VideoCore: Implement formats needed for N64 emulation.

src/video_core/renderer_opengl/maxwell_to_gl.h

@@ -87,7 +87,7 @@ constexpr std::array<FormatTuple, VideoCore::Surface::MaxPixelFormat> FORMAT_TAB
     {GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT},                         // BC3_SRGB
     {GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM},                            // BC7_SRGB
     {GL_RGBA4, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4_REV},               // A4B4G4R4_UNORM
-    {GL_R8, GL_RED, GL_UNSIGNED_BYTE},                                // R4G4_UNORM
+    {GL_R8, GL_RED, GL_UNSIGNED_BYTE},                                // G4R4_UNORM
     {GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR},                        // ASTC_2D_4X4_SRGB
     {GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR},                        // ASTC_2D_8X8_SRGB
     {GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR},                        // ASTC_2D_8X5_SRGB

src/video_core/renderer_vulkan/maxwell_to_vk.cpp

@@ -184,7 +184,7 @@ struct FormatTuple {
     {VK_FORMAT_BC3_SRGB_BLOCK},                                // BC3_SRGB
     {VK_FORMAT_BC7_SRGB_BLOCK},                                // BC7_SRGB
     {VK_FORMAT_R4G4B4A4_UNORM_PACK16, Attachable},             // A4B4G4R4_UNORM
-    {VK_FORMAT_R4G4_UNORM_PACK8},                              // R4G4_UNORM
+    {VK_FORMAT_R4G4_UNORM_PACK8},                              // G4R4_UNORM
     {VK_FORMAT_ASTC_4x4_SRGB_BLOCK},                           // ASTC_2D_4X4_SRGB
     {VK_FORMAT_ASTC_8x8_SRGB_BLOCK},                           // ASTC_2D_8X8_SRGB
     {VK_FORMAT_ASTC_8x5_SRGB_BLOCK},                           // ASTC_2D_8X5_SRGB

src/video_core/renderer_vulkan/vk_texture_cache.cpp

@@ -592,7 +592,7 @@ void TryTransformSwizzleIfNeeded(PixelFormat format, std::array<SwizzleSource, 4
     case PixelFormat::A5B5G5R1_UNORM:
         std::ranges::transform(swizzle, swizzle.begin(), SwapSpecial);
         break;
-    case PixelFormat::R4G4_UNORM:
+    case PixelFormat::G4R4_UNORM:
         std::ranges::transform(swizzle, swizzle.begin(), SwapGreenRed);
         break;
     default:

src/video_core/surface.h

@@ -82,7 +82,7 @@ enum class PixelFormat {
     BC3_SRGB,
     BC7_SRGB,
     A4B4G4R4_UNORM,
-    R4G4_UNORM,
+    G4R4_UNORM,
     ASTC_2D_4X4_SRGB,
     ASTC_2D_8X8_SRGB,
     ASTC_2D_8X5_SRGB,
@@ -218,7 +218,7 @@ constexpr std::array<u8, MaxPixelFormat> BLOCK_WIDTH_TABLE = {{
     4,  // BC3_SRGB
     4,  // BC7_SRGB
     1,  // A4B4G4R4_UNORM
-    1,  // R4G4_UNORM
+    1,  // G4R4_UNORM
     4,  // ASTC_2D_4X4_SRGB
     8,  // ASTC_2D_8X8_SRGB
     8,  // ASTC_2D_8X5_SRGB
@@ -323,7 +323,7 @@ constexpr std::array<u8, MaxPixelFormat> BLOCK_HEIGHT_TABLE = {{
     4,  // BC3_SRGB
     4,  // BC7_SRGB
     1,  // A4B4G4R4_UNORM
-    1,  // R4G4_UNORM
+    1,  // G4R4_UNORM
     4,  // ASTC_2D_4X4_SRGB
     8,  // ASTC_2D_8X8_SRGB
     5,  // ASTC_2D_8X5_SRGB
@@ -428,7 +428,7 @@ constexpr std::array<u8, MaxPixelFormat> BITS_PER_BLOCK_TABLE = {{
     128, // BC3_SRGB
     128, // BC7_UNORM
     16,  // A4B4G4R4_UNORM
-    8,   // R4G4_UNORM
+    8,   // G4R4_UNORM
     128, // ASTC_2D_4X4_SRGB
     128, // ASTC_2D_8X8_SRGB
     128, // ASTC_2D_8X5_SRGB

src/video_core/texture_cache/format_lookup_table.cpp

@@ -63,7 +63,7 @@ PixelFormat PixelFormatFromTextureInfo(TextureFormat format, ComponentType red,
     case Hash(TextureFormat::A4B4G4R4, UNORM):
         return PixelFormat::A4B4G4R4_UNORM;
     case Hash(TextureFormat::G4R4, UNORM):
-        return PixelFormat::R4G4_UNORM;
+        return PixelFormat::G4R4_UNORM;
     case Hash(TextureFormat::A5B5G5R1, UNORM):
         return PixelFormat::A5B5G5R1_UNORM;
     case Hash(TextureFormat::R8, UNORM):

src/video_core/texture_cache/formatter.h

@@ -153,8 +153,8 @@ struct fmt::formatter<VideoCore::Surface::PixelFormat> : fmt::formatter<fmt::str
                 return "BC7_SRGB";
             case PixelFormat::A4B4G4R4_UNORM:
                 return "A4B4G4R4_UNORM";
-            case PixelFormat::R4G4_UNORM:
-                return "R4G4_UNORM";
+            case PixelFormat::G4R4_UNORM:
+                return "G4R4_UNORM";
             case PixelFormat::ASTC_2D_4X4_SRGB:
                 return "ASTC_2D_4X4_SRGB";
             case PixelFormat::ASTC_2D_8X8_SRGB: