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Implement scaled vertex buffer format emulation

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These formats are unsupported by mobile GPUs so they need to be emulated in shaders instead.
This commit is contained in:
Billy Laws 2023-02-18 18:23:36 +00:00 • committed by bunnei
parent 206f1304d6
commit 158a1896ec
9 changed files with 97 additions and 51 deletions
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8
src/video_core/renderer_vulkan/maxwell_to_vk.cpp
View file

@ -347,6 +347,14 @@ VkPrimitiveTopology PrimitiveTopology([[maybe_unused]] const Device& device,
VkFormat VertexFormat(const Device& device, Maxwell::VertexAttribute::Type type,
Maxwell::VertexAttribute::Size size) {
if (device.MustEmulateScaledFormats()) {
if (type == Maxwell::VertexAttribute::Type::SScaled) {
type = Maxwell::VertexAttribute::Type::SInt;
} else if (type == Maxwell::VertexAttribute::Type::UScaled) {
type = Maxwell::VertexAttribute::Type::UInt;
}
}
const VkFormat format{([&]() {
switch (type) {
case Maxwell::VertexAttribute::Type::UnusedEnumDoNotUseBecauseItWillGoAway:

7
src/video_core/renderer_vulkan/vk_pipeline_cache.cpp
View file

@ -114,14 +114,16 @@ Shader::AttributeType CastAttributeType(const FixedPipelineState::VertexAttribut
return Shader::AttributeType::Disabled;
case Maxwell::VertexAttribute::Type::SNorm:
case Maxwell::VertexAttribute::Type::UNorm:
case Maxwell::VertexAttribute::Type::UScaled:
case Maxwell::VertexAttribute::Type::SScaled:
case Maxwell::VertexAttribute::Type::Float:
return Shader::AttributeType::Float;
case Maxwell::VertexAttribute::Type::SInt:
return Shader::AttributeType::SignedInt;
case Maxwell::VertexAttribute::Type::UInt:
return Shader::AttributeType::UnsignedInt;
case Maxwell::VertexAttribute::Type::UScaled:
return Shader::AttributeType::UnsignedScaled;
case Maxwell::VertexAttribute::Type::SScaled:
return Shader::AttributeType::SignedScaled;
}
return Shader::AttributeType::Float;
}
@ -331,6 +333,7 @@ PipelineCache::PipelineCache(RasterizerVulkan& rasterizer_, const Device& device
.support_derivative_control = true,
.support_geometry_shader_passthrough = device.IsNvGeometryShaderPassthroughSupported(),
.support_native_ndc = device.IsExtDepthClipControlSupported(),
.support_scaled_attributes = !device.MustEmulateScaledFormats(),
.warp_size_potentially_larger_than_guest = device.IsWarpSizePotentiallyBiggerThanGuest(),