summaryrefslogtreecommitdiffstats
path: root/sub/osd.h
blob: 17e8a02c08128572126a07c7fb61bbbaf4a3d6a5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
/*
 * This file is part of MPlayer.
 *
 * MPlayer 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.
 *
 * MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef MPLAYER_SUB_H
#define MPLAYER_SUB_H

#include <stddef.h>
#include <stdbool.h>
#include <stdint.h>

#include "options/m_option.h"

// NOTE: VOs must support at least SUBBITMAP_RGBA.
enum sub_bitmap_format {
    SUBBITMAP_EMPTY = 0,// no bitmaps; always has num_parts==0
    SUBBITMAP_LIBASS,   // A8, with a per-surface blend color (libass.color)
    SUBBITMAP_RGBA,     // B8G8R8A8 (MSB=A, LSB=B), scaled, premultiplied alpha
    SUBBITMAP_INDEXED,  // scaled, bitmap points to osd_bmp_indexed

    SUBBITMAP_COUNT
};

// For SUBBITMAP_INDEXED
struct osd_bmp_indexed {
    uint8_t *bitmap;
    // Each entry is like a pixel in SUBBITMAP_RGBA format, but using straight
    // alpha.
    uint32_t palette[256];
};

struct sub_bitmap {
    void *bitmap;
    int stride;
    // Note: not clipped, going outside the screen area is allowed
    //       (except for SUBBITMAP_LIBASS, which is always clipped)
    int w, h;
    int x, y;
    int dw, dh;

    union {
        struct {
            uint32_t color;
        } libass;
    };
};

struct sub_bitmaps {
    // For VO cache state (limited by MAX_OSD_PARTS)
    int render_index;

    enum sub_bitmap_format format;

    // If false, dw==w && dh==h.
    // SUBBITMAP_LIBASS is never scaled.
    bool scaled;

    struct sub_bitmap *parts;
    int num_parts;

    // Incremented on each change
    int bitmap_id, bitmap_pos_id;
};

struct mp_osd_res {
    int w, h; // screen dimensions, including black borders
    int mt, mb, ml, mr; // borders (top, bottom, left, right)
    double display_par;
};

enum mp_osdtype {
    OSDTYPE_SUB,
    OSDTYPE_SUB2,

    OSDTYPE_NAV_HIGHLIGHT,      // dvdnav fake highlights

    OSDTYPE_PROGBAR,
    OSDTYPE_OSD,

    OSDTYPE_EXTERNAL,
    OSDTYPE_EXTERNAL2,

    MAX_OSD_PARTS
};

#define OSD_CONV_CACHE_MAX 4

struct osd_object {
    int type; // OSDTYPE_*
    bool is_sub;

    bool force_redraw;

    // OSDTYPE_SUB
    struct dec_sub *dec_sub;
    double video_offset;
    bool render_bitmap_subs;
    char *sub_text;

    // caches for OSD conversion (internal to render_object())
    struct osd_conv_cache *cache[OSD_CONV_CACHE_MAX];
    struct sub_bitmaps cached;

    // VO cache state
    int vo_bitmap_id;
    int vo_bitmap_pos_id;
    struct mp_osd_res vo_res;

    // Internally used by osd_libass.c
    struct sub_bitmap *parts_cache;
    struct ass_track *osd_track;
    struct ass_renderer *osd_render;
    struct ass_library *osd_ass_library;
};

struct osd_state {
    struct osd_object *objs[MAX_OSD_PARTS];

    double vo_pts;

    bool render_subs_in_filter;

    struct mp_osd_res last_vo_res;

    bool want_redraw;

    // OSDTYPE_OSD
    char *osd_text;
    // OSDTYPE_PROGBAR
    int progbar_type;      // <0: disabled, 1-255: symbol, else: no symbol
    float progbar_value;   // range 0.0-1.0
    float *progbar_stops;  // used for chapter indicators (0.0-1.0 each)
    int progbar_num_stops;
    // OSDTYPE_EXTERNAL
    char *external;
    int external_res_x, external_res_y;
    // OSDTYPE_EXTERNAL2
    struct sub_bitmaps external2;
    // OSDTYPE_NAV_HIGHLIGHT
    void *highlight_priv;

    struct MPOpts *opts;
    struct mpv_global *global;
    struct mp_log *log;

    // Internal to sub.c
    struct mp_draw_sub_cache *draw_cache;
};

// Start of OSD symbols in osd_font.pfb
#define OSD_CODEPOINTS 0xE000

// OSD symbols. osd_font.pfb has them starting from codepoint OSD_CODEPOINTS.
// Symbols with a value >= 32 are normal unicode codepoints.
enum mp_osd_font_codepoints {
    OSD_PLAY = 0x01,
    OSD_PAUSE = 0x02,
    OSD_STOP = 0x03,
    OSD_REW = 0x04,
    OSD_FFW = 0x05,
    OSD_CLOCK = 0x06,
    OSD_CONTRAST = 0x07,
    OSD_SATURATION = 0x08,
    OSD_VOLUME = 0x09,
    OSD_BRIGHTNESS = 0x0A,
    OSD_HUE = 0x0B,
    OSD_BALANCE = 0x0C,
    OSD_PANSCAN = 0x50,

    OSD_PB_START = 0x10,
    OSD_PB_0 = 0x11,
    OSD_PB_END = 0x12,
    OSD_PB_1 = 0x13,
};

struct osd_style_opts {
    char *font;
    float font_size;
    struct m_color color;
    struct m_color border_color;
    struct m_color shadow_color;
    struct m_color back_color;
    float border_size;
    float shadow_offset;
    float spacing;
    int margin_x;
    int margin_y;
    float blur;
};

extern const struct m_sub_options osd_style_conf;

struct osd_state *osd_create(struct mpv_global *global);
void osd_set_text(struct osd_state *osd, const char *text);
void osd_set_sub(struct osd_state *osd, struct osd_object *obj, const char *text);
void osd_changed(struct osd_state *osd, int new_value);
void osd_changed_all(struct osd_state *osd);
void osd_free(struct osd_state *osd);

enum mp_osd_draw_flags {
    OSD_DRAW_SUB_FILTER = (1 << 0),
    OSD_DRAW_SUB_ONLY   = (1 << 1),
};

void osd_draw(struct osd_state *osd, struct mp_osd_res res,
              double video_pts, int draw_flags,
              const bool formats[SUBBITMAP_COUNT],
              void (*cb)(void *ctx, struct sub_bitmaps *imgs), void *cb_ctx);

struct mp_image;
bool osd_draw_on_image(struct osd_state *osd, struct mp_osd_res res,
                       double video_pts, int draw_flags, struct mp_image *dest);

struct mp_image_pool;
void osd_draw_on_image_p(struct osd_state *osd, struct mp_osd_res res,
                         double video_pts, int draw_flags,
                         struct mp_image_pool *pool, struct mp_image *dest);

void osd_object_get_scale_factor(struct osd_state *osd, struct osd_object *obj,
                                 double *sw, double *sh);

void osd_coords_to_video(struct osd_state *osd, int frame_w, int frame_h,
                         int *x, int *y);

void osd_rescale_bitmaps(struct sub_bitmaps *imgs, int frame_w, int frame_h,
                         struct mp_osd_res res, double compensate_par);

// defined in osd_libass.c and osd_dummy.c

void osd_object_get_bitmaps(struct osd_state *osd, struct osd_object *obj,
                            struct sub_bitmaps *out_imgs);
void osd_object_get_resolution(struct osd_state *osd, struct osd_object *obj,
                               int *out_w, int *out_h);
void osd_get_function_sym(char *buffer, size_t buffer_size, int osd_function);
void osd_init_backend(struct osd_state *osd);
void osd_destroy_backend(struct osd_state *osd);

// defined in player
void mp_nav_get_highlight(struct osd_state *osd, struct mp_osd_res res,
                          struct sub_bitmaps *out_imgs);

#endif /* MPLAYER_SUB_H */