Add decoder for BC6h

src/Device/BC_Decoder.hpp

@@ -23,7 +23,7 @@ public:
 	/// @param dstPitch       dst image pitch (bytes per row)
 	/// @param dstBpp         dst image bytes per pixel
 	/// @param n              n in BCn format
-	/// @param isNoAlphaU     BC1: true if RGB, BC2/BC3: unused, BC4/BC5: true if unsigned
+	/// @param isNoAlphaU     BC1: true if RGB, BC2/BC3: unused, BC4/BC5/BC6H: true if unsigned
 	/// @return               true if the decoding was performed
 
 	static bool Decode(const unsigned char *src, unsigned char *dst, int w, int h, int dstPitch, int dstBpp, int n, bool isNoAlphaU);

src/Vulkan/VkFormat.cpp

@@ -626,7 +626,7 @@ VkFormat Format::getDecompressedFormat() const
 			return VK_FORMAT_R8G8B8A8_SRGB;
 		case VK_FORMAT_BC6H_UFLOAT_BLOCK:
 		case VK_FORMAT_BC6H_SFLOAT_BLOCK:
-			return VK_FORMAT_R32G32B32A32_SFLOAT;
+			return VK_FORMAT_R16G16B16A16_SFLOAT;
 		default:
 			UNSUPPORTED("format: %d", int(format));
 			return VK_FORMAT_UNDEFINED;

src/Vulkan/VkImage.cpp

@@ -91,8 +91,8 @@ int GetBCn(const vk::Format &format)
 }
 
 // Returns true for BC1 if we have an RGB format, false for RGBA
-// Returns true for BC4 and BC5 if we have an unsigned format, false for signed
-// Ignored by BC2, BC3, BC6 and BC7
+// Returns true for BC4, BC5, BC6H if we have an unsigned format, false for signed
+// Ignored by BC2, BC3, and BC7
 bool GetNoAlphaOrUnsigned(const vk::Format &format)
 {
 	switch(format)
@@ -101,6 +101,7 @@ bool GetNoAlphaOrUnsigned(const vk::Format &format)
 		case VK_FORMAT_BC1_RGB_SRGB_BLOCK:
 		case VK_FORMAT_BC4_UNORM_BLOCK:
 		case VK_FORMAT_BC5_UNORM_BLOCK:
+		case VK_FORMAT_BC6H_UFLOAT_BLOCK:
 			return true;
 		case VK_FORMAT_BC1_RGBA_UNORM_BLOCK:
 		case VK_FORMAT_BC1_RGBA_SRGB_BLOCK:
@@ -110,7 +111,6 @@ bool GetNoAlphaOrUnsigned(const vk::Format &format)
 		case VK_FORMAT_BC3_SRGB_BLOCK:
 		case VK_FORMAT_BC4_SNORM_BLOCK:
 		case VK_FORMAT_BC5_SNORM_BLOCK:
-		case VK_FORMAT_BC6H_UFLOAT_BLOCK:
 		case VK_FORMAT_BC6H_SFLOAT_BLOCK:
 		case VK_FORMAT_BC7_SRGB_BLOCK:
 		case VK_FORMAT_BC7_UNORM_BLOCK:

src/Vulkan/VkPhysicalDevice.cpp

@@ -90,7 +90,7 @@ const VkPhysicalDeviceFeatures &PhysicalDevice::getFeatures() const
 #else
 		VK_FALSE,  // textureCompressionASTC_LDR
 #endif
-		VK_FALSE,  // textureCompressionBC
+		VK_TRUE,   // textureCompressionBC
 		VK_FALSE,  // occlusionQueryPrecise
 		VK_FALSE,  // pipelineStatisticsQuery
 		VK_TRUE,   // vertexPipelineStoresAndAtomics
@@ -530,6 +530,8 @@ void PhysicalDevice::getFormatProperties(Format format, VkFormatProperties *pFor
 		case VK_FORMAT_BC4_SNORM_BLOCK:
 		case VK_FORMAT_BC5_UNORM_BLOCK:
 		case VK_FORMAT_BC5_SNORM_BLOCK:
+		case VK_FORMAT_BC6H_UFLOAT_BLOCK:
+		case VK_FORMAT_BC6H_SFLOAT_BLOCK:
 		case VK_FORMAT_BC7_UNORM_BLOCK:
 		case VK_FORMAT_BC7_SRGB_BLOCK:
 		case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK: