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spirv: Implement rescaling patching

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This commit is contained in:
ReinUsesLisp 2021-07-25 22:26:23 -03:00 • committed by Fernando Sahmkow
parent 01379c5e3c
commit 656adee630
8 changed files with 86 additions and 5 deletions
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35
src/shader_recompiler/backend/spirv/emit_context.cpp
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@ -7,6 +7,8 @@
#include <climits>
#include <string_view>
#include <boost/container/static_vector.hpp>
#include <fmt/format.h>
#include "common/common_types.h"
@ -496,6 +498,7 @@ EmitContext::EmitContext(const Profile& profile_, const RuntimeInfo& runtime_inf
DefineImages(program.info, image_binding);
DefineAttributeMemAccess(program.info);
DefineGlobalMemoryFunctions(program.info);
DefineRescalingInput(program.info);
}
EmitContext::~EmitContext() = default;
@ -996,6 +999,38 @@ void EmitContext::DefineGlobalMemoryFunctions(const Info& info) {
define(&StorageDefinitions::U32x4, storage_types.U32x4, U32[4], sizeof(u32[4]));
}
void EmitContext::DefineRescalingInput(const Info& info) {
if (!info.uses_rescaling_uniform) {
return;
}
boost::container::static_vector<Id, 2> members{F32[1]};
u32 member_index{0};
const u32 num_texture_words{Common::DivCeil(runtime_info.num_textures, 32u)};
if (runtime_info.num_textures > 0) {
rescaling_textures_type = TypeArray(U32[1], Const(num_texture_words));
Decorate(rescaling_textures_type, spv::Decoration::ArrayStride, 4u);
members.push_back(rescaling_textures_type);
rescaling_textures_member_index = ++member_index;
}
const Id push_constant_struct{TypeStruct(std::span(members.data(), members.size()))};
Decorate(push_constant_struct, spv::Decoration::Block);
Name(push_constant_struct, "ResolutionInfo");
MemberDecorate(push_constant_struct, 0u, spv::Decoration::Offset, 0u);
MemberName(push_constant_struct, 0u, "down_factor");
if (runtime_info.num_textures > 0) {
MemberDecorate(push_constant_struct, rescaling_textures_member_index,
spv::Decoration::Offset, 4u);
MemberName(push_constant_struct, rescaling_textures_member_index, "rescaling_textures");
}
const Id pointer_type{TypePointer(spv::StorageClass::PushConstant, push_constant_struct)};
rescaling_push_constants = AddGlobalVariable(pointer_type, spv::StorageClass::PushConstant);
Name(rescaling_push_constants, "rescaling_push_constants");
if (profile.supported_spirv >= 0x00010400) {
interfaces.push_back(rescaling_push_constants);
}
}
void EmitContext::DefineConstantBuffers(const Info& info, u32& binding) {
if (info.constant_buffer_descriptors.empty()) {
return;