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
|
/*
* Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.
*
* 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 "ImageDecoder.h"
#include "IntRect.h"
#include "IntSize.h"
#include "SurfaceOpenVG.h"
#include "TiledImageOpenVG.h"
#include "VGUtils.h"
#if PLATFORM(EGL)
#include "EGLDisplayOpenVG.h"
#endif
#include <openvg.h>
namespace WebCore {
NativeImagePtr ImageFrame::asNewNativeImage() const
{
static const VGImageFormat bufferFormat = VG_sARGB_8888_PRE;
// Save memory by using 16-bit images for fully opaque images.
const VGImageFormat imageFormat = hasAlpha() ? bufferFormat : VG_sRGB_565;
#if PLATFORM(EGL)
EGLDisplayOpenVG::current()->sharedPlatformSurface()->makeCurrent();
#endif
const IntSize vgMaxImageSize(vgGeti(VG_MAX_IMAGE_WIDTH), vgGeti(VG_MAX_IMAGE_HEIGHT));
ASSERT_VG_NO_ERROR();
TiledImageOpenVG* tiledImage = new TiledImageOpenVG(IntSize(width(), height()), vgMaxImageSize);
const int numColumns = tiledImage->numColumns();
const int numRows = tiledImage->numRows();
for (int yIndex = 0; yIndex < numRows; ++yIndex) {
for (int xIndex = 0; xIndex < numColumns; ++xIndex) {
IntRect tileRect = tiledImage->tileRect(xIndex, yIndex);
VGImage image = vgCreateImage(imageFormat,
tileRect.width(), tileRect.height(), VG_IMAGE_QUALITY_FASTER);
ASSERT_VG_NO_ERROR();
PixelData* pixelData = const_cast<PixelData*>(m_bytes);
pixelData += (tileRect.y() * width()) + tileRect.x();
vgImageSubData(image, reinterpret_cast<unsigned char*>(pixelData),
width() * sizeof(PixelData), bufferFormat,
0, 0, tileRect.width(), tileRect.height());
ASSERT_VG_NO_ERROR();
tiledImage->setTile(xIndex, yIndex, image);
}
}
return tiledImage;
}
}
|
