1 files changed, 78 insertions, 0 deletions
diff --git a/wlcore/wl_shm.c b/wlcore/wl_shm.c
new file mode 100644
index 00000000..824b3620
--- /dev/null
+++ b/wlcore/wl_shm.c
@@ -0,0 +1,78 @@
+#include <assert.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <wayland-server.h>
+#include <wlr/wlcore/wl_shm.h>
+#include <wlr/util/list.h>
+#include <wlr/util/log.h>
+#include <wlr/render.h>
+
+struct wlr_wl_shm {
+	struct wl_global *wl_global;
+	struct wl_list resources;
+	struct wl_list pools;
+	list_t *formats;
+};
+
+static void wl_shm_destroy(struct wl_resource *resource) {
+	struct wlr_wl_shm *shm = wl_resource_get_user_data(resource);
+	struct wl_resource *_resource = NULL;
+	wl_resource_for_each(_resource, &shm->resources) {
+		if (_resource == resource) {
+			struct wl_list *link = wl_resource_get_link(_resource);
+			wl_list_remove(link);
+			break;
+		}
+	}
+}
+
+struct wl_shm_interface wl_shm_impl = {
+	//.create_pool = wl_shm_create_pool
+};
+
+static void wl_shm_bind(struct wl_client *wl_client, void *_wlr_wl_shm,
+		uint32_t version, uint32_t id) {
+	struct wlr_wl_shm *wlr_shm = _wlr_wl_shm;
+	assert(wl_client && wlr_shm);
+	if (version > 1) {
+		wlr_log(L_ERROR, "Client requested unsupported wl_shm version, disconnecting");
+		wl_client_destroy(wl_client);
+		return;
+	}
+	struct wl_resource *wl_resource = wl_resource_create(
+			wl_client, &wl_shm_interface, version, id);
+	wl_resource_set_implementation(wl_resource, &wl_shm_impl,
+			wlr_shm, wl_shm_destroy);
+	wl_list_insert(&wlr_shm->resources, wl_resource_get_link(wl_resource));
+	for (size_t i = 0; i < wlr_shm->formats->length; ++i) {
+		uint32_t *f = wlr_shm->formats->items[i];
+		wl_shm_send_format(wl_resource, *f);
+	}
+}
+
+struct wlr_wl_shm *wlr_wl_shm_init(struct wl_display *display) {
+	struct wlr_wl_shm *shm = calloc(1, sizeof(struct wlr_wl_shm));
+	wl_list_init(&shm->resources);
+	wl_list_init(&shm->pools);
+	shm->formats = list_create();
+	shm->wl_global = wl_global_create(display, &wl_shm_interface, 1,
+			shm, wl_shm_bind);
+	return shm;
+}
+
+void wlr_wl_shm_add_format(struct wlr_wl_shm *shm, enum wl_shm_format format) {
+	assert(shm);
+	uint32_t *f = calloc(1, sizeof(uint32_t));
+	*f = format;
+	list_add(shm->formats, f);
+}
+
+void wlr_wl_shm_add_renderer_formats(struct wlr_wl_shm *shm,
+		struct wlr_renderer *renderer) {
+	assert(shm && renderer);
+	size_t len;
+	const enum wl_shm_format *formats = wlr_renderer_get_formats(renderer, &len);
+	for (size_t i = 0; i < len; ++i) {
+		wlr_wl_shm_add_format(shm, formats[i]);
+	}
+}