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vk_rasterizer: Workaround bug in VK_EXT_vertex_input_dynamic_state 

Workaround potential bug on Nvidia's driver where only updating high
attributes leaves low attributes out dated.
This commit is contained in:
ReinUsesLisp 2021-06-26 17:46:01 -03:00 committed by ameerj
parent 5643a909bc
commit fba6bd92d4
4 changed files with 20 additions and 19 deletions
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4
src/video_core/engines/maxwell_3d.h
View File

@ -305,10 +305,6 @@ public:
return (type == Type::SignedNorm) || (type == Type::UnsignedNorm);
}
bool IsConstant() const {
return constant;
}
bool IsValid() const {
return size != Size::Invalid;
}

2
src/video_core/renderer_opengl/gl_rasterizer.cpp
View File

@ -97,7 +97,7 @@ void RasterizerOpenGL::SyncVertexFormats() {
const auto gl_index = static_cast<GLuint>(index);
// Disable constant attributes.
if (attrib.IsConstant()) {
if (attrib.constant) {
glDisableVertexAttribArray(gl_index);
continue;
}

2
src/video_core/renderer_vulkan/fixed_pipeline_state.cpp
View File

@ -128,7 +128,7 @@ void FixedPipelineState::Refresh(Tegra::Engines::Maxwell3D& maxwell3d,
const auto& input = regs.vertex_attrib_format[index];
auto& attribute = attributes[index];
attribute.raw = 0;
attribute.enabled.Assign(input.IsConstant() ? 0 : 1);
attribute.enabled.Assign(input.constant ? 0 : 1);
attribute.buffer.Assign(input.buffer);
attribute.offset.Assign(input.offset);
attribute.type.Assign(static_cast<u32>(input.type.Value()));

31
src/video_core/renderer_vulkan/vk_rasterizer.cpp
View File

@ -801,25 +801,30 @@ void RasterizerVulkan::UpdateVertexInput(Tegra::Engines::Maxwell3D::Regs& regs)
boost::container::static_vector<VkVertexInputBindingDescription2EXT, 32> bindings;
boost::container::static_vector<VkVertexInputAttributeDescription2EXT, 32> attributes;
// There seems to be a bug on Nvidia's driver where updating only higher attributes ends up
// generating dirty state. Track the highest dirty attribute and update all attributes until
// that one.
size_t highest_dirty_attr{};
for (size_t index = 0; index < Maxwell::NumVertexAttributes; ++index) {
if (!dirty[Dirty::VertexAttribute0 + index]) {
continue;
if (dirty[Dirty::VertexAttribute0 + index]) {
highest_dirty_attr = index;
}
}
for (size_t index = 0; index < highest_dirty_attr; ++index) {
const Maxwell::VertexAttribute attribute{regs.vertex_attrib_format[index]};
const u32 binding{attribute.buffer};
dirty[Dirty::VertexAttribute0 + index] = false;
dirty[Dirty::VertexBinding0 + static_cast<size_t>(binding)] = true;
attributes.push_back({
.sType = VK_STRUCTURE_TYPE_VERTEX_INPUT_ATTRIBUTE_DESCRIPTION_2_EXT,
.pNext = nullptr,
.location = static_cast<u32>(index),
.binding = binding,
.format = attribute.IsConstant()
? VK_FORMAT_A8B8G8R8_UNORM_PACK32
: MaxwellToVK::VertexFormat(attribute.type, attribute.size),
.offset = attribute.offset,
});
if (!attribute.constant) {
attributes.push_back({
.sType = VK_STRUCTURE_TYPE_VERTEX_INPUT_ATTRIBUTE_DESCRIPTION_2_EXT,
.pNext = nullptr,
.location = static_cast<u32>(index),
.binding = binding,
.format = MaxwellToVK::VertexFormat(attribute.type, attribute.size),
.offset = attribute.offset,
});
}
}
for (size_t index = 0; index < Maxwell::NumVertexAttributes; ++index) {
if (!dirty[Dirty::VertexBinding0 + index]) {