1 // Copyright 2013 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.
5 #ifndef CC_RESOURCES_UI_RESOURCE_BITMAP_H_
6 #define CC_RESOURCES_UI_RESOURCE_BITMAP_H_
8 #include "base/memory/ref_counted.h"
9 #include "base/memory/scoped_ptr.h"
10 #include "cc/base/cc_export.h"
11 #include "skia/ext/refptr.h"
12 #include "third_party/skia/include/core/SkPixelRef.h"
13 #include "third_party/skia/include/core/SkTypes.h"
14 #include "ui/gfx/size.h"
22 // A bitmap class that contains a ref-counted reference to a SkPixelRef that
23 // holds the content of the bitmap (cannot use SkBitmap because of ETC1).
24 // Thread-safety (by ways of SkPixelRef) ensures that both main and impl threads
25 // can hold references to the bitmap and that asynchronous uploads are allowed.
26 class CC_EXPORT UIResourceBitmap {
28 enum UIResourceFormat {
32 enum UIResourceWrapMode {
37 gfx::Size GetSize() const { return size_; }
38 UIResourceFormat GetFormat() const { return format_; }
39 UIResourceWrapMode GetWrapMode() const { return wrap_mode_; }
40 void SetWrapMode(UIResourceWrapMode wrap_mode) { wrap_mode_ = wrap_mode; }
41 bool GetOpaque() const { return opaque_; }
42 void SetOpaque(bool opaque) { opaque_ = opaque; }
44 // User must ensure that |skbitmap| is immutable. The SkBitmap Format should
46 explicit UIResourceBitmap(const SkBitmap& skbitmap);
47 UIResourceBitmap(const skia::RefPtr<SkPixelRef>& pixel_ref, gfx::Size size);
51 friend class AutoLockUIResourceBitmap;
53 void Create(const skia::RefPtr<SkPixelRef>& pixel_ref,
55 UIResourceFormat format);
57 skia::RefPtr<SkPixelRef> pixel_ref_;
58 UIResourceFormat format_;
59 UIResourceWrapMode wrap_mode_;
64 class CC_EXPORT AutoLockUIResourceBitmap {
66 explicit AutoLockUIResourceBitmap(const UIResourceBitmap& bitmap);
67 ~AutoLockUIResourceBitmap();
68 const uint8_t* GetPixels() const;
71 const UIResourceBitmap& bitmap_;
76 #endif // CC_RESOURCES_UI_RESOURCE_BITMAP_H_