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Merge pull request #3930 from ReinUsesLisp/animal-borders

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vk_rasterizer: Implement constant attributes
This commit is contained in:
bunnei 2020-05-31 18:40:17 -04:00 committed by GitHub
commit e68ee43a1a
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 26 additions and 17 deletions
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4
src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
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@ -312,7 +312,9 @@ VKPipelineCache::DecompileShaders(const GraphicsPipelineCacheKey& key) {
ASSERT(point_size != 0.0f);
}
for (std::size_t i = 0; i < Maxwell::NumVertexAttributes; ++i) {
specialization.attribute_types[i] = fixed_state.vertex_input.attributes[i].Type();
const auto& attribute = fixed_state.vertex_input.attributes[i];
specialization.enabled_attributes[i] = attribute.enabled.Value() != 0;
specialization.attribute_types[i] = attribute.Type();
}
specialization.ndc_minus_one_to_one = fixed_state.rasterizer.ndc_minus_one_to_one;

6
src/video_core/renderer_vulkan/vk_rasterizer.cpp
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@ -877,14 +877,10 @@ void RasterizerVulkan::SetupVertexArrays(FixedPipelineState::VertexInput& vertex
for (std::size_t index = 0; index < Maxwell::NumVertexAttributes; ++index) {
const auto& attrib = regs.vertex_attrib_format[index];
if (!attrib.IsValid()) {
if (attrib.IsConstant()) {
vertex_input.SetAttribute(index, false, 0, 0, {}, {});
continue;
}
[[maybe_unused]] const auto& buffer = regs.vertex_array[attrib.buffer];
ASSERT(buffer.IsEnabled());
vertex_input.SetAttribute(index, true, attrib.buffer, attrib.offset, attrib.type.Value(),
attrib.size.Value());
}

30
src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
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@ -741,8 +741,10 @@ private:
if (!IsGenericAttribute(index)) {
continue;
}
const u32 location = GetGenericAttributeLocation(index);
if (!IsAttributeEnabled(location)) {
continue;
}
const auto type_descriptor = GetAttributeType(location);
Id type;
if (IsInputAttributeArray()) {
@ -986,6 +988,10 @@ private:
return stage == ShaderType::TesselationControl;
}
bool IsAttributeEnabled(u32 location) const {
return stage != ShaderType::Vertex || specialization.enabled_attributes[location];
}
u32 GetNumInputVertices() const {
switch (stage) {
case ShaderType::Geometry:
@ -1201,16 +1207,20 @@ private:
UNIMPLEMENTED_MSG("Unmanaged FrontFacing element={}", element);
return {v_float_zero, Type::Float};
default:
if (IsGenericAttribute(attribute)) {
const u32 location = GetGenericAttributeLocation(attribute);
const auto type_descriptor = GetAttributeType(location);
const Type type = type_descriptor.type;
const Id attribute_id = input_attributes.at(attribute);
const std::vector elements = {element};
const Id pointer = ArrayPass(type_descriptor.scalar, attribute_id, elements);
return {OpLoad(GetTypeDefinition(type), pointer), type};
if (!IsGenericAttribute(attribute)) {
break;
}
break;
const u32 location = GetGenericAttributeLocation(attribute);
if (!IsAttributeEnabled(location)) {
// Disabled attributes (also known as constant attributes) always return zero.
return {v_float_zero, Type::Float};
}
const auto type_descriptor = GetAttributeType(location);
const Type type = type_descriptor.type;
const Id attribute_id = input_attributes.at(attribute);
const std::vector elements = {element};
const Id pointer = ArrayPass(type_descriptor.scalar, attribute_id, elements);
return {OpLoad(GetTypeDefinition(type), pointer), type};
}
UNIMPLEMENTED_MSG("Unhandled input attribute: {}", static_cast<u32>(attribute));
return {v_float_zero, Type::Float};

3
src/video_core/renderer_vulkan/vk_shader_decompiler.h
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@ -88,7 +88,8 @@ struct Specialization final {
u32 shared_memory_size{};
// Graphics specific
std::optional<float> point_size{};
std::optional<float> point_size;
std::bitset<Maxwell::NumVertexAttributes> enabled_attributes;
std::array<Maxwell::VertexAttribute::Type, Maxwell::NumVertexAttributes> attribute_types{};
bool ndc_minus_one_to_one{};
};