display-wayland: Add frame-listener and dispatch
[glsdk/omapdrmtest.git] / util / display-wayland.c
1 /*
2  * Copyright (C) 2011 Texas Instruments
3  * Author: Nikhil Devshatwar <nikhil.nd@ti.com>
4  *
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 as published by
7  * the Free Software Foundation.
8  *
9  * This program is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
12  * more details.
13  *
14  * You should have received a copy of the GNU General Public License along with
15  * this program.  If not, see <http://www.gnu.org/licenses/>.
16  */
18 #ifdef HAVE_CONFIG_H
19 #include "config.h"
20 #endif
22 #include "util.h"
24 #include <xf86drmMode.h>
25 #include <wayland-client.h>
26 #include <wayland-drm-client-protocol.h>
27 #include <wayland-scaler-client-protocol.h>
29 /* NOTE: healthy dose of recycling from libdrm modetest app.. */
32 #define to_display_wl(x) container_of(x, struct display_wl, base)
33 struct display_wl {
34         struct display base;
36         uint32_t bo_flags;
37         struct wl_display *display;
38         struct wl_compositor *compositor;
39         struct wl_surface *surface;
40         struct wl_shell *shell;
41         struct wl_drm *drm;
42         struct wl_callback *callback;
43         struct wl_viewport *viewport;
44         struct wl_scaler *scaler;
45 };
47 #define to_buffer_wl(x) container_of(x, struct buffer_wl, base)
48 struct buffer_wl {
49         struct buffer base;
51         struct wl_buffer *wl_buf;
52         uint32_t name;
53 };
55 static int global_fd = 0;
56 static uint32_t used_planes = 0;
57 static int ndisplays = 0;
59 static struct omap_bo *
60 alloc_bo(struct display *disp, uint32_t bpp, uint32_t width, uint32_t height,
61                 uint32_t *bo_handle, uint32_t *pitch)
62 {
63         struct display_wl *disp_wl = to_display_wl(disp);
64         struct omap_bo *bo;
65         uint32_t bo_flags = disp_wl->bo_flags;
67         bo_flags |= OMAP_BO_WC;
68         bo = omap_bo_new(disp->dev, width * height * bpp / 8, bo_flags);
70         if (bo) {
71                 *bo_handle = omap_bo_handle(bo);
72                 *pitch = width * bpp / 8;
73                 if (bo_flags & OMAP_BO_TILED)
74                         *pitch = ALIGN2(*pitch, PAGE_SHIFT);
75         }
77         return bo;
78 }
80 static struct buffer *
81 alloc_buffer(struct display *disp, uint32_t fourcc, uint32_t w, uint32_t h)
82 {
83         struct display_wl *disp_wl = to_display_wl(disp);
84         struct buffer_wl *buf_wl;
85         struct buffer *buf;
86         uint32_t bo_handles[4] = {0};
87         uint32_t wl_fmt = WL_DRM_FORMAT_NV12;
89         buf_wl = calloc(1, sizeof(*buf_wl));
90         if (!buf_wl) {
91                 ERROR("allocation failed");
92                 return NULL;
93         }
94         buf = &buf_wl->base;
96         buf->fourcc = fourcc;
97         buf->width = w;
98         buf->height = h;
99         buf->multiplanar = false;
101         buf->nbo = 1;
103         if (!fourcc)
104                 fourcc = FOURCC('A','R','2','4');
106         switch (fourcc) {
107         case FOURCC('A','R','2','4'):
108                 wl_fmt = WL_DRM_FORMAT_ARGB8888;
109                 buf->nbo = 1;
110                 buf->bo[0] = alloc_bo(disp, 32, buf->width, buf->height,
111                                 &bo_handles[0], &buf->pitches[0]);
112                 omap_bo_get_name(buf->bo[0], &buf_wl->name);
113                 buf->fd[0] = omap_bo_dmabuf(buf->bo[0]);
115                 /* ARGB: stride is four times width */
116                 buf_wl->wl_buf = wl_drm_create_buffer(disp_wl->drm,
117                         buf_wl->name, buf->width, buf->height,
118                         buf->width * 4, wl_fmt);
119                 break;
120         case FOURCC('U','Y','V','Y'):
121         case FOURCC('Y','U','Y','V'):
122                 wl_fmt = WL_DRM_FORMAT_YUYV;
123                 buf->nbo = 1;
124                 buf->bo[0] = alloc_bo(disp, 16, buf->width, buf->height,
125                                 &bo_handles[0], &buf->pitches[0]);
127                 omap_bo_get_name(buf->bo[0], &buf_wl->name);
128                 buf->fd[0] = omap_bo_dmabuf(buf->bo[0]);
129                 /* YUYV; stride is double width */
130                 buf_wl->wl_buf = wl_drm_create_buffer(disp_wl->drm,
131                         buf_wl->name, buf->width, buf->height,
132                         buf->width * 2, wl_fmt);
133                 break;
134         case FOURCC('N','V','1','2'):
135                 wl_fmt = WL_DRM_FORMAT_NV12;
136                 buf->nbo = 1;
137                 buf->bo[0] = alloc_bo(disp, 8, buf->width, buf->height * 3 / 2,
138                                 &bo_handles[0], &buf->pitches[0]);
140                 omap_bo_get_name(buf->bo[0], &buf_wl->name);
141                 buf->fd[0] = omap_bo_dmabuf(buf->bo[0]);
142                 /* NV12: Create a planar buffer */
143                 buf_wl->wl_buf = wl_drm_create_planar_buffer(disp_wl->drm,
144                         buf_wl->name, buf->width, buf->height, wl_fmt,
145                         0, buf->width,
146                         buf->width * buf->height, buf->width,
147                         0, 0);
148                 break;
149         default:
150                 ERROR("invalid format: 0x%08x", fourcc);
151                 goto fail;
152         }
154         return buf;
156 fail:
157         // XXX cleanup
158         return NULL;
161 static void
162 free_buffers(struct display *disp, uint32_t n)
164         uint32_t i;
165         for (i = 0; i < n; i++) {
166                 if (disp->buf[i]) {
167                         close(disp->buf[i]->fd[0]);
168                         omap_bo_del(disp->buf[i]->bo[0]);
169                         if (disp->multiplanar) {
170                                 close(disp->buf[i]->fd[1]);
171                                 omap_bo_del(disp->buf[i]->bo[1]);
172                         }
173                 }
174         }
175         free(disp->buf);
178 static struct buffer **
179 alloc_buffers(struct display *disp, uint32_t n,
180                 uint32_t fourcc, uint32_t w, uint32_t h)
182         struct buffer **bufs;
183         uint32_t i = 0;
185         bufs = calloc(n, sizeof(*bufs));
186         if (!bufs) {
187                 ERROR("allocation failed");
188                 goto fail;
189         }
191         for (i = 0; i < n; i++) {
192                 bufs[i] = alloc_buffer(disp, fourcc, w, h);
193                 if (!bufs[i]) {
194                         ERROR("allocation failed");
195                         goto fail;
196                 }
197         }
198         disp->buf = bufs;
199         return bufs;
201 fail:
202         // XXX cleanup
203         return NULL;
206 static struct buffer **
207 get_buffers(struct display *disp, uint32_t n)
209         return alloc_buffers(disp, n, 0, disp->width, disp->height);
212 static struct buffer **
213 get_vid_buffers(struct display *disp, uint32_t n,
214                 uint32_t fourcc, uint32_t w, uint32_t h)
216         return alloc_buffers(disp, n, fourcc, w, h);
219 static int
220 post_buffer(struct display *disp, struct buffer *buf)
222         ERROR("post_buffer not supported");
224         return -1;
226 static void redraw(void *data, struct wl_callback *callback, uint32_t time) {
227        struct display_wl *disp_wl = (struct display_wl *) data;
229        wl_callback_destroy(disp_wl->callback);
230        disp_wl->callback = NULL;
233 static const struct wl_callback_listener frame_listener = { redraw };
235 static int
236 post_vid_buffer(struct display *disp, struct buffer *buf,
237                 uint32_t x, uint32_t y, uint32_t w, uint32_t h)
239         struct display_wl *disp_wl = to_display_wl(disp);
240         struct buffer_wl *buf_wl = to_buffer_wl(buf);
241         int ret = 0;
243         wl_surface_attach(disp_wl->surface, buf_wl->wl_buf, 0, 0);
245         if (disp_wl->callback)
246                 wl_callback_destroy(disp_wl->callback);
247         disp_wl->callback = wl_surface_frame(disp_wl->surface);
249         wl_callback_add_listener(disp_wl->callback, &frame_listener, disp_wl);
251         wl_surface_commit(disp_wl->surface);
252         wl_display_flush(disp_wl->display);
254         while (disp_wl->callback) {
255                 wl_display_dispatch(disp_wl->display);
256         }
257         return ret;
260 static void
261 close_kms(struct display *disp)
263         omap_device_del(disp->dev);
264         disp->dev = NULL;
265         if (used_planes) {
266                 used_planes >>= 1;
267         }
268         if (--ndisplays == 0) {
269                 close(global_fd);
270         }
273 void
274 disp_wayland_usage(void)
276         MSG("WAYLAND Display Options:");
277         MSG("\t-w <width>x<height>\tset the dimensions of client window");
280 static void
281 registry_handle_global(void *data, struct wl_registry *registry, uint32_t id,
282         const char *interface, uint32_t version)
284         struct display_wl *disp_wl = (struct display_wl *) data;
286         if (strcmp(interface, "wl_compositor") == 0) {
287                 disp_wl->compositor = wl_registry_bind(registry, id,
288                         &wl_compositor_interface, 3);
289         } else if (strcmp(interface, "wl_shell") == 0) {
290                 disp_wl->shell = wl_registry_bind(registry, id,
291                         &wl_shell_interface, 1);
292         } else if (strcmp(interface, "wl_drm") == 0) {
293                 disp_wl->drm = wl_registry_bind(registry, id,
294                         &wl_drm_interface, 1);
295         } else if (strcmp(interface, "wl_scaler") == 0) {
296                 disp_wl->scaler = wl_registry_bind(registry, id,
297                         &wl_scaler_interface, 2);
298         }
301 static void
302 registry_handle_global_remove(void *data, struct wl_registry *registry,
303                 uint32_t name)
306 static const struct wl_registry_listener registry_listener = {
307         registry_handle_global,
308         registry_handle_global_remove
309 };
312 struct display *
313 disp_wayland_open(int argc, char **argv)
315         struct display_wl *disp_wl = NULL;
316         struct display *disp;
317         int i, enabled = 0, width, height;
319         struct wl_registry *registry;
320         struct wl_shell_surface *shell_surface;
321         struct wl_region *region;
323         /* note: set args to NULL after we've parsed them so other modules know
324          * that it is already parsed (since the arg parsing is decentralized)
325          */
326         for (i = 1; i < argc; i++) {
327                 if (!argv[i]) {
328                         continue;
329                 }
330                 if (!strcmp("-w", argv[i])) {
331                         argv[i++] = NULL;
332                         if (sscanf(argv[i], "%dx%d", &width, &height) != 2) {
333                                 ERROR("invalid arg: -w %s", argv[i]);
334                                 goto fail;
335                         }
336                         enabled = 1;
337                 } else {
338                         /* ignore */
339                         continue;
340                 }
341                 argv[i] = NULL;
342         }
343         // If not explicitely enabled from command line, fail.
344         if (!enabled)
345                 goto fail;
347         disp_wl = calloc(1, sizeof(*disp_wl));
348         if (!disp_wl) {
349                 ERROR("allocation failed");
350                 goto fail;
351         }
352         disp = &disp_wl->base;
354         if (!global_fd) {
355                 global_fd = drmOpen("omapdrm", NULL);
356                 if (global_fd < 0) {
357                         ERROR("could not open drm device: %s (%d)",
358                                 strerror(errno), errno);
359                         goto fail;
360                 }
361         }
363         disp->fd = global_fd;
364         ndisplays++;
366         disp->dev = omap_device_new(disp->fd);
367         if (!disp->dev) {
368                 ERROR("couldn't create device");
369                 goto fail;
370         }
372         disp->get_buffers = get_buffers;
373         disp->get_vid_buffers = get_vid_buffers;
374         disp->post_buffer = post_buffer;
375         disp->post_vid_buffer = post_vid_buffer;
376         disp->close = close_kms;
377         disp->disp_free_buf = free_buffers;
379         disp->multiplanar = false;
380         disp->width = width;
381         disp->height = height;
383         disp_wl->bo_flags = OMAP_BO_SCANOUT|OMAP_BO_WC;
385         disp_wl->display = wl_display_connect(NULL);
386         if (disp_wl->display == NULL) {
387                 ERROR("failed to connect to Wayland display: %m\n");
388                 goto fail;
389         } else {
390                 MSG("wayland display opened\n");
391         }
393         /* Find out what interfaces are implemented, and initialize */
394         registry = wl_display_get_registry(disp_wl->display);
395         wl_registry_add_listener(registry, &registry_listener, disp_wl);
396         wl_display_roundtrip(disp_wl->display);
397         MSG("wayland registries obtained\n");
399         disp_wl->surface = wl_compositor_create_surface(disp_wl->compositor);
400         shell_surface = wl_shell_get_shell_surface(disp_wl->shell,
401                                                 disp_wl->surface);
402         wl_shell_surface_set_toplevel(shell_surface);
404         region = wl_compositor_create_region(disp_wl->compositor);
405         wl_region_add(region, 0, 0, disp->width, disp->height);
407         disp_wl->viewport = wl_scaler_get_viewport(disp_wl->scaler,
408                                                 disp_wl->surface);
409         wl_viewport_set_destination(disp_wl->viewport, width, height);
411         return disp;
413 fail:
414         // XXX cleanup
415         return NULL;