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Vulkan: add temporary workaround for AMDVLK

This commit is contained in:
Fernando Sahmkow 2023-08-28 01:37:40 +02:00 committed by Liam
parent 6a1ecab2dd
commit b99f94a7ff
5 changed files with 20 additions and 2 deletions
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2
src/common/settings.h
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@ -350,6 +350,8 @@ struct Values {
linkage, false, "disable_shader_loop_safety_checks", Category::RendererDebug};
Setting<bool> enable_renderdoc_hotkey{linkage, false, "renderdoc_hotkey",
Category::RendererDebug};
// TODO: remove this once AMDVLK supports VK_EXT_depth_bias_control
bool renderer_amdvlk_depth_bias_workaround{};
// System
SwitchableSetting<Language, true> language_index{linkage,

7
src/core/core.cpp
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@ -381,6 +381,10 @@ struct System::Impl {
room_member->SendGameInfo(game_info);
}
// Workarounds:
// Activate this in Super Smash Brothers Ultimate, it only affects AMD cards using AMDVLK
Settings::values.renderer_amdvlk_depth_bias_workaround = program_id == 0x1006A800016E000ULL;
status = SystemResultStatus::Success;
return status;
}
@ -440,6 +444,9 @@ struct System::Impl {
room_member->SendGameInfo(game_info);
}
// Workarounds
Settings::values.renderer_amdvlk_depth_bias_workaround = false;
LOG_DEBUG(Core, "Shutdown OK");
}

3
src/video_core/renderer_vulkan/vk_rasterizer.cpp
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@ -1050,6 +1050,9 @@ void RasterizerVulkan::UpdateDepthBias(Tegra::Engines::Maxwell3D::Regs& regs) {
if (device.IsExtDepthBiasControlSupported()) {
return true;
}
if (!Settings::values.renderer_amdvlk_depth_bias_workaround) {
return false;
}
// the base formulas can be obtained from here:
// https://docs.microsoft.com/en-us/windows/win32/direct3d11/d3d10-graphics-programming-guide-output-merger-stage-depth-bias
const double rescale_factor =

7
src/video_core/vulkan_common/vulkan_device.cpp
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@ -1051,6 +1051,13 @@ void Device::RemoveUnsuitableExtensions() {
RemoveExtensionFeatureIfUnsuitable(extensions.custom_border_color, features.custom_border_color,
VK_EXT_CUSTOM_BORDER_COLOR_EXTENSION_NAME);
// VK_EXT_depth_bias_control
extensions.depth_bias_control =
features.depth_bias_control.depthBiasControl &&
features.depth_bias_control.leastRepresentableValueForceUnormRepresentation;
RemoveExtensionFeatureIfUnsuitable(extensions.depth_bias_control, features.depth_bias_control,
VK_EXT_DEPTH_BIAS_CONTROL_EXTENSION_NAME);
// VK_EXT_depth_clip_control
extensions.depth_clip_control = features.depth_clip_control.depthClipControl;
RemoveExtensionFeatureIfUnsuitable(extensions.depth_clip_control, features.depth_clip_control,

3
src/video_core/vulkan_common/vulkan_device.h
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@ -456,8 +456,7 @@ public:
/// Returns true if the device supports VK_EXT_depth_bias_control.
bool IsExtDepthBiasControlSupported() const {
return extensions.depth_bias_control && features.depth_bias_control.depthBiasControl &&
features.depth_bias_control.leastRepresentableValueForceUnormRepresentation;
return extensions.depth_bias_control;
}
/// Returns true if the device supports VK_EXT_shader_viewport_index_layer.