85 lines
2.8 KiB
C++
85 lines
2.8 KiB
C++
// Copyright 2021 yuzu Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#include <string_view>
|
|
|
|
#include "shader_recompiler/backend/glasm/emit_context.h"
|
|
#include "shader_recompiler/frontend/ir/program.h"
|
|
|
|
namespace Shader::Backend::GLASM {
|
|
namespace {
|
|
std::string_view InterpDecorator(Interpolation interp) {
|
|
switch (interp) {
|
|
case Interpolation::Smooth:
|
|
return "";
|
|
case Interpolation::Flat:
|
|
return "FLAT ";
|
|
case Interpolation::NoPerspective:
|
|
return "NOPERSPECTIVE ";
|
|
}
|
|
throw InvalidArgument("Invalid interpolation {}", interp);
|
|
}
|
|
} // Anonymous namespace
|
|
|
|
EmitContext::EmitContext(IR::Program& program) {
|
|
// FIXME: Temporary partial implementation
|
|
u32 cbuf_index{};
|
|
for (const auto& desc : program.info.constant_buffer_descriptors) {
|
|
if (desc.count != 1) {
|
|
throw NotImplementedException("Constant buffer descriptor array");
|
|
}
|
|
Add("CBUFFER c{}[]={{program.buffer[{}]}};", desc.index, cbuf_index);
|
|
++cbuf_index;
|
|
}
|
|
for (const auto& desc : program.info.storage_buffers_descriptors) {
|
|
if (desc.count != 1) {
|
|
throw NotImplementedException("Storage buffer descriptor array");
|
|
}
|
|
}
|
|
if (const size_t num = program.info.storage_buffers_descriptors.size(); num > 0) {
|
|
Add("PARAM c[{}]={{program.local[0..{}]}};", num, num - 1);
|
|
}
|
|
switch (program.stage) {
|
|
case Stage::VertexA:
|
|
case Stage::VertexB:
|
|
stage_name = "vertex";
|
|
break;
|
|
case Stage::TessellationControl:
|
|
case Stage::TessellationEval:
|
|
case Stage::Geometry:
|
|
stage_name = "primitive";
|
|
break;
|
|
case Stage::Fragment:
|
|
stage_name = "fragment";
|
|
break;
|
|
case Stage::Compute:
|
|
stage_name = "compute";
|
|
break;
|
|
}
|
|
for (size_t index = 0; index < program.info.input_generics.size(); ++index) {
|
|
const auto& generic{program.info.input_generics[index]};
|
|
if (generic.used) {
|
|
Add("{}ATTRIB in_attr{}[]={{{}.attrib[{}..{}]}};",
|
|
InterpDecorator(generic.interpolation), index, stage_name, index, index);
|
|
}
|
|
}
|
|
for (size_t index = 0; index < program.info.stores_frag_color.size(); ++index) {
|
|
if (!program.info.stores_frag_color[index]) {
|
|
continue;
|
|
}
|
|
if (index == 0) {
|
|
Add("OUTPUT frag_color0=result.color;");
|
|
} else {
|
|
Add("OUTPUT frag_color{}[]=result.color[{}];", index, index);
|
|
}
|
|
}
|
|
for (size_t index = 0; index < program.info.stores_generics.size(); ++index) {
|
|
if (program.info.stores_generics[index]) {
|
|
Add("OUTPUT out_attr{}[]={{result.attrib[{}..{}]}};", index, index, index);
|
|
}
|
|
}
|
|
}
|
|
|
|
} // namespace Shader::Backend::GLASM
|