toaruos/apps/drawlines.c

111 lines
2.5 KiB
C

/* This file is part of ToaruOS and is released under the terms
* of the NCSA / University of Illinois License - see LICENSE.md
* Copyright (C) 2013-2018 K. Lange
*/
/*
* drawlines
*
* Test application to draw lines to a window.
*/
#include <stdlib.h>
#include <assert.h>
#include <syscall.h>
#include <unistd.h>
#include <toaru/yutani.h>
#include <toaru/graphics.h>
#include <toaru/pthread.h>
#define TRACE_APP_NAME "drawlines"
#include <toaru/trace.h>
static int left, top, width, height;
static yutani_t * yctx;
static yutani_window_t * wina;
static gfx_context_t * ctx;
static int should_exit = 0;
uint32_t __attribute__ ((pure)) krand(void) {
static uint32_t x = 123456789;
static uint32_t y = 362436069;
static uint32_t z = 521288629;
static uint32_t w = 88675123;
uint32_t t;
t = x ^ (x << 11);
x = y; y = z; z = w;
return w = w ^ (w >> 19) ^ t ^ (t >> 8);
}
void * draw_thread(void * garbage) {
(void)garbage;
while (!should_exit) {
draw_line(ctx, krand() % width, krand() % width, krand() % height, krand() % height, rgb(krand() % 255,krand() % 255,krand() % 255));
yutani_flip(yctx, wina);
usleep(16666);
}
pthread_exit(0);
return NULL;
}
int main (int argc, char ** argv) {
left = 100;
top = 100;
width = 500;
height = 500;
TRACE("Starting drawlines.");
yctx = yutani_init();
TRACE("Creating a window.");
wina = yutani_window_create(yctx, width, height);
TRACE("Move.");
yutani_window_move(yctx, wina, left, top);
TRACE("Advertise icon.");
yutani_window_advertise_icon(yctx, wina, "drawlines", "drawlines");
TRACE("Init graphics.");
ctx = init_graphics_yutani(wina);
draw_fill(ctx, rgb(0,0,0));
pthread_t thread;
pthread_create(&thread, NULL, draw_thread, NULL);
while (!should_exit) {
yutani_msg_t * m = yutani_poll(yctx);
if (m) {
switch (m->type) {
case YUTANI_MSG_KEY_EVENT:
{
struct yutani_msg_key_event * ke = (void*)m->data;
if (ke->event.action == KEY_ACTION_DOWN && ke->event.keycode == 'q') {
should_exit = 1;
syscall_yield();
}
}
break;
case YUTANI_MSG_WINDOW_MOUSE_EVENT:
{
struct yutani_msg_window_mouse_event * me = (void*)m->data;
if (me->command == YUTANI_MOUSE_EVENT_DOWN && me->buttons & YUTANI_MOUSE_BUTTON_LEFT) {
yutani_window_drag_start(yctx, wina);
}
}
break;
case YUTANI_MSG_WINDOW_CLOSE:
case YUTANI_MSG_SESSION_END:
should_exit = 1;
break;
default:
break;
}
}
free(m);
}
yutani_close(yctx, wina);
return 0;
}