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| /* |
| * va_wayland_drm.c - Wayland/DRM helpers |
| * |
| * Copyright (c) 2012 Intel Corporation. All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sub license, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial portions |
| * of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. |
| * IN NO EVENT SHALL INTEL AND/OR ITS SUPPLIERS BE LIABLE FOR |
| * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| #include "sysdeps.h" |
| #include <unistd.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <dlfcn.h> |
| #include <sys/stat.h> |
| #include <xf86drm.h> |
| #include "va_drmcommon.h" |
| #include "drm/va_drm_utils.h" |
| #include "va_wayland_drm.h" |
| #include "va_wayland_private.h" |
| #include "wayland-drm-client-protocol.h" |
| |
| /* XXX: Wayland/DRM support currently lives in Mesa libEGL.so.* library */ |
| #define LIBWAYLAND_DRM_NAME "libEGL.so.1" |
| |
| typedef struct va_wayland_drm_context { |
| struct va_wayland_context base; |
| void *handle; |
| struct wl_drm *drm; |
| struct wl_registry *registry; |
| void *drm_interface; |
| unsigned int is_authenticated : 1; |
| } VADisplayContextWaylandDRM; |
| |
| static void |
| drm_handle_device(void *data, struct wl_drm *drm, const char *device) |
| { |
| VADisplayContextP const pDisplayContext = data; |
| VADriverContextP const ctx = pDisplayContext->pDriverContext; |
| VADisplayContextWaylandDRM * const wl_drm_ctx = pDisplayContext->opaque; |
| struct drm_state * const drm_state = ctx->drm_state; |
| drm_magic_t magic; |
| struct stat st; |
| |
| if (stat(device, &st) < 0) { |
| va_wayland_error("failed to identify %s: %s (errno %d)", |
| device, strerror(errno), errno); |
| return; |
| } |
| |
| if (!S_ISCHR(st.st_mode)) { |
| va_wayland_error("%s is not a device", device); |
| return; |
| } |
| |
| drm_state->fd = open(device, O_RDWR); |
| if (drm_state->fd < 0) { |
| va_wayland_error("failed to open %s: %s (errno %d)", |
| device, strerror(errno), errno); |
| return; |
| } |
| |
| drmGetMagic(drm_state->fd, &magic); |
| wl_drm_authenticate(wl_drm_ctx->drm, magic); |
| } |
| |
| static void |
| drm_handle_format(void *data, struct wl_drm *drm, uint32_t format) |
| { |
| } |
| |
| static void |
| drm_handle_authenticated(void *data, struct wl_drm *drm) |
| { |
| VADisplayContextP const pDisplayContext = data; |
| VADriverContextP const ctx = pDisplayContext->pDriverContext; |
| VADisplayContextWaylandDRM * const wl_drm_ctx = pDisplayContext->opaque; |
| struct drm_state * const drm_state = ctx->drm_state; |
| |
| wl_drm_ctx->is_authenticated = 1; |
| drm_state->auth_type = VA_DRM_AUTH_CUSTOM; |
| } |
| |
| static const struct wl_drm_listener drm_listener = { |
| drm_handle_device, |
| drm_handle_format, |
| drm_handle_authenticated |
| }; |
| |
| static VAStatus |
| va_DisplayContextGetDriverName( |
| VADisplayContextP pDisplayContext, |
| char **driver_name_ptr |
| ) |
| { |
| VADriverContextP const ctx = pDisplayContext->pDriverContext; |
| |
| return VA_DRM_GetDriverName(ctx, driver_name_ptr); |
| } |
| |
| void |
| va_wayland_drm_destroy(VADisplayContextP pDisplayContext) |
| { |
| VADriverContextP const ctx = pDisplayContext->pDriverContext; |
| struct va_wayland_drm_context * const wl_drm_ctx = pDisplayContext->opaque; |
| struct drm_state * const drm_state = ctx->drm_state; |
| |
| if (wl_drm_ctx->drm) { |
| wl_drm_destroy(wl_drm_ctx->drm); |
| wl_drm_ctx->drm = NULL; |
| } |
| wl_drm_ctx->is_authenticated = 0; |
| |
| if (wl_drm_ctx->handle) { |
| dlclose(wl_drm_ctx->handle); |
| wl_drm_ctx->handle = NULL; |
| } |
| |
| if (drm_state) { |
| if (drm_state->fd >= 0) { |
| close(drm_state->fd); |
| drm_state->fd = -1; |
| } |
| free(ctx->drm_state); |
| ctx->drm_state = NULL; |
| } |
| } |
| |
| static void |
| registry_handle_global( |
| void *data, |
| struct wl_registry *registry, |
| uint32_t id, |
| const char *interface, |
| uint32_t version |
| ) |
| { |
| struct va_wayland_drm_context *wl_drm_ctx = data; |
| |
| if (strcmp(interface, "wl_drm") == 0) { |
| wl_drm_ctx->drm = |
| wl_registry_bind(wl_drm_ctx->registry, id, wl_drm_ctx->drm_interface, 1); |
| } |
| } |
| |
| static const struct wl_registry_listener registry_listener = { |
| registry_handle_global, |
| NULL, |
| }; |
| |
| bool |
| va_wayland_drm_create(VADisplayContextP pDisplayContext) |
| { |
| VADriverContextP const ctx = pDisplayContext->pDriverContext; |
| struct va_wayland_drm_context *wl_drm_ctx; |
| struct drm_state *drm_state; |
| uint32_t id; |
| |
| wl_drm_ctx = malloc(sizeof(*wl_drm_ctx)); |
| if (!wl_drm_ctx) |
| return false; |
| wl_drm_ctx->base.destroy = va_wayland_drm_destroy; |
| wl_drm_ctx->handle = NULL; |
| wl_drm_ctx->drm = NULL; |
| wl_drm_ctx->drm_interface = NULL; |
| wl_drm_ctx->is_authenticated = 0; |
| pDisplayContext->opaque = wl_drm_ctx; |
| pDisplayContext->vaGetDriverName = va_DisplayContextGetDriverName; |
| |
| drm_state = calloc(1, sizeof(struct drm_state)); |
| if (!drm_state) |
| return false; |
| drm_state->fd = -1; |
| drm_state->auth_type = 0; |
| ctx->drm_state = drm_state; |
| |
| wl_drm_ctx->handle = dlopen(LIBWAYLAND_DRM_NAME, RTLD_LAZY|RTLD_LOCAL); |
| if (!wl_drm_ctx->handle) |
| return false; |
| |
| wl_drm_ctx->drm_interface = |
| dlsym(wl_drm_ctx->handle, "wl_drm_interface"); |
| if (!wl_drm_ctx->drm_interface) |
| return false; |
| |
| wl_drm_ctx->registry = wl_display_get_registry(ctx->native_dpy); |
| wl_registry_add_listener(wl_drm_ctx->registry, ®istry_listener, wl_drm_ctx); |
| wl_display_roundtrip(ctx->native_dpy); |
| |
| /* registry_handle_global should have been called by the |
| * wl_display_roundtrip above |
| */ |
| |
| if (!wl_drm_ctx->drm) |
| return false; |
| |
| wl_drm_add_listener(wl_drm_ctx->drm, &drm_listener, pDisplayContext); |
| wl_display_roundtrip(ctx->native_dpy); |
| if (drm_state->fd < 0) |
| return false; |
| |
| wl_display_roundtrip(ctx->native_dpy); |
| if (!wl_drm_ctx->is_authenticated) |
| return false; |
| return true; |
| } |