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-rw-r--r--src/shader_recompiler/ir_opt/texture_pass.cpp126
1 files changed, 113 insertions, 13 deletions
diff --git a/src/shader_recompiler/ir_opt/texture_pass.cpp b/src/shader_recompiler/ir_opt/texture_pass.cpp
index 96c997a58..e8be58357 100644
--- a/src/shader_recompiler/ir_opt/texture_pass.cpp
+++ b/src/shader_recompiler/ir_opt/texture_pass.cpp
@@ -1,6 +1,5 @@
-// Copyright 2021 yuzu Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
#include <algorithm>
#include <bit>
@@ -20,8 +19,10 @@ namespace {
struct ConstBufferAddr {
u32 index;
u32 offset;
+ u32 shift_left;
u32 secondary_index;
u32 secondary_offset;
+ u32 secondary_shift_left;
IR::U32 dynamic_offset;
u32 count;
bool has_secondary;
@@ -173,19 +174,41 @@ bool IsTextureInstruction(const IR::Inst& inst) {
return IndexedInstruction(inst) != IR::Opcode::Void;
}
-std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst);
+std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst, Environment& env);
-std::optional<ConstBufferAddr> Track(const IR::Value& value) {
- return IR::BreadthFirstSearch(value, TryGetConstBuffer);
+std::optional<ConstBufferAddr> Track(const IR::Value& value, Environment& env) {
+ return IR::BreadthFirstSearch(
+ value, [&env](const IR::Inst* inst) { return TryGetConstBuffer(inst, env); });
}
-std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst) {
+std::optional<u32> TryGetConstant(IR::Value& value, Environment& env) {
+ const IR::Inst* inst = value.InstRecursive();
+ if (inst->GetOpcode() != IR::Opcode::GetCbufU32) {
+ return std::nullopt;
+ }
+ const IR::Value index{inst->Arg(0)};
+ const IR::Value offset{inst->Arg(1)};
+ if (!index.IsImmediate()) {
+ return std::nullopt;
+ }
+ if (!offset.IsImmediate()) {
+ return std::nullopt;
+ }
+ const auto index_number = index.U32();
+ if (index_number != 1) {
+ return std::nullopt;
+ }
+ const auto offset_number = offset.U32();
+ return env.ReadCbufValue(index_number, offset_number);
+}
+
+std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst, Environment& env) {
switch (inst->GetOpcode()) {
default:
return std::nullopt;
case IR::Opcode::BitwiseOr32: {
- std::optional lhs{Track(inst->Arg(0))};
- std::optional rhs{Track(inst->Arg(1))};
+ std::optional lhs{Track(inst->Arg(0), env)};
+ std::optional rhs{Track(inst->Arg(1), env)};
if (!lhs || !rhs) {
return std::nullopt;
}
@@ -195,19 +218,62 @@ std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst) {
if (lhs->count > 1 || rhs->count > 1) {
return std::nullopt;
}
- if (lhs->index > rhs->index || lhs->offset > rhs->offset) {
+ if (lhs->shift_left > 0 || lhs->index > rhs->index || lhs->offset > rhs->offset) {
std::swap(lhs, rhs);
}
return ConstBufferAddr{
.index = lhs->index,
.offset = lhs->offset,
+ .shift_left = lhs->shift_left,
.secondary_index = rhs->index,
.secondary_offset = rhs->offset,
+ .secondary_shift_left = rhs->shift_left,
.dynamic_offset = {},
.count = 1,
.has_secondary = true,
};
}
+ case IR::Opcode::ShiftLeftLogical32: {
+ const IR::Value shift{inst->Arg(1)};
+ if (!shift.IsImmediate()) {
+ return std::nullopt;
+ }
+ std::optional lhs{Track(inst->Arg(0), env)};
+ if (lhs) {
+ lhs->shift_left = shift.U32();
+ }
+ return lhs;
+ break;
+ }
+ case IR::Opcode::BitwiseAnd32: {
+ IR::Value op1{inst->Arg(0)};
+ IR::Value op2{inst->Arg(1)};
+ if (op1.IsImmediate()) {
+ std::swap(op1, op2);
+ }
+ if (!op2.IsImmediate() && !op1.IsImmediate()) {
+ do {
+ auto try_index = TryGetConstant(op1, env);
+ if (try_index) {
+ op1 = op2;
+ op2 = IR::Value{*try_index};
+ break;
+ }
+ auto try_index_2 = TryGetConstant(op2, env);
+ if (try_index_2) {
+ op2 = IR::Value{*try_index_2};
+ break;
+ }
+ return std::nullopt;
+ } while (false);
+ }
+ std::optional lhs{Track(op1, env)};
+ if (lhs) {
+ lhs->shift_left = static_cast<u32>(std::countr_zero(op2.U32()));
+ }
+ return lhs;
+ break;
+ }
case IR::Opcode::GetCbufU32x2:
case IR::Opcode::GetCbufU32:
break;
@@ -223,8 +289,10 @@ std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst) {
return ConstBufferAddr{
.index = index.U32(),
.offset = offset.U32(),
+ .shift_left = 0,
.secondary_index = 0,
.secondary_offset = 0,
+ .secondary_shift_left = 0,
.dynamic_offset = {},
.count = 1,
.has_secondary = false,
@@ -248,8 +316,10 @@ std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst) {
return ConstBufferAddr{
.index = index.U32(),
.offset = base_offset,
+ .shift_left = 0,
.secondary_index = 0,
.secondary_offset = 0,
+ .secondary_shift_left = 0,
.dynamic_offset = dynamic_offset,
.count = 8,
.has_secondary = false,
@@ -259,7 +329,7 @@ std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst) {
TextureInst MakeInst(Environment& env, IR::Block* block, IR::Inst& inst) {
ConstBufferAddr addr;
if (IsBindless(inst)) {
- const std::optional<ConstBufferAddr> track_addr{Track(inst.Arg(0))};
+ const std::optional<ConstBufferAddr> track_addr{Track(inst.Arg(0), env)};
if (!track_addr) {
throw NotImplementedException("Failed to track bindless texture constant buffer");
}
@@ -268,8 +338,10 @@ TextureInst MakeInst(Environment& env, IR::Block* block, IR::Inst& inst) {
addr = ConstBufferAddr{
.index = env.TextureBoundBuffer(),
.offset = inst.Arg(0).U32(),
+ .shift_left = 0,
.secondary_index = 0,
.secondary_offset = 0,
+ .secondary_shift_left = 0,
.dynamic_offset = {},
.count = 1,
.has_secondary = false,
@@ -285,8 +357,9 @@ TextureInst MakeInst(Environment& env, IR::Block* block, IR::Inst& inst) {
TextureType ReadTextureType(Environment& env, const ConstBufferAddr& cbuf) {
const u32 secondary_index{cbuf.has_secondary ? cbuf.secondary_index : cbuf.index};
const u32 secondary_offset{cbuf.has_secondary ? cbuf.secondary_offset : cbuf.offset};
- const u32 lhs_raw{env.ReadCbufValue(cbuf.index, cbuf.offset)};
- const u32 rhs_raw{env.ReadCbufValue(secondary_index, secondary_offset)};
+ const u32 lhs_raw{env.ReadCbufValue(cbuf.index, cbuf.offset) << cbuf.shift_left};
+ const u32 rhs_raw{env.ReadCbufValue(secondary_index, secondary_offset)
+ << cbuf.secondary_shift_left};
return env.ReadTextureType(lhs_raw | rhs_raw);
}
@@ -363,6 +436,21 @@ private:
TextureDescriptors& texture_descriptors;
ImageDescriptors& image_descriptors;
};
+
+void PatchImageSampleImplicitLod(IR::Block& block, IR::Inst& inst) {
+ IR::IREmitter ir{block, IR::Block::InstructionList::s_iterator_to(inst)};
+ const auto info{inst.Flags<IR::TextureInstInfo>()};
+ const IR::Value coord(inst.Arg(1));
+ const IR::Value handle(ir.Imm32(0));
+ const IR::U32 lod{ir.Imm32(0)};
+ const IR::Value texture_size = ir.ImageQueryDimension(handle, lod, info);
+ inst.SetArg(
+ 1, ir.CompositeConstruct(
+ ir.FPMul(IR::F32(ir.CompositeExtract(coord, 0)),
+ ir.FPRecip(ir.ConvertUToF(32, 32, ir.CompositeExtract(texture_size, 0)))),
+ ir.FPMul(IR::F32(ir.CompositeExtract(coord, 1)),
+ ir.FPRecip(ir.ConvertUToF(32, 32, ir.CompositeExtract(texture_size, 1))))));
+}
} // Anonymous namespace
void TexturePass(Environment& env, IR::Program& program) {
@@ -400,6 +488,14 @@ void TexturePass(Environment& env, IR::Program& program) {
flags.type.Assign(ReadTextureType(env, cbuf));
inst->SetFlags(flags);
break;
+ case IR::Opcode::ImageSampleImplicitLod:
+ if (flags.type != TextureType::Color2D) {
+ break;
+ }
+ if (ReadTextureType(env, cbuf) == TextureType::Color2DRect) {
+ PatchImageSampleImplicitLod(*texture_inst.block, *texture_inst.inst);
+ }
+ break;
case IR::Opcode::ImageFetch:
if (flags.type != TextureType::Color1D) {
break;
@@ -465,8 +561,10 @@ void TexturePass(Environment& env, IR::Program& program) {
.has_secondary = cbuf.has_secondary,
.cbuf_index = cbuf.index,
.cbuf_offset = cbuf.offset,
+ .shift_left = cbuf.shift_left,
.secondary_cbuf_index = cbuf.secondary_index,
.secondary_cbuf_offset = cbuf.secondary_offset,
+ .secondary_shift_left = cbuf.secondary_shift_left,
.count = cbuf.count,
.size_shift = DESCRIPTOR_SIZE_SHIFT,
});
@@ -477,8 +575,10 @@ void TexturePass(Environment& env, IR::Program& program) {
.has_secondary = cbuf.has_secondary,
.cbuf_index = cbuf.index,
.cbuf_offset = cbuf.offset,
+ .shift_left = cbuf.shift_left,
.secondary_cbuf_index = cbuf.secondary_index,
.secondary_cbuf_offset = cbuf.secondary_offset,
+ .secondary_shift_left = cbuf.secondary_shift_left,
.count = cbuf.count,
.size_shift = DESCRIPTOR_SIZE_SHIFT,
});
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-10 05:12:53 +0000