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-rw-r--r--src/glx/glxcmds.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/src/glx/glxcmds.c b/src/glx/glxcmds.c
index 7016fdf2a8..d9e370c199 100644
--- a/src/glx/glxcmds.c
+++ b/src/glx/glxcmds.c
@@ -481,7 +481,7 @@ glXWaitGL(void)
{
struct glx_context *gc = __glXGetCurrentContext();
- if (gc && gc->vtable->wait_gl)
+ if (gc && gc->vtable && gc->vtable->wait_gl)
gc->vtable->wait_gl(gc);
}
@@ -494,7 +494,7 @@ glXWaitX(void)
{
struct glx_context *gc = __glXGetCurrentContext();
- if (gc && gc->vtable->wait_x)
+ if (gc && gc->vtable && gc->vtable->wait_x)
gc->vtable->wait_x(gc);
}
@@ -503,7 +503,7 @@ glXUseXFont(Font font, int first, int count, int listBase)
{
struct glx_context *gc = __glXGetCurrentContext();
- if (gc && gc->vtable->use_x_font)
+ if (gc && gc->vtable && gc->vtable->use_x_font)
gc->vtable->use_x_font(gc, font, first, count, listBase);
}
@@ -2344,7 +2344,7 @@ __glXBindTexImageEXT(Display * dpy,
{
struct glx_context *gc = __glXGetCurrentContext();
- if (gc == NULL || gc->vtable->bind_tex_image == NULL)
+ if (gc == NULL || gc->vtable == NULL || gc->vtable->bind_tex_image == NULL)
return;
gc->vtable->bind_tex_image(dpy, drawable, buffer, attrib_list);
@@ -2355,7 +2355,7 @@ __glXReleaseTexImageEXT(Display * dpy, GLXDrawable drawable, int buffer)
{
struct glx_context *gc = __glXGetCurrentContext();
- if (gc == NULL || gc->vtable->release_tex_image == NULL)
+ if (gc == NULL || gc->vtable == NULL || gc->vtable->release_tex_image == NULL)
return;
gc->vtable->release_tex_image(dpy, drawable, buffer);