SkImage* SkImage::NewFromBitmap(const SkBitmap& bm) {
SkPixelRef* pr = bm.pixelRef();
if (nullptr == pr) {
return nullptr;
}
#if SK_SUPPORT_GPU
if (GrTexture* tex = pr->getTexture()) {
SkAutoTUnref<GrTexture> unrefCopy;
if (!bm.isImmutable()) {
const bool notBudgeted = false;
tex = GrDeepCopyTexture(tex, notBudgeted);
if (nullptr == tex) {
return nullptr;
}
unrefCopy.reset(tex);
}
const SkImageInfo info = bm.info();
return new SkImage_Gpu(info.width(), info.height(), bm.getGenerationID(), info.alphaType(),
tex, 0, SkSurface::kNo_Budgeted);
}
#endif
// This will check for immutable (share or copy)
return SkNewImageFromRasterBitmap(bm, nullptr);
}
SkImage* SkSurface_Raster::onNewImageSnapshot(Budgeted) {
if (fWeOwnThePixels) {
// SkImage_raster requires these pixels are immutable for its full lifetime.
// We'll undo this via onRestoreBackingMutability() if we can avoid the COW.
if (SkPixelRef* pr = fBitmap.pixelRef()) {
pr->setTemporarilyImmutable();
}
}
// Our pixels are in memory, so read access on the snapshot SkImage could be cheap.
// Lock the shared pixel ref to ensure peekPixels() is usable.
return SkNewImageFromRasterBitmap(fBitmap,
fWeOwnThePixels ? kNo_ForceCopyMode : kYes_ForceCopyMode);
}
SkImage* SkSurface_Raster::onNewImageSnapshot(Budgeted) {
return SkNewImageFromRasterBitmap(fBitmap, fWeOwnThePixels, &this->props());
}
