*/
virtual int requestRowsPreserved() const { return 1; }
+ /**
+ * This function allocates memory for the blitter that the blitter then owns.
+ * The memory can be used by the calling function at will, but it will be
+ * released when the blitter's destructor is called. This function returns
+ * NULL if no persistent memory is needed by the blitter.
+ */
+ virtual void* allocBlitMemory(size_t sz) {
+ return fBlitMemory.reset(sz, SkAutoMalloc::kReuse_OnShrink);
+ }
+
///@name non-virtual helpers
void blitMaskRegion(const SkMask& mask, const SkRegion& clip);
void blitRectRegion(const SkIRect& rect, const SkRegion& clip);
SkTBlitterAllocator*);
///@}
+protected:
+
+ SkAutoMalloc fBlitMemory;
+
private:
};
virtual void blitMask(const SkMask&, const SkIRect& clip) SK_OVERRIDE;
virtual const SkBitmap* justAnOpaqueColor(uint32_t* value) SK_OVERRIDE;
+ virtual void* allocBlitMemory(size_t sz) SK_OVERRIDE {
+ return fBlitter->allocBlitMemory(sz);
+ }
+
private:
SkBlitter* fBlitter;
SkIRect fClipRect;
virtual void blitMask(const SkMask&, const SkIRect& clip) SK_OVERRIDE;
virtual const SkBitmap* justAnOpaqueColor(uint32_t* value) SK_OVERRIDE;
+ virtual void* allocBlitMemory(size_t sz) SK_OVERRIDE {
+ return fBlitter->allocBlitMemory(sz);
+ }
+
private:
SkBlitter* fBlitter;
const SkRegion* fRgn;
virtual ~SuperBlitter() {
this->flush();
- sk_free(fRunsBuffer);
}
/// Once fRuns contains a complete supersampled row, flush() blits
const SkRegion& clip)
: BaseSuperBlitter(realBlitter, ir, clip) {
fRunsToBuffer = realBlitter->requestRowsPreserved();
- fRunsBuffer = sk_malloc_throw(fRunsToBuffer * this->getRunsSz());
+ fRunsBuffer = realBlitter->allocBlitMemory(fRunsToBuffer * this->getRunsSz());
fCurrentRun = -1;
this->advanceRuns();