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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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18
backend/wayland/backend.c
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@ -139,7 +139,7 @@ static void handle_display_destroy(struct wl_listener *listener, void *data) {
}
struct wlr_backend *wlr_wl_backend_create(struct wl_display *display,
const char *remote) {
const char *remote, wlr_renderer_create_func_t create_renderer_func) {
wlr_log(L_INFO, "Creating wayland backend");
struct wlr_wl_backend *backend = calloc(1, sizeof(struct wlr_wl_backend));
@ -174,14 +174,14 @@ struct wlr_backend *wlr_wl_backend_create(struct wl_display *display,
EGL_ALPHA_SIZE, 1,
EGL_NONE,
};
if (!wlr_egl_init(&backend->egl, EGL_PLATFORM_WAYLAND_EXT,
backend->remote_display, config_attribs, WL_SHM_FORMAT_ARGB8888)) {
wlr_log(L_ERROR, "Could not initialize EGL");
goto error_egl;
}
wlr_egl_bind_display(&backend->egl, backend->local_display);
backend->renderer = wlr_gles2_renderer_create(&backend->egl);
if (!create_renderer_func) {
create_renderer_func = wlr_renderer_autocreate;
}
backend->renderer = create_renderer_func(&backend->egl, EGL_PLATFORM_WAYLAND_EXT,
backend->remote_display, config_attribs, WL_SHM_FORMAT_ARGB8888);
if (backend->renderer == NULL) {
wlr_log(L_ERROR, "Could not create renderer");
goto error_renderer;
@ -193,8 +193,6 @@ struct wlr_backend *wlr_wl_backend_create(struct wl_display *display,
return &backend->backend;
error_renderer:
wlr_egl_finish(&backend->egl);
error_egl:
wl_registry_destroy(backend->registry);
error_registry:
wl_display_disconnect(backend->remote_display);