static int resize(void) { screen_w = caca_get_canvas_width(canvas); screen_h = caca_get_canvas_height(canvas); caca_free_dither(dither); talloc_free(dither_buffer); dither = caca_create_dither(bpp, image_width, image_height, depth * image_width, rmask, gmask, bmask, amask); if (dither == NULL) { mp_msg(MSGT_VO, MSGL_FATAL, "vo_caca: caca_create_dither failed!\n"); return ENOSYS; } dither_buffer = talloc_array(NULL, uint8_t, depth * image_width * image_height); /* Default libcaca features */ caca_set_dither_antialias(dither, dither_antialias); caca_set_dither_charset(dither, dither_charset); caca_set_dither_color(dither, dither_color); caca_set_dither_algorithm(dither, dither_algo); return 0; }
JNIEXPORT void JNICALL Java_org_zoy_caca_Dither_setDitherAlgorithm(JNIEnv *env, jclass cls, jlong ptr, jstring algorithm) { const char *algorithm_chars = (*env)->GetStringUTFChars(env, algorithm, 0); caca_set_dither_algorithm((caca_dither_t *)ptr, algorithm_chars); (*env)->ReleaseStringUTFChars(env, algorithm, algorithm_chars); }
static void check_events(struct vo *vo) { caca_event_t cev; while (caca_get_event(display, CACA_EVENT_ANY, &cev, 0)) { switch (cev.type) { case CACA_EVENT_RESIZE: caca_refresh_display(display); resize(); break; case CACA_EVENT_QUIT: mplayer_put_key(vo->key_fifo, KEY_CLOSE_WIN); break; case CACA_EVENT_MOUSE_MOTION: vo_mouse_movement(vo, cev.data.mouse.x, cev.data.mouse.y); break; case CACA_EVENT_MOUSE_PRESS: if (!vo_nomouse_input) mplayer_put_key(vo->key_fifo, (MOUSE_BTN0 + cev.data.mouse.button - 1) | MP_KEY_DOWN); break; case CACA_EVENT_MOUSE_RELEASE: if (!vo_nomouse_input) mplayer_put_key(vo->key_fifo, MOUSE_BTN0 + cev.data.mouse.button - 1); break; case CACA_EVENT_KEY_PRESS: { int key = cev.data.key.ch; int mpkey = lookup_keymap_table(keysym_map, key); const char *msg_name; if (mpkey) mplayer_put_key(vo->key_fifo, mpkey); else switch (key) { case 'd': case 'D': /* Toggle dithering algorithm */ set_next_str(caca_get_dither_algorithm_list(dither), &dither_algo, &msg_name); caca_set_dither_algorithm(dither, dither_algo); osdmessage(MESSAGE_DURATION, "Using %s", msg_name); break; case 'a': case 'A': /* Toggle antialiasing method */ set_next_str(caca_get_dither_antialias_list(dither), &dither_antialias, &msg_name); caca_set_dither_antialias(dither, dither_antialias); osdmessage(MESSAGE_DURATION, "Using %s", msg_name); break; case 'h': case 'H': /* Toggle charset method */ set_next_str(caca_get_dither_charset_list(dither), &dither_charset, &msg_name); caca_set_dither_charset(dither, dither_charset); osdmessage(MESSAGE_DURATION, "Using %s", msg_name); break; case 'c': case 'C': /* Toggle color method */ set_next_str(caca_get_dither_color_list(dither), &dither_color, &msg_name); caca_set_dither_color(dither, dither_color); osdmessage(MESSAGE_DURATION, "Using %s", msg_name); break; default: if (key <= 255) mplayer_put_key(vo->key_fifo, key); break; } } } } }
int cucul_set_dither_mode(cucul_dither_t *d, char const *s) { return caca_set_dither_algorithm(d, s); }
int main(int argc, char *argv[]) { /* libcaca/libcaca contexts */ caca_canvas_t *cv; caca_display_t *dp; caca_canvas_t *tex; /* cached canvas size */ int ww, wh, tw, th; /* logic */ int quit = 0; int update = 1; int px, py; float angle = 0; float square[6][2] = { {-SQUARE_SIZE, -SQUARE_SIZE}, {SQUARE_SIZE, -SQUARE_SIZE}, {SQUARE_SIZE, SQUARE_SIZE}, {-SQUARE_SIZE, SQUARE_SIZE}, }; float uv1[6] = { 0, 0, 1, 0, 1, 1 }; float uv2[6] = { 0, 0, 1, 1, 0, 1 }; float rotated[4][2]; int coords1[6], coords2[6]; /* Create displayed canvas */ cv = caca_create_canvas(0, 0); if (!cv) { fprintf(stderr, "%s: unable to initialise libcaca\n", argv[0]); return 1; } /* Create texture holding canvas */ tex = caca_create_canvas(16, 16); if (!tex) { fprintf(stderr, "%s: unable to initialise libcaca\n", argv[0]); return 1; } /* Open window */ dp = caca_create_display(cv); if (!dp) { fprintf(stderr, "%s: unable to initialise libcaca\n", argv[0]); return 1; } /* Set the window title */ caca_set_display_title(dp, "trifiller"); /* Frame duration */ caca_set_display_time(dp, 10000); /* Get displayed canvas size */ ww = caca_get_canvas_width(cv); wh = caca_get_canvas_height(cv); /* Texture size */ tw = caca_get_canvas_width(tex); th = caca_get_canvas_height(tex); /* Load texture if any */ if (argc == 2) { struct image *im = load_image(argv[1]); if (!im) { fprintf(stderr, "%s: unable to load image '%s'\n", argv[0], argv[1]); return 1; } caca_set_dither_algorithm(im->dither, caca_get_dither_algorithm_list(NULL)[4]); caca_dither_bitmap(tex, 0, 0, tw, th, im->dither, im->pixels); unload_image(im); } /* or generate one */ else { int i; for (i = 0; i < 16; i++) { caca_set_color_ansi(tex, (i + 1) % 0xF, i % 0xF); caca_put_str(tex, 0, i, "0123456789ABCDEF"); } } px = 0; py = 0; while (!quit) { caca_event_t ev; unsigned int const event_mask = CACA_EVENT_KEY_PRESS | CACA_EVENT_RESIZE | CACA_EVENT_QUIT; int event; if (update) event = caca_get_event(dp, event_mask, &ev, 0); else event = caca_get_event(dp, event_mask, &ev, -1); while (event) { 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; case CACA_KEY_UP: py--; break; case CACA_KEY_DOWN: py++; break; case CACA_KEY_LEFT: px--; break; case CACA_KEY_RIGHT: px++; break; case 'a': angle += 1.0f; break; case 's': angle -= 1.0f; break; } else if (caca_get_event_type(&ev) == CACA_EVENT_RESIZE) { caca_refresh_display(dp); ww = caca_get_event_resize_width(&ev); wh = caca_get_event_resize_height(&ev); update = 1; } else if (caca_get_event_type(&ev) & CACA_EVENT_QUIT) quit = 1; event = caca_get_event(dp, CACA_EVENT_KEY_PRESS, &ev, 0); } /* 2D Rotation around screen center */ int p; for (p = 0; p < 4; p++) { rotated[p][0] = square[p][0] * cos(angle * M_PI / 180.0f) - square[p][1] * sin(angle * M_PI / 180.0f); rotated[p][1] = square[p][0] * sin(angle * M_PI / 180.0f) + square[p][1] * cos(angle * M_PI / 180.0f); rotated[p][0] += ww / 2 + px; rotated[p][1] += wh / 2 + py; } angle += 1.0f; /* Reaarange coordinates to fit libcaca's format */ coords1[0] = rotated[0][0]; coords1[1] = rotated[0][1]; coords1[2] = rotated[1][0]; coords1[3] = rotated[1][1]; coords1[4] = rotated[2][0]; coords1[5] = rotated[2][1]; coords2[0] = rotated[0][0]; coords2[1] = rotated[0][1]; coords2[2] = rotated[2][0]; coords2[3] = rotated[2][1]; coords2[4] = rotated[3][0]; coords2[5] = rotated[3][1]; /* Display two triangles */ caca_fill_triangle_textured(cv, /* canvas */ coords1, /* triangle coordinates */ tex, /* texture canvas */ uv1); /* texture coordinates */ caca_fill_triangle_textured(cv, coords2, tex, uv2); /* Refresh display and clear for next frame */ caca_refresh_display(dp); caca_clear_canvas(cv); } caca_free_display(dp); caca_free_canvas(cv); caca_free_canvas(tex); return 0; }