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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(),

4
src/video_core/vulkan_common/vulkan_device.cpp
View file

@ -363,6 +363,8 @@ Device::Device(VkInstance instance_, vk::PhysicalDevice physical_, VkSurfaceKHR
#ifdef ANDROID
if (is_adreno) {
must_emulate_scaled_formats = true;
LOG_WARNING(Render_Vulkan, "Adreno drivers have broken VK_EXT_extended_dynamic_state");
extensions.extended_dynamic_state = false;
loaded_extensions.erase(VK_EXT_EXTENDED_DYNAMIC_STATE_EXTENSION_NAME);
@ -391,6 +393,8 @@ Device::Device(VkInstance instance_, vk::PhysicalDevice physical_, VkSurfaceKHR
}
if (is_arm) {
must_emulate_scaled_formats = true;
LOG_WARNING(Render_Vulkan, "ARM drivers have broken VK_EXT_extended_dynamic_state");
extensions.extended_dynamic_state = false;
loaded_extensions.erase(VK_EXT_EXTENDED_DYNAMIC_STATE_EXTENSION_NAME);

5
src/video_core/vulkan_common/vulkan_device.h
View file

@ -551,6 +551,10 @@ public:
return cant_blit_msaa;
}
bool MustEmulateScaledFormats() const {
return must_emulate_scaled_formats;
}
bool MustEmulateBGR565() const {
return must_emulate_bgr565;
}
@ -666,6 +670,7 @@ private:
bool has_nsight_graphics{}; ///< Has Nsight Graphics attached
bool supports_d24_depth{}; ///< Supports D24 depth buffers.
bool cant_blit_msaa{}; ///< Does not support MSAA<->MSAA blitting.
bool must_emulate_scaled_formats{}; ///< Requires scaled vertex format emulation
bool must_emulate_bgr565{}; ///< Emulates BGR565 by swizzling RGB565 format.
bool dynamic_state3_blending{}; ///< Has all blending features of dynamic_state3.
bool dynamic_state3_enables{}; ///< Has all enables features of dynamic_state3.