video_core: Fix B5G6R5_UNORM render target format

src/video_core/morton.cpp

@@ -46,6 +46,7 @@ static constexpr ConversionArray morton_to_linear_fns = {
     MortonCopy<true, PixelFormat::ABGR8I>,
     MortonCopy<true, PixelFormat::ABGR8UI>,
     MortonCopy<true, PixelFormat::B5G6R5U>,
+    MortonCopy<true, PixelFormat::B5G5R5A1U>,
     MortonCopy<true, PixelFormat::A2B10G10R10U>,
     MortonCopy<true, PixelFormat::A2B10G10R10UI>,
     MortonCopy<true, PixelFormat::A1B5G5R5U>,
@@ -137,6 +138,7 @@ static constexpr ConversionArray linear_to_morton_fns = {
     MortonCopy<false, PixelFormat::ABGR8I>,
     MortonCopy<false, PixelFormat::ABGR8UI>,
     MortonCopy<false, PixelFormat::B5G6R5U>,
+    MortonCopy<false, PixelFormat::B5G5R5A1U>,
     MortonCopy<false, PixelFormat::A2B10G10R10U>,
     MortonCopy<false, PixelFormat::A2B10G10R10UI>,
     MortonCopy<false, PixelFormat::A1B5G5R5U>,

src/video_core/renderer_opengl/gl_texture_cache.cpp

@@ -46,6 +46,7 @@ constexpr std::array<FormatTuple, VideoCore::Surface::MaxPixelFormat> tex_format
     {GL_RGBA8I, GL_RGBA_INTEGER, GL_BYTE},                            // ABGR8I
     {GL_RGBA8UI, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE},                  // ABGR8UI
     {GL_RGB565, GL_RGB, GL_UNSIGNED_SHORT_5_6_5},                     // B5G6R5U
+    {GL_RGB5_A1, GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5_REV},             // B5G5R5A1U
     {GL_RGB10_A2, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV},           // A2B10G10R10U
     {GL_RGB10_A2UI, GL_RGBA_INTEGER, GL_UNSIGNED_INT_2_10_10_10_REV}, // A2B10G10R10UI
     {GL_RGB5_A1, GL_RGBA, GL_UNSIGNED_SHORT_1_5_5_5_REV},             // A1B5G5R5U

src/video_core/renderer_vulkan/maxwell_to_vk.cpp

@@ -122,6 +122,7 @@ struct FormatTuple {
     {VK_FORMAT_A8B8G8R8_SINT_PACK32, Attachable | Storage},     // ABGR8I
     {VK_FORMAT_A8B8G8R8_UINT_PACK32, Attachable | Storage},     // ABGR8UI
     {VK_FORMAT_R5G6B5_UNORM_PACK16, Attachable},                // B5G6R5U
+    {VK_FORMAT_A1R5G5B5_UNORM_PACK16, Attachable},              // B5G5R5A1U
     {VK_FORMAT_A2B10G10R10_UNORM_PACK32, Attachable | Storage}, // A2B10G10R10U
     {VK_FORMAT_A2B10G10R10_UINT_PACK32, Attachable | Storage},  // A2B10G10R10UI
     {VK_FORMAT_A1R5G5B5_UNORM_PACK16, Attachable},              // A1B5G5R5U (flipped with swizzle)

src/video_core/surface.cpp

@@ -155,7 +155,7 @@ PixelFormat PixelFormatFromRenderTargetFormat(Tegra::RenderTargetFormat format)
     case Tegra::RenderTargetFormat::B5G6R5_UNORM:
         return PixelFormat::B5G6R5U;
     case Tegra::RenderTargetFormat::BGR5A1_UNORM:
-        return PixelFormat::A1B5G5R5U;
+        return PixelFormat::B5G5R5A1U;
     case Tegra::RenderTargetFormat::RG8_UNORM:
         return PixelFormat::RG8U;
     case Tegra::RenderTargetFormat::RG8_SNORM:

src/video_core/surface.h

@@ -20,6 +20,7 @@ enum class PixelFormat {
     ABGR8I,
     ABGR8UI,
     B5G6R5U,
+    B5G5R5A1U,
     A2B10G10R10U,
     A2B10G10R10UI,
     A1B5G5R5U,
@@ -143,6 +144,7 @@ constexpr std::array<u32, MaxPixelFormat> compression_factor_shift_table = {{
     0, // ABGR8I
     0, // ABGR8UI
     0, // B5G6R5U
+    0, // B5G5R5A1U
     0, // A2B10G10R10U
     0, // A2B10G10R10UI
     0, // A1B5G5R5U
@@ -250,6 +252,7 @@ constexpr std::array<u32, MaxPixelFormat> block_width_table = {{
     1,  // ABGR8I
     1,  // ABGR8UI
     1,  // B5G6R5U
+    1,  // B5G5R5A1U
     1,  // A2B10G10R10U
     1,  // A2B10G10R10UI
     1,  // A1B5G5R5U
@@ -349,6 +352,7 @@ constexpr std::array<u32, MaxPixelFormat> block_height_table = {{
     1,  // ABGR8I
     1,  // ABGR8UI
     1,  // B5G6R5U
+    1,  // B5G5R5A1U
     1,  // A2B10G10R10U
     1,  // A2B10G10R10UI
     1,  // A1B5G5R5U
@@ -448,6 +452,7 @@ constexpr std::array<u32, MaxPixelFormat> bpp_table = {{
     32,  // ABGR8I
     32,  // ABGR8UI
     16,  // B5G6R5U
+    16,  // B5G5R5A1U
     32,  // A2B10G10R10U
     32,  // A2B10G10R10UI
     16,  // A1B5G5R5U