diff options
Diffstat (limited to 'skia/ext/platform_canvas.h')
| -rw-r--r-- | skia/ext/platform_canvas.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/skia/ext/platform_canvas.h b/skia/ext/platform_canvas.h index 528fd1a..c4d9222 100644 --- a/skia/ext/platform_canvas.h +++ b/skia/ext/platform_canvas.h @@ -114,6 +114,23 @@ class SK_API PlatformCanvas : public SkCanvas { PlatformCanvas& operator=(const PlatformCanvas&); }; +// Creates a canvas with raster bitmap backing. +// Set is_opaque if you are going to erase the bitmap and not use +// transparency: this will enable some optimizations. +SK_API SkCanvas* CreateBitmapCanvas(int width, int height, bool is_opaque); + +// These calls should surround calls to platform drawing routines, the +// surface returned here can be used with the native platform routines. +// +// Call EndPlatformPaint when you are done and want to use skia operations +// after calling the platform-specific BeginPlatformPaint; this will +// synchronize the bitmap to OS if necessary. +// +// Note: These functions will eventually replace +// PlatformCanvas::beginPlatformPaint and PlatformCanvas::endPlatformPaint. +SK_API PlatformDevice::PlatformSurface BeginPlatformPaint(SkCanvas* canvas); +SK_API void EndPlatformPaint(SkCanvas* canvas); + } // namespace skia #endif // SKIA_EXT_PLATFORM_CANVAS_H_ |