compositor: Add loading headless backend

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Change-Id: Ifa5f48c5656408f66c1212e48cde85a22d32be35

diff --git a/src/compositor.c b/src/compositor.c
index 614c847..d0f441c 100644 (file)
--- a/src/compositor.c
+++ b/src/compositor.c
@@ -39,6 +39,7 @@
 
 #include <libweston/backend-drm.h>
 #include <libweston/backend-wayland.h>
+#include <libweston/backend-headless.h>
 #ifdef HAVE_BACKEND_X11
 #include <libweston/backend-x11.h>
 #endif
@@ -283,6 +284,7 @@ windowed_configure_output(struct ivi_output *output)
        if (ivi->cmdline.scale)
                weston_output_set_scale(output->output, ivi->cmdline.scale);
 
+       weston_log("windowed_configure_output() to width %d x height %d\n", width, height);
        if (ivi->window_api->output_set_size(output->output, width, height) < 0) {
                weston_log("Cannot configure output '%s' using weston_windowed_output_api.\n",
                           output->name);
@@ -1084,6 +1086,55 @@ load_x11_backend(struct ivi_compositor *ivi, int *argc, char *argv[])
 }
 #endif
 
+static int
+load_headless_backend(struct ivi_compositor *ivi, int *argc, char **argv)
+{
+       struct weston_headless_backend_config config = {{ 0, }};
+       int ret = 0;
+
+       bool use_pixman;
+       bool fullscreen;
+       bool use_gl;
+       int output_count;
+
+       struct weston_compositor *c = ivi->compositor;
+
+       const struct weston_option options[] = {
+               { WESTON_OPTION_BOOLEAN, "use-pixman", 0, &use_pixman },
+               { WESTON_OPTION_BOOLEAN, "use-gl", 0, &use_gl },
+       };
+
+       windowed_parse_common_options(ivi, argc, argv, &use_pixman,
+                                     &fullscreen, &output_count);
+
+       parse_options(options, ARRAY_LENGTH(options), argc, argv);
+       config.use_pixman = use_pixman;
+       config.use_gl = use_gl;
+
+       config.base.struct_version = WESTON_HEADLESS_BACKEND_CONFIG_VERSION;
+       config.base.struct_size = sizeof(struct weston_headless_backend_config);
+
+       /* load the actual wayland backend and configure it */
+       ret = weston_compositor_load_backend(c, WESTON_BACKEND_HEADLESS,
+                                            &config.base);
+
+       if (ret < 0)
+               return ret;
+
+       ivi->window_api = weston_windowed_output_get_api(c);
+       if (!ivi->window_api) {
+               weston_log("Cannot use weston_windowed_output_api.\n");
+               return -1;
+       }
+
+       if (ivi->window_api->create_head(c, "headless") < 0) {
+               weston_log("Cannot create headless back-end\n");
+               return -1;
+       }
+
+       return 0;
+}
+
 static int
 load_backend(struct ivi_compositor *ivi, const char *backend,
             int *argc, char *argv[])
@@ -1094,6 +1145,8 @@ load_backend(struct ivi_compositor *ivi, const char *backend,
                return load_wayland_backend(ivi, argc, argv);
        } else if (strcmp(backend, "x11-backend.so") == 0) {
                return load_x11_backend(ivi, argc, argv);
+       } else if (strcmp(backend, "headless-backend.so") == 0) {
+               return load_headless_backend(ivi, argc, argv);
        }
 
        weston_log("fatal: unknown backend '%s'.\n", backend);
@@ -1437,6 +1490,7 @@ usage(int error_code)
                        "\t\t\t\tdrm-backend.so\n"
                        "\t\t\t\twayland-backend.so\n"
                        "\t\t\t\tx11-backend.so\n"
+                       "\t\t\t\theadless-backend.so\n"
                "  -S, --socket=NAME\tName of socket to listen on\n"
                "  --log=FILE\t\tLog to the given file\n"
                "  -c, --config=FILE\tConfig file to load, defaults to agl-compositor.ini\n"