The great shader refactor: Add YUV support to the uber shader

cc/output/program_binding.h

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_OUTPUT_PROGRAM_BINDING_H_
 #define CC_OUTPUT_PROGRAM_BINDING_H_
 
 #include <string>
 
 #include "base/logging.h"
@@ skipping 74 matching lines @@
   static ProgramKey RenderPass(TexCoordPrecision precision,
                                SamplerType sampler,
                                BlendMode blend_mode,
                                AAMode aa_mode,
                                MaskMode mask_mode,
                                bool mask_for_background,
                                bool has_color_matrix);
   static ProgramKey VideoStream(TexCoordPrecision precision);
   static ProgramKey YUVVideo(TexCoordPrecision precision,
                              SamplerType sampler,
-                             bool use_alpha_texture,
-                             bool use_nv12,
-                             bool use_color_lut);
+                             YUVAlphaTextureMode yuv_alpha_texture_mode,
+                             UVTextureMode uv_texture_mode,
+                             ColorConversionMode color_conversion_mode);
 
   bool operator==(const ProgramKey& other) const;
 
  private:
   ProgramKey();
   friend struct ProgramKeyHash;
   friend class Program;
 
   ProgramType type_ = PROGRAM_TYPE_DEBUG_BORDER;
   TexCoordPrecision precision_ = TEX_COORD_PRECISION_NA;
   SamplerType sampler_ = SAMPLER_TYPE_NA;
   BlendMode blend_mode_ = BLEND_MODE_NONE;
   AAMode aa_mode_ = NO_AA;
   SwizzleMode swizzle_mode_ = NO_SWIZZLE;
   bool is_opaque_ = false;
 
   PremultipliedAlphaMode premultiplied_alpha_ = PREMULTIPLIED_ALPHA;
   bool has_background_color_ = false;
 
   MaskMode mask_mode_ = NO_MASK;
   bool mask_for_background_ = false;
   bool has_color_matrix_ = false;
 
-  bool use_alpha_texture_ = false;
-  bool use_nv12_ = false;
-  bool use_color_lut_ = false;
+  YUVAlphaTextureMode yuv_alpha_texture_mode_ = YUV_NO_ALPHA_TEXTURE;
+  UVTextureMode uv_texture_mode_ = UV_TEXTURE_MODE_NA;
+
+  ColorConversionMode color_conversion_mode_ = COLOR_CONVERSION_MODE_NONE;
 };
 
 struct ProgramKeyHash {
   size_t operator()(const ProgramKey& key) const {
     return (static_cast<size_t>(key.type_) << 0) ^
            (static_cast<size_t>(key.precision_) << 3) ^
            (static_cast<size_t>(key.sampler_) << 6) ^
            (static_cast<size_t>(key.blend_mode_) << 9) ^
            (static_cast<size_t>(key.aa_mode_) << 15) ^
            (static_cast<size_t>(key.swizzle_mode_) << 16) ^
            (static_cast<size_t>(key.is_opaque_) << 17) ^
            (static_cast<size_t>(key.premultiplied_alpha_) << 19) ^
            (static_cast<size_t>(key.has_background_color_) << 20) ^
            (static_cast<size_t>(key.mask_mode_) << 21) ^
            (static_cast<size_t>(key.mask_for_background_) << 22) ^
            (static_cast<size_t>(key.has_color_matrix_) << 23) ^
-           (static_cast<size_t>(key.use_alpha_texture_) << 24) ^
-           (static_cast<size_t>(key.use_nv12_) << 25) ^
-           (static_cast<size_t>(key.use_color_lut_) << 26);
+           (static_cast<size_t>(key.yuv_alpha_texture_mode_) << 24) ^
+           (static_cast<size_t>(key.uv_texture_mode_) << 25) ^
+           (static_cast<size_t>(key.color_conversion_mode_) << 26);
   }
 };
 
 class Program : public ProgramBindingBase {
  public:
   Program() {}
 
   void Initialize(ContextProvider* context_provider, const ProgramKey& key) {
     // Set parameters that are common to all sub-classes.
     vertex_shader_.aa_mode_ = key.aa_mode_;
@@ skipping 224 matching lines @@
     vertex_shader_.has_matrix_ = true;
     DCHECK_EQ(key.sampler_, SAMPLER_TYPE_EXTERNAL_OES);
   }
 
   void InitializeYUVVideo(const ProgramKey& key) {
     vertex_shader_.tex_coord_source_ = TEX_COORD_SOURCE_ATTRIBUTE;
     vertex_shader_.has_matrix_ = true;
     vertex_shader_.is_ya_uv_ = true;
 
     fragment_shader_.input_color_type_ = INPUT_COLOR_SOURCE_YUV_TEXTURES;
-    fragment_shader_.use_alpha_texture_ = key.use_alpha_texture_;
-    fragment_shader_.use_nv12_ = key.use_nv12_;
-    fragment_shader_.use_color_lut_ = key.use_color_lut_;
+    fragment_shader_.has_uniform_alpha_ = true;
+    fragment_shader_.yuv_alpha_texture_mode_ = key.yuv_alpha_texture_mode_;
+    fragment_shader_.uv_texture_mode_ = key.uv_texture_mode_;
+    fragment_shader_.color_conversion_mode_ = key.color_conversion_mode_;
   }
 
   void InitializeInternal(ContextProvider* context_provider) {
     DCHECK(context_provider);
     DCHECK(!initialized_);
 
     if (IsContextLost(context_provider->ContextGL()))
       return;
 
     if (!ProgramBindingBase::Init(context_provider->ContextGL(),
@@ skipping 20 matching lines @@
 
   VertexShader vertex_shader_;
   FragmentShader fragment_shader_;
 
   DISALLOW_COPY_AND_ASSIGN(Program);
 };
 
 }  // namespace cc
 
 #endif  // CC_OUTPUT_PROGRAM_BINDING_H_