these are now in the shader/ directory too

1 files changed, 0 insertions, 1271 deletions

diff --git a/src/mesa/main/program.c b/src/mesa/main/program.c
deleted file mode 100644
index 6c1e362322..0000000000
--- a/src/mesa/main/program.c
+++ /dev/null
@@ -1,1271 +0,0 @@
-/*
- * Mesa 3-D graphics library
- * Version:  6.0
- *
- * Copyright (C) 1999-2004  Brian Paul   All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/**
- * \file program.c
- * Vertex and fragment program support functions.
- * \author Brian Paul
- */
-
-
-#include "glheader.h"
-#include "context.h"
-#include "hash.h"
-#include "imports.h"
-#include "macros.h"
-#include "mtypes.h"
-#include "program.h"
-#include "nvfragparse.h"
-#include "nvfragprog.h"
-#include "nvvertparse.h"
-
-
-/**********************************************************************/
-/* Utility functions                                                  */
-/**********************************************************************/
-
-
-/**
- * Init context's program state
- */
-void
-_mesa_init_program(GLcontext *ctx)
-{
-   GLuint i;
-
-   ctx->Program.ErrorPos = -1;
-   ctx->Program.ErrorString = _mesa_strdup("");
-
-#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
-   ctx->VertexProgram.Enabled = GL_FALSE;
-   ctx->VertexProgram.PointSizeEnabled = GL_FALSE;
-   ctx->VertexProgram.TwoSideEnabled = GL_FALSE;
-   ctx->VertexProgram.Current = NULL;
-   ctx->VertexProgram.Current = (struct vertex_program *) ctx->Shared->DefaultVertexProgram;
-   assert(ctx->VertexProgram.Current);
-   ctx->VertexProgram.Current->Base.RefCount++;
-   for (i = 0; i < MAX_NV_VERTEX_PROGRAM_PARAMS / 4; i++) {
-      ctx->VertexProgram.TrackMatrix[i] = GL_NONE;
-      ctx->VertexProgram.TrackMatrixTransform[i] = GL_IDENTITY_NV;
-   }
-#endif
-
-#if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program
-   ctx->FragmentProgram.Enabled = GL_FALSE;
-   ctx->FragmentProgram.Current = (struct fragment_program *) ctx->Shared->DefaultFragmentProgram;
-   assert(ctx->FragmentProgram.Current);
-   ctx->FragmentProgram.Current->Base.RefCount++;
-#endif
-}
-
-
-/**
- * Set the vertex/fragment program error state (position and error string).
- * This is generally called from within the parsers.
- */
-void
-_mesa_set_program_error(GLcontext *ctx, GLint pos, const char *string)
-{
-   ctx->Program.ErrorPos = pos;
-   _mesa_free((void *) ctx->Program.ErrorString);
-   if (!string)
-      string = "";
-   ctx->Program.ErrorString = _mesa_strdup(string);
-}
-
-
-/**
- * Find the line number and column for 'pos' within 'string'.
- * Return a copy of the line which contains 'pos'.  Free the line with
- * _mesa_free().
- * \param string  the program string
- * \param pos     the position within the string
- * \param line    returns the line number corresponding to 'pos'.
- * \param col     returns the column number corresponding to 'pos'.
- * \return copy of the line containing 'pos'.
- */
-const GLubyte *
-_mesa_find_line_column(const GLubyte *string, const GLubyte *pos,
-                       GLint *line, GLint *col)
-{
-   const GLubyte *lineStart = string;
-   const GLubyte *p = string;
-   GLubyte *s;
-   int len;
-
-   *line = 1;
-
-   while (p != pos) {
-      if (*p == (GLubyte) '\n') {
-         (*line)++;
-         lineStart = p + 1;
-      }
-      p++;
-   }
-
-   *col = (pos - lineStart) + 1;
-
-   /* return copy of this line */
-   while (*p != 0 && *p != '\n')
-      p++;
-   len = p - lineStart;
-   s = (GLubyte *) _mesa_malloc(len + 1);
-   _mesa_memcpy(s, lineStart, len);
-   s[len] = 0;
-
-   return s;
-}
-
-
-static struct program * _mesa_init_program_struct( GLcontext *ctx, 
-						   struct program *prog,
-						   GLenum target, GLuint id)
-{
-   if (prog) {
-      prog->Id = id;
-      prog->Target = target;
-      prog->Resident = GL_TRUE;
-      prog->RefCount = 1;
-   }
-
-   return prog;
-}
-
-struct program * _mesa_init_fragment_program( GLcontext *ctx, 
-					      struct fragment_program *prog,
-					      GLenum target, GLuint id)
-{
-   if (prog) 
-      return _mesa_init_program_struct( ctx, &prog->Base, target, id );
-   else
-      return NULL;
-}
-
-struct program * _mesa_init_vertex_program( GLcontext *ctx, 
-					    struct vertex_program *prog,
-					    GLenum target, GLuint id)
-{
-   if (prog) 
-      return _mesa_init_program_struct( ctx, &prog->Base, target, id );
-   else
-      return NULL;
-}
-
-
-/**
- * Allocate and initialize a new fragment/vertex program object but
- * don't put it into the program hash table.  Called via
- * ctx->Driver.NewProgram.  May be overridden (ie. replaced) by a
- * device driver function to implement OO deriviation with additional
- * types not understood by this function.
- * 
- * \param ctx  context
- * \param id   program id/number
- * \param target  program target/type
- * \return  pointer to new program object
- */
-struct program *
-_mesa_new_program(GLcontext *ctx, GLenum target, GLuint id)
-{
-   switch (target) {
-   case GL_VERTEX_PROGRAM_ARB: /* == GL_VERTEX_PROGRAM_NV */
-      return _mesa_init_vertex_program( ctx, CALLOC_STRUCT(vertex_program),
-					target, id );
-
-   case GL_FRAGMENT_PROGRAM_NV:
-   case GL_FRAGMENT_PROGRAM_ARB:
-      return _mesa_init_fragment_program( ctx, CALLOC_STRUCT(fragment_program),
-					  target, id );
-
-   default:
-      _mesa_problem(ctx, "bad target in _mesa_new_program");
-      return NULL;
-   }
-}
-
-
-/**
- * Delete a program and remove it from the hash table, ignoring the
- * reference count.
- * Called via ctx->Driver.DeleteProgram.  May be wrapped (OO deriviation)
- * by a device driver function.
- */
-void
-_mesa_delete_program(GLcontext *ctx, struct program *prog)
-{
-   ASSERT(prog);
-
-   if (prog->String)
-      _mesa_free(prog->String);
-   if (prog->Target == GL_VERTEX_PROGRAM_NV ||
-       prog->Target == GL_VERTEX_STATE_PROGRAM_NV) {
-      struct vertex_program *vprog = (struct vertex_program *) prog;
-      if (vprog->Instructions)
-         _mesa_free(vprog->Instructions);
-   }
-   else if (prog->Target == GL_FRAGMENT_PROGRAM_NV ||
-            prog->Target == GL_FRAGMENT_PROGRAM_ARB) {
-      struct fragment_program *fprog = (struct fragment_program *) prog;
-      if (fprog->Instructions)
-         _mesa_free(fprog->Instructions);
-      if (fprog->Parameters) {
-         _mesa_free_parameter_list(fprog->Parameters);
-      }
-   }
-   _mesa_free(prog);
-}
-
-
-
-/**********************************************************************/
-/* Program parameter functions                                        */
-/**********************************************************************/
-
-struct program_parameter_list *
-_mesa_new_parameter_list(void)
-{
-   return (struct program_parameter_list *)
-      _mesa_calloc(sizeof(struct program_parameter_list));
-}
-
-
-/**
- * Free a parameter list and all its parameters
- */
-void
-_mesa_free_parameter_list(struct program_parameter_list *paramList)
-{
-   _mesa_free_parameters(paramList);
-   _mesa_free(paramList);
-}
-
-
-/**
- * Free all the parameters in the given list, but don't free the
- * paramList structure itself.
- */
-void
-_mesa_free_parameters(struct program_parameter_list *paramList)
-{
-   GLuint i;
-   for (i = 0; i < paramList->NumParameters; i++) {
-      _mesa_free((void *) paramList->Parameters[i].Name);
-   }
-   _mesa_free(paramList->Parameters);
-   paramList->NumParameters = 0;
-   paramList->Parameters = NULL;
-}
-
-
-/**
- * Helper function used by the functions below.
- */
-static GLint
-add_parameter(struct program_parameter_list *paramList,
-              const char *name, const GLfloat values[4],
-              enum parameter_type type)
-{
-   const GLuint n = paramList->NumParameters;
-
-   paramList->Parameters = (struct program_parameter *)
-      _mesa_realloc(paramList->Parameters,
-                    n * sizeof(struct program_parameter),
-                    (n + 1) * sizeof(struct program_parameter));
-   if (!paramList->Parameters) {
-      /* out of memory */
-      paramList->NumParameters = 0;
-      return -1;
-   }
-   else {
-      paramList->NumParameters = n + 1;
-      paramList->Parameters[n].Name = _mesa_strdup(name);
-      paramList->Parameters[n].Type = type;
-      if (values)
-         COPY_4V(paramList->Parameters[n].Values, values);
-      return (GLint) n;
-   }
-}
-
-
-/**
- * Add a new named program parameter (Ex: NV_fragment_program DEFINE statement)
- * \return index of the new entry in the parameter list
- */
-GLint
-_mesa_add_named_parameter(struct program_parameter_list *paramList,
-                          const char *name, const GLfloat values[4])
-{
-   return add_parameter(paramList, name, values, NAMED_PARAMETER);
-}
-
-
-/**
- * Add a new unnamed constant to the parameter list.
- * \param paramList - the parameter list
- * \param values - four float values
- * \return index of the new parameter.
- */
-GLint
-_mesa_add_named_constant(struct program_parameter_list *paramList,
-                         const char *name, const GLfloat values[4])
-{
-   return add_parameter(paramList, name, values, CONSTANT);
-}
-
-
-/**
- * Add a new unnamed constant to the parameter list.
- * \param paramList - the parameter list
- * \param values - four float values
- * \return index of the new parameter.
- */
-GLint
-_mesa_add_unnamed_constant(struct program_parameter_list *paramList,
-                           const GLfloat values[4])
-{
-   /* generate a new dummy name */
-   static GLuint n = 0;
-   char name[20];
-   _mesa_sprintf(name, "constant%d", n);
-   n++;
-   /* store it */
-   return add_parameter(paramList, name, values, CONSTANT);
-}
-
-
-/**
- * Add a new state reference to the parameter list.
- * \param paramList - the parameter list
- * \param state     - an array of 6 state tokens
- *
- * \return index of the new parameter.
- */
-GLint
-_mesa_add_state_reference(struct program_parameter_list *paramList,
-                          GLint *stateTokens)
-{
-   /* XXX Should we parse <stateString> here and produce the parameter's
-    * list of STATE_* tokens here, or in the parser?
-    */
-   GLint a, idx;
-
-   idx = add_parameter(paramList, "Some State", NULL, STATE);
-	
-   for (a=0; a<6; a++)
-      paramList->Parameters[idx].StateIndexes[a] = (enum state_index) stateTokens[a];
-
-   return idx;
-}
-
-
-/**
- * Lookup a parameter value by name in the given parameter list.
- * \return pointer to the float[4] values.
- */
-GLfloat *
-_mesa_lookup_parameter_value(struct program_parameter_list *paramList,
-                             GLsizei nameLen, const char *name)
-{
-   GLuint i;
-
-   if (!paramList)
-      return NULL;
-
-   if (nameLen == -1) {
-      /* name is null-terminated */
-      for (i = 0; i < paramList->NumParameters; i++) {
-         if (_mesa_strcmp(paramList->Parameters[i].Name, name) == 0)
-            return paramList->Parameters[i].Values;
-      }
-   }
-   else {
-      /* name is not null-terminated, use nameLen */
-      for (i = 0; i < paramList->NumParameters; i++) {
-         if (_mesa_strncmp(paramList->Parameters[i].Name, name, nameLen) == 0
-             && _mesa_strlen(paramList->Parameters[i].Name) == (size_t)nameLen)
-            return paramList->Parameters[i].Values;
-      }
-   }
-   return NULL;
-}
-
-
-/**
- * Lookup a parameter index by name in the given parameter list.
- * \return index of parameter in the list.
- */
-GLint
-_mesa_lookup_parameter_index(struct program_parameter_list *paramList,
-                             GLsizei nameLen, const char *name)
-{
-   GLint i;
-
-   if (!paramList)
-      return -1;
-
-   if (nameLen == -1) {
-      /* name is null-terminated */
-      for (i = 0; i < (GLint) paramList->NumParameters; i++) {
-         if (_mesa_strcmp(paramList->Parameters[i].Name, name) == 0)
-            return i;
-      }
-   }
-   else {
-      /* name is not null-terminated, use nameLen */
-      for (i = 0; i < (GLint) paramList->NumParameters; i++) {
-         if (_mesa_strncmp(paramList->Parameters[i].Name, name, nameLen) == 0
-             && _mesa_strlen(paramList->Parameters[i].Name) == (size_t)nameLen)
-            return i;
-      }
-   }
-   return -1;
-}
-
-
-/**
- * Use the list of tokens in the state[] array to find global GL state
- * and return it in <value>.  Usually, four values are returned in <value>
- * but matrix queries may return as many as 16 values.
- * This function is used for ARB vertex/fragment programs.
- * The program parser will produce the state[] values.
- */
-static void
-_mesa_fetch_state(GLcontext *ctx, const enum state_index state[],
-                  GLfloat *value)
-{
-   switch (state[0]) {
-   case STATE_MATERIAL:
-      {
-         /* state[1] is either 0=front or 1=back side */
-         const GLuint face = (GLuint) state[1];
-         /* state[2] is the material attribute */
-         switch (state[2]) {
-         case STATE_AMBIENT:
-            if (face == 0)
-               COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_AMBIENT]);
-            else
-               COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_AMBIENT]);
-            return;
-         case STATE_DIFFUSE:
-            if (face == 0)
-               COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE]);
-            else
-               COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_DIFFUSE]);
-            return;
-         case STATE_SPECULAR:
-            if (face == 0)
-               COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_SPECULAR]);
-            else
-               COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_SPECULAR]);
-            return;
-         case STATE_EMISSION:
-            if (face == 0)
-               COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_EMISSION]);
-            else
-               COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_EMISSION]);
-            return;
-         case STATE_SHININESS:
-            if (face == 0)
-               value[0] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_SHININESS][0];
-            else
-               value[0] = ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_SHININESS][0];
-            value[1] = 0.0F;
-            value[2] = 0.0F;
-            value[3] = 1.0F;
-            return;
-         default:
-            _mesa_problem(ctx, "Invalid material state in fetch_state");
-            return;
-         }
-      };
-      return;
-   case STATE_LIGHT:
-      {
-         /* state[1] is the light number */
-         const GLuint ln = (GLuint) state[1];
-         /* state[2] is the light attribute */
-         switch (state[2]) {
-         case STATE_AMBIENT:
-            COPY_4V(value, ctx->Light.Light[ln].Ambient);
-            return;
-         case STATE_DIFFUSE:
-            COPY_4V(value, ctx->Light.Light[ln].Diffuse);
-            return;
-         case STATE_SPECULAR:
-            COPY_4V(value, ctx->Light.Light[ln].Specular);
-            return;
-         case STATE_POSITION:
-            COPY_4V(value, ctx->Light.Light[ln].EyePosition);
-            return;
-         case STATE_ATTENUATION:
-            value[0] = ctx->Light.Light[ln].ConstantAttenuation;
-            value[1] = ctx->Light.Light[ln].LinearAttenuation;
-            value[2] = ctx->Light.Light[ln].QuadraticAttenuation;
-            value[3] = ctx->Light.Light[ln].SpotExponent;
-            return;
-         case STATE_SPOT_DIRECTION:
-            COPY_4V(value, ctx->Light.Light[ln].EyeDirection);
-            return;
-         case STATE_HALF:
-            {
-               GLfloat eye_z[] = {0, 0, 1};
-					
-               /* Compute infinite half angle vector:
-                *   half-vector = light_position + (0, 0, 1) 
-                * and then normalize.  w = 0
-					 *
-					 * light.EyePosition.w should be 0 for infinite lights.
-                */
-					ADD_3V(value, eye_z, ctx->Light.Light[ln].EyePosition);
-					NORMALIZE_3FV(value);
-					value[3] = 0;
-            }						  
-            return;
-         default:
-            _mesa_problem(ctx, "Invalid light state in fetch_state");
-            return;
-         }
-      }
-      return;
-   case STATE_LIGHTMODEL_AMBIENT:
-      COPY_4V(value, ctx->Light.Model.Ambient);
-      return;
-   case STATE_LIGHTMODEL_SCENECOLOR:
-      if (state[1] == 0) {
-         /* front */
-         GLint i;
-         for (i = 0; i < 4; i++) {
-            value[i] = ctx->Light.Model.Ambient[i]
-               * ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_AMBIENT][i]
-               + ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_EMISSION][i];
-         }
-      }
-      else {
-         /* back */
-         GLint i;
-         for (i = 0; i < 4; i++) {
-            value[i] = ctx->Light.Model.Ambient[i]
-               * ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_AMBIENT][i]
-               + ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_EMISSION][i];
-         }
-      }
-      return;
-   case STATE_LIGHTPROD:
-      {
-         const GLuint ln = (GLuint) state[1];
-         const GLuint face = (GLuint) state[2];
-         GLint i;
-         ASSERT(face == 0 || face == 1);
-         switch (state[3]) {
-            case STATE_AMBIENT:
-               for (i = 0; i < 3; i++) {
-                  value[i] = ctx->Light.Light[ln].Ambient[i] *
-                     ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_AMBIENT+face][i];
-               }
-               /* [3] = material alpha */
-               value[3] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE+face][3];
-               return;
-            case STATE_DIFFUSE:
-               for (i = 0; i < 3; i++) {
-                  value[i] = ctx->Light.Light[ln].Diffuse[i] *
-                     ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE+face][i];
-               }
-               /* [3] = material alpha */
-               value[3] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE+face][3];
-               return;
-            case STATE_SPECULAR:
-               for (i = 0; i < 3; i++) {
-                  value[i] = ctx->Light.Light[ln].Specular[i] *
-                     ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_SPECULAR+face][i];
-               }
-               /* [3] = material alpha */
-               value[3] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE+face][3];
-               return;
-            default:
-               _mesa_problem(ctx, "Invalid lightprod state in fetch_state");
-               return;
-         }
-      }
-      return;
-   case STATE_TEXGEN:
-      {
-         /* state[1] is the texture unit */
-         const GLuint unit = (GLuint) state[1];
-         /* state[2] is the texgen attribute */
-         switch (state[2]) {
-         case STATE_TEXGEN_EYE_S:
-            COPY_4V(value, ctx->Texture.Unit[unit].EyePlaneS);
-            return;
-         case STATE_TEXGEN_EYE_T:
-            COPY_4V(value, ctx->Texture.Unit[unit].EyePlaneT);
-            return;
-         case STATE_TEXGEN_EYE_R:
-            COPY_4V(value, ctx->Texture.Unit[unit].EyePlaneR);
-            return;
-         case STATE_TEXGEN_EYE_Q:
-            COPY_4V(value, ctx->Texture.Unit[unit].EyePlaneQ);
-            return;
-         case STATE_TEXGEN_OBJECT_S:
-            COPY_4V(value, ctx->Texture.Unit[unit].ObjectPlaneS);
-            return;
-         case STATE_TEXGEN_OBJECT_T:
-            COPY_4V(value, ctx->Texture.Unit[unit].ObjectPlaneT);
-            return;
-         case STATE_TEXGEN_OBJECT_R:
-            COPY_4V(value, ctx->Texture.Unit[unit].ObjectPlaneR);
-            return;
-         case STATE_TEXGEN_OBJECT_Q:
-            COPY_4V(value, ctx->Texture.Unit[unit].ObjectPlaneQ);
-            return;
-         default:
-            _mesa_problem(ctx, "Invalid texgen state in fetch_state");
-            return;
-         }
-      }
-      return;
-   case STATE_TEXENV_COLOR:
-      {		
-         /* state[1] is the texture unit */
-         const GLuint unit = (GLuint) state[1];
-         COPY_4V(value, ctx->Texture.Unit[unit].EnvColor);
-      }			
-      return;
-   case STATE_FOG_COLOR:
-      COPY_4V(value, ctx->Fog.Color);
-      return;
-   case STATE_FOG_PARAMS:
-      value[0] = ctx->Fog.Density;
-      value[1] = ctx->Fog.Start;
-      value[2] = ctx->Fog.End;
-      value[3] = 1.0F / (ctx->Fog.End - ctx->Fog.Start);
-      return;
-   case STATE_CLIPPLANE:
-      {
-         const GLuint plane = (GLuint) state[1];
-         COPY_4V(value, ctx->Transform.EyeUserPlane[plane]);
-      }
-      return;
-   case STATE_POINT_SIZE:
-      value[0] = ctx->Point.Size;
-      value[1] = ctx->Point.MinSize;
-      value[2] = ctx->Point.MaxSize;
-      value[3] = ctx->Point.Threshold;
-      return;
-   case STATE_POINT_ATTENUATION:
-      value[0] = ctx->Point.Params[0];
-      value[1] = ctx->Point.Params[1];
-      value[2] = ctx->Point.Params[2];
-      value[3] = 1.0F;
-      return;
-   case STATE_MATRIX:
-      {
-         /* state[1] = modelview, projection, texture, etc. */
-         /* state[2] = which texture matrix or program matrix */
-         /* state[3] = first column to fetch */
-         /* state[4] = last column to fetch */
-         /* state[5] = transpose, inverse or invtrans */
-
-         const GLmatrix *matrix;
-         const enum state_index mat = state[1];
-         const GLuint index = (GLuint) state[2];
-         const GLuint first = (GLuint) state[3];
-         const GLuint last = (GLuint) state[4];
-         const enum state_index modifier = state[5];
-         const GLfloat *m;
-         GLuint row, i;
-         if (mat == STATE_MODELVIEW) {
-            matrix = ctx->ModelviewMatrixStack.Top;
-         }
-         else if (mat == STATE_PROJECTION) {
-            matrix = ctx->ProjectionMatrixStack.Top;
-         }
-         else if (mat == STATE_MVP) {
-            matrix = &ctx->_ModelProjectMatrix;
-         }
-         else if (mat == STATE_TEXTURE) {
-            matrix = ctx->TextureMatrixStack[index].Top;
-         }
-         else if (mat == STATE_PROGRAM) {
-            matrix = ctx->ProgramMatrixStack[index].Top;
-         }
-         else {
-            _mesa_problem(ctx, "Bad matrix name in _mesa_fetch_state()");
-            return;
-         }
-         if (modifier == STATE_MATRIX_INVERSE ||
-             modifier == STATE_MATRIX_INVTRANS) {
-            /* XXX be sure inverse is up to date */
-            m = matrix->inv;
-         }
-         else {
-            m = matrix->m;
-         }
-         if (modifier == STATE_MATRIX_TRANSPOSE ||
-             modifier == STATE_MATRIX_INVTRANS) {
-            for (i = 0, row = first; row <= last; row++) {
-               value[i++] = m[row * 4 + 0];
-               value[i++] = m[row * 4 + 1];
-               value[i++] = m[row * 4 + 2];
-               value[i++] = m[row * 4 + 3];
-            }
-         }
-         else {
-            for (i = 0, row = first; row <= last; row++) {
-               value[i++] = m[row + 0];
-               value[i++] = m[row + 4];
-               value[i++] = m[row + 8];
-               value[i++] = m[row + 12];
-            }
-         }
-      }
-      return;
-   case STATE_DEPTH_RANGE:
-      value[0] = ctx->Viewport.Near;                     /* near       */		
-      value[1] = ctx->Viewport.Far;                      /* far        */		
-      value[2] = ctx->Viewport.Far - ctx->Viewport.Near; /* far - near */		
-      value[3] = 0;		
-      return;
-   case STATE_FRAGMENT_PROGRAM:
-      {
-         /* state[1] = {STATE_ENV, STATE_LOCAL} */
-         /* state[2] = parameter index          */
-         int idx = state[2];				  
-
-         switch (state[1]) {
-            case STATE_ENV:
-               COPY_4V(value, ctx->FragmentProgram.Parameters[idx]);						  
-               break;
-
-            case STATE_LOCAL:
-               COPY_4V(value, ctx->FragmentProgram.Current->Base.LocalParams[idx]);
-               break;				
-            default:
-               _mesa_problem(ctx, "Bad state switch in _mesa_fetch_state()");
-               return;
-         }				  
-      }			
-      return;
-		
-   case STATE_VERTEX_PROGRAM:
-      {		
-         /* state[1] = {STATE_ENV, STATE_LOCAL} */
-         /* state[2] = parameter index          */
-         int idx = state[2];				  
-			
-         switch (state[1]) {
-            case STATE_ENV:
-               COPY_4V(value, ctx->VertexProgram.Parameters[idx]);						  
-               break;
-
-            case STATE_LOCAL:
-               COPY_4V(value, ctx->VertexProgram.Current->Base.LocalParams[idx]);
-               break;				
-            default:
-               _mesa_problem(ctx, "Bad state switch in _mesa_fetch_state()");
-               return;
-         }				  
-      }			
-      return;
-   default:
-      _mesa_problem(ctx, "Invalid state in fetch_state");
-      return;
-   }
-}
-
-
-/**
- * Loop over all the parameters in a parameter list.  If the parameter
- * is a GL state reference, look up the current value of that state
- * variable and put it into the parameter's Value[4] array.
- * This would be called at glBegin time when using a fragment program.
- */
-void
-_mesa_load_state_parameters(GLcontext *ctx,
-                            struct program_parameter_list *paramList)
-{
-   GLuint i;
-
-   if (!paramList)
-      return;
-
-   for (i = 0; i < paramList->NumParameters; i++) {
-      if (paramList->Parameters[i].Type == STATE) {
-         _mesa_fetch_state(ctx, paramList->Parameters[i].StateIndexes,
-                           paramList->Parameters[i].Values);
-      }
-   }
-}
-
-
-
-/**********************************************************************/
-/* API functions                                                      */
-/**********************************************************************/
-
-
-/**
- * Bind a program (make it current)
- * \note Called from the GL API dispatcher by both glBindProgramNV
- * and glBindProgramARB.
- */
-void GLAPIENTRY
-_mesa_BindProgram(GLenum target, GLuint id)
-{
-   struct program *prog;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   FLUSH_VERTICES(ctx, _NEW_PROGRAM);
-
-   if ((target == GL_VERTEX_PROGRAM_NV
-        && ctx->Extensions.NV_vertex_program) ||
-       (target == GL_VERTEX_PROGRAM_ARB
-        && ctx->Extensions.ARB_vertex_program)) {
-      if (ctx->VertexProgram.Current &&
-          ctx->VertexProgram.Current->Base.Id == id)
-         return;
-      /* decrement refcount on previously bound vertex program */
-      if (ctx->VertexProgram.Current) {
-         ctx->VertexProgram.Current->Base.RefCount--;
-         /* and delete if refcount goes below one */
-         if (ctx->VertexProgram.Current->Base.RefCount <= 0) {
-            ctx->Driver.DeleteProgram(ctx, &(ctx->VertexProgram.Current->Base));
-            _mesa_HashRemove(ctx->Shared->Programs, id);
-         }
-      }
-   }
-   else if ((target == GL_FRAGMENT_PROGRAM_NV
-             && ctx->Extensions.NV_fragment_program) ||
-            (target == GL_FRAGMENT_PROGRAM_ARB
-             && ctx->Extensions.ARB_fragment_program)) {
-      if (ctx->FragmentProgram.Current &&
-          ctx->FragmentProgram.Current->Base.Id == id)
-         return;
-      /* decrement refcount on previously bound fragment program */
-      if (ctx->FragmentProgram.Current) {
-         ctx->FragmentProgram.Current->Base.RefCount--;
-         /* and delete if refcount goes below one */
-         if (ctx->FragmentProgram.Current->Base.RefCount <= 0) {
-            ctx->Driver.DeleteProgram(ctx, &(ctx->FragmentProgram.Current->Base));
-            _mesa_HashRemove(ctx->Shared->Programs, id);
-         }
-      }
-   }
-   else {
-      _mesa_error(ctx, GL_INVALID_ENUM, "glBindProgramNV/ARB(target)");
-      return;
-   }
-
-   /* NOTE: binding to a non-existant program is not an error.
-    * That's supposed to be caught in glBegin.
-    */
-   if (id == 0) {
-      /* default program */
-      prog = NULL;
-      if (target == GL_VERTEX_PROGRAM_NV || target == GL_VERTEX_PROGRAM_ARB)
-         prog = ctx->Shared->DefaultVertexProgram;
-      else
-         prog = ctx->Shared->DefaultFragmentProgram;
-   }
-   else {
-      prog = (struct program *) _mesa_HashLookup(ctx->Shared->Programs, id);
-      if (prog) {
-         if (prog->Target == 0) {
-            /* prog was allocated with glGenProgramsNV */
-            prog->Target = target;
-         }
-         else if (prog->Target != target) {
-            _mesa_error(ctx, GL_INVALID_OPERATION,
-                        "glBindProgramNV/ARB(target mismatch)");
-            return;
-         }
-      }
-      else {
-         /* allocate a new program now */
-         prog = ctx->Driver.NewProgram(ctx, target, id);
-         if (!prog) {
-            _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindProgramNV/ARB");
-            return;
-         }
-         prog->Id = id;
-         prog->Target = target;
-         prog->Resident = GL_TRUE;
-         prog->RefCount = 1;
-         _mesa_HashInsert(ctx->Shared->Programs, id, prog);
-      }
-   }
-
-   /* bind now */
-   if (target == GL_VERTEX_PROGRAM_NV || target == GL_VERTEX_PROGRAM_ARB) {
-      ctx->VertexProgram.Current = (struct vertex_program *) prog;
-   }
-   else if (target == GL_FRAGMENT_PROGRAM_NV || target == GL_FRAGMENT_PROGRAM_ARB) {
-      ctx->FragmentProgram.Current = (struct fragment_program *) prog;
-   }
-
-   if (prog)
-      prog->RefCount++;
-
-   if (ctx->Driver.BindProgram)
-      ctx->Driver.BindProgram(ctx, target, prog);
-}
-
-
-/**
- * Delete a list of programs.
- * \note Not compiled into display lists.
- * \note Called by both glDeleteProgramsNV and glDeleteProgramsARB.
- */
-void GLAPIENTRY 
-_mesa_DeletePrograms(GLsizei n, const GLuint *ids)
-{
-   GLint i;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
-   if (n < 0) {
-      _mesa_error( ctx, GL_INVALID_VALUE, "glDeleteProgramsNV" );
-      return;
-   }
-
-   for (i = 0; i < n; i++) {
-      if (ids[i] != 0) {
-         struct program *prog = (struct program *)
-            _mesa_HashLookup(ctx->Shared->Programs, ids[i]);
-         if (prog) {
-            if (prog->Target == GL_VERTEX_PROGRAM_NV ||
-                prog->Target == GL_VERTEX_STATE_PROGRAM_NV) {
-               if (ctx->VertexProgram.Current &&
-                   ctx->VertexProgram.Current->Base.Id == ids[i]) {
-                  /* unbind this currently bound program */
-                  _mesa_BindProgram(prog->Target, 0);
-               }
-            }
-            else if (prog->Target == GL_FRAGMENT_PROGRAM_NV ||
-                     prog->Target == GL_FRAGMENT_PROGRAM_ARB) {
-               if (ctx->FragmentProgram.Current &&
-                   ctx->FragmentProgram.Current->Base.Id == ids[i]) {
-                  /* unbind this currently bound program */
-                  _mesa_BindProgram(prog->Target, 0);
-               }
-            }
-            else {
-               _mesa_problem(ctx, "bad target in glDeleteProgramsNV");
-               return;
-            }
-            prog->RefCount--;
-            if (prog->RefCount <= 0) {
-               ctx->Driver.DeleteProgram(ctx, prog);
-            }
-         }
-	 else {
-	    /* This is necessary as we can't tell from HashLookup
-	     * whether the entry exists with data == 0, or if it
-	     * doesn't exist at all.  As GenPrograms creates the first
-	     * case below, need to call Remove() to avoid memory leak:
-	     */
-            _mesa_HashRemove(ctx->Shared->Programs, ids[i]);
-	 }
-      }
-   }
-}
-
-
-/**
- * Generate a list of new program identifiers.
- * \note Not compiled into display lists.
- * \note Called by both glGenProgramsNV and glGenProgramsARB.
- */
-void GLAPIENTRY
-_mesa_GenPrograms(GLsizei n, GLuint *ids)
-{
-   GLuint first;
-   GLuint i;
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END(ctx);
-
-   if (n < 0) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glGenPrograms");
-      return;
-   }
-
-   if (!ids)
-      return;
-
-   first = _mesa_HashFindFreeKeyBlock(ctx->Shared->Programs, n);
-
-   for (i = 0; i < (GLuint) n; i++) {
-      _mesa_HashInsert(ctx->Shared->Programs, first + i, 0);
-   }
-
-   /* Return the program names */
-   for (i = 0; i < (GLuint) n; i++) {
-      ids[i] = first + i;
-   }
-}
-
-
-/**
- * Determine if id names a program.
- * \note Not compiled into display lists.
- * \note Called from both glIsProgramNV and glIsProgramARB.
- * \param id is the program identifier
- * \return GL_TRUE if id is a program, else GL_FALSE.
- */
-GLboolean GLAPIENTRY
-_mesa_IsProgram(GLuint id)
-{
-   GET_CURRENT_CONTEXT(ctx);
-   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
-
-   if (id == 0)
-      return GL_FALSE;
-
-   if (_mesa_HashLookup(ctx->Shared->Programs, id))
-      return GL_TRUE;
-   else
-      return GL_FALSE;
-}
-
-
-
-/**********************************************************************/
-/* GL_MESA_program_debug extension                                    */
-/**********************************************************************/
-
-
-/* XXX temporary */
-void
-glProgramCallbackMESA(GLenum target, GLprogramcallbackMESA callback,
-                      GLvoid *data)
-{
-   _mesa_ProgramCallbackMESA(target, callback, data);
-}
-
-
-void
-_mesa_ProgramCallbackMESA(GLenum target, GLprogramcallbackMESA callback,
-                          GLvoid *data)
-{
-   GET_CURRENT_CONTEXT(ctx);
-
-   switch (target) {
-      case GL_FRAGMENT_PROGRAM_ARB:
-         if (!ctx->Extensions.ARB_fragment_program) {
-            _mesa_error(ctx, GL_INVALID_ENUM, "glProgramCallbackMESA(target)");
-            return;
-         }
-         ctx->FragmentProgram.Callback = callback;
-         ctx->FragmentProgram.CallbackData = data;
-         break;
-      case GL_FRAGMENT_PROGRAM_NV:
-         if (!ctx->Extensions.NV_fragment_program) {
-            _mesa_error(ctx, GL_INVALID_ENUM, "glProgramCallbackMESA(target)");
-            return;
-         }
-         ctx->FragmentProgram.Callback = callback;
-         ctx->FragmentProgram.CallbackData = data;
-         break;
-      case GL_VERTEX_PROGRAM_ARB: /* == GL_VERTEX_PROGRAM_NV */
-         if (!ctx->Extensions.ARB_vertex_program &&
-             !ctx->Extensions.NV_vertex_program) {
-            _mesa_error(ctx, GL_INVALID_ENUM, "glProgramCallbackMESA(target)");
-            return;
-         }
-         ctx->VertexProgram.Callback = callback;
-         ctx->VertexProgram.CallbackData = data;
-         break;
-      default:
-         _mesa_error(ctx, GL_INVALID_ENUM, "glProgramCallbackMESA(target)");
-         return;
-   }
-}
-
-
-/* XXX temporary */
-void
-glGetProgramRegisterfvMESA(GLenum target,
-                           GLsizei len, const GLubyte *registerName,
-                           GLfloat *v)
-{
-   _mesa_GetProgramRegisterfvMESA(target, len, registerName, v);
-}
-
-
-void
-_mesa_GetProgramRegisterfvMESA(GLenum target,
-                               GLsizei len, const GLubyte *registerName,
-                               GLfloat *v)
-{
-   char reg[1000];
-   GET_CURRENT_CONTEXT(ctx);
-
-   /* We _should_ be inside glBegin/glEnd */
-#if 0
-   if (ctx->Driver.CurrentExecPrimitive == PRIM_OUTSIDE_BEGIN_END) {
-      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetProgramRegisterfvMESA");
-      return;
-   }
-#endif
-
-   /* make null-terminated copy of registerName */
-   len = MIN2((unsigned int) len, sizeof(reg) - 1);
-   _mesa_memcpy(reg, registerName, len);
-   reg[len] = 0;
-
-   switch (target) {
-      case GL_VERTEX_PROGRAM_NV:
-         if (!ctx->Extensions.ARB_vertex_program &&
-             !ctx->Extensions.NV_vertex_program) {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glGetProgramRegisterfvMESA(target)");
-            return;
-         }
-         if (!ctx->VertexProgram.Enabled) {
-            _mesa_error(ctx, GL_INVALID_OPERATION,
-                        "glGetProgramRegisterfvMESA");
-            return;
-         }
-         /* GL_NV_vertex_program */
-         if (reg[0] == 'R') {
-            /* Temp register */
-            GLint i = _mesa_atoi(reg + 1);
-            if (i >= (GLint)ctx->Const.MaxVertexProgramTemps) {
-               _mesa_error(ctx, GL_INVALID_VALUE,
-                           "glGetProgramRegisterfvMESA(registerName)");
-               return;
-            }
-            COPY_4V(v, ctx->VertexProgram.Temporaries[i]);
-         }
-         else if (reg[0] == 'v' && reg[1] == '[') {
-            /* Vertex Input attribute */
-            GLuint i;
-            for (i = 0; i < ctx->Const.MaxVertexProgramAttribs; i++) {
-               const char *name = _mesa_nv_vertex_input_register_name(i);
-               char number[10];
-               sprintf(number, "%d", i);
-               if (_mesa_strncmp(reg + 2, name, 4) == 0 ||
-                   _mesa_strncmp(reg + 2, number, _mesa_strlen(number)) == 0) {
-                  COPY_4V(v, ctx->VertexProgram.Inputs[i]);
-                  return;
-               }
-            }
-            _mesa_error(ctx, GL_INVALID_VALUE,
-                        "glGetProgramRegisterfvMESA(registerName)");
-            return;
-         }
-         else if (reg[0] == 'o' && reg[1] == '[') {
-            /* Vertex output attribute */
-         }
-         /* GL_ARB_vertex_program */
-         else if (_mesa_strncmp(reg, "vertex.", 7) == 0) {
-
-         }
-         else {
-            _mesa_error(ctx, GL_INVALID_VALUE,
-                        "glGetProgramRegisterfvMESA(registerName)");
-            return;
-         }
-         break;
-      case GL_FRAGMENT_PROGRAM_ARB:
-         if (!ctx->Extensions.ARB_fragment_program) {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glGetProgramRegisterfvMESA(target)");
-            return;
-         }
-         if (!ctx->FragmentProgram.Enabled) {
-            _mesa_error(ctx, GL_INVALID_OPERATION,
-                        "glGetProgramRegisterfvMESA");
-            return;
-         }
-         /* XXX to do */
-         break;
-      case GL_FRAGMENT_PROGRAM_NV:
-         if (!ctx->Extensions.NV_fragment_program) {
-            _mesa_error(ctx, GL_INVALID_ENUM,
-                        "glGetProgramRegisterfvMESA(target)");
-            return;
-         }
-         if (!ctx->FragmentProgram.Enabled) {
-            _mesa_error(ctx, GL_INVALID_OPERATION,
-                        "glGetProgramRegisterfvMESA");
-            return;
-         }
-         if (reg[0] == 'R') {
-            /* Temp register */
-            GLint i = _mesa_atoi(reg + 1);
-            if (i >= (GLint)ctx->Const.MaxFragmentProgramTemps) {
-               _mesa_error(ctx, GL_INVALID_VALUE,
-                           "glGetProgramRegisterfvMESA(registerName)");
-               return;
-            }
-            COPY_4V(v, ctx->FragmentProgram.Machine.Temporaries[i]);
-         }
-         else if (reg[0] == 'f' && reg[1] == '[') {
-            /* Fragment input attribute */
-            GLuint i;
-            for (i = 0; i < ctx->Const.MaxFragmentProgramAttribs; i++) {
-               const char *name = _mesa_nv_fragment_input_register_name(i);
-               if (_mesa_strncmp(reg + 2, name, 4) == 0) {
-                  COPY_4V(v, ctx->FragmentProgram.Machine.Inputs[i]);
-                  return;
-               }
-            }
-            _mesa_error(ctx, GL_INVALID_VALUE,
-                        "glGetProgramRegisterfvMESA(registerName)");
-            return;
-         }
-         else if (_mesa_strcmp(reg, "o[COLR]") == 0) {
-            /* Fragment output color */
-            COPY_4V(v, ctx->FragmentProgram.Machine.Outputs[FRAG_OUTPUT_COLR]);
-         }
-         else if (_mesa_strcmp(reg, "o[COLH]") == 0) {
-            /* Fragment output color */
-            COPY_4V(v, ctx->FragmentProgram.Machine.Outputs[FRAG_OUTPUT_COLH]);
-         }
-         else if (_mesa_strcmp(reg, "o[DEPR]") == 0) {
-            /* Fragment output depth */
-            COPY_4V(v, ctx->FragmentProgram.Machine.Outputs[FRAG_OUTPUT_DEPR]);
-         }
-         else {
-            /* try user-defined identifiers */
-            const GLfloat *value = _mesa_lookup_parameter_value(
-                       ctx->FragmentProgram.Current->Parameters, -1, reg);
-            if (value) {
-               COPY_4V(v, value);
-            }
-            else {
-               _mesa_error(ctx, GL_INVALID_VALUE,
-                           "glGetProgramRegisterfvMESA(registerName)");
-               return;
-            }
-         }
-         break;
-      default:
-         _mesa_error(ctx, GL_INVALID_ENUM,
-                     "glGetProgramRegisterfvMESA(target)");
-         return;
-   }
-
-}