int main(int argc, char *argv[])
{
caca_canvas_t *cv, *pig;
void *buffer;
size_t len;
int i, j;
pig = caca_create_canvas(0, 0);
caca_import_canvas_from_memory(pig, STRING, strlen(STRING), "text");
cv = caca_create_canvas(caca_get_canvas_width(pig) * 2,
caca_get_canvas_height(pig) * 2);
if(cv == NULL || pig == NULL)
{
printf("Can't created canvas\n");
return -1;
}
caca_blit(cv, 0, 0, pig, NULL);
caca_flip(pig);
caca_blit(cv, caca_get_canvas_width(pig), 0, pig, NULL);
caca_flip(pig);
caca_flop(pig);
caca_blit(cv, 0, caca_get_canvas_height(pig), pig, NULL);
caca_flop(pig);
caca_rotate_180(pig);
caca_blit(cv, caca_get_canvas_width(pig),
caca_get_canvas_height(pig), pig, NULL);
for(j = 0; j < caca_get_canvas_height(cv); j++)
{
for(i = 0; i < caca_get_canvas_width(cv); i += 2)
{
unsigned long int a;
caca_set_color_ansi(cv, CACA_LIGHTBLUE + (i + j) % 6,
CACA_DEFAULT);
a = caca_get_attr(cv, -1, -1);
caca_put_attr(cv, i, j, a);
caca_put_attr(cv, i + 1, j, a);
}
}
buffer = caca_export_canvas_to_memory(cv, "utf8", &len);
fwrite(buffer, len, 1, stdout);
free(buffer);
caca_rotate_left(cv);
buffer = caca_export_canvas_to_memory(cv, "utf8", &len);
fwrite(buffer, len, 1, stdout);
free(buffer);
caca_free_canvas(pig);
caca_free_canvas(cv);
return 0;
}
cucul_buffer_t * cucul_export_canvas(cucul_canvas_t *cv, char const *format)
{
cucul_buffer_t *ex;
ex = malloc(sizeof(cucul_buffer_t));
if(!ex)
{
seterrno(ENOMEM);
return NULL;
}
ex->data = caca_export_canvas_to_memory(cv, format, &ex->size);
if(!ex->data)
{
free(ex);
return NULL;
}
ex->user_data = 0;
return ex;
}
int main(int argc, char *argv[])
{
caca_canvas_t *cv;
caca_dither_t *dither;
void *buffer;
char *file, *format;
char const * const * exports, * const * p;
size_t len;
int x, y;
exports = caca_get_export_list();
if(argc < 2 || argc > 3)
{
fprintf(stderr, "%s: wrong argument count\n", argv[0]);
fprintf(stderr, "usage: %s [file] <format>\n", argv[0]);
fprintf(stderr, "where <format> is one of:\n");
for(p = exports; *p; p += 2)
fprintf(stderr, " \"%s\" (%s)\n", *p, *(p + 1));
exit(-1);
}
if(argc == 2)
{
file = NULL;
format = argv[1];
}
else
{
file = argv[1];
format = argv[2];
}
for(p = exports; *p; p += 2)
if(!strcasecmp(format, *p))
break;
if(!*p)
{
fprintf(stderr, "%s: unknown format `%s'\n", argv[0], format);
fprintf(stderr, "please use one of:\n");
for(p = exports; *p; p += 2)
fprintf(stderr, " \"%s\" (%s)\n", *p, *(p + 1));
exit(-1);
}
if(file)
{
cv = caca_create_canvas(0, 0);
if(caca_import_canvas_from_file(cv, file, "") < 0)
{
fprintf(stderr, "%s: `%s' has unknown format\n", argv[0], file);
exit(-1);
}
}
else
{
cv = caca_create_canvas(WIDTH, HEIGHT);
for(y = 0; y < 256; y++)
{
for(x = 0; x < 256; x++)
{
uint32_t r = x;
uint32_t g = (255 - y + x) / 2;
uint32_t b = y * (255 - x) / 256;
pixels[y * 256 + x] = (r << 16) | (g << 8) | (b << 0);
}
}
dither = caca_create_dither(32, 256, 256, 4 * 256,
0x00ff0000, 0x0000ff00, 0x000000ff, 0x0);
if(!strcmp(format, "ansi") || !strcmp(format, "utf8"))
caca_set_dither_charset(dither, "shades");
caca_dither_bitmap(cv, 0, 0, caca_get_canvas_width(cv),
caca_get_canvas_height(cv), dither, pixels);
caca_free_dither(dither);
caca_set_color_ansi(cv, CACA_WHITE, CACA_BLACK);
caca_draw_thin_box(cv, 0, 0, WIDTH - 1, HEIGHT - 1);
caca_set_color_ansi(cv, CACA_BLACK, CACA_WHITE);
caca_fill_ellipse(cv, WIDTH / 2, HEIGHT / 2,
WIDTH / 4, HEIGHT / 4, ' ');
caca_set_color_ansi(cv, CACA_LIGHTGRAY, CACA_BLACK);
caca_put_str(cv, WIDTH / 2 - 12, HEIGHT / 2 - 6,
" lightgray on black ");
caca_set_color_ansi(cv, CACA_DEFAULT, CACA_TRANSPARENT);
caca_put_str(cv, WIDTH / 2 - 12, HEIGHT / 2 - 5,
" default on transparent ");
caca_set_color_ansi(cv, CACA_BLACK, CACA_WHITE);
caca_put_str(cv, WIDTH / 2 - 12, HEIGHT / 2 - 4,
" black on white ");
caca_set_color_ansi(cv, CACA_BLACK, CACA_WHITE);
caca_put_str(cv, WIDTH / 2 - 8, HEIGHT / 2 - 3, "[<><><><> <>--<>]");
caca_put_str(cv, WIDTH / 2 - 8, HEIGHT / 2 - 2, "[ドラゴン ボーレ]");
caca_put_str(cv, WIDTH / 2 - 7, HEIGHT / 2 + 2, "äβç ░▒▓█▓▒░ ΔЗҒ");
caca_put_str(cv, WIDTH / 2 - 5, HEIGHT / 2 + 4, "(\") \\o/ <&>");
caca_set_attr(cv, CACA_BOLD);
caca_put_str(cv, WIDTH / 2 - 16, HEIGHT / 2 + 3, "Bold");
caca_set_attr(cv, CACA_BLINK);
caca_put_str(cv, WIDTH / 2 - 9, HEIGHT / 2 + 3, "Blink");
caca_set_attr(cv, CACA_ITALICS);
caca_put_str(cv, WIDTH / 2 - 1, HEIGHT / 2 + 3, "Italics");
caca_set_attr(cv, CACA_UNDERLINE);
caca_put_str(cv, WIDTH / 2 + 8, HEIGHT / 2 + 3, "Underline");
caca_set_attr(cv, 0);
caca_set_color_ansi(cv, CACA_WHITE, CACA_LIGHTBLUE);
caca_put_str(cv, WIDTH / 2 - 7, HEIGHT / 2, " LIBCACA ");
for(x = 0; x < 16; x++)
{
caca_set_color_argb(cv, 0xff00 | x, 0xf00f | (x << 4));
caca_put_char(cv, WIDTH / 2 - 7 + x, HEIGHT / 2 + 6, '#');
}
}
buffer = caca_export_canvas_to_memory(cv, format, &len);
fwrite(buffer, len, 1, stdout);
free(buffer);
caca_free_canvas(cv);
return 0;
}
static bool caca_gfx_frame(void *data, const void *frame,
unsigned frame_width, unsigned frame_height, uint64_t frame_count,
unsigned pitch, const char *msg)
{
size_t len = 0;
void *buffer = NULL;
const void *frame_to_copy = frame;
unsigned width = 0;
unsigned height = 0;
bool draw = true;
(void)data;
(void)frame;
(void)frame_width;
(void)frame_height;
(void)pitch;
(void)msg;
if (!frame || !frame_width || !frame_height)
return true;
if (caca_video_width != frame_width || caca_video_height != frame_height || caca_video_pitch != pitch)
{
if (frame_width > 4 && frame_height > 4)
{
caca_video_width = frame_width;
caca_video_height = frame_height;
caca_video_pitch = pitch;
caca_gfx_free(NULL);
caca_gfx_create();
}
}
if (!caca_cv)
return true;
if (caca_menu_frame)
frame_to_copy = caca_menu_frame;
width = caca_get_canvas_width(caca_cv);
height = caca_get_canvas_height(caca_cv);
if (frame_to_copy == frame && frame_width == 4 && frame_height == 4 && (frame_width < width && frame_height < height))
draw = false;
caca_clear_canvas(caca_cv);
#ifdef HAVE_MENU
menu_driver_ctl(RARCH_MENU_CTL_FRAME, NULL);
#endif
if (msg)
font_driver_render_msg(NULL, msg, NULL);
if (draw)
{
caca_dither_bitmap(caca_cv, 0, 0,
width,
height,
caca_dither, frame_to_copy);
buffer = caca_export_canvas_to_memory(caca_cv, "caca", &len);
if (buffer)
{
if (len)
caca_refresh_display(caca_display);
free(buffer);
}
}
return true;
}
