Split the program.[ch] files into several new files.
diff --git a/src/mesa/shader/prog_statevars.c b/src/mesa/shader/prog_statevars.c
new file mode 100644
index 0000000..7377c7d
--- /dev/null
+++ b/src/mesa/shader/prog_statevars.c
@@ -0,0 +1,783 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5.3
+ *
+ * Copyright (C) 1999-2006 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 prog_statevars.c
+ * Program state variable management.
+ * \author Brian Paul
+ */
+
+
+#include "glheader.h"
+#include "context.h"
+#include "hash.h"
+#include "imports.h"
+#include "macros.h"
+#include "mtypes.h"
+#include "prog_statevars.h"
+#include "prog_parameter.h"
+#include "nvvertparse.h"
+
+
+/**
+ * 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 gl_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];
+ const struct gl_material *mat = &ctx->Light.Material;
+ ASSERT(face == 0 || face == 1);
+ /* we rely on tokens numbered so that _BACK_ == _FRONT_+ 1 */
+ ASSERT(MAT_ATTRIB_FRONT_AMBIENT + 1 == MAT_ATTRIB_BACK_AMBIENT);
+ /* XXX we could get rid of this switch entirely with a little
+ * work in arbprogparse.c's parse_state_single_item().
+ */
+ /* state[2] is the material attribute */
+ switch (state[2]) {
+ case STATE_AMBIENT:
+ COPY_4V(value, mat->Attrib[MAT_ATTRIB_FRONT_AMBIENT + face]);
+ return;
+ case STATE_DIFFUSE:
+ COPY_4V(value, mat->Attrib[MAT_ATTRIB_FRONT_DIFFUSE + face]);
+ return;
+ case STATE_SPECULAR:
+ COPY_4V(value, mat->Attrib[MAT_ATTRIB_FRONT_SPECULAR + face]);
+ return;
+ case STATE_EMISSION:
+ COPY_4V(value, mat->Attrib[MAT_ATTRIB_FRONT_EMISSION + face]);
+ return;
+ case STATE_SHININESS:
+ value[0] = mat->Attrib[MAT_ATTRIB_FRONT_SHININESS + face][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;
+ }
+ }
+ 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_3V(value, ctx->Light.Light[ln].EyeDirection);
+ value[3] = ctx->Light.Light[ln]._CosCutoff;
+ 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;
+ case STATE_POSITION_NORMALIZED:
+ COPY_4V(value, ctx->Light.Light[ln].EyePosition);
+ NORMALIZE_3FV( value );
+ return;
+ default:
+ _mesa_problem(ctx, "Invalid light state in fetch_state");
+ 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 < 3; 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];
+ }
+ value[3] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE][3];
+ }
+ else {
+ /* back */
+ GLint i;
+ for (i = 0; i < 3; 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];
+ }
+ value[3] = ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_DIFFUSE][3];
+ }
+ 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;
+ }
+ }
+ 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;
+ }
+ }
+ 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 row to fetch */
+ /* state[4] = last row to fetch */
+ /* state[5] = transpose, inverse or invtrans */
+
+ const GLmatrix *matrix;
+ const gl_state_index mat = state[1];
+ const GLuint index = (GLuint) state[2];
+ const GLuint firstRow = (GLuint) state[3];
+ const GLuint lastRow = (GLuint) state[4];
+ const gl_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) {
+ /* Be sure inverse is up to date:
+ */
+ _math_matrix_alloc_inv( (GLmatrix *) matrix );
+ _math_matrix_analyse( (GLmatrix*) matrix );
+ m = matrix->inv;
+ }
+ else {
+ m = matrix->m;
+ }
+ if (modifier == STATE_MATRIX_TRANSPOSE ||
+ modifier == STATE_MATRIX_INVTRANS) {
+ for (i = 0, row = firstRow; row <= lastRow; 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 = firstRow; row <= lastRow; 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 */
+ const int idx = (int) 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 */
+ const int idx = (int) 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;
+
+ case STATE_INTERNAL:
+ {
+ switch (state[1]) {
+ case STATE_NORMAL_SCALE:
+ ASSIGN_4V(value, ctx->_ModelViewInvScale, 0, 0, 1);
+ break;
+ case STATE_TEXRECT_SCALE: {
+ const int unit = (int) state[2];
+ const struct gl_texture_object *texObj = ctx->Texture.Unit[unit]._Current;
+ if (texObj) {
+ struct gl_texture_image *texImage = texObj->Image[0][0];
+ ASSIGN_4V(value, 1.0 / texImage->Width, 1.0 / texImage->Height, 0, 1);
+ }
+ break;
+ }
+ default:
+ /* unknown state indexes are silently ignored
+ * should be handled by the driver.
+ */
+ return;
+ }
+ }
+ return;
+
+ default:
+ _mesa_problem(ctx, "Invalid state in _mesa_fetch_state");
+ return;
+ }
+}
+
+
+/**
+ * Return a bitmask of the Mesa state flags (_NEW_* values) which would
+ * indicate that the given context state may have changed.
+ * The bitmask is used during validation to determine if we need to update
+ * vertex/fragment program parameters (like "state.material.color") when
+ * some GL state has changed.
+ */
+GLbitfield
+_mesa_program_state_flags(const GLint state[])
+{
+ switch (state[0]) {
+ case STATE_MATERIAL:
+ case STATE_LIGHT:
+ case STATE_LIGHTMODEL_AMBIENT:
+ case STATE_LIGHTMODEL_SCENECOLOR:
+ case STATE_LIGHTPROD:
+ return _NEW_LIGHT;
+
+ case STATE_TEXGEN:
+ case STATE_TEXENV_COLOR:
+ return _NEW_TEXTURE;
+
+ case STATE_FOG_COLOR:
+ case STATE_FOG_PARAMS:
+ return _NEW_FOG;
+
+ case STATE_CLIPPLANE:
+ return _NEW_TRANSFORM;
+
+ case STATE_POINT_SIZE:
+ case STATE_POINT_ATTENUATION:
+ return _NEW_POINT;
+
+ case STATE_MATRIX:
+ switch (state[1]) {
+ case STATE_MODELVIEW:
+ return _NEW_MODELVIEW;
+ case STATE_PROJECTION:
+ return _NEW_PROJECTION;
+ case STATE_MVP:
+ return _NEW_MODELVIEW | _NEW_PROJECTION;
+ case STATE_TEXTURE:
+ return _NEW_TEXTURE_MATRIX;
+ case STATE_PROGRAM:
+ return _NEW_TRACK_MATRIX;
+ default:
+ _mesa_problem(NULL,
+ "unexpected matrix in _mesa_program_state_flags()");
+ return 0;
+ }
+
+ case STATE_DEPTH_RANGE:
+ return _NEW_VIEWPORT;
+
+ case STATE_FRAGMENT_PROGRAM:
+ case STATE_VERTEX_PROGRAM:
+ return _NEW_PROGRAM;
+
+ case STATE_INTERNAL:
+ switch (state[1]) {
+ case STATE_NORMAL_SCALE:
+ return _NEW_MODELVIEW;
+ case STATE_TEXRECT_SCALE:
+ return _NEW_TEXTURE;
+ default:
+ /* unknown state indexes are silently ignored and
+ * no flag set, since it is handled by the driver.
+ */
+ return 0;
+ }
+
+ default:
+ _mesa_problem(NULL, "unexpected state[0] in make_state_flags()");
+ return 0;
+ }
+}
+
+
+static void
+append(char *dst, const char *src)
+{
+ while (*dst)
+ dst++;
+ while (*src)
+ *dst++ = *src++;
+ *dst = 0;
+}
+
+
+static void
+append_token(char *dst, gl_state_index k)
+{
+ switch (k) {
+ case STATE_MATERIAL:
+ append(dst, "material.");
+ break;
+ case STATE_LIGHT:
+ append(dst, "light");
+ break;
+ case STATE_LIGHTMODEL_AMBIENT:
+ append(dst, "lightmodel.ambient");
+ break;
+ case STATE_LIGHTMODEL_SCENECOLOR:
+ break;
+ case STATE_LIGHTPROD:
+ append(dst, "lightprod");
+ break;
+ case STATE_TEXGEN:
+ append(dst, "texgen");
+ break;
+ case STATE_FOG_COLOR:
+ append(dst, "fog.color");
+ break;
+ case STATE_FOG_PARAMS:
+ append(dst, "fog.params");
+ break;
+ case STATE_CLIPPLANE:
+ append(dst, "clip");
+ break;
+ case STATE_POINT_SIZE:
+ append(dst, "point.size");
+ break;
+ case STATE_POINT_ATTENUATION:
+ append(dst, "point.attenuation");
+ break;
+ case STATE_MATRIX:
+ append(dst, "matrix.");
+ break;
+ case STATE_MODELVIEW:
+ append(dst, "modelview");
+ break;
+ case STATE_PROJECTION:
+ append(dst, "projection");
+ break;
+ case STATE_MVP:
+ append(dst, "mvp");
+ break;
+ case STATE_TEXTURE:
+ append(dst, "texture");
+ break;
+ case STATE_PROGRAM:
+ append(dst, "program");
+ break;
+ case STATE_MATRIX_INVERSE:
+ append(dst, ".inverse");
+ break;
+ case STATE_MATRIX_TRANSPOSE:
+ append(dst, ".transpose");
+ break;
+ case STATE_MATRIX_INVTRANS:
+ append(dst, ".invtrans");
+ break;
+ case STATE_AMBIENT:
+ append(dst, "ambient");
+ break;
+ case STATE_DIFFUSE:
+ append(dst, "diffuse");
+ break;
+ case STATE_SPECULAR:
+ append(dst, "specular");
+ break;
+ case STATE_EMISSION:
+ append(dst, "emission");
+ break;
+ case STATE_SHININESS:
+ append(dst, "shininess");
+ break;
+ case STATE_HALF:
+ append(dst, "half");
+ break;
+ case STATE_POSITION:
+ append(dst, ".position");
+ break;
+ case STATE_ATTENUATION:
+ append(dst, ".attenuation");
+ break;
+ case STATE_SPOT_DIRECTION:
+ append(dst, ".spot.direction");
+ break;
+ case STATE_TEXGEN_EYE_S:
+ append(dst, "eye.s");
+ break;
+ case STATE_TEXGEN_EYE_T:
+ append(dst, "eye.t");
+ break;
+ case STATE_TEXGEN_EYE_R:
+ append(dst, "eye.r");
+ break;
+ case STATE_TEXGEN_EYE_Q:
+ append(dst, "eye.q");
+ break;
+ case STATE_TEXGEN_OBJECT_S:
+ append(dst, "object.s");
+ break;
+ case STATE_TEXGEN_OBJECT_T:
+ append(dst, "object.t");
+ break;
+ case STATE_TEXGEN_OBJECT_R:
+ append(dst, "object.r");
+ break;
+ case STATE_TEXGEN_OBJECT_Q:
+ append(dst, "object.q");
+ break;
+ case STATE_TEXENV_COLOR:
+ append(dst, "texenv");
+ break;
+ case STATE_DEPTH_RANGE:
+ append(dst, "depth.range");
+ break;
+ case STATE_VERTEX_PROGRAM:
+ case STATE_FRAGMENT_PROGRAM:
+ break;
+ case STATE_ENV:
+ append(dst, "env");
+ break;
+ case STATE_LOCAL:
+ append(dst, "local");
+ break;
+ case STATE_INTERNAL:
+ case STATE_NORMAL_SCALE:
+ case STATE_POSITION_NORMALIZED:
+ append(dst, "(internal)");
+ break;
+ default:
+ ;
+ }
+}
+
+static void
+append_face(char *dst, GLint face)
+{
+ if (face == 0)
+ append(dst, "front.");
+ else
+ append(dst, "back.");
+}
+
+static void
+append_index(char *dst, GLint index)
+{
+ char s[20];
+ _mesa_sprintf(s, "[%d].", index);
+ append(dst, s);
+}
+
+/**
+ * Make a string from the given state vector.
+ * For example, return "state.matrix.texture[2].inverse".
+ * Use _mesa_free() to deallocate the string.
+ */
+const char *
+_mesa_program_state_string(const GLint state[6])
+{
+ char str[1000] = "";
+ char tmp[30];
+
+ append(str, "state.");
+ append_token(str, (gl_state_index) state[0]);
+
+ switch (state[0]) {
+ case STATE_MATERIAL:
+ append_face(str, state[1]);
+ append_token(str, (gl_state_index) state[2]);
+ break;
+ case STATE_LIGHT:
+ append(str, "light");
+ append_index(str, state[1]); /* light number [i]. */
+ append_token(str, (gl_state_index) state[2]); /* coefficients */
+ break;
+ case STATE_LIGHTMODEL_AMBIENT:
+ append(str, "lightmodel.ambient");
+ break;
+ case STATE_LIGHTMODEL_SCENECOLOR:
+ if (state[1] == 0) {
+ append(str, "lightmodel.front.scenecolor");
+ }
+ else {
+ append(str, "lightmodel.back.scenecolor");
+ }
+ break;
+ case STATE_LIGHTPROD:
+ append_index(str, state[1]); /* light number [i]. */
+ append_face(str, state[2]);
+ append_token(str, (gl_state_index) state[3]);
+ break;
+ case STATE_TEXGEN:
+ append_index(str, state[1]); /* tex unit [i] */
+ append_token(str, (gl_state_index) state[2]); /* plane coef */
+ break;
+ case STATE_TEXENV_COLOR:
+ append_index(str, state[1]); /* tex unit [i] */
+ append(str, "color");
+ break;
+ case STATE_FOG_COLOR:
+ case STATE_FOG_PARAMS:
+ break;
+ case STATE_CLIPPLANE:
+ append_index(str, state[1]); /* plane [i] */
+ append(str, "plane");
+ break;
+ case STATE_POINT_SIZE:
+ case STATE_POINT_ATTENUATION:
+ break;
+ case STATE_MATRIX:
+ {
+ /* state[1] = modelview, projection, texture, etc. */
+ /* state[2] = which texture matrix or program matrix */
+ /* state[3] = first row to fetch */
+ /* state[4] = last row to fetch */
+ /* state[5] = transpose, inverse or invtrans */
+ const gl_state_index mat = (gl_state_index) state[1];
+ const GLuint index = (GLuint) state[2];
+ const GLuint firstRow = (GLuint) state[3];
+ const GLuint lastRow = (GLuint) state[4];
+ const gl_state_index modifier = (gl_state_index) state[5];
+ append_token(str, mat);
+ if (index)
+ append_index(str, index);
+ if (modifier)
+ append_token(str, modifier);
+ if (firstRow == lastRow)
+ _mesa_sprintf(tmp, ".row[%d]", firstRow);
+ else
+ _mesa_sprintf(tmp, ".row[%d..%d]", firstRow, lastRow);
+ append(str, tmp);
+ }
+ break;
+ case STATE_DEPTH_RANGE:
+ break;
+ case STATE_FRAGMENT_PROGRAM:
+ case STATE_VERTEX_PROGRAM:
+ /* state[1] = {STATE_ENV, STATE_LOCAL} */
+ /* state[2] = parameter index */
+ append_token(str, (gl_state_index) state[1]);
+ append_index(str, state[2]);
+ break;
+ case STATE_INTERNAL:
+ break;
+ default:
+ _mesa_problem(NULL, "Invalid state in _mesa_program_state_string");
+ break;
+ }
+
+ return _mesa_strdup(str);
+}
+
+
+/**
+ * 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 gl_program_parameter_list *paramList)
+{
+ GLuint i;
+
+ if (!paramList)
+ return;
+
+ for (i = 0; i < paramList->NumParameters; i++) {
+ if (paramList->Parameters[i].Type == PROGRAM_STATE_VAR) {
+ _mesa_fetch_state(ctx,
+ paramList->Parameters[i].StateIndexes,
+ paramList->ParameterValues[i]);
+ }
+ }
+}
+