static void drawPath(const SkPath *path, const SkPaint* paint, SkBitmap& bitmap,
float left, float top, float offset, uint32_t width, uint32_t height) {
initBitmap(bitmap, width, height);
SkPaint pathPaint(*paint);
initPaint(pathPaint);
SkCanvas canvas(bitmap);
canvas.translate(-left + offset, -top + offset);
canvas.drawPath(*path, pathPaint);
}
void FETurbulence::apply()
{
if (hasResult())
return;
ByteArray* pixelArray = createUnmultipliedImageResult();
if (!pixelArray)
return;
if (absolutePaintRect().isEmpty())
return;
PaintingData paintingData(m_seed, roundedIntSize(filterPrimitiveSubregion().size()));
initPaint(paintingData);
#if ENABLE(PARALLEL_JOBS)
int optimalThreadNumber = (absolutePaintRect().width() * absolutePaintRect().height()) / s_minimalRectDimension;
if (optimalThreadNumber > 1) {
// Initialize parallel jobs
ParallelJobs<FillRegionParameters> parallelJobs(&WebCore::FETurbulence::fillRegionWorker, optimalThreadNumber);
// Fill the parameter array
int i = parallelJobs.numberOfJobs();
if (i > 1) {
int startY = 0;
int stepY = absolutePaintRect().height() / i;
for (; i > 0; --i) {
FillRegionParameters& params = parallelJobs.parameter(i-1);
params.filter = this;
params.pixelArray = pixelArray;
params.paintingData = &paintingData;
params.startY = startY;
if (i != 1) {
params.endY = startY + stepY;
startY = startY + stepY;
} else
params.endY = absolutePaintRect().height();
}
// Execute parallel jobs
parallelJobs.execute();
return;
}
}
// Fallback to sequential mode if there is no room for a new thread or the paint area is too small
#endif // ENABLE(PARALLEL_JOBS)
fillRegion(pixelArray, paintingData, 0, absolutePaintRect().height());
}
void FETurbulence::applySoftware()
{
Uint8ClampedArray* pixelArray = createUnmultipliedImageResult();
if (!pixelArray)
return;
if (absolutePaintRect().isEmpty()) {
pixelArray->zeroFill();
return;
}
PaintingData paintingData(m_seed, roundedIntSize(filterPrimitiveSubregion().size()));
initPaint(paintingData);
int optimalThreadNumber = (absolutePaintRect().width() * absolutePaintRect().height()) / s_minimalRectDimension;
if (optimalThreadNumber > 1) {
// Initialize parallel jobs
ParallelJobs<FillRegionParameters> parallelJobs(&WebCore::FETurbulence::fillRegionWorker, optimalThreadNumber);
// Fill the parameter array
int i = parallelJobs.numberOfJobs();
if (i > 1) {
// Split the job into "stepY"-sized jobs but there a few jobs that need to be slightly larger since
// stepY * jobs < total size. These extras are handled by the remainder "jobsWithExtra".
const int stepY = absolutePaintRect().height() / i;
const int jobsWithExtra = absolutePaintRect().height() % i;
int startY = 0;
for (; i > 0; --i) {
FillRegionParameters& params = parallelJobs.parameter(i-1);
params.filter = this;
params.pixelArray = pixelArray;
params.paintingData = &paintingData;
params.startY = startY;
startY += i < jobsWithExtra ? stepY + 1 : stepY;
params.endY = startY;
params.baseFrequencyX = m_baseFrequencyX;
params.baseFrequencyY = m_baseFrequencyY;
}
// Execute parallel jobs
parallelJobs.execute();
return;
}
}
// Fallback to single threaded mode if there is no room for a new thread or the paint area is too small.
fillRegion(pixelArray, paintingData, 0, absolutePaintRect().height(), m_baseFrequencyX, m_baseFrequencyY);
}
