本文整理汇总了C++中GraphicsContext::drawBitmap方法的典型用法代码示例。如果您正苦于以下问题：C++ GraphicsContext::drawBitmap方法的具体用法？C++ GraphicsContext::drawBitmap怎么用？C++ GraphicsContext::drawBitmap使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类GraphicsContext的用法示例。
在下文中一共展示了GraphicsContext::drawBitmap方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: applySoftware
void FEDropShadow::applySoftware()
{
FilterEffect* in = inputEffect(0);
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return;
Filter* filter = this->filter();
FloatSize blurRadius(filter->applyHorizontalScale(m_stdX), filter->applyVerticalScale(m_stdY));
FloatSize offset(filter->applyHorizontalScale(m_dx), filter->applyVerticalScale(m_dy));
FloatRect drawingRegion = drawingRegionOfInputImage(in->absolutePaintRect());
GraphicsContext* resultContext = resultImage->context();
ASSERT(resultContext);
Color color = adaptColorToOperatingColorSpace(m_shadowColor.combineWithAlpha(m_shadowOpacity));
SkAutoTUnref<SkImageFilter> blurFilter(SkBlurImageFilter::Create(blurRadius.width(), blurRadius.height()));
SkAutoTUnref<SkColorFilter> colorFilter(SkColorFilter::CreateModeFilter(color.rgb(), SkXfermode::kSrcIn_Mode));
SkPaint paint;
paint.setImageFilter(blurFilter.get());
paint.setColorFilter(colorFilter.get());
paint.setXfermodeMode(SkXfermode::kSrcOver_Mode);
RefPtr<Image> image = in->asImageBuffer()->copyImage(DontCopyBackingStore);
RefPtr<NativeImageSkia> nativeImage = image->nativeImageForCurrentFrame();
if (!nativeImage)
return;
resultContext->drawBitmap(nativeImage->bitmap(), drawingRegion.x() + offset.width(), drawingRegion.y() + offset.height(), &paint);
resultContext->drawBitmap(nativeImage->bitmap(), drawingRegion.x(), drawingRegion.y());
}示例2: applySkia
bool FELighting::applySkia()
{
// For now, only use the skia implementation for accelerated rendering.
if (!filter()->isAccelerated())
return false;
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return false;
FilterEffect* in = inputEffect(0);
IntRect drawingRegion = drawingRegionOfInputImage(in->absolutePaintRect());
setIsAlphaImage(in->isAlphaImage());
RefPtr<Image> image = in->asImageBuffer()->copyImage(DontCopyBackingStore);
RefPtr<NativeImageSkia> nativeImage = image->nativeImageForCurrentFrame();
if (!nativeImage)
return false;
GraphicsContext* dstContext = resultImage->context();
SkPaint paint;
RefPtr<SkImageFilter> filter = createImageFilter(0);
paint.setImageFilter(filter.get());
dstContext->drawBitmap(nativeImage->bitmap(), drawingRegion.location().x(), drawingRegion.location().y(), &paint);
return true;
}