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 <stddef.h>
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include <string.h>
34 #include <unistd.h>
35
36 #include "wayland-drm-server-protocol.h"
37 #include "wayland-drm.h"
38 #include <wayland-server.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, int32_t width, int32_t height,
61 uint32_t format, int32_t offset0, int32_t stride0,
62 int32_t offset1, int32_t stride1, int32_t offset2,
63 int32_t stride2)
64 {
65 struct wl_drm *drm = wl_resource_get_user_data(resource);
66 struct wl_drm_buffer *buffer;
67
68 buffer = calloc(1, sizeof *buffer);
69 if (buffer == NULL) {
70 wl_resource_post_no_memory(resource);
71 return;
72 }
73
74 buffer->drm = drm;
75 buffer->width = width;
76 buffer->height = height;
77 buffer->format = format;
78 buffer->offset[0] = offset0;
79 buffer->stride[0] = stride0;
80 buffer->offset[1] = offset1;
81 buffer->stride[1] = stride1;
82 buffer->offset[2] = offset2;
83 buffer->stride[2] = stride2;
84
85 drm->callbacks.reference_buffer(drm->user_data, name, fd, buffer);
86 if (buffer->driver_buffer == NULL) {
87 wl_resource_post_error(resource, WL_DRM_ERROR_INVALID_NAME,
88 "invalid name");
89 return;
90 }
91
92 buffer->resource = wl_resource_create(client, &wl_buffer_interface, 1, id);
93 if (!buffer->resource) {
94 wl_resource_post_no_memory(resource);
95 free(buffer);
96 return;
97 }
98
99 wl_resource_set_implementation(buffer->resource,
100 (void (**)(void)) & drm->buffer_interface,
101 buffer, destroy_buffer);
102 }
103
104 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)105 drm_create_buffer(struct wl_client *client, struct wl_resource *resource,
106 uint32_t id, uint32_t name, int32_t width, int32_t height,
107 uint32_t stride, uint32_t format)
108 {
109 switch (format) {
110 case WL_DRM_FORMAT_ABGR2101010:
111 case WL_DRM_FORMAT_XBGR2101010:
112 case WL_DRM_FORMAT_ARGB2101010:
113 case WL_DRM_FORMAT_XRGB2101010:
114 case WL_DRM_FORMAT_ARGB8888:
115 case WL_DRM_FORMAT_XRGB8888:
116 case WL_DRM_FORMAT_YUYV:
117 case WL_DRM_FORMAT_RGB565:
118 break;
119 default:
120 wl_resource_post_error(resource, WL_DRM_ERROR_INVALID_FORMAT,
121 "invalid format");
122 return;
123 }
124
125 create_buffer(client, resource, id, name, -1, width, height, format, 0,
126 stride, 0, 0, 0, 0);
127 }
128
129 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)130 drm_create_planar_buffer(struct wl_client *client, struct wl_resource *resource,
131 uint32_t id, uint32_t name, int32_t width,
132 int32_t height, uint32_t format, int32_t offset0,
133 int32_t stride0, int32_t offset1, int32_t stride1,
134 int32_t offset2, int32_t stride2)
135 {
136 switch (format) {
137 case WL_DRM_FORMAT_YUV410:
138 case WL_DRM_FORMAT_YUV411:
139 case WL_DRM_FORMAT_YUV420:
140 case WL_DRM_FORMAT_YUV422:
141 case WL_DRM_FORMAT_YUV444:
142 case WL_DRM_FORMAT_NV12:
143 case WL_DRM_FORMAT_NV16:
144 break;
145 default:
146 wl_resource_post_error(resource, WL_DRM_ERROR_INVALID_FORMAT,
147 "invalid format");
148 return;
149 }
150
151 create_buffer(client, resource, id, name, -1, width, height, format, offset0,
152 stride0, offset1, stride1, offset2, stride2);
153 }
154
155 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)156 drm_create_prime_buffer(struct wl_client *client, struct wl_resource *resource,
157 uint32_t id, int fd, int32_t width, int32_t height,
158 uint32_t format, int32_t offset0, int32_t stride0,
159 int32_t offset1, int32_t stride1, int32_t offset2,
160 int32_t stride2)
161 {
162 create_buffer(client, resource, id, 0, fd, width, height, format, offset0,
163 stride0, offset1, stride1, offset2, stride2);
164 close(fd);
165 }
166
167 static void
drm_authenticate(struct wl_client * client,struct wl_resource * resource,uint32_t id)168 drm_authenticate(struct wl_client *client, struct wl_resource *resource,
169 uint32_t id)
170 {
171 struct wl_drm *drm = wl_resource_get_user_data(resource);
172
173 if (!drm->callbacks.authenticate ||
174 drm->callbacks.authenticate(drm->user_data, id) < 0)
175 wl_resource_post_error(resource, WL_DRM_ERROR_AUTHENTICATE_FAIL,
176 "authenticate failed");
177 else
178 wl_resource_post_event(resource, WL_DRM_AUTHENTICATED);
179 }
180
181 static const struct wl_drm_interface drm_interface = {
182 drm_authenticate,
183 drm_create_buffer,
184 drm_create_planar_buffer,
185 drm_create_prime_buffer,
186 };
187
188 static void
bind_drm(struct wl_client * client,void * data,uint32_t version,uint32_t id)189 bind_drm(struct wl_client *client, void *data, uint32_t version, uint32_t id)
190 {
191 struct wl_drm *drm = data;
192 struct wl_resource *resource;
193 uint32_t capabilities;
194
195 resource =
196 wl_resource_create(client, &wl_drm_interface, MIN(version, 2), id);
197 if (!resource) {
198 wl_client_post_no_memory(client);
199 return;
200 }
201
202 wl_resource_set_implementation(resource, &drm_interface, data, NULL);
203
204 wl_resource_post_event(resource, WL_DRM_DEVICE, drm->device_name);
205
206 if (drm->callbacks.is_format_supported(drm->user_data,
207 WL_DRM_FORMAT_ARGB2101010)) {
208 wl_resource_post_event(resource, WL_DRM_FORMAT,
209 WL_DRM_FORMAT_ARGB2101010);
210 }
211
212 if (drm->callbacks.is_format_supported(drm->user_data,
213 WL_DRM_FORMAT_XRGB2101010)) {
214 wl_resource_post_event(resource, WL_DRM_FORMAT,
215 WL_DRM_FORMAT_XRGB2101010);
216 }
217
218 if (drm->callbacks.is_format_supported(drm->user_data,
219 WL_DRM_FORMAT_ABGR2101010)) {
220 wl_resource_post_event(resource, WL_DRM_FORMAT,
221 WL_DRM_FORMAT_ABGR2101010);
222 }
223
224 if (drm->callbacks.is_format_supported(drm->user_data,
225 WL_DRM_FORMAT_XBGR2101010)) {
226 wl_resource_post_event(resource, WL_DRM_FORMAT,
227 WL_DRM_FORMAT_XBGR2101010);
228 }
229
230 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_ARGB8888);
231 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_XRGB8888);
232 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_RGB565);
233 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV410);
234 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV411);
235 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV420);
236 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV422);
237 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV444);
238 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_NV12);
239 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_NV16);
240 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUYV);
241
242 capabilities = 0;
243 if (drm->flags & WAYLAND_DRM_PRIME)
244 capabilities |= WL_DRM_CAPABILITY_PRIME;
245
246 if (version >= 2)
247 wl_resource_post_event(resource, WL_DRM_CAPABILITIES, capabilities);
248 }
249
250 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)251 wayland_drm_init(struct wl_display *display, char *device_name,
252 const struct wayland_drm_callbacks *callbacks, void *user_data,
253 uint32_t flags)
254 {
255 struct wl_drm *drm;
256
257 drm = malloc(sizeof *drm);
258 if (!drm)
259 return NULL;
260
261 drm->display = display;
262 drm->device_name = strdup(device_name);
263 drm->callbacks = *callbacks;
264 drm->user_data = user_data;
265 drm->flags = flags;
266
267 drm->buffer_interface.destroy = buffer_destroy;
268
269 drm->wl_drm_global =
270 wl_global_create(display, &wl_drm_interface, 2, drm, bind_drm);
271
272 return drm;
273 }
274
275 void
wayland_drm_uninit(struct wl_drm * drm)276 wayland_drm_uninit(struct wl_drm *drm)
277 {
278 free(drm->device_name);
279
280 wl_global_destroy(drm->wl_drm_global);
281
282 free(drm);
283 }
284