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mpv/libvo/eosd_packer.h
Uoti Urpala fd52cb65f4 subs, vo: do sub bitmap change detection by comparing IDs
vo_vdpau and vo_gl cache the last subtitle bitmaps uploaded to video
card in case they stay the same over multiple frames. Detecting
whether the bitmaps have changed and should be re-uploaded was
somewhat fragile. Change the VO API to provide a bitmap ID which can
be compared with what the VO has to determine whether a new upload of
the bitmaps is needed.

Conflicts:
	libvo/vo_gl.c

Note: the changes for vo_gl.c were not merged. Instead, eosd_packer is
modified to use the new way of detecting EOSD changes. This takes care
of vo_gl, vo_gl3 and vo_direct3d, which all render EOSD. They don't
need to be updated in turn.
2012-09-18 21:04:46 +02:00

75 lines
2.4 KiB
C

/*
* This file is part of mplayer2.
*
* mplayer2 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.
*
* mplayer2 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 mplayer2; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPLAYER_EOSD_PACKER_H
#define MPLAYER_EOSD_PACKER_H
#include <inttypes.h>
#include <stdbool.h>
#include "sub/ass_mp.h"
#include "sub/dec_sub.h"
// Pool of surfaces
struct eosd_surface {
//void *native_surface;
int w;
int h;
};
struct eosd_rect {
int x0, y0, x1, y1;
};
// List of surfaces to be rendered
struct eosd_target {
struct eosd_rect source; // position in EOSD surface
struct eosd_rect dest; // position on screen
uint32_t color; // libass-style color of the image
// NOTE: This must not be accessed after you return from your VO's
// VOCTRL_DRAW_EOSD call - libass will free or reuse the associated
// memory. Feel free to set this to NULL to make erroneous accesses to
// this member fail early.
ASS_Image *ass_img;
};
struct eosd_packer {
struct eosd_surface surface;
struct eosd_target *targets;
int targets_count; // number of valid elements in targets
int targets_size; // number of allocated elements in targets
uint32_t max_surface_width;
uint32_t max_surface_height;
int *scratch;
int last_bitmap_id;
int last_bitmap_pos_id;
};
struct eosd_packer *eosd_packer_create(void *talloc_ctx);
void eosd_packer_reinit(struct eosd_packer *state, uint32_t max_width,
uint32_t max_height);
void eosd_packer_generate(struct eosd_packer *state, mp_eosd_images_t *imgs,
bool *out_need_reposition, bool *out_need_upload,
bool *out_need_reallocate);
bool eosd_packer_calculate_source_bb(struct eosd_packer *state,
struct eosd_rect *out_bb);
#endif /* MPLAYER_EOSD_PACKER_H */