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* Copyright 2009 Nicolai Hähnle <nhaehnle@gmail.com>
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* on the rights to use, copy, modify, merge, publish, distribute, sub
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* license, and/or sell copies of the Software, and to permit persons to whom
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* the Software is furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE. */
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#include "radeon_compiler.h"
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#include "radeon_compiler_util.h"
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#include "radeon_dataflow.h"
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#include "radeon_emulate_branches.h"
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#include "radeon_emulate_loops.h"
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#include "radeon_program_alu.h"
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#include "radeon_program_tex.h"
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#include "radeon_rename_regs.h"
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#include "radeon_remove_constants.h"
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#include "r300_fragprog.h"
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#include "r300_fragprog_swizzle.h"
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#include "r500_fragprog.h"
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static void dataflow_outputs_mark_use(void * userdata, void * data,
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void (*callback)(void *, unsigned int, unsigned int))
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struct r300_fragment_program_compiler * c = userdata;
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callback(data, c->OutputColor[0], RC_MASK_XYZW);
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callback(data, c->OutputColor[1], RC_MASK_XYZW);
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callback(data, c->OutputColor[2], RC_MASK_XYZW);
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callback(data, c->OutputColor[3], RC_MASK_XYZW);
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callback(data, c->OutputDepth, RC_MASK_W);
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static void rc_rewrite_depth_out(struct radeon_compiler *cc, void *user)
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struct r300_fragment_program_compiler *c = (struct r300_fragment_program_compiler*)cc;
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struct rc_instruction *rci;
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for (rci = c->Base.Program.Instructions.Next; rci != &c->Base.Program.Instructions; rci = rci->Next) {
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struct rc_sub_instruction * inst = &rci->U.I;
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const struct rc_opcode_info *info = rc_get_opcode_info(inst->Opcode);
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if (inst->DstReg.File != RC_FILE_OUTPUT || inst->DstReg.Index != c->OutputDepth)
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if (inst->DstReg.WriteMask & RC_MASK_Z) {
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inst->DstReg.WriteMask = RC_MASK_W;
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inst->DstReg.WriteMask = 0;
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if (!info->IsComponentwise) {
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for (i = 0; i < info->NumSrcRegs; i++) {
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inst->SrcReg[i] = lmul_swizzle(RC_SWIZZLE_ZZZZ, inst->SrcReg[i]);
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static int radeon_saturate_output(
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struct radeon_compiler * c,
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struct rc_instruction * inst,
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const struct rc_opcode_info *info = rc_get_opcode_info(inst->U.I.Opcode);
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if (!info->HasDstReg || inst->U.I.DstReg.File != RC_FILE_OUTPUT)
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inst->U.I.SaturateMode = RC_SATURATE_ZERO_ONE;
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void r3xx_compile_fragment_program(struct r300_fragment_program_compiler* c)
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int is_r500 = c->Base.is_r500;
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int opt = !c->Base.disable_optimizations;
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int sat_out = c->state.frag_clamp;
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/* Lists of instruction transformations. */
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struct radeon_program_transformation saturate_output[] = {
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{ &radeon_saturate_output, c },
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struct radeon_program_transformation rewrite_tex[] = {
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{ &radeonTransformTEX, c },
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struct radeon_program_transformation rewrite_if[] = {
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{ &r500_transform_IF, 0 },
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struct radeon_program_transformation native_rewrite_r500[] = {
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{ &radeonTransformALU, 0 },
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{ &radeonTransformDeriv, 0 },
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{ &radeonTransformTrigScale, 0 },
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struct radeon_program_transformation native_rewrite_r300[] = {
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{ &radeonTransformALU, 0 },
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{ &r300_transform_trig_simple, 0 },
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/* List of compiler passes. */
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struct radeon_compiler_pass fs_list[] = {
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/* NAME DUMP PREDICATE FUNCTION PARAM */
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{"rewrite depth out", 1, 1, rc_rewrite_depth_out, NULL},
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/* This transformation needs to be done before any of the IF
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* instructions are modified. */
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{"transform KILP", 1, 1, rc_transform_KILP, NULL},
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{"unroll loops", 1, is_r500, rc_unroll_loops, NULL},
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{"transform loops", 1, !is_r500, rc_transform_loops, NULL},
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{"emulate branches", 1, !is_r500, rc_emulate_branches, NULL},
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{"saturate output writes", 1, sat_out, rc_local_transform, saturate_output},
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{"transform TEX", 1, 1, rc_local_transform, rewrite_tex},
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{"transform IF", 1, is_r500, rc_local_transform, rewrite_if},
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{"native rewrite", 1, is_r500, rc_local_transform, native_rewrite_r500},
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{"native rewrite", 1, !is_r500, rc_local_transform, native_rewrite_r300},
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{"deadcode", 1, opt, rc_dataflow_deadcode, dataflow_outputs_mark_use},
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{"emulate loops", 1, !is_r500, rc_emulate_loops, NULL},
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{"register rename", 1, !is_r500 || opt, rc_rename_regs, NULL},
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{"dataflow optimize", 1, opt, rc_optimize, NULL},
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{"dataflow swizzles", 1, 1, rc_dataflow_swizzles, NULL},
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{"dead constants", 1, 1, rc_remove_unused_constants, &c->code->constants_remap_table},
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{"pair translate", 1, 1, rc_pair_translate, NULL},
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{"pair scheduling", 1, 1, rc_pair_schedule, &opt},
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{"dead sources", 1, 1, rc_pair_remove_dead_sources, NULL},
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{"register allocation", 1, 1, rc_pair_regalloc, &opt},
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{"final code validation", 0, 1, rc_validate_final_shader, NULL},
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{"machine code generation", 0, is_r500, r500BuildFragmentProgramHwCode, NULL},
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{"machine code generation", 0, !is_r500, r300BuildFragmentProgramHwCode, NULL},
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{"dump machine code", 0, is_r500 && (c->Base.Debug & RC_DBG_LOG), r500FragmentProgramDump, NULL},
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{"dump machine code", 0, !is_r500 && (c->Base.Debug & RC_DBG_LOG), r300FragmentProgramDump, NULL},
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{NULL, 0, 0, NULL, NULL}
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c->Base.type = RC_FRAGMENT_PROGRAM;
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c->Base.SwizzleCaps = c->Base.is_r500 ? &r500_swizzle_caps : &r300_swizzle_caps;
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rc_run_compiler(&c->Base, fs_list);
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rc_constants_copy(&c->code->constants, &c->Base.Program.Constants);