From 9da3c2188060dc982412d7a6e1cd2051b9ddb6a6 Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Tue, 19 Oct 2021 22:12:52 +0200
Subject: Change from callback to window poll

---
 src/window/window.c | 54 ++++++++++++++++++++---------------------------------
 1 file changed, 20 insertions(+), 34 deletions(-)

(limited to 'src/window')

diff --git a/src/window/window.c b/src/window/window.c
index c155687..d81f98e 100644
--- a/src/window/window.c
+++ b/src/window/window.c
@@ -37,13 +37,12 @@ static void mgl_window_on_resize(mgl_window *self, int width, int height) {
     context->gl.glOrtho(0.0, width, height, 0.0, -1.0, 1.0);
 }
 
-int mgl_window_create(mgl_window *self, const char *title, int width, int height, mgl_window_callback *callback) {
-    return mgl_window_create_with_params(self, title, width, height, 0, callback);
+int mgl_window_create(mgl_window *self, const char *title, int width, int height) {
+    return mgl_window_create_with_params(self, title, width, height, 0);
 }
 
-int mgl_window_create_with_params(mgl_window *self, const char *title, int width, int height, unsigned long parent_window, mgl_window_callback *callback) {
+int mgl_window_create_with_params(mgl_window *self, const char *title, int width, int height, mgl_window_handle parent_window) {
     self->window = 0;
-    self->callback = *callback;
 
     mgl_context *context = mgl_get_context();
 
@@ -127,40 +126,27 @@ static void mgl_window_on_receive_event(mgl_window *self, XEvent *xev) {
     }
 }
 
-void mgl_window_events_poll(mgl_window *self) {
+void mgl_window_clear(mgl_window *self, mgl_color color) {
+    mgl_context *context = mgl_get_context();
+    context->gl.glClear(GL_COLOR_BUFFER_BIT);
+    context->gl.glClearColor((float)color.r / 255.0f, (float)color.g / 255.0f, (float)color.b / 255.0f, (float)color.a / 255.0f);
+}
+
+bool mgl_window_events_poll(mgl_window *self, mgl_event *event) {
+    /* TODO: Use |event| */
+
     Display *display = mgl_get_context()->connection;
-    const int x11_fd = ConnectionNumber(display);
-
-    fd_set in_fds;
-    FD_ZERO(&in_fds); /* TODO: Optimize */
-    FD_SET(x11_fd, &in_fds);
-
-    struct timeval tv;
-    tv.tv_sec = 0;
-    tv.tv_usec = 0;
-    /*tv.tv_sec = timeout_ms / 1000;
-    tv.tv_usec = (timeout_ms * 1000) - (tv.tv_sec * 1000 * 1000);*/
-
-    /* TODO: Is this needed when using XPending? */
-    /*const int num_ready_fds = select(1 + x11_fd, &in_fds, NULL, NULL, &tv);*/
-    const int num_ready_fds = 1;
-    if(num_ready_fds > 0) {
-        XEvent xev;
-        while(self->window && XPending(display)) {
-            XNextEvent(display, &xev);
-            mgl_window_on_receive_event(self, &xev);
-        }
-    } else if(num_ready_fds == -1 && errno != EINTR) {
-        /* TODO: */
-        fprintf(stderr, "Disconnected!\n");
+    if(XPending(display)) {
+        XEvent xev; /* TODO: Move to window struct */
+        XNextEvent(display, &xev);
+        mgl_window_on_receive_event(self, &xev);
+        return true;
+    } else {
+        return false;
     }
 }
 
-void mgl_window_draw(mgl_window *self) {
+void mgl_window_display(mgl_window *self) {
     mgl_context *context = mgl_get_context();
-    context->gl.glClear(GL_COLOR_BUFFER_BIT);
-    context->gl.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
-    if(self->callback.draw)
-        self->callback.draw(self, self->callback.userdata);
     context->gl.glXSwapBuffers(context->connection, self->window);
 }
-- 
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