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
35 #include <wayland-server.h>
36 #include "wayland-drm.h"
37 #include "wayland-drm-server-protocol.h"
38
39 struct wl_drm {
40 struct wl_display *display;
41
42 void *user_data;
43 char *device_name;
44
45 struct wayland_drm_callbacks *callbacks;
46 };
47
48 static void
destroy_buffer(struct wl_resource * resource)49 destroy_buffer(struct wl_resource *resource)
50 {
51 struct wl_drm_buffer *buffer = resource->data;
52 struct wl_drm *drm = buffer->drm;
53
54 drm->callbacks->release_buffer(drm->user_data, buffer);
55 free(buffer);
56 }
57
58 static void
buffer_destroy(struct wl_client * client,struct wl_resource * resource)59 buffer_destroy(struct wl_client *client, struct wl_resource *resource)
60 {
61 wl_resource_destroy(resource);
62 }
63
64 const static struct wl_buffer_interface drm_buffer_interface = {
65 buffer_destroy
66 };
67
68 static void
create_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)69 create_buffer(struct wl_client *client, struct wl_resource *resource,
70 uint32_t id, uint32_t name, int32_t width, int32_t height,
71 uint32_t format,
72 int32_t offset0, int32_t stride0,
73 int32_t offset1, int32_t stride1,
74 int32_t offset2, int32_t stride2)
75 {
76 struct wl_drm *drm = resource->data;
77 struct wl_drm_buffer *buffer;
78
79 buffer = calloc(1, sizeof *buffer);
80 if (buffer == NULL) {
81 wl_resource_post_no_memory(resource);
82 return;
83 }
84
85 buffer->drm = drm;
86 buffer->buffer.width = width;
87 buffer->buffer.height = height;
88 buffer->format = format;
89 buffer->offset[0] = offset0;
90 buffer->stride[0] = stride0;
91 buffer->offset[1] = offset1;
92 buffer->stride[1] = stride1;
93 buffer->offset[2] = offset2;
94 buffer->stride[2] = stride2;
95
96 drm->callbacks->reference_buffer(drm->user_data, name, buffer);
97 if (buffer->driver_buffer == NULL) {
98 wl_resource_post_error(resource,
99 WL_DRM_ERROR_INVALID_NAME,
100 "invalid name");
101 return;
102 }
103
104 buffer->buffer.resource.object.id = id;
105 buffer->buffer.resource.object.interface = &wl_buffer_interface;
106 buffer->buffer.resource.object.implementation =
107 (void (**)(void)) &drm_buffer_interface;
108 buffer->buffer.resource.data = buffer;
109
110 buffer->buffer.resource.destroy = destroy_buffer;
111 buffer->buffer.resource.client = resource->client;
112
113 wl_client_add_resource(resource->client, &buffer->buffer.resource);
114 }
115
116 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)117 drm_create_buffer(struct wl_client *client, struct wl_resource *resource,
118 uint32_t id, uint32_t name, int32_t width, int32_t height,
119 uint32_t stride, uint32_t format)
120 {
121 switch (format) {
122 case WL_DRM_FORMAT_ARGB8888:
123 case WL_DRM_FORMAT_XRGB8888:
124 case WL_DRM_FORMAT_YUYV:
125 break;
126 default:
127 wl_resource_post_error(resource,
128 WL_DRM_ERROR_INVALID_FORMAT,
129 "invalid format");
130 return;
131 }
132
133 create_buffer(client, resource, id,
134 name, width, height, format, 0, stride, 0, 0, 0, 0);
135 }
136
137 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)138 drm_create_planar_buffer(struct wl_client *client,
139 struct wl_resource *resource,
140 uint32_t id, uint32_t name,
141 int32_t width, int32_t height, uint32_t format,
142 int32_t offset0, int32_t stride0,
143 int32_t offset1, int32_t stride1,
144 int32_t offset2, int32_t stride2)
145 {
146 switch (format) {
147 case WL_DRM_FORMAT_YUV410:
148 case WL_DRM_FORMAT_YUV411:
149 case WL_DRM_FORMAT_YUV420:
150 case WL_DRM_FORMAT_YUV422:
151 case WL_DRM_FORMAT_YUV444:
152 case WL_DRM_FORMAT_NV12:
153 case WL_DRM_FORMAT_NV16:
154 break;
155 default:
156 wl_resource_post_error(resource,
157 WL_DRM_ERROR_INVALID_FORMAT,
158 "invalid format");
159 return;
160 }
161
162 create_buffer(client, resource, id, name, width, height, format,
163 offset0, stride0, offset1, stride1, offset2, stride2);
164 }
165
166 static void
drm_authenticate(struct wl_client * client,struct wl_resource * resource,uint32_t id)167 drm_authenticate(struct wl_client *client,
168 struct wl_resource *resource, uint32_t id)
169 {
170 struct wl_drm *drm = resource->data;
171
172 if (drm->callbacks->authenticate(drm->user_data, id) < 0)
173 wl_resource_post_error(resource,
174 WL_DRM_ERROR_AUTHENTICATE_FAIL,
175 "authenicate failed");
176 else
177 wl_resource_post_event(resource, WL_DRM_AUTHENTICATED);
178 }
179
180 const static struct wl_drm_interface drm_interface = {
181 drm_authenticate,
182 drm_create_buffer,
183 drm_create_planar_buffer
184 };
185
186 static void
bind_drm(struct wl_client * client,void * data,uint32_t version,uint32_t id)187 bind_drm(struct wl_client *client, void *data, uint32_t version, uint32_t id)
188 {
189 struct wl_drm *drm = data;
190 struct wl_resource *resource;
191
192 resource = wl_client_add_object(client, &wl_drm_interface,
193 &drm_interface, id, data);
194 wl_resource_post_event(resource, WL_DRM_DEVICE, drm->device_name);
195 wl_resource_post_event(resource, WL_DRM_FORMAT,
196 WL_DRM_FORMAT_ARGB8888);
197 wl_resource_post_event(resource, WL_DRM_FORMAT,
198 WL_DRM_FORMAT_XRGB8888);
199 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV410);
200 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV411);
201 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV420);
202 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV422);
203 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV444);
204 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_NV12);
205 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_NV16);
206 wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUYV);
207 }
208
209 struct wl_drm *
wayland_drm_init(struct wl_display * display,char * device_name,struct wayland_drm_callbacks * callbacks,void * user_data)210 wayland_drm_init(struct wl_display *display, char *device_name,
211 struct wayland_drm_callbacks *callbacks, void *user_data)
212 {
213 struct wl_drm *drm;
214
215 drm = malloc(sizeof *drm);
216
217 drm->display = display;
218 drm->device_name = strdup(device_name);
219 drm->callbacks = callbacks;
220 drm->user_data = user_data;
221
222 wl_display_add_global(display, &wl_drm_interface, drm, bind_drm);
223
224 return drm;
225 }
226
227 void
wayland_drm_uninit(struct wl_drm * drm)228 wayland_drm_uninit(struct wl_drm *drm)
229 {
230 free(drm->device_name);
231
232 /* FIXME: need wl_display_del_{object,global} */
233
234 free(drm);
235 }
236
237 int
wayland_buffer_is_drm(struct wl_buffer * buffer)238 wayland_buffer_is_drm(struct wl_buffer *buffer)
239 {
240 return buffer->resource.object.implementation ==
241 (void (**)(void)) &drm_buffer_interface;
242 }
243
244 uint32_t
wayland_drm_buffer_get_format(struct wl_buffer * buffer_base)245 wayland_drm_buffer_get_format(struct wl_buffer *buffer_base)
246 {
247 struct wl_drm_buffer *buffer = (struct wl_drm_buffer *) buffer_base;
248
249 return buffer->format;
250 }
251
252 void *
wayland_drm_buffer_get_buffer(struct wl_buffer * buffer_base)253 wayland_drm_buffer_get_buffer(struct wl_buffer *buffer_base)
254 {
255 struct wl_drm_buffer *buffer = (struct wl_drm_buffer *) buffer_base;
256
257 return buffer->driver_buffer;
258 }
259