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mpv/sub/ass_mp.h
wm4 c57304a591 sub: pack libass bitmaps directly in sd_ass.c and osd_libass.c
Change all producer of libass images to packing the bitmaps into a
single larger bitmap directly when they're output. This is supposed to
help working towards refcounted sub bitmaps.

This will reduce performance for VOs like vo_xv, but not for vo_opengl.
vo_opengl simply will pick up the pre-packed sub bitmaps, and skip
packing them again. vo_xv will copy and pack the sub bitmaps
unnecessarily - but if we want sub bitmap refcounting, they'd have to be
copied anyway.

The packing code cannot be removed yet from vo_opengl, because there are
certain corner cases that still produce unpackad other sub bitmaps.
Actual refcounting will also require more work.
2016-06-30 21:38:50 +02:00

60 lines
2.0 KiB
C

/*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
*
* 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/>.
*/
#ifndef MPLAYER_ASS_MP_H
#define MPLAYER_ASS_MP_H
#include <stdint.h>
#include <stdbool.h>
#include <ass/ass.h>
#include <ass/ass_types.h>
// This is probably arbitrary.
// sd_lavc_conv might indirectly still assume this PlayResY, though.
#define MP_ASS_FONT_PLAYRESY 288
#define MP_ASS_RGBA(r, g, b, a) \
(((unsigned)(r) << 24) | ((g) << 16) | ((b) << 8) | (0xFF - (a)))
// m_color argument
#define MP_ASS_COLOR(c) MP_ASS_RGBA((c).r, (c).g, (c).b, (c).a)
struct MPOpts;
struct mpv_global;
struct mp_osd_res;
struct osd_style_opts;
void mp_ass_flush_old_events(ASS_Track *track, long long ts);
void mp_ass_set_style(ASS_Style *style, double res_y,
const struct osd_style_opts *opts);
void mp_ass_configure_fonts(ASS_Renderer *priv, struct osd_style_opts *opts,
struct mpv_global *global, struct mp_log *log);
ASS_Library *mp_ass_init(struct mpv_global *global, struct mp_log *log);
struct sub_bitmaps;
struct mp_ass_packer;
struct mp_ass_packer *mp_ass_packer_alloc(void *ta_parent);
void mp_ass_packer_pack(struct mp_ass_packer *p, ASS_Image **image_lists,
int num_image_lists, bool changed,
int preferred_osd_format, struct sub_bitmaps *out);
#endif /* MPLAYER_ASS_MP_H */