X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fglsl%2Fmain.cpp;h=64c2496eba8802ab7868f178de3e35e3114a39f8;hb=a8ed00d5f13d7b016bc2ea56f130adc3fa857cc8;hp=08a44c96e5749e5398663705c707de68312ae358;hpb=41ed47d6b8fb6c032e2907ef2e49e414c26f35c1;p=mesa.git diff --git a/src/glsl/main.cpp b/src/glsl/main.cpp index 08a44c96e57..64c2496eba8 100644 --- a/src/glsl/main.cpp +++ b/src/glsl/main.cpp @@ -20,141 +20,89 @@ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ -#include -#include #include -#include -#include -#include -#include +/** @file main.cpp + * + * This file is the main() routine and scaffolding for producing + * builtin_compiler (which doesn't include builtins itself and is used + * to generate the profile information for builtin_function.cpp), and + * for glsl_compiler (which does include builtins and can be used to + * offline compile GLSL code and examine the resulting GLSL IR. + */ #include "ast.h" #include "glsl_parser_extras.h" -#include "glsl_parser.h" #include "ir_optimization.h" #include "ir_print_visitor.h" #include "program.h" #include "loop_analysis.h" - -extern "C" struct gl_shader * -_mesa_new_shader(struct gl_context *ctx, GLuint name, GLenum type); - -extern "C" void -_mesa_reference_shader(struct gl_context *ctx, struct gl_shader **ptr, - struct gl_shader *sh); - -/* Copied from shader_api.c for the stand-alone compiler. - */ -void -_mesa_reference_shader(struct gl_context *ctx, struct gl_shader **ptr, - struct gl_shader *sh) -{ - *ptr = sh; -} - -struct gl_shader * -_mesa_new_shader(struct gl_context *ctx, GLuint name, GLenum type) -{ - struct gl_shader *shader; - - (void) ctx; - - assert(type == GL_FRAGMENT_SHADER || type == GL_VERTEX_SHADER); - shader = talloc_zero(NULL, struct gl_shader); - if (shader) { - shader->Type = type; - shader->Name = name; - shader->RefCount = 1; - } - return shader; -} +#include "standalone_scaffolding.h" static void initialize_context(struct gl_context *ctx, gl_api api) { - memset(ctx, 0, sizeof(*ctx)); + initialize_context_to_defaults(ctx, api); - ctx->API = api; - - ctx->Extensions.ARB_draw_buffers = GL_TRUE; - ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE; - ctx->Extensions.EXT_texture_array = GL_TRUE; - ctx->Extensions.NV_texture_rectangle = GL_TRUE; + /* The standalone compiler needs to claim support for almost + * everything in order to compile the built-in functions. + */ + ctx->Const.GLSLVersion = 140; - /* 1.10 minimums. */ - ctx->Const.MaxLights = 8; ctx->Const.MaxClipPlanes = 8; - ctx->Const.MaxTextureUnits = 2; + ctx->Const.MaxDrawBuffers = 2; /* More than the 1.10 minimum to appease parser tests taken from * apps that (hopefully) already checked the number of coords. */ ctx->Const.MaxTextureCoordUnits = 4; - ctx->Const.VertexProgram.MaxAttribs = 16; - ctx->Const.VertexProgram.MaxUniformComponents = 512; - ctx->Const.MaxVarying = 8; - ctx->Const.MaxVertexTextureImageUnits = 0; - ctx->Const.MaxCombinedTextureImageUnits = 2; - ctx->Const.MaxTextureImageUnits = 2; - ctx->Const.FragmentProgram.MaxUniformComponents = 64; - - ctx->Const.MaxDrawBuffers = 2; - ctx->Driver.NewShader = _mesa_new_shader; } -/* Returned string will have 'ctx' as its talloc owner. */ +/* Returned string will have 'ctx' as its ralloc owner. */ static char * load_text_file(void *ctx, const char *file_name) { char *text = NULL; - struct stat st; - ssize_t total_read = 0; - int fd = open(file_name, O_RDONLY); + size_t size; + size_t total_read = 0; + FILE *fp = fopen(file_name, "rb"); - if (fd < 0) { + if (!fp) { return NULL; } - if (fstat(fd, & st) == 0) { - text = (char *) talloc_size(ctx, st.st_size + 1); - if (text != NULL) { - do { - ssize_t bytes = read(fd, text + total_read, - st.st_size - total_read); - if (bytes < 0) { - free(text); - text = NULL; - break; - } - - if (bytes == 0) { - break; - } - - total_read += bytes; - } while (total_read < st.st_size); - - text[total_read] = '\0'; - } + fseek(fp, 0L, SEEK_END); + size = ftell(fp); + fseek(fp, 0L, SEEK_SET); + + text = (char *) ralloc_size(ctx, size + 1); + if (text != NULL) { + do { + size_t bytes = fread(text + total_read, + 1, size - total_read, fp); + if (bytes < size - total_read) { + free(text); + text = NULL; + break; + } + + if (bytes == 0) { + break; + } + + total_read += bytes; + } while (total_read < size); + + text[total_read] = '\0'; } - close(fd); + fclose(fp); return text; } - -void -usage_fail(const char *name) -{ - printf("%s \n", name); - exit(EXIT_FAILURE); -} - - int glsl_es = 0; int dump_ast = 0; int dump_hir = 0; @@ -170,6 +118,25 @@ const struct option compiler_opts[] = { { NULL, 0, NULL, 0 } }; +/** + * \brief Print proper usage and exit with failure. + */ +void +usage_fail(const char *name) +{ + + const char *header = + "usage: %s [options] \n" + "\n" + "Possible options are:\n"; + printf(header, name, name); + for (const struct option *o = compiler_opts; o->name != 0; ++o) { + printf(" --%s\n", o->name); + } + exit(EXIT_FAILURE); +} + + void compile_shader(struct gl_context *ctx, struct gl_shader *shader) { @@ -178,7 +145,7 @@ compile_shader(struct gl_context *ctx, struct gl_shader *shader) const char *source = shader->Source; state->error = preprocess(state, &source, &state->info_log, - state->extensions, ctx->API); + state->extensions, ctx->API) != 0; if (!state->error) { _mesa_glsl_lexer_ctor(state, source); @@ -208,26 +175,7 @@ compile_shader(struct gl_context *ctx, struct gl_shader *shader) if (!state->error && !shader->ir->is_empty()) { bool progress; do { - progress = false; - - progress = do_function_inlining(shader->ir) || progress; - progress = do_if_simplification(shader->ir) || progress; - progress = do_copy_propagation(shader->ir) || progress; - progress = do_dead_code_local(shader->ir) || progress; - progress = do_dead_code_unlinked(shader->ir) || progress; - progress = do_tree_grafting(shader->ir) || progress; - progress = do_constant_propagation(shader->ir) || progress; - progress = do_constant_variable_unlinked(shader->ir) || progress; - progress = do_constant_folding(shader->ir) || progress; - progress = do_algebraic(shader->ir) || progress; - progress = do_vec_index_to_swizzle(shader->ir) || progress; - progress = do_vec_index_to_cond_assign(shader->ir) || progress; - progress = do_swizzle_swizzle(shader->ir) || progress; - - loop_state *ls = analyze_loop_variables(shader->ir); - progress = set_loop_controls(shader->ir, ls) || progress; - progress = unroll_loops(shader->ir, ls, 32) || progress; - delete ls; + progress = do_common_optimization(shader->ir, false, false, 32); } while (progress); validate_ir_tree(shader->ir); @@ -247,14 +195,14 @@ compile_shader(struct gl_context *ctx, struct gl_shader *shader) shader->num_builtins_to_link = state->num_builtins_to_link; if (shader->InfoLog) - talloc_free(shader->InfoLog); + ralloc_free(shader->InfoLog); shader->InfoLog = state->info_log; /* Retain any live IR, but trash the rest. */ reparent_ir(shader->ir, shader); - talloc_free(state); + ralloc_free(state); return; } @@ -279,16 +227,17 @@ main(int argc, char **argv) struct gl_shader_program *whole_program; - whole_program = talloc_zero (NULL, struct gl_shader_program); + whole_program = rzalloc (NULL, struct gl_shader_program); assert(whole_program != NULL); + whole_program->InfoLog = ralloc_strdup(whole_program, ""); for (/* empty */; argc > optind; optind++) { - whole_program->Shaders = (struct gl_shader **) - talloc_realloc(whole_program, whole_program->Shaders, - struct gl_shader *, whole_program->NumShaders + 1); + whole_program->Shaders = + reralloc(whole_program, whole_program->Shaders, + struct gl_shader *, whole_program->NumShaders + 1); assert(whole_program->Shaders != NULL); - struct gl_shader *shader = talloc_zero(whole_program, gl_shader); + struct gl_shader *shader = rzalloc(whole_program, gl_shader); whole_program->Shaders[whole_program->NumShaders] = shader; whole_program->NumShaders++; @@ -298,7 +247,7 @@ main(int argc, char **argv) usage_fail(argv[0]); const char *const ext = & argv[optind][len - 5]; - if (strncmp(".vert", ext, 5) == 0) + if (strncmp(".vert", ext, 5) == 0 || strncmp(".glsl", ext, 5) == 0) shader->Type = GL_VERTEX_SHADER; else if (strncmp(".geom", ext, 5) == 0) shader->Type = GL_GEOMETRY_SHADER; @@ -331,9 +280,9 @@ main(int argc, char **argv) } for (unsigned i = 0; i < MESA_SHADER_TYPES; i++) - talloc_free(whole_program->_LinkedShaders[i]); + ralloc_free(whole_program->_LinkedShaders[i]); - talloc_free(whole_program); + ralloc_free(whole_program); _mesa_glsl_release_types(); _mesa_glsl_release_functions();