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Hardware Accelerated Path Drawing in android

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I am interested in knowing how does Android handle path drawing using hardware acceleration considering the fact that OpenGL does not have path as a primitive.
I am stuck at native_drawPath which in turn calls a draw function whose implementation I cannot find. Can anyone help ?

posted Jun 28, 2013 by anonymous

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1 Answer

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Some convex shapes (circles, ovals, rounded rects, etc.) are rendered by tesselating the path. That's also how simple strokes are handled.

If a path is too complex the hardware renderer falls back to software. The path is drawn into a bitmap that is the uploaded to a GL texture and rendered on screen using a simple quad.

The native_drawPath function you mention is not used by hardware acceleration. Its used by the software renderer.

answer Jun 29, 2013 by anonymous
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