diff options
Diffstat (limited to 'src/core/SkPixmapPriv.h')
| -rw-r--r-- | src/core/SkPixmapPriv.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/src/core/SkPixmapPriv.h b/src/core/SkPixmapPriv.h index 1d677fdc46..9941862676 100644 --- a/src/core/SkPixmapPriv.h +++ b/src/core/SkPixmapPriv.h @@ -10,6 +10,7 @@ #include "SkPixmap.h" #include "SkEncodedOrigin.h" +#include "SkAutoPixmapStorage.h" class SkPixmapPriv { public: @@ -27,6 +28,41 @@ public: * by the flags. If the inputs are invalid, this returns false and no copy is made. */ static bool Orient(const SkPixmap& dst, const SkPixmap& src, OrientFlags); + + static bool ShouldSwapWidthHeight(SkEncodedOrigin o); + static SkImageInfo SwapWidthHeight(const SkImageInfo& info); + + /** + * Decode an image and then copy into dst, applying origin. + * + * @param dst SkPixmap to write the final image, after + * applying the origin. + * @param origin SkEncodedOrigin to apply to the raw pixels. + * @param decode Function for decoding into a pixmap without + * applying the origin. + */ + static bool Orient(const SkPixmap& dst, SkEncodedOrigin origin, + std::function<bool(const SkPixmap&)> decode) { + SkAutoPixmapStorage storage; + const SkPixmap* tmp = &dst; + if (origin != kTopLeft_SkEncodedOrigin) { + auto info = dst.info(); + if (ShouldSwapWidthHeight(origin)) { + info = SwapWidthHeight(info); + } + if (!storage.tryAlloc(info)) { + return false; + } + tmp = &storage; + } + if (!decode(*tmp)) { + return false; + } + if (tmp != &dst) { + return Orient(dst, *tmp, OriginToOrient(origin)); + } + return true; + } }; #endif |