cc/resources/resource.h

   1 // Copyright 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CC_RESOURCES_RESOURCE_H_
   6 #define CC_RESOURCES_RESOURCE_H_
   7
   8 #include "cc/base/cc_export.h"
   9 #include "cc/resources/resource_provider.h"
  10 #include "third_party/khronos/GLES2/gl2.h"
  11 #include "ui/gfx/size.h"
  12
  13 namespace cc {
  14
  15 class CC_EXPORT Resource {
  16  public:
  17   Resource() : id_(0) {}
  18   Resource(unsigned id, const gfx::Size& size, ResourceFormat format)
  19       : id_(id),
  20         size_(size),
  21         format_(format) {}
  22
  23   ResourceProvider::ResourceId id() const { return id_; }
  24   gfx::Size size() const { return size_; }
  25   ResourceFormat format() const { return format_; }
  26   size_t bytes() const;
  27
  28   inline static size_t MemorySizeBytes(const gfx::Size& size,
  29                                        ResourceFormat format) {
  30     DCHECK_EQ(0u, (BitsPerPixel(format) * size.width() * size.height()) % 8);
  31     return (BitsPerPixel(format) * size.width() * size.height()) / 8;
  32   }
  33
  34  protected:
  35   void set_id(ResourceProvider::ResourceId id) { id_ = id; }
  36   void set_dimensions(const gfx::Size& size, ResourceFormat format) {
  37     size_ = size;
  38     format_ = format;
  39   }
  40
  41  private:
  42   ResourceProvider::ResourceId id_;
  43   gfx::Size size_;
  44   ResourceFormat format_;
  45
  46   DISALLOW_COPY_AND_ASSIGN(Resource);
  47 };
  48
  49 }  // namespace cc
  50
  51 #endif  // CC_RESOURCES_RESOURCE_H_