aboutsummaryrefslogtreecommitdiff
path: root/xorg-server/hw/xwayland/xwayland-glamor.c
blob: 6b6e597566be0cbdc5b932ef415ea199bc4bba64 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
/*
 * Copyright © 2011-2014 Intel Corporation
 *
 * Permission to use, copy, modify, distribute, and sell this software
 * and its documentation for any purpose is hereby granted without
 * fee, provided that the above copyright notice appear in all copies
 * and that both that copyright notice and this permission notice
 * appear in supporting documentation, and that the name of the
 * copyright holders not be used in advertising or publicity
 * pertaining to distribution of the software without specific,
 * written prior permission.  The copyright holders make no
 * representations about the suitability of this software for any
 * purpose.  It is provided "as is" without express or implied
 * warranty.
 *
 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
 * SOFTWARE.
 */

#include "xwayland.h"

#include <fcntl.h>
#include <sys/stat.h>
#include <xf86drm.h>

#define MESA_EGL_NO_X11_HEADERS
#include <gbm.h>
#include <epoxy/egl.h>
#include <epoxy/gl.h>

#include <glamor.h>
#include <glamor_context.h>
#include <dri3.h>
#include "drm-client-protocol.h"

struct xwl_pixmap {
    struct wl_buffer *buffer;
    struct gbm_bo *bo;
    void *image;
    unsigned int texture;
};

static void
xwl_glamor_egl_make_current(struct glamor_context *glamor_ctx)
{
    eglMakeCurrent(glamor_ctx->display, EGL_NO_SURFACE,
                   EGL_NO_SURFACE, EGL_NO_CONTEXT);
    if (!eglMakeCurrent(glamor_ctx->display,
                        EGL_NO_SURFACE, EGL_NO_SURFACE,
                        glamor_ctx->ctx))
        FatalError("Failed to make EGL context current\n");
}

static uint32_t
drm_format_for_depth(int depth)
{
    switch (depth) {
    case 15:
        return WL_DRM_FORMAT_XRGB1555;
    case 16:
        return WL_DRM_FORMAT_RGB565;
    case 24:
        return WL_DRM_FORMAT_XRGB8888;
    default:
        ErrorF("unexpected depth: %d\n", depth);
    case 32:
        return WL_DRM_FORMAT_ARGB8888;
    }
}

static uint32_t
gbm_format_for_depth(int depth)
{
    switch (depth) {
    case 16:
        return GBM_FORMAT_RGB565;
    case 24:
        return GBM_FORMAT_XRGB8888;
    default:
        ErrorF("unexpected depth: %d\n", depth);
    case 32:
        return GBM_FORMAT_ARGB8888;
    }
}

void
glamor_egl_screen_init(ScreenPtr screen, struct glamor_context *glamor_ctx)
{
    struct xwl_screen *xwl_screen = xwl_screen_get(screen);

    glamor_ctx->ctx = xwl_screen->egl_context;
    glamor_ctx->display = xwl_screen->egl_display;

    glamor_ctx->make_current = xwl_glamor_egl_make_current;

    xwl_screen->glamor_ctx = glamor_ctx;
}

static PixmapPtr
xwl_glamor_create_pixmap_for_bo(ScreenPtr screen, struct gbm_bo *bo, int depth)
{
    PixmapPtr pixmap;
    struct xwl_pixmap *xwl_pixmap;
    struct xwl_screen *xwl_screen = xwl_screen_get(screen);

    xwl_pixmap = malloc(sizeof *xwl_pixmap);
    if (xwl_pixmap == NULL)
        return NULL;

    pixmap = glamor_create_pixmap(screen,
                                  gbm_bo_get_width(bo),
                                  gbm_bo_get_height(bo),
                                  depth,
                                  GLAMOR_CREATE_PIXMAP_NO_TEXTURE);
    if (pixmap == NULL) {
        free(xwl_pixmap);
        return NULL;
    }

    if (lastGLContext != xwl_screen->glamor_ctx) {
        lastGLContext = xwl_screen->glamor_ctx;
        xwl_glamor_egl_make_current(xwl_screen->glamor_ctx);
    }

    xwl_pixmap->bo = bo;
    xwl_pixmap->buffer = NULL;
    xwl_pixmap->image = eglCreateImageKHR(xwl_screen->egl_display,
                                          xwl_screen->egl_context,
                                          EGL_NATIVE_PIXMAP_KHR,
                                          xwl_pixmap->bo, NULL);

    glGenTextures(1, &xwl_pixmap->texture);
    glBindTexture(GL_TEXTURE_2D, xwl_pixmap->texture);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

    glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, xwl_pixmap->image);
    glBindTexture(GL_TEXTURE_2D, 0);

    xwl_pixmap_set_private(pixmap, xwl_pixmap);

    glamor_set_pixmap_texture(pixmap, xwl_pixmap->texture);
    glamor_set_pixmap_type(pixmap, GLAMOR_TEXTURE_DRM);

    return pixmap;
}

struct wl_buffer *
xwl_glamor_pixmap_get_wl_buffer(PixmapPtr pixmap)
{
    struct xwl_screen *xwl_screen = xwl_screen_get(pixmap->drawable.pScreen);
    struct xwl_pixmap *xwl_pixmap = xwl_pixmap_get(pixmap);
    int prime_fd;

    if (xwl_pixmap->buffer)
        return xwl_pixmap->buffer;

    prime_fd = gbm_bo_get_fd(xwl_pixmap->bo);
    if (prime_fd == -1)
        return NULL;

    xwl_pixmap->buffer =
        wl_drm_create_prime_buffer(xwl_screen->drm, prime_fd,
                                   pixmap->drawable.width,
                                   pixmap->drawable.height,
                                   drm_format_for_depth(pixmap->drawable.depth),
                                   0, gbm_bo_get_stride(xwl_pixmap->bo),
                                   0, 0,
                                   0, 0);

    close(prime_fd);

    return xwl_pixmap->buffer;
}

static PixmapPtr
xwl_glamor_create_pixmap(ScreenPtr screen,
                         int width, int height, int depth, unsigned int hint)
{
    struct xwl_screen *xwl_screen = xwl_screen_get(screen);
    struct gbm_bo *bo;

    if (width > 0 && height > 0 && depth >= 15 &&
        (hint == 0 ||
         hint == CREATE_PIXMAP_USAGE_BACKING_PIXMAP ||
         hint == CREATE_PIXMAP_USAGE_SHARED)) {
        bo = gbm_bo_create(xwl_screen->gbm, width, height,
                           gbm_format_for_depth(depth),
                           GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);

        if (bo)
            return xwl_glamor_create_pixmap_for_bo(screen, bo, depth);
    }

    return glamor_create_pixmap(screen, width, height, depth, hint);
}

static Bool
xwl_glamor_destroy_pixmap(PixmapPtr pixmap)
{
    struct xwl_screen *xwl_screen = xwl_screen_get(pixmap->drawable.pScreen);
    struct xwl_pixmap *xwl_pixmap = xwl_pixmap_get(pixmap);

    if (xwl_pixmap && pixmap->refcnt == 1) {
        if (xwl_pixmap->buffer)
            wl_buffer_destroy(xwl_pixmap->buffer);

        eglDestroyImageKHR(xwl_screen->egl_display, xwl_pixmap->image);
        gbm_bo_destroy(xwl_pixmap->bo);
        free(xwl_pixmap);
    }

    return glamor_destroy_pixmap(pixmap);
}

static Bool
xwl_glamor_create_screen_resources(ScreenPtr screen)
{
    struct xwl_screen *xwl_screen = xwl_screen_get(screen);
    int ret;

    screen->CreateScreenResources = xwl_screen->CreateScreenResources;
    ret = (*screen->CreateScreenResources) (screen);
    xwl_screen->CreateScreenResources = screen->CreateScreenResources;
    screen->CreateScreenResources = xwl_glamor_create_screen_resources;

    if (!ret)
        return ret;

    if (xwl_screen->rootless)
        screen->devPrivate =
            fbCreatePixmap(screen, 0, 0, screen->rootDepth, 0);
    else {
        screen->devPrivate =
            xwl_glamor_create_pixmap(screen, screen->width, screen->height,
                                     screen->rootDepth,
                                     CREATE_PIXMAP_USAGE_BACKING_PIXMAP);
        if (screen->devPrivate)
            glamor_set_screen_pixmap(screen->devPrivate, NULL);
    }

    return screen->devPrivate != NULL;
}

static char
is_fd_render_node(int fd)
{
    struct stat render;

    if (fstat(fd, &render))
        return 0;
    if (!S_ISCHR(render.st_mode))
        return 0;
    if (render.st_rdev & 0x80)
        return 1;

    return 0;
}

static void
xwl_drm_init_egl(struct xwl_screen *xwl_screen)
{
    EGLint major, minor;
    const char *version;

    if (xwl_screen->egl_display)
        return;

    xwl_screen->expecting_event--;

    xwl_screen->gbm = gbm_create_device(xwl_screen->drm_fd);
    if (xwl_screen->gbm == NULL) {
        ErrorF("couldn't get display device\n");
        return;
    }

    xwl_screen->egl_display = eglGetDisplay(xwl_screen->gbm);
    if (xwl_screen->egl_display == EGL_NO_DISPLAY) {
        ErrorF("eglGetDisplay() failed\n");
        return;
    }

    eglBindAPI(EGL_OPENGL_API);
    if (!eglInitialize(xwl_screen->egl_display, &major, &minor)) {
        ErrorF("eglInitialize() failed\n");
        return;
    }

    version = eglQueryString(xwl_screen->egl_display, EGL_VERSION);
    ErrorF("glamor: EGL version %s:\n", version);

    xwl_screen->egl_context = eglCreateContext(xwl_screen->egl_display,
                                               NULL, EGL_NO_CONTEXT, NULL);
    if (xwl_screen->egl_context == EGL_NO_CONTEXT) {
        ErrorF("Failed to create EGL context\n");
        return;
    }

    if (!eglMakeCurrent(xwl_screen->egl_display,
                        EGL_NO_SURFACE, EGL_NO_SURFACE,
                        xwl_screen->egl_context)) {
        ErrorF("Failed to make EGL context current\n");
        return;
    }

    if (!epoxy_has_gl_extension("GL_OES_EGL_image")) {
        ErrorF("GL_OES_EGL_image not available\n");
        return;
    }

    return;
}

static void
xwl_drm_handle_device(void *data, struct wl_drm *drm, const char *device)
{
   struct xwl_screen *xwl_screen = data;
   drm_magic_t magic;

   xwl_screen->device_name = strdup(device);
   if (!xwl_screen->device_name)
      return;

   xwl_screen->drm_fd = open(xwl_screen->device_name, O_RDWR | O_CLOEXEC);
   if (xwl_screen->drm_fd == -1) {
       ErrorF("wayland-egl: could not open %s (%s)\n",
	      xwl_screen->device_name, strerror(errno));
       return;
   }

   if (is_fd_render_node(xwl_screen->drm_fd)) {
       xwl_screen->fd_render_node = 1;
       xwl_drm_init_egl(xwl_screen);
   } else {
       drmGetMagic(xwl_screen->drm_fd, &magic);
       wl_drm_authenticate(xwl_screen->drm, magic);
   }
}

static void
xwl_drm_handle_format(void *data, struct wl_drm *drm, uint32_t format)
{
   struct xwl_screen *xwl_screen = data;

   switch (format) {
   case WL_DRM_FORMAT_ARGB8888:
      xwl_screen->formats |= XWL_FORMAT_ARGB8888;
      break;
   case WL_DRM_FORMAT_XRGB8888:
      xwl_screen->formats |= XWL_FORMAT_XRGB8888;
      break;
   case WL_DRM_FORMAT_RGB565:
      xwl_screen->formats |= XWL_FORMAT_RGB565;
      break;
   }
}

static void
xwl_drm_handle_authenticated(void *data, struct wl_drm *drm)
{
    struct xwl_screen *xwl_screen = data;

    if (!xwl_screen->egl_display)
        xwl_drm_init_egl(xwl_screen);
}

static void
xwl_drm_handle_capabilities(void *data, struct wl_drm *drm, uint32_t value)
{
   struct xwl_screen *xwl_screen = data;

   xwl_screen->capabilities = value;
}

static const struct wl_drm_listener xwl_drm_listener = {
    xwl_drm_handle_device,
    xwl_drm_handle_format,
    xwl_drm_handle_authenticated,
    xwl_drm_handle_capabilities
};

Bool
xwl_screen_init_glamor(struct xwl_screen *xwl_screen,
                       uint32_t id, uint32_t version)
{
    if (version < 2)
        return FALSE;

    xwl_screen->drm =
        wl_registry_bind(xwl_screen->registry, id, &wl_drm_interface, 2);
    wl_drm_add_listener(xwl_screen->drm, &xwl_drm_listener, xwl_screen);
    xwl_screen->expecting_event++;

    return TRUE;
}

void
glamor_egl_destroy_pixmap_image(PixmapPtr pixmap)
{
}

int
glamor_egl_dri3_fd_name_from_tex(ScreenPtr screen,
                                 PixmapPtr pixmap,
                                 unsigned int tex,
                                 Bool want_name, CARD16 *stride, CARD32 *size)
{
    return 0;
}

unsigned int
glamor_egl_create_argb8888_based_texture(ScreenPtr screen, int w, int h)
{
    return 0;
}

struct xwl_auth_state {
    int fd;
    ClientPtr client;
};

static void
sync_callback(void *data, struct wl_callback *callback, uint32_t serial)
{
    struct xwl_auth_state *state = data;

    dri3_send_open_reply(state->client, state->fd);
    AttendClient(state->client);
    free(state);
    wl_callback_destroy(callback);
}

static const struct wl_callback_listener sync_listener = {
   sync_callback
};

static int
xwl_dri3_open_client(ClientPtr client,
                     ScreenPtr screen,
                     RRProviderPtr provider,
                     int *pfd)
{
    struct xwl_screen *xwl_screen = xwl_screen_get(screen);
    struct xwl_auth_state *state;
    struct wl_callback *callback;
    drm_magic_t magic;
    int fd;

    fd = open(xwl_screen->device_name, O_RDWR | O_CLOEXEC);
    if (fd < 0)
        return BadAlloc;
    if (xwl_screen->fd_render_node) {
        *pfd = fd;
        return Success;
    }

    state = malloc(sizeof *state);
    if (state == NULL) {
        close(fd);
        return BadAlloc;
    }

    state->client = client;
    state->fd = fd;

    if (drmGetMagic(state->fd, &magic) < 0) {
        close(state->fd);
        free(state);
        return BadMatch;
    }

    wl_drm_authenticate(xwl_screen->drm, magic);
    callback = wl_display_sync(xwl_screen->display);
    wl_callback_add_listener(callback, &sync_listener, state);

    IgnoreClient(client);

    return Success;
}

static PixmapPtr
xwl_dri3_pixmap_from_fd(ScreenPtr screen, int fd,
                        CARD16 width, CARD16 height, CARD16 stride,
                        CARD8 depth, CARD8 bpp)
{
    struct xwl_screen *xwl_screen = xwl_screen_get(screen);
    struct gbm_import_fd_data data;
    struct gbm_bo *bo;
    PixmapPtr pixmap;

    if (width == 0 || height == 0 ||
        depth < 15 || bpp != BitsPerPixel(depth) || stride < width * bpp / 8)
        return NULL;

    data.fd = fd;
    data.width = width;
    data.height = height;
    data.stride = stride;
    data.format = gbm_format_for_depth(depth);
    bo = gbm_bo_import(xwl_screen->gbm, GBM_BO_IMPORT_FD, &data,
                       GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
    if (bo == NULL)
        return NULL;

    pixmap = xwl_glamor_create_pixmap_for_bo(screen, bo, depth);
    if (pixmap == NULL) {
        gbm_bo_destroy(bo);
        return NULL;
    }

    return pixmap;
}

static int
xwl_dri3_fd_from_pixmap(ScreenPtr screen, PixmapPtr pixmap,
                        CARD16 *stride, CARD32 *size)
{
    struct xwl_pixmap *xwl_pixmap;

    xwl_pixmap = xwl_pixmap_get(pixmap);

    *stride = gbm_bo_get_stride(xwl_pixmap->bo);
    *size = pixmap->drawable.width * *stride;

    return gbm_bo_get_fd(xwl_pixmap->bo);
}

static dri3_screen_info_rec xwl_dri3_info = {
    .version = 1,
    .open = NULL,
    .pixmap_from_fd = xwl_dri3_pixmap_from_fd,
    .fd_from_pixmap = xwl_dri3_fd_from_pixmap,
    .open_client = xwl_dri3_open_client,
};

Bool
xwl_glamor_init(struct xwl_screen *xwl_screen)
{
    ScreenPtr screen = xwl_screen->screen;

    if (xwl_screen->egl_context == EGL_NO_CONTEXT) {
        ErrorF("Disabling glamor and dri3, EGL setup failed\n");
        return FALSE;
    }

    if (!glamor_init(xwl_screen->screen, GLAMOR_USE_EGL_SCREEN)) {
        ErrorF("Failed to initialize glamor\n");
        return FALSE;
    }

    if (!dri3_screen_init(xwl_screen->screen, &xwl_dri3_info)) {
        ErrorF("Failed to initialize dri3\n");
        return FALSE;
    }

    xwl_screen->CreateScreenResources = screen->CreateScreenResources;
    screen->CreateScreenResources = xwl_glamor_create_screen_resources;
    screen->CreatePixmap = xwl_glamor_create_pixmap;
    screen->DestroyPixmap = xwl_glamor_destroy_pixmap;

    return TRUE;
}