diff options
| author |  senorblanco@chromium.org <senorblanco@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> | 2011-12-02 19:11:17 +0000 |
|---|---|---|
| committer | senorblanco@chromium.org <senorblanco@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> | 2011-12-02 19:11:17 +0000 |
| commit | ef843cdcd1be858fe55cc99ff134ffbd080c9a51 (patch) | |
| tree | 7444455a3085d02aa86e3c5c3b0c2e0df2f264f8 /include/core/SkPixelRef.h | |
| parent | c62b0f8fd0cfaee1791e7bb4f349ad165df4f86b (diff) | |
When a bitmap is texture-backed, change SkBitmap::copyTo() to do a deep
copy of the texels in VRAM rather than a readback and re-upload. This
gives a 3-10X speedup on recursive canvas-to-canvas draws.
N.B.: This introduces a new GM test, which will need new baselines.
git-svn-id: http://skia.googlecode.com/svn/trunk@2790 2bbb7eff-a529-9590-31e7-b0007b416f81
Diffstat (limited to 'include/core/SkPixelRef.h')
| -rw-r--r-- | include/core/SkPixelRef.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/core/SkPixelRef.h b/include/core/SkPixelRef.h index 7e21a43192..374868e99e 100644 --- a/include/core/SkPixelRef.h +++ b/include/core/SkPixelRef.h @@ -10,10 +10,10 @@ #ifndef SkPixelRef_DEFINED #define SkPixelRef_DEFINED +#include "SkBitmap.h" #include "SkRefCnt.h" #include "SkString.h" -class SkBitmap; class SkColorTable; struct SkIRect; class SkMutex; @@ -117,6 +117,12 @@ public: bool readPixels(SkBitmap* dst, const SkIRect* subset = NULL); + /** Makes a deep copy of this PixelRef, respecting the requested config. + Returns NULL if either there is an error (e.g. the destination could + not be created with the given config), or this PixelRef does not + support deep copies. */ + virtual SkPixelRef* deepCopy(SkBitmap::Config config) { return NULL; } + // serialization typedef SkPixelRef* (*Factory)(SkFlattenableReadBuffer&); |