diff options
Diffstat (limited to 'src/gui/painting/qcoregraphics.mm')
| -rw-r--r-- | src/gui/painting/qcoregraphics.mm | 48 |
1 files changed, 33 insertions, 15 deletions
diff --git a/src/gui/painting/qcoregraphics.mm b/src/gui/painting/qcoregraphics.mm index d45da14767..53066687d3 100644 --- a/src/gui/painting/qcoregraphics.mm +++ b/src/gui/painting/qcoregraphics.mm @@ -51,6 +51,33 @@ QT_BEGIN_NAMESPACE // ---------------------- Images ---------------------- +CGBitmapInfo qt_mac_bitmapInfoForImage(const QImage &image) +{ + CGBitmapInfo bitmapInfo = kCGImageAlphaNone; + switch (image.format()) { + case QImage::Format_ARGB32: + bitmapInfo = kCGImageAlphaFirst | kCGBitmapByteOrder32Host; + break; + case QImage::Format_RGB32: + bitmapInfo = kCGImageAlphaNoneSkipFirst | kCGBitmapByteOrder32Host; + break; + case QImage::Format_RGBA8888_Premultiplied: + bitmapInfo = kCGImageAlphaPremultipliedLast | kCGBitmapByteOrder32Big; + break; + case QImage::Format_RGBA8888: + bitmapInfo = kCGImageAlphaLast | kCGBitmapByteOrder32Big; + break; + case QImage::Format_RGBX8888: + bitmapInfo = kCGImageAlphaNoneSkipLast | kCGBitmapByteOrder32Big; + break; + case QImage::Format_ARGB32_Premultiplied: + bitmapInfo = kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host; + break; + default: break; + } + return bitmapInfo; +} + CGImageRef qt_mac_toCGImage(const QImage &inImage) { CGImageRef cgImage = inImage.toCGImage(); @@ -362,13 +389,10 @@ QMacCGContext::QMacCGContext(QPaintDevice *paintDevice) : context(0) if (!image) return; // Context type not supported. - CGColorSpaceRef colorSpace = CGColorSpaceCreateWithName(kCGColorSpaceSRGB); - uint flags = kCGImageAlphaPremultipliedFirst; - flags |= kCGBitmapByteOrder32Host; + QCFType<CGColorSpaceRef> colorSpace = CGColorSpaceCreateWithName(kCGColorSpaceSRGB); + context = CGBitmapContextCreate(image->bits(), image->width(), image->height(), 8, + image->bytesPerLine(), colorSpace, qt_mac_bitmapInfoForImage(*image)); - context = CGBitmapContextCreate(image->bits(), image->width(), image->height(), - 8, image->bytesPerLine(), colorSpace, flags); - CFRelease(colorSpace); CGContextTranslateCTM(context, 0, image->height()); const qreal devicePixelRatio = paintDevice->devicePixelRatioF(); CGContextScaleCTM(context, devicePixelRatio, devicePixelRatio); @@ -396,16 +420,10 @@ QMacCGContext::QMacCGContext(QPainter *painter) : context(0) devType == QInternal::Pixmap || devType == QInternal::Image)) { - CGColorSpaceRef colorSpace = CGColorSpaceCreateWithName(kCGColorSpaceSRGB); - uint flags = kCGImageAlphaPremultipliedFirst; -#ifdef kCGBitmapByteOrder32Host //only needed because CGImage.h added symbols in the minor version - flags |= kCGBitmapByteOrder32Host; -#endif const QImage *image = static_cast<const QImage *>(paintEngine->paintDevice()); - - context = CGBitmapContextCreate((void *)image->bits(), image->width(), image->height(), - 8, image->bytesPerLine(), colorSpace, flags); - CFRelease(colorSpace); + QCFType<CGColorSpaceRef> colorSpace = CGColorSpaceCreateWithName(kCGColorSpaceSRGB); + context = CGBitmapContextCreate((void *)image->bits(), image->width(), image->height(), 8, + image->bytesPerLine(), colorSpace, qt_mac_bitmapInfoForImage(*image)); // Invert y axis CGContextTranslateCTM(context, 0, image->height()); |