Cffi pixelaccess #476
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Cffi pixelaccess #476
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Reorganized to remove ImagingMemoryInstance struct, only saving the three pointers that we need (image, image8, image32) and the x/ysize ints.
Make sure we clear the pyaccess object each time we reset the self.im object
wiredfool
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Jan 31, 2014
Cffi PixelAccess object, Uint16 support in PixelAccess
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Fixes #248, #67
This is a python /cffi implementation of the PixelAccess object and assorted hooks in Image.getpixel/putpixel. It is enabled by default for pypy, not for the c-python implementations. It requires cffi to be installed at runtime, there are no build dependencies.
This branch is (knock on wood) complete and consistent with the existing c-api implementation of pixel access (assuming and including #455 the i16-pixelaccess branch patches). It appears to be fast enough, but I haven't spent a ton of time tweaking it for ultimate speed.
I've tested this on little-endian and big-endian systems -- all tests pass on both platforms. (note that I tested in Python 2.7 on ppc, not pypy. I don't think pypy has made it to ppc yet. )