http://code.google.com/p/skia/ 

Skia is a complete 2D graphic library for drawing Text, Geometries, and Images. Features include:

3x3 matrices w/ perspective
antialiasing, transparency, filters
shaders, xfermodes, maskfilters, patheffects
Device backends for Skia currently include:

Raster
OpenGL
PDF

　　

http://www.guao.hk/tag/skia

 

3 × 3 带角度的矩阵
抗锯齿、透明化和滤镜
阴影、XFER模式、模板过滤器、通道效果

　　是标准翻译？

 

ezhong的博客园：http://www.cnblogs.com/ezhong/