src/egl/wayland/wayland-drm/wayland-drm.c

   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
  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
  53 buffer_destroy(struct wl_client *client, struct wl_resource *resource)
  54 {
  55         wl_resource_destroy(resource);
  56 }
  57
  58 static void
  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
 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_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,
 121                                        WL_DRM_ERROR_INVALID_FORMAT,
 122                                        "invalid format");
 123            return;
 124         }
 125
 126         create_buffer(client, resource, id,
 127                       name, -1, width, height, format, 0, stride, 0, 0, 0, 0);
 128 }
 129
 130 static void
 131 drm_create_planar_buffer(struct wl_client *client,
 132                          struct wl_resource *resource,
 133                          uint32_t id, uint32_t name,
 134                          int32_t width, int32_t height, uint32_t format,
 135                          int32_t offset0, int32_t stride0,
 136                          int32_t offset1, int32_t stride1,
 137                          int32_t offset2, int32_t stride2)
 138 {
 139         switch (format) {
 140         case WL_DRM_FORMAT_YUV410:
 141         case WL_DRM_FORMAT_YUV411:
 142         case WL_DRM_FORMAT_YUV420:
 143         case WL_DRM_FORMAT_YUV422:
 144         case WL_DRM_FORMAT_YUV444:
 145         case WL_DRM_FORMAT_NV12:
 146         case WL_DRM_FORMAT_NV16:
 147                 break;
 148         default:
 149                 wl_resource_post_error(resource,
 150                                        WL_DRM_ERROR_INVALID_FORMAT,
 151                                        "invalid format");
 152            return;
 153         }
 154
 155         create_buffer(client, resource, id, name, -1, width, height, format,
 156                       offset0, stride0, offset1, stride1, offset2, stride2);
 157 }
 158
 159 static void
 160 drm_create_prime_buffer(struct wl_client *client,
 161                         struct wl_resource *resource,
 162                         uint32_t id, int fd,
 163                         int32_t width, int32_t height, uint32_t format,
 164                         int32_t offset0, int32_t stride0,
 165                         int32_t offset1, int32_t stride1,
 166                         int32_t offset2, int32_t stride2)
 167 {
 168         create_buffer(client, resource, id, 0, fd, width, height, format,
 169                       offset0, stride0, offset1, stride1, offset2, stride2);
 170         close(fd);
 171 }
 172
 173 static void
 174 drm_authenticate(struct wl_client *client,
 175                  struct wl_resource *resource, uint32_t id)
 176 {
 177         struct wl_drm *drm = wl_resource_get_user_data(resource);
 178
 179         if (drm->callbacks.authenticate(drm->user_data, id) < 0)
 180                 wl_resource_post_error(resource,
 181                                        WL_DRM_ERROR_AUTHENTICATE_FAIL,
 182                                        "authenicate failed");
 183         else
 184                 wl_resource_post_event(resource, WL_DRM_AUTHENTICATED);
 185 }
 186
 187 static const struct wl_drm_interface drm_interface = {
 188         drm_authenticate,
 189         drm_create_buffer,
 190         drm_create_planar_buffer,
 191         drm_create_prime_buffer
 192 };
 193
 194 static void
 195 bind_drm(struct wl_client *client, void *data, uint32_t version, uint32_t id)
 196 {
 197         struct wl_drm *drm = data;
 198         struct wl_resource *resource;
 199         uint32_t capabilities;
 200
 201         resource = wl_resource_create(client, &wl_drm_interface,
 202                                       MIN(version, 2), id);
 203         if (!resource) {
 204                 wl_client_post_no_memory(client);
 205                 return;
 206         }
 207
 208         wl_resource_set_implementation(resource, &drm_interface, data, NULL);
 209
 210         wl_resource_post_event(resource, WL_DRM_DEVICE, drm->device_name);
 211         wl_resource_post_event(resource, WL_DRM_FORMAT,
 212                                WL_DRM_FORMAT_ARGB8888);
 213         wl_resource_post_event(resource, WL_DRM_FORMAT,
 214                                WL_DRM_FORMAT_XRGB8888);
 215         wl_resource_post_event(resource, WL_DRM_FORMAT,
 216                                WL_DRM_FORMAT_RGB565);
 217         wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV410);
 218         wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV411);
 219         wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV420);
 220         wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV422);
 221         wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV444);
 222         wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_NV12);
 223         wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_NV16);
 224         wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUYV);
 225
 226         capabilities = 0;
 227         if (drm->flags & WAYLAND_DRM_PRIME)
 228            capabilities |= WL_DRM_CAPABILITY_PRIME;
 229
 230         if (version >= 2)
 231            wl_resource_post_event(resource, WL_DRM_CAPABILITIES, capabilities);
 232 }
 233
 234 struct wl_drm *
 235 wayland_drm_init(struct wl_display *display, char *device_name,
 236                  const struct wayland_drm_callbacks *callbacks, void *user_data,
 237                  uint32_t flags)
 238 {
 239         struct wl_drm *drm;
 240
 241         drm = malloc(sizeof *drm);
 242         if (!drm)
 243                 return NULL;
 244
 245         drm->display = display;
 246         drm->device_name = strdup(device_name);
 247         drm->callbacks = *callbacks;
 248         drm->user_data = user_data;
 249         drm->flags = flags;
 250
 251         drm->buffer_interface.destroy = buffer_destroy;
 252
 253         drm->wl_drm_global =
 254                 wl_global_create(display, &wl_drm_interface, 2,
 255                                  drm, bind_drm);
 256
 257         return drm;
 258 }
 259
 260 void
 261 wayland_drm_uninit(struct wl_drm *drm)
 262 {
 263         free(drm->device_name);
 264
 265         wl_global_destroy(drm->wl_drm_global);
 266
 267         free(drm);
 268 }