From Bug #36: There are a couple of issues with the selection of Altivec alpha-blitting routines in CalculateAlphaBlit() in src/video/SDL_Blit_A.c. 1) There's no check for the presence of Altivec when checking if the Blit32to565PixelAlphaAltivec() routine can be selected. 2) Altivec cannot be used in video memory, and there's no check if the destination surface is a hardware surface. (Alpha-blitting to a hardware surface with GPU support is a bad idea, but somebody's bound to do it anyway.) Patch to fix these attached.

Makefile.in
Makefile
configure
config.cache
config.log
config.status
autom4te*
aclocal.m4
checkkeys
graywin
loopwave
testalpha
testbitmap
testcdrom
testcpuinfo
testerror
testgamma
testgl
testhread
testjoystick
testkeys
testlock
testoverlay
testoverlay2
testpalette
testsem
testsprite
testtimer
testtypes
testver
testvidinfo
testwin
testwm
threadwin