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/*
* Copyright 2009 Nicolai Hähnle <nhaehnle@gmail.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 "radeon_compiler.h"
#include <stdio.h>
#include "radeon_dataflow.h"
#include "radeon_emulate_branches.h"
#include "radeon_emulate_loops.h"
#include "radeon_program_alu.h"
#include "radeon_program_tex.h"
#include "radeon_rename_regs.h"
#include "r300_fragprog.h"
#include "r300_fragprog_swizzle.h"
#include "r500_fragprog.h"
static void dataflow_outputs_mark_use(void * userdata, void * data,
void (*callback)(void *, unsigned int, unsigned int))
{
struct r300_fragment_program_compiler * c = userdata;
callback(data, c->OutputColor[0], RC_MASK_XYZW);
callback(data, c->OutputColor[1], RC_MASK_XYZW);
callback(data, c->OutputColor[2], RC_MASK_XYZW);
callback(data, c->OutputColor[3], RC_MASK_XYZW);
callback(data, c->OutputDepth, RC_MASK_W);
}
static void rewrite_depth_out(struct r300_fragment_program_compiler * c)
{
struct rc_instruction *rci;
for (rci = c->Base.Program.Instructions.Next; rci != &c->Base.Program.Instructions; rci = rci->Next) {
struct rc_sub_instruction * inst = &rci->U.I;
if (inst->DstReg.File != RC_FILE_OUTPUT || inst->DstReg.Index != c->OutputDepth)
continue;
if (inst->DstReg.WriteMask & RC_MASK_Z) {
inst->DstReg.WriteMask = RC_MASK_W;
} else {
inst->DstReg.WriteMask = 0;
continue;
}
switch (inst->Opcode) {
case RC_OPCODE_FRC:
case RC_OPCODE_MOV:
inst->SrcReg[0] = lmul_swizzle(RC_SWIZZLE_ZZZZ, inst->SrcReg[0]);
break;
case RC_OPCODE_ADD:
case RC_OPCODE_MAX:
case RC_OPCODE_MIN:
case RC_OPCODE_MUL:
inst->SrcReg[0] = lmul_swizzle(RC_SWIZZLE_ZZZZ, inst->SrcReg[0]);
inst->SrcReg[1] = lmul_swizzle(RC_SWIZZLE_ZZZZ, inst->SrcReg[1]);
break;
case RC_OPCODE_CMP:
case RC_OPCODE_MAD:
inst->SrcReg[0] = lmul_swizzle(RC_SWIZZLE_ZZZZ, inst->SrcReg[0]);
inst->SrcReg[1] = lmul_swizzle(RC_SWIZZLE_ZZZZ, inst->SrcReg[1]);
inst->SrcReg[2] = lmul_swizzle(RC_SWIZZLE_ZZZZ, inst->SrcReg[2]);
break;
default:
// Scalar instructions needn't be reswizzled
break;
}
}
}
static void debug_program_log(struct r300_fragment_program_compiler* c, const char * where)
{
if (c->Base.Debug) {
fprintf(stderr, "Fragment Program: %s\n", where);
rc_print_program(&c->Base.Program);
}
}
void r3xx_compile_fragment_program(struct r300_fragment_program_compiler* c)
{
struct emulate_loop_state loop_state;
rewrite_depth_out(c);
/* This transformation needs to be done before any of the IF
* instructions are modified. */
radeonTransformKILP(&c->Base);
debug_program_log(c, "before compilation");
if (c->Base.is_r500){
rc_unroll_loops(&c->Base, R500_PFS_MAX_INST);
debug_program_log(c, "after unroll loops");
}
else{
rc_transform_loops(&c->Base, &loop_state);
debug_program_log(c, "after transform loops");
rc_emulate_branches(&c->Base);
debug_program_log(c, "after emulate branches");
}
if (c->Base.is_r500) {
struct radeon_program_transformation transformations[] = {
{ &r500_transform_IF, 0 },
{ &radeonTransformALU, 0 },
{ &radeonTransformDeriv, 0 },
{ &radeonTransformTrigScale, 0 }
};
radeonLocalTransform(&c->Base, 4, transformations);
debug_program_log(c, "after native rewrite part 1");
c->Base.SwizzleCaps = &r500_swizzle_caps;
} else {
struct radeon_program_transformation transformations[] = {
{ &radeonTransformALU, 0 },
{ &radeonTransformTrigSimple, 0 }
};
radeonLocalTransform(&c->Base, 2, transformations);
debug_program_log(c, "after native rewrite part 1");
c->Base.SwizzleCaps = &r300_swizzle_caps;
}
/* Run the common transformations too.
* Remember, lowering comes last! */
struct radeon_program_transformation common_transformations[] = {
{ &radeonTransformTEX, c },
};
radeonLocalTransform(&c->Base, 1, common_transformations);
common_transformations[0].function = &radeonTransformALU;
radeonLocalTransform(&c->Base, 1, common_transformations);
if (c->Base.Error)
return;
debug_program_log(c, "after native rewrite part 2");
rc_dataflow_deadcode(&c->Base, &dataflow_outputs_mark_use, c);
if (c->Base.Error)
return;
debug_program_log(c, "after deadcode");
if(!c->Base.is_r500){
rc_emulate_loops(&loop_state, R300_PFS_MAX_ALU_INST);
debug_program_log(c, "after emulate loops");
}
rc_optimize(&c->Base);
debug_program_log(c, "after dataflow optimize");
rc_dataflow_swizzles(&c->Base);
if (c->Base.Error)
return;
debug_program_log(c, "after dataflow passes");
if(!c->Base.is_r500) {
/* This pass makes it easier for the scheduler to group TEX
* instructions and reduces the chances of creating too
* many texture indirections.*/
rc_rename_regs(&c->Base);
if (c->Base.Error)
return;
debug_program_log(c, "after register rename");
}
rc_pair_translate(c);
if (c->Base.Error)
return;
debug_program_log(c, "after pair translate");
rc_pair_schedule(c);
if (c->Base.Error)
return;
debug_program_log(c, "after pair scheduling");
rc_pair_regalloc(c, c->Base.max_temp_regs);
if (c->Base.Error)
return;
debug_program_log(c, "after register allocation");
if (c->Base.is_r500) {
r500BuildFragmentProgramHwCode(c);
} else {
r300BuildFragmentProgramHwCode(c);
}
rc_constants_copy(&c->code->constants, &c->Base.Program.Constants);
if (c->Base.Debug) {
if (c->Base.is_r500) {
r500FragmentProgramDump(c->code);
} else {
r300FragmentProgramDump(c->code);
}
}
}
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