1 /*
2 * Copyright © 2011 Kristian Høgsberg
3 * Copyright © 2011 Benjamin Franzke
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
20 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
21 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23 * DEALINGS IN THE SOFTWARE.
24 *
25 * Authors:
26 * Kristian Høgsberg <krh@bitplanet.net>
27 * Benjamin Franzke <benjaminfranzke@googlemail.com>
28 */
29
30 #include <stdio.h>
31 #include <stdlib.h>
32 #include <string.h>
33 #include <stddef.h>
34 #include <unistd.h>
35
36 #include <wayland-server.h>
37 #include "wayland-drm.h"
38 #include "wayland-drm-server-protocol.h"
39
40 #define MIN(x,y) (((x)<(y))?(x):(y))
41
42 struct wl_drm {
43 struct wl_display *display;
44 struct wl_global *wl_drm_global;
45
46 void *user_data;
47 char *device_name;
48 uint32_t flags;
49
50 struct wayland_drm_callbacks *callbacks;
51
52 struct wl_buffer_interface buffer_interface;
53 };
54
55 static void
destroy_buffer(struct wl_resource * resource)56 destroy_buffer(struct wl_resource *resource)
57 {
58 struct wl_drm_buffer *buffer = resource->data;
59 struct wl_drm *drm = buffer->drm;
60
61 drm->callbacks->release_buffer(drm->user_data, buffer);
62 free(buffer);
63 }
64
65 static void
buffer_destroy(struct wl_client * client,struct wl_resource * resource)66 buffer_destroy(struct wl_client *client, struct wl_resource *resource)
67 {
68 wl_resource_destroy(resource);
69 }
70
71 static void
create_buffer(struct wl_client * client,struct wl_resource * resource,uint32_t id,uint32_t name,int fd,int32_t width,int32_t height,uint32_t format,int32_t offset0,int32_t stride0,int32_t offset1,int32_t stride1,int32_t offset2,int32_t stride2)72 create_buffer(struct wl_client *client, struct wl_resource *resource,
73 uint32_t id, uint32_t name, int fd,
74 int32_t width, int32_t height,
75 uint32_t format,
76 int32_t offset0, int32_t stride0,
77 int32_t offset1, int32_t stride1,
78 int32_t offset2, int32_t stride2)
79 {
80 struct wl_drm *drm = resource->data;
81 struct wl_drm_buffer *buffer;
82
83 buffer = calloc(1, sizeof *buffer);
84 if (buffer == NULL) {
85 wl_resource_post_no_memory(resource);
86 return;
87 }
88
89 buffer->drm = drm;
90 buffer->width = width;
91 buffer->height = height;
92 buffer->format = format;
93 buffer->offset[0] = offset0;
94 buffer->stride[0] = stride0;
95 buffer->offset[1] = offset1;
96 buffer->stride[1] = stride1;
97 buffer->offset[2] = offset2;
98 buffer->stride[2] = stride2;
99
100 drm->callbacks->reference_buffer(drm->user_data, name, fd, buffer);
101 if (buffer->driver_buffer == NULL) {
102 wl_resource_post_error(resource,
103 WL_DRM_ERROR_INVALID_NAME,
104 "invalid name");
105 return;
106 }
107
108 buffer->resource =
109 wl_resource_create(client, &wl_buffer_interface, 1, id);
110 if (!buffer->resource) {
111 wl_resource_post_no_memory(resource);
112 free(buffer);
113 return;
114 }
115
116 wl_resource_set_implementation(buffer->resource,
117 (void (**)(void)) &drm->buffer_interface,
118 buffer, destroy_buffer);
119 }
120
121 static void
drm_create_buffer(struct wl_client * client,struct wl_resource * resource,uint32_t id,uint32_t name,int32_t width,int32_t height,uint32_t stride,uint32_t format)122 drm_create_buffer(struct wl_client *client, struct wl_resource *resource,
123 uint32_t id, uint32_t name, int32_t width, int32_t height,
124 uint32_t stride, uint32_t format)
125 {
126 switch (format) {
127 case WL_DRM_FORMAT_ARGB8888:
128 case WL_DRM_FORMAT_XRGB8888:
129 case WL_DRM_FORMAT_YUYV:
130 case WL_DRM_FORMAT_RGB565:
131 break;
132 default:
133 wl_resource_post_error(resource,
134 WL_DRM_ERROR_INVALID_FORMAT,
135 "invalid format");
136 return;
137 }
138
139 create_buffer(client, resource, id,
140 name, -1, width, height, format, 0, stride, 0, 0, 0, 0);
141 }
142
143 static void
drm_create_planar_buffer(struct wl_client * client,struct wl_resource * resource,uint32_t id,uint32_t name,int32_t width,int32_t height,uint32_t format,int32_t offset0,int32_t stride0,int32_t offset1,int32_t stride1,int32_t offset2,int32_t stride2)144 drm_create_planar_buffer(struct wl_client *client,
145 struct wl_resource *resource,
146 uint32_t id, uint32_t name,
147 int32_t width, int32_t height, uint32_t format,
148 int32_t offset0, int32_t stride0,
149 int32_t offset1, int32_t stride1,
150 int32_t offset2, int32_t stride2)
151 {
152 switch (format) {
153 case WL_DRM_FORMAT_YUV410:
154 case WL_DRM_FORMAT_YUV411:
155 case WL_DRM_FORMAT_YUV420:
156 case WL_DRM_FORMAT_YUV422:
157 case WL_DRM_FORMAT_YUV444:
158 case WL_DRM_FORMAT_NV12:
159 case WL_DRM_FORMAT_NV16:
160 break;
161 default:
162 wl_resource_post_error(resource,
163 WL_DRM_ERROR_INVALID_FORMAT,
164 "invalid format");
165 return;
166 }
167
168 create_buffer(client, resource, id, name, -1, width, height, format,
169 offset0, stride0, offset1, stride1, offset2, stride2);
170 }
171
172 static void
drm_create_prime_buffer(struct wl_client * client,struct wl_resource * resource,uint32_t id,int fd,int32_t width,int32_t height,uint32_t format,int32_t offset0,int32_t stride0,int32_t offset1,int32_t stride1,int32_t offset2,int32_t stride2)173 drm_create_prime_buffer(struct wl_client *client,
174 struct wl_resource *resource,
175 uint32_t id, int fd,
176 int32_t width, int32_t height, uint32_t format,
177 int32_t offset0, int32_t stride0,
178 int32_t offset1, int32_t stride1,
179 int32_t offset2, int32_t stride2)
180 {
181 create_buffer(client, resource, id, 0, fd, width, height, format,
182 offset0, stride0, offset1, stride1, offset2, stride2);
183 close(fd);
184 }
185
186 static void
drm_authenticate(struct wl_client * client,struct wl_resource * resource,uint32_t id)187 drm_authenticate(struct wl_client *client,
188 struct wl_resource *resource, uint32_t id)
189 {
190 struct wl_drm *drm = resource->data;
191
192 if (drm->callbacks->authenticate(drm->user_data, id) < 0)
193 wl_resource_post_error(resource,
194 WL_DRM_ERROR_AUTHENTICATE_FAIL,
195 "authenicate failed");
196 else
197 wl_resource_post_event(resource, WL_DRM_AUTHENTICATED);
198 }
199
200 static const struct wl_drm_interface drm_interface = {
201 drm_authenticate,
202 drm_create_buffer,
203 drm_create_planar_buffer,
204 drm_create_prime_buffer
205 };
206
207 static void
bind_drm(struct wl_client * client,void * data,uint32_t version,uint32_t id)208 bind_drm(struct wl_client *client, void *data, uint32_t version, uint32_t id)
209 {
210 struct wl_drm *drm = data;
211 struct wl_resource *resource;
212 uint32_t capabilities;
213
214 resource = wl_resource_create(client, &wl_drm_interface,
215 MIN(version, 2), id);
216 if (!resource) {
217 wl_client_post_no_memory(client);
218 return;
219 }
220
221 wl_resource_set_implementation(resource, &drm_interface, data, NULL);
222
223 wl_resource_post_event(resource, WL_DRM_DEVICE, drm->device_name);
224 wl_resource_post_event(resource, WL_DRM_FORMAT,
225 WL_DRM_FORMAT_ARGB8888);
226 wl_resource_post_event(resource, WL_DRM_FORMAT,
227 WL_DRM_FORMAT_XRGB8888);
228 wl_resource_post_event(resource, WL_DRM_FORMAT,
229 WL_DRM_FORMAT_RGB565);
230 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV410);
231 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV411);
232 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV420);
233 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV422);
234 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV444);
235 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_NV12);
236 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_NV16);
237 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUYV);
238
239 capabilities = 0;
240 if (drm->flags & WAYLAND_DRM_PRIME)
241 capabilities |= WL_DRM_CAPABILITY_PRIME;
242
243 if (version >= 2)
244 wl_resource_post_event(resource, WL_DRM_CAPABILITIES, capabilities);
245 }
246
247 struct wl_drm_buffer *
wayland_drm_buffer_get(struct wl_drm * drm,struct wl_resource * resource)248 wayland_drm_buffer_get(struct wl_drm *drm, struct wl_resource *resource)
249 {
250 if (resource == NULL)
251 return NULL;
252
253 if (wl_resource_instance_of(resource, &wl_buffer_interface,
254 &drm->buffer_interface))
255 return wl_resource_get_user_data(resource);
256 else
257 return NULL;
258 }
259
260 struct wl_drm *
wayland_drm_init(struct wl_display * display,char * device_name,struct wayland_drm_callbacks * callbacks,void * user_data,uint32_t flags)261 wayland_drm_init(struct wl_display *display, char *device_name,
262 struct wayland_drm_callbacks *callbacks, void *user_data,
263 uint32_t flags)
264 {
265 struct wl_drm *drm;
266
267 drm = malloc(sizeof *drm);
268 if (!drm)
269 return NULL;
270
271 drm->display = display;
272 drm->device_name = strdup(device_name);
273 drm->callbacks = callbacks;
274 drm->user_data = user_data;
275 drm->flags = flags;
276
277 drm->buffer_interface.destroy = buffer_destroy;
278
279 drm->wl_drm_global =
280 wl_global_create(display, &wl_drm_interface, 2,
281 drm, bind_drm);
282
283 return drm;
284 }
285
286 void
wayland_drm_uninit(struct wl_drm * drm)287 wayland_drm_uninit(struct wl_drm *drm)
288 {
289 free(drm->device_name);
290
291 wl_global_destroy(drm->wl_drm_global);
292
293 free(drm);
294 }
295
296 uint32_t
wayland_drm_buffer_get_format(struct wl_drm_buffer * buffer)297 wayland_drm_buffer_get_format(struct wl_drm_buffer *buffer)
298 {
299 return buffer->format;
300 }
301
302 void *
wayland_drm_buffer_get_buffer(struct wl_drm_buffer * buffer)303 wayland_drm_buffer_get_buffer(struct wl_drm_buffer *buffer)
304 {
305 return buffer->driver_buffer;
306 }
307