return true;
}
-void FEMorphology::platformApplyGeneric(PaintingData* paintingData, int yStart, int yEnd)
-{
- Uint8ClampedArray* srcPixelArray = paintingData->srcPixelArray;
- Uint8ClampedArray* dstPixelArray = paintingData->dstPixelArray;
- const int width = paintingData->width;
- const int height = paintingData->height;
- const int effectWidth = width * 4;
- const int radiusX = paintingData->radiusX;
- const int radiusY = paintingData->radiusY;
-
- Vector<unsigned char> extrema;
- for (int y = yStart; y < yEnd; ++y) {
- int extremaStartY = max(0, y - radiusY);
- int extremaEndY = min(height - 1, y + radiusY);
- for (unsigned clrChannel = 0; clrChannel < 4; ++clrChannel) {
- extrema.clear();
- // Compute extremas for each columns
- for (int x = 0; x <= radiusX; ++x) {
- unsigned char columnExtrema = srcPixelArray->item(extremaStartY * effectWidth + 4 * x + clrChannel);
- for (int eY = extremaStartY + 1; eY < extremaEndY; ++eY) {
- unsigned char pixel = srcPixelArray->item(eY * effectWidth + 4 * x + clrChannel);
- if ((m_type == FEMORPHOLOGY_OPERATOR_ERODE && pixel <= columnExtrema)
- || (m_type == FEMORPHOLOGY_OPERATOR_DILATE && pixel >= columnExtrema)) {
- columnExtrema = pixel;
- }
- }
-
- extrema.append(columnExtrema);
- }
-
- // Kernel is filled, get extrema of next column
- for (int x = 0; x < width; ++x) {
- const int endX = min(x + radiusX, width - 1);
- unsigned char columnExtrema = srcPixelArray->item(extremaStartY * effectWidth + endX * 4 + clrChannel);
- for (int i = extremaStartY + 1; i <= extremaEndY; ++i) {
- unsigned char pixel = srcPixelArray->item(i * effectWidth + endX * 4 + clrChannel);
- if ((m_type == FEMORPHOLOGY_OPERATOR_ERODE && pixel <= columnExtrema)
- || (m_type == FEMORPHOLOGY_OPERATOR_DILATE && pixel >= columnExtrema))
- columnExtrema = pixel;
- }
- if (x - radiusX >= 0)
- extrema.remove(0);
- if (x + radiusX <= width)
- extrema.append(columnExtrema);
-
- unsigned char entireExtrema = extrema[0];
- for (unsigned kernelIndex = 1; kernelIndex < extrema.size(); ++kernelIndex) {
- if ((m_type == FEMORPHOLOGY_OPERATOR_ERODE && extrema[kernelIndex] <= entireExtrema)
- || (m_type == FEMORPHOLOGY_OPERATOR_DILATE && extrema[kernelIndex] >= entireExtrema))
- entireExtrema = extrema[kernelIndex];
- }
- dstPixelArray->set(y * effectWidth + 4 * x + clrChannel, entireExtrema);
- }
- }
- }
-}
-
-void FEMorphology::platformApplyWorker(PlatformApplyParameters* param)
-{
- param->filter->platformApplyGeneric(param->paintingData, param->startY, param->endY);
-}
-
-void FEMorphology::platformApply(PaintingData* paintingData)
-{
- int optimalThreadNumber = (paintingData->width * paintingData->height) / s_minimalArea;
- if (optimalThreadNumber > 1) {
- ParallelJobs<PlatformApplyParameters> parallelJobs(&WebCore::FEMorphology::platformApplyWorker, optimalThreadNumber);
- int numOfThreads = parallelJobs.numberOfJobs();
- if (numOfThreads > 1) {
- // Split the job into "jobSize"-sized jobs but there a few jobs that need to be slightly larger since
- // jobSize * jobs < total size. These extras are handled by the remainder "jobsWithExtra".
- const int jobSize = paintingData->height / numOfThreads;
- const int jobsWithExtra = paintingData->height % numOfThreads;
- int currentY = 0;
- for (int job = numOfThreads - 1; job >= 0; --job) {
- PlatformApplyParameters& param = parallelJobs.parameter(job);
- param.filter = this;
- param.startY = currentY;
- currentY += job < jobsWithExtra ? jobSize + 1 : jobSize;
- param.endY = currentY;
- param.paintingData = paintingData;
- }
- parallelJobs.execute();
- return;
- }
- // Fallback to single thread model
- }
-
- platformApplyGeneric(paintingData, 0, paintingData->height);
-}
-
-
void FEMorphology::applySoftware()
{
- FilterEffect* in = inputEffect(0);
-
- Uint8ClampedArray* dstPixelArray = createPremultipliedImageResult();
- if (!dstPixelArray)
- return;
-
- setIsAlphaImage(in->isAlphaImage());
- if (m_radiusX <= 0 || m_radiusY <= 0) {
- dstPixelArray->zeroFill();
- return;
- }
-
- Filter* filter = this->filter();
- int radiusX = static_cast<int>(floorf(filter->applyHorizontalScale(m_radiusX)));
- int radiusY = static_cast<int>(floorf(filter->applyVerticalScale(m_radiusY)));
-
- IntRect effectDrawingRect = requestedRegionOfInputImageData(in->absolutePaintRect());
- RefPtr<Uint8ClampedArray> srcPixelArray = in->asPremultipliedImage(effectDrawingRect);
-
- PaintingData paintingData;
- paintingData.srcPixelArray = srcPixelArray.get();
- paintingData.dstPixelArray = dstPixelArray;
- paintingData.width = effectDrawingRect.width();
- paintingData.height = effectDrawingRect.height();
- paintingData.radiusX = min(effectDrawingRect.width() - 1, radiusX);
- paintingData.radiusY = min(effectDrawingRect.height() - 1, radiusY);
-
- platformApply(&paintingData);
-}
-
-bool FEMorphology::applySkia()
-{
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
- return false;
+ return;
FilterEffect* in = inputEffect(0);
SkPaint paint;
GraphicsContext* dstContext = resultImage->context();
if (m_type == FEMORPHOLOGY_OPERATOR_DILATE)
- paint.setImageFilter(new SkDilateImageFilter(radiusX, radiusY))->unref();
+ paint.setImageFilter(SkDilateImageFilter::Create(radiusX, radiusY))->unref();
else if (m_type == FEMORPHOLOGY_OPERATOR_ERODE)
- paint.setImageFilter(new SkErodeImageFilter(radiusX, radiusY))->unref();
+ paint.setImageFilter(SkErodeImageFilter::Create(radiusX, radiusY))->unref();
SkRect bounds = SkRect::MakeWH(absolutePaintRect().width(), absolutePaintRect().height());
dstContext->saveLayer(&bounds, &paint);
dstContext->drawImage(image.get(), drawingRegion.location(), CompositeCopy);
dstContext->restoreLayer();
- return true;
}
PassRefPtr<SkImageFilter> FEMorphology::createImageFilter(SkiaImageFilterBuilder* builder)
SkScalar radiusY = SkFloatToScalar(filter()->applyVerticalScale(m_radiusY));
SkImageFilter::CropRect rect = getCropRect(builder->cropOffset());
if (m_type == FEMORPHOLOGY_OPERATOR_DILATE)
- return adoptRef(new SkDilateImageFilter(radiusX, radiusY, input.get(), &rect));
- return adoptRef(new SkErodeImageFilter(radiusX, radiusY, input.get(), &rect));
+ return adoptRef(SkDilateImageFilter::Create(radiusX, radiusY, input.get(), &rect));
+ return adoptRef(SkErodeImageFilter::Create(radiusX, radiusY, input.get(), &rect));
}
static TextStream& operator<<(TextStream& ts, const MorphologyOperatorType& type)
projects / platform / framework / web / crosswalk.git / blobdiff