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glsl: textures wip

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This commit is contained in:
ameerj 2021-05-26 21:18:17 -04:00
parent 3d086e6130
commit d171083d53
9 changed files with 139 additions and 75 deletions
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54
src/shader_recompiler/backend/glsl/emit_context.cpp
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@ -8,9 +8,21 @@
#include "shader_recompiler/profile.h"
namespace Shader::Backend::GLSL {
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);
}
} // namespace
EmitContext::EmitContext(IR::Program& program, [[maybe_unused]] Bindings& bindings,
const Profile& profile_)
EmitContext::EmitContext(IR::Program& program, Bindings& bindings, const Profile& profile_)
: info{program.info}, profile{profile_} {
std::string header = "#version 450\n";
SetupExtensions(header);
@ -49,7 +61,8 @@ EmitContext::EmitContext(IR::Program& program, [[maybe_unused]] Bindings& bindin
for (size_t index = 0; index < info.input_generics.size(); ++index) {
const auto& generic{info.input_generics[index]};
if (generic.used) {
Add("layout(location={})in vec4 in_attr{};", index, index);
Add("layout(location={}) {} in vec4 in_attr{};", index,
InterpDecorator(generic.interpolation), index);
}
}
for (size_t index = 0; index < info.stores_frag_color.size(); ++index) {
@ -66,6 +79,7 @@ EmitContext::EmitContext(IR::Program& program, [[maybe_unused]] Bindings& bindin
DefineConstantBuffers();
DefineStorageBuffers();
DefineHelperFunctions();
SetupImages(bindings);
Add("void main(){{");
if (stage == Stage::VertexA || stage == Stage::VertexB) {
@ -102,7 +116,7 @@ void EmitContext::DefineConstantBuffers() {
}
u32 binding{};
for (const auto& desc : info.constant_buffer_descriptors) {
Add("layout(std140,binding={}) uniform cbuf_{}{{vec4 cbuf{}[{}];}};", binding, binding,
Add("layout(std140,binding={}) uniform cbuf_{}{{vec4 cbuf{}[{}];}};", binding, desc.index,
desc.index, 4 * 1024);
++binding;
}
@ -164,4 +178,36 @@ void EmitContext::DefineHelperFunctions() {
}
}
void EmitContext::SetupImages(Bindings& bindings) {
image_buffer_bindings.reserve(info.image_buffer_descriptors.size());
for (const auto& desc : info.image_buffer_descriptors) {
throw NotImplementedException("image_buffer_descriptors");
image_buffer_bindings.push_back(bindings.image);
bindings.image += desc.count;
}
image_bindings.reserve(info.image_descriptors.size());
for (const auto& desc : info.image_descriptors) {
throw NotImplementedException("image_bindings");
image_bindings.push_back(bindings.image);
bindings.image += desc.count;
}
texture_buffer_bindings.reserve(info.texture_buffer_descriptors.size());
for (const auto& desc : info.texture_buffer_descriptors) {
throw NotImplementedException("TextureType::Buffer");
texture_buffer_bindings.push_back(bindings.texture);
bindings.texture += desc.count;
}
texture_bindings.reserve(info.texture_descriptors.size());
for (const auto& desc : info.texture_descriptors) {
texture_bindings.push_back(bindings.texture);
const auto indices{bindings.texture + desc.count};
for (u32 index = bindings.texture; index < indices; ++index) {
Add("layout(binding={}) uniform sampler2D tex{};", bindings.texture, index);
}
bindings.texture += desc.count;
}
}
} // namespace Shader::Backend::GLSL