[SDL] Bad math in SDL_RenderCopy Mason Wheeler to sdl When I tried to render an image using something other than NULL for srcrect, it got horribly distorted. I traced it down to the fact that the math in the rectangle adjustments performed just before the call to renderer->RenderCopy is written inside out. It should look like this: if (dstrect->w != real_dstrect.w) { int deltax = (dstrect->x - real_dstrect.x); int deltaw = (dstrect->w - real_dstrect.w); real_srcrect.x += (deltax * real_srcrect.w) / dstrect->w; real_srcrect.w += (deltaw * real_srcrect.w) / dstrect->w; } if (dstrect->h != real_dstrect.h) { int deltay = (dstrect->y - real_dstrect.y); int deltah = (dstrect->h - real_dstrect.h); real_srcrect.y += (deltay * real_srcrect.h) / dstrect->h; real_srcrect.h += (deltah * real_srcrect.h) / dstrect->h;

#!/bin/sh
#
# Print the current source revision, if available

srcdir=`dirname $0`/..

if [ -d $srcdir/.svn ]; then
    cd $srcdir
    (svnversion -c 2>/dev/null || svnversion .) | \
        sed -e 's,\([0-9]*\)[A-Z]*,\1,' \
            -e 's,[0-9]*:\([0-9]*\)[A-Z]*,\1,'
else
     cd $srcdir
     git svn info | grep Revision | awk '{ print $2 }'
fi