diff options
Diffstat (limited to 'video/out/vo_caca.c')
| -rw-r--r-- | video/out/vo_caca.c | 314 |
1 files changed, 314 insertions, 0 deletions
diff --git a/video/out/vo_caca.c b/video/out/vo_caca.c new file mode 100644 index 0000000..0625de0 --- /dev/null +++ b/video/out/vo_caca.c @@ -0,0 +1,314 @@ +/* + * video output driver for libcaca + * + * by Pigeon <pigeon@pigeond.net> + * + * Some functions/codes/ideas are from x11 and aalib vo + * + * TODO: support draw_alpha? + * + * This file is part of mpv. + * + * mpv is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * mpv is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with mpv. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <sys/stat.h> +#include <unistd.h> +#include <string.h> +#include <time.h> +#include <errno.h> +#include <assert.h> +#include <caca.h> + +#include "config.h" +#include "vo.h" +#include "video/mp_image.h" + +#include "input/keycodes.h" +#include "input/input.h" +#include "common/msg.h" +#include "input/input.h" + +#include "config.h" +#if !HAVE_GPL +#error GPL only +#endif + +struct priv { + caca_canvas_t *canvas; + caca_display_t *display; + caca_dither_t *dither; + uint8_t *dither_buffer; + const char *dither_antialias; + const char *dither_charset; + const char *dither_color; + const char *dither_algo; + + /* image infos */ + int image_format; + int image_width; + int image_height; + + int screen_w, screen_h; +}; + +/* We want 24bpp always for now */ +static const unsigned int bpp = 24; +static const unsigned int depth = 3; +static const unsigned int rmask = 0xff0000; +static const unsigned int gmask = 0x00ff00; +static const unsigned int bmask = 0x0000ff; +static const unsigned int amask = 0; + +static int resize(struct vo *vo) +{ + struct priv *priv = vo->priv; + priv->screen_w = caca_get_canvas_width(priv->canvas); + priv->screen_h = caca_get_canvas_height(priv->canvas); + + caca_free_dither(priv->dither); + talloc_free(priv->dither_buffer); + + priv->dither = caca_create_dither(bpp, priv->image_width, priv->image_height, + depth * priv->image_width, + rmask, gmask, bmask, amask); + if (priv->dither == NULL) { + MP_FATAL(vo, "caca_create_dither failed!\n"); + return -1; + } + priv->dither_buffer = + talloc_array(NULL, uint8_t, depth * priv->image_width * priv->image_height); + + /* Default libcaca features */ + caca_set_dither_antialias(priv->dither, priv->dither_antialias); + caca_set_dither_charset(priv->dither, priv->dither_charset); + caca_set_dither_color(priv->dither, priv->dither_color); + caca_set_dither_algorithm(priv->dither, priv->dither_algo); + + return 0; +} + +static int reconfig(struct vo *vo, struct mp_image_params *params) +{ + struct priv *priv = vo->priv; + priv->image_height = params->h; + priv->image_width = params->w; + priv->image_format = params->imgfmt; + + return resize(vo); +} + +static void draw_frame(struct vo *vo, struct vo_frame *frame) +{ + struct priv *priv = vo->priv; + struct mp_image *mpi = frame->current; + if (!mpi) + return; + memcpy_pic(priv->dither_buffer, mpi->planes[0], priv->image_width * depth, priv->image_height, + priv->image_width * depth, mpi->stride[0]); + caca_dither_bitmap(priv->canvas, 0, 0, priv->screen_w, priv->screen_h, priv->dither, priv->dither_buffer); +} + +static void flip_page(struct vo *vo) +{ + struct priv *priv = vo->priv; + caca_refresh_display(priv->display); +} + +static void set_next_str(const char * const *list, const char **str, + const char **msg) +{ + int ind; + for (ind = 0; list[ind]; ind += 2) { + if (strcmp(list[ind], *str) == 0) { + if (list[ind + 2] == NULL) + ind = -2; + *str = list[ind + 2]; + *msg = list[ind + 3]; + return; + } + } + + *str = list[0]; + *msg = list[1]; +} + +static const struct mp_keymap keysym_map[] = { + {CACA_KEY_RETURN, MP_KEY_ENTER}, {CACA_KEY_ESCAPE, MP_KEY_ESC}, + {CACA_KEY_UP, MP_KEY_UP}, {CACA_KEY_DOWN, MP_KEY_DOWN}, + {CACA_KEY_LEFT, MP_KEY_LEFT}, {CACA_KEY_RIGHT, MP_KEY_RIGHT}, + {CACA_KEY_PAGEUP, MP_KEY_PAGE_UP}, {CACA_KEY_PAGEDOWN, MP_KEY_PAGE_DOWN}, + {CACA_KEY_HOME, MP_KEY_HOME}, {CACA_KEY_END, MP_KEY_END}, + {CACA_KEY_INSERT, MP_KEY_INSERT}, {CACA_KEY_DELETE, MP_KEY_DELETE}, + {CACA_KEY_BACKSPACE, MP_KEY_BACKSPACE}, {CACA_KEY_TAB, MP_KEY_TAB}, + {CACA_KEY_PAUSE, MP_KEY_PAUSE}, + {CACA_KEY_F1, MP_KEY_F+1}, {CACA_KEY_F2, MP_KEY_F+2}, + {CACA_KEY_F3, MP_KEY_F+3}, {CACA_KEY_F4, MP_KEY_F+4}, + {CACA_KEY_F5, MP_KEY_F+5}, {CACA_KEY_F6, MP_KEY_F+6}, + {CACA_KEY_F7, MP_KEY_F+7}, {CACA_KEY_F8, MP_KEY_F+8}, + {CACA_KEY_F9, MP_KEY_F+9}, {CACA_KEY_F10, MP_KEY_F+10}, + {CACA_KEY_F11, MP_KEY_F+11}, {CACA_KEY_F12, MP_KEY_F+12}, + {CACA_KEY_F13, MP_KEY_F+13}, {CACA_KEY_F14, MP_KEY_F+14}, + {CACA_KEY_F15, MP_KEY_F+15}, + {0, 0} +}; + +static void check_events(struct vo *vo) +{ + struct priv *priv = vo->priv; + + caca_event_t cev; + while (caca_get_event(priv->display, CACA_EVENT_ANY, &cev, 0)) { + + switch (cev.type) { + case CACA_EVENT_RESIZE: + caca_refresh_display(priv->display); + resize(vo); + break; + case CACA_EVENT_QUIT: + mp_input_put_key(vo->input_ctx, MP_KEY_CLOSE_WIN); + break; + case CACA_EVENT_MOUSE_MOTION: + mp_input_set_mouse_pos(vo->input_ctx, cev.data.mouse.x, cev.data.mouse.y); + break; + case CACA_EVENT_MOUSE_PRESS: + mp_input_put_key(vo->input_ctx, + (MP_MBTN_BASE + cev.data.mouse.button - 1) | MP_KEY_STATE_DOWN); + break; + case CACA_EVENT_MOUSE_RELEASE: + mp_input_put_key(vo->input_ctx, + (MP_MBTN_BASE + cev.data.mouse.button - 1) | MP_KEY_STATE_UP); + 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) + mp_input_put_key(vo->input_ctx, mpkey); + else + switch (key) { + case 'd': + case 'D': + /* Toggle dithering algorithm */ + set_next_str(caca_get_dither_algorithm_list(priv->dither), + &priv->dither_algo, &msg_name); + caca_set_dither_algorithm(priv->dither, priv->dither_algo); + break; + + case 'a': + case 'A': + /* Toggle antialiasing method */ + set_next_str(caca_get_dither_antialias_list(priv->dither), + &priv->dither_antialias, &msg_name); + caca_set_dither_antialias(priv->dither, priv->dither_antialias); + break; + + case 'h': + case 'H': + /* Toggle charset method */ + set_next_str(caca_get_dither_charset_list(priv->dither), + &priv->dither_charset, &msg_name); + caca_set_dither_charset(priv->dither, priv->dither_charset); + break; + + case 'c': + case 'C': + /* Toggle color method */ + set_next_str(caca_get_dither_color_list(priv->dither), + &priv->dither_color, &msg_name); + caca_set_dither_color(priv->dither, priv->dither_color); + break; + + default: + if (key <= 255) + mp_input_put_key(vo->input_ctx, key); + break; + } + } + } + } +} + +static void uninit(struct vo *vo) +{ + struct priv *priv = vo->priv; + caca_free_dither(priv->dither); + priv->dither = NULL; + talloc_free(priv->dither_buffer); + priv->dither_buffer = NULL; + caca_free_display(priv->display); + caca_free_canvas(priv->canvas); +} + +static int preinit(struct vo *vo) +{ + struct priv *priv = vo->priv; + + priv->dither_antialias = "default"; + priv->dither_charset = "default"; + priv->dither_color = "default"; + priv->dither_algo = "none"; + + priv->canvas = caca_create_canvas(0, 0); + if (priv->canvas == NULL) { + MP_ERR(vo, "failed to create canvas\n"); + return ENOSYS; + } + + priv->display = caca_create_display(priv->canvas); + + if (priv->display == NULL) { + MP_ERR(vo, "failed to create display\n"); + caca_free_canvas(priv->canvas); + return ENOSYS; + } + + return 0; +} + +static int query_format(struct vo *vo, int format) +{ + return format == IMGFMT_BGR24; +} + +static int control(struct vo *vo, uint32_t request, void *data) +{ + struct priv *priv = vo->priv; + switch (request) { + case VOCTRL_CHECK_EVENTS: + check_events(vo); + return VO_TRUE; + case VOCTRL_UPDATE_WINDOW_TITLE: + caca_set_display_title(priv->display, (char *)data); + return VO_TRUE; + } + return VO_NOTIMPL; +} + +const struct vo_driver video_out_caca = { + .name = "caca", + .description = "libcaca", + .preinit = preinit, + .query_format = query_format, + .reconfig = reconfig, + .control = control, + .draw_frame = draw_frame, + .flip_page = flip_page, + .uninit = uninit, + .priv_size = sizeof(struct priv), +}; |