pmaports/temp/weston/0006-compositor-fbdev-fix-start-up-assertion.patch

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From acd71fb0af82fb6065dd239865bd18bbbf1ceab4 Mon Sep 17 00:00:00 2001
From: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Date: Tue, 15 Aug 2017 10:35:09 +0300
Subject: [PATCH] compositor-fbdev: fix start-up assertion
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Fixes the failure to start with fbdev-backend:
weston: /home/pq/git/weston/libweston/compositor.c:4733: weston_compositor_add_pending_output: Assertion `output->disable' failed.
The disable hook was completely unimplemented, and the regression was
caused by e952a01c3b42c7c870091e71488e9469bd897153
"libweston: move asserts to add_pending_output()".
It used to work because Weston never tried to explicitly disable the
fbdev output, but now it is hitting the assert.
Fix it by tentatively implementing a disable hook. It has not been
tested to work for explicit disabling, but it does solve the regression.
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=102208
Cc: bluescreen_avenger@verizon.net
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Armin Krezović <krezovic.armin@gmail.com>
Tested-by: n3rdopolis <bluescreen_avenger@verizon.net>
---
libweston/compositor-fbdev.c | 23 +++++++++++++++++------
1 file changed, 17 insertions(+), 6 deletions(-)
diff --git a/libweston/compositor-fbdev.c b/libweston/compositor-fbdev.c
index e80a5040..6a305385 100644
--- a/libweston/compositor-fbdev.c
+++ b/libweston/compositor-fbdev.c
@@ -473,6 +473,21 @@ fbdev_output_enable(struct weston_output *base)
}
static int
+fbdev_output_disable_handler(struct weston_output *base)
+{
+ if (!base->enabled)
+ return 0;
+
+ /* Close the frame buffer. */
+ fbdev_output_disable(base);
+
+ if (base->renderer_state != NULL)
+ pixman_renderer_output_destroy(base);
+
+ return 0;
+}
+
+static int
fbdev_output_create(struct fbdev_backend *backend,
const char *device)
{
@@ -497,7 +512,7 @@ fbdev_output_create(struct fbdev_backend *backend,
output->base.name = strdup("fbdev");
output->base.destroy = fbdev_output_destroy;
- output->base.disable = NULL;
+ output->base.disable = fbdev_output_disable_handler;
output->base.enable = fbdev_output_enable;
weston_output_init(&output->base, backend->compositor);
@@ -539,11 +554,7 @@ fbdev_output_destroy(struct weston_output *base)
weston_log("Destroying fbdev output.\n");
- /* Close the frame buffer. */
- fbdev_output_disable(base);
-
- if (base->renderer_state != NULL)
- pixman_renderer_output_destroy(base);
+ fbdev_output_disable_handler(base);
/* Remove the output. */
weston_output_destroy(&output->base);