CustomFilterOperation.h [plain text]
#ifndef CustomFilterOperation_h
#define CustomFilterOperation_h
#if ENABLE(CSS_SHADERS)
#include "CustomFilterConstants.h"
#include "CustomFilterParameterList.h"
#include "CustomFilterProgram.h"
#include "FilterOperation.h"
#include "LayoutSize.h"
namespace WebCore {
class CustomFilterOperation : public FilterOperation {
public:
static PassRefPtr<CustomFilterOperation> create(PassRefPtr<CustomFilterProgram> program, const CustomFilterParameterList& sortedParameters, unsigned meshRows, unsigned meshColumns)
{
return adoptRef(new CustomFilterOperation(program, sortedParameters, meshRows, meshColumns));
}
CustomFilterProgram* program() const { return m_program.get(); }
void setProgram(PassRefPtr<CustomFilterProgram> program) { m_program = program; }
const CustomFilterParameterList& parameters() const { return m_parameters; }
unsigned meshRows() const { return m_meshRows; }
unsigned meshColumns() const { return m_meshColumns; }
CustomFilterMeshType meshType() const { return program() ? program()->meshType() : MeshTypeAttached; }
virtual ~CustomFilterOperation();
virtual bool affectsOpacity() const { return true; }
virtual bool movesPixels() const { return true; }
virtual bool blendingNeedsRendererSize() const { return true; }
virtual PassRefPtr<FilterOperation> blend(const FilterOperation* from, double progress, const LayoutSize&, bool blendToPassthrough = false);
protected:
CustomFilterOperation(PassRefPtr<CustomFilterProgram>, const CustomFilterParameterList&, unsigned meshRows, unsigned meshColumns);
private:
virtual bool operator==(const FilterOperation& o) const
{
if (!isSameType(o))
return false;
const CustomFilterOperation* other = static_cast<const CustomFilterOperation*>(&o);
return m_program.get() == other->m_program.get()
&& m_meshRows == other->m_meshRows
&& m_meshColumns == other->m_meshColumns
&& m_parameters == other->m_parameters;
}
RefPtr<CustomFilterProgram> m_program;
CustomFilterParameterList m_parameters;
unsigned m_meshRows;
unsigned m_meshColumns;
};
}
#endif // ENABLE(CSS_SHADERS)
#endif // CustomFilterOperation_h