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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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15
backend/x11/backend.c
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@ -232,7 +232,7 @@ static void handle_display_destroy(struct wl_listener *listener, void *data) {
}
struct wlr_backend *wlr_x11_backend_create(struct wl_display *display,
const char *x11_display) {
const char *x11_display, wlr_renderer_create_func_t create_renderer_func) {
struct wlr_x11_backend *x11 = calloc(1, sizeof(*x11));
if (!x11) {
return NULL;
@ -267,15 +267,16 @@ struct wlr_backend *wlr_x11_backend_create(struct wl_display *display,
x11->screen = xcb_setup_roots_iterator(xcb_get_setup(x11->xcb_conn)).data;
if (!wlr_egl_init(&x11->egl, EGL_PLATFORM_X11_KHR, x11->xlib_conn, NULL,
x11->screen->root_visual)) {
goto error_event;
if (!create_renderer_func) {
create_renderer_func = wlr_renderer_autocreate;
}
x11->renderer = wlr_gles2_renderer_create(&x11->egl);
x11->renderer = create_renderer_func(&x11->egl, EGL_PLATFORM_X11_KHR,
x11->xlib_conn, NULL, x11->screen->root_visual);
if (x11->renderer == NULL) {
wlr_log(L_ERROR, "Failed to create renderer");
goto error_egl;
goto error_event;
}
wlr_input_device_init(&x11->keyboard_dev, WLR_INPUT_DEVICE_KEYBOARD,
@ -288,8 +289,6 @@ struct wlr_backend *wlr_x11_backend_create(struct wl_display *display,
return &x11->backend;
error_egl:
wlr_egl_finish(&x11->egl);
error_event:
wl_event_source_remove(x11->event_source);
error_x11: