From: Brian Paul <brianp@vmware.com>
Date: Wed, 26 Aug 2009 17:53:25 +0000 (-0600)
Subject: progs/glsl: change samplers.c to better test sampler/texture indexing
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=f6d34c20585ae9b4fb07ec2f2850f04dc9a9bc29;p=mesa.git

progs/glsl: change samplers.c to better test sampler/texture indexing

Now the left half is yellow and the right half is red, with the gradients
going in opposite directions.
---

diff --git a/progs/glsl/samplers.c b/progs/glsl/samplers.c
index 113e5bbeff1..87dad5d8575 100644
--- a/progs/glsl/samplers.c
+++ b/progs/glsl/samplers.c
@@ -211,10 +211,18 @@ InitTextures(void)
       for (y = 0; y < stripeSize; y++) {
          for (x = 0; x < size; x++) {
             GLint k = 4 * ((ypos + y) * size + x);
-            texImage[k + 0] = intensity;
-            texImage[k + 1] = intensity;
-            texImage[k + 2] = 0;
-            texImage[k + 3] = 255;
+            if (x < size / 2) {
+               texImage[k + 0] = intensity;
+               texImage[k + 1] = intensity;
+               texImage[k + 2] = 0;
+               texImage[k + 3] = 255;
+            }
+            else {
+               texImage[k + 0] = 255 - intensity;
+               texImage[k + 1] = 0;
+               texImage[k + 2] = 0;
+               texImage[k + 3] = 255;
+            }
          }
       }