ImageDecoderOpenVG.cpp [plain text]
#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;
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;
}
}