vulkan updates

WickedEngine/wiGraphicsDevice.cpp

@@ -34,3 +34,33 @@ bool GraphicsDevice::CheckCapability(GRAPHICSDEVICE_CAPABILITY capability)
 	}
 	return false;
 }
+
+uint32_t GraphicsDevice::GetFormatStride(FORMAT value)
+{
+	switch (value)
+	{
+	case FORMAT_R32G32B32A32_FLOAT:
+		return 16;
+		break;
+	case FORMAT_R32G32_FLOAT:
+		return 8;
+		break;
+	case FORMAT_R16G16_FLOAT:
+	case FORMAT_R32_FLOAT:
+	case FORMAT_R32_UINT:
+	case FORMAT_R8G8B8A8_UINT:
+	case FORMAT_R8G8B8A8_SINT:
+	case FORMAT_R8G8B8A8_UNORM:
+	case FORMAT_R8G8B8A8_SNORM:
+		return 4;
+		break;
+	case FORMAT_R16_FLOAT:
+		return 2;
+		break;
+	}
+
+	// TODO more formats
+
+	return 16;
+}
+

WickedEngine/wiGraphicsDevice.h

@@ -63,7 +63,6 @@ namespace wiGraphicsTypes
 
 
 		virtual void SetResolution(int width, int height) = 0;
-		
 
 		virtual Texture2D GetBackBuffer() = 0;
 
@@ -78,6 +77,8 @@ namespace wiGraphicsTypes
 		};
 		bool CheckCapability(GRAPHICSDEVICE_CAPABILITY capability);
 
+		uint32_t GetFormatStride(FORMAT value);
+
 		XMMATRIX GetScreenProjection()
 		{
 			return XMMatrixOrthographicOffCenterLH(0, (float)GetScreenWidth(), (float)GetScreenHeight(), 0, -1, 1);