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 static void
destroy_buffer(struct wl_resource * resource)43 destroy_buffer(struct wl_resource *resource)
44 {
45 struct wl_drm_buffer *buffer = wl_resource_get_user_data(resource);
46 struct wl_drm *drm = buffer->drm;
47
48 drm->callbacks.release_buffer(drm->user_data, buffer);
49 free(buffer);
50 }
51
52 static void
buffer_destroy(struct wl_client * client,struct wl_resource * resource)53 buffer_destroy(struct wl_client *client, struct wl_resource *resource)
54 {
55 wl_resource_destroy(resource);
56 }
57
58 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)59 create_buffer(struct wl_client *client, struct wl_resource *resource,
60 uint32_t id, uint32_t name, int fd,
61 int32_t width, int32_t height,
62 uint32_t format,
63 int32_t offset0, int32_t stride0,
64 int32_t offset1, int32_t stride1,
65 int32_t offset2, int32_t stride2)
66 {
67 struct wl_drm *drm = wl_resource_get_user_data(resource);
68 struct wl_drm_buffer *buffer;
69
70 buffer = calloc(1, sizeof *buffer);
71 if (buffer == NULL) {
72 wl_resource_post_no_memory(resource);
73 return;
74 }
75
76 buffer->drm = drm;
77 buffer->width = width;
78 buffer->height = height;
79 buffer->format = format;
80 buffer->offset[0] = offset0;
81 buffer->stride[0] = stride0;
82 buffer->offset[1] = offset1;
83 buffer->stride[1] = stride1;
84 buffer->offset[2] = offset2;
85 buffer->stride[2] = stride2;
86
87 drm->callbacks.reference_buffer(drm->user_data, name, fd, buffer);
88 if (buffer->driver_buffer == NULL) {
89 wl_resource_post_error(resource,
90 WL_DRM_ERROR_INVALID_NAME,
91 "invalid name");
92 return;
93 }
94
95 buffer->resource =
96 wl_resource_create(client, &wl_buffer_interface, 1, id);
97 if (!buffer->resource) {
98 wl_resource_post_no_memory(resource);
99 free(buffer);
100 return;
101 }
102
103 wl_resource_set_implementation(buffer->resource,
104 (void (**)(void)) &drm->buffer_interface,
105 buffer, destroy_buffer);
106 }
107
108 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)109 drm_create_buffer(struct wl_client *client, struct wl_resource *resource,
110 uint32_t id, uint32_t name, int32_t width, int32_t height,
111 uint32_t stride, uint32_t format)
112 {
113 switch (format) {
114 case WL_DRM_FORMAT_ABGR2101010:
115 case WL_DRM_FORMAT_XBGR2101010:
116 case WL_DRM_FORMAT_ARGB2101010:
117 case WL_DRM_FORMAT_XRGB2101010:
118 case WL_DRM_FORMAT_ARGB8888:
119 case WL_DRM_FORMAT_XRGB8888:
120 case WL_DRM_FORMAT_YUYV:
121 case WL_DRM_FORMAT_RGB565:
122 break;
123 default:
124 wl_resource_post_error(resource,
125 WL_DRM_ERROR_INVALID_FORMAT,
126 "invalid format");
127 return;
128 }
129
130 create_buffer(client, resource, id,
131 name, -1, width, height, format, 0, stride, 0, 0, 0, 0);
132 }
133
134 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)135 drm_create_planar_buffer(struct wl_client *client,
136 struct wl_resource *resource,
137 uint32_t id, uint32_t name,
138 int32_t width, int32_t height, uint32_t format,
139 int32_t offset0, int32_t stride0,
140 int32_t offset1, int32_t stride1,
141 int32_t offset2, int32_t stride2)
142 {
143 switch (format) {
144 case WL_DRM_FORMAT_YUV410:
145 case WL_DRM_FORMAT_YUV411:
146 case WL_DRM_FORMAT_YUV420:
147 case WL_DRM_FORMAT_YUV422:
148 case WL_DRM_FORMAT_YUV444:
149 case WL_DRM_FORMAT_NV12:
150 case WL_DRM_FORMAT_NV16:
151 break;
152 default:
153 wl_resource_post_error(resource,
154 WL_DRM_ERROR_INVALID_FORMAT,
155 "invalid format");
156 return;
157 }
158
159 create_buffer(client, resource, id, name, -1, width, height, format,
160 offset0, stride0, offset1, stride1, offset2, stride2);
161 }
162
163 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)164 drm_create_prime_buffer(struct wl_client *client,
165 struct wl_resource *resource,
166 uint32_t id, int fd,
167 int32_t width, int32_t height, uint32_t format,
168 int32_t offset0, int32_t stride0,
169 int32_t offset1, int32_t stride1,
170 int32_t offset2, int32_t stride2)
171 {
172 create_buffer(client, resource, id, 0, fd, width, height, format,
173 offset0, stride0, offset1, stride1, offset2, stride2);
174 close(fd);
175 }
176
177 static void
drm_authenticate(struct wl_client * client,struct wl_resource * resource,uint32_t id)178 drm_authenticate(struct wl_client *client,
179 struct wl_resource *resource, uint32_t id)
180 {
181 struct wl_drm *drm = wl_resource_get_user_data(resource);
182
183 if (!drm->callbacks.authenticate ||
184 drm->callbacks.authenticate(drm->user_data, id) < 0)
185 wl_resource_post_error(resource,
186 WL_DRM_ERROR_AUTHENTICATE_FAIL,
187 "authenticate failed");
188 else
189 wl_resource_post_event(resource, WL_DRM_AUTHENTICATED);
190 }
191
192 static const struct wl_drm_interface drm_interface = {
193 drm_authenticate,
194 drm_create_buffer,
195 drm_create_planar_buffer,
196 drm_create_prime_buffer
197 };
198
199 static void
bind_drm(struct wl_client * client,void * data,uint32_t version,uint32_t id)200 bind_drm(struct wl_client *client, void *data, uint32_t version, uint32_t id)
201 {
202 struct wl_drm *drm = data;
203 struct wl_resource *resource;
204 uint32_t capabilities;
205
206 resource = wl_resource_create(client, &wl_drm_interface,
207 MIN(version, 2), id);
208 if (!resource) {
209 wl_client_post_no_memory(client);
210 return;
211 }
212
213 wl_resource_set_implementation(resource, &drm_interface, data, NULL);
214
215 wl_resource_post_event(resource, WL_DRM_DEVICE, drm->device_name);
216
217 if (drm->callbacks.is_format_supported(drm->user_data,
218 WL_DRM_FORMAT_ARGB2101010)) {
219 wl_resource_post_event(resource, WL_DRM_FORMAT,
220 WL_DRM_FORMAT_ARGB2101010);
221 }
222
223 if (drm->callbacks.is_format_supported(drm->user_data,
224 WL_DRM_FORMAT_XRGB2101010)) {
225 wl_resource_post_event(resource, WL_DRM_FORMAT,
226 WL_DRM_FORMAT_XRGB2101010);
227 }
228
229 if (drm->callbacks.is_format_supported(drm->user_data,
230 WL_DRM_FORMAT_ABGR2101010)) {
231 wl_resource_post_event(resource, WL_DRM_FORMAT,
232 WL_DRM_FORMAT_ABGR2101010);
233 }
234
235 if (drm->callbacks.is_format_supported(drm->user_data,
236 WL_DRM_FORMAT_XBGR2101010)) {
237 wl_resource_post_event(resource, WL_DRM_FORMAT,
238 WL_DRM_FORMAT_XBGR2101010);
239 }
240
241 wl_resource_post_event(resource, WL_DRM_FORMAT,
242 WL_DRM_FORMAT_ARGB8888);
243 wl_resource_post_event(resource, WL_DRM_FORMAT,
244 WL_DRM_FORMAT_XRGB8888);
245 wl_resource_post_event(resource, WL_DRM_FORMAT,
246 WL_DRM_FORMAT_RGB565);
247 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV410);
248 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV411);
249 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV420);
250 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV422);
251 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV444);
252 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_NV12);
253 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_NV16);
254 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUYV);
255
256 capabilities = 0;
257 if (drm->flags & WAYLAND_DRM_PRIME)
258 capabilities |= WL_DRM_CAPABILITY_PRIME;
259
260 if (version >= 2)
261 wl_resource_post_event(resource, WL_DRM_CAPABILITIES, capabilities);
262 }
263
264 struct wl_drm *
wayland_drm_init(struct wl_display * display,char * device_name,const struct wayland_drm_callbacks * callbacks,void * user_data,uint32_t flags)265 wayland_drm_init(struct wl_display *display, char *device_name,
266 const struct wayland_drm_callbacks *callbacks, void *user_data,
267 uint32_t flags)
268 {
269 struct wl_drm *drm;
270
271 drm = malloc(sizeof *drm);
272 if (!drm)
273 return NULL;
274
275 drm->display = display;
276 drm->device_name = strdup(device_name);
277 drm->callbacks = *callbacks;
278 drm->user_data = user_data;
279 drm->flags = flags;
280
281 drm->buffer_interface.destroy = buffer_destroy;
282
283 drm->wl_drm_global =
284 wl_global_create(display, &wl_drm_interface, 2,
285 drm, bind_drm);
286
287 return drm;
288 }
289
290 void
wayland_drm_uninit(struct wl_drm * drm)291 wayland_drm_uninit(struct wl_drm *drm)
292 {
293 free(drm->device_name);
294
295 wl_global_destroy(drm->wl_drm_global);
296
297 free(drm);
298 }
299