EGL/x11/yagl_x11_display.c

   1 /*
   2  * YaGL
   3  *
   4  * Copyright (c) 2012 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Contact :
   7  * Stanislav Vorobiov <s.vorobiov@samsung.com>
   8  * Jinhyung Jo <jinhyung.jo@samsung.com>
   9  * YeongKyoon Lee <yeongkyoon.lee@samsung.com>
  10  *
  11  * Permission is hereby granted, free of charge, to any person obtaining a copy
  12  * of this software and associated documentation files (the "Software"), to deal
  13  * in the Software without restriction, including without limitation the rights
  14  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  15  * copies of the Software, and to permit persons to whom the Software is
  16  * furnished to do so, subject to the following conditions:
  17  *
  18  * The above copyright notice and this permission notice shall be included in
  19  * all copies or substantial portions of the Software.
  20  *
  21  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  22  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  23  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  24  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  25  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  26  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  27  * THE SOFTWARE.
  28  *
  29  * Contributors:
  30  * - S-Core Co., Ltd
  31  *
  32  */
  33
  34 #include "yagl_x11_display.h"
  35 #include "yagl_x11_drawable.h"
  36 #include "yagl_x11_image.h"
  37 #include "yagl_native_platform.h"
  38 #include "yagl_log.h"
  39 #include "yagl_malloc.h"
  40 #include "yagl_dri2.h"
  41 #include "yagl_dri3.h"
  42 #include "vigs.h"
  43 #include <X11/Xutil.h>
  44 #include <X11/extensions/XShm.h>
  45 #include <sys/fcntl.h>
  46 #include <stdio.h>
  47 #include <stdlib.h>
  48
  49 static int yagl_x11_display_dri2_authenticate(Display *x_dpy, uint32_t id)
  50 {
  51     if (!yagl_DRI2Authenticate(x_dpy,
  52                                RootWindow(x_dpy, DefaultScreen(x_dpy)),
  53                                id)) {
  54         fprintf(stderr, "Critical error! Failed to DRI2Authenticate on YaGL display, DRI2 not enabled ?\n");
  55         return 0;
  56     }
  57
  58     return 1;
  59 }
  60
  61 static int yagl_x11_display_dri2_init(Display *x_dpy, char **dri_device)
  62 {
  63     int ret;
  64     int event_base, error_base;
  65     int dri_major, dri_minor;
  66     char *dri_driver = NULL;
  67     int drm_fd = -1;
  68     drm_magic_t magic;
  69
  70     YAGL_LOG_FUNC_SET(eglGetDisplay);
  71
  72     *dri_device = NULL;
  73
  74     if (!yagl_DRI2QueryExtension(x_dpy, &event_base, &error_base)) {
  75         fprintf(stderr, "Critical error! Failed to DRI2QueryExtension on YaGL display, DRI2 not enabled ?\n");
  76         goto fail;
  77     }
  78
  79     YAGL_LOG_TRACE("DRI2QueryExtension returned %d %d",
  80                    event_base, error_base);
  81
  82     if (!yagl_DRI2QueryVersion(x_dpy, &dri_major, &dri_minor)) {
  83         fprintf(stderr, "Critical error! Failed to DRI2QueryVersion on YaGL display, DRI2 not enabled ?\n");
  84         goto fail;
  85     }
  86
  87     YAGL_LOG_TRACE("DRI2QueryVersion returned %d %d",
  88                    dri_major, dri_minor);
  89
  90     if (!yagl_DRI2Connect(x_dpy,
  91                           RootWindow(x_dpy, DefaultScreen(x_dpy)),
  92                           &dri_driver,
  93                           dri_device)) {
  94         fprintf(stderr, "Critical error! Failed to DRI2Connect on YaGL display, DRI2 not enabled ?\n");
  95         goto fail;
  96     }
  97
  98     YAGL_LOG_TRACE("DRI2Connect returned %s %s",
  99                    dri_driver, *dri_device);
 100
 101     drm_fd = open(*dri_device, O_RDWR);
 102
 103     if (drm_fd < 0) {
 104         fprintf(stderr, "Critical error! Failed to open(\"%s\"): %s\n", *dri_device, strerror(errno));
 105         goto fail;
 106     }
 107
 108     memset(&magic, 0, sizeof(magic));
 109
 110     ret = drmGetMagic(drm_fd, &magic);
 111
 112     if (ret != 0) {
 113         fprintf(stderr, "Critical error! drmGetMagic failed: %s\n", strerror(-ret));
 114         goto fail;
 115     }
 116
 117     if (!yagl_x11_display_dri2_authenticate(x_dpy, magic)) {
 118         goto fail;
 119     }
 120
 121     goto out;
 122
 123 fail:
 124     if (drm_fd >= 0) {
 125         close(drm_fd);
 126         drm_fd = -1;
 127     }
 128     if (*dri_device) {
 129         Xfree(*dri_device);
 130     }
 131 out:
 132     if (dri_driver) {
 133         Xfree(dri_driver);
 134     }
 135
 136     return drm_fd;
 137 }
 138
 139 static int yagl_x11_display_authenticate(struct yagl_native_display *dpy,
 140                                          uint32_t id)
 141 {
 142     struct yagl_x11_display *x11_dpy = (struct yagl_x11_display*)dpy;
 143     Display *x_dpy = YAGL_X11_DPY(dpy->os_dpy);
 144
 145     if (!x11_dpy->dri3_supported) {
 146         return yagl_x11_display_dri2_authenticate(x_dpy, id);
 147     }
 148
 149     return 1;
 150 }
 151
 152 static struct yagl_native_drawable
 153     *yagl_x11_display_wrap_window(struct yagl_native_display *dpy,
 154                                   yagl_os_window os_window)
 155 {
 156     struct yagl_x11_display *x11_dpy = (struct yagl_x11_display*)dpy;
 157
 158     return x11_dpy->create_drawable(dpy, os_window, 0, 0);
 159 }
 160
 161 static struct yagl_native_drawable
 162     *yagl_x11_display_wrap_pixmap(struct yagl_native_display *dpy,
 163                                   yagl_os_pixmap os_pixmap)
 164 {
 165     struct yagl_x11_display *x11_dpy = (struct yagl_x11_display*)dpy;
 166
 167     return x11_dpy->create_drawable(dpy, os_pixmap, 0, 1);
 168 }
 169
 170 static struct yagl_native_drawable
 171     *yagl_x11_display_create_pixmap(struct yagl_native_display *dpy,
 172                                     uint32_t width,
 173                                     uint32_t height,
 174                                     uint32_t depth)
 175 {
 176     struct yagl_x11_display *x11_dpy = (struct yagl_x11_display*)dpy;
 177     struct yagl_native_drawable *drawable;
 178     Display *x_dpy = YAGL_X11_DPY(dpy->os_dpy);
 179     Pixmap x_pixmap = XCreatePixmap(x_dpy,
 180                                     RootWindow(x_dpy, DefaultScreen(x_dpy)),
 181                                     width, height, depth);
 182
 183     if (!x_pixmap) {
 184         return NULL;
 185     }
 186
 187     drawable = x11_dpy->create_drawable(dpy, (yagl_os_pixmap)x_pixmap, 1, 1);
 188
 189     if (!drawable) {
 190         XFreePixmap(x_dpy, x_pixmap);
 191         return NULL;
 192     }
 193
 194     return drawable;
 195 }
 196
 197 static struct yagl_native_image
 198     *yagl_x11_display_create_image(struct yagl_native_display *dpy,
 199                                    uint32_t width,
 200                                    uint32_t height,
 201                                    uint32_t depth)
 202 {
 203     return yagl_x11_image_create(dpy, width, height, depth);
 204 }
 205
 206 static int yagl_x11_display_get_visual(struct yagl_native_display *dpy,
 207                                        int *visual_id,
 208                                        int *visual_type)
 209 {
 210     Display *x_dpy = YAGL_X11_DPY(dpy->os_dpy);
 211     int screen;
 212     XVisualInfo vi;
 213
 214     screen = XScreenNumberOfScreen(XDefaultScreenOfDisplay(x_dpy));
 215
 216     /*
 217      * 24-bit is the highest supported by soft framebuffer.
 218      */
 219     if (!XMatchVisualInfo(x_dpy, screen, 24, TrueColor, &vi)) {
 220         return 0;
 221     }
 222
 223     *visual_id = XVisualIDFromVisual(vi.visual);
 224     *visual_type = TrueColor;
 225
 226     return 1;
 227 }
 228
 229 static void yagl_x11_display_destroy(struct yagl_native_display *dpy)
 230 {
 231     struct yagl_x11_display *x11_dpy = (struct yagl_x11_display*)dpy;
 232     Display *x_dpy = YAGL_X11_DPY(dpy->os_dpy);
 233
 234     if (dpy->drm_dev) {
 235         int fd = dpy->drm_dev->fd;
 236         vigs_drm_device_destroy(dpy->drm_dev);
 237         close(fd);
 238     }
 239
 240     yagl_native_display_cleanup(dpy);
 241
 242     if (x11_dpy->own_dpy) {
 243         XCloseDisplay(x_dpy);
 244     }
 245
 246     yagl_free(x11_dpy);
 247 }
 248
 249 struct yagl_native_display *yagl_x11_display_create(struct yagl_native_platform *platform,
 250                                                     yagl_os_display os_dpy,
 251                                                     int own_dpy,
 252                                                     int enable_drm)
 253 {
 254     Display *x_dpy = YAGL_X11_DPY(os_dpy);
 255     struct yagl_x11_display *dpy;
 256     int xmajor;
 257     int xminor;
 258     Bool pixmaps;
 259     struct vigs_drm_device *drm_dev = NULL;
 260     char *dri_device = NULL;
 261     int ret;
 262
 263     YAGL_LOG_FUNC_SET(eglGetDisplay);
 264
 265     dpy = yagl_malloc0(sizeof(*dpy));
 266
 267     dpy->own_dpy = own_dpy;
 268
 269     dpy->xshm_images_supported = XShmQueryVersion(x_dpy,
 270                                                   &xmajor,
 271                                                   &xminor,
 272                                                   &pixmaps);
 273     dpy->xshm_pixmaps_supported = pixmaps;
 274
 275     YAGL_LOG_DEBUG("XShm images are%s supported, version %d, %d (pixmaps = %d)",
 276                    (dpy->xshm_images_supported ? "" : " NOT"),
 277                    xmajor,
 278                    xminor,
 279                    pixmaps);
 280
 281     dpy->create_drawable = &yagl_x11_drawable_create;
 282
 283     if (enable_drm) {
 284         int drm_fd = yagl_dri3_display_init(x_dpy, &dri_device);
 285
 286         if (drm_fd < 0) {
 287             YAGL_LOG_DEBUG("DRI3 init failed. Falling back to DRI2...");
 288
 289             drm_fd = yagl_x11_display_dri2_init(x_dpy, &dri_device);
 290
 291             if (drm_fd < 0) {
 292                 yagl_free(dpy);
 293                 return NULL;
 294             }
 295         } else {
 296             dpy->create_drawable = &yagl_dri3_drawable_create;
 297             dpy->dri3_supported = 1;
 298             platform->buffer_age_supported = 1;
 299         }
 300
 301         ret = vigs_drm_device_create(drm_fd, &drm_dev);
 302
 303         if (ret != 0) {
 304             fprintf(stderr,
 305                     "Critical error! vigs_drm_device_create failed: %s\n",
 306                     strerror(-ret));
 307             close(drm_fd);
 308             Xfree(dri_device);
 309             yagl_free(dpy);
 310             return NULL;
 311         }
 312     }
 313
 314     yagl_native_display_init(&dpy->base,
 315                              platform,
 316                              os_dpy,
 317                              drm_dev,
 318                              dri_device);
 319
 320     dpy->base.authenticate = &yagl_x11_display_authenticate;
 321     dpy->base.wrap_window = &yagl_x11_display_wrap_window;
 322     dpy->base.wrap_pixmap = &yagl_x11_display_wrap_pixmap;
 323     dpy->base.create_pixmap = &yagl_x11_display_create_pixmap;
 324     dpy->base.create_image = &yagl_x11_display_create_image;
 325     dpy->base.get_visual = &yagl_x11_display_get_visual;
 326     dpy->base.destroy = &yagl_x11_display_destroy;
 327
 328     if (dri_device) {
 329         Xfree(dri_device);
 330     }
 331
 332     return &dpy->base;
 333 }