Józef Kucia : wined3d: Exit early in shader_glsl_init_transform_feedback() if stream output is disabled.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: d58e44bfeb9a7125f62646e7426292707597d770
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=d58e44bfeb9a7125f62646e742...

Author: Józef Kucia <jkucia(a)codeweavers.com>
Date:   Wed Mar 29 15:11:06 2017 +0200

wined3d: Exit early in shader_glsl_init_transform_feedback() if stream output is disabled.

Signed-off-by: Józef Kucia <jkucia(a)codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/wined3d/glsl_shader.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dlls/wined3d/glsl_shader.c b/dlls/wined3d/glsl_shader.c
index 0eccaaa..b3cd500 100644
--- a/dlls/wined3d/glsl_shader.c
+++ b/dlls/wined3d/glsl_shader.c
@@ -840,6 +840,9 @@ static void shader_glsl_init_transform_feedback(const struct wined3d_context *co
     const char **varyings;
     char *strings;
 
+    if (!so_desc->element_count)
+        return;
+
     if (!gl_info->supported[ARB_TRANSFORM_FEEDBACK3])
     {
         FIXME("ARB_transform_feedback3 not supported by OpenGL implementation.\n");