[gtk/wip/chergert/glproto] track if we're in a frame

[Christian Hergert <chergert src gnome org>]

commit 601d21f7d7c00b1f927ceeb00d7a2a7bc8164cdd
Author: Christian Hergert <chergert redhat com>
Date:   Wed Jan 27 14:06:12 2021 -0800

    track if we're in a frame

 gsk/next/gskglcommandqueue.c        | 2 ++
 gsk/next/gskglcommandqueueprivate.h | 3 +++
 2 files changed, 5 insertions(+)
---
diff --git a/gsk/next/gskglcommandqueue.c b/gsk/next/gskglcommandqueue.c
index 6a8bd2a02d..8ac3c97522 100644
--- a/gsk/next/gskglcommandqueue.c
+++ b/gsk/next/gskglcommandqueue.c
@@ -884,6 +884,7 @@ gsk_gl_command_queue_begin_frame (GskGLCommandQueue *self)
   g_return_if_fail (self->batches->len == 0);
 
   self->tail_batch_index = -1;
+  self->in_frame = TRUE;
 }
 
 /**
@@ -925,6 +926,7 @@ gsk_gl_command_queue_end_frame (GskGLCommandQueue *self)
   self->batch_uniforms->len = 0;
   self->batch_binds->len = 0;
   self->tail_batch_index = -1;
+  self->in_frame = FALSE;
 }
 
 gboolean
diff --git a/gsk/next/gskglcommandqueueprivate.h b/gsk/next/gskglcommandqueueprivate.h
index 993b75cf59..9f9171a133 100644
--- a/gsk/next/gskglcommandqueueprivate.h
+++ b/gsk/next/gskglcommandqueueprivate.h
@@ -106,6 +106,9 @@ struct _GskGLCommandQueue
    */
   int tail_batch_index;
 
+  /* If we're inside a begin/end_frame pair */
+  guint in_frame : 1;
+
   /* If we're inside of a begin_draw()/end_draw() pair. */
   guint in_draw : 1;
 };