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Add debug flag to re-enable wl_drm

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7e69a7076f ("Drop wl_drm") has dropped wl_drm, however a lot of
software wasn't quite ready for this (Xwayland, libva, amdvlk).
Keep wl_drm disabled by default to pressure the wl_drm phase-out,
but add a -Dlegacy-wl-drm flag for users to restore the previous
behavior in the meantime.

References: https://github.com/swaywm/sway/issues/7897
This commit is contained in:
Simon Ser 2024-01-20 10:57:01 +01:00 committed by Simon Zeni
parent ae33f4eb37
commit 08a06a7b6b
3 changed files with 8 additions and 0 deletions
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1
include/sway/server.h
View file

@ -156,6 +156,7 @@ struct sway_debug {
bool noatomic; // Ignore atomic layout updates
bool txn_timings; // Log verbose messages about transactions
bool txn_wait; // Always wait for the timeout before applying
bool legacy_wl_drm; // Enable the legacy wl_drm interface
};
extern struct sway_debug debug;

2
sway/main.c
View file

@ -162,6 +162,8 @@ void enable_debug_flag(const char *flag) {
debug.txn_timings = true;
} else if (strncmp(flag, "txn-timeout=", 12) == 0) {
server.txn_timeout_ms = atoi(&flag[12]);
} else if (strcmp(flag, "legacy-wl-drm") == 0) {
debug.legacy_wl_drm = true;
} else {
sway_log(SWAY_ERROR, "Unknown debug flag: %s", flag);
}

5
sway/server.c
View file

@ -13,6 +13,7 @@
#include <wlr/types/wlr_content_type_v1.h>
#include <wlr/types/wlr_cursor_shape_v1.h>
#include <wlr/types/wlr_data_control_v1.h>
#include <wlr/types/wlr_drm.h>
#include <wlr/types/wlr_export_dmabuf_v1.h>
#include <wlr/types/wlr_fractional_scale_v1.h>
#include <wlr/types/wlr_gamma_control_v1.h>
@ -191,6 +192,10 @@ bool server_init(struct sway_server *server) {
server->linux_dmabuf_v1 = wlr_linux_dmabuf_v1_create_with_renderer(
server->wl_display, 4, server->renderer);
}
if (wlr_renderer_get_dmabuf_texture_formats(server->renderer) != NULL &&
debug.legacy_wl_drm) {
wlr_drm_create(server->wl_display, server->renderer);
}
server->allocator = wlr_allocator_autocreate(server->backend,
server->renderer);