WIP testing non-callback

glonkers.c

@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include <stdlib.h>
+#include <stdbool.h>
 #include <signal.h>
 #include <time.h> 
 #include <stdint.h>
@@ -55,11 +56,23 @@ int main(int argc, char *argv[]) {
 
     Renderer renderer = new_renderer();
 
-    while (state.running) {
+    bool running = true;
+    while (running) {
         double time = time_since_start();
-        render(&renderer, state.width, state.height, time, shader_path, 0);
-        commit(&state);
+
+        struct event event;
+        wait_for_event(&state, &event);
+        if (event.type == EVENT_DRAW) {
+            int width = event.data.draw.width;
+            int height = event.data.draw.height;
+            render(&renderer, width, height, time, shader_path, 0);
+        }
     }
+    //while (state.running) {
+    //    double time = time_since_start();
+    //    render(&renderer, state.width, state.height, time, shader_path, 0);
+    //    commit(&state);
+    //}
 
     return 0;
 }

wayland.c

@@ -295,9 +295,13 @@ void wayland_init(struct client_state *state, int output_type) {
     }
 
     egl_init(state);
+    
+    // TODO fix frame callbacks for all surfaces
+
 }
 
 /// Swaps front/backbuffers and dispatches pending wayland commands.
+// TODO move logic to wait_for_event
 void commit(struct client_state *state) {
     struct surface_list *next = state->surface_list;
     while (next != NULL) {
@@ -316,3 +320,7 @@ void commit(struct client_state *state) {
     }
 }
 
+void wait_for_event(struct client_state *state, struct event event) {
+    wl_display_dispatch(state->wl_display);
+}
+

wayland.h

@@ -43,6 +43,20 @@ struct client_state {
     EGLContext egl_context;
 };
 
+#define EVENT_DRAW 0
+
+struct event {
+    int type;
+    union {
+        /// EVENT_DRAW
+        struct {
+            int width, height;
+        } draw;
+    } data;
+};
+
 void wayland_init(struct client_state *state, int output_type);
 void commit(struct client_state *state);
+/// Provide pointer to be filled.
+void wait_for_event(struct client_state *state, struct event event);