Vulkan: add temporary workaround for AMDVLK

3 files changed, 11 insertions, 2 deletions

diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.cpp b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
index 0201c4d08..59b87807b 100644
--- a/src/video_core/renderer_vulkan/vk_rasterizer.cpp
+++ b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
@@ -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 =
diff --git a/src/video_core/vulkan_common/vulkan_device.cpp b/src/video_core/vulkan_common/vulkan_device.cpp
index 617417040..835a1338b 100644
--- a/src/video_core/vulkan_common/vulkan_device.cpp
+++ b/src/video_core/vulkan_common/vulkan_device.cpp
@@ -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,
diff --git a/src/video_core/vulkan_common/vulkan_device.h b/src/video_core/vulkan_common/vulkan_device.h
index 2063f58b5..eb314fe33 100644
--- a/src/video_core/vulkan_common/vulkan_device.h
+++ b/src/video_core/vulkan_common/vulkan_device.h
@@ -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.