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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
/*
Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "TextureMapperQt.h"
#include <QtCore/qdebug.h>
#include <QtGui/qpaintengine.h>
#include <QtGui/qpixmap.h>
#ifdef QT_OPENGL_LIB
# include "opengl/TextureMapperGL.h"
#endif
namespace WebCore {
void BitmapTextureQt::destroy()
{
if (m_pixmap.paintingActive())
qFatal("Destroying an active pixmap");
m_pixmap = QPixmap();
}
void BitmapTextureQt::reset(const IntSize& size, bool isOpaque)
{
BitmapTexture::reset(size, isOpaque);
if (size.width() > m_pixmap.size().width() || size.height() > m_pixmap.size().height() || m_pixmap.isNull())
m_pixmap = QPixmap(size.width(), size.height());
if (!isOpaque)
m_pixmap.fill(Qt::transparent);
}
PlatformGraphicsContext* BitmapTextureQt::beginPaint(const IntRect& dirtyRect)
{
m_painter.begin(&m_pixmap);
TextureMapperQt::initialize(&m_painter);
m_painter.setCompositionMode(QPainter::CompositionMode_Clear);
m_painter.fillRect(QRect(dirtyRect), Qt::transparent);
m_painter.setCompositionMode(QPainter::CompositionMode_SourceOver);
return &m_painter;
}
void BitmapTextureQt::endPaint()
{
m_painter.end();
}
bool BitmapTextureQt::save(const String& path)
{
return m_pixmap.save(path, "PNG");
}
void BitmapTextureQt::setContentsToImage(Image* image)
{
if (!image)
return;
const QPixmap* pixmap = image->nativeImageForCurrentFrame();
if (!pixmap)
return;
BitmapTexture::reset(pixmap->size(), !pixmap->hasAlphaChannel());
m_pixmap = *pixmap;
}
void BitmapTextureQt::pack()
{
if (m_pixmap.isNull())
return;
m_image = m_pixmap.toImage();
m_pixmap = QPixmap();
m_isPacked = true;
}
void BitmapTextureQt::unpack()
{
m_isPacked = false;
if (m_image.isNull())
return;
m_pixmap = QPixmap::fromImage(m_image);
m_image = QImage();
}
void TextureMapperQt::setClip(const IntRect& rect)
{
QPainter* painter = m_currentSurface ? &m_currentSurface->m_painter : m_painter;
painter->setClipRect(rect);
}
TextureMapperQt::TextureMapperQt()
: m_currentSurface(0)
{
}
void TextureMapperQt::setGraphicsContext(GraphicsContext* context)
{
m_painter = context->platformContext();
initialize(m_painter);
}
void TextureMapperQt::bindSurface(BitmapTexture* surface)
{
if (m_currentSurface == surface)
return;
if (m_currentSurface)
m_currentSurface->m_painter.end();
if (!surface) {
m_currentSurface = 0;
return;
}
BitmapTextureQt* surfaceQt = static_cast<BitmapTextureQt*>(surface);
if (!surfaceQt->m_painter.isActive())
surfaceQt->m_painter.begin(&surfaceQt->m_pixmap);
m_currentSurface = surfaceQt;
}
void TextureMapperQt::drawTexture(const BitmapTexture& texture, const IntRect& targetRect, const TransformationMatrix& matrix, float opacity, const BitmapTexture* maskTexture)
{
const BitmapTextureQt& textureQt = static_cast<const BitmapTextureQt&>(texture);
QPainter* painter = m_painter;
QPixmap pixmap = textureQt.m_pixmap;
if (m_currentSurface)
painter = &m_currentSurface->m_painter;
if (maskTexture && maskTexture->isValid()) {
const BitmapTextureQt* mask = static_cast<const BitmapTextureQt*>(maskTexture);
QPixmap intermediatePixmap(pixmap.size());
intermediatePixmap.fill(Qt::transparent);
QPainter maskPainter(&intermediatePixmap);
maskPainter.setCompositionMode(QPainter::CompositionMode_Source);
maskPainter.drawPixmap(0, 0, pixmap);
maskPainter.setCompositionMode(QPainter::CompositionMode_DestinationIn);
maskPainter.drawPixmap(QRect(0, 0, pixmap.width(), pixmap.height()), mask->m_pixmap, mask->sourceRect());
maskPainter.end();
pixmap = intermediatePixmap;
}
const qreal prevOpacity = painter->opacity();
const QTransform prevTransform = painter->transform();
painter->setOpacity(opacity);
painter->setTransform(matrix, true);
painter->drawPixmap(targetRect, pixmap, textureQt.sourceRect());
painter->setTransform(prevTransform);
painter->setOpacity(prevOpacity);
}
PassOwnPtr<TextureMapper> TextureMapper::create(GraphicsContext* context)
{
#ifdef QT_OPENGL_LIB
if (context && context->platformContext()->paintEngine()->type() == QPaintEngine::OpenGL2)
return new TextureMapperGL;
#endif
return new TextureMapperQt;
}
PassRefPtr<BitmapTexture> TextureMapperQt::createTexture()
{
return adoptRef(new BitmapTextureQt());
}
BitmapTextureQt::BitmapTextureQt()
: m_isPacked(false)
{
}
#ifdef QT_OPENGL_LIB
class RGBA32PremultimpliedBufferQt : public RGBA32PremultimpliedBuffer {
public:
virtual PlatformGraphicsContext* beginPaint(const IntRect& rect, bool opaque)
{
// m_image is only using during paint, it's safe to override it.
m_image = QImage(rect.size().width(), rect.size().height(), QImage::Format_ARGB32_Premultiplied);
if (!opaque)
m_image.fill(0);
m_painter.begin(&m_image);
TextureMapperQt::initialize(&m_painter);
m_painter.translate(-rect.x(), -rect.y());
return &m_painter;
}
virtual void endPaint() { m_painter.end(); }
virtual const void* data() const { return m_image.constBits(); }
private:
QPainter m_painter;
QImage m_image;
};
PassRefPtr<RGBA32PremultimpliedBuffer> RGBA32PremultimpliedBuffer::create()
{
return adoptRef(new RGBA32PremultimpliedBufferQt());
}
#endif
};
|
