1 /*
2 * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20 #include "config.h"
21 #include "ImageDecoder.h"
22
23 #include "IntRect.h"
24 #include "IntSize.h"
25 #include "SurfaceOpenVG.h"
26 #include "TiledImageOpenVG.h"
27 #include "VGUtils.h"
28
29 #if PLATFORM(EGL)
30 #include "EGLDisplayOpenVG.h"
31 #endif
32
33 #include <openvg.h>
34
35 namespace WebCore {
36
asNewNativeImage() const37 NativeImagePtr ImageFrame::asNewNativeImage() const
38 {
39 static const VGImageFormat bufferFormat = VG_sARGB_8888_PRE;
40 // Save memory by using 16-bit images for fully opaque images.
41 const VGImageFormat imageFormat = hasAlpha() ? bufferFormat : VG_sRGB_565;
42
43 #if PLATFORM(EGL)
44 EGLDisplayOpenVG::current()->sharedPlatformSurface()->makeCurrent();
45 #endif
46
47 const IntSize vgMaxImageSize(vgGeti(VG_MAX_IMAGE_WIDTH), vgGeti(VG_MAX_IMAGE_HEIGHT));
48 ASSERT_VG_NO_ERROR();
49
50 TiledImageOpenVG* tiledImage = new TiledImageOpenVG(IntSize(width(), height()), vgMaxImageSize);
51
52 const int numColumns = tiledImage->numColumns();
53 const int numRows = tiledImage->numRows();
54
55 for (int yIndex = 0; yIndex < numRows; ++yIndex) {
56 for (int xIndex = 0; xIndex < numColumns; ++xIndex) {
57 IntRect tileRect = tiledImage->tileRect(xIndex, yIndex);
58 VGImage image = vgCreateImage(imageFormat,
59 tileRect.width(), tileRect.height(), VG_IMAGE_QUALITY_FASTER);
60 ASSERT_VG_NO_ERROR();
61
62 PixelData* pixelData = const_cast<PixelData*>(m_bytes);
63 pixelData += (tileRect.y() * width()) + tileRect.x();
64
65 vgImageSubData(image, reinterpret_cast<unsigned char*>(pixelData),
66 width() * sizeof(PixelData), bufferFormat,
67 0, 0, tileRect.width(), tileRect.height());
68 ASSERT_VG_NO_ERROR();
69
70 tiledImage->setTile(xIndex, yIndex, image);
71 }
72 }
73
74 return tiledImage;
75 }
76
77 }
78