gpu: Compositor management of GpuMemoryBuffer instances.

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>
@@ skipping 24 matching lines @@
 
 class GrContext;
 
 namespace gpu {
 namespace gles {
 class GLES2Interface;
 }
 }
 
 namespace gfx {
+class GpuMemoryBuffer;
 class Rect;
 class Vector2d;
 }
 
 namespace cc {
 class BlockingTaskRunner;
+class GpuMemoryBufferManager;
 class IdAllocator;
 class SharedBitmap;
 class SharedBitmapManager;
 class TextureUploader;
 
 // This class is not thread-safe and can only be called from the thread it was
 // created on (in practice, the impl thread).
 class CC_EXPORT ResourceProvider {
  public:
   typedef unsigned ResourceId;
   typedef std::vector<ResourceId> ResourceIdArray;
   typedef std::set<ResourceId> ResourceIdSet;
   typedef base::hash_map<ResourceId, ResourceId> ResourceIdMap;
   enum TextureHint {
     TextureHintDefault = 0x0,
     TextureHintImmutable = 0x1,
     TextureHintFramebuffer = 0x2,
     TextureHintImmutableFramebuffer =
         TextureHintImmutable | TextureHintFramebuffer
   };
   enum ResourceType {
     InvalidType = 0,
     GLTexture = 1,
     Bitmap,
   };
 
   static scoped_ptr<ResourceProvider> Create(
       OutputSurface* output_surface,
       SharedBitmapManager* shared_bitmap_manager,
+      GpuMemoryBufferManager* gpu_memory_buffer_manager,
       BlockingTaskRunner* blocking_main_thread_task_runner,
       int highp_threshold_min,
       bool use_rgba_4444_texture_format,
       size_t id_allocation_chunk_size,
       bool use_distance_field_text);
   virtual ~ResourceProvider();
 
   void InitializeSoftware();
   void InitializeGL();
 
@@ skipping 212 matching lines @@
 
     DISALLOW_COPY_AND_ASSIGN(ScopedWriteLockSoftware);
   };
 
   class CC_EXPORT ScopedWriteLockGpuMemoryBuffer {
    public:
     ScopedWriteLockGpuMemoryBuffer(ResourceProvider* resource_provider,
                                    ResourceProvider::ResourceId resource_id);
     ~ScopedWriteLockGpuMemoryBuffer();
 
-    void* gpu_memory_buffer() { return gpu_memory_buffer_; }
-    int stride() const { return stride_; }
+    gfx::GpuMemoryBuffer* gpu_memory_buffer() { return gpu_memory_buffer_; }
 
    private:
     ResourceProvider* resource_provider_;
     ResourceProvider::ResourceId resource_id_;
-    unsigned image_id_;
-    void* gpu_memory_buffer_;
-    int stride_;
+    gfx::GpuMemoryBuffer* gpu_memory_buffer_;
 
     DISALLOW_COPY_AND_ASSIGN(ScopedWriteLockGpuMemoryBuffer);
   };
 
   class CC_EXPORT ScopedWriteLockGr {
    public:
     ScopedWriteLockGr(ResourceProvider* resource_provider,
                       ResourceProvider::ResourceId resource_id);
     ~ScopedWriteLockGr();
 
@@ skipping 118 matching lines @@
     GLenum filter;
     unsigned image_id;
     unsigned bound_image_id;
     GLenum texture_pool;
     GLint wrap_mode;
     TextureHint hint;
     ResourceType type;
     ResourceFormat format;
     SharedBitmapId shared_bitmap_id;
     SharedBitmap* shared_bitmap;
+    gfx::GpuMemoryBuffer* gpu_memory_buffer;
     skia::RefPtr<SkSurface> sk_surface;
   };
   typedef base::hash_map<ResourceId, Resource> ResourceMap;
 
   static bool CompareResourceMapIteratorsByChildId(
       const std::pair<ReturnedResource, ResourceMap::iterator>& a,
       const std::pair<ReturnedResource, ResourceMap::iterator>& b);
 
   struct Child {
     Child();
     ~Child();
 
     ResourceIdMap child_to_parent_map;
     ResourceIdMap parent_to_child_map;
     ReturnCallback return_callback;
     ResourceIdSet in_use_resources;
     bool marked_for_deletion;
   };
   typedef base::hash_map<int, Child> ChildMap;
 
   bool ReadLockFenceHasPassed(const Resource* resource) {
     return !resource->read_lock_fence.get() ||
            resource->read_lock_fence->HasPassed();
   }
 
   ResourceProvider(OutputSurface* output_surface,
                    SharedBitmapManager* shared_bitmap_manager,
+                   GpuMemoryBufferManager* gpu_memory_buffer_manager,
                    BlockingTaskRunner* blocking_main_thread_task_runner,
                    int highp_threshold_min,
                    bool use_rgba_4444_texture_format,
                    size_t id_allocation_chunk_size,
                    bool use_distance_field_text);
 
   void CleanUpGLIfNeeded();
 
   Resource* GetResource(ResourceId id);
   const Resource* LockForRead(ResourceId id);
@@ skipping 28 matching lines @@
   // specified filter for both minification and magnification. Returns the
   // texture target used. The resource must be locked for reading.
   GLenum BindForSampling(ResourceId resource_id, GLenum unit, GLenum filter);
 
   // Returns NULL if the output_surface_ does not have a ContextProvider.
   gpu::gles2::GLES2Interface* ContextGL() const;
   class GrContext* GrContext() const;
 
   OutputSurface* output_surface_;
   SharedBitmapManager* shared_bitmap_manager_;
+  GpuMemoryBufferManager* gpu_memory_buffer_manager_;
   BlockingTaskRunner* blocking_main_thread_task_runner_;
   bool lost_output_surface_;
   int highp_threshold_min_;
   ResourceId next_id_;
   ResourceMap resources_;
   int next_child_;
   ChildMap children_;
 
   ResourceType default_resource_type_;
   bool use_texture_storage_ext_;
@@ skipping 65 matching lines @@
   return format_gl_data_format[format];
 }
 
 inline GLenum GLInternalFormat(ResourceFormat format) {
   return GLDataFormat(format);
 }
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_RESOURCE_PROVIDER_H_