From: Brian Paul Date: Thu, 24 Jul 2008 20:56:54 +0000 (-0600) Subject: mesa: glsl: only try to link shaders defining main() X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=3d500f00d2a09becccd62abc0472090c4faa53d6;p=mesa.git mesa: glsl: only try to link shaders defining main() --- diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h index 9339146e25c..6f17e46d0ee 100644 --- a/src/mesa/main/mtypes.h +++ b/src/mesa/main/mtypes.h @@ -2105,9 +2105,9 @@ struct gl_shader const GLchar *Source; /**< Source code string */ GLboolean CompileStatus; - GLuint NumPrograms; /**< size of Programs[] array */ - struct gl_program **Programs; /**< Post-compile assembly code */ + struct gl_program *Program; /**< Post-compile assembly code */ GLchar *InfoLog; + GLboolean Main; /**< shader defines main() */ }; diff --git a/src/mesa/shader/shader_api.c b/src/mesa/shader/shader_api.c index 5a15ec9dc03..a401803c3e9 100644 --- a/src/mesa/shader/shader_api.c +++ b/src/mesa/shader/shader_api.c @@ -262,15 +262,11 @@ _mesa_new_shader(GLcontext *ctx, GLuint name, GLenum type) void _mesa_free_shader(GLcontext *ctx, struct gl_shader *sh) { - GLuint i; if (sh->Source) _mesa_free((void *) sh->Source); if (sh->InfoLog) _mesa_free(sh->InfoLog); - for (i = 0; i < sh->NumPrograms; i++) - _mesa_reference_program(ctx, &sh->Programs[i], NULL); - if (sh->Programs) - _mesa_free(sh->Programs); + _mesa_reference_program(ctx, &sh->Program, NULL); _mesa_free(sh); } diff --git a/src/mesa/shader/slang/slang_compile.c b/src/mesa/shader/slang/slang_compile.c index a4e7b4a35b9..b43803b6dac 100644 --- a/src/mesa/shader/slang/slang_compile.c +++ b/src/mesa/shader/slang/slang_compile.c @@ -1930,7 +1930,7 @@ parse_invariant(slang_parse_ctx * C, slang_output_ctx * O) static GLboolean parse_code_unit(slang_parse_ctx * C, slang_code_unit * unit, - struct gl_program *program) + struct gl_shader *shader) { GET_CURRENT_CONTEXT(ctx); slang_output_ctx o; @@ -1954,7 +1954,7 @@ parse_code_unit(slang_parse_ctx * C, slang_code_unit * unit, o.structs = &unit->structs; o.vars = &unit->vars; o.global_pool = &unit->object->varpool; - o.program = program; + o.program = shader ? shader->Program : NULL; o.vartable = _slang_new_var_table(maxRegs); _slang_push_var_table(o.vartable); @@ -2007,6 +2007,7 @@ parse_code_unit(slang_parse_ctx * C, slang_code_unit * unit, _slang_codegen_function(&A, mainFunc); + shader->Main = GL_TRUE; /* this shader defines main() */ } _slang_pop_var_table(o.vartable); @@ -2020,7 +2021,7 @@ compile_binary(const byte * prod, slang_code_unit * unit, GLuint version, slang_unit_type type, slang_info_log * infolog, slang_code_unit * builtin, slang_code_unit * downlink, - struct gl_program *program) + struct gl_shader *shader) { slang_parse_ctx C; @@ -2045,14 +2046,14 @@ compile_binary(const byte * prod, slang_code_unit * unit, } /* parse translation unit */ - return parse_code_unit(&C, unit, program); + return parse_code_unit(&C, unit, shader); } static GLboolean compile_with_grammar(grammar id, const char *source, slang_code_unit * unit, slang_unit_type type, slang_info_log * infolog, slang_code_unit * builtin, - struct gl_program *program) + struct gl_shader *shader) { byte *prod; GLuint size, start, version; @@ -2114,7 +2115,7 @@ compile_with_grammar(grammar id, const char *source, slang_code_unit * unit, /* Syntax is okay - translate it to internal representation. */ if (!compile_binary(prod, unit, version, type, infolog, builtin, &builtin[SLANG_BUILTIN_TOTAL - 1], - program)) { + shader)) { grammar_alloc_free(prod); return GL_FALSE; } @@ -2153,7 +2154,7 @@ static const byte slang_vertex_builtin_gc[] = { static GLboolean compile_object(grammar * id, const char *source, slang_code_object * object, slang_unit_type type, slang_info_log * infolog, - struct gl_program *program) + struct gl_shader *shader) { slang_code_unit *builtins = NULL; GLuint base_version = 110; @@ -2252,7 +2253,7 @@ compile_object(grammar * id, const char *source, slang_code_object * object, /* compile the actual shader - pass-in built-in library for external shader */ return compile_with_grammar(*id, source, &object->unit, type, infolog, - builtins, program); + builtins, shader); } @@ -2261,7 +2262,6 @@ compile_shader(GLcontext *ctx, slang_code_object * object, slang_unit_type type, slang_info_log * infolog, struct gl_shader *shader) { - struct gl_program *program = shader->Programs[0]; GLboolean success; grammar id = 0; @@ -2271,12 +2271,12 @@ compile_shader(GLcontext *ctx, slang_code_object * object, _mesa_printf("************************************\n"); #endif - assert(program); + assert(shader->Program); _slang_code_object_dtr(object); _slang_code_object_ctr(object); - success = compile_object(&id, shader->Source, object, type, infolog, program); + success = compile_object(&id, shader->Source, object, type, infolog, shader); if (id != 0) grammar_destroy(id); if (!success) @@ -2308,21 +2308,18 @@ _slang_compile(GLcontext *ctx, struct gl_shader *shader) ctx->Shader.MemPool = _slang_new_mempool(1024*1024); - /* XXX temporary hack */ - if (!shader->Programs) { + shader->Main = GL_FALSE; + + if (!shader->Program) { GLenum progTarget; if (shader->Type == GL_VERTEX_SHADER) progTarget = GL_VERTEX_PROGRAM_ARB; else progTarget = GL_FRAGMENT_PROGRAM_ARB; - shader->Programs - = (struct gl_program **) malloc(sizeof(struct gl_program*)); - shader->Programs[0] = ctx->Driver.NewProgram(ctx, progTarget, 1); - shader->NumPrograms = 1; - - shader->Programs[0]->Parameters = _mesa_new_parameter_list(); - shader->Programs[0]->Varying = _mesa_new_parameter_list(); - shader->Programs[0]->Attributes = _mesa_new_parameter_list(); + shader->Program = ctx->Driver.NewProgram(ctx, progTarget, 1); + shader->Program->Parameters = _mesa_new_parameter_list(); + shader->Program->Varying = _mesa_new_parameter_list(); + shader->Program->Attributes = _mesa_new_parameter_list(); } slang_info_log_construct(&info_log); @@ -2355,13 +2352,13 @@ _slang_compile(GLcontext *ctx, struct gl_shader *shader) /* remove any reads of varying (output) registers */ #if 0 printf("Pre-remove output reads:\n"); - _mesa_print_program(shader->Programs[0]); + _mesa_print_program(shader->Programs); #endif - _mesa_remove_output_reads(shader->Programs[0], PROGRAM_VARYING); - _mesa_remove_output_reads(shader->Programs[0], PROGRAM_OUTPUT); + _mesa_remove_output_reads(shader->Program, PROGRAM_VARYING); + _mesa_remove_output_reads(shader->Program, PROGRAM_OUTPUT); #if 0 printf("Post-remove output reads:\n"); - _mesa_print_program(shader->Programs[0]); + _mesa_print_program(shader->Programs); #endif } diff --git a/src/mesa/shader/slang/slang_link.c b/src/mesa/shader/slang/slang_link.c index 8a66b78ec2e..26959d9d151 100644 --- a/src/mesa/shader/slang/slang_link.c +++ b/src/mesa/shader/slang/slang_link.c @@ -401,15 +401,16 @@ _slang_link(GLcontext *ctx, shProg->Varying = _mesa_new_parameter_list(); /** - * Find attached vertex shader, fragment shader + * Find attached vertex, fragment shaders defining main() */ vertProg = NULL; fragProg = NULL; for (i = 0; i < shProg->NumShaders; i++) { - if (shProg->Shaders[i]->Type == GL_VERTEX_SHADER) - vertProg = vertex_program(shProg->Shaders[i]->Programs[0]); - else if (shProg->Shaders[i]->Type == GL_FRAGMENT_SHADER) - fragProg = fragment_program(shProg->Shaders[i]->Programs[0]); + struct gl_shader *shader = shProg->Shaders[i]; + if (shader->Type == GL_VERTEX_SHADER && shader->Main) + vertProg = vertex_program(shader->Program); + else if (shader->Type == GL_FRAGMENT_SHADER && shader->Main) + fragProg = fragment_program(shader->Program); else _mesa_problem(ctx, "unexpected shader target in slang_link()"); }