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compositor-drm: Calculate more cursor state up front 

Make drm_output_set_cursor more deterministic, by calculating more state
and performing more plane manipulation, inside
drm_output_prepare_cursor_view.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
This commit is contained in:
Daniel Stone 2017-04-04 17:54:21 +01:00 committed by Pekka Paalanen
parent 903721a621
commit a7cba1d4cd
1 changed files with 16 additions and 23 deletions
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39
libweston/compositor-drm.c
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@ -1241,6 +1241,7 @@ drm_output_prepare_cursor_view(struct drm_output *output,
struct drm_backend *b = to_drm_backend(output->base.compositor);
struct weston_buffer_viewport *viewport = &ev->surface->buffer_viewport;
struct wl_shm_buffer *shmbuf;
float x, y;
if (b->cursors_are_broken)
return NULL;
@ -1279,6 +1280,9 @@ drm_output_prepare_cursor_view(struct drm_output *output,
return NULL;
output->cursor_view = ev;
weston_view_to_global_float(ev, 0, 0, &x, &y);
output->cursor_plane.x = x;
output->cursor_plane.y = y;
return &output->cursor_plane;
}
@ -1324,24 +1328,17 @@ static void
drm_output_set_cursor(struct drm_output *output)
{
struct weston_view *ev = output->cursor_view;
struct weston_buffer *buffer;
struct drm_backend *b = to_drm_backend(output->base.compositor);
EGLint handle;
struct gbm_bo *bo;
float x, y;
output->cursor_view = NULL;
if (ev == NULL) {
drmModeSetCursor(b->drm.fd, output->crtc_id, 0, 0, 0);
output->cursor_plane.x = INT32_MIN;
output->cursor_plane.y = INT32_MIN;
return;
}
buffer = ev->surface->buffer_ref.buffer;
if (buffer &&
pixman_region32_not_empty(&output->cursor_plane.damage)) {
if (pixman_region32_not_empty(&output->cursor_plane.damage)) {
pixman_region32_fini(&output->cursor_plane.damage);
pixman_region32_init(&output->cursor_plane.damage);
output->current_cursor ^= 1;
@ -1356,22 +1353,14 @@ drm_output_set_cursor(struct drm_output *output)
}
}
weston_view_to_global_float(ev, 0, 0, &x, &y);
x = (output->cursor_plane.x - output->base.x) *
output->base.current_scale;
y = (output->cursor_plane.y - output->base.y) *
output->base.current_scale;
/* From global to output space, output transform is guaranteed to be
* NORMAL by drm_output_prepare_cursor_view().
*/
x = (x - output->base.x) * output->base.current_scale;
y = (y - output->base.y) * output->base.current_scale;
if (output->cursor_plane.x != x || output->cursor_plane.y != y) {
if (drmModeMoveCursor(b->drm.fd, output->crtc_id, x, y)) {
weston_log("failed to move cursor: %m\n");
b->cursors_are_broken = 1;
}
output->cursor_plane.x = x;
output->cursor_plane.y = y;
if (drmModeMoveCursor(b->drm.fd, output->crtc_id, x, y)) {
weston_log("failed to move cursor: %m\n");
b->cursors_are_broken = 1;
}
}
@ -1400,6 +1389,10 @@ drm_assign_planes(struct weston_output *output_base, void *repaint_data)
pixman_region32_init(&overlap);
primary = &output_base->compositor->primary_plane;
output->cursor_view = NULL;
output->cursor_plane.x = INT32_MIN;
output->cursor_plane.y = INT32_MIN;
wl_list_for_each_safe(ev, next, &output_base->compositor->view_list, link) {
struct weston_surface *es = ev->surface;