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/*
* 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;
}
}
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