Added MesaLib-7.6

1 files changed, 1285 insertions, 0 deletions

diff --git a/mesalib/src/mesa/main/texparam.c b/mesalib/src/mesa/main/texparam.c
new file mode 100644
index 000000000..b2fbe2205
--- /dev/null
+++ b/mesalib/src/mesa/main/texparam.c
@@ -0,0 +1,1285 @@
+/*
+ * 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/context.h"
+#include "main/enums.h"
+#include "main/colormac.h"
+#include "main/macros.h"
+#include "main/texcompress.h"
+#include "main/texparam.h"
+#include "main/teximage.h"
+#include "main/texstate.h"
+#include "shader/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.
+ */
+static struct gl_texture_object *
+get_texobj(GLcontext *ctx, GLenum target)
+{
+   struct gl_texture_unit *texUnit;
+
+   if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureImageUnits) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glTexParameter(current unit)");
+      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, "glTexParameter(target)");
+   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;
+
+#ifdef 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[RCOMP] = params[0];
+      texObj->BorderColor[GCOMP] = params[1];
+      texObj->BorderColor[BCOMP] = params[2];
+      texObj->BorderColor[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);
+   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 = (GLint) param;
+         need_update = set_tex_parameteri(ctx, texObj, pname, &p);
+      }
+      break;
+   default:
+      /* this will generate an error if pname is illegal */
+      need_update = set_tex_parameterf(ctx, texObj, pname, &param);
+   }
+
+   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);
+   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 = (GLint) params[0];
+         need_update = set_tex_parameteri(ctx, texObj, pname, &p);
+      }
+      break;
+
+#ifdef 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, target, 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);
+   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 = (GLfloat) param;
+         /* 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 */
+      need_update = set_tex_parameteri(ctx, texObj, pname, &param);
+   }
+
+   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);
+   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 fparam = (GLfloat) params[0];
+         need_update = set_tex_parameterf(ctx, texObj, pname, &fparam);
+      }
+      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);
+   }
+}
+
+
+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;
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureImageUnits) {
+      _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;
+   }
+
+   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:
+         *params = img->InternalFormat;
+         break;
+      case GL_TEXTURE_BORDER:
+         *params = img->Border;
+         break;
+      case GL_TEXTURE_RED_SIZE:
+         if (img->_BaseFormat == GL_RGB || img->_BaseFormat == GL_RGBA)
+            *params = img->TexFormat->RedBits;
+         else
+            *params = 0;
+         break;
+      case GL_TEXTURE_GREEN_SIZE:
+         if (img->_BaseFormat == GL_RGB || img->_BaseFormat == GL_RGBA)
+            *params = img->TexFormat->GreenBits;
+         else
+            *params = 0;
+         break;
+      case GL_TEXTURE_BLUE_SIZE:
+         if (img->_BaseFormat == GL_RGB || img->_BaseFormat == GL_RGBA)
+            *params = img->TexFormat->BlueBits;
+         else
+            *params = 0;
+         break;
+      case GL_TEXTURE_ALPHA_SIZE:
+         if (img->_BaseFormat == GL_ALPHA ||
+             img->_BaseFormat == GL_LUMINANCE_ALPHA ||
+             img->_BaseFormat == GL_RGBA)
+            *params = img->TexFormat->AlphaBits;
+         else
+            *params = 0;
+         break;
+      case GL_TEXTURE_INTENSITY_SIZE:
+         if (img->_BaseFormat != GL_INTENSITY)
+            *params = 0;
+         else if (img->TexFormat->IntensityBits > 0)
+            *params = img->TexFormat->IntensityBits;
+         else /* intensity probably stored as rgb texture */
+            *params = MIN2(img->TexFormat->RedBits, img->TexFormat->GreenBits);
+         break;
+      case GL_TEXTURE_LUMINANCE_SIZE:
+         if (img->_BaseFormat != GL_LUMINANCE &&
+             img->_BaseFormat != GL_LUMINANCE_ALPHA)
+            *params = 0;
+         else if (img->TexFormat->LuminanceBits > 0)
+            *params = img->TexFormat->LuminanceBits;
+         else /* luminance probably stored as rgb texture */
+            *params = MIN2(img->TexFormat->RedBits, img->TexFormat->GreenBits);
+         break;
+      case GL_TEXTURE_INDEX_SIZE_EXT:
+         if (img->_BaseFormat == GL_COLOR_INDEX)
+            *params = img->TexFormat->IndexBits;
+         else
+            *params = 0;
+         break;
+      case GL_TEXTURE_DEPTH_SIZE_ARB:
+         if (ctx->Extensions.ARB_depth_texture)
+            *params = img->TexFormat->DepthBits;
+         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 = img->TexFormat->StencilBits;
+         }
+         else {
+            _mesa_error(ctx, GL_INVALID_ENUM,
+                        "glGetTexLevelParameter[if]v(pname)");
+         }
+         break;
+
+      /* GL_ARB_texture_compression */
+      case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:
+	 if (img->IsCompressed && !isProxy) {
+	    /* Don't use ctx->Driver.CompressedTextureSize() since that
+	     * may returned a padded hardware size.
+	     */
+	    *params = _mesa_compressed_texture_size(ctx, img->Width,
+						    img->Height, img->Depth,
+						    img->TexFormat->MesaFormat);
+	 }
+	 else {
+	    _mesa_error(ctx, GL_INVALID_OPERATION,
+			"glGetTexLevelParameter[if]v(pname)");
+	 }
+         break;
+      case GL_TEXTURE_COMPRESSED:
+         *params = (GLint) img->IsCompressed;
+         break;
+
+      /* GL_ARB_texture_float */
+      case GL_TEXTURE_RED_TYPE_ARB:
+         if (ctx->Extensions.ARB_texture_float) {
+            *params = img->TexFormat->RedBits ? img->TexFormat->DataType : 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 = img->TexFormat->GreenBits ? img->TexFormat->DataType : 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 = img->TexFormat->BlueBits ? img->TexFormat->DataType : 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 = img->TexFormat->AlphaBits ? img->TexFormat->DataType : 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 = img->TexFormat->LuminanceBits ? img->TexFormat->DataType : 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 = img->TexFormat->IntensityBits ? img->TexFormat->DataType : 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 = img->TexFormat->DepthBits ? img->TexFormat->DataType : 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_unit *texUnit;
+   struct gl_texture_object *obj;
+   GLboolean error = GL_FALSE;
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureImageUnits) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glGetTexParameterfv(current unit)");
+      return;
+   }
+
+   texUnit = _mesa_get_current_tex_unit(ctx);
+
+   obj = _mesa_select_tex_object(ctx, texUnit, target);
+   if (!obj) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(target)");
+      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[0], 0.0F, 1.0F);
+         params[1] = CLAMP(obj->BorderColor[1], 0.0F, 1.0F);
+         params[2] = CLAMP(obj->BorderColor[2], 0.0F, 1.0F);
+         params[3] = CLAMP(obj->BorderColor[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;
+#ifdef 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_unit *texUnit;
+   struct gl_texture_object *obj;
+   GLboolean error = GL_FALSE;
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureImageUnits) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glGetTexParameteriv(current unit)");
+      return;
+   }
+
+   texUnit = _mesa_get_current_tex_unit(ctx);
+
+   obj = _mesa_select_tex_object(ctx, texUnit, target);
+   if (!obj) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(target)");
+      return;
+   }
+
+   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[0], 0.0F, 1.0F);
+            b[1] = CLAMP(obj->BorderColor[1], 0.0F, 1.0F);
+            b[2] = CLAMP(obj->BorderColor[2], 0.0F, 1.0F);
+            b[3] = CLAMP(obj->BorderColor[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;
+#ifdef 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);
+}