From: Eric Anholt <eric@anholt.net>
Date: Thu, 29 Jan 2015 19:33:42 +0000 (-0800)
Subject: vc4: Fix point size handling when it's the first output.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2b9c3bace78aaf0728e40b4b4cf7124e6a138696;p=mesa.git

vc4: Fix point size handling when it's the first output.
---

diff --git a/src/gallium/drivers/vc4/vc4_program.c b/src/gallium/drivers/vc4/vc4_program.c
index 9f1f01836fd..3f0de2caee1 100644
--- a/src/gallium/drivers/vc4/vc4_program.c
+++ b/src/gallium/drivers/vc4/vc4_program.c
@@ -1931,7 +1931,7 @@ emit_point_size_write(struct vc4_compile *c)
 {
         struct qreg point_size;
 
-        if (c->output_point_size_index)
+        if (c->output_point_size_index != -1)
                 point_size = c->outputs[c->output_point_size_index + 3];
         else
                 point_size = qir_uniform_f(c, 1.0);