mirror of
https://github.com/mpv-player/mpv
synced 2024-12-21 14:22:17 +00:00
51befc9deb
There was a somewhat obscure optimization in the OSD and subtitle rendering path: if only the position of the sub-images changed, and not the actual image data, uploading of the image data could be skipped. In theory, this could speed up things like scrolling subtitles. But it turns out that even in the rare cases subtitles have such scrolls or axis-aligned movement, modern libass rarely signals this kind of change. Possibly this is because of sub-pixel handling and such, which break this. As such, it's a worthless optimization and just introduces additional complexity and subtle bugs (especially in cases libass does the opposite: incorrectly signaling a position change only, which happened before). Remove this optimization, and rename bitmap_pos_id to change_id.
235 lines
6.7 KiB
C
235 lines
6.7 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPLAYER_SUB_H
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#define MPLAYER_SUB_H
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#include <stddef.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include "options/m_option.h"
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// NOTE: VOs must support at least SUBBITMAP_RGBA.
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enum sub_bitmap_format {
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SUBBITMAP_EMPTY = 0,// no bitmaps; always has num_parts==0
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SUBBITMAP_LIBASS, // A8, with a per-surface blend color (libass.color)
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SUBBITMAP_RGBA, // B8G8R8A8 (MSB=A, LSB=B), scaled, premultiplied alpha
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SUBBITMAP_INDEXED, // scaled, bitmap points to osd_bmp_indexed
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SUBBITMAP_COUNT
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};
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// For SUBBITMAP_INDEXED
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struct osd_bmp_indexed {
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uint8_t *bitmap;
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// Each entry is like a pixel in SUBBITMAP_RGBA format, but using straight
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// alpha.
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uint32_t palette[256];
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};
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struct sub_bitmap {
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void *bitmap;
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int stride;
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// Note: not clipped, going outside the screen area is allowed
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// (except for SUBBITMAP_LIBASS, which is always clipped)
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int w, h;
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int x, y;
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int dw, dh;
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struct {
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uint32_t color;
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} libass;
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};
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struct sub_bitmaps {
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// For VO cache state (limited by MAX_OSD_PARTS)
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int render_index;
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enum sub_bitmap_format format;
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// If false, dw==w && dh==h.
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// SUBBITMAP_LIBASS is never scaled.
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bool scaled;
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struct sub_bitmap *parts;
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int num_parts;
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int change_id; // Incremented on each change
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};
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struct mp_osd_res {
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int w, h; // screen dimensions, including black borders
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int mt, mb, ml, mr; // borders (top, bottom, left, right)
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double display_par;
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};
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enum mp_osdtype {
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OSDTYPE_SUB,
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OSDTYPE_SUB2,
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OSDTYPE_NAV_HIGHLIGHT, // dvdnav fake highlights
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OSDTYPE_PROGBAR,
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OSDTYPE_OSD,
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OSDTYPE_EXTERNAL,
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OSDTYPE_EXTERNAL2,
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MAX_OSD_PARTS
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};
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// Start of OSD symbols in osd_font.pfb
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#define OSD_CODEPOINTS 0xE000
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// OSD symbols. osd_font.pfb has them starting from codepoint OSD_CODEPOINTS.
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// Symbols with a value >= 32 are normal unicode codepoints.
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enum mp_osd_font_codepoints {
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OSD_PLAY = 0x01,
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OSD_PAUSE = 0x02,
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OSD_STOP = 0x03,
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OSD_REW = 0x04,
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OSD_FFW = 0x05,
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OSD_CLOCK = 0x06,
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OSD_CONTRAST = 0x07,
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OSD_SATURATION = 0x08,
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OSD_VOLUME = 0x09,
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OSD_BRIGHTNESS = 0x0A,
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OSD_HUE = 0x0B,
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OSD_BALANCE = 0x0C,
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OSD_PANSCAN = 0x50,
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OSD_PB_START = 0x10,
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OSD_PB_0 = 0x11,
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OSD_PB_END = 0x12,
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OSD_PB_1 = 0x13,
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};
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struct osd_style_opts {
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char *font;
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float font_size;
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struct m_color color;
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struct m_color border_color;
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struct m_color shadow_color;
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struct m_color back_color;
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float border_size;
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float shadow_offset;
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float spacing;
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int margin_x;
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int margin_y;
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int align_x;
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int align_y;
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float blur;
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};
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extern const struct m_sub_options osd_style_conf;
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extern const struct m_sub_options sub_style_conf;
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struct osd_state;
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struct osd_object;
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struct mpv_global;
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struct osd_state *osd_create(struct mpv_global *global);
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void osd_changed(struct osd_state *osd, int new_value);
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void osd_changed_all(struct osd_state *osd);
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void osd_free(struct osd_state *osd);
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bool osd_query_and_reset_want_redraw(struct osd_state *osd);
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void osd_set_text(struct osd_state *osd, int obj, const char *text);
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struct osd_sub_state {
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struct dec_sub *dec_sub;
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double video_offset;
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bool render_bitmap_subs;
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};
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void osd_set_sub(struct osd_state *osd, int obj, struct osd_sub_state *substate);
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bool osd_get_render_subs_in_filter(struct osd_state *osd);
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void osd_set_render_subs_in_filter(struct osd_state *osd, bool s);
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struct osd_progbar_state {
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int type; // <0: disabled, 1-255: symbol, else: no symbol
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float value; // range 0.0-1.0
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float *stops; // used for chapter indicators (0.0-1.0 each)
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int num_stops;
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};
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void osd_set_progbar(struct osd_state *osd, struct osd_progbar_state *s);
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void osd_set_external(struct osd_state *osd, int res_x, int res_y, char *text);
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void osd_set_external2(struct osd_state *osd, struct sub_bitmaps *imgs);
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void osd_set_nav_highlight(struct osd_state *osd, void *priv);
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enum mp_osd_draw_flags {
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OSD_DRAW_SUB_FILTER = (1 << 0),
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OSD_DRAW_SUB_ONLY = (1 << 1),
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};
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void osd_draw(struct osd_state *osd, struct mp_osd_res res,
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double video_pts, int draw_flags,
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const bool formats[SUBBITMAP_COUNT],
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void (*cb)(void *ctx, struct sub_bitmaps *imgs), void *cb_ctx);
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struct mp_image;
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bool osd_draw_on_image(struct osd_state *osd, struct mp_osd_res res,
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double video_pts, int draw_flags, struct mp_image *dest);
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struct mp_image_pool;
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void osd_draw_on_image_p(struct osd_state *osd, struct mp_osd_res res,
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double video_pts, int draw_flags,
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struct mp_image_pool *pool, struct mp_image *dest);
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struct mp_image_params;
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struct mp_osd_res osd_res_from_image_params(const struct mp_image_params *p);
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void osd_object_get_scale_factor(struct osd_state *osd, int obj,
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double *sw, double *sh);
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void osd_coords_to_video(struct osd_state *osd, int frame_w, int frame_h,
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int *x, int *y);
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struct mp_osd_res osd_get_vo_res(struct osd_state *osd, int obj);
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void osd_rescale_bitmaps(struct sub_bitmaps *imgs, int frame_w, int frame_h,
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struct mp_osd_res res, double compensate_par);
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// defined in osd_libass.c and osd_dummy.c
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// internal use only
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void osd_object_get_bitmaps(struct osd_state *osd, struct osd_object *obj,
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struct sub_bitmaps *out_imgs);
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void osd_init_backend(struct osd_state *osd);
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void osd_destroy_backend(struct osd_state *osd);
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// doesn't need locking
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void osd_get_function_sym(char *buffer, size_t buffer_size, int osd_function);
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extern const char *const osd_ass_0;
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extern const char *const osd_ass_1;
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// defined in backend, but locks if required
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void osd_object_get_resolution(struct osd_state *osd, int obj,
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int *out_w, int *out_h);
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// defined in player
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void mp_nav_get_highlight(void *priv, struct mp_osd_res res,
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struct sub_bitmaps *out_imgs);
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#endif /* MPLAYER_SUB_H */
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