mesa git update 30 Mar 2011

1 files changed, 1459 insertions, 1707 deletions

diff --git a/mesalib/src/mesa/main/uniforms.c b/mesalib/src/mesa/main/uniforms.c
index 523b8e1a9..f984ce3bc 100644
--- a/mesalib/src/mesa/main/uniforms.c
+++ b/mesalib/src/mesa/main/uniforms.c
@@ -1,1707 +1,1459 @@
-/*

- * Mesa 3-D graphics library

- *

- * Copyright (C) 2004-2008  Brian Paul   All Rights Reserved.

- * Copyright (C) 2009-2010  VMware, Inc.  All Rights Reserved.

- * Copyright © 2010 Intel Corporation

- *

- * 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 uniforms.c

- * Functions related to GLSL uniform variables.

- * \author Brian Paul

- */

-

-/**

- * XXX things to do:

- * 1. Check that the right error code is generated for all _mesa_error() calls.

- * 2. Insert FLUSH_VERTICES calls in various places

- */

-

-

-#include "main/glheader.h"

-#include "main/context.h"

-#include "main/dispatch.h"

-#include "main/mfeatures.h"

-#include "main/mtypes.h"

-#include "main/shaderapi.h"

-#include "main/shaderobj.h"

-#include "main/uniforms.h"

-#include "program/prog_parameter.h"

-#include "program/prog_statevars.h"

-#include "program/prog_uniform.h"

-#include "program/prog_instruction.h"

-

-

-static GLenum

-base_uniform_type(GLenum type)

-{

-   switch (type) {

-#if 0 /* not needed, for now */

-   case GL_BOOL:

-   case GL_BOOL_VEC2:

-   case GL_BOOL_VEC3:

-   case GL_BOOL_VEC4:

-      return GL_BOOL;

-#endif

-   case GL_FLOAT:

-   case GL_FLOAT_VEC2:

-   case GL_FLOAT_VEC3:

-   case GL_FLOAT_VEC4:

-      return GL_FLOAT;

-   case GL_UNSIGNED_INT:

-   case GL_UNSIGNED_INT_VEC2:

-   case GL_UNSIGNED_INT_VEC3:

-   case GL_UNSIGNED_INT_VEC4:

-      return GL_UNSIGNED_INT;

-   case GL_INT:

-   case GL_INT_VEC2:

-   case GL_INT_VEC3:

-   case GL_INT_VEC4:

-      return GL_INT;

-   default:

-      _mesa_problem(NULL, "Invalid type in base_uniform_type()");

-      return GL_FLOAT;

-   }

-}

-

-static struct gl_builtin_uniform_element gl_DepthRange_elements[] = {

-   {"near", {STATE_DEPTH_RANGE, 0, 0}, SWIZZLE_XXXX},

-   {"far", {STATE_DEPTH_RANGE, 0, 0}, SWIZZLE_YYYY},

-   {"diff", {STATE_DEPTH_RANGE, 0, 0}, SWIZZLE_ZZZZ},

-};

-

-static struct gl_builtin_uniform_element gl_ClipPlane_elements[] = {

-   {NULL, {STATE_CLIPPLANE, 0, 0}, SWIZZLE_XYZW}

-};

-

-static struct gl_builtin_uniform_element gl_Point_elements[] = {

-   {"size", {STATE_POINT_SIZE}, SWIZZLE_XXXX},

-   {"sizeMin", {STATE_POINT_SIZE}, SWIZZLE_YYYY},

-   {"sizeMax", {STATE_POINT_SIZE}, SWIZZLE_ZZZZ},

-   {"fadeThresholdSize", {STATE_POINT_SIZE}, SWIZZLE_WWWW},

-   {"distanceConstantAttenuation", {STATE_POINT_ATTENUATION}, SWIZZLE_XXXX},

-   {"distanceLinearAttenuation", {STATE_POINT_ATTENUATION}, SWIZZLE_YYYY},

-   {"distanceQuadraticAttenuation", {STATE_POINT_ATTENUATION}, SWIZZLE_ZZZZ},

-};

-

-static struct gl_builtin_uniform_element gl_FrontMaterial_elements[] = {

-   {"emission", {STATE_MATERIAL, 0, STATE_EMISSION}, SWIZZLE_XYZW},

-   {"ambient", {STATE_MATERIAL, 0, STATE_AMBIENT}, SWIZZLE_XYZW},

-   {"diffuse", {STATE_MATERIAL, 0, STATE_DIFFUSE}, SWIZZLE_XYZW},

-   {"specular", {STATE_MATERIAL, 0, STATE_SPECULAR}, SWIZZLE_XYZW},

-   {"shininess", {STATE_MATERIAL, 0, STATE_SHININESS}, SWIZZLE_XXXX},

-};

-

-static struct gl_builtin_uniform_element gl_BackMaterial_elements[] = {

-   {"emission", {STATE_MATERIAL, 1, STATE_EMISSION}, SWIZZLE_XYZW},

-   {"ambient", {STATE_MATERIAL, 1, STATE_AMBIENT}, SWIZZLE_XYZW},

-   {"diffuse", {STATE_MATERIAL, 1, STATE_DIFFUSE}, SWIZZLE_XYZW},

-   {"specular", {STATE_MATERIAL, 1, STATE_SPECULAR}, SWIZZLE_XYZW},

-   {"shininess", {STATE_MATERIAL, 1, STATE_SHININESS}, SWIZZLE_XXXX},

-};

-

-static struct gl_builtin_uniform_element gl_LightSource_elements[] = {

-   {"ambient", {STATE_LIGHT, 0, STATE_AMBIENT}, SWIZZLE_XYZW},

-   {"diffuse", {STATE_LIGHT, 0, STATE_DIFFUSE}, SWIZZLE_XYZW},

-   {"specular", {STATE_LIGHT, 0, STATE_SPECULAR}, SWIZZLE_XYZW},

-   {"position", {STATE_LIGHT, 0, STATE_POSITION}, SWIZZLE_XYZW},

-   {"halfVector", {STATE_LIGHT, 0, STATE_HALF_VECTOR}, SWIZZLE_XYZW},

-   {"spotDirection", {STATE_LIGHT, 0, STATE_SPOT_DIRECTION},

-    MAKE_SWIZZLE4(SWIZZLE_X,

-		  SWIZZLE_Y,

-		  SWIZZLE_Z,

-		  SWIZZLE_Z)},

-   {"spotCosCutoff", {STATE_LIGHT, 0, STATE_SPOT_DIRECTION}, SWIZZLE_WWWW},

-   {"spotCutoff", {STATE_LIGHT, 0, STATE_SPOT_CUTOFF}, SWIZZLE_XXXX},

-   {"spotExponent", {STATE_LIGHT, 0, STATE_ATTENUATION}, SWIZZLE_WWWW},

-   {"constantAttenuation", {STATE_LIGHT, 0, STATE_ATTENUATION}, SWIZZLE_XXXX},

-   {"linearAttenuation", {STATE_LIGHT, 0, STATE_ATTENUATION}, SWIZZLE_YYYY},

-   {"quadraticAttenuation", {STATE_LIGHT, 0, STATE_ATTENUATION}, SWIZZLE_ZZZZ},

-};

-

-static struct gl_builtin_uniform_element gl_LightModel_elements[] = {

-   {"ambient", {STATE_LIGHTMODEL_AMBIENT, 0}, SWIZZLE_XYZW},

-};

-

-static struct gl_builtin_uniform_element gl_FrontLightModelProduct_elements[] = {

-   {"sceneColor", {STATE_LIGHTMODEL_SCENECOLOR, 0}, SWIZZLE_XYZW},

-};

-

-static struct gl_builtin_uniform_element gl_BackLightModelProduct_elements[] = {

-   {"sceneColor", {STATE_LIGHTMODEL_SCENECOLOR, 1}, SWIZZLE_XYZW},

-};

-

-static struct gl_builtin_uniform_element gl_FrontLightProduct_elements[] = {

-   {"ambient", {STATE_LIGHTPROD, 0, 0, STATE_AMBIENT}, SWIZZLE_XYZW},

-   {"diffuse", {STATE_LIGHTPROD, 0, 0, STATE_DIFFUSE}, SWIZZLE_XYZW},

-   {"specular", {STATE_LIGHTPROD, 0, 0, STATE_SPECULAR}, SWIZZLE_XYZW},

-};

-

-static struct gl_builtin_uniform_element gl_BackLightProduct_elements[] = {

-   {"ambient", {STATE_LIGHTPROD, 0, 1, STATE_AMBIENT}, SWIZZLE_XYZW},

-   {"diffuse", {STATE_LIGHTPROD, 0, 1, STATE_DIFFUSE}, SWIZZLE_XYZW},

-   {"specular", {STATE_LIGHTPROD, 0, 1, STATE_SPECULAR}, SWIZZLE_XYZW},

-};

-

-static struct gl_builtin_uniform_element gl_TextureEnvColor_elements[] = {

-   {NULL, {STATE_TEXENV_COLOR, 0}, SWIZZLE_XYZW},

-};

-

-static struct gl_builtin_uniform_element gl_EyePlaneS_elements[] = {

-   {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_EYE_S}, SWIZZLE_XYZW},

-};

-

-static struct gl_builtin_uniform_element gl_EyePlaneT_elements[] = {

-   {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_EYE_T}, SWIZZLE_XYZW},

-};

-

-static struct gl_builtin_uniform_element gl_EyePlaneR_elements[] = {

-   {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_EYE_R}, SWIZZLE_XYZW},

-};

-

-static struct gl_builtin_uniform_element gl_EyePlaneQ_elements[] = {

-   {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_EYE_Q}, SWIZZLE_XYZW},

-};

-

-static struct gl_builtin_uniform_element gl_ObjectPlaneS_elements[] = {

-   {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_OBJECT_S}, SWIZZLE_XYZW},

-};

-

-static struct gl_builtin_uniform_element gl_ObjectPlaneT_elements[] = {

-   {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_OBJECT_T}, SWIZZLE_XYZW},

-};

-

-static struct gl_builtin_uniform_element gl_ObjectPlaneR_elements[] = {

-   {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_OBJECT_R}, SWIZZLE_XYZW},

-};

-

-static struct gl_builtin_uniform_element gl_ObjectPlaneQ_elements[] = {

-   {NULL, {STATE_TEXGEN, 0, STATE_TEXGEN_OBJECT_Q}, SWIZZLE_XYZW},

-};

-

-static struct gl_builtin_uniform_element gl_Fog_elements[] = {

-   {"color", {STATE_FOG_COLOR}, SWIZZLE_XYZW},

-   {"density", {STATE_FOG_PARAMS}, SWIZZLE_XXXX},

-   {"start", {STATE_FOG_PARAMS}, SWIZZLE_YYYY},

-   {"end", {STATE_FOG_PARAMS}, SWIZZLE_ZZZZ},

-   {"scale", {STATE_FOG_PARAMS}, SWIZZLE_WWWW},

-};

-

-static struct gl_builtin_uniform_element gl_NormalScale_elements[] = {

-   {NULL, {STATE_NORMAL_SCALE}, SWIZZLE_XXXX},

-};

-

-static struct gl_builtin_uniform_element gl_MESABumpRotMatrix0_elements[] = {

-   {NULL, {STATE_INTERNAL, STATE_ROT_MATRIX_0}, SWIZZLE_XYZW},

-};

-

-static struct gl_builtin_uniform_element gl_MESABumpRotMatrix1_elements[] = {

-   {NULL, {STATE_INTERNAL, STATE_ROT_MATRIX_1}, SWIZZLE_XYZW},

-};

-

-static struct gl_builtin_uniform_element gl_MESAFogParamsOptimized_elements[] = {

-   {NULL, {STATE_INTERNAL, STATE_FOG_PARAMS_OPTIMIZED}, SWIZZLE_XYZW},

-};

-

-#define MATRIX(name, statevar, modifier)				\

-   static struct gl_builtin_uniform_element name ## _elements[] = {	\

-      { NULL, { statevar, 0, 0, 0, modifier}, SWIZZLE_XYZW },		\

-      { NULL, { statevar, 0, 1, 1, modifier}, SWIZZLE_XYZW },		\

-      { NULL, { statevar, 0, 2, 2, modifier}, SWIZZLE_XYZW },		\

-      { NULL, { statevar, 0, 3, 3, modifier}, SWIZZLE_XYZW },		\

-   }

-

-MATRIX(gl_ModelViewMatrix,

-       STATE_MODELVIEW_MATRIX, STATE_MATRIX_TRANSPOSE);

-MATRIX(gl_ModelViewMatrixInverse,

-       STATE_MODELVIEW_MATRIX, STATE_MATRIX_INVTRANS);

-MATRIX(gl_ModelViewMatrixTranspose,

-       STATE_MODELVIEW_MATRIX, 0);

-MATRIX(gl_ModelViewMatrixInverseTranspose,

-       STATE_MODELVIEW_MATRIX, STATE_MATRIX_INVERSE);

-

-MATRIX(gl_ProjectionMatrix,

-       STATE_PROJECTION_MATRIX, STATE_MATRIX_TRANSPOSE);

-MATRIX(gl_ProjectionMatrixInverse,

-       STATE_PROJECTION_MATRIX, STATE_MATRIX_INVTRANS);

-MATRIX(gl_ProjectionMatrixTranspose,

-       STATE_PROJECTION_MATRIX, 0);

-MATRIX(gl_ProjectionMatrixInverseTranspose,

-       STATE_PROJECTION_MATRIX, STATE_MATRIX_INVERSE);

-

-MATRIX(gl_ModelViewProjectionMatrix,

-       STATE_MVP_MATRIX, STATE_MATRIX_TRANSPOSE);

-MATRIX(gl_ModelViewProjectionMatrixInverse,

-       STATE_MVP_MATRIX, STATE_MATRIX_INVTRANS);

-MATRIX(gl_ModelViewProjectionMatrixTranspose,

-       STATE_MVP_MATRIX, 0);

-MATRIX(gl_ModelViewProjectionMatrixInverseTranspose,

-       STATE_MVP_MATRIX, STATE_MATRIX_INVERSE);

-

-MATRIX(gl_TextureMatrix,

-       STATE_TEXTURE_MATRIX, STATE_MATRIX_TRANSPOSE);

-MATRIX(gl_TextureMatrixInverse,

-       STATE_TEXTURE_MATRIX, STATE_MATRIX_INVTRANS);

-MATRIX(gl_TextureMatrixTranspose,

-       STATE_TEXTURE_MATRIX, 0);

-MATRIX(gl_TextureMatrixInverseTranspose,

-       STATE_TEXTURE_MATRIX, STATE_MATRIX_INVERSE);

-

-static struct gl_builtin_uniform_element gl_NormalMatrix_elements[] = {

-   { NULL, { STATE_MODELVIEW_MATRIX, 0, 0, 0, STATE_MATRIX_INVERSE},

-     SWIZZLE_XYZW },

-   { NULL, { STATE_MODELVIEW_MATRIX, 0, 1, 1, STATE_MATRIX_INVERSE},

-     SWIZZLE_XYZW },

-   { NULL, { STATE_MODELVIEW_MATRIX, 0, 2, 2, STATE_MATRIX_INVERSE},

-     SWIZZLE_XYZW },

-};

-

-#undef MATRIX

-

-#define STATEVAR(name) {#name, name ## _elements, Elements(name ## _elements)}

-

-const struct gl_builtin_uniform_desc _mesa_builtin_uniform_desc[] = {

-   STATEVAR(gl_DepthRange),

-   STATEVAR(gl_ClipPlane),

-   STATEVAR(gl_Point),

-   STATEVAR(gl_FrontMaterial),

-   STATEVAR(gl_BackMaterial),

-   STATEVAR(gl_LightSource),

-   STATEVAR(gl_LightModel),

-   STATEVAR(gl_FrontLightModelProduct),

-   STATEVAR(gl_BackLightModelProduct),

-   STATEVAR(gl_FrontLightProduct),

-   STATEVAR(gl_BackLightProduct),

-   STATEVAR(gl_TextureEnvColor),

-   STATEVAR(gl_EyePlaneS),

-   STATEVAR(gl_EyePlaneT),

-   STATEVAR(gl_EyePlaneR),

-   STATEVAR(gl_EyePlaneQ),

-   STATEVAR(gl_ObjectPlaneS),

-   STATEVAR(gl_ObjectPlaneT),

-   STATEVAR(gl_ObjectPlaneR),

-   STATEVAR(gl_ObjectPlaneQ),

-   STATEVAR(gl_Fog),

-

-   STATEVAR(gl_ModelViewMatrix),

-   STATEVAR(gl_ModelViewMatrixInverse),

-   STATEVAR(gl_ModelViewMatrixTranspose),

-   STATEVAR(gl_ModelViewMatrixInverseTranspose),

-

-   STATEVAR(gl_ProjectionMatrix),

-   STATEVAR(gl_ProjectionMatrixInverse),

-   STATEVAR(gl_ProjectionMatrixTranspose),

-   STATEVAR(gl_ProjectionMatrixInverseTranspose),

-

-   STATEVAR(gl_ModelViewProjectionMatrix),

-   STATEVAR(gl_ModelViewProjectionMatrixInverse),

-   STATEVAR(gl_ModelViewProjectionMatrixTranspose),

-   STATEVAR(gl_ModelViewProjectionMatrixInverseTranspose),

-

-   STATEVAR(gl_TextureMatrix),

-   STATEVAR(gl_TextureMatrixInverse),

-   STATEVAR(gl_TextureMatrixTranspose),

-   STATEVAR(gl_TextureMatrixInverseTranspose),

-

-   STATEVAR(gl_NormalMatrix),

-   STATEVAR(gl_NormalScale),

-

-   STATEVAR(gl_MESABumpRotMatrix0),

-   STATEVAR(gl_MESABumpRotMatrix1),

-   STATEVAR(gl_MESAFogParamsOptimized),

-

-   {NULL, NULL, 0}

-};

-

-static GLboolean

-is_boolean_type(GLenum type)

-{

-   switch (type) {

-   case GL_BOOL:

-   case GL_BOOL_VEC2:

-   case GL_BOOL_VEC3:

-   case GL_BOOL_VEC4:

-      return GL_TRUE;

-   default:

-      return GL_FALSE;

-   }

-}

-

-

-static GLboolean

-is_sampler_type(GLenum type)

-{

-   switch (type) {

-   case GL_SAMPLER_1D:

-   case GL_SAMPLER_2D:

-   case GL_SAMPLER_3D:

-   case GL_SAMPLER_CUBE:

-   case GL_SAMPLER_1D_SHADOW:

-   case GL_SAMPLER_2D_SHADOW:

-   case GL_SAMPLER_2D_RECT_ARB:

-   case GL_SAMPLER_2D_RECT_SHADOW_ARB:

-   case GL_SAMPLER_1D_ARRAY_EXT:

-   case GL_SAMPLER_2D_ARRAY_EXT:

-   case GL_SAMPLER_1D_ARRAY_SHADOW_EXT:

-   case GL_SAMPLER_2D_ARRAY_SHADOW_EXT:

-      return GL_TRUE;

-   default:

-      return GL_FALSE;

-   }

-}

-

-

-static struct gl_program_parameter *

-get_uniform_parameter(const struct gl_shader_program *shProg, GLuint index)

-{

-   const struct gl_program *prog = NULL;

-   GLint progPos;

-

-   progPos = shProg->Uniforms->Uniforms[index].VertPos;

-   if (progPos >= 0) {

-      prog = &shProg->VertexProgram->Base;

-   }

-   else {

-      progPos = shProg->Uniforms->Uniforms[index].FragPos;

-      if (progPos >= 0) {

-         prog = &shProg->FragmentProgram->Base;

-      } else {

-         progPos = shProg->Uniforms->Uniforms[index].GeomPos;

-         if (progPos >= 0) {

-            prog = &shProg->GeometryProgram->Base;

-         }

-      }

-   }

-

-   if (!prog || progPos < 0)

-      return NULL; /* should never happen */

-

-   return &prog->Parameters->Parameters[progPos];

-}

-

-

-/**

- * Called by glGetActiveUniform().

- */

-static void

-_mesa_get_active_uniform(struct gl_context *ctx, GLuint program, GLuint index,

-                         GLsizei maxLength, GLsizei *length, GLint *size,

-                         GLenum *type, GLchar *nameOut)

-{

-   const struct gl_shader_program *shProg;

-   const struct gl_program *prog = NULL;

-   const struct gl_program_parameter *param;

-   GLint progPos;

-

-   shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveUniform");

-   if (!shProg)

-      return;

-

-   if (!shProg->Uniforms || index >= shProg->Uniforms->NumUniforms) {

-      _mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveUniform(index)");

-      return;

-   }

-

-   progPos = shProg->Uniforms->Uniforms[index].VertPos;

-   if (progPos >= 0) {

-      prog = &shProg->VertexProgram->Base;

-   }

-   else {

-      progPos = shProg->Uniforms->Uniforms[index].FragPos;

-      if (progPos >= 0) {

-         prog = &shProg->FragmentProgram->Base;

-      } else {

-         progPos = shProg->Uniforms->Uniforms[index].GeomPos;

-         if (progPos >= 0) {

-            prog = &shProg->GeometryProgram->Base;

-         }

-      }

-   }

-

-   if (!prog || progPos < 0)

-      return; /* should never happen */

-

-   ASSERT(progPos < prog->Parameters->NumParameters);

-   param = &prog->Parameters->Parameters[progPos];

-

-   if (nameOut) {

-      _mesa_copy_string(nameOut, maxLength, length, param->Name);

-   }

-

-   if (size) {

-      GLint typeSize = _mesa_sizeof_glsl_type(param->DataType);

-      if ((GLint) param->Size > typeSize) {

-         /* This is an array.

-          * Array elements are placed on vector[4] boundaries so they're

-          * a multiple of four floats.  We round typeSize up to next multiple

-          * of four to get the right size below.

-          */

-         typeSize = (typeSize + 3) & ~3;

-      }

-      /* Note that the returned size is in units of the <type>, not bytes */

-      *size = param->Size / typeSize;

-   }

-

-   if (type) {

-      *type = param->DataType;

-   }

-}

-

-

-static unsigned

-get_vector_elements(GLenum type)

-{

-   switch (type) {

-   case GL_FLOAT:

-   case GL_INT:

-   case GL_BOOL:

-   case GL_UNSIGNED_INT:

-   default: /* Catch all the various sampler types. */

-      return 1;

-

-   case GL_FLOAT_VEC2:

-   case GL_INT_VEC2:

-   case GL_BOOL_VEC2:

-   case GL_UNSIGNED_INT_VEC2:

-      return 2;

-

-   case GL_FLOAT_VEC3:

-   case GL_INT_VEC3:

-   case GL_BOOL_VEC3:

-   case GL_UNSIGNED_INT_VEC3:

-      return 3;

-

-   case GL_FLOAT_VEC4:

-   case GL_INT_VEC4:

-   case GL_BOOL_VEC4:

-   case GL_UNSIGNED_INT_VEC4:

-      return 4;

-   }

-}

-

-static void

-get_matrix_dims(GLenum type, GLint *rows, GLint *cols)

-{

-   switch (type) {

-   case GL_FLOAT_MAT2:

-      *rows = *cols = 2;

-      break;

-   case GL_FLOAT_MAT2x3:

-      *rows = 3;

-      *cols = 2;

-      break;

-   case GL_FLOAT_MAT2x4:

-      *rows = 4;

-      *cols = 2;

-      break;

-   case GL_FLOAT_MAT3:

-      *rows = 3;

-      *cols = 3;

-      break;

-   case GL_FLOAT_MAT3x2:

-      *rows = 2;

-      *cols = 3;

-      break;

-   case GL_FLOAT_MAT3x4:

-      *rows = 4;

-      *cols = 3;

-      break;

-   case GL_FLOAT_MAT4:

-      *rows = 4;

-      *cols = 4;

-      break;

-   case GL_FLOAT_MAT4x2:

-      *rows = 2;

-      *cols = 4;

-      break;

-   case GL_FLOAT_MAT4x3:

-      *rows = 3;

-      *cols = 4;

-      break;

-   default:

-      *rows = *cols = 0;

-   }

-}

-

-

-/**

- * Determine the number of rows and columns occupied by a uniform

- * according to its datatype.  For non-matrix types (such as GL_FLOAT_VEC4),

- * the number of rows = 1 and cols = number of elements in the vector.

- */

-static void

-get_uniform_rows_cols(const struct gl_program_parameter *p,

-                      GLint *rows, GLint *cols)

-{

-   get_matrix_dims(p->DataType, rows, cols);

-   if (*rows == 0 && *cols == 0) {

-      /* not a matrix type, probably a float or vector */

-      *rows = 1;

-      *cols = get_vector_elements(p->DataType);

-   }

-}

-

-

-/**

- * Helper for get_uniform[fi]v() functions.

- * Given a shader program name and uniform location, return a pointer

- * to the shader program and return the program parameter position.

- */

-static void

-lookup_uniform_parameter(struct gl_context *ctx, GLuint program, GLint location,

-                         struct gl_program **progOut, GLint *paramPosOut)

-{

-   struct gl_shader_program *shProg

-      = _mesa_lookup_shader_program_err(ctx, program, "glGetUniform[if]v");

-   struct gl_program *prog = NULL;

-   GLint progPos = -1;

-

-   /* if shProg is NULL, we'll have already recorded an error */

-

-   if (shProg) {

-      if (!shProg->Uniforms ||

-          location < 0 ||

-          location >= (GLint) shProg->Uniforms->NumUniforms) {

-         _mesa_error(ctx, GL_INVALID_OPERATION,  "glGetUniformfv(location)");

-      }

-      else {

-         /* OK, find the gl_program and program parameter location */

-         progPos = shProg->Uniforms->Uniforms[location].VertPos;

-         if (progPos >= 0) {

-            prog = &shProg->VertexProgram->Base;

-         }

-         else {

-            progPos = shProg->Uniforms->Uniforms[location].FragPos;

-            if (progPos >= 0) {

-               prog = &shProg->FragmentProgram->Base;

-            } else {

-               progPos = shProg->Uniforms->Uniforms[location].GeomPos;

-               if (progPos >= 0) {

-                  prog = &shProg->GeometryProgram->Base;

-               }

-            }

-         }

-      }

-   }

-

-   *progOut = prog;

-   *paramPosOut = progPos;

-}

-

-

-/**

- * GLGL uniform arrays and structs require special handling.

- *

- * The GL_ARB_shader_objects spec says that if you use

- * glGetUniformLocation to get the location of an array, you CANNOT

- * access other elements of the array by adding an offset to the

- * returned location.  For example, you must call

- * glGetUniformLocation("foo[16]") if you want to set the 16th element

- * of the array with glUniform().

- *

- * HOWEVER, some other OpenGL drivers allow accessing array elements

- * by adding an offset to the returned array location.  And some apps

- * seem to depend on that behaviour.

- *

- * Mesa's gl_uniform_list doesn't directly support this since each

- * entry in the list describes one uniform variable, not one uniform

- * element.  We could insert dummy entries in the list for each array

- * element after [0] but that causes complications elsewhere.

- *

- * We solve this problem by encoding two values in the location that's

- * returned by glGetUniformLocation():

- *  a) index into gl_uniform_list::Uniforms[] for the uniform

- *  b) an array/field offset (0 for simple types)

- *

- * These two values are encoded in the high and low halves of a GLint.

- * By putting the uniform number in the high part and the offset in the

- * low part, we can support the unofficial ability to index into arrays

- * by adding offsets to the location value.

- */

-static void

-merge_location_offset(GLint *location, GLint offset)

-{

-   *location = (*location << 16) | offset;

-}

-

-

-/**

- * Separate the uniform location and parameter offset.  See above.

- */

-static void

-split_location_offset(GLint *location, GLint *offset)

-{

-   *offset = *location & 0xffff;

-   *location = *location >> 16;

-}

-

-

-

-/**

- * Called via glGetUniformfv().

- */

-static void

-_mesa_get_uniformfv(struct gl_context *ctx, GLuint program, GLint location,

-                    GLfloat *params)

-{

-   struct gl_program *prog;

-   GLint paramPos;

-   GLint offset;

-

-   split_location_offset(&location, &offset);

-

-   lookup_uniform_parameter(ctx, program, location, &prog, &paramPos);

-

-   if (prog) {

-      const struct gl_program_parameter *p =

-         &prog->Parameters->Parameters[paramPos];

-      GLint rows, cols, i, j, k;

-

-      get_uniform_rows_cols(p, &rows, &cols);

-

-      k = 0;

-      for (i = 0; i < rows; i++) {

-	 const int base = paramPos + offset + i;

-

-         for (j = 0; j < cols; j++ ) {

-            params[k++] = prog->Parameters->ParameterValues[base][j];

-         }

-      }

-   }

-}

-

-

-/**

- * Called via glGetUniformiv().

- * \sa _mesa_get_uniformfv, only difference is a cast.

- */

-static void

-_mesa_get_uniformiv(struct gl_context *ctx, GLuint program, GLint location,

-                    GLint *params)

-{

-   struct gl_program *prog;

-   GLint paramPos;

-   GLint offset;

-

-   split_location_offset(&location, &offset);

-

-   lookup_uniform_parameter(ctx, program, location, &prog, &paramPos);

-

-   if (prog) {

-      const struct gl_program_parameter *p =

-         &prog->Parameters->Parameters[paramPos];

-      GLint rows, cols, i, j, k;

-

-      get_uniform_rows_cols(p, &rows, &cols);

-

-      k = 0;

-      for (i = 0; i < rows; i++) {

-	 const int base = paramPos + offset + i;

-

-         for (j = 0; j < cols; j++ ) {

-            params[k++] = (GLint) prog->Parameters->ParameterValues[base][j];

-         }

-      }

-   }

-}

-

-

-/**

- * Called via glGetUniformuiv().

- * New in GL_EXT_gpu_shader4, OpenGL 3.0

- * \sa _mesa_get_uniformfv, only difference is a cast.

- */

-static void

-_mesa_get_uniformuiv(struct gl_context *ctx, GLuint program, GLint location,

-                     GLuint *params)

-{

-   struct gl_program *prog;

-   GLint paramPos;

-   GLint offset;

-

-   split_location_offset(&location, &offset);

-

-   lookup_uniform_parameter(ctx, program, location, &prog, &paramPos);

-

-   if (prog) {

-      const struct gl_program_parameter *p =

-         &prog->Parameters->Parameters[paramPos];

-      GLint rows, cols, i, j, k;

-

-      get_uniform_rows_cols(p, &rows, &cols);

-

-      k = 0;

-      for (i = 0; i < rows; i++) {

-	 const int base = paramPos + offset + i;

-

-         for (j = 0; j < cols; j++ ) {

-            params[k++] = (GLuint) prog->Parameters->ParameterValues[base][j];

-         }

-      }

-   }

-}

-

-

-/**

- * Called via glGetUniformLocation().

- *

- * The return value will encode two values, the uniform location and an

- * offset (used for arrays, structs).

- */

-GLint

-_mesa_get_uniform_location(struct gl_context *ctx, struct gl_shader_program *shProg,

-			   const GLchar *name)

-{

-   GLint offset = 0, location = -1;

-

-   if (shProg->LinkStatus == GL_FALSE) {

-      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetUniformfv(program)");

-      return -1;

-   }

-

-   /* XXX we should return -1 if the uniform was declared, but not

-    * actually used.

-    */

-

-   /* XXX we need to be able to parse uniform names for structs and arrays

-    * such as:

-    *   mymatrix[1]

-    *   mystruct.field1

-    */

-

-   {

-      /* handle 1-dimension arrays here... */

-      char *c = strchr(name, '[');

-      if (c) {

-         /* truncate name at [ */

-         const GLint len = c - name;

-         GLchar *newName = malloc(len + 1);

-         if (!newName)

-            return -1; /* out of mem */

-         memcpy(newName, name, len);

-         newName[len] = 0;

-

-         location = _mesa_lookup_uniform(shProg->Uniforms, newName);

-         if (location >= 0) {

-            const GLint element = atoi(c + 1);

-            if (element > 0) {

-               /* get type of the uniform array element */

-               struct gl_program_parameter *p;

-               p = get_uniform_parameter(shProg, location);

-               if (p) {

-                  GLint rows, cols;

-                  get_matrix_dims(p->DataType, &rows, &cols);

-                  if (rows < 1)

-                     rows = 1;

-                  offset = element * rows;

-               }

-            }

-         }

-

-         free(newName);

-      }

-   }

-

-   if (location < 0) {

-      location = _mesa_lookup_uniform(shProg->Uniforms, name);

-   }

-

-   if (location >= 0) {

-      merge_location_offset(&location, offset);

-   }

-

-   return location;

-}

-

-

-

-/**

- * Update the vertex/fragment program's TexturesUsed array.

- *

- * This needs to be called after glUniform(set sampler var) is called.

- * A call to glUniform(samplerVar, value) causes a sampler to point to a

- * particular texture unit.  We know the sampler's texture target

- * (1D/2D/3D/etc) from compile time but the sampler's texture unit is

- * set by glUniform() calls.

- *

- * So, scan the program->SamplerUnits[] and program->SamplerTargets[]

- * information to update the prog->TexturesUsed[] values.

- * Each value of TexturesUsed[unit] is one of zero, TEXTURE_1D_INDEX,

- * TEXTURE_2D_INDEX, TEXTURE_3D_INDEX, etc.

- * We'll use that info for state validation before rendering.

- */

-void

-_mesa_update_shader_textures_used(struct gl_program *prog)

-{

-   GLuint s;

-

-   memset(prog->TexturesUsed, 0, sizeof(prog->TexturesUsed));

-

-   for (s = 0; s < MAX_SAMPLERS; s++) {

-      if (prog->SamplersUsed & (1 << s)) {

-         GLuint unit = prog->SamplerUnits[s];

-         GLuint tgt = prog->SamplerTargets[s];

-         assert(unit < MAX_TEXTURE_IMAGE_UNITS);

-         assert(tgt < NUM_TEXTURE_TARGETS);

-         prog->TexturesUsed[unit] |= (1 << tgt);

-      }

-   }

-}

-

-

-/**

- * Check if the type given by userType is allowed to set a uniform of the

- * target type.  Generally, equivalence is required, but setting Boolean

- * uniforms can be done with glUniformiv or glUniformfv.

- */

-static GLboolean

-compatible_types(GLenum userType, GLenum targetType)

-{

-   if (userType == targetType)

-      return GL_TRUE;

-

-   if (targetType == GL_BOOL && (userType == GL_FLOAT ||

-                                 userType == GL_UNSIGNED_INT ||

-                                 userType == GL_INT))

-      return GL_TRUE;

-

-   if (targetType == GL_BOOL_VEC2 && (userType == GL_FLOAT_VEC2 ||

-                                      userType == GL_UNSIGNED_INT_VEC2 ||

-                                      userType == GL_INT_VEC2))

-      return GL_TRUE;

-

-   if (targetType == GL_BOOL_VEC3 && (userType == GL_FLOAT_VEC3 ||

-                                      userType == GL_UNSIGNED_INT_VEC3 ||

-                                      userType == GL_INT_VEC3))

-      return GL_TRUE;

-

-   if (targetType == GL_BOOL_VEC4 && (userType == GL_FLOAT_VEC4 ||

-                                      userType == GL_UNSIGNED_INT_VEC4 ||

-                                      userType == GL_INT_VEC4))

-      return GL_TRUE;

-

-   if (is_sampler_type(targetType) && userType == GL_INT)

-      return GL_TRUE;

-

-   return GL_FALSE;

-}

-

-

-/**

- * Set the value of a program's uniform variable.

- * \param program  the program whose uniform to update

- * \param index  the index of the program parameter for the uniform

- * \param offset  additional parameter slot offset (for arrays)

- * \param type  the incoming datatype of 'values'

- * \param count  the number of uniforms to set

- * \param elems  number of elements per uniform (1, 2, 3 or 4)

- * \param values  the new values, of datatype 'type'

- */

-static void

-set_program_uniform(struct gl_context *ctx, struct gl_program *program,

-                    GLint index, GLint offset,

-                    GLenum type, GLsizei count, GLint elems,

-                    const void *values)

-{

-   const struct gl_program_parameter *param =

-      &program->Parameters->Parameters[index];

-

-   assert(offset >= 0);

-   assert(elems >= 1);

-   assert(elems <= 4);

-

-   if (!compatible_types(type, param->DataType)) {

-      _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(type mismatch)");

-      return;

-   }

-

-   if (index + offset > (GLint) program->Parameters->Size) {

-      /* out of bounds! */

-      return;

-   }

-

-   if (param->Type == PROGRAM_SAMPLER) {

-      /* This controls which texture unit which is used by a sampler */

-      GLboolean changed = GL_FALSE;

-      GLint i;

-

-      /* this should have been caught by the compatible_types() check */

-      ASSERT(type == GL_INT);

-

-      /* loop over number of samplers to change */

-      for (i = 0; i < count; i++) {

-         GLuint sampler =

-            (GLuint) program->Parameters->ParameterValues[index + offset + i][0];

-         GLuint texUnit = ((GLuint *) values)[i];

-

-         /* check that the sampler (tex unit index) is legal */

-         if (texUnit >= ctx->Const.MaxTextureImageUnits) {

-            _mesa_error(ctx, GL_INVALID_VALUE,

-                        "glUniform1(invalid sampler/tex unit index for '%s')",

-                        param->Name);

-            return;

-         }

-

-         /* This maps a sampler to a texture unit: */

-         if (sampler < MAX_SAMPLERS) {

-#if 0

-            printf("Set program %p sampler %d '%s' to unit %u\n",

-		   program, sampler, param->Name, texUnit);

-#endif

-            if (program->SamplerUnits[sampler] != texUnit) {

-               program->SamplerUnits[sampler] = texUnit;

-               changed = GL_TRUE;

-            }

-         }

-      }

-

-      if (changed) {

-         /* When a sampler's value changes it usually requires rewriting

-          * a GPU program's TEX instructions since there may not be a

-          * sampler->texture lookup table.  We signal this with the

-          * ProgramStringNotify() callback.

-          */

-         FLUSH_VERTICES(ctx, _NEW_TEXTURE | _NEW_PROGRAM);

-         _mesa_update_shader_textures_used(program);

-         /* Do we need to care about the return value here?

-          * This should not be the first time the driver was notified of

-          * this program.

-          */

-         (void) ctx->Driver.ProgramStringNotify(ctx, program->Target, program);

-      }

-   }

-   else {

-      /* ordinary uniform variable */

-      const GLboolean isUniformBool = is_boolean_type(param->DataType);

-      const GLenum basicType = base_uniform_type(type);

-      const GLint slots = (param->Size + 3) / 4;

-      const GLint typeSize = _mesa_sizeof_glsl_type(param->DataType);

-      GLsizei k, i;

-

-      if ((GLint) param->Size > typeSize) {

-         /* an array */

-         /* we'll ignore extra data below */

-      }

-      else {

-         /* non-array: count must be at most one; count == 0 is handled by the loop below */

-         if (count > 1) {

-            _mesa_error(ctx, GL_INVALID_OPERATION,

-                        "glUniform(uniform '%s' is not an array)",

-                        param->Name);

-            return;

-         }

-      }

-

-      /* loop over number of array elements */

-      for (k = 0; k < count; k++) {

-         GLfloat *uniformVal;

-

-         if (offset + k >= slots) {

-            /* Extra array data is ignored */

-            break;

-         }

-

-         /* uniformVal (the destination) is always float[4] */

-         uniformVal = program->Parameters->ParameterValues[index + offset + k];

-

-         if (basicType == GL_INT) {

-            /* convert user's ints to floats */

-            const GLint *iValues = ((const GLint *) values) + k * elems;

-            for (i = 0; i < elems; i++) {

-               uniformVal[i] = (GLfloat) iValues[i];

-            }

-         }

-         else if (basicType == GL_UNSIGNED_INT) {

-            /* convert user's uints to floats */

-            const GLuint *iValues = ((const GLuint *) values) + k * elems;

-            for (i = 0; i < elems; i++) {

-               uniformVal[i] = (GLfloat) iValues[i];

-            }

-         }

-         else {

-            const GLfloat *fValues = ((const GLfloat *) values) + k * elems;

-            assert(basicType == GL_FLOAT);

-            for (i = 0; i < elems; i++) {

-               uniformVal[i] = fValues[i];

-            }

-         }

-

-         /* if the uniform is bool-valued, convert to 1.0 or 0.0 */

-         if (isUniformBool) {

-            for (i = 0; i < elems; i++) {

-               uniformVal[i] = uniformVal[i] ? 1.0f : 0.0f;

-            }

-         }

-      }

-   }

-}

-

-

-/**

- * Called via glUniform*() functions.

- */

-void

-_mesa_uniform(struct gl_context *ctx, struct gl_shader_program *shProg,

-	      GLint location, GLsizei count,

-              const GLvoid *values, GLenum type)

-{

-   struct gl_uniform *uniform;

-   GLint elems, offset;

-

-   if (!shProg || !shProg->LinkStatus) {

-      _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(program not linked)");

-      return;

-   }

-

-   if (location == -1)

-      return;   /* The standard specifies this as a no-op */

-

-   if (location < -1) {

-      _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(location=%d)",

-                  location);

-      return;

-   }

-

-   split_location_offset(&location, &offset);

-

-   if (location < 0 || location >= (GLint) shProg->Uniforms->NumUniforms) {

-      _mesa_error(ctx, GL_INVALID_VALUE, "glUniform(location=%d)", location);

-      return;

-   }

-

-   if (count < 0) {

-      _mesa_error(ctx, GL_INVALID_VALUE, "glUniform(count < 0)");

-      return;

-   }

-

-   elems = _mesa_sizeof_glsl_type(type);

-

-   FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);

-

-   uniform = &shProg->Uniforms->Uniforms[location];

-

-   if (ctx->Shader.Flags & GLSL_UNIFORMS) {

-      const GLenum basicType = base_uniform_type(type);

-      GLint i;

-      printf("Mesa: set program %u uniform %s (loc %d) to: ",

-	     shProg->Name, uniform->Name, location);

-      if (basicType == GL_INT) {

-         const GLint *v = (const GLint *) values;

-         for (i = 0; i < count * elems; i++) {

-            printf("%d ", v[i]);

-         }

-      }

-      else if (basicType == GL_UNSIGNED_INT) {

-         const GLuint *v = (const GLuint *) values;

-         for (i = 0; i < count * elems; i++) {

-            printf("%u ", v[i]);

-         }

-      }

-      else {

-         const GLfloat *v = (const GLfloat *) values;

-         assert(basicType == GL_FLOAT);

-         for (i = 0; i < count * elems; i++) {

-            printf("%g ", v[i]);

-         }

-      }

-      printf("\n");

-   }

-

-   /* A uniform var may be used by both a vertex shader and a fragment

-    * shader.  We may need to update one or both shader's uniform here:

-    */

-   if (shProg->VertexProgram) {

-      /* convert uniform location to program parameter index */

-      GLint index = uniform->VertPos;

-      if (index >= 0) {

-         set_program_uniform(ctx, &shProg->VertexProgram->Base,

-                             index, offset, type, count, elems, values);

-      }

-   }

-

-   if (shProg->FragmentProgram) {

-      /* convert uniform location to program parameter index */

-      GLint index = uniform->FragPos;

-      if (index >= 0) {

-         set_program_uniform(ctx, &shProg->FragmentProgram->Base,

-                             index, offset, type, count, elems, values);

-      }

-   }

-

-   if (shProg->GeometryProgram) {

-      /* convert uniform location to program parameter index */

-      GLint index = uniform->GeomPos;

-      if (index >= 0) {

-         set_program_uniform(ctx, &shProg->GeometryProgram->Base,

-                             index, offset, type, count, elems, values);

-      }

-   }

-

-   uniform->Initialized = GL_TRUE;

-}

-

-

-/**

- * Set a matrix-valued program parameter.

- */

-static void

-set_program_uniform_matrix(struct gl_context *ctx, struct gl_program *program,

-                           GLuint index, GLuint offset,

-                           GLuint count, GLuint rows, GLuint cols,

-                           GLboolean transpose, const GLfloat *values)

-{

-   GLuint mat, row, col;

-   GLuint src = 0;

-   const struct gl_program_parameter * param = &program->Parameters->Parameters[index];

-   const GLuint slots = (param->Size + 3) / 4;

-   const GLint typeSize = _mesa_sizeof_glsl_type(param->DataType);

-   GLint nr, nc;

-

-   /* check that the number of rows, columns is correct */

-   get_matrix_dims(param->DataType, &nr, &nc);

-   if (rows != nr || cols != nc) {

-      _mesa_error(ctx, GL_INVALID_OPERATION,

-                  "glUniformMatrix(matrix size mismatch)");

-      return;

-   }

-

-   if ((GLint) param->Size <= typeSize) {

-      /* non-array: count must be at most one; count == 0 is handled by the loop below */

-      if (count > 1) {

-         _mesa_error(ctx, GL_INVALID_OPERATION,

-                     "glUniformMatrix(uniform is not an array)");

-         return;

-      }

-   }

-

-   /*

-    * Note: the _columns_ of a matrix are stored in program registers, not

-    * the rows.  So, the loops below look a little funny.

-    * XXX could optimize this a bit...

-    */

-

-   /* loop over matrices */

-   for (mat = 0; mat < count; mat++) {

-

-      /* each matrix: */

-      for (col = 0; col < cols; col++) {

-         GLfloat *v;

-         if (offset >= slots) {

-            /* Ignore writes beyond the end of (the used part of) an array */

-            return;

-         }

-         v = program->Parameters->ParameterValues[index + offset];

-         for (row = 0; row < rows; row++) {

-            if (transpose) {

-               v[row] = values[src + row * cols + col];

-            }

-            else {

-               v[row] = values[src + col * rows + row];

-            }

-         }

-

-         offset++;

-      }

-

-      src += rows * cols;  /* next matrix */

-   }

-}

-

-

-/**

- * Called by glUniformMatrix*() functions.

- * Note: cols=2, rows=4  ==>  array[2] of vec4

- */

-void

-_mesa_uniform_matrix(struct gl_context *ctx, struct gl_shader_program *shProg,

-		     GLint cols, GLint rows,

-                     GLint location, GLsizei count,

-                     GLboolean transpose, const GLfloat *values)

-{

-   struct gl_uniform *uniform;

-   GLint offset;

-

-   if (!shProg || !shProg->LinkStatus) {

-      _mesa_error(ctx, GL_INVALID_OPERATION,

-         "glUniformMatrix(program not linked)");

-      return;

-   }

-

-   if (location == -1)

-      return;   /* The standard specifies this as a no-op */

-

-   if (location < -1) {

-      _mesa_error(ctx, GL_INVALID_OPERATION, "glUniformMatrix(location)");

-      return;

-   }

-

-   split_location_offset(&location, &offset);

-

-   if (location < 0 || location >= (GLint) shProg->Uniforms->NumUniforms) {

-      _mesa_error(ctx, GL_INVALID_VALUE, "glUniformMatrix(location)");

-      return;

-   }

-   if (values == NULL) {

-      _mesa_error(ctx, GL_INVALID_VALUE, "glUniformMatrix");

-      return;

-   }

-

-   FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);

-

-   uniform = &shProg->Uniforms->Uniforms[location];

-

-   if (shProg->VertexProgram) {

-      /* convert uniform location to program parameter index */

-      GLint index = uniform->VertPos;

-      if (index >= 0) {

-         set_program_uniform_matrix(ctx, &shProg->VertexProgram->Base,

-                                    index, offset,

-                                    count, rows, cols, transpose, values);

-      }

-   }

-

-   if (shProg->FragmentProgram) {

-      /* convert uniform location to program parameter index */

-      GLint index = uniform->FragPos;

-      if (index >= 0) {

-         set_program_uniform_matrix(ctx, &shProg->FragmentProgram->Base,

-                                    index, offset,

-                                    count, rows, cols, transpose, values);

-      }

-   }

-

-   if (shProg->GeometryProgram) {

-      /* convert uniform location to program parameter index */

-      GLint index = uniform->GeomPos;

-      if (index >= 0) {

-         set_program_uniform_matrix(ctx, &shProg->GeometryProgram->Base,

-                                    index, offset,

-                                    count, rows, cols, transpose, values);

-      }

-   }

-

-   uniform->Initialized = GL_TRUE;

-}

-

-

-void GLAPIENTRY

-_mesa_Uniform1fARB(GLint location, GLfloat v0)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, &v0, GL_FLOAT);

-}

-

-void GLAPIENTRY

-_mesa_Uniform2fARB(GLint location, GLfloat v0, GLfloat v1)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   GLfloat v[2];

-   v[0] = v0;

-   v[1] = v1;

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_FLOAT_VEC2);

-}

-

-void GLAPIENTRY

-_mesa_Uniform3fARB(GLint location, GLfloat v0, GLfloat v1, GLfloat v2)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   GLfloat v[3];

-   v[0] = v0;

-   v[1] = v1;

-   v[2] = v2;

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_FLOAT_VEC3);

-}

-

-void GLAPIENTRY

-_mesa_Uniform4fARB(GLint location, GLfloat v0, GLfloat v1, GLfloat v2,

-                   GLfloat v3)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   GLfloat v[4];

-   v[0] = v0;

-   v[1] = v1;

-   v[2] = v2;

-   v[3] = v3;

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_FLOAT_VEC4);

-}

-

-void GLAPIENTRY

-_mesa_Uniform1iARB(GLint location, GLint v0)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, &v0, GL_INT);

-}

-

-void GLAPIENTRY

-_mesa_Uniform2iARB(GLint location, GLint v0, GLint v1)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   GLint v[2];

-   v[0] = v0;

-   v[1] = v1;

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_INT_VEC2);

-}

-

-void GLAPIENTRY

-_mesa_Uniform3iARB(GLint location, GLint v0, GLint v1, GLint v2)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   GLint v[3];

-   v[0] = v0;

-   v[1] = v1;

-   v[2] = v2;

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_INT_VEC3);

-}

-

-void GLAPIENTRY

-_mesa_Uniform4iARB(GLint location, GLint v0, GLint v1, GLint v2, GLint v3)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   GLint v[4];

-   v[0] = v0;

-   v[1] = v1;

-   v[2] = v2;

-   v[3] = v3;

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_INT_VEC4);

-}

-

-void GLAPIENTRY

-_mesa_Uniform1fvARB(GLint location, GLsizei count, const GLfloat * value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT);

-}

-

-void GLAPIENTRY

-_mesa_Uniform2fvARB(GLint location, GLsizei count, const GLfloat * value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT_VEC2);

-}

-

-void GLAPIENTRY

-_mesa_Uniform3fvARB(GLint location, GLsizei count, const GLfloat * value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT_VEC3);

-}

-

-void GLAPIENTRY

-_mesa_Uniform4fvARB(GLint location, GLsizei count, const GLfloat * value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT_VEC4);

-}

-

-void GLAPIENTRY

-_mesa_Uniform1ivARB(GLint location, GLsizei count, const GLint * value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT);

-}

-

-void GLAPIENTRY

-_mesa_Uniform2ivARB(GLint location, GLsizei count, const GLint * value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT_VEC2);

-}

-

-void GLAPIENTRY

-_mesa_Uniform3ivARB(GLint location, GLsizei count, const GLint * value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT_VEC3);

-}

-

-void GLAPIENTRY

-_mesa_Uniform4ivARB(GLint location, GLsizei count, const GLint * value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT_VEC4);

-}

-

-

-/** OpenGL 3.0 GLuint-valued functions **/

-void GLAPIENTRY

-_mesa_Uniform1ui(GLint location, GLuint v0)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, &v0, GL_UNSIGNED_INT);

-}

-

-void GLAPIENTRY

-_mesa_Uniform2ui(GLint location, GLuint v0, GLuint v1)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   GLuint v[2];

-   v[0] = v0;

-   v[1] = v1;

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC2);

-}

-

-void GLAPIENTRY

-_mesa_Uniform3ui(GLint location, GLuint v0, GLuint v1, GLuint v2)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   GLuint v[3];

-   v[0] = v0;

-   v[1] = v1;

-   v[2] = v2;

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC3);

-}

-

-void GLAPIENTRY

-_mesa_Uniform4ui(GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   GLuint v[4];

-   v[0] = v0;

-   v[1] = v1;

-   v[2] = v2;

-   v[3] = v3;

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC4);

-}

-

-void GLAPIENTRY

-_mesa_Uniform1uiv(GLint location, GLsizei count, const GLuint *value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT);

-}

-

-void GLAPIENTRY

-_mesa_Uniform2uiv(GLint location, GLsizei count, const GLuint *value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC2);

-}

-

-void GLAPIENTRY

-_mesa_Uniform3uiv(GLint location, GLsizei count, const GLuint *value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC3);

-}

-

-void GLAPIENTRY

-_mesa_Uniform4uiv(GLint location, GLsizei count, const GLuint *value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC4);

-}

-

-

-

-void GLAPIENTRY

-_mesa_UniformMatrix2fvARB(GLint location, GLsizei count, GLboolean transpose,

-                          const GLfloat * value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,

-			2, 2, location, count, transpose, value);

-}

-

-void GLAPIENTRY

-_mesa_UniformMatrix3fvARB(GLint location, GLsizei count, GLboolean transpose,

-                          const GLfloat * value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,

-			3, 3, location, count, transpose, value);

-}

-

-void GLAPIENTRY

-_mesa_UniformMatrix4fvARB(GLint location, GLsizei count, GLboolean transpose,

-                          const GLfloat * value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,

-			4, 4, location, count, transpose, value);

-}

-

-

-/**

- * Non-square UniformMatrix are OpenGL 2.1

- */

-void GLAPIENTRY

-_mesa_UniformMatrix2x3fv(GLint location, GLsizei count, GLboolean transpose,

-                         const GLfloat *value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,

-			2, 3, location, count, transpose, value);

-}

-

-void GLAPIENTRY

-_mesa_UniformMatrix3x2fv(GLint location, GLsizei count, GLboolean transpose,

-                         const GLfloat *value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,

-			3, 2, location, count, transpose, value);

-}

-

-void GLAPIENTRY

-_mesa_UniformMatrix2x4fv(GLint location, GLsizei count, GLboolean transpose,

-                         const GLfloat *value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,

-			2, 4, location, count, transpose, value);

-}

-

-void GLAPIENTRY

-_mesa_UniformMatrix4x2fv(GLint location, GLsizei count, GLboolean transpose,

-                         const GLfloat *value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,

-			4, 2, location, count, transpose, value);

-}

-

-void GLAPIENTRY

-_mesa_UniformMatrix3x4fv(GLint location, GLsizei count, GLboolean transpose,

-                         const GLfloat *value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,

-			3, 4, location, count, transpose, value);

-}

-

-void GLAPIENTRY

-_mesa_UniformMatrix4x3fv(GLint location, GLsizei count, GLboolean transpose,

-                         const GLfloat *value)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,

-			4, 3, location, count, transpose, value);

-}

-

-

-void GLAPIENTRY

-_mesa_GetUniformfvARB(GLhandleARB program, GLint location, GLfloat *params)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_get_uniformfv(ctx, program, location, params);

-}

-

-

-void GLAPIENTRY

-_mesa_GetUniformivARB(GLhandleARB program, GLint location, GLint *params)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_get_uniformiv(ctx, program, location, params);

-}

-

-

-/* GL3 */

-void GLAPIENTRY

-_mesa_GetUniformuiv(GLhandleARB program, GLint location, GLuint *params)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_get_uniformuiv(ctx, program, location, params);

-}

-

-

-

-GLint GLAPIENTRY

-_mesa_GetUniformLocationARB(GLhandleARB programObj, const GLcharARB *name)

-{

-   struct gl_shader_program *shProg;

-

-   GET_CURRENT_CONTEXT(ctx);

-

-   shProg = _mesa_lookup_shader_program_err(ctx, programObj,

-					    "glGetUniformLocation");

-   if (!shProg)

-      return -1;

-

-   return _mesa_get_uniform_location(ctx, shProg, name);

-}

-

-

-void GLAPIENTRY

-_mesa_GetActiveUniformARB(GLhandleARB program, GLuint index,

-                          GLsizei maxLength, GLsizei * length, GLint * size,

-                          GLenum * type, GLcharARB * name)

-{

-   GET_CURRENT_CONTEXT(ctx);

-   _mesa_get_active_uniform(ctx, program, index, maxLength, length, size,

-                            type, name);

-}

-

-

-/**

- * Plug in shader uniform-related functions into API dispatch table.

- */

-void

-_mesa_init_shader_uniform_dispatch(struct _glapi_table *exec)

-{

-#if FEATURE_GL

-   SET_Uniform1fARB(exec, _mesa_Uniform1fARB);

-   SET_Uniform2fARB(exec, _mesa_Uniform2fARB);

-   SET_Uniform3fARB(exec, _mesa_Uniform3fARB);

-   SET_Uniform4fARB(exec, _mesa_Uniform4fARB);

-   SET_Uniform1iARB(exec, _mesa_Uniform1iARB);

-   SET_Uniform2iARB(exec, _mesa_Uniform2iARB);

-   SET_Uniform3iARB(exec, _mesa_Uniform3iARB);

-   SET_Uniform4iARB(exec, _mesa_Uniform4iARB);

-   SET_Uniform1fvARB(exec, _mesa_Uniform1fvARB);

-   SET_Uniform2fvARB(exec, _mesa_Uniform2fvARB);

-   SET_Uniform3fvARB(exec, _mesa_Uniform3fvARB);

-   SET_Uniform4fvARB(exec, _mesa_Uniform4fvARB);

-   SET_Uniform1ivARB(exec, _mesa_Uniform1ivARB);

-   SET_Uniform2ivARB(exec, _mesa_Uniform2ivARB);

-   SET_Uniform3ivARB(exec, _mesa_Uniform3ivARB);

-   SET_Uniform4ivARB(exec, _mesa_Uniform4ivARB);

-   SET_UniformMatrix2fvARB(exec, _mesa_UniformMatrix2fvARB);

-   SET_UniformMatrix3fvARB(exec, _mesa_UniformMatrix3fvARB);

-   SET_UniformMatrix4fvARB(exec, _mesa_UniformMatrix4fvARB);

-

-   SET_GetActiveUniformARB(exec, _mesa_GetActiveUniformARB);

-   SET_GetUniformLocationARB(exec, _mesa_GetUniformLocationARB);

-   SET_GetUniformfvARB(exec, _mesa_GetUniformfvARB);

-   SET_GetUniformivARB(exec, _mesa_GetUniformivARB);

-

-   /* OpenGL 2.1 */

-   SET_UniformMatrix2x3fv(exec, _mesa_UniformMatrix2x3fv);

-   SET_UniformMatrix3x2fv(exec, _mesa_UniformMatrix3x2fv);

-   SET_UniformMatrix2x4fv(exec, _mesa_UniformMatrix2x4fv);

-   SET_UniformMatrix4x2fv(exec, _mesa_UniformMatrix4x2fv);

-   SET_UniformMatrix3x4fv(exec, _mesa_UniformMatrix3x4fv);

-   SET_UniformMatrix4x3fv(exec, _mesa_UniformMatrix4x3fv);

-

-   /* OpenGL 3.0 */

-   /* XXX finish dispatch */

-   SET_Uniform1uiEXT(exec, _mesa_Uniform1ui);

-   SET_Uniform2uiEXT(exec, _mesa_Uniform2ui);

-   SET_Uniform3uiEXT(exec, _mesa_Uniform3ui);

-   SET_Uniform4uiEXT(exec, _mesa_Uniform4ui);

-   SET_Uniform1uivEXT(exec, _mesa_Uniform1uiv);

-   SET_Uniform2uivEXT(exec, _mesa_Uniform2uiv);

-   SET_Uniform3uivEXT(exec, _mesa_Uniform3uiv);

-   SET_Uniform4uivEXT(exec, _mesa_Uniform4uiv);

-   SET_GetUniformuivEXT(exec, _mesa_GetUniformuiv);

-

-

-#endif /* FEATURE_GL */

-}

+/*
+ * Mesa 3-D graphics library
+ *
+ * Copyright (C) 2004-2008  Brian Paul   All Rights Reserved.
+ * Copyright (C) 2009-2010  VMware, Inc.  All Rights Reserved.
+ * Copyright © 2010 Intel Corporation
+ *
+ * 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 uniforms.c
+ * Functions related to GLSL uniform variables.
+ * \author Brian Paul
+ */
+
+/**
+ * XXX things to do:
+ * 1. Check that the right error code is generated for all _mesa_error() calls.
+ * 2. Insert FLUSH_VERTICES calls in various places
+ */
+
+
+#include "main/glheader.h"
+#include "main/context.h"
+#include "main/dispatch.h"
+#include "main/mfeatures.h"
+#include "main/mtypes.h"
+#include "main/shaderapi.h"
+#include "main/shaderobj.h"
+#include "main/uniforms.h"
+#include "program/prog_parameter.h"
+#include "program/prog_statevars.h"
+#include "program/prog_uniform.h"
+#include "program/prog_instruction.h"
+
+
+static GLenum
+base_uniform_type(GLenum type)
+{
+   switch (type) {
+#if 0 /* not needed, for now */
+   case GL_BOOL:
+   case GL_BOOL_VEC2:
+   case GL_BOOL_VEC3:
+   case GL_BOOL_VEC4:
+      return GL_BOOL;
+#endif
+   case GL_FLOAT:
+   case GL_FLOAT_VEC2:
+   case GL_FLOAT_VEC3:
+   case GL_FLOAT_VEC4:
+      return GL_FLOAT;
+   case GL_UNSIGNED_INT:
+   case GL_UNSIGNED_INT_VEC2:
+   case GL_UNSIGNED_INT_VEC3:
+   case GL_UNSIGNED_INT_VEC4:
+      return GL_UNSIGNED_INT;
+   case GL_INT:
+   case GL_INT_VEC2:
+   case GL_INT_VEC3:
+   case GL_INT_VEC4:
+      return GL_INT;
+   default:
+      _mesa_problem(NULL, "Invalid type in base_uniform_type()");
+      return GL_FLOAT;
+   }
+}
+
+
+static GLboolean
+is_boolean_type(GLenum type)
+{
+   switch (type) {
+   case GL_BOOL:
+   case GL_BOOL_VEC2:
+   case GL_BOOL_VEC3:
+   case GL_BOOL_VEC4:
+      return GL_TRUE;
+   default:
+      return GL_FALSE;
+   }
+}
+
+
+static GLboolean
+is_sampler_type(GLenum type)
+{
+   switch (type) {
+   case GL_SAMPLER_1D:
+   case GL_SAMPLER_2D:
+   case GL_SAMPLER_3D:
+   case GL_SAMPLER_CUBE:
+   case GL_SAMPLER_1D_SHADOW:
+   case GL_SAMPLER_2D_SHADOW:
+   case GL_SAMPLER_2D_RECT_ARB:
+   case GL_SAMPLER_2D_RECT_SHADOW_ARB:
+   case GL_SAMPLER_1D_ARRAY_EXT:
+   case GL_SAMPLER_2D_ARRAY_EXT:
+   case GL_SAMPLER_1D_ARRAY_SHADOW_EXT:
+   case GL_SAMPLER_2D_ARRAY_SHADOW_EXT:
+      return GL_TRUE;
+   default:
+      return GL_FALSE;
+   }
+}
+
+
+static struct gl_program_parameter *
+get_uniform_parameter(const struct gl_shader_program *shProg, GLuint index)
+{
+   const struct gl_program *prog = NULL;
+   GLint progPos;
+
+   progPos = shProg->Uniforms->Uniforms[index].VertPos;
+   if (progPos >= 0) {
+      prog = &shProg->VertexProgram->Base;
+   }
+   else {
+      progPos = shProg->Uniforms->Uniforms[index].FragPos;
+      if (progPos >= 0) {
+         prog = &shProg->FragmentProgram->Base;
+      } else {
+         progPos = shProg->Uniforms->Uniforms[index].GeomPos;
+         if (progPos >= 0) {
+            prog = &shProg->GeometryProgram->Base;
+         }
+      }
+   }
+
+   if (!prog || progPos < 0)
+      return NULL; /* should never happen */
+
+   return &prog->Parameters->Parameters[progPos];
+}
+
+
+/**
+ * Called by glGetActiveUniform().
+ */
+static void
+_mesa_get_active_uniform(struct gl_context *ctx, GLuint program, GLuint index,
+                         GLsizei maxLength, GLsizei *length, GLint *size,
+                         GLenum *type, GLchar *nameOut)
+{
+   const struct gl_shader_program *shProg;
+   const struct gl_program *prog = NULL;
+   const struct gl_program_parameter *param;
+   GLint progPos;
+
+   shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveUniform");
+   if (!shProg)
+      return;
+
+   if (!shProg->Uniforms || index >= shProg->Uniforms->NumUniforms) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveUniform(index)");
+      return;
+   }
+
+   progPos = shProg->Uniforms->Uniforms[index].VertPos;
+   if (progPos >= 0) {
+      prog = &shProg->VertexProgram->Base;
+   }
+   else {
+      progPos = shProg->Uniforms->Uniforms[index].FragPos;
+      if (progPos >= 0) {
+         prog = &shProg->FragmentProgram->Base;
+      } else {
+         progPos = shProg->Uniforms->Uniforms[index].GeomPos;
+         if (progPos >= 0) {
+            prog = &shProg->GeometryProgram->Base;
+         }
+      }
+   }
+
+   if (!prog || progPos < 0)
+      return; /* should never happen */
+
+   ASSERT(progPos < prog->Parameters->NumParameters);
+   param = &prog->Parameters->Parameters[progPos];
+
+   if (nameOut) {
+      _mesa_copy_string(nameOut, maxLength, length, param->Name);
+   }
+
+   if (size) {
+      GLint typeSize = _mesa_sizeof_glsl_type(param->DataType);
+      if ((GLint) param->Size > typeSize) {
+         /* This is an array.
+          * Array elements are placed on vector[4] boundaries so they're
+          * a multiple of four floats.  We round typeSize up to next multiple
+          * of four to get the right size below.
+          */
+         typeSize = (typeSize + 3) & ~3;
+      }
+      /* Note that the returned size is in units of the <type>, not bytes */
+      *size = param->Size / typeSize;
+   }
+
+   if (type) {
+      *type = param->DataType;
+   }
+}
+
+
+static unsigned
+get_vector_elements(GLenum type)
+{
+   switch (type) {
+   case GL_FLOAT:
+   case GL_INT:
+   case GL_BOOL:
+   case GL_UNSIGNED_INT:
+   default: /* Catch all the various sampler types. */
+      return 1;
+
+   case GL_FLOAT_VEC2:
+   case GL_INT_VEC2:
+   case GL_BOOL_VEC2:
+   case GL_UNSIGNED_INT_VEC2:
+      return 2;
+
+   case GL_FLOAT_VEC3:
+   case GL_INT_VEC3:
+   case GL_BOOL_VEC3:
+   case GL_UNSIGNED_INT_VEC3:
+      return 3;
+
+   case GL_FLOAT_VEC4:
+   case GL_INT_VEC4:
+   case GL_BOOL_VEC4:
+   case GL_UNSIGNED_INT_VEC4:
+      return 4;
+   }
+}
+
+static void
+get_matrix_dims(GLenum type, GLint *rows, GLint *cols)
+{
+   switch (type) {
+   case GL_FLOAT_MAT2:
+      *rows = *cols = 2;
+      break;
+   case GL_FLOAT_MAT2x3:
+      *rows = 3;
+      *cols = 2;
+      break;
+   case GL_FLOAT_MAT2x4:
+      *rows = 4;
+      *cols = 2;
+      break;
+   case GL_FLOAT_MAT3:
+      *rows = 3;
+      *cols = 3;
+      break;
+   case GL_FLOAT_MAT3x2:
+      *rows = 2;
+      *cols = 3;
+      break;
+   case GL_FLOAT_MAT3x4:
+      *rows = 4;
+      *cols = 3;
+      break;
+   case GL_FLOAT_MAT4:
+      *rows = 4;
+      *cols = 4;
+      break;
+   case GL_FLOAT_MAT4x2:
+      *rows = 2;
+      *cols = 4;
+      break;
+   case GL_FLOAT_MAT4x3:
+      *rows = 3;
+      *cols = 4;
+      break;
+   default:
+      *rows = *cols = 0;
+   }
+}
+
+
+/**
+ * Determine the number of rows and columns occupied by a uniform
+ * according to its datatype.  For non-matrix types (such as GL_FLOAT_VEC4),
+ * the number of rows = 1 and cols = number of elements in the vector.
+ */
+static void
+get_uniform_rows_cols(const struct gl_program_parameter *p,
+                      GLint *rows, GLint *cols)
+{
+   get_matrix_dims(p->DataType, rows, cols);
+   if (*rows == 0 && *cols == 0) {
+      /* not a matrix type, probably a float or vector */
+      *rows = 1;
+      *cols = get_vector_elements(p->DataType);
+   }
+}
+
+
+/**
+ * Helper for get_uniform[fi]v() functions.
+ * Given a shader program name and uniform location, return a pointer
+ * to the shader program and return the program parameter position.
+ */
+static void
+lookup_uniform_parameter(struct gl_context *ctx, GLuint program, GLint location,
+                         struct gl_program **progOut, GLint *paramPosOut)
+{
+   struct gl_shader_program *shProg
+      = _mesa_lookup_shader_program_err(ctx, program, "glGetUniform[if]v");
+   struct gl_program *prog = NULL;
+   GLint progPos = -1;
+
+   /* if shProg is NULL, we'll have already recorded an error */
+
+   if (shProg) {
+      if (!shProg->Uniforms ||
+          location < 0 ||
+          location >= (GLint) shProg->Uniforms->NumUniforms) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,  "glGetUniformfv(location)");
+      }
+      else {
+         /* OK, find the gl_program and program parameter location */
+         progPos = shProg->Uniforms->Uniforms[location].VertPos;
+         if (progPos >= 0) {
+            prog = &shProg->VertexProgram->Base;
+         }
+         else {
+            progPos = shProg->Uniforms->Uniforms[location].FragPos;
+            if (progPos >= 0) {
+               prog = &shProg->FragmentProgram->Base;
+            } else {
+               progPos = shProg->Uniforms->Uniforms[location].GeomPos;
+               if (progPos >= 0) {
+                  prog = &shProg->GeometryProgram->Base;
+               }
+            }
+         }
+      }
+   }
+
+   *progOut = prog;
+   *paramPosOut = progPos;
+}
+
+
+/**
+ * GLGL uniform arrays and structs require special handling.
+ *
+ * The GL_ARB_shader_objects spec says that if you use
+ * glGetUniformLocation to get the location of an array, you CANNOT
+ * access other elements of the array by adding an offset to the
+ * returned location.  For example, you must call
+ * glGetUniformLocation("foo[16]") if you want to set the 16th element
+ * of the array with glUniform().
+ *
+ * HOWEVER, some other OpenGL drivers allow accessing array elements
+ * by adding an offset to the returned array location.  And some apps
+ * seem to depend on that behaviour.
+ *
+ * Mesa's gl_uniform_list doesn't directly support this since each
+ * entry in the list describes one uniform variable, not one uniform
+ * element.  We could insert dummy entries in the list for each array
+ * element after [0] but that causes complications elsewhere.
+ *
+ * We solve this problem by encoding two values in the location that's
+ * returned by glGetUniformLocation():
+ *  a) index into gl_uniform_list::Uniforms[] for the uniform
+ *  b) an array/field offset (0 for simple types)
+ *
+ * These two values are encoded in the high and low halves of a GLint.
+ * By putting the uniform number in the high part and the offset in the
+ * low part, we can support the unofficial ability to index into arrays
+ * by adding offsets to the location value.
+ */
+static void
+merge_location_offset(GLint *location, GLint offset)
+{
+   *location = (*location << 16) | offset;
+}
+
+
+/**
+ * Separate the uniform location and parameter offset.  See above.
+ */
+static void
+split_location_offset(GLint *location, GLint *offset)
+{
+   *offset = *location & 0xffff;
+   *location = *location >> 16;
+}
+
+
+
+/**
+ * Called via glGetUniformfv().
+ */
+static void
+_mesa_get_uniformfv(struct gl_context *ctx, GLuint program, GLint location,
+                    GLfloat *params)
+{
+   struct gl_program *prog;
+   GLint paramPos;
+   GLint offset;
+
+   split_location_offset(&location, &offset);
+
+   lookup_uniform_parameter(ctx, program, location, &prog, &paramPos);
+
+   if (prog) {
+      const struct gl_program_parameter *p =
+         &prog->Parameters->Parameters[paramPos];
+      GLint rows, cols, i, j, k;
+
+      get_uniform_rows_cols(p, &rows, &cols);
+
+      k = 0;
+      for (i = 0; i < rows; i++) {
+	 const int base = paramPos + offset + i;
+
+         for (j = 0; j < cols; j++ ) {
+            params[k++] = prog->Parameters->ParameterValues[base][j];
+         }
+      }
+   }
+}
+
+
+/**
+ * Called via glGetUniformiv().
+ * \sa _mesa_get_uniformfv, only difference is a cast.
+ */
+static void
+_mesa_get_uniformiv(struct gl_context *ctx, GLuint program, GLint location,
+                    GLint *params)
+{
+   struct gl_program *prog;
+   GLint paramPos;
+   GLint offset;
+
+   split_location_offset(&location, &offset);
+
+   lookup_uniform_parameter(ctx, program, location, &prog, &paramPos);
+
+   if (prog) {
+      const struct gl_program_parameter *p =
+         &prog->Parameters->Parameters[paramPos];
+      GLint rows, cols, i, j, k;
+
+      get_uniform_rows_cols(p, &rows, &cols);
+
+      k = 0;
+      for (i = 0; i < rows; i++) {
+	 const int base = paramPos + offset + i;
+
+         for (j = 0; j < cols; j++ ) {
+            params[k++] = (GLint) prog->Parameters->ParameterValues[base][j];
+         }
+      }
+   }
+}
+
+
+/**
+ * Called via glGetUniformuiv().
+ * New in GL_EXT_gpu_shader4, OpenGL 3.0
+ * \sa _mesa_get_uniformfv, only difference is a cast.
+ */
+static void
+_mesa_get_uniformuiv(struct gl_context *ctx, GLuint program, GLint location,
+                     GLuint *params)
+{
+   struct gl_program *prog;
+   GLint paramPos;
+   GLint offset;
+
+   split_location_offset(&location, &offset);
+
+   lookup_uniform_parameter(ctx, program, location, &prog, &paramPos);
+
+   if (prog) {
+      const struct gl_program_parameter *p =
+         &prog->Parameters->Parameters[paramPos];
+      GLint rows, cols, i, j, k;
+
+      get_uniform_rows_cols(p, &rows, &cols);
+
+      k = 0;
+      for (i = 0; i < rows; i++) {
+	 const int base = paramPos + offset + i;
+
+         for (j = 0; j < cols; j++ ) {
+            params[k++] = (GLuint) prog->Parameters->ParameterValues[base][j];
+         }
+      }
+   }
+}
+
+
+/**
+ * Called via glGetUniformLocation().
+ *
+ * The return value will encode two values, the uniform location and an
+ * offset (used for arrays, structs).
+ */
+GLint
+_mesa_get_uniform_location(struct gl_context *ctx, struct gl_shader_program *shProg,
+			   const GLchar *name)
+{
+   GLint offset = 0, location = -1;
+
+   if (shProg->LinkStatus == GL_FALSE) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetUniformfv(program)");
+      return -1;
+   }
+
+   /* XXX we should return -1 if the uniform was declared, but not
+    * actually used.
+    */
+
+   /* XXX we need to be able to parse uniform names for structs and arrays
+    * such as:
+    *   mymatrix[1]
+    *   mystruct.field1
+    */
+
+   {
+      /* handle 1-dimension arrays here... */
+      char *c = strchr(name, '[');
+      if (c) {
+         /* truncate name at [ */
+         const GLint len = c - name;
+         GLchar *newName = malloc(len + 1);
+         if (!newName)
+            return -1; /* out of mem */
+         memcpy(newName, name, len);
+         newName[len] = 0;
+
+         location = _mesa_lookup_uniform(shProg->Uniforms, newName);
+         if (location >= 0) {
+            const GLint element = atoi(c + 1);
+            if (element > 0) {
+               /* get type of the uniform array element */
+               struct gl_program_parameter *p;
+               p = get_uniform_parameter(shProg, location);
+               if (p) {
+                  GLint rows, cols;
+                  get_matrix_dims(p->DataType, &rows, &cols);
+                  if (rows < 1)
+                     rows = 1;
+                  offset = element * rows;
+               }
+            }
+         }
+
+         free(newName);
+      }
+   }
+
+   if (location < 0) {
+      location = _mesa_lookup_uniform(shProg->Uniforms, name);
+   }
+
+   if (location >= 0) {
+      merge_location_offset(&location, offset);
+   }
+
+   return location;
+}
+
+
+
+/**
+ * Update the vertex/fragment program's TexturesUsed array.
+ *
+ * This needs to be called after glUniform(set sampler var) is called.
+ * A call to glUniform(samplerVar, value) causes a sampler to point to a
+ * particular texture unit.  We know the sampler's texture target
+ * (1D/2D/3D/etc) from compile time but the sampler's texture unit is
+ * set by glUniform() calls.
+ *
+ * So, scan the program->SamplerUnits[] and program->SamplerTargets[]
+ * information to update the prog->TexturesUsed[] values.
+ * Each value of TexturesUsed[unit] is one of zero, TEXTURE_1D_INDEX,
+ * TEXTURE_2D_INDEX, TEXTURE_3D_INDEX, etc.
+ * We'll use that info for state validation before rendering.
+ */
+void
+_mesa_update_shader_textures_used(struct gl_program *prog)
+{
+   GLuint s;
+
+   memset(prog->TexturesUsed, 0, sizeof(prog->TexturesUsed));
+
+   for (s = 0; s < MAX_SAMPLERS; s++) {
+      if (prog->SamplersUsed & (1 << s)) {
+         GLuint unit = prog->SamplerUnits[s];
+         GLuint tgt = prog->SamplerTargets[s];
+         assert(unit < MAX_TEXTURE_IMAGE_UNITS);
+         assert(tgt < NUM_TEXTURE_TARGETS);
+         prog->TexturesUsed[unit] |= (1 << tgt);
+      }
+   }
+}
+
+
+/**
+ * Check if the type given by userType is allowed to set a uniform of the
+ * target type.  Generally, equivalence is required, but setting Boolean
+ * uniforms can be done with glUniformiv or glUniformfv.
+ */
+static GLboolean
+compatible_types(GLenum userType, GLenum targetType)
+{
+   if (userType == targetType)
+      return GL_TRUE;
+
+   if (targetType == GL_BOOL && (userType == GL_FLOAT ||
+                                 userType == GL_UNSIGNED_INT ||
+                                 userType == GL_INT))
+      return GL_TRUE;
+
+   if (targetType == GL_BOOL_VEC2 && (userType == GL_FLOAT_VEC2 ||
+                                      userType == GL_UNSIGNED_INT_VEC2 ||
+                                      userType == GL_INT_VEC2))
+      return GL_TRUE;
+
+   if (targetType == GL_BOOL_VEC3 && (userType == GL_FLOAT_VEC3 ||
+                                      userType == GL_UNSIGNED_INT_VEC3 ||
+                                      userType == GL_INT_VEC3))
+      return GL_TRUE;
+
+   if (targetType == GL_BOOL_VEC4 && (userType == GL_FLOAT_VEC4 ||
+                                      userType == GL_UNSIGNED_INT_VEC4 ||
+                                      userType == GL_INT_VEC4))
+      return GL_TRUE;
+
+   if (is_sampler_type(targetType) && userType == GL_INT)
+      return GL_TRUE;
+
+   return GL_FALSE;
+}
+
+
+/**
+ * Set the value of a program's uniform variable.
+ * \param program  the program whose uniform to update
+ * \param index  the index of the program parameter for the uniform
+ * \param offset  additional parameter slot offset (for arrays)
+ * \param type  the incoming datatype of 'values'
+ * \param count  the number of uniforms to set
+ * \param elems  number of elements per uniform (1, 2, 3 or 4)
+ * \param values  the new values, of datatype 'type'
+ */
+static void
+set_program_uniform(struct gl_context *ctx, struct gl_program *program,
+                    GLint index, GLint offset,
+                    GLenum type, GLsizei count, GLint elems,
+                    const void *values)
+{
+   const struct gl_program_parameter *param =
+      &program->Parameters->Parameters[index];
+
+   assert(offset >= 0);
+   assert(elems >= 1);
+   assert(elems <= 4);
+
+   if (!compatible_types(type, param->DataType)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(type mismatch)");
+      return;
+   }
+
+   if (index + offset > (GLint) program->Parameters->Size) {
+      /* out of bounds! */
+      return;
+   }
+
+   if (param->Type == PROGRAM_SAMPLER) {
+      /* This controls which texture unit which is used by a sampler */
+      GLboolean changed = GL_FALSE;
+      GLint i;
+
+      /* this should have been caught by the compatible_types() check */
+      ASSERT(type == GL_INT);
+
+      /* loop over number of samplers to change */
+      for (i = 0; i < count; i++) {
+         GLuint sampler =
+            (GLuint) program->Parameters->ParameterValues[index + offset + i][0];
+         GLuint texUnit = ((GLuint *) values)[i];
+
+         /* check that the sampler (tex unit index) is legal */
+         if (texUnit >= ctx->Const.MaxTextureImageUnits) {
+            _mesa_error(ctx, GL_INVALID_VALUE,
+                        "glUniform1(invalid sampler/tex unit index for '%s')",
+                        param->Name);
+            return;
+         }
+
+         /* This maps a sampler to a texture unit: */
+         if (sampler < MAX_SAMPLERS) {
+#if 0
+            printf("Set program %p sampler %d '%s' to unit %u\n",
+		   program, sampler, param->Name, texUnit);
+#endif
+            if (program->SamplerUnits[sampler] != texUnit) {
+               program->SamplerUnits[sampler] = texUnit;
+               changed = GL_TRUE;
+            }
+         }
+      }
+
+      if (changed) {
+         /* When a sampler's value changes it usually requires rewriting
+          * a GPU program's TEX instructions since there may not be a
+          * sampler->texture lookup table.  We signal this with the
+          * ProgramStringNotify() callback.
+          */
+         FLUSH_VERTICES(ctx, _NEW_TEXTURE | _NEW_PROGRAM);
+         _mesa_update_shader_textures_used(program);
+         /* Do we need to care about the return value here?
+          * This should not be the first time the driver was notified of
+          * this program.
+          */
+         (void) ctx->Driver.ProgramStringNotify(ctx, program->Target, program);
+      }
+   }
+   else {
+      /* ordinary uniform variable */
+      const GLboolean isUniformBool = is_boolean_type(param->DataType);
+      const GLenum basicType = base_uniform_type(type);
+      const GLint slots = (param->Size + 3) / 4;
+      const GLint typeSize = _mesa_sizeof_glsl_type(param->DataType);
+      GLsizei k, i;
+
+      if ((GLint) param->Size > typeSize) {
+         /* an array */
+         /* we'll ignore extra data below */
+      }
+      else {
+         /* non-array: count must be at most one; count == 0 is handled by the loop below */
+         if (count > 1) {
+            _mesa_error(ctx, GL_INVALID_OPERATION,
+                        "glUniform(uniform '%s' is not an array)",
+                        param->Name);
+            return;
+         }
+      }
+
+      /* loop over number of array elements */
+      for (k = 0; k < count; k++) {
+         GLfloat *uniformVal;
+
+         if (offset + k >= slots) {
+            /* Extra array data is ignored */
+            break;
+         }
+
+         /* uniformVal (the destination) is always float[4] */
+         uniformVal = program->Parameters->ParameterValues[index + offset + k];
+
+         if (basicType == GL_INT) {
+            /* convert user's ints to floats */
+            const GLint *iValues = ((const GLint *) values) + k * elems;
+            for (i = 0; i < elems; i++) {
+               uniformVal[i] = (GLfloat) iValues[i];
+            }
+         }
+         else if (basicType == GL_UNSIGNED_INT) {
+            /* convert user's uints to floats */
+            const GLuint *iValues = ((const GLuint *) values) + k * elems;
+            for (i = 0; i < elems; i++) {
+               uniformVal[i] = (GLfloat) iValues[i];
+            }
+         }
+         else {
+            const GLfloat *fValues = ((const GLfloat *) values) + k * elems;
+            assert(basicType == GL_FLOAT);
+            for (i = 0; i < elems; i++) {
+               uniformVal[i] = fValues[i];
+            }
+         }
+
+         /* if the uniform is bool-valued, convert to 1.0 or 0.0 */
+         if (isUniformBool) {
+            for (i = 0; i < elems; i++) {
+               uniformVal[i] = uniformVal[i] ? 1.0f : 0.0f;
+            }
+         }
+      }
+   }
+}
+
+
+/**
+ * Called via glUniform*() functions.
+ */
+void
+_mesa_uniform(struct gl_context *ctx, struct gl_shader_program *shProg,
+	      GLint location, GLsizei count,
+              const GLvoid *values, GLenum type)
+{
+   struct gl_uniform *uniform;
+   GLint elems, offset;
+
+   if (!shProg || !shProg->LinkStatus) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(program not linked)");
+      return;
+   }
+
+   if (location == -1)
+      return;   /* The standard specifies this as a no-op */
+
+   if (location < -1) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glUniform(location=%d)",
+                  location);
+      return;
+   }
+
+   split_location_offset(&location, &offset);
+
+   if (location < 0 || location >= (GLint) shProg->Uniforms->NumUniforms) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glUniform(location=%d)", location);
+      return;
+   }
+
+   if (count < 0) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glUniform(count < 0)");
+      return;
+   }
+
+   elems = _mesa_sizeof_glsl_type(type);
+
+   FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);
+
+   uniform = &shProg->Uniforms->Uniforms[location];
+
+   if (ctx->Shader.Flags & GLSL_UNIFORMS) {
+      const GLenum basicType = base_uniform_type(type);
+      GLint i;
+      printf("Mesa: set program %u uniform %s (loc %d) to: ",
+	     shProg->Name, uniform->Name, location);
+      if (basicType == GL_INT) {
+         const GLint *v = (const GLint *) values;
+         for (i = 0; i < count * elems; i++) {
+            printf("%d ", v[i]);
+         }
+      }
+      else if (basicType == GL_UNSIGNED_INT) {
+         const GLuint *v = (const GLuint *) values;
+         for (i = 0; i < count * elems; i++) {
+            printf("%u ", v[i]);
+         }
+      }
+      else {
+         const GLfloat *v = (const GLfloat *) values;
+         assert(basicType == GL_FLOAT);
+         for (i = 0; i < count * elems; i++) {
+            printf("%g ", v[i]);
+         }
+      }
+      printf("\n");
+   }
+
+   /* A uniform var may be used by both a vertex shader and a fragment
+    * shader.  We may need to update one or both shader's uniform here:
+    */
+   if (shProg->VertexProgram) {
+      /* convert uniform location to program parameter index */
+      GLint index = uniform->VertPos;
+      if (index >= 0) {
+         set_program_uniform(ctx, &shProg->VertexProgram->Base,
+                             index, offset, type, count, elems, values);
+      }
+   }
+
+   if (shProg->FragmentProgram) {
+      /* convert uniform location to program parameter index */
+      GLint index = uniform->FragPos;
+      if (index >= 0) {
+         set_program_uniform(ctx, &shProg->FragmentProgram->Base,
+                             index, offset, type, count, elems, values);
+      }
+   }
+
+   if (shProg->GeometryProgram) {
+      /* convert uniform location to program parameter index */
+      GLint index = uniform->GeomPos;
+      if (index >= 0) {
+         set_program_uniform(ctx, &shProg->GeometryProgram->Base,
+                             index, offset, type, count, elems, values);
+      }
+   }
+
+   uniform->Initialized = GL_TRUE;
+}
+
+
+/**
+ * Set a matrix-valued program parameter.
+ */
+static void
+set_program_uniform_matrix(struct gl_context *ctx, struct gl_program *program,
+                           GLuint index, GLuint offset,
+                           GLuint count, GLuint rows, GLuint cols,
+                           GLboolean transpose, const GLfloat *values)
+{
+   GLuint mat, row, col;
+   GLuint src = 0;
+   const struct gl_program_parameter * param = &program->Parameters->Parameters[index];
+   const GLuint slots = (param->Size + 3) / 4;
+   const GLint typeSize = _mesa_sizeof_glsl_type(param->DataType);
+   GLint nr, nc;
+
+   /* check that the number of rows, columns is correct */
+   get_matrix_dims(param->DataType, &nr, &nc);
+   if (rows != nr || cols != nc) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glUniformMatrix(matrix size mismatch)");
+      return;
+   }
+
+   if ((GLint) param->Size <= typeSize) {
+      /* non-array: count must be at most one; count == 0 is handled by the loop below */
+      if (count > 1) {
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glUniformMatrix(uniform is not an array)");
+         return;
+      }
+   }
+
+   /*
+    * Note: the _columns_ of a matrix are stored in program registers, not
+    * the rows.  So, the loops below look a little funny.
+    * XXX could optimize this a bit...
+    */
+
+   /* loop over matrices */
+   for (mat = 0; mat < count; mat++) {
+
+      /* each matrix: */
+      for (col = 0; col < cols; col++) {
+         GLfloat *v;
+         if (offset >= slots) {
+            /* Ignore writes beyond the end of (the used part of) an array */
+            return;
+         }
+         v = program->Parameters->ParameterValues[index + offset];
+         for (row = 0; row < rows; row++) {
+            if (transpose) {
+               v[row] = values[src + row * cols + col];
+            }
+            else {
+               v[row] = values[src + col * rows + row];
+            }
+         }
+
+         offset++;
+      }
+
+      src += rows * cols;  /* next matrix */
+   }
+}
+
+
+/**
+ * Called by glUniformMatrix*() functions.
+ * Note: cols=2, rows=4  ==>  array[2] of vec4
+ */
+void
+_mesa_uniform_matrix(struct gl_context *ctx, struct gl_shader_program *shProg,
+		     GLint cols, GLint rows,
+                     GLint location, GLsizei count,
+                     GLboolean transpose, const GLfloat *values)
+{
+   struct gl_uniform *uniform;
+   GLint offset;
+
+   if (!shProg || !shProg->LinkStatus) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+         "glUniformMatrix(program not linked)");
+      return;
+   }
+
+   if (location == -1)
+      return;   /* The standard specifies this as a no-op */
+
+   if (location < -1) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glUniformMatrix(location)");
+      return;
+   }
+
+   split_location_offset(&location, &offset);
+
+   if (location < 0 || location >= (GLint) shProg->Uniforms->NumUniforms) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glUniformMatrix(location)");
+      return;
+   }
+   if (values == NULL) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glUniformMatrix");
+      return;
+   }
+
+   FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS);
+
+   uniform = &shProg->Uniforms->Uniforms[location];
+
+   if (shProg->VertexProgram) {
+      /* convert uniform location to program parameter index */
+      GLint index = uniform->VertPos;
+      if (index >= 0) {
+         set_program_uniform_matrix(ctx, &shProg->VertexProgram->Base,
+                                    index, offset,
+                                    count, rows, cols, transpose, values);
+      }
+   }
+
+   if (shProg->FragmentProgram) {
+      /* convert uniform location to program parameter index */
+      GLint index = uniform->FragPos;
+      if (index >= 0) {
+         set_program_uniform_matrix(ctx, &shProg->FragmentProgram->Base,
+                                    index, offset,
+                                    count, rows, cols, transpose, values);
+      }
+   }
+
+   if (shProg->GeometryProgram) {
+      /* convert uniform location to program parameter index */
+      GLint index = uniform->GeomPos;
+      if (index >= 0) {
+         set_program_uniform_matrix(ctx, &shProg->GeometryProgram->Base,
+                                    index, offset,
+                                    count, rows, cols, transpose, values);
+      }
+   }
+
+   uniform->Initialized = GL_TRUE;
+}
+
+
+void GLAPIENTRY
+_mesa_Uniform1fARB(GLint location, GLfloat v0)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, &v0, GL_FLOAT);
+}
+
+void GLAPIENTRY
+_mesa_Uniform2fARB(GLint location, GLfloat v0, GLfloat v1)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLfloat v[2];
+   v[0] = v0;
+   v[1] = v1;
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_FLOAT_VEC2);
+}
+
+void GLAPIENTRY
+_mesa_Uniform3fARB(GLint location, GLfloat v0, GLfloat v1, GLfloat v2)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLfloat v[3];
+   v[0] = v0;
+   v[1] = v1;
+   v[2] = v2;
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_FLOAT_VEC3);
+}
+
+void GLAPIENTRY
+_mesa_Uniform4fARB(GLint location, GLfloat v0, GLfloat v1, GLfloat v2,
+                   GLfloat v3)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLfloat v[4];
+   v[0] = v0;
+   v[1] = v1;
+   v[2] = v2;
+   v[3] = v3;
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_FLOAT_VEC4);
+}
+
+void GLAPIENTRY
+_mesa_Uniform1iARB(GLint location, GLint v0)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, &v0, GL_INT);
+}
+
+void GLAPIENTRY
+_mesa_Uniform2iARB(GLint location, GLint v0, GLint v1)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLint v[2];
+   v[0] = v0;
+   v[1] = v1;
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_INT_VEC2);
+}
+
+void GLAPIENTRY
+_mesa_Uniform3iARB(GLint location, GLint v0, GLint v1, GLint v2)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLint v[3];
+   v[0] = v0;
+   v[1] = v1;
+   v[2] = v2;
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_INT_VEC3);
+}
+
+void GLAPIENTRY
+_mesa_Uniform4iARB(GLint location, GLint v0, GLint v1, GLint v2, GLint v3)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLint v[4];
+   v[0] = v0;
+   v[1] = v1;
+   v[2] = v2;
+   v[3] = v3;
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_INT_VEC4);
+}
+
+void GLAPIENTRY
+_mesa_Uniform1fvARB(GLint location, GLsizei count, const GLfloat * value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT);
+}
+
+void GLAPIENTRY
+_mesa_Uniform2fvARB(GLint location, GLsizei count, const GLfloat * value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT_VEC2);
+}
+
+void GLAPIENTRY
+_mesa_Uniform3fvARB(GLint location, GLsizei count, const GLfloat * value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT_VEC3);
+}
+
+void GLAPIENTRY
+_mesa_Uniform4fvARB(GLint location, GLsizei count, const GLfloat * value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_FLOAT_VEC4);
+}
+
+void GLAPIENTRY
+_mesa_Uniform1ivARB(GLint location, GLsizei count, const GLint * value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT);
+}
+
+void GLAPIENTRY
+_mesa_Uniform2ivARB(GLint location, GLsizei count, const GLint * value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT_VEC2);
+}
+
+void GLAPIENTRY
+_mesa_Uniform3ivARB(GLint location, GLsizei count, const GLint * value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT_VEC3);
+}
+
+void GLAPIENTRY
+_mesa_Uniform4ivARB(GLint location, GLsizei count, const GLint * value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_INT_VEC4);
+}
+
+
+/** OpenGL 3.0 GLuint-valued functions **/
+void GLAPIENTRY
+_mesa_Uniform1ui(GLint location, GLuint v0)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, &v0, GL_UNSIGNED_INT);
+}
+
+void GLAPIENTRY
+_mesa_Uniform2ui(GLint location, GLuint v0, GLuint v1)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLuint v[2];
+   v[0] = v0;
+   v[1] = v1;
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC2);
+}
+
+void GLAPIENTRY
+_mesa_Uniform3ui(GLint location, GLuint v0, GLuint v1, GLuint v2)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLuint v[3];
+   v[0] = v0;
+   v[1] = v1;
+   v[2] = v2;
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC3);
+}
+
+void GLAPIENTRY
+_mesa_Uniform4ui(GLint location, GLuint v0, GLuint v1, GLuint v2, GLuint v3)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   GLuint v[4];
+   v[0] = v0;
+   v[1] = v1;
+   v[2] = v2;
+   v[3] = v3;
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, 1, v, GL_UNSIGNED_INT_VEC4);
+}
+
+void GLAPIENTRY
+_mesa_Uniform1uiv(GLint location, GLsizei count, const GLuint *value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT);
+}
+
+void GLAPIENTRY
+_mesa_Uniform2uiv(GLint location, GLsizei count, const GLuint *value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC2);
+}
+
+void GLAPIENTRY
+_mesa_Uniform3uiv(GLint location, GLsizei count, const GLuint *value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC3);
+}
+
+void GLAPIENTRY
+_mesa_Uniform4uiv(GLint location, GLsizei count, const GLuint *value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform(ctx, ctx->Shader.ActiveProgram, location, count, value, GL_UNSIGNED_INT_VEC4);
+}
+
+
+
+void GLAPIENTRY
+_mesa_UniformMatrix2fvARB(GLint location, GLsizei count, GLboolean transpose,
+                          const GLfloat * value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,
+			2, 2, location, count, transpose, value);
+}
+
+void GLAPIENTRY
+_mesa_UniformMatrix3fvARB(GLint location, GLsizei count, GLboolean transpose,
+                          const GLfloat * value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,
+			3, 3, location, count, transpose, value);
+}
+
+void GLAPIENTRY
+_mesa_UniformMatrix4fvARB(GLint location, GLsizei count, GLboolean transpose,
+                          const GLfloat * value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,
+			4, 4, location, count, transpose, value);
+}
+
+
+/**
+ * Non-square UniformMatrix are OpenGL 2.1
+ */
+void GLAPIENTRY
+_mesa_UniformMatrix2x3fv(GLint location, GLsizei count, GLboolean transpose,
+                         const GLfloat *value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,
+			2, 3, location, count, transpose, value);
+}
+
+void GLAPIENTRY
+_mesa_UniformMatrix3x2fv(GLint location, GLsizei count, GLboolean transpose,
+                         const GLfloat *value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,
+			3, 2, location, count, transpose, value);
+}
+
+void GLAPIENTRY
+_mesa_UniformMatrix2x4fv(GLint location, GLsizei count, GLboolean transpose,
+                         const GLfloat *value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,
+			2, 4, location, count, transpose, value);
+}
+
+void GLAPIENTRY
+_mesa_UniformMatrix4x2fv(GLint location, GLsizei count, GLboolean transpose,
+                         const GLfloat *value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,
+			4, 2, location, count, transpose, value);
+}
+
+void GLAPIENTRY
+_mesa_UniformMatrix3x4fv(GLint location, GLsizei count, GLboolean transpose,
+                         const GLfloat *value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,
+			3, 4, location, count, transpose, value);
+}
+
+void GLAPIENTRY
+_mesa_UniformMatrix4x3fv(GLint location, GLsizei count, GLboolean transpose,
+                         const GLfloat *value)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_uniform_matrix(ctx, ctx->Shader.ActiveProgram,
+			4, 3, location, count, transpose, value);
+}
+
+
+void GLAPIENTRY
+_mesa_GetUniformfvARB(GLhandleARB program, GLint location, GLfloat *params)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_get_uniformfv(ctx, program, location, params);
+}
+
+
+void GLAPIENTRY
+_mesa_GetUniformivARB(GLhandleARB program, GLint location, GLint *params)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_get_uniformiv(ctx, program, location, params);
+}
+
+
+/* GL3 */
+void GLAPIENTRY
+_mesa_GetUniformuiv(GLhandleARB program, GLint location, GLuint *params)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_get_uniformuiv(ctx, program, location, params);
+}
+
+
+
+GLint GLAPIENTRY
+_mesa_GetUniformLocationARB(GLhandleARB programObj, const GLcharARB *name)
+{
+   struct gl_shader_program *shProg;
+
+   GET_CURRENT_CONTEXT(ctx);
+
+   shProg = _mesa_lookup_shader_program_err(ctx, programObj,
+					    "glGetUniformLocation");
+   if (!shProg)
+      return -1;
+
+   return _mesa_get_uniform_location(ctx, shProg, name);
+}
+
+
+void GLAPIENTRY
+_mesa_GetActiveUniformARB(GLhandleARB program, GLuint index,
+                          GLsizei maxLength, GLsizei * length, GLint * size,
+                          GLenum * type, GLcharARB * name)
+{
+   GET_CURRENT_CONTEXT(ctx);
+   _mesa_get_active_uniform(ctx, program, index, maxLength, length, size,
+                            type, name);
+}
+
+
+/**
+ * Plug in shader uniform-related functions into API dispatch table.
+ */
+void
+_mesa_init_shader_uniform_dispatch(struct _glapi_table *exec)
+{
+#if FEATURE_GL
+   SET_Uniform1fARB(exec, _mesa_Uniform1fARB);
+   SET_Uniform2fARB(exec, _mesa_Uniform2fARB);
+   SET_Uniform3fARB(exec, _mesa_Uniform3fARB);
+   SET_Uniform4fARB(exec, _mesa_Uniform4fARB);
+   SET_Uniform1iARB(exec, _mesa_Uniform1iARB);
+   SET_Uniform2iARB(exec, _mesa_Uniform2iARB);
+   SET_Uniform3iARB(exec, _mesa_Uniform3iARB);
+   SET_Uniform4iARB(exec, _mesa_Uniform4iARB);
+   SET_Uniform1fvARB(exec, _mesa_Uniform1fvARB);
+   SET_Uniform2fvARB(exec, _mesa_Uniform2fvARB);
+   SET_Uniform3fvARB(exec, _mesa_Uniform3fvARB);
+   SET_Uniform4fvARB(exec, _mesa_Uniform4fvARB);
+   SET_Uniform1ivARB(exec, _mesa_Uniform1ivARB);
+   SET_Uniform2ivARB(exec, _mesa_Uniform2ivARB);
+   SET_Uniform3ivARB(exec, _mesa_Uniform3ivARB);
+   SET_Uniform4ivARB(exec, _mesa_Uniform4ivARB);
+   SET_UniformMatrix2fvARB(exec, _mesa_UniformMatrix2fvARB);
+   SET_UniformMatrix3fvARB(exec, _mesa_UniformMatrix3fvARB);
+   SET_UniformMatrix4fvARB(exec, _mesa_UniformMatrix4fvARB);
+
+   SET_GetActiveUniformARB(exec, _mesa_GetActiveUniformARB);
+   SET_GetUniformLocationARB(exec, _mesa_GetUniformLocationARB);
+   SET_GetUniformfvARB(exec, _mesa_GetUniformfvARB);
+   SET_GetUniformivARB(exec, _mesa_GetUniformivARB);
+
+   /* OpenGL 2.1 */
+   SET_UniformMatrix2x3fv(exec, _mesa_UniformMatrix2x3fv);
+   SET_UniformMatrix3x2fv(exec, _mesa_UniformMatrix3x2fv);
+   SET_UniformMatrix2x4fv(exec, _mesa_UniformMatrix2x4fv);
+   SET_UniformMatrix4x2fv(exec, _mesa_UniformMatrix4x2fv);
+   SET_UniformMatrix3x4fv(exec, _mesa_UniformMatrix3x4fv);
+   SET_UniformMatrix4x3fv(exec, _mesa_UniformMatrix4x3fv);
+
+   /* OpenGL 3.0 */
+   /* XXX finish dispatch */
+   SET_Uniform1uiEXT(exec, _mesa_Uniform1ui);
+   SET_Uniform2uiEXT(exec, _mesa_Uniform2ui);
+   SET_Uniform3uiEXT(exec, _mesa_Uniform3ui);
+   SET_Uniform4uiEXT(exec, _mesa_Uniform4ui);
+   SET_Uniform1uivEXT(exec, _mesa_Uniform1uiv);
+   SET_Uniform2uivEXT(exec, _mesa_Uniform2uiv);
+   SET_Uniform3uivEXT(exec, _mesa_Uniform3uiv);
+   SET_Uniform4uivEXT(exec, _mesa_Uniform4uiv);
+   SET_GetUniformuivEXT(exec, _mesa_GetUniformuiv);
+
+
+#endif /* FEATURE_GL */
+}