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vulkan/xcb: Don't try to create xcb window with non-xcb display

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Non-xcb display does not have a xcb_connection and trying
to create xcb window with wild pointer can cause segfault.
This commit is contained in:
Yeongjin Jeong 2019-08-09 18:43:06 +09:00 committed by Matthew Waters
parent 338a32b672
commit 94671be428
1 changed files with 9 additions and 1 deletions
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10
gst-libs/gst/vulkan/xcb/gstvkwindow_xcb.c
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@ -271,9 +271,17 @@ static gboolean
gst_vulkan_window_xcb_open (GstVulkanWindow * window, GError ** error)
{
GstVulkanWindowXCB *window_xcb = GST_VULKAN_WINDOW_XCB (window);
GstVulkanDisplayXCB *display_xcb = (GstVulkanDisplayXCB *) window->display;
GstVulkanDisplayXCB *display_xcb;
xcb_connection_t *connection;
if (!GST_IS_VULKAN_DISPLAY_XCB (window->display)) {
g_set_error (error, GST_VULKAN_WINDOW_ERROR,
GST_VULKAN_WINDOW_ERROR_RESOURCE_UNAVAILABLE,
"Cannot create an XCB window from a non-XCB display");
goto failure;
}
display_xcb = GST_VULKAN_DISPLAY_XCB (window->display);
connection = GST_VULKAN_DISPLAY_XCB_CONNECTION (display_xcb);
if (connection == NULL) {
g_set_error (error, GST_VULKAN_WINDOW_ERROR,