From 30d9f5392fb07105e792963d74786024adc79dd5 Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Fri, 25 Aug 2023 03:06:42 +0200
Subject: Add monitor events, limit fps to monitor the window is in, reduce
 latency (glFinish, fps limit)

---
 include/mgl/gl.h            |  2 ++
 include/mgl/mgl.h           |  6 ++++++
 include/mgl/window/event.h  | 25 ++++++++++++++++++++++++-
 include/mgl/window/window.h | 15 +++++++++++++++
 4 files changed, 47 insertions(+), 1 deletion(-)

(limited to 'include/mgl')

diff --git a/include/mgl/gl.h b/include/mgl/gl.h
index cf2cd47..c1059b6 100644
--- a/include/mgl/gl.h
+++ b/include/mgl/gl.h
@@ -77,6 +77,8 @@ typedef struct {
     const unsigned char* (*glGetString)(unsigned int name);
     void (*glGetIntegerv)(unsigned int pname, int *params);
     void (*glPixelStorei)(unsigned int pname, int param);
+    void (*glFlush)(void);
+    void (*glFinish)(void);
 
     /* Optional*/
     void (*glXSwapIntervalEXT)(Display * dpy, GLXDrawable drawable, int interval);
diff --git a/include/mgl/mgl.h b/include/mgl/mgl.h
index f2373b7..4e1a181 100644
--- a/include/mgl/mgl.h
+++ b/include/mgl/mgl.h
@@ -13,6 +13,12 @@ struct mgl_context {
     unsigned long wm_delete_window_atom;
     unsigned long net_wm_ping_atom;
     unsigned long net_wm_pid_atom;
+
+    int render_event_base;
+    int render_error_base;
+
+    int randr_event_base;
+    int randr_error_base;
 };
 
 /*
diff --git a/include/mgl/window/event.h b/include/mgl/window/event.h
index 31af4f1..4813154 100644
--- a/include/mgl/window/event.h
+++ b/include/mgl/window/event.h
@@ -42,6 +42,23 @@ typedef struct {
     int y; /* relative to the top of the window */
 } mgl_mouse_move_event;
 
+typedef struct {
+    const char *name; /* This name may only be valid until the next time |mgl_window_poll_event| is called */
+    int id;
+    int x;
+    int y;
+    int width;
+    int height;
+    int refresh_rate; /* 0 if unknown */
+} mgl_monitor_generic_event;
+
+typedef mgl_monitor_generic_event mgl_monitor_connected_event;
+typedef mgl_monitor_generic_event mgl_monitor_property_changed_event;
+
+typedef struct {
+    int id;
+} mgl_monitor_disconnected_event;
+
 typedef enum {
     MGL_EVENT_UNKNOWN,
     MGL_EVENT_CLOSED, /* Window closed */
@@ -54,7 +71,10 @@ typedef enum {
     MGL_EVENT_MOUSE_BUTTON_PRESSED,
     MGL_EVENT_MOUSE_BUTTON_RELEASED,
     MGL_EVENT_MOUSE_WHEEL_SCROLLED,
-    MGL_EVENT_MOUSE_MOVED
+    MGL_EVENT_MOUSE_MOVED,
+    MGL_EVENT_MONITOR_CONNECTED,
+    MGL_EVENT_MONITOR_DISCONNECTED,
+    MGL_EVENT_MONITOR_PROPERTY_CHANGED,
 } mgl_event_type;
 
 struct mgl_event {
@@ -66,6 +86,9 @@ struct mgl_event {
         mgl_mouse_button_event mouse_button;
         mgl_mouse_wheel_scroll_event mouse_wheel_scroll;
         mgl_mouse_move_event mouse_move;
+        mgl_monitor_connected_event monitor_connected;
+        mgl_monitor_disconnected_event monitor_disconnected;
+        mgl_monitor_property_changed_event monitor_property_changed;
     };
 };
 
diff --git a/include/mgl/window/window.h b/include/mgl/window/window.h
index cb5a2eb..35b677d 100644
--- a/include/mgl/window/window.h
+++ b/include/mgl/window/window.h
@@ -27,9 +27,19 @@ typedef struct {
     mgl_vec2i size;
 } mgl_scissor;
 
+typedef struct {
+    int id; /* output id */
+    int crtc_id;
+    const char *name;
+    mgl_vec2i pos;
+    mgl_vec2i size;
+    int refresh_rate;
+} mgl_monitor;
+
 struct mgl_window {
     mgl_window_handle window;
     void *context;
+    mgl_vec2i pos;
     mgl_vec2i size;
     /* relative to the top left of the window. only updates when the cursor is inside the window */
     mgl_vec2i cursor_position;
@@ -40,11 +50,16 @@ struct mgl_window {
     bool key_repeat_enabled;
     bool vsync_enabled;
     double frame_time_limit;
+    double frame_time_limit_monitor;
     mgl_clock frame_timer;
     char *clipboard_string;
     size_t clipboard_size;
+
+    mgl_monitor *monitors; /* TODO: Move these to mgl file */
+    int num_monitors;
 };
 
+/* TODO: Some of these parameters only apply to new window */
 typedef struct {
     mgl_vec2i position;
     mgl_vec2i size;
-- 
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