diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/shader/program.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/shader/program.c | 1405 |
1 files changed, 0 insertions, 1405 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/shader/program.c b/nx-X11/extras/Mesa/src/mesa/shader/program.c deleted file mode 100644 index 0ccc741dd..000000000 --- a/nx-X11/extras/Mesa/src/mesa/shader/program.c +++ /dev/null @@ -1,1405 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.2 - * - * 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" -#include "nvvertprog.h" - - -/**********************************************************************/ -/* Utility functions */ -/**********************************************************************/ - - -/* A pointer to this dummy program is put into the hash table when - * glGenPrograms is called. - */ -struct program _mesa_DummyProgram; - - -/** - * Init context's vertex/fragment 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 = (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 - -#if FEATURE_ATI_fragment_shader - ctx->ATIFragmentShader.Enabled = GL_FALSE; - ctx->ATIFragmentShader.Current = (struct ati_fragment_shader *) ctx->Shared->DefaultFragmentShader; - assert(ctx->ATIFragmentShader.Current); - ctx->ATIFragmentShader.Current->Base.RefCount++; -#endif -} - - -/** - * Free a context's vertex/fragment program state - */ -void -_mesa_free_program_data(GLcontext *ctx) -{ -#if FEATURE_NV_vertex_program - if (ctx->VertexProgram.Current) { - ctx->VertexProgram.Current->Base.RefCount--; - if (ctx->VertexProgram.Current->Base.RefCount <= 0) - ctx->Driver.DeleteProgram(ctx, &(ctx->VertexProgram.Current->Base)); - } -#endif -#if FEATURE_NV_fragment_program - if (ctx->FragmentProgram.Current) { - ctx->FragmentProgram.Current->Base.RefCount--; - if (ctx->FragmentProgram.Current->Base.RefCount <= 0) - ctx->Driver.DeleteProgram(ctx, &(ctx->FragmentProgram.Current->Base)); - } -#endif -#if FEATURE_ATI_fragment_shader - if (ctx->ATIFragmentShader.Current) { - ctx->ATIFragmentShader.Current->Base.RefCount--; - if (ctx->ATIFragmentShader.Current->Base.RefCount <= 0) - ctx->Driver.DeleteProgram(ctx, &(ctx->ATIFragmentShader.Current->Base)); - } -#endif - _mesa_free((void *) ctx->Program.ErrorString); -} - - - - -/** - * 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; -} - - -/** - * Initialize a new vertex/fragment program object. - */ -static struct program * -_mesa_init_program_struct( GLcontext *ctx, struct program *prog, - GLenum target, GLuint id) -{ - (void) ctx; - if (prog) { - prog->Id = id; - prog->Target = target; - prog->Resident = GL_TRUE; - prog->RefCount = 1; - } - - return prog; -} - - -/** - * Initialize a new fragment program object. - */ -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; -} - - -/** - * Initialize a new vertex program object. - */ -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; -} - -/** - * Initialize a new ATI fragment shader object. - */ -struct program * -_mesa_init_ati_fragment_shader( GLcontext *ctx, - struct ati_fragment_shader *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 ); - case GL_FRAGMENT_SHADER_ATI: - return _mesa_init_ati_fragment_shader( ctx, CALLOC_STRUCT(ati_fragment_shader), - 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) -{ - (void) ctx; - 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) { - GLuint i; - for (i = 0; i < vprog->Base.NumInstructions; i++) { - if (vprog->Instructions[i].Data) - _mesa_free(vprog->Instructions[i].Data); - } - _mesa_free(vprog->Instructions); - } - if (vprog->Parameters) - _mesa_free_parameter_list(vprog->Parameters); - } - 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) { - GLuint i; - for (i = 0; i < fprog->Base.NumInstructions; i++) { - if (fprog->Instructions[i].Data) - _mesa_free(fprog->Instructions[i].Data); - } - _mesa_free(fprog->Instructions); - } - if (fprog->Parameters) - _mesa_free_parameter_list(fprog->Parameters); - } - else if (prog->Target == GL_FRAGMENT_SHADER_ATI) { - struct ati_fragment_shader *atifs = (struct ati_fragment_shader *)prog; - if (atifs->Instructions) - _mesa_free(atifs->Instructions); - } - - _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->Parameters); - if (paramList->ParameterValues) - ALIGN_FREE(paramList->ParameterValues); - _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++) { - if (paramList->Parameters[i].Name) - _mesa_free((void *) paramList->Parameters[i].Name); - } - paramList->NumParameters = 0; -} - - -/** - * 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; - - if (n == paramList->Size) { - GLfloat (*tmp)[4]; - - paramList->Size *= 2; - if (!paramList->Size) - paramList->Size = 8; - - paramList->Parameters = (struct program_parameter *) - _mesa_realloc(paramList->Parameters, - n * sizeof(struct program_parameter), - paramList->Size * sizeof(struct program_parameter)); - - tmp = paramList->ParameterValues; - paramList->ParameterValues = ALIGN_MALLOC(paramList->Size * 4 * sizeof(GLfloat), 16); - if (tmp) { - _mesa_memcpy(paramList->ParameterValues, tmp, - n * 4 * sizeof(GLfloat)); - ALIGN_FREE(tmp); - } - } - - if (!paramList->Parameters || - !paramList->ParameterValues) { - /* out of memory */ - paramList->NumParameters = 0; - paramList->Size = 0; - return -1; - } - else { - paramList->NumParameters = n + 1; - - _mesa_memset(¶mList->Parameters[n], 0, - sizeof(struct program_parameter)); - - paramList->Parameters[n].Name = name ? _mesa_strdup(name) : NULL; - paramList->Parameters[n].Type = type; - if (values) - COPY_4V(paramList->ParameterValues[n], 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]) -{ - return add_parameter(paramList, NULL, 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, NULL, 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 (paramList->Parameters[i].Name && - _mesa_strcmp(paramList->Parameters[i].Name, name) == 0) - return paramList->ParameterValues[i]; - } - } - else { - /* name is not null-terminated, use nameLen */ - for (i = 0; i < paramList->NumParameters; i++) { - if (paramList->Parameters[i].Name && - _mesa_strncmp(paramList->Parameters[i].Name, name, nameLen) == 0 - && _mesa_strlen(paramList->Parameters[i].Name) == (size_t)nameLen) - return paramList->ParameterValues[i]; - } - } - 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 (paramList->Parameters[i].Name && - _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 (paramList->Parameters[i].Name && - _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; - } - } - 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 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) { - /* Be sure inverse is up to date: - */ - _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 = 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 */ - 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; - default: - _mesa_problem(ctx, "Bad state switch in _mesa_fetch_state()"); - return; - } - } - return; - - default: - _mesa_problem(ctx, "Invalid state in _mesa_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->ParameterValues[i]); - } - } -} - - - -/**********************************************************************/ -/* 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)) { - /*** Vertex program binding ***/ - struct vertex_program *curProg = ctx->VertexProgram.Current; - if (curProg->Base.Id == id) { - /* binding same program - no change */ - return; - } - if (curProg->Base.Id != 0) { - /* decrement refcount on previously bound vertex program */ - curProg->Base.RefCount--; - /* and delete if refcount goes below one */ - if (curProg->Base.RefCount <= 0) { - /* the program ID was already removed from the hash table */ - ctx->Driver.DeleteProgram(ctx, &(curProg->Base)); - } - } - } - else if ((target == GL_FRAGMENT_PROGRAM_NV - && ctx->Extensions.NV_fragment_program) || - (target == GL_FRAGMENT_PROGRAM_ARB - && ctx->Extensions.ARB_fragment_program)) { - /*** Fragment program binding ***/ - struct fragment_program *curProg = ctx->FragmentProgram.Current; - if (curProg->Base.Id == id) { - /* binding same program - no change */ - return; - } - if (curProg->Base.Id != 0) { - /* decrement refcount on previously bound fragment program */ - curProg->Base.RefCount--; - /* and delete if refcount goes below one */ - if (curProg->Base.RefCount <= 0) { - /* the program ID was already removed from the hash table */ - ctx->Driver.DeleteProgram(ctx, &(curProg->Base)); - } - } - } - 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) { - /* Bind 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 { - /* Bind user program */ - prog = (struct program *) _mesa_HashLookup(ctx->Shared->Programs, id); - if (!prog || prog == &_mesa_DummyProgram) { - /* allocate a new program now */ - prog = ctx->Driver.NewProgram(ctx, target, id); - if (!prog) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindProgramNV/ARB"); - return; - } - _mesa_HashInsert(ctx->Shared->Programs, id, prog); - } - else if (prog->Target != target) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBindProgramNV/ARB(target mismatch)"); - return; - } - } - - /* 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; - } - - /* Never null pointers */ - ASSERT(ctx->VertexProgram.Current); - ASSERT(ctx->FragmentProgram.Current); - - 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 == &_mesa_DummyProgram) { - _mesa_HashRemove(ctx->Shared->Programs, ids[i]); - } - else if (prog) { - /* Unbind program if necessary */ - 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; - } - /* The ID is immediately available for re-use now */ - _mesa_HashRemove(ctx->Shared->Programs, ids[i]); - prog->RefCount--; - if (prog->RefCount <= 0) { - ctx->Driver.DeleteProgram(ctx, prog); - } - } - } - } -} - - -/** - * 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); - - /* Insert pointer to dummy program as placeholder */ - for (i = 0; i < (GLuint) n; i++) { - _mesa_HashInsert(ctx->Shared->Programs, first + i, &_mesa_DummyProgram); - } - - /* Return the program names */ - for (i = 0; i < (GLuint) n; i++) { - ids[i] = first + i; - } -} - - -/** - * Determine if id names a vertex or fragment 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 */ -GLAPI void GLAPIENTRY -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 */ -GLAPI void GLAPIENTRY -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; - } - -} |