xserver and mesa git update 28-12-2010

1 files changed, 1417 insertions, 1422 deletions

diff --git a/mesalib/src/mesa/main/texparam.c b/mesalib/src/mesa/main/texparam.c
index 745a0aeec..996218b16 100644
--- a/mesalib/src/mesa/main/texparam.c
+++ b/mesalib/src/mesa/main/texparam.c
@@ -1,1422 +1,1417 @@
-/*
- * Mesa 3-D graphics library
- * Version:  7.5
- *
- * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
- * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/** 
- * \file texparam.c
- *
- * glTexParameter-related functions
- */
-
-
-#include "main/glheader.h"
-#include "main/colormac.h"
-#include "main/context.h"
-#include "main/formats.h"
-#include "main/macros.h"
-#include "main/texcompress.h"
-#include "main/texparam.h"
-#include "main/teximage.h"
-#include "main/texstate.h"
-#include "program/prog_instruction.h"
-
-
-/**
- * Check if a coordinate wrap mode is supported for the texture target.
- * \return GL_TRUE if legal, GL_FALSE otherwise
- */
-static GLboolean 
-validate_texture_wrap_mode(GLcontext * ctx, GLenum target, GLenum wrap)
-{
-   const struct gl_extensions * const e = & ctx->Extensions;
-
-   if (wrap == GL_CLAMP || wrap == GL_CLAMP_TO_EDGE ||
-       (wrap == GL_CLAMP_TO_BORDER && e->ARB_texture_border_clamp)) {
-      /* any texture target */
-      return GL_TRUE;
-   }
-   else if (target != GL_TEXTURE_RECTANGLE_NV &&
-	    (wrap == GL_REPEAT ||
-	     (wrap == GL_MIRRORED_REPEAT &&
-	      e->ARB_texture_mirrored_repeat) ||
-	     (wrap == GL_MIRROR_CLAMP_EXT &&
-	      (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) ||
-	     (wrap == GL_MIRROR_CLAMP_TO_EDGE_EXT &&
-	      (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) ||
-	     (wrap == GL_MIRROR_CLAMP_TO_BORDER_EXT &&
-	      (e->EXT_texture_mirror_clamp)))) {
-      /* non-rectangle texture */
-      return GL_TRUE;
-   }
-
-   _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)", wrap );
-   return GL_FALSE;
-}
-
-
-/**
- * Get current texture object for given target.
- * Return NULL if any error (and record the error).
- * Note that this is different from _mesa_select_tex_object() in that proxy
- * targets are not accepted.
- * Only the glGetTexLevelParameter() functions accept proxy targets.
- */
-static struct gl_texture_object *
-get_texobj(GLcontext *ctx, GLenum target, GLboolean get)
-{
-   struct gl_texture_unit *texUnit;
-
-   if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "gl%sTexParameter(current unit)", get ? "Get" : "");
-      return NULL;
-   }
-
-   texUnit = _mesa_get_current_tex_unit(ctx);
-
-   switch (target) {
-   case GL_TEXTURE_1D:
-      return texUnit->CurrentTex[TEXTURE_1D_INDEX];
-   case GL_TEXTURE_2D:
-      return texUnit->CurrentTex[TEXTURE_2D_INDEX];
-   case GL_TEXTURE_3D:
-      return texUnit->CurrentTex[TEXTURE_3D_INDEX];
-   case GL_TEXTURE_CUBE_MAP:
-      if (ctx->Extensions.ARB_texture_cube_map) {
-         return texUnit->CurrentTex[TEXTURE_CUBE_INDEX];
-      }
-      break;
-   case GL_TEXTURE_RECTANGLE_NV:
-      if (ctx->Extensions.NV_texture_rectangle) {
-         return texUnit->CurrentTex[TEXTURE_RECT_INDEX];
-      }
-      break;
-   case GL_TEXTURE_1D_ARRAY_EXT:
-      if (ctx->Extensions.MESA_texture_array) {
-         return texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX];
-      }
-      break;
-   case GL_TEXTURE_2D_ARRAY_EXT:
-      if (ctx->Extensions.MESA_texture_array) {
-         return texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX];
-      }
-      break;
-   default:
-      ;
-   }
-
-   _mesa_error(ctx, GL_INVALID_ENUM,
-                  "gl%sTexParameter(target)", get ? "Get" : "");
-   return NULL;
-}
-
-
-/**
- * Convert GL_RED/GREEN/BLUE/ALPHA/ZERO/ONE to SWIZZLE_X/Y/Z/W/ZERO/ONE.
- * \return -1 if error.
- */
-static GLint
-comp_to_swizzle(GLenum comp)
-{
-   switch (comp) {
-   case GL_RED:
-      return SWIZZLE_X;
-   case GL_GREEN:
-      return SWIZZLE_Y;
-   case GL_BLUE:
-      return SWIZZLE_Z;
-   case GL_ALPHA:
-      return SWIZZLE_W;
-   case GL_ZERO:
-      return SWIZZLE_ZERO;
-   case GL_ONE:
-      return SWIZZLE_ONE;
-   default:
-      return -1;
-   }
-}
-
-
-static void
-set_swizzle_component(GLuint *swizzle, GLuint comp, GLuint swz)
-{
-   ASSERT(comp < 4);
-   ASSERT(swz <= SWIZZLE_NIL);
-   {
-      GLuint mask = 0x7 << (3 * comp);
-      GLuint s = (*swizzle & ~mask) | (swz << (3 * comp));
-      *swizzle = s;
-   }
-}
-
-
-/**
- * This is called just prior to changing any texture object state.
- * Any pending rendering will be flushed out, we'll set the _NEW_TEXTURE
- * state flag and then mark the texture object as 'incomplete' so that any
- * per-texture derived state gets recomputed.
- */
-static INLINE void
-flush(GLcontext *ctx, struct gl_texture_object *texObj)
-{
-   FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-   texObj->_Complete = GL_FALSE;
-}
-
-
-/**
- * Set an integer-valued texture parameter
- * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
- */
-static GLboolean
-set_tex_parameteri(GLcontext *ctx,
-                   struct gl_texture_object *texObj,
-                   GLenum pname, const GLint *params)
-{
-   switch (pname) {
-   case GL_TEXTURE_MIN_FILTER:
-      if (texObj->MinFilter == params[0])
-         return GL_FALSE;
-      switch (params[0]) {
-      case GL_NEAREST:
-      case GL_LINEAR:
-         flush(ctx, texObj);
-         texObj->MinFilter = params[0];
-         return GL_TRUE;
-      case GL_NEAREST_MIPMAP_NEAREST:
-      case GL_LINEAR_MIPMAP_NEAREST:
-      case GL_NEAREST_MIPMAP_LINEAR:
-      case GL_LINEAR_MIPMAP_LINEAR:
-         if (texObj->Target != GL_TEXTURE_RECTANGLE_NV) {
-            flush(ctx, texObj);
-            texObj->MinFilter = params[0];
-            return GL_TRUE;
-         }
-         /* fall-through */
-      default:
-         _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)",
-                      params[0] );
-      }
-      return GL_FALSE;
-
-   case GL_TEXTURE_MAG_FILTER:
-      if (texObj->MagFilter == params[0])
-         return GL_FALSE;
-      switch (params[0]) {
-      case GL_NEAREST:
-      case GL_LINEAR:
-         flush(ctx, texObj);
-         texObj->MagFilter = params[0];
-         return GL_TRUE;
-      default:
-         _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)",
-                      params[0]);
-      }
-      return GL_FALSE;
-
-   case GL_TEXTURE_WRAP_S:
-      if (texObj->WrapS == params[0])
-         return GL_FALSE;
-      if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
-         flush(ctx, texObj);
-         texObj->WrapS = params[0];
-         return GL_TRUE;
-      }
-      return GL_FALSE;
-
-   case GL_TEXTURE_WRAP_T:
-      if (texObj->WrapT == params[0])
-         return GL_FALSE;
-      if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
-         flush(ctx, texObj);
-         texObj->WrapT = params[0];
-         return GL_TRUE;
-      }
-      return GL_FALSE;
-
-   case GL_TEXTURE_WRAP_R:
-      if (texObj->WrapR == params[0])
-         return GL_FALSE;
-      if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
-         flush(ctx, texObj);
-         texObj->WrapR = params[0];
-         return GL_TRUE;
-      }
-      return GL_FALSE;
-
-   case GL_TEXTURE_BASE_LEVEL:
-      if (texObj->BaseLevel == params[0])
-         return GL_FALSE;
-      if (params[0] < 0 ||
-          (texObj->Target == GL_TEXTURE_RECTANGLE_ARB && params[0] != 0)) {
-         _mesa_error(ctx, GL_INVALID_VALUE,
-                     "glTexParameter(param=%d)", params[0]);
-         return GL_FALSE;
-      }
-      flush(ctx, texObj);
-      texObj->BaseLevel = params[0];
-      return GL_TRUE;
-
-   case GL_TEXTURE_MAX_LEVEL:
-      if (texObj->MaxLevel == params[0])
-         return GL_FALSE;
-      if (params[0] < 0 || texObj->Target == GL_TEXTURE_RECTANGLE_ARB) {
-         _mesa_error(ctx, GL_INVALID_OPERATION,
-                     "glTexParameter(param=%d)", params[0]);
-         return GL_FALSE;
-      }
-      flush(ctx, texObj);
-      texObj->MaxLevel = params[0];
-      return GL_TRUE;
-
-   case GL_GENERATE_MIPMAP_SGIS:
-      if (ctx->Extensions.SGIS_generate_mipmap) {
-         if (texObj->GenerateMipmap != params[0]) {
-            flush(ctx, texObj);
-            texObj->GenerateMipmap = params[0] ? GL_TRUE : GL_FALSE;
-            return GL_TRUE;
-         }
-         return GL_FALSE;
-      }
-      else {
-         _mesa_error(ctx, GL_INVALID_ENUM,
-                     "glTexParameter(pname=GL_GENERATE_MIPMAP_SGIS)");
-      }
-      return GL_FALSE;
-
-   case GL_TEXTURE_COMPARE_MODE_ARB:
-      if (ctx->Extensions.ARB_shadow &&
-          (params[0] == GL_NONE ||
-           params[0] == GL_COMPARE_R_TO_TEXTURE_ARB)) {
-         if (texObj->CompareMode != params[0]) {
-            flush(ctx, texObj);
-            texObj->CompareMode = params[0];
-            return GL_TRUE;
-         }
-         return GL_FALSE;
-      }
-      else {
-         _mesa_error(ctx, GL_INVALID_ENUM,
-                     "glTexParameter(GL_TEXTURE_COMPARE_MODE_ARB)");
-      }
-      return GL_FALSE;
-
-   case GL_TEXTURE_COMPARE_FUNC_ARB:
-      if (ctx->Extensions.ARB_shadow) {
-         if (texObj->CompareFunc == params[0])
-            return GL_FALSE;
-         switch (params[0]) {
-         case GL_LEQUAL:
-         case GL_GEQUAL:
-            flush(ctx, texObj);
-            texObj->CompareFunc = params[0];
-            return GL_TRUE;
-         case GL_EQUAL:
-         case GL_NOTEQUAL:
-         case GL_LESS:
-         case GL_GREATER:
-         case GL_ALWAYS:
-         case GL_NEVER:
-            if (ctx->Extensions.EXT_shadow_funcs) {
-               flush(ctx, texObj);
-               texObj->CompareFunc = params[0];
-               return GL_TRUE;
-            }
-            /* fall-through */
-         default:
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glTexParameter(GL_TEXTURE_COMPARE_FUNC_ARB)");
-         }
-      }
-      else {
-         _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);
-      }
-      return GL_FALSE;
-
-   case GL_DEPTH_TEXTURE_MODE_ARB:
-      if (ctx->Extensions.ARB_depth_texture &&
-          (params[0] == GL_LUMINANCE ||
-           params[0] == GL_INTENSITY ||
-           params[0] == GL_ALPHA)) {
-         if (texObj->DepthMode != params[0]) {
-            flush(ctx, texObj);
-            texObj->DepthMode = params[0];
-            return GL_TRUE;
-         }
-      }
-      else {
-         _mesa_error(ctx, GL_INVALID_ENUM,
-                     "glTexParameter(GL_DEPTH_TEXTURE_MODE_ARB)");
-      }
-      return GL_FALSE;
-
-#if FEATURE_OES_draw_texture
-   case GL_TEXTURE_CROP_RECT_OES:
-      texObj->CropRect[0] = params[0];
-      texObj->CropRect[1] = params[1];
-      texObj->CropRect[2] = params[2];
-      texObj->CropRect[3] = params[3];
-      return GL_TRUE;
-#endif
-
-   case GL_TEXTURE_SWIZZLE_R_EXT:
-   case GL_TEXTURE_SWIZZLE_G_EXT:
-   case GL_TEXTURE_SWIZZLE_B_EXT:
-   case GL_TEXTURE_SWIZZLE_A_EXT:
-      if (ctx->Extensions.EXT_texture_swizzle) {
-         const GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT;
-         const GLint swz = comp_to_swizzle(params[0]);
-         if (swz < 0) {
-            _mesa_error(ctx, GL_INVALID_OPERATION,
-                        "glTexParameter(swizzle 0x%x)", params[0]);
-            return GL_FALSE;
-         }
-         ASSERT(comp < 4);
-         if (swz >= 0) {
-            flush(ctx, texObj);
-            texObj->Swizzle[comp] = params[0];
-            set_swizzle_component(&texObj->_Swizzle, comp, swz);
-            return GL_TRUE;
-         }
-      }
-      _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);
-      return GL_FALSE;
-
-   case GL_TEXTURE_SWIZZLE_RGBA_EXT:
-      if (ctx->Extensions.EXT_texture_swizzle) {
-         GLuint comp;
-         flush(ctx, texObj);
-         for (comp = 0; comp < 4; comp++) {
-            const GLint swz = comp_to_swizzle(params[comp]);
-            if (swz >= 0) {
-               texObj->Swizzle[comp] = params[comp];
-               set_swizzle_component(&texObj->_Swizzle, comp, swz);
-            }
-            else {
-               _mesa_error(ctx, GL_INVALID_OPERATION,
-                           "glTexParameter(swizzle 0x%x)", params[comp]);
-               return GL_FALSE;
-            }
-         }
-         return GL_TRUE;
-      }
-      _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);
-      return GL_FALSE;
-
-   default:
-      _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);
-   }
-   return GL_FALSE;
-}
-
-
-/**
- * Set a float-valued texture parameter
- * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
- */
-static GLboolean
-set_tex_parameterf(GLcontext *ctx,
-                   struct gl_texture_object *texObj,
-                   GLenum pname, const GLfloat *params)
-{
-   switch (pname) {
-   case GL_TEXTURE_MIN_LOD:
-      if (texObj->MinLod == params[0])
-         return GL_FALSE;
-      flush(ctx, texObj);
-      texObj->MinLod = params[0];
-      return GL_TRUE;
-
-   case GL_TEXTURE_MAX_LOD:
-      if (texObj->MaxLod == params[0])
-         return GL_FALSE;
-      flush(ctx, texObj);
-      texObj->MaxLod = params[0];
-      return GL_TRUE;
-
-   case GL_TEXTURE_PRIORITY:
-      flush(ctx, texObj);
-      texObj->Priority = CLAMP(params[0], 0.0F, 1.0F);
-      return GL_TRUE;
-
-   case GL_TEXTURE_MAX_ANISOTROPY_EXT:
-      if (ctx->Extensions.EXT_texture_filter_anisotropic) {
-         if (texObj->MaxAnisotropy == params[0])
-            return GL_FALSE;
-         if (params[0] < 1.0) {
-            _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
-            return GL_FALSE;
-         }
-         flush(ctx, texObj);
-         /* clamp to max, that's what NVIDIA does */
-         texObj->MaxAnisotropy = MIN2(params[0],
-                                      ctx->Const.MaxTextureMaxAnisotropy);
-         return GL_TRUE;
-      }
-      else {
-         static GLuint count = 0;
-         if (count++ < 10)
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glTexParameter(pname=GL_TEXTURE_MAX_ANISOTROPY_EXT)");
-      }
-      return GL_FALSE;
-
-   case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
-      if (ctx->Extensions.ARB_shadow_ambient) {
-         if (texObj->CompareFailValue != params[0]) {
-            flush(ctx, texObj);
-            texObj->CompareFailValue = CLAMP(params[0], 0.0F, 1.0F);
-            return GL_TRUE;
-         }
-      }
-      else {
-         _mesa_error(ctx, GL_INVALID_ENUM,
-                    "glTexParameter(pname=GL_TEXTURE_COMPARE_FAIL_VALUE_ARB)");
-      }
-      return GL_FALSE;
-
-   case GL_TEXTURE_LOD_BIAS:
-      /* NOTE: this is really part of OpenGL 1.4, not EXT_texture_lod_bias */
-      if (ctx->Extensions.EXT_texture_lod_bias) {
-         if (texObj->LodBias != params[0]) {
-            flush(ctx, texObj);
-            texObj->LodBias = params[0];
-            return GL_TRUE;
-         }
-         return GL_FALSE;
-      }
-      break;
-
-   case GL_TEXTURE_BORDER_COLOR:
-      flush(ctx, texObj);
-      texObj->BorderColor.f[RCOMP] = params[0];
-      texObj->BorderColor.f[GCOMP] = params[1];
-      texObj->BorderColor.f[BCOMP] = params[2];
-      texObj->BorderColor.f[ACOMP] = params[3];
-      return GL_TRUE;
-
-   default:
-      _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);
-   }
-   return GL_FALSE;
-}
-
-
-void GLAPIENTRY
-_mesa_TexParameterf(GLenum target, GLenum pname, GLfloat param)
-{
-   GLboolean need_update;
-   struct gl_texture_object *texObj;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   texObj = get_texobj(ctx, target, GL_FALSE);
-   if (!texObj)
-      return;
-
-   switch (pname) {
-   case GL_TEXTURE_MIN_FILTER:
-   case GL_TEXTURE_MAG_FILTER:
-   case GL_TEXTURE_WRAP_S:
-   case GL_TEXTURE_WRAP_T:
-   case GL_TEXTURE_WRAP_R:
-   case GL_TEXTURE_BASE_LEVEL:
-   case GL_TEXTURE_MAX_LEVEL:
-   case GL_GENERATE_MIPMAP_SGIS:
-   case GL_TEXTURE_COMPARE_MODE_ARB:
-   case GL_TEXTURE_COMPARE_FUNC_ARB:
-   case GL_DEPTH_TEXTURE_MODE_ARB:
-      {
-         /* convert float param to int */
-         GLint p[4];
-         p[0] = (GLint) param;
-         p[1] = p[2] = p[3] = 0;
-         need_update = set_tex_parameteri(ctx, texObj, pname, p);
-      }
-      break;
-   default:
-      {
-         /* this will generate an error if pname is illegal */
-         GLfloat p[4];
-         p[0] = param;
-         p[1] = p[2] = p[3] = 0.0F;
-         need_update = set_tex_parameterf(ctx, texObj, pname, p);
-      }
-   }
-
-   if (ctx->Driver.TexParameter && need_update) {
-      ctx->Driver.TexParameter(ctx, target, texObj, pname, &param);
-   }
-}
-
-
-void GLAPIENTRY
-_mesa_TexParameterfv(GLenum target, GLenum pname, const GLfloat *params)
-{
-   GLboolean need_update;
-   struct gl_texture_object *texObj;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   texObj = get_texobj(ctx, target, GL_FALSE);
-   if (!texObj)
-      return;
-
-   switch (pname) {
-   case GL_TEXTURE_MIN_FILTER:
-   case GL_TEXTURE_MAG_FILTER:
-   case GL_TEXTURE_WRAP_S:
-   case GL_TEXTURE_WRAP_T:
-   case GL_TEXTURE_WRAP_R:
-   case GL_TEXTURE_BASE_LEVEL:
-   case GL_TEXTURE_MAX_LEVEL:
-   case GL_GENERATE_MIPMAP_SGIS:
-   case GL_TEXTURE_COMPARE_MODE_ARB:
-   case GL_TEXTURE_COMPARE_FUNC_ARB:
-   case GL_DEPTH_TEXTURE_MODE_ARB:
-      {
-         /* convert float param to int */
-         GLint p[4];
-         p[0] = (GLint) params[0];
-         p[1] = p[2] = p[3] = 0;
-         need_update = set_tex_parameteri(ctx, texObj, pname, p);
-      }
-      break;
-
-#if FEATURE_OES_draw_texture
-   case GL_TEXTURE_CROP_RECT_OES:
-      {
-         /* convert float params to int */
-         GLint iparams[4];
-         iparams[0] = (GLint) params[0];
-         iparams[1] = (GLint) params[1];
-         iparams[2] = (GLint) params[2];
-         iparams[3] = (GLint) params[3];
-         need_update = set_tex_parameteri(ctx, texObj, pname, iparams);
-      }
-      break;
-#endif
-
-   default:
-      /* this will generate an error if pname is illegal */
-      need_update = set_tex_parameterf(ctx, texObj, pname, params);
-   }
-
-   if (ctx->Driver.TexParameter && need_update) {
-      ctx->Driver.TexParameter(ctx, target, texObj, pname, params);
-   }
-}
-
-
-void GLAPIENTRY
-_mesa_TexParameteri(GLenum target, GLenum pname, GLint param)
-{
-   GLboolean need_update;
-   struct gl_texture_object *texObj;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   texObj = get_texobj(ctx, target, GL_FALSE);
-   if (!texObj)
-      return;
-
-   switch (pname) {
-   case GL_TEXTURE_MIN_LOD:
-   case GL_TEXTURE_MAX_LOD:
-   case GL_TEXTURE_PRIORITY:
-   case GL_TEXTURE_MAX_ANISOTROPY_EXT:
-   case GL_TEXTURE_LOD_BIAS:
-   case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
-      {
-         GLfloat fparam[4];
-         fparam[0] = (GLfloat) param;
-         fparam[1] = fparam[2] = fparam[3] = 0.0F;
-         /* convert int param to float */
-         need_update = set_tex_parameterf(ctx, texObj, pname, fparam);
-      }
-      break;
-   default:
-      /* this will generate an error if pname is illegal */
-      {
-         GLint iparam[4];
-         iparam[0] = param;
-         iparam[1] = iparam[2] = iparam[3] = 0;
-         need_update = set_tex_parameteri(ctx, texObj, pname, iparam);
-      }
-   }
-
-   if (ctx->Driver.TexParameter && need_update) {
-      GLfloat fparam = (GLfloat) param;
-      ctx->Driver.TexParameter(ctx, target, texObj, pname, &fparam);
-   }
-}
-
-
-void GLAPIENTRY
-_mesa_TexParameteriv(GLenum target, GLenum pname, const GLint *params)
-{
-   GLboolean need_update;
-   struct gl_texture_object *texObj;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   texObj = get_texobj(ctx, target, GL_FALSE);
-   if (!texObj)
-      return;
-
-   switch (pname) {
-   case GL_TEXTURE_BORDER_COLOR:
-      {
-         /* convert int params to float */
-         GLfloat fparams[4];
-         fparams[0] = INT_TO_FLOAT(params[0]);
-         fparams[1] = INT_TO_FLOAT(params[1]);
-         fparams[2] = INT_TO_FLOAT(params[2]);
-         fparams[3] = INT_TO_FLOAT(params[3]);
-         need_update = set_tex_parameterf(ctx, texObj, pname, fparams);
-      }
-      break;
-   case GL_TEXTURE_MIN_LOD:
-   case GL_TEXTURE_MAX_LOD:
-   case GL_TEXTURE_PRIORITY:
-   case GL_TEXTURE_MAX_ANISOTROPY_EXT:
-   case GL_TEXTURE_LOD_BIAS:
-   case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
-      {
-         /* convert int param to float */
-         GLfloat fparams[4];
-         fparams[0] = (GLfloat) params[0];
-         fparams[1] = fparams[2] = fparams[3] = 0.0F;
-         need_update = set_tex_parameterf(ctx, texObj, pname, fparams);
-      }
-      break;
-   default:
-      /* this will generate an error if pname is illegal */
-      need_update = set_tex_parameteri(ctx, texObj, pname, params);
-   }
-
-   if (ctx->Driver.TexParameter && need_update) {
-      GLfloat fparams[4];
-      fparams[0] = INT_TO_FLOAT(params[0]);
-      if (pname == GL_TEXTURE_BORDER_COLOR ||
-          pname == GL_TEXTURE_CROP_RECT_OES) {
-         fparams[1] = INT_TO_FLOAT(params[1]);
-         fparams[2] = INT_TO_FLOAT(params[2]);
-         fparams[3] = INT_TO_FLOAT(params[3]);
-      }
-      ctx->Driver.TexParameter(ctx, target, texObj, pname, fparams);
-   }
-}
-
-
-/**
- * Set tex parameter to integer value(s).  Primarily intended to set
- * integer-valued texture border color (for integer-valued textures).
- * New in GL 3.0.
- */
-void GLAPIENTRY
-_mesa_TexParameterIiv(GLenum target, GLenum pname, const GLint *params)
-{
-   struct gl_texture_object *texObj;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   texObj = get_texobj(ctx, target, GL_FALSE);
-   if (!texObj)
-      return;
-
-   switch (pname) {
-   case GL_TEXTURE_BORDER_COLOR:
-      FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-      /* set the integer-valued border color */
-      COPY_4V(texObj->BorderColor.i, params);
-      break;
-   default:
-      _mesa_TexParameteriv(target, pname, params);
-      break;
-   }
-   /* XXX no driver hook for TexParameterIiv() yet */
-}
-
-
-/**
- * Set tex parameter to unsigned integer value(s).  Primarily intended to set
- * uint-valued texture border color (for integer-valued textures).
- * New in GL 3.0
- */
-void GLAPIENTRY
-_mesa_TexParameterIuiv(GLenum target, GLenum pname, const GLuint *params)
-{
-   struct gl_texture_object *texObj;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   texObj = get_texobj(ctx, target, GL_FALSE);
-   if (!texObj)
-      return;
-
-   switch (pname) {
-   case GL_TEXTURE_BORDER_COLOR:
-      FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-      /* set the unsigned integer-valued border color */
-      COPY_4V(texObj->BorderColor.ui, params);
-      break;
-   default:
-      _mesa_TexParameteriv(target, pname, (const GLint *) params);
-      break;
-   }
-   /* XXX no driver hook for TexParameterIuiv() yet */
-}
-
-
-
-
-void GLAPIENTRY
-_mesa_GetTexLevelParameterfv( GLenum target, GLint level,
-                              GLenum pname, GLfloat *params )
-{
-   GLint iparam;
-   _mesa_GetTexLevelParameteriv( target, level, pname, &iparam );
-   *params = (GLfloat) iparam;
-}
-
-
-void GLAPIENTRY
-_mesa_GetTexLevelParameteriv( GLenum target, GLint level,
-                              GLenum pname, GLint *params )
-{
-   const struct gl_texture_unit *texUnit;
-   struct gl_texture_object *texObj;
-   const struct gl_texture_image *img = NULL;
-   GLboolean isProxy;
-   GLint maxLevels;
-   gl_format texFormat;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) {
-      _mesa_error(ctx, GL_INVALID_OPERATION,
-                  "glGetTexLevelParameteriv(current unit)");
-      return;
-   }
-
-   texUnit = _mesa_get_current_tex_unit(ctx);
-
-   /* this will catch bad target values */
-   maxLevels = _mesa_max_texture_levels(ctx, target);
-   if (maxLevels == 0) {
-      _mesa_error(ctx, GL_INVALID_ENUM,
-                  "glGetTexLevelParameter[if]v(target=0x%x)", target);
-      return;
-   }
-
-   if (level < 0 || level >= maxLevels) {
-      _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexLevelParameter[if]v" );
-      return;
-   }
-
-   texObj = _mesa_select_tex_object(ctx, texUnit, target);
-   _mesa_lock_texture(ctx, texObj);
-
-   img = _mesa_select_tex_image(ctx, texObj, target, level);
-   if (!img || !img->TexFormat) {
-      /* undefined texture image */
-      if (pname == GL_TEXTURE_COMPONENTS)
-         *params = 1;
-      else
-         *params = 0;
-      goto out;
-   }
-
-   texFormat = img->TexFormat;
-
-   isProxy = _mesa_is_proxy_texture(target);
-
-   switch (pname) {
-      case GL_TEXTURE_WIDTH:
-         *params = img->Width;
-         break;
-      case GL_TEXTURE_HEIGHT:
-         *params = img->Height;
-         break;
-      case GL_TEXTURE_DEPTH:
-         *params = img->Depth;
-         break;
-      case GL_TEXTURE_INTERNAL_FORMAT:
-         if (_mesa_is_format_compressed(img->TexFormat)) {
-            /* need to return the actual compressed format */
-            *params = _mesa_compressed_format_to_glenum(ctx, img->TexFormat);
-         }
-         else {
-            /* return the user's requested internal format */
-            *params = img->InternalFormat;
-         }
-         break;
-      case GL_TEXTURE_BORDER:
-         *params = img->Border;
-         break;
-      case GL_TEXTURE_RED_SIZE:
-      case GL_TEXTURE_GREEN_SIZE:
-      case GL_TEXTURE_BLUE_SIZE:
-         if (img->_BaseFormat == GL_RGB || img->_BaseFormat == GL_RGBA)
-            *params = _mesa_get_format_bits(texFormat, pname);
-         else
-            *params = 0;
-         break;
-      case GL_TEXTURE_ALPHA_SIZE:
-         if (img->_BaseFormat == GL_ALPHA ||
-             img->_BaseFormat == GL_LUMINANCE_ALPHA ||
-             img->_BaseFormat == GL_RGBA)
-            *params = _mesa_get_format_bits(texFormat, pname);
-         else
-            *params = 0;
-         break;
-      case GL_TEXTURE_INTENSITY_SIZE:
-         if (img->_BaseFormat != GL_INTENSITY)
-            *params = 0;
-         else {
-            *params = _mesa_get_format_bits(texFormat, pname);
-            if (*params == 0) {
-               /* intensity probably stored as rgb texture */
-               *params = MIN2(_mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE),
-                              _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE));
-            }
-         }
-         break;
-      case GL_TEXTURE_LUMINANCE_SIZE:
-         if (img->_BaseFormat != GL_LUMINANCE &&
-             img->_BaseFormat != GL_LUMINANCE_ALPHA)
-            *params = 0;
-         else {
-            *params = _mesa_get_format_bits(texFormat, pname);
-            if (*params == 0) {
-               /* luminance probably stored as rgb texture */
-               *params = MIN2(_mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE),
-                              _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE));
-            }
-         }
-         break;
-      case GL_TEXTURE_INDEX_SIZE_EXT:
-         if (img->_BaseFormat == GL_COLOR_INDEX)
-            *params = _mesa_get_format_bits(texFormat, pname);
-         else
-            *params = 0;
-         break;
-      case GL_TEXTURE_DEPTH_SIZE_ARB:
-         if (ctx->Extensions.ARB_depth_texture)
-            *params = _mesa_get_format_bits(texFormat, pname);
-         else
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glGetTexLevelParameter[if]v(pname)");
-         break;
-      case GL_TEXTURE_STENCIL_SIZE_EXT:
-         if (ctx->Extensions.EXT_packed_depth_stencil ||
-             ctx->Extensions.ARB_framebuffer_object) {
-            *params = _mesa_get_format_bits(texFormat, pname);
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glGetTexLevelParameter[if]v(pname)");
-         }
-         break;
-      case GL_TEXTURE_SHARED_SIZE:
-         if (ctx->VersionMajor >= 3) {
-            /* XXX return number of exponent bits for shared exponent texture
-             * formats, like GL_RGB9_E5.
-             */
-            *params = 0;
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glGetTexLevelParameter[if]v(pname)");
-         }
-         break;
-
-      /* GL_ARB_texture_compression */
-      case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:
-	 if (_mesa_is_format_compressed(img->TexFormat) && !isProxy) {
-            *params = _mesa_format_image_size(texFormat, img->Width,
-                                              img->Height, img->Depth);
-	 }
-	 else {
-	    _mesa_error(ctx, GL_INVALID_OPERATION,
-			"glGetTexLevelParameter[if]v(pname)");
-	 }
-         break;
-      case GL_TEXTURE_COMPRESSED:
-         *params = (GLint) _mesa_is_format_compressed(img->TexFormat);
-         break;
-
-      /* GL_ARB_texture_float */
-      case GL_TEXTURE_RED_TYPE_ARB:
-         if (ctx->Extensions.ARB_texture_float) {
-            *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE) ?
-               _mesa_get_format_datatype(texFormat) : GL_NONE;
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glGetTexLevelParameter[if]v(pname)");
-         }
-         break;
-      case GL_TEXTURE_GREEN_TYPE_ARB:
-         if (ctx->Extensions.ARB_texture_float) {
-            *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE) ?
-               _mesa_get_format_datatype(texFormat) : GL_NONE;
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glGetTexLevelParameter[if]v(pname)");
-         }
-         break;
-      case GL_TEXTURE_BLUE_TYPE_ARB:
-         if (ctx->Extensions.ARB_texture_float) {
-            *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_BLUE_SIZE) ?
-               _mesa_get_format_datatype(texFormat) : GL_NONE;
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glGetTexLevelParameter[if]v(pname)");
-         }
-         break;
-      case GL_TEXTURE_ALPHA_TYPE_ARB:
-         if (ctx->Extensions.ARB_texture_float) {
-            *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_ALPHA_SIZE) ?
-               _mesa_get_format_datatype(texFormat) : GL_NONE;
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glGetTexLevelParameter[if]v(pname)");
-         }
-         break;
-      case GL_TEXTURE_LUMINANCE_TYPE_ARB:
-         if (ctx->Extensions.ARB_texture_float) {
-            *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_LUMINANCE_SIZE) ?
-               _mesa_get_format_datatype(texFormat) : GL_NONE;
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glGetTexLevelParameter[if]v(pname)");
-         }
-         break;
-      case GL_TEXTURE_INTENSITY_TYPE_ARB:
-         if (ctx->Extensions.ARB_texture_float) {
-            *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_INTENSITY_SIZE) ?
-               _mesa_get_format_datatype(texFormat) : GL_NONE;
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glGetTexLevelParameter[if]v(pname)");
-         }
-         break;
-      case GL_TEXTURE_DEPTH_TYPE_ARB:
-         if (ctx->Extensions.ARB_texture_float) {
-            *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_DEPTH_SIZE) ?
-               _mesa_get_format_datatype(texFormat) : GL_NONE;
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glGetTexLevelParameter[if]v(pname)");
-         }
-         break;
-
-      default:
-         _mesa_error(ctx, GL_INVALID_ENUM,
-                     "glGetTexLevelParameter[if]v(pname)");
-   }
-
- out:
-   _mesa_unlock_texture(ctx, texObj);
-}
-
-
-
-void GLAPIENTRY
-_mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params )
-{
-   struct gl_texture_object *obj;
-   GLboolean error = GL_FALSE;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   obj = get_texobj(ctx, target, GL_TRUE);
-   if (!obj)
-      return;
-
-   _mesa_lock_texture(ctx, obj);
-   switch (pname) {
-      case GL_TEXTURE_MAG_FILTER:
-	 *params = ENUM_TO_FLOAT(obj->MagFilter);
-	 break;
-      case GL_TEXTURE_MIN_FILTER:
-         *params = ENUM_TO_FLOAT(obj->MinFilter);
-         break;
-      case GL_TEXTURE_WRAP_S:
-         *params = ENUM_TO_FLOAT(obj->WrapS);
-         break;
-      case GL_TEXTURE_WRAP_T:
-         *params = ENUM_TO_FLOAT(obj->WrapT);
-         break;
-      case GL_TEXTURE_WRAP_R:
-         *params = ENUM_TO_FLOAT(obj->WrapR);
-         break;
-      case GL_TEXTURE_BORDER_COLOR:
-         params[0] = CLAMP(obj->BorderColor.f[0], 0.0F, 1.0F);
-         params[1] = CLAMP(obj->BorderColor.f[1], 0.0F, 1.0F);
-         params[2] = CLAMP(obj->BorderColor.f[2], 0.0F, 1.0F);
-         params[3] = CLAMP(obj->BorderColor.f[3], 0.0F, 1.0F);
-         break;
-      case GL_TEXTURE_RESIDENT:
-         {
-            GLboolean resident;
-            if (ctx->Driver.IsTextureResident)
-               resident = ctx->Driver.IsTextureResident(ctx, obj);
-            else
-               resident = GL_TRUE;
-            *params = ENUM_TO_FLOAT(resident);
-         }
-         break;
-      case GL_TEXTURE_PRIORITY:
-         *params = obj->Priority;
-         break;
-      case GL_TEXTURE_MIN_LOD:
-         *params = obj->MinLod;
-         break;
-      case GL_TEXTURE_MAX_LOD:
-         *params = obj->MaxLod;
-         break;
-      case GL_TEXTURE_BASE_LEVEL:
-         *params = (GLfloat) obj->BaseLevel;
-         break;
-      case GL_TEXTURE_MAX_LEVEL:
-         *params = (GLfloat) obj->MaxLevel;
-         break;
-      case GL_TEXTURE_MAX_ANISOTROPY_EXT:
-         if (ctx->Extensions.EXT_texture_filter_anisotropic) {
-            *params = obj->MaxAnisotropy;
-         }
-	 else
-	    error = GL_TRUE;
-         break;
-      case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
-         if (ctx->Extensions.ARB_shadow_ambient) {
-            *params = obj->CompareFailValue;
-         }
-	 else 
-	    error = GL_TRUE;
-         break;
-      case GL_GENERATE_MIPMAP_SGIS:
-         if (ctx->Extensions.SGIS_generate_mipmap) {
-            *params = (GLfloat) obj->GenerateMipmap;
-         }
-	 else 
-	    error = GL_TRUE;
-         break;
-      case GL_TEXTURE_COMPARE_MODE_ARB:
-         if (ctx->Extensions.ARB_shadow) {
-            *params = (GLfloat) obj->CompareMode;
-         }
-	 else 
-	    error = GL_TRUE;
-         break;
-      case GL_TEXTURE_COMPARE_FUNC_ARB:
-         if (ctx->Extensions.ARB_shadow) {
-            *params = (GLfloat) obj->CompareFunc;
-         }
-	 else 
-	    error = GL_TRUE;
-         break;
-      case GL_DEPTH_TEXTURE_MODE_ARB:
-         if (ctx->Extensions.ARB_depth_texture) {
-            *params = (GLfloat) obj->DepthMode;
-         }
-	 else 
-	    error = GL_TRUE;
-         break;
-      case GL_TEXTURE_LOD_BIAS:
-         if (ctx->Extensions.EXT_texture_lod_bias) {
-            *params = obj->LodBias;
-         }
-	 else 
-	    error = GL_TRUE;
-         break;
-#if FEATURE_OES_draw_texture
-      case GL_TEXTURE_CROP_RECT_OES:
-         params[0] = obj->CropRect[0];
-         params[1] = obj->CropRect[1];
-         params[2] = obj->CropRect[2];
-         params[3] = obj->CropRect[3];
-         break;
-#endif
-
-      case GL_TEXTURE_SWIZZLE_R_EXT:
-      case GL_TEXTURE_SWIZZLE_G_EXT:
-      case GL_TEXTURE_SWIZZLE_B_EXT:
-      case GL_TEXTURE_SWIZZLE_A_EXT:
-         if (ctx->Extensions.EXT_texture_swizzle) {
-            GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT;
-            *params = (GLfloat) obj->Swizzle[comp];
-         }
-         else {
-            error = GL_TRUE;
-         }
-         break;
-
-      case GL_TEXTURE_SWIZZLE_RGBA_EXT:
-         if (ctx->Extensions.EXT_texture_swizzle) {
-            GLuint comp;
-            for (comp = 0; comp < 4; comp++) {
-               params[comp] = (GLfloat) obj->Swizzle[comp];
-            }
-         }
-         else {
-            error = GL_TRUE;
-         }
-         break;
-
-      default:
-	 error = GL_TRUE;
-	 break;
-   }
-
-   if (error)
-      _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname=0x%x)",
-		  pname);
-
-   _mesa_unlock_texture(ctx, obj);
-}
-
-
-void GLAPIENTRY
-_mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
-{
-   struct gl_texture_object *obj;
-   GLboolean error = GL_FALSE;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-    obj = get_texobj(ctx, target, GL_TRUE);
-    if (!obj)
-       return;
-
-   _mesa_lock_texture(ctx, obj);
-   switch (pname) {
-      case GL_TEXTURE_MAG_FILTER:
-         *params = (GLint) obj->MagFilter;
-         break;;
-      case GL_TEXTURE_MIN_FILTER:
-         *params = (GLint) obj->MinFilter;
-         break;;
-      case GL_TEXTURE_WRAP_S:
-         *params = (GLint) obj->WrapS;
-         break;;
-      case GL_TEXTURE_WRAP_T:
-         *params = (GLint) obj->WrapT;
-         break;;
-      case GL_TEXTURE_WRAP_R:
-         *params = (GLint) obj->WrapR;
-         break;;
-      case GL_TEXTURE_BORDER_COLOR:
-         {
-            GLfloat b[4];
-            b[0] = CLAMP(obj->BorderColor.f[0], 0.0F, 1.0F);
-            b[1] = CLAMP(obj->BorderColor.f[1], 0.0F, 1.0F);
-            b[2] = CLAMP(obj->BorderColor.f[2], 0.0F, 1.0F);
-            b[3] = CLAMP(obj->BorderColor.f[3], 0.0F, 1.0F);
-            params[0] = FLOAT_TO_INT(b[0]);
-            params[1] = FLOAT_TO_INT(b[1]);
-            params[2] = FLOAT_TO_INT(b[2]);
-            params[3] = FLOAT_TO_INT(b[3]);
-         }
-         break;;
-      case GL_TEXTURE_RESIDENT:
-         {
-            GLboolean resident;
-            if (ctx->Driver.IsTextureResident)
-               resident = ctx->Driver.IsTextureResident(ctx, obj);
-            else
-               resident = GL_TRUE;
-            *params = (GLint) resident;
-         }
-         break;;
-      case GL_TEXTURE_PRIORITY:
-         *params = FLOAT_TO_INT(obj->Priority);
-         break;;
-      case GL_TEXTURE_MIN_LOD:
-         *params = (GLint) obj->MinLod;
-         break;;
-      case GL_TEXTURE_MAX_LOD:
-         *params = (GLint) obj->MaxLod;
-         break;;
-      case GL_TEXTURE_BASE_LEVEL:
-         *params = obj->BaseLevel;
-         break;;
-      case GL_TEXTURE_MAX_LEVEL:
-         *params = obj->MaxLevel;
-         break;;
-      case GL_TEXTURE_MAX_ANISOTROPY_EXT:
-         if (ctx->Extensions.EXT_texture_filter_anisotropic) {
-            *params = (GLint) obj->MaxAnisotropy;
-         }
-         else {
-            error = GL_TRUE;
-         }
-         break;
-      case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
-         if (ctx->Extensions.ARB_shadow_ambient) {
-            *params = (GLint) FLOAT_TO_INT(obj->CompareFailValue);
-         }
-         else {
-            error = GL_TRUE;
-         }
-         break;
-      case GL_GENERATE_MIPMAP_SGIS:
-         if (ctx->Extensions.SGIS_generate_mipmap) {
-            *params = (GLint) obj->GenerateMipmap;
-         }
-         else {
-            error = GL_TRUE;
-         }
-         break;
-      case GL_TEXTURE_COMPARE_MODE_ARB:
-         if (ctx->Extensions.ARB_shadow) {
-            *params = (GLint) obj->CompareMode;
-         }
-         else {
-            error = GL_TRUE;
-         }
-         break;
-      case GL_TEXTURE_COMPARE_FUNC_ARB:
-         if (ctx->Extensions.ARB_shadow) {
-            *params = (GLint) obj->CompareFunc;
-         }
-         else {
-            error = GL_TRUE;
-         }
-         break;
-      case GL_DEPTH_TEXTURE_MODE_ARB:
-         if (ctx->Extensions.ARB_depth_texture) {
-            *params = (GLint) obj->DepthMode;
-         }
-         else {
-            error = GL_TRUE;
-         }
-         break;
-      case GL_TEXTURE_LOD_BIAS:
-         if (ctx->Extensions.EXT_texture_lod_bias) {
-            *params = (GLint) obj->LodBias;
-         }
-         else {
-            error = GL_TRUE;
-         }
-         break;
-#if FEATURE_OES_draw_texture
-      case GL_TEXTURE_CROP_RECT_OES:
-         params[0] = obj->CropRect[0];
-         params[1] = obj->CropRect[1];
-         params[2] = obj->CropRect[2];
-         params[3] = obj->CropRect[3];
-         break;
-#endif
-      case GL_TEXTURE_SWIZZLE_R_EXT:
-      case GL_TEXTURE_SWIZZLE_G_EXT:
-      case GL_TEXTURE_SWIZZLE_B_EXT:
-      case GL_TEXTURE_SWIZZLE_A_EXT:
-         if (ctx->Extensions.EXT_texture_swizzle) {
-            GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT;
-            *params = obj->Swizzle[comp];
-         }
-         else {
-            error = GL_TRUE;
-         }
-         break;
-
-      case GL_TEXTURE_SWIZZLE_RGBA_EXT:
-         if (ctx->Extensions.EXT_texture_swizzle) {
-            COPY_4V(params, obj->Swizzle);
-         }
-         else {
-            error = GL_TRUE;
-         }
-         break;
-
-      default:
-         ; /* silence warnings */
-   }
-
-   if (error)
-      _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname=0x%x)",
-		  pname);
-
-   _mesa_unlock_texture(ctx, obj);
-}
-
-
-/** New in GL 3.0 */
-void GLAPIENTRY
-_mesa_GetTexParameterIiv(GLenum target, GLenum pname, GLint *params)
-{
-   struct gl_texture_object *texObj;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   texObj = get_texobj(ctx, target, GL_TRUE);
-   
-   switch (pname) {
-   case GL_TEXTURE_BORDER_COLOR:
-      COPY_4V(params, texObj->BorderColor.i);
-      break;
-   default:
-      _mesa_GetTexParameteriv(target, pname, params);
-   }
-}
-
-
-/** New in GL 3.0 */
-void GLAPIENTRY
-_mesa_GetTexParameterIuiv(GLenum target, GLenum pname, GLuint *params)
-{
-   struct gl_texture_object *texObj;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   texObj = get_texobj(ctx, target, GL_TRUE);
-   
-   switch (pname) {
-   case GL_TEXTURE_BORDER_COLOR:
-      COPY_4V(params, texObj->BorderColor.i);
-      break;
-   default:
-      {
-         GLint ip[4];
-         _mesa_GetTexParameteriv(target, pname, ip);
-         params[0] = ip[0];
-         if (pname == GL_TEXTURE_SWIZZLE_RGBA_EXT || 
-             pname == GL_TEXTURE_CROP_RECT_OES) {
-            params[1] = ip[1];
-            params[2] = ip[2];
-            params[3] = ip[3];
-         }
-      }
-   }
-}
+/*

+ * Mesa 3-D graphics library

+ * Version:  7.5

+ *

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

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

+ *

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

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

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

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

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

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

+ *

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

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

+ *

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

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

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

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

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

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

+ */

+

+/** 

+ * \file texparam.c

+ *

+ * glTexParameter-related functions

+ */

+

+

+#include "main/glheader.h"

+#include "main/colormac.h"

+#include "main/context.h"

+#include "main/formats.h"

+#include "main/macros.h"

+#include "main/texcompress.h"

+#include "main/texparam.h"

+#include "main/teximage.h"

+#include "main/texstate.h"

+#include "program/prog_instruction.h"

+

+

+/**

+ * Check if a coordinate wrap mode is supported for the texture target.

+ * \return GL_TRUE if legal, GL_FALSE otherwise

+ */

+static GLboolean 

+validate_texture_wrap_mode(struct gl_context * ctx, GLenum target, GLenum wrap)

+{

+   const struct gl_extensions * const e = & ctx->Extensions;

+

+   if (wrap == GL_CLAMP || wrap == GL_CLAMP_TO_EDGE ||

+       (wrap == GL_CLAMP_TO_BORDER && e->ARB_texture_border_clamp)) {

+      /* any texture target */

+      return GL_TRUE;

+   }

+   else if (target != GL_TEXTURE_RECTANGLE_NV &&

+	    (wrap == GL_REPEAT ||

+	     (wrap == GL_MIRRORED_REPEAT &&

+	      e->ARB_texture_mirrored_repeat) ||

+	     (wrap == GL_MIRROR_CLAMP_EXT &&

+	      (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) ||

+	     (wrap == GL_MIRROR_CLAMP_TO_EDGE_EXT &&

+	      (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) ||

+	     (wrap == GL_MIRROR_CLAMP_TO_BORDER_EXT &&

+	      (e->EXT_texture_mirror_clamp)))) {

+      /* non-rectangle texture */

+      return GL_TRUE;

+   }

+

+   _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)", wrap );

+   return GL_FALSE;

+}

+

+

+/**

+ * Get current texture object for given target.

+ * Return NULL if any error (and record the error).

+ * Note that this is different from _mesa_select_tex_object() in that proxy

+ * targets are not accepted.

+ * Only the glGetTexLevelParameter() functions accept proxy targets.

+ */

+static struct gl_texture_object *

+get_texobj(struct gl_context *ctx, GLenum target, GLboolean get)

+{

+   struct gl_texture_unit *texUnit;

+

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

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "gl%sTexParameter(current unit)", get ? "Get" : "");

+      return NULL;

+   }

+

+   texUnit = _mesa_get_current_tex_unit(ctx);

+

+   switch (target) {

+   case GL_TEXTURE_1D:

+      return texUnit->CurrentTex[TEXTURE_1D_INDEX];

+   case GL_TEXTURE_2D:

+      return texUnit->CurrentTex[TEXTURE_2D_INDEX];

+   case GL_TEXTURE_3D:

+      return texUnit->CurrentTex[TEXTURE_3D_INDEX];

+   case GL_TEXTURE_CUBE_MAP:

+      if (ctx->Extensions.ARB_texture_cube_map) {

+         return texUnit->CurrentTex[TEXTURE_CUBE_INDEX];

+      }

+      break;

+   case GL_TEXTURE_RECTANGLE_NV:

+      if (ctx->Extensions.NV_texture_rectangle) {

+         return texUnit->CurrentTex[TEXTURE_RECT_INDEX];

+      }

+      break;

+   case GL_TEXTURE_1D_ARRAY_EXT:

+      if (ctx->Extensions.MESA_texture_array) {

+         return texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX];

+      }

+      break;

+   case GL_TEXTURE_2D_ARRAY_EXT:

+      if (ctx->Extensions.MESA_texture_array) {

+         return texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX];

+      }

+      break;

+   default:

+      ;

+   }

+

+   _mesa_error(ctx, GL_INVALID_ENUM,

+                  "gl%sTexParameter(target)", get ? "Get" : "");

+   return NULL;

+}

+

+

+/**

+ * Convert GL_RED/GREEN/BLUE/ALPHA/ZERO/ONE to SWIZZLE_X/Y/Z/W/ZERO/ONE.

+ * \return -1 if error.

+ */

+static GLint

+comp_to_swizzle(GLenum comp)

+{

+   switch (comp) {

+   case GL_RED:

+      return SWIZZLE_X;

+   case GL_GREEN:

+      return SWIZZLE_Y;

+   case GL_BLUE:

+      return SWIZZLE_Z;

+   case GL_ALPHA:

+      return SWIZZLE_W;

+   case GL_ZERO:

+      return SWIZZLE_ZERO;

+   case GL_ONE:

+      return SWIZZLE_ONE;

+   default:

+      return -1;

+   }

+}

+

+

+static void

+set_swizzle_component(GLuint *swizzle, GLuint comp, GLuint swz)

+{

+   ASSERT(comp < 4);

+   ASSERT(swz <= SWIZZLE_NIL);

+   {

+      GLuint mask = 0x7 << (3 * comp);

+      GLuint s = (*swizzle & ~mask) | (swz << (3 * comp));

+      *swizzle = s;

+   }

+}

+

+

+/**

+ * This is called just prior to changing any texture object state.

+ * Any pending rendering will be flushed out, we'll set the _NEW_TEXTURE

+ * state flag and then mark the texture object as 'incomplete' so that any

+ * per-texture derived state gets recomputed.

+ */

+static INLINE void

+flush(struct gl_context *ctx, struct gl_texture_object *texObj)

+{

+   FLUSH_VERTICES(ctx, _NEW_TEXTURE);

+   texObj->_Complete = GL_FALSE;

+}

+

+

+/**

+ * Set an integer-valued texture parameter

+ * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise

+ */

+static GLboolean

+set_tex_parameteri(struct gl_context *ctx,

+                   struct gl_texture_object *texObj,

+                   GLenum pname, const GLint *params)

+{

+   switch (pname) {

+   case GL_TEXTURE_MIN_FILTER:

+      if (texObj->MinFilter == params[0])

+         return GL_FALSE;

+      switch (params[0]) {

+      case GL_NEAREST:

+      case GL_LINEAR:

+         flush(ctx, texObj);

+         texObj->MinFilter = params[0];

+         return GL_TRUE;

+      case GL_NEAREST_MIPMAP_NEAREST:

+      case GL_LINEAR_MIPMAP_NEAREST:

+      case GL_NEAREST_MIPMAP_LINEAR:

+      case GL_LINEAR_MIPMAP_LINEAR:

+         if (texObj->Target != GL_TEXTURE_RECTANGLE_NV) {

+            flush(ctx, texObj);

+            texObj->MinFilter = params[0];

+            return GL_TRUE;

+         }

+         /* fall-through */

+      default:

+         _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)",

+                      params[0] );

+      }

+      return GL_FALSE;

+

+   case GL_TEXTURE_MAG_FILTER:

+      if (texObj->MagFilter == params[0])

+         return GL_FALSE;

+      switch (params[0]) {

+      case GL_NEAREST:

+      case GL_LINEAR:

+         flush(ctx, texObj);

+         texObj->MagFilter = params[0];

+         return GL_TRUE;

+      default:

+         _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)",

+                      params[0]);

+      }

+      return GL_FALSE;

+

+   case GL_TEXTURE_WRAP_S:

+      if (texObj->WrapS == params[0])

+         return GL_FALSE;

+      if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {

+         flush(ctx, texObj);

+         texObj->WrapS = params[0];

+         return GL_TRUE;

+      }

+      return GL_FALSE;

+

+   case GL_TEXTURE_WRAP_T:

+      if (texObj->WrapT == params[0])

+         return GL_FALSE;

+      if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {

+         flush(ctx, texObj);

+         texObj->WrapT = params[0];

+         return GL_TRUE;

+      }

+      return GL_FALSE;

+

+   case GL_TEXTURE_WRAP_R:

+      if (texObj->WrapR == params[0])

+         return GL_FALSE;

+      if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {

+         flush(ctx, texObj);

+         texObj->WrapR = params[0];

+         return GL_TRUE;

+      }

+      return GL_FALSE;

+

+   case GL_TEXTURE_BASE_LEVEL:

+      if (texObj->BaseLevel == params[0])

+         return GL_FALSE;

+      if (params[0] < 0 ||

+          (texObj->Target == GL_TEXTURE_RECTANGLE_ARB && params[0] != 0)) {

+         _mesa_error(ctx, GL_INVALID_VALUE,

+                     "glTexParameter(param=%d)", params[0]);

+         return GL_FALSE;

+      }

+      flush(ctx, texObj);

+      texObj->BaseLevel = params[0];

+      return GL_TRUE;

+

+   case GL_TEXTURE_MAX_LEVEL:

+      if (texObj->MaxLevel == params[0])

+         return GL_FALSE;

+      if (params[0] < 0 || texObj->Target == GL_TEXTURE_RECTANGLE_ARB) {

+         _mesa_error(ctx, GL_INVALID_OPERATION,

+                     "glTexParameter(param=%d)", params[0]);

+         return GL_FALSE;

+      }

+      flush(ctx, texObj);

+      texObj->MaxLevel = params[0];

+      return GL_TRUE;

+

+   case GL_GENERATE_MIPMAP_SGIS:

+      if (texObj->GenerateMipmap != params[0]) {

+	 flush(ctx, texObj);

+	 texObj->GenerateMipmap = params[0] ? GL_TRUE : GL_FALSE;

+	 return GL_TRUE;

+      }

+      return GL_FALSE;

+

+   case GL_TEXTURE_COMPARE_MODE_ARB:

+      if (ctx->Extensions.ARB_shadow &&

+          (params[0] == GL_NONE ||

+           params[0] == GL_COMPARE_R_TO_TEXTURE_ARB)) {

+         if (texObj->CompareMode != params[0]) {

+            flush(ctx, texObj);

+            texObj->CompareMode = params[0];

+            return GL_TRUE;

+         }

+         return GL_FALSE;

+      }

+      else {

+         _mesa_error(ctx, GL_INVALID_ENUM,

+                     "glTexParameter(GL_TEXTURE_COMPARE_MODE_ARB)");

+      }

+      return GL_FALSE;

+

+   case GL_TEXTURE_COMPARE_FUNC_ARB:

+      if (ctx->Extensions.ARB_shadow) {

+         if (texObj->CompareFunc == params[0])

+            return GL_FALSE;

+         switch (params[0]) {

+         case GL_LEQUAL:

+         case GL_GEQUAL:

+            flush(ctx, texObj);

+            texObj->CompareFunc = params[0];

+            return GL_TRUE;

+         case GL_EQUAL:

+         case GL_NOTEQUAL:

+         case GL_LESS:

+         case GL_GREATER:

+         case GL_ALWAYS:

+         case GL_NEVER:

+            if (ctx->Extensions.EXT_shadow_funcs) {

+               flush(ctx, texObj);

+               texObj->CompareFunc = params[0];

+               return GL_TRUE;

+            }

+            /* fall-through */

+         default:

+            _mesa_error(ctx, GL_INVALID_ENUM,

+                        "glTexParameter(GL_TEXTURE_COMPARE_FUNC_ARB)");

+         }

+      }

+      else {

+         _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);

+      }

+      return GL_FALSE;

+

+   case GL_DEPTH_TEXTURE_MODE_ARB:

+      if (ctx->Extensions.ARB_depth_texture &&

+          (params[0] == GL_LUMINANCE ||

+           params[0] == GL_INTENSITY ||

+           params[0] == GL_ALPHA ||

+	   (ctx->Extensions.ARB_texture_rg && params[0] == GL_RED))) {

+         if (texObj->DepthMode != params[0]) {

+            flush(ctx, texObj);

+            texObj->DepthMode = params[0];

+            return GL_TRUE;

+         }

+      }

+      else {

+         _mesa_error(ctx, GL_INVALID_ENUM,

+                     "glTexParameter(GL_DEPTH_TEXTURE_MODE_ARB)");

+      }

+      return GL_FALSE;

+

+#if FEATURE_OES_draw_texture

+   case GL_TEXTURE_CROP_RECT_OES:

+      texObj->CropRect[0] = params[0];

+      texObj->CropRect[1] = params[1];

+      texObj->CropRect[2] = params[2];

+      texObj->CropRect[3] = params[3];

+      return GL_TRUE;

+#endif

+

+   case GL_TEXTURE_SWIZZLE_R_EXT:

+   case GL_TEXTURE_SWIZZLE_G_EXT:

+   case GL_TEXTURE_SWIZZLE_B_EXT:

+   case GL_TEXTURE_SWIZZLE_A_EXT:

+      if (ctx->Extensions.EXT_texture_swizzle) {

+         const GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT;

+         const GLint swz = comp_to_swizzle(params[0]);

+         if (swz < 0) {

+            _mesa_error(ctx, GL_INVALID_OPERATION,

+                        "glTexParameter(swizzle 0x%x)", params[0]);

+            return GL_FALSE;

+         }

+         ASSERT(comp < 4);

+         if (swz >= 0) {

+            flush(ctx, texObj);

+            texObj->Swizzle[comp] = params[0];

+            set_swizzle_component(&texObj->_Swizzle, comp, swz);

+            return GL_TRUE;

+         }

+      }

+      _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);

+      return GL_FALSE;

+

+   case GL_TEXTURE_SWIZZLE_RGBA_EXT:

+      if (ctx->Extensions.EXT_texture_swizzle) {

+         GLuint comp;

+         flush(ctx, texObj);

+         for (comp = 0; comp < 4; comp++) {

+            const GLint swz = comp_to_swizzle(params[comp]);

+            if (swz >= 0) {

+               texObj->Swizzle[comp] = params[comp];

+               set_swizzle_component(&texObj->_Swizzle, comp, swz);

+            }

+            else {

+               _mesa_error(ctx, GL_INVALID_OPERATION,

+                           "glTexParameter(swizzle 0x%x)", params[comp]);

+               return GL_FALSE;

+            }

+         }

+         return GL_TRUE;

+      }

+      _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);

+      return GL_FALSE;

+

+   default:

+      _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);

+   }

+   return GL_FALSE;

+}

+

+

+/**

+ * Set a float-valued texture parameter

+ * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise

+ */

+static GLboolean

+set_tex_parameterf(struct gl_context *ctx,

+                   struct gl_texture_object *texObj,

+                   GLenum pname, const GLfloat *params)

+{

+   switch (pname) {

+   case GL_TEXTURE_MIN_LOD:

+      if (texObj->MinLod == params[0])

+         return GL_FALSE;

+      flush(ctx, texObj);

+      texObj->MinLod = params[0];

+      return GL_TRUE;

+

+   case GL_TEXTURE_MAX_LOD:

+      if (texObj->MaxLod == params[0])

+         return GL_FALSE;

+      flush(ctx, texObj);

+      texObj->MaxLod = params[0];

+      return GL_TRUE;

+

+   case GL_TEXTURE_PRIORITY:

+      flush(ctx, texObj);

+      texObj->Priority = CLAMP(params[0], 0.0F, 1.0F);

+      return GL_TRUE;

+

+   case GL_TEXTURE_MAX_ANISOTROPY_EXT:

+      if (ctx->Extensions.EXT_texture_filter_anisotropic) {

+         if (texObj->MaxAnisotropy == params[0])

+            return GL_FALSE;

+         if (params[0] < 1.0) {

+            _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" );

+            return GL_FALSE;

+         }

+         flush(ctx, texObj);

+         /* clamp to max, that's what NVIDIA does */

+         texObj->MaxAnisotropy = MIN2(params[0],

+                                      ctx->Const.MaxTextureMaxAnisotropy);

+         return GL_TRUE;

+      }

+      else {

+         static GLuint count = 0;

+         if (count++ < 10)

+            _mesa_error(ctx, GL_INVALID_ENUM,

+                        "glTexParameter(pname=GL_TEXTURE_MAX_ANISOTROPY_EXT)");

+      }

+      return GL_FALSE;

+

+   case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:

+      if (ctx->Extensions.ARB_shadow_ambient) {

+         if (texObj->CompareFailValue != params[0]) {

+            flush(ctx, texObj);

+            texObj->CompareFailValue = CLAMP(params[0], 0.0F, 1.0F);

+            return GL_TRUE;

+         }

+      }

+      else {

+         _mesa_error(ctx, GL_INVALID_ENUM,

+                    "glTexParameter(pname=GL_TEXTURE_COMPARE_FAIL_VALUE_ARB)");

+      }

+      return GL_FALSE;

+

+   case GL_TEXTURE_LOD_BIAS:

+      /* NOTE: this is really part of OpenGL 1.4, not EXT_texture_lod_bias */

+      if (ctx->Extensions.EXT_texture_lod_bias) {

+         if (texObj->LodBias != params[0]) {

+            flush(ctx, texObj);

+            texObj->LodBias = params[0];

+            return GL_TRUE;

+         }

+         return GL_FALSE;

+      }

+      break;

+

+   case GL_TEXTURE_BORDER_COLOR:

+      flush(ctx, texObj);

+      texObj->BorderColor.f[RCOMP] = params[0];

+      texObj->BorderColor.f[GCOMP] = params[1];

+      texObj->BorderColor.f[BCOMP] = params[2];

+      texObj->BorderColor.f[ACOMP] = params[3];

+      return GL_TRUE;

+

+   default:

+      _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);

+   }

+   return GL_FALSE;

+}

+

+

+void GLAPIENTRY

+_mesa_TexParameterf(GLenum target, GLenum pname, GLfloat param)

+{

+   GLboolean need_update;

+   struct gl_texture_object *texObj;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   texObj = get_texobj(ctx, target, GL_FALSE);

+   if (!texObj)

+      return;

+

+   switch (pname) {

+   case GL_TEXTURE_MIN_FILTER:

+   case GL_TEXTURE_MAG_FILTER:

+   case GL_TEXTURE_WRAP_S:

+   case GL_TEXTURE_WRAP_T:

+   case GL_TEXTURE_WRAP_R:

+   case GL_TEXTURE_BASE_LEVEL:

+   case GL_TEXTURE_MAX_LEVEL:

+   case GL_GENERATE_MIPMAP_SGIS:

+   case GL_TEXTURE_COMPARE_MODE_ARB:

+   case GL_TEXTURE_COMPARE_FUNC_ARB:

+   case GL_DEPTH_TEXTURE_MODE_ARB:

+      {

+         /* convert float param to int */

+         GLint p[4];

+         p[0] = (GLint) param;

+         p[1] = p[2] = p[3] = 0;

+         need_update = set_tex_parameteri(ctx, texObj, pname, p);

+      }

+      break;

+   default:

+      {

+         /* this will generate an error if pname is illegal */

+         GLfloat p[4];

+         p[0] = param;

+         p[1] = p[2] = p[3] = 0.0F;

+         need_update = set_tex_parameterf(ctx, texObj, pname, p);

+      }

+   }

+

+   if (ctx->Driver.TexParameter && need_update) {

+      ctx->Driver.TexParameter(ctx, target, texObj, pname, &param);

+   }

+}

+

+

+void GLAPIENTRY

+_mesa_TexParameterfv(GLenum target, GLenum pname, const GLfloat *params)

+{

+   GLboolean need_update;

+   struct gl_texture_object *texObj;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   texObj = get_texobj(ctx, target, GL_FALSE);

+   if (!texObj)

+      return;

+

+   switch (pname) {

+   case GL_TEXTURE_MIN_FILTER:

+   case GL_TEXTURE_MAG_FILTER:

+   case GL_TEXTURE_WRAP_S:

+   case GL_TEXTURE_WRAP_T:

+   case GL_TEXTURE_WRAP_R:

+   case GL_TEXTURE_BASE_LEVEL:

+   case GL_TEXTURE_MAX_LEVEL:

+   case GL_GENERATE_MIPMAP_SGIS:

+   case GL_TEXTURE_COMPARE_MODE_ARB:

+   case GL_TEXTURE_COMPARE_FUNC_ARB:

+   case GL_DEPTH_TEXTURE_MODE_ARB:

+      {

+         /* convert float param to int */

+         GLint p[4];

+         p[0] = (GLint) params[0];

+         p[1] = p[2] = p[3] = 0;

+         need_update = set_tex_parameteri(ctx, texObj, pname, p);

+      }

+      break;

+

+#if FEATURE_OES_draw_texture

+   case GL_TEXTURE_CROP_RECT_OES:

+      {

+         /* convert float params to int */

+         GLint iparams[4];

+         iparams[0] = (GLint) params[0];

+         iparams[1] = (GLint) params[1];

+         iparams[2] = (GLint) params[2];

+         iparams[3] = (GLint) params[3];

+         need_update = set_tex_parameteri(ctx, texObj, pname, iparams);

+      }

+      break;

+#endif

+

+   default:

+      /* this will generate an error if pname is illegal */

+      need_update = set_tex_parameterf(ctx, texObj, pname, params);

+   }

+

+   if (ctx->Driver.TexParameter && need_update) {

+      ctx->Driver.TexParameter(ctx, target, texObj, pname, params);

+   }

+}

+

+

+void GLAPIENTRY

+_mesa_TexParameteri(GLenum target, GLenum pname, GLint param)

+{

+   GLboolean need_update;

+   struct gl_texture_object *texObj;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   texObj = get_texobj(ctx, target, GL_FALSE);

+   if (!texObj)

+      return;

+

+   switch (pname) {

+   case GL_TEXTURE_MIN_LOD:

+   case GL_TEXTURE_MAX_LOD:

+   case GL_TEXTURE_PRIORITY:

+   case GL_TEXTURE_MAX_ANISOTROPY_EXT:

+   case GL_TEXTURE_LOD_BIAS:

+   case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:

+      {

+         GLfloat fparam[4];

+         fparam[0] = (GLfloat) param;

+         fparam[1] = fparam[2] = fparam[3] = 0.0F;

+         /* convert int param to float */

+         need_update = set_tex_parameterf(ctx, texObj, pname, fparam);

+      }

+      break;

+   default:

+      /* this will generate an error if pname is illegal */

+      {

+         GLint iparam[4];

+         iparam[0] = param;

+         iparam[1] = iparam[2] = iparam[3] = 0;

+         need_update = set_tex_parameteri(ctx, texObj, pname, iparam);

+      }

+   }

+

+   if (ctx->Driver.TexParameter && need_update) {

+      GLfloat fparam = (GLfloat) param;

+      ctx->Driver.TexParameter(ctx, target, texObj, pname, &fparam);

+   }

+}

+

+

+void GLAPIENTRY

+_mesa_TexParameteriv(GLenum target, GLenum pname, const GLint *params)

+{

+   GLboolean need_update;

+   struct gl_texture_object *texObj;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   texObj = get_texobj(ctx, target, GL_FALSE);

+   if (!texObj)

+      return;

+

+   switch (pname) {

+   case GL_TEXTURE_BORDER_COLOR:

+      {

+         /* convert int params to float */

+         GLfloat fparams[4];

+         fparams[0] = INT_TO_FLOAT(params[0]);

+         fparams[1] = INT_TO_FLOAT(params[1]);

+         fparams[2] = INT_TO_FLOAT(params[2]);

+         fparams[3] = INT_TO_FLOAT(params[3]);

+         need_update = set_tex_parameterf(ctx, texObj, pname, fparams);

+      }

+      break;

+   case GL_TEXTURE_MIN_LOD:

+   case GL_TEXTURE_MAX_LOD:

+   case GL_TEXTURE_PRIORITY:

+   case GL_TEXTURE_MAX_ANISOTROPY_EXT:

+   case GL_TEXTURE_LOD_BIAS:

+   case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:

+      {

+         /* convert int param to float */

+         GLfloat fparams[4];

+         fparams[0] = (GLfloat) params[0];

+         fparams[1] = fparams[2] = fparams[3] = 0.0F;

+         need_update = set_tex_parameterf(ctx, texObj, pname, fparams);

+      }

+      break;

+   default:

+      /* this will generate an error if pname is illegal */

+      need_update = set_tex_parameteri(ctx, texObj, pname, params);

+   }

+

+   if (ctx->Driver.TexParameter && need_update) {

+      GLfloat fparams[4];

+      fparams[0] = INT_TO_FLOAT(params[0]);

+      if (pname == GL_TEXTURE_BORDER_COLOR ||

+          pname == GL_TEXTURE_CROP_RECT_OES) {

+         fparams[1] = INT_TO_FLOAT(params[1]);

+         fparams[2] = INT_TO_FLOAT(params[2]);

+         fparams[3] = INT_TO_FLOAT(params[3]);

+      }

+      ctx->Driver.TexParameter(ctx, target, texObj, pname, fparams);

+   }

+}

+

+

+/**

+ * Set tex parameter to integer value(s).  Primarily intended to set

+ * integer-valued texture border color (for integer-valued textures).

+ * New in GL 3.0.

+ */

+void GLAPIENTRY

+_mesa_TexParameterIiv(GLenum target, GLenum pname, const GLint *params)

+{

+   struct gl_texture_object *texObj;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   texObj = get_texobj(ctx, target, GL_FALSE);

+   if (!texObj)

+      return;

+

+   switch (pname) {

+   case GL_TEXTURE_BORDER_COLOR:

+      FLUSH_VERTICES(ctx, _NEW_TEXTURE);

+      /* set the integer-valued border color */

+      COPY_4V(texObj->BorderColor.i, params);

+      break;

+   default:

+      _mesa_TexParameteriv(target, pname, params);

+      break;

+   }

+   /* XXX no driver hook for TexParameterIiv() yet */

+}

+

+

+/**

+ * Set tex parameter to unsigned integer value(s).  Primarily intended to set

+ * uint-valued texture border color (for integer-valued textures).

+ * New in GL 3.0

+ */

+void GLAPIENTRY

+_mesa_TexParameterIuiv(GLenum target, GLenum pname, const GLuint *params)

+{

+   struct gl_texture_object *texObj;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   texObj = get_texobj(ctx, target, GL_FALSE);

+   if (!texObj)

+      return;

+

+   switch (pname) {

+   case GL_TEXTURE_BORDER_COLOR:

+      FLUSH_VERTICES(ctx, _NEW_TEXTURE);

+      /* set the unsigned integer-valued border color */

+      COPY_4V(texObj->BorderColor.ui, params);

+      break;

+   default:

+      _mesa_TexParameteriv(target, pname, (const GLint *) params);

+      break;

+   }

+   /* XXX no driver hook for TexParameterIuiv() yet */

+}

+

+

+

+

+void GLAPIENTRY

+_mesa_GetTexLevelParameterfv( GLenum target, GLint level,

+                              GLenum pname, GLfloat *params )

+{

+   GLint iparam;

+   _mesa_GetTexLevelParameteriv( target, level, pname, &iparam );

+   *params = (GLfloat) iparam;

+}

+

+

+void GLAPIENTRY

+_mesa_GetTexLevelParameteriv( GLenum target, GLint level,

+                              GLenum pname, GLint *params )

+{

+   const struct gl_texture_unit *texUnit;

+   struct gl_texture_object *texObj;

+   const struct gl_texture_image *img = NULL;

+   GLboolean isProxy;

+   GLint maxLevels;

+   gl_format texFormat;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

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

+      _mesa_error(ctx, GL_INVALID_OPERATION,

+                  "glGetTexLevelParameteriv(current unit)");

+      return;

+   }

+

+   texUnit = _mesa_get_current_tex_unit(ctx);

+

+   /* this will catch bad target values */

+   maxLevels = _mesa_max_texture_levels(ctx, target);

+   if (maxLevels == 0) {

+      _mesa_error(ctx, GL_INVALID_ENUM,

+                  "glGetTexLevelParameter[if]v(target=0x%x)", target);

+      return;

+   }

+

+   if (level < 0 || level >= maxLevels) {

+      _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexLevelParameter[if]v" );

+      return;

+   }

+

+   texObj = _mesa_select_tex_object(ctx, texUnit, target);

+   _mesa_lock_texture(ctx, texObj);

+

+   img = _mesa_select_tex_image(ctx, texObj, target, level);

+   if (!img || !img->TexFormat) {

+      /* undefined texture image */

+      if (pname == GL_TEXTURE_COMPONENTS)

+         *params = 1;

+      else

+         *params = 0;

+      goto out;

+   }

+

+   texFormat = img->TexFormat;

+

+   isProxy = _mesa_is_proxy_texture(target);

+

+   switch (pname) {

+      case GL_TEXTURE_WIDTH:

+         *params = img->Width;

+         break;

+      case GL_TEXTURE_HEIGHT:

+         *params = img->Height;

+         break;

+      case GL_TEXTURE_DEPTH:

+         *params = img->Depth;

+         break;

+      case GL_TEXTURE_INTERNAL_FORMAT:

+         if (_mesa_is_format_compressed(img->TexFormat)) {

+            /* need to return the actual compressed format */

+            *params = _mesa_compressed_format_to_glenum(ctx, img->TexFormat);

+         }

+         else {

+            /* return the user's requested internal format */

+            *params = img->InternalFormat;

+         }

+         break;

+      case GL_TEXTURE_BORDER:

+         *params = img->Border;

+         break;

+      case GL_TEXTURE_RED_SIZE:

+         if (img->_BaseFormat == GL_RED) {

+            *params = _mesa_get_format_bits(texFormat, pname);

+	    break;

+	 }

+	 /* FALLTHROUGH */

+      case GL_TEXTURE_GREEN_SIZE:

+         if (img->_BaseFormat == GL_RG) {

+            *params = _mesa_get_format_bits(texFormat, pname);

+	    break;

+	 }

+	 /* FALLTHROUGH */

+      case GL_TEXTURE_BLUE_SIZE:

+         if (img->_BaseFormat == GL_RGB || img->_BaseFormat == GL_RGBA)

+            *params = _mesa_get_format_bits(texFormat, pname);

+         else

+            *params = 0;

+         break;

+      case GL_TEXTURE_ALPHA_SIZE:

+         if (img->_BaseFormat == GL_ALPHA ||

+             img->_BaseFormat == GL_LUMINANCE_ALPHA ||

+             img->_BaseFormat == GL_RGBA)

+            *params = _mesa_get_format_bits(texFormat, pname);

+         else

+            *params = 0;

+         break;

+      case GL_TEXTURE_INTENSITY_SIZE:

+         if (img->_BaseFormat != GL_INTENSITY)

+            *params = 0;

+         else {

+            *params = _mesa_get_format_bits(texFormat, pname);

+            if (*params == 0) {

+               /* intensity probably stored as rgb texture */

+               *params = MIN2(_mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE),

+                              _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE));

+            }

+         }

+         break;

+      case GL_TEXTURE_LUMINANCE_SIZE:

+         if (img->_BaseFormat != GL_LUMINANCE &&

+             img->_BaseFormat != GL_LUMINANCE_ALPHA)

+            *params = 0;

+         else {

+            *params = _mesa_get_format_bits(texFormat, pname);

+            if (*params == 0) {

+               /* luminance probably stored as rgb texture */

+               *params = MIN2(_mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE),

+                              _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE));

+            }

+         }

+         break;

+      case GL_TEXTURE_INDEX_SIZE_EXT:

+         if (img->_BaseFormat == GL_COLOR_INDEX)

+            *params = _mesa_get_format_bits(texFormat, pname);

+         else

+            *params = 0;

+         break;

+      case GL_TEXTURE_DEPTH_SIZE_ARB:

+         if (ctx->Extensions.ARB_depth_texture)

+            *params = _mesa_get_format_bits(texFormat, pname);

+         else

+            _mesa_error(ctx, GL_INVALID_ENUM,

+                        "glGetTexLevelParameter[if]v(pname)");

+         break;

+      case GL_TEXTURE_STENCIL_SIZE_EXT:

+         if (ctx->Extensions.EXT_packed_depth_stencil ||

+             ctx->Extensions.ARB_framebuffer_object) {

+            *params = _mesa_get_format_bits(texFormat, pname);

+         }

+         else {

+            _mesa_error(ctx, GL_INVALID_ENUM,

+                        "glGetTexLevelParameter[if]v(pname)");

+         }

+         break;

+      case GL_TEXTURE_SHARED_SIZE:

+         if (ctx->VersionMajor >= 3) {

+            /* XXX return number of exponent bits for shared exponent texture

+             * formats, like GL_RGB9_E5.

+             */

+            *params = 0;

+         }

+         else {

+            _mesa_error(ctx, GL_INVALID_ENUM,

+                        "glGetTexLevelParameter[if]v(pname)");

+         }

+         break;

+

+      /* GL_ARB_texture_compression */

+      case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:

+	 if (_mesa_is_format_compressed(img->TexFormat) && !isProxy) {

+            *params = _mesa_format_image_size(texFormat, img->Width,

+                                              img->Height, img->Depth);

+	 }

+	 else {

+	    _mesa_error(ctx, GL_INVALID_OPERATION,

+			"glGetTexLevelParameter[if]v(pname)");

+	 }

+         break;

+      case GL_TEXTURE_COMPRESSED:

+         *params = (GLint) _mesa_is_format_compressed(img->TexFormat);

+         break;

+

+      /* GL_ARB_texture_float */

+      case GL_TEXTURE_RED_TYPE_ARB:

+         if (ctx->Extensions.ARB_texture_float) {

+            *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE) ?

+               _mesa_get_format_datatype(texFormat) : GL_NONE;

+         }

+         else {

+            _mesa_error(ctx, GL_INVALID_ENUM,

+                        "glGetTexLevelParameter[if]v(pname)");

+         }

+         break;

+      case GL_TEXTURE_GREEN_TYPE_ARB:

+         if (ctx->Extensions.ARB_texture_float) {

+            *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE) ?

+               _mesa_get_format_datatype(texFormat) : GL_NONE;

+         }

+         else {

+            _mesa_error(ctx, GL_INVALID_ENUM,

+                        "glGetTexLevelParameter[if]v(pname)");

+         }

+         break;

+      case GL_TEXTURE_BLUE_TYPE_ARB:

+         if (ctx->Extensions.ARB_texture_float) {

+            *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_BLUE_SIZE) ?

+               _mesa_get_format_datatype(texFormat) : GL_NONE;

+         }

+         else {

+            _mesa_error(ctx, GL_INVALID_ENUM,

+                        "glGetTexLevelParameter[if]v(pname)");

+         }

+         break;

+      case GL_TEXTURE_ALPHA_TYPE_ARB:

+         if (ctx->Extensions.ARB_texture_float) {

+            *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_ALPHA_SIZE) ?

+               _mesa_get_format_datatype(texFormat) : GL_NONE;

+         }

+         else {

+            _mesa_error(ctx, GL_INVALID_ENUM,

+                        "glGetTexLevelParameter[if]v(pname)");

+         }

+         break;

+      case GL_TEXTURE_LUMINANCE_TYPE_ARB:

+         if (ctx->Extensions.ARB_texture_float) {

+            *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_LUMINANCE_SIZE) ?

+               _mesa_get_format_datatype(texFormat) : GL_NONE;

+         }

+         else {

+            _mesa_error(ctx, GL_INVALID_ENUM,

+                        "glGetTexLevelParameter[if]v(pname)");

+         }

+         break;

+      case GL_TEXTURE_INTENSITY_TYPE_ARB:

+         if (ctx->Extensions.ARB_texture_float) {

+            *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_INTENSITY_SIZE) ?

+               _mesa_get_format_datatype(texFormat) : GL_NONE;

+         }

+         else {

+            _mesa_error(ctx, GL_INVALID_ENUM,

+                        "glGetTexLevelParameter[if]v(pname)");

+         }

+         break;

+      case GL_TEXTURE_DEPTH_TYPE_ARB:

+         if (ctx->Extensions.ARB_texture_float) {

+            *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_DEPTH_SIZE) ?

+               _mesa_get_format_datatype(texFormat) : GL_NONE;

+         }

+         else {

+            _mesa_error(ctx, GL_INVALID_ENUM,

+                        "glGetTexLevelParameter[if]v(pname)");

+         }

+         break;

+

+      default:

+         _mesa_error(ctx, GL_INVALID_ENUM,

+                     "glGetTexLevelParameter[if]v(pname)");

+   }

+

+ out:

+   _mesa_unlock_texture(ctx, texObj);

+}

+

+

+

+void GLAPIENTRY

+_mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params )

+{

+   struct gl_texture_object *obj;

+   GLboolean error = GL_FALSE;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   obj = get_texobj(ctx, target, GL_TRUE);

+   if (!obj)

+      return;

+

+   _mesa_lock_texture(ctx, obj);

+   switch (pname) {

+      case GL_TEXTURE_MAG_FILTER:

+	 *params = ENUM_TO_FLOAT(obj->MagFilter);

+	 break;

+      case GL_TEXTURE_MIN_FILTER:

+         *params = ENUM_TO_FLOAT(obj->MinFilter);

+         break;

+      case GL_TEXTURE_WRAP_S:

+         *params = ENUM_TO_FLOAT(obj->WrapS);

+         break;

+      case GL_TEXTURE_WRAP_T:

+         *params = ENUM_TO_FLOAT(obj->WrapT);

+         break;

+      case GL_TEXTURE_WRAP_R:

+         *params = ENUM_TO_FLOAT(obj->WrapR);

+         break;

+      case GL_TEXTURE_BORDER_COLOR:

+         params[0] = CLAMP(obj->BorderColor.f[0], 0.0F, 1.0F);

+         params[1] = CLAMP(obj->BorderColor.f[1], 0.0F, 1.0F);

+         params[2] = CLAMP(obj->BorderColor.f[2], 0.0F, 1.0F);

+         params[3] = CLAMP(obj->BorderColor.f[3], 0.0F, 1.0F);

+         break;

+      case GL_TEXTURE_RESIDENT:

+         {

+            GLboolean resident;

+            if (ctx->Driver.IsTextureResident)

+               resident = ctx->Driver.IsTextureResident(ctx, obj);

+            else

+               resident = GL_TRUE;

+            *params = ENUM_TO_FLOAT(resident);

+         }

+         break;

+      case GL_TEXTURE_PRIORITY:

+         *params = obj->Priority;

+         break;

+      case GL_TEXTURE_MIN_LOD:

+         *params = obj->MinLod;

+         break;

+      case GL_TEXTURE_MAX_LOD:

+         *params = obj->MaxLod;

+         break;

+      case GL_TEXTURE_BASE_LEVEL:

+         *params = (GLfloat) obj->BaseLevel;

+         break;

+      case GL_TEXTURE_MAX_LEVEL:

+         *params = (GLfloat) obj->MaxLevel;

+         break;

+      case GL_TEXTURE_MAX_ANISOTROPY_EXT:

+         if (ctx->Extensions.EXT_texture_filter_anisotropic) {

+            *params = obj->MaxAnisotropy;

+         }

+	 else

+	    error = GL_TRUE;

+         break;

+      case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:

+         if (ctx->Extensions.ARB_shadow_ambient) {

+            *params = obj->CompareFailValue;

+         }

+	 else 

+	    error = GL_TRUE;

+         break;

+      case GL_GENERATE_MIPMAP_SGIS:

+	 *params = (GLfloat) obj->GenerateMipmap;

+         break;

+      case GL_TEXTURE_COMPARE_MODE_ARB:

+         if (ctx->Extensions.ARB_shadow) {

+            *params = (GLfloat) obj->CompareMode;

+         }

+	 else 

+	    error = GL_TRUE;

+         break;

+      case GL_TEXTURE_COMPARE_FUNC_ARB:

+         if (ctx->Extensions.ARB_shadow) {

+            *params = (GLfloat) obj->CompareFunc;

+         }

+	 else 

+	    error = GL_TRUE;

+         break;

+      case GL_DEPTH_TEXTURE_MODE_ARB:

+         if (ctx->Extensions.ARB_depth_texture) {

+            *params = (GLfloat) obj->DepthMode;

+         }

+	 else 

+	    error = GL_TRUE;

+         break;

+      case GL_TEXTURE_LOD_BIAS:

+         if (ctx->Extensions.EXT_texture_lod_bias) {

+            *params = obj->LodBias;

+         }

+	 else 

+	    error = GL_TRUE;

+         break;

+#if FEATURE_OES_draw_texture

+      case GL_TEXTURE_CROP_RECT_OES:

+         params[0] = obj->CropRect[0];

+         params[1] = obj->CropRect[1];

+         params[2] = obj->CropRect[2];

+         params[3] = obj->CropRect[3];

+         break;

+#endif

+

+      case GL_TEXTURE_SWIZZLE_R_EXT:

+      case GL_TEXTURE_SWIZZLE_G_EXT:

+      case GL_TEXTURE_SWIZZLE_B_EXT:

+      case GL_TEXTURE_SWIZZLE_A_EXT:

+         if (ctx->Extensions.EXT_texture_swizzle) {

+            GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT;

+            *params = (GLfloat) obj->Swizzle[comp];

+         }

+         else {

+            error = GL_TRUE;

+         }

+         break;

+

+      case GL_TEXTURE_SWIZZLE_RGBA_EXT:

+         if (ctx->Extensions.EXT_texture_swizzle) {

+            GLuint comp;

+            for (comp = 0; comp < 4; comp++) {

+               params[comp] = (GLfloat) obj->Swizzle[comp];

+            }

+         }

+         else {

+            error = GL_TRUE;

+         }

+         break;

+

+      default:

+	 error = GL_TRUE;

+	 break;

+   }

+

+   if (error)

+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname=0x%x)",

+		  pname);

+

+   _mesa_unlock_texture(ctx, obj);

+}

+

+

+void GLAPIENTRY

+_mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )

+{

+   struct gl_texture_object *obj;

+   GLboolean error = GL_FALSE;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+    obj = get_texobj(ctx, target, GL_TRUE);

+    if (!obj)

+       return;

+

+   _mesa_lock_texture(ctx, obj);

+   switch (pname) {

+      case GL_TEXTURE_MAG_FILTER:

+         *params = (GLint) obj->MagFilter;

+         break;;

+      case GL_TEXTURE_MIN_FILTER:

+         *params = (GLint) obj->MinFilter;

+         break;;

+      case GL_TEXTURE_WRAP_S:

+         *params = (GLint) obj->WrapS;

+         break;;

+      case GL_TEXTURE_WRAP_T:

+         *params = (GLint) obj->WrapT;

+         break;;

+      case GL_TEXTURE_WRAP_R:

+         *params = (GLint) obj->WrapR;

+         break;;

+      case GL_TEXTURE_BORDER_COLOR:

+         {

+            GLfloat b[4];

+            b[0] = CLAMP(obj->BorderColor.f[0], 0.0F, 1.0F);

+            b[1] = CLAMP(obj->BorderColor.f[1], 0.0F, 1.0F);

+            b[2] = CLAMP(obj->BorderColor.f[2], 0.0F, 1.0F);

+            b[3] = CLAMP(obj->BorderColor.f[3], 0.0F, 1.0F);

+            params[0] = FLOAT_TO_INT(b[0]);

+            params[1] = FLOAT_TO_INT(b[1]);

+            params[2] = FLOAT_TO_INT(b[2]);

+            params[3] = FLOAT_TO_INT(b[3]);

+         }

+         break;;

+      case GL_TEXTURE_RESIDENT:

+         {

+            GLboolean resident;

+            if (ctx->Driver.IsTextureResident)

+               resident = ctx->Driver.IsTextureResident(ctx, obj);

+            else

+               resident = GL_TRUE;

+            *params = (GLint) resident;

+         }

+         break;;

+      case GL_TEXTURE_PRIORITY:

+         *params = FLOAT_TO_INT(obj->Priority);

+         break;;

+      case GL_TEXTURE_MIN_LOD:

+         *params = (GLint) obj->MinLod;

+         break;;

+      case GL_TEXTURE_MAX_LOD:

+         *params = (GLint) obj->MaxLod;

+         break;;

+      case GL_TEXTURE_BASE_LEVEL:

+         *params = obj->BaseLevel;

+         break;;

+      case GL_TEXTURE_MAX_LEVEL:

+         *params = obj->MaxLevel;

+         break;;

+      case GL_TEXTURE_MAX_ANISOTROPY_EXT:

+         if (ctx->Extensions.EXT_texture_filter_anisotropic) {

+            *params = (GLint) obj->MaxAnisotropy;

+         }

+         else {

+            error = GL_TRUE;

+         }

+         break;

+      case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:

+         if (ctx->Extensions.ARB_shadow_ambient) {

+            *params = (GLint) FLOAT_TO_INT(obj->CompareFailValue);

+         }

+         else {

+            error = GL_TRUE;

+         }

+         break;

+      case GL_GENERATE_MIPMAP_SGIS:

+	 *params = (GLint) obj->GenerateMipmap;

+         break;

+      case GL_TEXTURE_COMPARE_MODE_ARB:

+         if (ctx->Extensions.ARB_shadow) {

+            *params = (GLint) obj->CompareMode;

+         }

+         else {

+            error = GL_TRUE;

+         }

+         break;

+      case GL_TEXTURE_COMPARE_FUNC_ARB:

+         if (ctx->Extensions.ARB_shadow) {

+            *params = (GLint) obj->CompareFunc;

+         }

+         else {

+            error = GL_TRUE;

+         }

+         break;

+      case GL_DEPTH_TEXTURE_MODE_ARB:

+         if (ctx->Extensions.ARB_depth_texture) {

+            *params = (GLint) obj->DepthMode;

+         }

+         else {

+            error = GL_TRUE;

+         }

+         break;

+      case GL_TEXTURE_LOD_BIAS:

+         if (ctx->Extensions.EXT_texture_lod_bias) {

+            *params = (GLint) obj->LodBias;

+         }

+         else {

+            error = GL_TRUE;

+         }

+         break;

+#if FEATURE_OES_draw_texture

+      case GL_TEXTURE_CROP_RECT_OES:

+         params[0] = obj->CropRect[0];

+         params[1] = obj->CropRect[1];

+         params[2] = obj->CropRect[2];

+         params[3] = obj->CropRect[3];

+         break;

+#endif

+      case GL_TEXTURE_SWIZZLE_R_EXT:

+      case GL_TEXTURE_SWIZZLE_G_EXT:

+      case GL_TEXTURE_SWIZZLE_B_EXT:

+      case GL_TEXTURE_SWIZZLE_A_EXT:

+         if (ctx->Extensions.EXT_texture_swizzle) {

+            GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT;

+            *params = obj->Swizzle[comp];

+         }

+         else {

+            error = GL_TRUE;

+         }

+         break;

+

+      case GL_TEXTURE_SWIZZLE_RGBA_EXT:

+         if (ctx->Extensions.EXT_texture_swizzle) {

+            COPY_4V(params, obj->Swizzle);

+         }

+         else {

+            error = GL_TRUE;

+         }

+         break;

+

+      default:

+         ; /* silence warnings */

+   }

+

+   if (error)

+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname=0x%x)",

+		  pname);

+

+   _mesa_unlock_texture(ctx, obj);

+}

+

+

+/** New in GL 3.0 */

+void GLAPIENTRY

+_mesa_GetTexParameterIiv(GLenum target, GLenum pname, GLint *params)

+{

+   struct gl_texture_object *texObj;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   texObj = get_texobj(ctx, target, GL_TRUE);

+   

+   switch (pname) {

+   case GL_TEXTURE_BORDER_COLOR:

+      COPY_4V(params, texObj->BorderColor.i);

+      break;

+   default:

+      _mesa_GetTexParameteriv(target, pname, params);

+   }

+}

+

+

+/** New in GL 3.0 */

+void GLAPIENTRY

+_mesa_GetTexParameterIuiv(GLenum target, GLenum pname, GLuint *params)

+{

+   struct gl_texture_object *texObj;

+   GET_CURRENT_CONTEXT(ctx);

+   ASSERT_OUTSIDE_BEGIN_END(ctx);

+

+   texObj = get_texobj(ctx, target, GL_TRUE);

+   

+   switch (pname) {

+   case GL_TEXTURE_BORDER_COLOR:

+      COPY_4V(params, texObj->BorderColor.i);

+      break;

+   default:

+      {

+         GLint ip[4];

+         _mesa_GetTexParameteriv(target, pname, ip);

+         params[0] = ip[0];

+         if (pname == GL_TEXTURE_SWIZZLE_RGBA_EXT || 

+             pname == GL_TEXTURE_CROP_RECT_OES) {

+            params[1] = ip[1];

+            params[2] = ip[2];

+            params[3] = ip[3];

+         }

+      }

+   }

+}