mesa: refactor: move glTexParameter-related functions into new texparam.c file

8 files changed, 1107 insertions, 1029 deletions

diff --git a/src/mesa/main/api_exec.c b/src/mesa/main/api_exec.c
index 10b3f9276f8..8ebe4a3e4a6 100644
--- a/src/mesa/main/api_exec.c
+++ b/src/mesa/main/api_exec.c
@@ -112,6 +112,7 @@
 #include "texgen.h"
 #endif
 #include "texobj.h"
+#include "texparam.h"
 #include "texstate.h"
 #include "mtypes.h"
 #include "varray.h"
diff --git a/src/mesa/main/attrib.c b/src/mesa/main/attrib.c
index 8945d6f5da0..dc85da2518f 100644
--- a/src/mesa/main/attrib.c
+++ b/src/mesa/main/attrib.c
@@ -51,6 +51,7 @@
 #include "texenv.h"
 #include "texgen.h"
 #include "texobj.h"
+#include "texparam.h"
 #include "texstate.h"
 #include "varray.h"
 #include "mtypes.h"
diff --git a/src/mesa/main/sources b/src/mesa/main/sources
index c4982be363c..eb8cd900ee5 100644
--- a/src/mesa/main/sources
+++ b/src/mesa/main/sources
@@ -64,6 +64,7 @@ texformat.c \
 texgen.c \
 teximage.c \
 texobj.c \
+texparam.c \
 texrender.c \
 texstate.c \
 texstore.c \
@@ -145,6 +146,7 @@ texformat_tmp.h \
 texgen.h \
 teximage.h \
 texobj.h \
+texparam.h \
 texrender.h \
 texstate.h \
 texstore.h \
diff --git a/src/mesa/main/texparam.c b/src/mesa/main/texparam.c
new file mode 100644
index 00000000000..82abdc1394f
--- /dev/null
+++ b/src/mesa/main/texparam.c
@@ -0,0 +1,1039 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.1
+ *
+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/** 
+ * \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"
+
+
+#define ENUM_TO_FLOAT(X) ((GLfloat)(GLint)(X))
+
+
+/**
+ * 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_VALUE, "glTexParameter(param)" );
+   return GL_FALSE;
+}
+
+
+void GLAPIENTRY
+_mesa_TexParameterf( GLenum target, GLenum pname, GLfloat param )
+{
+   _mesa_TexParameterfv(target, pname, &param);
+}
+
+
+void GLAPIENTRY
+_mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
+{
+   const GLenum eparam = (GLenum) (GLint) params[0];
+   struct gl_texture_unit *texUnit;
+   struct gl_texture_object *texObj;
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+   if (MESA_VERBOSE&(VERBOSE_API|VERBOSE_TEXTURE))
+      _mesa_debug(ctx, "glTexParameter %s %s %.1f(%s)...\n",
+                  _mesa_lookup_enum_by_nr(target),
+                  _mesa_lookup_enum_by_nr(pname),
+                  *params,
+		  _mesa_lookup_enum_by_nr(eparam));
+
+   if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureImageUnits) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glTexParameterfv(current unit)");
+      return;
+   }
+
+   texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+
+   switch (target) {
+      case GL_TEXTURE_1D:
+         texObj = texUnit->Current1D;
+         break;
+      case GL_TEXTURE_2D:
+         texObj = texUnit->Current2D;
+         break;
+      case GL_TEXTURE_3D:
+         texObj = texUnit->Current3D;
+         break;
+      case GL_TEXTURE_CUBE_MAP:
+         if (!ctx->Extensions.ARB_texture_cube_map) {
+            _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(target)" );
+            return;
+         }
+         texObj = texUnit->CurrentCubeMap;
+         break;
+      case GL_TEXTURE_RECTANGLE_NV:
+         if (!ctx->Extensions.NV_texture_rectangle) {
+            _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(target)" );
+            return;
+         }
+         texObj = texUnit->CurrentRect;
+         break;
+      case GL_TEXTURE_1D_ARRAY_EXT:
+         if (!ctx->Extensions.MESA_texture_array) {
+            _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(target)" );
+            return;
+         }
+         texObj = texUnit->Current1DArray;
+         break;
+      case GL_TEXTURE_2D_ARRAY_EXT:
+         if (!ctx->Extensions.MESA_texture_array) {
+            _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(target)" );
+            return;
+         }
+         texObj = texUnit->Current2DArray;
+         break;
+      default:
+         _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(target)" );
+         return;
+   }
+
+   switch (pname) {
+      case GL_TEXTURE_MIN_FILTER:
+         /* A small optimization */
+         if (texObj->MinFilter == eparam)
+            return;
+         if (eparam==GL_NEAREST || eparam==GL_LINEAR) {
+            FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+            texObj->MinFilter = eparam;
+         }
+         else if ((eparam==GL_NEAREST_MIPMAP_NEAREST ||
+                   eparam==GL_LINEAR_MIPMAP_NEAREST ||
+                   eparam==GL_NEAREST_MIPMAP_LINEAR ||
+                   eparam==GL_LINEAR_MIPMAP_LINEAR) &&
+                  texObj->Target != GL_TEXTURE_RECTANGLE_NV) {
+            FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+            texObj->MinFilter = eparam;
+         }
+         else {
+            _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
+            return;
+         }
+         break;
+      case GL_TEXTURE_MAG_FILTER:
+         /* A small optimization */
+         if (texObj->MagFilter == eparam)
+            return;
+
+         if (eparam==GL_NEAREST || eparam==GL_LINEAR) {
+            FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+            texObj->MagFilter = eparam;
+         }
+         else {
+            _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
+            return;
+         }
+         break;
+      case GL_TEXTURE_WRAP_S:
+         if (texObj->WrapS == eparam)
+            return;
+         if (validate_texture_wrap_mode(ctx, texObj->Target, eparam)) {
+            FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+            texObj->WrapS = eparam;
+         }
+         else {
+            return;
+         }
+         break;
+      case GL_TEXTURE_WRAP_T:
+         if (texObj->WrapT == eparam)
+            return;
+         if (validate_texture_wrap_mode(ctx, texObj->Target, eparam)) {
+            FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+            texObj->WrapT = eparam;
+         }
+         else {
+            return;
+         }
+         break;
+      case GL_TEXTURE_WRAP_R:
+         if (texObj->WrapR == eparam)
+            return;
+         if (validate_texture_wrap_mode(ctx, texObj->Target, eparam)) {
+            FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+            texObj->WrapR = eparam;
+         }
+         else {
+	    return;
+         }
+         break;
+      case GL_TEXTURE_BORDER_COLOR:
+         FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+         texObj->BorderColor[RCOMP] = params[0];
+         texObj->BorderColor[GCOMP] = params[1];
+         texObj->BorderColor[BCOMP] = params[2];
+         texObj->BorderColor[ACOMP] = params[3];
+         UNCLAMPED_FLOAT_TO_CHAN(texObj->_BorderChan[RCOMP], params[0]);
+         UNCLAMPED_FLOAT_TO_CHAN(texObj->_BorderChan[GCOMP], params[1]);
+         UNCLAMPED_FLOAT_TO_CHAN(texObj->_BorderChan[BCOMP], params[2]);
+         UNCLAMPED_FLOAT_TO_CHAN(texObj->_BorderChan[ACOMP], params[3]);
+         break;
+      case GL_TEXTURE_MIN_LOD:
+         if (texObj->MinLod == params[0])
+            return;
+         FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+         texObj->MinLod = params[0];
+         break;
+      case GL_TEXTURE_MAX_LOD:
+         if (texObj->MaxLod == params[0])
+            return;
+         FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+         texObj->MaxLod = params[0];
+         break;
+      case GL_TEXTURE_BASE_LEVEL:
+         if (params[0] < 0.0) {
+            _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)");
+            return;
+         }
+         if (target == GL_TEXTURE_RECTANGLE_ARB && params[0] != 0.0) {
+            _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)");
+            return;
+         }
+         FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+         texObj->BaseLevel = (GLint) params[0];
+         break;
+      case GL_TEXTURE_MAX_LEVEL:
+         if (params[0] < 0.0) {
+            _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)");
+            return;
+         }
+         if (target == GL_TEXTURE_RECTANGLE_ARB) {
+            _mesa_error(ctx, GL_INVALID_OPERATION, "glTexParameter(param)");
+            return;
+         }
+         FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+         texObj->MaxLevel = (GLint) params[0];
+         break;
+      case GL_TEXTURE_PRIORITY:
+         FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+         texObj->Priority = CLAMP( params[0], 0.0F, 1.0F );
+         break;
+      case GL_TEXTURE_MAX_ANISOTROPY_EXT:
+         if (ctx->Extensions.EXT_texture_filter_anisotropic) {
+	    if (params[0] < 1.0) {
+	       _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
+	       return;
+	    }
+            FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+            /* clamp to max, that's what NVIDIA does */
+            texObj->MaxAnisotropy = MIN2(params[0],
+                                         ctx->Const.MaxTextureMaxAnisotropy);
+         }
+         else {
+            _mesa_error(ctx, GL_INVALID_ENUM,
+                        "glTexParameter(pname=GL_TEXTURE_MAX_ANISOTROPY_EXT)");
+            return;
+         }
+         break;
+      case GL_TEXTURE_COMPARE_SGIX:
+         if (ctx->Extensions.SGIX_shadow) {
+            FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+            texObj->CompareFlag = params[0] ? GL_TRUE : GL_FALSE;
+         }
+         else {
+            _mesa_error(ctx, GL_INVALID_ENUM,
+                        "glTexParameter(pname=GL_TEXTURE_COMPARE_SGIX)");
+            return;
+         }
+         break;
+      case GL_TEXTURE_COMPARE_OPERATOR_SGIX:
+         if (ctx->Extensions.SGIX_shadow) {
+            GLenum op = (GLenum) params[0];
+            if (op == GL_TEXTURE_LEQUAL_R_SGIX ||
+                op == GL_TEXTURE_GEQUAL_R_SGIX) {
+               FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+               texObj->CompareOperator = op;
+            }
+            else {
+               _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(param)");
+            }
+         }
+         else {
+            _mesa_error(ctx, GL_INVALID_ENUM,
+                    "glTexParameter(pname=GL_TEXTURE_COMPARE_OPERATOR_SGIX)");
+            return;
+         }
+         break;
+      case GL_SHADOW_AMBIENT_SGIX: /* aka GL_TEXTURE_COMPARE_FAIL_VALUE_ARB */
+         if (ctx->Extensions.SGIX_shadow_ambient) {
+            FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+            texObj->ShadowAmbient = CLAMP(params[0], 0.0F, 1.0F);
+         }
+         else {
+            _mesa_error(ctx, GL_INVALID_ENUM,
+                        "glTexParameter(pname=GL_SHADOW_AMBIENT_SGIX)");
+            return;
+         }
+         break;
+      case GL_GENERATE_MIPMAP_SGIS:
+         if (ctx->Extensions.SGIS_generate_mipmap) {
+            FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+            texObj->GenerateMipmap = params[0] ? GL_TRUE : GL_FALSE;
+         }
+         else {
+            _mesa_error(ctx, GL_INVALID_ENUM,
+                        "glTexParameter(pname=GL_GENERATE_MIPMAP_SGIS)");
+            return;
+         }
+         break;
+      case GL_TEXTURE_COMPARE_MODE_ARB:
+         if (ctx->Extensions.ARB_shadow) {
+            const GLenum mode = (GLenum) params[0];
+            if (mode == GL_NONE || mode == GL_COMPARE_R_TO_TEXTURE_ARB) {
+               FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+               texObj->CompareMode = mode;
+            }
+            else {
+               _mesa_error(ctx, GL_INVALID_ENUM,
+                           "glTexParameter(bad GL_TEXTURE_COMPARE_MODE_ARB: 0x%x)", mode);
+               return;
+            }
+         }
+         else {
+            _mesa_error(ctx, GL_INVALID_ENUM,
+                        "glTexParameter(pname=GL_TEXTURE_COMPARE_MODE_ARB)");
+            return;
+         }
+         break;
+      case GL_TEXTURE_COMPARE_FUNC_ARB:
+         if (ctx->Extensions.ARB_shadow) {
+            const GLenum func = (GLenum) params[0];
+            if (func == GL_LEQUAL || func == GL_GEQUAL) {
+               FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+               texObj->CompareFunc = func;
+            }
+            else if (ctx->Extensions.EXT_shadow_funcs &&
+                     (func == GL_EQUAL ||
+                      func == GL_NOTEQUAL ||
+                      func == GL_LESS ||
+                      func == GL_GREATER ||
+                      func == GL_ALWAYS ||
+                      func == GL_NEVER)) {
+               FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+               texObj->CompareFunc = func;
+            }
+            else {
+               _mesa_error(ctx, GL_INVALID_ENUM,
+                           "glTexParameter(bad GL_TEXTURE_COMPARE_FUNC_ARB)");
+               return;
+            }
+         }
+         else {
+            _mesa_error(ctx, GL_INVALID_ENUM,
+                        "glTexParameter(pname=GL_TEXTURE_COMPARE_FUNC_ARB)");
+            return;
+         }
+         break;
+      case GL_DEPTH_TEXTURE_MODE_ARB:
+         if (ctx->Extensions.ARB_depth_texture) {
+            const GLenum result = (GLenum) params[0];
+            if (result == GL_LUMINANCE || result == GL_INTENSITY
+                || result == GL_ALPHA) {
+               FLUSH_VERTICES(ctx, _NEW_TEXTURE);
+               texObj->DepthMode = result;
+            }
+            else {
+               _mesa_error(ctx, GL_INVALID_ENUM,
+                          "glTexParameter(bad GL_DEPTH_TEXTURE_MODE_ARB)");
+               return;
+            }
+         }
+         else {
+            _mesa_error(ctx, GL_INVALID_ENUM,
+                        "glTexParameter(pname=GL_DEPTH_TEXTURE_MODE_ARB)");
+            return;
+         }
+         break;
+      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_VERTICES(ctx, _NEW_TEXTURE);
+               texObj->LodBias = params[0];
+            }
+         }
+         break;
+
+      default:
+         _mesa_error(ctx, GL_INVALID_ENUM,
+                     "glTexParameter(pname=0x%x)", pname);
+         return;
+   }
+
+   texObj->_Complete = GL_FALSE;
+
+   if (ctx->Driver.TexParameter) {
+      (*ctx->Driver.TexParameter)( ctx, target, texObj, pname, params );
+   }
+}
+
+
+void GLAPIENTRY
+_mesa_TexParameteri( GLenum target, GLenum pname, GLint param )
+{
+   GLfloat fparam[4];
+   if (pname == GL_TEXTURE_PRIORITY)
+      fparam[0] = INT_TO_FLOAT(param);
+   else
+      fparam[0] = (GLfloat) param;
+   fparam[1] = fparam[2] = fparam[3] = 0.0;
+   _mesa_TexParameterfv(target, pname, fparam);
+}
+
+
+void GLAPIENTRY
+_mesa_TexParameteriv( GLenum target, GLenum pname, const GLint *params )
+{
+   GLfloat fparam[4];
+   if (pname == GL_TEXTURE_BORDER_COLOR) {
+      fparam[0] = INT_TO_FLOAT(params[0]);
+      fparam[1] = INT_TO_FLOAT(params[1]);
+      fparam[2] = INT_TO_FLOAT(params[2]);
+      fparam[3] = INT_TO_FLOAT(params[3]);
+   }
+   else {
+      if (pname == GL_TEXTURE_PRIORITY)
+         fparam[0] = INT_TO_FLOAT(params[0]);
+      else
+         fparam[0] = (GLfloat) params[0];
+      fparam[1] = fparam[2] = fparam[3] = 0.0F;
+   }
+   _mesa_TexParameterfv(target, pname, fparam);
+}
+
+
+void GLAPIENTRY
+_mesa_GetTexLevelParameterfv( GLenum target, GLint level,
+                              GLenum pname, GLfloat *params )
+{
+   GLint iparam;
+   _mesa_GetTexLevelParameteriv( target, level, pname, &iparam );
+   *params = (GLfloat) iparam;
+}
+
+
+static GLuint
+tex_image_dimensions(GLcontext *ctx, GLenum target)
+{
+   switch (target) {
+      case GL_TEXTURE_1D:
+      case GL_PROXY_TEXTURE_1D:
+         return 1;
+      case GL_TEXTURE_2D:
+      case GL_PROXY_TEXTURE_2D:
+         return 2;
+      case GL_TEXTURE_3D:
+      case GL_PROXY_TEXTURE_3D:
+         return 3;
+      case GL_TEXTURE_CUBE_MAP:
+      case GL_PROXY_TEXTURE_CUBE_MAP:
+      case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
+      case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
+      case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
+      case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
+      case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
+      case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
+         return ctx->Extensions.ARB_texture_cube_map ? 2 : 0;
+      case GL_TEXTURE_RECTANGLE_NV:
+      case GL_PROXY_TEXTURE_RECTANGLE_NV:
+         return ctx->Extensions.NV_texture_rectangle ? 2 : 0;
+      case GL_TEXTURE_1D_ARRAY_EXT:
+      case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
+         return ctx->Extensions.MESA_texture_array ? 2 : 0;
+      case GL_TEXTURE_2D_ARRAY_EXT:
+      case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
+         return ctx->Extensions.MESA_texture_array ? 3 : 0;
+      default:
+         _mesa_problem(ctx, "bad target in _mesa_tex_target_dimensions()");
+         return 0;
+   }
+}
+
+
+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;
+   GLuint dimensions;
+   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 = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+
+   /* this will catch bad target values */
+   dimensions = tex_image_dimensions(ctx, target);  /* 1, 2 or 3 */
+   if (dimensions == 0) {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(target)");
+      return;
+   }
+
+   maxLevels = _mesa_max_texture_levels(ctx, target);
+   if (maxLevels == 0) {
+      /* should not happen since <target> was just checked above */
+      _mesa_problem(ctx, "maxLevels=0 in _mesa_GetTexLevelParameter");
+      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.SGIX_depth_texture ||
+             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) {
+            *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 (ctx->Extensions.ARB_texture_compression) {
+            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)");
+            }
+         }
+         else {
+            _mesa_error(ctx, GL_INVALID_ENUM,
+                        "glGetTexLevelParameter[if]v(pname)");
+         }
+         break;
+      case GL_TEXTURE_COMPRESSED:
+         if (ctx->Extensions.ARB_texture_compression) {
+            *params = (GLint) img->IsCompressed;
+         }
+         else {
+            _mesa_error(ctx, GL_INVALID_ENUM,
+                        "glGetTexLevelParameter[if]v(pname)");
+         }
+         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 = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+
+   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 = 1;
+         break;
+      case GL_TEXTURE_COMPARE_SGIX:
+         if (ctx->Extensions.SGIX_shadow) {
+            *params = (GLfloat) obj->CompareFlag;
+         }
+	 else 
+	    error = 1;
+         break;
+      case GL_TEXTURE_COMPARE_OPERATOR_SGIX:
+         if (ctx->Extensions.SGIX_shadow) {
+            *params = (GLfloat) obj->CompareOperator;
+         }
+	 else 
+	    error = 1;
+         break;
+      case GL_SHADOW_AMBIENT_SGIX: /* aka GL_TEXTURE_COMPARE_FAIL_VALUE_ARB */
+         if (ctx->Extensions.SGIX_shadow_ambient) {
+            *params = obj->ShadowAmbient;
+         }
+	 else 
+	    error = 1;
+         break;
+      case GL_GENERATE_MIPMAP_SGIS:
+         if (ctx->Extensions.SGIS_generate_mipmap) {
+            *params = (GLfloat) obj->GenerateMipmap;
+         }
+	 else 
+	    error = 1;
+         break;
+      case GL_TEXTURE_COMPARE_MODE_ARB:
+         if (ctx->Extensions.ARB_shadow) {
+            *params = (GLfloat) obj->CompareMode;
+         }
+	 else 
+	    error = 1;
+         break;
+      case GL_TEXTURE_COMPARE_FUNC_ARB:
+         if (ctx->Extensions.ARB_shadow) {
+            *params = (GLfloat) obj->CompareFunc;
+         }
+	 else 
+	    error = 1;
+         break;
+      case GL_DEPTH_TEXTURE_MODE_ARB:
+         if (ctx->Extensions.ARB_depth_texture) {
+            *params = (GLfloat) obj->DepthMode;
+         }
+	 else 
+	    error = 1;
+         break;
+      case GL_TEXTURE_LOD_BIAS:
+         if (ctx->Extensions.EXT_texture_lod_bias) {
+            *params = obj->LodBias;
+         }
+	 else 
+	    error = 1;
+         break;
+      default:
+	 error = 1;
+	 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;
+   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 = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
+
+   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;
+         return;
+      case GL_TEXTURE_MIN_FILTER:
+         *params = (GLint) obj->MinFilter;
+         return;
+      case GL_TEXTURE_WRAP_S:
+         *params = (GLint) obj->WrapS;
+         return;
+      case GL_TEXTURE_WRAP_T:
+         *params = (GLint) obj->WrapT;
+         return;
+      case GL_TEXTURE_WRAP_R:
+         *params = (GLint) obj->WrapR;
+         return;
+      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]);
+         }
+         return;
+      case GL_TEXTURE_RESIDENT:
+         {
+            GLboolean resident;
+            if (ctx->Driver.IsTextureResident)
+               resident = ctx->Driver.IsTextureResident(ctx, obj);
+            else
+               resident = GL_TRUE;
+            *params = (GLint) resident;
+         }
+         return;
+      case GL_TEXTURE_PRIORITY:
+         *params = FLOAT_TO_INT(obj->Priority);
+         return;
+      case GL_TEXTURE_MIN_LOD:
+         *params = (GLint) obj->MinLod;
+         return;
+      case GL_TEXTURE_MAX_LOD:
+         *params = (GLint) obj->MaxLod;
+         return;
+      case GL_TEXTURE_BASE_LEVEL:
+         *params = obj->BaseLevel;
+         return;
+      case GL_TEXTURE_MAX_LEVEL:
+         *params = obj->MaxLevel;
+         return;
+      case GL_TEXTURE_MAX_ANISOTROPY_EXT:
+         if (ctx->Extensions.EXT_texture_filter_anisotropic) {
+            *params = (GLint) obj->MaxAnisotropy;
+            return;
+         }
+         break;
+      case GL_TEXTURE_COMPARE_SGIX:
+         if (ctx->Extensions.SGIX_shadow) {
+            *params = (GLint) obj->CompareFlag;
+            return;
+         }
+         break;
+      case GL_TEXTURE_COMPARE_OPERATOR_SGIX:
+         if (ctx->Extensions.SGIX_shadow) {
+            *params = (GLint) obj->CompareOperator;
+            return;
+         }
+         break;
+      case GL_SHADOW_AMBIENT_SGIX: /* aka GL_TEXTURE_COMPARE_FAIL_VALUE_ARB */
+         if (ctx->Extensions.SGIX_shadow_ambient) {
+            *params = (GLint) FLOAT_TO_INT(obj->ShadowAmbient);
+            return;
+         }
+         break;
+      case GL_GENERATE_MIPMAP_SGIS:
+         if (ctx->Extensions.SGIS_generate_mipmap) {
+            *params = (GLint) obj->GenerateMipmap;
+            return;
+         }
+         break;
+      case GL_TEXTURE_COMPARE_MODE_ARB:
+         if (ctx->Extensions.ARB_shadow) {
+            *params = (GLint) obj->CompareMode;
+            return;
+         }
+         break;
+      case GL_TEXTURE_COMPARE_FUNC_ARB:
+         if (ctx->Extensions.ARB_shadow) {
+            *params = (GLint) obj->CompareFunc;
+            return;
+         }
+         break;
+      case GL_DEPTH_TEXTURE_MODE_ARB:
+         if (ctx->Extensions.ARB_depth_texture) {
+            *params = (GLint) obj->DepthMode;
+            return;
+         }
+         break;
+      case GL_TEXTURE_LOD_BIAS:
+         if (ctx->Extensions.EXT_texture_lod_bias) {
+            *params = (GLint) obj->LodBias;
+            return;
+         }
+         break;
+      default:
+         ; /* silence warnings */
+   }
+   /* If we get here, pname was an unrecognized enum */
+   _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname=0x%x)", pname);
+}
diff --git a/src/mesa/main/texparam.h b/src/mesa/main/texparam.h
new file mode 100644
index 00000000000..454b96350ee
--- /dev/null
+++ b/src/mesa/main/texparam.h
@@ -0,0 +1,63 @@
+/*
+ * Mesa 3-D graphics library
+ * Version:  7.1
+ *
+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#ifndef TEXPARAM_H
+#define TEXPARAM_H
+
+
+#include "main/glheader.h"
+
+
+extern void GLAPIENTRY
+_mesa_GetTexLevelParameterfv( GLenum target, GLint level,
+                              GLenum pname, GLfloat *params );
+
+extern void GLAPIENTRY
+_mesa_GetTexLevelParameteriv( GLenum target, GLint level,
+                              GLenum pname, GLint *params );
+
+extern void GLAPIENTRY
+_mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params );
+
+extern void GLAPIENTRY
+_mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params );
+
+
+
+extern void GLAPIENTRY
+_mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params );
+
+extern void GLAPIENTRY
+_mesa_TexParameterf( GLenum target, GLenum pname, GLfloat param );
+
+
+extern void GLAPIENTRY
+_mesa_TexParameteri( GLenum target, GLenum pname, GLint param );
+
+extern void GLAPIENTRY
+_mesa_TexParameteriv( GLenum target, GLenum pname, const GLint *params );
+
+
+#endif /* TEXPARAM_H */
diff --git a/src/mesa/main/texstate.c b/src/mesa/main/texstate.c
index fae146bb365..336c416bece 100644
--- a/src/mesa/main/texstate.c
+++ b/src/mesa/main/texstate.c
@@ -296,1006 +296,6 @@ calculate_derived_texenv( struct gl_tex_env_combine_state *state,
 }
 
 
-/**********************************************************************/
-/*                       Texture Parameters                           */
-/**********************************************************************/
-
-/**
- * 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_VALUE, "glTexParameter(param)" );
-   return GL_FALSE;
-}
-
-
-void GLAPIENTRY
-_mesa_TexParameterf( GLenum target, GLenum pname, GLfloat param )
-{
-   _mesa_TexParameterfv(target, pname, &param);
-}
-
-
-void GLAPIENTRY
-_mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params )
-{
-   const GLenum eparam = (GLenum) (GLint) params[0];
-   struct gl_texture_unit *texUnit;
-   struct gl_texture_object *texObj;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (MESA_VERBOSE&(VERBOSE_API|VERBOSE_TEXTURE))
-      _mesa_debug(ctx, "glTexParameter %s %s %.1f(%s)...\n",
-                  _mesa_lookup_enum_by_nr(target),
-                  _mesa_lookup_enum_by_nr(pname),
-                  *params,
-		  _mesa_lookup_enum_by_nr(eparam));
-
-   if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureImageUnits) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glTexParameterfv(current unit)");
-      return;
-   }
-
-   texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
-
-   switch (target) {
-      case GL_TEXTURE_1D:
-         texObj = texUnit->Current1D;
-         break;
-      case GL_TEXTURE_2D:
-         texObj = texUnit->Current2D;
-         break;
-      case GL_TEXTURE_3D:
-         texObj = texUnit->Current3D;
-         break;
-      case GL_TEXTURE_CUBE_MAP:
-         if (!ctx->Extensions.ARB_texture_cube_map) {
-            _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(target)" );
-            return;
-         }
-         texObj = texUnit->CurrentCubeMap;
-         break;
-      case GL_TEXTURE_RECTANGLE_NV:
-         if (!ctx->Extensions.NV_texture_rectangle) {
-            _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(target)" );
-            return;
-         }
-         texObj = texUnit->CurrentRect;
-         break;
-      case GL_TEXTURE_1D_ARRAY_EXT:
-         if (!ctx->Extensions.MESA_texture_array) {
-            _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(target)" );
-            return;
-         }
-         texObj = texUnit->Current1DArray;
-         break;
-      case GL_TEXTURE_2D_ARRAY_EXT:
-         if (!ctx->Extensions.MESA_texture_array) {
-            _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(target)" );
-            return;
-         }
-         texObj = texUnit->Current2DArray;
-         break;
-      default:
-         _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(target)" );
-         return;
-   }
-
-   switch (pname) {
-      case GL_TEXTURE_MIN_FILTER:
-         /* A small optimization */
-         if (texObj->MinFilter == eparam)
-            return;
-         if (eparam==GL_NEAREST || eparam==GL_LINEAR) {
-            FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-            texObj->MinFilter = eparam;
-         }
-         else if ((eparam==GL_NEAREST_MIPMAP_NEAREST ||
-                   eparam==GL_LINEAR_MIPMAP_NEAREST ||
-                   eparam==GL_NEAREST_MIPMAP_LINEAR ||
-                   eparam==GL_LINEAR_MIPMAP_LINEAR) &&
-                  texObj->Target != GL_TEXTURE_RECTANGLE_NV) {
-            FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-            texObj->MinFilter = eparam;
-         }
-         else {
-            _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
-            return;
-         }
-         break;
-      case GL_TEXTURE_MAG_FILTER:
-         /* A small optimization */
-         if (texObj->MagFilter == eparam)
-            return;
-
-         if (eparam==GL_NEAREST || eparam==GL_LINEAR) {
-            FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-            texObj->MagFilter = eparam;
-         }
-         else {
-            _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
-            return;
-         }
-         break;
-      case GL_TEXTURE_WRAP_S:
-         if (texObj->WrapS == eparam)
-            return;
-         if (validate_texture_wrap_mode(ctx, texObj->Target, eparam)) {
-            FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-            texObj->WrapS = eparam;
-         }
-         else {
-            return;
-         }
-         break;
-      case GL_TEXTURE_WRAP_T:
-         if (texObj->WrapT == eparam)
-            return;
-         if (validate_texture_wrap_mode(ctx, texObj->Target, eparam)) {
-            FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-            texObj->WrapT = eparam;
-         }
-         else {
-            return;
-         }
-         break;
-      case GL_TEXTURE_WRAP_R:
-         if (texObj->WrapR == eparam)
-            return;
-         if (validate_texture_wrap_mode(ctx, texObj->Target, eparam)) {
-            FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-            texObj->WrapR = eparam;
-         }
-         else {
-	    return;
-         }
-         break;
-      case GL_TEXTURE_BORDER_COLOR:
-         FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-         texObj->BorderColor[RCOMP] = params[0];
-         texObj->BorderColor[GCOMP] = params[1];
-         texObj->BorderColor[BCOMP] = params[2];
-         texObj->BorderColor[ACOMP] = params[3];
-         UNCLAMPED_FLOAT_TO_CHAN(texObj->_BorderChan[RCOMP], params[0]);
-         UNCLAMPED_FLOAT_TO_CHAN(texObj->_BorderChan[GCOMP], params[1]);
-         UNCLAMPED_FLOAT_TO_CHAN(texObj->_BorderChan[BCOMP], params[2]);
-         UNCLAMPED_FLOAT_TO_CHAN(texObj->_BorderChan[ACOMP], params[3]);
-         break;
-      case GL_TEXTURE_MIN_LOD:
-         if (texObj->MinLod == params[0])
-            return;
-         FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-         texObj->MinLod = params[0];
-         break;
-      case GL_TEXTURE_MAX_LOD:
-         if (texObj->MaxLod == params[0])
-            return;
-         FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-         texObj->MaxLod = params[0];
-         break;
-      case GL_TEXTURE_BASE_LEVEL:
-         if (params[0] < 0.0) {
-            _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)");
-            return;
-         }
-         if (target == GL_TEXTURE_RECTANGLE_ARB && params[0] != 0.0) {
-            _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)");
-            return;
-         }
-         FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-         texObj->BaseLevel = (GLint) params[0];
-         break;
-      case GL_TEXTURE_MAX_LEVEL:
-         if (params[0] < 0.0) {
-            _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)");
-            return;
-         }
-         if (target == GL_TEXTURE_RECTANGLE_ARB) {
-            _mesa_error(ctx, GL_INVALID_OPERATION, "glTexParameter(param)");
-            return;
-         }
-         FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-         texObj->MaxLevel = (GLint) params[0];
-         break;
-      case GL_TEXTURE_PRIORITY:
-         FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-         texObj->Priority = CLAMP( params[0], 0.0F, 1.0F );
-         break;
-      case GL_TEXTURE_MAX_ANISOTROPY_EXT:
-         if (ctx->Extensions.EXT_texture_filter_anisotropic) {
-	    if (params[0] < 1.0) {
-	       _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
-	       return;
-	    }
-            FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-            /* clamp to max, that's what NVIDIA does */
-            texObj->MaxAnisotropy = MIN2(params[0],
-                                         ctx->Const.MaxTextureMaxAnisotropy);
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glTexParameter(pname=GL_TEXTURE_MAX_ANISOTROPY_EXT)");
-            return;
-         }
-         break;
-      case GL_TEXTURE_COMPARE_SGIX:
-         if (ctx->Extensions.SGIX_shadow) {
-            FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-            texObj->CompareFlag = params[0] ? GL_TRUE : GL_FALSE;
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glTexParameter(pname=GL_TEXTURE_COMPARE_SGIX)");
-            return;
-         }
-         break;
-      case GL_TEXTURE_COMPARE_OPERATOR_SGIX:
-         if (ctx->Extensions.SGIX_shadow) {
-            GLenum op = (GLenum) params[0];
-            if (op == GL_TEXTURE_LEQUAL_R_SGIX ||
-                op == GL_TEXTURE_GEQUAL_R_SGIX) {
-               FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-               texObj->CompareOperator = op;
-            }
-            else {
-               _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(param)");
-            }
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                    "glTexParameter(pname=GL_TEXTURE_COMPARE_OPERATOR_SGIX)");
-            return;
-         }
-         break;
-      case GL_SHADOW_AMBIENT_SGIX: /* aka GL_TEXTURE_COMPARE_FAIL_VALUE_ARB */
-         if (ctx->Extensions.SGIX_shadow_ambient) {
-            FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-            texObj->ShadowAmbient = CLAMP(params[0], 0.0F, 1.0F);
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glTexParameter(pname=GL_SHADOW_AMBIENT_SGIX)");
-            return;
-         }
-         break;
-      case GL_GENERATE_MIPMAP_SGIS:
-         if (ctx->Extensions.SGIS_generate_mipmap) {
-            FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-            texObj->GenerateMipmap = params[0] ? GL_TRUE : GL_FALSE;
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glTexParameter(pname=GL_GENERATE_MIPMAP_SGIS)");
-            return;
-         }
-         break;
-      case GL_TEXTURE_COMPARE_MODE_ARB:
-         if (ctx->Extensions.ARB_shadow) {
-            const GLenum mode = (GLenum) params[0];
-            if (mode == GL_NONE || mode == GL_COMPARE_R_TO_TEXTURE_ARB) {
-               FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-               texObj->CompareMode = mode;
-            }
-            else {
-               _mesa_error(ctx, GL_INVALID_ENUM,
-                           "glTexParameter(bad GL_TEXTURE_COMPARE_MODE_ARB: 0x%x)", mode);
-               return;
-            }
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glTexParameter(pname=GL_TEXTURE_COMPARE_MODE_ARB)");
-            return;
-         }
-         break;
-      case GL_TEXTURE_COMPARE_FUNC_ARB:
-         if (ctx->Extensions.ARB_shadow) {
-            const GLenum func = (GLenum) params[0];
-            if (func == GL_LEQUAL || func == GL_GEQUAL) {
-               FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-               texObj->CompareFunc = func;
-            }
-            else if (ctx->Extensions.EXT_shadow_funcs &&
-                     (func == GL_EQUAL ||
-                      func == GL_NOTEQUAL ||
-                      func == GL_LESS ||
-                      func == GL_GREATER ||
-                      func == GL_ALWAYS ||
-                      func == GL_NEVER)) {
-               FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-               texObj->CompareFunc = func;
-            }
-            else {
-               _mesa_error(ctx, GL_INVALID_ENUM,
-                           "glTexParameter(bad GL_TEXTURE_COMPARE_FUNC_ARB)");
-               return;
-            }
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glTexParameter(pname=GL_TEXTURE_COMPARE_FUNC_ARB)");
-            return;
-         }
-         break;
-      case GL_DEPTH_TEXTURE_MODE_ARB:
-         if (ctx->Extensions.ARB_depth_texture) {
-            const GLenum result = (GLenum) params[0];
-            if (result == GL_LUMINANCE || result == GL_INTENSITY
-                || result == GL_ALPHA) {
-               FLUSH_VERTICES(ctx, _NEW_TEXTURE);
-               texObj->DepthMode = result;
-            }
-            else {
-               _mesa_error(ctx, GL_INVALID_ENUM,
-                          "glTexParameter(bad GL_DEPTH_TEXTURE_MODE_ARB)");
-               return;
-            }
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glTexParameter(pname=GL_DEPTH_TEXTURE_MODE_ARB)");
-            return;
-         }
-         break;
-      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_VERTICES(ctx, _NEW_TEXTURE);
-               texObj->LodBias = params[0];
-            }
-         }
-         break;
-
-      default:
-         _mesa_error(ctx, GL_INVALID_ENUM,
-                     "glTexParameter(pname=0x%x)", pname);
-         return;
-   }
-
-   texObj->_Complete = GL_FALSE;
-
-   if (ctx->Driver.TexParameter) {
-      (*ctx->Driver.TexParameter)( ctx, target, texObj, pname, params );
-   }
-}
-
-
-void GLAPIENTRY
-_mesa_TexParameteri( GLenum target, GLenum pname, GLint param )
-{
-   GLfloat fparam[4];
-   if (pname == GL_TEXTURE_PRIORITY)
-      fparam[0] = INT_TO_FLOAT(param);
-   else
-      fparam[0] = (GLfloat) param;
-   fparam[1] = fparam[2] = fparam[3] = 0.0;
-   _mesa_TexParameterfv(target, pname, fparam);
-}
-
-
-void GLAPIENTRY
-_mesa_TexParameteriv( GLenum target, GLenum pname, const GLint *params )
-{
-   GLfloat fparam[4];
-   if (pname == GL_TEXTURE_BORDER_COLOR) {
-      fparam[0] = INT_TO_FLOAT(params[0]);
-      fparam[1] = INT_TO_FLOAT(params[1]);
-      fparam[2] = INT_TO_FLOAT(params[2]);
-      fparam[3] = INT_TO_FLOAT(params[3]);
-   }
-   else {
-      if (pname == GL_TEXTURE_PRIORITY)
-         fparam[0] = INT_TO_FLOAT(params[0]);
-      else
-         fparam[0] = (GLfloat) params[0];
-      fparam[1] = fparam[2] = fparam[3] = 0.0F;
-   }
-   _mesa_TexParameterfv(target, pname, fparam);
-}
-
-
-void GLAPIENTRY
-_mesa_GetTexLevelParameterfv( GLenum target, GLint level,
-                              GLenum pname, GLfloat *params )
-{
-   GLint iparam;
-   _mesa_GetTexLevelParameteriv( target, level, pname, &iparam );
-   *params = (GLfloat) iparam;
-}
-
-
-static GLuint
-tex_image_dimensions(GLcontext *ctx, GLenum target)
-{
-   switch (target) {
-      case GL_TEXTURE_1D:
-      case GL_PROXY_TEXTURE_1D:
-         return 1;
-      case GL_TEXTURE_2D:
-      case GL_PROXY_TEXTURE_2D:
-         return 2;
-      case GL_TEXTURE_3D:
-      case GL_PROXY_TEXTURE_3D:
-         return 3;
-      case GL_TEXTURE_CUBE_MAP:
-      case GL_PROXY_TEXTURE_CUBE_MAP:
-      case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
-      case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
-      case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
-      case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
-      case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
-      case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
-         return ctx->Extensions.ARB_texture_cube_map ? 2 : 0;
-      case GL_TEXTURE_RECTANGLE_NV:
-      case GL_PROXY_TEXTURE_RECTANGLE_NV:
-         return ctx->Extensions.NV_texture_rectangle ? 2 : 0;
-      case GL_TEXTURE_1D_ARRAY_EXT:
-      case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
-         return ctx->Extensions.MESA_texture_array ? 2 : 0;
-      case GL_TEXTURE_2D_ARRAY_EXT:
-      case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
-         return ctx->Extensions.MESA_texture_array ? 3 : 0;
-      default:
-         _mesa_problem(ctx, "bad target in _mesa_tex_target_dimensions()");
-         return 0;
-   }
-}
-
-
-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;
-   GLuint dimensions;
-   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 = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
-
-   /* this will catch bad target values */
-   dimensions = tex_image_dimensions(ctx, target);  /* 1, 2 or 3 */
-   if (dimensions == 0) {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(target)");
-      return;
-   }
-
-   maxLevels = _mesa_max_texture_levels(ctx, target);
-   if (maxLevels == 0) {
-      /* should not happen since <target> was just checked above */
-      _mesa_problem(ctx, "maxLevels=0 in _mesa_GetTexLevelParameter");
-      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.SGIX_depth_texture ||
-             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) {
-            *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 (ctx->Extensions.ARB_texture_compression) {
-            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)");
-            }
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glGetTexLevelParameter[if]v(pname)");
-         }
-         break;
-      case GL_TEXTURE_COMPRESSED:
-         if (ctx->Extensions.ARB_texture_compression) {
-            *params = (GLint) img->IsCompressed;
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glGetTexLevelParameter[if]v(pname)");
-         }
-         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 = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
-
-   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 = 1;
-         break;
-      case GL_TEXTURE_COMPARE_SGIX:
-         if (ctx->Extensions.SGIX_shadow) {
-            *params = (GLfloat) obj->CompareFlag;
-         }
-	 else 
-	    error = 1;
-         break;
-      case GL_TEXTURE_COMPARE_OPERATOR_SGIX:
-         if (ctx->Extensions.SGIX_shadow) {
-            *params = (GLfloat) obj->CompareOperator;
-         }
-	 else 
-	    error = 1;
-         break;
-      case GL_SHADOW_AMBIENT_SGIX: /* aka GL_TEXTURE_COMPARE_FAIL_VALUE_ARB */
-         if (ctx->Extensions.SGIX_shadow_ambient) {
-            *params = obj->ShadowAmbient;
-         }
-	 else 
-	    error = 1;
-         break;
-      case GL_GENERATE_MIPMAP_SGIS:
-         if (ctx->Extensions.SGIS_generate_mipmap) {
-            *params = (GLfloat) obj->GenerateMipmap;
-         }
-	 else 
-	    error = 1;
-         break;
-      case GL_TEXTURE_COMPARE_MODE_ARB:
-         if (ctx->Extensions.ARB_shadow) {
-            *params = (GLfloat) obj->CompareMode;
-         }
-	 else 
-	    error = 1;
-         break;
-      case GL_TEXTURE_COMPARE_FUNC_ARB:
-         if (ctx->Extensions.ARB_shadow) {
-            *params = (GLfloat) obj->CompareFunc;
-         }
-	 else 
-	    error = 1;
-         break;
-      case GL_DEPTH_TEXTURE_MODE_ARB:
-         if (ctx->Extensions.ARB_depth_texture) {
-            *params = (GLfloat) obj->DepthMode;
-         }
-	 else 
-	    error = 1;
-         break;
-      case GL_TEXTURE_LOD_BIAS:
-         if (ctx->Extensions.EXT_texture_lod_bias) {
-            *params = obj->LodBias;
-         }
-	 else 
-	    error = 1;
-         break;
-      default:
-	 error = 1;
-	 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;
-   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 = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
-
-   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;
-         return;
-      case GL_TEXTURE_MIN_FILTER:
-         *params = (GLint) obj->MinFilter;
-         return;
-      case GL_TEXTURE_WRAP_S:
-         *params = (GLint) obj->WrapS;
-         return;
-      case GL_TEXTURE_WRAP_T:
-         *params = (GLint) obj->WrapT;
-         return;
-      case GL_TEXTURE_WRAP_R:
-         *params = (GLint) obj->WrapR;
-         return;
-      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]);
-         }
-         return;
-      case GL_TEXTURE_RESIDENT:
-         {
-            GLboolean resident;
-            if (ctx->Driver.IsTextureResident)
-               resident = ctx->Driver.IsTextureResident(ctx, obj);
-            else
-               resident = GL_TRUE;
-            *params = (GLint) resident;
-         }
-         return;
-      case GL_TEXTURE_PRIORITY:
-         *params = FLOAT_TO_INT(obj->Priority);
-         return;
-      case GL_TEXTURE_MIN_LOD:
-         *params = (GLint) obj->MinLod;
-         return;
-      case GL_TEXTURE_MAX_LOD:
-         *params = (GLint) obj->MaxLod;
-         return;
-      case GL_TEXTURE_BASE_LEVEL:
-         *params = obj->BaseLevel;
-         return;
-      case GL_TEXTURE_MAX_LEVEL:
-         *params = obj->MaxLevel;
-         return;
-      case GL_TEXTURE_MAX_ANISOTROPY_EXT:
-         if (ctx->Extensions.EXT_texture_filter_anisotropic) {
-            *params = (GLint) obj->MaxAnisotropy;
-            return;
-         }
-         break;
-      case GL_TEXTURE_COMPARE_SGIX:
-         if (ctx->Extensions.SGIX_shadow) {
-            *params = (GLint) obj->CompareFlag;
-            return;
-         }
-         break;
-      case GL_TEXTURE_COMPARE_OPERATOR_SGIX:
-         if (ctx->Extensions.SGIX_shadow) {
-            *params = (GLint) obj->CompareOperator;
-            return;
-         }
-         break;
-      case GL_SHADOW_AMBIENT_SGIX: /* aka GL_TEXTURE_COMPARE_FAIL_VALUE_ARB */
-         if (ctx->Extensions.SGIX_shadow_ambient) {
-            *params = (GLint) FLOAT_TO_INT(obj->ShadowAmbient);
-            return;
-         }
-         break;
-      case GL_GENERATE_MIPMAP_SGIS:
-         if (ctx->Extensions.SGIS_generate_mipmap) {
-            *params = (GLint) obj->GenerateMipmap;
-            return;
-         }
-         break;
-      case GL_TEXTURE_COMPARE_MODE_ARB:
-         if (ctx->Extensions.ARB_shadow) {
-            *params = (GLint) obj->CompareMode;
-            return;
-         }
-         break;
-      case GL_TEXTURE_COMPARE_FUNC_ARB:
-         if (ctx->Extensions.ARB_shadow) {
-            *params = (GLint) obj->CompareFunc;
-            return;
-         }
-         break;
-      case GL_DEPTH_TEXTURE_MODE_ARB:
-         if (ctx->Extensions.ARB_depth_texture) {
-            *params = (GLint) obj->DepthMode;
-            return;
-         }
-         break;
-      case GL_TEXTURE_LOD_BIAS:
-         if (ctx->Extensions.EXT_texture_lod_bias) {
-            *params = (GLint) obj->LodBias;
-            return;
-         }
-         break;
-      default:
-         ; /* silence warnings */
-   }
-   /* If we get here, pname was an unrecognized enum */
-   _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname=0x%x)", pname);
-}
-
 
 
 /* GL_ARB_multitexture */
diff --git a/src/mesa/main/texstate.h b/src/mesa/main/texstate.h
index 781d6ff9464..a7d7088c621 100644
--- a/src/mesa/main/texstate.h
+++ b/src/mesa/main/texstate.h
@@ -48,35 +48,6 @@ _mesa_print_texunit_state( GLcontext *ctx, GLuint unit );
  */
 /*@{*/
 
-extern void GLAPIENTRY
-_mesa_GetTexLevelParameterfv( GLenum target, GLint level,
-                              GLenum pname, GLfloat *params );
-
-extern void GLAPIENTRY
-_mesa_GetTexLevelParameteriv( GLenum target, GLint level,
-                              GLenum pname, GLint *params );
-
-extern void GLAPIENTRY
-_mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params );
-
-extern void GLAPIENTRY
-_mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params );
-
-
-
-extern void GLAPIENTRY
-_mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params );
-
-extern void GLAPIENTRY
-_mesa_TexParameterf( GLenum target, GLenum pname, GLfloat param );
-
-
-extern void GLAPIENTRY
-_mesa_TexParameteri( GLenum target, GLenum pname, GLint param );
-
-extern void GLAPIENTRY
-_mesa_TexParameteriv( GLenum target, GLenum pname, const GLint *params );
-
 
 /*
  * GL_ARB_multitexture
diff --git a/src/mesa/sources b/src/mesa/sources
index dc287f02a6a..fd0d51e8bde 100644
--- a/src/mesa/sources
+++ b/src/mesa/sources
@@ -67,6 +67,7 @@ MAIN_SOURCES = \
 	main/texgen.c \
 	main/teximage.c \
 	main/texobj.c \
+	main/texparam.c \
 	main/texrender.c \
 	main/texstate.c \
 	main/texstore.c \