1From cbb008443c4aebfedcb608144fb8decbecc0685b Mon Sep 17 00:00:00 2001
2From: Jeffy Chen <jeffy.chen@rock-chips.com>
3Date: Thu, 19 Nov 2020 09:41:47 +0800
4Subject: [PATCH 17/93] backend-drm: Support mirror mode
5
6Set env "WESTON_DRM_MIRROR" to enable mirror mode, and set env
7"WESTON_DRM_KEEP_RATIO" to keep the aspect ratio.
8
9Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
10---
11 clients/desktop-shell.c               |   9 +-
12 desktop-shell/shell.c                 |   3 +
13 include/libweston/libweston.h         |   4 +
14 libweston/backend-drm/drm-gbm.c       |   4 +-
15 libweston/backend-drm/drm-internal.h  |  10 +
16 libweston/backend-drm/drm.c           | 330 +++++++++++++++++++++++++-
17 libweston/backend-drm/meson.build     |   3 +-
18 libweston/backend-drm/state-propose.c |  23 +-
19 libweston/compositor.c                |  24 +-
20 libweston/input.c                     |   7 +
21 meson.build                           |   5 +
22 11 files changed, 401 insertions(+), 21 deletions(-)
23
24diff --git a/clients/desktop-shell.c b/clients/desktop-shell.c
25index 6eb9775..2d2fd83 100644
26--- a/clients/desktop-shell.c
27+++ b/clients/desktop-shell.c
28@@ -1023,9 +1023,14 @@ desktop_shell_configure(void *data,
29 			struct wl_surface *surface,
30 			int32_t width, int32_t height)
31 {
32-	struct window *window = wl_surface_get_user_data(surface);
33-	struct surface *s = window_get_user_data(window);
34+	struct window *window;
35+	struct surface *s;
36+
37+	if (!surface)
38+		return;
39
40+	window = wl_surface_get_user_data(surface);
41+	s = window_get_user_data(window);
42 	s->configure(data, desktop_shell, edges, window, width, height);
43 }
44
45diff --git a/desktop-shell/shell.c b/desktop-shell/shell.c
46index 89ea491..7aa787c 100644
47--- a/desktop-shell/shell.c
48+++ b/desktop-shell/shell.c
49@@ -3857,6 +3857,9 @@ weston_view_set_initial_position(struct weston_view *view,
50 	}
51
52 	wl_list_for_each(output, &compositor->output_list, link) {
53+		if (output->unavailable)
54+			continue;
55+
56 		if (pixman_region32_contains_point(&output->region, ix, iy, NULL)) {
57 			target_output = output;
58 			break;
59diff --git a/include/libweston/libweston.h b/include/libweston/libweston.h
60index d35963f..a8ec105 100644
61--- a/include/libweston/libweston.h
62+++ b/include/libweston/libweston.h
63@@ -573,7 +573,11 @@ struct weston_output {
64 	 */
65 	void (*detach_head)(struct weston_output *output,
66 			    struct weston_head *head);
67+
68+	bool unavailable;
69 };
70+#define weston_output_valid(o) \
71+	((o) && !(o)->destroying && !(o)->unavailable)
72
73 enum weston_pointer_motion_mask {
74 	WESTON_POINTER_MOTION_ABS = 1 << 0,
75diff --git a/libweston/backend-drm/drm-gbm.c b/libweston/backend-drm/drm-gbm.c
76index 76fa79f..d10cc40 100644
77--- a/libweston/backend-drm/drm-gbm.c
78+++ b/libweston/backend-drm/drm-gbm.c
79@@ -275,8 +275,8 @@ drm_output_fini_egl(struct drm_output *output)
80 	/* Destroying the GBM surface will destroy all our GBM buffers,
81 	 * regardless of refcount. Ensure we destroy them here. */
82 	if (!b->shutting_down &&
83-	    output->scanout_plane->state_cur->fb &&
84-	    output->scanout_plane->state_cur->fb->type == BUFFER_GBM_SURFACE) {
85+	    output->scanout_plane->state_cur->fb && (output->is_mirror ||
86+	    output->scanout_plane->state_cur->fb->type == BUFFER_GBM_SURFACE)) {
87 		drm_plane_reset_state(output->scanout_plane);
88 	}
89
90diff --git a/libweston/backend-drm/drm-internal.h b/libweston/backend-drm/drm-internal.h
91index af82922..037c937 100644
92--- a/libweston/backend-drm/drm-internal.h
93+++ b/libweston/backend-drm/drm-internal.h
94@@ -362,6 +362,8 @@ struct drm_backend {
95
96 	int virtual_width;
97 	int virtual_height;
98+
99+	bool mirror_mode;
100 };
101
102 struct drm_mode {
103@@ -617,6 +619,10 @@ struct drm_output {
104 	int current_image;
105 	pixman_region32_t previous_damage;
106
107+	/* Wrap fb for scale/rotate usage */
108+	struct drm_fb *wrap[2];
109+	int next_wrap;
110+
111 	struct vaapi_recorder *recorder;
112 	struct wl_listener recorder_frame_listener;
113
114@@ -631,6 +637,10 @@ struct drm_output {
115
116 	/* The dummy framebuffer for SET_CRTC. */
117 	struct drm_fb *fb_dummy;
118+
119+	bool is_mirror;
120+
121+	pixman_box32_t plane_bounds;
122 };
123
124 void
125diff --git a/libweston/backend-drm/drm.c b/libweston/backend-drm/drm.c
126index a2f215f..159abee 100644
127--- a/libweston/backend-drm/drm.c
128+++ b/libweston/backend-drm/drm.c
129@@ -68,6 +68,11 @@
130 #include "linux-dmabuf-unstable-v1-server-protocol.h"
131 #include "linux-explicit-synchronization.h"
132
133+#ifdef HAVE_RGA
134+#include <rga/rga.h>
135+#include <rga/RgaApi.h>
136+#endif
137+
138 static const char default_seat[] = "seat0";
139
140 static inline bool
141@@ -86,6 +91,118 @@ drm_head_is_external(struct drm_head *head)
142 	}
143 };
144
145+static int
146+drm_output_get_rotation(struct drm_output *output)
147+{
148+	switch (output->base.transform) {
149+	case WL_OUTPUT_TRANSFORM_90:
150+	case WL_OUTPUT_TRANSFORM_FLIPPED_90:
151+		return 90;
152+	case WL_OUTPUT_TRANSFORM_180:
153+	case WL_OUTPUT_TRANSFORM_FLIPPED_180:
154+		return 180;
155+	case WL_OUTPUT_TRANSFORM_270:
156+	case WL_OUTPUT_TRANSFORM_FLIPPED_270:
157+		return 270;
158+	default:
159+		return 0;
160+	}
161+}
162+
163+#ifdef HAVE_RGA
164+static inline RgaSURF_FORMAT
165+rga_get_format(const struct pixel_format_info *format)
166+{
167+	switch (format->bpp) {
168+	case 32:
169+		return RK_FORMAT_BGRX_8888;
170+	case 16:
171+		return RK_FORMAT_RGB_565;
172+	default:
173+		return RK_FORMAT_UNKNOWN;
174+	}
175+}
176+#endif
177+
178+static int
179+drm_copy_fb(struct drm_fb *src, struct drm_fb *dst, int rotation,
180+	    int src_width, int src_height)
181+{
182+#ifndef HAVE_RGA
183+	/* TODO: Use pixman to do the copy */
184+	weston_log("rga not supported\n");
185+	return -1;
186+#else
187+	RgaSURF_FORMAT src_format, dst_format;
188+	rga_info_t src_info = {0};
189+	rga_info_t dst_info = {0};
190+	int src_fd, dst_fd;
191+	int ret;
192+
193+	static bool rga_supported = true;
194+	static bool rga_inited = false;
195+
196+	if (!rga_supported)
197+		return -1;
198+
199+	if (!rga_inited) {
200+		ret = c_RkRgaInit();
201+		if (ret < 0) {
202+			weston_log("rga not supported\n");
203+			rga_supported = false;
204+			return ret;
205+		}
206+		rga_inited = true;
207+	}
208+
209+	src_format = rga_get_format(src->format);
210+	dst_format = rga_get_format(dst->format);
211+
212+	if (src_format == RK_FORMAT_UNKNOWN ||
213+	    dst_format == RK_FORMAT_UNKNOWN) {
214+		weston_log("unsupported fb format\n");
215+		return -1;
216+	}
217+
218+	ret = drmPrimeHandleToFD(src->fd, src->handles[0],
219+				 DRM_CLOEXEC, &src_fd);
220+	if (ret < 0)
221+		return ret;
222+
223+	ret = drmPrimeHandleToFD(dst->fd, dst->handles[0],
224+				 DRM_CLOEXEC, &dst_fd);
225+	if (ret < 0)
226+		goto close_src;
227+
228+	src_info.fd = src_fd;
229+	src_info.mmuFlag = 1;
230+
231+	rga_set_rect(&src_info.rect, 0, 0, src_width, src_height,
232+		     src->strides[0] * 8 / src->format->bpp, src->height,
233+		     src_format);
234+
235+	if (rotation == 90)
236+		src_info.rotation = HAL_TRANSFORM_ROT_90;
237+	else if (rotation == 180)
238+		src_info.rotation = HAL_TRANSFORM_ROT_180;
239+	else if (rotation == 270)
240+		src_info.rotation = HAL_TRANSFORM_ROT_270;
241+
242+	dst_info.fd = dst_fd;
243+	dst_info.mmuFlag = 1;
244+
245+	rga_set_rect(&dst_info.rect, 0, 0, dst->width, dst->height,
246+		     dst->strides[0] * 8 / dst->format->bpp, dst->height,
247+		     dst_format);
248+
249+	ret = c_RkRgaBlit(&src_info, &dst_info, NULL);
250+	close(dst_fd);
251+close_src:
252+	close(src_fd);
253+	return ret;
254+#endif
255+}
256+
257 static void
258 drm_backend_update_outputs(struct drm_backend *b)
259 {
260@@ -95,6 +212,28 @@ drm_backend_update_outputs(struct drm_backend *b)
261 		return;
262
263 	primary = b->primary_head->base.output;
264+
265+	if (b->mirror_mode) {
266+		struct weston_output *base;
267+
268+		wl_list_for_each(base, &b->compositor->output_list, link) {
269+			struct drm_output *output = to_drm_output(base);
270+			bool is_mirror = base != primary;
271+
272+			if (output->is_mirror == is_mirror)
273+				continue;
274+
275+			/* Make mirrors unavailable for normal views */
276+			output->base.unavailable = is_mirror;
277+
278+			output->is_mirror = is_mirror;
279+			output->state_invalid = true;
280+
281+			weston_log("Output %s changed to %s output\n",
282+				   base->name, is_mirror ? "mirror" : "main");
283+		}
284+	}
285+
286 	if (!primary)
287 		return;
288
289@@ -405,6 +544,69 @@ drm_output_render_pixman(struct drm_output_state *state,
290 	return drm_fb_ref(output->dumb[output->current_image]);
291 }
292
293+static struct drm_fb *
294+drm_output_get_fb(struct drm_pending_state *pending_state,
295+		  struct weston_output *output_base)
296+{
297+	struct drm_output *output = to_drm_output(output_base);
298+	struct drm_plane_state *scanout_state;
299+	struct drm_output_state *state;
300+	struct drm_fb *fb = output->scanout_plane->state_cur->fb;
301+
302+	state = drm_pending_state_get_output(pending_state, output);
303+	if (!state)
304+		return fb;
305+
306+	scanout_state =
307+		drm_output_state_get_existing_plane(state,
308+						    output->scanout_plane);
309+	if (!scanout_state || !scanout_state->fb)
310+		return fb;
311+
312+	return scanout_state->fb;
313+}
314+
315+static void
316+drm_output_try_destroy_wrap_fb(struct drm_output *output)
317+{
318+	if (output->wrap[0]) {
319+		drm_fb_unref(output->wrap[0]);
320+		output->wrap[0] = NULL;
321+	}
322+
323+	if (output->wrap[1]) {
324+		drm_fb_unref(output->wrap[1]);
325+		output->wrap[1] = NULL;
326+	}
327+
328+	output->next_wrap = 0;
329+}
330+
331+static struct drm_fb *
332+drm_output_get_wrap_fb(struct drm_backend *b, struct drm_output *output,
333+		       int width, int height)
334+{
335+	struct drm_fb *fb = output->wrap[output->next_wrap];
336+
337+	if (fb) {
338+		if (fb->width == width && fb->height == height)
339+			goto out;
340+
341+		drm_fb_unref(fb);
342+	}
343+
344+	fb = drm_fb_create_dumb(b->drm, width, height, output->gbm_format);
345+	if (!fb) {
346+		weston_log("failed to create wrap fb\n");
347+		return NULL;
348+	}
349+
350+	output->wrap[output->next_wrap] = fb;
351+out:
352+	output->next_wrap ^= 1;
353+	return drm_fb_ref(fb);
354+}
355+
356 void
357 drm_output_render(struct drm_output_state *state, pixman_region32_t *damage)
358 {
359@@ -417,10 +619,13 @@ drm_output_render(struct drm_output_state *state, pixman_region32_t *damage)
360 		&scanout_plane->props[WDRM_PLANE_FB_DAMAGE_CLIPS];
361 	struct drm_backend *b = device->backend;
362 	struct drm_mode *mode;
363-	struct drm_fb *fb;
364+	struct drm_fb *fb = NULL;
365 	pixman_region32_t scanout_damage;
366 	pixman_box32_t *rects;
367 	int n_rects;
368+	int sw, sh, dx, dy, dw, dh;
369+	int rotation = 0;
370+	bool scaling;
371
372 	/* If we already have a client buffer promoted to scanout, then we don't
373 	 * want to render. */
374@@ -428,6 +633,35 @@ drm_output_render(struct drm_output_state *state, pixman_region32_t *damage)
375 	if (scanout_state->fb)
376 		return;
377
378+	if (!output->is_mirror) {
379+		struct drm_output *tmp;
380+
381+		/* Repaint all mirrors when updating main output */
382+		wl_list_for_each(tmp, &b->compositor->output_list, base.link)
383+			if (tmp->is_mirror)
384+				weston_output_schedule_repaint(&tmp->base);
385+	} else {
386+		if (!b->primary_head)
387+			goto out;
388+
389+		rotation = drm_output_get_rotation(output);
390+
391+		fb = drm_output_get_fb(state->pending_state,
392+				       b->primary_head->base.output);
393+		if (fb) {
394+			drm_fb_ref(fb);
395+
396+			pixman_region32_init(&scanout_damage);
397+			wl_signal_emit(&output->base.frame_signal,
398+				       &scanout_damage);
399+			pixman_region32_fini(&scanout_damage);
400+		} else {
401+			weston_compositor_damage_all(b->compositor);
402+		}
403+
404+		goto out;
405+	}
406+
407 	/*
408 	 * If we don't have any damage on the primary plane, and we already
409 	 * have a renderer buffer active, we can reuse it; else we pass
410@@ -447,24 +681,86 @@ drm_output_render(struct drm_output_state *state, pixman_region32_t *damage)
411 		fb = drm_output_render_gl(state, damage);
412 	}
413
414+out:
415 	if (!fb) {
416 		drm_plane_state_put_back(scanout_state);
417 		return;
418 	}
419
420+	sw = fb->width;
421+	sh = fb->height;
422+
423+	dx = output->plane_bounds.x1;
424+	dy = output->plane_bounds.y1;
425+	dw = output->plane_bounds.x2 - output->plane_bounds.x1;
426+	dh = output->plane_bounds.y2 - output->plane_bounds.y1;
427+
428+	if (!dw || !dh) {
429+		mode = to_drm_mode(output->base.current_mode);
430+		dw = mode->mode_info.hdisplay;
431+		dh = mode->mode_info.vdisplay;
432+	}
433+
434+	if (output->is_mirror && getenv("WESTON_DRM_KEEP_RATIO")) {
435+		float src_ratio = (float) sw / sh;
436+		float dst_ratio = (float) dw / dh;
437+		int offset;
438+
439+		if (rotation % 180)
440+			src_ratio = 1 / src_ratio;
441+
442+		if (src_ratio > dst_ratio) {
443+			offset = dh - dw / src_ratio;
444+			dy = offset / 2;
445+			dh -= offset;
446+		} else {
447+			offset = dw - dh * src_ratio;
448+			dx = offset / 2;
449+			dw -= offset;
450+		}
451+	}
452+
453+	scaling = sw != dw || sh != dh;
454+
455+	if (rotation || (scaling && !output->scanout_plane->can_scale)) {
456+		struct drm_fb *wrap_fb =
457+			drm_output_get_wrap_fb(b, output, dw, dh);
458+		if (!wrap_fb) {
459+			weston_log("failed to get wrap fb\n");
460+			goto err;
461+		}
462+
463+		if (drm_copy_fb(fb, wrap_fb, rotation, sw, sh) < 0) {
464+			weston_log("failed to copy fb\n");
465+			goto err;
466+		}
467+
468+		sw = dw;
469+		sh = dh;
470+
471+		drm_fb_unref(fb);
472+		fb = wrap_fb;
473+	} else {
474+		drm_output_try_destroy_wrap_fb(output);
475+	}
476+
477 	scanout_state->fb = fb;
478+	fb = NULL;
479+
480 	scanout_state->output = output;
481
482 	scanout_state->src_x = 0;
483 	scanout_state->src_y = 0;
484-	scanout_state->src_w = fb->width << 16;
485-	scanout_state->src_h = fb->height << 16;
486+	scanout_state->src_w = sw << 16;
487+	scanout_state->src_h = sh << 16;
488
489-	mode = to_drm_mode(output->base.current_mode);
490-	scanout_state->dest_x = 0;
491-	scanout_state->dest_y = 0;
492-	scanout_state->dest_w = mode->mode_info.hdisplay;
493-	scanout_state->dest_h = mode->mode_info.vdisplay;
494+	scanout_state->dest_x = dx;
495+	scanout_state->dest_y = dy;
496+	scanout_state->dest_w = dw;
497+	scanout_state->dest_h = dh;
498+
499+	if (output->is_mirror)
500+		return;
501
502 	pixman_region32_subtract(&c->primary_plane.damage,
503 				 &c->primary_plane.damage, damage);
504@@ -500,6 +796,12 @@ drm_output_render(struct drm_output_state *state, pixman_region32_t *damage)
505 				  &scanout_state->damage_blob_id);
506
507 	pixman_region32_fini(&scanout_damage);
508+	return;
509+err:
510+	if (fb)
511+		drm_fb_unref(fb);
512+
513+	drm_plane_state_put_back(scanout_state);
514 }
515
516 static int
517@@ -1347,8 +1649,8 @@ drm_output_fini_pixman(struct drm_output *output)
518 	/* Destroying the Pixman surface will destroy all our buffers,
519 	 * regardless of refcount. Ensure we destroy them here. */
520 	if (!b->shutting_down &&
521-	    output->scanout_plane->state_cur->fb &&
522-	    output->scanout_plane->state_cur->fb->type == BUFFER_PIXMAN_DUMB) {
523+	    output->scanout_plane->state_cur->fb && (output->is_mirror ||
524+	    output->scanout_plane->state_cur->fb->type == BUFFER_PIXMAN_DUMB)) {
525 		drm_plane_reset_state(output->scanout_plane);
526 	}
527
528@@ -2067,6 +2369,8 @@ drm_output_destroy(struct weston_output *base)
529
530 	assert(output->hdr_output_metadata_blob_id == 0);
531
532+	drm_output_try_destroy_wrap_fb(output);
533+
534 	free(output);
535 }
536
537@@ -3442,6 +3746,12 @@ drm_backend_create(struct weston_compositor *compositor,
538 	else
539 		b->resize_freeze_ms = DRM_RESIZE_FREEZE_MS;
540
541+	buf = getenv("WESTON_DRM_MIRROR");
542+	if (buf && buf[0] == '1') {
543+		b->mirror_mode = true;
544+		weston_log("Entering mirror mode.\n");
545+	}
546+
547 	device = zalloc(sizeof *device);
548 	if (device == NULL)
549 		return NULL;
550diff --git a/libweston/backend-drm/meson.build b/libweston/backend-drm/meson.build
551index bf7ce33..92ca921 100644
552--- a/libweston/backend-drm/meson.build
553+++ b/libweston/backend-drm/meson.build
554@@ -40,7 +40,8 @@ deps_drm = [
555 	dep_libdrm,
556 	dep_libinput_backend,
557 	dependency('libudev', version: '>= 136'),
558-	dep_backlight
559+	dep_backlight,
560+	dep_rga
561 ]
562
563 if get_option('renderer-gl')
564diff --git a/libweston/backend-drm/state-propose.c b/libweston/backend-drm/state-propose.c
565index 967b6bd..69d49bc 100644
566--- a/libweston/backend-drm/state-propose.c
567+++ b/libweston/backend-drm/state-propose.c
568@@ -55,6 +55,21 @@ static const char *const drm_output_propose_state_mode_as_string[] = {
569 	[DRM_OUTPUT_PROPOSE_STATE_PLANES_ONLY]	= "plane-only state"
570 };
571
572+static bool
573+drm_is_mirroring(struct drm_backend *b)
574+{
575+	struct drm_output *tmp;
576+
577+	if (!b->mirror_mode)
578+		return false;
579+
580+	wl_list_for_each(tmp, &b->compositor->output_list, base.link)
581+		if (tmp->is_mirror)
582+			return true;
583+
584+	return false;
585+}
586+
587 static const char *
588 drm_propose_state_mode_to_string(enum drm_output_propose_state_mode mode)
589 {
590@@ -459,7 +474,8 @@ drm_output_find_plane_for_view(struct drm_output_state *state,
591 			FAILURE_REASONS_FB_FORMAT_INCOMPATIBLE;
592 		return NULL;
593 	} else if (buffer->type == WESTON_BUFFER_SHM) {
594-		if (!output->cursor_plane || device->cursors_are_broken) {
595+		if (!output->cursor_plane || device->cursors_are_broken ||
596+		    drm_is_mirroring(b)) {
597 			pnode->try_view_on_plane_failure_reasons |=
598 				FAILURE_REASONS_FB_FORMAT_INCOMPATIBLE;
599 			return NULL;
600@@ -932,7 +948,10 @@ drm_assign_planes(struct weston_output *output_base)
601 	drm_debug(b, "\t[repaint] preparing state for output %s (%lu)\n",
602 		  output_base->name, (unsigned long) output_base->id);
603
604-	if (!device->sprites_are_broken && !output->virtual && b->gbm) {
605+	/* Force single plane in mirror mode */
606+	if (drm_is_mirroring(b)) {
607+		drm_debug(b, "\t[state] no overlay plane in mirror mode\n");
608+	} else if (!device->sprites_are_broken && !output->virtual && b->gbm) {
609 		drm_debug(b, "\t[repaint] trying planes-only build state\n");
610 		state = drm_output_propose_state(output_base, pending_state, mode);
611 		if (!state) {
612diff --git a/libweston/compositor.c b/libweston/compositor.c
613index 707d1a0..07743ff 100644
614--- a/libweston/compositor.c
615+++ b/libweston/compositor.c
616@@ -1426,7 +1426,7 @@ weston_view_assign_output(struct weston_view *ev)
617 	mask = 0;
618 	pixman_region32_init(&region);
619 	wl_list_for_each(output, &ec->output_list, link) {
620-		if (output->destroying)
621+		if (!weston_output_valid(output))
622 			continue;
623
624 		pixman_region32_intersect(&region, &ev->transform.boundingbox,
625@@ -5660,6 +5660,9 @@ bind_output(struct wl_client *client,
626 static void
627 weston_head_add_global(struct weston_head *head)
628 {
629+	if (head->global || !weston_output_valid(head->output))
630+		return;
631+
632 	head->global = wl_global_create(head->compositor->wl_display,
633 					&wl_output_interface, 3,
634 					head, bind_output);
635@@ -5695,6 +5698,15 @@ weston_head_remove_global(struct weston_head *head)
636 	wl_list_init(&head->xdg_output_resource_list);
637 }
638
639+static void
640+weston_head_update_global(struct weston_head *head)
641+{
642+	if (weston_output_valid(head->output))
643+		weston_head_add_global(head);
644+	else
645+		weston_head_remove_global(head);
646+}
647+
648 /** Get the backing object of wl_output
649  *
650  * \param resource A wl_output protocol object.
651@@ -6521,6 +6533,7 @@ WL_EXPORT void
652 weston_compositor_reflow_outputs(struct weston_compositor *compositor)
653 {
654 	struct weston_output *output;
655+	struct weston_head *head;
656 	int x, y, next_x, next_y;
657
658 	if (compositor->output_flow_dirty)
659@@ -6528,7 +6541,10 @@ weston_compositor_reflow_outputs(struct weston_compositor *compositor)
660
661 	next_x = next_y = 0;
662 	wl_list_for_each(output, &compositor->output_list, link) {
663-		if (output->destroying)
664+		wl_list_for_each(head, &output->head_list, output_link)
665+			weston_head_update_global(head);
666+
667+		if (!weston_output_valid(output))
668 			continue;
669
670 		x = next_x;
671@@ -6743,11 +6759,11 @@ weston_compositor_add_output(struct weston_compositor *compositor,
672 	wl_list_insert(compositor->output_list.prev, &output->link);
673 	output->enabled = true;
674
675+	wl_signal_emit(&compositor->output_created_signal, output);
676+
677 	wl_list_for_each(head, &output->head_list, output_link)
678 		weston_head_add_global(head);
679
680-	wl_signal_emit(&compositor->output_created_signal, output);
681-
682 	/*
683 	 * Use view_list, as paint nodes have not been created for this
684 	 * output yet. Any existing view might touch this new output.
685diff --git a/libweston/input.c b/libweston/input.c
686index 235cf02..8c9cabc 100644
687--- a/libweston/input.c
688+++ b/libweston/input.c
689@@ -1733,6 +1733,10 @@ weston_pointer_clamp(struct weston_pointer *pointer, wl_fixed_t *fx, wl_fixed_t
690 	wl_list_for_each(output, &ec->output_list, link) {
691 		if (pointer->seat->output && pointer->seat->output != output)
692 			continue;
693+
694+		if (output->unavailable)
695+			continue;
696+
697 		if (pixman_region32_contains_point(&output->region,
698 						   x, y, NULL))
699 			valid = 1;
700@@ -1802,6 +1806,9 @@ weston_pointer_handle_output_destroy(struct wl_listener *listener, void *data)
701 	y = wl_fixed_to_int(pointer->y);
702
703 	wl_list_for_each(output, &ec->output_list, link) {
704+		if (output->unavailable)
705+			continue;
706+
707 		if (pixman_region32_contains_point(&output->region,
708 						   x, y, NULL))
709 			return;
710diff --git a/meson.build b/meson.build
711index 82119ac..46e57e2 100644
712--- a/meson.build
713+++ b/meson.build
714@@ -141,6 +141,11 @@ if dep_xkbcommon.version().version_compare('>= 0.5.0')
715 	config_h.set('HAVE_XKBCOMMON_COMPOSE', '1')
716 endif
717
718+dep_rga = dependency('librga', required: false)
719+if dep_rga.found()
720+	config_h.set('HAVE_RGA', '1')
721+endif
722+
723 dep_wayland_server = dependency('wayland-server', version: '>= 1.20.0')
724 dep_wayland_client = dependency('wayland-client', version: '>= 1.20.0')
725 dep_pixman = dependency('pixman-1', version: '>= 0.25.2')
726--
7272.20.1
728
729