From 745d5a072d8669d1bc35e7c1f28b75b3484542e8 Mon Sep 17 00:00:00 2001
From: Paweł Redman <pawel.redman@gmail.com>
Date: Wed, 30 Mar 2016 20:29:08 +0200
Subject: Finish ITC; implement async sim control.

---
 src/common.h | 38 +++++++++++++++++++++++++++++++-------
 1 file changed, 31 insertions(+), 7 deletions(-)

(limited to 'src/common.h')

diff --git a/src/common.h b/src/common.h
index ee9c3fe..1b8e719 100644
--- a/src/common.h
+++ b/src/common.h
@@ -149,6 +149,28 @@ static inline void mst2_dump(mst2_t M)
 	printf("[%f\t%f\t%f]\n", 0.0, 0.0, 1.0);
 }
 
+// itc
+
+typedef struct itc_message_s itc_message;
+struct itc_message_s {
+	int number;
+	void *data;
+
+	itc_message *older, *newer;
+};
+
+typedef struct {
+	itc_message *newest, *oldest;
+	SDL_mutex *mutex;
+	SDL_sem *sem;
+} itc_chan;
+
+void itc_chan_create(itc_chan *chan);
+void itc_chan_destroy(itc_chan *chan);
+void itc_chan_push(itc_chan *chan, int number, void *data);
+int itc_chan_pop(itc_chan *chan, int *number, void **data);
+int itc_chan_pop_block(itc_chan *chan, int *number, void **data);
+
 // physics
 
 typedef struct {
@@ -164,12 +186,12 @@ typedef struct {
 	float *H;
 } phy_field_em;
 
-/*
-typedef struct {
-	int num;
-	void *data;
-} phy_command;
-*/
+enum {
+	PHY_CMD_QUIT,
+	PHY_CMD_PAUSE,
+	PHY_CMD_RESUME,
+	PHY_CMD_STEP
+};
 
 typedef struct {
 	phy_field_info field_info;
@@ -177,6 +199,9 @@ typedef struct {
 	float *field_eps, *field_mu; //permittivity and permeability
 	float time;
 
+	// UI stuff
+	bool running;
+	itc_chan ctl;
 	SDL_mutex *rotate_lock;
 } phy_sim;
 
@@ -253,4 +278,3 @@ void ui_renderer_window_register(r_window *rw);
 
 void ui_event(SDL_Event *event);
 void ui_draw(phy_sim *sim);
-
-- 
cgit