File indexing completed on 2024-06-16 04:17:25

 /*
  *  SPDX-FileCopyrightText: 2012 Dmitry Kazakov <dimula73@gmail.com>
  *
  *  SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #ifndef __KIS_DAB_CACHE_H
 #define __KIS_DAB_CACHE_H
 
 #include "kritapaintop_export.h"
 
 #include "kis_dab_cache_base.h"
 
 #include "kis_brush.h"
 
 class KisColorSource;
 class KisTextureOption;
 class KisPrecisionOption;
 struct MirrorProperties;
 
 
 /**
  * @brief The KisDabCache class provides caching for dabs into the brush paintop
  *
  *  This class adds caching of the dabs to the paintop system of Krita.
  *  Such cache makes the execution of the benchmarks up to 2 times faster.
  *  Subjectively, the real painting becomes much faster, especially with
  *  huge brushes. Artists report up to 20% speed gain while painting.
  *
  *  Of course, such caching makes the painting a bit less precise: we need
  *  to tolerate subpixel differences to allow the cache to work. Sometimes
  *  small difference in the size of a dab can also be acceptable. That is
  *  why I introduced levels of precision. They are graded from 1 to 5: from
  *  the fastest and less precise to the slowest, but with the best quality.
  *  You can see the slider in the paintop settings dialog. The ToolTip text
  *  explains which features of the brush are sacrificed on each precision
  *  level.
  *
  *  The texturing and mirroring problems are solved.
  */
 class PAINTOP_EXPORT KisDabCache : public KisDabCacheBase
 {
 public:
     KisDabCache(KisBrushSP brush);
     ~KisDabCache();
 
     KisFixedPaintDeviceSP fetchDab(const KoColorSpace *cs,
                                    KisColorSource *colorSource,
                                    const QPointF &cursorPoint,
                                    KisDabShape const&,
                                    const KisPaintInformation& info,
                                    qreal softnessFactor,
                                    QRect *dstDabRect,
                                    qreal lightnessStrength = 1.0);
 
     KisFixedPaintDeviceSP fetchDab(const KoColorSpace *cs,
                                    const KoColor& color,
                                    const QPointF &cursorPoint,
                                    KisDabShape const&,
                                    const KisPaintInformation& info,
                                    qreal softnessFactor,
                                    QRect *dstDabRect,
                                    qreal lightnessStrength = 1.0);
 
     KisFixedPaintDeviceSP fetchNormalizedImageDab(const KoColorSpace *cs,
                                                   const QPointF &cursorPoint,
                                                   KisDabShape const& shape,
                                                   const KisPaintInformation& info,
                                                   qreal softnessFactor,
                                                   QRect *dstDabRect);
 
 
     void setSharpnessPostprocessing(KisSharpnessOption *option);
     void setTexturePostprocessing(KisTextureOption *option);
 
     bool needSeparateOriginal() const;
 
 private:
 
     inline KisFixedPaintDeviceSP fetchFromCache(KisDabCacheUtils::DabRenderingResources *resources, const KisPaintInformation& info,
                                                 QRect *dstDabRect);
 
     inline KisFixedPaintDeviceSP fetchDabCommon(const KoColorSpace *cs,
             KisColorSource *colorSource,
             const KoColor& color,
             const QPointF &cursorPoint,
             KisDabShape,
             const KisPaintInformation& info,
             qreal softnessFactor,
             QRect *dstDabRect,
             qreal lightnessStrength = 1.0,
             bool forceNormalizedRGBAImageStamp = false);
 
 private:
 
     struct Private;
     Private * const m_d;
 
 };
 
 #endif /* __KIS_DAB_CACHE_H */