diff options
Diffstat (limited to 'mesalib/src/glsl/glsl_parser_extras.cpp')
-rw-r--r-- | mesalib/src/glsl/glsl_parser_extras.cpp | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/mesalib/src/glsl/glsl_parser_extras.cpp b/mesalib/src/glsl/glsl_parser_extras.cpp index 98627145a..f4087df30 100644 --- a/mesalib/src/glsl/glsl_parser_extras.cpp +++ b/mesalib/src/glsl/glsl_parser_extras.cpp @@ -28,6 +28,7 @@ extern "C" { #include "main/core.h" /* for struct gl_context */ #include "main/context.h" +#include "main/shaderobj.h" } #include "ralloc.h" @@ -302,6 +303,41 @@ _mesa_glsl_parse_state::process_version_directive(YYLTYPE *locp, int version, } } +extern "C" { + +/** + * The most common use of _mesa_glsl_shader_target_name(), which is + * shared with C code in Mesa core to translate a GLenum to a short + * shader stage name in debug printouts. + * + * It recognizes the PROGRAM variants of the names so it can be used + * with a struct gl_program->Target, not just a struct + * gl_shader->Type. + */ +const char * +_mesa_glsl_shader_target_name(GLenum type) +{ + switch (type) { + case GL_VERTEX_SHADER: + case GL_VERTEX_PROGRAM_ARB: + return "vertex"; + case GL_FRAGMENT_SHADER: + case GL_FRAGMENT_PROGRAM_ARB: + return "fragment"; + case GL_GEOMETRY_SHADER: + return "geometry"; + default: + assert(!"Should not get here."); + return "unknown"; + } +} + +} /* extern "C" */ + +/** + * Overloaded C++ variant usable within the compiler for translating + * our internal enum into short stage names. + */ const char * _mesa_glsl_shader_target_name(enum _mesa_glsl_parser_targets target) { @@ -1202,6 +1238,88 @@ ast_struct_specifier::ast_struct_specifier(const char *identifier, this->declarations.push_degenerate_list_at_head(&declarator_list->link); } +extern "C" { + +void +_mesa_glsl_compile_shader(struct gl_context *ctx, struct gl_shader *shader, + bool dump_ast, bool dump_hir) +{ + struct _mesa_glsl_parse_state *state = + new(shader) _mesa_glsl_parse_state(ctx, shader->Type, shader); + const char *source = shader->Source; + + state->error = glcpp_preprocess(state, &source, &state->info_log, + &ctx->Extensions, ctx); + + if (!state->error) { + _mesa_glsl_lexer_ctor(state, source); + _mesa_glsl_parse(state); + _mesa_glsl_lexer_dtor(state); + } + + if (dump_ast) { + foreach_list_const(n, &state->translation_unit) { + ast_node *ast = exec_node_data(ast_node, n, link); + ast->print(); + } + printf("\n\n"); + } + + ralloc_free(shader->ir); + shader->ir = new(shader) exec_list; + if (!state->error && !state->translation_unit.is_empty()) + _mesa_ast_to_hir(shader->ir, state); + + if (!state->error) { + validate_ir_tree(shader->ir); + + /* Print out the unoptimized IR. */ + if (dump_hir) { + _mesa_print_ir(shader->ir, state); + } + } + + + if (!state->error && !shader->ir->is_empty()) { + struct gl_shader_compiler_options *options = + &ctx->ShaderCompilerOptions[_mesa_shader_type_to_index(shader->Type)]; + + /* Do some optimization at compile time to reduce shader IR size + * and reduce later work if the same shader is linked multiple times + */ + while (do_common_optimization(shader->ir, false, false, 32, options)) + ; + + validate_ir_tree(shader->ir); + } + + if (shader->InfoLog) + ralloc_free(shader->InfoLog); + + shader->symbols = state->symbols; + shader->CompileStatus = !state->error; + shader->InfoLog = state->info_log; + shader->Version = state->language_version; + shader->InfoLog = state->info_log; + shader->IsES = state->es_shader; + + memcpy(shader->builtins_to_link, state->builtins_to_link, + sizeof(shader->builtins_to_link[0]) * state->num_builtins_to_link); + shader->num_builtins_to_link = state->num_builtins_to_link; + + if (shader->UniformBlocks) + ralloc_free(shader->UniformBlocks); + shader->NumUniformBlocks = state->num_uniform_blocks; + shader->UniformBlocks = state->uniform_blocks; + ralloc_steal(shader, shader->UniformBlocks); + + /* Retain any live IR, but trash the rest. */ + reparent_ir(shader->ir, shader->ir); + + ralloc_free(state); +} + +} /* extern "C" */ /** * Do the set of common optimizations passes * |