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authorBrian Paul <brian.paul@tungstengraphics.com>2008-10-06 11:34:01 -0600
committerBrian Paul <brian.paul@tungstengraphics.com>2008-10-06 11:34:01 -0600
commit6e34fc0d374263ca40855ba4dcc237d961a79e34 (patch)
tree93f6d8ed7ee6394896564f8ee49b9e49b8861c36
parent145d49838fe268c8524a369d59cb9f771657ad59 (diff)
mesa: adjust texcoords for swrast sprite points.
Fixes glean pointSprite test w/ software rendering
-rw-r--r--src/mesa/swrast/s_points.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mesa/swrast/s_points.c b/src/mesa/swrast/s_points.c
index 846c485f15..61ff4d0b84 100644
--- a/src/mesa/swrast/s_points.c
+++ b/src/mesa/swrast/s_points.c
@@ -129,13 +129,13 @@ sprite_point(GLcontext *ctx, const SWvertex *vert)
s = 0.0;
dsdx = 1.0 / size;
if (ctx->Point.SpriteOrigin == GL_LOWER_LEFT) {
- t0 = 0.0;
dtdy = 1.0 / size;
+ t0 = 0.5 * dtdy;
}
else {
/* GL_UPPER_LEFT */
- t0 = 1.0;
dtdy = -1.0 / size;
+ t0 = 1.0 + 0.5 * dtdy;
}
ATTRIB_LOOP_BEGIN