# HG changeset patch
# User Michael Pavone <pavone@retrodev.com>
# Date 1589085455 25200
# Node ID 06c25babe464e1a5eaa1f2b98675c0d8594cc36a
# Parent  33d5b9b77aef7041283e7317aa6780b8f15df8fe
Don't hold frame queue mutex while rendering

diff -r 33d5b9b77aef -r 06c25babe464 render_sdl.c
--- a/render_sdl.c	Sat May 09 21:35:42 2020 -0700
+++ b/render_sdl.c	Sat May 09 21:37:35 2020 -0700
@@ -1709,13 +1709,16 @@
 				SDL_CondWait(frame_ready, frame_mutex);
 			}
 			for (int i = 0; i < frame_queue_len; i++)
+			while (frame_queue_len)
 			{
 				frame f = frame_queue[frame_queue_read++];
 				frame_queue_read &= 0x3;
+				frame_queue_len--;
+				SDL_UnlockMutex(frame_mutex);
 				process_framebuffer(f.buffer, f.which, f.width);
 				release_buffer(f.buffer);
+				SDL_LockMutex(frame_mutex);
 			}
-			frame_queue_len = 0;
 		}
 	
 	SDL_UnlockMutex(frame_mutex);