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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkBitmapProvider.h"
#include "SkImage_Base.h"
#include "SkImageCacherator.h"
#include "SkPixelRef.h"
int SkBitmapProvider::width() const {
return fImage->width();
}
int SkBitmapProvider::height() const {
return fImage->height();
}
uint32_t SkBitmapProvider::getID() const {
return fImage->uniqueID();
}
SkImageInfo SkBitmapProvider::info() const {
return as_IB(fImage)->onImageInfo();
}
bool SkBitmapProvider::isVolatile() const {
// add flag to images?
const SkBitmap* bm = as_IB(fImage)->onPeekBitmap();
return bm ? bm->isVolatile() : false;
}
SkBitmapCacheDesc SkBitmapProvider::makeCacheDesc(int w, int h) const {
return SkBitmapCacheDesc::Make(fImage, w, h);
}
SkBitmapCacheDesc SkBitmapProvider::makeCacheDesc() const {
return SkBitmapCacheDesc::Make(fImage);
}
void SkBitmapProvider::notifyAddedToCache() const {
as_IB(fImage)->notifyAddedToCache();
}
bool SkBitmapProvider::asBitmap(SkBitmap* bm) const {
return as_IB(fImage)->getROPixels(bm, fDstColorSpace, SkImage::kAllow_CachingHint);
}
bool SkBitmapProvider::accessScaledImage(const SkRect& srcRect,
const SkMatrix& invMatrix,
SkFilterQuality fq,
SkBitmap* scaledBitmap,
SkRect* adjustedSrcRect,
SkFilterQuality* adjustedFilterQuality) const {
if (!fImage) {
return false;
}
SkImageCacherator* cacherator = as_IB(fImage)->peekCacherator();
if (!cacherator) {
return false;
}
// TODO: stash the matrix someplace to avoid invert()?
SkMatrix m;
if (!invMatrix.invert(&m)) {
return false;
}
SkImageGenerator::ScaledImageRec rec;
if (!cacherator->directAccessScaledImage(srcRect, m, fq, &rec) ||
!scaledBitmap->installPixels(rec.fPixmap.info(), const_cast<void*>(rec.fPixmap.addr()),
rec.fPixmap.rowBytes(), rec.fPixmap.ctable(),
rec.fReleaseProc, rec.fReleaseCtx)) {
return false;
}
*adjustedSrcRect = rec.fSrcRect;
*adjustedFilterQuality = rec.fQuality;
return true;
}
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