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-rw-r--r--progs/tests/drawbuffers.c5
1 files changed, 3 insertions, 2 deletions
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);