#include "config.h"
#if ENABLE(FILTERS)
#include "FETile.h"
#include "AffineTransform.h"
#include "Filter.h"
#include "GraphicsContext.h"
#include "Pattern.h"
#include "RenderTreeAsText.h"
#include "SVGImageBufferTools.h"
#include "TextStream.h"
namespace WebCore {
FETile::FETile(Filter* filter)
: FilterEffect(filter)
{
}
PassRefPtr<FETile> FETile::create(Filter* filter)
{
return adoptRef(new FETile(filter));
}
void FETile::apply()
{
#if ENABLE(SVG)
if (hasResult())
return;
FilterEffect* in = inputEffect(0);
in->apply();
if (!in->hasResult())
return;
ImageBuffer* resultImage = createImageBufferResult();
if (!resultImage)
return;
setIsAlphaImage(in->isAlphaImage());
FloatRect tileRect = in->maxEffectRect();
FloatPoint inMaxEffectLocation = tileRect.location();
FloatPoint maxEffectLocation = maxEffectRect().location();
if (in->filterEffectType() == FilterEffectTypeSourceInput) {
Filter* filter = this->filter();
tileRect = filter->filterRegion();
tileRect.scale(filter->filterResolution().width(), filter->filterResolution().height());
}
OwnPtr<ImageBuffer> tileImage;
if (!SVGImageBufferTools::createImageBuffer(tileRect, tileRect, tileImage, ColorSpaceDeviceRGB))
return;
GraphicsContext* tileImageContext = tileImage->context();
tileImageContext->translate(-inMaxEffectLocation.x(), -inMaxEffectLocation.y());
tileImageContext->drawImageBuffer(in->asImageBuffer(), ColorSpaceDeviceRGB, in->absolutePaintRect().location());
RefPtr<Pattern> pattern = Pattern::create(tileImage->copyImage(), true, true);
AffineTransform patternTransform;
patternTransform.translate(inMaxEffectLocation.x() - maxEffectLocation.x(), inMaxEffectLocation.y() - maxEffectLocation.y());
pattern->setPatternSpaceTransform(patternTransform);
GraphicsContext* filterContext = resultImage->context();
filterContext->setFillPattern(pattern);
filterContext->fillRect(FloatRect(FloatPoint(), absolutePaintRect().size()));
#endif
}
void FETile::dump()
{
}
TextStream& FETile::externalRepresentation(TextStream& ts, int indent) const
{
writeIndent(ts, indent);
ts << "[feTile";
FilterEffect::externalRepresentation(ts);
ts << "]\n";
inputEffect(0)->externalRepresentation(ts, indent + 1);
return ts;
}
}
#endif // ENABLE(FILTERS)