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virtio-gpu: update old resource too. 

When switching scanout from one resource to another we must update the
scanout_bitmask field for both new (set bit) and old (clear bit)
resource.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20180702162443.16796-3-kraxel@redhat.com
This commit is contained in:
Gerd Hoffmann 2018-07-02 18:24:42 +02:00
parent da566a18a7
commit c806cfa036
1 changed files with 6 additions and 1 deletions
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7
hw/display/virtio-gpu.c
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@ -590,7 +590,7 @@ static void virtio_unref_resource(pixman_image_t *image, void *data)
static void virtio_gpu_set_scanout(VirtIOGPU *g,
struct virtio_gpu_ctrl_command *cmd)
{
struct virtio_gpu_simple_resource *res;
struct virtio_gpu_simple_resource *res, *ores;
struct virtio_gpu_scanout *scanout;
pixman_format_code_t format;
uint32_t offset;
@ -664,6 +664,11 @@ static void virtio_gpu_set_scanout(VirtIOGPU *g,
dpy_gfx_replace_surface(g->scanout[ss.scanout_id].con, scanout->ds);
}
ores = virtio_gpu_find_resource(g, scanout->resource_id);
if (ores) {
ores->scanout_bitmask &= ~(1 << ss.scanout_id);
}
res->scanout_bitmask |= (1 << ss.scanout_id);
scanout->resource_id = ss.resource_id;
scanout->x = ss.r.x;