VideoBackends: Add support flag for compute shaders

Source/Core/VideoBackends/D3D/main.cpp

@@ -67,6 +67,7 @@ void VideoBackend::InitBackendInfo()
   g_Config.backend_info.bSupportsPrimitiveRestart = true;
   g_Config.backend_info.bSupportsOversizedViewports = false;
   g_Config.backend_info.bSupportsGeometryShaders = true;
+  g_Config.backend_info.bSupportsComputeShaders = false;
   g_Config.backend_info.bSupports3DVision = true;
   g_Config.backend_info.bSupportsPostProcessing = false;
   g_Config.backend_info.bSupportsPaletteConversion = true;

Source/Core/VideoBackends/D3D12/main.cpp

@@ -70,6 +70,7 @@ void VideoBackend::InitBackendInfo()
   g_Config.backend_info.bSupportsPrimitiveRestart = true;
   g_Config.backend_info.bSupportsOversizedViewports = false;
   g_Config.backend_info.bSupportsGeometryShaders = true;
+  g_Config.backend_info.bSupportsComputeShaders = false;
   g_Config.backend_info.bSupports3DVision = true;
   g_Config.backend_info.bSupportsPostProcessing = false;
   g_Config.backend_info.bSupportsPaletteConversion = true;

Source/Core/VideoBackends/Null/NullBackend.cpp

@@ -30,6 +30,7 @@ void VideoBackend::InitBackendInfo()
   g_Config.backend_info.bSupportsPrimitiveRestart = true;
   g_Config.backend_info.bSupportsOversizedViewports = true;
   g_Config.backend_info.bSupportsGeometryShaders = true;
+  g_Config.backend_info.bSupportsComputeShaders = false;
   g_Config.backend_info.bSupports3DVision = false;
   g_Config.backend_info.bSupportsEarlyZ = true;
   g_Config.backend_info.bSupportsBindingLayout = true;

Source/Core/VideoBackends/OGL/main.cpp

@@ -101,6 +101,7 @@ void VideoBackend::InitBackendInfo()
   g_Config.backend_info.bSupportsExclusiveFullscreen = false;
   g_Config.backend_info.bSupportsOversizedViewports = true;
   g_Config.backend_info.bSupportsGeometryShaders = true;
+  g_Config.backend_info.bSupportsComputeShaders = false;
   g_Config.backend_info.bSupports3DVision = false;
   g_Config.backend_info.bSupportsPostProcessing = true;
   g_Config.backend_info.bSupportsSSAA = true;

Source/Core/VideoBackends/Software/SWmain.cpp

@@ -131,6 +131,7 @@ void VideoSoftware::InitBackendInfo()
   g_Config.backend_info.bSupportsOversizedViewports = true;
   g_Config.backend_info.bSupportsPrimitiveRestart = false;
   g_Config.backend_info.bSupportsMultithreading = false;
+  g_Config.backend_info.bSupportsComputeShaders = false;
   g_Config.backend_info.bSupportsInternalResolutionFrameDumps = false;
 
   // aamodes

Source/Core/VideoBackends/Vulkan/VulkanContext.cpp

@@ -244,6 +244,7 @@ void VulkanContext::PopulateBackendInfo(VideoConfig* config)
   config->backend_info.bSupportsSSAA = false;                         // Dependent on features.
   config->backend_info.bSupportsDepthClamp = false;                   // Dependent on features.
   config->backend_info.bSupportsReversedDepthRange = false;  // No support yet due to driver bugs.
+  config->backend_info.bSupportsComputeShaders = false;       // No support yet.
 }
 
 void VulkanContext::PopulateBackendInfoAdapters(VideoConfig* config, const GPUList& gpu_list)

Source/Core/VideoCommon/VideoConfig.h

@@ -181,6 +181,7 @@ struct VideoConfig final
     bool bSupportsPrimitiveRestart;
     bool bSupportsOversizedViewports;
     bool bSupportsGeometryShaders;
+    bool bSupportsComputeShaders;
     bool bSupports3DVision;
     bool bSupportsEarlyZ;         // needed by PixelShaderGen, so must stay in VideoCommon
     bool bSupportsBindingLayout;  // Needed by ShaderGen, so must stay in VideoCommon