668 lines
20 KiB
C
668 lines
20 KiB
C
#define _POSIX_C_SOURCE 200809L
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#include <assert.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <sys/mman.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <drm_fourcc.h>
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#include <wayland-server-core.h>
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#include <xf86drm.h>
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#include <wlr/backend/interface.h>
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#include <wlr/interfaces/wlr_output.h>
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#include <wlr/util/log.h>
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#include "backend/wayland.h"
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#include "render/drm_format_set.h"
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#include "render/pixel_format.h"
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#include "drm-client-protocol.h"
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#include "linux-dmabuf-unstable-v1-client-protocol.h"
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#include "pointer-gestures-unstable-v1-client-protocol.h"
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#include "presentation-time-client-protocol.h"
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#include "xdg-activation-v1-client-protocol.h"
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#include "xdg-decoration-unstable-v1-client-protocol.h"
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#include "xdg-shell-client-protocol.h"
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#include "tablet-unstable-v2-client-protocol.h"
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#include "relative-pointer-unstable-v1-client-protocol.h"
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struct wlr_wl_linux_dmabuf_feedback_v1 {
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struct wlr_wl_backend *backend;
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dev_t main_device_id;
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struct wlr_wl_linux_dmabuf_v1_table_entry *format_table;
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size_t format_table_size;
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dev_t tranche_target_device_id;
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};
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struct wlr_wl_linux_dmabuf_v1_table_entry {
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uint32_t format;
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uint32_t pad; /* unused */
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uint64_t modifier;
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};
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struct wlr_wl_backend *get_wl_backend_from_backend(struct wlr_backend *backend) {
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assert(wlr_backend_is_wl(backend));
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return (struct wlr_wl_backend *)backend;
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}
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static int dispatch_events(int fd, uint32_t mask, void *data) {
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struct wlr_wl_backend *wl = data;
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if ((mask & WL_EVENT_HANGUP) || (mask & WL_EVENT_ERROR)) {
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if (mask & WL_EVENT_ERROR) {
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wlr_log(WLR_ERROR, "Failed to read from remote Wayland display");
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}
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wl_display_terminate(wl->local_display);
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return 0;
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}
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int count = 0;
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if (mask & WL_EVENT_READABLE) {
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count = wl_display_dispatch(wl->remote_display);
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}
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if (mask & WL_EVENT_WRITABLE) {
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wl_display_flush(wl->remote_display);
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}
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if (mask == 0) {
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count = wl_display_dispatch_pending(wl->remote_display);
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wl_display_flush(wl->remote_display);
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}
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if (count < 0) {
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wlr_log(WLR_ERROR, "Failed to dispatch remote Wayland display");
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wl_display_terminate(wl->local_display);
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return 0;
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}
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return count;
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}
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static void xdg_wm_base_handle_ping(void *data,
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struct xdg_wm_base *base, uint32_t serial) {
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xdg_wm_base_pong(base, serial);
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}
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static const struct xdg_wm_base_listener xdg_wm_base_listener = {
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xdg_wm_base_handle_ping,
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};
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static void presentation_handle_clock_id(void *data,
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struct wp_presentation *presentation, uint32_t clock) {
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struct wlr_wl_backend *wl = data;
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wl->presentation_clock = clock;
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}
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static const struct wp_presentation_listener presentation_listener = {
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.clock_id = presentation_handle_clock_id,
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};
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static void linux_dmabuf_v1_handle_format(void *data,
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struct zwp_linux_dmabuf_v1 *linux_dmabuf_v1, uint32_t format) {
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// Note, this event is deprecated
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struct wlr_wl_backend *wl = data;
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wlr_drm_format_set_add(&wl->linux_dmabuf_v1_formats, format,
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DRM_FORMAT_MOD_INVALID);
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}
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static void linux_dmabuf_v1_handle_modifier(void *data,
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struct zwp_linux_dmabuf_v1 *linux_dmabuf_v1, uint32_t format,
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uint32_t modifier_hi, uint32_t modifier_lo) {
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struct wlr_wl_backend *wl = data;
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uint64_t modifier = ((uint64_t)modifier_hi << 32) | modifier_lo;
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wlr_drm_format_set_add(&wl->linux_dmabuf_v1_formats, format, modifier);
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}
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static const struct zwp_linux_dmabuf_v1_listener linux_dmabuf_v1_listener = {
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.format = linux_dmabuf_v1_handle_format,
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.modifier = linux_dmabuf_v1_handle_modifier,
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};
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static void linux_dmabuf_feedback_v1_handle_done(void *data,
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struct zwp_linux_dmabuf_feedback_v1 *feedback) {
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// This space is intentionally left blank
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}
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static void linux_dmabuf_feedback_v1_handle_format_table(void *data,
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struct zwp_linux_dmabuf_feedback_v1 *feedback, int fd, uint32_t size) {
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struct wlr_wl_linux_dmabuf_feedback_v1 *feedback_data = data;
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feedback_data->format_table = NULL;
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void *table_data = mmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, 0);
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if (table_data == MAP_FAILED) {
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wlr_log_errno(WLR_ERROR, "failed to mmap DMA-BUF format table");
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} else {
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feedback_data->format_table = table_data;
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feedback_data->format_table_size = size;
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}
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close(fd);
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}
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static void linux_dmabuf_feedback_v1_handle_main_device(void *data,
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struct zwp_linux_dmabuf_feedback_v1 *feedback,
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struct wl_array *dev_id_arr) {
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struct wlr_wl_linux_dmabuf_feedback_v1 *feedback_data = data;
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dev_t dev_id;
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assert(dev_id_arr->size == sizeof(dev_id));
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memcpy(&dev_id, dev_id_arr->data, sizeof(dev_id));
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feedback_data->main_device_id = dev_id;
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drmDevice *device = NULL;
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if (drmGetDeviceFromDevId(dev_id, 0, &device) != 0) {
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wlr_log_errno(WLR_ERROR, "drmGetDeviceFromDevId failed");
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return;
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}
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const char *name = NULL;
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if (device->available_nodes & (1 << DRM_NODE_RENDER)) {
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name = device->nodes[DRM_NODE_RENDER];
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} else {
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// Likely a split display/render setup. Pick the primary node and hope
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// Mesa will open the right render node under-the-hood.
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assert(device->available_nodes & (1 << DRM_NODE_PRIMARY));
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name = device->nodes[DRM_NODE_PRIMARY];
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wlr_log(WLR_DEBUG, "DRM device %s has no render node, "
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"falling back to primary node", name);
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}
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feedback_data->backend->drm_render_name = strdup(name);
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drmFreeDevice(&device);
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}
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static void linux_dmabuf_feedback_v1_handle_tranche_done(void *data,
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struct zwp_linux_dmabuf_feedback_v1 *feedback) {
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struct wlr_wl_linux_dmabuf_feedback_v1 *feedback_data = data;
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feedback_data->tranche_target_device_id = 0;
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}
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static void linux_dmabuf_feedback_v1_handle_tranche_target_device(void *data,
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struct zwp_linux_dmabuf_feedback_v1 *feedback,
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struct wl_array *dev_id_arr) {
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struct wlr_wl_linux_dmabuf_feedback_v1 *feedback_data = data;
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dev_t dev_id;
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assert(dev_id_arr->size == sizeof(dev_id));
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memcpy(&dev_id, dev_id_arr->data, sizeof(dev_id));
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feedback_data->tranche_target_device_id = dev_id;
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}
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static void linux_dmabuf_feedback_v1_handle_tranche_formats(void *data,
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struct zwp_linux_dmabuf_feedback_v1 *feedback,
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struct wl_array *indices_arr) {
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struct wlr_wl_linux_dmabuf_feedback_v1 *feedback_data = data;
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if (feedback_data->format_table == NULL) {
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return;
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}
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if (feedback_data->tranche_target_device_id != feedback_data->main_device_id) {
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return;
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}
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size_t table_cap = feedback_data->format_table_size /
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sizeof(struct wlr_wl_linux_dmabuf_v1_table_entry);
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uint16_t *index_ptr;
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wl_array_for_each(index_ptr, indices_arr) {
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assert(*index_ptr < table_cap);
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const struct wlr_wl_linux_dmabuf_v1_table_entry *entry =
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&feedback_data->format_table[*index_ptr];
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wlr_drm_format_set_add(&feedback_data->backend->linux_dmabuf_v1_formats,
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entry->format, entry->modifier);
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}
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}
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static void linux_dmabuf_feedback_v1_handle_tranche_flags(void *data,
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struct zwp_linux_dmabuf_feedback_v1 *feedback, uint32_t flags) {
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// TODO: handle SCANOUT flag
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}
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static const struct zwp_linux_dmabuf_feedback_v1_listener
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linux_dmabuf_feedback_v1_listener = {
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.done = linux_dmabuf_feedback_v1_handle_done,
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.format_table = linux_dmabuf_feedback_v1_handle_format_table,
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.main_device = linux_dmabuf_feedback_v1_handle_main_device,
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.tranche_done = linux_dmabuf_feedback_v1_handle_tranche_done,
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.tranche_target_device = linux_dmabuf_feedback_v1_handle_tranche_target_device,
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.tranche_formats = linux_dmabuf_feedback_v1_handle_tranche_formats,
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.tranche_flags = linux_dmabuf_feedback_v1_handle_tranche_flags,
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};
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static bool device_has_name(const drmDevice *device, const char *name) {
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for (size_t i = 0; i < DRM_NODE_MAX; i++) {
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if (!(device->available_nodes & (1 << i))) {
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continue;
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}
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if (strcmp(device->nodes[i], name) == 0) {
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return true;
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}
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}
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return false;
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}
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static char *get_render_name(const char *name) {
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uint32_t flags = 0;
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int devices_len = drmGetDevices2(flags, NULL, 0);
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if (devices_len < 0) {
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wlr_log(WLR_ERROR, "drmGetDevices2 failed: %s", strerror(-devices_len));
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return NULL;
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}
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drmDevice **devices = calloc(devices_len, sizeof(drmDevice *));
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if (devices == NULL) {
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wlr_log_errno(WLR_ERROR, "Allocation failed");
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return NULL;
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}
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devices_len = drmGetDevices2(flags, devices, devices_len);
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if (devices_len < 0) {
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free(devices);
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wlr_log(WLR_ERROR, "drmGetDevices2 failed: %s", strerror(-devices_len));
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return NULL;
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}
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const drmDevice *match = NULL;
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for (int i = 0; i < devices_len; i++) {
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if (device_has_name(devices[i], name)) {
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match = devices[i];
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break;
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}
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}
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char *render_name = NULL;
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if (match == NULL) {
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wlr_log(WLR_ERROR, "Cannot find DRM device %s", name);
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} else if (!(match->available_nodes & (1 << DRM_NODE_RENDER))) {
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// Likely a split display/render setup. Pick the primary node and hope
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// Mesa will open the right render node under-the-hood.
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wlr_log(WLR_DEBUG, "DRM device %s has no render node, "
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"falling back to primary node", name);
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assert(match->available_nodes & (1 << DRM_NODE_PRIMARY));
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render_name = strdup(match->nodes[DRM_NODE_PRIMARY]);
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} else {
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render_name = strdup(match->nodes[DRM_NODE_RENDER]);
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}
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for (int i = 0; i < devices_len; i++) {
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drmFreeDevice(&devices[i]);
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}
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free(devices);
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return render_name;
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}
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static void legacy_drm_handle_device(void *data, struct wl_drm *drm,
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const char *name) {
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struct wlr_wl_backend *wl = data;
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wl->drm_render_name = get_render_name(name);
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}
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static void legacy_drm_handle_format(void *data, struct wl_drm *drm,
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uint32_t format) {
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// This space is intentionally left blank
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}
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static void legacy_drm_handle_authenticated(void *data, struct wl_drm *drm) {
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// This space is intentionally left blank
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}
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static void legacy_drm_handle_capabilities(void *data, struct wl_drm *drm,
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uint32_t caps) {
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// This space is intentionally left blank
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}
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static const struct wl_drm_listener legacy_drm_listener = {
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.device = legacy_drm_handle_device,
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.format = legacy_drm_handle_format,
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.authenticated = legacy_drm_handle_authenticated,
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.capabilities = legacy_drm_handle_capabilities,
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};
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static void shm_handle_format(void *data, struct wl_shm *shm,
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uint32_t shm_format) {
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struct wlr_wl_backend *wl = data;
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uint32_t drm_format = convert_wl_shm_format_to_drm(shm_format);
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wlr_drm_format_set_add(&wl->shm_formats, drm_format, DRM_FORMAT_MOD_INVALID);
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}
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static const struct wl_shm_listener shm_listener = {
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.format = shm_handle_format,
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};
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static void registry_global(void *data, struct wl_registry *registry,
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uint32_t name, const char *iface, uint32_t version) {
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struct wlr_wl_backend *wl = data;
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wlr_log(WLR_DEBUG, "Remote wayland global: %s v%" PRIu32, iface, version);
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if (strcmp(iface, wl_compositor_interface.name) == 0) {
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wl->compositor = wl_registry_bind(registry, name,
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&wl_compositor_interface, 4);
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} else if (strcmp(iface, wl_seat_interface.name) == 0) {
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uint32_t target_version = version;
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if (version < 5) {
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target_version = 5;
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}
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if (version > 8) {
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target_version = 8;
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}
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struct wl_seat *wl_seat = wl_registry_bind(registry, name,
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&wl_seat_interface, target_version);
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if (!create_wl_seat(wl_seat, wl)) {
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wl_seat_destroy(wl_seat);
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}
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} else if (strcmp(iface, xdg_wm_base_interface.name) == 0) {
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wl->xdg_wm_base = wl_registry_bind(registry, name,
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&xdg_wm_base_interface, 1);
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xdg_wm_base_add_listener(wl->xdg_wm_base, &xdg_wm_base_listener, NULL);
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} else if (strcmp(iface, zxdg_decoration_manager_v1_interface.name) == 0) {
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wl->zxdg_decoration_manager_v1 = wl_registry_bind(registry, name,
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&zxdg_decoration_manager_v1_interface, 1);
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} else if (strcmp(iface, zwp_pointer_gestures_v1_interface.name) == 0) {
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wl->zwp_pointer_gestures_v1 = wl_registry_bind(registry, name,
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&zwp_pointer_gestures_v1_interface, version < 3 ? version : 3);
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} else if (strcmp(iface, wp_presentation_interface.name) == 0) {
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wl->presentation = wl_registry_bind(registry, name,
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&wp_presentation_interface, 1);
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wp_presentation_add_listener(wl->presentation,
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&presentation_listener, wl);
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} else if (strcmp(iface, zwp_tablet_manager_v2_interface.name) == 0) {
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wl->tablet_manager = wl_registry_bind(registry, name,
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&zwp_tablet_manager_v2_interface, 1);
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} else if (strcmp(iface, zwp_linux_dmabuf_v1_interface.name) == 0 &&
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version >= 3) {
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wl->zwp_linux_dmabuf_v1 = wl_registry_bind(registry, name,
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&zwp_linux_dmabuf_v1_interface, version >= 4 ? 4 : version);
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zwp_linux_dmabuf_v1_add_listener(wl->zwp_linux_dmabuf_v1,
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&linux_dmabuf_v1_listener, wl);
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} else if (strcmp(iface, zwp_relative_pointer_manager_v1_interface.name) == 0) {
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wl->zwp_relative_pointer_manager_v1 = wl_registry_bind(registry, name,
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&zwp_relative_pointer_manager_v1_interface, 1);
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} else if (strcmp(iface, wl_drm_interface.name) == 0) {
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wl->legacy_drm = wl_registry_bind(registry, name, &wl_drm_interface, 1);
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wl_drm_add_listener(wl->legacy_drm, &legacy_drm_listener, wl);
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} else if (strcmp(iface, wl_shm_interface.name) == 0) {
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wl->shm = wl_registry_bind(registry, name, &wl_shm_interface, 1);
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wl_shm_add_listener(wl->shm, &shm_listener, wl);
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} else if (strcmp(iface, xdg_activation_v1_interface.name) == 0) {
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wl->activation_v1 = wl_registry_bind(registry, name,
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&xdg_activation_v1_interface, 1);
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}
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}
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static void registry_global_remove(void *data, struct wl_registry *registry,
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uint32_t name) {
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// TODO
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}
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static const struct wl_registry_listener registry_listener = {
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.global = registry_global,
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.global_remove = registry_global_remove
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};
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/*
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* Initializes the wayland backend. Opens a connection to a remote wayland
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* compositor and creates surfaces for each output, then registers globals on
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* the specified display.
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*/
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static bool backend_start(struct wlr_backend *backend) {
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struct wlr_wl_backend *wl = get_wl_backend_from_backend(backend);
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wlr_log(WLR_INFO, "Starting Wayland backend");
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wl->started = true;
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struct wlr_wl_seat *seat;
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wl_list_for_each(seat, &wl->seats, link) {
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if (seat->wl_keyboard) {
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init_seat_keyboard(seat);
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}
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if (seat->wl_touch) {
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init_seat_touch(seat);
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}
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if (wl->tablet_manager) {
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init_seat_tablet(seat);
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}
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}
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for (size_t i = 0; i < wl->requested_outputs; ++i) {
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wlr_wl_output_create(&wl->backend);
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}
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return true;
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}
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static void backend_destroy(struct wlr_backend *backend) {
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if (!backend) {
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return;
|
|
}
|
|
|
|
struct wlr_wl_backend *wl = get_wl_backend_from_backend(backend);
|
|
|
|
struct wlr_wl_output *output, *tmp_output;
|
|
wl_list_for_each_safe(output, tmp_output, &wl->outputs, link) {
|
|
wlr_output_destroy(&output->wlr_output);
|
|
}
|
|
|
|
// Avoid using wl_list_for_each_safe() here: destroying a buffer may
|
|
// have the side-effect of destroying the next one in the list
|
|
while (!wl_list_empty(&wl->buffers)) {
|
|
struct wlr_wl_buffer *buffer = wl_container_of(wl->buffers.next, buffer, link);
|
|
destroy_wl_buffer(buffer);
|
|
}
|
|
|
|
wlr_backend_finish(backend);
|
|
|
|
wl_list_remove(&wl->local_display_destroy.link);
|
|
|
|
wl_event_source_remove(wl->remote_display_src);
|
|
|
|
close(wl->drm_fd);
|
|
|
|
wlr_drm_format_set_finish(&wl->shm_formats);
|
|
wlr_drm_format_set_finish(&wl->linux_dmabuf_v1_formats);
|
|
|
|
struct wlr_wl_seat *seat, *tmp_seat;
|
|
wl_list_for_each_safe(seat, tmp_seat, &wl->seats, link) {
|
|
destroy_wl_seat(seat);
|
|
}
|
|
|
|
if (wl->zxdg_decoration_manager_v1) {
|
|
zxdg_decoration_manager_v1_destroy(wl->zxdg_decoration_manager_v1);
|
|
}
|
|
if (wl->zwp_pointer_gestures_v1) {
|
|
zwp_pointer_gestures_v1_destroy(wl->zwp_pointer_gestures_v1);
|
|
}
|
|
if (wl->presentation) {
|
|
wp_presentation_destroy(wl->presentation);
|
|
}
|
|
if (wl->zwp_linux_dmabuf_v1) {
|
|
zwp_linux_dmabuf_v1_destroy(wl->zwp_linux_dmabuf_v1);
|
|
}
|
|
if (wl->shm) {
|
|
wl_shm_destroy(wl->shm);
|
|
}
|
|
if (wl->zwp_relative_pointer_manager_v1) {
|
|
zwp_relative_pointer_manager_v1_destroy(wl->zwp_relative_pointer_manager_v1);
|
|
}
|
|
free(wl->drm_render_name);
|
|
free(wl->activation_token);
|
|
xdg_wm_base_destroy(wl->xdg_wm_base);
|
|
wl_compositor_destroy(wl->compositor);
|
|
wl_registry_destroy(wl->registry);
|
|
wl_display_flush(wl->remote_display);
|
|
wl_display_disconnect(wl->remote_display);
|
|
free(wl);
|
|
}
|
|
|
|
static clockid_t backend_get_presentation_clock(struct wlr_backend *backend) {
|
|
struct wlr_wl_backend *wl = get_wl_backend_from_backend(backend);
|
|
return wl->presentation_clock;
|
|
}
|
|
|
|
static int backend_get_drm_fd(struct wlr_backend *backend) {
|
|
struct wlr_wl_backend *wl = get_wl_backend_from_backend(backend);
|
|
return wl->drm_fd;
|
|
}
|
|
|
|
static uint32_t get_buffer_caps(struct wlr_backend *backend) {
|
|
struct wlr_wl_backend *wl = get_wl_backend_from_backend(backend);
|
|
return (wl->zwp_linux_dmabuf_v1 ? WLR_BUFFER_CAP_DMABUF : 0)
|
|
| (wl->shm ? WLR_BUFFER_CAP_SHM : 0);
|
|
}
|
|
|
|
static const struct wlr_backend_impl backend_impl = {
|
|
.start = backend_start,
|
|
.destroy = backend_destroy,
|
|
.get_presentation_clock = backend_get_presentation_clock,
|
|
.get_drm_fd = backend_get_drm_fd,
|
|
.get_buffer_caps = get_buffer_caps,
|
|
};
|
|
|
|
bool wlr_backend_is_wl(struct wlr_backend *b) {
|
|
return b->impl == &backend_impl;
|
|
}
|
|
|
|
static void handle_display_destroy(struct wl_listener *listener, void *data) {
|
|
struct wlr_wl_backend *wl =
|
|
wl_container_of(listener, wl, local_display_destroy);
|
|
backend_destroy(&wl->backend);
|
|
}
|
|
|
|
struct wlr_backend *wlr_wl_backend_create(struct wl_display *display,
|
|
const char *remote) {
|
|
wlr_log(WLR_INFO, "Creating wayland backend");
|
|
|
|
struct wlr_wl_backend *wl = calloc(1, sizeof(*wl));
|
|
if (!wl) {
|
|
wlr_log_errno(WLR_ERROR, "Allocation failed");
|
|
return NULL;
|
|
}
|
|
|
|
wlr_backend_init(&wl->backend, &backend_impl);
|
|
|
|
wl->local_display = display;
|
|
wl_list_init(&wl->outputs);
|
|
wl_list_init(&wl->seats);
|
|
wl_list_init(&wl->buffers);
|
|
wl->presentation_clock = CLOCK_MONOTONIC;
|
|
|
|
wl->remote_display = wl_display_connect(remote);
|
|
if (!wl->remote_display) {
|
|
wlr_log_errno(WLR_ERROR, "Could not connect to remote display");
|
|
goto error_wl;
|
|
}
|
|
|
|
wl->registry = wl_display_get_registry(wl->remote_display);
|
|
if (!wl->registry) {
|
|
wlr_log_errno(WLR_ERROR, "Could not obtain reference to remote registry");
|
|
goto error_display;
|
|
}
|
|
wl_registry_add_listener(wl->registry, ®istry_listener, wl);
|
|
|
|
wl_display_roundtrip(wl->remote_display); // get globals
|
|
|
|
if (!wl->compositor) {
|
|
wlr_log(WLR_ERROR,
|
|
"Remote Wayland compositor does not support wl_compositor");
|
|
goto error_registry;
|
|
}
|
|
if (!wl->xdg_wm_base) {
|
|
wlr_log(WLR_ERROR,
|
|
"Remote Wayland compositor does not support xdg-shell");
|
|
goto error_registry;
|
|
}
|
|
|
|
struct zwp_linux_dmabuf_feedback_v1 *linux_dmabuf_feedback_v1 = NULL;
|
|
struct wlr_wl_linux_dmabuf_feedback_v1 feedback_data = { .backend = wl };
|
|
if (wl->zwp_linux_dmabuf_v1 != NULL &&
|
|
zwp_linux_dmabuf_v1_get_version(wl->zwp_linux_dmabuf_v1) >=
|
|
ZWP_LINUX_DMABUF_V1_GET_DEFAULT_FEEDBACK_SINCE_VERSION) {
|
|
linux_dmabuf_feedback_v1 =
|
|
zwp_linux_dmabuf_v1_get_default_feedback(wl->zwp_linux_dmabuf_v1);
|
|
if (linux_dmabuf_feedback_v1 == NULL) {
|
|
wlr_log(WLR_ERROR, "Allocation failed");
|
|
goto error_registry;
|
|
}
|
|
zwp_linux_dmabuf_feedback_v1_add_listener(linux_dmabuf_feedback_v1,
|
|
&linux_dmabuf_feedback_v1_listener, &feedback_data);
|
|
|
|
if (wl->legacy_drm != NULL) {
|
|
wl_drm_destroy(wl->legacy_drm);
|
|
wl->legacy_drm = NULL;
|
|
}
|
|
}
|
|
|
|
wl_display_roundtrip(wl->remote_display); // get linux-dmabuf formats
|
|
|
|
if (feedback_data.format_table != NULL) {
|
|
munmap(feedback_data.format_table, feedback_data.format_table_size);
|
|
}
|
|
if (linux_dmabuf_feedback_v1 != NULL) {
|
|
zwp_linux_dmabuf_feedback_v1_destroy(linux_dmabuf_feedback_v1);
|
|
}
|
|
|
|
struct wl_event_loop *loop = wl_display_get_event_loop(wl->local_display);
|
|
int fd = wl_display_get_fd(wl->remote_display);
|
|
wl->remote_display_src = wl_event_loop_add_fd(loop, fd, WL_EVENT_READABLE,
|
|
dispatch_events, wl);
|
|
if (!wl->remote_display_src) {
|
|
wlr_log(WLR_ERROR, "Failed to create event source");
|
|
goto error_registry;
|
|
}
|
|
wl_event_source_check(wl->remote_display_src);
|
|
|
|
if (wl->drm_render_name != NULL) {
|
|
wlr_log(WLR_DEBUG, "Opening DRM render node %s", wl->drm_render_name);
|
|
wl->drm_fd = open(wl->drm_render_name, O_RDWR | O_NONBLOCK | O_CLOEXEC);
|
|
if (wl->drm_fd < 0) {
|
|
wlr_log_errno(WLR_ERROR, "Failed to open DRM render node %s",
|
|
wl->drm_render_name);
|
|
goto error_remote_display_src;
|
|
}
|
|
} else {
|
|
wl->drm_fd = -1;
|
|
}
|
|
|
|
wl->local_display_destroy.notify = handle_display_destroy;
|
|
wl_display_add_destroy_listener(display, &wl->local_display_destroy);
|
|
|
|
const char *token = getenv("XDG_ACTIVATION_TOKEN");
|
|
if (token != NULL) {
|
|
wl->activation_token = strdup(token);
|
|
unsetenv("XDG_ACTIVATION_TOKEN");
|
|
}
|
|
|
|
return &wl->backend;
|
|
|
|
error_remote_display_src:
|
|
wl_event_source_remove(wl->remote_display_src);
|
|
error_registry:
|
|
free(wl->drm_render_name);
|
|
if (wl->compositor) {
|
|
wl_compositor_destroy(wl->compositor);
|
|
}
|
|
if (wl->xdg_wm_base) {
|
|
xdg_wm_base_destroy(wl->xdg_wm_base);
|
|
}
|
|
wl_registry_destroy(wl->registry);
|
|
error_display:
|
|
wl_display_disconnect(wl->remote_display);
|
|
error_wl:
|
|
wlr_backend_finish(&wl->backend);
|
|
free(wl);
|
|
return NULL;
|
|
}
|
|
|
|
struct wl_display *wlr_wl_backend_get_remote_display(struct wlr_backend *backend) {
|
|
struct wlr_wl_backend *wl = get_wl_backend_from_backend(backend);
|
|
return wl->remote_display;
|
|
}
|