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.
4
5 #include "cc/resources/ui_resource_bitmap.h"
6
7 #include "base/logging.h"
8 #include "base/memory/scoped_ptr.h"
9 #include "cc/resources/etc1_pixel_ref.h"
10 #include "third_party/skia/include/core/SkBitmap.h"
11 #include "third_party/skia/include/core/SkPixelRef.h"
12
13 namespace cc {
14
Create(const skia::RefPtr<SkPixelRef> & pixel_ref,UIResourceFormat format,gfx::Size size)15 void UIResourceBitmap::Create(const skia::RefPtr<SkPixelRef>& pixel_ref,
16 UIResourceFormat format,
17 gfx::Size size) {
18 DCHECK(size.width());
19 DCHECK(size.height());
20 DCHECK(pixel_ref);
21 DCHECK(pixel_ref->isImmutable());
22 format_ = format;
23 size_ = size;
24 pixel_ref_ = pixel_ref;
25
26 // Default values for secondary parameters.
27 wrap_mode_ = CLAMP_TO_EDGE;
28 opaque_ = (format == ETC1);
29 }
30
UIResourceBitmap(const SkBitmap & skbitmap)31 UIResourceBitmap::UIResourceBitmap(const SkBitmap& skbitmap) {
32 DCHECK_EQ(skbitmap.config(), SkBitmap::kARGB_8888_Config);
33 DCHECK_EQ(skbitmap.width(), skbitmap.rowBytesAsPixels());
34 DCHECK(skbitmap.isImmutable());
35
36 skia::RefPtr<SkPixelRef> pixel_ref = skia::SharePtr(skbitmap.pixelRef());
37 Create(pixel_ref,
38 UIResourceBitmap::RGBA8,
39 gfx::Size(skbitmap.width(), skbitmap.height()));
40
41 SetOpaque(skbitmap.isOpaque());
42 }
43
UIResourceBitmap(const skia::RefPtr<ETC1PixelRef> & etc1_pixel_ref,gfx::Size size)44 UIResourceBitmap::UIResourceBitmap(
45 const skia::RefPtr<ETC1PixelRef>& etc1_pixel_ref,
46 gfx::Size size) {
47 Create(etc1_pixel_ref, ETC1, size);
48 }
49
~UIResourceBitmap()50 UIResourceBitmap::~UIResourceBitmap() {}
51
AutoLockUIResourceBitmap(const UIResourceBitmap & bitmap)52 AutoLockUIResourceBitmap::AutoLockUIResourceBitmap(
53 const UIResourceBitmap& bitmap) : bitmap_(bitmap) {
54 bitmap_.pixel_ref_->lockPixels();
55 }
56
~AutoLockUIResourceBitmap()57 AutoLockUIResourceBitmap::~AutoLockUIResourceBitmap() {
58 bitmap_.pixel_ref_->unlockPixels();
59 }
60
GetPixels() const61 const uint8_t* AutoLockUIResourceBitmap::GetPixels() const {
62 return static_cast<const uint8_t*>(bitmap_.pixel_ref_->pixels());
63 }
64
65 } // namespace cc
66