blob: f8d04b6e3fc33de1893a00a53cd65bae98c5947d (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
// Copyright 2021 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "common/alignment.h"
#include "common/settings.h"
#include "shader_recompiler/environment.h"
#include "shader_recompiler/frontend/ir/ir_emitter.h"
#include "shader_recompiler/frontend/ir/modifiers.h"
#include "shader_recompiler/frontend/ir/program.h"
#include "shader_recompiler/frontend/ir/value.h"
#include "shader_recompiler/ir_opt/passes.h"
#include "shader_recompiler/shader_info.h"
namespace Shader::Optimization {
namespace {
void PatchFragCoord(IR::Block& block, IR::Inst& inst) {
IR::IREmitter ir{block, IR::Block::InstructionList::s_iterator_to(inst)};
const IR::F32 down_factor{ir.ResolutionDownFactor()};
const IR::F32 frag_coord{ir.GetAttribute(inst.Arg(0).Attribute())};
const IR::F32 downscaled_frag_coord{ir.FPMul(frag_coord, down_factor)};
inst.ReplaceUsesWith(downscaled_frag_coord);
}
void Visit(const IR::Program& program, IR::Block& block, IR::Inst& inst) {
const bool is_fragment_shader{program.stage == Stage::Fragment};
switch (inst.GetOpcode()) {
case IR::Opcode::GetAttribute: {
const IR::Attribute attr{inst.Arg(0).Attribute()};
switch (attr) {
case IR::Attribute::PositionX:
case IR::Attribute::PositionY:
if (is_fragment_shader) {
PatchFragCoord(block, inst);
}
break;
default:
break;
}
break;
}
case IR::Opcode::ImageQueryDimensions:
break;
case IR::Opcode::ImageFetch:
break;
case IR::Opcode::ImageRead:
break;
case IR::Opcode::ImageWrite:
break;
default:
break;
}
}
} // Anonymous namespace
void RescalingPass(IR::Program& program) {
for (IR::Block* const block : program.post_order_blocks) {
for (IR::Inst& inst : block->Instructions()) {
Visit(program, *block, inst);
}
}
}
} // namespace Shader::Optimization
|
