Add PixelFormat::NV12

Source/Engine/Graphics/PixelFormat.h

@@ -558,6 +558,11 @@ API_ENUM() enum class PixelFormat : uint32
     /// </summary>
     YUY2 = 108,
 
+    /// <summary>
+    /// Packed YUV 4:2:0 video texture format. Texture uses separate views to access the luma (Y) plane separately from the chroma (UV) planes. For luminance data view, the mapping to the view channel is Y->R8. For chrominance data view, the mapping to the view channel is U->R8 and V->G8.
+    /// </summary>
+    NV12 = 109,
+
     /// <summary>
     /// The maximum format value (for internal use only).
     /// </summary>

Source/Engine/Graphics/PixelFormatExtensions.cpp

@@ -150,6 +150,8 @@ void PixelFormatExtensions::Init()
         PixelFormat::BC4_UNorm,
     };
     InitFormat(formats8, 4);
+
+    sizeOfInBits[(int32)PixelFormat::NV12] = 12;
 }
 
 int32 PixelFormatExtensions::SizeInBits(PixelFormat format)
@@ -379,6 +381,7 @@ bool PixelFormatExtensions::IsVideo(const PixelFormat format)
     switch (format)
     {
     case PixelFormat::YUY2:
+    case PixelFormat::NV12:
         return true;
     default:
         return false;

Source/Engine/Graphics/RenderTools.cpp

@@ -349,6 +349,10 @@ void RenderTools::ComputePitch(PixelFormat format, int32 width, int32 height, ui
         rowPitch = ((width + 1) >> 1) * 4;
         slicePitch = rowPitch * height;
         break;
+    case PixelFormat::NV12:
+        rowPitch = width;
+        slicePitch = width * height * 3 / 2;
+        break;
     default:
         // Default byte alignment
         rowPitch = (width * PixelFormatExtensions::SizeInBits(format) + 7) / 8;

Source/Engine/GraphicsDevice/DirectX/RenderToolsDX.cpp

@@ -9,7 +9,7 @@
 
 // @formatter:off
 
-DXGI_FORMAT PixelFormatToDXGIFormat[109] =
+DXGI_FORMAT PixelFormatToDXGIFormat[110] =
 {
     DXGI_FORMAT_UNKNOWN,
     DXGI_FORMAT_R32G32B32A32_TYPELESS,
@@ -120,6 +120,7 @@ DXGI_FORMAT PixelFormatToDXGIFormat[109] =
     DXGI_FORMAT_UNKNOWN, // ASTC_10x10_UNorm
     DXGI_FORMAT_UNKNOWN, // ASTC_10x10_UNorm_sRGB
     DXGI_FORMAT_YUY2,
+    DXGI_FORMAT_NV12,
 };
 
 // @formatter:on

Source/Engine/GraphicsDevice/Vulkan/RenderToolsVulkan.cpp

@@ -8,7 +8,7 @@
 
 // @formatter:off
 
-VkFormat RenderToolsVulkan::PixelFormatToVkFormat[109] =
+VkFormat RenderToolsVulkan::PixelFormatToVkFormat[110] =
 {
     VK_FORMAT_UNDEFINED,
     VK_FORMAT_R32G32B32A32_SFLOAT,
@@ -119,6 +119,7 @@ VkFormat RenderToolsVulkan::PixelFormatToVkFormat[109] =
     VK_FORMAT_ASTC_10x10_UNORM_BLOCK,
     VK_FORMAT_ASTC_10x10_SRGB_BLOCK,
     VK_FORMAT_G8B8G8R8_422_UNORM, // YUY2
+    VK_FORMAT_G8_B8R8_2PLANE_420_UNORM, // NV12
 };
 
 VkBlendFactor RenderToolsVulkan::BlendToVkBlendFactor[20] =

Source/Engine/Video/MF/VideoBackendMF.cpp

@@ -96,6 +96,8 @@ namespace MF
                 player.Format = PixelFormat::B5G6R5_UNorm;
             else if (subtype == MFVideoFormat_RGB555)
                 player.Format = PixelFormat::B5G5R5A1_UNorm;
+            else if (subtype == MFVideoFormat_NV12)
+                player.Format = PixelFormat::NV12;
             else if (subtype == MFVideoFormat_YUY2)
                 player.Format = PixelFormat::YUY2;
 #if (WDK_NTDDI_VERSION >= NTDDI_WIN10)