Commit 715e070d299fc547cce8c52915b75e6316af6bff
2019-09-06T08:50:19
SDL_blit_N.c: Correct vec_perm() application on little-endian 64-bit PowerPC The LE transformation for vec_perm has an implicit assumption that the permutation is being used to reorder vector elements (in this case 4-byte integer word elements), not to reorder bytes within those elements. Although this is legal behavior, it is not anticipated by the transformation performed by the compilers. This causes pygame-1.9.1 test failure on PPC64LE because blitted pixmaps are corrupted there due to how SDL uses vec_perm(). From RedHat / Fedora: https://bugzilla.redhat.com/show_bug.cgi?id=1392465 Original patch was provided by: Menanteau Guy <menantea@linux.vnet.ibm.com>