# HG changeset patch
# User John Tsiombikas <nuclear@member.fsf.org>
# Date 1402700202 -10800
# Node ID 5143908d0220a9b89abde9157bd82937188ba256
# Parent  b7130fe3f07364db013114517f5560c03e6a20de
fixed

diff -r b7130fe3f073 -r 5143908d0220 src/main.c
--- a/src/main.c	Fri Jun 13 19:10:11 2014 +0300
+++ b/src/main.c	Sat Jun 14 01:56:42 2014 +0300
@@ -1,5 +1,11 @@
+#include <stdint.h>
 #include "gbasys.h"
 #include "logger.h"
+#include "sincos.h"
+
+#define GFX_MODE	VMODE_LFB_160x128_16
+#define WIDTH		160
+#define HEIGHT		128
 
 static void draw(void);
 static void keyb(int key, int pressed);
@@ -14,6 +20,7 @@
 int main(void)
 {
 	gba_init();
+
 	interrupt(INTR_KEY, keyb_intr);
 
 	set_video_mode(VMODE_LFB_160x128_16, 1);
@@ -22,6 +29,8 @@
 	set_text_writebg(1);
 	logmsg(LOG_ALL, "please wait...\n");
 
+	sincos_init();
+
 	for(;;) {
 		/* process events */
 		while(evhead != evtail) {
@@ -29,18 +38,64 @@
 			evhead = (evhead + 1) % EVQ_SIZE;
 			keyb(ev, 1);
 		}
+
+		/* this is needed because there's no key release interrupt (!) */
+		keystate = get_key_state(KEY_ALL);
+
 		draw();
 	}
 	return 0;
 }
 
+static int offset;
+
 static void draw(void)
 {
+	int i, j;
+	unsigned long msec = get_millisec();
+	uint16_t *pixels = back_buffer->pixels;
+
+	clear_buffer(back_buffer, 0);
+
+	for(i=0; i<WIDTH; i++) {
+		int16_t x = 2 * (i - offset) * SINLUT_SIZE / WIDTH;
+		int16_t y = sin_int(x);
+		y = HEIGHT - (y * (HEIGHT / 2) / SINLUT_SCALE / 2 + HEIGHT / 2);
+
+		pixels[y * WIDTH + i] = RGB(255, 0, 0);
+
+		y = cos_int(x);
+		y = HEIGHT - (y * (HEIGHT / 2) / SINLUT_SCALE / 2 + HEIGHT / 2);
+
+		pixels[y * WIDTH + i] = RGB(0, 255, 0);
+
+		if(i == offset) {
+			for(j=0; j<HEIGHT; j++) {
+				pixels[j * WIDTH + i] = RGB(255, 255, 0);
+			}
+		}
+	}
+
+	flip();
 }
 
 static void keyb(int key, int pressed)
 {
-	static const char *keyname[] = {
+	switch(key) {
+	case KEY_LEFT:
+		logmsg(LOG_DBG, "foo! (%d)\n", offset);
+		--offset;
+		break;
+
+	case KEY_RIGHT:
+		logmsg(LOG_DBG, "bar! (%d)\n", offset);
+		++offset;
+		break;
+
+	default:
+		break;
+	}
+	/*static const char *keyname[] = {
 		"A", "B", "select", "start", "right", "left", "up", "down", "RT", "LT"
 	};
 	int i;
@@ -53,6 +108,7 @@
 	if(i < sizeof keyname / sizeof *keyname) {
 		logmsg(LOG_ALL, "key %s %s\n", keyname[i], pressed ? "pressed" : "released");
 	}
+	*/
 }
 
 static void keyb_intr(void)