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- /*
- * Copyright 2014 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #ifndef SkCanvasPriv_DEFINED
- #define SkCanvasPriv_DEFINED
- #include "include/core/SkCanvas.h"
- #include "include/private/SkNoncopyable.h"
- class SkReadBuffer;
- class SkWriteBuffer;
- class SkAutoCanvasMatrixPaint : SkNoncopyable {
- public:
- SkAutoCanvasMatrixPaint(SkCanvas*, const SkMatrix*, const SkPaint*, const SkRect& bounds);
- ~SkAutoCanvasMatrixPaint();
- private:
- SkCanvas* fCanvas;
- int fSaveCount;
- };
- class SkCanvasPriv {
- public:
- enum {
- kDontClipToLayer_SaveLayerFlag = SkCanvas::kDontClipToLayer_PrivateSaveLayerFlag,
- };
- // The lattice has pointers directly into the readbuffer
- static bool ReadLattice(SkReadBuffer&, SkCanvas::Lattice*);
- static void WriteLattice(SkWriteBuffer&, const SkCanvas::Lattice&);
- // return the byte-size of the lattice, even if the buffer is null
- // storage must be 4-byte aligned
- static size_t WriteLattice(void* storage, const SkCanvas::Lattice&);
- static SkCanvas::SaveLayerFlags LegacySaveFlagsToSaveLayerFlags(uint32_t legacySaveFlags);
- static int SaveBehind(SkCanvas* canvas, const SkRect* subset) {
- return canvas->only_axis_aligned_saveBehind(subset);
- }
- static void DrawBehind(SkCanvas* canvas, const SkPaint& paint) {
- canvas->drawClippedToSaveBehind(paint);
- }
- // The experimental_DrawEdgeAAImageSet API accepts separate dstClips and preViewMatrices arrays,
- // where entries refer into them, but no explicit size is provided. Given a set of entries,
- // computes the minimum length for these arrays that would provide index access errors.
- static void GetDstClipAndMatrixCounts(const SkCanvas::ImageSetEntry set[], int count,
- int* totalDstClipCount, int* totalMatrixCount);
- };
- #endif
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