From: Brian <brian.paul@tungstengraphics.com>
Date: Fri, 8 Jun 2007 19:10:01 +0000 (-0600)
Subject: fix glReadPixels parameters to handle odd-width windows correctly
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=39d221ef142d24441e5d741d0902624020deebb8;p=mesa.git

fix glReadPixels parameters to handle odd-width windows correctly
---

diff --git a/progs/tests/drawbuffers.c b/progs/tests/drawbuffers.c
index d2e826fadfe..5e89569380a 100644
--- a/progs/tests/drawbuffers.c
+++ b/progs/tests/drawbuffers.c
@@ -74,8 +74,9 @@ Display(void)
                 buffer);
    /* top half = colorbuffer 1 */
    glReadBuffer(GL_COLOR_ATTACHMENT1_EXT);
-   glReadPixels(0, Height/2, Width, Height / 2, GL_RGBA, GL_UNSIGNED_BYTE,
-                buffer + Width * Height / 2 * 4);
+   glReadPixels(0, Height/2, Width, Height - Height / 2,
+                GL_RGBA, GL_UNSIGNED_BYTE,
+                buffer + Width * (Height / 2) * 4);
 
    /* draw to window */
    glUseProgram_func(0);