/** \brief Draw a box on the canvas using the given character.
*
* This function never fails.
*
* \param cv The handle to the libcaca canvas.
* \param x X coordinate of the upper-left corner of the box.
* \param y Y coordinate of the upper-left corner of the box.
* \param w Width of the box.
* \param h Height of the box.
* \param ch UTF-32 character to be used to draw the box.
* \return This function always returns 0.
*/
int caca_draw_box(caca_canvas_t *cv, int x, int y, int w, int h, uint32_t ch)
{
int x2 = x + w - 1;
int y2 = y + h - 1;
caca_draw_line(cv, x, y, x, y2, ch);
caca_draw_line(cv, x, y2, x2, y2, ch);
caca_draw_line(cv, x2, y2, x2, y, ch);
caca_draw_line(cv, x2, y, x, y, ch);
return 0;
}
int main(int argc, char *argv[])
{
char const * const *list;
caca_display_t *dp;
caca_canvas_t *cv;
list = caca_get_display_driver_list();
dp = caca_create_display(NULL);
if(dp == NULL)
{
printf("cannot create display\n");
return -1;
}
cv = caca_get_canvas(dp);
caca_set_color_ansi(cv, CACA_WHITE, CACA_BLACK);
while(1)
{
char const *driver;
int i, cur = 0;
caca_put_str(cv, 1, 0, "Available drivers:");
driver = caca_get_display_driver(dp);
for(i = 0; list[i]; i += 2)
{
int match = !strcmp(list[i], driver);
if(match)
cur = i;
caca_draw_line(cv, 0, i + 2, 9999, i + 2, ' ');
caca_printf(cv, 2, i + 2, "%c %s (%s)",
match ? '*' : ' ', list[i], list[i + 1]);
}
caca_put_str(cv, 1, i + 2, "Switching driver in 5 seconds");
caca_refresh_display(dp);
if(caca_get_event(dp, CACA_EVENT_KEY_PRESS, NULL, 5000000))
break;
do
{
cur += 2;
if(list[cur] && !strcmp(list[cur], "raw"))
cur += 2;
if(!list[cur])
cur = 0;
}
while(caca_set_display_driver(dp, list[cur]));
}
caca_free_display(dp);
return 0;
}
void line(int x0, int y0, int x1, int y1) {
if (!pt.PT_USE_DITHERING) {
caca_draw_line(pt.cv, x0 * X_SCALE, y0, x1 * X_SCALE, y1, pt.C_pixel);
} else {
int dx = abs( x1 - x0 );
int dy = abs( y1 - y0 );
int sx = 0;
int sy = 0;
if ( x0 < x1 ) {
sx = 1;
} else {
sx = -1;
}
if ( y0 < y1 ) {
sy = 1;
} else {
sy = -1;
}
int err = ( dx - dy );
while (1) {
set_pixel_in_bitmap(x0, y0, pt.C_color);
if ( x0 == x1 && y0 == y1 ) {
break;
}
int e2 = 2 * err;
if ( e2 > dy * -1 ) {
err = err - dy;
x0 = x0 + sx;
}
if ( e2 < dx ) {
err = err + dx;
y0 = y0 + sy;
}
}
}
}
int main(int argc, char **argv)
{
caca_event_t *events;
int i, h, quit;
cv = caca_create_canvas(80, 24);
if(cv == NULL)
{
printf("Failed to create canvas\n");
return 1;
}
dp = caca_create_display(cv);
if(dp == NULL)
{
printf("Failed to create display\n");
return 1;
}
h = caca_get_canvas_height(cv) - 1;
caca_set_color_ansi(cv, CACA_WHITE, CACA_BLUE);
caca_draw_line(cv, 0, 0, caca_get_canvas_width(cv) - 1, 0, ' ');
caca_draw_line(cv, 0, h, caca_get_canvas_width(cv) - 1, h, ' ');
caca_put_str(cv, 0, h, "type \"quit\" to exit");
caca_refresh_display(dp);
events = malloc(h * sizeof(caca_event_t));
memset(events, 0, h * sizeof(caca_event_t));
for(quit = 0; quit < 4; )
{
caca_event_t ev;
static char const * quit_string[] = { "", "q", "qu", "qui", "quit" };
int ret = caca_get_event(dp, CACA_EVENT_ANY, &ev, -1);
if(!ret)
continue;
do
{
/* "quit" quits */
if(caca_get_event_type(&ev) & CACA_EVENT_KEY_PRESS)
{
int key = caca_get_event_key_ch(&ev);
if((key == 'q' && quit == 0) || (key == 'u' && quit == 1)
|| (key == 'i' && quit == 2) || (key == 't' && quit == 3))
quit++;
else if(key == 'q')
quit = 1;
else
quit = 0;
}
memmove(events + 1, events, (h - 1) * sizeof(caca_event_t));
events[0] = ev;
ret = caca_get_event(dp, CACA_EVENT_ANY, &ev, 0);
}
while(ret);
caca_set_color_ansi(cv, CACA_LIGHTGRAY, CACA_BLACK);
caca_clear_canvas(cv);
/* Print current event */
caca_set_color_ansi(cv, CACA_WHITE, CACA_BLUE);
caca_draw_line(cv, 0, 0, caca_get_canvas_width(cv) - 1, 0, ' ');
print_event(0, 0, events);
caca_draw_line(cv, 0, h, caca_get_canvas_width(cv) - 1, h, ' ');
caca_printf(cv, 0, h, "type \"quit\" to exit: %s", quit_string[quit]);
/* Print previous events */
caca_set_color_ansi(cv, CACA_WHITE, CACA_BLACK);
for(i = 1; i < h && caca_get_event_type(&events[i]); i++)
print_event(0, i, events + i);
caca_refresh_display(dp);
}
/* Clean up */
free(events);
caca_free_display(dp);
caca_free_canvas(cv);
return 0;
}
int main(int argc, char **argv){
SDL_AudioSpec requested, obtained;
int quit = 0;
int xo, yo;
int i, j, k;
int meter[4];
static char chars[10] =
{
'+', '-', '*', '#', 'X', '@', '%', '$', 'M', 'W'
};
caca_display_t *dp;
caca_canvas_t *cv;
caca_canvas_t *pineapple;
if(SDL_Init( SDL_INIT_AUDIO ) < 0){
err(1, "Couldnt initialize SDL\n");
exit(1);
}
cv = caca_create_canvas(80, 24);
pineapple = caca_create_canvas(0, 0);
if((cv == NULL) || (pineapple == NULL)){
printf("failed to create canvas\n");
return 1;
}
dp = caca_create_display(cv);
caca_set_display_time(dp, 20000);
if(dp == NULL){
printf("Failed to create display\n");
return 1;
}
caca_import_file(pineapple, "./pineapple", "");
atexit(SDL_Quit);
requested.freq = 16000;
requested.format = AUDIO_U8;
requested.samples = 256;
requested.callback = audiocb;
requested.channels = 1;
if(SDL_OpenAudio(&requested, &obtained) == -1){
err(1, "SDL_OpenAudio");
}
initchip();
loadfile(argv[1]);
SDL_PauseAudio(0);
silence();
startplaysong(0);
while(!quit)
{
caca_event_t ev;
caca_set_color_ansi(cv, CACA_DEFAULT, CACA_DEFAULT);
caca_clear_canvas(cv);
xo = caca_get_canvas_width(cv);
yo = caca_get_canvas_height(cv);
//caca_blit(cv, 0, 0, pineapple, NULL);
caca_blit(cv, 55, 0, pineapple, NULL);
caca_set_color_ansi(cv, caca_rand(0, 16), caca_rand(0, 16));
caca_put_str(cv, (xo - strlen("pineapple player")) / 2, (yo / 2) - 5, "pineapple player");
caca_set_color_ansi(cv, caca_rand(0, 16), caca_rand(0, 16));
caca_printf(cv, (xo - strlen("song pos -> ")) / 2, (yo / 2) - 3, "song pos -> %x", songpos);
for(i = 0; i < 4; i ++)
meter[i] = (osc[i].volume*20)/255;
/* note visualizer */
i = 0;
for(j = 0; j < 25; j=j+6){
for(k = 0; k < 4; k++){
caca_draw_line(cv, (((xo/2)+10)-j)-k, yo, (((xo/2)+10)-j)-k, yo - meter[i],
chars[caca_rand(0, 9)]);
}
i++;
}
for(i = 0; i < 4; i ++)
caca_printf(cv, 0, i, "%0x", osc[i].volume);
while(caca_get_event(dp, CACA_EVENT_ANY, &ev, 0))
{
if(caca_get_event_type(&ev) & CACA_EVENT_KEY_PRESS)
{
switch(caca_get_event_key_ch(&ev))
{
case 'q':
case 'Q':
case CACA_KEY_ESCAPE:
quit = 1;
break;
}
}
}
caca_refresh_display(dp);
}
silence();
caca_free_display(dp);
caca_free_canvas(cv);
return 0;
}
JNIEXPORT void JNICALL
Java_org_zoy_caca_Canvas_canvasDrawLine(JNIEnv *env, jclass cls, jlong ptr, jint x1, jint y1,
jint x2, jint y2, jint ch)
{
caca_draw_line((caca_canvas_t *)ptr, x1, y1, x2, y2, ch);
}
