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; }