1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
// Copyright 2011 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.
#include "config.h"
#include "cc/bitmap_canvas_layer_updater.h"
#include "cc/layer_painter.h"
#include "cc/resource_update.h"
#include "cc/texture_update_queue.h"
#include "skia/ext/platform_canvas.h"
namespace cc {
BitmapCanvasLayerUpdater::Resource::Resource(BitmapCanvasLayerUpdater* updater, scoped_ptr<PrioritizedTexture> texture)
: LayerUpdater::Resource(texture.Pass())
, m_updater(updater)
{
}
BitmapCanvasLayerUpdater::Resource::~Resource()
{
}
void BitmapCanvasLayerUpdater::Resource::update(TextureUpdateQueue& queue, const IntRect& sourceRect, const IntSize& destOffset, bool partialUpdate, RenderingStats&)
{
updater()->updateTexture(queue, texture(), sourceRect, destOffset, partialUpdate);
}
scoped_refptr<BitmapCanvasLayerUpdater> BitmapCanvasLayerUpdater::create(scoped_ptr<LayerPainter> painter)
{
return make_scoped_refptr(new BitmapCanvasLayerUpdater(painter.Pass()));
}
BitmapCanvasLayerUpdater::BitmapCanvasLayerUpdater(scoped_ptr<LayerPainter> painter)
: CanvasLayerUpdater(painter.Pass())
, m_opaque(false)
{
}
BitmapCanvasLayerUpdater::~BitmapCanvasLayerUpdater()
{
}
scoped_ptr<LayerUpdater::Resource> BitmapCanvasLayerUpdater::createResource(PrioritizedTextureManager* manager)
{
return scoped_ptr<LayerUpdater::Resource>(new Resource(this, PrioritizedTexture::create(manager)));
}
void BitmapCanvasLayerUpdater::prepareToUpdate(const IntRect& contentRect, const IntSize& tileSize, float contentsWidthScale, float contentsHeightScale, IntRect& resultingOpaqueRect, RenderingStats& stats)
{
if (m_canvasSize != contentRect.size()) {
m_canvasSize = contentRect.size();
m_canvas = make_scoped_ptr(skia::CreateBitmapCanvas(m_canvasSize.width(), m_canvasSize.height(), m_opaque));
}
paintContents(m_canvas.get(), contentRect, contentsWidthScale, contentsHeightScale, resultingOpaqueRect, stats);
}
void BitmapCanvasLayerUpdater::updateTexture(TextureUpdateQueue& queue, PrioritizedTexture* texture, const IntRect& sourceRect, const IntSize& destOffset, bool partialUpdate)
{
ResourceUpdate upload = ResourceUpdate::Create(
texture,
&m_canvas->getDevice()->accessBitmap(false),
contentRect(),
sourceRect,
destOffset);
if (partialUpdate)
queue.appendPartialUpload(upload);
else
queue.appendFullUpload(upload);
}
void BitmapCanvasLayerUpdater::setOpaque(bool opaque)
{
if (opaque != m_opaque) {
m_canvas.reset();
m_canvasSize = IntSize();
}
m_opaque = opaque;
}
} // namespace cc
|
