Tile Compression

cc/resources/resource_provider.h

 // Copyright 2012 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_RESOURCES_RESOURCE_PROVIDER_H_
 #define CC_RESOURCES_RESOURCE_PROVIDER_H_
 
 #include <deque>
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/containers/hash_tables.h"
 #include "base/memory/linked_ptr.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/threading/thread_checker.h"
 #include "cc/base/cc_export.h"
+#include "cc/base/tile_compression_method.h"
 #include "cc/output/context_provider.h"
 #include "cc/output/output_surface.h"
 #include "cc/resources/release_callback_impl.h"
 #include "cc/resources/resource_format.h"
 #include "cc/resources/return_callback.h"
 #include "cc/resources/shared_bitmap.h"
 #include "cc/resources/single_release_callback_impl.h"
 #include "cc/resources/texture_mailbox.h"
 #include "cc/resources/transferable_resource.h"
 #include "third_party/khronos/GLES2/gl2.h"
@@ skipping 48 matching lines @@
     Bitmap,
   };
 
   static scoped_ptr<ResourceProvider> Create(
       OutputSurface* output_surface,
       SharedBitmapManager* shared_bitmap_manager,
       gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
       BlockingTaskRunner* blocking_main_thread_task_runner,
       int highp_threshold_min,
       bool use_rgba_4444_texture_format,
+      bool use_texture_compression,
       size_t id_allocation_chunk_size);
   virtual ~ResourceProvider();
 
   void InitializeSoftware();
   void InitializeGL();
 
   void DidLoseOutputSurface() { lost_output_surface_ = true; }
 
   int max_texture_size() const { return max_texture_size_; }
-  ResourceFormat memory_efficient_texture_format() const {
-    return use_rgba_4444_texture_format_ ? RGBA_4444 : best_texture_format_;
-  }
+  ResourceFormat memory_efficient_texture_format(
+      ResourceFormatUsage usage) const;
   ResourceFormat best_texture_format() const { return best_texture_format_; }
   ResourceFormat yuv_resource_format() const { return yuv_resource_format_; }
   bool use_sync_query() const { return use_sync_query_; }
   size_t num_resources() const { return resources_.size(); }
 
   // Checks whether a resource is in use by a consumer.
   bool InUseByConsumer(ResourceId id);
 
   bool IsLost(ResourceId id);
   bool AllowOverlay(ResourceId id);
@@ skipping 30 matching lines @@
   ResourceId CreateResourceFromIOSurface(const gfx::Size& size,
                                          unsigned io_surface_id);
 
   // Wraps an external texture mailbox into a GL resource.
   ResourceId CreateResourceFromTextureMailbox(
       const TextureMailbox& mailbox,
       scoped_ptr<SingleReleaseCallbackImpl> release_callback_impl);
 
   void DeleteResource(ResourceId id);
 
+  void set_preferred_tile_compression_method(TileCompressionMethod method) {
+    preferred_tile_compression_method_ = method;
+  }
+
   // Update pixels from image, copying source_rect (in image) to dest_offset (in
   // the resource).
   void SetPixels(ResourceId id,
                  const uint8_t* image,
                  const gfx::Rect& image_rect,
                  const gfx::Rect& source_rect,
                  const gfx::Vector2d& dest_offset);
 
   // Check upload status.
   size_t NumBlockingUploads();
@@ skipping 285 matching lines @@
              const gfx::Size& size,
              Origin origin,
              GLenum filter,
              GLint wrap_mode);
     Resource(const SharedBitmapId& bitmap_id,
              const gfx::Size& size,
              Origin origin,
              GLenum filter,
              GLint wrap_mode);
 
+    bool IsCompressed() const;
+    size_t CompressedSize() const;
+
     int child_id;
     unsigned gl_id;
     // Pixel buffer used for set pixels without unnecessary copying.
     unsigned gl_pixel_buffer_id;
     // Query used to determine when asynchronous set pixels complete.
     unsigned gl_upload_query_id;
     // Query used to determine when read lock fence has passed.
     unsigned gl_read_lock_query_id;
     TextureMailbox mailbox;
     ReleaseCallbackImpl release_callback_impl;
@@ skipping 52 matching lines @@
     return !resource->read_lock_fence.get() ||
            resource->read_lock_fence->HasPassed();
   }
 
   ResourceProvider(OutputSurface* output_surface,
                    SharedBitmapManager* shared_bitmap_manager,
                    gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
                    BlockingTaskRunner* blocking_main_thread_task_runner,
                    int highp_threshold_min,
                    bool use_rgba_4444_texture_format,
+                   bool use_texture_compression,
                    size_t id_allocation_chunk_size);
 
   void CleanUpGLIfNeeded();
 
   Resource* GetResource(ResourceId id);
   const Resource* LockForRead(ResourceId id);
   void UnlockForRead(ResourceId id);
   Resource* LockForWrite(ResourceId id);
   void UnlockForWrite(Resource* resource);
 
@@ skipping 33 matching lines @@
   int highp_threshold_min_;
   ResourceId next_id_;
   ResourceMap resources_;
   int next_child_;
   ChildMap children_;
 
   ResourceType default_resource_type_;
   bool use_texture_storage_ext_;
   bool use_texture_format_bgra_;
   bool use_texture_usage_hint_;
+  bool use_compressed_texture_atc_;
+  bool use_compressed_texture_dxt_;
   bool use_compressed_texture_etc1_;
   ResourceFormat yuv_resource_format_;
   scoped_ptr<TextureUploader> texture_uploader_;
   int max_texture_size_;
   ResourceFormat best_texture_format_;
 
   base::ThreadChecker thread_checker_;
 
   scoped_refptr<Fence> current_read_lock_fence_;
   bool use_rgba_4444_texture_format_;
+  bool use_texture_compression_;
+  TileCompressionMethod preferred_tile_compression_method_;
 
   const size_t id_allocation_chunk_size_;
   scoped_ptr<IdAllocator> texture_id_allocator_;
   scoped_ptr<IdAllocator> buffer_id_allocator_;
 
   bool use_sync_query_;
   // Fence used for CopyResource if CHROMIUM_sync_query is not supported.
   scoped_refptr<SynchronousFence> synchronous_fence_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceProvider);
 };
 
 // TODO(epenner): Move these format conversions to resource_format.h
 // once that builds on mac (npapi.h currently #includes OpenGL.h).
 inline unsigned BitsPerPixel(ResourceFormat format) {
-  switch (format) {
-    case BGRA_8888:
-    case RGBA_8888:
-      return 32;
-    case RGBA_4444:
-    case RGB_565:
-      return 16;
-    case ALPHA_8:
-    case LUMINANCE_8:
-    case RED_8:
-      return 8;
-    case ETC1:
-      return 4;
-  }
-  NOTREACHED();
-  return 0;
+  DCHECK_LE(format, RESOURCE_FORMAT_MAX);
+  static const unsigned format_bits_per_pixel[RESOURCE_FORMAT_MAX + 1] = {
+      32,  // RGBA_8888
+      16,  // RGBA_4444
+      32,  // BGRA_8888
+      8,   // ALPHA_8
+      8,   // LUMINANCE_8
+      16,  // RGB_565,
+      4,   // ATC
+      8,   // ATC_IA
+      4,   // DXT1
+      8,   // DXT5
+      4,   // ETC1
+      8    // RED_8
+  };
+  return format_bits_per_pixel[format];
 }
 
 inline GLenum GLDataType(ResourceFormat format) {
   DCHECK_LE(format, RESOURCE_FORMAT_MAX);
   static const unsigned format_gl_data_type[RESOURCE_FORMAT_MAX + 1] = {
       GL_UNSIGNED_BYTE,           // RGBA_8888
       GL_UNSIGNED_SHORT_4_4_4_4,  // RGBA_4444
       GL_UNSIGNED_BYTE,           // BGRA_8888
       GL_UNSIGNED_BYTE,           // ALPHA_8
       GL_UNSIGNED_BYTE,           // LUMINANCE_8
       GL_UNSIGNED_SHORT_5_6_5,    // RGB_565,
+      GL_UNSIGNED_BYTE,           // ATC
+      GL_UNSIGNED_BYTE,           // ATC_IA
+      GL_UNSIGNED_BYTE,           // DXT1
+      GL_UNSIGNED_BYTE,           // DXT5
       GL_UNSIGNED_BYTE,           // ETC1
       GL_UNSIGNED_BYTE            // RED_8
   };
   return format_gl_data_type[format];
 }
 
 inline GLenum GLDataFormat(ResourceFormat format) {
   DCHECK_LE(format, RESOURCE_FORMAT_MAX);
   static const unsigned format_gl_data_format[RESOURCE_FORMAT_MAX + 1] = {
-      GL_RGBA,           // RGBA_8888
-      GL_RGBA,           // RGBA_4444
-      GL_BGRA_EXT,       // BGRA_8888
-      GL_ALPHA,          // ALPHA_8
-      GL_LUMINANCE,      // LUMINANCE_8
-      GL_RGB,            // RGB_565
-      GL_ETC1_RGB8_OES,  // ETC1
-      GL_RED_EXT         // RED_8
+      GL_RGBA,                             // RGBA_8888
+      GL_RGBA,                             // RGBA_4444
+      GL_BGRA_EXT,                         // BGRA_8888
+      GL_ALPHA,                            // ALPHA_8
+      GL_LUMINANCE,                        // LUMINANCE_8
+      GL_RGB,                              // RGB_565
+      GL_ATC_RGB_AMD,                      // ATC
+      GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD,  // ATC_IA
+      GL_COMPRESSED_RGB_S3TC_DXT1_EXT,     // DXT1
+      GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE,  // DXT5
+      GL_ETC1_RGB8_OES,                    // ETC1
+      GL_RED_EXT                           // RED_8
   };
   return format_gl_data_format[format];
 }
 
 inline GLenum GLInternalFormat(ResourceFormat format) {
   return GLDataFormat(format);
 }
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_RESOURCE_PROVIDER_H_