#include "config.h"
#include "FEMerge.h"
#include "Filter.h"
#include "GraphicsContext.h"
#include <wtf/text/TextStream.h>
namespace WebCore {
FEMerge::FEMerge(Filter& filter)
: FilterEffect(filter)
{
}
Ref<FEMerge> FEMerge::create(Filter& filter)
{
return adoptRef(*new FEMerge(filter));
}
void FEMerge::platformApplySoftware()
{
unsigned size = numberOfEffectInputs();
ASSERT(size > 0);
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return;
GraphicsContext& filterContext = resultImage->context();
for (unsigned i = 0; i < size; ++i) {
FilterEffect* in = inputEffect(i);
if (ImageBuffer* inBuffer = in->imageBufferResult())
filterContext.drawImageBuffer(*inBuffer, drawingRegionOfInputImage(in->absolutePaintRect()));
}
}
TextStream& FEMerge::externalRepresentation(TextStream& ts, RepresentationType representation) const
{
ts << indent << "[feMerge";
FilterEffect::externalRepresentation(ts, representation);
unsigned size = numberOfEffectInputs();
ASSERT(size > 0);
ts << " mergeNodes=\"" << size << "\"]\n";
TextStream::IndentScope indentScope(ts);
for (unsigned i = 0; i < size; ++i)
inputEffect(i)->externalRepresentation(ts, representation);
return ts;
}
}