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Vulkan: Implement Depth Bias Control

This commit is contained in:
Fernando Sahmkow 2023-08-28 00:54:39 +02:00 committed by Liam
parent 9912704234
commit 6a1ecab2dd
4 changed files with 51 additions and 3 deletions
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25
src/video_core/renderer_vulkan/vk_rasterizer.cpp
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@ -1043,15 +1043,34 @@ void RasterizerVulkan::UpdateDepthBias(Tegra::Engines::Maxwell3D::Regs& regs) {
regs.zeta.format == Tegra::DepthFormat::X8Z24_UNORM ||
regs.zeta.format == Tegra::DepthFormat::S8Z24_UNORM ||
regs.zeta.format == Tegra::DepthFormat::V8Z24_UNORM;
if (is_d24 && !device.SupportsD24DepthBuffer()) {
bool force_unorm = ([&] {
if (!is_d24 || device.SupportsD24DepthBuffer()) {
return false;
}
if (device.IsExtDepthBiasControlSupported()) {
return true;
}
// 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 =
static_cast<double>(1ULL << (32 - 24)) / (static_cast<double>(0x1.ep+127));
units = static_cast<float>(static_cast<double>(units) * rescale_factor);
}
return false;
})();
scheduler.Record([constant = units, clamp = regs.depth_bias_clamp,
factor = regs.slope_scale_depth_bias](vk::CommandBuffer cmdbuf) {
factor = regs.slope_scale_depth_bias, force_unorm,
precise = device.HasExactDepthBiasControl()](vk::CommandBuffer cmdbuf) {
if (force_unorm) {
VkDepthBiasRepresentationInfoEXT info{
.sType = VK_STRUCTURE_TYPE_DEPTH_BIAS_REPRESENTATION_INFO_EXT,
.pNext = nullptr,
.depthBiasRepresentation =
VK_DEPTH_BIAS_REPRESENTATION_LEAST_REPRESENTABLE_VALUE_FORCE_UNORM_EXT,
.depthBiasExact = precise ? VK_TRUE : VK_FALSE,
};
cmdbuf.SetDepthBias(constant, clamp, factor, &info);
return;
}
cmdbuf.SetDepthBias(constant, clamp, factor);
});
}

15
src/video_core/vulkan_common/vulkan_device.h
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@ -41,6 +41,7 @@ VK_DEFINE_HANDLE(VmaAllocator)
// Define all features which may be used by the implementation and require an extension here.
#define FOR_EACH_VK_FEATURE_EXT(FEATURE) \
FEATURE(EXT, CustomBorderColor, CUSTOM_BORDER_COLOR, custom_border_color) \
FEATURE(EXT, DepthBiasControl, DEPTH_BIAS_CONTROL, depth_bias_control) \
FEATURE(EXT, DepthClipControl, DEPTH_CLIP_CONTROL, depth_clip_control) \
FEATURE(EXT, ExtendedDynamicState, EXTENDED_DYNAMIC_STATE, extended_dynamic_state) \
FEATURE(EXT, ExtendedDynamicState2, EXTENDED_DYNAMIC_STATE_2, extended_dynamic_state2) \
@ -93,6 +94,7 @@ VK_DEFINE_HANDLE(VmaAllocator)
// Define extensions where the absence of the extension may result in a degraded experience.
#define FOR_EACH_VK_RECOMMENDED_EXTENSION(EXTENSION_NAME) \
EXTENSION_NAME(VK_EXT_CONSERVATIVE_RASTERIZATION_EXTENSION_NAME) \
EXTENSION_NAME(VK_EXT_DEPTH_BIAS_CONTROL_EXTENSION_NAME) \
EXTENSION_NAME(VK_EXT_DEPTH_RANGE_UNRESTRICTED_EXTENSION_NAME) \
EXTENSION_NAME(VK_EXT_EXTENDED_DYNAMIC_STATE_EXTENSION_NAME) \
EXTENSION_NAME(VK_EXT_EXTENDED_DYNAMIC_STATE_2_EXTENSION_NAME) \
@ -143,6 +145,9 @@ VK_DEFINE_HANDLE(VmaAllocator)
// Define features where the absence of the feature may result in a degraded experience.
#define FOR_EACH_VK_RECOMMENDED_FEATURE(FEATURE_NAME) \
FEATURE_NAME(custom_border_color, customBorderColors) \
FEATURE_NAME(depth_bias_control, depthBiasControl) \
FEATURE_NAME(depth_bias_control, leastRepresentableValueForceUnormRepresentation) \
FEATURE_NAME(depth_bias_control, depthBiasExact) \
FEATURE_NAME(extended_dynamic_state, extendedDynamicState) \
FEATURE_NAME(index_type_uint8, indexTypeUint8) \
FEATURE_NAME(primitive_topology_list_restart, primitiveTopologyListRestart) \
@ -449,6 +454,12 @@ public:
return extensions.depth_clip_control;
}
/// 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;
}
/// Returns true if the device supports VK_EXT_shader_viewport_index_layer.
bool IsExtShaderViewportIndexLayerSupported() const {
return extensions.shader_viewport_index_layer;
@ -600,6 +611,10 @@ public:
return features.robustness2.nullDescriptor;
}
bool HasExactDepthBiasControl() const {
return features.depth_bias_control.depthBiasExact;
}
u32 GetMaxVertexInputAttributes() const {
return properties.properties.limits.maxVertexInputAttributes;
}

1
src/video_core/vulkan_common/vulkan_wrapper.cpp
View File

@ -109,6 +109,7 @@ void Load(VkDevice device, DeviceDispatch& dld) noexcept {
X(vkCmdPushDescriptorSetWithTemplateKHR);
X(vkCmdSetBlendConstants);
X(vkCmdSetDepthBias);
X(vkCmdSetDepthBias2EXT);
X(vkCmdSetDepthBounds);
X(vkCmdSetEvent);
X(vkCmdSetScissor);

13
src/video_core/vulkan_common/vulkan_wrapper.h
View File

@ -222,6 +222,7 @@ struct DeviceDispatch : InstanceDispatch {
PFN_vkCmdSetBlendConstants vkCmdSetBlendConstants{};
PFN_vkCmdSetCullModeEXT vkCmdSetCullModeEXT{};
PFN_vkCmdSetDepthBias vkCmdSetDepthBias{};
PFN_vkCmdSetDepthBias2EXT vkCmdSetDepthBias2EXT{};
PFN_vkCmdSetDepthBounds vkCmdSetDepthBounds{};
PFN_vkCmdSetDepthBoundsTestEnableEXT vkCmdSetDepthBoundsTestEnableEXT{};
PFN_vkCmdSetDepthCompareOpEXT vkCmdSetDepthCompareOpEXT{};
@ -1315,6 +1316,18 @@ public:
dld->vkCmdSetDepthBias(handle, constant_factor, clamp, slope_factor);
}
void SetDepthBias(float constant_factor, float clamp, float slope_factor,
VkDepthBiasRepresentationInfoEXT* extra) const noexcept {
VkDepthBiasInfoEXT info{
.sType = VK_STRUCTURE_TYPE_DEPTH_BIAS_INFO_EXT,
.pNext = extra,
.depthBiasConstantFactor = constant_factor,
.depthBiasClamp = clamp,
.depthBiasSlopeFactor = slope_factor,
};
dld->vkCmdSetDepthBias2EXT(handle, &info);
}
void SetDepthBounds(float min_depth_bounds, float max_depth_bounds) const noexcept {
dld->vkCmdSetDepthBounds(handle, min_depth_bounds, max_depth_bounds);
}