diff options
Diffstat (limited to 'src/gallium/drivers/r300/r3xx_fs.c')
| -rw-r--r-- | src/gallium/drivers/r300/r3xx_fs.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r3xx_fs.c b/src/gallium/drivers/r300/r3xx_fs.c new file mode 100644 index 0000000000..6e05d76977 --- /dev/null +++ b/src/gallium/drivers/r300/r3xx_fs.c @@ -0,0 +1,96 @@ +/* + * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com> + * Joakim Sindholt <opensource@zhasha.com> + * + * 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 "r3xx_fs.h" + +static INLINE uint32_t r3xx_rgb_op(unsigned op) +{ + switch (op) { + case TGSI_OPCODE_MOV: + return R300_ALU_OUTC_CMP; + default: + return 0; + } +} + +static INLINE uint32_t r3xx_alpha_op(unsigned op) +{ + switch (op) { + case TGSI_OPCODE_MOV: + return R300_ALU_OUTA_CMP; + default: + return 0; + } +} + +static INLINE void r3xx_emit_maths(struct r3xx_fragment_shader* fs, + struct r300_fs_asm* assembler, + struct tgsi_full_src_register* src, + struct tgsi_full_dst_register* dst, + unsigned op, + unsigned count) +{ + int i = fs->alu_instruction_count; + + fs->instructions[i].alu_rgb_inst = R300_RGB_SWIZA(R300_ALU_ARGC_SRC0C_XYZ) | + R300_RGB_SWIZB(R300_ALU_ARGC_SRC0C_XYZ) | + R300_RGB_SWIZC(R300_ALU_ARGC_ZERO) | + r3xx_rgb_op(op); + fs->instructions[i].alu_rgb_addr = R300_RGB_ADDR0(0) | R300_RGB_ADDR1(0) | + R300_RGB_ADDR2(0) | R300_ALU_DSTC_OUTPUT_XYZ; + fs->instructions[i].alu_alpha_inst = R300_ALPHA_SWIZA(R300_ALU_ARGA_SRC0A) | + R300_ALPHA_SWIZB(R300_ALU_ARGA_SRC0A) | + R300_ALPHA_SWIZC(R300_ALU_ARGA_ZERO) | + r3xx_alpha_op(op); + fs->instructions[i].alu_alpha_addr = R300_ALPHA_ADDR0(0) | + R300_ALPHA_ADDR1(0) | R300_ALPHA_ADDR2(0) | R300_ALU_DSTA_OUTPUT; + + fs->alu_instruction_count++; +} + +void r3xx_fs_finalize(struct r300_fragment_shader* fs, + struct r300_fs_asm* assembler) +{ + fs->stack_size = assembler->temp_count + assembler->temp_offset + 1; +} + +void r3xx_fs_instruction(struct r3xx_fragment_shader* fs, + struct r300_fs_asm* assembler, + struct tgsi_full_instruction* inst) +{ + switch (inst->Instruction.Opcode) { + case TGSI_OPCODE_MOV: + /* src0 -> src1 and src2 forced to zero */ + inst->FullSrcRegisters[1] = inst->FullSrcRegisters[0]; + inst->FullSrcRegisters[2] = r300_constant_zero; + r3xx_emit_maths(fs, assembler, inst->FullSrcRegisters, + &inst->FullDstRegisters[0], inst->Instruction.Opcode, 3); + break; + case TGSI_OPCODE_END: + break; + default: + debug_printf("r300: fs: Bad opcode %d\n", + inst->Instruction.Opcode); + break; + } +} |