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https://github.com/Takiiiiiiii/strato.git
synced 2025-07-17 08:46:39 +00:00
Implement Maxwell3D Vertex Attributes
Translates all Maxwell3D vertex attributes to Vulkan with the exception of `isConstant` which causes the vertex attribute to return a constant value `(0,0,0,X)` which was trivial in OpenGL with `glDisableVertexAttribArray` and `glVertexAttrib4(..., 0, 0, 0, 1)` but we don't have access to this in Vulkan and might need to depend on undefined behavior or manually emulate it in a shader. This'll be revisited in the future after checking host GPU behavior.
This commit is contained in:
PixelyIon
@ -55,6 +55,10 @@ namespace skyline::gpu::interconnect {
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vertexState.unlink<vk::PipelineVertexInputDivisorStateCreateInfoEXT>();
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}
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u32 attributeIndex{};
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for (auto &vertexAttribute : vertexAttributes)
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vertexAttribute.location = attributeIndex++;
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if (!gpu.quirks.supportsLastProvokingVertex)
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rasterizerState.unlink<vk::PipelineRasterizationProvokingVertexStateCreateInfoEXT>();
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}
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@ -772,10 +776,13 @@ namespace skyline::gpu::interconnect {
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std::array<VertexBuffer, maxwell3d::VertexBufferCount> vertexBuffers{};
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std::array<vk::VertexInputBindingDescription, maxwell3d::VertexBufferCount> vertexBindings{};
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std::array<vk::VertexInputBindingDivisorDescriptionEXT, maxwell3d::VertexBufferCount> vertexBindingDivisors{};
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std::array<vk::VertexInputAttributeDescription, maxwell3d::VertexAttributeCount> vertexAttributes{};
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vk::StructureChain<vk::PipelineVertexInputStateCreateInfo, vk::PipelineVertexInputDivisorStateCreateInfoEXT> vertexState{
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vk::PipelineVertexInputStateCreateInfo{
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.pVertexBindingDescriptions = vertexBindings.data(),
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.vertexBindingDescriptionCount = maxwell3d::VertexBufferCount,
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.pVertexAttributeDescriptions = vertexAttributes.data(),
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.vertexAttributeDescriptionCount = maxwell3d::VertexAttributeCount,
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}, vk::PipelineVertexInputDivisorStateCreateInfoEXT{
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.pVertexBindingDivisors = vertexBindingDivisors.data(),
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.vertexBindingDivisorCount = maxwell3d::VertexBufferCount,
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@ -814,5 +821,124 @@ namespace skyline::gpu::interconnect {
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Logger::Warn("Cannot set vertex attribute divisor to zero without host GPU support");
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vertexBindingDivisors[index].divisor = divisor;
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}
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vk::Format ConvertVertexBufferFormat(maxwell3d::VertexAttribute::ElementType type, maxwell3d::VertexAttribute::ElementSize size) {
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using Size = maxwell3d::VertexAttribute::ElementSize;
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using Type = maxwell3d::VertexAttribute::ElementType;
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if (size == Size::e0 || type == Type::None)
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return vk::Format::eUndefined;
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switch(size | type) {
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// @fmt:off
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/* 8-bit components */
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case Size::e1x8 | Type::Unorm: return vk::Format::eR8Unorm;
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case Size::e1x8 | Type::Snorm: return vk::Format::eR8Snorm;
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case Size::e1x8 | Type::Uint: return vk::Format::eR8Uint;
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case Size::e1x8 | Type::Sint: return vk::Format::eR8Sint;
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case Size::e1x8 | Type::Uscaled: return vk::Format::eR8Uscaled;
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case Size::e1x8 | Type::Sscaled: return vk::Format::eR8Sscaled;
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case Size::e2x8 | Type::Unorm: return vk::Format::eR8G8Unorm;
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case Size::e2x8 | Type::Snorm: return vk::Format::eR8G8Snorm;
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case Size::e2x8 | Type::Uint: return vk::Format::eR8G8Uint;
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case Size::e2x8 | Type::Sint: return vk::Format::eR8G8Sint;
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case Size::e2x8 | Type::Uscaled: return vk::Format::eR8G8Uscaled;
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case Size::e2x8 | Type::Sscaled: return vk::Format::eR8G8Sscaled;
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case Size::e3x8 | Type::Unorm: return vk::Format::eR8G8B8Unorm;
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case Size::e3x8 | Type::Snorm: return vk::Format::eR8G8B8Snorm;
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case Size::e3x8 | Type::Uint: return vk::Format::eR8G8B8Uint;
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case Size::e3x8 | Type::Sint: return vk::Format::eR8G8B8Sint;
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case Size::e3x8 | Type::Uscaled: return vk::Format::eR8G8B8Uscaled;
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case Size::e3x8 | Type::Sscaled: return vk::Format::eR8G8B8Sscaled;
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case Size::e4x8 | Type::Unorm: return vk::Format::eR8G8B8A8Unorm;
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case Size::e4x8 | Type::Snorm: return vk::Format::eR8G8B8A8Snorm;
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case Size::e4x8 | Type::Uint: return vk::Format::eR8G8B8A8Uint;
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case Size::e4x8 | Type::Sint: return vk::Format::eR8G8B8A8Sint;
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case Size::e4x8 | Type::Uscaled: return vk::Format::eR8G8B8A8Uscaled;
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case Size::e4x8 | Type::Sscaled: return vk::Format::eR8G8B8A8Sscaled;
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/* 16-bit components */
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case Size::e1x16 | Type::Unorm: return vk::Format::eR16Unorm;
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case Size::e1x16 | Type::Snorm: return vk::Format::eR16Snorm;
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case Size::e1x16 | Type::Uint: return vk::Format::eR16Uint;
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case Size::e1x16 | Type::Sint: return vk::Format::eR16Sint;
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case Size::e1x16 | Type::Uscaled: return vk::Format::eR16Uscaled;
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case Size::e1x16 | Type::Sscaled: return vk::Format::eR16Sscaled;
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case Size::e1x16 | Type::Float: return vk::Format::eR16Sfloat;
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case Size::e2x16 | Type::Unorm: return vk::Format::eR16G16Unorm;
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case Size::e2x16 | Type::Snorm: return vk::Format::eR16G16Snorm;
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case Size::e2x16 | Type::Uint: return vk::Format::eR16G16Uint;
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case Size::e2x16 | Type::Sint: return vk::Format::eR16G16Sint;
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case Size::e2x16 | Type::Uscaled: return vk::Format::eR16G16Uscaled;
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case Size::e2x16 | Type::Sscaled: return vk::Format::eR16G16Sscaled;
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case Size::e2x16 | Type::Float: return vk::Format::eR16G16Sfloat;
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case Size::e3x16 | Type::Unorm: return vk::Format::eR16G16B16Unorm;
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case Size::e3x16 | Type::Snorm: return vk::Format::eR16G16B16Snorm;
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case Size::e3x16 | Type::Uint: return vk::Format::eR16G16B16Uint;
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case Size::e3x16 | Type::Sint: return vk::Format::eR16G16B16Sint;
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case Size::e3x16 | Type::Uscaled: return vk::Format::eR16G16B16Uscaled;
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case Size::e3x16 | Type::Sscaled: return vk::Format::eR16G16B16Sscaled;
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case Size::e3x16 | Type::Float: return vk::Format::eR16G16B16Sfloat;
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case Size::e4x16 | Type::Unorm: return vk::Format::eR16G16B16A16Unorm;
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case Size::e4x16 | Type::Snorm: return vk::Format::eR16G16B16A16Snorm;
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case Size::e4x16 | Type::Uint: return vk::Format::eR16G16B16A16Uint;
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case Size::e4x16 | Type::Sint: return vk::Format::eR16G16B16A16Sint;
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case Size::e4x16 | Type::Uscaled: return vk::Format::eR16G16B16A16Uscaled;
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case Size::e4x16 | Type::Sscaled: return vk::Format::eR16G16B16A16Sscaled;
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case Size::e4x16 | Type::Float: return vk::Format::eR16G16B16A16Sfloat;
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/* 32-bit components */
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case Size::e1x32 | Type::Uint: return vk::Format::eR32Uint;
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case Size::e1x32 | Type::Sint: return vk::Format::eR32Sint;
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case Size::e1x32 | Type::Float: return vk::Format::eR32Sfloat;
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case Size::e2x32 | Type::Uint: return vk::Format::eR32G32Uint;
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case Size::e2x32 | Type::Sint: return vk::Format::eR32G32Sint;
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case Size::e2x32 | Type::Float: return vk::Format::eR32G32Sfloat;
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case Size::e3x32 | Type::Uint: return vk::Format::eR32G32B32Uint;
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case Size::e3x32 | Type::Sint: return vk::Format::eR32G32B32Sint;
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case Size::e3x32 | Type::Float: return vk::Format::eR32G32B32Sfloat;
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case Size::e4x32 | Type::Uint: return vk::Format::eR32G32B32A32Uint;
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case Size::e4x32 | Type::Sint: return vk::Format::eR32G32B32A32Sint;
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case Size::e4x32 | Type::Float: return vk::Format::eR32G32B32A32Sfloat;
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/* 10-bit RGB, 2-bit A */
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case Size::e10_10_10_2 | Type::Unorm: return vk::Format::eA2R10G10B10UnormPack32;
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case Size::e10_10_10_2 | Type::Snorm: return vk::Format::eA2R10G10B10SnormPack32;
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case Size::e10_10_10_2 | Type::Uint: return vk::Format::eA2R10G10B10UintPack32;
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case Size::e10_10_10_2 | Type::Sint: return vk::Format::eA2R10G10B10SintPack32;
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case Size::e10_10_10_2 | Type::Uscaled: return vk::Format::eA2R10G10B10UscaledPack32;
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case Size::e10_10_10_2 | Type::Sscaled: return vk::Format::eA2R10G10B10SscaledPack32;
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/* Unknown */
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case 0x12F: return vk::Format::eUndefined; // Issued by Maxwell3D::InitializeRegisters()
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// @fmt:on
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default:
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throw exception("Unimplemented Vertex Buffer Format: {} | {}", maxwell3d::VertexAttribute::ToString(size), maxwell3d::VertexAttribute::ToString(type));
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}
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}
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void SetVertexAttributeState(u32 index, maxwell3d::VertexAttribute attribute) {
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auto& vkAttributes{vertexAttributes[index]};
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vkAttributes.binding = attribute.bufferId;
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vkAttributes.format = ConvertVertexBufferFormat(attribute.type, attribute.elementSize);
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vkAttributes.offset = attribute.offset;
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}
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};
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}
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