diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_fs.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_fs.c | 162 |
1 files changed, 94 insertions, 68 deletions
diff --git a/src/gallium/drivers/r300/r300_fs.c b/src/gallium/drivers/r300/r300_fs.c index ca8ef999024..2cddb97038d 100644 --- a/src/gallium/drivers/r300/r300_fs.c +++ b/src/gallium/drivers/r300/r300_fs.c @@ -23,89 +23,115 @@ #include "r300_fs.h" -void r300_translate_fragment_shader(struct r300_context* r300, - struct r300_fragment_shader* fs) -{ - struct tgsi_parse_context parser; - int i; - boolean is_r500 = r300_screen(r300->context.screen)->caps->is_r500; - struct r300_constant_buffer* consts = - &r300->shader_constants[PIPE_SHADER_FRAGMENT]; +#include "r300_tgsi_to_rc.h" - struct r300_fs_asm* assembler = CALLOC_STRUCT(r300_fs_asm); - if (assembler == NULL) { - return; - } - /* Setup starting offset for immediates. */ - assembler->imm_offset = consts->user_count; - /* Enable depth writes, if needed. */ - assembler->writes_depth = fs->info.writes_z; - - /* Make sure we start at the beginning of the shader. */ - if (is_r500) { - ((struct r5xx_fragment_shader*)fs)->instruction_count = 0; - } +#include "radeon_compiler.h" - tgsi_parse_init(&parser, fs->state.tokens); +static void find_output_registers(struct r300_fragment_program_compiler * compiler, + struct r300_fragment_shader * fs) +{ + unsigned i; - while (!tgsi_parse_end_of_tokens(&parser)) { - tgsi_parse_token(&parser); + /* Mark the outputs as not present initially */ + compiler->OutputColor = fs->info.num_outputs; + compiler->OutputDepth = fs->info.num_outputs; - /* This is seriously the lamest way to create fragment programs ever. - * I blame TGSI. */ - switch (parser.FullToken.Token.Type) { - case TGSI_TOKEN_TYPE_DECLARATION: - /* Allocated registers sitting at the beginning - * of the program. */ - r300_fs_declare(assembler, &parser.FullToken.FullDeclaration); + /* Now see where they really are. */ + for(i = 0; i < fs->info.num_outputs; ++i) { + switch(fs->info.output_semantic_name[i]) { + case TGSI_SEMANTIC_COLOR: + compiler->OutputColor = i; + break; + case TGSI_SEMANTIC_POSITION: + compiler->OutputDepth = i; break; - case TGSI_TOKEN_TYPE_IMMEDIATE: - debug_printf("r300: Emitting immediate to constant buffer, " - "position %d\n", - assembler->imm_offset + assembler->imm_count); - /* I am not amused by the length of these. */ - for (i = 0; i < 4; i++) { - consts->constants[assembler->imm_offset + - assembler->imm_count][i] = - parser.FullToken.FullImmediate.u[i].Float; - } - assembler->imm_count++; + } + } +} + +static void allocate_hardware_inputs( + struct r300_fragment_program_compiler * c, + void (*allocate)(void * data, unsigned input, unsigned hwreg), + void * mydata) +{ + struct tgsi_shader_info* info = &((struct r300_fragment_shader*)c->UserData)->info; + int total_colors = 0; + int colors = 0; + int total_generic = 0; + int generic = 0; + int i; + + for (i = 0; i < info->num_inputs; i++) { + switch (info->input_semantic_name[i]) { + case TGSI_SEMANTIC_COLOR: + total_colors++; break; - case TGSI_TOKEN_TYPE_INSTRUCTION: - if (is_r500) { - r5xx_fs_instruction((struct r5xx_fragment_shader*)fs, - assembler, &parser.FullToken.FullInstruction); - } else { - r3xx_fs_instruction((struct r3xx_fragment_shader*)fs, - assembler, &parser.FullToken.FullInstruction); - } + case TGSI_SEMANTIC_FOG: + case TGSI_SEMANTIC_GENERIC: + total_generic++; break; } } - debug_printf("r300: fs: %d texs and %d colors, first free reg is %d\n", - assembler->tex_count, assembler->color_count, - assembler->tex_count + assembler->color_count); - - consts->count = consts->user_count + assembler->imm_count; - fs->uses_imms = assembler->imm_count; - debug_printf("r300: fs: %d total constants, " - "%d from user and %d from immediates\n", consts->count, - consts->user_count, assembler->imm_count); - r3xx_fs_finalize(fs, assembler); - if (is_r500) { - r5xx_fs_finalize((struct r5xx_fragment_shader*)fs, assembler); + for(i = 0; i < info->num_inputs; i++) { + switch (info->input_semantic_name[i]) { + case TGSI_SEMANTIC_COLOR: + allocate(mydata, i, colors); + colors++; + break; + case TGSI_SEMANTIC_FOG: + case TGSI_SEMANTIC_GENERIC: + allocate(mydata, i, total_colors + generic); + generic++; + break; + } } +} + +void r300_translate_fragment_shader(struct r300_context* r300, + struct r300_fragment_shader* fs) +{ + struct r300_fragment_program_compiler compiler; + struct tgsi_to_rc ttr; - tgsi_dump(fs->state.tokens, 0); - /* XXX finish r300 dumper too */ - if (is_r500) { - r5xx_fs_dump((struct r5xx_fragment_shader*)fs); + memset(&compiler, 0, sizeof(compiler)); + rc_init(&compiler.Base); + compiler.Base.Debug = 1; + + compiler.code = &fs->code; + compiler.is_r500 = r300_screen(r300->context.screen)->caps->is_r500; + compiler.AllocateHwInputs = &allocate_hardware_inputs; + compiler.UserData = fs; + + /* TODO: Program compilation depends on texture compare modes, + * which are sampler state. Therefore, programs need to be recompiled + * depending on this state as in the classic Mesa driver. + * + * This is not yet handled correctly. + */ + + find_output_registers(&compiler, fs); + + if (compiler.Base.Debug) { + debug_printf("r300: Initial vertex program\n"); + tgsi_dump(fs->state.tokens, 0); } - tgsi_parse_free(&parser); - FREE(assembler); + /* Translate TGSI to our internal representation */ + ttr.compiler = &compiler.Base; + ttr.info = &fs->info; + + r300_tgsi_to_rc(&ttr, fs->state.tokens); + + /* Invoke the compiler */ + r3xx_compile_fragment_program(&compiler); + if (compiler.Base.Error) { + /* Todo: Fail gracefully */ + fprintf(stderr, "r300 FP: Compiler error\n"); + abort(); + } /* And, finally... */ + rc_destroy(&compiler.Base); fs->translated = TRUE; } |