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[shader_recompiler] add 'legacy descriptor indices' toggle for tomodachi

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Signed-off-by: lizzie <lizzie@eden-emu.dev>
This commit is contained in:
lizzie 2026-05-16 14:34:48 +00:00
parent 4d49341918
commit a99cc426d6
3 changed files with 34 additions and 20 deletions
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2
src/common/settings.h
View file

@ -591,6 +591,8 @@ struct Values {
SwitchableSetting<bool> gpu_unswizzle_enabled{linkage, false, "gpu_unswizzle_enabled",
Category::RendererHacks};
SwitchableSetting<bool> legacy_descriptor_indices{linkage, true, "legacy_descriptor_indices", Category::RendererHacks};
SwitchableSetting<ExtendedDynamicState> dyna_state{linkage,
#if defined(ANDROID)
ExtendedDynamicState::Disabled,

39
src/shader_recompiler/backend/spirv/emit_spirv_image.cpp
View file

@ -221,12 +221,17 @@ private:
Id Texture(EmitContext& ctx, IR::TextureInstInfo info, [[maybe_unused]] const IR::Value& index) {
const TextureDefinition& def{ctx.textures.at(info.descriptor_index)};
if (def.count > 1) {
const DescriptorIndex idx{ctx, index};
const Id pointer{ctx.OpAccessChain(def.pointer_type, def.id, idx.Value())};
idx.Decorate(ctx, pointer);
const Id object{ctx.OpLoad(def.sampled_type, pointer)};
idx.Decorate(ctx, object);
return object;
if (Settings::values.legacy_descriptor_indices.GetValue()) {
const Id pointer{ctx.OpAccessChain(def.pointer_type, def.id, ctx.Def(index))};
return ctx.OpLoad(def.sampled_type, pointer);
} else {
const DescriptorIndex idx{ctx, index};
const Id pointer{ctx.OpAccessChain(def.pointer_type, def.id, idx.Value())};
idx.Decorate(ctx, pointer);
const Id object{ctx.OpLoad(def.sampled_type, pointer)};
idx.Decorate(ctx, object);
return object;
}
} else {
return ctx.OpLoad(def.sampled_type, def.id);
}
@ -244,14 +249,20 @@ Id TextureImage(EmitContext& ctx, IR::TextureInstInfo info, const IR::Value& ind
} else {
const TextureDefinition& def{ctx.textures.at(info.descriptor_index)};
if (def.count > 1) {
const DescriptorIndex idx{ctx, index};
const Id ptr{ctx.OpAccessChain(def.pointer_type, def.id, idx.Value())};
idx.Decorate(ctx, ptr);
const Id object{ctx.OpLoad(def.sampled_type, ptr)};
idx.Decorate(ctx, object);
const Id image{ctx.OpImage(def.image_type, object)};
idx.Decorate(ctx, image);
return image;
if (Settings::values.legacy_descriptor_indices.GetValue()) {
const Id idx{index.IsImmediate() ? ctx.Const(index.U32()) : ctx.Def(index)};
const Id ptr{ctx.OpAccessChain(def.pointer_type, def.id, idx)};
return ctx.OpImage(def.image_type, ctx.OpLoad(def.sampled_type, ptr));
} else {
const DescriptorIndex idx{ctx, index};
const Id ptr{ctx.OpAccessChain(def.pointer_type, def.id, idx.Value())};
idx.Decorate(ctx, ptr);
const Id object{ctx.OpLoad(def.sampled_type, ptr)};
idx.Decorate(ctx, object);
const Id image{ctx.OpImage(def.image_type, object)};
idx.Decorate(ctx, image);
return image;
}
}
return ctx.OpImage(def.image_type, ctx.OpLoad(def.sampled_type, def.id));
}

13
src/shader_recompiler/ir_opt/texture_pass.cpp
View file

@ -12,6 +12,7 @@
#include <limits>
#include <boost/container/small_vector.hpp>
#include "common/settings.h"
#include "shader_recompiler/environment.h"
#include "shader_recompiler/frontend/ir/basic_block.h"
#include "shader_recompiler/frontend/ir/breadth_first_search.h"
@ -461,7 +462,7 @@ std::optional<ConstBufferAddr> TryGetConstBuffer(const IR::Inst* inst, Environme
.secondary_offset = 0,
.secondary_shift_left = 0,
.dynamic_offset = dynamic_offset,
.count = DynamicDescriptorCount(base_offset, size_shift),
.count = Settings::values.legacy_descriptor_indices.GetValue() ? 8 : DynamicDescriptorCount(base_offset, size_shift),
.has_secondary = false,
};
}
@ -733,9 +734,10 @@ void TexturePass(Environment& env, IR::Program& program, const HostTranslateInfo
break;
}
u32 index;
const u32 size_shift{cbuf.count > 1 ? DynamicDescriptorSizeShift(cbuf.dynamic_offset)
: DESCRIPTOR_SIZE_SHIFT};
u32 count{cbuf.count};
u32 size_shift = cbuf.count > 1 ? DynamicDescriptorSizeShift(cbuf.dynamic_offset) : DESCRIPTOR_SIZE_SHIFT;
if (Settings::values.legacy_descriptor_indices.GetValue())
size_shift = DESCRIPTOR_SIZE_SHIFT;
u32 count = cbuf.count;
switch (inst->GetOpcode()) {
case IR::Opcode::ImageRead:
case IR::Opcode::ImageAtomicIAdd32:
@ -821,8 +823,7 @@ void TexturePass(Environment& env, IR::Program& program, const HostTranslateInfo
const auto insert_point{IR::Block::InstructionList::s_iterator_to(*inst)};
IR::IREmitter ir{*texture_inst.block, insert_point};
const IR::U32 shift{ir.Imm32(size_shift)};
inst->SetArg(0, ir.UMin(ir.ShiftRightLogical(cbuf.dynamic_offset, shift),
ir.Imm32(count - 1)));
inst->SetArg(0, ir.UMin(ir.ShiftRightLogical(cbuf.dynamic_offset, shift), ir.Imm32(count - 1)));
} else {
inst->SetArg(0, IR::Value{});
}