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authorbunnei <bunneidev@gmail.com>2020-06-01 00:40:17 +0200
committerGitHub <noreply@github.com>2020-06-01 00:40:17 +0200
commite68ee43a1a99dd62d8f6a6a469764a6737b4e0e8 (patch)
treef9714b1ff0f6dbfeb1255d7b6ec16d22327a8d0f
parentUpdate CMakeLists.txt (diff)
parentvk_rasterizer: Implement constant attributes (diff)
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-rw-r--r--src/video_core/renderer_vulkan/vk_pipeline_cache.cpp4
-rw-r--r--src/video_core/renderer_vulkan/vk_rasterizer.cpp6
-rw-r--r--src/video_core/renderer_vulkan/vk_shader_decompiler.cpp30
-rw-r--r--src/video_core/renderer_vulkan/vk_shader_decompiler.h3
4 files changed, 26 insertions, 17 deletions
diff --git a/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp b/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
index a5c7b7945..65a1c6245 100644
--- a/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
+++ b/src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
@@ -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;
diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.cpp b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
index be5b77fae..a3d992ed3 100644
--- a/src/video_core/renderer_vulkan/vk_rasterizer.cpp
+++ b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
@@ -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());
}
diff --git a/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp b/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
index 6f6dedd82..a13e8baa7 100644
--- a/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
+++ b/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
@@ -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};
diff --git a/src/video_core/renderer_vulkan/vk_shader_decompiler.h b/src/video_core/renderer_vulkan/vk_shader_decompiler.h
index f4c05ac3c..b7af26388 100644
--- a/src/video_core/renderer_vulkan/vk_shader_decompiler.h
+++ b/src/video_core/renderer_vulkan/vk_shader_decompiler.h
@@ -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{};
};