Account for big endian support for RGB/BGR images #1930
Merged
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Add big endian blocks in image_frombuffer() for RGB and BGR images,
similarly to how RGBA are handled. This also seems to match examples
in SDL documentation. This fixes test_frombuffer_BGR
and test_frombuffer_RGB on big endian machines (see #1291).
Disclaimer: my big endian hardware is headless and I haven't looked at X forwarding yet, so I have no clue if this works correctly, or if both the tests and the code are doing it other way around ;-).