File 0001-Set-pixels-in-SDL_CreateYUVOverlay-Fix-164... of Package sdl12_compat

Overview Repositories Revisions Requests Users Attributes Meta

File 0001-Set-pixels-in-SDL_CreateYUVOverlay-Fix-164.patch of Package sdl12_compat (Revision 1c15819b7142dcce2837952aca2d0131)

Currently displaying revision 1c15819b7142dcce2837952aca2d0131 , Show latest

From f4980108b0fbe59e04aaba6b18be760a607ab923 Mon Sep 17 00:00:00 2001
From: David Gow <david@ingeniumdigital.com>
Date: Mon, 7 Mar 2022 16:01:50 +0800
Subject: [PATCH] Set 'pixels' in SDL_CreateYUVOverlay() (Fix #164)

Some applications, such as mplayer with -vo sdl will access the 'pixels'
member of an SDL_Overlay immediately after creating it, without ever
locking it. This works on (at least some backends for) SDL 1.2, but
crashed on sdl12-compat, as pixels remained unset until
SDL_LockYUVOverlay() is called.

Set pixels in SDL_CreateYUVOverlay(), as well as hwdata->dirty, which
makes it possible to have a working YUV overlay without ever
locking/unlocking it. This is required for mplayer's sdl vo backend to
function.

Fixes issue #164
---
 src/SDL12_compat.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/SDL12_compat.c b/src/SDL12_compat.c
index b3a411e..b5a851b 100644
--- a/src/SDL12_compat.c
+++ b/src/SDL12_compat.c
@@ -6337,6 +6337,10 @@ SDL_CreateYUVOverlay(int w, int h, Uint32 format12, SDL12_Surface *display12)
     retval->hw_overlay = 1;
     retval->pitches = hwdata->pitches;
 
+    /* Some programs (e.g. mplayer) access pixels without locking. */
+    retval->pixels = hwdata->pixels;
+    hwdata->dirty = SDL_TRUE;
+
     return retval;
 }
 
-- 
2.36.1

Places

File 0001-Set-pixels-in-SDL_CreateYUVOverlay-Fix-164.patch of Package sdl12_compat (Revision 1c15819b7142dcce2837952aca2d0131)

Places