ui/dbus-listener.c

   1 /*
   2  * QEMU DBus display console
   3  *
   4  * Copyright (c) 2021 Marc-André Lureau <marcandre.lureau@redhat.com>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24 #include "qemu/osdep.h"
  25 #include "qemu/error-report.h"
  26 #include "qapi/error.h"
  27 #include "sysemu/sysemu.h"
  28 #include "dbus.h"
  29 #ifdef CONFIG_OPENGL
  30 #include <pixman.h>
  31 #endif
  32 #ifdef G_OS_UNIX
  33 #include <gio/gunixfdlist.h>
  34 #endif
  35 #ifdef WIN32
  36 #include <d3d11.h>
  37 #include <dxgi1_2.h>
  38 #endif
  39
  40 #ifdef CONFIG_OPENGL
  41 #include "ui/shader.h"
  42 #include "ui/egl-helpers.h"
  43 #include "ui/egl-context.h"
  44 #endif
  45 #include "trace.h"
  46
  47 static void dbus_gfx_switch(DisplayChangeListener *dcl,
  48                             struct DisplaySurface *new_surface);
  49
  50 enum share_kind {
  51     SHARE_KIND_NONE,
  52     SHARE_KIND_MAPPED,
  53     SHARE_KIND_D3DTEX,
  54 };
  55
  56 struct _DBusDisplayListener {
  57     GObject parent;
  58
  59     char *bus_name;
  60     DBusDisplayConsole *console;
  61     GDBusConnection *conn;
  62
  63     QemuDBusDisplay1Listener *proxy;
  64
  65 #ifdef CONFIG_OPENGL
  66     /* Keep track of the damage region */
  67     pixman_region32_t gl_damage;
  68 #endif
  69
  70     DisplayChangeListener dcl;
  71     DisplaySurface *ds;
  72     enum share_kind ds_share;
  73
  74     bool ds_mapped;
  75     bool can_share_map;
  76
  77 #ifdef WIN32
  78     QemuDBusDisplay1ListenerWin32Map *map_proxy;
  79     QemuDBusDisplay1ListenerWin32D3d11 *d3d11_proxy;
  80     HANDLE peer_process;
  81     ID3D11Texture2D *d3d_texture;
  82 #ifdef CONFIG_OPENGL
  83     egl_fb fb;
  84 #endif
  85 #endif
  86 };
  87
  88 G_DEFINE_TYPE(DBusDisplayListener, dbus_display_listener, G_TYPE_OBJECT)
  89
  90 static void dbus_gfx_update(DisplayChangeListener *dcl,
  91                             int x, int y, int w, int h);
  92
  93 #ifdef CONFIG_OPENGL
  94 static void dbus_scanout_disable(DisplayChangeListener *dcl)
  95 {
  96     DBusDisplayListener *ddl = container_of(dcl, DBusDisplayListener, dcl);
  97
  98     qemu_dbus_display1_listener_call_disable(
  99         ddl->proxy, G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
 100 }
 101
 102 #ifdef WIN32
 103 static bool d3d_texture2d_share(ID3D11Texture2D *d3d_texture,
 104                                 HANDLE *handle, Error **errp)
 105 {
 106     IDXGIResource1 *dxgiResource = NULL;
 107     HRESULT hr;
 108
 109     hr = d3d_texture->lpVtbl->QueryInterface(d3d_texture,
 110                                              &IID_IDXGIResource1,
 111                                              (void **)&dxgiResource);
 112     if (FAILED(hr)) {
 113         goto fail;
 114     }
 115
 116     hr = dxgiResource->lpVtbl->CreateSharedHandle(
 117         dxgiResource,
 118         NULL,
 119         DXGI_SHARED_RESOURCE_READ | DXGI_SHARED_RESOURCE_WRITE,
 120         NULL,
 121         handle
 122         );
 123
 124     dxgiResource->lpVtbl->Release(dxgiResource);
 125
 126     if (SUCCEEDED(hr)) {
 127         return true;
 128     }
 129
 130 fail:
 131     error_setg_win32(errp, GetLastError(), "failed to create shared handle");
 132     return false;
 133 }
 134
 135 static bool d3d_texture2d_acquire0(ID3D11Texture2D *d3d_texture, Error **errp)
 136 {
 137     IDXGIKeyedMutex *dxgiMutex = NULL;
 138     HRESULT hr;
 139
 140     hr = d3d_texture->lpVtbl->QueryInterface(d3d_texture,
 141                                              &IID_IDXGIKeyedMutex,
 142                                              (void **)&dxgiMutex);
 143     if (FAILED(hr)) {
 144         goto fail;
 145     }
 146
 147     hr = dxgiMutex->lpVtbl->AcquireSync(dxgiMutex, 0, INFINITE);
 148
 149     dxgiMutex->lpVtbl->Release(dxgiMutex);
 150
 151     if (SUCCEEDED(hr)) {
 152         return true;
 153     }
 154
 155 fail:
 156     error_setg_win32(errp, GetLastError(), "failed to acquire texture mutex");
 157     return false;
 158 }
 159
 160 static bool d3d_texture2d_release0(ID3D11Texture2D *d3d_texture, Error **errp)
 161 {
 162     IDXGIKeyedMutex *dxgiMutex = NULL;
 163     HRESULT hr;
 164
 165     hr = d3d_texture->lpVtbl->QueryInterface(d3d_texture,
 166                                              &IID_IDXGIKeyedMutex,
 167                                              (void **)&dxgiMutex);
 168     if (FAILED(hr)) {
 169         goto fail;
 170     }
 171
 172     hr = dxgiMutex->lpVtbl->ReleaseSync(dxgiMutex, 0);
 173
 174     dxgiMutex->lpVtbl->Release(dxgiMutex);
 175
 176     if (SUCCEEDED(hr)) {
 177         return true;
 178     }
 179
 180 fail:
 181     error_setg_win32(errp, GetLastError(), "failed to release texture mutex");
 182     return false;
 183 }
 184 #endif /* WIN32 */
 185
 186 #if defined(CONFIG_GBM) || defined(WIN32)
 187 static void dbus_update_gl_cb(GObject *source_object,
 188                               GAsyncResult *res,
 189                               gpointer user_data)
 190 {
 191     g_autoptr(GError) err = NULL;
 192     DBusDisplayListener *ddl = user_data;
 193     bool success;
 194
 195 #ifdef CONFIG_GBM
 196     success = qemu_dbus_display1_listener_call_update_dmabuf_finish(
 197         ddl->proxy, res, &err);
 198 #endif
 199
 200 #ifdef WIN32
 201     success = qemu_dbus_display1_listener_win32_d3d11_call_update_texture2d_finish(
 202         ddl->d3d11_proxy, res, &err);
 203     d3d_texture2d_acquire0(ddl->d3d_texture, &error_warn);
 204 #endif
 205
 206     if (!success) {
 207         error_report("Failed to call update: %s", err->message);
 208     }
 209
 210     graphic_hw_gl_block(ddl->dcl.con, false);
 211     g_object_unref(ddl);
 212 }
 213 #endif
 214
 215 static void dbus_call_update_gl(DisplayChangeListener *dcl,
 216                                 int x, int y, int w, int h)
 217 {
 218 #if defined(CONFIG_GBM) || defined(WIN32)
 219     DBusDisplayListener *ddl = container_of(dcl, DBusDisplayListener, dcl);
 220 #endif
 221
 222     trace_dbus_update_gl(x, y, w, h);
 223
 224     glFlush();
 225 #ifdef CONFIG_GBM
 226     graphic_hw_gl_block(ddl->dcl.con, true);
 227     qemu_dbus_display1_listener_call_update_dmabuf(ddl->proxy,
 228         x, y, w, h,
 229         G_DBUS_CALL_FLAGS_NONE,
 230         DBUS_DEFAULT_TIMEOUT, NULL,
 231         dbus_update_gl_cb,
 232         g_object_ref(ddl));
 233 #endif
 234
 235 #ifdef WIN32
 236     switch (ddl->ds_share) {
 237     case SHARE_KIND_MAPPED:
 238         egl_fb_read_rect(ddl->ds, &ddl->fb, x, y, w, h);
 239         dbus_gfx_update(dcl, x, y, w, h);
 240         break;
 241     case SHARE_KIND_D3DTEX: {
 242         Error *err = NULL;
 243         assert(ddl->d3d_texture);
 244
 245         graphic_hw_gl_block(ddl->dcl.con, true);
 246         if (!d3d_texture2d_release0(ddl->d3d_texture, &err)) {
 247             error_report_err(err);
 248             return;
 249         }
 250         qemu_dbus_display1_listener_win32_d3d11_call_update_texture2d(
 251             ddl->d3d11_proxy,
 252             x, y, w, h,
 253             G_DBUS_CALL_FLAGS_NONE,
 254             DBUS_DEFAULT_TIMEOUT, NULL,
 255             dbus_update_gl_cb,
 256             g_object_ref(ddl));
 257         break;
 258     }
 259     default:
 260         g_warn_if_reached();
 261     }
 262 #endif
 263 }
 264
 265 #ifdef CONFIG_GBM
 266 static void dbus_scanout_dmabuf(DisplayChangeListener *dcl,
 267                                 QemuDmaBuf *dmabuf)
 268 {
 269     DBusDisplayListener *ddl = container_of(dcl, DBusDisplayListener, dcl);
 270     g_autoptr(GError) err = NULL;
 271     g_autoptr(GUnixFDList) fd_list = NULL;
 272
 273     fd_list = g_unix_fd_list_new();
 274     if (g_unix_fd_list_append(fd_list, dmabuf->fd, &err) != 0) {
 275         error_report("Failed to setup dmabuf fdlist: %s", err->message);
 276         return;
 277     }
 278
 279     /* FIXME: add missing x/y/w/h support */
 280     qemu_dbus_display1_listener_call_scanout_dmabuf(
 281         ddl->proxy,
 282         g_variant_new_handle(0),
 283         dmabuf->width,
 284         dmabuf->height,
 285         dmabuf->stride,
 286         dmabuf->fourcc,
 287         dmabuf->modifier,
 288         dmabuf->y0_top,
 289         G_DBUS_CALL_FLAGS_NONE,
 290         -1,
 291         fd_list,
 292         NULL, NULL, NULL);
 293 }
 294 #endif /* GBM */
 295 #endif /* OPENGL */
 296
 297 #ifdef WIN32
 298 static bool dbus_scanout_map(DBusDisplayListener *ddl)
 299 {
 300     g_autoptr(GError) err = NULL;
 301     BOOL success;
 302     HANDLE target_handle;
 303
 304     if (ddl->ds_share == SHARE_KIND_MAPPED) {
 305         return true;
 306     }
 307
 308     if (!ddl->can_share_map || !ddl->ds->handle) {
 309         return false;
 310     }
 311
 312     success = DuplicateHandle(
 313         GetCurrentProcess(),
 314         ddl->ds->handle,
 315         ddl->peer_process,
 316         &target_handle,
 317         FILE_MAP_READ | SECTION_QUERY,
 318         FALSE, 0);
 319     if (!success) {
 320         g_autofree char *msg = g_win32_error_message(GetLastError());
 321         g_debug("Failed to DuplicateHandle: %s", msg);
 322         ddl->can_share_map = false;
 323         return false;
 324     }
 325
 326     if (!qemu_dbus_display1_listener_win32_map_call_scanout_map_sync(
 327             ddl->map_proxy,
 328             GPOINTER_TO_UINT(target_handle),
 329             ddl->ds->handle_offset,
 330             surface_width(ddl->ds),
 331             surface_height(ddl->ds),
 332             surface_stride(ddl->ds),
 333             surface_format(ddl->ds),
 334             G_DBUS_CALL_FLAGS_NONE,
 335             DBUS_DEFAULT_TIMEOUT,
 336             NULL,
 337             &err)) {
 338         g_debug("Failed to call ScanoutMap: %s", err->message);
 339         ddl->can_share_map = false;
 340         return false;
 341     }
 342
 343     ddl->ds_share = SHARE_KIND_MAPPED;
 344
 345     return true;
 346 }
 347
 348 #ifdef CONFIG_OPENGL
 349 static bool
 350 dbus_scanout_share_d3d_texture(
 351     DBusDisplayListener *ddl,
 352     ID3D11Texture2D *tex,
 353     bool backing_y_0_top,
 354     uint32_t backing_width,
 355     uint32_t backing_height,
 356     uint32_t x, uint32_t y,
 357     uint32_t w, uint32_t h)
 358 {
 359     Error *err = NULL;
 360     BOOL success;
 361     HANDLE share_handle, target_handle;
 362
 363     if (!d3d_texture2d_release0(tex, &err)) {
 364         error_report_err(err);
 365         return false;
 366     }
 367
 368     if (!d3d_texture2d_share(tex, &share_handle, &err)) {
 369         error_report_err(err);
 370         return false;
 371     }
 372
 373     success = DuplicateHandle(
 374         GetCurrentProcess(),
 375         share_handle,
 376         ddl->peer_process,
 377         &target_handle,
 378         0,
 379         FALSE, DUPLICATE_SAME_ACCESS);
 380     if (!success) {
 381         g_autofree char *msg = g_win32_error_message(GetLastError());
 382         g_debug("Failed to DuplicateHandle: %s", msg);
 383         CloseHandle(share_handle);
 384         return false;
 385     }
 386
 387     qemu_dbus_display1_listener_win32_d3d11_call_scanout_texture2d(
 388         ddl->d3d11_proxy,
 389         GPOINTER_TO_INT(target_handle),
 390         backing_width,
 391         backing_height,
 392         backing_y_0_top,
 393         x, y, w, h,
 394         G_DBUS_CALL_FLAGS_NONE,
 395         -1,
 396         NULL, NULL, NULL);
 397
 398     CloseHandle(share_handle);
 399
 400     if (!d3d_texture2d_acquire0(tex, &err)) {
 401         error_report_err(err);
 402         return false;
 403     }
 404
 405     ddl->d3d_texture = tex;
 406     ddl->ds_share = SHARE_KIND_D3DTEX;
 407
 408     return true;
 409 }
 410 #endif /* CONFIG_OPENGL */
 411 #endif /* WIN32 */
 412
 413 #ifdef CONFIG_OPENGL
 414 static void dbus_scanout_texture(DisplayChangeListener *dcl,
 415                                  uint32_t tex_id,
 416                                  bool backing_y_0_top,
 417                                  uint32_t backing_width,
 418                                  uint32_t backing_height,
 419                                  uint32_t x, uint32_t y,
 420                                  uint32_t w, uint32_t h,
 421                                  void *d3d_tex2d)
 422 {
 423     trace_dbus_scanout_texture(tex_id, backing_y_0_top,
 424                                backing_width, backing_height, x, y, w, h);
 425 #ifdef CONFIG_GBM
 426     QemuDmaBuf dmabuf = {
 427         .width = w,
 428         .height = h,
 429         .y0_top = backing_y_0_top,
 430         .x = x,
 431         .y = y,
 432         .backing_width = backing_width,
 433         .backing_height = backing_height,
 434     };
 435
 436     assert(tex_id);
 437     dmabuf.fd = egl_get_fd_for_texture(
 438         tex_id, (EGLint *)&dmabuf.stride,
 439         (EGLint *)&dmabuf.fourcc,
 440         &dmabuf.modifier);
 441     if (dmabuf.fd < 0) {
 442         error_report("%s: failed to get fd for texture", __func__);
 443         return;
 444     }
 445
 446     dbus_scanout_dmabuf(dcl, &dmabuf);
 447     close(dmabuf.fd);
 448 #endif
 449
 450 #ifdef WIN32
 451     DBusDisplayListener *ddl = container_of(dcl, DBusDisplayListener, dcl);
 452
 453     /* there must be a matching gfx_switch before */
 454     assert(surface_width(ddl->ds) == w);
 455     assert(surface_height(ddl->ds) == h);
 456
 457     if (d3d_tex2d) {
 458         dbus_scanout_share_d3d_texture(ddl, d3d_tex2d, backing_y_0_top,
 459                                        backing_width, backing_height, x, y, w, h);
 460     } else {
 461         dbus_scanout_map(ddl);
 462         egl_fb_setup_for_tex(&ddl->fb, backing_width, backing_height, tex_id, false);
 463     }
 464 #endif
 465 }
 466
 467 #ifdef CONFIG_GBM
 468 static void dbus_cursor_dmabuf(DisplayChangeListener *dcl,
 469                                QemuDmaBuf *dmabuf, bool have_hot,
 470                                uint32_t hot_x, uint32_t hot_y)
 471 {
 472     DBusDisplayListener *ddl = container_of(dcl, DBusDisplayListener, dcl);
 473     DisplaySurface *ds;
 474     GVariant *v_data = NULL;
 475     egl_fb cursor_fb = EGL_FB_INIT;
 476
 477     if (!dmabuf) {
 478         qemu_dbus_display1_listener_call_mouse_set(
 479             ddl->proxy, 0, 0, false,
 480             G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
 481         return;
 482     }
 483
 484     egl_dmabuf_import_texture(dmabuf);
 485     if (!dmabuf->texture) {
 486         return;
 487     }
 488     egl_fb_setup_for_tex(&cursor_fb, dmabuf->width, dmabuf->height,
 489                          dmabuf->texture, false);
 490     ds = qemu_create_displaysurface(dmabuf->width, dmabuf->height);
 491     egl_fb_read(ds, &cursor_fb);
 492
 493     v_data = g_variant_new_from_data(
 494         G_VARIANT_TYPE("ay"),
 495         surface_data(ds),
 496         surface_width(ds) * surface_height(ds) * 4,
 497         TRUE,
 498         (GDestroyNotify)qemu_free_displaysurface,
 499         ds);
 500     qemu_dbus_display1_listener_call_cursor_define(
 501         ddl->proxy,
 502         surface_width(ds),
 503         surface_height(ds),
 504         hot_x,
 505         hot_y,
 506         v_data,
 507         G_DBUS_CALL_FLAGS_NONE,
 508         -1,
 509         NULL,
 510         NULL,
 511         NULL);
 512 }
 513
 514 static void dbus_release_dmabuf(DisplayChangeListener *dcl,
 515                                 QemuDmaBuf *dmabuf)
 516 {
 517     dbus_scanout_disable(dcl);
 518 }
 519 #endif /* GBM */
 520
 521 static void dbus_gl_cursor_position(DisplayChangeListener *dcl,
 522                                  uint32_t pos_x, uint32_t pos_y)
 523 {
 524     DBusDisplayListener *ddl = container_of(dcl, DBusDisplayListener, dcl);
 525
 526     qemu_dbus_display1_listener_call_mouse_set(
 527         ddl->proxy, pos_x, pos_y, true,
 528         G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
 529 }
 530
 531 static void dbus_scanout_update(DisplayChangeListener *dcl,
 532                                 uint32_t x, uint32_t y,
 533                                 uint32_t w, uint32_t h)
 534 {
 535     dbus_call_update_gl(dcl, x, y, w, h);
 536 }
 537
 538 static void dbus_gl_refresh(DisplayChangeListener *dcl)
 539 {
 540     DBusDisplayListener *ddl = container_of(dcl, DBusDisplayListener, dcl);
 541
 542     graphic_hw_update(dcl->con);
 543
 544     if (!ddl->ds || qemu_console_is_gl_blocked(ddl->dcl.con)) {
 545         return;
 546     }
 547
 548     int n_rects = pixman_region32_n_rects(&ddl->gl_damage);
 549
 550     for (int i = 0; i < n_rects; i++) {
 551         pixman_box32_t *box;
 552         box = pixman_region32_rectangles(&ddl->gl_damage, NULL) + i;
 553         /* TODO: Add a UpdateList call to send multiple updates at once */
 554         dbus_call_update_gl(dcl, box->x1, box->y1,
 555                             box->x2 - box->x1, box->y2 - box->y1);
 556     }
 557     pixman_region32_clear(&ddl->gl_damage);
 558 }
 559 #endif /* OPENGL */
 560
 561 static void dbus_refresh(DisplayChangeListener *dcl)
 562 {
 563     graphic_hw_update(dcl->con);
 564 }
 565
 566 #ifdef CONFIG_OPENGL
 567 static void dbus_gl_gfx_update(DisplayChangeListener *dcl,
 568                                int x, int y, int w, int h)
 569 {
 570     DBusDisplayListener *ddl = container_of(dcl, DBusDisplayListener, dcl);
 571
 572     pixman_region32_t rect_region;
 573     pixman_region32_init_rect(&rect_region, x, y, w, h);
 574     pixman_region32_union(&ddl->gl_damage, &ddl->gl_damage, &rect_region);
 575     pixman_region32_fini(&rect_region);
 576 }
 577 #endif
 578
 579 static void dbus_gfx_update(DisplayChangeListener *dcl,
 580                             int x, int y, int w, int h)
 581 {
 582     DBusDisplayListener *ddl = container_of(dcl, DBusDisplayListener, dcl);
 583     pixman_image_t *img;
 584     GVariant *v_data;
 585     size_t stride;
 586
 587     assert(ddl->ds);
 588
 589     trace_dbus_update(x, y, w, h);
 590
 591 #ifdef WIN32
 592     if (dbus_scanout_map(ddl)) {
 593         qemu_dbus_display1_listener_win32_map_call_update_map(
 594             ddl->map_proxy,
 595             x, y, w, h,
 596             G_DBUS_CALL_FLAGS_NONE,
 597             DBUS_DEFAULT_TIMEOUT, NULL, NULL, NULL);
 598         return;
 599     }
 600 #endif
 601
 602     if (x == 0 && y == 0 && w == surface_width(ddl->ds) && h == surface_height(ddl->ds)) {
 603         v_data = g_variant_new_from_data(
 604             G_VARIANT_TYPE("ay"),
 605             surface_data(ddl->ds),
 606             surface_stride(ddl->ds) * surface_height(ddl->ds),
 607             TRUE,
 608             (GDestroyNotify)pixman_image_unref,
 609             pixman_image_ref(ddl->ds->image));
 610         qemu_dbus_display1_listener_call_scanout(
 611             ddl->proxy,
 612             surface_width(ddl->ds),
 613             surface_height(ddl->ds),
 614             surface_stride(ddl->ds),
 615             surface_format(ddl->ds),
 616             v_data,
 617             G_DBUS_CALL_FLAGS_NONE,
 618             DBUS_DEFAULT_TIMEOUT, NULL, NULL, NULL);
 619         return;
 620     }
 621
 622     /* make a copy, since gvariant only handles linear data */
 623     stride = w * DIV_ROUND_UP(PIXMAN_FORMAT_BPP(surface_format(ddl->ds)), 8);
 624     img = pixman_image_create_bits(surface_format(ddl->ds),
 625                                    w, h, NULL, stride);
 626     pixman_image_composite(PIXMAN_OP_SRC, ddl->ds->image, NULL, img,
 627                            x, y, 0, 0, 0, 0, w, h);
 628
 629     v_data = g_variant_new_from_data(
 630         G_VARIANT_TYPE("ay"),
 631         pixman_image_get_data(img),
 632         pixman_image_get_stride(img) * h,
 633         TRUE,
 634         (GDestroyNotify)pixman_image_unref,
 635         img);
 636     qemu_dbus_display1_listener_call_update(ddl->proxy,
 637         x, y, w, h, pixman_image_get_stride(img), pixman_image_get_format(img),
 638         v_data,
 639         G_DBUS_CALL_FLAGS_NONE,
 640         DBUS_DEFAULT_TIMEOUT, NULL, NULL, NULL);
 641 }
 642
 643 #ifdef CONFIG_OPENGL
 644 static void dbus_gl_gfx_switch(DisplayChangeListener *dcl,
 645                                struct DisplaySurface *new_surface)
 646 {
 647     DBusDisplayListener *ddl = container_of(dcl, DBusDisplayListener, dcl);
 648
 649     trace_dbus_gl_gfx_switch(new_surface);
 650
 651     ddl->ds = new_surface;
 652     ddl->ds_share = SHARE_KIND_NONE;
 653     if (ddl->ds) {
 654         int width = surface_width(ddl->ds);
 655         int height = surface_height(ddl->ds);
 656
 657         /* TODO: lazy send dmabuf (there are unnecessary sent otherwise) */
 658         dbus_scanout_texture(&ddl->dcl, ddl->ds->texture, false,
 659                              width, height, 0, 0, width, height, NULL);
 660     }
 661 }
 662 #endif
 663
 664 static void dbus_gfx_switch(DisplayChangeListener *dcl,
 665                             struct DisplaySurface *new_surface)
 666 {
 667     DBusDisplayListener *ddl = container_of(dcl, DBusDisplayListener, dcl);
 668
 669     ddl->ds = new_surface;
 670     ddl->ds_share = SHARE_KIND_NONE;
 671 }
 672
 673 static void dbus_mouse_set(DisplayChangeListener *dcl,
 674                            int x, int y, int on)
 675 {
 676     DBusDisplayListener *ddl = container_of(dcl, DBusDisplayListener, dcl);
 677
 678     qemu_dbus_display1_listener_call_mouse_set(
 679         ddl->proxy, x, y, on, G_DBUS_CALL_FLAGS_NONE, -1, NULL, NULL, NULL);
 680 }
 681
 682 static void dbus_cursor_define(DisplayChangeListener *dcl,
 683                                QEMUCursor *c)
 684 {
 685     DBusDisplayListener *ddl = container_of(dcl, DBusDisplayListener, dcl);
 686     GVariant *v_data = NULL;
 687
 688     v_data = g_variant_new_from_data(
 689         G_VARIANT_TYPE("ay"),
 690         c->data,
 691         c->width * c->height * 4,
 692         TRUE,
 693         (GDestroyNotify)cursor_unref,
 694         cursor_ref(c));
 695
 696     qemu_dbus_display1_listener_call_cursor_define(
 697         ddl->proxy,
 698         c->width,
 699         c->height,
 700         c->hot_x,
 701         c->hot_y,
 702         v_data,
 703         G_DBUS_CALL_FLAGS_NONE,
 704         -1,
 705         NULL,
 706         NULL,
 707         NULL);
 708 }
 709
 710 #ifdef CONFIG_OPENGL
 711 const DisplayChangeListenerOps dbus_gl_dcl_ops = {
 712     .dpy_name                = "dbus-gl",
 713     .dpy_gfx_update          = dbus_gl_gfx_update,
 714     .dpy_gfx_switch          = dbus_gl_gfx_switch,
 715     .dpy_gfx_check_format    = console_gl_check_format,
 716     .dpy_refresh             = dbus_gl_refresh,
 717     .dpy_mouse_set           = dbus_mouse_set,
 718     .dpy_cursor_define       = dbus_cursor_define,
 719
 720     .dpy_gl_scanout_disable  = dbus_scanout_disable,
 721     .dpy_gl_scanout_texture  = dbus_scanout_texture,
 722 #ifdef CONFIG_GBM
 723     .dpy_gl_scanout_dmabuf   = dbus_scanout_dmabuf,
 724     .dpy_gl_cursor_dmabuf    = dbus_cursor_dmabuf,
 725     .dpy_gl_release_dmabuf   = dbus_release_dmabuf,
 726 #endif
 727     .dpy_gl_cursor_position  = dbus_gl_cursor_position,
 728     .dpy_gl_update           = dbus_scanout_update,
 729 };
 730 #endif
 731
 732 const DisplayChangeListenerOps dbus_dcl_ops = {
 733     .dpy_name                = "dbus",
 734     .dpy_gfx_update          = dbus_gfx_update,
 735     .dpy_gfx_switch          = dbus_gfx_switch,
 736     .dpy_refresh             = dbus_refresh,
 737     .dpy_mouse_set           = dbus_mouse_set,
 738     .dpy_cursor_define       = dbus_cursor_define,
 739 };
 740
 741 static void
 742 dbus_display_listener_dispose(GObject *object)
 743 {
 744     DBusDisplayListener *ddl = DBUS_DISPLAY_LISTENER(object);
 745
 746     unregister_displaychangelistener(&ddl->dcl);
 747     g_clear_object(&ddl->conn);
 748     g_clear_pointer(&ddl->bus_name, g_free);
 749     g_clear_object(&ddl->proxy);
 750 #ifdef WIN32
 751     g_clear_object(&ddl->map_proxy);
 752     g_clear_object(&ddl->d3d11_proxy);
 753     g_clear_pointer(&ddl->peer_process, CloseHandle);
 754 #ifdef CONFIG_OPENGL
 755     pixman_region32_fini(&ddl->gl_damage);
 756     egl_fb_destroy(&ddl->fb);
 757 #endif
 758 #endif
 759
 760     G_OBJECT_CLASS(dbus_display_listener_parent_class)->dispose(object);
 761 }
 762
 763 static void
 764 dbus_display_listener_constructed(GObject *object)
 765 {
 766     DBusDisplayListener *ddl = DBUS_DISPLAY_LISTENER(object);
 767
 768     ddl->dcl.ops = &dbus_dcl_ops;
 769 #ifdef CONFIG_OPENGL
 770     if (display_opengl) {
 771         ddl->dcl.ops = &dbus_gl_dcl_ops;
 772     }
 773 #endif
 774
 775     G_OBJECT_CLASS(dbus_display_listener_parent_class)->constructed(object);
 776 }
 777
 778 static void
 779 dbus_display_listener_class_init(DBusDisplayListenerClass *klass)
 780 {
 781     GObjectClass *object_class = G_OBJECT_CLASS(klass);
 782
 783     object_class->dispose = dbus_display_listener_dispose;
 784     object_class->constructed = dbus_display_listener_constructed;
 785 }
 786
 787 static void
 788 dbus_display_listener_init(DBusDisplayListener *ddl)
 789 {
 790 #ifdef CONFIG_OPENGL
 791     pixman_region32_init(&ddl->gl_damage);
 792 #endif
 793 }
 794
 795 const char *
 796 dbus_display_listener_get_bus_name(DBusDisplayListener *ddl)
 797 {
 798     return ddl->bus_name ?: "p2p";
 799 }
 800
 801 DBusDisplayConsole *
 802 dbus_display_listener_get_console(DBusDisplayListener *ddl)
 803 {
 804     return ddl->console;
 805 }
 806
 807 #ifdef WIN32
 808 static bool
 809 dbus_display_listener_implements(DBusDisplayListener *ddl, const char *iface)
 810 {
 811     QemuDBusDisplay1Listener *l = QEMU_DBUS_DISPLAY1_LISTENER(ddl->proxy);
 812     bool implements;
 813
 814     implements = g_strv_contains(qemu_dbus_display1_listener_get_interfaces(l), iface);
 815     if (!implements) {
 816         g_debug("Display listener does not implement: `%s`", iface);
 817     }
 818
 819     return implements;
 820 }
 821
 822 static bool
 823 dbus_display_listener_setup_peer_process(DBusDisplayListener *ddl)
 824 {
 825     g_autoptr(GError) err = NULL;
 826     GDBusConnection *conn;
 827     GIOStream *stream;
 828     GSocket *sock;
 829     g_autoptr(GCredentials) creds = NULL;
 830     DWORD *pid;
 831
 832     if (ddl->peer_process) {
 833         return true;
 834     }
 835
 836     conn = g_dbus_proxy_get_connection(G_DBUS_PROXY(ddl->proxy));
 837     stream = g_dbus_connection_get_stream(conn);
 838
 839     if (!G_IS_UNIX_CONNECTION(stream)) {
 840         return false;
 841     }
 842
 843     sock = g_socket_connection_get_socket(G_SOCKET_CONNECTION(stream));
 844     creds = g_socket_get_credentials(sock, &err);
 845
 846     if (!creds) {
 847         g_debug("Failed to get peer credentials: %s", err->message);
 848         return false;
 849     }
 850
 851     pid = g_credentials_get_native(creds, G_CREDENTIALS_TYPE_WIN32_PID);
 852
 853     if (pid == NULL) {
 854         g_debug("Failed to get peer PID");
 855         return false;
 856     }
 857
 858     ddl->peer_process = OpenProcess(
 859         PROCESS_DUP_HANDLE | PROCESS_QUERY_INFORMATION,
 860         false, *pid);
 861
 862     if (!ddl->peer_process) {
 863         g_autofree char *msg = g_win32_error_message(GetLastError());
 864         g_debug("Failed to OpenProcess: %s", msg);
 865         return false;
 866     }
 867
 868     return true;
 869 }
 870 #endif
 871
 872 static void
 873 dbus_display_listener_setup_d3d11(DBusDisplayListener *ddl)
 874 {
 875 #ifdef WIN32
 876     g_autoptr(GError) err = NULL;
 877
 878     if (!dbus_display_listener_implements(ddl,
 879             "org.qemu.Display1.Listener.Win32.D3d11")) {
 880         return;
 881     }
 882
 883     if (!dbus_display_listener_setup_peer_process(ddl)) {
 884         return;
 885     }
 886
 887     ddl->d3d11_proxy =
 888         qemu_dbus_display1_listener_win32_d3d11_proxy_new_sync(ddl->conn,
 889             G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START,
 890             NULL,
 891             "/org/qemu/Display1/Listener",
 892             NULL,
 893             &err);
 894     if (!ddl->d3d11_proxy) {
 895         g_debug("Failed to setup win32 d3d11 proxy: %s", err->message);
 896         return;
 897     }
 898 #endif
 899 }
 900
 901 static void
 902 dbus_display_listener_setup_shared_map(DBusDisplayListener *ddl)
 903 {
 904 #ifdef WIN32
 905     g_autoptr(GError) err = NULL;
 906
 907     if (!dbus_display_listener_implements(ddl, "org.qemu.Display1.Listener.Win32.Map")) {
 908         return;
 909     }
 910
 911     if (!dbus_display_listener_setup_peer_process(ddl)) {
 912         return;
 913     }
 914
 915     ddl->map_proxy =
 916         qemu_dbus_display1_listener_win32_map_proxy_new_sync(ddl->conn,
 917             G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START,
 918             NULL,
 919             "/org/qemu/Display1/Listener",
 920             NULL,
 921             &err);
 922     if (!ddl->map_proxy) {
 923         g_debug("Failed to setup win32 map proxy: %s", err->message);
 924         return;
 925     }
 926
 927     ddl->can_share_map = true;
 928 #endif
 929 }
 930
 931 DBusDisplayListener *
 932 dbus_display_listener_new(const char *bus_name,
 933                           GDBusConnection *conn,
 934                           DBusDisplayConsole *console)
 935 {
 936     DBusDisplayListener *ddl;
 937     QemuConsole *con;
 938     g_autoptr(GError) err = NULL;
 939
 940     ddl = g_object_new(DBUS_DISPLAY_TYPE_LISTENER, NULL);
 941     ddl->proxy =
 942         qemu_dbus_display1_listener_proxy_new_sync(conn,
 943             G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START,
 944             NULL,
 945             "/org/qemu/Display1/Listener",
 946             NULL,
 947             &err);
 948     if (!ddl->proxy) {
 949         error_report("Failed to setup proxy: %s", err->message);
 950         g_object_unref(conn);
 951         g_object_unref(ddl);
 952         return NULL;
 953     }
 954
 955     ddl->bus_name = g_strdup(bus_name);
 956     ddl->conn = conn;
 957     ddl->console = console;
 958
 959     dbus_display_listener_setup_shared_map(ddl);
 960     dbus_display_listener_setup_d3d11(ddl);
 961
 962     con = qemu_console_lookup_by_index(dbus_display_console_get_index(console));
 963     assert(con);
 964     ddl->dcl.con = con;
 965     register_displaychangelistener(&ddl->dcl);
 966
 967     return ddl;
 968 }