1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/include/utils/SkPathUtils.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,40 @@
1.4 +/*
1.5 + * CAUTION: EXPERIMENTAL CODE
1.6 + *
1.7 + * This code is not to be used and will not be supported
1.8 + * if it fails on you. DO NOT USE!
1.9 + *
1.10 + */
1.11 +
1.12 +#ifndef SkPathUtils_DEFINED
1.13 +#define SkPathUtils_DEFINED
1.14 +
1.15 +#include "SkPath.h"
1.16 +
1.17 +/*
1.18 + * The following methods return the boundary path given a 1-bit bitmap, specified
1.19 + * by width/height and stride. The bits are interpreted as 1 being "in" the path,
1.20 + * and 0 being "out". The bits are interpreted as MSB on the left, and LSB on the right.
1.21 + */
1.22 +
1.23 +class SK_API SkPathUtils {
1.24 +public:
1.25 + /**
1.26 + This variation iterates the binary data sequentially (as in scanline fashion)
1.27 + and will add each run of 1's to the path as a rectangular path. Upon parsing
1.28 + all binary data the path is simplified using the PathOps::Simplify() method.
1.29 + */
1.30 + static void BitsToPath_Path(SkPath* path, const char* bitmap,
1.31 + int w, int h, int rowBytes);
1.32 +
1.33 + /**
1.34 + This variation utilizes the SkRegion class to generate paths, adding
1.35 + each run of 1's to the SkRegion as an SkIRect. Upon parsing the entirety
1.36 + of the binary the SkRegion is converted to a Path via getBoundaryPath().
1.37 + */
1.38 + static void BitsToPath_Region(SkPath* path, const char* bitmap,
1.39 + int w, int h, int rowBytes);
1.40 +
1.41 +};
1.42 +
1.43 +#endif
