Module: Mesa Branch: master Commit: a4c952f36f0c6b55f1410bc678b21f75de253a74 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=a4c952f36f0c6b55f1410bc678b21f75de253a74
Author: Mathias Fröhlich <mathias.froehl...@web.de> Date: Thu Dec 1 20:48:10 2011 +0100 swrast: Fix signed/unsigned problems with negative strides. In swrast_map_renderbuffer negative strides lead to render buffer map pointers that are off by 2^32. Make sure that intermediate negative values are not converted to an unsigned. Signed-off-by: Mathias Froehlich <mathias.froehl...@web.de> Reviewed-by: Brian Paul <bri...@vmware.com> --- src/mesa/drivers/dri/swrast/swrast.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/src/mesa/drivers/dri/swrast/swrast.c b/src/mesa/drivers/dri/swrast/swrast.c index bc115e8..6297604 100644 --- a/src/mesa/drivers/dri/swrast/swrast.c +++ b/src/mesa/drivers/dri/swrast/swrast.c @@ -419,8 +419,8 @@ swrast_map_renderbuffer(struct gl_context *ctx, stride = -stride; } - map += y * stride; - map += x * cpp; + map += (GLsizei)y * stride; + map += (GLsizei)x * cpp; *out_map = map; *out_stride = stride; _______________________________________________ mesa-commit mailing list mesa-commit@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-commit