Support DXVK #7575
Description
DXVK (from Steam Runtime 1.0) requires the following:
info: Device properties:
info: Device name: : Virtio-GPU Venus (Apple M4 Pro)
info: Driver version : 25.3.2
info: Enabled device extensions:
info: VK_EXT_extended_dynamic_state3
info: VK_EXT_fragment_shader_interlock
info: VK_EXT_robustness2
info: VK_EXT_shader_stencil_export
info: VK_EXT_vertex_attribute_divisor
info: VK_KHR_swapchain
info: Device features:
info: robustBufferAccess : 1
info: fullDrawIndexUint32 : 1
info: imageCubeArray : 1
info: independentBlend : 1
info: geometryShader : 1
info: tessellationShader : 0
info: sampleRateShading : 1
info: dualSrcBlend : 0
info: logicOp : 0
info: multiDrawIndirect : 0
info: drawIndirectFirstInstance : 0
info: depthClamp : 1
info: depthBiasClamp : 1
info: fillModeNonSolid : 1
info: depthBounds : 0
info: multiViewport : 1
info: samplerAnisotropy : 1
info: textureCompressionBC : 1
info: occlusionQueryPrecise : 1
info: pipelineStatisticsQuery : 0
info: vertexPipelineStoresAndAtomics : 1
info: fragmentStoresAndAtomics : 0
info: shaderImageGatherExtended : 0
info: shaderClipDistance : 1
info: shaderCullDistance : 1
info: shaderFloat64 : 0
info: shaderInt64 : 0
info: variableMultisampleRate : 0
info: shaderResourceResidency : 0
info: shaderResourceMinLod : 0
info: sparseBinding : 0
info: sparseResidencyBuffer : 0
info: sparseResidencyImage2D : 0
info: sparseResidencyImage3D : 0
info: sparseResidency2Samples : 0
info: sparseResidency4Samples : 0
info: sparseResidency8Samples : 0
info: sparseResidency16Samples : 0
info: sparseResidencyAliased : 0
info: Vulkan 1.1
info: shaderDrawParameters : 0
info: Vulkan 1.2
info: samplerMirrorClampToEdge : 1
info: drawIndirectCount : 0
info: samplerFilterMinmax : 0
info: hostQueryReset : 1
info: timelineSemaphore : 1
info: bufferDeviceAddress : 0
info: shaderOutputViewportIndex : 1
info: shaderOutputLayer : 1
info: vulkanMemoryModel : 1
info: Vulkan 1.3
info: robustImageAccess : 0
info: pipelineCreationCacheControl : 1
info: shaderDemoteToHelperInvocation : 1
info: shaderZeroInitializeWorkgroupMemory : 0
info: synchronization2 : 1
info: dynamicRendering : 1
info: VK_AMD_shader_fragment_mask
info: extension supported : 0
info: VK_EXT_attachment_feedback_loop_layout
info: attachmentFeedbackLoopLayout : 0
info: VK_EXT_conservative_rasterization
info: extension supported : 0
info: VK_EXT_custom_border_color
info: customBorderColors : 0
info: customBorderColorWithoutFormat : 0
info: VK_EXT_depth_clip_enable
info: depthClipEnable : 0
info: VK_EXT_extended_dynamic_state3
info: extendedDynamicState3DepthClipEnable : 0
info: VK_EXT_fragment_shader_interlock
info: fragmentShaderSampleInterlock : 0
info: fragmentShaderPixelInterlock : 0
info: VK_EXT_full_screen_exclusive
info: extension supported : 0
info: VK_EXT_graphics_pipeline_library
info: graphicsPipelineLibrary : 0
info: VK_EXT_memory_budget
info: extension supported : 0
info: VK_EXT_memory_priority
info: memoryPriority : 0
info: VK_EXT_non_seamless_cube_map
info: nonSeamlessCubeMap : 0
info: VK_EXT_robustness2
info: robustBufferAccess2 : 1
info: robustImageAccess2 : 1
info: nullDescriptor : 1
info: VK_EXT_shader_module_identifier
info: shaderModuleIdentifier : 0
info: VK_EXT_shader_stencil_export
info: extension supported : 1
info: VK_EXT_transform_feedback
info: transformFeedback : 0
info: geometryStreams : 0
info: VK_EXT_vertex_attribute_divisor
info: vertexAttributeInstanceRateDivisor : 1
info: vertexAttributeInstanceRateZeroDivisor : 1
info: VK_KHR_external_memory_win32
info: extension supported : 0
info: VK_KHR_external_semaphore_win32
info: extension supported : 0
info: VK_NVX_binary_import
info: extension supported : 0
info: VK_NVX_image_view_handle
info: extension supported : 0
info: Queue families:
info: Graphics : 0
info: Transfer : 0
info: Sparse : n/a
From upstream MoltenVK, we are missing the following:
info: geometryShader : 1
info: shaderCullDistance : 1
nfo: VK_EXT_robustness2
info: robustBufferAccess2 : 1
info: nullDescriptor : 1
CrossOvers has both geometryShader and shaderCullDistance implemented but is based off an older version MoltenVK which only supports Vulkan 1.2 (latest Proton requires Vulkan 1.3). We can try to merge the changes to main: https://github.com/utmapp/MoltenVK/tree/crossovers/v25.1.0
Alternatively, we can build CrossOvers' DXVK for Linux as the pair is "known" to work. However, the downside is that it requires a custom install and this makes maintaining a pain.