| /* |
| * Mesa 3-D graphics library |
| * Version: 6.5 |
| * |
| * Copyright (C) 1999-2005 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 "program_instruction.h" |
| #include "nvvertparse.h" |
| #include "atifragshader.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->Instructions) { |
| GLuint i; |
| for (i = 0; i < prog->NumInstructions; i++) { |
| if (prog->Instructions[i].Data) |
| _mesa_free(prog->Instructions[i].Data); |
| } |
| _mesa_free(prog->Instructions); |
| } |
| |
| if (prog->Parameters) |
| _mesa_free_parameter_list(prog->Parameters); |
| |
| if (prog->Target == GL_FRAGMENT_SHADER_ATI) { |
| struct ati_fragment_shader *atifs = (struct ati_fragment_shader *)prog; |
| GLuint i; |
| for (i = 0; i < MAX_NUM_PASSES_ATI; i++) { |
| if (atifs->Instructions[i]) |
| _mesa_free(atifs->Instructions[i]); |
| if (atifs->SetupInst[i]) |
| _mesa_free(atifs->SetupInst[i]); |
| } |
| } |
| |
| _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. |
| * \return index of new parameter in the list, or -1 if error (out of mem) |
| */ |
| static GLint |
| add_parameter(struct program_parameter_list *paramList, |
| const char *name, const GLfloat values[4], |
| enum register_file 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, PROGRAM_NAMED_PARAM); |
| } |
| |
| |
| /** |
| * 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, PROGRAM_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, PROGRAM_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, |
| const GLint *stateTokens) |
| { |
| /* XXX we should probably search the current parameter list to see if |
| * the new state reference is already present. |
| */ |
| GLint index; |
| |
| index = add_parameter(paramList, NULL, NULL, PROGRAM_STATE_VAR); |
| if (index >= 0) { |
| GLuint i; |
| for (i = 0; i < 6; i++) |
| paramList->Parameters[index].StateIndexes[i] |
| = (enum state_index) stateTokens[i]; |
| } |
| |
| return index; |
| } |
| |
| |
| /** |
| * 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 == PROGRAM_STATE_VAR) { |
| _mesa_fetch_state(ctx, |
| paramList->Parameters[i].StateIndexes, |
| paramList->ParameterValues[i]); |
| } |
| } |
| } |
| |
| |
| /** |
| * Basic info about each instruction |
| */ |
| struct instruction_info |
| { |
| enum prog_opcode Opcode; |
| const char *Name; |
| GLuint NumSrcRegs; |
| }; |
| |
| /** |
| * Instruction info |
| * \note Opcode should equal array index! |
| */ |
| static const struct instruction_info InstInfo[MAX_OPCODE] = { |
| { OPCODE_ABS, "ABS", 1 }, |
| { OPCODE_ADD, "ADD", 2 }, |
| { OPCODE_ARA, "ARA", 1 }, |
| { OPCODE_ARL, "ARL", 1 }, |
| { OPCODE_ARL_NV, "ARL", 1 }, |
| { OPCODE_ARR, "ARL", 1 }, |
| { OPCODE_BRA, "BRA", 1 }, |
| { OPCODE_CAL, "CAL", 1 }, |
| { OPCODE_CMP, "CMP", 3 }, |
| { OPCODE_COS, "COS", 1 }, |
| { OPCODE_DDX, "DDX", 1 }, |
| { OPCODE_DDY, "DDY", 1 }, |
| { OPCODE_DP3, "DP3", 2 }, |
| { OPCODE_DP4, "DP4", 2 }, |
| { OPCODE_DPH, "DPH", 2 }, |
| { OPCODE_DST, "DST", 2 }, |
| { OPCODE_END, "END", 0 }, |
| { OPCODE_EX2, "EX2", 1 }, |
| { OPCODE_EXP, "EXP", 1 }, |
| { OPCODE_FLR, "FLR", 1 }, |
| { OPCODE_FRC, "FRC", 1 }, |
| { OPCODE_KIL, "KIL", 1 }, |
| { OPCODE_KIL_NV, "KIL", 0 }, |
| { OPCODE_LG2, "LG2", 1 }, |
| { OPCODE_LIT, "LIT", 1 }, |
| { OPCODE_LOG, "LOG", 1 }, |
| { OPCODE_LRP, "LRP", 3 }, |
| { OPCODE_MAD, "MAD", 3 }, |
| { OPCODE_MAX, "MAX", 2 }, |
| { OPCODE_MIN, "MIN", 2 }, |
| { OPCODE_MOV, "MOV", 1 }, |
| { OPCODE_MUL, "MUL", 2 }, |
| { OPCODE_PK2H, "PK2H", 1 }, |
| { OPCODE_PK2US, "PK2US", 1 }, |
| { OPCODE_PK4B, "PK4B", 1 }, |
| { OPCODE_PK4UB, "PK4UB", 1 }, |
| { OPCODE_POW, "POW", 2 }, |
| { OPCODE_POPA, "POPA", 0 }, |
| { OPCODE_PRINT, "PRINT", 1 }, |
| { OPCODE_PUSHA, "PUSHA", 0 }, |
| { OPCODE_RCC, "RCC", 1 }, |
| { OPCODE_RCP, "RCP", 1 }, |
| { OPCODE_RET, "RET", 1 }, |
| { OPCODE_RFL, "RFL", 1 }, |
| { OPCODE_RSQ, "RSQ", 1 }, |
| { OPCODE_SCS, "SCS", 1 }, |
| { OPCODE_SEQ, "SEQ", 2 }, |
| { OPCODE_SFL, "SFL", 0 }, |
| { OPCODE_SGE, "SGE", 2 }, |
| { OPCODE_SGT, "SGT", 2 }, |
| { OPCODE_SIN, "SIN", 1 }, |
| { OPCODE_SLE, "SLE", 2 }, |
| { OPCODE_SLT, "SLT", 2 }, |
| { OPCODE_SNE, "SNE", 2 }, |
| { OPCODE_SSG, "SSG", 1 }, |
| { OPCODE_STR, "STR", 0 }, |
| { OPCODE_SUB, "SUB", 2 }, |
| { OPCODE_SWZ, "SWZ", 1 }, |
| { OPCODE_TEX, "TEX", 1 }, |
| { OPCODE_TXB, "TXB", 1 }, |
| { OPCODE_TXD, "TXD", 3 }, |
| { OPCODE_TXL, "TXL", 1 }, |
| { OPCODE_TXP, "TXP", 1 }, |
| { OPCODE_TXP_NV, "TXP", 1 }, |
| { OPCODE_UP2H, "UP2H", 1 }, |
| { OPCODE_UP2US, "UP2US", 1 }, |
| { OPCODE_UP4B, "UP4B", 1 }, |
| { OPCODE_UP4UB, "UP4UB", 1 }, |
| { OPCODE_X2D, "X2D", 3 }, |
| { OPCODE_XPD, "XPD", 2 } |
| }; |
| |
| |
| /** |
| * Return the number of src registers for the given instruction/opcode. |
| */ |
| GLuint |
| _mesa_num_inst_src_regs(enum prog_opcode opcode) |
| { |
| GLuint i; |
| #ifdef DEBUG |
| for (i = 0; i < MAX_OPCODE; i++) { |
| ASSERT(i == InstInfo[i].Opcode); |
| } |
| #endif |
| for (i = 0; i < MAX_OPCODE; i++) { |
| if (InstInfo[i].Opcode == opcode) { |
| return InstInfo[i].NumSrcRegs; |
| } |
| } |
| _mesa_problem(NULL, "invalid opcode in _mesa_num_inst_src_regs"); |
| return 0; |
| } |
| |
| |
| /** |
| * Return string name for given program opcode. |
| */ |
| const char * |
| _mesa_opcode_string(enum prog_opcode opcode) |
| { |
| ASSERT(opcode < MAX_OPCODE); |
| return InstInfo[opcode].Name; |
| } |
| |
| /** |
| * Return string name for given program/register file. |
| */ |
| static const char * |
| program_file_string(enum register_file f) |
| { |
| switch (f) { |
| case PROGRAM_TEMPORARY: |
| return "TEMP"; |
| case PROGRAM_LOCAL_PARAM: |
| return "LOCAL"; |
| case PROGRAM_ENV_PARAM: |
| return "ENV"; |
| case PROGRAM_STATE_VAR: |
| return "STATE"; |
| case PROGRAM_INPUT: |
| return "INPUT"; |
| case PROGRAM_OUTPUT: |
| return "OUTPUT"; |
| case PROGRAM_NAMED_PARAM: |
| return "NAMED"; |
| case PROGRAM_CONSTANT: |
| return "CONST"; |
| case PROGRAM_WRITE_ONLY: |
| return "WRITE_ONLY"; |
| case PROGRAM_ADDRESS: |
| return "ADDR"; |
| default: |
| return "!unkown!"; |
| } |
| } |
| |
| |
| /** |
| * Return a string representation of the given swizzle word. |
| */ |
| static const char * |
| swizzle_string(GLuint swizzle, GLuint negateBase) |
| { |
| static const char swz[] = "xyzw01"; |
| static char s[20]; |
| GLuint i = 0; |
| |
| if (swizzle == SWIZZLE_NOOP && negateBase == 0) |
| return ""; /* no swizzle/negation */ |
| |
| s[i++] = '.'; |
| |
| if (negateBase & 0x1) |
| s[i++] = '-'; |
| s[i++] = swz[GET_SWZ(swizzle, 0)]; |
| |
| if (negateBase & 0x2) |
| s[i++] = '-'; |
| s[i++] = swz[GET_SWZ(swizzle, 1)]; |
| |
| if (negateBase & 0x4) |
| s[i++] = '-'; |
| s[i++] = swz[GET_SWZ(swizzle, 2)]; |
| |
| if (negateBase & 0x8) |
| s[i++] = '-'; |
| s[i++] = swz[GET_SWZ(swizzle, 3)]; |
| |
| s[i] = 0; |
| return s; |
| } |
| |
| |
| static const char * |
| writemask_string(GLuint writeMask) |
| { |
| static char s[10]; |
| GLuint i = 0; |
| |
| if (writeMask == WRITEMASK_XYZW) |
| return ""; |
| |
| s[i++] = '.'; |
| if (writeMask & WRITEMASK_X) |
| s[i++] = 'x'; |
| if (writeMask & WRITEMASK_Y) |
| s[i++] = 'y'; |
| if (writeMask & WRITEMASK_Z) |
| s[i++] = 'z'; |
| if (writeMask & WRITEMASK_W) |
| s[i++] = 'w'; |
| |
| s[i] = 0; |
| return s; |
| } |
| |
| |
| /** |
| * Print a single vertex/fragment program instruction. |
| */ |
| void |
| _mesa_print_instruction(const struct prog_instruction *inst) |
| { |
| switch (inst->Opcode) { |
| case OPCODE_PRINT: |
| _mesa_printf("PRINT '%s'", inst->Data); |
| if (inst->SrcReg[0].File != PROGRAM_UNDEFINED) { |
| _mesa_printf(", "); |
| _mesa_printf("%s[%d]%s", |
| program_file_string(inst->SrcReg[0].File), |
| inst->SrcReg[0].Index, |
| swizzle_string(inst->SrcReg[0].Swizzle, |
| inst->SrcReg[0].NegateBase)); |
| } |
| _mesa_printf(";\n"); |
| break; |
| /* XXX check for a bunch of other special-case instructions */ |
| default: |
| /* typical alu instruction */ |
| { |
| const GLuint numRegs = _mesa_num_inst_src_regs(inst->Opcode); |
| GLuint j; |
| |
| _mesa_printf("%s", _mesa_opcode_string(inst->Opcode)); |
| |
| /* frag prog only */ |
| if (inst->Saturate) |
| _mesa_printf("_SAT"); |
| |
| if (inst->DstReg.File != PROGRAM_UNDEFINED) { |
| _mesa_printf(" %s[%d]%s", |
| program_file_string(inst->DstReg.File), |
| inst->DstReg.Index, |
| writemask_string(inst->DstReg.WriteMask)); |
| } |
| |
| if (numRegs > 0) |
| _mesa_printf(", "); |
| |
| for (j = 0; j < numRegs; j++) { |
| _mesa_printf("%s[%d]%s", |
| program_file_string(inst->SrcReg[j].File), |
| inst->SrcReg[j].Index, |
| swizzle_string(inst->SrcReg[j].Swizzle, |
| inst->SrcReg[j].NegateBase)); |
| if (j + 1 < numRegs) |
| _mesa_printf(", "); |
| } |
| |
| _mesa_printf(";\n"); |
| } |
| } |
| } |
| |
| |
| /** |
| * Print a vertx/fragment program to stdout. |
| * XXX this function could be greatly improved. |
| */ |
| void |
| _mesa_print_program(const struct program *prog) |
| { |
| GLuint i; |
| for (i = 0; i < prog->NumInstructions; i++) { |
| _mesa_printf("%3d: ", i); |
| _mesa_print_instruction(prog->Instructions + i); |
| } |
| } |
| |
| |
| /** |
| * Print all of a program's parameters. |
| */ |
| void |
| _mesa_print_program_parameters(GLcontext *ctx, const struct program *prog) |
| { |
| GLint i; |
| |
| _mesa_printf("NumInstructions=%d\n", prog->NumInstructions); |
| _mesa_printf("NumTemporaries=%d\n", prog->NumTemporaries); |
| _mesa_printf("NumParameters=%d\n", prog->NumParameters); |
| _mesa_printf("NumAttributes=%d\n", prog->NumAttributes); |
| _mesa_printf("NumAddressRegs=%d\n", prog->NumAddressRegs); |
| |
| _mesa_load_state_parameters(ctx, prog->Parameters); |
| |
| #if 0 |
| _mesa_printf("Local Params:\n"); |
| for (i = 0; i < MAX_PROGRAM_LOCAL_PARAMS; i++){ |
| const GLfloat *p = prog->LocalParams[i]; |
| _mesa_printf("%2d: %f, %f, %f, %f\n", i, p[0], p[1], p[2], p[3]); |
| } |
| #endif |
| |
| for (i = 0; i < prog->Parameters->NumParameters; i++){ |
| const GLfloat *p = prog->Parameters->ParameterValues[i]; |
| _mesa_printf("param %02d:", i); |
| |
| switch (prog->Parameters->Parameters[i].Type) { |
| case PROGRAM_NAMED_PARAM: |
| _mesa_printf("%s", prog->Parameters->Parameters[i].Name); |
| _mesa_printf("(NAMED_PARAMETER)"); |
| break; |
| case PROGRAM_CONSTANT: |
| _mesa_printf("(CONSTANT)"); |
| break; |
| case PROGRAM_STATE_VAR: |
| _mesa_printf("(STATE)\n"); |
| break; |
| default: |
| _mesa_printf("(UNK)\n"); |
| break; |
| } |
| |
| _mesa_printf("{ %f, %f, %f, %f }\n", p[0], p[1], p[2], p[3]); |
| } |
| } |
| |
| |
| |
| /**********************************************************************/ |
| /* 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.VertexProgram.MaxTemps) { |
| _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.VertexProgram.MaxAttribs; i++) { |
| const char *name = _mesa_nv_vertex_input_register_name(i); |
| char number[10]; |
| _mesa_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.FragmentProgram.MaxTemps) { |
| _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.FragmentProgram.MaxAttribs; 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_RESULT_COLR]); |
| } |
| else if (_mesa_strcmp(reg, "o[COLH]") == 0) { |
| /* Fragment output color */ |
| COPY_4V(v, ctx->FragmentProgram.Machine.Outputs[FRAG_RESULT_COLH]); |
| } |
| else if (_mesa_strcmp(reg, "o[DEPR]") == 0) { |
| /* Fragment output depth */ |
| COPY_4V(v, ctx->FragmentProgram.Machine.Outputs[FRAG_RESULT_DEPR]); |
| } |
| else { |
| /* try user-defined identifiers */ |
| const GLfloat *value = _mesa_lookup_parameter_value( |
| ctx->FragmentProgram.Current->Base.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; |
| } |
| |
| } |