Fix window capture

include/capture/kms_vaapi.h

@@ -9,6 +9,7 @@ typedef struct _XDisplay Display;
 
 typedef struct {
     gsr_egl *egl;
+    Display *dpy;
     const char *display_to_capture; /* if this is "screen", then the entire x11 screen is captured (all displays). A copy is made of this */
     gsr_gpu_info gpu_inf;
     const char *card_path; /* reference */

include/capture/xcomposite_cuda.h

@@ -10,6 +10,7 @@ typedef struct _XDisplay Display;
 
 typedef struct {
     gsr_egl *egl;
+    Display *dpy;
     Window window;
     bool follow_focused; /* If this is set then |window| is ignored */
     vec2i region_size; /* This is currently only used with |follow_focused| */

include/capture/xcomposite_vaapi.h

@@ -10,6 +10,7 @@ typedef struct _XDisplay Display;
 
 typedef struct {
     gsr_egl *egl;
+    Display *dpy;
     Window window;
     bool follow_focused; /* If this is set then |window| is ignored */
     vec2i region_size; /* This is currently only used with |follow_focused| */