Mesa (master): i965: Guard access to gl_Layer by extension #ifdef
Kristian Høgsberg
krh at kemper.freedesktop.org
Fri Aug 15 23:09:21 UTC 2014
Module: Mesa
Branch: master
Commit: 14c1a2a94c3d7c0ba375d2b0953b025112b21392
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=14c1a2a94c3d7c0ba375d2b0953b025112b21392
Author: Kristian Høgsberg <krh at bitplanet.net>
Date: Fri Aug 15 15:59:59 2014 -0700
i965: Guard access to gl_Layer by extension #ifdef
Only assign gl_Layer if we have GL_AMD_vertex_shader_layer. Gen6 doesn't
(currently) have that extension, but it also doesn't support layered
rendering.
Signed-off-by: Kristian Høgsberg <krh at bitplanet.net>
Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen at intel.com>
Tested-by: Jordan Justen <jordan.l.justen at intel.com>
---
src/mesa/drivers/dri/i965/brw_meta_fast_clear.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/src/mesa/drivers/dri/i965/brw_meta_fast_clear.c b/src/mesa/drivers/dri/i965/brw_meta_fast_clear.c
index c6540f2..5f3817b 100644
--- a/src/mesa/drivers/dri/i965/brw_meta_fast_clear.c
+++ b/src/mesa/drivers/dri/i965/brw_meta_fast_clear.c
@@ -97,7 +97,9 @@ brw_bind_rep_write_shader(struct brw_context *brw, float *color)
"uniform int layer;\n"
"void main()\n"
"{\n"
+ "#ifdef GL_AMD_vertex_shader_layer\n"
" gl_Layer = gl_InstanceID;\n"
+ "#endif\n"
" gl_Position = position;\n"
"}\n";
const char *fs_source =
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