diff options
Diffstat (limited to 'src/gallium/drivers/r300/r300_fs.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_fs.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_fs.c b/src/gallium/drivers/r300/r300_fs.c new file mode 100644 index 00000000000..4b304306d0f --- /dev/null +++ b/src/gallium/drivers/r300/r300_fs.c @@ -0,0 +1,109 @@ +/* + * Copyright 2008 Corbin Simpson <[email protected]> + * Joakim Sindholt <[email protected]> + * + * 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 + * on the rights to use, copy, modify, merge, publish, distribute, sub + * license, 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 (including the next + * paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL + * THE AUTHOR(S) AND/OR THEIR SUPPLIERS 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. */ + +#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]; + + 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; + } + + tgsi_parse_init(&parser, fs->state.tokens); + + while (!tgsi_parse_end_of_tokens(&parser)) { + tgsi_parse_token(&parser); + + /* 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); + 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.ImmediateFloat32[i] + .Float; + } + assembler->imm_count++; + 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); + } + 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); + } + + tgsi_dump(fs->state.tokens, 0); + /* XXX finish r300 dumper too */ + if (is_r500) { + r5xx_fs_dump((struct r5xx_fragment_shader*)fs); + } + + tgsi_parse_free(&parser); + FREE(assembler); +} |