mesa/colormac: introduce inline helper for 4 unclamped float to ubyte.
[mesa.git] / src / mesa / main / texparam.c
index d5c83de97f78ed730b199aeb01dddcc29f50f5cc..19a01a14debfdc0b057a7c2f206440651eb16cf2 100644 (file)
 #include "main/glheader.h"
 #include "main/colormac.h"
 #include "main/context.h"
+#include "main/enums.h"
 #include "main/formats.h"
 #include "main/macros.h"
+#include "main/mfeatures.h"
+#include "main/mtypes.h"
+#include "main/state.h"
 #include "main/texcompress.h"
 #include "main/texparam.h"
 #include "main/teximage.h"
 #include "main/texstate.h"
+#include "main/texfetch.h"
 #include "program/prog_instruction.h"
 
 
@@ -113,12 +118,14 @@ get_texobj(struct gl_context *ctx, GLenum target, GLboolean get)
       }
       break;
    case GL_TEXTURE_1D_ARRAY_EXT:
-      if (ctx->Extensions.MESA_texture_array) {
+      if (ctx->Extensions.MESA_texture_array ||
+          ctx->Extensions.EXT_texture_array) {
          return texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX];
       }
       break;
    case GL_TEXTURE_2D_ARRAY_EXT:
-      if (ctx->Extensions.MESA_texture_array) {
+      if (ctx->Extensions.MESA_texture_array ||
+          ctx->Extensions.EXT_texture_array) {
          return texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX];
       }
       break;
@@ -172,13 +179,26 @@ set_swizzle_component(GLuint *swizzle, GLuint comp, GLuint swz)
 
 
 /**
- * This is called just prior to changing any texture object state.
+ * This is called just prior to changing any texture object state which
+ * will not effect texture completeness.
+ */
+static INLINE void
+flush(struct gl_context *ctx)
+{
+   FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+}
+
+
+/**
+ * This is called just prior to changing any texture object state which
+ * can effect texture completeness (texture base level, max level,
+ * minification filter).
  * 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)
+incomplete(struct gl_context *ctx, struct gl_texture_object *texObj)
 {
    FLUSH_VERTICES(ctx, _NEW_TEXTURE);
    texObj->_Complete = GL_FALSE;
@@ -196,71 +216,69 @@ set_tex_parameteri(struct gl_context *ctx,
 {
    switch (pname) {
    case GL_TEXTURE_MIN_FILTER:
-      if (texObj->MinFilter == params[0])
+      if (texObj->Sampler.MinFilter == params[0])
          return GL_FALSE;
       switch (params[0]) {
       case GL_NEAREST:
       case GL_LINEAR:
-         flush(ctx, texObj);
-         texObj->MinFilter = params[0];
+         incomplete(ctx, texObj);
+         texObj->Sampler.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];
+            incomplete(ctx, texObj);
+            texObj->Sampler.MinFilter = params[0];
             return GL_TRUE;
          }
          /* fall-through */
       default:
-         _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)",
-                      params[0] );
+         goto invalid_param;
       }
       return GL_FALSE;
 
    case GL_TEXTURE_MAG_FILTER:
-      if (texObj->MagFilter == params[0])
+      if (texObj->Sampler.MagFilter == params[0])
          return GL_FALSE;
       switch (params[0]) {
       case GL_NEAREST:
       case GL_LINEAR:
-         flush(ctx, texObj);
-         texObj->MagFilter = params[0];
+         flush(ctx); /* does not effect completeness */
+         texObj->Sampler.MagFilter = params[0];
          return GL_TRUE;
       default:
-         _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)",
-                      params[0]);
+         goto invalid_param;
       }
       return GL_FALSE;
 
    case GL_TEXTURE_WRAP_S:
-      if (texObj->WrapS == params[0])
+      if (texObj->Sampler.WrapS == params[0])
          return GL_FALSE;
       if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
-         flush(ctx, texObj);
-         texObj->WrapS = params[0];
+         flush(ctx);
+         texObj->Sampler.WrapS = params[0];
          return GL_TRUE;
       }
       return GL_FALSE;
 
    case GL_TEXTURE_WRAP_T:
-      if (texObj->WrapT == params[0])
+      if (texObj->Sampler.WrapT == params[0])
          return GL_FALSE;
       if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
-         flush(ctx, texObj);
-         texObj->WrapT = params[0];
+         flush(ctx);
+         texObj->Sampler.WrapT = params[0];
          return GL_TRUE;
       }
       return GL_FALSE;
 
    case GL_TEXTURE_WRAP_R:
-      if (texObj->WrapR == params[0])
+      if (texObj->Sampler.WrapR == params[0])
          return GL_FALSE;
       if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
-         flush(ctx, texObj);
-         texObj->WrapR = params[0];
+         flush(ctx);
+         texObj->Sampler.WrapR = params[0];
          return GL_TRUE;
       }
       return GL_FALSE;
@@ -274,7 +292,7 @@ set_tex_parameteri(struct gl_context *ctx,
                      "glTexParameter(param=%d)", params[0]);
          return GL_FALSE;
       }
-      flush(ctx, texObj);
+      incomplete(ctx, texObj);
       texObj->BaseLevel = params[0];
       return GL_TRUE;
 
@@ -286,44 +304,41 @@ set_tex_parameteri(struct gl_context *ctx,
                      "glTexParameter(param=%d)", params[0]);
          return GL_FALSE;
       }
-      flush(ctx, texObj);
+      incomplete(ctx, texObj);
       texObj->MaxLevel = params[0];
       return GL_TRUE;
 
    case GL_GENERATE_MIPMAP_SGIS:
       if (texObj->GenerateMipmap != params[0]) {
-        flush(ctx, texObj);
+         /* no flush() */
         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];
+      if (ctx->Extensions.ARB_shadow) {
+         if (texObj->Sampler.CompareMode == params[0])
+            return GL_FALSE;
+         if (params[0] == GL_NONE ||
+             params[0] == GL_COMPARE_R_TO_TEXTURE_ARB) {
+            flush(ctx);
+            texObj->Sampler.CompareMode = params[0];
             return GL_TRUE;
          }
-         return GL_FALSE;
+         goto invalid_param;
       }
-      else {
-         _mesa_error(ctx, GL_INVALID_ENUM,
-                     "glTexParameter(GL_TEXTURE_COMPARE_MODE_ARB)");
-      }
-      return GL_FALSE;
+      goto invalid_pname;
 
    case GL_TEXTURE_COMPARE_FUNC_ARB:
       if (ctx->Extensions.ARB_shadow) {
-         if (texObj->CompareFunc == params[0])
+         if (texObj->Sampler.CompareFunc == params[0])
             return GL_FALSE;
          switch (params[0]) {
          case GL_LEQUAL:
          case GL_GEQUAL:
-            flush(ctx, texObj);
-            texObj->CompareFunc = params[0];
+            flush(ctx);
+            texObj->Sampler.CompareFunc = params[0];
             return GL_TRUE;
          case GL_EQUAL:
          case GL_NOTEQUAL:
@@ -332,38 +347,32 @@ set_tex_parameteri(struct gl_context *ctx,
          case GL_ALWAYS:
          case GL_NEVER:
             if (ctx->Extensions.EXT_shadow_funcs) {
-               flush(ctx, texObj);
-               texObj->CompareFunc = params[0];
+               flush(ctx);
+               texObj->Sampler.CompareFunc = params[0];
                return GL_TRUE;
             }
             /* fall-through */
          default:
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glTexParameter(GL_TEXTURE_COMPARE_FUNC_ARB)");
+            goto invalid_param;
          }
       }
-      else {
-         _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);
-      }
-      return GL_FALSE;
+      goto invalid_pname;
 
    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];
+      if (ctx->Extensions.ARB_depth_texture) {
+         if (texObj->Sampler.DepthMode == params[0])
+            return GL_FALSE;
+         if (params[0] == GL_LUMINANCE ||
+             params[0] == GL_INTENSITY ||
+             params[0] == GL_ALPHA ||
+             (ctx->Extensions.ARB_texture_rg && params[0] == GL_RED)) {
+            flush(ctx);
+            texObj->Sampler.DepthMode = params[0];
             return GL_TRUE;
          }
+         goto invalid_param;
       }
-      else {
-         _mesa_error(ctx, GL_INVALID_ENUM,
-                     "glTexParameter(GL_DEPTH_TEXTURE_MODE_ARB)");
-      }
-      return GL_FALSE;
+      goto invalid_pname;
 
 #if FEATURE_OES_draw_texture
    case GL_TEXTURE_CROP_RECT_OES:
@@ -388,19 +397,18 @@ set_tex_parameteri(struct gl_context *ctx,
          }
          ASSERT(comp < 4);
          if (swz >= 0) {
-            flush(ctx, texObj);
+            flush(ctx);
             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;
+      goto invalid_pname;
 
    case GL_TEXTURE_SWIZZLE_RGBA_EXT:
       if (ctx->Extensions.EXT_texture_swizzle) {
          GLuint comp;
-         flush(ctx, texObj);
+         flush(ctx);
          for (comp = 0; comp < 4; comp++) {
             const GLint swz = comp_to_swizzle(params[comp]);
             if (swz >= 0) {
@@ -415,12 +423,48 @@ set_tex_parameteri(struct gl_context *ctx,
          }
          return GL_TRUE;
       }
-      _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);
-      return GL_FALSE;
+      goto invalid_pname;
+
+   case GL_TEXTURE_SRGB_DECODE_EXT:
+      if (ctx->Extensions.EXT_texture_sRGB_decode) {
+        GLenum decode = params[0];
+        if (decode == GL_DECODE_EXT || decode == GL_SKIP_DECODE_EXT) {
+           if (texObj->Sampler.sRGBDecode != decode) {
+              flush(ctx);
+              texObj->Sampler.sRGBDecode = decode;
+              _mesa_update_fetch_functions(texObj);
+           }
+           return GL_TRUE;
+        }
+      }
+      goto invalid_pname;
+
+   case GL_TEXTURE_CUBE_MAP_SEAMLESS:
+      if (ctx->Extensions.AMD_seamless_cubemap_per_texture) {
+         GLenum param = params[0];
+         if (param != GL_TRUE && param != GL_FALSE) {
+            goto invalid_param;
+         }
+         if (param != texObj->Sampler.CubeMapSeamless) {
+            flush(ctx);
+            texObj->Sampler.CubeMapSeamless = param;
+         }
+         return GL_TRUE;
+      }
+      goto invalid_pname;
 
    default:
-      _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);
+      goto invalid_pname;
    }
+
+invalid_pname:
+   _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=%s)",
+               _mesa_lookup_enum_by_nr(pname));
+   return GL_FALSE;
+
+invalid_param:
+   _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(param=%s)",
+               _mesa_lookup_enum_by_nr(params[0]));
    return GL_FALSE;
 }
 
@@ -436,35 +480,35 @@ set_tex_parameterf(struct gl_context *ctx,
 {
    switch (pname) {
    case GL_TEXTURE_MIN_LOD:
-      if (texObj->MinLod == params[0])
+      if (texObj->Sampler.MinLod == params[0])
          return GL_FALSE;
-      flush(ctx, texObj);
-      texObj->MinLod = params[0];
+      flush(ctx);
+      texObj->Sampler.MinLod = params[0];
       return GL_TRUE;
 
    case GL_TEXTURE_MAX_LOD:
-      if (texObj->MaxLod == params[0])
+      if (texObj->Sampler.MaxLod == params[0])
          return GL_FALSE;
-      flush(ctx, texObj);
-      texObj->MaxLod = params[0];
+      flush(ctx);
+      texObj->Sampler.MaxLod = params[0];
       return GL_TRUE;
 
    case GL_TEXTURE_PRIORITY:
-      flush(ctx, texObj);
+      flush(ctx);
       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])
+         if (texObj->Sampler.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);
+         flush(ctx);
          /* clamp to max, that's what NVIDIA does */
-         texObj->MaxAnisotropy = MIN2(params[0],
+         texObj->Sampler.MaxAnisotropy = MIN2(params[0],
                                       ctx->Const.MaxTextureMaxAnisotropy);
          return GL_TRUE;
       }
@@ -478,9 +522,9 @@ set_tex_parameterf(struct gl_context *ctx,
 
    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);
+         if (texObj->Sampler.CompareFailValue != params[0]) {
+            flush(ctx);
+            texObj->Sampler.CompareFailValue = CLAMP(params[0], 0.0F, 1.0F);
             return GL_TRUE;
          }
       }
@@ -493,9 +537,9 @@ set_tex_parameterf(struct gl_context *ctx,
    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];
+         if (texObj->Sampler.LodBias != params[0]) {
+            flush(ctx);
+            texObj->Sampler.LodBias = params[0];
             return GL_TRUE;
          }
          return GL_FALSE;
@@ -503,11 +547,19 @@ set_tex_parameterf(struct gl_context *ctx,
       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];
+      flush(ctx);
+      /* ARB_texture_float disables clamping */
+      if (ctx->Extensions.ARB_texture_float) {
+         texObj->Sampler.BorderColor.f[RCOMP] = params[0];
+         texObj->Sampler.BorderColor.f[GCOMP] = params[1];
+         texObj->Sampler.BorderColor.f[BCOMP] = params[2];
+         texObj->Sampler.BorderColor.f[ACOMP] = params[3];
+      } else {
+         texObj->Sampler.BorderColor.f[RCOMP] = CLAMP(params[0], 0.0F, 1.0F);
+         texObj->Sampler.BorderColor.f[GCOMP] = CLAMP(params[1], 0.0F, 1.0F);
+         texObj->Sampler.BorderColor.f[BCOMP] = CLAMP(params[2], 0.0F, 1.0F);
+         texObj->Sampler.BorderColor.f[ACOMP] = CLAMP(params[3], 0.0F, 1.0F);
+      }
       return GL_TRUE;
 
    default:
@@ -541,6 +593,8 @@ _mesa_TexParameterf(GLenum target, GLenum pname, GLfloat param)
    case GL_TEXTURE_COMPARE_MODE_ARB:
    case GL_TEXTURE_COMPARE_FUNC_ARB:
    case GL_DEPTH_TEXTURE_MODE_ARB:
+   case GL_TEXTURE_SRGB_DECODE_EXT:
+   case GL_TEXTURE_CUBE_MAP_SEAMLESS:
       {
          /* convert float param to int */
          GLint p[4];
@@ -589,6 +643,8 @@ _mesa_TexParameterfv(GLenum target, GLenum pname, const GLfloat *params)
    case GL_TEXTURE_COMPARE_MODE_ARB:
    case GL_TEXTURE_COMPARE_FUNC_ARB:
    case GL_DEPTH_TEXTURE_MODE_ARB:
+   case GL_TEXTURE_SRGB_DECODE_EXT:
+   case GL_TEXTURE_CUBE_MAP_SEAMLESS:
       {
          /* convert float param to int */
          GLint p[4];
@@ -744,7 +800,7 @@ _mesa_TexParameterIiv(GLenum target, GLenum pname, const GLint *params)
    case GL_TEXTURE_BORDER_COLOR:
       FLUSH_VERTICES(ctx, _NEW_TEXTURE);
       /* set the integer-valued border color */
-      COPY_4V(texObj->BorderColor.i, params);
+      COPY_4V(texObj->Sampler.BorderColor.i, params);
       break;
    default:
       _mesa_TexParameteriv(target, pname, params);
@@ -774,7 +830,7 @@ _mesa_TexParameterIuiv(GLenum target, GLenum pname, const GLuint *params)
    case GL_TEXTURE_BORDER_COLOR:
       FLUSH_VERTICES(ctx, _NEW_TEXTURE);
       /* set the unsigned integer-valued border color */
-      COPY_4V(texObj->BorderColor.ui, params);
+      COPY_4V(texObj->Sampler.BorderColor.ui, params);
       break;
    default:
       _mesa_TexParameteriv(target, pname, (const GLint *) params);
@@ -803,7 +859,6 @@ _mesa_GetTexLevelParameteriv( GLenum target, GLint level,
    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);
@@ -831,22 +886,19 @@ _mesa_GetTexLevelParameteriv( GLenum target, GLint level,
    }
 
    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) {
+   if (!img || img->TexFormat == MESA_FORMAT_NONE) {
       /* undefined texture image */
       if (pname == GL_TEXTURE_COMPONENTS)
          *params = 1;
       else
          *params = 0;
-      goto out;
+      return;
    }
 
    texFormat = img->TexFormat;
 
-   isProxy = _mesa_is_proxy_texture(target);
-
    switch (pname) {
       case GL_TEXTURE_WIDTH:
          *params = img->Width;
@@ -858,14 +910,28 @@ _mesa_GetTexLevelParameteriv( GLenum target, GLint level,
          *params = img->Depth;
          break;
       case GL_TEXTURE_INTERNAL_FORMAT:
-         if (_mesa_is_format_compressed(img->TexFormat)) {
+         if (_mesa_is_format_compressed(texFormat)) {
             /* need to return the actual compressed format */
-            *params = _mesa_compressed_format_to_glenum(ctx, img->TexFormat);
+            *params = _mesa_compressed_format_to_glenum(ctx, texFormat);
          }
          else {
-            /* return the user's requested internal format */
-            *params = img->InternalFormat;
-         }
+           /* If the true internal format is not compressed but the user
+            * requested a generic compressed format, we have to return the
+            * generic base format that matches.
+            *
+            * From page 119 (page 129 of the PDF) of the OpenGL 1.3 spec:
+            *
+            *     "If no specific compressed format is available,
+            *     internalformat is instead replaced by the corresponding base
+            *     internal format."
+            *
+            * Otherwise just return the user's requested internal format
+            */
+           const GLenum f =
+              _mesa_gl_compressed_format_base_format(img->InternalFormat);
+
+           *params = (f != 0) ? f : img->InternalFormat;
+        }
          break;
       case GL_TEXTURE_BORDER:
          *params = img->Border;
@@ -921,45 +987,28 @@ _mesa_GetTexLevelParameteriv( GLenum target, GLint level,
             }
          }
          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)");
+         if (!ctx->Extensions.ARB_depth_texture)
+            goto invalid_pname;
+         *params = _mesa_get_format_bits(texFormat, 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)");
-         }
+         if (!ctx->Extensions.EXT_packed_depth_stencil &&
+             !ctx->Extensions.ARB_framebuffer_object)
+            goto invalid_pname;
+         *params = _mesa_get_format_bits(texFormat, 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)");
-         }
+         if (ctx->VersionMajor < 3 &&
+             !ctx->Extensions.EXT_texture_shared_exponent)
+            goto invalid_pname;
+         *params = texFormat == MESA_FORMAT_RGB9_E5_FLOAT ? 5 : 0;
          break;
 
       /* GL_ARB_texture_compression */
       case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:
-        if (_mesa_is_format_compressed(img->TexFormat) && !isProxy) {
+        if (_mesa_is_format_compressed(texFormat) &&
+             !_mesa_is_proxy_texture(target)) {
             *params = _mesa_format_image_size(texFormat, img->Width,
                                               img->Height, img->Depth);
         }
@@ -969,88 +1018,64 @@ _mesa_GetTexLevelParameteriv( GLenum target, GLint level,
         }
          break;
       case GL_TEXTURE_COMPRESSED:
-         *params = (GLint) _mesa_is_format_compressed(img->TexFormat);
+         *params = (GLint) _mesa_is_format_compressed(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)");
-         }
+         if (!ctx->Extensions.ARB_texture_float)
+            goto invalid_pname;
+         *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE) ?
+            _mesa_get_format_datatype(texFormat) : GL_NONE;
          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)");
-         }
+         if (!ctx->Extensions.ARB_texture_float)
+            goto invalid_pname;
+         *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE) ?
+            _mesa_get_format_datatype(texFormat) : GL_NONE;
          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)");
-         }
+         if (!ctx->Extensions.ARB_texture_float)
+            goto invalid_pname;
+         *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_BLUE_SIZE) ?
+            _mesa_get_format_datatype(texFormat) : GL_NONE;
          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)");
-         }
+         if (!ctx->Extensions.ARB_texture_float)
+            goto invalid_pname;
+         *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_ALPHA_SIZE) ?
+            _mesa_get_format_datatype(texFormat) : GL_NONE;
          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)");
-         }
+         if (!ctx->Extensions.ARB_texture_float)
+            goto invalid_pname;
+         *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_LUMINANCE_SIZE) ?
+            _mesa_get_format_datatype(texFormat) : GL_NONE;
          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)");
-         }
+         if (!ctx->Extensions.ARB_texture_float)
+            goto invalid_pname;
+         *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_INTENSITY_SIZE) ?
+            _mesa_get_format_datatype(texFormat) : GL_NONE;
          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)");
-         }
+         if (!ctx->Extensions.ARB_texture_float)
+            goto invalid_pname;
+         *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_DEPTH_SIZE) ?
+            _mesa_get_format_datatype(texFormat) : GL_NONE;
          break;
 
       default:
-         _mesa_error(ctx, GL_INVALID_ENUM,
-                     "glGetTexLevelParameter[if]v(pname)");
+         goto invalid_pname;
    }
 
- out:
-   _mesa_unlock_texture(ctx, texObj);
+   /* no error if we get here */
+   return;
+
+invalid_pname:
+   _mesa_error(ctx, GL_INVALID_ENUM,
+               "glGetTexLevelParameter[if]v(pname=%s)",
+               _mesa_lookup_enum_by_nr(pname));
 }
 
 
@@ -1059,7 +1084,6 @@ 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);
 
@@ -1070,44 +1094,48 @@ _mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params )
    _mesa_lock_texture(ctx, obj);
    switch (pname) {
       case GL_TEXTURE_MAG_FILTER:
-        *params = ENUM_TO_FLOAT(obj->MagFilter);
+        *params = ENUM_TO_FLOAT(obj->Sampler.MagFilter);
         break;
       case GL_TEXTURE_MIN_FILTER:
-         *params = ENUM_TO_FLOAT(obj->MinFilter);
+         *params = ENUM_TO_FLOAT(obj->Sampler.MinFilter);
          break;
       case GL_TEXTURE_WRAP_S:
-         *params = ENUM_TO_FLOAT(obj->WrapS);
+         *params = ENUM_TO_FLOAT(obj->Sampler.WrapS);
          break;
       case GL_TEXTURE_WRAP_T:
-         *params = ENUM_TO_FLOAT(obj->WrapT);
+         *params = ENUM_TO_FLOAT(obj->Sampler.WrapT);
          break;
       case GL_TEXTURE_WRAP_R:
-         *params = ENUM_TO_FLOAT(obj->WrapR);
+         *params = ENUM_TO_FLOAT(obj->Sampler.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);
+         if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
+            _mesa_update_state_locked(ctx);
+         if (ctx->Color._ClampFragmentColor) {
+            params[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F);
+            params[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F);
+            params[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F);
+            params[3] = CLAMP(obj->Sampler.BorderColor.f[3], 0.0F, 1.0F);
+         }
+         else {
+            params[0] = obj->Sampler.BorderColor.f[0];
+            params[1] = obj->Sampler.BorderColor.f[1];
+            params[2] = obj->Sampler.BorderColor.f[2];
+            params[3] = obj->Sampler.BorderColor.f[3];
+         }
          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);
-         }
+         *params = ctx->Driver.IsTextureResident ?
+            ctx->Driver.IsTextureResident(ctx, obj) : 1.0F;
          break;
       case GL_TEXTURE_PRIORITY:
          *params = obj->Priority;
          break;
       case GL_TEXTURE_MIN_LOD:
-         *params = obj->MinLod;
+         *params = obj->Sampler.MinLod;
          break;
       case GL_TEXTURE_MAX_LOD:
-         *params = obj->MaxLod;
+         *params = obj->Sampler.MaxLod;
          break;
       case GL_TEXTURE_BASE_LEVEL:
          *params = (GLfloat) obj->BaseLevel;
@@ -1116,49 +1144,37 @@ _mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params )
          *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;
+         if (!ctx->Extensions.EXT_texture_filter_anisotropic)
+            goto invalid_pname;
+         *params = obj->Sampler.MaxAnisotropy;
          break;
       case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
-         if (ctx->Extensions.ARB_shadow_ambient) {
-            *params = obj->CompareFailValue;
-         }
-        else 
-           error = GL_TRUE;
+         if (!ctx->Extensions.ARB_shadow_ambient)
+            goto invalid_pname;
+         *params = obj->Sampler.CompareFailValue;
          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;
+         if (!ctx->Extensions.ARB_shadow)
+            goto invalid_pname;
+         *params = (GLfloat) obj->Sampler.CompareMode;
          break;
       case GL_TEXTURE_COMPARE_FUNC_ARB:
-         if (ctx->Extensions.ARB_shadow) {
-            *params = (GLfloat) obj->CompareFunc;
-         }
-        else 
-           error = GL_TRUE;
+         if (!ctx->Extensions.ARB_shadow)
+            goto invalid_pname;
+         *params = (GLfloat) obj->Sampler.CompareFunc;
          break;
       case GL_DEPTH_TEXTURE_MODE_ARB:
-         if (ctx->Extensions.ARB_depth_texture) {
-            *params = (GLfloat) obj->DepthMode;
-         }
-        else 
-           error = GL_TRUE;
+         if (!ctx->Extensions.ARB_depth_texture)
+            goto invalid_pname;
+         *params = (GLfloat) obj->Sampler.DepthMode;
          break;
       case GL_TEXTURE_LOD_BIAS:
-         if (ctx->Extensions.EXT_texture_lod_bias) {
-            *params = obj->LodBias;
-         }
-        else 
-           error = GL_TRUE;
+         if (!ctx->Extensions.EXT_texture_lod_bias)
+            goto invalid_pname;
+         *params = obj->Sampler.LodBias;
          break;
 #if FEATURE_OES_draw_texture
       case GL_TEXTURE_CROP_RECT_OES:
@@ -1173,37 +1189,40 @@ _mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params )
       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;
-         }
+         if (!ctx->Extensions.EXT_texture_swizzle)
+            goto invalid_pname;
+         *params = (GLfloat) obj->Swizzle[pname - GL_TEXTURE_SWIZZLE_R_EXT];
          break;
 
       case GL_TEXTURE_SWIZZLE_RGBA_EXT:
-         if (ctx->Extensions.EXT_texture_swizzle) {
+         if (!ctx->Extensions.EXT_texture_swizzle) {
+            goto invalid_pname;
+         }
+         else {
             GLuint comp;
             for (comp = 0; comp < 4; comp++) {
                params[comp] = (GLfloat) obj->Swizzle[comp];
             }
          }
-         else {
-            error = GL_TRUE;
-         }
+         break;
+
+      case GL_TEXTURE_CUBE_MAP_SEAMLESS:
+         if (!ctx->Extensions.AMD_seamless_cubemap_per_texture)
+            goto invalid_pname;
+         *params = (GLfloat) obj->Sampler.CubeMapSeamless;
          break;
 
       default:
-        error = GL_TRUE;
-        break;
+         goto invalid_pname;
    }
 
-   if (error)
-      _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname=0x%x)",
-                 pname);
+   /* no error if we get here */
+   _mesa_unlock_texture(ctx, obj);
+   return;
 
+invalid_pname:
    _mesa_unlock_texture(ctx, obj);
+   _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname=0x%x)", pname);
 }
 
 
@@ -1211,38 +1230,37 @@ 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;
+   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;
+         *params = (GLint) obj->Sampler.MagFilter;
          break;;
       case GL_TEXTURE_MIN_FILTER:
-         *params = (GLint) obj->MinFilter;
+         *params = (GLint) obj->Sampler.MinFilter;
          break;;
       case GL_TEXTURE_WRAP_S:
-         *params = (GLint) obj->WrapS;
+         *params = (GLint) obj->Sampler.WrapS;
          break;;
       case GL_TEXTURE_WRAP_T:
-         *params = (GLint) obj->WrapT;
+         *params = (GLint) obj->Sampler.WrapT;
          break;;
       case GL_TEXTURE_WRAP_R:
-         *params = (GLint) obj->WrapR;
+         *params = (GLint) obj->Sampler.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);
+            b[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F);
+            b[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F);
+            b[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F);
+            b[3] = CLAMP(obj->Sampler.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]);
@@ -1250,23 +1268,17 @@ _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
          }
          break;;
       case GL_TEXTURE_RESIDENT:
-         {
-            GLboolean resident;
-            if (ctx->Driver.IsTextureResident)
-               resident = ctx->Driver.IsTextureResident(ctx, obj);
-            else
-               resident = GL_TRUE;
-            *params = (GLint) resident;
-         }
+         *params = ctx->Driver.IsTextureResident ?
+            ctx->Driver.IsTextureResident(ctx, obj) : 1;
          break;;
       case GL_TEXTURE_PRIORITY:
          *params = FLOAT_TO_INT(obj->Priority);
          break;;
       case GL_TEXTURE_MIN_LOD:
-         *params = (GLint) obj->MinLod;
+         *params = (GLint) obj->Sampler.MinLod;
          break;;
       case GL_TEXTURE_MAX_LOD:
-         *params = (GLint) obj->MaxLod;
+         *params = (GLint) obj->Sampler.MaxLod;
          break;;
       case GL_TEXTURE_BASE_LEVEL:
          *params = obj->BaseLevel;
@@ -1275,55 +1287,37 @@ _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
          *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;
-         }
+         if (!ctx->Extensions.EXT_texture_filter_anisotropic)
+            goto invalid_pname;
+         *params = (GLint) obj->Sampler.MaxAnisotropy;
          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;
-         }
+         if (!ctx->Extensions.ARB_shadow_ambient)
+            goto invalid_pname;
+         *params = (GLint) FLOAT_TO_INT(obj->Sampler.CompareFailValue);
          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;
-         }
+         if (!ctx->Extensions.ARB_shadow)
+            goto invalid_pname;
+         *params = (GLint) obj->Sampler.CompareMode;
          break;
       case GL_TEXTURE_COMPARE_FUNC_ARB:
-         if (ctx->Extensions.ARB_shadow) {
-            *params = (GLint) obj->CompareFunc;
-         }
-         else {
-            error = GL_TRUE;
-         }
+         if (!ctx->Extensions.ARB_shadow)
+            goto invalid_pname;
+         *params = (GLint) obj->Sampler.CompareFunc;
          break;
       case GL_DEPTH_TEXTURE_MODE_ARB:
-         if (ctx->Extensions.ARB_depth_texture) {
-            *params = (GLint) obj->DepthMode;
-         }
-         else {
-            error = GL_TRUE;
-         }
+         if (!ctx->Extensions.ARB_depth_texture)
+            goto invalid_pname;
+         *params = (GLint) obj->Sampler.DepthMode;
          break;
       case GL_TEXTURE_LOD_BIAS:
-         if (ctx->Extensions.EXT_texture_lod_bias) {
-            *params = (GLint) obj->LodBias;
-         }
-         else {
-            error = GL_TRUE;
-         }
+         if (!ctx->Extensions.EXT_texture_lod_bias)
+            goto invalid_pname;
+         *params = (GLint) obj->Sampler.LodBias;
          break;
 #if FEATURE_OES_draw_texture
       case GL_TEXTURE_CROP_RECT_OES:
@@ -1337,33 +1331,34 @@ _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
       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;
-         }
+         if (!ctx->Extensions.EXT_texture_swizzle)
+            goto invalid_pname;
+         *params = obj->Swizzle[pname - GL_TEXTURE_SWIZZLE_R_EXT];
          break;
 
       case GL_TEXTURE_SWIZZLE_RGBA_EXT:
-         if (ctx->Extensions.EXT_texture_swizzle) {
-            COPY_4V(params, obj->Swizzle);
-         }
-         else {
-            error = GL_TRUE;
-         }
+         if (!ctx->Extensions.EXT_texture_swizzle)
+            goto invalid_pname;
+         COPY_4V(params, obj->Swizzle);
+         break;
+
+      case GL_TEXTURE_CUBE_MAP_SEAMLESS:
+         if (!ctx->Extensions.AMD_seamless_cubemap_per_texture)
+            goto invalid_pname;
+         *params = (GLint) obj->Sampler.CubeMapSeamless;
          break;
 
       default:
-         ; /* silence warnings */
+         goto invalid_pname;
    }
 
-   if (error)
-      _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname=0x%x)",
-                 pname);
+   /* no error if we get here */
+   _mesa_unlock_texture(ctx, obj);
+   return;
 
+invalid_pname:
    _mesa_unlock_texture(ctx, obj);
+   _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname=0x%x)", pname);
 }
 
 
@@ -1376,10 +1371,12 @@ _mesa_GetTexParameterIiv(GLenum target, GLenum pname, GLint *params)
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    texObj = get_texobj(ctx, target, GL_TRUE);
+   if (!texObj)
+      return;
    
    switch (pname) {
    case GL_TEXTURE_BORDER_COLOR:
-      COPY_4V(params, texObj->BorderColor.i);
+      COPY_4V(params, texObj->Sampler.BorderColor.i);
       break;
    default:
       _mesa_GetTexParameteriv(target, pname, params);
@@ -1396,10 +1393,12 @@ _mesa_GetTexParameterIuiv(GLenum target, GLenum pname, GLuint *params)
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    texObj = get_texobj(ctx, target, GL_TRUE);
+   if (!texObj)
+      return;
    
    switch (pname) {
    case GL_TEXTURE_BORDER_COLOR:
-      COPY_4V(params, texObj->BorderColor.i);
+      COPY_4V(params, texObj->Sampler.BorderColor.i);
       break;
    default:
       {