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authorameerj <52414509+ameerj@users.noreply.github.com>2021-09-29 03:37:54 +0200
committerFernando Sahmkow <fsahmkow27@gmail.com>2021-11-16 22:11:30 +0100
commit99eec162da567ce08a7ab6ce4d1f4b5fa8b5af5e (patch)
tree791ff097b6f90cba269794a75f3d8ac2e2d8bc33 /src/shader_recompiler
parentrescaling_pass: Scale ImageFetch offset if it exists (diff)
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Diffstat (limited to 'src/shader_recompiler')
-rw-r--r--src/shader_recompiler/frontend/maxwell/translate_program.cpp1
-rw-r--r--src/shader_recompiler/ir_opt/rescaling_pass.cpp49
2 files changed, 17 insertions, 33 deletions
diff --git a/src/shader_recompiler/frontend/maxwell/translate_program.cpp b/src/shader_recompiler/frontend/maxwell/translate_program.cpp
index 743fb2420..267ebe4af 100644
--- a/src/shader_recompiler/frontend/maxwell/translate_program.cpp
+++ b/src/shader_recompiler/frontend/maxwell/translate_program.cpp
@@ -183,7 +183,6 @@ IR::Program TranslateProgram(ObjectPool<IR::Inst>& inst_pool, ObjectPool<IR::Blo
if (Settings::values.resolution_info.active) {
Optimization::RescalingPass(program);
}
-
Optimization::DeadCodeEliminationPass(program);
if (Settings::values.renderer_debug) {
Optimization::VerificationPass(program);
diff --git a/src/shader_recompiler/ir_opt/rescaling_pass.cpp b/src/shader_recompiler/ir_opt/rescaling_pass.cpp
index 2aa9c31dc..0d642dd0d 100644
--- a/src/shader_recompiler/ir_opt/rescaling_pass.cpp
+++ b/src/shader_recompiler/ir_opt/rescaling_pass.cpp
@@ -14,11 +14,7 @@
namespace Shader::Optimization {
namespace {
-void VisitMark(const IR::Program& program, const IR::Inst& inst) {
- const bool is_fragment_shader{program.stage == Stage::Fragment};
- if (!is_fragment_shader) {
- return;
- }
+void VisitMark(const IR::Inst& inst) {
switch (inst.GetOpcode()) {
case IR::Opcode::ShuffleIndex:
case IR::Opcode::ShuffleUp:
@@ -54,6 +50,7 @@ void VisitMark(const IR::Program& program, const IR::Inst& inst) {
break;
}
}
+
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()};
@@ -64,50 +61,35 @@ void PatchFragCoord(IR::Block& block, IR::Inst& inst) {
[[nodiscard]] IR::U32 Scale(IR::IREmitter& ir, const IR::U1& is_scaled, const IR::U32& value) {
IR::U32 scaled_value{value};
- bool changed{};
if (const u32 up_scale = Settings::values.resolution_info.up_scale; up_scale != 1) {
scaled_value = ir.IMul(scaled_value, ir.Imm32(up_scale));
- changed = true;
}
if (const u32 down_shift = Settings::values.resolution_info.down_shift; down_shift != 0) {
scaled_value = ir.ShiftRightArithmetic(scaled_value, ir.Imm32(down_shift));
- changed = true;
- }
- if (changed) {
- return IR::U32{ir.Select(is_scaled, scaled_value, value)};
- } else {
- return value;
}
+ return IR::U32{ir.Select(is_scaled, scaled_value, value)};
}
[[nodiscard]] IR::U32 SubScale(IR::IREmitter& ir, const IR::U1& is_scaled, const IR::U32& value,
const IR::Attribute attrib) {
- const IR::F32 opt1{ir.Imm32(Settings::values.resolution_info.up_factor)};
- const IR::F32 base{ir.FPMul(ir.ConvertUToF(32, 32, value), opt1)};
+ const IR::F32 up_factor{ir.Imm32(Settings::values.resolution_info.up_factor)};
+ const IR::F32 base{ir.FPMul(ir.ConvertUToF(32, 32, value), up_factor)};
const IR::F32 frag_coord{ir.GetAttribute(attrib)};
- const IR::F32 opt2{ir.Imm32(Settings::values.resolution_info.down_factor)};
- const IR::F32 floor{ir.FPMul(opt1, ir.FPFloor(ir.FPMul(frag_coord, opt2)))};
- const IR::U32 deviation{
- ir.ConvertFToU(32, ir.FPAdd(base, ir.FPAdd(frag_coord, ir.FPNeg(floor))))};
- return IR::U32{ir.Select(is_scaled, deviation, value)};
+ const IR::F32 down_factor{ir.Imm32(Settings::values.resolution_info.down_factor)};
+ const IR::F32 floor{ir.FPMul(up_factor, ir.FPFloor(ir.FPMul(frag_coord, down_factor)))};
+ const IR::F16F32F64 deviation{ir.FPAdd(base, ir.FPAdd(frag_coord, ir.FPNeg(floor)))};
+ return IR::U32{ir.Select(is_scaled, ir.ConvertFToU(32, deviation), value)};
}
-[[nodiscard]] IR::U32 DownScale(IR::IREmitter& ir, const IR::U1& is_scaled, IR::U32 value) {
+[[nodiscard]] IR::U32 DownScale(IR::IREmitter& ir, const IR::U1& is_scaled, const IR::U32& value) {
IR::U32 scaled_value{value};
- bool changed{};
if (const u32 down_shift = Settings::values.resolution_info.down_shift; down_shift != 0) {
scaled_value = ir.ShiftLeftLogical(scaled_value, ir.Imm32(down_shift));
- changed = true;
}
if (const u32 up_scale = Settings::values.resolution_info.up_scale; up_scale != 1) {
scaled_value = ir.IDiv(scaled_value, ir.Imm32(up_scale));
- changed = true;
- }
- if (changed) {
- return IR::U32{ir.Select(is_scaled, scaled_value, value)};
- } else {
- return value;
}
+ return IR::U32{ir.Select(is_scaled, scaled_value, value)};
}
void PatchImageQueryDimensions(IR::Block& block, IR::Inst& inst) {
@@ -267,9 +249,12 @@ void Visit(const IR::Program& program, IR::Block& block, IR::Inst& inst) {
} // Anonymous namespace
void RescalingPass(IR::Program& program) {
- for (IR::Block* const block : program.post_order_blocks) {
- for (IR::Inst& inst : block->Instructions()) {
- VisitMark(program, inst);
+ const bool is_fragment_shader{program.stage == Stage::Fragment};
+ if (is_fragment_shader) {
+ for (IR::Block* const block : program.post_order_blocks) {
+ for (IR::Inst& inst : block->Instructions()) {
+ VisitMark(inst);
+ }
}
}
for (IR::Block* const block : program.post_order_blocks) {