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Diffstat (limited to 'src/mesa/shader/program.c')
| -rw-r--r-- | src/mesa/shader/program.c | 2286 |
1 files changed, 2286 insertions, 0 deletions
diff --git a/src/mesa/shader/program.c b/src/mesa/shader/program.c new file mode 100644 index 0000000000..ddfad47b89 --- /dev/null +++ b/src/mesa/shader/program.c @@ -0,0 +1,2286 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5.2 + * + * 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 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" + + +static const char * +make_state_string(const GLint stateTokens[6]); + +static GLbitfield +make_state_flags(const GLint state[]); + + +/**********************************************************************/ +/* Utility functions */ +/**********************************************************************/ + + +/* A pointer to this dummy program is put into the hash table when + * glGenPrograms is called. + */ +struct gl_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 gl_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 gl_fragment_program *) ctx->Shared->DefaultFragmentProgram; + assert(ctx->FragmentProgram.Current); + ctx->FragmentProgram.Current->Base.RefCount++; +#endif + + /* XXX probably move this stuff */ +#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->RefCount++; +#endif +} + + +/** + * Free a context's vertex/fragment program state + */ +void +_mesa_free_program_data(GLcontext *ctx) +{ +#if FEATURE_NV_vertex_program || FEATURE_ARB_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 || FEATURE_ARB_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 + /* XXX probably move this stuff */ +#if FEATURE_ATI_fragment_shader + if (ctx->ATIFragmentShader.Current) { + ctx->ATIFragmentShader.Current->RefCount--; + if (ctx->ATIFragmentShader.Current->RefCount <= 0) { + _mesa_free(ctx->ATIFragmentShader.Current); + } + } +#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 gl_program * +_mesa_init_program_struct( GLcontext *ctx, struct gl_program *prog, + GLenum target, GLuint id) +{ + (void) ctx; + if (prog) { + prog->Id = id; + prog->Target = target; + prog->Resident = GL_TRUE; + prog->RefCount = 1; + prog->Format = GL_PROGRAM_FORMAT_ASCII_ARB; + } + + return prog; +} + + +/** + * Initialize a new fragment program object. + */ +struct gl_program * +_mesa_init_fragment_program( GLcontext *ctx, struct gl_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 gl_program * +_mesa_init_vertex_program( GLcontext *ctx, struct gl_vertex_program *prog, + GLenum target, GLuint id) +{ + if (prog) + return _mesa_init_program_struct( ctx, &prog->Base, target, id ); + else + return NULL; +} + + +/** + * Allocate and initialize a new fragment/vertex program object but + * don't put it into the program hash table. Called via + * ctx->Driver.NewProgram. May be overridden (ie. replaced) by a + * device driver function to implement OO deriviation with additional + * types not understood by this function. + * + * \param ctx context + * \param id program id/number + * \param target program target/type + * \return pointer to new program object + */ +struct gl_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(gl_vertex_program), + target, id ); + case GL_FRAGMENT_PROGRAM_NV: + case GL_FRAGMENT_PROGRAM_ARB: + return _mesa_init_fragment_program(ctx, + CALLOC_STRUCT(gl_fragment_program), + target, id ); + default: + _mesa_problem(ctx, "bad target in _mesa_new_program"); + return NULL; + } +} + + +/** + * Delete a program and remove it from the hash table, ignoring the + * reference count. + * Called via ctx->Driver.DeleteProgram. May be wrapped (OO deriviation) + * by a device driver function. + */ +void +_mesa_delete_program(GLcontext *ctx, struct gl_program *prog) +{ + (void) ctx; + ASSERT(prog); + + if (prog == &_mesa_DummyProgram) + return; + + 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); + } + + /* XXX this is a little ugly */ + if (prog->Target == GL_VERTEX_PROGRAM_ARB) { + struct gl_vertex_program *vprog = (struct gl_vertex_program *) prog; + if (vprog->TnlData) + _mesa_free(vprog->TnlData); + } + + _mesa_free(prog); +} + + +/** + * Return the gl_program object for a given ID. + * Basically just a wrapper for _mesa_HashLookup() to avoid a lot of + * casts elsewhere. + */ +struct gl_program * +_mesa_lookup_program(GLcontext *ctx, GLuint id) +{ + if (id) + return (struct gl_program *) _mesa_HashLookup(ctx->Shared->Programs, id); + else + return NULL; +} + + +/**********************************************************************/ +/* Program parameter functions */ +/**********************************************************************/ + +struct gl_program_parameter_list * +_mesa_new_parameter_list(void) +{ + return (struct gl_program_parameter_list *) + _mesa_calloc(sizeof(struct gl_program_parameter_list)); +} + + +/** + * Free a parameter list and all its parameters + */ +void +_mesa_free_parameter_list(struct gl_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); + } + _mesa_free(paramList->Parameters); + if (paramList->ParameterValues) + _mesa_align_free(paramList->ParameterValues); + _mesa_free(paramList); +} + + +/** + * Add a new parameter to a parameter list. + * \param paramList the list to add the parameter to + * \param name the parameter name, will be duplicated/copied! + * \param values initial parameter value, 4 GLfloats + * \param type type of parameter, such as + * \return index of new parameter in the list, or -1 if error (out of mem) + */ +static GLint +add_parameter(struct gl_program_parameter_list *paramList, + const char *name, const GLfloat values[4], + enum register_file type) +{ + const GLuint n = paramList->NumParameters; + + if (n == paramList->Size) { + /* Need to grow the parameter list array */ + if (paramList->Size == 0) + paramList->Size = 8; + else + paramList->Size *= 2; + + /* realloc arrays */ + paramList->Parameters = (struct gl_program_parameter *) + _mesa_realloc(paramList->Parameters, + n * sizeof(struct gl_program_parameter), + paramList->Size * sizeof(struct gl_program_parameter)); + + paramList->ParameterValues = (GLfloat (*)[4]) + _mesa_align_realloc(paramList->ParameterValues, /* old buf */ + n * 4 * sizeof(GLfloat), /* old size */ + paramList->Size * 4 *sizeof(GLfloat), /* new sz */ + 16); + } + + 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 gl_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 gl_program_parameter_list *paramList, + const char *name, const GLfloat values[4]) +{ + return add_parameter(paramList, name, values, PROGRAM_NAMED_PARAM); +} + + +/** + * Add a new named constant to the parameter list. + * This will be used when the program contains something like this: + * PARAM myVals = { 0, 1, 2, 3 }; + * + * \param paramList the parameter list + * \param name the name for the constant + * \param values four float values + * \return index/position of the new parameter in the parameter list + */ +GLint +_mesa_add_named_constant(struct gl_program_parameter_list *paramList, + const char *name, const GLfloat values[4], + GLuint size) +{ +#if 0 /* disable this for now -- we need to save the name! */ + GLuint pos, swizzle; + ASSERT(size == 4); /* XXX future feature */ + /* check if we already have this constant */ + if (_mesa_lookup_parameter_constant(paramList, values, 4, &pos, &swizzle)) { + return pos; + } +#endif + return add_parameter(paramList, name, values, PROGRAM_CONSTANT); +} + + +/** + * Add a new unnamed constant to the parameter list. + * This will be used when the program contains something like this: + * MOV r, { 0, 1, 2, 3 }; + * + * \param paramList the parameter list + * \param values four float values + * \return index/position of the new parameter in the parameter list. + */ +GLint +_mesa_add_unnamed_constant(struct gl_program_parameter_list *paramList, + const GLfloat values[4], GLuint size) +{ + GLuint pos, swizzle; + ASSERT(size == 4); /* XXX future feature */ + /* check if we already have this constant */ + if (_mesa_lookup_parameter_constant(paramList, values, 4, &pos, &swizzle)) { + return pos; + } + return add_parameter(paramList, NULL, values, PROGRAM_CONSTANT); +} + + +/** + * Add a new state reference to the parameter list. + * This will be used when the program contains something like this: + * PARAM ambient = state.material.front.ambient; + * + * \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 gl_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; + const char *name = make_state_string(stateTokens); + + index = add_parameter(paramList, name, 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]; + } + paramList->StateFlags |= make_state_flags(stateTokens); + } + + /* free name string here since we duplicated it in add_parameter() */ + _mesa_free((void *) name); + + 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(const struct gl_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; +} + + +/** + * Given a program parameter name, find its position in the list of parameters. + * \param paramList the parameter list to search + * \param nameLen length of name (in chars). + * If length is negative, assume that name is null-terminated. + * \param name the name to search for + * \return index of parameter in the list. + */ +GLint +_mesa_lookup_parameter_index(const struct gl_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; +} + + +/** + * Look for a float vector in the given parameter list. The float vector + * may be of length 1, 2, 3 or 4. + * \param paramList the parameter list to search + * \param v the float vector to search for + * \param size number of element in v + * \param posOut returns the position of the constant, if found + * \param swizzleOut returns a swizzle mask describing location of the + * vector elements if found + * \return GL_TRUE if found, GL_FALSE if not found + */ +GLboolean +_mesa_lookup_parameter_constant(const struct gl_program_parameter_list *paramList, + const GLfloat v[], GLsizei vSize, + GLuint *posOut, GLuint *swizzleOut) +{ + GLuint i; + + assert(vSize >= 1); + assert(vSize <= 4); + + if (!paramList) + return -1; + + for (i = 0; i < paramList->NumParameters; i++) { + if (paramList->Parameters[i].Type == PROGRAM_CONSTANT) { + const GLint maxShift = 4 - vSize; + GLint shift, j; + for (shift = 0; shift <= maxShift; shift++) { + GLint matched = 0; + GLuint swizzle[4]; + swizzle[0] = swizzle[1] = swizzle[2] = swizzle[3] = 0; + /* XXX we could do out-of-order swizzle matches too, someday */ + for (j = 0; j < vSize; j++) { + assert(shift + j < 4); + if (paramList->ParameterValues[i][shift + j] == v[j]) { + matched++; + swizzle[j] = shift + j; + } + } + if (matched == vSize) { + /* found! */ + *posOut = i; + *swizzleOut = MAKE_SWIZZLE4(swizzle[0], swizzle[1], + swizzle[2], swizzle[3]); + return GL_TRUE; + } + } + } + } + + return GL_FALSE; +} + + +/** + * 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]; + 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 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_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 = 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; + 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. + */ +static GLbitfield +make_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 make_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, enum 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. + */ +static const char * +make_state_string(const GLint state[6]) +{ + char str[1000] = ""; + char tmp[30]; + + append(str, "state."); + append_token(str, (enum state_index) state[0]); + + switch (state[0]) { + case STATE_MATERIAL: + append_face(str, state[1]); + append_token(str, (enum state_index) state[2]); + break; + case STATE_LIGHT: + append(str, "light"); + append_index(str, state[1]); /* light number [i]. */ + append_token(str, (enum 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, (enum state_index) state[3]); + break; + case STATE_TEXGEN: + append_index(str, state[1]); /* tex unit [i] */ + append_token(str, (enum 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 column to fetch */ + /* state[4] = last column to fetch */ + /* state[5] = transpose, inverse or invtrans */ + const enum state_index mat = (enum state_index) 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 = (enum state_index) state[5]; + append_token(str, mat); + if (index) + append_index(str, index); + if (modifier) + append_token(str, modifier); + if (first == last) + _mesa_sprintf(tmp, ".row[%d]", first); + else + _mesa_sprintf(tmp, ".row[%d..%d]", first, last); + 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, (enum state_index) state[1]); + append_index(str, state[2]); + break; + case STATE_INTERNAL: + break; + default: + _mesa_problem(NULL, "Invalid state in make_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]); + } + } +} + + +/** + * Initialize program instruction fields to defaults. + * \param inst first instruction to initialize + * \param count number of instructions to initialize + */ +void +_mesa_init_instructions(struct prog_instruction *inst, GLuint count) +{ + GLuint i; + + _mesa_bzero(inst, count * sizeof(struct prog_instruction)); + + for (i = 0; i < count; i++) { + inst[i].SrcReg[0].File = PROGRAM_UNDEFINED; + inst[i].SrcReg[0].Swizzle = SWIZZLE_NOOP; + inst[i].SrcReg[1].File = PROGRAM_UNDEFINED; + inst[i].SrcReg[1].Swizzle = SWIZZLE_NOOP; + inst[i].SrcReg[2].File = PROGRAM_UNDEFINED; + inst[i].SrcReg[2].Swizzle = SWIZZLE_NOOP; + + inst[i].DstReg.File = PROGRAM_UNDEFINED; + inst[i].DstReg.WriteMask = WRITEMASK_XYZW; + inst[i].DstReg.CondMask = COND_TR; + inst[i].DstReg.CondSwizzle = SWIZZLE_NOOP; + + inst[i].SaturateMode = SATURATE_OFF; + inst[i].Precision = FLOAT32; + } +} + + +/** + * Allocate an array of program instructions. + * \param numInst number of instructions + * \return pointer to instruction memory + */ +struct prog_instruction * +_mesa_alloc_instructions(GLuint numInst) +{ + return (struct prog_instruction *) + _mesa_calloc(numInst * sizeof(struct prog_instruction)); +} + + +/** + * Reallocate memory storing an array of program instructions. + * This is used when we need to append additional instructions onto an + * program. + * \param oldInst pointer to first of old/src instructions + * \param numOldInst number of instructions at <oldInst> + * \param numNewInst desired size of new instruction array. + * \return pointer to start of new instruction array. + */ +struct prog_instruction * +_mesa_realloc_instructions(struct prog_instruction *oldInst, + GLuint numOldInst, GLuint numNewInst) +{ + struct prog_instruction *newInst; + + newInst = (struct prog_instruction *) + _mesa_realloc(oldInst, + numOldInst * sizeof(struct prog_instruction), + numNewInst * sizeof(struct prog_instruction)); + + return newInst; +} + + +/** + * 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) +{ + ASSERT(opcode == InstInfo[opcode].Opcode); + return InstInfo[opcode].NumSrcRegs; +} + + +/** + * 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. + * If extended is true, use extended (comma-separated) format. + */ +static const char * +swizzle_string(GLuint swizzle, GLuint negateBase, GLboolean extended) +{ + static const char swz[] = "xyzw01"; + static char s[20]; + GLuint i = 0; + + if (!extended && swizzle == SWIZZLE_NOOP && negateBase == 0) + return ""; /* no swizzle/negation */ + + if (!extended) + s[i++] = '.'; + + if (negateBase & 0x1) + s[i++] = '-'; + s[i++] = swz[GET_SWZ(swizzle, 0)]; + + if (extended) { + s[i++] = ','; + } + + if (negateBase & 0x2) + s[i++] = '-'; + s[i++] = swz[GET_SWZ(swizzle, 1)]; + + if (extended) { + s[i++] = ','; + } + + if (negateBase & 0x4) + s[i++] = '-'; + s[i++] = swz[GET_SWZ(swizzle, 2)]; + + if (extended) { + s[i++] = ','; + } + + 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; +} + +static void +print_dst_reg(const struct prog_dst_register *dstReg) +{ + _mesa_printf(" %s[%d]%s", + program_file_string((enum register_file) dstReg->File), + dstReg->Index, + writemask_string(dstReg->WriteMask)); +} + +static void +print_src_reg(const struct prog_src_register *srcReg) +{ + _mesa_printf("%s[%d]%s", + program_file_string((enum register_file) srcReg->File), + srcReg->Index, + swizzle_string(srcReg->Swizzle, + srcReg->NegateBase, GL_FALSE)); +} + +void +_mesa_print_alu_instruction(const struct prog_instruction *inst, + const char *opcode_string, + GLuint numRegs) +{ + GLuint j; + + _mesa_printf("%s", opcode_string); + + /* frag prog only */ + if (inst->SaturateMode == SATURATE_ZERO_ONE) + _mesa_printf("_SAT"); + + if (inst->DstReg.File != PROGRAM_UNDEFINED) { + _mesa_printf(" %s[%d]%s", + program_file_string((enum register_file) inst->DstReg.File), + inst->DstReg.Index, + writemask_string(inst->DstReg.WriteMask)); + } + + if (numRegs > 0) + _mesa_printf(", "); + + for (j = 0; j < numRegs; j++) { + print_src_reg(inst->SrcReg + j); + if (j + 1 < numRegs) + _mesa_printf(", "); + } + + _mesa_printf(";\n"); +} + + +/** + * 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((enum register_file) inst->SrcReg[0].File), + inst->SrcReg[0].Index, + swizzle_string(inst->SrcReg[0].Swizzle, + inst->SrcReg[0].NegateBase, GL_FALSE)); + } + _mesa_printf(";\n"); + break; + case OPCODE_SWZ: + _mesa_printf("SWZ"); + if (inst->SaturateMode == SATURATE_ZERO_ONE) + _mesa_printf("_SAT"); + print_dst_reg(&inst->DstReg); + _mesa_printf("%s[%d], %s;\n", + program_file_string((enum register_file) inst->SrcReg[0].File), + inst->SrcReg[0].Index, + swizzle_string(inst->SrcReg[0].Swizzle, + inst->SrcReg[0].NegateBase, GL_TRUE)); + break; + case OPCODE_TEX: + case OPCODE_TXP: + case OPCODE_TXB: + _mesa_printf("%s", _mesa_opcode_string(inst->Opcode)); + if (inst->SaturateMode == SATURATE_ZERO_ONE) + _mesa_printf("_SAT"); + _mesa_printf(" "); + print_dst_reg(&inst->DstReg); + _mesa_printf(", "); + print_src_reg(&inst->SrcReg[0]); + _mesa_printf(", texture[%d], ", inst->TexSrcUnit); + switch (inst->TexSrcTarget) { + case TEXTURE_1D_INDEX: _mesa_printf("1D"); break; + case TEXTURE_2D_INDEX: _mesa_printf("2D"); break; + case TEXTURE_3D_INDEX: _mesa_printf("3D"); break; + case TEXTURE_CUBE_INDEX: _mesa_printf("CUBE"); break; + case TEXTURE_RECT_INDEX: _mesa_printf("RECT"); break; + default: + ; + } + _mesa_printf("\n"); + break; + case OPCODE_ARL: + _mesa_printf("ARL addr.x, "); + print_src_reg(&inst->SrcReg[0]); + _mesa_printf(";\n"); + break; + case OPCODE_END: + _mesa_printf("END;\n"); + break; + /* XXX may need for other special-case instructions */ + default: + /* typical alu instruction */ + _mesa_print_alu_instruction(inst, + _mesa_opcode_string(inst->Opcode), + _mesa_num_inst_src_regs(inst->Opcode)); + break; + } +} + + +/** + * Print a vertx/fragment program to stdout. + * XXX this function could be greatly improved. + */ +void +_mesa_print_program(const struct gl_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 gl_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++){ + struct gl_program_parameter *param = prog->Parameters->Parameters + i; + const GLfloat *v = prog->Parameters->ParameterValues[i]; + _mesa_printf("param[%d] %s = {%.3f, %.3f, %.3f, %.3f};\n", + i, param->Name, v[0], v[1], v[2], v[3]); + } +} + + +/** + * Mixing ARB and NV vertex/fragment programs can be tricky. + * Note: GL_VERTEX_PROGRAM_ARB == GL_VERTEX_PROGRAM_NV + * but, GL_FRAGMENT_PROGRAM_ARB != GL_FRAGMENT_PROGRAM_NV + * The two different fragment program targets are supposed to be compatible + * to some extent (see GL_ARB_fragment_program spec). + * This function does the compatibility check. + */ +static GLboolean +compatible_program_targets(GLenum t1, GLenum t2) +{ + if (t1 == t2) + return GL_TRUE; + if (t1 == GL_FRAGMENT_PROGRAM_ARB && t2 == GL_FRAGMENT_PROGRAM_NV) + return GL_TRUE; + if (t1 == GL_FRAGMENT_PROGRAM_NV && t2 == GL_FRAGMENT_PROGRAM_ARB) + return GL_TRUE; + return GL_FALSE; +} + + + +/**********************************************************************/ +/* 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 gl_program *curProg, *newProg; + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + FLUSH_VERTICES(ctx, _NEW_PROGRAM); + + /* Error-check target and get curProg */ + if ((target == GL_VERTEX_PROGRAM_ARB) && /* == GL_VERTEX_PROGRAM_NV */ + (ctx->Extensions.NV_vertex_program || + ctx->Extensions.ARB_vertex_program)) { + curProg = &ctx->VertexProgram.Current->Base; + } + else if ((target == GL_FRAGMENT_PROGRAM_NV + && ctx->Extensions.NV_fragment_program) || + (target == GL_FRAGMENT_PROGRAM_ARB + && ctx->Extensions.ARB_fragment_program)) { + curProg = &ctx->FragmentProgram.Current->Base; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, "glBindProgramNV/ARB(target)"); + return; + } + + /* + * Get pointer to new program to bind. + * NOTE: binding to a non-existant program is not an error. + * That's supposed to be caught in glBegin. + */ + if (id == 0) { + /* Bind a default program */ + newProg = NULL; + if (target == GL_VERTEX_PROGRAM_ARB) /* == GL_VERTEX_PROGRAM_NV */ + newProg = ctx->Shared->DefaultVertexProgram; + else + newProg = ctx->Shared->DefaultFragmentProgram; + } + else { + /* Bind a user program */ + newProg = _mesa_lookup_program(ctx, id); + if (!newProg || newProg == &_mesa_DummyProgram) { + /* allocate a new program now */ + newProg = ctx->Driver.NewProgram(ctx, target, id); + if (!newProg) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindProgramNV/ARB"); + return; + } + _mesa_HashInsert(ctx->Shared->Programs, id, newProg); + } + else if (!compatible_program_targets(newProg->Target, target)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glBindProgramNV/ARB(target mismatch)"); + return; + } + } + + /** All error checking is complete now **/ + + if (curProg->Id == id) { + /* binding same program - no change */ + return; + } + + /* unbind/delete oldProg */ + if (curProg->Id != 0) { + /* decrement refcount on previously bound fragment program */ + curProg->RefCount--; + /* and delete if refcount goes below one */ + if (curProg->RefCount <= 0) { + /* the program ID was already removed from the hash table */ + ctx->Driver.DeleteProgram(ctx, curProg); + } + } + + /* bind newProg */ + if (target == GL_VERTEX_PROGRAM_ARB) { /* == GL_VERTEX_PROGRAM_NV */ + ctx->VertexProgram.Current = (struct gl_vertex_program *) newProg; + } + else if (target == GL_FRAGMENT_PROGRAM_NV || + target == GL_FRAGMENT_PROGRAM_ARB) { + ctx->FragmentProgram.Current = (struct gl_fragment_program *) newProg; + } + newProg->RefCount++; + + /* Never null pointers */ + ASSERT(ctx->VertexProgram.Current); + ASSERT(ctx->FragmentProgram.Current); + + if (ctx->Driver.BindProgram) + ctx->Driver.BindProgram(ctx, target, newProg); +} + + +/** + * 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 gl_program *prog = _mesa_lookup_program(ctx, 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_ARB || /* == 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; + } +} + + +/**********************************************************************/ +/* 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_ARB: /* == 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; + } +#if 0 /* FIX ME */ + ctx->Driver.GetVertexProgramRegister(ctx, PROGRAM_TEMPORARY, i, v); +#endif + } + 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) { +#if 0 /* FIX ME */ + ctx->Driver.GetVertexProgramRegister(ctx, PROGRAM_INPUT, + i, v); +#endif + 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; + } + ctx->Driver.GetFragmentProgramRegister(ctx, PROGRAM_TEMPORARY, + i, v); + } + 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) { + ctx->Driver.GetFragmentProgramRegister(ctx, + PROGRAM_INPUT, i, v); + return; + } + } + _mesa_error(ctx, GL_INVALID_VALUE, + "glGetProgramRegisterfvMESA(registerName)"); + return; + } + else if (_mesa_strcmp(reg, "o[COLR]") == 0) { + /* Fragment output color */ + ctx->Driver.GetFragmentProgramRegister(ctx, PROGRAM_OUTPUT, + FRAG_RESULT_COLR, v); + } + else if (_mesa_strcmp(reg, "o[COLH]") == 0) { + /* Fragment output color */ + ctx->Driver.GetFragmentProgramRegister(ctx, PROGRAM_OUTPUT, + FRAG_RESULT_COLH, v); + } + else if (_mesa_strcmp(reg, "o[DEPR]") == 0) { + /* Fragment output depth */ + ctx->Driver.GetFragmentProgramRegister(ctx, PROGRAM_OUTPUT, + FRAG_RESULT_DEPR, v); + } + 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; + } +} |