Implement BC6H_UF16 & BC6H_SF16 (#1092)

* Implement BC6H_UF16 & BC6H_SF16
Require by ARMS

* correct coding style

* correct coding style part 2

src/video_core/renderer_opengl/gl_rasterizer_cache.cpp

@@ -121,6 +121,10 @@ static constexpr std::array<FormatTuple, SurfaceParams::MaxPixelFormat> tex_form
     {GL_COMPRESSED_SIGNED_RG_RGTC2, GL_RG, GL_INT, ComponentType::SNorm, true}, // DXN2SNORM
     {GL_COMPRESSED_RGBA_BPTC_UNORM_ARB, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, ComponentType::UNorm,
      true}, // BC7U
+    {GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_ARB, GL_RGB, GL_UNSIGNED_INT_8_8_8_8,
+     ComponentType::UNorm, true}, // BC6H_UF16
+    {GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB, GL_RGB, GL_UNSIGNED_INT_8_8_8_8, ComponentType::UNorm,
+     true},                                                                    // BC6H_SF16
     {GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE, ComponentType::UNorm, false},        // ASTC_2D_4X4
     {GL_RG8, GL_RG, GL_UNSIGNED_BYTE, ComponentType::UNorm, false},            // G8R8U
     {GL_RG8, GL_RG, GL_BYTE, ComponentType::SNorm, false},                     // G8R8S
@@ -210,6 +214,8 @@ static bool IsFormatBCn(PixelFormat format) {
     case PixelFormat::DXN2SNORM:
     case PixelFormat::DXN2UNORM:
     case PixelFormat::BC7U:
+    case PixelFormat::BC6H_UF16:
+    case PixelFormat::BC6H_SF16:
         return true;
     }
     return false;
@@ -266,6 +272,8 @@ static constexpr std::array<void (*)(u32, u32, u32, std::vector<u8>&, Tegra::GPU
         MortonCopy<true, PixelFormat::DXN2UNORM>,
         MortonCopy<true, PixelFormat::DXN2SNORM>,
         MortonCopy<true, PixelFormat::BC7U>,
+        MortonCopy<true, PixelFormat::BC6H_UF16>,
+        MortonCopy<true, PixelFormat::BC6H_SF16>,
         MortonCopy<true, PixelFormat::ASTC_2D_4X4>,
         MortonCopy<true, PixelFormat::G8R8U>,
         MortonCopy<true, PixelFormat::G8R8S>,
@@ -314,8 +322,10 @@ static constexpr std::array<void (*)(u32, u32, u32, std::vector<u8>&, Tegra::GPU
         MortonCopy<false, PixelFormat::RGBA16UI>,
         MortonCopy<false, PixelFormat::R11FG11FB10F>,
         MortonCopy<false, PixelFormat::RGBA32UI>,
-        // TODO(Subv): Swizzling DXT1/DXT23/DXT45/DXN1/DXN2/BC7U/ASTC_2D_4X4 formats is not
-        // supported
+        // TODO(Subv): Swizzling DXT1/DXT23/DXT45/DXN1/DXN2/BC7U/BC6H_UF16/BC6H_SF16/ASTC_2D_4X4
+        // formats are not supported
+        nullptr,
+        nullptr,
         nullptr,
         nullptr,
         nullptr,

src/video_core/renderer_opengl/gl_rasterizer_cache.h

@@ -45,42 +45,44 @@ struct SurfaceParams {
         DXN2UNORM = 17,
         DXN2SNORM = 18,
         BC7U = 19,
-        ASTC_2D_4X4 = 20,
-        G8R8U = 21,
-        G8R8S = 22,
-        BGRA8 = 23,
-        RGBA32F = 24,
-        RG32F = 25,
-        R32F = 26,
-        R16F = 27,
-        R16U = 28,
-        R16S = 29,
-        R16UI = 30,
-        R16I = 31,
-        RG16 = 32,
-        RG16F = 33,
-        RG16UI = 34,
-        RG16I = 35,
-        RG16S = 36,
-        RGB32F = 37,
-        SRGBA8 = 38,
-        RG8U = 39,
-        RG8S = 40,
-        RG32UI = 41,
-        R32UI = 42,
+        BC6H_UF16 = 20,
+        BC6H_SF16 = 21,
+        ASTC_2D_4X4 = 22,
+        G8R8U = 23,
+        G8R8S = 24,
+        BGRA8 = 25,
+        RGBA32F = 26,
+        RG32F = 27,
+        R32F = 28,
+        R16F = 29,
+        R16U = 30,
+        R16S = 31,
+        R16UI = 32,
+        R16I = 33,
+        RG16 = 34,
+        RG16F = 35,
+        RG16UI = 36,
+        RG16I = 37,
+        RG16S = 38,
+        RGB32F = 39,
+        SRGBA8 = 40,
+        RG8U = 41,
+        RG8S = 42,
+        RG32UI = 43,
+        R32UI = 44,
 
         MaxColorFormat,
 
         // Depth formats
-        Z32F = 43,
-        Z16 = 44,
+        Z32F = 45,
+        Z16 = 46,
 
         MaxDepthFormat,
 
         // DepthStencil formats
-        Z24S8 = 45,
-        S8Z24 = 46,
-        Z32FS8 = 47,
+        Z24S8 = 47,
+        S8Z24 = 48,
+        Z32FS8 = 49,
 
         MaxDepthStencilFormat,
 
@@ -138,6 +140,8 @@ struct SurfaceParams {
             4, // DXN2UNORM
             4, // DXN2SNORM
             4, // BC7U
+            4, // BC6H_UF16
+            4, // BC6H_SF16
             4, // ASTC_2D_4X4
             1, // G8R8U
             1, // G8R8S
@@ -197,6 +201,8 @@ struct SurfaceParams {
             128, // DXN2UNORM
             128, // DXN2SNORM
             128, // BC7U
+            128, // BC6H_UF16
+            128, // BC6H_SF16
             32,  // ASTC_2D_4X4
             16,  // G8R8U
             16,  // G8R8S
@@ -482,6 +488,10 @@ struct SurfaceParams {
             UNREACHABLE();
         case Tegra::Texture::TextureFormat::BC7U:
             return PixelFormat::BC7U;
+        case Tegra::Texture::TextureFormat::BC6H_UF16:
+            return PixelFormat::BC6H_UF16;
+        case Tegra::Texture::TextureFormat::BC6H_SF16:
+            return PixelFormat::BC6H_SF16;
         case Tegra::Texture::TextureFormat::ASTC_2D_4X4:
             return PixelFormat::ASTC_2D_4X4;
         case Tegra::Texture::TextureFormat::R16_G16:

src/video_core/textures/decoders.cpp

@@ -56,6 +56,8 @@ u32 BytesPerPixel(TextureFormat format) {
     case TextureFormat::DXT45:
     case TextureFormat::DXN2:
     case TextureFormat::BC7U:
+    case TextureFormat::BC6H_UF16:
+    case TextureFormat::BC6H_SF16:
         // In this case a 'pixel' actually refers to a 4x4 tile.
         return 16;
     case TextureFormat::R32_G32_B32:
@@ -106,6 +108,8 @@ std::vector<u8> DecodeTexture(const std::vector<u8>& texture_data, TextureFormat
     case TextureFormat::DXN1:
     case TextureFormat::DXN2:
     case TextureFormat::BC7U:
+    case TextureFormat::BC6H_UF16:
+    case TextureFormat::BC6H_SF16:
     case TextureFormat::ASTC_2D_4X4:
     case TextureFormat::A8R8G8B8:
     case TextureFormat::A2B10G10R10: