void BitmapImage::draw(GraphicsContext* ctxt, const FloatRect& dstRect, const FloatRect& srcRect, ColorSpace colorSpace, CompositeOperator compositeOp, BlendMode, RespectImageOrientationEnum shouldRespectImageOrientation)
{
// Spin the animation to the correct frame before we try to draw it, so we
// don't draw an old frame and then immediately need to draw a newer one,
// causing flicker and wasting CPU.
startAnimation();
RefPtr<NativeImageSkia> bm = nativeImageForCurrentFrame();
if (!bm)
return; // It's too early and we don't have an image yet.
FloatRect normDstRect = normalizeRect(dstRect);
FloatRect normSrcRect = normalizeRect(srcRect);
normSrcRect.intersect(FloatRect(0, 0, bm->bitmap().width(), bm->bitmap().height()));
if (normSrcRect.isEmpty() || normDstRect.isEmpty())
return; // Nothing to draw.
ImageOrientation orientation = DefaultImageOrientation;
if (shouldRespectImageOrientation == RespectImageOrientation)
orientation = frameOrientationAtIndex(m_currentFrame);
GraphicsContextStateSaver saveContext(*ctxt, false);
if (orientation != DefaultImageOrientation) {
saveContext.save();
// ImageOrientation expects the origin to be at (0, 0)
ctxt->translate(normDstRect.x(), normDstRect.y());
normDstRect.setLocation(FloatPoint());
ctxt->concatCTM(orientation.transformFromDefault(normDstRect.size()));
if (orientation.usesWidthAsHeight()) {
// The destination rect will have it's width and height already reversed for the orientation of
// the image, as it was needed for page layout, so we need to reverse it back here.
normDstRect = FloatRect(normDstRect.x(), normDstRect.y(), normDstRect.height(), normDstRect.width());
}
}
paintSkBitmap(ctxt->platformContext(),
*bm,
normSrcRect,
normDstRect,
WebCoreCompositeToSkiaComposite(compositeOp));
if (ImageObserver* observer = imageObserver())
observer->didDraw(this);
}
PassOwnPtr<DragImage> DragImage::create(Image* image, RespectImageOrientationEnum shouldRespectImageOrientation, float deviceScaleFactor)
{
if (!image)
return nullptr;
RefPtr<NativeImageSkia> bitmap = image->nativeImageForCurrentFrame();
if (!bitmap)
return nullptr;
if (image->isBitmapImage()) {
ImageOrientation orientation = DefaultImageOrientation;
BitmapImage* bitmapImage = toBitmapImage(image);
IntSize sizeRespectingOrientation = bitmapImage->sizeRespectingOrientation();
if (shouldRespectImageOrientation == RespectImageOrientation)
orientation = bitmapImage->currentFrameOrientation();
if (orientation != DefaultImageOrientation) {
FloatRect destRect(FloatPoint(), sizeRespectingOrientation);
if (orientation.usesWidthAsHeight())
destRect = destRect.transposedRect();
SkBitmap skBitmap;
skBitmap.setConfig(
SkBitmap::kARGB_8888_Config, sizeRespectingOrientation.width(), sizeRespectingOrientation.height());
if (!skBitmap.allocPixels())
return nullptr;
SkCanvas canvas(skBitmap);
canvas.concat(affineTransformToSkMatrix(orientation.transformFromDefault(sizeRespectingOrientation)));
canvas.drawBitmapRect(bitmap->bitmap(), 0, destRect);
return adoptPtr(new DragImage(skBitmap, deviceScaleFactor));
}
}
SkBitmap skBitmap;
#if defined(SBROWSER_GPU_RASTERIZATION_ENABLE)
if (!bitmap->bitmap().copyTo(&skBitmap, kPMColor_SkColorType))
#else
if (!bitmap->bitmap().copyTo(&skBitmap, SkBitmap::kARGB_8888_Config))
#endif
return nullptr;
return adoptPtr(new DragImage(skBitmap, deviceScaleFactor));
}
DragImageRef createDragImageFromImage(Image* image, RespectImageOrientationEnum shouldRespectImageOrientation)
{
if (!image)
return 0;
NativeImageSkia* bitmap = image->nativeImageForCurrentFrame();
if (!bitmap)
return 0;
DragImageChromium* dragImageChromium = new DragImageChromium;
dragImageChromium->bitmap = new SkBitmap();
dragImageChromium->resolutionScale = bitmap->resolutionScale();
if (image->isBitmapImage()) {
ImageOrientation orientation = DefaultImageOrientation;
BitmapImage* bitmapImage = static_cast<BitmapImage*>(image);
IntSize sizeRespectingOrientation = bitmapImage->sizeRespectingOrientation();
if (shouldRespectImageOrientation == RespectImageOrientation)
orientation = bitmapImage->currentFrameOrientation();
if (orientation != DefaultImageOrientation) {
// Construct a correctly-rotated copy of the image to use as the drag image.
dragImageChromium->bitmap->setConfig(
SkBitmap::kARGB_8888_Config, sizeRespectingOrientation.width(), sizeRespectingOrientation.height());
dragImageChromium->bitmap->allocPixels();
FloatRect destRect(FloatPoint(), sizeRespectingOrientation);
SkCanvas canvas(*dragImageChromium->bitmap);
canvas.concat(orientation.transformFromDefault(sizeRespectingOrientation));
if (orientation.usesWidthAsHeight())
destRect = FloatRect(destRect.x(), destRect.y(), destRect.height(), destRect.width());
canvas.drawBitmapRect(bitmap->bitmap(), 0, destRect);
return dragImageChromium;
}
}
bitmap->bitmap().copyTo(dragImageChromium->bitmap, SkBitmap::kARGB_8888_Config);
return dragImageChromium;
}
PassRefPtr<SkImage> DragImage::resizeAndOrientImage(PassRefPtr<SkImage> image, ImageOrientation orientation,
FloatSize imageScale, float opacity, InterpolationQuality interpolationQuality)
{
IntSize size(image->width(), image->height());
size.scale(imageScale.width(), imageScale.height());
AffineTransform transform;
if (orientation != DefaultImageOrientation) {
if (orientation.usesWidthAsHeight())
size = size.transposedSize();
transform *= orientation.transformFromDefault(size);
}
transform.scaleNonUniform(imageScale.width(), imageScale.height());
if (size.isEmpty())
return nullptr;
if (transform.isIdentity() && opacity == 1) {
// Nothing to adjust, just use the original.
ASSERT(image->width() == size.width());
ASSERT(image->height() == size.height());
return image;
}
RefPtr<SkSurface> surface = adoptRef(SkSurface::NewRasterN32Premul(size.width(), size.height()));
if (!surface)
return nullptr;
SkPaint paint;
ASSERT(opacity >= 0 && opacity <= 1);
paint.setAlpha(opacity * 255);
paint.setFilterQuality(interpolationQuality == InterpolationNone
? kNone_SkFilterQuality : kHigh_SkFilterQuality);
SkCanvas* canvas = surface->getCanvas();
canvas->clear(SK_ColorTRANSPARENT);
canvas->concat(affineTransformToSkMatrix(transform));
canvas->drawImage(image.get(), 0, 0, &paint);
return adoptRef(surface->newImageSnapshot());
}
PassOwnPtr<DragImage> DragImage::create(Image* image, RespectImageOrientationEnum shouldRespectImageOrientation, float deviceScaleFactor)
{
if (!image)
return nullptr;
RefPtr<NativeImageSkia> bitmap = image->nativeImageForCurrentFrame();
if (!bitmap)
return nullptr;
if (image->isBitmapImage()) {
ImageOrientation orientation = DefaultImageOrientation;
BitmapImage* bitmapImage = toBitmapImage(image);
IntSize sizeRespectingOrientation = bitmapImage->sizeRespectingOrientation();
if (shouldRespectImageOrientation == RespectImageOrientation)
orientation = bitmapImage->currentFrameOrientation();
if (orientation != DefaultImageOrientation) {
FloatRect destRect(FloatPoint(), sizeRespectingOrientation);
if (orientation.usesWidthAsHeight())
destRect = destRect.transposedRect();
SkBitmap skBitmap;
if (!skBitmap.tryAllocN32Pixels(sizeRespectingOrientation.width(), sizeRespectingOrientation.height()))
return nullptr;
SkCanvas canvas(skBitmap);
canvas.concat(affineTransformToSkMatrix(orientation.transformFromDefault(sizeRespectingOrientation)));
canvas.drawBitmapRect(bitmap->bitmap(), 0, destRect);
return adoptPtr(new DragImage(skBitmap, deviceScaleFactor));
}
}
SkBitmap skBitmap;
if (!bitmap->bitmap().copyTo(&skBitmap, kN32_SkColorType))
return nullptr;
return adoptPtr(new DragImage(skBitmap, deviceScaleFactor));
}
