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_ARGB2101010:
115 case WL_DRM_FORMAT_XRGB2101010:
116 case WL_DRM_FORMAT_ARGB8888:
117 case WL_DRM_FORMAT_XRGB8888:
118 case WL_DRM_FORMAT_YUYV:
119 case WL_DRM_FORMAT_RGB565:
120 break;
121 default:
122 wl_resource_post_error(resource,
123 WL_DRM_ERROR_INVALID_FORMAT,
124 "invalid format");
125 return;
126 }
127
128 create_buffer(client, resource, id,
129 name, -1, width, height, format, 0, stride, 0, 0, 0, 0);
130 }
131
132 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)133 drm_create_planar_buffer(struct wl_client *client,
134 struct wl_resource *resource,
135 uint32_t id, uint32_t name,
136 int32_t width, int32_t height, uint32_t format,
137 int32_t offset0, int32_t stride0,
138 int32_t offset1, int32_t stride1,
139 int32_t offset2, int32_t stride2)
140 {
141 switch (format) {
142 case WL_DRM_FORMAT_YUV410:
143 case WL_DRM_FORMAT_YUV411:
144 case WL_DRM_FORMAT_YUV420:
145 case WL_DRM_FORMAT_YUV422:
146 case WL_DRM_FORMAT_YUV444:
147 case WL_DRM_FORMAT_NV12:
148 case WL_DRM_FORMAT_NV16:
149 break;
150 default:
151 wl_resource_post_error(resource,
152 WL_DRM_ERROR_INVALID_FORMAT,
153 "invalid format");
154 return;
155 }
156
157 create_buffer(client, resource, id, name, -1, width, height, format,
158 offset0, stride0, offset1, stride1, offset2, stride2);
159 }
160
161 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)162 drm_create_prime_buffer(struct wl_client *client,
163 struct wl_resource *resource,
164 uint32_t id, int fd,
165 int32_t width, int32_t height, uint32_t format,
166 int32_t offset0, int32_t stride0,
167 int32_t offset1, int32_t stride1,
168 int32_t offset2, int32_t stride2)
169 {
170 create_buffer(client, resource, id, 0, fd, width, height, format,
171 offset0, stride0, offset1, stride1, offset2, stride2);
172 close(fd);
173 }
174
175 static void
drm_authenticate(struct wl_client * client,struct wl_resource * resource,uint32_t id)176 drm_authenticate(struct wl_client *client,
177 struct wl_resource *resource, uint32_t id)
178 {
179 struct wl_drm *drm = wl_resource_get_user_data(resource);
180
181 if (drm->callbacks.authenticate(drm->user_data, id) < 0)
182 wl_resource_post_error(resource,
183 WL_DRM_ERROR_AUTHENTICATE_FAIL,
184 "authenicate failed");
185 else
186 wl_resource_post_event(resource, WL_DRM_AUTHENTICATED);
187 }
188
189 static const struct wl_drm_interface drm_interface = {
190 drm_authenticate,
191 drm_create_buffer,
192 drm_create_planar_buffer,
193 drm_create_prime_buffer
194 };
195
196 static void
bind_drm(struct wl_client * client,void * data,uint32_t version,uint32_t id)197 bind_drm(struct wl_client *client, void *data, uint32_t version, uint32_t id)
198 {
199 struct wl_drm *drm = data;
200 struct wl_resource *resource;
201 uint32_t capabilities;
202
203 resource = wl_resource_create(client, &wl_drm_interface,
204 MIN(version, 2), id);
205 if (!resource) {
206 wl_client_post_no_memory(client);
207 return;
208 }
209
210 wl_resource_set_implementation(resource, &drm_interface, data, NULL);
211
212 wl_resource_post_event(resource, WL_DRM_DEVICE, drm->device_name);
213 wl_resource_post_event(resource, WL_DRM_FORMAT,
214 WL_DRM_FORMAT_ARGB2101010);
215 wl_resource_post_event(resource, WL_DRM_FORMAT,
216 WL_DRM_FORMAT_XRGB2101010);
217 wl_resource_post_event(resource, WL_DRM_FORMAT,
218 WL_DRM_FORMAT_ARGB8888);
219 wl_resource_post_event(resource, WL_DRM_FORMAT,
220 WL_DRM_FORMAT_XRGB8888);
221 wl_resource_post_event(resource, WL_DRM_FORMAT,
222 WL_DRM_FORMAT_RGB565);
223 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV410);
224 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV411);
225 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV420);
226 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV422);
227 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV444);
228 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_NV12);
229 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_NV16);
230 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUYV);
231
232 capabilities = 0;
233 if (drm->flags & WAYLAND_DRM_PRIME)
234 capabilities |= WL_DRM_CAPABILITY_PRIME;
235
236 if (version >= 2)
237 wl_resource_post_event(resource, WL_DRM_CAPABILITIES, capabilities);
238 }
239
240 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)241 wayland_drm_init(struct wl_display *display, char *device_name,
242 const struct wayland_drm_callbacks *callbacks, void *user_data,
243 uint32_t flags)
244 {
245 struct wl_drm *drm;
246
247 drm = malloc(sizeof *drm);
248 if (!drm)
249 return NULL;
250
251 drm->display = display;
252 drm->device_name = strdup(device_name);
253 drm->callbacks = *callbacks;
254 drm->user_data = user_data;
255 drm->flags = flags;
256
257 drm->buffer_interface.destroy = buffer_destroy;
258
259 drm->wl_drm_global =
260 wl_global_create(display, &wl_drm_interface, 2,
261 drm, bind_drm);
262
263 return drm;
264 }
265
266 void
wayland_drm_uninit(struct wl_drm * drm)267 wayland_drm_uninit(struct wl_drm *drm)
268 {
269 free(drm->device_name);
270
271 wl_global_destroy(drm->wl_drm_global);
272
273 free(drm);
274 }
275