#ifndef FEColorMatrix_h
#define FEColorMatrix_h
#include "platform/graphics/filters/Filter.h"
#include "platform/graphics/filters/FilterEffect.h"
#include "wtf/Vector.h"
namespace WebCore {
enum ColorMatrixType {
FECOLORMATRIX_TYPE_UNKNOWN = 0,
FECOLORMATRIX_TYPE_MATRIX = 1,
FECOLORMATRIX_TYPE_SATURATE = 2,
FECOLORMATRIX_TYPE_HUEROTATE = 3,
FECOLORMATRIX_TYPE_LUMINANCETOALPHA = 4
};
class PLATFORM_EXPORT FEColorMatrix : public FilterEffect {
public:
static PassRefPtr<FEColorMatrix> create(Filter*, ColorMatrixType, const Vector<float>&);
ColorMatrixType type() const;
bool setType(ColorMatrixType);
const Vector<float>& values() const;
bool setValues(const Vector<float>&);
virtual PassRefPtr<SkImageFilter> createImageFilter(SkiaImageFilterBuilder*) OVERRIDE;
virtual TextStream& externalRepresentation(TextStream&, int indention) const OVERRIDE;
static inline void calculateSaturateComponents(float* components, float value);
static inline void calculateHueRotateComponents(float* components, float value);
private:
FEColorMatrix(Filter*, ColorMatrixType, const Vector<float>&);
virtual void applySoftware() OVERRIDE;
virtual bool affectsTransparentPixels() OVERRIDE;
ColorMatrixType m_type;
Vector<float> m_values;
};
}
#endif