/* * Mesa 3-D graphics library * * Copyright (C) 1999-2007 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 * THE AUTHORS OR COPYRIGHT HOLDERS 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 arbprogram.c * ARB_vertex/fragment_program state management functions. * \author Brian Paul */ #include "main/glheader.h" #include "main/context.h" #include "main/hash.h" #include "main/imports.h" #include "main/macros.h" #include "main/mtypes.h" #include "main/arbprogram.h" #include "program/arbprogparse.h" #include "program/program.h" #include "program/prog_print.h" /** * Bind a program (make it current) * \note Called from the GL API dispatcher by both glBindProgramNV * and glBindProgramARB. */ void GLAPIENTRY _mesa_BindProgramARB(GLenum target, GLuint id) { struct gl_program *curProg, *newProg; GET_CURRENT_CONTEXT(ctx); /* Error-check target and get curProg */ if (target == GL_VERTEX_PROGRAM_ARB && ctx->Extensions.ARB_vertex_program) { curProg = &ctx->VertexProgram.Current->Base; } else if (target == GL_FRAGMENT_PROGRAM_ARB && ctx->Extensions.ARB_fragment_program) { curProg = &ctx->FragmentProgram.Current->Base; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glBindProgramARB(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) newProg = &ctx->Shared->DefaultVertexProgram->Base; else newProg = &ctx->Shared->DefaultFragmentProgram->Base; } 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, "glBindProgramARB"); return; } _mesa_HashInsert(ctx->Shared->Programs, id, newProg); } else if (newProg->Target != target) { _mesa_error(ctx, GL_INVALID_OPERATION, "glBindProgramARB(target mismatch)"); return; } } /** All error checking is complete now **/ if (curProg->Id == id) { /* binding same program - no change */ return; } /* signal new program (and its new constants) */ FLUSH_VERTICES(ctx, _NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS); /* bind newProg */ if (target == GL_VERTEX_PROGRAM_ARB) { _mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current, gl_vertex_program(newProg)); } else if (target == GL_FRAGMENT_PROGRAM_ARB) { _mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, gl_fragment_program(newProg)); } /* 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_DeleteProgramsARB(GLsizei n, const GLuint *ids) { GLint i; GET_CURRENT_CONTEXT(ctx); FLUSH_VERTICES(ctx, 0); 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 */ switch (prog->Target) { case GL_VERTEX_PROGRAM_ARB: if (ctx->VertexProgram.Current && ctx->VertexProgram.Current->Base.Id == ids[i]) { /* unbind this currently bound program */ _mesa_BindProgramARB(prog->Target, 0); } break; case GL_FRAGMENT_PROGRAM_ARB: if (ctx->FragmentProgram.Current && ctx->FragmentProgram.Current->Base.Id == ids[i]) { /* unbind this currently bound program */ _mesa_BindProgramARB(prog->Target, 0); } break; default: _mesa_problem(ctx, "bad target in glDeleteProgramsNV"); return; } /* The ID is immediately available for re-use now */ _mesa_HashRemove(ctx->Shared->Programs, ids[i]); _mesa_reference_program(ctx, &prog, NULL); } } } } /** * Generate a list of new program identifiers. * \note Not compiled into display lists. * \note Called by both glGenProgramsNV and glGenProgramsARB. */ void GLAPIENTRY _mesa_GenProgramsARB(GLsizei n, GLuint *ids) { GLuint first; GLuint i; GET_CURRENT_CONTEXT(ctx); if (n < 0) { _mesa_error(ctx, GL_INVALID_VALUE, "glGenPrograms"); return; } if (!ids) return; _mesa_HashLockMutex(ctx->Shared->Programs); first = _mesa_HashFindFreeKeyBlock(ctx->Shared->Programs, n); /* Insert pointer to dummy program as placeholder */ for (i = 0; i < (GLuint) n; i++) { _mesa_HashInsertLocked(ctx->Shared->Programs, first + i, &_mesa_DummyProgram); } _mesa_HashUnlockMutex(ctx->Shared->Programs); /* 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_IsProgramARB(GLuint id) { struct gl_program *prog = NULL; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); if (id == 0) return GL_FALSE; prog = _mesa_lookup_program(ctx, id); if (prog && (prog != &_mesa_DummyProgram)) return GL_TRUE; else return GL_FALSE; } static GLboolean get_local_param_pointer(struct gl_context *ctx, const char *func, GLenum target, GLuint index, GLfloat **param) { struct gl_program *prog; GLuint maxParams; if (target == GL_VERTEX_PROGRAM_ARB && ctx->Extensions.ARB_vertex_program) { prog = &(ctx->VertexProgram.Current->Base); maxParams = ctx->Const.Program[MESA_SHADER_VERTEX].MaxLocalParams; } else if (target == GL_FRAGMENT_PROGRAM_ARB && ctx->Extensions.ARB_fragment_program) { prog = &(ctx->FragmentProgram.Current->Base); maxParams = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxLocalParams; } else { _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", func); return GL_FALSE; } if (index >= maxParams) { _mesa_error(ctx, GL_INVALID_VALUE, "%s(index)", func); return GL_FALSE; } if (!prog->LocalParams) { prog->LocalParams = calloc(maxParams, sizeof(float[4])); if (!prog->LocalParams) return GL_FALSE; } *param = prog->LocalParams[index]; return GL_TRUE; } static GLboolean get_env_param_pointer(struct gl_context *ctx, const char *func, GLenum target, GLuint index, GLfloat **param) { if (target == GL_FRAGMENT_PROGRAM_ARB && ctx->Extensions.ARB_fragment_program) { if (index >= ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxEnvParams) { _mesa_error(ctx, GL_INVALID_VALUE, "%s(index)", func); return GL_FALSE; } *param = ctx->FragmentProgram.Parameters[index]; return GL_TRUE; } else if (target == GL_VERTEX_PROGRAM_ARB && ctx->Extensions.ARB_vertex_program) { if (index >= ctx->Const.Program[MESA_SHADER_VERTEX].MaxEnvParams) { _mesa_error(ctx, GL_INVALID_VALUE, "%s(index)", func); return GL_FALSE; } *param = ctx->VertexProgram.Parameters[index]; return GL_TRUE; } else { _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", func); return GL_FALSE; } } void GLAPIENTRY _mesa_ProgramStringARB(GLenum target, GLenum format, GLsizei len, const GLvoid *string) { struct gl_program *base; bool failed; GET_CURRENT_CONTEXT(ctx); FLUSH_VERTICES(ctx, _NEW_PROGRAM); if (!ctx->Extensions.ARB_vertex_program && !ctx->Extensions.ARB_fragment_program) { _mesa_error(ctx, GL_INVALID_OPERATION, "glProgramStringARB()"); return; } if (format != GL_PROGRAM_FORMAT_ASCII_ARB) { _mesa_error(ctx, GL_INVALID_ENUM, "glProgramStringARB(format)"); return; } if (target == GL_VERTEX_PROGRAM_ARB && ctx->Extensions.ARB_vertex_program) { struct gl_vertex_program *prog = ctx->VertexProgram.Current; _mesa_parse_arb_vertex_program(ctx, target, string, len, prog); base = & prog->Base; } else if (target == GL_FRAGMENT_PROGRAM_ARB && ctx->Extensions.ARB_fragment_program) { struct gl_fragment_program *prog = ctx->FragmentProgram.Current; _mesa_parse_arb_fragment_program(ctx, target, string, len, prog); base = & prog->Base; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glProgramStringARB(target)"); return; } failed = ctx->Program.ErrorPos != -1; if (!failed) { /* finally, give the program to the driver for translation/checking */ if (!ctx->Driver.ProgramStringNotify(ctx, target, base)) { failed = true; _mesa_error(ctx, GL_INVALID_OPERATION, "glProgramStringARB(rejected by driver"); } } if (ctx->_Shader->Flags & GLSL_DUMP) { const char *shader_type = target == GL_FRAGMENT_PROGRAM_ARB ? "fragment" : "vertex"; fprintf(stderr, "ARB_%s_program source for program %d:\n", shader_type, base->Id); fprintf(stderr, "%s\n", (const char *) string); if (failed) { fprintf(stderr, "ARB_%s_program %d failed to compile.\n", shader_type, base->Id); } else { fprintf(stderr, "Mesa IR for ARB_%s_program %d:\n", shader_type, base->Id); _mesa_print_program(base); fprintf(stderr, "\n"); } fflush(stderr); } } /** * Set a program env parameter register. * \note Called from the GL API dispatcher. */ void GLAPIENTRY _mesa_ProgramEnvParameter4dARB(GLenum target, GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w) { _mesa_ProgramEnvParameter4fARB(target, index, (GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w); } /** * Set a program env parameter register. * \note Called from the GL API dispatcher. */ void GLAPIENTRY _mesa_ProgramEnvParameter4dvARB(GLenum target, GLuint index, const GLdouble *params) { _mesa_ProgramEnvParameter4fARB(target, index, (GLfloat) params[0], (GLfloat) params[1], (GLfloat) params[2], (GLfloat) params[3]); } /** * Set a program env parameter register. * \note Called from the GL API dispatcher. */ void GLAPIENTRY _mesa_ProgramEnvParameter4fARB(GLenum target, GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w) { GLfloat *param; GET_CURRENT_CONTEXT(ctx); FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS); if (get_env_param_pointer(ctx, "glProgramEnvParameter", target, index, ¶m)) { ASSIGN_4V(param, x, y, z, w); } } /** * Set a program env parameter register. * \note Called from the GL API dispatcher. */ void GLAPIENTRY _mesa_ProgramEnvParameter4fvARB(GLenum target, GLuint index, const GLfloat *params) { GLfloat *param; GET_CURRENT_CONTEXT(ctx); FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS); if (get_env_param_pointer(ctx, "glProgramEnvParameter4fv", target, index, ¶m)) { memcpy(param, params, 4 * sizeof(GLfloat)); } } void GLAPIENTRY _mesa_ProgramEnvParameters4fvEXT(GLenum target, GLuint index, GLsizei count, const GLfloat *params) { GET_CURRENT_CONTEXT(ctx); GLfloat * dest; FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS); if (count <= 0) { _mesa_error(ctx, GL_INVALID_VALUE, "glProgramEnvParameters4fv(count)"); } if (target == GL_FRAGMENT_PROGRAM_ARB && ctx->Extensions.ARB_fragment_program) { if ((index + count) > ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxEnvParams) { _mesa_error(ctx, GL_INVALID_VALUE, "glProgramEnvParameters4fv(index + count)"); return; } dest = ctx->FragmentProgram.Parameters[index]; } else if (target == GL_VERTEX_PROGRAM_ARB && ctx->Extensions.ARB_vertex_program) { if ((index + count) > ctx->Const.Program[MESA_SHADER_VERTEX].MaxEnvParams) { _mesa_error(ctx, GL_INVALID_VALUE, "glProgramEnvParameters4fv(index + count)"); return; } dest = ctx->VertexProgram.Parameters[index]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glProgramEnvParameters4fv(target)"); return; } memcpy(dest, params, count * 4 * sizeof(GLfloat)); } void GLAPIENTRY _mesa_GetProgramEnvParameterdvARB(GLenum target, GLuint index, GLdouble *params) { GET_CURRENT_CONTEXT(ctx); GLfloat *fparam; if (get_env_param_pointer(ctx, "glGetProgramEnvParameterdv", target, index, &fparam)) { COPY_4V(params, fparam); } } void GLAPIENTRY _mesa_GetProgramEnvParameterfvARB(GLenum target, GLuint index, GLfloat *params) { GLfloat *param; GET_CURRENT_CONTEXT(ctx); if (get_env_param_pointer(ctx, "glGetProgramEnvParameterfv", target, index, ¶m)) { COPY_4V(params, param); } } void GLAPIENTRY _mesa_ProgramLocalParameter4fARB(GLenum target, GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w) { GET_CURRENT_CONTEXT(ctx); GLfloat *param; FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS); if (get_local_param_pointer(ctx, "glProgramLocalParameterARB", target, index, ¶m)) { assert(index < MAX_PROGRAM_LOCAL_PARAMS); ASSIGN_4V(param, x, y, z, w); } } void GLAPIENTRY _mesa_ProgramLocalParameter4fvARB(GLenum target, GLuint index, const GLfloat *params) { _mesa_ProgramLocalParameter4fARB(target, index, params[0], params[1], params[2], params[3]); } void GLAPIENTRY _mesa_ProgramLocalParameters4fvEXT(GLenum target, GLuint index, GLsizei count, const GLfloat *params) { GET_CURRENT_CONTEXT(ctx); GLfloat *dest; FLUSH_VERTICES(ctx, _NEW_PROGRAM_CONSTANTS); if (count <= 0) { _mesa_error(ctx, GL_INVALID_VALUE, "glProgramLocalParameters4fv(count)"); } if (get_local_param_pointer(ctx, "glProgramLocalParameters4fvEXT", target, index, &dest)) { GLuint maxParams = target == GL_FRAGMENT_PROGRAM_ARB ? ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxLocalParams : ctx->Const.Program[MESA_SHADER_VERTEX].MaxLocalParams; if ((index + count) > maxParams) { _mesa_error(ctx, GL_INVALID_VALUE, "glProgramLocalParameters4fvEXT(index + count)"); return; } memcpy(dest, params, count * 4 * sizeof(GLfloat)); } } void GLAPIENTRY _mesa_ProgramLocalParameter4dARB(GLenum target, GLuint index, GLdouble x, GLdouble y, GLdouble z, GLdouble w) { _mesa_ProgramLocalParameter4fARB(target, index, (GLfloat) x, (GLfloat) y, (GLfloat) z, (GLfloat) w); } void GLAPIENTRY _mesa_ProgramLocalParameter4dvARB(GLenum target, GLuint index, const GLdouble *params) { _mesa_ProgramLocalParameter4fARB(target, index, (GLfloat) params[0], (GLfloat) params[1], (GLfloat) params[2], (GLfloat) params[3]); } void GLAPIENTRY _mesa_GetProgramLocalParameterfvARB(GLenum target, GLuint index, GLfloat *params) { GLfloat *param; GET_CURRENT_CONTEXT(ctx); if (get_local_param_pointer(ctx, "glProgramLocalParameters4fvEXT", target, index, ¶m)) { COPY_4V(params, param); } } void GLAPIENTRY _mesa_GetProgramLocalParameterdvARB(GLenum target, GLuint index, GLdouble *params) { GLfloat *param; GET_CURRENT_CONTEXT(ctx); if (get_local_param_pointer(ctx, "glProgramLocalParameters4fvEXT", target, index, ¶m)) { COPY_4V(params, param); } } void GLAPIENTRY _mesa_GetProgramivARB(GLenum target, GLenum pname, GLint *params) { const struct gl_program_constants *limits; struct gl_program *prog; GET_CURRENT_CONTEXT(ctx); if (target == GL_VERTEX_PROGRAM_ARB && ctx->Extensions.ARB_vertex_program) { prog = &(ctx->VertexProgram.Current->Base); limits = &ctx->Const.Program[MESA_SHADER_VERTEX]; } else if (target == GL_FRAGMENT_PROGRAM_ARB && ctx->Extensions.ARB_fragment_program) { prog = &(ctx->FragmentProgram.Current->Base); limits = &ctx->Const.Program[MESA_SHADER_FRAGMENT]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramivARB(target)"); return; } assert(prog); assert(limits); /* Queries supported for both vertex and fragment programs */ switch (pname) { case GL_PROGRAM_LENGTH_ARB: *params = prog->String ? (GLint) strlen((char *) prog->String) : 0; return; case GL_PROGRAM_FORMAT_ARB: *params = prog->Format; return; case GL_PROGRAM_BINDING_ARB: *params = prog->Id; return; case GL_PROGRAM_INSTRUCTIONS_ARB: *params = prog->NumInstructions; return; case GL_MAX_PROGRAM_INSTRUCTIONS_ARB: *params = limits->MaxInstructions; return; case GL_PROGRAM_NATIVE_INSTRUCTIONS_ARB: *params = prog->NumNativeInstructions; return; case GL_MAX_PROGRAM_NATIVE_INSTRUCTIONS_ARB: *params = limits->MaxNativeInstructions; return; case GL_PROGRAM_TEMPORARIES_ARB: *params = prog->NumTemporaries; return; case GL_MAX_PROGRAM_TEMPORARIES_ARB: *params = limits->MaxTemps; return; case GL_PROGRAM_NATIVE_TEMPORARIES_ARB: *params = prog->NumNativeTemporaries; return; case GL_MAX_PROGRAM_NATIVE_TEMPORARIES_ARB: *params = limits->MaxNativeTemps; return; case GL_PROGRAM_PARAMETERS_ARB: *params = prog->NumParameters; return; case GL_MAX_PROGRAM_PARAMETERS_ARB: *params = limits->MaxParameters; return; case GL_PROGRAM_NATIVE_PARAMETERS_ARB: *params = prog->NumNativeParameters; return; case GL_MAX_PROGRAM_NATIVE_PARAMETERS_ARB: *params = limits->MaxNativeParameters; return; case GL_PROGRAM_ATTRIBS_ARB: *params = prog->NumAttributes; return; case GL_MAX_PROGRAM_ATTRIBS_ARB: *params = limits->MaxAttribs; return; case GL_PROGRAM_NATIVE_ATTRIBS_ARB: *params = prog->NumNativeAttributes; return; case GL_MAX_PROGRAM_NATIVE_ATTRIBS_ARB: *params = limits->MaxNativeAttribs; return; case GL_PROGRAM_ADDRESS_REGISTERS_ARB: *params = prog->NumAddressRegs; return; case GL_MAX_PROGRAM_ADDRESS_REGISTERS_ARB: *params = limits->MaxAddressRegs; return; case GL_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB: *params = prog->NumNativeAddressRegs; return; case GL_MAX_PROGRAM_NATIVE_ADDRESS_REGISTERS_ARB: *params = limits->MaxNativeAddressRegs; return; case GL_MAX_PROGRAM_LOCAL_PARAMETERS_ARB: *params = limits->MaxLocalParams; return; case GL_MAX_PROGRAM_ENV_PARAMETERS_ARB: *params = limits->MaxEnvParams; return; case GL_PROGRAM_UNDER_NATIVE_LIMITS_ARB: /* * XXX we may not really need a driver callback here. * If the number of native instructions, registers, etc. used * are all below the maximums, we could return true. * The spec says that even if this query returns true, there's * no guarantee that the program will run in hardware. */ if (prog->Id == 0) { /* default/null program */ *params = GL_FALSE; } else if (ctx->Driver.IsProgramNative) { /* ask the driver */ *params = ctx->Driver.IsProgramNative( ctx, target, prog ); } else { /* probably running in software */ *params = GL_TRUE; } return; default: /* continue with fragment-program only queries below */ break; } /* * The following apply to fragment programs only (at this time) */ if (target == GL_FRAGMENT_PROGRAM_ARB) { const struct gl_fragment_program *fp = ctx->FragmentProgram.Current; switch (pname) { case GL_PROGRAM_ALU_INSTRUCTIONS_ARB: *params = fp->Base.NumNativeAluInstructions; return; case GL_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB: *params = fp->Base.NumAluInstructions; return; case GL_PROGRAM_TEX_INSTRUCTIONS_ARB: *params = fp->Base.NumTexInstructions; return; case GL_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB: *params = fp->Base.NumNativeTexInstructions; return; case GL_PROGRAM_TEX_INDIRECTIONS_ARB: *params = fp->Base.NumTexIndirections; return; case GL_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB: *params = fp->Base.NumNativeTexIndirections; return; case GL_MAX_PROGRAM_ALU_INSTRUCTIONS_ARB: *params = limits->MaxAluInstructions; return; case GL_MAX_PROGRAM_NATIVE_ALU_INSTRUCTIONS_ARB: *params = limits->MaxNativeAluInstructions; return; case GL_MAX_PROGRAM_TEX_INSTRUCTIONS_ARB: *params = limits->MaxTexInstructions; return; case GL_MAX_PROGRAM_NATIVE_TEX_INSTRUCTIONS_ARB: *params = limits->MaxNativeTexInstructions; return; case GL_MAX_PROGRAM_TEX_INDIRECTIONS_ARB: *params = limits->MaxTexIndirections; return; case GL_MAX_PROGRAM_NATIVE_TEX_INDIRECTIONS_ARB: *params = limits->MaxNativeTexIndirections; return; default: _mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramivARB(pname)"); return; } } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramivARB(pname)"); return; } } void GLAPIENTRY _mesa_GetProgramStringARB(GLenum target, GLenum pname, GLvoid *string) { const struct gl_program *prog; char *dst = (char *) string; GET_CURRENT_CONTEXT(ctx); if (target == GL_VERTEX_PROGRAM_ARB) { prog = &(ctx->VertexProgram.Current->Base); } else if (target == GL_FRAGMENT_PROGRAM_ARB) { prog = &(ctx->FragmentProgram.Current->Base); } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramStringARB(target)"); return; } assert(prog); if (pname != GL_PROGRAM_STRING_ARB) { _mesa_error(ctx, GL_INVALID_ENUM, "glGetProgramStringARB(pname)"); return; } if (prog->String) memcpy(dst, prog->String, strlen((char *) prog->String)); else *dst = '\0'; }