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backends: implement custom EGL and renderer initialization

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Compositors now have more control over how the backend creates its
renderer. Currently all backends create an EGL/GLES2 renderer, so
the necessary attributes for creating the context are passed to a
user-provided callback function. It is responsible for initializing
provided wlr_egl and to return a renderer. On fail, return 0.

Fixes #987
This commit is contained in:
Ilia Bozhinov 2018-05-25 13:14:35 +03:00
parent a0eb37e2ea
commit 24cf70ae96
22 changed files with 106 additions and 69 deletions
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5
backend/drm/backend.c
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@ -114,7 +114,8 @@ static void handle_display_destroy(struct wl_listener *listener, void *data) {
}
struct wlr_backend *wlr_drm_backend_create(struct wl_display *display,
struct wlr_session *session, int gpu_fd, struct wlr_backend *parent) {
struct wlr_session *session, int gpu_fd, struct wlr_backend *parent,
wlr_renderer_create_func_t create_renderer_func) {
assert(display && session && gpu_fd >= 0);
assert(!parent || wlr_backend_is_drm(parent));
@ -161,7 +162,7 @@ struct wlr_backend *wlr_drm_backend_create(struct wl_display *display,
goto error_event;
}
if (!init_drm_renderer(drm, &drm->renderer)) {
if (!init_drm_renderer(drm, &drm->renderer, create_renderer_func)) {
wlr_log(L_ERROR, "Failed to initialize renderer");
goto error_event;
}