From 7ddc872b529192fd822c1d759ccfac2398b6ca2a Mon Sep 17 00:00:00 2001
From: Subv <subv2112@gmail.com>
Date: Sun, 27 May 2018 09:02:05 -0500
Subject: GPU: Implemented the A1B5G5R5 texture format (0x14)

---
 src/video_core/renderer_opengl/gl_rasterizer_cache.cpp |  7 +++++--
 src/video_core/renderer_opengl/gl_rasterizer_cache.h   | 15 ++++++++++++---
 src/video_core/textures/decoders.cpp                   |  3 +++
 src/video_core/textures/texture.h                      |  1 +
 4 files changed, 21 insertions(+), 5 deletions(-)

(limited to 'src')

diff --git a/src/video_core/renderer_opengl/gl_rasterizer_cache.cpp b/src/video_core/renderer_opengl/gl_rasterizer_cache.cpp
index 501d15e98..e652bd9ed 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer_cache.cpp
+++ b/src/video_core/renderer_opengl/gl_rasterizer_cache.cpp
@@ -47,6 +47,7 @@ static constexpr std::array<FormatTuple, SurfaceParams::MaxPixelFormat> tex_form
     {GL_RGBA8, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, false},                    // ABGR8
     {GL_RGB, GL_RGB, GL_UNSIGNED_SHORT_5_6_5_REV, false},                       // B5G6R5
     {GL_RGB10_A2, GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, false},              // A2B10G10R10
+    {GL_RGB5_A1, GL_RGBA, GL_UNSIGNED_SHORT_1_5_5_5_REV, false},                // A1B5G5R5
     {GL_COMPRESSED_RGB_S3TC_DXT1_EXT, GL_RGB, GL_UNSIGNED_INT_8_8_8_8, true},   // DXT1
     {GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, true}, // DXT23
     {GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, true}, // DXT45
@@ -107,8 +108,9 @@ static constexpr std::array<void (*)(u32, u32, u32, u8*, Tegra::GPUVAddr, Tegra:
                             SurfaceParams::MaxPixelFormat>
     morton_to_gl_fns = {
         MortonCopy<true, PixelFormat::ABGR8>,       MortonCopy<true, PixelFormat::B5G6R5>,
-        MortonCopy<true, PixelFormat::A2B10G10R10>, MortonCopy<true, PixelFormat::DXT1>,
-        MortonCopy<true, PixelFormat::DXT23>,       MortonCopy<true, PixelFormat::DXT45>,
+        MortonCopy<true, PixelFormat::A2B10G10R10>, MortonCopy<true, PixelFormat::A1B5G5R5>,
+        MortonCopy<true, PixelFormat::DXT1>,        MortonCopy<true, PixelFormat::DXT23>,
+        MortonCopy<true, PixelFormat::DXT45>,
 };
 
 static constexpr std::array<void (*)(u32, u32, u32, u8*, Tegra::GPUVAddr, Tegra::GPUVAddr,
@@ -118,6 +120,7 @@ static constexpr std::array<void (*)(u32, u32, u32, u8*, Tegra::GPUVAddr, Tegra:
         MortonCopy<false, PixelFormat::ABGR8>,
         MortonCopy<false, PixelFormat::B5G6R5>,
         MortonCopy<false, PixelFormat::A2B10G10R10>,
+        MortonCopy<false, PixelFormat::A1B5G5R5>,
         // TODO(Subv): Swizzling the DXT1/DXT23/DXT45 formats is not yet supported
         nullptr,
         nullptr,
diff --git a/src/video_core/renderer_opengl/gl_rasterizer_cache.h b/src/video_core/renderer_opengl/gl_rasterizer_cache.h
index 55f1bdee8..03e28f64a 100644
--- a/src/video_core/renderer_opengl/gl_rasterizer_cache.h
+++ b/src/video_core/renderer_opengl/gl_rasterizer_cache.h
@@ -57,9 +57,10 @@ struct SurfaceParams {
         ABGR8 = 0,
         B5G6R5 = 1,
         A2B10G10R10 = 2,
-        DXT1 = 3,
-        DXT23 = 4,
-        DXT45 = 5,
+        A1B5G5R5 = 3,
+        DXT1 = 4,
+        DXT23 = 5,
+        DXT45 = 6,
 
         Max,
         Invalid = 255,
@@ -98,6 +99,7 @@ struct SurfaceParams {
             1, // ABGR8
             1, // B5G6R5
             1, // A2B10G10R10
+            1, // A1B5G5R5
             4, // DXT1
             4, // DXT23
             4, // DXT45
@@ -118,6 +120,7 @@ struct SurfaceParams {
             32,  // ABGR8
             16,  // B5G6R5
             32,  // A2B10G10R10
+            16,  // A1B5G5R5
             64,  // DXT1
             128, // DXT23
             128, // DXT45
@@ -133,6 +136,7 @@ struct SurfaceParams {
     static PixelFormat PixelFormatFromRenderTargetFormat(Tegra::RenderTargetFormat format) {
         switch (format) {
         case Tegra::RenderTargetFormat::RGBA8_UNORM:
+        case Tegra::RenderTargetFormat::RGBA8_SRGB:
             return PixelFormat::ABGR8;
         case Tegra::RenderTargetFormat::RGB10_A2_UNORM:
             return PixelFormat::A2B10G10R10;
@@ -161,6 +165,8 @@ struct SurfaceParams {
             return PixelFormat::B5G6R5;
         case Tegra::Texture::TextureFormat::A2B10G10R10:
             return PixelFormat::A2B10G10R10;
+        case Tegra::Texture::TextureFormat::A1B5G5R5:
+            return PixelFormat::A1B5G5R5;
         case Tegra::Texture::TextureFormat::DXT1:
             return PixelFormat::DXT1;
         case Tegra::Texture::TextureFormat::DXT23:
@@ -182,6 +188,8 @@ struct SurfaceParams {
             return Tegra::Texture::TextureFormat::B5G6R5;
         case PixelFormat::A2B10G10R10:
             return Tegra::Texture::TextureFormat::A2B10G10R10;
+        case PixelFormat::A1B5G5R5:
+            return Tegra::Texture::TextureFormat::A1B5G5R5;
         case PixelFormat::DXT1:
             return Tegra::Texture::TextureFormat::DXT1;
         case PixelFormat::DXT23:
@@ -208,6 +216,7 @@ struct SurfaceParams {
         // TODO(Subv): Implement more render targets
         switch (format) {
         case Tegra::RenderTargetFormat::RGBA8_UNORM:
+        case Tegra::RenderTargetFormat::RGBA8_SRGB:
         case Tegra::RenderTargetFormat::RGB10_A2_UNORM:
             return ComponentType::UNorm;
         default:
diff --git a/src/video_core/textures/decoders.cpp b/src/video_core/textures/decoders.cpp
index 8b39b2bdf..ceb760e0f 100644
--- a/src/video_core/textures/decoders.cpp
+++ b/src/video_core/textures/decoders.cpp
@@ -55,6 +55,7 @@ u32 BytesPerPixel(TextureFormat format) {
     case TextureFormat::A8R8G8B8:
     case TextureFormat::A2B10G10R10:
         return 4;
+    case TextureFormat::A1B5G5R5:
     case TextureFormat::B5G6R5:
         return 2;
     default:
@@ -80,6 +81,7 @@ std::vector<u8> UnswizzleTexture(VAddr address, TextureFormat format, u32 width,
         break;
     case TextureFormat::A8R8G8B8:
     case TextureFormat::A2B10G10R10:
+    case TextureFormat::A1B5G5R5:
     case TextureFormat::B5G6R5:
         CopySwizzledData(width, height, bytes_per_pixel, bytes_per_pixel, data,
                          unswizzled_data.data(), true, block_height);
@@ -103,6 +105,7 @@ std::vector<u8> DecodeTexture(const std::vector<u8>& texture_data, TextureFormat
     case TextureFormat::DXT45:
     case TextureFormat::A8R8G8B8:
     case TextureFormat::A2B10G10R10:
+    case TextureFormat::A1B5G5R5:
     case TextureFormat::B5G6R5:
         // TODO(Subv): For the time being just forward the same data without any decoding.
         rgba_data = texture_data;
diff --git a/src/video_core/textures/texture.h b/src/video_core/textures/texture.h
index dc004d361..b33e9bab3 100644
--- a/src/video_core/textures/texture.h
+++ b/src/video_core/textures/texture.h
@@ -16,6 +16,7 @@ namespace Texture {
 enum class TextureFormat : u32 {
     A8R8G8B8 = 0x8,
     A2B10G10R10 = 0x9,
+    A1B5G5R5 = 0x14,
     B5G6R5 = 0x15,
     DXT1 = 0x24,
     DXT23 = 0x25,
-- 
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