[Mesa-stable] [PATCH] swrast: Fix the coordinates passed to _mesa_regions_overlap()

[Ian Romanick]

Is this related to a bugzilla or a failing test case?  If not, could we
get it piglit for it?

Either way, looking at _mesa_regions_overlap (which could use a comment
saying that the rectangles are inclusive), I believe this is correct.

Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>

On 11/23/2015 05:35 PM, Anuj Phogat wrote:
> Cc: "11.1" <mesa-stable at lists.freedesktop.org>
> Signed-off-by: Anuj Phogat <anuj.phogat at gmail.com>
> ---
>  src/mesa/swrast/s_copypix.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/src/mesa/swrast/s_copypix.c b/src/mesa/swrast/s_copypix.c
> index 0dbccc0..31e1d3d 100644
> --- a/src/mesa/swrast/s_copypix.c
> +++ b/src/mesa/swrast/s_copypix.c
> @@ -53,8 +53,10 @@ regions_overlap(GLint srcx, GLint srcy,
>                  GLfloat zoomX, GLfloat zoomY)
>  {
>     if (zoomX == 1.0F && zoomY == 1.0F) {
> -      return _mesa_regions_overlap(srcx, srcy, srcx + width, srcy + height,
> -                                   dstx, dsty, dstx + width, dsty + height);
> +      return _mesa_regions_overlap(srcx, srcy,
> +                                   srcx + width - 1, srcy + height - 1,
> +                                   dstx, dsty,
> +                                   dstx + width - 1, dsty + height - 1);
>     }
>     else {
>        /* add one pixel of slop when zooming, just to be safe */
>