Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=73956
Cc: 10.0 <[email protected]>
Tested-by: Ahmed Allam <[email protected]>
---
src/mesa/state_tracker/st_cb_fbo.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/mesa/state_tracker/st_cb_fbo.c
b/src/mesa/state_tracker/st_cb_fbo.c
index 637f7ee..eca04b8 100644
--- a/src/mesa/state_tracker/st_cb_fbo.c
+++ b/src/mesa/state_tracker/st_cb_fbo.c
@@ -700,7 +700,8 @@ st_ReadBuffer(struct gl_context *ctx, GLenum buffer)
(void) buffer;
/* add the renderbuffer on demand */
- st_manager_add_color_renderbuffer(st, fb, fb->_ColorReadBufferIndex);
+ if (fb->_ColorReadBufferIndex >= 0)
+ st_manager_add_color_renderbuffer(st, fb, fb->_ColorReadBufferIndex);
}
--
1.7.10.4
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