pixman mesa git update 1 Mar 2011

1 files changed, 1487 insertions, 1501 deletions

diff --git a/mesalib/src/mesa/main/enable.c b/mesalib/src/mesa/main/enable.c
index 231278bee..f24709241 100644
--- a/mesalib/src/mesa/main/enable.c
+++ b/mesalib/src/mesa/main/enable.c
@@ -1,1501 +1,1487 @@
-/**

- * \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->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;

-}

+/**
+ * \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->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_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_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;
+}