1 files changed, 77 insertions, 0 deletions
diff --git a/example/pointer.c b/example/pointer.c
new file mode 100644
index 00000000..969fb721
--- /dev/null
+++ b/example/pointer.c
@@ -0,0 +1,77 @@
+#define _POSIX_C_SOURCE 199309L
+#define _XOPEN_SOURCE 500
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <string.h>
+#include <unistd.h>
+#include <wayland-server.h>
+#include <wayland-server-protocol.h>
+#include <xkbcommon/xkbcommon.h>
+#include <GLES3/gl3.h>
+#include <wlr/render/matrix.h>
+#include <wlr/render/gles3.h>
+#include <wlr/render.h>
+#include <wlr/backend.h>
+#include <wlr/session.h>
+#include <wlr/types.h>
+#include <math.h>
+#include "shared.h"
+#include "cat.h"
+
+struct sample_state {
+	struct wlr_renderer *renderer;
+	struct wlr_surface *cat_texture;
+	int cur_x, cur_y;
+};
+
+static void handle_output_frame(struct output_state *output, struct timespec *ts) {
+	struct compositor_state *state = output->compositor;
+	struct sample_state *sample = state->data;
+	struct wlr_output *wlr_output = output->output;
+
+	wlr_renderer_begin(sample->renderer, wlr_output);
+
+	float matrix[16];
+	wlr_surface_get_matrix(sample->cat_texture, &matrix,
+		&wlr_output->transform_matrix, sample->cur_x, sample->cur_y);
+	wlr_render_with_matrix(sample->renderer,
+			sample->cat_texture, &matrix);
+
+	wlr_renderer_end(sample->renderer);
+}
+
+static void handle_keyboard_key(struct keyboard_state *kbstate,
+		xkb_keysym_t sym, enum wlr_key_state key_state) {
+	if (sym == XKB_KEY_Escape) {
+		kbstate->compositor->exit = true;
+	}
+}
+
+static void handle_pointer_motion(struct pointer_state *pstate,
+		double d_x, double d_y) {
+	struct sample_state *state = pstate->compositor->data;
+	state->cur_x += d_x;
+	state->cur_y += d_y;
+}
+
+int main(int argc, char *argv[]) {
+	struct sample_state state = { 0 };
+	struct compositor_state compositor;
+
+	compositor_init(&compositor);
+	compositor.output_frame_cb = handle_output_frame;
+	compositor.pointer_motion_cb = handle_pointer_motion;
+	compositor.keyboard_key_cb = handle_keyboard_key;
+
+	state.renderer = wlr_gles3_renderer_init();
+	state.cat_texture = wlr_render_surface_init(state.renderer);
+	wlr_surface_attach_pixels(state.cat_texture, GL_RGB,
+		cat_tex.width, cat_tex.height, cat_tex.pixel_data);
+
+	compositor.data = &state;
+	compositor_run(&compositor);
+
+	wlr_surface_destroy(state.cat_texture);
+	wlr_renderer_destroy(state.renderer);
+}