   default:

-      _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");

-      return;

-   }

-

-   if (framebuffer) {

-      /* Binding a user-created framebuffer object */

-      newDrawFb = _mesa_lookup_framebuffer(ctx, framebuffer);

-      if (newDrawFb == &DummyFramebuffer) {

-         /* ID was reserved, but no real framebuffer object made yet */

-         newDrawFb = NULL;

-      }

-      else if (!newDrawFb && ctx->Extensions.ARB_framebuffer_object) {

-         /* All FBO IDs must be Gen'd */

-         _mesa_error(ctx, GL_INVALID_OPERATION, "glBindFramebuffer(buffer)");

-         return;

-      }

-

-      if (!newDrawFb) {

-	 /* create new framebuffer object */

-	 newDrawFb = ctx->Driver.NewFramebuffer(ctx, framebuffer);

-	 if (!newDrawFb) {

-	    _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindFramebufferEXT");

-	    return;

-	 }

-         _mesa_HashInsert(ctx->Shared->FrameBuffers, framebuffer, newDrawFb);

-      }

-      newReadFb = newDrawFb;

-   }

-   else {

-      /* Binding the window system framebuffer (which was originally set

-       * with MakeCurrent).

-       */

-      newDrawFb = ctx->WinSysDrawBuffer;

-      newReadFb = ctx->WinSysReadBuffer;

-   }

-

-   ASSERT(newDrawFb);

-   ASSERT(newDrawFb != &DummyFramebuffer);

-

-   /* save pointers to current/old framebuffers */

-   oldDrawFb = ctx->DrawBuffer;

-   oldReadFb = ctx->ReadBuffer;

-

-   /* check if really changing bindings */

-   if (oldDrawFb == newDrawFb)

-      bindDrawBuf = GL_FALSE;

-   if (oldReadFb == newReadFb)

-      bindReadBuf = GL_FALSE;

-

-   /*

-    * OK, now bind the new Draw/Read framebuffers, if they're changing.

-    *

-    * We also check if we're beginning and/or ending render-to-texture.

-    * When a framebuffer with texture attachments is unbound, call

-    * ctx->Driver.FinishRenderTexture().

-    * When a framebuffer with texture attachments is bound, call

-    * ctx->Driver.RenderTexture().

-    *

-    * Note that if the ReadBuffer has texture attachments we don't consider

-    * that a render-to-texture case.

-    */

-   if (bindReadBuf) {

-      FLUSH_VERTICES(ctx, _NEW_BUFFERS);

-

-      /* check if old readbuffer was render-to-texture */

-      check_end_texture_render(ctx, oldReadFb);

-

-      _mesa_reference_framebuffer(&ctx->ReadBuffer, newReadFb);

-   }

-

-   if (bindDrawBuf) {

-      FLUSH_VERTICES(ctx, _NEW_BUFFERS);

-

-      /* check if old read/draw buffers were render-to-texture */

-      if (!bindReadBuf)

-         check_end_texture_render(ctx, oldReadFb);

-

-      if (oldDrawFb != oldReadFb)

-         check_end_texture_render(ctx, oldDrawFb);

-

-      /* check if newly bound framebuffer has any texture attachments */

-      check_begin_texture_render(ctx, newDrawFb);

-

-      _mesa_reference_framebuffer(&ctx->DrawBuffer, newDrawFb);

-   }

-

-   if ((bindDrawBuf || bindReadBuf) && ctx->Driver.BindFramebuffer) {

-      ctx->Driver.BindFramebuffer(ctx, target, newDrawFb, newReadFb);

-   }

-}

-

-

-void GLAPIENTRY

-_mesa_DeleteFramebuffersEXT(GLsizei n, const GLuint *framebuffers)

-{

-   GLint i;

-   GET_CURRENT_CONTEXT(ctx);

-

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-   FLUSH_VERTICES(ctx, _NEW_BUFFERS);

-

-   for (i = 0; i < n; i++) {

-      if (framebuffers[i] > 0) {

-	 struct gl_framebuffer *fb;

-	 fb = _mesa_lookup_framebuffer(ctx, framebuffers[i]);

-	 if (fb) {

-            ASSERT(fb == &DummyFramebuffer || fb->Name == framebuffers[i]);

-

-            /* check if deleting currently bound framebuffer object */

-            if (ctx->Extensions.EXT_framebuffer_blit) {

-               /* separate draw/read binding points */

-               if (fb == ctx->DrawBuffer) {

-                  /* bind default */

-                  ASSERT(fb->RefCount >= 2);

-                  _mesa_BindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0);

-               }

-               if (fb == ctx->ReadBuffer) {

-                  /* bind default */

-                  ASSERT(fb->RefCount >= 2);

-                  _mesa_BindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, 0);

-               }

-            }

-            else {

-               /* only one binding point for read/draw buffers */

-               if (fb == ctx->DrawBuffer || fb == ctx->ReadBuffer) {

-                  /* bind default */

-                  ASSERT(fb->RefCount >= 2);

-                  _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);

-               }    

-            }

-

-	    /* remove from hash table immediately, to free the ID */

-	    _mesa_HashRemove(ctx->Shared->FrameBuffers, framebuffers[i]);

-

-            if (fb != &DummyFramebuffer) {

-               /* But the object will not be freed until it's no longer

-                * bound in any context.

-                */

-               _mesa_reference_framebuffer(&fb, NULL);

-	    }

-	 }

-      }

-   }

-}

-

-

-void GLAPIENTRY

-_mesa_GenFramebuffersEXT(GLsizei n, GLuint *framebuffers)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   GLuint first;

-   GLint i;

-

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (n < 0) {

-      _mesa_error(ctx, GL_INVALID_VALUE, "glGenFramebuffersEXT(n)");

-      return;

-   }

-

-   if (!framebuffers)

-      return;

-

-   first = _mesa_HashFindFreeKeyBlock(ctx->Shared->FrameBuffers, n);

-

-   for (i = 0; i < n; i++) {

-      GLuint name = first + i;

-      framebuffers[i] = name;

-      /* insert dummy placeholder into hash table */

-      _glthread_LOCK_MUTEX(ctx->Shared->Mutex);

-      _mesa_HashInsert(ctx->Shared->FrameBuffers, name, &DummyFramebuffer);

-      _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);

-   }

-}

-

-

-

-GLenum GLAPIENTRY

-_mesa_CheckFramebufferStatusEXT(GLenum target)

-{

-   struct gl_framebuffer *buffer;

-   GET_CURRENT_CONTEXT(ctx);

-

-   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);

-

-   switch (target) {

-#if FEATURE_EXT_framebuffer_blit

-   case GL_DRAW_FRAMEBUFFER_EXT:

-      if (!ctx->Extensions.EXT_framebuffer_blit) {

-         _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)");

-         return 0;

-      }

-      buffer = ctx->DrawBuffer;

-      break;

-   case GL_READ_FRAMEBUFFER_EXT:

-      if (!ctx->Extensions.EXT_framebuffer_blit) {

-         _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)");

-         return 0;

-      }

-      buffer = ctx->ReadBuffer;

-      break;

-#endif

-   case GL_FRAMEBUFFER_EXT:

-      buffer = ctx->DrawBuffer;

-      break;

-   default:

-      _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)");

-      return 0; /* formerly GL_FRAMEBUFFER_STATUS_ERROR_EXT */

-   }

-

-   if (buffer->Name == 0) {

-      /* The window system / default framebuffer is always complete */

-      return GL_FRAMEBUFFER_COMPLETE_EXT;

-   }

-

-   /* No need to flush here */

-

-   if (buffer->_Status != GL_FRAMEBUFFER_COMPLETE) {

-      _mesa_test_framebuffer_completeness(ctx, buffer);

-   }

-

-   return buffer->_Status;

-}

-

-

-

-/**

- * Common code called by glFramebufferTexture1D/2D/3DEXT().

- */

-static void

-framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target, 

-                    GLenum attachment, GLenum textarget, GLuint texture,

-                    GLint level, GLint zoffset)

-{

-   struct gl_renderbuffer_attachment *att;

-   struct gl_texture_object *texObj = NULL;

-   struct gl_framebuffer *fb;

-   GLboolean error = GL_FALSE;

-

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   switch (target) {

-   case GL_READ_FRAMEBUFFER_EXT:

-      error = !ctx->Extensions.EXT_framebuffer_blit;

-      fb = ctx->ReadBuffer;

-      break;

-   case GL_DRAW_FRAMEBUFFER_EXT:

-      error = !ctx->Extensions.EXT_framebuffer_blit;

-      /* fall-through */

-   case GL_FRAMEBUFFER_EXT:

-      fb = ctx->DrawBuffer;

-      break;

-   default:

-      error = GL_TRUE;

-   }

-

-   if (error) {

-      _mesa_error(ctx, GL_INVALID_ENUM,

-                  "glFramebufferTexture%sEXT(target=0x%x)", caller, target);

-      return;

-   }

-

-   ASSERT(fb);

-

-   /* check framebuffer binding */

-   if (fb->Name == 0) {

-      _mesa_error(ctx, GL_INVALID_OPERATION,

-                  "glFramebufferTexture%sEXT", caller);

-      return;

-   }

-

-

-   /* The textarget, level, and zoffset parameters are only validated if

-    * texture is non-zero.

-    */

-   if (texture) {

-      GLboolean err = GL_TRUE;

-

-      texObj = _mesa_lookup_texture(ctx, texture);

-      if (texObj != NULL) {

-         if (textarget == 0) {

-            /* XXX what's the purpose of this? */

-            err = (texObj->Target != GL_TEXTURE_3D) &&

-                (texObj->Target != GL_TEXTURE_1D_ARRAY_EXT) &&

-                (texObj->Target != GL_TEXTURE_2D_ARRAY_EXT);

-         }

-         else {

-            err = (texObj->Target == GL_TEXTURE_CUBE_MAP)

-                ? !IS_CUBE_FACE(textarget)

-                : (texObj->Target != textarget);

-         }

-      }

-      else {

-         /* can't render to a non-existant texture */

-         _mesa_error(ctx, GL_INVALID_OPERATION,

-                     "glFramebufferTexture%sEXT(non existant texture)",

-                     caller);

-         return;

-      }

-

-      if (err) {

-         _mesa_error(ctx, GL_INVALID_OPERATION,

-                     "glFramebufferTexture%sEXT(texture target mismatch)",

-                     caller);

-         return;

-      }

-

-      if (texObj->Target == GL_TEXTURE_3D) {

-         const GLint maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);

-         if (zoffset < 0 || zoffset >= maxSize) {

-            _mesa_error(ctx, GL_INVALID_VALUE,

-                        "glFramebufferTexture%sEXT(zoffset)", caller);

-            return;

-         }

-      }

-      else if ((texObj->Target == GL_TEXTURE_1D_ARRAY_EXT) ||

-               (texObj->Target == GL_TEXTURE_2D_ARRAY_EXT)) {

-         if (zoffset < 0 || zoffset >= ctx->Const.MaxArrayTextureLayers) {

-            _mesa_error(ctx, GL_INVALID_VALUE,

-                        "glFramebufferTexture%sEXT(layer)", caller);

-            return;

-         }

-      }

-

-      if ((level < 0) || 

-          (level >= _mesa_max_texture_levels(ctx, texObj->Target))) {

-         _mesa_error(ctx, GL_INVALID_VALUE,

-                     "glFramebufferTexture%sEXT(level)", caller);

-         return;

-      }

-   }

-

-   att = _mesa_get_attachment(ctx, fb, attachment);

-   if (att == NULL) {

-      _mesa_error(ctx, GL_INVALID_ENUM,

-                  "glFramebufferTexture%sEXT(attachment)", caller);

-      return;

-   }

-

-   FLUSH_VERTICES(ctx, _NEW_BUFFERS);

-

-   _glthread_LOCK_MUTEX(fb->Mutex);

-   if (texObj) {

-      _mesa_set_texture_attachment(ctx, fb, att, texObj, textarget,

-                                   level, zoffset);

-      /* Set the render-to-texture flag.  We'll check this flag in

-       * glTexImage() and friends to determine if we need to revalidate

-       * any FBOs that might be rendering into this texture.

-       * This flag never gets cleared since it's non-trivial to determine

-       * when all FBOs might be done rendering to this texture.  That's OK

-       * though since it's uncommon to render to a texture then repeatedly

-       * call glTexImage() to change images in the texture.

-       */

-      texObj->_RenderToTexture = GL_TRUE;

-   }

-   else {

-      _mesa_remove_attachment(ctx, att);

-   }

-

-   invalidate_framebuffer(fb);

-

-   _glthread_UNLOCK_MUTEX(fb->Mutex);

-}

-

-

-

-void GLAPIENTRY

-_mesa_FramebufferTexture1DEXT(GLenum target, GLenum attachment,

-                              GLenum textarget, GLuint texture, GLint level)

-{

-   GET_CURRENT_CONTEXT(ctx);

-

-   if ((texture != 0) && (textarget != GL_TEXTURE_1D)) {

-      _mesa_error(ctx, GL_INVALID_ENUM,

-                  "glFramebufferTexture1DEXT(textarget)");

-      return;

-   }

-

-   framebuffer_texture(ctx, "1D", target, attachment, textarget, texture,

-                       level, 0);

-}

-

-

-void GLAPIENTRY

-_mesa_FramebufferTexture2DEXT(GLenum target, GLenum attachment,

-                              GLenum textarget, GLuint texture, GLint level)

-{

-   GET_CURRENT_CONTEXT(ctx);

-

-   if ((texture != 0) &&

-       (textarget != GL_TEXTURE_2D) &&

-       (textarget != GL_TEXTURE_RECTANGLE_ARB) &&

-       (!IS_CUBE_FACE(textarget))) {

-      _mesa_error(ctx, GL_INVALID_OPERATION,

-                  "glFramebufferTexture2DEXT(textarget=0x%x)", textarget);

-      return;

-   }

-

-   framebuffer_texture(ctx, "2D", target, attachment, textarget, texture,

-                       level, 0);

-}

-

-

-void GLAPIENTRY

-_mesa_FramebufferTexture3DEXT(GLenum target, GLenum attachment,

-                              GLenum textarget, GLuint texture,

-                              GLint level, GLint zoffset)

-{

-   GET_CURRENT_CONTEXT(ctx);

-

-   if ((texture != 0) && (textarget != GL_TEXTURE_3D)) {

-      _mesa_error(ctx, GL_INVALID_ENUM,

-                  "glFramebufferTexture3DEXT(textarget)");

-      return;

-   }

-

-   framebuffer_texture(ctx, "3D", target, attachment, textarget, texture,

-                       level, zoffset);

-}

-

-

-void GLAPIENTRY

-_mesa_FramebufferTextureLayerEXT(GLenum target, GLenum attachment,

-                                 GLuint texture, GLint level, GLint layer)

-{

-   GET_CURRENT_CONTEXT(ctx);

-

-   framebuffer_texture(ctx, "Layer", target, attachment, 0, texture,

-                       level, layer);

-}

-

-

-void GLAPIENTRY

-_mesa_FramebufferRenderbufferEXT(GLenum target, GLenum attachment,

-                                 GLenum renderbufferTarget,

-                                 GLuint renderbuffer)

-{

-   struct gl_renderbuffer_attachment *att;

-   struct gl_framebuffer *fb;

-   struct gl_renderbuffer *rb;

-   GET_CURRENT_CONTEXT(ctx);

-

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   switch (target) {

-#if FEATURE_EXT_framebuffer_blit

-   case GL_DRAW_FRAMEBUFFER_EXT:

-      if (!ctx->Extensions.EXT_framebuffer_blit) {

-         _mesa_error(ctx, GL_INVALID_ENUM,

-                     "glFramebufferRenderbufferEXT(target)");

-         return;

-      }

-      fb = ctx->DrawBuffer;

-      break;

-   case GL_READ_FRAMEBUFFER_EXT:

-      if (!ctx->Extensions.EXT_framebuffer_blit) {

-         _mesa_error(ctx, GL_INVALID_ENUM,

-                     "glFramebufferRenderbufferEXT(target)");

-         return;

-      }

-      fb = ctx->ReadBuffer;

-      break;

-#endif

-   case GL_FRAMEBUFFER_EXT:

-      fb = ctx->DrawBuffer;

-      break;

-   default:

-      _mesa_error(ctx, GL_INVALID_ENUM,

-                  "glFramebufferRenderbufferEXT(target)");

-      return;

-   }

-

-   if (renderbufferTarget != GL_RENDERBUFFER_EXT) {

-      _mesa_error(ctx, GL_INVALID_ENUM,

-                  "glFramebufferRenderbufferEXT(renderbufferTarget)");

-      return;

-   }

-

-   if (fb->Name == 0) {

-      /* Can't attach new renderbuffers to a window system framebuffer */

-      _mesa_error(ctx, GL_INVALID_OPERATION, "glFramebufferRenderbufferEXT");

-      return;

-   }

-

-   att = _mesa_get_attachment(ctx, fb, attachment);

-   if (att == NULL) {

-      _mesa_error(ctx, GL_INVALID_ENUM,

-                  "glFramebufferRenderbufferEXT(invalid attachment %s)",

-                  _mesa_lookup_enum_by_nr(attachment));

-      return;

-   }

-

-   if (renderbuffer) {

-      rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);

-      if (!rb) {

-	 _mesa_error(ctx, GL_INVALID_OPERATION,

-		     "glFramebufferRenderbufferEXT(non-existant"

-                     " renderbuffer %u)", renderbuffer);

-	 return;

-      }

-      else if (rb == &DummyRenderbuffer) {

-         /* This is what NVIDIA does */

-	 _mesa_error(ctx, GL_INVALID_VALUE,

-		     "glFramebufferRenderbufferEXT(renderbuffer %u)",

-                     renderbuffer);

-	 return;

-      }

-   }

-   else {

-      /* remove renderbuffer attachment */

-      rb = NULL;

-   }

-

-   if (attachment == GL_DEPTH_STENCIL_ATTACHMENT &&

-       rb && rb->Format != MESA_FORMAT_NONE) {

-      /* make sure the renderbuffer is a depth/stencil format */

-      const GLenum baseFormat = _mesa_get_format_base_format(rb->Format);

-      if (baseFormat != GL_DEPTH_STENCIL) {

-         _mesa_error(ctx, GL_INVALID_OPERATION,

-                     "glFramebufferRenderbufferEXT(renderbuffer"

-                     " is not DEPTH_STENCIL format)");

-         return;

-      }

-   }

-

-

-   FLUSH_VERTICES(ctx, _NEW_BUFFERS);

-

-   assert(ctx->Driver.FramebufferRenderbuffer);

-   ctx->Driver.FramebufferRenderbuffer(ctx, fb, attachment, rb);

-

-   /* Some subsequent GL commands may depend on the framebuffer's visual

-    * after the binding is updated.  Update visual info now.

-    */

-   _mesa_update_framebuffer_visual(ctx, fb);

-}

-

-

-void GLAPIENTRY

-_mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,

-                                             GLenum pname, GLint *params)

-{

-   const struct gl_renderbuffer_attachment *att;

-   struct gl_framebuffer *buffer;

-   GET_CURRENT_CONTEXT(ctx);

-

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   switch (target) {

-#if FEATURE_EXT_framebuffer_blit

-   case GL_DRAW_FRAMEBUFFER_EXT:

-      if (!ctx->Extensions.EXT_framebuffer_blit) {

-         _mesa_error(ctx, GL_INVALID_ENUM,

-                     "glGetFramebufferAttachmentParameterivEXT(target)");

-         return;

-      }

-      buffer = ctx->DrawBuffer;

-      break;

-   case GL_READ_FRAMEBUFFER_EXT:

-      if (!ctx->Extensions.EXT_framebuffer_blit) {

-         _mesa_error(ctx, GL_INVALID_ENUM,

-                     "glGetFramebufferAttachmentParameterivEXT(target)");

-         return;

-      }

-      buffer = ctx->ReadBuffer;

-      break;

-#endif

-   case GL_FRAMEBUFFER_EXT:

-      buffer = ctx->DrawBuffer;

-      break;

-   default:

-      _mesa_error(ctx, GL_INVALID_ENUM,

-                  "glGetFramebufferAttachmentParameterivEXT(target)");

-      return;

-   }

-

-   if (buffer->Name == 0) {

-      /* the default / window-system FBO */

-      att = _mesa_get_fb0_attachment(ctx, buffer, attachment);

-   }

-   else {

-      /* user-created framebuffer FBO */

-      att = _mesa_get_attachment(ctx, buffer, attachment);

-   }

-

-   if (att == NULL) {

-      _mesa_error(ctx, GL_INVALID_ENUM,

-                  "glGetFramebufferAttachmentParameterivEXT(attachment)");

-      return;

-   }

-

-   if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {

-      /* the depth and stencil attachments must point to the same buffer */

-      const struct gl_renderbuffer_attachment *depthAtt, *stencilAtt;

-      depthAtt = _mesa_get_attachment(ctx, buffer, GL_DEPTH_ATTACHMENT);

-      stencilAtt = _mesa_get_attachment(ctx, buffer, GL_STENCIL_ATTACHMENT);

-      if (depthAtt->Renderbuffer != stencilAtt->Renderbuffer) {

-         _mesa_error(ctx, GL_INVALID_OPERATION,

-                     "glGetFramebufferAttachmentParameterivEXT(DEPTH/STENCIL"

-                     " attachments differ)");

-         return;

-      }

-   }

-

-   /* No need to flush here */

-

-   switch (pname) {

-   case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT:

-      *params = buffer->Name == 0 ? GL_FRAMEBUFFER_DEFAULT : att->Type;

-      return;

-   case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT:

-      if (att->Type == GL_RENDERBUFFER_EXT) {

-	 *params = att->Renderbuffer->Name;

-      }

-      else if (att->Type == GL_TEXTURE) {

-	 *params = att->Texture->Name;

-      }

-      else {

-         assert(att->Type == GL_NONE);

-         *params = 0;

-      }

-      return;

-   case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT:

-      if (att->Type == GL_TEXTURE) {

-	 *params = att->TextureLevel;

-      }

-      else {

-	 _mesa_error(ctx, GL_INVALID_ENUM,

-		     "glGetFramebufferAttachmentParameterivEXT(pname)");

-      }

-      return;

-   case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT:

-      if (att->Type == GL_TEXTURE) {

-         if (att->Texture && att->Texture->Target == GL_TEXTURE_CUBE_MAP) {

-            *params = GL_TEXTURE_CUBE_MAP_POSITIVE_X + att->CubeMapFace;

-         }

-         else {

-            *params = 0;

-         }

-      }

-      else {

-	 _mesa_error(ctx, GL_INVALID_ENUM,

-		     "glGetFramebufferAttachmentParameterivEXT(pname)");

-      }

-      return;

-   case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT:

-      if (att->Type == GL_TEXTURE) {

-         if (att->Texture && att->Texture->Target == GL_TEXTURE_3D) {

-            *params = att->Zoffset;

-         }

-         else {

-            *params = 0;

-         }

-      }

-      else {

-	 _mesa_error(ctx, GL_INVALID_ENUM,

-		     "glGetFramebufferAttachmentParameterivEXT(pname)");

-      }

-      return;

-   case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING:

-      if (!ctx->Extensions.ARB_framebuffer_object) {

-         _mesa_error(ctx, GL_INVALID_ENUM,

-                     "glGetFramebufferAttachmentParameterivEXT(pname)");

-      }

-      else {

-         if (ctx->Extensions.EXT_framebuffer_sRGB) {

-            *params = _mesa_get_format_color_encoding(att->Renderbuffer->Format);

-         }

-         else {

-            /* According to ARB_framebuffer_sRGB, we should return LINEAR

-             * if the sRGB conversion is unsupported. */

-            *params = GL_LINEAR;

-         }

-      }

-      return;

-   case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE:

-      if (!ctx->Extensions.ARB_framebuffer_object) {

-         _mesa_error(ctx, GL_INVALID_ENUM,

-                     "glGetFramebufferAttachmentParameterivEXT(pname)");

-         return;

-      }

-      else {

-         gl_format format = att->Renderbuffer->Format;

-         if (format == MESA_FORMAT_CI8 || format == MESA_FORMAT_S8) {

-            /* special cases */

-            *params = GL_INDEX;

-         }

-         else {

-            *params = _mesa_get_format_datatype(format);

-         }

-      }

-      return;

-   case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:

-   case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:

-   case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:

-   case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:

-   case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:

-   case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:

-      if (!ctx->Extensions.ARB_framebuffer_object) {

-         _mesa_error(ctx, GL_INVALID_ENUM,

-                     "glGetFramebufferAttachmentParameterivEXT(pname)");

-      }

-      else if (att->Texture) {

-         const struct gl_texture_image *texImage =

-            _mesa_select_tex_image(ctx, att->Texture, att->Texture->Target,

-                                   att->TextureLevel);

-         if (texImage) {

-            *params = get_component_bits(pname, texImage->_BaseFormat,

-                                         texImage->TexFormat);

-         }

-         else {

-            *params = 0;

-         }

-      }

-      else if (att->Renderbuffer) {

-         *params = get_component_bits(pname, att->Renderbuffer->_BaseFormat,

-                                      att->Renderbuffer->Format);

-      }

-      else {

-         *params = 0;

-      }

-      return;

-   default:

-      _mesa_error(ctx, GL_INVALID_ENUM,

-                  "glGetFramebufferAttachmentParameterivEXT(pname)");

-      return;

-   }

-}

-

-

-void GLAPIENTRY

-_mesa_GenerateMipmapEXT(GLenum target)

-{

-   struct gl_texture_object *texObj;

-   GET_CURRENT_CONTEXT(ctx);

-

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-   FLUSH_VERTICES(ctx, _NEW_BUFFERS);

-

-   switch (target) {

-   case GL_TEXTURE_1D:

-   case GL_TEXTURE_2D:

-   case GL_TEXTURE_3D:

-   case GL_TEXTURE_CUBE_MAP:

-      /* OK, legal value */

-      break;

-   default:

-      /* XXX need to implement GL_TEXTURE_1D_ARRAY and GL_TEXTURE_2D_ARRAY */

-      _mesa_error(ctx, GL_INVALID_ENUM, "glGenerateMipmapEXT(target)");

-      return;

-   }

-

-   texObj = _mesa_get_current_tex_object(ctx, target);

-

-   if (texObj->BaseLevel >= texObj->MaxLevel) {

-      /* nothing to do */

-      return;

-   }

-

-   if (texObj->Target == GL_TEXTURE_CUBE_MAP &&

-       !_mesa_cube_complete(texObj)) {

-      _mesa_error(ctx, GL_INVALID_OPERATION,

-                  "glGenerateMipmap(incomplete cube map)");

-      return;

-   }

-

-   _mesa_lock_texture(ctx, texObj);

-   if (target == GL_TEXTURE_CUBE_MAP) {

-      GLuint face;

-      for (face = 0; face < 6; face++)

-	 ctx->Driver.GenerateMipmap(ctx,

-				    GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB + face,

-				    texObj);

-   }

-   else {

-      ctx->Driver.GenerateMipmap(ctx, target, texObj);

-   }

-   _mesa_unlock_texture(ctx, texObj);

-}

-

-

-#if FEATURE_EXT_framebuffer_blit

-

-static const struct gl_renderbuffer_attachment *

-find_attachment(const struct gl_framebuffer *fb,

-                const struct gl_renderbuffer *rb)

-{

-   GLuint i;

-   for (i = 0; i < Elements(fb->Attachment); i++) {

-      if (fb->Attachment[i].Renderbuffer == rb)

-         return &fb->Attachment[i];

-   }

-   return NULL;

-}

-

-

-

-/**

- * Blit rectangular region, optionally from one framebuffer to another.

- *

- * Note, if the src buffer is multisampled and the dest is not, this is

- * when the samples must be resolved to a single color.

- */

-void GLAPIENTRY

-_mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,

-                         GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,

-                         GLbitfield mask, GLenum filter)

-{

-   const GLbitfield legalMaskBits = (GL_COLOR_BUFFER_BIT |

-                                     GL_DEPTH_BUFFER_BIT |

-                                     GL_STENCIL_BUFFER_BIT);

-   const struct gl_framebuffer *readFb, *drawFb;

-   const struct gl_renderbuffer *colorReadRb, *colorDrawRb;

-   GET_CURRENT_CONTEXT(ctx);

-

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-   FLUSH_VERTICES(ctx, _NEW_BUFFERS);

-

-   if (ctx->NewState) {

-      _mesa_update_state(ctx);

-   }

-

-   readFb = ctx->ReadBuffer;

-   drawFb = ctx->DrawBuffer;

-

-   if (!readFb || !drawFb) {

-      /* This will normally never happen but someday we may want to

-       * support MakeCurrent() with no drawables.

-       */

-      return;

-   }

-

-   /* check for complete framebuffers */

-   if (drawFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT ||

-       readFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {

-      _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,

-                  "glBlitFramebufferEXT(incomplete draw/read buffers)");

-      return;

-   }

-

-   if (filter != GL_NEAREST && filter != GL_LINEAR) {

-      _mesa_error(ctx, GL_INVALID_ENUM, "glBlitFramebufferEXT(filter)");

-      return;

-   }

-

-   if (mask & ~legalMaskBits) {

-      _mesa_error( ctx, GL_INVALID_VALUE, "glBlitFramebufferEXT(mask)");

-      return;

-   }

-

-   /* depth/stencil must be blitted with nearest filtering */

-   if ((mask & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT))

-        && filter != GL_NEAREST) {

-      _mesa_error(ctx, GL_INVALID_OPERATION,

-             "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter");

-      return;

-   }

-

-   /* get color read/draw renderbuffers */

-   if (mask & GL_COLOR_BUFFER_BIT) {

-      colorReadRb = readFb->_ColorReadBuffer;

-      colorDrawRb = drawFb->_ColorDrawBuffers[0];

-   }

-   else {

-      colorReadRb = colorDrawRb = NULL;

-   }

-

-   if (mask & GL_STENCIL_BUFFER_BIT) {

-      struct gl_renderbuffer *readRb = readFb->_StencilBuffer;

-      struct gl_renderbuffer *drawRb = drawFb->_StencilBuffer;

-      if (!readRb ||

-          !drawRb ||

-          _mesa_get_format_bits(readRb->Format, GL_STENCIL_BITS) != 

-          _mesa_get_format_bits(drawRb->Format, GL_STENCIL_BITS)) {

-         _mesa_error(ctx, GL_INVALID_OPERATION,

-                     "glBlitFramebufferEXT(stencil buffer size mismatch");

-         return;

-      }

-   }

-

-   if (mask & GL_DEPTH_BUFFER_BIT) {

-      struct gl_renderbuffer *readRb = readFb->_DepthBuffer;

-      struct gl_renderbuffer *drawRb = drawFb->_DepthBuffer;

-      if (!readRb ||

-          !drawRb ||

-          _mesa_get_format_bits(readRb->Format, GL_DEPTH_BITS) != 

-          _mesa_get_format_bits(drawRb->Format, GL_DEPTH_BITS)) {

-         _mesa_error(ctx, GL_INVALID_OPERATION,

-                     "glBlitFramebufferEXT(depth buffer size mismatch");

-         return;

-      }

-   }

-

-   if (readFb->Visual.samples > 0 &&

-       drawFb->Visual.samples > 0 &&

-       readFb->Visual.samples != drawFb->Visual.samples) {

-      _mesa_error(ctx, GL_INVALID_OPERATION,

-                  "glBlitFramebufferEXT(mismatched samples");

-      return;

-   }

-

-   /* extra checks for multisample copies... */

-   if (readFb->Visual.samples > 0 || drawFb->Visual.samples > 0) {

-      /* src and dest region sizes must be the same */

-      if (srcX1 - srcX0 != dstX1 - dstX0 ||

-          srcY1 - srcY0 != dstY1 - dstY0) {

-         _mesa_error(ctx, GL_INVALID_OPERATION,

-                "glBlitFramebufferEXT(bad src/dst multisample region sizes");

-         return;

-      }

-

-      /* color formats must match */

-      if (colorReadRb &&

-          colorDrawRb &&

-          colorReadRb->Format != colorDrawRb->Format) {

-         _mesa_error(ctx, GL_INVALID_OPERATION,

-                "glBlitFramebufferEXT(bad src/dst multisample pixel formats");

-         return;

-      }

-   }

-

-   if (!ctx->Extensions.EXT_framebuffer_blit) {

-      _mesa_error(ctx, GL_INVALID_OPERATION, "glBlitFramebufferEXT");

-      return;

-   }

-

-   /* Debug code */

-   if (DEBUG_BLIT) {

-      printf("glBlitFramebuffer(%d, %d, %d, %d,  %d, %d, %d, %d,"

-	     " 0x%x, 0x%x)\n",

-	     srcX0, srcY0, srcX1, srcY1,

-	     dstX0, dstY0, dstX1, dstY1,

-	     mask, filter);

-      if (colorReadRb) {

-         const struct gl_renderbuffer_attachment *att;

-

-         att = find_attachment(readFb, colorReadRb);

-         printf("  Src FBO %u  RB %u (%dx%d)  ",

-		readFb->Name, colorReadRb->Name,

-		colorReadRb->Width, colorReadRb->Height);

-         if (att && att->Texture) {

-            printf("Tex %u  tgt 0x%x  level %u  face %u",

-		   att->Texture->Name,

-		   att->Texture->Target,

-		   att->TextureLevel,

-		   att->CubeMapFace);

-         }

-         printf("\n");

-

-         att = find_attachment(drawFb, colorDrawRb);

-         printf("  Dst FBO %u  RB %u (%dx%d)  ",

-		drawFb->Name, colorDrawRb->Name,

-		colorDrawRb->Width, colorDrawRb->Height);

-         if (att && att->Texture) {

-            printf("Tex %u  tgt 0x%x  level %u  face %u",

-		   att->Texture->Name,

-		   att->Texture->Target,

-		   att->TextureLevel,

-		   att->CubeMapFace);

-         }

-         printf("\n");

-      }

-   }

-

-   ASSERT(ctx->Driver.BlitFramebuffer);

-   ctx->Driver.BlitFramebuffer(ctx,

-                               srcX0, srcY0, srcX1, srcY1,

-                               dstX0, dstY0, dstX1, dstY1,

-                               mask, filter);

-}

-#endif /* FEATURE_EXT_framebuffer_blit */

-

-#if FEATURE_ARB_geometry_shader4

-void GLAPIENTRY

-_mesa_FramebufferTextureARB(GLenum target, GLenum attachment,

-                            GLuint texture, GLint level)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_error(ctx, GL_INVALID_OPERATION,

-               "glFramebufferTextureARB "

-               "not implemented!");

-}

-

-void GLAPIENTRY

-_mesa_FramebufferTextureFaceARB(GLenum target, GLenum attachment,

-                                GLuint texture, GLint level, GLenum face)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_error(ctx, GL_INVALID_OPERATION,

-               "glFramebufferTextureFaceARB "

-               "not implemented!");

-}

-#endif /* FEATURE_ARB_geometry_shader4 */

+/*
+ * Mesa 3-D graphics library
+ * Version:  7.1
+ *
+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2009  VMware, Inc.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/*
+ * GL_EXT/ARB_framebuffer_object extensions
+ *
+ * Authors:
+ *   Brian Paul
+ */
+
+
+#include "buffers.h"
+#include "context.h"
+#include "enums.h"
+#include "fbobject.h"
+#include "formats.h"
+#include "framebuffer.h"
+#include "hash.h"
+#include "macros.h"
+#include "mfeatures.h"
+#include "mtypes.h"
+#include "renderbuffer.h"
+#include "state.h"
+#include "teximage.h"
+#include "texobj.h"
+
+
+/** Set this to 1 to help debug FBO incompleteness problems */
+#define DEBUG_FBO 0
+
+/** Set this to 1 to debug/log glBlitFramebuffer() calls */
+#define DEBUG_BLIT 0
+
+
+/**
+ * Notes:
+ *
+ * None of the GL_EXT_framebuffer_object functions are compiled into
+ * display lists.
+ */
+
+
+
+/*
+ * When glGenRender/FramebuffersEXT() is called we insert pointers to
+ * these placeholder objects into the hash table.
+ * Later, when the object ID is first bound, we replace the placeholder
+ * with the real frame/renderbuffer.
+ */
+static struct gl_framebuffer DummyFramebuffer;
+static struct gl_renderbuffer DummyRenderbuffer;
+
+/* We bind this framebuffer when applications pass a NULL
+ * drawable/surface in make current. */
+static struct gl_framebuffer IncompleteFramebuffer;
+
+
+#define IS_CUBE_FACE(TARGET) \
+   ((TARGET) >= GL_TEXTURE_CUBE_MAP_POSITIVE_X && \
+    (TARGET) <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z)
+
+
+static void
+delete_dummy_renderbuffer(struct gl_renderbuffer *rb)
+{
+   /* no op */
+}
+
+static void
+delete_dummy_framebuffer(struct gl_framebuffer *fb)
+{
+   /* no op */
+}
+
+
+void
+_mesa_init_fbobjects(struct gl_context *ctx)
+{
+   _glthread_INIT_MUTEX(DummyFramebuffer.Mutex);
+   _glthread_INIT_MUTEX(DummyRenderbuffer.Mutex);
+   _glthread_INIT_MUTEX(IncompleteFramebuffer.Mutex);
+   DummyFramebuffer.Delete = delete_dummy_framebuffer;
+   DummyRenderbuffer.Delete = delete_dummy_renderbuffer;
+   IncompleteFramebuffer.Delete = delete_dummy_framebuffer;
+}
+
+struct gl_framebuffer *
+_mesa_get_incomplete_framebuffer(void)
+{
+   return &IncompleteFramebuffer;
+}
+
+/**
+ * Helper routine for getting a gl_renderbuffer.
+ */
+struct gl_renderbuffer *
+_mesa_lookup_renderbuffer(struct gl_context *ctx, GLuint id)
+{
+   struct gl_renderbuffer *rb;
+
+   if (id == 0)
+      return NULL;
+
+   rb = (struct gl_renderbuffer *)
+      _mesa_HashLookup(ctx->Shared->RenderBuffers, id);
+   return rb;
+}
+
+
+/**
+ * Helper routine for getting a gl_framebuffer.
+ */
+struct gl_framebuffer *
+_mesa_lookup_framebuffer(struct gl_context *ctx, GLuint id)
+{
+   struct gl_framebuffer *fb;
+
+   if (id == 0)
+      return NULL;
+
+   fb = (struct gl_framebuffer *)
+      _mesa_HashLookup(ctx->Shared->FrameBuffers, id);
+   return fb;
+}
+
+
+/**
+ * Mark the given framebuffer as invalid.  This will force the
+ * test for framebuffer completeness to be done before the framebuffer
+ * is used.
+ */
+static void
+invalidate_framebuffer(struct gl_framebuffer *fb)
+{
+   fb->_Status = 0; /* "indeterminate" */
+}
+
+
+/**
+ * Given a GL_*_ATTACHMENTn token, return a pointer to the corresponding
+ * gl_renderbuffer_attachment object.
+ * This function is only used for user-created FB objects, not the
+ * default / window-system FB object.
+ * If \p attachment is GL_DEPTH_STENCIL_ATTACHMENT, return a pointer to
+ * the depth buffer attachment point.
+ */
+struct gl_renderbuffer_attachment *
+_mesa_get_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
+                     GLenum attachment)
+{
+   GLuint i;
+
+   assert(fb->Name > 0);
+
+   switch (attachment) {
+   case GL_COLOR_ATTACHMENT0_EXT:
+   case GL_COLOR_ATTACHMENT1_EXT:
+   case GL_COLOR_ATTACHMENT2_EXT:
+   case GL_COLOR_ATTACHMENT3_EXT:
+   case GL_COLOR_ATTACHMENT4_EXT:
+   case GL_COLOR_ATTACHMENT5_EXT:
+   case GL_COLOR_ATTACHMENT6_EXT:
+   case GL_COLOR_ATTACHMENT7_EXT:
+   case GL_COLOR_ATTACHMENT8_EXT:
+   case GL_COLOR_ATTACHMENT9_EXT:
+   case GL_COLOR_ATTACHMENT10_EXT:
+   case GL_COLOR_ATTACHMENT11_EXT:
+   case GL_COLOR_ATTACHMENT12_EXT:
+   case GL_COLOR_ATTACHMENT13_EXT:
+   case GL_COLOR_ATTACHMENT14_EXT:
+   case GL_COLOR_ATTACHMENT15_EXT:
+      i = attachment - GL_COLOR_ATTACHMENT0_EXT;
+      if (i >= ctx->Const.MaxColorAttachments) {
+	 return NULL;
+      }
+      return &fb->Attachment[BUFFER_COLOR0 + i];
+   case GL_DEPTH_STENCIL_ATTACHMENT:
+      /* fall-through */
+   case GL_DEPTH_BUFFER:
+      /* fall-through / new in GL 3.0 */
+   case GL_DEPTH_ATTACHMENT_EXT:
+      return &fb->Attachment[BUFFER_DEPTH];
+   case GL_STENCIL_BUFFER:
+      /* fall-through / new in GL 3.0 */
+   case GL_STENCIL_ATTACHMENT_EXT:
+      return &fb->Attachment[BUFFER_STENCIL];
+   default:
+      return NULL;
+   }
+}
+
+
+/**
+ * As above, but only used for getting attachments of the default /
+ * window-system framebuffer (not user-created framebuffer objects).
+ */
+static struct gl_renderbuffer_attachment *
+_mesa_get_fb0_attachment(struct gl_context *ctx, struct gl_framebuffer *fb,
+                         GLenum attachment)
+{
+   assert(fb->Name == 0);
+
+   switch (attachment) {
+   case GL_FRONT_LEFT:
+      return &fb->Attachment[BUFFER_FRONT_LEFT];
+   case GL_FRONT_RIGHT:
+      return &fb->Attachment[BUFFER_FRONT_RIGHT];
+   case GL_BACK_LEFT:
+      return &fb->Attachment[BUFFER_BACK_LEFT];
+   case GL_BACK_RIGHT:
+      return &fb->Attachment[BUFFER_BACK_RIGHT];
+   case GL_AUX0:
+      if (fb->Visual.numAuxBuffers == 1) {
+         return &fb->Attachment[BUFFER_AUX0];
+      }
+      return NULL;
+   case GL_DEPTH_BUFFER:
+      /* fall-through / new in GL 3.0 */
+   case GL_DEPTH_ATTACHMENT_EXT:
+      return &fb->Attachment[BUFFER_DEPTH];
+   case GL_STENCIL_BUFFER:
+      /* fall-through / new in GL 3.0 */
+   case GL_STENCIL_ATTACHMENT_EXT:
+      return &fb->Attachment[BUFFER_STENCIL];
+   default:
+      return NULL;
+   }
+}
+
+
+
+/**
+ * Remove any texture or renderbuffer attached to the given attachment
+ * point.  Update reference counts, etc.
+ */
+void
+_mesa_remove_attachment(struct gl_context *ctx,
+                        struct gl_renderbuffer_attachment *att)
+{
+   if (att->Type == GL_TEXTURE) {
+      ASSERT(att->Texture);
+      if (ctx->Driver.FinishRenderTexture) {
+         /* tell driver that we're done rendering to this texture. */
+         ctx->Driver.FinishRenderTexture(ctx, att);
+      }
+      _mesa_reference_texobj(&att->Texture, NULL); /* unbind */
+      ASSERT(!att->Texture);
+   }
+   if (att->Type == GL_TEXTURE || att->Type == GL_RENDERBUFFER_EXT) {
+      ASSERT(!att->Texture);
+      _mesa_reference_renderbuffer(&att->Renderbuffer, NULL); /* unbind */
+      ASSERT(!att->Renderbuffer);
+   }
+   att->Type = GL_NONE;
+   att->Complete = GL_TRUE;
+}
+
+
+/**
+ * Bind a texture object to an attachment point.
+ * The previous binding, if any, will be removed first.
+ */
+void
+_mesa_set_texture_attachment(struct gl_context *ctx,
+                             struct gl_framebuffer *fb,
+                             struct gl_renderbuffer_attachment *att,
+                             struct gl_texture_object *texObj,
+                             GLenum texTarget, GLuint level, GLuint zoffset)
+{
+   if (att->Texture == texObj) {
+      /* re-attaching same texture */
+      ASSERT(att->Type == GL_TEXTURE);
+      if (ctx->Driver.FinishRenderTexture)
+	 ctx->Driver.FinishRenderTexture(ctx, att);
+   }
+   else {
+      /* new attachment */
+      if (ctx->Driver.FinishRenderTexture && att->Texture)
+	 ctx->Driver.FinishRenderTexture(ctx, att);
+      _mesa_remove_attachment(ctx, att);
+      att->Type = GL_TEXTURE;
+      assert(!att->Texture);
+      _mesa_reference_texobj(&att->Texture, texObj);
+   }
+
+   /* always update these fields */
+   att->TextureLevel = level;
+   att->CubeMapFace = _mesa_tex_target_to_face(texTarget);
+   att->Zoffset = zoffset;
+   att->Complete = GL_FALSE;
+
+   if (att->Texture->Image[att->CubeMapFace][att->TextureLevel]) {
+      ctx->Driver.RenderTexture(ctx, fb, att);
+   }
+
+   invalidate_framebuffer(fb);
+}
+
+
+/**
+ * Bind a renderbuffer to an attachment point.
+ * The previous binding, if any, will be removed first.
+ */
+void
+_mesa_set_renderbuffer_attachment(struct gl_context *ctx,
+                                  struct gl_renderbuffer_attachment *att,
+                                  struct gl_renderbuffer *rb)
+{
+   /* XXX check if re-doing same attachment, exit early */
+   _mesa_remove_attachment(ctx, att);
+   att->Type = GL_RENDERBUFFER_EXT;
+   att->Texture = NULL; /* just to be safe */
+   att->Complete = GL_FALSE;
+   _mesa_reference_renderbuffer(&att->Renderbuffer, rb);
+}
+
+
+/**
+ * Fallback for ctx->Driver.FramebufferRenderbuffer()
+ * Attach a renderbuffer object to a framebuffer object.
+ */
+void
+_mesa_framebuffer_renderbuffer(struct gl_context *ctx,
+                               struct gl_framebuffer *fb,
+                               GLenum attachment, struct gl_renderbuffer *rb)
+{
+   struct gl_renderbuffer_attachment *att;
+
+   _glthread_LOCK_MUTEX(fb->Mutex);
+
+   att = _mesa_get_attachment(ctx, fb, attachment);
+   ASSERT(att);
+   if (rb) {
+      _mesa_set_renderbuffer_attachment(ctx, att, rb);
+      if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
+         /* do stencil attachment here (depth already done above) */
+         att = _mesa_get_attachment(ctx, fb, GL_STENCIL_ATTACHMENT_EXT);
+         assert(att);
+         _mesa_set_renderbuffer_attachment(ctx, att, rb);
+      }
+   }
+   else {
+      _mesa_remove_attachment(ctx, att);
+   }
+
+   invalidate_framebuffer(fb);
+
+   _glthread_UNLOCK_MUTEX(fb->Mutex);
+}
+
+
+/**
+ * Fallback for ctx->Driver.ValidateFramebuffer()
+ * Check if the renderbuffer's formats are supported by the software
+ * renderer.
+ * Drivers should probably override this.
+ */
+void
+_mesa_validate_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb)
+{
+   gl_buffer_index buf;
+   for (buf = 0; buf < BUFFER_COUNT; buf++) {
+      const struct gl_renderbuffer *rb = fb->Attachment[buf].Renderbuffer;
+      if (rb) {
+         switch (rb->_BaseFormat) {
+         case GL_ALPHA:
+         case GL_LUMINANCE_ALPHA:
+         case GL_LUMINANCE:
+         case GL_INTENSITY:
+         case GL_RED:
+         case GL_RG:
+            fb->_Status = GL_FRAMEBUFFER_UNSUPPORTED;
+            return;
+         default:
+            /* render buffer format is supported by software rendering */
+            ;
+         }
+      }
+   }
+}
+
+
+/**
+ * For debug only.
+ */
+static void
+att_incomplete(const char *msg)
+{
+#if DEBUG_FBO
+   _mesa_debug(NULL, "attachment incomplete: %s\n", msg);
+#else
+   (void) msg;
+#endif
+}
+
+
+/**
+ * For debug only.
+ */
+static void
+fbo_incomplete(const char *msg, int index)
+{
+#if DEBUG_FBO
+   _mesa_debug(NULL, "FBO Incomplete: %s [%d]\n", msg, index);
+#else
+   (void) msg;
+   (void) index;
+#endif
+}
+
+
+/**
+ * Is the given base format a legal format for a color renderbuffer?
+ */
+GLboolean
+_mesa_is_legal_color_format(const struct gl_context *ctx, GLenum baseFormat)
+{
+   switch (baseFormat) {
+   case GL_RGB:
+   case GL_RGBA:
+      return GL_TRUE;
+   case GL_LUMINANCE:
+   case GL_LUMINANCE_ALPHA:
+   case GL_INTENSITY:
+   case GL_ALPHA:
+      return ctx->Extensions.ARB_framebuffer_object;
+   case GL_RED:
+   case GL_RG:
+      return ctx->Extensions.ARB_texture_rg;
+   default:
+      return GL_FALSE;
+   }
+}
+
+
+/**
+ * Is the given base format a legal format for a depth/stencil renderbuffer?
+ */
+static GLboolean
+is_legal_depth_format(const struct gl_context *ctx, GLenum baseFormat)
+{
+   switch (baseFormat) {
+   case GL_DEPTH_COMPONENT:
+   case GL_DEPTH_STENCIL_EXT:
+      return GL_TRUE;
+   default:
+      return GL_FALSE;
+   }
+}
+
+
+/**
+ * Test if an attachment point is complete and update its Complete field.
+ * \param format if GL_COLOR, this is a color attachment point,
+ *               if GL_DEPTH, this is a depth component attachment point,
+ *               if GL_STENCIL, this is a stencil component attachment point.
+ */
+static void
+test_attachment_completeness(const struct gl_context *ctx, GLenum format,
+                             struct gl_renderbuffer_attachment *att)
+{
+   assert(format == GL_COLOR || format == GL_DEPTH || format == GL_STENCIL);
+
+   /* assume complete */
+   att->Complete = GL_TRUE;
+
+   /* Look for reasons why the attachment might be incomplete */
+   if (att->Type == GL_TEXTURE) {
+      const struct gl_texture_object *texObj = att->Texture;
+      struct gl_texture_image *texImage;
+      GLenum baseFormat;
+
+      if (!texObj) {
+         att_incomplete("no texobj");
+         att->Complete = GL_FALSE;
+         return;
+      }
+
+      texImage = texObj->Image[att->CubeMapFace][att->TextureLevel];
+      if (!texImage) {
+         att_incomplete("no teximage");
+         att->Complete = GL_FALSE;
+         return;
+      }
+      if (texImage->Width < 1 || texImage->Height < 1) {
+         att_incomplete("teximage width/height=0");
+         printf("texobj = %u\n", texObj->Name);
+         printf("level = %d\n", att->TextureLevel);
+         att->Complete = GL_FALSE;
+         return;
+      }
+      if (texObj->Target == GL_TEXTURE_3D && att->Zoffset >= texImage->Depth) {
+         att_incomplete("bad z offset");
+         att->Complete = GL_FALSE;
+         return;
+      }
+
+      baseFormat = _mesa_get_format_base_format(texImage->TexFormat);
+
+      if (format == GL_COLOR) {
+         if (!_mesa_is_legal_color_format(ctx, baseFormat)) {
+            att_incomplete("bad format");
+            att->Complete = GL_FALSE;
+            return;
+         }
+         if (_mesa_is_format_compressed(texImage->TexFormat)) {
+            att_incomplete("compressed internalformat");
+            att->Complete = GL_FALSE;
+            return;
+         }
+      }
+      else if (format == GL_DEPTH) {
+         if (baseFormat == GL_DEPTH_COMPONENT) {
+            /* OK */
+         }
+         else if (ctx->Extensions.EXT_packed_depth_stencil &&
+                  ctx->Extensions.ARB_depth_texture &&
+                  baseFormat == GL_DEPTH_STENCIL_EXT) {
+            /* OK */
+         }
+         else {
+            att->Complete = GL_FALSE;
+            att_incomplete("bad depth format");
+            return;
+         }
+      }
+      else {
+         ASSERT(format == GL_STENCIL);
+         if (ctx->Extensions.EXT_packed_depth_stencil &&
+             ctx->Extensions.ARB_depth_texture &&
+             baseFormat == GL_DEPTH_STENCIL_EXT) {
+            /* OK */
+         }
+         else {
+            /* no such thing as stencil-only textures */
+            att_incomplete("illegal stencil texture");
+            att->Complete = GL_FALSE;
+            return;
+         }
+      }
+   }
+   else if (att->Type == GL_RENDERBUFFER_EXT) {
+      const GLenum baseFormat =
+         _mesa_get_format_base_format(att->Renderbuffer->Format);
+
+      ASSERT(att->Renderbuffer);
+      if (!att->Renderbuffer->InternalFormat ||
+          att->Renderbuffer->Width < 1 ||
+          att->Renderbuffer->Height < 1) {
+         att_incomplete("0x0 renderbuffer");
+         att->Complete = GL_FALSE;
+         return;
+      }
+      if (format == GL_COLOR) {
+         if (!_mesa_is_legal_color_format(ctx, baseFormat)) {
+            att_incomplete("bad renderbuffer color format");
+            att->Complete = GL_FALSE;
+            return;
+         }
+      }
+      else if (format == GL_DEPTH) {
+         if (baseFormat == GL_DEPTH_COMPONENT) {
+            /* OK */
+         }
+         else if (ctx->Extensions.EXT_packed_depth_stencil &&
+                  baseFormat == GL_DEPTH_STENCIL_EXT) {
+            /* OK */
+         }
+         else {
+            att_incomplete("bad renderbuffer depth format");
+            att->Complete = GL_FALSE;
+            return;
+         }
+      }
+      else {
+         assert(format == GL_STENCIL);
+         if (baseFormat == GL_STENCIL_INDEX) {
+            /* OK */
+         }
+         else if (ctx->Extensions.EXT_packed_depth_stencil &&
+                  baseFormat == GL_DEPTH_STENCIL_EXT) {
+            /* OK */
+         }
+         else {
+            att->Complete = GL_FALSE;
+            att_incomplete("bad renderbuffer stencil format");
+            return;
+         }
+      }
+   }
+   else {
+      ASSERT(att->Type == GL_NONE);
+      /* complete */
+      return;
+   }
+}
+
+
+/**
+ * Test if the given framebuffer object is complete and update its
+ * Status field with the results.
+ * Calls the ctx->Driver.ValidateFramebuffer() function to allow the
+ * driver to make hardware-specific validation/completeness checks.
+ * Also update the framebuffer's Width and Height fields if the
+ * framebuffer is complete.
+ */
+void
+_mesa_test_framebuffer_completeness(struct gl_context *ctx,
+                                    struct gl_framebuffer *fb)
+{
+   GLuint numImages;
+   GLenum intFormat = GL_NONE; /* color buffers' internal format */
+   GLuint minWidth = ~0, minHeight = ~0, maxWidth = 0, maxHeight = 0;
+   GLint numSamples = -1;
+   GLint i;
+   GLuint j;
+
+   assert(fb->Name != 0);
+
+   numImages = 0;
+   fb->Width = 0;
+   fb->Height = 0;
+
+   /* Start at -2 to more easily loop over all attachment points.
+    *  -2: depth buffer
+    *  -1: stencil buffer
+    * >=0: color buffer
+    */
+   for (i = -2; i < (GLint) ctx->Const.MaxColorAttachments; i++) {
+      struct gl_renderbuffer_attachment *att;
+      GLenum f;
+      gl_format mesaFormat;
+
+      /*
+       * XXX for ARB_fbo, only check color buffers that are named by
+       * GL_READ_BUFFER and GL_DRAW_BUFFERi.
+       */
+
+      /* check for attachment completeness
+       */
+      if (i == -2) {
+         att = &fb->Attachment[BUFFER_DEPTH];
+         test_attachment_completeness(ctx, GL_DEPTH, att);
+         if (!att->Complete) {
+            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
+            fbo_incomplete("depth attachment incomplete", -1);
+            return;
+         }
+      }
+      else if (i == -1) {
+         att = &fb->Attachment[BUFFER_STENCIL];
+         test_attachment_completeness(ctx, GL_STENCIL, att);
+         if (!att->Complete) {
+            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
+            fbo_incomplete("stencil attachment incomplete", -1);
+            return;
+         }
+      }
+      else {
+         att = &fb->Attachment[BUFFER_COLOR0 + i];
+         test_attachment_completeness(ctx, GL_COLOR, att);
+         if (!att->Complete) {
+            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT;
+            fbo_incomplete("color attachment incomplete", i);
+            return;
+         }
+      }
+
+      /* get width, height, format of the renderbuffer/texture
+       */
+      if (att->Type == GL_TEXTURE) {
+         const struct gl_texture_image *texImg
+            = att->Texture->Image[att->CubeMapFace][att->TextureLevel];
+         minWidth = MIN2(minWidth, texImg->Width);
+         maxWidth = MAX2(maxWidth, texImg->Width);
+         minHeight = MIN2(minHeight, texImg->Height);
+         maxHeight = MAX2(maxHeight, texImg->Height);
+         f = texImg->_BaseFormat;
+         mesaFormat = texImg->TexFormat;
+         numImages++;
+         if (!_mesa_is_legal_color_format(ctx, f) &&
+             !is_legal_depth_format(ctx, f)) {
+            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT;
+            fbo_incomplete("texture attachment incomplete", -1);
+            return;
+         }
+      }
+      else if (att->Type == GL_RENDERBUFFER_EXT) {
+         minWidth = MIN2(minWidth, att->Renderbuffer->Width);
+         maxWidth = MAX2(minWidth, att->Renderbuffer->Width);
+         minHeight = MIN2(minHeight, att->Renderbuffer->Height);
+         maxHeight = MAX2(minHeight, att->Renderbuffer->Height);
+         f = att->Renderbuffer->InternalFormat;
+         mesaFormat = att->Renderbuffer->Format;
+         numImages++;
+      }
+      else {
+         assert(att->Type == GL_NONE);
+         continue;
+      }
+
+      if (numSamples < 0) {
+         /* first buffer */
+         numSamples = att->Renderbuffer->NumSamples;
+      }
+
+      /* check if integer color */
+      fb->_IntegerColor = _mesa_is_format_integer_color(mesaFormat);
+
+      /* Error-check width, height, format, samples
+       */
+      if (numImages == 1) {
+         /* save format, num samples */
+         if (i >= 0) {
+            intFormat = f;
+         }
+      }
+      else {
+         if (!ctx->Extensions.ARB_framebuffer_object) {
+            /* check that width, height, format are same */
+            if (minWidth != maxWidth || minHeight != maxHeight) {
+               fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT;
+               fbo_incomplete("width or height mismatch", -1);
+               return;
+            }
+            /* check that all color buffer have same format */
+            if (intFormat != GL_NONE && f != intFormat) {
+               fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT;
+               fbo_incomplete("format mismatch", -1);
+               return;
+            }
+         }
+         if (att->Renderbuffer &&
+             att->Renderbuffer->NumSamples != numSamples) {
+            fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE;
+            fbo_incomplete("inconsistant number of samples", i);
+            return;
+         }            
+
+      }
+   }
+
+#if FEATURE_GL
+   if (ctx->API == API_OPENGL) {
+      /* Check that all DrawBuffers are present */
+      for (j = 0; j < ctx->Const.MaxDrawBuffers; j++) {
+	 if (fb->ColorDrawBuffer[j] != GL_NONE) {
+	    const struct gl_renderbuffer_attachment *att
+	       = _mesa_get_attachment(ctx, fb, fb->ColorDrawBuffer[j]);
+	    assert(att);
+	    if (att->Type == GL_NONE) {
+	       fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT;
+	       fbo_incomplete("missing drawbuffer", j);
+	       return;
+	    }
+	 }
+      }
+
+      /* Check that the ReadBuffer is present */
+      if (fb->ColorReadBuffer != GL_NONE) {
+	 const struct gl_renderbuffer_attachment *att
+	    = _mesa_get_attachment(ctx, fb, fb->ColorReadBuffer);
+	 assert(att);
+	 if (att->Type == GL_NONE) {
+	    fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT;
+            fbo_incomplete("missing readbuffer", -1);
+	    return;
+	 }
+      }
+   }
+#else
+   (void) j;
+#endif
+
+   if (numImages == 0) {
+      fb->_Status = GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT;
+      fbo_incomplete("no attachments", -1);
+      return;
+   }
+
+   /* Provisionally set status = COMPLETE ... */
+   fb->_Status = GL_FRAMEBUFFER_COMPLETE_EXT;
+
+   /* ... but the driver may say the FB is incomplete.
+    * Drivers will most likely set the status to GL_FRAMEBUFFER_UNSUPPORTED
+    * if anything.
+    */
+   if (ctx->Driver.ValidateFramebuffer) {
+      ctx->Driver.ValidateFramebuffer(ctx, fb);
+      if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+         fbo_incomplete("driver marked FBO as incomplete", -1);
+      }
+   }
+
+   if (fb->_Status == GL_FRAMEBUFFER_COMPLETE_EXT) {
+      /*
+       * Note that if ARB_framebuffer_object is supported and the attached
+       * renderbuffers/textures are different sizes, the framebuffer
+       * width/height will be set to the smallest width/height.
+       */
+      fb->Width = minWidth;
+      fb->Height = minHeight;
+
+      /* finally, update the visual info for the framebuffer */
+      _mesa_update_framebuffer_visual(ctx, fb);
+   }
+}
+
+
+GLboolean GLAPIENTRY
+_mesa_IsRenderbufferEXT(GLuint renderbuffer)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+   if (renderbuffer) {
+      struct gl_renderbuffer *rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
+      if (rb != NULL && rb != &DummyRenderbuffer)
+         return GL_TRUE;
+   }
+   return GL_FALSE;
+}
+
+
+void GLAPIENTRY
+_mesa_BindRenderbufferEXT(GLenum target, GLuint renderbuffer)
+{
+   struct gl_renderbuffer *newRb;
+   GET_CURRENT_CONTEXT(ctx);
+
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (target != GL_RENDERBUFFER_EXT) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glBindRenderbufferEXT(target)");
+      return;
+   }
+
+   /* No need to flush here since the render buffer binding has no
+    * effect on rendering state.
+    */
+
+   if (renderbuffer) {
+      newRb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
+      if (newRb == &DummyRenderbuffer) {
+         /* ID was reserved, but no real renderbuffer object made yet */
+         newRb = NULL;
+      }
+      else if (!newRb && ctx->Extensions.ARB_framebuffer_object) {
+         /* All RB IDs must be Gen'd */
+         _mesa_error(ctx, GL_INVALID_OPERATION, "glBindRenderbuffer(buffer)");
+         return;
+      }
+
+      if (!newRb) {
+	 /* create new renderbuffer object */
+	 newRb = ctx->Driver.NewRenderbuffer(ctx, renderbuffer);
+	 if (!newRb) {
+	    _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindRenderbufferEXT");
+	    return;
+	 }
+         ASSERT(newRb->AllocStorage);
+         _mesa_HashInsert(ctx->Shared->RenderBuffers, renderbuffer, newRb);
+         newRb->RefCount = 1; /* referenced by hash table */
+      }
+   }
+   else {
+      newRb = NULL;
+   }
+
+   ASSERT(newRb != &DummyRenderbuffer);
+
+   _mesa_reference_renderbuffer(&ctx->CurrentRenderbuffer, newRb);
+}
+
+
+/**
+ * If the given renderbuffer is anywhere attached to the framebuffer, detach
+ * the renderbuffer.
+ * This is used when a renderbuffer object is deleted.
+ * The spec calls for unbinding.
+ */
+static void
+detach_renderbuffer(struct gl_context *ctx,
+                    struct gl_framebuffer *fb,
+                    struct gl_renderbuffer *rb)
+{
+   GLuint i;
+   for (i = 0; i < BUFFER_COUNT; i++) {
+      if (fb->Attachment[i].Renderbuffer == rb) {
+         _mesa_remove_attachment(ctx, &fb->Attachment[i]);
+      }
+   }
+   invalidate_framebuffer(fb);
+}
+
+
+void GLAPIENTRY
+_mesa_DeleteRenderbuffersEXT(GLsizei n, const GLuint *renderbuffers)
+{
+   GLint i;
+   GET_CURRENT_CONTEXT(ctx);
+
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+   FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+   for (i = 0; i < n; i++) {
+      if (renderbuffers[i] > 0) {
+	 struct gl_renderbuffer *rb;
+	 rb = _mesa_lookup_renderbuffer(ctx, renderbuffers[i]);
+	 if (rb) {
+            /* check if deleting currently bound renderbuffer object */
+            if (rb == ctx->CurrentRenderbuffer) {
+               /* bind default */
+               ASSERT(rb->RefCount >= 2);
+               _mesa_BindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
+            }
+
+            if (ctx->DrawBuffer->Name) {
+               detach_renderbuffer(ctx, ctx->DrawBuffer, rb);
+            }
+            if (ctx->ReadBuffer->Name && ctx->ReadBuffer != ctx->DrawBuffer) {
+               detach_renderbuffer(ctx, ctx->ReadBuffer, rb);
+            }
+
+	    /* Remove from hash table immediately, to free the ID.
+             * But the object will not be freed until it's no longer
+             * referenced anywhere else.
+             */
+	    _mesa_HashRemove(ctx->Shared->RenderBuffers, renderbuffers[i]);
+
+            if (rb != &DummyRenderbuffer) {
+               /* no longer referenced by hash table */
+               _mesa_reference_renderbuffer(&rb, NULL);
+	    }
+	 }
+      }
+   }
+}
+
+
+void GLAPIENTRY
+_mesa_GenRenderbuffersEXT(GLsizei n, GLuint *renderbuffers)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLuint first;
+   GLint i;
+
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (n < 0) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glGenRenderbuffersEXT(n)");
+      return;
+   }
+
+   if (!renderbuffers)
+      return;
+
+   first = _mesa_HashFindFreeKeyBlock(ctx->Shared->RenderBuffers, n);
+
+   for (i = 0; i < n; i++) {
+      GLuint name = first + i;
+      renderbuffers[i] = name;
+      /* insert dummy placeholder into hash table */
+      _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
+      _mesa_HashInsert(ctx->Shared->RenderBuffers, name, &DummyRenderbuffer);
+      _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
+   }
+}
+
+
+/**
+ * Given an internal format token for a render buffer, return the
+ * corresponding base format (one of GL_RGB, GL_RGBA, GL_STENCIL_INDEX,
+ * GL_DEPTH_COMPONENT, GL_DEPTH_STENCIL_EXT, GL_ALPHA, GL_LUMINANCE,
+ * GL_LUMINANCE_ALPHA, GL_INTENSITY, etc).
+ *
+ * This is similar to _mesa_base_tex_format() but the set of valid
+ * internal formats is different.
+ *
+ * Note that even if a format is determined to be legal here, validation
+ * of the FBO may fail if the format is not supported by the driver/GPU.
+ *
+ * \param internalFormat  as passed to glRenderbufferStorage()
+ * \return the base internal format, or 0 if internalFormat is illegal
+ */
+GLenum
+_mesa_base_fbo_format(struct gl_context *ctx, GLenum internalFormat)
+{
+   /*
+    * Notes: some formats such as alpha, luminance, etc. were added
+    * with GL_ARB_framebuffer_object.
+    */
+   switch (internalFormat) {
+   case GL_ALPHA:
+   case GL_ALPHA4:
+   case GL_ALPHA8:
+   case GL_ALPHA12:
+   case GL_ALPHA16:
+      return ctx->Extensions.ARB_framebuffer_object ? GL_ALPHA : 0;
+   case GL_LUMINANCE:
+   case GL_LUMINANCE4:
+   case GL_LUMINANCE8:
+   case GL_LUMINANCE12:
+   case GL_LUMINANCE16:
+      return ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE : 0;
+   case GL_LUMINANCE_ALPHA:
+   case GL_LUMINANCE4_ALPHA4:
+   case GL_LUMINANCE6_ALPHA2:
+   case GL_LUMINANCE8_ALPHA8:
+   case GL_LUMINANCE12_ALPHA4:
+   case GL_LUMINANCE12_ALPHA12:
+   case GL_LUMINANCE16_ALPHA16:
+      return ctx->Extensions.ARB_framebuffer_object ? GL_LUMINANCE_ALPHA : 0;
+   case GL_INTENSITY:
+   case GL_INTENSITY4:
+   case GL_INTENSITY8:
+   case GL_INTENSITY12:
+   case GL_INTENSITY16:
+      return ctx->Extensions.ARB_framebuffer_object ? GL_INTENSITY : 0;
+   case GL_RGB:
+   case GL_R3_G3_B2:
+   case GL_RGB4:
+   case GL_RGB5:
+   case GL_RGB8:
+   case GL_RGB10:
+   case GL_RGB12:
+   case GL_RGB16:
+   case GL_SRGB8_EXT:
+      return GL_RGB;
+   case GL_RGBA:
+   case GL_RGBA2:
+   case GL_RGBA4:
+   case GL_RGB5_A1:
+   case GL_RGBA8:
+   case GL_RGB10_A2:
+   case GL_RGBA12:
+   case GL_RGBA16:
+   case GL_RGBA16_SNORM:
+   case GL_SRGB8_ALPHA8_EXT:
+      return GL_RGBA;
+   case GL_STENCIL_INDEX:
+   case GL_STENCIL_INDEX1_EXT:
+   case GL_STENCIL_INDEX4_EXT:
+   case GL_STENCIL_INDEX8_EXT:
+   case GL_STENCIL_INDEX16_EXT:
+      return GL_STENCIL_INDEX;
+   case GL_DEPTH_COMPONENT:
+   case GL_DEPTH_COMPONENT16:
+   case GL_DEPTH_COMPONENT24:
+   case GL_DEPTH_COMPONENT32:
+      return GL_DEPTH_COMPONENT;
+   case GL_DEPTH_STENCIL_EXT:
+   case GL_DEPTH24_STENCIL8_EXT:
+      if (ctx->Extensions.EXT_packed_depth_stencil)
+         return GL_DEPTH_STENCIL_EXT;
+      else
+         return 0;
+   case GL_RED:
+   case GL_R8:
+   case GL_R16:
+      return ctx->Extensions.ARB_texture_rg ? GL_RED : 0;
+   case GL_RG:
+   case GL_RG8:
+   case GL_RG16:
+      return ctx->Extensions.ARB_texture_rg ? GL_RG : 0;
+   /* XXX add floating point and integer formats eventually */
+   default:
+      return 0;
+   }
+}
+
+
+/** sentinal value, see below */
+#define NO_SAMPLES 1000
+
+
+/**
+ * Helper function used by _mesa_RenderbufferStorageEXT() and 
+ * _mesa_RenderbufferStorageMultisample().
+ * samples will be NO_SAMPLES if called by _mesa_RenderbufferStorageEXT().
+ */
+static void
+renderbuffer_storage(GLenum target, GLenum internalFormat,
+                     GLsizei width, GLsizei height, GLsizei samples)
+{
+   const char *func = samples == NO_SAMPLES ?
+      "glRenderbufferStorage" : "RenderbufferStorageMultisample";
+   struct gl_renderbuffer *rb;
+   GLenum baseFormat;
+   GET_CURRENT_CONTEXT(ctx);
+
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (target != GL_RENDERBUFFER_EXT) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", func);
+      return;
+   }
+
+   baseFormat = _mesa_base_fbo_format(ctx, internalFormat);
+   if (baseFormat == 0) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "%s(internalFormat)", func);
+      return;
+   }
+
+   if (width < 1 || width > (GLsizei) ctx->Const.MaxRenderbufferSize) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "%s(width)", func);
+      return;
+   }
+
+   if (height < 1 || height > (GLsizei) ctx->Const.MaxRenderbufferSize) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "%s(height)", func);
+      return;
+   }
+
+   if (samples == NO_SAMPLES) {
+      /* NumSamples == 0 indicates non-multisampling */
+      samples = 0;
+   }
+   else if (samples > (GLsizei) ctx->Const.MaxSamples) {
+      /* note: driver may choose to use more samples than what's requested */
+      _mesa_error(ctx, GL_INVALID_VALUE, "%s(samples)", func);
+      return;
+   }
+
+   rb = ctx->CurrentRenderbuffer;
+   if (!rb) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "%s", func);
+      return;
+   }
+
+   FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+   if (rb->InternalFormat == internalFormat &&
+       rb->Width == (GLuint) width &&
+       rb->Height == (GLuint) height) {
+      /* no change in allocation needed */
+      return;
+   }
+
+   /* These MUST get set by the AllocStorage func */
+   rb->Format = MESA_FORMAT_NONE;
+   rb->NumSamples = samples;
+
+   /* Now allocate the storage */
+   ASSERT(rb->AllocStorage);
+   if (rb->AllocStorage(ctx, rb, internalFormat, width, height)) {
+      /* No error - check/set fields now */
+      assert(rb->Format != MESA_FORMAT_NONE);
+      assert(rb->Width == (GLuint) width);
+      assert(rb->Height == (GLuint) height);
+      rb->InternalFormat = internalFormat;
+      rb->_BaseFormat = baseFormat;
+      assert(rb->_BaseFormat != 0);
+   }
+   else {
+      /* Probably ran out of memory - clear the fields */
+      rb->Width = 0;
+      rb->Height = 0;
+      rb->Format = MESA_FORMAT_NONE;
+      rb->InternalFormat = GL_NONE;
+      rb->_BaseFormat = GL_NONE;
+      rb->NumSamples = 0;
+   }
+
+   /*
+   test_framebuffer_completeness(ctx, fb);
+   */
+   /* XXX if this renderbuffer is attached anywhere, invalidate attachment
+    * points???
+    */
+}
+
+
+#if FEATURE_OES_EGL_image
+void GLAPIENTRY
+_mesa_EGLImageTargetRenderbufferStorageOES(GLenum target, GLeglImageOES image)
+{
+   struct gl_renderbuffer *rb;
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (!ctx->Extensions.OES_EGL_image) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glEGLImageTargetRenderbufferStorageOES(unsupported)");
+      return;
+   }
+
+   if (target != GL_RENDERBUFFER) {
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "EGLImageTargetRenderbufferStorageOES");
+      return;
+   }
+
+   rb = ctx->CurrentRenderbuffer;
+   if (!rb) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "EGLImageTargetRenderbufferStorageOES");
+      return;
+   }
+
+   FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+   ctx->Driver.EGLImageTargetRenderbufferStorage(ctx, rb, image);
+}
+#endif
+
+
+/**
+ * Helper function for _mesa_GetRenderbufferParameterivEXT() and
+ * _mesa_GetFramebufferAttachmentParameterivEXT()
+ * We have to be careful to respect the base format.  For example, if a
+ * renderbuffer/texture was created with internalFormat=GL_RGB but the
+ * driver actually chose a GL_RGBA format, when the user queries ALPHA_SIZE
+ * we need to return zero.
+ */
+static GLint
+get_component_bits(GLenum pname, GLenum baseFormat, gl_format format)
+{
+   switch (pname) {
+   case GL_RENDERBUFFER_RED_SIZE_EXT:
+   case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
+      if (baseFormat == GL_RGB || baseFormat == GL_RGBA ||
+	  baseFormat == GL_RG || baseFormat == GL_RED)
+         return _mesa_get_format_bits(format, pname);
+      else
+         return 0;
+   case GL_RENDERBUFFER_GREEN_SIZE_EXT:
+   case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
+      if (baseFormat == GL_RGB || baseFormat == GL_RGBA || baseFormat == GL_RG)
+         return _mesa_get_format_bits(format, pname);
+      else
+         return 0;
+   case GL_RENDERBUFFER_BLUE_SIZE_EXT:
+   case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
+      if (baseFormat == GL_RGB || baseFormat == GL_RGBA)
+         return _mesa_get_format_bits(format, pname);
+      else
+         return 0;
+   case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
+   case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
+      if (baseFormat == GL_RGBA || baseFormat == GL_ALPHA ||
+	  baseFormat == GL_LUMINANCE_ALPHA)
+         return _mesa_get_format_bits(format, pname);
+      else
+         return 0;
+   case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
+   case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
+      if (baseFormat == GL_DEPTH_COMPONENT || baseFormat == GL_DEPTH_STENCIL)
+         return _mesa_get_format_bits(format, pname);
+      else
+         return 0;
+   case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
+   case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
+      if (baseFormat == GL_STENCIL_INDEX || baseFormat == GL_DEPTH_STENCIL)
+         return _mesa_get_format_bits(format, pname);
+      else
+         return 0;
+   default:
+      return 0;
+   }
+}
+
+
+
+void GLAPIENTRY
+_mesa_RenderbufferStorageEXT(GLenum target, GLenum internalFormat,
+                             GLsizei width, GLsizei height)
+{
+   /* GL_ARB_fbo says calling this function is equivalent to calling
+    * glRenderbufferStorageMultisample() with samples=0.  We pass in
+    * a token value here just for error reporting purposes.
+    */
+   renderbuffer_storage(target, internalFormat, width, height, NO_SAMPLES);
+}
+
+
+void GLAPIENTRY
+_mesa_RenderbufferStorageMultisample(GLenum target, GLsizei samples,
+                                     GLenum internalFormat,
+                                     GLsizei width, GLsizei height)
+{
+   renderbuffer_storage(target, internalFormat, width, height, samples);
+}
+
+
+/**
+ * OpenGL ES version of glRenderBufferStorage.
+ */
+void GLAPIENTRY
+_es_RenderbufferStorageEXT(GLenum target, GLenum internalFormat,
+			   GLsizei width, GLsizei height)
+{
+   switch (internalFormat) {
+   case GL_RGB565:
+      /* XXX this confuses GL_RENDERBUFFER_INTERNAL_FORMAT_OES */
+      /* choose a closest format */
+      internalFormat = GL_RGB5;
+      break;
+   default:
+      break;
+   }
+
+   renderbuffer_storage(target, internalFormat, width, height, 0);
+}
+
+
+void GLAPIENTRY
+_mesa_GetRenderbufferParameterivEXT(GLenum target, GLenum pname, GLint *params)
+{
+   struct gl_renderbuffer *rb;
+   GET_CURRENT_CONTEXT(ctx);
+
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (target != GL_RENDERBUFFER_EXT) {
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "glGetRenderbufferParameterivEXT(target)");
+      return;
+   }
+
+   rb = ctx->CurrentRenderbuffer;
+   if (!rb) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glGetRenderbufferParameterivEXT");
+      return;
+   }
+
+   /* No need to flush here since we're just quering state which is
+    * not effected by rendering.
+    */
+
+   switch (pname) {
+   case GL_RENDERBUFFER_WIDTH_EXT:
+      *params = rb->Width;
+      return;
+   case GL_RENDERBUFFER_HEIGHT_EXT:
+      *params = rb->Height;
+      return;
+   case GL_RENDERBUFFER_INTERNAL_FORMAT_EXT:
+      *params = rb->InternalFormat;
+      return;
+   case GL_RENDERBUFFER_RED_SIZE_EXT:
+   case GL_RENDERBUFFER_GREEN_SIZE_EXT:
+   case GL_RENDERBUFFER_BLUE_SIZE_EXT:
+   case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
+   case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
+   case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
+      *params = get_component_bits(pname, rb->_BaseFormat, rb->Format);
+      break;
+   case GL_RENDERBUFFER_SAMPLES:
+      if (ctx->Extensions.ARB_framebuffer_object) {
+         *params = rb->NumSamples;
+         break;
+      }
+      /* fallthrough */
+   default:
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "glGetRenderbufferParameterivEXT(target)");
+      return;
+   }
+}
+
+
+GLboolean GLAPIENTRY
+_mesa_IsFramebufferEXT(GLuint framebuffer)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+   if (framebuffer) {
+      struct gl_framebuffer *rb = _mesa_lookup_framebuffer(ctx, framebuffer);
+      if (rb != NULL && rb != &DummyFramebuffer)
+         return GL_TRUE;
+   }
+   return GL_FALSE;
+}
+
+
+/**
+ * Check if any of the attachments of the given framebuffer are textures
+ * (render to texture).  Call ctx->Driver.RenderTexture() for such
+ * attachments.
+ */
+static void
+check_begin_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)
+{
+   GLuint i;
+   ASSERT(ctx->Driver.RenderTexture);
+
+   if (fb->Name == 0)
+      return; /* can't render to texture with winsys framebuffers */
+
+   for (i = 0; i < BUFFER_COUNT; i++) {
+      struct gl_renderbuffer_attachment *att = fb->Attachment + i;
+      struct gl_texture_object *texObj = att->Texture;
+      if (texObj
+          && texObj->Image[att->CubeMapFace][att->TextureLevel]) {
+         ctx->Driver.RenderTexture(ctx, fb, att);
+      }
+   }
+}
+
+
+/**
+ * Examine all the framebuffer's attachments to see if any are textures.
+ * If so, call ctx->Driver.FinishRenderTexture() for each texture to
+ * notify the device driver that the texture image may have changed.
+ */
+static void
+check_end_texture_render(struct gl_context *ctx, struct gl_framebuffer *fb)
+{
+   if (fb->Name == 0)
+      return; /* can't render to texture with winsys framebuffers */
+
+   if (ctx->Driver.FinishRenderTexture) {
+      GLuint i;
+      for (i = 0; i < BUFFER_COUNT; i++) {
+         struct gl_renderbuffer_attachment *att = fb->Attachment + i;
+         if (att->Texture && att->Renderbuffer) {
+            ctx->Driver.FinishRenderTexture(ctx, att);
+         }
+      }
+   }
+}
+
+
+void GLAPIENTRY
+_mesa_BindFramebufferEXT(GLenum target, GLuint framebuffer)
+{
+   struct gl_framebuffer *newDrawFb, *newReadFb;
+   struct gl_framebuffer *oldDrawFb, *oldReadFb;
+   GLboolean bindReadBuf, bindDrawBuf;
+   GET_CURRENT_CONTEXT(ctx);
+
+#ifdef DEBUG
+   if (ctx->Extensions.ARB_framebuffer_object) {
+      ASSERT(ctx->Extensions.EXT_framebuffer_object);
+      ASSERT(ctx->Extensions.EXT_framebuffer_blit);
+   }
+#endif
+
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (!ctx->Extensions.EXT_framebuffer_object) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glBindFramebufferEXT(unsupported)");
+      return;
+   }
+
+   switch (target) {
+#if FEATURE_EXT_framebuffer_blit
+   case GL_DRAW_FRAMEBUFFER_EXT:
+      if (!ctx->Extensions.EXT_framebuffer_blit) {
+         _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
+         return;
+      }
+      bindDrawBuf = GL_TRUE;
+      bindReadBuf = GL_FALSE;
+      break;
+   case GL_READ_FRAMEBUFFER_EXT:
+      if (!ctx->Extensions.EXT_framebuffer_blit) {
+         _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
+         return;
+      }
+      bindDrawBuf = GL_FALSE;
+      bindReadBuf = GL_TRUE;
+      break;
+#endif
+   case GL_FRAMEBUFFER_EXT:
+      bindDrawBuf = GL_TRUE;
+      bindReadBuf = GL_TRUE;
+      break;
+   default:
+      _mesa_error(ctx, GL_INVALID_ENUM, "glBindFramebufferEXT(target)");
+      return;
+   }
+
+   if (framebuffer) {
+      /* Binding a user-created framebuffer object */
+      newDrawFb = _mesa_lookup_framebuffer(ctx, framebuffer);
+      if (newDrawFb == &DummyFramebuffer) {
+         /* ID was reserved, but no real framebuffer object made yet */
+         newDrawFb = NULL;
+      }
+      else if (!newDrawFb && ctx->Extensions.ARB_framebuffer_object) {
+         /* All FBO IDs must be Gen'd */
+         _mesa_error(ctx, GL_INVALID_OPERATION, "glBindFramebuffer(buffer)");
+         return;
+      }
+
+      if (!newDrawFb) {
+	 /* create new framebuffer object */
+	 newDrawFb = ctx->Driver.NewFramebuffer(ctx, framebuffer);
+	 if (!newDrawFb) {
+	    _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindFramebufferEXT");
+	    return;
+	 }
+         _mesa_HashInsert(ctx->Shared->FrameBuffers, framebuffer, newDrawFb);
+      }
+      newReadFb = newDrawFb;
+   }
+   else {
+      /* Binding the window system framebuffer (which was originally set
+       * with MakeCurrent).
+       */
+      newDrawFb = ctx->WinSysDrawBuffer;
+      newReadFb = ctx->WinSysReadBuffer;
+   }
+
+   ASSERT(newDrawFb);
+   ASSERT(newDrawFb != &DummyFramebuffer);
+
+   /* save pointers to current/old framebuffers */
+   oldDrawFb = ctx->DrawBuffer;
+   oldReadFb = ctx->ReadBuffer;
+
+   /* check if really changing bindings */
+   if (oldDrawFb == newDrawFb)
+      bindDrawBuf = GL_FALSE;
+   if (oldReadFb == newReadFb)
+      bindReadBuf = GL_FALSE;
+
+   /*
+    * OK, now bind the new Draw/Read framebuffers, if they're changing.
+    *
+    * We also check if we're beginning and/or ending render-to-texture.
+    * When a framebuffer with texture attachments is unbound, call
+    * ctx->Driver.FinishRenderTexture().
+    * When a framebuffer with texture attachments is bound, call
+    * ctx->Driver.RenderTexture().
+    *
+    * Note that if the ReadBuffer has texture attachments we don't consider
+    * that a render-to-texture case.
+    */
+   if (bindReadBuf) {
+      FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+      /* check if old readbuffer was render-to-texture */
+      check_end_texture_render(ctx, oldReadFb);
+
+      _mesa_reference_framebuffer(&ctx->ReadBuffer, newReadFb);
+   }
+
+   if (bindDrawBuf) {
+      FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+      /* check if old read/draw buffers were render-to-texture */
+      if (!bindReadBuf)
+         check_end_texture_render(ctx, oldReadFb);
+
+      if (oldDrawFb != oldReadFb)
+         check_end_texture_render(ctx, oldDrawFb);
+
+      /* check if newly bound framebuffer has any texture attachments */
+      check_begin_texture_render(ctx, newDrawFb);
+
+      _mesa_reference_framebuffer(&ctx->DrawBuffer, newDrawFb);
+   }
+
+   if ((bindDrawBuf || bindReadBuf) && ctx->Driver.BindFramebuffer) {
+      ctx->Driver.BindFramebuffer(ctx, target, newDrawFb, newReadFb);
+   }
+}
+
+
+void GLAPIENTRY
+_mesa_DeleteFramebuffersEXT(GLsizei n, const GLuint *framebuffers)
+{
+   GLint i;
+   GET_CURRENT_CONTEXT(ctx);
+
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+   FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+   for (i = 0; i < n; i++) {
+      if (framebuffers[i] > 0) {
+	 struct gl_framebuffer *fb;
+	 fb = _mesa_lookup_framebuffer(ctx, framebuffers[i]);
+	 if (fb) {
+            ASSERT(fb == &DummyFramebuffer || fb->Name == framebuffers[i]);
+
+            /* check if deleting currently bound framebuffer object */
+            if (ctx->Extensions.EXT_framebuffer_blit) {
+               /* separate draw/read binding points */
+               if (fb == ctx->DrawBuffer) {
+                  /* bind default */
+                  ASSERT(fb->RefCount >= 2);
+                  _mesa_BindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0);
+               }
+               if (fb == ctx->ReadBuffer) {
+                  /* bind default */
+                  ASSERT(fb->RefCount >= 2);
+                  _mesa_BindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, 0);
+               }
+            }
+            else {
+               /* only one binding point for read/draw buffers */
+               if (fb == ctx->DrawBuffer || fb == ctx->ReadBuffer) {
+                  /* bind default */
+                  ASSERT(fb->RefCount >= 2);
+                  _mesa_BindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
+               }    
+            }
+
+	    /* remove from hash table immediately, to free the ID */
+	    _mesa_HashRemove(ctx->Shared->FrameBuffers, framebuffers[i]);
+
+            if (fb != &DummyFramebuffer) {
+               /* But the object will not be freed until it's no longer
+                * bound in any context.
+                */
+               _mesa_reference_framebuffer(&fb, NULL);
+	    }
+	 }
+      }
+   }
+}
+
+
+void GLAPIENTRY
+_mesa_GenFramebuffersEXT(GLsizei n, GLuint *framebuffers)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLuint first;
+   GLint i;
+
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (n < 0) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glGenFramebuffersEXT(n)");
+      return;
+   }
+
+   if (!framebuffers)
+      return;
+
+   first = _mesa_HashFindFreeKeyBlock(ctx->Shared->FrameBuffers, n);
+
+   for (i = 0; i < n; i++) {
+      GLuint name = first + i;
+      framebuffers[i] = name;
+      /* insert dummy placeholder into hash table */
+      _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
+      _mesa_HashInsert(ctx->Shared->FrameBuffers, name, &DummyFramebuffer);
+      _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
+   }
+}
+
+
+
+GLenum GLAPIENTRY
+_mesa_CheckFramebufferStatusEXT(GLenum target)
+{
+   struct gl_framebuffer *buffer;
+   GET_CURRENT_CONTEXT(ctx);
+
+   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);
+
+   switch (target) {
+#if FEATURE_EXT_framebuffer_blit
+   case GL_DRAW_FRAMEBUFFER_EXT:
+      if (!ctx->Extensions.EXT_framebuffer_blit) {
+         _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)");
+         return 0;
+      }
+      buffer = ctx->DrawBuffer;
+      break;
+   case GL_READ_FRAMEBUFFER_EXT:
+      if (!ctx->Extensions.EXT_framebuffer_blit) {
+         _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)");
+         return 0;
+      }
+      buffer = ctx->ReadBuffer;
+      break;
+#endif
+   case GL_FRAMEBUFFER_EXT:
+      buffer = ctx->DrawBuffer;
+      break;
+   default:
+      _mesa_error(ctx, GL_INVALID_ENUM, "glCheckFramebufferStatus(target)");
+      return 0; /* formerly GL_FRAMEBUFFER_STATUS_ERROR_EXT */
+   }
+
+   if (buffer->Name == 0) {
+      /* The window system / default framebuffer is always complete */
+      return GL_FRAMEBUFFER_COMPLETE_EXT;
+   }
+
+   /* No need to flush here */
+
+   if (buffer->_Status != GL_FRAMEBUFFER_COMPLETE) {
+      _mesa_test_framebuffer_completeness(ctx, buffer);
+   }
+
+   return buffer->_Status;
+}
+
+
+
+/**
+ * Common code called by glFramebufferTexture1D/2D/3DEXT().
+ */
+static void
+framebuffer_texture(struct gl_context *ctx, const char *caller, GLenum target, 
+                    GLenum attachment, GLenum textarget, GLuint texture,
+                    GLint level, GLint zoffset)
+{
+   struct gl_renderbuffer_attachment *att;
+   struct gl_texture_object *texObj = NULL;
+   struct gl_framebuffer *fb;
+   GLboolean error = GL_FALSE;
+
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   switch (target) {
+   case GL_READ_FRAMEBUFFER_EXT:
+      error = !ctx->Extensions.EXT_framebuffer_blit;
+      fb = ctx->ReadBuffer;
+      break;
+   case GL_DRAW_FRAMEBUFFER_EXT:
+      error = !ctx->Extensions.EXT_framebuffer_blit;
+      /* fall-through */
+   case GL_FRAMEBUFFER_EXT:
+      fb = ctx->DrawBuffer;
+      break;
+   default:
+      error = GL_TRUE;
+   }
+
+   if (error) {
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "glFramebufferTexture%sEXT(target=0x%x)", caller, target);
+      return;
+   }
+
+   ASSERT(fb);
+
+   /* check framebuffer binding */
+   if (fb->Name == 0) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glFramebufferTexture%sEXT", caller);
+      return;
+   }
+
+
+   /* The textarget, level, and zoffset parameters are only validated if
+    * texture is non-zero.
+    */
+   if (texture) {
+      GLboolean err = GL_TRUE;
+
+      texObj = _mesa_lookup_texture(ctx, texture);
+      if (texObj != NULL) {
+         if (textarget == 0) {
+            /* XXX what's the purpose of this? */
+            err = (texObj->Target != GL_TEXTURE_3D) &&
+                (texObj->Target != GL_TEXTURE_1D_ARRAY_EXT) &&
+                (texObj->Target != GL_TEXTURE_2D_ARRAY_EXT);
+         }
+         else {
+            err = (texObj->Target == GL_TEXTURE_CUBE_MAP)
+                ? !IS_CUBE_FACE(textarget)
+                : (texObj->Target != textarget);
+         }
+      }
+      else {
+         /* can't render to a non-existant texture */
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glFramebufferTexture%sEXT(non existant texture)",
+                     caller);
+         return;
+      }
+
+      if (err) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glFramebufferTexture%sEXT(texture target mismatch)",
+                     caller);
+         return;
+      }
+
+      if (texObj->Target == GL_TEXTURE_3D) {
+         const GLint maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
+         if (zoffset < 0 || zoffset >= maxSize) {
+            _mesa_error(ctx, GL_INVALID_VALUE,
+                        "glFramebufferTexture%sEXT(zoffset)", caller);
+            return;
+         }
+      }
+      else if ((texObj->Target == GL_TEXTURE_1D_ARRAY_EXT) ||
+               (texObj->Target == GL_TEXTURE_2D_ARRAY_EXT)) {
+         if (zoffset < 0 || zoffset >= ctx->Const.MaxArrayTextureLayers) {
+            _mesa_error(ctx, GL_INVALID_VALUE,
+                        "glFramebufferTexture%sEXT(layer)", caller);
+            return;
+         }
+      }
+
+      if ((level < 0) || 
+          (level >= _mesa_max_texture_levels(ctx, texObj->Target))) {
+         _mesa_error(ctx, GL_INVALID_VALUE,
+                     "glFramebufferTexture%sEXT(level)", caller);
+         return;
+      }
+   }
+
+   att = _mesa_get_attachment(ctx, fb, attachment);
+   if (att == NULL) {
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "glFramebufferTexture%sEXT(attachment)", caller);
+      return;
+   }
+
+   FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+   _glthread_LOCK_MUTEX(fb->Mutex);
+   if (texObj) {
+      _mesa_set_texture_attachment(ctx, fb, att, texObj, textarget,
+                                   level, zoffset);
+      /* Set the render-to-texture flag.  We'll check this flag in
+       * glTexImage() and friends to determine if we need to revalidate
+       * any FBOs that might be rendering into this texture.
+       * This flag never gets cleared since it's non-trivial to determine
+       * when all FBOs might be done rendering to this texture.  That's OK
+       * though since it's uncommon to render to a texture then repeatedly
+       * call glTexImage() to change images in the texture.
+       */
+      texObj->_RenderToTexture = GL_TRUE;
+   }
+   else {
+      _mesa_remove_attachment(ctx, att);
+   }
+
+   invalidate_framebuffer(fb);
+
+   _glthread_UNLOCK_MUTEX(fb->Mutex);
+}
+
+
+
+void GLAPIENTRY
+_mesa_FramebufferTexture1DEXT(GLenum target, GLenum attachment,
+                              GLenum textarget, GLuint texture, GLint level)
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   if ((texture != 0) && (textarget != GL_TEXTURE_1D)) {
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "glFramebufferTexture1DEXT(textarget)");
+      return;
+   }
+
+   framebuffer_texture(ctx, "1D", target, attachment, textarget, texture,
+                       level, 0);
+}
+
+
+void GLAPIENTRY
+_mesa_FramebufferTexture2DEXT(GLenum target, GLenum attachment,
+                              GLenum textarget, GLuint texture, GLint level)
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   if ((texture != 0) &&
+       (textarget != GL_TEXTURE_2D) &&
+       (textarget != GL_TEXTURE_RECTANGLE_ARB) &&
+       (!IS_CUBE_FACE(textarget))) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glFramebufferTexture2DEXT(textarget=0x%x)", textarget);
+      return;
+   }
+
+   framebuffer_texture(ctx, "2D", target, attachment, textarget, texture,
+                       level, 0);
+}
+
+
+void GLAPIENTRY
+_mesa_FramebufferTexture3DEXT(GLenum target, GLenum attachment,
+                              GLenum textarget, GLuint texture,
+                              GLint level, GLint zoffset)
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   if ((texture != 0) && (textarget != GL_TEXTURE_3D)) {
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "glFramebufferTexture3DEXT(textarget)");
+      return;
+   }
+
+   framebuffer_texture(ctx, "3D", target, attachment, textarget, texture,
+                       level, zoffset);
+}
+
+
+void GLAPIENTRY
+_mesa_FramebufferTextureLayerEXT(GLenum target, GLenum attachment,
+                                 GLuint texture, GLint level, GLint layer)
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   framebuffer_texture(ctx, "Layer", target, attachment, 0, texture,
+                       level, layer);
+}
+
+
+void GLAPIENTRY
+_mesa_FramebufferRenderbufferEXT(GLenum target, GLenum attachment,
+                                 GLenum renderbufferTarget,
+                                 GLuint renderbuffer)
+{
+   struct gl_renderbuffer_attachment *att;
+   struct gl_framebuffer *fb;
+   struct gl_renderbuffer *rb;
+   GET_CURRENT_CONTEXT(ctx);
+
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   switch (target) {
+#if FEATURE_EXT_framebuffer_blit
+   case GL_DRAW_FRAMEBUFFER_EXT:
+      if (!ctx->Extensions.EXT_framebuffer_blit) {
+         _mesa_error(ctx, GL_INVALID_ENUM,
+                     "glFramebufferRenderbufferEXT(target)");
+         return;
+      }
+      fb = ctx->DrawBuffer;
+      break;
+   case GL_READ_FRAMEBUFFER_EXT:
+      if (!ctx->Extensions.EXT_framebuffer_blit) {
+         _mesa_error(ctx, GL_INVALID_ENUM,
+                     "glFramebufferRenderbufferEXT(target)");
+         return;
+      }
+      fb = ctx->ReadBuffer;
+      break;
+#endif
+   case GL_FRAMEBUFFER_EXT:
+      fb = ctx->DrawBuffer;
+      break;
+   default:
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "glFramebufferRenderbufferEXT(target)");
+      return;
+   }
+
+   if (renderbufferTarget != GL_RENDERBUFFER_EXT) {
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "glFramebufferRenderbufferEXT(renderbufferTarget)");
+      return;
+   }
+
+   if (fb->Name == 0) {
+      /* Can't attach new renderbuffers to a window system framebuffer */
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glFramebufferRenderbufferEXT");
+      return;
+   }
+
+   att = _mesa_get_attachment(ctx, fb, attachment);
+   if (att == NULL) {
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "glFramebufferRenderbufferEXT(invalid attachment %s)",
+                  _mesa_lookup_enum_by_nr(attachment));
+      return;
+   }
+
+   if (renderbuffer) {
+      rb = _mesa_lookup_renderbuffer(ctx, renderbuffer);
+      if (!rb) {
+	 _mesa_error(ctx, GL_INVALID_OPERATION,
+		     "glFramebufferRenderbufferEXT(non-existant"
+                     " renderbuffer %u)", renderbuffer);
+	 return;
+      }
+      else if (rb == &DummyRenderbuffer) {
+         /* This is what NVIDIA does */
+	 _mesa_error(ctx, GL_INVALID_VALUE,
+		     "glFramebufferRenderbufferEXT(renderbuffer %u)",
+                     renderbuffer);
+	 return;
+      }
+   }
+   else {
+      /* remove renderbuffer attachment */
+      rb = NULL;
+   }
+
+   if (attachment == GL_DEPTH_STENCIL_ATTACHMENT &&
+       rb && rb->Format != MESA_FORMAT_NONE) {
+      /* make sure the renderbuffer is a depth/stencil format */
+      const GLenum baseFormat = _mesa_get_format_base_format(rb->Format);
+      if (baseFormat != GL_DEPTH_STENCIL) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glFramebufferRenderbufferEXT(renderbuffer"
+                     " is not DEPTH_STENCIL format)");
+         return;
+      }
+   }
+
+
+   FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+   assert(ctx->Driver.FramebufferRenderbuffer);
+   ctx->Driver.FramebufferRenderbuffer(ctx, fb, attachment, rb);
+
+   /* Some subsequent GL commands may depend on the framebuffer's visual
+    * after the binding is updated.  Update visual info now.
+    */
+   _mesa_update_framebuffer_visual(ctx, fb);
+}
+
+
+void GLAPIENTRY
+_mesa_GetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment,
+                                             GLenum pname, GLint *params)
+{
+   const struct gl_renderbuffer_attachment *att;
+   struct gl_framebuffer *buffer;
+   GET_CURRENT_CONTEXT(ctx);
+
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   switch (target) {
+#if FEATURE_EXT_framebuffer_blit
+   case GL_DRAW_FRAMEBUFFER_EXT:
+      if (!ctx->Extensions.EXT_framebuffer_blit) {
+         _mesa_error(ctx, GL_INVALID_ENUM,
+                     "glGetFramebufferAttachmentParameterivEXT(target)");
+         return;
+      }
+      buffer = ctx->DrawBuffer;
+      break;
+   case GL_READ_FRAMEBUFFER_EXT:
+      if (!ctx->Extensions.EXT_framebuffer_blit) {
+         _mesa_error(ctx, GL_INVALID_ENUM,
+                     "glGetFramebufferAttachmentParameterivEXT(target)");
+         return;
+      }
+      buffer = ctx->ReadBuffer;
+      break;
+#endif
+   case GL_FRAMEBUFFER_EXT:
+      buffer = ctx->DrawBuffer;
+      break;
+   default:
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "glGetFramebufferAttachmentParameterivEXT(target)");
+      return;
+   }
+
+   if (buffer->Name == 0) {
+      /* the default / window-system FBO */
+      att = _mesa_get_fb0_attachment(ctx, buffer, attachment);
+   }
+   else {
+      /* user-created framebuffer FBO */
+      att = _mesa_get_attachment(ctx, buffer, attachment);
+   }
+
+   if (att == NULL) {
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "glGetFramebufferAttachmentParameterivEXT(attachment)");
+      return;
+   }
+
+   if (attachment == GL_DEPTH_STENCIL_ATTACHMENT) {
+      /* the depth and stencil attachments must point to the same buffer */
+      const struct gl_renderbuffer_attachment *depthAtt, *stencilAtt;
+      depthAtt = _mesa_get_attachment(ctx, buffer, GL_DEPTH_ATTACHMENT);
+      stencilAtt = _mesa_get_attachment(ctx, buffer, GL_STENCIL_ATTACHMENT);
+      if (depthAtt->Renderbuffer != stencilAtt->Renderbuffer) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glGetFramebufferAttachmentParameterivEXT(DEPTH/STENCIL"
+                     " attachments differ)");
+         return;
+      }
+   }
+
+   /* No need to flush here */
+
+   switch (pname) {
+   case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE_EXT:
+      *params = buffer->Name == 0 ? GL_FRAMEBUFFER_DEFAULT : att->Type;
+      return;
+   case GL_FRAMEBUFFER_ATTACHMENT_OBJECT_NAME_EXT:
+      if (att->Type == GL_RENDERBUFFER_EXT) {
+	 *params = att->Renderbuffer->Name;
+      }
+      else if (att->Type == GL_TEXTURE) {
+	 *params = att->Texture->Name;
+      }
+      else {
+         assert(att->Type == GL_NONE);
+         *params = 0;
+      }
+      return;
+   case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_LEVEL_EXT:
+      if (att->Type == GL_TEXTURE) {
+	 *params = att->TextureLevel;
+      }
+      else {
+	 _mesa_error(ctx, GL_INVALID_ENUM,
+		     "glGetFramebufferAttachmentParameterivEXT(pname)");
+      }
+      return;
+   case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_CUBE_MAP_FACE_EXT:
+      if (att->Type == GL_TEXTURE) {
+         if (att->Texture && att->Texture->Target == GL_TEXTURE_CUBE_MAP) {
+            *params = GL_TEXTURE_CUBE_MAP_POSITIVE_X + att->CubeMapFace;
+         }
+         else {
+            *params = 0;
+         }
+      }
+      else {
+	 _mesa_error(ctx, GL_INVALID_ENUM,
+		     "glGetFramebufferAttachmentParameterivEXT(pname)");
+      }
+      return;
+   case GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_3D_ZOFFSET_EXT:
+      if (att->Type == GL_TEXTURE) {
+         if (att->Texture && att->Texture->Target == GL_TEXTURE_3D) {
+            *params = att->Zoffset;
+         }
+         else {
+            *params = 0;
+         }
+      }
+      else {
+	 _mesa_error(ctx, GL_INVALID_ENUM,
+		     "glGetFramebufferAttachmentParameterivEXT(pname)");
+      }
+      return;
+   case GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING:
+      if (!ctx->Extensions.ARB_framebuffer_object) {
+         _mesa_error(ctx, GL_INVALID_ENUM,
+                     "glGetFramebufferAttachmentParameterivEXT(pname)");
+      }
+      else {
+         if (ctx->Extensions.EXT_framebuffer_sRGB && ctx->Const.sRGBCapable) {
+            *params = _mesa_get_format_color_encoding(att->Renderbuffer->Format);
+         }
+         else {
+            /* According to ARB_framebuffer_sRGB, we should return LINEAR
+             * if the sRGB conversion is unsupported. */
+            *params = GL_LINEAR;
+         }
+      }
+      return;
+   case GL_FRAMEBUFFER_ATTACHMENT_COMPONENT_TYPE:
+      if (!ctx->Extensions.ARB_framebuffer_object) {
+         _mesa_error(ctx, GL_INVALID_ENUM,
+                     "glGetFramebufferAttachmentParameterivEXT(pname)");
+         return;
+      }
+      else {
+         gl_format format = att->Renderbuffer->Format;
+         if (format == MESA_FORMAT_CI8 || format == MESA_FORMAT_S8) {
+            /* special cases */
+            *params = GL_INDEX;
+         }
+         else {
+            *params = _mesa_get_format_datatype(format);
+         }
+      }
+      return;
+   case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
+   case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
+   case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
+   case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
+   case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
+   case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
+      if (!ctx->Extensions.ARB_framebuffer_object) {
+         _mesa_error(ctx, GL_INVALID_ENUM,
+                     "glGetFramebufferAttachmentParameterivEXT(pname)");
+      }
+      else if (att->Texture) {
+         const struct gl_texture_image *texImage =
+            _mesa_select_tex_image(ctx, att->Texture, att->Texture->Target,
+                                   att->TextureLevel);
+         if (texImage) {
+            *params = get_component_bits(pname, texImage->_BaseFormat,
+                                         texImage->TexFormat);
+         }
+         else {
+            *params = 0;
+         }
+      }
+      else if (att->Renderbuffer) {
+         *params = get_component_bits(pname, att->Renderbuffer->_BaseFormat,
+                                      att->Renderbuffer->Format);
+      }
+      else {
+         *params = 0;
+      }
+      return;
+   default:
+      _mesa_error(ctx, GL_INVALID_ENUM,
+                  "glGetFramebufferAttachmentParameterivEXT(pname)");
+      return;
+   }
+}
+
+
+void GLAPIENTRY
+_mesa_GenerateMipmapEXT(GLenum target)
+{
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+   FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+   switch (target) {
+   case GL_TEXTURE_1D:
+   case GL_TEXTURE_2D:
+   case GL_TEXTURE_3D:
+   case GL_TEXTURE_CUBE_MAP:
+      /* OK, legal value */
+      break;
+   default:
+      /* XXX need to implement GL_TEXTURE_1D_ARRAY and GL_TEXTURE_2D_ARRAY */
+      _mesa_error(ctx, GL_INVALID_ENUM, "glGenerateMipmapEXT(target)");
+      return;
+   }
+
+   texObj = _mesa_get_current_tex_object(ctx, target);
+
+   if (texObj->BaseLevel >= texObj->MaxLevel) {
+      /* nothing to do */
+      return;
+   }
+
+   if (texObj->Target == GL_TEXTURE_CUBE_MAP &&
+       !_mesa_cube_complete(texObj)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glGenerateMipmap(incomplete cube map)");
+      return;
+   }
+
+   _mesa_lock_texture(ctx, texObj);
+   if (target == GL_TEXTURE_CUBE_MAP) {
+      GLuint face;
+      for (face = 0; face < 6; face++)
+	 ctx->Driver.GenerateMipmap(ctx,
+				    GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB + face,
+				    texObj);
+   }
+   else {
+      ctx->Driver.GenerateMipmap(ctx, target, texObj);
+   }
+   _mesa_unlock_texture(ctx, texObj);
+}
+
+
+#if FEATURE_EXT_framebuffer_blit
+
+static const struct gl_renderbuffer_attachment *
+find_attachment(const struct gl_framebuffer *fb,
+                const struct gl_renderbuffer *rb)
+{
+   GLuint i;
+   for (i = 0; i < Elements(fb->Attachment); i++) {
+      if (fb->Attachment[i].Renderbuffer == rb)
+         return &fb->Attachment[i];
+   }
+   return NULL;
+}
+
+
+
+/**
+ * Blit rectangular region, optionally from one framebuffer to another.
+ *
+ * Note, if the src buffer is multisampled and the dest is not, this is
+ * when the samples must be resolved to a single color.
+ */
+void GLAPIENTRY
+_mesa_BlitFramebufferEXT(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
+                         GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
+                         GLbitfield mask, GLenum filter)
+{
+   const GLbitfield legalMaskBits = (GL_COLOR_BUFFER_BIT |
+                                     GL_DEPTH_BUFFER_BIT |
+                                     GL_STENCIL_BUFFER_BIT);
+   const struct gl_framebuffer *readFb, *drawFb;
+   const struct gl_renderbuffer *colorReadRb, *colorDrawRb;
+   GET_CURRENT_CONTEXT(ctx);
+
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+   FLUSH_VERTICES(ctx, _NEW_BUFFERS);
+
+   if (ctx->NewState) {
+      _mesa_update_state(ctx);
+   }
+
+   readFb = ctx->ReadBuffer;
+   drawFb = ctx->DrawBuffer;
+
+   if (!readFb || !drawFb) {
+      /* This will normally never happen but someday we may want to
+       * support MakeCurrent() with no drawables.
+       */
+      return;
+   }
+
+   /* check for complete framebuffers */
+   if (drawFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT ||
+       readFb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+      _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+                  "glBlitFramebufferEXT(incomplete draw/read buffers)");
+      return;
+   }
+
+   if (filter != GL_NEAREST && filter != GL_LINEAR) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glBlitFramebufferEXT(filter)");
+      return;
+   }
+
+   if (mask & ~legalMaskBits) {
+      _mesa_error( ctx, GL_INVALID_VALUE, "glBlitFramebufferEXT(mask)");
+      return;
+   }
+
+   /* depth/stencil must be blitted with nearest filtering */
+   if ((mask & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT))
+        && filter != GL_NEAREST) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+             "glBlitFramebufferEXT(depth/stencil requires GL_NEAREST filter");
+      return;
+   }
+
+   /* get color read/draw renderbuffers */
+   if (mask & GL_COLOR_BUFFER_BIT) {
+      colorReadRb = readFb->_ColorReadBuffer;
+      colorDrawRb = drawFb->_ColorDrawBuffers[0];
+   }
+   else {
+      colorReadRb = colorDrawRb = NULL;
+   }
+
+   if (mask & GL_STENCIL_BUFFER_BIT) {
+      struct gl_renderbuffer *readRb = readFb->_StencilBuffer;
+      struct gl_renderbuffer *drawRb = drawFb->_StencilBuffer;
+      if (!readRb ||
+          !drawRb ||
+          _mesa_get_format_bits(readRb->Format, GL_STENCIL_BITS) != 
+          _mesa_get_format_bits(drawRb->Format, GL_STENCIL_BITS)) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glBlitFramebufferEXT(stencil buffer size mismatch");
+         return;
+      }
+   }
+
+   if (mask & GL_DEPTH_BUFFER_BIT) {
+      struct gl_renderbuffer *readRb = readFb->_DepthBuffer;
+      struct gl_renderbuffer *drawRb = drawFb->_DepthBuffer;
+      if (!readRb ||
+          !drawRb ||
+          _mesa_get_format_bits(readRb->Format, GL_DEPTH_BITS) != 
+          _mesa_get_format_bits(drawRb->Format, GL_DEPTH_BITS)) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glBlitFramebufferEXT(depth buffer size mismatch");
+         return;
+      }
+   }
+
+   if (readFb->Visual.samples > 0 &&
+       drawFb->Visual.samples > 0 &&
+       readFb->Visual.samples != drawFb->Visual.samples) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glBlitFramebufferEXT(mismatched samples");
+      return;
+   }
+
+   /* extra checks for multisample copies... */
+   if (readFb->Visual.samples > 0 || drawFb->Visual.samples > 0) {
+      /* src and dest region sizes must be the same */
+      if (srcX1 - srcX0 != dstX1 - dstX0 ||
+          srcY1 - srcY0 != dstY1 - dstY0) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                "glBlitFramebufferEXT(bad src/dst multisample region sizes");
+         return;
+      }
+
+      /* color formats must match */
+      if (colorReadRb &&
+          colorDrawRb &&
+          colorReadRb->Format != colorDrawRb->Format) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                "glBlitFramebufferEXT(bad src/dst multisample pixel formats");
+         return;
+      }
+   }
+
+   if (!ctx->Extensions.EXT_framebuffer_blit) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glBlitFramebufferEXT");
+      return;
+   }
+
+   /* Debug code */
+   if (DEBUG_BLIT) {
+      printf("glBlitFramebuffer(%d, %d, %d, %d,  %d, %d, %d, %d,"
+	     " 0x%x, 0x%x)\n",
+	     srcX0, srcY0, srcX1, srcY1,
+	     dstX0, dstY0, dstX1, dstY1,
+	     mask, filter);
+      if (colorReadRb) {
+         const struct gl_renderbuffer_attachment *att;
+
+         att = find_attachment(readFb, colorReadRb);
+         printf("  Src FBO %u  RB %u (%dx%d)  ",
+		readFb->Name, colorReadRb->Name,
+		colorReadRb->Width, colorReadRb->Height);
+         if (att && att->Texture) {
+            printf("Tex %u  tgt 0x%x  level %u  face %u",
+		   att->Texture->Name,
+		   att->Texture->Target,
+		   att->TextureLevel,
+		   att->CubeMapFace);
+         }
+         printf("\n");
+
+         att = find_attachment(drawFb, colorDrawRb);
+         printf("  Dst FBO %u  RB %u (%dx%d)  ",
+		drawFb->Name, colorDrawRb->Name,
+		colorDrawRb->Width, colorDrawRb->Height);
+         if (att && att->Texture) {
+            printf("Tex %u  tgt 0x%x  level %u  face %u",
+		   att->Texture->Name,
+		   att->Texture->Target,
+		   att->TextureLevel,
+		   att->CubeMapFace);
+         }
+         printf("\n");
+      }
+   }
+
+   ASSERT(ctx->Driver.BlitFramebuffer);
+   ctx->Driver.BlitFramebuffer(ctx,
+                               srcX0, srcY0, srcX1, srcY1,
+                               dstX0, dstY0, dstX1, dstY1,
+                               mask, filter);
+}
+#endif /* FEATURE_EXT_framebuffer_blit */
+
+#if FEATURE_ARB_geometry_shader4
+void GLAPIENTRY
+_mesa_FramebufferTextureARB(GLenum target, GLenum attachment,
+                            GLuint texture, GLint level)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_error(ctx, GL_INVALID_OPERATION,
+               "glFramebufferTextureARB "
+               "not implemented!");
+}
+
+void GLAPIENTRY
+_mesa_FramebufferTextureFaceARB(GLenum target, GLenum attachment,
+                                GLuint texture, GLint level, GLenum face)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_error(ctx, GL_INVALID_OPERATION,
+               "glFramebufferTextureFaceARB "
+               "not implemented!");
+}
+#endif /* FEATURE_ARB_geometry_shader4 */
diff --git a/mesalib/src/mesa/main/framebuffer.c b/mesalib/src/mesa/main/framebuffer.c
index 5833e5d58..948b3b7b5 100644
--- a/mesalib/src/mesa/main/framebuffer.c
+++ b/mesalib/src/mesa/main/framebuffer.c
@@ -1,1084 +1,1086 @@
-/*

- * Mesa 3-D graphics library

- * Version:  7.2

- *

- * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.

- *

- * Permission is hereby granted, free of charge, to any person obtaining a

- * copy of this software and associated documentation files (the "Software"),

- * to deal in the Software without restriction, including without limitation

- * the rights to use, copy, modify, merge, publish, distribute, sublicense,

- * and/or sell copies of the Software, and to permit persons to whom the

- * Software is furnished to do so, subject to the following conditions:

- *

- * The above copyright notice and this permission notice shall be included

- * in all copies or substantial portions of the Software.

- *

- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

- */

-

-

-/**

- * Functions for allocating/managing framebuffers and renderbuffers.

- * Also, routines for reading/writing renderbuffer data as ubytes,

- * ushorts, uints, etc.

- */

-

-

-#include "glheader.h"

-#include "imports.h"

-#include "buffers.h"

-#include "context.h"

-#include "depthstencil.h"

-#include "enums.h"

-#include "formats.h"

-#include "macros.h"

-#include "mtypes.h"

-#include "fbobject.h"

-#include "framebuffer.h"

-#include "renderbuffer.h"

-#include "texobj.h"

-

-

-

-/**

- * Compute/set the _DepthMax field for the given framebuffer.

- * This value depends on the Z buffer resolution.

- */

-static void

-compute_depth_max(struct gl_framebuffer *fb)

-{

-   if (fb->Visual.depthBits == 0) {

-      /* Special case.  Even if we don't have a depth buffer we need

-       * good values for DepthMax for Z vertex transformation purposes

-       * and for per-fragment fog computation.

-       */

-      fb->_DepthMax = (1 << 16) - 1;

-   }

-   else if (fb->Visual.depthBits < 32) {

-      fb->_DepthMax = (1 << fb->Visual.depthBits) - 1;

-   }

-   else {

-      /* Special case since shift values greater than or equal to the

-       * number of bits in the left hand expression's type are undefined.

-       */

-      fb->_DepthMax = 0xffffffff;

-   }

-   fb->_DepthMaxF = (GLfloat) fb->_DepthMax;

-

-   /* Minimum resolvable depth value, for polygon offset */

-   fb->_MRD = (GLfloat)1.0 / fb->_DepthMaxF;

-}

-

-/**

- * Create and initialize a gl_framebuffer object.

- * This is intended for creating _window_system_ framebuffers, not generic

- * framebuffer objects ala GL_EXT_framebuffer_object.

- *

- * \sa _mesa_new_framebuffer

- */

-struct gl_framebuffer *

-_mesa_create_framebuffer(const struct gl_config *visual)

-{

-   struct gl_framebuffer *fb = CALLOC_STRUCT(gl_framebuffer);

-   assert(visual);

-   if (fb) {

-      _mesa_initialize_window_framebuffer(fb, visual);

-   }

-   return fb;

-}

-

-

-/**

- * Allocate a new gl_framebuffer object.

- * This is the default function for ctx->Driver.NewFramebuffer().

- * This is for allocating user-created framebuffers, not window-system

- * framebuffers!

- * \sa _mesa_create_framebuffer

- */

-struct gl_framebuffer *

-_mesa_new_framebuffer(struct gl_context *ctx, GLuint name)

-{

-   struct gl_framebuffer *fb;

-   (void) ctx;

-   assert(name != 0);

-   fb = CALLOC_STRUCT(gl_framebuffer);

-   if (fb) {

-      _mesa_initialize_user_framebuffer(fb, name);

-   }

-   return fb;

-}

-

-

-/**

- * Initialize a gl_framebuffer object.  Typically used to initialize

- * window system-created framebuffers, not user-created framebuffers.

- * \sa _mesa_initialize_user_framebuffer

- */

-void

-_mesa_initialize_window_framebuffer(struct gl_framebuffer *fb,

-				     const struct gl_config *visual)

-{

-   assert(fb);

-   assert(visual);

-

-   memset(fb, 0, sizeof(struct gl_framebuffer));

-

-   _glthread_INIT_MUTEX(fb->Mutex);

-

-   fb->RefCount = 1;

-

-   /* save the visual */

-   fb->Visual = *visual;

-

-   /* Init read/draw renderbuffer state */

-   if (visual->doubleBufferMode) {

-      fb->_NumColorDrawBuffers = 1;

-      fb->ColorDrawBuffer[0] = GL_BACK;

-      fb->_ColorDrawBufferIndexes[0] = BUFFER_BACK_LEFT;

-      fb->ColorReadBuffer = GL_BACK;

-      fb->_ColorReadBufferIndex = BUFFER_BACK_LEFT;

-   }

-   else {

-      fb->_NumColorDrawBuffers = 1;

-      fb->ColorDrawBuffer[0] = GL_FRONT;

-      fb->_ColorDrawBufferIndexes[0] = BUFFER_FRONT_LEFT;

-      fb->ColorReadBuffer = GL_FRONT;

-      fb->_ColorReadBufferIndex = BUFFER_FRONT_LEFT;

-   }

-

-   fb->Delete = _mesa_destroy_framebuffer;

-   fb->_Status = GL_FRAMEBUFFER_COMPLETE_EXT;

-

-   compute_depth_max(fb);

-}

-

-

-/**

- * Initialize a user-created gl_framebuffer object.

- * \sa _mesa_initialize_window_framebuffer

- */

-void

-_mesa_initialize_user_framebuffer(struct gl_framebuffer *fb, GLuint name)

-{

-   assert(fb);

-   assert(name);

-

-   memset(fb, 0, sizeof(struct gl_framebuffer));

-

-   fb->Name = name;

-   fb->RefCount = 1;

-   fb->_NumColorDrawBuffers = 1;

-   fb->ColorDrawBuffer[0] = GL_COLOR_ATTACHMENT0_EXT;

-   fb->_ColorDrawBufferIndexes[0] = BUFFER_COLOR0;

-   fb->ColorReadBuffer = GL_COLOR_ATTACHMENT0_EXT;

-   fb->_ColorReadBufferIndex = BUFFER_COLOR0;

-   fb->Delete = _mesa_destroy_framebuffer;

-   _glthread_INIT_MUTEX(fb->Mutex);

-}

-

-

-/**

- * Deallocate buffer and everything attached to it.

- * Typically called via the gl_framebuffer->Delete() method.

- */

-void

-_mesa_destroy_framebuffer(struct gl_framebuffer *fb)

-{

-   if (fb) {

-      _mesa_free_framebuffer_data(fb);

-      free(fb);

-   }

-}

-

-

-/**

- * Free all the data hanging off the given gl_framebuffer, but don't free

- * the gl_framebuffer object itself.

- */

-void

-_mesa_free_framebuffer_data(struct gl_framebuffer *fb)

-{

-   GLuint i;

-

-   assert(fb);

-   assert(fb->RefCount == 0);

-

-   _glthread_DESTROY_MUTEX(fb->Mutex);

-

-   for (i = 0; i < BUFFER_COUNT; i++) {

-      struct gl_renderbuffer_attachment *att = &fb->Attachment[i];

-      if (att->Renderbuffer) {

-         _mesa_reference_renderbuffer(&att->Renderbuffer, NULL);

-      }

-      if (att->Texture) {

-         _mesa_reference_texobj(&att->Texture, NULL);

-      }

-      ASSERT(!att->Renderbuffer);

-      ASSERT(!att->Texture);

-      att->Type = GL_NONE;

-   }

-

-   /* unbind _Depth/_StencilBuffer to decr ref counts */

-   _mesa_reference_renderbuffer(&fb->_DepthBuffer, NULL);

-   _mesa_reference_renderbuffer(&fb->_StencilBuffer, NULL);

-}

-

-

-/**

- * Set *ptr to point to fb, with refcounting and locking.

- */

-void

-_mesa_reference_framebuffer(struct gl_framebuffer **ptr,

-                            struct gl_framebuffer *fb)

-{

-   assert(ptr);

-   if (*ptr == fb) {

-      /* no change */

-      return;

-   }

-

-   if (*ptr) {

-      /* unreference old renderbuffer */

-      GLboolean deleteFlag = GL_FALSE;

-      struct gl_framebuffer *oldFb = *ptr;

-

-      _glthread_LOCK_MUTEX(oldFb->Mutex);

-      ASSERT(oldFb->RefCount > 0);

-      oldFb->RefCount--;

-      deleteFlag = (oldFb->RefCount == 0);

-      _glthread_UNLOCK_MUTEX(oldFb->Mutex);

-      

-      if (deleteFlag)

-         oldFb->Delete(oldFb);

-

-      *ptr = NULL;

-   }

-   assert(!*ptr);

-

-   if (fb) {

-      _glthread_LOCK_MUTEX(fb->Mutex);

-      fb->RefCount++;

-      _glthread_UNLOCK_MUTEX(fb->Mutex);

-      *ptr = fb;

-   }

-}

-

-

-/**

- * Resize the given framebuffer's renderbuffers to the new width and height.

- * This should only be used for window-system framebuffers, not

- * user-created renderbuffers (i.e. made with GL_EXT_framebuffer_object).

- * This will typically be called via ctx->Driver.ResizeBuffers() or directly

- * from a device driver.

- *

- * \note it's possible for ctx to be null since a window can be resized

- * without a currently bound rendering context.

- */

-void

-_mesa_resize_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb,

-                         GLuint width, GLuint height)

-{

-   GLuint i;

-

-   /* XXX I think we could check if the size is not changing

-    * and return early.

-    */

-

-   /* For window system framebuffers, Name is zero */

-   assert(fb->Name == 0);

-

-   for (i = 0; i < BUFFER_COUNT; i++) {

-      struct gl_renderbuffer_attachment *att = &fb->Attachment[i];

-      if (att->Type == GL_RENDERBUFFER_EXT && att->Renderbuffer) {

-         struct gl_renderbuffer *rb = att->Renderbuffer;

-         /* only resize if size is changing */

-         if (rb->Width != width || rb->Height != height) {

-            if (rb->AllocStorage(ctx, rb, rb->InternalFormat, width, height)) {

-               ASSERT(rb->Width == width);

-               ASSERT(rb->Height == height);

-            }

-            else {

-               _mesa_error(ctx, GL_OUT_OF_MEMORY, "Resizing framebuffer");

-               /* no return */

-            }

-         }

-      }

-   }

-

-   if (fb->_DepthBuffer) {

-      struct gl_renderbuffer *rb = fb->_DepthBuffer;

-      if (rb->Width != width || rb->Height != height) {

-         if (!rb->AllocStorage(ctx, rb, rb->InternalFormat, width, height)) {

-            _mesa_error(ctx, GL_OUT_OF_MEMORY, "Resizing framebuffer");

-         }

-      }

-   }

-

-   if (fb->_StencilBuffer) {

-      struct gl_renderbuffer *rb = fb->_StencilBuffer;

-      if (rb->Width != width || rb->Height != height) {

-         if (!rb->AllocStorage(ctx, rb, rb->InternalFormat, width, height)) {

-            _mesa_error(ctx, GL_OUT_OF_MEMORY, "Resizing framebuffer");

-         }

-      }

-   }

-

-   fb->Width = width;

-   fb->Height = height;

-

-   if (ctx) {

-      /* update scissor / window bounds */

-      _mesa_update_draw_buffer_bounds(ctx);

-      /* Signal new buffer state so that swrast will update its clipping

-       * info (the CLIP_BIT flag).

-       */

-      ctx->NewState |= _NEW_BUFFERS;

-   }

-}

-

-

-

-/**

- * XXX THIS IS OBSOLETE - drivers should take care of detecting window

- * size changes and act accordingly, likely calling _mesa_resize_framebuffer().

- *

- * GL_MESA_resize_buffers extension.

- *

- * When this function is called, we'll ask the window system how large

- * the current window is.  If it's a new size, we'll call the driver's

- * ResizeBuffers function.  The driver will then resize its color buffers

- * as needed, and maybe call the swrast's routine for reallocating

- * swrast-managed depth/stencil/accum/etc buffers.

- * \note This function should only be called through the GL API, not

- * from device drivers (as was done in the past).

- */

-void

-_mesa_resizebuffers( struct gl_context *ctx )

-{

-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH( ctx );

-

-   if (MESA_VERBOSE & VERBOSE_API)

-      _mesa_debug(ctx, "glResizeBuffersMESA\n");

-

-   if (!ctx->Driver.GetBufferSize) {

-      return;

-   }

-

-   if (ctx->WinSysDrawBuffer) {

-      GLuint newWidth, newHeight;

-      struct gl_framebuffer *buffer = ctx->WinSysDrawBuffer;

-

-      assert(buffer->Name == 0);

-

-      /* ask device driver for size of output buffer */

-      ctx->Driver.GetBufferSize( buffer, &newWidth, &newHeight );

-

-      /* see if size of device driver's color buffer (window) has changed */

-      if (buffer->Width != newWidth || buffer->Height != newHeight) {

-         if (ctx->Driver.ResizeBuffers)

-            ctx->Driver.ResizeBuffers(ctx, buffer, newWidth, newHeight );

-      }

-   }

-

-   if (ctx->WinSysReadBuffer

-       && ctx->WinSysReadBuffer != ctx->WinSysDrawBuffer) {

-      GLuint newWidth, newHeight;

-      struct gl_framebuffer *buffer = ctx->WinSysReadBuffer;

-

-      assert(buffer->Name == 0);

-

-      /* ask device driver for size of read buffer */

-      ctx->Driver.GetBufferSize( buffer, &newWidth, &newHeight );

-

-      /* see if size of device driver's color buffer (window) has changed */

-      if (buffer->Width != newWidth || buffer->Height != newHeight) {

-         if (ctx->Driver.ResizeBuffers)

-            ctx->Driver.ResizeBuffers(ctx, buffer, newWidth, newHeight );

-      }

-   }

-

-   ctx->NewState |= _NEW_BUFFERS;  /* to update scissor / window bounds */

-}

-

-

-/*

- * XXX THIS IS OBSOLETE

- */

-void GLAPIENTRY

-_mesa_ResizeBuffersMESA( void )

-{

-   GET_CURRENT_CONTEXT(ctx);

-

-   if (ctx->Extensions.MESA_resize_buffers)

-      _mesa_resizebuffers( ctx );

-}

-

-

-

-/**

- * Examine all the framebuffer's renderbuffers to update the Width/Height

- * fields of the framebuffer.  If we have renderbuffers with different

- * sizes, set the framebuffer's width and height to the min size.

- * Note: this is only intended for user-created framebuffers, not

- * window-system framebuffes.

- */

-static void

-update_framebuffer_size(struct gl_context *ctx, struct gl_framebuffer *fb)

-{

-   GLuint minWidth = ~0, minHeight = ~0;

-   GLuint i;

-

-   /* user-created framebuffers only */

-   assert(fb->Name);

-

-   for (i = 0; i < BUFFER_COUNT; i++) {

-      struct gl_renderbuffer_attachment *att = &fb->Attachment[i];

-      const struct gl_renderbuffer *rb = att->Renderbuffer;

-      if (rb) {

-         minWidth = MIN2(minWidth, rb->Width);

-         minHeight = MIN2(minHeight, rb->Height);

-      }

-   }

-

-   if (minWidth != ~0) {

-      fb->Width = minWidth;

-      fb->Height = minHeight;

-   }

-   else {

-      fb->Width = 0;

-      fb->Height = 0;

-   }

-}

-

-

-/**

- * Update the context's current drawing buffer's Xmin, Xmax, Ymin, Ymax fields.

- * These values are computed from the buffer's width and height and

- * the scissor box, if it's enabled.

- * \param ctx  the GL context.

- */

-void

-_mesa_update_draw_buffer_bounds(struct gl_context *ctx)

-{

-   struct gl_framebuffer *buffer = ctx->DrawBuffer;

-

-   if (!buffer)

-      return;

-

-   if (buffer->Name) {

-      /* user-created framebuffer size depends on the renderbuffers */

-      update_framebuffer_size(ctx, buffer);

-   }

-

-   buffer->_Xmin = 0;

-   buffer->_Ymin = 0;

-   buffer->_Xmax = buffer->Width;

-   buffer->_Ymax = buffer->Height;

-

-   if (ctx->Scissor.Enabled) {

-      if (ctx->Scissor.X > buffer->_Xmin) {

-	 buffer->_Xmin = ctx->Scissor.X;

-      }

-      if (ctx->Scissor.Y > buffer->_Ymin) {

-	 buffer->_Ymin = ctx->Scissor.Y;

-      }

-      if (ctx->Scissor.X + ctx->Scissor.Width < buffer->_Xmax) {

-	 buffer->_Xmax = ctx->Scissor.X + ctx->Scissor.Width;

-      }

-      if (ctx->Scissor.Y + ctx->Scissor.Height < buffer->_Ymax) {

-	 buffer->_Ymax = ctx->Scissor.Y + ctx->Scissor.Height;

-      }

-      /* finally, check for empty region */

-      if (buffer->_Xmin > buffer->_Xmax) {

-         buffer->_Xmin = buffer->_Xmax;

-      }

-      if (buffer->_Ymin > buffer->_Ymax) {

-         buffer->_Ymin = buffer->_Ymax;

-      }

-   }

-

-   ASSERT(buffer->_Xmin <= buffer->_Xmax);

-   ASSERT(buffer->_Ymin <= buffer->_Ymax);

-}

-

-

-/**

- * The glGet queries of the framebuffer red/green/blue size, stencil size,

- * etc. are satisfied by the fields of ctx->DrawBuffer->Visual.  These can

- * change depending on the renderbuffer bindings.  This function updates

- * the given framebuffer's Visual from the current renderbuffer bindings.

- *

- * This may apply to user-created framebuffers or window system framebuffers.

- *

- * Also note: ctx->DrawBuffer->Visual.depthBits might not equal

- * ctx->DrawBuffer->Attachment[BUFFER_DEPTH].Renderbuffer.DepthBits.

- * The former one is used to convert floating point depth values into

- * integer Z values.

- */

-void

-_mesa_update_framebuffer_visual(struct gl_context *ctx,

-				struct gl_framebuffer *fb)

-{

-   GLuint i;

-

-   memset(&fb->Visual, 0, sizeof(fb->Visual));

-   fb->Visual.rgbMode = GL_TRUE; /* assume this */

-

-#if 0 /* this _might_ be needed */

-   if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {

-      /* leave visual fields zero'd */

-      return;

-   }

-#endif

-

-   /* find first RGB renderbuffer */

-   for (i = 0; i < BUFFER_COUNT; i++) {

-      if (fb->Attachment[i].Renderbuffer) {

-         const struct gl_renderbuffer *rb = fb->Attachment[i].Renderbuffer;

-         const GLenum baseFormat = _mesa_get_format_base_format(rb->Format);

-         const gl_format fmt = rb->Format;

-

-         if (_mesa_is_legal_color_format(ctx, baseFormat)) {

-            fb->Visual.redBits = _mesa_get_format_bits(fmt, GL_RED_BITS);

-            fb->Visual.greenBits = _mesa_get_format_bits(fmt, GL_GREEN_BITS);

-            fb->Visual.blueBits = _mesa_get_format_bits(fmt, GL_BLUE_BITS);

-            fb->Visual.alphaBits = _mesa_get_format_bits(fmt, GL_ALPHA_BITS);

-            fb->Visual.rgbBits = fb->Visual.redBits

-               + fb->Visual.greenBits + fb->Visual.blueBits;

-            fb->Visual.floatMode = GL_FALSE;

-            fb->Visual.samples = rb->NumSamples;

-            break;

-         }

-      }

-   }

-

-   if (fb->Attachment[BUFFER_DEPTH].Renderbuffer) {

-      const struct gl_renderbuffer *rb =

-         fb->Attachment[BUFFER_DEPTH].Renderbuffer;

-      const gl_format fmt = rb->Format;

-      fb->Visual.haveDepthBuffer = GL_TRUE;

-      fb->Visual.depthBits = _mesa_get_format_bits(fmt, GL_DEPTH_BITS);

-   }

-

-   if (fb->Attachment[BUFFER_STENCIL].Renderbuffer) {

-      const struct gl_renderbuffer *rb =

-         fb->Attachment[BUFFER_STENCIL].Renderbuffer;

-      const gl_format fmt = rb->Format;

-      fb->Visual.haveStencilBuffer = GL_TRUE;

-      fb->Visual.stencilBits = _mesa_get_format_bits(fmt, GL_STENCIL_BITS);

-   }

-

-   if (fb->Attachment[BUFFER_ACCUM].Renderbuffer) {

-      const struct gl_renderbuffer *rb =

-         fb->Attachment[BUFFER_ACCUM].Renderbuffer;

-      const gl_format fmt = rb->Format;

-      fb->Visual.haveAccumBuffer = GL_TRUE;

-      fb->Visual.accumRedBits = _mesa_get_format_bits(fmt, GL_RED_BITS);

-      fb->Visual.accumGreenBits = _mesa_get_format_bits(fmt, GL_GREEN_BITS);

-      fb->Visual.accumBlueBits = _mesa_get_format_bits(fmt, GL_BLUE_BITS);

-      fb->Visual.accumAlphaBits = _mesa_get_format_bits(fmt, GL_ALPHA_BITS);

-   }

-

-   compute_depth_max(fb);

-}

-

-

-/**

- * Update the framebuffer's _DepthBuffer field using the renderbuffer

- * found at the given attachment index.

- *

- * If that attachment points to a combined GL_DEPTH_STENCIL renderbuffer,

- * create and install a depth wrapper/adaptor.

- *

- * \param fb  the framebuffer whose _DepthBuffer field to update

- * \param attIndex  indicates the renderbuffer to possibly wrap

- */

-void

-_mesa_update_depth_buffer(struct gl_context *ctx,

-                          struct gl_framebuffer *fb,

-                          GLuint attIndex)

-{

-   struct gl_renderbuffer *depthRb;

-

-   /* only one possiblity for now */

-   ASSERT(attIndex == BUFFER_DEPTH);

-

-   depthRb = fb->Attachment[attIndex].Renderbuffer;

-

-   if (depthRb && _mesa_is_format_packed_depth_stencil(depthRb->Format)) {

-      /* The attached depth buffer is a GL_DEPTH_STENCIL renderbuffer */

-      if (!fb->_DepthBuffer

-          || fb->_DepthBuffer->Wrapped != depthRb

-          || _mesa_get_format_base_format(fb->_DepthBuffer->Format) != GL_DEPTH_COMPONENT) {

-         /* need to update wrapper */

-         struct gl_renderbuffer *wrapper

-            = _mesa_new_z24_renderbuffer_wrapper(ctx, depthRb);

-         _mesa_reference_renderbuffer(&fb->_DepthBuffer, wrapper);

-         ASSERT(fb->_DepthBuffer->Wrapped == depthRb);

-      }

-   }

-   else {

-      /* depthRb may be null */

-      _mesa_reference_renderbuffer(&fb->_DepthBuffer, depthRb);

-   }

-}

-

-

-/**

- * Update the framebuffer's _StencilBuffer field using the renderbuffer

- * found at the given attachment index.

- *

- * If that attachment points to a combined GL_DEPTH_STENCIL renderbuffer,

- * create and install a stencil wrapper/adaptor.

- *

- * \param fb  the framebuffer whose _StencilBuffer field to update

- * \param attIndex  indicates the renderbuffer to possibly wrap

- */

-void

-_mesa_update_stencil_buffer(struct gl_context *ctx,

-                            struct gl_framebuffer *fb,

-                            GLuint attIndex)

-{

-   struct gl_renderbuffer *stencilRb;

-

-   ASSERT(attIndex == BUFFER_DEPTH ||

-          attIndex == BUFFER_STENCIL);

-

-   stencilRb = fb->Attachment[attIndex].Renderbuffer;

-

-   if (stencilRb && _mesa_is_format_packed_depth_stencil(stencilRb->Format)) {

-      /* The attached stencil buffer is a GL_DEPTH_STENCIL renderbuffer */

-      if (!fb->_StencilBuffer

-          || fb->_StencilBuffer->Wrapped != stencilRb

-          || _mesa_get_format_base_format(fb->_StencilBuffer->Format) != GL_STENCIL_INDEX) {

-         /* need to update wrapper */

-         struct gl_renderbuffer *wrapper

-            = _mesa_new_s8_renderbuffer_wrapper(ctx, stencilRb);

-         _mesa_reference_renderbuffer(&fb->_StencilBuffer, wrapper);

-         ASSERT(fb->_StencilBuffer->Wrapped == stencilRb);

-      }

-   }

-   else {

-      /* stencilRb may be null */

-      _mesa_reference_renderbuffer(&fb->_StencilBuffer, stencilRb);

-   }

-}

-

-

-/*

- * Example DrawBuffers scenarios:

- *

- * 1. glDrawBuffer(GL_FRONT_AND_BACK), fixed-func or shader writes to

- * "gl_FragColor" or program writes to the "result.color" register:

- *

- *   fragment color output   renderbuffer

- *   ---------------------   ---------------

- *   color[0]                Front, Back

- *

- *

- * 2. glDrawBuffers(3, [GL_FRONT, GL_AUX0, GL_AUX1]), shader writes to

- * gl_FragData[i] or program writes to result.color[i] registers:

- *

- *   fragment color output   renderbuffer

- *   ---------------------   ---------------

- *   color[0]                Front

- *   color[1]                Aux0

- *   color[3]                Aux1

- *

- *

- * 3. glDrawBuffers(3, [GL_FRONT, GL_AUX0, GL_AUX1]) and shader writes to

- * gl_FragColor, or fixed function:

- *

- *   fragment color output   renderbuffer

- *   ---------------------   ---------------

- *   color[0]                Front, Aux0, Aux1

- *

- *

- * In either case, the list of renderbuffers is stored in the

- * framebuffer->_ColorDrawBuffers[] array and

- * framebuffer->_NumColorDrawBuffers indicates the number of buffers.

- * The renderer (like swrast) has to look at the current fragment shader

- * to see if it writes to gl_FragColor vs. gl_FragData[i] to determine

- * how to map color outputs to renderbuffers.

- *

- * Note that these two calls are equivalent (for fixed function fragment

- * shading anyway):

- *   a)  glDrawBuffer(GL_FRONT_AND_BACK);  (assuming non-stereo framebuffer)

- *   b)  glDrawBuffers(2, [GL_FRONT_LEFT, GL_BACK_LEFT]);

- */

-

-

-

-

-/**

- * Update the (derived) list of color drawing renderbuffer pointers.

- * Later, when we're rendering we'll loop from 0 to _NumColorDrawBuffers

- * writing colors.

- */

-static void

-update_color_draw_buffers(struct gl_context *ctx, struct gl_framebuffer *fb)

-{

-   GLuint output;

-

-   /* set 0th buffer to NULL now in case _NumColorDrawBuffers is zero */

-   fb->_ColorDrawBuffers[0] = NULL;

-

-   for (output = 0; output < fb->_NumColorDrawBuffers; output++) {

-      GLint buf = fb->_ColorDrawBufferIndexes[output];

-      if (buf >= 0) {

-         fb->_ColorDrawBuffers[output] = fb->Attachment[buf].Renderbuffer;

-      }

-      else {

-         fb->_ColorDrawBuffers[output] = NULL;

-      }

-   }

-}

-

-

-/**

- * Update the (derived) color read renderbuffer pointer.

- * Unlike the DrawBuffer, we can only read from one (or zero) color buffers.

- */

-static void

-update_color_read_buffer(struct gl_context *ctx, struct gl_framebuffer *fb)

-{

-   (void) ctx;

-   if (fb->_ColorReadBufferIndex == -1 ||

-       fb->DeletePending ||

-       fb->Width == 0 ||

-       fb->Height == 0) {

-      fb->_ColorReadBuffer = NULL; /* legal! */

-   }

-   else {

-      ASSERT(fb->_ColorReadBufferIndex >= 0);

-      ASSERT(fb->_ColorReadBufferIndex < BUFFER_COUNT);

-      fb->_ColorReadBuffer

-         = fb->Attachment[fb->_ColorReadBufferIndex].Renderbuffer;

-   }

-}

-

-

-/**

- * Update a gl_framebuffer's derived state.

- *

- * Specifically, update these framebuffer fields:

- *    _ColorDrawBuffers

- *    _NumColorDrawBuffers

- *    _ColorReadBuffer

- *    _DepthBuffer

- *    _StencilBuffer

- *

- * If the framebuffer is user-created, make sure it's complete.

- *

- * The following functions (at least) can effect framebuffer state:

- * glReadBuffer, glDrawBuffer, glDrawBuffersARB, glFramebufferRenderbufferEXT,

- * glRenderbufferStorageEXT.

- */

-static void

-update_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb)

-{

-   if (fb->Name == 0) {

-      /* This is a window-system framebuffer */

-      /* Need to update the FB's GL_DRAW_BUFFER state to match the

-       * context state (GL_READ_BUFFER too).

-       */

-      if (fb->ColorDrawBuffer[0] != ctx->Color.DrawBuffer[0]) {

-         _mesa_drawbuffers(ctx, ctx->Const.MaxDrawBuffers,

-                           ctx->Color.DrawBuffer, NULL);

-      }

-      if (fb->ColorReadBuffer != ctx->Pixel.ReadBuffer) {

-         

-      }

-   }

-   else {

-      /* This is a user-created framebuffer.

-       * Completeness only matters for user-created framebuffers.

-       */

-      if (fb->_Status != GL_FRAMEBUFFER_COMPLETE) {

-         _mesa_test_framebuffer_completeness(ctx, fb);

-      }

-   }

-

-   /* Strictly speaking, we don't need to update the draw-state

-    * if this FB is bound as ctx->ReadBuffer (and conversely, the

-    * read-state if this FB is bound as ctx->DrawBuffer), but no

-    * harm.

-    */

-   update_color_draw_buffers(ctx, fb);

-   update_color_read_buffer(ctx, fb);

-   _mesa_update_depth_buffer(ctx, fb, BUFFER_DEPTH);

-   _mesa_update_stencil_buffer(ctx, fb, BUFFER_STENCIL);

-

-   compute_depth_max(fb);

-}

-

-

-/**

- * Update state related to the current draw/read framebuffers.

- */

-void

-_mesa_update_framebuffer(struct gl_context *ctx)

-{

-   struct gl_framebuffer *drawFb;

-   struct gl_framebuffer *readFb;

-

-   assert(ctx);

-   drawFb = ctx->DrawBuffer;

-   readFb = ctx->ReadBuffer;

-

-   update_framebuffer(ctx, drawFb);

-   if (readFb != drawFb)

-      update_framebuffer(ctx, readFb);

-}

-

-

-/**

- * Check if the renderbuffer for a read operation (glReadPixels, glCopyPixels,

- * glCopyTex[Sub]Image, etc) exists.

- * \param format  a basic image format such as GL_RGB, GL_RGBA, GL_ALPHA,

- *                GL_DEPTH_COMPONENT, etc. or GL_COLOR, GL_DEPTH, GL_STENCIL.

- * \return GL_TRUE if buffer exists, GL_FALSE otherwise

- */

-GLboolean

-_mesa_source_buffer_exists(struct gl_context *ctx, GLenum format)

-{

-   const struct gl_renderbuffer_attachment *att = ctx->ReadBuffer->Attachment;

-

-   /* If we don't know the framebuffer status, update it now */

-   if (ctx->ReadBuffer->_Status == 0) {

-      _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);

-   }

-

-   if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {

-      return GL_FALSE;

-   }

-

-   switch (format) {

-   case GL_COLOR:

-   case GL_RED:

-   case GL_GREEN:

-   case GL_BLUE:

-   case GL_ALPHA:

-   case GL_LUMINANCE:

-   case GL_LUMINANCE_ALPHA:

-   case GL_INTENSITY:

-   case GL_RG:

-   case GL_RGB:

-   case GL_BGR:

-   case GL_RGBA:

-   case GL_BGRA:

-   case GL_ABGR_EXT:

-   case GL_COLOR_INDEX:

-   case GL_RED_INTEGER_EXT:

-   case GL_GREEN_INTEGER_EXT:

-   case GL_BLUE_INTEGER_EXT:

-   case GL_ALPHA_INTEGER_EXT:

-   case GL_RGB_INTEGER_EXT:

-   case GL_RGBA_INTEGER_EXT:

-   case GL_BGR_INTEGER_EXT:

-   case GL_BGRA_INTEGER_EXT:

-   case GL_LUMINANCE_INTEGER_EXT:

-   case GL_LUMINANCE_ALPHA_INTEGER_EXT:

-      if (ctx->ReadBuffer->_ColorReadBuffer == NULL) {

-         return GL_FALSE;

-      }

-      ASSERT(_mesa_get_format_bits(ctx->ReadBuffer->_ColorReadBuffer->Format, GL_RED_BITS) > 0 ||

-             _mesa_get_format_bits(ctx->ReadBuffer->_ColorReadBuffer->Format, GL_ALPHA_BITS) > 0 ||

-             _mesa_get_format_bits(ctx->ReadBuffer->_ColorReadBuffer->Format, GL_INDEX_BITS) > 0);

-      break;

-   case GL_DEPTH:

-   case GL_DEPTH_COMPONENT:

-      if (!att[BUFFER_DEPTH].Renderbuffer) {

-         return GL_FALSE;

-      }

-      /*ASSERT(att[BUFFER_DEPTH].Renderbuffer->DepthBits > 0);*/

-      break;

-   case GL_STENCIL:

-   case GL_STENCIL_INDEX:

-      if (!att[BUFFER_STENCIL].Renderbuffer) {

-         return GL_FALSE;

-      }

-      /*ASSERT(att[BUFFER_STENCIL].Renderbuffer->StencilBits > 0);*/

-      break;

-   case GL_DEPTH_STENCIL_EXT:

-      if (!att[BUFFER_DEPTH].Renderbuffer ||

-          !att[BUFFER_STENCIL].Renderbuffer) {

-         return GL_FALSE;

-      }

-      /*

-      ASSERT(att[BUFFER_DEPTH].Renderbuffer->DepthBits > 0);

-      ASSERT(att[BUFFER_STENCIL].Renderbuffer->StencilBits > 0);

-      */

-      break;

-   default:

-      _mesa_problem(ctx,

-                    "Unexpected format 0x%x in _mesa_source_buffer_exists",

-                    format);

-      return GL_FALSE;

-   }

-

-   /* OK */

-   return GL_TRUE;

-}

-

-

-/**

- * As above, but for drawing operations.

- * XXX could do some code merging w/ above function.

- */

-GLboolean

-_mesa_dest_buffer_exists(struct gl_context *ctx, GLenum format)

-{

-   const struct gl_renderbuffer_attachment *att = ctx->DrawBuffer->Attachment;

-

-   /* If we don't know the framebuffer status, update it now */

-   if (ctx->DrawBuffer->_Status == 0) {

-      _mesa_test_framebuffer_completeness(ctx, ctx->DrawBuffer);

-   }

-

-   if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {

-      return GL_FALSE;

-   }

-

-   switch (format) {

-   case GL_COLOR:

-   case GL_RED:

-   case GL_GREEN:

-   case GL_BLUE:

-   case GL_ALPHA:

-   case GL_LUMINANCE:

-   case GL_LUMINANCE_ALPHA:

-   case GL_INTENSITY:

-   case GL_RGB:

-   case GL_BGR:

-   case GL_RGBA:

-   case GL_BGRA:

-   case GL_ABGR_EXT:

-   case GL_COLOR_INDEX:

-   case GL_RED_INTEGER_EXT:

-   case GL_GREEN_INTEGER_EXT:

-   case GL_BLUE_INTEGER_EXT:

-   case GL_ALPHA_INTEGER_EXT:

-   case GL_RGB_INTEGER_EXT:

-   case GL_RGBA_INTEGER_EXT:

-   case GL_BGR_INTEGER_EXT:

-   case GL_BGRA_INTEGER_EXT:

-   case GL_LUMINANCE_INTEGER_EXT:

-   case GL_LUMINANCE_ALPHA_INTEGER_EXT:

-      /* Nothing special since GL_DRAW_BUFFER could be GL_NONE. */

-      /* Could assert that colorbuffer has RedBits > 0 */

-      break;

-   case GL_DEPTH:

-   case GL_DEPTH_COMPONENT:

-      if (!att[BUFFER_DEPTH].Renderbuffer) {

-         return GL_FALSE;

-      }

-      /*ASSERT(att[BUFFER_DEPTH].Renderbuffer->DepthBits > 0);*/

-      break;

-   case GL_STENCIL:

-   case GL_STENCIL_INDEX:

-      if (!att[BUFFER_STENCIL].Renderbuffer) {

-         return GL_FALSE;

-      }

-      /*ASSERT(att[BUFFER_STENCIL].Renderbuffer->StencilBits > 0);*/

-      break;

-   case GL_DEPTH_STENCIL_EXT:

-      if (!att[BUFFER_DEPTH].Renderbuffer ||

-          !att[BUFFER_STENCIL].Renderbuffer) {

-         return GL_FALSE;

-      }

-      /*

-      ASSERT(att[BUFFER_DEPTH].Renderbuffer->DepthBits > 0);

-      ASSERT(att[BUFFER_STENCIL].Renderbuffer->StencilBits > 0);

-      */

-      break;

-   default:

-      _mesa_problem(ctx,

-                    "Unexpected format 0x%x in _mesa_dest_buffer_exists",

-                    format);

-      return GL_FALSE;

-   }

-

-   /* OK */

-   return GL_TRUE;

-}

-

-

-/**

- * Used to answer the GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES query.

- */

-GLenum

-_mesa_get_color_read_format(struct gl_context *ctx)

-{

-   switch (ctx->ReadBuffer->_ColorReadBuffer->Format) {

-   case MESA_FORMAT_ARGB8888:

-      return GL_BGRA;

-   case MESA_FORMAT_RGB565:

-      return GL_BGR;

-   default:

-      return GL_RGBA;

-   }

-}

-

-

-/**

- * Used to answer the GL_IMPLEMENTATION_COLOR_READ_TYPE_OES query.

- */

-GLenum

-_mesa_get_color_read_type(struct gl_context *ctx)

-{

-   switch (ctx->ReadBuffer->_ColorReadBuffer->Format) {

-   case MESA_FORMAT_ARGB8888:

-      return GL_UNSIGNED_BYTE;

-   case MESA_FORMAT_RGB565:

-      return GL_UNSIGNED_SHORT_5_6_5_REV;

-   default:

-      return GL_UNSIGNED_BYTE;

-   }

-}

-

-

-/**

- * Print framebuffer info to stderr, for debugging.

- */

-void

-_mesa_print_framebuffer(const struct gl_framebuffer *fb)

-{

-   GLuint i;

-

-   fprintf(stderr, "Mesa Framebuffer %u at %p\n", fb->Name, (void *) fb);

-   fprintf(stderr, "  Size: %u x %u  Status: %s\n", fb->Width, fb->Height,

-           _mesa_lookup_enum_by_nr(fb->_Status));

-   fprintf(stderr, "  Attachments:\n");

-

-   for (i = 0; i < BUFFER_COUNT; i++) {

-      const struct gl_renderbuffer_attachment *att = &fb->Attachment[i];

-      if (att->Type == GL_TEXTURE) {

-         const struct gl_texture_image *texImage;

-         fprintf(stderr,

-                 "  %2d: Texture %u, level %u, face %u, slice %u, complete %d\n",

-                 i, att->Texture->Name, att->TextureLevel, att->CubeMapFace,

-                 att->Zoffset, att->Complete);

-         texImage = att->Texture->Image[att->CubeMapFace][att->TextureLevel];

-         fprintf(stderr, "       Size: %u x %u x %u  Format %s\n",

-                 texImage->Width, texImage->Height, texImage->Depth,

-                 _mesa_get_format_name(texImage->TexFormat));

-      }

-      else if (att->Type == GL_RENDERBUFFER) {

-         fprintf(stderr, "  %2d: Renderbuffer %u, complete %d\n",

-                 i, att->Renderbuffer->Name, att->Complete);

-         fprintf(stderr, "       Size: %u x %u  Format %s\n",

-                 att->Renderbuffer->Width, att->Renderbuffer->Height,

-                 _mesa_get_format_name(att->Renderbuffer->Format));

-      }

-      else {

-         fprintf(stderr, "  %2d: none\n", i);

-      }

-   }

-}

+/*
+ * Mesa 3-D graphics library
+ * Version:  7.2
+ *
+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * Functions for allocating/managing framebuffers and renderbuffers.
+ * Also, routines for reading/writing renderbuffer data as ubytes,
+ * ushorts, uints, etc.
+ */
+
+
+#include "glheader.h"
+#include "imports.h"
+#include "buffers.h"
+#include "context.h"
+#include "depthstencil.h"
+#include "enums.h"
+#include "formats.h"
+#include "macros.h"
+#include "mtypes.h"
+#include "fbobject.h"
+#include "framebuffer.h"
+#include "renderbuffer.h"
+#include "texobj.h"
+
+
+
+/**
+ * Compute/set the _DepthMax field for the given framebuffer.
+ * This value depends on the Z buffer resolution.
+ */
+static void
+compute_depth_max(struct gl_framebuffer *fb)
+{
+   if (fb->Visual.depthBits == 0) {
+      /* Special case.  Even if we don't have a depth buffer we need
+       * good values for DepthMax for Z vertex transformation purposes
+       * and for per-fragment fog computation.
+       */
+      fb->_DepthMax = (1 << 16) - 1;
+   }
+   else if (fb->Visual.depthBits < 32) {
+      fb->_DepthMax = (1 << fb->Visual.depthBits) - 1;
+   }
+   else {
+      /* Special case since shift values greater than or equal to the
+       * number of bits in the left hand expression's type are undefined.
+       */
+      fb->_DepthMax = 0xffffffff;
+   }
+   fb->_DepthMaxF = (GLfloat) fb->_DepthMax;
+
+   /* Minimum resolvable depth value, for polygon offset */
+   fb->_MRD = (GLfloat)1.0 / fb->_DepthMaxF;
+}
+
+/**
+ * Create and initialize a gl_framebuffer object.
+ * This is intended for creating _window_system_ framebuffers, not generic
+ * framebuffer objects ala GL_EXT_framebuffer_object.
+ *
+ * \sa _mesa_new_framebuffer
+ */
+struct gl_framebuffer *
+_mesa_create_framebuffer(const struct gl_config *visual)
+{
+   struct gl_framebuffer *fb = CALLOC_STRUCT(gl_framebuffer);
+   assert(visual);
+   if (fb) {
+      _mesa_initialize_window_framebuffer(fb, visual);
+   }
+   return fb;
+}
+
+
+/**
+ * Allocate a new gl_framebuffer object.
+ * This is the default function for ctx->Driver.NewFramebuffer().
+ * This is for allocating user-created framebuffers, not window-system
+ * framebuffers!
+ * \sa _mesa_create_framebuffer
+ */
+struct gl_framebuffer *
+_mesa_new_framebuffer(struct gl_context *ctx, GLuint name)
+{
+   struct gl_framebuffer *fb;
+   (void) ctx;
+   assert(name != 0);
+   fb = CALLOC_STRUCT(gl_framebuffer);
+   if (fb) {
+      _mesa_initialize_user_framebuffer(fb, name);
+   }
+   return fb;
+}
+
+
+/**
+ * Initialize a gl_framebuffer object.  Typically used to initialize
+ * window system-created framebuffers, not user-created framebuffers.
+ * \sa _mesa_initialize_user_framebuffer
+ */
+void
+_mesa_initialize_window_framebuffer(struct gl_framebuffer *fb,
+				     const struct gl_config *visual)
+{
+   assert(fb);
+   assert(visual);
+
+   memset(fb, 0, sizeof(struct gl_framebuffer));
+
+   _glthread_INIT_MUTEX(fb->Mutex);
+
+   fb->RefCount = 1;
+
+   /* save the visual */
+   fb->Visual = *visual;
+
+   /* Init read/draw renderbuffer state */
+   if (visual->doubleBufferMode) {
+      fb->_NumColorDrawBuffers = 1;
+      fb->ColorDrawBuffer[0] = GL_BACK;
+      fb->_ColorDrawBufferIndexes[0] = BUFFER_BACK_LEFT;
+      fb->ColorReadBuffer = GL_BACK;
+      fb->_ColorReadBufferIndex = BUFFER_BACK_LEFT;
+   }
+   else {
+      fb->_NumColorDrawBuffers = 1;
+      fb->ColorDrawBuffer[0] = GL_FRONT;
+      fb->_ColorDrawBufferIndexes[0] = BUFFER_FRONT_LEFT;
+      fb->ColorReadBuffer = GL_FRONT;
+      fb->_ColorReadBufferIndex = BUFFER_FRONT_LEFT;
+   }
+
+   fb->Delete = _mesa_destroy_framebuffer;
+   fb->_Status = GL_FRAMEBUFFER_COMPLETE_EXT;
+
+   compute_depth_max(fb);
+}
+
+
+/**
+ * Initialize a user-created gl_framebuffer object.
+ * \sa _mesa_initialize_window_framebuffer
+ */
+void
+_mesa_initialize_user_framebuffer(struct gl_framebuffer *fb, GLuint name)
+{
+   assert(fb);
+   assert(name);
+
+   memset(fb, 0, sizeof(struct gl_framebuffer));
+
+   fb->Name = name;
+   fb->RefCount = 1;
+   fb->_NumColorDrawBuffers = 1;
+   fb->ColorDrawBuffer[0] = GL_COLOR_ATTACHMENT0_EXT;
+   fb->_ColorDrawBufferIndexes[0] = BUFFER_COLOR0;
+   fb->ColorReadBuffer = GL_COLOR_ATTACHMENT0_EXT;
+   fb->_ColorReadBufferIndex = BUFFER_COLOR0;
+   fb->Delete = _mesa_destroy_framebuffer;
+   _glthread_INIT_MUTEX(fb->Mutex);
+}
+
+
+/**
+ * Deallocate buffer and everything attached to it.
+ * Typically called via the gl_framebuffer->Delete() method.
+ */
+void
+_mesa_destroy_framebuffer(struct gl_framebuffer *fb)
+{
+   if (fb) {
+      _mesa_free_framebuffer_data(fb);
+      free(fb);
+   }
+}
+
+
+/**
+ * Free all the data hanging off the given gl_framebuffer, but don't free
+ * the gl_framebuffer object itself.
+ */
+void
+_mesa_free_framebuffer_data(struct gl_framebuffer *fb)
+{
+   GLuint i;
+
+   assert(fb);
+   assert(fb->RefCount == 0);
+
+   _glthread_DESTROY_MUTEX(fb->Mutex);
+
+   for (i = 0; i < BUFFER_COUNT; i++) {
+      struct gl_renderbuffer_attachment *att = &fb->Attachment[i];
+      if (att->Renderbuffer) {
+         _mesa_reference_renderbuffer(&att->Renderbuffer, NULL);
+      }
+      if (att->Texture) {
+         _mesa_reference_texobj(&att->Texture, NULL);
+      }
+      ASSERT(!att->Renderbuffer);
+      ASSERT(!att->Texture);
+      att->Type = GL_NONE;
+   }
+
+   /* unbind _Depth/_StencilBuffer to decr ref counts */
+   _mesa_reference_renderbuffer(&fb->_DepthBuffer, NULL);
+   _mesa_reference_renderbuffer(&fb->_StencilBuffer, NULL);
+}
+
+
+/**
+ * Set *ptr to point to fb, with refcounting and locking.
+ */
+void
+_mesa_reference_framebuffer(struct gl_framebuffer **ptr,
+                            struct gl_framebuffer *fb)
+{
+   assert(ptr);
+   if (*ptr == fb) {
+      /* no change */
+      return;
+   }
+
+   if (*ptr) {
+      /* unreference old renderbuffer */
+      GLboolean deleteFlag = GL_FALSE;
+      struct gl_framebuffer *oldFb = *ptr;
+
+      _glthread_LOCK_MUTEX(oldFb->Mutex);
+      ASSERT(oldFb->RefCount > 0);
+      oldFb->RefCount--;
+      deleteFlag = (oldFb->RefCount == 0);
+      _glthread_UNLOCK_MUTEX(oldFb->Mutex);
+      
+      if (deleteFlag)
+         oldFb->Delete(oldFb);
+
+      *ptr = NULL;
+   }
+   assert(!*ptr);
+
+   if (fb) {
+      _glthread_LOCK_MUTEX(fb->Mutex);
+      fb->RefCount++;
+      _glthread_UNLOCK_MUTEX(fb->Mutex);
+      *ptr = fb;
+   }
+}
+
+
+/**
+ * Resize the given framebuffer's renderbuffers to the new width and height.
+ * This should only be used for window-system framebuffers, not
+ * user-created renderbuffers (i.e. made with GL_EXT_framebuffer_object).
+ * This will typically be called via ctx->Driver.ResizeBuffers() or directly
+ * from a device driver.
+ *
+ * \note it's possible for ctx to be null since a window can be resized
+ * without a currently bound rendering context.
+ */
+void
+_mesa_resize_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb,
+                         GLuint width, GLuint height)
+{
+   GLuint i;
+
+   /* XXX I think we could check if the size is not changing
+    * and return early.
+    */
+
+   /* For window system framebuffers, Name is zero */
+   assert(fb->Name == 0);
+
+   for (i = 0; i < BUFFER_COUNT; i++) {
+      struct gl_renderbuffer_attachment *att = &fb->Attachment[i];
+      if (att->Type == GL_RENDERBUFFER_EXT && att->Renderbuffer) {
+         struct gl_renderbuffer *rb = att->Renderbuffer;
+         /* only resize if size is changing */
+         if (rb->Width != width || rb->Height != height) {
+            if (rb->AllocStorage(ctx, rb, rb->InternalFormat, width, height)) {
+               ASSERT(rb->Width == width);
+               ASSERT(rb->Height == height);
+            }
+            else {
+               _mesa_error(ctx, GL_OUT_OF_MEMORY, "Resizing framebuffer");
+               /* no return */
+            }
+         }
+      }
+   }
+
+   if (fb->_DepthBuffer) {
+      struct gl_renderbuffer *rb = fb->_DepthBuffer;
+      if (rb->Width != width || rb->Height != height) {
+         if (!rb->AllocStorage(ctx, rb, rb->InternalFormat, width, height)) {
+            _mesa_error(ctx, GL_OUT_OF_MEMORY, "Resizing framebuffer");
+         }
+      }
+   }
+
+   if (fb->_StencilBuffer) {
+      struct gl_renderbuffer *rb = fb->_StencilBuffer;
+      if (rb->Width != width || rb->Height != height) {
+         if (!rb->AllocStorage(ctx, rb, rb->InternalFormat, width, height)) {
+            _mesa_error(ctx, GL_OUT_OF_MEMORY, "Resizing framebuffer");
+         }
+      }
+   }
+
+   fb->Width = width;
+   fb->Height = height;
+
+   if (ctx) {
+      /* update scissor / window bounds */
+      _mesa_update_draw_buffer_bounds(ctx);
+      /* Signal new buffer state so that swrast will update its clipping
+       * info (the CLIP_BIT flag).
+       */
+      ctx->NewState |= _NEW_BUFFERS;
+   }
+}
+
+
+
+/**
+ * XXX THIS IS OBSOLETE - drivers should take care of detecting window
+ * size changes and act accordingly, likely calling _mesa_resize_framebuffer().
+ *
+ * GL_MESA_resize_buffers extension.
+ *
+ * When this function is called, we'll ask the window system how large
+ * the current window is.  If it's a new size, we'll call the driver's
+ * ResizeBuffers function.  The driver will then resize its color buffers
+ * as needed, and maybe call the swrast's routine for reallocating
+ * swrast-managed depth/stencil/accum/etc buffers.
+ * \note This function should only be called through the GL API, not
+ * from device drivers (as was done in the past).
+ */
+void
+_mesa_resizebuffers( struct gl_context *ctx )
+{
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH( ctx );
+
+   if (MESA_VERBOSE & VERBOSE_API)
+      _mesa_debug(ctx, "glResizeBuffersMESA\n");
+
+   if (!ctx->Driver.GetBufferSize) {
+      return;
+   }
+
+   if (ctx->WinSysDrawBuffer) {
+      GLuint newWidth, newHeight;
+      struct gl_framebuffer *buffer = ctx->WinSysDrawBuffer;
+
+      assert(buffer->Name == 0);
+
+      /* ask device driver for size of output buffer */
+      ctx->Driver.GetBufferSize( buffer, &newWidth, &newHeight );
+
+      /* see if size of device driver's color buffer (window) has changed */
+      if (buffer->Width != newWidth || buffer->Height != newHeight) {
+         if (ctx->Driver.ResizeBuffers)
+            ctx->Driver.ResizeBuffers(ctx, buffer, newWidth, newHeight );
+      }
+   }
+
+   if (ctx->WinSysReadBuffer
+       && ctx->WinSysReadBuffer != ctx->WinSysDrawBuffer) {
+      GLuint newWidth, newHeight;
+      struct gl_framebuffer *buffer = ctx->WinSysReadBuffer;
+
+      assert(buffer->Name == 0);
+
+      /* ask device driver for size of read buffer */
+      ctx->Driver.GetBufferSize( buffer, &newWidth, &newHeight );
+
+      /* see if size of device driver's color buffer (window) has changed */
+      if (buffer->Width != newWidth || buffer->Height != newHeight) {
+         if (ctx->Driver.ResizeBuffers)
+            ctx->Driver.ResizeBuffers(ctx, buffer, newWidth, newHeight );
+      }
+   }
+
+   ctx->NewState |= _NEW_BUFFERS;  /* to update scissor / window bounds */
+}
+
+
+/*
+ * XXX THIS IS OBSOLETE
+ */
+void GLAPIENTRY
+_mesa_ResizeBuffersMESA( void )
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   if (ctx->Extensions.MESA_resize_buffers)
+      _mesa_resizebuffers( ctx );
+}
+
+
+
+/**
+ * Examine all the framebuffer's renderbuffers to update the Width/Height
+ * fields of the framebuffer.  If we have renderbuffers with different
+ * sizes, set the framebuffer's width and height to the min size.
+ * Note: this is only intended for user-created framebuffers, not
+ * window-system framebuffes.
+ */
+static void
+update_framebuffer_size(struct gl_context *ctx, struct gl_framebuffer *fb)
+{
+   GLuint minWidth = ~0, minHeight = ~0;
+   GLuint i;
+
+   /* user-created framebuffers only */
+   assert(fb->Name);
+
+   for (i = 0; i < BUFFER_COUNT; i++) {
+      struct gl_renderbuffer_attachment *att = &fb->Attachment[i];
+      const struct gl_renderbuffer *rb = att->Renderbuffer;
+      if (rb) {
+         minWidth = MIN2(minWidth, rb->Width);
+         minHeight = MIN2(minHeight, rb->Height);
+      }
+   }
+
+   if (minWidth != ~0) {
+      fb->Width = minWidth;
+      fb->Height = minHeight;
+   }
+   else {
+      fb->Width = 0;
+      fb->Height = 0;
+   }
+}
+
+
+/**
+ * Update the context's current drawing buffer's Xmin, Xmax, Ymin, Ymax fields.
+ * These values are computed from the buffer's width and height and
+ * the scissor box, if it's enabled.
+ * \param ctx  the GL context.
+ */
+void
+_mesa_update_draw_buffer_bounds(struct gl_context *ctx)
+{
+   struct gl_framebuffer *buffer = ctx->DrawBuffer;
+
+   if (!buffer)
+      return;
+
+   if (buffer->Name) {
+      /* user-created framebuffer size depends on the renderbuffers */
+      update_framebuffer_size(ctx, buffer);
+   }
+
+   buffer->_Xmin = 0;
+   buffer->_Ymin = 0;
+   buffer->_Xmax = buffer->Width;
+   buffer->_Ymax = buffer->Height;
+
+   if (ctx->Scissor.Enabled) {
+      if (ctx->Scissor.X > buffer->_Xmin) {
+	 buffer->_Xmin = ctx->Scissor.X;
+      }
+      if (ctx->Scissor.Y > buffer->_Ymin) {
+	 buffer->_Ymin = ctx->Scissor.Y;
+      }
+      if (ctx->Scissor.X + ctx->Scissor.Width < buffer->_Xmax) {
+	 buffer->_Xmax = ctx->Scissor.X + ctx->Scissor.Width;
+      }
+      if (ctx->Scissor.Y + ctx->Scissor.Height < buffer->_Ymax) {
+	 buffer->_Ymax = ctx->Scissor.Y + ctx->Scissor.Height;
+      }
+      /* finally, check for empty region */
+      if (buffer->_Xmin > buffer->_Xmax) {
+         buffer->_Xmin = buffer->_Xmax;
+      }
+      if (buffer->_Ymin > buffer->_Ymax) {
+         buffer->_Ymin = buffer->_Ymax;
+      }
+   }
+
+   ASSERT(buffer->_Xmin <= buffer->_Xmax);
+   ASSERT(buffer->_Ymin <= buffer->_Ymax);
+}
+
+
+/**
+ * The glGet queries of the framebuffer red/green/blue size, stencil size,
+ * etc. are satisfied by the fields of ctx->DrawBuffer->Visual.  These can
+ * change depending on the renderbuffer bindings.  This function updates
+ * the given framebuffer's Visual from the current renderbuffer bindings.
+ *
+ * This may apply to user-created framebuffers or window system framebuffers.
+ *
+ * Also note: ctx->DrawBuffer->Visual.depthBits might not equal
+ * ctx->DrawBuffer->Attachment[BUFFER_DEPTH].Renderbuffer.DepthBits.
+ * The former one is used to convert floating point depth values into
+ * integer Z values.
+ */
+void
+_mesa_update_framebuffer_visual(struct gl_context *ctx,
+				struct gl_framebuffer *fb)
+{
+   GLuint i;
+
+   memset(&fb->Visual, 0, sizeof(fb->Visual));
+   fb->Visual.rgbMode = GL_TRUE; /* assume this */
+
+#if 0 /* this _might_ be needed */
+   if (fb->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+      /* leave visual fields zero'd */
+      return;
+   }
+#endif
+
+   /* find first RGB renderbuffer */
+   for (i = 0; i < BUFFER_COUNT; i++) {
+      if (fb->Attachment[i].Renderbuffer) {
+         const struct gl_renderbuffer *rb = fb->Attachment[i].Renderbuffer;
+         const GLenum baseFormat = _mesa_get_format_base_format(rb->Format);
+         const gl_format fmt = rb->Format;
+
+         if (_mesa_is_legal_color_format(ctx, baseFormat)) {
+            fb->Visual.redBits = _mesa_get_format_bits(fmt, GL_RED_BITS);
+            fb->Visual.greenBits = _mesa_get_format_bits(fmt, GL_GREEN_BITS);
+            fb->Visual.blueBits = _mesa_get_format_bits(fmt, GL_BLUE_BITS);
+            fb->Visual.alphaBits = _mesa_get_format_bits(fmt, GL_ALPHA_BITS);
+            fb->Visual.rgbBits = fb->Visual.redBits
+               + fb->Visual.greenBits + fb->Visual.blueBits;
+            fb->Visual.floatMode = GL_FALSE;
+            fb->Visual.samples = rb->NumSamples;
+            if (_mesa_get_format_color_encoding(fmt) == GL_SRGB)
+                fb->Visual.sRGBCapable = ctx->Const.sRGBCapable;
+            break;
+         }
+      }
+   }
+
+   if (fb->Attachment[BUFFER_DEPTH].Renderbuffer) {
+      const struct gl_renderbuffer *rb =
+         fb->Attachment[BUFFER_DEPTH].Renderbuffer;
+      const gl_format fmt = rb->Format;
+      fb->Visual.haveDepthBuffer = GL_TRUE;
+      fb->Visual.depthBits = _mesa_get_format_bits(fmt, GL_DEPTH_BITS);
+   }
+
+   if (fb->Attachment[BUFFER_STENCIL].Renderbuffer) {
+      const struct gl_renderbuffer *rb =
+         fb->Attachment[BUFFER_STENCIL].Renderbuffer;
+      const gl_format fmt = rb->Format;
+      fb->Visual.haveStencilBuffer = GL_TRUE;
+      fb->Visual.stencilBits = _mesa_get_format_bits(fmt, GL_STENCIL_BITS);
+   }
+
+   if (fb->Attachment[BUFFER_ACCUM].Renderbuffer) {
+      const struct gl_renderbuffer *rb =
+         fb->Attachment[BUFFER_ACCUM].Renderbuffer;
+      const gl_format fmt = rb->Format;
+      fb->Visual.haveAccumBuffer = GL_TRUE;
+      fb->Visual.accumRedBits = _mesa_get_format_bits(fmt, GL_RED_BITS);
+      fb->Visual.accumGreenBits = _mesa_get_format_bits(fmt, GL_GREEN_BITS);
+      fb->Visual.accumBlueBits = _mesa_get_format_bits(fmt, GL_BLUE_BITS);
+      fb->Visual.accumAlphaBits = _mesa_get_format_bits(fmt, GL_ALPHA_BITS);
+   }
+
+   compute_depth_max(fb);
+}
+
+
+/**
+ * Update the framebuffer's _DepthBuffer field using the renderbuffer
+ * found at the given attachment index.
+ *
+ * If that attachment points to a combined GL_DEPTH_STENCIL renderbuffer,
+ * create and install a depth wrapper/adaptor.
+ *
+ * \param fb  the framebuffer whose _DepthBuffer field to update
+ * \param attIndex  indicates the renderbuffer to possibly wrap
+ */
+void
+_mesa_update_depth_buffer(struct gl_context *ctx,
+                          struct gl_framebuffer *fb,
+                          GLuint attIndex)
+{
+   struct gl_renderbuffer *depthRb;
+
+   /* only one possiblity for now */
+   ASSERT(attIndex == BUFFER_DEPTH);
+
+   depthRb = fb->Attachment[attIndex].Renderbuffer;
+
+   if (depthRb && _mesa_is_format_packed_depth_stencil(depthRb->Format)) {
+      /* The attached depth buffer is a GL_DEPTH_STENCIL renderbuffer */
+      if (!fb->_DepthBuffer
+          || fb->_DepthBuffer->Wrapped != depthRb
+          || _mesa_get_format_base_format(fb->_DepthBuffer->Format) != GL_DEPTH_COMPONENT) {
+         /* need to update wrapper */
+         struct gl_renderbuffer *wrapper
+            = _mesa_new_z24_renderbuffer_wrapper(ctx, depthRb);
+         _mesa_reference_renderbuffer(&fb->_DepthBuffer, wrapper);
+         ASSERT(fb->_DepthBuffer->Wrapped == depthRb);
+      }
+   }
+   else {
+      /* depthRb may be null */
+      _mesa_reference_renderbuffer(&fb->_DepthBuffer, depthRb);
+   }
+}
+
+
+/**
+ * Update the framebuffer's _StencilBuffer field using the renderbuffer
+ * found at the given attachment index.
+ *
+ * If that attachment points to a combined GL_DEPTH_STENCIL renderbuffer,
+ * create and install a stencil wrapper/adaptor.
+ *
+ * \param fb  the framebuffer whose _StencilBuffer field to update
+ * \param attIndex  indicates the renderbuffer to possibly wrap
+ */
+void
+_mesa_update_stencil_buffer(struct gl_context *ctx,
+                            struct gl_framebuffer *fb,
+                            GLuint attIndex)
+{
+   struct gl_renderbuffer *stencilRb;
+
+   ASSERT(attIndex == BUFFER_DEPTH ||
+          attIndex == BUFFER_STENCIL);
+
+   stencilRb = fb->Attachment[attIndex].Renderbuffer;
+
+   if (stencilRb && _mesa_is_format_packed_depth_stencil(stencilRb->Format)) {
+      /* The attached stencil buffer is a GL_DEPTH_STENCIL renderbuffer */
+      if (!fb->_StencilBuffer
+          || fb->_StencilBuffer->Wrapped != stencilRb
+          || _mesa_get_format_base_format(fb->_StencilBuffer->Format) != GL_STENCIL_INDEX) {
+         /* need to update wrapper */
+         struct gl_renderbuffer *wrapper
+            = _mesa_new_s8_renderbuffer_wrapper(ctx, stencilRb);
+         _mesa_reference_renderbuffer(&fb->_StencilBuffer, wrapper);
+         ASSERT(fb->_StencilBuffer->Wrapped == stencilRb);
+      }
+   }
+   else {
+      /* stencilRb may be null */
+      _mesa_reference_renderbuffer(&fb->_StencilBuffer, stencilRb);
+   }
+}
+
+
+/*
+ * Example DrawBuffers scenarios:
+ *
+ * 1. glDrawBuffer(GL_FRONT_AND_BACK), fixed-func or shader writes to
+ * "gl_FragColor" or program writes to the "result.color" register:
+ *
+ *   fragment color output   renderbuffer
+ *   ---------------------   ---------------
+ *   color[0]                Front, Back
+ *
+ *
+ * 2. glDrawBuffers(3, [GL_FRONT, GL_AUX0, GL_AUX1]), shader writes to
+ * gl_FragData[i] or program writes to result.color[i] registers:
+ *
+ *   fragment color output   renderbuffer
+ *   ---------------------   ---------------
+ *   color[0]                Front
+ *   color[1]                Aux0
+ *   color[3]                Aux1
+ *
+ *
+ * 3. glDrawBuffers(3, [GL_FRONT, GL_AUX0, GL_AUX1]) and shader writes to
+ * gl_FragColor, or fixed function:
+ *
+ *   fragment color output   renderbuffer
+ *   ---------------------   ---------------
+ *   color[0]                Front, Aux0, Aux1
+ *
+ *
+ * In either case, the list of renderbuffers is stored in the
+ * framebuffer->_ColorDrawBuffers[] array and
+ * framebuffer->_NumColorDrawBuffers indicates the number of buffers.
+ * The renderer (like swrast) has to look at the current fragment shader
+ * to see if it writes to gl_FragColor vs. gl_FragData[i] to determine
+ * how to map color outputs to renderbuffers.
+ *
+ * Note that these two calls are equivalent (for fixed function fragment
+ * shading anyway):
+ *   a)  glDrawBuffer(GL_FRONT_AND_BACK);  (assuming non-stereo framebuffer)
+ *   b)  glDrawBuffers(2, [GL_FRONT_LEFT, GL_BACK_LEFT]);
+ */
+
+
+
+
+/**
+ * Update the (derived) list of color drawing renderbuffer pointers.
+ * Later, when we're rendering we'll loop from 0 to _NumColorDrawBuffers
+ * writing colors.
+ */
+static void
+update_color_draw_buffers(struct gl_context *ctx, struct gl_framebuffer *fb)
+{
+   GLuint output;
+
+   /* set 0th buffer to NULL now in case _NumColorDrawBuffers is zero */
+   fb->_ColorDrawBuffers[0] = NULL;
+
+   for (output = 0; output < fb->_NumColorDrawBuffers; output++) {
+      GLint buf = fb->_ColorDrawBufferIndexes[output];
+      if (buf >= 0) {
+         fb->_ColorDrawBuffers[output] = fb->Attachment[buf].Renderbuffer;
+      }
+      else {
+         fb->_ColorDrawBuffers[output] = NULL;
+      }
+   }
+}
+
+
+/**
+ * Update the (derived) color read renderbuffer pointer.
+ * Unlike the DrawBuffer, we can only read from one (or zero) color buffers.
+ */
+static void
+update_color_read_buffer(struct gl_context *ctx, struct gl_framebuffer *fb)
+{
+   (void) ctx;
+   if (fb->_ColorReadBufferIndex == -1 ||
+       fb->DeletePending ||
+       fb->Width == 0 ||
+       fb->Height == 0) {
+      fb->_ColorReadBuffer = NULL; /* legal! */
+   }
+   else {
+      ASSERT(fb->_ColorReadBufferIndex >= 0);
+      ASSERT(fb->_ColorReadBufferIndex < BUFFER_COUNT);
+      fb->_ColorReadBuffer
+         = fb->Attachment[fb->_ColorReadBufferIndex].Renderbuffer;
+   }
+}
+
+
+/**
+ * Update a gl_framebuffer's derived state.
+ *
+ * Specifically, update these framebuffer fields:
+ *    _ColorDrawBuffers
+ *    _NumColorDrawBuffers
+ *    _ColorReadBuffer
+ *    _DepthBuffer
+ *    _StencilBuffer
+ *
+ * If the framebuffer is user-created, make sure it's complete.
+ *
+ * The following functions (at least) can effect framebuffer state:
+ * glReadBuffer, glDrawBuffer, glDrawBuffersARB, glFramebufferRenderbufferEXT,
+ * glRenderbufferStorageEXT.
+ */
+static void
+update_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb)
+{
+   if (fb->Name == 0) {
+      /* This is a window-system framebuffer */
+      /* Need to update the FB's GL_DRAW_BUFFER state to match the
+       * context state (GL_READ_BUFFER too).
+       */
+      if (fb->ColorDrawBuffer[0] != ctx->Color.DrawBuffer[0]) {
+         _mesa_drawbuffers(ctx, ctx->Const.MaxDrawBuffers,
+                           ctx->Color.DrawBuffer, NULL);
+      }
+      if (fb->ColorReadBuffer != ctx->Pixel.ReadBuffer) {
+         
+      }
+   }
+   else {
+      /* This is a user-created framebuffer.
+       * Completeness only matters for user-created framebuffers.
+       */
+      if (fb->_Status != GL_FRAMEBUFFER_COMPLETE) {
+         _mesa_test_framebuffer_completeness(ctx, fb);
+      }
+   }
+
+   /* Strictly speaking, we don't need to update the draw-state
+    * if this FB is bound as ctx->ReadBuffer (and conversely, the
+    * read-state if this FB is bound as ctx->DrawBuffer), but no
+    * harm.
+    */
+   update_color_draw_buffers(ctx, fb);
+   update_color_read_buffer(ctx, fb);
+   _mesa_update_depth_buffer(ctx, fb, BUFFER_DEPTH);
+   _mesa_update_stencil_buffer(ctx, fb, BUFFER_STENCIL);
+
+   compute_depth_max(fb);
+}
+
+
+/**
+ * Update state related to the current draw/read framebuffers.
+ */
+void
+_mesa_update_framebuffer(struct gl_context *ctx)
+{
+   struct gl_framebuffer *drawFb;
+   struct gl_framebuffer *readFb;
+
+   assert(ctx);
+   drawFb = ctx->DrawBuffer;
+   readFb = ctx->ReadBuffer;
+
+   update_framebuffer(ctx, drawFb);
+   if (readFb != drawFb)
+      update_framebuffer(ctx, readFb);
+}
+
+
+/**
+ * Check if the renderbuffer for a read operation (glReadPixels, glCopyPixels,
+ * glCopyTex[Sub]Image, etc) exists.
+ * \param format  a basic image format such as GL_RGB, GL_RGBA, GL_ALPHA,
+ *                GL_DEPTH_COMPONENT, etc. or GL_COLOR, GL_DEPTH, GL_STENCIL.
+ * \return GL_TRUE if buffer exists, GL_FALSE otherwise
+ */
+GLboolean
+_mesa_source_buffer_exists(struct gl_context *ctx, GLenum format)
+{
+   const struct gl_renderbuffer_attachment *att = ctx->ReadBuffer->Attachment;
+
+   /* If we don't know the framebuffer status, update it now */
+   if (ctx->ReadBuffer->_Status == 0) {
+      _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
+   }
+
+   if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+      return GL_FALSE;
+   }
+
+   switch (format) {
+   case GL_COLOR:
+   case GL_RED:
+   case GL_GREEN:
+   case GL_BLUE:
+   case GL_ALPHA:
+   case GL_LUMINANCE:
+   case GL_LUMINANCE_ALPHA:
+   case GL_INTENSITY:
+   case GL_RG:
+   case GL_RGB:
+   case GL_BGR:
+   case GL_RGBA:
+   case GL_BGRA:
+   case GL_ABGR_EXT:
+   case GL_COLOR_INDEX:
+   case GL_RED_INTEGER_EXT:
+   case GL_GREEN_INTEGER_EXT:
+   case GL_BLUE_INTEGER_EXT:
+   case GL_ALPHA_INTEGER_EXT:
+   case GL_RGB_INTEGER_EXT:
+   case GL_RGBA_INTEGER_EXT:
+   case GL_BGR_INTEGER_EXT:
+   case GL_BGRA_INTEGER_EXT:
+   case GL_LUMINANCE_INTEGER_EXT:
+   case GL_LUMINANCE_ALPHA_INTEGER_EXT:
+      if (ctx->ReadBuffer->_ColorReadBuffer == NULL) {
+         return GL_FALSE;
+      }
+      ASSERT(_mesa_get_format_bits(ctx->ReadBuffer->_ColorReadBuffer->Format, GL_RED_BITS) > 0 ||
+             _mesa_get_format_bits(ctx->ReadBuffer->_ColorReadBuffer->Format, GL_ALPHA_BITS) > 0 ||
+             _mesa_get_format_bits(ctx->ReadBuffer->_ColorReadBuffer->Format, GL_INDEX_BITS) > 0);
+      break;
+   case GL_DEPTH:
+   case GL_DEPTH_COMPONENT:
+      if (!att[BUFFER_DEPTH].Renderbuffer) {
+         return GL_FALSE;
+      }
+      /*ASSERT(att[BUFFER_DEPTH].Renderbuffer->DepthBits > 0);*/
+      break;
+   case GL_STENCIL:
+   case GL_STENCIL_INDEX:
+      if (!att[BUFFER_STENCIL].Renderbuffer) {
+         return GL_FALSE;
+      }
+      /*ASSERT(att[BUFFER_STENCIL].Renderbuffer->StencilBits > 0);*/
+      break;
+   case GL_DEPTH_STENCIL_EXT:
+      if (!att[BUFFER_DEPTH].Renderbuffer ||
+          !att[BUFFER_STENCIL].Renderbuffer) {
+         return GL_FALSE;
+      }
+      /*
+      ASSERT(att[BUFFER_DEPTH].Renderbuffer->DepthBits > 0);
+      ASSERT(att[BUFFER_STENCIL].Renderbuffer->StencilBits > 0);
+      */
+      break;
+   default:
+      _mesa_problem(ctx,
+                    "Unexpected format 0x%x in _mesa_source_buffer_exists",
+                    format);
+      return GL_FALSE;
+   }
+
+   /* OK */
+   return GL_TRUE;
+}
+
+
+/**
+ * As above, but for drawing operations.
+ * XXX could do some code merging w/ above function.
+ */
+GLboolean
+_mesa_dest_buffer_exists(struct gl_context *ctx, GLenum format)
+{
+   const struct gl_renderbuffer_attachment *att = ctx->DrawBuffer->Attachment;
+
+   /* If we don't know the framebuffer status, update it now */
+   if (ctx->DrawBuffer->_Status == 0) {
+      _mesa_test_framebuffer_completeness(ctx, ctx->DrawBuffer);
+   }
+
+   if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+      return GL_FALSE;
+   }
+
+   switch (format) {
+   case GL_COLOR:
+   case GL_RED:
+   case GL_GREEN:
+   case GL_BLUE:
+   case GL_ALPHA:
+   case GL_LUMINANCE:
+   case GL_LUMINANCE_ALPHA:
+   case GL_INTENSITY:
+   case GL_RGB:
+   case GL_BGR:
+   case GL_RGBA:
+   case GL_BGRA:
+   case GL_ABGR_EXT:
+   case GL_COLOR_INDEX:
+   case GL_RED_INTEGER_EXT:
+   case GL_GREEN_INTEGER_EXT:
+   case GL_BLUE_INTEGER_EXT:
+   case GL_ALPHA_INTEGER_EXT:
+   case GL_RGB_INTEGER_EXT:
+   case GL_RGBA_INTEGER_EXT:
+   case GL_BGR_INTEGER_EXT:
+   case GL_BGRA_INTEGER_EXT:
+   case GL_LUMINANCE_INTEGER_EXT:
+   case GL_LUMINANCE_ALPHA_INTEGER_EXT:
+      /* Nothing special since GL_DRAW_BUFFER could be GL_NONE. */
+      /* Could assert that colorbuffer has RedBits > 0 */
+      break;
+   case GL_DEPTH:
+   case GL_DEPTH_COMPONENT:
+      if (!att[BUFFER_DEPTH].Renderbuffer) {
+         return GL_FALSE;
+      }
+      /*ASSERT(att[BUFFER_DEPTH].Renderbuffer->DepthBits > 0);*/
+      break;
+   case GL_STENCIL:
+   case GL_STENCIL_INDEX:
+      if (!att[BUFFER_STENCIL].Renderbuffer) {
+         return GL_FALSE;
+      }
+      /*ASSERT(att[BUFFER_STENCIL].Renderbuffer->StencilBits > 0);*/
+      break;
+   case GL_DEPTH_STENCIL_EXT:
+      if (!att[BUFFER_DEPTH].Renderbuffer ||
+          !att[BUFFER_STENCIL].Renderbuffer) {
+         return GL_FALSE;
+      }
+      /*
+      ASSERT(att[BUFFER_DEPTH].Renderbuffer->DepthBits > 0);
+      ASSERT(att[BUFFER_STENCIL].Renderbuffer->StencilBits > 0);
+      */
+      break;
+   default:
+      _mesa_problem(ctx,
+                    "Unexpected format 0x%x in _mesa_dest_buffer_exists",
+                    format);
+      return GL_FALSE;
+   }
+
+   /* OK */
+   return GL_TRUE;
+}
+
+
+/**
+ * Used to answer the GL_IMPLEMENTATION_COLOR_READ_FORMAT_OES query.
+ */
+GLenum
+_mesa_get_color_read_format(struct gl_context *ctx)
+{
+   switch (ctx->ReadBuffer->_ColorReadBuffer->Format) {
+   case MESA_FORMAT_ARGB8888:
+      return GL_BGRA;
+   case MESA_FORMAT_RGB565:
+      return GL_BGR;
+   default:
+      return GL_RGBA;
+   }
+}
+
+
+/**
+ * Used to answer the GL_IMPLEMENTATION_COLOR_READ_TYPE_OES query.
+ */
+GLenum
+_mesa_get_color_read_type(struct gl_context *ctx)
+{
+   switch (ctx->ReadBuffer->_ColorReadBuffer->Format) {
+   case MESA_FORMAT_ARGB8888:
+      return GL_UNSIGNED_BYTE;
+   case MESA_FORMAT_RGB565:
+      return GL_UNSIGNED_SHORT_5_6_5_REV;
+   default:
+      return GL_UNSIGNED_BYTE;
+   }
+}
+
+
+/**
+ * Print framebuffer info to stderr, for debugging.
+ */
+void
+_mesa_print_framebuffer(const struct gl_framebuffer *fb)
+{
+   GLuint i;
+
+   fprintf(stderr, "Mesa Framebuffer %u at %p\n", fb->Name, (void *) fb);
+   fprintf(stderr, "  Size: %u x %u  Status: %s\n", fb->Width, fb->Height,
+           _mesa_lookup_enum_by_nr(fb->_Status));
+   fprintf(stderr, "  Attachments:\n");
+
+   for (i = 0; i < BUFFER_COUNT; i++) {
+      const struct gl_renderbuffer_attachment *att = &fb->Attachment[i];
+      if (att->Type == GL_TEXTURE) {
+         const struct gl_texture_image *texImage;
+         fprintf(stderr,
+                 "  %2d: Texture %u, level %u, face %u, slice %u, complete %d\n",
+                 i, att->Texture->Name, att->TextureLevel, att->CubeMapFace,
+                 att->Zoffset, att->Complete);
+         texImage = att->Texture->Image[att->CubeMapFace][att->TextureLevel];
+         fprintf(stderr, "       Size: %u x %u x %u  Format %s\n",
+                 texImage->Width, texImage->Height, texImage->Depth,
+                 _mesa_get_format_name(texImage->TexFormat));
+      }
+      else if (att->Type == GL_RENDERBUFFER) {
+         fprintf(stderr, "  %2d: Renderbuffer %u, complete %d\n",
+                 i, att->Renderbuffer->Name, att->Complete);
+         fprintf(stderr, "       Size: %u x %u  Format %s\n",
+                 att->Renderbuffer->Width, att->Renderbuffer->Height,
+                 _mesa_get_format_name(att->Renderbuffer->Format));
+      }
+      else {
+         fprintf(stderr, "  %2d: none\n", i);
+      }
+   }
+}
diff --git a/mesalib/src/mesa/main/mtypes.h b/mesalib/src/mesa/main/mtypes.h
index 37f39ceef..4e7621239 100644
--- a/mesalib/src/mesa/main/mtypes.h
+++ b/mesalib/src/mesa/main/mtypes.h
@@ -2710,6 +2710,9 @@ struct gl_constants
 
    /** GL_EXT_gpu_shader4 */
    GLint MinProgramTexelOffset, MaxProgramTexelOffset;
+
+   /* GL_EXT_framebuffer_sRGB */
+   GLboolean sRGBCapable; /* can enable sRGB blend/update on FBOs */
 };
 
 
diff --git a/mesalib/src/mesa/main/varray.c b/mesalib/src/mesa/main/varray.c
index 39855cbb0..cfed4b506 100644
--- a/mesalib/src/mesa/main/varray.c
+++ b/mesalib/src/mesa/main/varray.c
@@ -1,1209 +1,1205 @@
-/*

- * Mesa 3-D graphics library

- * Version:  7.6

- *

- * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.

- * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.

- *

- * Permission is hereby granted, free of charge, to any person obtaining a

- * copy of this software and associated documentation files (the "Software"),

- * to deal in the Software without restriction, including without limitation

- * the rights to use, copy, modify, merge, publish, distribute, sublicense,

- * and/or sell copies of the Software, and to permit persons to whom the

- * Software is furnished to do so, subject to the following conditions:

- *

- * The above copyright notice and this permission notice shall be included

- * in all copies or substantial portions of the Software.

- *

- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

- */

-

-

-#include "glheader.h"

-#include "imports.h"

-#include "bufferobj.h"

-#include "context.h"

-#include "enable.h"

-#include "enums.h"

-#include "hash.h"

-#include "image.h"

-#include "macros.h"

-#include "mfeatures.h"

-#include "mtypes.h"

-#include "varray.h"

-#include "arrayobj.h"

-#include "main/dispatch.h"

-

-

-/** Used to do error checking for GL_EXT_vertex_array_bgra */

-#define BGRA_OR_4  5

-

-

-/** Used to indicate which GL datatypes are accepted by each of the

- * glVertex/Color/Attrib/EtcPointer() functions.

- */

-#define BOOL_BIT             0x1

-#define BYTE_BIT             0x2

-#define UNSIGNED_BYTE_BIT    0x4

-#define SHORT_BIT            0x8

-#define UNSIGNED_SHORT_BIT   0x10

-#define INT_BIT              0x20

-#define UNSIGNED_INT_BIT     0x40

-#define HALF_BIT             0x80

-#define FLOAT_BIT            0x100

-#define DOUBLE_BIT           0x200

-#define FIXED_BIT            0x400

-

-

-

-/** Convert GL datatype enum into a <type>_BIT value seen above */

-static GLbitfield

-type_to_bit(const struct gl_context *ctx, GLenum type)

-{

-   switch (type) {

-   case GL_BOOL:

-      return BOOL_BIT;

-   case GL_BYTE:

-      return BYTE_BIT;

-   case GL_UNSIGNED_BYTE:

-      return UNSIGNED_BYTE_BIT;

-   case GL_SHORT:

-      return SHORT_BIT;

-   case GL_UNSIGNED_SHORT:

-      return UNSIGNED_SHORT_BIT;

-   case GL_INT:

-      return INT_BIT;

-   case GL_UNSIGNED_INT:

-      return UNSIGNED_INT_BIT;

-   case GL_HALF_FLOAT:

-      if (ctx->Extensions.ARB_half_float_vertex)

-         return HALF_BIT;

-      else

-         return 0x0;

-   case GL_FLOAT:

-      return FLOAT_BIT;

-   case GL_DOUBLE:

-      return DOUBLE_BIT;

-   case GL_FIXED:

-      return FIXED_BIT;

-   default:

-      return 0;

-   }

-}

-

-

-/**

- * Do error checking and update state for glVertex/Color/TexCoord/...Pointer

- * functions.

- *

- * \param func  name of calling function used for error reporting

- * \param array  the array to update

- * \param dirtyBit  which bit to set in ctx->Array.NewState for this array

- * \param legalTypes  bitmask of *_BIT above indicating legal datatypes

- * \param sizeMin  min allowable size value

- * \param sizeMax  max allowable size value (may also be BGRA_OR_4)

- * \param size  components per element (1, 2, 3 or 4)

- * \param type  datatype of each component (GL_FLOAT, GL_INT, etc)

- * \param stride  stride between elements, in elements

- * \param normalized  are integer types converted to floats in [-1, 1]?

- * \param integer  integer-valued values (will not be normalized to [-1,1])

- * \param ptr  the address (or offset inside VBO) of the array data

- */

-static void

-update_array(struct gl_context *ctx,

-             const char *func,

-             struct gl_client_array *array,

-             GLbitfield dirtyBit, GLbitfield legalTypesMask,

-             GLint sizeMin, GLint sizeMax,

-             GLint size, GLenum type, GLsizei stride,

-             GLboolean normalized, GLboolean integer,

-             const GLvoid *ptr)

-{

-   GLbitfield typeBit;

-   GLsizei elementSize;

-   GLenum format = GL_RGBA;

-

-   if (ctx->API != API_OPENGLES && ctx->API != API_OPENGLES2) {

-      /* fixed point arrays / data is only allowed with OpenGL ES 1.x/2.0 */

-      legalTypesMask &= ~FIXED_BIT;

-   }

-

-   typeBit = type_to_bit(ctx, type);

-   if (typeBit == 0x0 || (typeBit & legalTypesMask) == 0x0) {

-      _mesa_error(ctx, GL_INVALID_ENUM, "%s(type = %s)",

-                  func, _mesa_lookup_enum_by_nr(type));

-      return;

-   }

-

-   /* Do size parameter checking.

-    * If sizeMax = BGRA_OR_4 it means that size = GL_BGRA is legal and

-    * must be handled specially.

-    */

-   if (ctx->Extensions.EXT_vertex_array_bgra &&

-       sizeMax == BGRA_OR_4 &&

-       size == GL_BGRA) {

-      if (type != GL_UNSIGNED_BYTE) {

-         _mesa_error(ctx, GL_INVALID_VALUE, "%s(GL_BGRA/GLubyte)", func);

-         return;

-      }

-      format = GL_BGRA;

-      size = 4;

-   }

-   else if (size < sizeMin || size > sizeMax || size > 4) {

-      _mesa_error(ctx, GL_INVALID_VALUE, "%s(size=%d)", func, size);

-      return;

-   }

-

-   ASSERT(size <= 4);

-

-   if (stride < 0) {

-      _mesa_error( ctx, GL_INVALID_VALUE, "%s(stride=%d)", func, stride );

-      return;

-   }

-

-   if (ctx->Array.ArrayObj->VBOonly &&

-       ctx->Array.ArrayBufferObj->Name == 0) {

-      /* GL_ARB_vertex_array_object requires that all arrays reside in VBOs.

-       * Generate GL_INVALID_OPERATION if that's not true.

-       */

-      _mesa_error(ctx, GL_INVALID_OPERATION, "%s(non-VBO array)", func);

-      return;

-   }

-

-   elementSize = _mesa_sizeof_type(type) * size;

-

-   array->Size = size;

-   array->Type = type;

-   array->Format = format;

-   array->Stride = stride;

-   array->StrideB = stride ? stride : elementSize;

-   array->Normalized = normalized;

-   array->Ptr = (const GLubyte *) ptr;

-   array->_ElementSize = elementSize;

-

-   _mesa_reference_buffer_object(ctx, &array->BufferObj,

-                                 ctx->Array.ArrayBufferObj);

-

-   ctx->NewState |= _NEW_ARRAY;

-   ctx->Array.NewState |= dirtyBit;

-}

-

-

-void GLAPIENTRY

-_mesa_VertexPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr)

-{

-   GLbitfield legalTypes = (SHORT_BIT | INT_BIT | FLOAT_BIT |

-                            DOUBLE_BIT | HALF_BIT | FIXED_BIT);

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

-

-   if (ctx->API == API_OPENGLES)

-      legalTypes |= BYTE_BIT;

-

-   update_array(ctx, "glVertexPointer",

-                &ctx->Array.ArrayObj->Vertex, _NEW_ARRAY_VERTEX,

-                legalTypes, 2, 4,

-                size, type, stride, GL_FALSE, GL_FALSE, ptr);

-}

-

-

-void GLAPIENTRY

-_mesa_NormalPointer(GLenum type, GLsizei stride, const GLvoid *ptr )

-{

-   const GLbitfield legalTypes = (BYTE_BIT | SHORT_BIT | INT_BIT |

-                                  HALF_BIT | FLOAT_BIT | DOUBLE_BIT |

-                                  FIXED_BIT);

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

-

-   update_array(ctx, "glNormalPointer",

-                &ctx->Array.ArrayObj->Normal, _NEW_ARRAY_NORMAL,

-                legalTypes, 3, 3,

-                3, type, stride, GL_TRUE, GL_FALSE, ptr);

-}

-

-

-void GLAPIENTRY

-_mesa_ColorPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr)

-{

-   const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT |

-                                  SHORT_BIT | UNSIGNED_SHORT_BIT |

-                                  INT_BIT | UNSIGNED_INT_BIT |

-                                  HALF_BIT | FLOAT_BIT | DOUBLE_BIT |

-                                  FIXED_BIT);

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

-

-   update_array(ctx, "glColorPointer",

-                &ctx->Array.ArrayObj->Color, _NEW_ARRAY_COLOR0,

-                legalTypes, 3, BGRA_OR_4,

-                size, type, stride, GL_TRUE, GL_FALSE, ptr);

-}

-

-

-void GLAPIENTRY

-_mesa_FogCoordPointerEXT(GLenum type, GLsizei stride, const GLvoid *ptr)

-{

-   const GLbitfield legalTypes = (HALF_BIT | FLOAT_BIT | DOUBLE_BIT);

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

-

-   update_array(ctx, "glFogCoordPointer",

-                &ctx->Array.ArrayObj->FogCoord, _NEW_ARRAY_FOGCOORD,

-                legalTypes, 1, 1,

-                1, type, stride, GL_FALSE, GL_FALSE, ptr);

-}

-

-

-void GLAPIENTRY

-_mesa_IndexPointer(GLenum type, GLsizei stride, const GLvoid *ptr)

-{

-   const GLbitfield legalTypes = (UNSIGNED_BYTE_BIT | SHORT_BIT | INT_BIT |

-                                  FLOAT_BIT | DOUBLE_BIT);

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

-

-   update_array(ctx, "glIndexPointer",

-                &ctx->Array.ArrayObj->Index, _NEW_ARRAY_INDEX,

-                legalTypes, 1, 1,

-                1, type, stride, GL_FALSE, GL_FALSE, ptr);

-}

-

-

-void GLAPIENTRY

-_mesa_SecondaryColorPointerEXT(GLint size, GLenum type,

-			       GLsizei stride, const GLvoid *ptr)

-{

-   const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT |

-                                  SHORT_BIT | UNSIGNED_SHORT_BIT |

-                                  INT_BIT | UNSIGNED_INT_BIT |

-                                  HALF_BIT | FLOAT_BIT | DOUBLE_BIT);

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

-

-   update_array(ctx, "glSecondaryColorPointer",

-                &ctx->Array.ArrayObj->SecondaryColor, _NEW_ARRAY_COLOR1,

-                legalTypes, 3, BGRA_OR_4,

-                size, type, stride, GL_TRUE, GL_FALSE, ptr);

-}

-

-

-void GLAPIENTRY

-_mesa_TexCoordPointer(GLint size, GLenum type, GLsizei stride,

-                      const GLvoid *ptr)

-{

-   GLbitfield legalTypes = (SHORT_BIT | INT_BIT |

-                            HALF_BIT | FLOAT_BIT | DOUBLE_BIT |

-                            FIXED_BIT);

-   GET_CURRENT_CONTEXT(ctx);

-   const GLuint unit = ctx->Array.ActiveTexture;

-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

-

-   if (ctx->API == API_OPENGLES)

-      legalTypes |= BYTE_BIT;

-

-   ASSERT(unit < Elements(ctx->Array.ArrayObj->TexCoord));

-

-   update_array(ctx, "glTexCoordPointer",

-                &ctx->Array.ArrayObj->TexCoord[unit],

-                _NEW_ARRAY_TEXCOORD(unit),

-                legalTypes, 1, 4,

-                size, type, stride, GL_FALSE, GL_FALSE,

-                ptr);

-}

-

-

-void GLAPIENTRY

-_mesa_EdgeFlagPointer(GLsizei stride, const GLvoid *ptr)

-{

-   const GLbitfield legalTypes = UNSIGNED_BYTE_BIT;

-   /* see table 2.4 edits in GL_EXT_gpu_shader4 spec: */

-   const GLboolean integer = GL_TRUE;

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

-

-   update_array(ctx, "glEdgeFlagPointer",

-                &ctx->Array.ArrayObj->EdgeFlag, _NEW_ARRAY_EDGEFLAG,

-                legalTypes, 1, 1,

-                1, GL_UNSIGNED_BYTE, stride, GL_FALSE, integer, ptr);

-}

-

-

-void GLAPIENTRY

-_mesa_PointSizePointer(GLenum type, GLsizei stride, const GLvoid *ptr)

-{

-   const GLbitfield legalTypes = (FLOAT_BIT | FIXED_BIT);

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

-

-   if (ctx->API != API_OPENGLES) {

-      _mesa_error(ctx, GL_INVALID_OPERATION,

-                  "glPointSizePointer(ES 1.x only)");

-      return;

-   }

-      

-   update_array(ctx, "glPointSizePointer",

-                &ctx->Array.ArrayObj->PointSize, _NEW_ARRAY_POINT_SIZE,

-                legalTypes, 1, 1,

-                1, type, stride, GL_FALSE, GL_FALSE, ptr);

-}

-

-

-#if FEATURE_NV_vertex_program

-/**

- * Set a vertex attribute array.

- * Note that these arrays DO alias the conventional GL vertex arrays

- * (position, normal, color, fog, texcoord, etc).

- * The generic attribute slots at #16 and above are not touched.

- */

-void GLAPIENTRY

-_mesa_VertexAttribPointerNV(GLuint index, GLint size, GLenum type,

-                            GLsizei stride, const GLvoid *ptr)

-{

-   const GLbitfield legalTypes = (UNSIGNED_BYTE_BIT | SHORT_BIT |

-                                  FLOAT_BIT | DOUBLE_BIT);

-   GLboolean normalized = GL_FALSE;

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (index >= MAX_NV_VERTEX_PROGRAM_INPUTS) {

-      _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerNV(index)");

-      return;

-   }

-

-   if (type == GL_UNSIGNED_BYTE && size != 4) {

-      _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerNV(size!=4)");

-      return;

-   }

-

-   update_array(ctx, "glVertexAttribPointerNV",

-                &ctx->Array.ArrayObj->VertexAttrib[index],

-                _NEW_ARRAY_ATTRIB(index),

-                legalTypes, 1, BGRA_OR_4,

-                size, type, stride, normalized, GL_FALSE, ptr);

-}

-#endif

-

-

-#if FEATURE_ARB_vertex_program

-/**

- * Set a generic vertex attribute array.

- * Note that these arrays DO NOT alias the conventional GL vertex arrays

- * (position, normal, color, fog, texcoord, etc).

- */

-void GLAPIENTRY

-_mesa_VertexAttribPointerARB(GLuint index, GLint size, GLenum type,

-                             GLboolean normalized,

-                             GLsizei stride, const GLvoid *ptr)

-{

-   const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT |

-                                  SHORT_BIT | UNSIGNED_SHORT_BIT |

-                                  INT_BIT | UNSIGNED_INT_BIT |

-                                  HALF_BIT | FLOAT_BIT | DOUBLE_BIT |

-                                  FIXED_BIT);

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (index >= ctx->Const.VertexProgram.MaxAttribs) {

-      _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerARB(index)");

-      return;

-   }

-

-   update_array(ctx, "glVertexAttribPointer",

-                &ctx->Array.ArrayObj->VertexAttrib[index],

-                _NEW_ARRAY_ATTRIB(index),

-                legalTypes, 1, BGRA_OR_4,

-                size, type, stride, normalized, GL_FALSE, ptr);

-}

-#endif

-

-

-/**

- * GL_EXT_gpu_shader4 / GL 3.0.

- * Set an integer-valued vertex attribute array.

- * Note that these arrays DO NOT alias the conventional GL vertex arrays

- * (position, normal, color, fog, texcoord, etc).

- */

-void GLAPIENTRY

-_mesa_VertexAttribIPointer(GLuint index, GLint size, GLenum type,

-                           GLsizei stride, const GLvoid *ptr)

-{

-   const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT |

-                                  SHORT_BIT | UNSIGNED_SHORT_BIT |

-                                  INT_BIT | UNSIGNED_INT_BIT);

-   const GLboolean normalized = GL_FALSE;

-   const GLboolean integer = GL_TRUE;

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (index >= ctx->Const.VertexProgram.MaxAttribs) {

-      _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribIPointer(index)");

-      return;

-   }

-

-   update_array(ctx, "glVertexAttribIPointer",

-                &ctx->Array.ArrayObj->VertexAttrib[index],

-                _NEW_ARRAY_ATTRIB(index),

-                legalTypes, 1, 4,

-                size, type, stride, normalized, integer, ptr);

-}

-

-

-

-void GLAPIENTRY

-_mesa_EnableVertexAttribArrayARB(GLuint index)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (index >= ctx->Const.VertexProgram.MaxAttribs) {

-      _mesa_error(ctx, GL_INVALID_VALUE,

-                  "glEnableVertexAttribArrayARB(index)");

-      return;

-   }

-

-   ASSERT(index < Elements(ctx->Array.ArrayObj->VertexAttrib));

-

-   FLUSH_VERTICES(ctx, _NEW_ARRAY);

-   ctx->Array.ArrayObj->VertexAttrib[index].Enabled = GL_TRUE;

-   ctx->Array.ArrayObj->_Enabled |= _NEW_ARRAY_ATTRIB(index);

-   ctx->Array.NewState |= _NEW_ARRAY_ATTRIB(index);

-}

-

-

-void GLAPIENTRY

-_mesa_DisableVertexAttribArrayARB(GLuint index)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (index >= ctx->Const.VertexProgram.MaxAttribs) {

-      _mesa_error(ctx, GL_INVALID_VALUE,

-                  "glEnableVertexAttribArrayARB(index)");

-      return;

-   }

-

-   ASSERT(index < Elements(ctx->Array.ArrayObj->VertexAttrib));

-

-   FLUSH_VERTICES(ctx, _NEW_ARRAY);

-   ctx->Array.ArrayObj->VertexAttrib[index].Enabled = GL_FALSE;

-   ctx->Array.ArrayObj->_Enabled &= ~_NEW_ARRAY_ATTRIB(index);

-   ctx->Array.NewState |= _NEW_ARRAY_ATTRIB(index);

-}

-

-

-/**

- * Return info for a vertex attribute array (no alias with legacy

- * vertex attributes (pos, normal, color, etc)).  This function does

- * not handle the 4-element GL_CURRENT_VERTEX_ATTRIB_ARB query.

- */

-static GLuint

-get_vertex_array_attrib(struct gl_context *ctx, GLuint index, GLenum pname,

-                  const char *caller)

-{

-   const struct gl_client_array *array;

-

-   if (index >= MAX_VERTEX_GENERIC_ATTRIBS) {

-      _mesa_error(ctx, GL_INVALID_VALUE, "%s(index=%u)", caller, index);

-      return 0;

-   }

-

-   ASSERT(index < Elements(ctx->Array.ArrayObj->VertexAttrib));

-

-   array = &ctx->Array.ArrayObj->VertexAttrib[index];

-

-   switch (pname) {

-   case GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB:

-      return array->Enabled;

-   case GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB:

-      return array->Size;

-   case GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB:

-      return array->Stride;

-   case GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB:

-      return array->Type;

-   case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB:

-      return array->Normalized;

-   case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING_ARB:

-      return array->BufferObj->Name;

-   case GL_VERTEX_ATTRIB_ARRAY_INTEGER:

-      if (ctx->Extensions.EXT_gpu_shader4) {

-         return array->Integer;

-      }

-      goto error;

-   case GL_VERTEX_ATTRIB_ARRAY_DIVISOR_ARB:

-      if (ctx->Extensions.ARB_instanced_arrays) {

-         return array->InstanceDivisor;

-      }

-      goto error;

-   default:

-      ; /* fall-through */

-   }

-

-error:

-   _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=0x%x)", caller, pname);

-   return 0;

-}

-

-

-void GLAPIENTRY

-_mesa_GetVertexAttribfvARB(GLuint index, GLenum pname, GLfloat *params)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) {

-      if (index == 0) {

-         _mesa_error(ctx, GL_INVALID_OPERATION,

-                     "glGetVertexAttribfv(index==0)");

-      }

-      else {

-         const GLfloat *v = ctx->Current.Attrib[VERT_ATTRIB_GENERIC0 + index];

-         FLUSH_CURRENT(ctx, 0);

-         COPY_4V(params, v);

-      }

-   }

-   else {

-      params[0] = (GLfloat) get_vertex_array_attrib(ctx, index, pname,

-                                                    "glGetVertexAttribfv");

-   }

-}

-

-

-void GLAPIENTRY

-_mesa_GetVertexAttribdvARB(GLuint index, GLenum pname, GLdouble *params)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) {

-      if (index == 0) {

-         _mesa_error(ctx, GL_INVALID_OPERATION,

-                     "glGetVertexAttribdv(index==0)");

-      }

-      else {

-         const GLfloat *v = ctx->Current.Attrib[VERT_ATTRIB_GENERIC0 + index];

-         FLUSH_CURRENT(ctx, 0);

-         params[0] = (GLdouble) v[0];

-         params[1] = (GLdouble) v[1];

-         params[2] = (GLdouble) v[2];

-         params[3] = (GLdouble) v[3];

-      }

-   }

-   else {

-      params[0] = (GLdouble) get_vertex_array_attrib(ctx, index, pname,

-                                                     "glGetVertexAttribdv");

-   }

-}

-

-

-void GLAPIENTRY

-_mesa_GetVertexAttribivARB(GLuint index, GLenum pname, GLint *params)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) {

-      if (index == 0) {

-         _mesa_error(ctx, GL_INVALID_OPERATION,

-                     "glGetVertexAttribiv(index==0)");

-      }

-      else {

-         const GLfloat *v = ctx->Current.Attrib[VERT_ATTRIB_GENERIC0 + index];

-         FLUSH_CURRENT(ctx, 0);

-         /* XXX should floats in[0,1] be scaled to full int range? */

-         params[0] = (GLint) v[0];

-         params[1] = (GLint) v[1];

-         params[2] = (GLint) v[2];

-         params[3] = (GLint) v[3];

-      }

-   }

-   else {

-      params[0] = (GLint) get_vertex_array_attrib(ctx, index, pname,

-                                                  "glGetVertexAttribiv");

-   }

-}

-

-

-/** GL 3.0 */

-void GLAPIENTRY

-_mesa_GetVertexAttribIiv(GLuint index, GLenum pname, GLint *params)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) {

-      if (index == 0) {

-         _mesa_error(ctx, GL_INVALID_OPERATION,

-                     "glGetVertexAttribIiv(index==0)");

-      }

-      else {

-         const GLfloat *v = ctx->Current.Attrib[VERT_ATTRIB_GENERIC0 + index];

-         FLUSH_CURRENT(ctx, 0);

-         /* XXX we don't have true integer-valued vertex attribs yet */

-         params[0] = (GLint) v[0];

-         params[1] = (GLint) v[1];

-         params[2] = (GLint) v[2];

-         params[3] = (GLint) v[3];

-      }

-   }

-   else {

-      params[0] = (GLint) get_vertex_array_attrib(ctx, index, pname,

-                                                  "glGetVertexAttribIiv");

-   }

-}

-

-

-/** GL 3.0 */

-void GLAPIENTRY

-_mesa_GetVertexAttribIuiv(GLuint index, GLenum pname, GLuint *params)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) {

-      if (index == 0) {

-         _mesa_error(ctx, GL_INVALID_OPERATION,

-                     "glGetVertexAttribIuiv(index==0)");

-      }

-      else {

-         const GLfloat *v = ctx->Current.Attrib[VERT_ATTRIB_GENERIC0 + index];

-         FLUSH_CURRENT(ctx, 0);

-         /* XXX we don't have true integer-valued vertex attribs yet */

-         params[0] = (GLuint) v[0];

-         params[1] = (GLuint) v[1];

-         params[2] = (GLuint) v[2];

-         params[3] = (GLuint) v[3];

-      }

-   }

-   else {

-      params[0] = get_vertex_array_attrib(ctx, index, pname,

-                                          "glGetVertexAttribIuiv");

-   }

-}

-

-

-void GLAPIENTRY

-_mesa_GetVertexAttribPointervARB(GLuint index, GLenum pname, GLvoid **pointer)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END(ctx);

-

-   if (index >= ctx->Const.VertexProgram.MaxAttribs) {

-      _mesa_error(ctx, GL_INVALID_VALUE, "glGetVertexAttribPointerARB(index)");

-      return;

-   }

-

-   if (pname != GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB) {

-      _mesa_error(ctx, GL_INVALID_ENUM, "glGetVertexAttribPointerARB(pname)");

-      return;

-   }

-

-   ASSERT(index < Elements(ctx->Array.ArrayObj->VertexAttrib));

-

-   *pointer = (GLvoid *) ctx->Array.ArrayObj->VertexAttrib[index].Ptr;

-}

-

-

-void GLAPIENTRY

-_mesa_VertexPointerEXT(GLint size, GLenum type, GLsizei stride,

-                       GLsizei count, const GLvoid *ptr)

-{

-   (void) count;

-   _mesa_VertexPointer(size, type, stride, ptr);

-}

-

-

-void GLAPIENTRY

-_mesa_NormalPointerEXT(GLenum type, GLsizei stride, GLsizei count,

-                       const GLvoid *ptr)

-{

-   (void) count;

-   _mesa_NormalPointer(type, stride, ptr);

-}

-

-

-void GLAPIENTRY

-_mesa_ColorPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count,

-                      const GLvoid *ptr)

-{

-   (void) count;

-   _mesa_ColorPointer(size, type, stride, ptr);

-}

-

-

-void GLAPIENTRY

-_mesa_IndexPointerEXT(GLenum type, GLsizei stride, GLsizei count,

-                      const GLvoid *ptr)

-{

-   (void) count;

-   _mesa_IndexPointer(type, stride, ptr);

-}

-

-

-void GLAPIENTRY

-_mesa_TexCoordPointerEXT(GLint size, GLenum type, GLsizei stride,

-                         GLsizei count, const GLvoid *ptr)

-{

-   (void) count;

-   _mesa_TexCoordPointer(size, type, stride, ptr);

-}

-

-

-void GLAPIENTRY

-_mesa_EdgeFlagPointerEXT(GLsizei stride, GLsizei count, const GLboolean *ptr)

-{

-   (void) count;

-   _mesa_EdgeFlagPointer(stride, ptr);

-}

-

-

-void GLAPIENTRY

-_mesa_InterleavedArrays(GLenum format, GLsizei stride, const GLvoid *pointer)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   GLboolean tflag, cflag, nflag;  /* enable/disable flags */

-   GLint tcomps, ccomps, vcomps;   /* components per texcoord, color, vertex */

-   GLenum ctype = 0;               /* color type */

-   GLint coffset = 0, noffset = 0, voffset;/* color, normal, vertex offsets */

-   const GLint toffset = 0;        /* always zero */

-   GLint defstride;                /* default stride */

-   GLint c, f;

-

-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

-

-   f = sizeof(GLfloat);

-   c = f * ((4 * sizeof(GLubyte) + (f - 1)) / f);

-

-   if (stride < 0) {

-      _mesa_error( ctx, GL_INVALID_VALUE, "glInterleavedArrays(stride)" );

-      return;

-   }

-

-   switch (format) {

-      case GL_V2F:

-         tflag = GL_FALSE;  cflag = GL_FALSE;  nflag = GL_FALSE;

-         tcomps = 0;  ccomps = 0;  vcomps = 2;

-         voffset = 0;

-         defstride = 2*f;

-         break;

-      case GL_V3F:

-         tflag = GL_FALSE;  cflag = GL_FALSE;  nflag = GL_FALSE;

-         tcomps = 0;  ccomps = 0;  vcomps = 3;

-         voffset = 0;

-         defstride = 3*f;

-         break;

-      case GL_C4UB_V2F:

-         tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_FALSE;

-         tcomps = 0;  ccomps = 4;  vcomps = 2;

-         ctype = GL_UNSIGNED_BYTE;

-         coffset = 0;

-         voffset = c;

-         defstride = c + 2*f;

-         break;

-      case GL_C4UB_V3F:

-         tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_FALSE;

-         tcomps = 0;  ccomps = 4;  vcomps = 3;

-         ctype = GL_UNSIGNED_BYTE;

-         coffset = 0;

-         voffset = c;

-         defstride = c + 3*f;

-         break;

-      case GL_C3F_V3F:

-         tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_FALSE;

-         tcomps = 0;  ccomps = 3;  vcomps = 3;

-         ctype = GL_FLOAT;

-         coffset = 0;

-         voffset = 3*f;

-         defstride = 6*f;

-         break;

-      case GL_N3F_V3F:

-         tflag = GL_FALSE;  cflag = GL_FALSE;  nflag = GL_TRUE;

-         tcomps = 0;  ccomps = 0;  vcomps = 3;

-         noffset = 0;

-         voffset = 3*f;

-         defstride = 6*f;

-         break;

-      case GL_C4F_N3F_V3F:

-         tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_TRUE;

-         tcomps = 0;  ccomps = 4;  vcomps = 3;

-         ctype = GL_FLOAT;

-         coffset = 0;

-         noffset = 4*f;

-         voffset = 7*f;

-         defstride = 10*f;

-         break;

-      case GL_T2F_V3F:

-         tflag = GL_TRUE;  cflag = GL_FALSE;  nflag = GL_FALSE;

-         tcomps = 2;  ccomps = 0;  vcomps = 3;

-         voffset = 2*f;

-         defstride = 5*f;

-         break;

-      case GL_T4F_V4F:

-         tflag = GL_TRUE;  cflag = GL_FALSE;  nflag = GL_FALSE;

-         tcomps = 4;  ccomps = 0;  vcomps = 4;

-         voffset = 4*f;

-         defstride = 8*f;

-         break;

-      case GL_T2F_C4UB_V3F:

-         tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_FALSE;

-         tcomps = 2;  ccomps = 4;  vcomps = 3;

-         ctype = GL_UNSIGNED_BYTE;

-         coffset = 2*f;

-         voffset = c+2*f;

-         defstride = c+5*f;

-         break;

-      case GL_T2F_C3F_V3F:

-         tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_FALSE;

-         tcomps = 2;  ccomps = 3;  vcomps = 3;

-         ctype = GL_FLOAT;

-         coffset = 2*f;

-         voffset = 5*f;

-         defstride = 8*f;

-         break;

-      case GL_T2F_N3F_V3F:

-         tflag = GL_TRUE;  cflag = GL_FALSE;  nflag = GL_TRUE;

-         tcomps = 2;  ccomps = 0;  vcomps = 3;

-         noffset = 2*f;

-         voffset = 5*f;

-         defstride = 8*f;

-         break;

-      case GL_T2F_C4F_N3F_V3F:

-         tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_TRUE;

-         tcomps = 2;  ccomps = 4;  vcomps = 3;

-         ctype = GL_FLOAT;

-         coffset = 2*f;

-         noffset = 6*f;

-         voffset = 9*f;

-         defstride = 12*f;

-         break;

-      case GL_T4F_C4F_N3F_V4F:

-         tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_TRUE;

-         tcomps = 4;  ccomps = 4;  vcomps = 4;

-         ctype = GL_FLOAT;

-         coffset = 4*f;

-         noffset = 8*f;

-         voffset = 11*f;

-         defstride = 15*f;

-         break;

-      default:

-         _mesa_error( ctx, GL_INVALID_ENUM, "glInterleavedArrays(format)" );

-         return;

-   }

-

-   if (stride==0) {

-      stride = defstride;

-   }

-

-   _mesa_DisableClientState( GL_EDGE_FLAG_ARRAY );

-   _mesa_DisableClientState( GL_INDEX_ARRAY );

-   /* XXX also disable secondary color and generic arrays? */

-

-   /* Texcoords */

-   if (tflag) {

-      _mesa_EnableClientState( GL_TEXTURE_COORD_ARRAY );

-      _mesa_TexCoordPointer( tcomps, GL_FLOAT, stride,

-                             (GLubyte *) pointer + toffset );

-   }

-   else {

-      _mesa_DisableClientState( GL_TEXTURE_COORD_ARRAY );

-   }

-

-   /* Color */

-   if (cflag) {

-      _mesa_EnableClientState( GL_COLOR_ARRAY );

-      _mesa_ColorPointer( ccomps, ctype, stride,

-			  (GLubyte *) pointer + coffset );

-   }

-   else {

-      _mesa_DisableClientState( GL_COLOR_ARRAY );

-   }

-

-

-   /* Normals */

-   if (nflag) {

-      _mesa_EnableClientState( GL_NORMAL_ARRAY );

-      _mesa_NormalPointer( GL_FLOAT, stride, (GLubyte *) pointer + noffset );

-   }

-   else {

-      _mesa_DisableClientState( GL_NORMAL_ARRAY );

-   }

-

-   /* Vertices */

-   _mesa_EnableClientState( GL_VERTEX_ARRAY );

-   _mesa_VertexPointer( vcomps, GL_FLOAT, stride,

-			(GLubyte *) pointer + voffset );

-}

-

-

-void GLAPIENTRY

-_mesa_LockArraysEXT(GLint first, GLsizei count)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

-

-   if (MESA_VERBOSE & VERBOSE_API)

-      _mesa_debug(ctx, "glLockArrays %d %d\n", first, count);

-

-   if (first < 0) {

-      _mesa_error( ctx, GL_INVALID_VALUE, "glLockArraysEXT(first)" );

-      return;

-   }

-   if (count <= 0) {

-      _mesa_error( ctx, GL_INVALID_VALUE, "glLockArraysEXT(count)" );

-      return;

-   }

-   if (ctx->Array.LockCount != 0) {

-      _mesa_error( ctx, GL_INVALID_OPERATION, "glLockArraysEXT(reentry)" );

-      return;

-   }

-

-   ctx->Array.LockFirst = first;

-   ctx->Array.LockCount = count;

-

-   ctx->NewState |= _NEW_ARRAY;

-   ctx->Array.NewState |= _NEW_ARRAY_ALL;

-}

-

-

-void GLAPIENTRY

-_mesa_UnlockArraysEXT( void )

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

-

-   if (MESA_VERBOSE & VERBOSE_API)

-      _mesa_debug(ctx, "glUnlockArrays\n");

-

-   if (ctx->Array.LockCount == 0) {

-      _mesa_error( ctx, GL_INVALID_OPERATION, "glUnlockArraysEXT(reexit)" );

-      return;

-   }

-

-   ctx->Array.LockFirst = 0;

-   ctx->Array.LockCount = 0;

-   ctx->NewState |= _NEW_ARRAY;

-   ctx->Array.NewState |= _NEW_ARRAY_ALL;

-}

-

-

-/* GL_EXT_multi_draw_arrays */

-void GLAPIENTRY

-_mesa_MultiDrawArraysEXT( GLenum mode, const GLint *first,

-                          const GLsizei *count, GLsizei primcount )

-{

-   GET_CURRENT_CONTEXT(ctx);

-   GLint i;

-

-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

-

-   for (i = 0; i < primcount; i++) {

-      if (count[i] > 0) {

-         CALL_DrawArrays(ctx->Exec, (mode, first[i], count[i]));

-      }

-   }

-}

-

-

-/* GL_IBM_multimode_draw_arrays */

-void GLAPIENTRY

-_mesa_MultiModeDrawArraysIBM( const GLenum * mode, const GLint * first,

-			      const GLsizei * count,

-			      GLsizei primcount, GLint modestride )

-{

-   GET_CURRENT_CONTEXT(ctx);

-   GLint i;

-

-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

-

-   for ( i = 0 ; i < primcount ; i++ ) {

-      if ( count[i] > 0 ) {

-         GLenum m = *((GLenum *) ((GLubyte *) mode + i * modestride));

-	 CALL_DrawArrays(ctx->Exec, ( m, first[i], count[i] ));

-      }

-   }

-}

-

-

-/* GL_IBM_multimode_draw_arrays */

-void GLAPIENTRY

-_mesa_MultiModeDrawElementsIBM( const GLenum * mode, const GLsizei * count,

-				GLenum type, const GLvoid * const * indices,

-				GLsizei primcount, GLint modestride )

-{

-   GET_CURRENT_CONTEXT(ctx);

-   GLint i;

-

-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

-

-   /* XXX not sure about ARB_vertex_buffer_object handling here */

-

-   for ( i = 0 ; i < primcount ; i++ ) {

-      if ( count[i] > 0 ) {

-         GLenum m = *((GLenum *) ((GLubyte *) mode + i * modestride));

-	 CALL_DrawElements(ctx->Exec, ( m, count[i], type, indices[i] ));

-      }

-   }

-}

-

-

-/**

- * GL_NV_primitive_restart and GL 3.1

- */

-void GLAPIENTRY

-_mesa_PrimitiveRestartIndex(GLuint index)

-{

-   GET_CURRENT_CONTEXT(ctx);

-

-   if (!ctx->Extensions.NV_primitive_restart &&

-       ctx->VersionMajor * 10 + ctx->VersionMinor < 31) {

-      _mesa_error(ctx, GL_INVALID_OPERATION, "glPrimitiveRestartIndexNV()");

-      return;

-   }

-

-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

-

-   FLUSH_VERTICES(ctx, _NEW_TRANSFORM);

-

-   ctx->Array.RestartIndex = index;

-}

-

-

-/**

- * See GL_ARB_instanced_arrays.

- * Note that the instance divisor only applies to generic arrays, not

- * the legacy vertex arrays.

- */

-void GLAPIENTRY

-_mesa_VertexAttribDivisor(GLuint index, GLuint divisor)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);

-

-   if (!ctx->Extensions.ARB_instanced_arrays) {

-      _mesa_error(ctx, GL_INVALID_OPERATION, "glVertexAttribDivisor()");

-      return;

-   }

-

-   if (index >= ctx->Const.VertexProgram.MaxAttribs) {

-      _mesa_error(ctx, GL_INVALID_ENUM, "glVertexAttribDivisor(index = %u)",

-                  index);

-      return;

-   }

-

-   ctx->Array.ArrayObj->VertexAttrib[index].InstanceDivisor = divisor;

-}

-

-

-

-/**

- * Copy one client vertex array to another.

- */

-void

-_mesa_copy_client_array(struct gl_context *ctx,

-                        struct gl_client_array *dst,

-                        struct gl_client_array *src)

-{

-   dst->Size = src->Size;

-   dst->Type = src->Type;

-   dst->Format = src->Format;

-   dst->Stride = src->Stride;

-   dst->StrideB = src->StrideB;

-   dst->Ptr = src->Ptr;

-   dst->Enabled = src->Enabled;

-   dst->Normalized = src->Normalized;

-   dst->Integer = src->Integer;

-   dst->InstanceDivisor = src->InstanceDivisor;

-   dst->_ElementSize = src->_ElementSize;

-   _mesa_reference_buffer_object(ctx, &dst->BufferObj, src->BufferObj);

-   dst->_MaxElement = src->_MaxElement;

-}

-

-

-

-/**

- * Print vertex array's fields.

- */

-static void

-print_array(const char *name, GLint index, const struct gl_client_array *array)

-{

-   if (index >= 0)

-      printf("  %s[%d]: ", name, index);

-   else

-      printf("  %s: ", name);

-   printf("Ptr=%p, Type=0x%x, Size=%d, ElemSize=%u, Stride=%d, Buffer=%u(Size %lu), MaxElem=%u\n",

-	  array->Ptr, array->Type, array->Size,

-	  array->_ElementSize, array->StrideB,

-	  array->BufferObj->Name, (unsigned long) array->BufferObj->Size,

-	  array->_MaxElement);

-}

-

-

-/**

- * Print current vertex object/array info.  For debug.

- */

-void

-_mesa_print_arrays(struct gl_context *ctx)

-{

-   struct gl_array_object *arrayObj = ctx->Array.ArrayObj;

-   GLuint i;

-

-   _mesa_update_array_object_max_element(ctx, arrayObj);

-

-   printf("Array Object %u\n", arrayObj->Name);

-   if (arrayObj->Vertex.Enabled)

-      print_array("Vertex", -1, &arrayObj->Vertex);

-   if (arrayObj->Normal.Enabled)

-      print_array("Normal", -1, &arrayObj->Normal);

-   if (arrayObj->Color.Enabled)

-      print_array("Color", -1, &arrayObj->Color);

-   for (i = 0; i < Elements(arrayObj->TexCoord); i++)

-      if (arrayObj->TexCoord[i].Enabled)

-         print_array("TexCoord", i, &arrayObj->TexCoord[i]);

-   for (i = 0; i < Elements(arrayObj->VertexAttrib); i++)

-      if (arrayObj->VertexAttrib[i].Enabled)

-         print_array("Attrib", i, &arrayObj->VertexAttrib[i]);

-   printf("  _MaxElement = %u\n", arrayObj->_MaxElement);

-}

-

-

-/**

- * Initialize vertex array state for given context.

- */

-void 

-_mesa_init_varray(struct gl_context *ctx)

-{

-   ctx->Array.DefaultArrayObj = _mesa_new_array_object(ctx, 0);

-   _mesa_reference_array_object(ctx, &ctx->Array.ArrayObj,

-                                ctx->Array.DefaultArrayObj);

-   ctx->Array.ActiveTexture = 0;   /* GL_ARB_multitexture */

-

-   ctx->Array.Objects = _mesa_NewHashTable();

-}

-

-

-/**

- * Callback for deleting an array object.  Called by _mesa_HashDeleteAll().

- */

-static void

-delete_arrayobj_cb(GLuint id, void *data, void *userData)

-{

-   struct gl_array_object *arrayObj = (struct gl_array_object *) data;

-   struct gl_context *ctx = (struct gl_context *) userData;

-   _mesa_delete_array_object(ctx, arrayObj);

-}

-

-

-/**

- * Free vertex array state for given context.

- */

-void 

-_mesa_free_varray_data(struct gl_context *ctx)

-{

-   _mesa_HashDeleteAll(ctx->Array.Objects, delete_arrayobj_cb, ctx);

-   _mesa_DeleteHashTable(ctx->Array.Objects);

-}

+/*
+ * Mesa 3-D graphics library
+ * Version:  7.6
+ *
+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
+ * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#include "glheader.h"
+#include "imports.h"
+#include "bufferobj.h"
+#include "context.h"
+#include "enable.h"
+#include "enums.h"
+#include "hash.h"
+#include "image.h"
+#include "macros.h"
+#include "mfeatures.h"
+#include "mtypes.h"
+#include "varray.h"
+#include "arrayobj.h"
+#include "main/dispatch.h"
+
+
+/** Used to do error checking for GL_EXT_vertex_array_bgra */
+#define BGRA_OR_4  5
+
+
+/** Used to indicate which GL datatypes are accepted by each of the
+ * glVertex/Color/Attrib/EtcPointer() functions.
+ */
+#define BOOL_BIT             0x1
+#define BYTE_BIT             0x2
+#define UNSIGNED_BYTE_BIT    0x4
+#define SHORT_BIT            0x8
+#define UNSIGNED_SHORT_BIT   0x10
+#define INT_BIT              0x20
+#define UNSIGNED_INT_BIT     0x40
+#define HALF_BIT             0x80
+#define FLOAT_BIT            0x100
+#define DOUBLE_BIT           0x200
+#define FIXED_BIT            0x400
+
+
+
+/** Convert GL datatype enum into a <type>_BIT value seen above */
+static GLbitfield
+type_to_bit(const struct gl_context *ctx, GLenum type)
+{
+   switch (type) {
+   case GL_BOOL:
+      return BOOL_BIT;
+   case GL_BYTE:
+      return BYTE_BIT;
+   case GL_UNSIGNED_BYTE:
+      return UNSIGNED_BYTE_BIT;
+   case GL_SHORT:
+      return SHORT_BIT;
+   case GL_UNSIGNED_SHORT:
+      return UNSIGNED_SHORT_BIT;
+   case GL_INT:
+      return INT_BIT;
+   case GL_UNSIGNED_INT:
+      return UNSIGNED_INT_BIT;
+   case GL_HALF_FLOAT:
+      if (ctx->Extensions.ARB_half_float_vertex)
+         return HALF_BIT;
+      else
+         return 0x0;
+   case GL_FLOAT:
+      return FLOAT_BIT;
+   case GL_DOUBLE:
+      return DOUBLE_BIT;
+   case GL_FIXED:
+      return FIXED_BIT;
+   default:
+      return 0;
+   }
+}
+
+
+/**
+ * Do error checking and update state for glVertex/Color/TexCoord/...Pointer
+ * functions.
+ *
+ * \param func  name of calling function used for error reporting
+ * \param array  the array to update
+ * \param dirtyBit  which bit to set in ctx->Array.NewState for this array
+ * \param legalTypes  bitmask of *_BIT above indicating legal datatypes
+ * \param sizeMin  min allowable size value
+ * \param sizeMax  max allowable size value (may also be BGRA_OR_4)
+ * \param size  components per element (1, 2, 3 or 4)
+ * \param type  datatype of each component (GL_FLOAT, GL_INT, etc)
+ * \param stride  stride between elements, in elements
+ * \param normalized  are integer types converted to floats in [-1, 1]?
+ * \param integer  integer-valued values (will not be normalized to [-1,1])
+ * \param ptr  the address (or offset inside VBO) of the array data
+ */
+static void
+update_array(struct gl_context *ctx,
+             const char *func,
+             struct gl_client_array *array,
+             GLbitfield dirtyBit, GLbitfield legalTypesMask,
+             GLint sizeMin, GLint sizeMax,
+             GLint size, GLenum type, GLsizei stride,
+             GLboolean normalized, GLboolean integer,
+             const GLvoid *ptr)
+{
+   GLbitfield typeBit;
+   GLsizei elementSize;
+   GLenum format = GL_RGBA;
+
+   if (ctx->API != API_OPENGLES && ctx->API != API_OPENGLES2) {
+      /* fixed point arrays / data is only allowed with OpenGL ES 1.x/2.0 */
+      legalTypesMask &= ~FIXED_BIT;
+   }
+
+   typeBit = type_to_bit(ctx, type);
+   if (typeBit == 0x0 || (typeBit & legalTypesMask) == 0x0) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "%s(type = %s)",
+                  func, _mesa_lookup_enum_by_nr(type));
+      return;
+   }
+
+   /* Do size parameter checking.
+    * If sizeMax = BGRA_OR_4 it means that size = GL_BGRA is legal and
+    * must be handled specially.
+    */
+   if (ctx->Extensions.EXT_vertex_array_bgra &&
+       sizeMax == BGRA_OR_4 &&
+       size == GL_BGRA) {
+      if (type != GL_UNSIGNED_BYTE) {
+         _mesa_error(ctx, GL_INVALID_VALUE, "%s(GL_BGRA/GLubyte)", func);
+         return;
+      }
+      format = GL_BGRA;
+      size = 4;
+   }
+   else if (size < sizeMin || size > sizeMax || size > 4) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "%s(size=%d)", func, size);
+      return;
+   }
+
+   ASSERT(size <= 4);
+
+   if (stride < 0) {
+      _mesa_error( ctx, GL_INVALID_VALUE, "%s(stride=%d)", func, stride );
+      return;
+   }
+
+   if (ctx->Array.ArrayObj->VBOonly &&
+       ctx->Array.ArrayBufferObj->Name == 0) {
+      /* GL_ARB_vertex_array_object requires that all arrays reside in VBOs.
+       * Generate GL_INVALID_OPERATION if that's not true.
+       */
+      _mesa_error(ctx, GL_INVALID_OPERATION, "%s(non-VBO array)", func);
+      return;
+   }
+
+   elementSize = _mesa_sizeof_type(type) * size;
+
+   array->Size = size;
+   array->Type = type;
+   array->Format = format;
+   array->Stride = stride;
+   array->StrideB = stride ? stride : elementSize;
+   array->Normalized = normalized;
+   array->Ptr = (const GLubyte *) ptr;
+   array->_ElementSize = elementSize;
+
+   _mesa_reference_buffer_object(ctx, &array->BufferObj,
+                                 ctx->Array.ArrayBufferObj);
+
+   ctx->NewState |= _NEW_ARRAY;
+   ctx->Array.NewState |= dirtyBit;
+}
+
+
+void GLAPIENTRY
+_mesa_VertexPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr)
+{
+   GLbitfield legalTypes = (SHORT_BIT | INT_BIT | FLOAT_BIT |
+                            DOUBLE_BIT | HALF_BIT | FIXED_BIT);
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   if (ctx->API == API_OPENGLES)
+      legalTypes |= BYTE_BIT;
+
+   update_array(ctx, "glVertexPointer",
+                &ctx->Array.ArrayObj->Vertex, _NEW_ARRAY_VERTEX,
+                legalTypes, 2, 4,
+                size, type, stride, GL_FALSE, GL_FALSE, ptr);
+}
+
+
+void GLAPIENTRY
+_mesa_NormalPointer(GLenum type, GLsizei stride, const GLvoid *ptr )
+{
+   const GLbitfield legalTypes = (BYTE_BIT | SHORT_BIT | INT_BIT |
+                                  HALF_BIT | FLOAT_BIT | DOUBLE_BIT |
+                                  FIXED_BIT);
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   update_array(ctx, "glNormalPointer",
+                &ctx->Array.ArrayObj->Normal, _NEW_ARRAY_NORMAL,
+                legalTypes, 3, 3,
+                3, type, stride, GL_TRUE, GL_FALSE, ptr);
+}
+
+
+void GLAPIENTRY
+_mesa_ColorPointer(GLint size, GLenum type, GLsizei stride, const GLvoid *ptr)
+{
+   const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT |
+                                  SHORT_BIT | UNSIGNED_SHORT_BIT |
+                                  INT_BIT | UNSIGNED_INT_BIT |
+                                  HALF_BIT | FLOAT_BIT | DOUBLE_BIT |
+                                  FIXED_BIT);
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   update_array(ctx, "glColorPointer",
+                &ctx->Array.ArrayObj->Color, _NEW_ARRAY_COLOR0,
+                legalTypes, 3, BGRA_OR_4,
+                size, type, stride, GL_TRUE, GL_FALSE, ptr);
+}
+
+
+void GLAPIENTRY
+_mesa_FogCoordPointerEXT(GLenum type, GLsizei stride, const GLvoid *ptr)
+{
+   const GLbitfield legalTypes = (HALF_BIT | FLOAT_BIT | DOUBLE_BIT);
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   update_array(ctx, "glFogCoordPointer",
+                &ctx->Array.ArrayObj->FogCoord, _NEW_ARRAY_FOGCOORD,
+                legalTypes, 1, 1,
+                1, type, stride, GL_FALSE, GL_FALSE, ptr);
+}
+
+
+void GLAPIENTRY
+_mesa_IndexPointer(GLenum type, GLsizei stride, const GLvoid *ptr)
+{
+   const GLbitfield legalTypes = (UNSIGNED_BYTE_BIT | SHORT_BIT | INT_BIT |
+                                  FLOAT_BIT | DOUBLE_BIT);
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   update_array(ctx, "glIndexPointer",
+                &ctx->Array.ArrayObj->Index, _NEW_ARRAY_INDEX,
+                legalTypes, 1, 1,
+                1, type, stride, GL_FALSE, GL_FALSE, ptr);
+}
+
+
+void GLAPIENTRY
+_mesa_SecondaryColorPointerEXT(GLint size, GLenum type,
+			       GLsizei stride, const GLvoid *ptr)
+{
+   const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT |
+                                  SHORT_BIT | UNSIGNED_SHORT_BIT |
+                                  INT_BIT | UNSIGNED_INT_BIT |
+                                  HALF_BIT | FLOAT_BIT | DOUBLE_BIT);
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   update_array(ctx, "glSecondaryColorPointer",
+                &ctx->Array.ArrayObj->SecondaryColor, _NEW_ARRAY_COLOR1,
+                legalTypes, 3, BGRA_OR_4,
+                size, type, stride, GL_TRUE, GL_FALSE, ptr);
+}
+
+
+void GLAPIENTRY
+_mesa_TexCoordPointer(GLint size, GLenum type, GLsizei stride,
+                      const GLvoid *ptr)
+{
+   GLbitfield legalTypes = (SHORT_BIT | INT_BIT |
+                            HALF_BIT | FLOAT_BIT | DOUBLE_BIT |
+                            FIXED_BIT);
+   GET_CURRENT_CONTEXT(ctx);
+   const GLuint unit = ctx->Array.ActiveTexture;
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   if (ctx->API == API_OPENGLES)
+      legalTypes |= BYTE_BIT;
+
+   ASSERT(unit < Elements(ctx->Array.ArrayObj->TexCoord));
+
+   update_array(ctx, "glTexCoordPointer",
+                &ctx->Array.ArrayObj->TexCoord[unit],
+                _NEW_ARRAY_TEXCOORD(unit),
+                legalTypes, 1, 4,
+                size, type, stride, GL_FALSE, GL_FALSE,
+                ptr);
+}
+
+
+void GLAPIENTRY
+_mesa_EdgeFlagPointer(GLsizei stride, const GLvoid *ptr)
+{
+   const GLbitfield legalTypes = UNSIGNED_BYTE_BIT;
+   /* see table 2.4 edits in GL_EXT_gpu_shader4 spec: */
+   const GLboolean integer = GL_TRUE;
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   update_array(ctx, "glEdgeFlagPointer",
+                &ctx->Array.ArrayObj->EdgeFlag, _NEW_ARRAY_EDGEFLAG,
+                legalTypes, 1, 1,
+                1, GL_UNSIGNED_BYTE, stride, GL_FALSE, integer, ptr);
+}
+
+
+void GLAPIENTRY
+_mesa_PointSizePointer(GLenum type, GLsizei stride, const GLvoid *ptr)
+{
+   const GLbitfield legalTypes = (FLOAT_BIT | FIXED_BIT);
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   if (ctx->API != API_OPENGLES) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glPointSizePointer(ES 1.x only)");
+      return;
+   }
+      
+   update_array(ctx, "glPointSizePointer",
+                &ctx->Array.ArrayObj->PointSize, _NEW_ARRAY_POINT_SIZE,
+                legalTypes, 1, 1,
+                1, type, stride, GL_FALSE, GL_FALSE, ptr);
+}
+
+
+#if FEATURE_NV_vertex_program
+/**
+ * Set a vertex attribute array.
+ * Note that these arrays DO alias the conventional GL vertex arrays
+ * (position, normal, color, fog, texcoord, etc).
+ * The generic attribute slots at #16 and above are not touched.
+ */
+void GLAPIENTRY
+_mesa_VertexAttribPointerNV(GLuint index, GLint size, GLenum type,
+                            GLsizei stride, const GLvoid *ptr)
+{
+   const GLbitfield legalTypes = (UNSIGNED_BYTE_BIT | SHORT_BIT |
+                                  FLOAT_BIT | DOUBLE_BIT);
+   GLboolean normalized = GL_FALSE;
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (index >= MAX_NV_VERTEX_PROGRAM_INPUTS) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerNV(index)");
+      return;
+   }
+
+   if (type == GL_UNSIGNED_BYTE && size != 4) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerNV(size!=4)");
+      return;
+   }
+
+   update_array(ctx, "glVertexAttribPointerNV",
+                &ctx->Array.ArrayObj->VertexAttrib[index],
+                _NEW_ARRAY_ATTRIB(index),
+                legalTypes, 1, BGRA_OR_4,
+                size, type, stride, normalized, GL_FALSE, ptr);
+}
+#endif
+
+
+#if FEATURE_ARB_vertex_program
+/**
+ * Set a generic vertex attribute array.
+ * Note that these arrays DO NOT alias the conventional GL vertex arrays
+ * (position, normal, color, fog, texcoord, etc).
+ */
+void GLAPIENTRY
+_mesa_VertexAttribPointerARB(GLuint index, GLint size, GLenum type,
+                             GLboolean normalized,
+                             GLsizei stride, const GLvoid *ptr)
+{
+   const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT |
+                                  SHORT_BIT | UNSIGNED_SHORT_BIT |
+                                  INT_BIT | UNSIGNED_INT_BIT |
+                                  HALF_BIT | FLOAT_BIT | DOUBLE_BIT |
+                                  FIXED_BIT);
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (index >= ctx->Const.VertexProgram.MaxAttribs) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribPointerARB(index)");
+      return;
+   }
+
+   update_array(ctx, "glVertexAttribPointer",
+                &ctx->Array.ArrayObj->VertexAttrib[index],
+                _NEW_ARRAY_ATTRIB(index),
+                legalTypes, 1, BGRA_OR_4,
+                size, type, stride, normalized, GL_FALSE, ptr);
+}
+#endif
+
+
+/**
+ * GL_EXT_gpu_shader4 / GL 3.0.
+ * Set an integer-valued vertex attribute array.
+ * Note that these arrays DO NOT alias the conventional GL vertex arrays
+ * (position, normal, color, fog, texcoord, etc).
+ */
+void GLAPIENTRY
+_mesa_VertexAttribIPointer(GLuint index, GLint size, GLenum type,
+                           GLsizei stride, const GLvoid *ptr)
+{
+   const GLbitfield legalTypes = (BYTE_BIT | UNSIGNED_BYTE_BIT |
+                                  SHORT_BIT | UNSIGNED_SHORT_BIT |
+                                  INT_BIT | UNSIGNED_INT_BIT);
+   const GLboolean normalized = GL_FALSE;
+   const GLboolean integer = GL_TRUE;
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (index >= ctx->Const.VertexProgram.MaxAttribs) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glVertexAttribIPointer(index)");
+      return;
+   }
+
+   update_array(ctx, "glVertexAttribIPointer",
+                &ctx->Array.ArrayObj->VertexAttrib[index],
+                _NEW_ARRAY_ATTRIB(index),
+                legalTypes, 1, 4,
+                size, type, stride, normalized, integer, ptr);
+}
+
+
+
+void GLAPIENTRY
+_mesa_EnableVertexAttribArrayARB(GLuint index)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (index >= ctx->Const.VertexProgram.MaxAttribs) {
+      _mesa_error(ctx, GL_INVALID_VALUE,
+                  "glEnableVertexAttribArrayARB(index)");
+      return;
+   }
+
+   ASSERT(index < Elements(ctx->Array.ArrayObj->VertexAttrib));
+
+   FLUSH_VERTICES(ctx, _NEW_ARRAY);
+   ctx->Array.ArrayObj->VertexAttrib[index].Enabled = GL_TRUE;
+   ctx->Array.ArrayObj->_Enabled |= _NEW_ARRAY_ATTRIB(index);
+   ctx->Array.NewState |= _NEW_ARRAY_ATTRIB(index);
+}
+
+
+void GLAPIENTRY
+_mesa_DisableVertexAttribArrayARB(GLuint index)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (index >= ctx->Const.VertexProgram.MaxAttribs) {
+      _mesa_error(ctx, GL_INVALID_VALUE,
+                  "glEnableVertexAttribArrayARB(index)");
+      return;
+   }
+
+   ASSERT(index < Elements(ctx->Array.ArrayObj->VertexAttrib));
+
+   FLUSH_VERTICES(ctx, _NEW_ARRAY);
+   ctx->Array.ArrayObj->VertexAttrib[index].Enabled = GL_FALSE;
+   ctx->Array.ArrayObj->_Enabled &= ~_NEW_ARRAY_ATTRIB(index);
+   ctx->Array.NewState |= _NEW_ARRAY_ATTRIB(index);
+}
+
+
+/**
+ * Return info for a vertex attribute array (no alias with legacy
+ * vertex attributes (pos, normal, color, etc)).  This function does
+ * not handle the 4-element GL_CURRENT_VERTEX_ATTRIB_ARB query.
+ */
+static GLuint
+get_vertex_array_attrib(struct gl_context *ctx, GLuint index, GLenum pname,
+                  const char *caller)
+{
+   const struct gl_client_array *array;
+
+   if (index >= ctx->Const.VertexProgram.MaxAttribs) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "%s(index=%u)", caller, index);
+      return 0;
+   }
+
+   ASSERT(index < Elements(ctx->Array.ArrayObj->VertexAttrib));
+
+   array = &ctx->Array.ArrayObj->VertexAttrib[index];
+
+   switch (pname) {
+   case GL_VERTEX_ATTRIB_ARRAY_ENABLED_ARB:
+      return array->Enabled;
+   case GL_VERTEX_ATTRIB_ARRAY_SIZE_ARB:
+      return array->Size;
+   case GL_VERTEX_ATTRIB_ARRAY_STRIDE_ARB:
+      return array->Stride;
+   case GL_VERTEX_ATTRIB_ARRAY_TYPE_ARB:
+      return array->Type;
+   case GL_VERTEX_ATTRIB_ARRAY_NORMALIZED_ARB:
+      return array->Normalized;
+   case GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING_ARB:
+      return array->BufferObj->Name;
+   case GL_VERTEX_ATTRIB_ARRAY_INTEGER:
+      if (ctx->Extensions.EXT_gpu_shader4) {
+         return array->Integer;
+      }
+      goto error;
+   case GL_VERTEX_ATTRIB_ARRAY_DIVISOR_ARB:
+      if (ctx->Extensions.ARB_instanced_arrays) {
+         return array->InstanceDivisor;
+      }
+      goto error;
+   default:
+      ; /* fall-through */
+   }
+
+error:
+   _mesa_error(ctx, GL_INVALID_ENUM, "%s(pname=0x%x)", caller, pname);
+   return 0;
+}
+
+
+static const GLfloat *
+get_current_attrib(struct gl_context *ctx, GLuint index, const char *function)
+{
+   if (index == 0) {
+      if (ctx->API != API_OPENGLES2) {
+	 _mesa_error(ctx, GL_INVALID_OPERATION, "%s(index==0)", function);
+	 return NULL;
+      }
+   }
+   else if (index >= ctx->Const.VertexProgram.MaxAttribs) {
+      _mesa_error(ctx, GL_INVALID_VALUE,
+		  "%s(index>=GL_MAX_VERTEX_ATTRIBS)", function);
+      return NULL;
+   }
+
+   FLUSH_CURRENT(ctx, 0);
+   return ctx->Current.Attrib[VERT_ATTRIB_GENERIC0 + index];
+}
+
+void GLAPIENTRY
+_mesa_GetVertexAttribfvARB(GLuint index, GLenum pname, GLfloat *params)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) {
+      const GLfloat *v = get_current_attrib(ctx, index, "glGetVertexAttribfv");
+      if (v != NULL) {
+         COPY_4V(params, v);
+      }
+   }
+   else {
+      params[0] = (GLfloat) get_vertex_array_attrib(ctx, index, pname,
+                                                    "glGetVertexAttribfv");
+   }
+}
+
+
+void GLAPIENTRY
+_mesa_GetVertexAttribdvARB(GLuint index, GLenum pname, GLdouble *params)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) {
+      const GLfloat *v = get_current_attrib(ctx, index, "glGetVertexAttribdv");
+      if (v != NULL) {
+         params[0] = (GLdouble) v[0];
+         params[1] = (GLdouble) v[1];
+         params[2] = (GLdouble) v[2];
+         params[3] = (GLdouble) v[3];
+      }
+   }
+   else {
+      params[0] = (GLdouble) get_vertex_array_attrib(ctx, index, pname,
+                                                     "glGetVertexAttribdv");
+   }
+}
+
+
+void GLAPIENTRY
+_mesa_GetVertexAttribivARB(GLuint index, GLenum pname, GLint *params)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) {
+      const GLfloat *v = get_current_attrib(ctx, index, "glGetVertexAttribiv");
+      if (v != NULL) {
+         /* XXX should floats in[0,1] be scaled to full int range? */
+         params[0] = (GLint) v[0];
+         params[1] = (GLint) v[1];
+         params[2] = (GLint) v[2];
+         params[3] = (GLint) v[3];
+      }
+   }
+   else {
+      params[0] = (GLint) get_vertex_array_attrib(ctx, index, pname,
+                                                  "glGetVertexAttribiv");
+   }
+}
+
+
+/** GL 3.0 */
+void GLAPIENTRY
+_mesa_GetVertexAttribIiv(GLuint index, GLenum pname, GLint *params)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) {
+      const GLfloat *v =
+	 get_current_attrib(ctx, index, "glGetVertexAttribIiv");
+      if (v != NULL) {
+         /* XXX we don't have true integer-valued vertex attribs yet */
+         params[0] = (GLint) v[0];
+         params[1] = (GLint) v[1];
+         params[2] = (GLint) v[2];
+         params[3] = (GLint) v[3];
+      }
+   }
+   else {
+      params[0] = (GLint) get_vertex_array_attrib(ctx, index, pname,
+                                                  "glGetVertexAttribIiv");
+   }
+}
+
+
+/** GL 3.0 */
+void GLAPIENTRY
+_mesa_GetVertexAttribIuiv(GLuint index, GLenum pname, GLuint *params)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (pname == GL_CURRENT_VERTEX_ATTRIB_ARB) {
+      const GLfloat *v =
+	 get_current_attrib(ctx, index, "glGetVertexAttribIuiv");
+      if (v != NULL) {
+         /* XXX we don't have true integer-valued vertex attribs yet */
+         params[0] = (GLuint) v[0];
+         params[1] = (GLuint) v[1];
+         params[2] = (GLuint) v[2];
+         params[3] = (GLuint) v[3];
+      }
+   }
+   else {
+      params[0] = get_vertex_array_attrib(ctx, index, pname,
+                                          "glGetVertexAttribIuiv");
+   }
+}
+
+
+void GLAPIENTRY
+_mesa_GetVertexAttribPointervARB(GLuint index, GLenum pname, GLvoid **pointer)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (index >= ctx->Const.VertexProgram.MaxAttribs) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glGetVertexAttribPointerARB(index)");
+      return;
+   }
+
+   if (pname != GL_VERTEX_ATTRIB_ARRAY_POINTER_ARB) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetVertexAttribPointerARB(pname)");
+      return;
+   }
+
+   ASSERT(index < Elements(ctx->Array.ArrayObj->VertexAttrib));
+
+   *pointer = (GLvoid *) ctx->Array.ArrayObj->VertexAttrib[index].Ptr;
+}
+
+
+void GLAPIENTRY
+_mesa_VertexPointerEXT(GLint size, GLenum type, GLsizei stride,
+                       GLsizei count, const GLvoid *ptr)
+{
+   (void) count;
+   _mesa_VertexPointer(size, type, stride, ptr);
+}
+
+
+void GLAPIENTRY
+_mesa_NormalPointerEXT(GLenum type, GLsizei stride, GLsizei count,
+                       const GLvoid *ptr)
+{
+   (void) count;
+   _mesa_NormalPointer(type, stride, ptr);
+}
+
+
+void GLAPIENTRY
+_mesa_ColorPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count,
+                      const GLvoid *ptr)
+{
+   (void) count;
+   _mesa_ColorPointer(size, type, stride, ptr);
+}
+
+
+void GLAPIENTRY
+_mesa_IndexPointerEXT(GLenum type, GLsizei stride, GLsizei count,
+                      const GLvoid *ptr)
+{
+   (void) count;
+   _mesa_IndexPointer(type, stride, ptr);
+}
+
+
+void GLAPIENTRY
+_mesa_TexCoordPointerEXT(GLint size, GLenum type, GLsizei stride,
+                         GLsizei count, const GLvoid *ptr)
+{
+   (void) count;
+   _mesa_TexCoordPointer(size, type, stride, ptr);
+}
+
+
+void GLAPIENTRY
+_mesa_EdgeFlagPointerEXT(GLsizei stride, GLsizei count, const GLboolean *ptr)
+{
+   (void) count;
+   _mesa_EdgeFlagPointer(stride, ptr);
+}
+
+
+void GLAPIENTRY
+_mesa_InterleavedArrays(GLenum format, GLsizei stride, const GLvoid *pointer)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLboolean tflag, cflag, nflag;  /* enable/disable flags */
+   GLint tcomps, ccomps, vcomps;   /* components per texcoord, color, vertex */
+   GLenum ctype = 0;               /* color type */
+   GLint coffset = 0, noffset = 0, voffset;/* color, normal, vertex offsets */
+   const GLint toffset = 0;        /* always zero */
+   GLint defstride;                /* default stride */
+   GLint c, f;
+
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   f = sizeof(GLfloat);
+   c = f * ((4 * sizeof(GLubyte) + (f - 1)) / f);
+
+   if (stride < 0) {
+      _mesa_error( ctx, GL_INVALID_VALUE, "glInterleavedArrays(stride)" );
+      return;
+   }
+
+   switch (format) {
+      case GL_V2F:
+         tflag = GL_FALSE;  cflag = GL_FALSE;  nflag = GL_FALSE;
+         tcomps = 0;  ccomps = 0;  vcomps = 2;
+         voffset = 0;
+         defstride = 2*f;
+         break;
+      case GL_V3F:
+         tflag = GL_FALSE;  cflag = GL_FALSE;  nflag = GL_FALSE;
+         tcomps = 0;  ccomps = 0;  vcomps = 3;
+         voffset = 0;
+         defstride = 3*f;
+         break;
+      case GL_C4UB_V2F:
+         tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_FALSE;
+         tcomps = 0;  ccomps = 4;  vcomps = 2;
+         ctype = GL_UNSIGNED_BYTE;
+         coffset = 0;
+         voffset = c;
+         defstride = c + 2*f;
+         break;
+      case GL_C4UB_V3F:
+         tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_FALSE;
+         tcomps = 0;  ccomps = 4;  vcomps = 3;
+         ctype = GL_UNSIGNED_BYTE;
+         coffset = 0;
+         voffset = c;
+         defstride = c + 3*f;
+         break;
+      case GL_C3F_V3F:
+         tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_FALSE;
+         tcomps = 0;  ccomps = 3;  vcomps = 3;
+         ctype = GL_FLOAT;
+         coffset = 0;
+         voffset = 3*f;
+         defstride = 6*f;
+         break;
+      case GL_N3F_V3F:
+         tflag = GL_FALSE;  cflag = GL_FALSE;  nflag = GL_TRUE;
+         tcomps = 0;  ccomps = 0;  vcomps = 3;
+         noffset = 0;
+         voffset = 3*f;
+         defstride = 6*f;
+         break;
+      case GL_C4F_N3F_V3F:
+         tflag = GL_FALSE;  cflag = GL_TRUE;  nflag = GL_TRUE;
+         tcomps = 0;  ccomps = 4;  vcomps = 3;
+         ctype = GL_FLOAT;
+         coffset = 0;
+         noffset = 4*f;
+         voffset = 7*f;
+         defstride = 10*f;
+         break;
+      case GL_T2F_V3F:
+         tflag = GL_TRUE;  cflag = GL_FALSE;  nflag = GL_FALSE;
+         tcomps = 2;  ccomps = 0;  vcomps = 3;
+         voffset = 2*f;
+         defstride = 5*f;
+         break;
+      case GL_T4F_V4F:
+         tflag = GL_TRUE;  cflag = GL_FALSE;  nflag = GL_FALSE;
+         tcomps = 4;  ccomps = 0;  vcomps = 4;
+         voffset = 4*f;
+         defstride = 8*f;
+         break;
+      case GL_T2F_C4UB_V3F:
+         tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_FALSE;
+         tcomps = 2;  ccomps = 4;  vcomps = 3;
+         ctype = GL_UNSIGNED_BYTE;
+         coffset = 2*f;
+         voffset = c+2*f;
+         defstride = c+5*f;
+         break;
+      case GL_T2F_C3F_V3F:
+         tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_FALSE;
+         tcomps = 2;  ccomps = 3;  vcomps = 3;
+         ctype = GL_FLOAT;
+         coffset = 2*f;
+         voffset = 5*f;
+         defstride = 8*f;
+         break;
+      case GL_T2F_N3F_V3F:
+         tflag = GL_TRUE;  cflag = GL_FALSE;  nflag = GL_TRUE;
+         tcomps = 2;  ccomps = 0;  vcomps = 3;
+         noffset = 2*f;
+         voffset = 5*f;
+         defstride = 8*f;
+         break;
+      case GL_T2F_C4F_N3F_V3F:
+         tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_TRUE;
+         tcomps = 2;  ccomps = 4;  vcomps = 3;
+         ctype = GL_FLOAT;
+         coffset = 2*f;
+         noffset = 6*f;
+         voffset = 9*f;
+         defstride = 12*f;
+         break;
+      case GL_T4F_C4F_N3F_V4F:
+         tflag = GL_TRUE;  cflag = GL_TRUE;  nflag = GL_TRUE;
+         tcomps = 4;  ccomps = 4;  vcomps = 4;
+         ctype = GL_FLOAT;
+         coffset = 4*f;
+         noffset = 8*f;
+         voffset = 11*f;
+         defstride = 15*f;
+         break;
+      default:
+         _mesa_error( ctx, GL_INVALID_ENUM, "glInterleavedArrays(format)" );
+         return;
+   }
+
+   if (stride==0) {
+      stride = defstride;
+   }
+
+   _mesa_DisableClientState( GL_EDGE_FLAG_ARRAY );
+   _mesa_DisableClientState( GL_INDEX_ARRAY );
+   /* XXX also disable secondary color and generic arrays? */
+
+   /* Texcoords */
+   if (tflag) {
+      _mesa_EnableClientState( GL_TEXTURE_COORD_ARRAY );
+      _mesa_TexCoordPointer( tcomps, GL_FLOAT, stride,
+                             (GLubyte *) pointer + toffset );
+   }
+   else {
+      _mesa_DisableClientState( GL_TEXTURE_COORD_ARRAY );
+   }
+
+   /* Color */
+   if (cflag) {
+      _mesa_EnableClientState( GL_COLOR_ARRAY );
+      _mesa_ColorPointer( ccomps, ctype, stride,
+			  (GLubyte *) pointer + coffset );
+   }
+   else {
+      _mesa_DisableClientState( GL_COLOR_ARRAY );
+   }
+
+
+   /* Normals */
+   if (nflag) {
+      _mesa_EnableClientState( GL_NORMAL_ARRAY );
+      _mesa_NormalPointer( GL_FLOAT, stride, (GLubyte *) pointer + noffset );
+   }
+   else {
+      _mesa_DisableClientState( GL_NORMAL_ARRAY );
+   }
+
+   /* Vertices */
+   _mesa_EnableClientState( GL_VERTEX_ARRAY );
+   _mesa_VertexPointer( vcomps, GL_FLOAT, stride,
+			(GLubyte *) pointer + voffset );
+}
+
+
+void GLAPIENTRY
+_mesa_LockArraysEXT(GLint first, GLsizei count)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   if (MESA_VERBOSE & VERBOSE_API)
+      _mesa_debug(ctx, "glLockArrays %d %d\n", first, count);
+
+   if (first < 0) {
+      _mesa_error( ctx, GL_INVALID_VALUE, "glLockArraysEXT(first)" );
+      return;
+   }
+   if (count <= 0) {
+      _mesa_error( ctx, GL_INVALID_VALUE, "glLockArraysEXT(count)" );
+      return;
+   }
+   if (ctx->Array.LockCount != 0) {
+      _mesa_error( ctx, GL_INVALID_OPERATION, "glLockArraysEXT(reentry)" );
+      return;
+   }
+
+   ctx->Array.LockFirst = first;
+   ctx->Array.LockCount = count;
+
+   ctx->NewState |= _NEW_ARRAY;
+   ctx->Array.NewState |= _NEW_ARRAY_ALL;
+}
+
+
+void GLAPIENTRY
+_mesa_UnlockArraysEXT( void )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   if (MESA_VERBOSE & VERBOSE_API)
+      _mesa_debug(ctx, "glUnlockArrays\n");
+
+   if (ctx->Array.LockCount == 0) {
+      _mesa_error( ctx, GL_INVALID_OPERATION, "glUnlockArraysEXT(reexit)" );
+      return;
+   }
+
+   ctx->Array.LockFirst = 0;
+   ctx->Array.LockCount = 0;
+   ctx->NewState |= _NEW_ARRAY;
+   ctx->Array.NewState |= _NEW_ARRAY_ALL;
+}
+
+
+/* GL_EXT_multi_draw_arrays */
+void GLAPIENTRY
+_mesa_MultiDrawArraysEXT( GLenum mode, const GLint *first,
+                          const GLsizei *count, GLsizei primcount )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLint i;
+
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   for (i = 0; i < primcount; i++) {
+      if (count[i] > 0) {
+         CALL_DrawArrays(ctx->Exec, (mode, first[i], count[i]));
+      }
+   }
+}
+
+
+/* GL_IBM_multimode_draw_arrays */
+void GLAPIENTRY
+_mesa_MultiModeDrawArraysIBM( const GLenum * mode, const GLint * first,
+			      const GLsizei * count,
+			      GLsizei primcount, GLint modestride )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLint i;
+
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   for ( i = 0 ; i < primcount ; i++ ) {
+      if ( count[i] > 0 ) {
+         GLenum m = *((GLenum *) ((GLubyte *) mode + i * modestride));
+	 CALL_DrawArrays(ctx->Exec, ( m, first[i], count[i] ));
+      }
+   }
+}
+
+
+/* GL_IBM_multimode_draw_arrays */
+void GLAPIENTRY
+_mesa_MultiModeDrawElementsIBM( const GLenum * mode, const GLsizei * count,
+				GLenum type, const GLvoid * const * indices,
+				GLsizei primcount, GLint modestride )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLint i;
+
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   /* XXX not sure about ARB_vertex_buffer_object handling here */
+
+   for ( i = 0 ; i < primcount ; i++ ) {
+      if ( count[i] > 0 ) {
+         GLenum m = *((GLenum *) ((GLubyte *) mode + i * modestride));
+	 CALL_DrawElements(ctx->Exec, ( m, count[i], type, indices[i] ));
+      }
+   }
+}
+
+
+/**
+ * GL_NV_primitive_restart and GL 3.1
+ */
+void GLAPIENTRY
+_mesa_PrimitiveRestartIndex(GLuint index)
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   if (!ctx->Extensions.NV_primitive_restart &&
+       ctx->VersionMajor * 10 + ctx->VersionMinor < 31) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glPrimitiveRestartIndexNV()");
+      return;
+   }
+
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
+
+   ctx->Array.RestartIndex = index;
+}
+
+
+/**
+ * See GL_ARB_instanced_arrays.
+ * Note that the instance divisor only applies to generic arrays, not
+ * the legacy vertex arrays.
+ */
+void GLAPIENTRY
+_mesa_VertexAttribDivisor(GLuint index, GLuint divisor)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   if (!ctx->Extensions.ARB_instanced_arrays) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glVertexAttribDivisor()");
+      return;
+   }
+
+   if (index >= ctx->Const.VertexProgram.MaxAttribs) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glVertexAttribDivisor(index = %u)",
+                  index);
+      return;
+   }
+
+   ctx->Array.ArrayObj->VertexAttrib[index].InstanceDivisor = divisor;
+}
+
+
+
+/**
+ * Copy one client vertex array to another.
+ */
+void
+_mesa_copy_client_array(struct gl_context *ctx,
+                        struct gl_client_array *dst,
+                        struct gl_client_array *src)
+{
+   dst->Size = src->Size;
+   dst->Type = src->Type;
+   dst->Format = src->Format;
+   dst->Stride = src->Stride;
+   dst->StrideB = src->StrideB;
+   dst->Ptr = src->Ptr;
+   dst->Enabled = src->Enabled;
+   dst->Normalized = src->Normalized;
+   dst->Integer = src->Integer;
+   dst->InstanceDivisor = src->InstanceDivisor;
+   dst->_ElementSize = src->_ElementSize;
+   _mesa_reference_buffer_object(ctx, &dst->BufferObj, src->BufferObj);
+   dst->_MaxElement = src->_MaxElement;
+}
+
+
+
+/**
+ * Print vertex array's fields.
+ */
+static void
+print_array(const char *name, GLint index, const struct gl_client_array *array)
+{
+   if (index >= 0)
+      printf("  %s[%d]: ", name, index);
+   else
+      printf("  %s: ", name);
+   printf("Ptr=%p, Type=0x%x, Size=%d, ElemSize=%u, Stride=%d, Buffer=%u(Size %lu), MaxElem=%u\n",
+	  array->Ptr, array->Type, array->Size,
+	  array->_ElementSize, array->StrideB,
+	  array->BufferObj->Name, (unsigned long) array->BufferObj->Size,
+	  array->_MaxElement);
+}
+
+
+/**
+ * Print current vertex object/array info.  For debug.
+ */
+void
+_mesa_print_arrays(struct gl_context *ctx)
+{
+   struct gl_array_object *arrayObj = ctx->Array.ArrayObj;
+   GLuint i;
+
+   _mesa_update_array_object_max_element(ctx, arrayObj);
+
+   printf("Array Object %u\n", arrayObj->Name);
+   if (arrayObj->Vertex.Enabled)
+      print_array("Vertex", -1, &arrayObj->Vertex);
+   if (arrayObj->Normal.Enabled)
+      print_array("Normal", -1, &arrayObj->Normal);
+   if (arrayObj->Color.Enabled)
+      print_array("Color", -1, &arrayObj->Color);
+   for (i = 0; i < Elements(arrayObj->TexCoord); i++)
+      if (arrayObj->TexCoord[i].Enabled)
+         print_array("TexCoord", i, &arrayObj->TexCoord[i]);
+   for (i = 0; i < Elements(arrayObj->VertexAttrib); i++)
+      if (arrayObj->VertexAttrib[i].Enabled)
+         print_array("Attrib", i, &arrayObj->VertexAttrib[i]);
+   printf("  _MaxElement = %u\n", arrayObj->_MaxElement);
+}
+
+
+/**
+ * Initialize vertex array state for given context.
+ */
+void 
+_mesa_init_varray(struct gl_context *ctx)
+{
+   ctx->Array.DefaultArrayObj = _mesa_new_array_object(ctx, 0);
+   _mesa_reference_array_object(ctx, &ctx->Array.ArrayObj,
+                                ctx->Array.DefaultArrayObj);
+   ctx->Array.ActiveTexture = 0;   /* GL_ARB_multitexture */
+
+   ctx->Array.Objects = _mesa_NewHashTable();
+}
+
+
+/**
+ * Callback for deleting an array object.  Called by _mesa_HashDeleteAll().
+ */
+static void
+delete_arrayobj_cb(GLuint id, void *data, void *userData)
+{
+   struct gl_array_object *arrayObj = (struct gl_array_object *) data;
+   struct gl_context *ctx = (struct gl_context *) userData;
+   _mesa_delete_array_object(ctx, arrayObj);
+}
+
+
+/**
+ * Free vertex array state for given context.
+ */
+void 
+_mesa_free_varray_data(struct gl_context *ctx)
+{
+   _mesa_HashDeleteAll(ctx->Array.Objects, delete_arrayobj_cb, ctx);
+   _mesa_DeleteHashTable(ctx->Array.Objects);
+}