enum wxInterpolationQuality
{
+ // default interpolation
+ wxINTERPOLATION_DEFAULT,
// no interpolation
- wxINTERPOLATION_NONE, // should be 0
+ wxINTERPOLATION_NONE,
// fast interpolation, suited for interactivity
wxINTERPOLATION_FAST,
// better quality
// classic Porter-Duff compositions
// http://keithp.com/~keithp/porterduff/p253-porter.pdf
+ wxCOMPOSITION_INVALID = -1, /* indicates invalid/unsupported mode */
wxCOMPOSITION_CLEAR, /* R = 0 */
wxCOMPOSITION_SOURCE, /* R = S */
wxCOMPOSITION_OVER, /* R = S + D*(1 - Sa) */
wxCOMPOSITION_XOR, /* R = S*(1 - Da) + D*(1 - Sa) */
// mathematical compositions
- wxCOMPOSITION_ADD, /* R = S + D */
+ wxCOMPOSITION_ADD /* R = S + D */
};
class WXDLLIMPEXP_FWD_CORE wxWindowDC;
// sets the antialiasing mode, returns true if it supported
virtual bool SetAntialiasMode(wxAntialiasMode antialias) = 0;
- // returns the current interpolation mode
+ // returns the current interpolation quality
virtual wxInterpolationQuality GetInterpolationQuality() const { return m_interpolation; }
- // sets the interpolation mode, returns true if it supported
+ // sets the interpolation quality, returns true if it supported
virtual bool SetInterpolationQuality(wxInterpolationQuality interpolation) = 0;
// returns the current compositing operator