mirror of https://github.com/odrling/Aegisub
Remove in-repository libass, depend on system library instead. Require minimum version 0.9.11 as that is what Ubuntu 11.04 ships.
Originally committed to SVN as r5548.
This commit is contained in:
parent
c59c4a03ba
commit
610ae5c4ad
|
@ -5,13 +5,8 @@ if HAVE_UNIVCHARDET
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univchardet = universalchardet
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endif
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if WITH_LIBASS
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libass = libass
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endif
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SUBDIRS = \
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$(univchardet) \
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$(libass) \
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src \
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automation \
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po \
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|
|
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@ -34,6 +34,7 @@ m4_define([pkgconfig_required_version], [0.20])
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m4_define([ruby_required_version], [1.8])
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m4_define([wx_required_version], [2.8.1])
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m4_define([ffms_required_version], [2.13.1])
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m4_define([libass_required_version], [0.9.11])
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#######
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|
@ -650,17 +651,10 @@ AC_SUBST(FFMS_CFLAGS)
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# Subtitle Provider
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###################
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AC_ARG_ENABLE(libass, [ --disable-libass disable libass support (default=enabled)],libass_disabled="(disabled)")
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AC_ARG_ENABLE(libass, [ --without-libass disable libass support (default=enabled)],libass_disabled="(disabled)")
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if test "$enable_libass" != "no"; then
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if test "$agi_cv_with_iconv" = "yes"; then
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LIBASS_LIBS="-L../libass -lass_aegisub"
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LIBASS_CFLAGS="-I../libass"
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with_libass="yes"
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else
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AC_MSG_WARN([libiconv is required for libass support.])
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with_libass="no"
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fi
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PKG_CHECK_MODULES(LIBASS, libass >= libass_required_version, [with_libass="yes"], [with_libass="no"])
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fi
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if test "$with_libass" = "yes" || test "$enable_libass" != "no"; then
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|
@ -1283,7 +1277,6 @@ src/libresrc/Makefile
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src/libauto3/Makefile
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src/libosxutil/Makefile
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universalchardet/Makefile
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libass/Makefile
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automation/Makefile
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po/Makefile.in
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desktop/Makefile
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@ -1364,7 +1357,6 @@ A/V Providers
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Subtitle Providers:
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libASS $with_libass $libass_disabled $libass_default
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(requires iconv and fontconfig)
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||||
Misc Packages
|
||||
Hunspell: $with_hunspell $with_hunspell_version $hunspell_disabled
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||||
|
|
|
@ -1,339 +0,0 @@
|
|||
GNU GENERAL PUBLIC LICENSE
|
||||
Version 2, June 1991
|
||||
|
||||
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
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||||
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
Everyone is permitted to copy and distribute verbatim copies
|
||||
of this license document, but changing it is not allowed.
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|
||||
Preamble
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|
||||
The licenses for most software are designed to take away your
|
||||
freedom to share and change it. By contrast, the GNU General Public
|
||||
License is intended to guarantee your freedom to share and change free
|
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software--to make sure the software is free for all its users. This
|
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General Public License applies to most of the Free Software
|
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Foundation's software and to any other program whose authors commit to
|
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using it. (Some other Free Software Foundation software is covered by
|
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the GNU Lesser General Public License instead.) You can apply it to
|
||||
your programs, too.
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|
||||
When we speak of free software, we are referring to freedom, not
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price. Our General Public Licenses are designed to make sure that you
|
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have the freedom to distribute copies of free software (and charge for
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this service if you wish), that you receive source code or can get it
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if you want it, that you can change the software or use pieces of it
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in new free programs; and that you know you can do these things.
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To protect your rights, we need to make restrictions that forbid
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anyone to deny you these rights or to ask you to surrender the rights.
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These restrictions translate to certain responsibilities for you if you
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For example, if you distribute copies of such a program, whether
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gratis or for a fee, you must give the recipients all the rights that
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We protect your rights with two steps: (1) copyright the software, and
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Finally, any free program is threatened constantly by software
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The precise terms and conditions for copying, distribution and
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GNU GENERAL PUBLIC LICENSE
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TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
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0. This License applies to any program or other work which contains
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Activities other than copying, distribution and modification are not
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Whether that is true depends on what the Program does.
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These requirements apply to the modified work as a whole. If
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Thus, it is not the intent of this section to claim rights or contest
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3. You may copy and distribute the Program (or a work based on it,
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a) Accompany it with the complete corresponding machine-readable
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b) Accompany it with a written offer, valid for at least three
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allowed only for noncommercial distribution and only if you
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The source code for a work means the preferred form of the work for
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If any portion of this section is held invalid or unenforceable under
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END OF TERMS AND CONDITIONS
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How to Apply These Terms to Your New Programs
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If you develop a new program, and you want it to be of the greatest
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|
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Gnomovision version 69, Copyright (C) year name of author
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|
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This is free software, and you are welcome to redistribute it
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|
||||
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
|
||||
`Gnomovision' (which makes passes at compilers) written by James Hacker.
|
||||
|
||||
<signature of Ty Coon>, 1 April 1989
|
||||
Ty Coon, President of Vice
|
||||
|
||||
This General Public License does not permit incorporating your program into
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||||
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||||
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|
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Public License instead of this License.
|
|
@ -1,23 +0,0 @@
|
|||
noinst_LIBRARIES = libass_aegisub.a
|
||||
|
||||
AM_CPPFLAGS = @CXXFLAGS_OSX@ @FREETYPE_CFLAGS@ -DCONFIG_ICONV -DCONFIG_FONTCONFIG @FONTCONFIG_CFLAGS@ @ICONV_CFLAGS@
|
||||
|
||||
if BUILD_DARWIN
|
||||
AM_CPPFLAGS += -DBUILD_DARWIN
|
||||
endif
|
||||
|
||||
libass_aegisub_a_SOURCES = \
|
||||
ass.c \
|
||||
ass_bitmap.c \
|
||||
ass_cache.c \
|
||||
ass_drawing.c \
|
||||
ass_font.c \
|
||||
ass_fontconfig.c \
|
||||
ass_library.c \
|
||||
ass_parse.c \
|
||||
ass_render.c \
|
||||
ass_strtod.c \
|
||||
ass_utils.c
|
||||
|
||||
libass_aegisub_a_SOURCES += \
|
||||
*.h
|
1246
aegisub/libass/ass.c
1246
aegisub/libass/ass.c
File diff suppressed because it is too large
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|
@ -1,374 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
|
||||
*
|
||||
* This file is part of libass.
|
||||
*
|
||||
* libass 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.
|
||||
*
|
||||
* libass 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 libass; if not, write to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#ifndef LIBASS_ASS_H
|
||||
#define LIBASS_ASS_H
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdarg.h>
|
||||
#include "ass_types.h"
|
||||
|
||||
#define LIBASS_VERSION 0x00908000
|
||||
|
||||
/*
|
||||
* A linked list of images produced by an ass renderer.
|
||||
*
|
||||
* These images have to be rendered in-order for the correct screen
|
||||
* composition. The libass renderer clips these bitmaps to the frame size.
|
||||
* w/h can be zero, in this case the bitmap should not be rendered at all.
|
||||
* The last bitmap row is not guaranteed to be padded up to stride size,
|
||||
* e.g. in the worst case a bitmap has the size stride * (h - 1) + w.
|
||||
*/
|
||||
typedef struct ass_image {
|
||||
int w, h; // Bitmap width/height
|
||||
int stride; // Bitmap stride
|
||||
unsigned char *bitmap; // 1bpp stride*h alpha buffer
|
||||
// Note: the last row may not be padded to
|
||||
// bitmap stride!
|
||||
uint32_t color; // Bitmap color and alpha, RGBA
|
||||
int dst_x, dst_y; // Bitmap placement inside the video frame
|
||||
|
||||
struct ass_image *next; // Next image, or NULL
|
||||
} ASS_Image;
|
||||
|
||||
/*
|
||||
* Hinting type. (see ass_set_hinting below)
|
||||
*
|
||||
* FreeType's native hinter is still buggy sometimes and it is recommended
|
||||
* to use the light autohinter, ASS_HINTING_LIGHT, instead. For best
|
||||
* compatibility with problematic fonts, disable hinting.
|
||||
*/
|
||||
typedef enum {
|
||||
ASS_HINTING_NONE = 0,
|
||||
ASS_HINTING_LIGHT,
|
||||
ASS_HINTING_NORMAL,
|
||||
ASS_HINTING_NATIVE
|
||||
} ASS_Hinting;
|
||||
|
||||
/**
|
||||
* \brief Initialize the library.
|
||||
* \return library handle or NULL if failed
|
||||
*/
|
||||
ASS_Library *ass_library_init(void);
|
||||
|
||||
/**
|
||||
* \brief Finalize the library
|
||||
* \param priv library handle
|
||||
*/
|
||||
void ass_library_done(ASS_Library *priv);
|
||||
|
||||
/**
|
||||
* \brief Set private font directory.
|
||||
* It is used for saving embedded fonts and also in font lookup.
|
||||
*
|
||||
* \param priv library handle
|
||||
* \param fonts_dir private directory for font extraction
|
||||
*/
|
||||
void ass_set_fonts_dir(ASS_Library *priv, const char *fonts_dir);
|
||||
|
||||
/**
|
||||
* \brief Whether fonts should be extracted from track data.
|
||||
* \param priv library handle
|
||||
* \param extract whether to extract fonts
|
||||
*/
|
||||
void ass_set_extract_fonts(ASS_Library *priv, int extract);
|
||||
|
||||
/**
|
||||
* \brief Register style overrides with a library instance.
|
||||
* The overrides should have the form [Style.]Param=Value, e.g.
|
||||
* SomeStyle.Font=Arial
|
||||
* ScaledBorderAndShadow=yes
|
||||
*
|
||||
* \param priv library handle
|
||||
* \param list NULL-terminated list of strings
|
||||
*/
|
||||
void ass_set_style_overrides(ASS_Library *priv, char **list);
|
||||
|
||||
/**
|
||||
* \brief Explicitly process style overrides for a track.
|
||||
* \param track track handle
|
||||
*/
|
||||
void ass_process_force_style(ASS_Track *track);
|
||||
|
||||
/**
|
||||
* \brief Register a callback for debug/info messages.
|
||||
* If a callback is registered, it is called for every message emitted by
|
||||
* libass. The callback receives a format string and a list of arguments,
|
||||
* to be used for the printf family of functions. Additionally, a log level
|
||||
* from 0 (FATAL errors) to 7 (verbose DEBUG) is passed. Usually, level 5
|
||||
* should be used by applications.
|
||||
* If no callback is set, all messages level < 5 are printed to stderr,
|
||||
* prefixed with [ass].
|
||||
*
|
||||
* \param priv library handle
|
||||
* \param msg_cb pointer to callback function
|
||||
* \param data additional data, will be passed to callback
|
||||
*/
|
||||
void ass_set_message_cb(ASS_Library *priv, void (*msg_cb)
|
||||
(int level, const char *fmt, va_list args, void *data),
|
||||
void *data);
|
||||
|
||||
/**
|
||||
* \brief Initialize the renderer.
|
||||
* \param priv library handle
|
||||
* \return renderer handle or NULL if failed
|
||||
*/
|
||||
ASS_Renderer *ass_renderer_init(ASS_Library *);
|
||||
|
||||
/**
|
||||
* \brief Finalize the renderer.
|
||||
* \param priv renderer handle
|
||||
*/
|
||||
void ass_renderer_done(ASS_Renderer *priv);
|
||||
|
||||
/**
|
||||
* \brief Set the frame size in pixels, including margins.
|
||||
* \param priv renderer handle
|
||||
* \param w width
|
||||
* \param h height
|
||||
*/
|
||||
void ass_set_frame_size(ASS_Renderer *priv, int w, int h);
|
||||
|
||||
/**
|
||||
* \brief Set frame margins. These values may be negative if pan-and-scan
|
||||
* is used.
|
||||
* \param priv renderer handle
|
||||
* \param t top margin
|
||||
* \param b bottom margin
|
||||
* \param l left margin
|
||||
* \param r right margin
|
||||
*/
|
||||
void ass_set_margins(ASS_Renderer *priv, int t, int b, int l, int r);
|
||||
|
||||
/**
|
||||
* \brief Whether margins should be used for placing regular events.
|
||||
* \param priv renderer handle
|
||||
* \param use whether to use the margins
|
||||
*/
|
||||
void ass_set_use_margins(ASS_Renderer *priv, int use);
|
||||
|
||||
/**
|
||||
* \brief Set aspect ratio parameters.
|
||||
* \param priv renderer handle
|
||||
* \param dar display aspect ratio (DAR), prescaled for output PAR
|
||||
* \param sar storage aspect ratio (SAR)
|
||||
*/
|
||||
void ass_set_aspect_ratio(ASS_Renderer *priv, double dar, double sar);
|
||||
|
||||
/**
|
||||
* \brief Set a fixed font scaling factor.
|
||||
* \param priv renderer handle
|
||||
* \param font_scale scaling factor, default is 1.0
|
||||
*/
|
||||
void ass_set_font_scale(ASS_Renderer *priv, double font_scale);
|
||||
|
||||
/**
|
||||
* \brief Set font hinting method.
|
||||
* \param priv renderer handle
|
||||
* \param ht hinting method
|
||||
*/
|
||||
void ass_set_hinting(ASS_Renderer *priv, ASS_Hinting ht);
|
||||
|
||||
/**
|
||||
* \brief Set line spacing. Will not be scaled with frame size.
|
||||
* \param priv renderer handle
|
||||
* \param line_spacing line spacing in pixels
|
||||
*/
|
||||
void ass_set_line_spacing(ASS_Renderer *priv, double line_spacing);
|
||||
|
||||
/**
|
||||
* \brief Set font lookup defaults.
|
||||
* \param default_font path to default font to use. Must be supplied if
|
||||
* fontconfig is disabled or unavailable.
|
||||
* \param default_family fallback font family for fontconfig, or NULL
|
||||
* \param fc whether to use fontconfig
|
||||
* \param config path to fontconfig configuration file, or NULL. Only relevant
|
||||
* if fontconfig is used.
|
||||
* \param update whether fontconfig cache should be built/updated now. Only
|
||||
* relevant if fontconfig is used.
|
||||
*/
|
||||
void ass_set_fonts(ASS_Renderer *priv, const char *default_font,
|
||||
const char *default_family, int fc, const char *config,
|
||||
int update);
|
||||
|
||||
/**
|
||||
* \brief Update/build font cache. This needs to be called if it was
|
||||
* disabled when ass_set_fonts was set.
|
||||
*
|
||||
* \param priv renderer handle
|
||||
* \return success
|
||||
*/
|
||||
int ass_fonts_update(ASS_Renderer *priv);
|
||||
|
||||
/**
|
||||
* \brief Set hard cache limits. Do not set, or set to zero, for reasonable
|
||||
* defaults.
|
||||
*
|
||||
* \param priv renderer handle
|
||||
* \param glyph_max maximum number of cached glyphs
|
||||
* \param bitmap_max_size maximum bitmap cache size (in MB)
|
||||
*/
|
||||
void ass_set_cache_limits(ASS_Renderer *priv, int glyph_max,
|
||||
int bitmap_max_size);
|
||||
|
||||
/**
|
||||
* \brief Render a frame, producing a list of ASS_Image.
|
||||
* \param priv renderer handle
|
||||
* \param track subtitle track
|
||||
* \param now video timestamp in milliseconds
|
||||
* \param detect_change will be set to 1 if a change occured compared
|
||||
* to the last invocation
|
||||
*/
|
||||
ASS_Image *ass_render_frame(ASS_Renderer *priv, ASS_Track *track,
|
||||
long long now, int *detect_change);
|
||||
|
||||
|
||||
/*
|
||||
* The following functions operate on track objects and do not need
|
||||
* an ass_renderer
|
||||
*/
|
||||
|
||||
/**
|
||||
* \brief Allocate a new empty track object.
|
||||
* \param library handle
|
||||
* \return pointer to empty track
|
||||
*/
|
||||
ASS_Track *ass_new_track(ASS_Library *);
|
||||
|
||||
/**
|
||||
* \brief Deallocate track and all its child objects (styles and events).
|
||||
* \param track track to deallocate
|
||||
*/
|
||||
void ass_free_track(ASS_Track *track);
|
||||
|
||||
/**
|
||||
* \brief Allocate new style.
|
||||
* \param track track
|
||||
* \return newly allocated style id
|
||||
*/
|
||||
int ass_alloc_style(ASS_Track *track);
|
||||
|
||||
/**
|
||||
* \brief Allocate new event.
|
||||
* \param track track
|
||||
* \return newly allocated event id
|
||||
*/
|
||||
int ass_alloc_event(ASS_Track *track);
|
||||
|
||||
/**
|
||||
* \brief Delete a style.
|
||||
* \param track track
|
||||
* \param sid style id
|
||||
* Deallocates style data. Does not modify track->n_styles.
|
||||
*/
|
||||
void ass_free_style(ASS_Track *track, int sid);
|
||||
|
||||
/**
|
||||
* \brief Delete an event.
|
||||
* \param track track
|
||||
* \param eid event id
|
||||
* Deallocates event data. Does not modify track->n_events.
|
||||
*/
|
||||
void ass_free_event(ASS_Track *track, int eid);
|
||||
|
||||
/**
|
||||
* \brief Parse a chunk of subtitle stream data.
|
||||
* \param track track
|
||||
* \param data string to parse
|
||||
* \param size length of data
|
||||
*/
|
||||
void ass_process_data(ASS_Track *track, char *data, int size);
|
||||
|
||||
/**
|
||||
* \brief Parse Codec Private section of subtitle stream.
|
||||
* \param track target track
|
||||
* \param data string to parse
|
||||
* \param size length of data
|
||||
*/
|
||||
void ass_process_codec_private(ASS_Track *track, char *data, int size);
|
||||
|
||||
/**
|
||||
* \brief Parse a chunk of subtitle stream data. In Matroska,
|
||||
* this contains exactly 1 event (or a commentary).
|
||||
* \param track track
|
||||
* \param data string to parse
|
||||
* \param size length of data
|
||||
* \param timecode starting time of the event (milliseconds)
|
||||
* \param duration duration of the event (milliseconds)
|
||||
*/
|
||||
void ass_process_chunk(ASS_Track *track, char *data, int size,
|
||||
long long timecode, long long duration);
|
||||
|
||||
/**
|
||||
* \brief Read subtitles from file.
|
||||
* \param library library handle
|
||||
* \param fname file name
|
||||
* \param codepage encoding (iconv format)
|
||||
* \return newly allocated track
|
||||
*/
|
||||
ASS_Track *ass_read_file(ASS_Library *library, char *fname,
|
||||
char *codepage);
|
||||
|
||||
/**
|
||||
* \brief Read subtitles from memory.
|
||||
* \param library library handle
|
||||
* \param buf pointer to subtitles text
|
||||
* \param bufsize size of buffer
|
||||
* \param codepage encoding (iconv format)
|
||||
* \return newly allocated track
|
||||
*/
|
||||
ASS_Track *ass_read_memory(ASS_Library *library, char *buf,
|
||||
size_t bufsize, char *codepage);
|
||||
/**
|
||||
* \brief Read styles from file into already initialized track.
|
||||
* \param fname file name
|
||||
* \param codepage encoding (iconv format)
|
||||
* \return 0 on success
|
||||
*/
|
||||
int ass_read_styles(ASS_Track *track, char *fname, char *codepage);
|
||||
|
||||
/**
|
||||
* \brief Add a memory font.
|
||||
* \param library library handle
|
||||
* \param name attachment name
|
||||
* \param data binary font data
|
||||
* \param data_size data size
|
||||
*/
|
||||
void ass_add_font(ASS_Library *library, char *name, char *data,
|
||||
int data_size);
|
||||
|
||||
/**
|
||||
* \brief Remove all fonts stored in an ass_library object.
|
||||
* \param library library handle
|
||||
*/
|
||||
void ass_clear_fonts(ASS_Library *library);
|
||||
|
||||
/**
|
||||
* \brief Calculates timeshift from now to the start of some other subtitle
|
||||
* event, depending on movement parameter.
|
||||
* \param track subtitle track
|
||||
* \param now current time in milliseconds
|
||||
* \param movement how many events to skip from the one currently displayed
|
||||
* +2 means "the one after the next", -1 means "previous"
|
||||
* \return timeshift in milliseconds
|
||||
*/
|
||||
long long ass_step_sub(ASS_Track *track, long long now, int movement);
|
||||
|
||||
#endif /* LIBASS_ASS_H */
|
|
@ -1,537 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
|
||||
*
|
||||
* This file is part of libass.
|
||||
*
|
||||
* libass 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.
|
||||
*
|
||||
* libass 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 libass; if not, write to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <math.h>
|
||||
#include <assert.h>
|
||||
#include <ft2build.h>
|
||||
#include FT_GLYPH_H
|
||||
|
||||
#include "ass_utils.h"
|
||||
#include "ass_bitmap.h"
|
||||
|
||||
struct ass_synth_priv {
|
||||
int tmp_w, tmp_h;
|
||||
unsigned short *tmp;
|
||||
|
||||
int g_r;
|
||||
int g_w;
|
||||
|
||||
unsigned *g;
|
||||
unsigned *gt2;
|
||||
|
||||
double radius;
|
||||
};
|
||||
|
||||
static const unsigned int maxcolor = 255;
|
||||
static const unsigned base = 256;
|
||||
|
||||
static int generate_tables(ASS_SynthPriv *priv, double radius)
|
||||
{
|
||||
double A = log(1.0 / base) / (radius * radius * 2);
|
||||
int mx, i;
|
||||
double volume_diff, volume_factor = 0;
|
||||
unsigned volume;
|
||||
|
||||
if (priv->radius == radius)
|
||||
return 0;
|
||||
else
|
||||
priv->radius = radius;
|
||||
|
||||
priv->g_r = ceil(radius);
|
||||
priv->g_w = 2 * priv->g_r + 1;
|
||||
|
||||
if (priv->g_r) {
|
||||
priv->g = realloc(priv->g, priv->g_w * sizeof(unsigned));
|
||||
priv->gt2 = realloc(priv->gt2, 256 * priv->g_w * sizeof(unsigned));
|
||||
if (priv->g == NULL || priv->gt2 == NULL) {
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
if (priv->g_r) {
|
||||
// gaussian curve with volume = 256
|
||||
for (volume_diff = 10000000; volume_diff > 0.0000001;
|
||||
volume_diff *= 0.5) {
|
||||
volume_factor += volume_diff;
|
||||
volume = 0;
|
||||
for (i = 0; i < priv->g_w; ++i) {
|
||||
priv->g[i] =
|
||||
(unsigned) (exp(A * (i - priv->g_r) * (i - priv->g_r)) *
|
||||
volume_factor + .5);
|
||||
volume += priv->g[i];
|
||||
}
|
||||
if (volume > 256)
|
||||
volume_factor -= volume_diff;
|
||||
}
|
||||
volume = 0;
|
||||
for (i = 0; i < priv->g_w; ++i) {
|
||||
priv->g[i] =
|
||||
(unsigned) (exp(A * (i - priv->g_r) * (i - priv->g_r)) *
|
||||
volume_factor + .5);
|
||||
volume += priv->g[i];
|
||||
}
|
||||
|
||||
// gauss table:
|
||||
for (mx = 0; mx < priv->g_w; mx++) {
|
||||
for (i = 0; i < 256; i++) {
|
||||
priv->gt2[mx + i * priv->g_w] = i * priv->g[mx];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void resize_tmp(ASS_SynthPriv *priv, int w, int h)
|
||||
{
|
||||
if (priv->tmp_w >= w && priv->tmp_h >= h)
|
||||
return;
|
||||
if (priv->tmp_w == 0)
|
||||
priv->tmp_w = 64;
|
||||
if (priv->tmp_h == 0)
|
||||
priv->tmp_h = 64;
|
||||
while (priv->tmp_w < w)
|
||||
priv->tmp_w *= 2;
|
||||
while (priv->tmp_h < h)
|
||||
priv->tmp_h *= 2;
|
||||
if (priv->tmp)
|
||||
free(priv->tmp);
|
||||
priv->tmp = malloc((priv->tmp_w + 1) * priv->tmp_h * sizeof(short));
|
||||
}
|
||||
|
||||
ASS_SynthPriv *ass_synth_init(double radius)
|
||||
{
|
||||
ASS_SynthPriv *priv = calloc(1, sizeof(ASS_SynthPriv));
|
||||
generate_tables(priv, radius);
|
||||
return priv;
|
||||
}
|
||||
|
||||
void ass_synth_done(ASS_SynthPriv *priv)
|
||||
{
|
||||
if (priv->tmp)
|
||||
free(priv->tmp);
|
||||
if (priv->g)
|
||||
free(priv->g);
|
||||
if (priv->gt2)
|
||||
free(priv->gt2);
|
||||
free(priv);
|
||||
}
|
||||
|
||||
static Bitmap *alloc_bitmap(int w, int h)
|
||||
{
|
||||
Bitmap *bm;
|
||||
bm = calloc(1, sizeof(Bitmap));
|
||||
bm->buffer = malloc(w * h);
|
||||
bm->w = w;
|
||||
bm->h = h;
|
||||
bm->left = bm->top = 0;
|
||||
return bm;
|
||||
}
|
||||
|
||||
void ass_free_bitmap(Bitmap *bm)
|
||||
{
|
||||
if (bm) {
|
||||
if (bm->buffer)
|
||||
free(bm->buffer);
|
||||
free(bm);
|
||||
}
|
||||
}
|
||||
|
||||
static Bitmap *copy_bitmap(const Bitmap *src)
|
||||
{
|
||||
Bitmap *dst = alloc_bitmap(src->w, src->h);
|
||||
dst->left = src->left;
|
||||
dst->top = src->top;
|
||||
memcpy(dst->buffer, src->buffer, src->w * src->h);
|
||||
return dst;
|
||||
}
|
||||
|
||||
static int check_glyph_area(ASS_Library *library, FT_Glyph glyph)
|
||||
{
|
||||
FT_BBox bbox;
|
||||
long long dx, dy;
|
||||
FT_Glyph_Get_CBox(glyph, FT_GLYPH_BBOX_TRUNCATE, &bbox);
|
||||
dx = bbox.xMax - bbox.xMin;
|
||||
dy = bbox.yMax - bbox.yMin;
|
||||
if (dx * dy > 8000000) {
|
||||
ass_msg(library, MSGL_WARN, "Glyph bounding box too large: %dx%dpx",
|
||||
(int) dx, (int) dy);
|
||||
return 1;
|
||||
} else
|
||||
return 0;
|
||||
}
|
||||
|
||||
static Bitmap *glyph_to_bitmap_internal(ASS_Library *library,
|
||||
FT_Glyph glyph, int bord)
|
||||
{
|
||||
FT_BitmapGlyph bg;
|
||||
FT_Bitmap *bit;
|
||||
Bitmap *bm;
|
||||
int w, h;
|
||||
unsigned char *src;
|
||||
unsigned char *dst;
|
||||
int i;
|
||||
int error;
|
||||
|
||||
if (check_glyph_area(library, glyph))
|
||||
return 0;
|
||||
error = FT_Glyph_To_Bitmap(&glyph, FT_RENDER_MODE_NORMAL, 0, 0);
|
||||
if (error) {
|
||||
ass_msg(library, MSGL_WARN, "FT_Glyph_To_Bitmap error %d",
|
||||
error);
|
||||
return 0;
|
||||
}
|
||||
|
||||
bg = (FT_BitmapGlyph) glyph;
|
||||
bit = &(bg->bitmap);
|
||||
if (bit->pixel_mode != FT_PIXEL_MODE_GRAY) {
|
||||
ass_msg(library, MSGL_WARN, "Unsupported pixel mode: %d",
|
||||
(int) (bit->pixel_mode));
|
||||
FT_Done_Glyph(glyph);
|
||||
return 0;
|
||||
}
|
||||
|
||||
w = bit->width;
|
||||
h = bit->rows;
|
||||
bm = alloc_bitmap(w + 2 * bord, h + 2 * bord);
|
||||
memset(bm->buffer, 0, bm->w * bm->h);
|
||||
bm->left = bg->left - bord;
|
||||
bm->top = -bg->top - bord;
|
||||
|
||||
src = bit->buffer;
|
||||
dst = bm->buffer + bord + bm->w * bord;
|
||||
for (i = 0; i < h; ++i) {
|
||||
memcpy(dst, src, w);
|
||||
src += bit->pitch;
|
||||
dst += bm->w;
|
||||
}
|
||||
|
||||
FT_Done_Glyph(glyph);
|
||||
return bm;
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief fix outline bitmap
|
||||
*
|
||||
* The glyph bitmap is subtracted from outline bitmap. This way looks much
|
||||
* better in some cases.
|
||||
*/
|
||||
static void fix_outline(Bitmap *bm_g, Bitmap *bm_o)
|
||||
{
|
||||
int x, y;
|
||||
const int l = bm_o->left > bm_g->left ? bm_o->left : bm_g->left;
|
||||
const int t = bm_o->top > bm_g->top ? bm_o->top : bm_g->top;
|
||||
const int r =
|
||||
bm_o->left + bm_o->w <
|
||||
bm_g->left + bm_g->w ? bm_o->left + bm_o->w : bm_g->left + bm_g->w;
|
||||
const int b =
|
||||
bm_o->top + bm_o->h <
|
||||
bm_g->top + bm_g->h ? bm_o->top + bm_o->h : bm_g->top + bm_g->h;
|
||||
|
||||
unsigned char *g =
|
||||
bm_g->buffer + (t - bm_g->top) * bm_g->w + (l - bm_g->left);
|
||||
unsigned char *o =
|
||||
bm_o->buffer + (t - bm_o->top) * bm_o->w + (l - bm_o->left);
|
||||
|
||||
for (y = 0; y < b - t; ++y) {
|
||||
for (x = 0; x < r - l; ++x) {
|
||||
unsigned char c_g, c_o;
|
||||
c_g = g[x];
|
||||
c_o = o[x];
|
||||
o[x] = (c_o > c_g) ? c_o - (c_g / 2) : 0;
|
||||
}
|
||||
g += bm_g->w;
|
||||
o += bm_o->w;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Shift a bitmap by the fraction of a pixel in x and y direction
|
||||
* expressed in 26.6 fixed point
|
||||
*/
|
||||
static void shift_bitmap(unsigned char *buf, int w, int h, int shift_x,
|
||||
int shift_y)
|
||||
{
|
||||
int x, y, b;
|
||||
|
||||
// Shift in x direction
|
||||
if (shift_x > 0) {
|
||||
for (y = 0; y < h; y++) {
|
||||
for (x = w - 1; x > 0; x--) {
|
||||
b = (buf[x + y * w - 1] * shift_x) >> 6;
|
||||
buf[x + y * w - 1] -= b;
|
||||
buf[x + y * w] += b;
|
||||
}
|
||||
}
|
||||
} else if (shift_x < 0) {
|
||||
shift_x = -shift_x;
|
||||
for (y = 0; y < h; y++) {
|
||||
for (x = 0; x < w - 1; x++) {
|
||||
b = (buf[x + y * w + 1] * shift_x) >> 6;
|
||||
buf[x + y * w + 1] -= b;
|
||||
buf[x + y * w] += b;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Shift in y direction
|
||||
if (shift_y > 0) {
|
||||
for (x = 0; x < w; x++) {
|
||||
for (y = h - 1; y > 0; y--) {
|
||||
b = (buf[x + (y - 1) * w] * shift_y) >> 6;
|
||||
buf[x + (y - 1) * w] -= b;
|
||||
buf[x + y * w] += b;
|
||||
}
|
||||
}
|
||||
} else if (shift_y < 0) {
|
||||
shift_y = -shift_y;
|
||||
for (x = 0; x < w; x++) {
|
||||
for (y = 0; y < h - 1; y++) {
|
||||
b = (buf[x + (y + 1) * w] * shift_y) >> 6;
|
||||
buf[x + (y + 1) * w] -= b;
|
||||
buf[x + y * w] += b;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Gaussian blur. An fast pure C implementation from MPlayer.
|
||||
*/
|
||||
static void ass_gauss_blur(unsigned char *buffer, unsigned short *tmp2,
|
||||
int width, int height, int stride, int *m2,
|
||||
int r, int mwidth)
|
||||
{
|
||||
|
||||
int x, y;
|
||||
|
||||
unsigned char *s = buffer;
|
||||
unsigned short *t = tmp2 + 1;
|
||||
for (y = 0; y < height; y++) {
|
||||
memset(t - 1, 0, (width + 1) * sizeof(short));
|
||||
|
||||
for (x = 0; x < r; x++) {
|
||||
const int src = s[x];
|
||||
if (src) {
|
||||
register unsigned short *dstp = t + x - r;
|
||||
int mx;
|
||||
unsigned *m3 = (unsigned *) (m2 + src * mwidth);
|
||||
for (mx = r - x; mx < mwidth; mx++) {
|
||||
dstp[mx] += m3[mx];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (; x < width - r; x++) {
|
||||
const int src = s[x];
|
||||
if (src) {
|
||||
register unsigned short *dstp = t + x - r;
|
||||
int mx;
|
||||
unsigned *m3 = (unsigned *) (m2 + src * mwidth);
|
||||
for (mx = 0; mx < mwidth; mx++) {
|
||||
dstp[mx] += m3[mx];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
for (; x < width; x++) {
|
||||
const int src = s[x];
|
||||
if (src) {
|
||||
register unsigned short *dstp = t + x - r;
|
||||
int mx;
|
||||
const int x2 = r + width - x;
|
||||
unsigned *m3 = (unsigned *) (m2 + src * mwidth);
|
||||
for (mx = 0; mx < x2; mx++) {
|
||||
dstp[mx] += m3[mx];
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
s += stride;
|
||||
t += width + 1;
|
||||
}
|
||||
|
||||
t = tmp2;
|
||||
for (x = 0; x < width; x++) {
|
||||
for (y = 0; y < r; y++) {
|
||||
unsigned short *srcp = t + y * (width + 1) + 1;
|
||||
int src = *srcp;
|
||||
if (src) {
|
||||
register unsigned short *dstp = srcp - 1 + width + 1;
|
||||
const int src2 = (src + 128) >> 8;
|
||||
unsigned *m3 = (unsigned *) (m2 + src2 * mwidth);
|
||||
|
||||
int mx;
|
||||
*srcp = 128;
|
||||
for (mx = r - 1; mx < mwidth; mx++) {
|
||||
*dstp += m3[mx];
|
||||
dstp += width + 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
for (; y < height - r; y++) {
|
||||
unsigned short *srcp = t + y * (width + 1) + 1;
|
||||
int src = *srcp;
|
||||
if (src) {
|
||||
register unsigned short *dstp = srcp - 1 - r * (width + 1);
|
||||
const int src2 = (src + 128) >> 8;
|
||||
unsigned *m3 = (unsigned *) (m2 + src2 * mwidth);
|
||||
|
||||
int mx;
|
||||
*srcp = 128;
|
||||
for (mx = 0; mx < mwidth; mx++) {
|
||||
*dstp += m3[mx];
|
||||
dstp += width + 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
for (; y < height; y++) {
|
||||
unsigned short *srcp = t + y * (width + 1) + 1;
|
||||
int src = *srcp;
|
||||
if (src) {
|
||||
const int y2 = r + height - y;
|
||||
register unsigned short *dstp = srcp - 1 - r * (width + 1);
|
||||
const int src2 = (src + 128) >> 8;
|
||||
unsigned *m3 = (unsigned *) (m2 + src2 * mwidth);
|
||||
|
||||
int mx;
|
||||
*srcp = 128;
|
||||
for (mx = 0; mx < y2; mx++) {
|
||||
*dstp += m3[mx];
|
||||
dstp += width + 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
t++;
|
||||
}
|
||||
|
||||
t = tmp2;
|
||||
s = buffer;
|
||||
for (y = 0; y < height; y++) {
|
||||
for (x = 0; x < width; x++) {
|
||||
s[x] = t[x] >> 8;
|
||||
}
|
||||
s += stride;
|
||||
t += width + 1;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Blur with [[1,2,1]. [2,4,2], [1,2,1]] kernel
|
||||
* This blur is the same as the one employed by vsfilter.
|
||||
*/
|
||||
static void be_blur(unsigned char *buf, int w, int h)
|
||||
{
|
||||
unsigned int x, y;
|
||||
unsigned int old_sum, new_sum;
|
||||
|
||||
for (y = 0; y < h; y++) {
|
||||
old_sum = 2 * buf[y * w];
|
||||
for (x = 0; x < w - 1; x++) {
|
||||
new_sum = buf[y * w + x] + buf[y * w + x + 1];
|
||||
buf[y * w + x] = (old_sum + new_sum) >> 2;
|
||||
old_sum = new_sum;
|
||||
}
|
||||
}
|
||||
|
||||
for (x = 0; x < w; x++) {
|
||||
old_sum = 2 * buf[x];
|
||||
for (y = 0; y < h - 1; y++) {
|
||||
new_sum = buf[y * w + x] + buf[(y + 1) * w + x];
|
||||
buf[y * w + x] = (old_sum + new_sum) >> 2;
|
||||
old_sum = new_sum;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
int glyph_to_bitmap(ASS_Library *library, ASS_SynthPriv *priv_blur,
|
||||
FT_Glyph glyph, FT_Glyph outline_glyph,
|
||||
Bitmap **bm_g, Bitmap **bm_o, Bitmap **bm_s,
|
||||
int be, double blur_radius, FT_Vector shadow_offset,
|
||||
int border_style)
|
||||
{
|
||||
blur_radius *= 2;
|
||||
int bbord = be > 0 ? sqrt(2 * be) : 0;
|
||||
int gbord = blur_radius > 0.0 ? blur_radius + 1 : 0;
|
||||
int bord = FFMAX(bbord, gbord);
|
||||
if (bord == 0 && (shadow_offset.x || shadow_offset.y))
|
||||
bord = 1;
|
||||
|
||||
assert(bm_g && bm_o && bm_s);
|
||||
|
||||
*bm_g = *bm_o = *bm_s = 0;
|
||||
|
||||
if (glyph)
|
||||
*bm_g = glyph_to_bitmap_internal(library, glyph, bord);
|
||||
if (!*bm_g)
|
||||
return 1;
|
||||
|
||||
if (outline_glyph) {
|
||||
*bm_o = glyph_to_bitmap_internal(library, outline_glyph, bord);
|
||||
if (!*bm_o) {
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
// Apply box blur (multiple passes, if requested)
|
||||
while (be--) {
|
||||
if (*bm_o)
|
||||
be_blur((*bm_o)->buffer, (*bm_o)->w, (*bm_o)->h);
|
||||
else
|
||||
be_blur((*bm_g)->buffer, (*bm_g)->w, (*bm_g)->h);
|
||||
}
|
||||
|
||||
// Apply gaussian blur
|
||||
if (blur_radius > 0.0) {
|
||||
if (*bm_o)
|
||||
resize_tmp(priv_blur, (*bm_o)->w, (*bm_o)->h);
|
||||
else
|
||||
resize_tmp(priv_blur, (*bm_g)->w, (*bm_g)->h);
|
||||
generate_tables(priv_blur, blur_radius);
|
||||
if (*bm_o)
|
||||
ass_gauss_blur((*bm_o)->buffer, priv_blur->tmp,
|
||||
(*bm_o)->w, (*bm_o)->h, (*bm_o)->w,
|
||||
(int *) priv_blur->gt2, priv_blur->g_r,
|
||||
priv_blur->g_w);
|
||||
else
|
||||
ass_gauss_blur((*bm_g)->buffer, priv_blur->tmp,
|
||||
(*bm_g)->w, (*bm_g)->h, (*bm_g)->w,
|
||||
(int *) priv_blur->gt2, priv_blur->g_r,
|
||||
priv_blur->g_w);
|
||||
}
|
||||
|
||||
// Create shadow and fix outline as needed
|
||||
if (*bm_o && border_style != 3) {
|
||||
*bm_s = copy_bitmap(*bm_o);
|
||||
fix_outline(*bm_g, *bm_o);
|
||||
} else if (*bm_o) {
|
||||
*bm_s = copy_bitmap(*bm_o);
|
||||
} else
|
||||
*bm_s = copy_bitmap(*bm_g);
|
||||
|
||||
assert(bm_s);
|
||||
|
||||
shift_bitmap((*bm_s)->buffer, (*bm_s)->w,(*bm_s)->h,
|
||||
shadow_offset.x, shadow_offset.y);
|
||||
|
||||
return 0;
|
||||
}
|
|
@ -1,57 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
|
||||
*
|
||||
* This file is part of libass.
|
||||
*
|
||||
* libass 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.
|
||||
*
|
||||
* libass 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 libass; if not, write to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#ifndef LIBASS_BITMAP_H
|
||||
#define LIBASS_BITMAP_H
|
||||
|
||||
#include <ft2build.h>
|
||||
#include FT_GLYPH_H
|
||||
|
||||
#include "ass.h"
|
||||
|
||||
typedef struct ass_synth_priv ASS_SynthPriv;
|
||||
|
||||
ASS_SynthPriv *ass_synth_init(double);
|
||||
void ass_synth_done(ASS_SynthPriv *priv);
|
||||
|
||||
typedef struct {
|
||||
int left, top;
|
||||
int w, h; // width, height
|
||||
unsigned char *buffer; // w x h buffer
|
||||
} Bitmap;
|
||||
|
||||
/**
|
||||
* \brief perform glyph rendering
|
||||
* \param glyph original glyph
|
||||
* \param outline_glyph "border" glyph, produced from original by FreeType's glyph stroker
|
||||
* \param bm_g out: pointer to the bitmap of original glyph is returned here
|
||||
* \param bm_o out: pointer to the bitmap of outline (border) glyph is returned here
|
||||
* \param bm_g out: pointer to the bitmap of glyph shadow is returned here
|
||||
* \param be 1 = produces blurred bitmaps, 0 = normal bitmaps
|
||||
*/
|
||||
int glyph_to_bitmap(ASS_Library *library, ASS_SynthPriv *priv_blur,
|
||||
FT_Glyph glyph, FT_Glyph outline_glyph,
|
||||
Bitmap **bm_g, Bitmap **bm_o, Bitmap **bm_s,
|
||||
int be, double blur_radius, FT_Vector shadow_offset,
|
||||
int border_style);
|
||||
|
||||
void ass_free_bitmap(Bitmap *bm);
|
||||
|
||||
#endif /* LIBASS_BITMAP_H */
|
|
@ -1,380 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
|
||||
*
|
||||
* This file is part of libass.
|
||||
*
|
||||
* libass 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.
|
||||
*
|
||||
* libass 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 libass; if not, write to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include <inttypes.h>
|
||||
#include <ft2build.h>
|
||||
#include FT_FREETYPE_H
|
||||
#include FT_GLYPH_H
|
||||
|
||||
#include <assert.h>
|
||||
|
||||
#include "ass_utils.h"
|
||||
#include "ass.h"
|
||||
#include "ass_fontconfig.h"
|
||||
#include "ass_font.h"
|
||||
#include "ass_bitmap.h"
|
||||
#include "ass_cache.h"
|
||||
|
||||
static unsigned hashmap_hash(void *buf, size_t len)
|
||||
{
|
||||
return fnv_32a_buf(buf, len, FNV1_32A_INIT);
|
||||
}
|
||||
|
||||
static int hashmap_key_compare(void *a, void *b, size_t size)
|
||||
{
|
||||
return memcmp(a, b, size) == 0;
|
||||
}
|
||||
|
||||
static void hashmap_item_dtor(void *key, size_t key_size, void *value,
|
||||
size_t value_size)
|
||||
{
|
||||
free(key);
|
||||
free(value);
|
||||
}
|
||||
|
||||
Hashmap *hashmap_init(ASS_Library *library, size_t key_size,
|
||||
size_t value_size, int nbuckets,
|
||||
HashmapItemDtor item_dtor,
|
||||
HashmapKeyCompare key_compare,
|
||||
HashmapHash hash)
|
||||
{
|
||||
Hashmap *map = calloc(1, sizeof(Hashmap));
|
||||
map->library = library;
|
||||
map->nbuckets = nbuckets;
|
||||
map->key_size = key_size;
|
||||
map->value_size = value_size;
|
||||
map->root = calloc(nbuckets, sizeof(hashmap_item_p));
|
||||
map->item_dtor = item_dtor ? item_dtor : hashmap_item_dtor;
|
||||
map->key_compare = key_compare ? key_compare : hashmap_key_compare;
|
||||
map->hash = hash ? hash : hashmap_hash;
|
||||
return map;
|
||||
}
|
||||
|
||||
void hashmap_done(Hashmap *map)
|
||||
{
|
||||
int i;
|
||||
// print stats
|
||||
if (map->count > 0 || map->hit_count + map->miss_count > 0)
|
||||
ass_msg(map->library, MSGL_V,
|
||||
"cache statistics: \n total accesses: %d\n hits: %d\n "
|
||||
"misses: %d\n object count: %d",
|
||||
map->hit_count + map->miss_count, map->hit_count,
|
||||
map->miss_count, map->count);
|
||||
|
||||
for (i = 0; i < map->nbuckets; ++i) {
|
||||
HashmapItem *item = map->root[i];
|
||||
while (item) {
|
||||
HashmapItem *next = item->next;
|
||||
map->item_dtor(item->key, map->key_size, item->value,
|
||||
map->value_size);
|
||||
free(item);
|
||||
item = next;
|
||||
}
|
||||
}
|
||||
free(map->root);
|
||||
free(map);
|
||||
}
|
||||
|
||||
// does nothing if key already exists
|
||||
void *hashmap_insert(Hashmap *map, void *key, void *value)
|
||||
{
|
||||
unsigned hash = map->hash(key, map->key_size);
|
||||
HashmapItem **next = map->root + (hash % map->nbuckets);
|
||||
while (*next) {
|
||||
if (map->key_compare(key, (*next)->key, map->key_size))
|
||||
return (*next)->value;
|
||||
next = &((*next)->next);
|
||||
assert(next);
|
||||
}
|
||||
(*next) = malloc(sizeof(HashmapItem));
|
||||
(*next)->key = malloc(map->key_size);
|
||||
(*next)->value = malloc(map->value_size);
|
||||
memcpy((*next)->key, key, map->key_size);
|
||||
memcpy((*next)->value, value, map->value_size);
|
||||
(*next)->next = 0;
|
||||
|
||||
map->count++;
|
||||
return (*next)->value;
|
||||
}
|
||||
|
||||
void *hashmap_find(Hashmap *map, void *key)
|
||||
{
|
||||
unsigned hash = map->hash(key, map->key_size);
|
||||
HashmapItem *item = map->root[hash % map->nbuckets];
|
||||
while (item) {
|
||||
if (map->key_compare(key, item->key, map->key_size)) {
|
||||
map->hit_count++;
|
||||
return item->value;
|
||||
}
|
||||
item = item->next;
|
||||
}
|
||||
map->miss_count++;
|
||||
return 0;
|
||||
}
|
||||
|
||||
//---------------------------------
|
||||
// font cache
|
||||
|
||||
static unsigned font_desc_hash(void *buf, size_t len)
|
||||
{
|
||||
ASS_FontDesc *desc = buf;
|
||||
unsigned hval;
|
||||
hval = fnv_32a_str(desc->family, FNV1_32A_INIT);
|
||||
hval = fnv_32a_buf(&desc->bold, sizeof(desc->bold), hval);
|
||||
hval = fnv_32a_buf(&desc->italic, sizeof(desc->italic), hval);
|
||||
return hval;
|
||||
}
|
||||
|
||||
static int font_compare(void *key1, void *key2, size_t key_size)
|
||||
{
|
||||
ASS_FontDesc *a = key1;
|
||||
ASS_FontDesc *b = key2;
|
||||
if (strcmp(a->family, b->family) != 0)
|
||||
return 0;
|
||||
if (a->bold != b->bold)
|
||||
return 0;
|
||||
if (a->italic != b->italic)
|
||||
return 0;
|
||||
if (a->treat_family_as_pattern != b->treat_family_as_pattern)
|
||||
return 0;
|
||||
return 1;
|
||||
}
|
||||
|
||||
static void font_hash_dtor(void *key, size_t key_size, void *value,
|
||||
size_t value_size)
|
||||
{
|
||||
ass_font_free(value);
|
||||
free(key);
|
||||
}
|
||||
|
||||
ASS_Font *ass_font_cache_find(Hashmap *font_cache,
|
||||
ASS_FontDesc *desc)
|
||||
{
|
||||
return hashmap_find(font_cache, desc);
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Add a face struct to cache.
|
||||
* \param font font struct
|
||||
*/
|
||||
void *ass_font_cache_add(Hashmap *font_cache, ASS_Font *font)
|
||||
{
|
||||
return hashmap_insert(font_cache, &(font->desc), font);
|
||||
}
|
||||
|
||||
Hashmap *ass_font_cache_init(ASS_Library *library)
|
||||
{
|
||||
Hashmap *font_cache;
|
||||
font_cache = hashmap_init(library, sizeof(ASS_FontDesc),
|
||||
sizeof(ASS_Font),
|
||||
1000,
|
||||
font_hash_dtor, font_compare, font_desc_hash);
|
||||
return font_cache;
|
||||
}
|
||||
|
||||
void ass_font_cache_done(Hashmap *font_cache)
|
||||
{
|
||||
hashmap_done(font_cache);
|
||||
}
|
||||
|
||||
|
||||
// Create hash/compare functions for bitmap and glyph
|
||||
#define CREATE_HASH_FUNCTIONS
|
||||
#include "ass_cache_template.h"
|
||||
#define CREATE_COMPARISON_FUNCTIONS
|
||||
#include "ass_cache_template.h"
|
||||
|
||||
//---------------------------------
|
||||
// bitmap cache
|
||||
|
||||
static void bitmap_hash_dtor(void *key, size_t key_size, void *value,
|
||||
size_t value_size)
|
||||
{
|
||||
BitmapHashValue *v = value;
|
||||
if (v->bm)
|
||||
ass_free_bitmap(v->bm);
|
||||
if (v->bm_o)
|
||||
ass_free_bitmap(v->bm_o);
|
||||
if (v->bm_s)
|
||||
ass_free_bitmap(v->bm_s);
|
||||
free(key);
|
||||
free(value);
|
||||
}
|
||||
|
||||
void *cache_add_bitmap(Hashmap *bitmap_cache, BitmapHashKey *key,
|
||||
BitmapHashValue *val)
|
||||
{
|
||||
// Note: this is only an approximation
|
||||
if (val->bm_o)
|
||||
bitmap_cache->cache_size += val->bm_o->w * val->bm_o->h * 3;
|
||||
else if (val->bm)
|
||||
bitmap_cache->cache_size += val->bm->w * val->bm->h * 3;
|
||||
|
||||
return hashmap_insert(bitmap_cache, key, val);
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Get a bitmap from bitmap cache.
|
||||
* \param key hash key
|
||||
* \return requested hash val or 0 if not found
|
||||
*/
|
||||
BitmapHashValue *cache_find_bitmap(Hashmap *bitmap_cache,
|
||||
BitmapHashKey *key)
|
||||
{
|
||||
return hashmap_find(bitmap_cache, key);
|
||||
}
|
||||
|
||||
Hashmap *ass_bitmap_cache_init(ASS_Library *library)
|
||||
{
|
||||
Hashmap *bitmap_cache;
|
||||
bitmap_cache = hashmap_init(library,
|
||||
sizeof(BitmapHashKey),
|
||||
sizeof(BitmapHashValue),
|
||||
0xFFFF + 13,
|
||||
bitmap_hash_dtor, bitmap_compare,
|
||||
bitmap_hash);
|
||||
return bitmap_cache;
|
||||
}
|
||||
|
||||
void ass_bitmap_cache_done(Hashmap *bitmap_cache)
|
||||
{
|
||||
hashmap_done(bitmap_cache);
|
||||
}
|
||||
|
||||
Hashmap *ass_bitmap_cache_reset(Hashmap *bitmap_cache)
|
||||
{
|
||||
ASS_Library *lib = bitmap_cache->library;
|
||||
|
||||
ass_bitmap_cache_done(bitmap_cache);
|
||||
return ass_bitmap_cache_init(lib);
|
||||
}
|
||||
|
||||
//---------------------------------
|
||||
// glyph cache
|
||||
|
||||
static void glyph_hash_dtor(void *key, size_t key_size, void *value,
|
||||
size_t value_size)
|
||||
{
|
||||
GlyphHashValue *v = value;
|
||||
if (v->glyph)
|
||||
FT_Done_Glyph(v->glyph);
|
||||
if (v->outline_glyph)
|
||||
FT_Done_Glyph(v->outline_glyph);
|
||||
free(key);
|
||||
free(value);
|
||||
}
|
||||
|
||||
void *cache_add_glyph(Hashmap *glyph_cache, GlyphHashKey *key,
|
||||
GlyphHashValue *val)
|
||||
{
|
||||
return hashmap_insert(glyph_cache, key, val);
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Get a glyph from glyph cache.
|
||||
* \param key hash key
|
||||
* \return requested hash val or 0 if not found
|
||||
*/
|
||||
GlyphHashValue *cache_find_glyph(Hashmap *glyph_cache,
|
||||
GlyphHashKey *key)
|
||||
{
|
||||
return hashmap_find(glyph_cache, key);
|
||||
}
|
||||
|
||||
Hashmap *ass_glyph_cache_init(ASS_Library *library)
|
||||
{
|
||||
Hashmap *glyph_cache;
|
||||
glyph_cache = hashmap_init(library, sizeof(GlyphHashKey),
|
||||
sizeof(GlyphHashValue),
|
||||
0xFFFF + 13,
|
||||
glyph_hash_dtor, glyph_compare, glyph_hash);
|
||||
return glyph_cache;
|
||||
}
|
||||
|
||||
void ass_glyph_cache_done(Hashmap *glyph_cache)
|
||||
{
|
||||
hashmap_done(glyph_cache);
|
||||
}
|
||||
|
||||
Hashmap *ass_glyph_cache_reset(Hashmap *glyph_cache)
|
||||
{
|
||||
ASS_Library *lib = glyph_cache->library;
|
||||
|
||||
ass_glyph_cache_done(glyph_cache);
|
||||
return ass_glyph_cache_init(lib);
|
||||
}
|
||||
|
||||
|
||||
//---------------------------------
|
||||
// composite cache
|
||||
|
||||
static void composite_hash_dtor(void *key, size_t key_size, void *value,
|
||||
size_t value_size)
|
||||
{
|
||||
CompositeHashValue *v = value;
|
||||
free(v->a);
|
||||
free(v->b);
|
||||
free(key);
|
||||
free(value);
|
||||
}
|
||||
|
||||
void *cache_add_composite(Hashmap *composite_cache,
|
||||
CompositeHashKey *key,
|
||||
CompositeHashValue *val)
|
||||
{
|
||||
return hashmap_insert(composite_cache, key, val);
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Get a composite bitmap from composite cache.
|
||||
* \param key hash key
|
||||
* \return requested hash val or 0 if not found
|
||||
*/
|
||||
CompositeHashValue *cache_find_composite(Hashmap *composite_cache,
|
||||
CompositeHashKey *key)
|
||||
{
|
||||
return hashmap_find(composite_cache, key);
|
||||
}
|
||||
|
||||
Hashmap *ass_composite_cache_init(ASS_Library *library)
|
||||
{
|
||||
Hashmap *composite_cache;
|
||||
composite_cache = hashmap_init(library, sizeof(CompositeHashKey),
|
||||
sizeof(CompositeHashValue),
|
||||
0xFFFF + 13,
|
||||
composite_hash_dtor, composite_compare,
|
||||
composite_hash);
|
||||
return composite_cache;
|
||||
}
|
||||
|
||||
void ass_composite_cache_done(Hashmap *composite_cache)
|
||||
{
|
||||
hashmap_done(composite_cache);
|
||||
}
|
||||
|
||||
Hashmap *ass_composite_cache_reset(Hashmap *composite_cache)
|
||||
{
|
||||
ASS_Library *lib = composite_cache->library;
|
||||
|
||||
ass_composite_cache_done(composite_cache);
|
||||
return ass_composite_cache_init(lib);
|
||||
}
|
|
@ -1,119 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
|
||||
*
|
||||
* This file is part of libass.
|
||||
*
|
||||
* libass 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.
|
||||
*
|
||||
* libass 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 libass; if not, write to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#ifndef LIBASS_CACHE_H
|
||||
#define LIBASS_CACHE_H
|
||||
|
||||
#include "ass.h"
|
||||
#include "ass_font.h"
|
||||
#include "ass_bitmap.h"
|
||||
|
||||
typedef void (*HashmapItemDtor) (void *key, size_t key_size,
|
||||
void *value, size_t value_size);
|
||||
typedef int (*HashmapKeyCompare) (void *key1, void *key2,
|
||||
size_t key_size);
|
||||
typedef unsigned (*HashmapHash) (void *key, size_t key_size);
|
||||
|
||||
typedef struct hashmap_item {
|
||||
void *key;
|
||||
void *value;
|
||||
struct hashmap_item *next;
|
||||
} HashmapItem;
|
||||
typedef HashmapItem *hashmap_item_p;
|
||||
|
||||
typedef struct {
|
||||
int nbuckets;
|
||||
size_t key_size, value_size;
|
||||
hashmap_item_p *root;
|
||||
HashmapItemDtor item_dtor; // a destructor for hashmap key/value pairs
|
||||
HashmapKeyCompare key_compare;
|
||||
HashmapHash hash;
|
||||
size_t cache_size;
|
||||
// stats
|
||||
int hit_count;
|
||||
int miss_count;
|
||||
int count;
|
||||
ASS_Library *library;
|
||||
} Hashmap;
|
||||
|
||||
Hashmap *hashmap_init(ASS_Library *library, size_t key_size,
|
||||
size_t value_size, int nbuckets,
|
||||
HashmapItemDtor item_dtor,
|
||||
HashmapKeyCompare key_compare,
|
||||
HashmapHash hash);
|
||||
void hashmap_done(Hashmap *map);
|
||||
void *hashmap_insert(Hashmap *map, void *key, void *value);
|
||||
void *hashmap_find(Hashmap *map, void *key);
|
||||
|
||||
Hashmap *ass_font_cache_init(ASS_Library *library);
|
||||
ASS_Font *ass_font_cache_find(Hashmap *, ASS_FontDesc *desc);
|
||||
void *ass_font_cache_add(Hashmap *, ASS_Font *font);
|
||||
void ass_font_cache_done(Hashmap *);
|
||||
|
||||
// Create definitions for bitmap_hash_key and glyph_hash_key
|
||||
#define CREATE_STRUCT_DEFINITIONS
|
||||
#include "ass_cache_template.h"
|
||||
|
||||
typedef struct {
|
||||
Bitmap *bm; // the actual bitmaps
|
||||
Bitmap *bm_o;
|
||||
Bitmap *bm_s;
|
||||
} BitmapHashValue;
|
||||
|
||||
Hashmap *ass_bitmap_cache_init(ASS_Library *library);
|
||||
void *cache_add_bitmap(Hashmap *, BitmapHashKey *key,
|
||||
BitmapHashValue *val);
|
||||
BitmapHashValue *cache_find_bitmap(Hashmap *bitmap_cache,
|
||||
BitmapHashKey *key);
|
||||
Hashmap *ass_bitmap_cache_reset(Hashmap *bitmap_cache);
|
||||
void ass_bitmap_cache_done(Hashmap *bitmap_cache);
|
||||
|
||||
|
||||
typedef struct {
|
||||
unsigned char *a;
|
||||
unsigned char *b;
|
||||
} CompositeHashValue;
|
||||
|
||||
Hashmap *ass_composite_cache_init(ASS_Library *library);
|
||||
void *cache_add_composite(Hashmap *, CompositeHashKey *key,
|
||||
CompositeHashValue *val);
|
||||
CompositeHashValue *cache_find_composite(Hashmap *composite_cache,
|
||||
CompositeHashKey *key);
|
||||
Hashmap *ass_composite_cache_reset(Hashmap *composite_cache);
|
||||
void ass_composite_cache_done(Hashmap *composite_cache);
|
||||
|
||||
|
||||
typedef struct {
|
||||
FT_Glyph glyph;
|
||||
FT_Glyph outline_glyph;
|
||||
FT_BBox bbox_scaled; // bbox after scaling, but before rotation
|
||||
FT_Vector advance; // 26.6, advance distance to the next bitmap in line
|
||||
int asc, desc; // ascender/descender of a drawing
|
||||
} GlyphHashValue;
|
||||
|
||||
Hashmap *ass_glyph_cache_init(ASS_Library *library);
|
||||
void *cache_add_glyph(Hashmap *, GlyphHashKey *key,
|
||||
GlyphHashValue *val);
|
||||
GlyphHashValue *cache_find_glyph(Hashmap *glyph_cache,
|
||||
GlyphHashKey *key);
|
||||
Hashmap *ass_glyph_cache_reset(Hashmap *glyph_cache);
|
||||
void ass_glyph_cache_done(Hashmap *glyph_cache);
|
||||
|
||||
#endif /* LIBASS_CACHE_H */
|
|
@ -1,122 +0,0 @@
|
|||
#ifdef CREATE_STRUCT_DEFINITIONS
|
||||
#undef CREATE_STRUCT_DEFINITIONS
|
||||
#define START(funcname, structname) \
|
||||
typedef struct structname {
|
||||
#define GENERIC(type, member) \
|
||||
type member;
|
||||
#define FTVECTOR(member) \
|
||||
FT_Vector member;
|
||||
#define BITMAPHASHKEY(member) \
|
||||
BitmapHashKey member;
|
||||
#define END(typedefnamename) \
|
||||
} typedefnamename;
|
||||
|
||||
#elif defined(CREATE_COMPARISON_FUNCTIONS)
|
||||
#undef CREATE_COMPARISON_FUNCTIONS
|
||||
#define START(funcname, structname) \
|
||||
static int funcname##_compare(void *key1, void *key2, size_t key_size) \
|
||||
{ \
|
||||
struct structname *a = key1; \
|
||||
struct structname *b = key2; \
|
||||
return // conditions follow
|
||||
#define GENERIC(type, member) \
|
||||
a->member == b->member &&
|
||||
#define FTVECTOR(member) \
|
||||
a->member.x == b->member.x && a->member.y == b->member.y &&
|
||||
#define BITMAPHASHKEY(member) \
|
||||
bitmap_compare(&a->member, &b->member, sizeof(a->member)) &&
|
||||
#define END(typedefname) \
|
||||
1; \
|
||||
}
|
||||
|
||||
#elif defined(CREATE_HASH_FUNCTIONS)
|
||||
#undef CREATE_HASH_FUNCTIONS
|
||||
#define START(funcname, structname) \
|
||||
static unsigned funcname##_hash(void *buf, size_t len) \
|
||||
{ \
|
||||
struct structname *p = buf; \
|
||||
unsigned hval = FNV1_32A_INIT;
|
||||
#define GENERIC(type, member) \
|
||||
hval = fnv_32a_buf(&p->member, sizeof(p->member), hval);
|
||||
#define FTVECTOR(member) GENERIC(, member.x); GENERIC(, member.y);
|
||||
#define BITMAPHASHKEY(member) { \
|
||||
unsigned temp = bitmap_hash(&p->member, sizeof(p->member)); \
|
||||
hval = fnv_32a_buf(&temp, sizeof(temp), hval); \
|
||||
}
|
||||
#define END(typedefname) \
|
||||
return hval; \
|
||||
}
|
||||
|
||||
#else
|
||||
#error missing defines
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
// describes a bitmap; bitmaps with equivalents structs are considered identical
|
||||
START(bitmap, bitmap_hash_key)
|
||||
GENERIC(char, bitmap) // bool : true = bitmap, false = outline
|
||||
GENERIC(ASS_Font *, font)
|
||||
GENERIC(double, size) // font size
|
||||
GENERIC(uint32_t, ch) // character code
|
||||
FTVECTOR(outline) // border width, 16.16 fixed point value
|
||||
GENERIC(int, bold)
|
||||
GENERIC(int, italic)
|
||||
GENERIC(char, be) // blur edges
|
||||
GENERIC(double, blur) // gaussian blur
|
||||
GENERIC(unsigned, scale_x) // 16.16
|
||||
GENERIC(unsigned, scale_y) // 16.16
|
||||
GENERIC(int, frx) // signed 16.16
|
||||
GENERIC(int, fry) // signed 16.16
|
||||
GENERIC(int, frz) // signed 16.16
|
||||
GENERIC(int, fax) // signed 16.16
|
||||
GENERIC(int, fay) // signed 16.16
|
||||
// shift vector that was added to glyph before applying rotation
|
||||
// = 0, if frx = fry = frx = 0
|
||||
// = (glyph base point) - (rotation origin), otherwise
|
||||
GENERIC(int, shift_x)
|
||||
GENERIC(int, shift_y)
|
||||
FTVECTOR(advance) // subpixel shift vector
|
||||
FTVECTOR(shadow_offset) // shadow subpixel shift
|
||||
GENERIC(unsigned, drawing_hash) // hashcode of a drawing
|
||||
GENERIC(unsigned, flags) // glyph decoration
|
||||
GENERIC(unsigned, border_style)
|
||||
END(BitmapHashKey)
|
||||
|
||||
// describes an outline glyph
|
||||
START(glyph, glyph_hash_key)
|
||||
GENERIC(ASS_Font *, font)
|
||||
GENERIC(double, size) // font size
|
||||
GENERIC(uint32_t, ch) // character code
|
||||
GENERIC(int, bold)
|
||||
GENERIC(int, italic)
|
||||
GENERIC(unsigned, scale_x) // 16.16
|
||||
GENERIC(unsigned, scale_y) // 16.16
|
||||
FTVECTOR(outline) // border width, 16.16
|
||||
GENERIC(unsigned, drawing_hash) // hashcode of a drawing
|
||||
GENERIC(unsigned, flags) // glyph decoration flags
|
||||
GENERIC(unsigned, border_style)
|
||||
END(GlyphHashKey)
|
||||
|
||||
// Cache for composited bitmaps
|
||||
START(composite, composite_hash_key)
|
||||
GENERIC(int, aw)
|
||||
GENERIC(int, ah)
|
||||
GENERIC(int, bw)
|
||||
GENERIC(int, bh)
|
||||
GENERIC(int, ax)
|
||||
GENERIC(int, ay)
|
||||
GENERIC(int, bx)
|
||||
GENERIC(int, by)
|
||||
GENERIC(int, as)
|
||||
GENERIC(int, bs)
|
||||
GENERIC(unsigned char *, a)
|
||||
GENERIC(unsigned char *, b)
|
||||
END(CompositeHashKey)
|
||||
|
||||
|
||||
#undef START
|
||||
#undef GENERIC
|
||||
#undef FTVECTOR
|
||||
#undef BITMAPHASHKEY
|
||||
#undef END
|
|
@ -1,495 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2009 Grigori Goronzy <greg@geekmind.org>
|
||||
*
|
||||
* This file is part of libass.
|
||||
*
|
||||
* Permission to use, copy, modify, and distribute this software for any
|
||||
* purpose with or without fee is hereby granted, provided that the above
|
||||
* copyright notice and this permission notice appear in all copies.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
#include <ft2build.h>
|
||||
#include FT_GLYPH_H
|
||||
#include FT_OUTLINE_H
|
||||
#include FT_BBOX_H
|
||||
#include <math.h>
|
||||
|
||||
#include "ass_utils.h"
|
||||
#include "ass_font.h"
|
||||
#include "ass_drawing.h"
|
||||
|
||||
#define CURVE_ACCURACY 64.0
|
||||
#define GLYPH_INITIAL_POINTS 100
|
||||
#define GLYPH_INITIAL_CONTOURS 5
|
||||
|
||||
/*
|
||||
* \brief Get and prepare a FreeType glyph
|
||||
*/
|
||||
static void drawing_make_glyph(ASS_Drawing *drawing, void *fontconfig_priv,
|
||||
ASS_Font *font, ASS_Hinting hint)
|
||||
{
|
||||
FT_OutlineGlyph glyph;
|
||||
|
||||
// This is hacky...
|
||||
glyph = (FT_OutlineGlyph) ass_font_get_glyph(fontconfig_priv, font,
|
||||
(uint32_t) ' ', hint, 0);
|
||||
if (glyph) {
|
||||
FT_Outline_Done(drawing->ftlibrary, &glyph->outline);
|
||||
FT_Outline_New(drawing->ftlibrary, GLYPH_INITIAL_POINTS,
|
||||
GLYPH_INITIAL_CONTOURS, &glyph->outline);
|
||||
|
||||
glyph->outline.n_contours = 0;
|
||||
glyph->outline.n_points = 0;
|
||||
glyph->root.advance.x = glyph->root.advance.y = 0;
|
||||
}
|
||||
drawing->glyph = glyph;
|
||||
}
|
||||
|
||||
/*
|
||||
* \brief Add a single point to a contour.
|
||||
*/
|
||||
static inline void drawing_add_point(ASS_Drawing *drawing,
|
||||
FT_Vector *point)
|
||||
{
|
||||
FT_Outline *ol = &drawing->glyph->outline;
|
||||
|
||||
if (ol->n_points >= drawing->max_points) {
|
||||
drawing->max_points *= 2;
|
||||
ol->points = realloc(ol->points, sizeof(FT_Vector) *
|
||||
drawing->max_points);
|
||||
ol->tags = realloc(ol->tags, drawing->max_points);
|
||||
}
|
||||
|
||||
ol->points[ol->n_points].x = point->x;
|
||||
ol->points[ol->n_points].y = point->y;
|
||||
ol->tags[ol->n_points] = 1;
|
||||
ol->n_points++;
|
||||
}
|
||||
|
||||
/*
|
||||
* \brief Close a contour and check glyph size overflow.
|
||||
*/
|
||||
static inline void drawing_close_shape(ASS_Drawing *drawing)
|
||||
{
|
||||
FT_Outline *ol = &drawing->glyph->outline;
|
||||
|
||||
if (ol->n_contours >= drawing->max_contours) {
|
||||
drawing->max_contours *= 2;
|
||||
ol->contours = realloc(ol->contours, sizeof(short) *
|
||||
drawing->max_contours);
|
||||
}
|
||||
|
||||
if (ol->n_points) {
|
||||
ol->contours[ol->n_contours] = ol->n_points - 1;
|
||||
ol->n_contours++;
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* \brief Prepare drawing for parsing. This just sets a few parameters.
|
||||
*/
|
||||
static void drawing_prepare(ASS_Drawing *drawing)
|
||||
{
|
||||
// Scaling parameters
|
||||
drawing->point_scale_x = drawing->scale_x *
|
||||
64.0 / (1 << (drawing->scale - 1));
|
||||
drawing->point_scale_y = drawing->scale_y *
|
||||
64.0 / (1 << (drawing->scale - 1));
|
||||
}
|
||||
|
||||
/*
|
||||
* \brief Finish a drawing. This only sets the horizontal advance according
|
||||
* to the glyph's bbox at the moment.
|
||||
*/
|
||||
static void drawing_finish(ASS_Drawing *drawing, int raw_mode)
|
||||
{
|
||||
int i, offset;
|
||||
FT_BBox bbox;
|
||||
FT_Outline *ol = &drawing->glyph->outline;
|
||||
|
||||
// Close the last contour
|
||||
drawing_close_shape(drawing);
|
||||
|
||||
#if 0
|
||||
// Dump points
|
||||
for (i = 0; i < ol->n_points; i++) {
|
||||
printf("point (%d, %d)\n", (int) ol->points[i].x,
|
||||
(int) ol->points[i].y);
|
||||
}
|
||||
|
||||
// Dump contours
|
||||
for (i = 0; i < ol->n_contours; i++)
|
||||
printf("contour %d\n", ol->contours[i]);
|
||||
#endif
|
||||
|
||||
ass_msg(drawing->library, MSGL_V,
|
||||
"Parsed drawing with %d points and %d contours", ol->n_points,
|
||||
ol->n_contours);
|
||||
|
||||
if (raw_mode)
|
||||
return;
|
||||
|
||||
FT_Outline_Get_CBox(&drawing->glyph->outline, &bbox);
|
||||
drawing->glyph->root.advance.x = d6_to_d16(bbox.xMax - bbox.xMin);
|
||||
|
||||
drawing->desc = double_to_d6(-drawing->pbo * drawing->scale_y);
|
||||
drawing->asc = bbox.yMax - bbox.yMin + drawing->desc;
|
||||
|
||||
// Place it onto the baseline
|
||||
offset = (bbox.yMax - bbox.yMin) + double_to_d6(-drawing->pbo *
|
||||
drawing->scale_y);
|
||||
for (i = 0; i < ol->n_points; i++)
|
||||
ol->points[i].y += offset;
|
||||
}
|
||||
|
||||
/*
|
||||
* \brief Check whether a number of items on the list is available
|
||||
*/
|
||||
static int token_check_values(ASS_DrawingToken *token, int i, int type)
|
||||
{
|
||||
int j;
|
||||
for (j = 0; j < i; j++) {
|
||||
if (!token || token->type != type) return 0;
|
||||
token = token->next;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
/*
|
||||
* \brief Tokenize a drawing string into a list of ASS_DrawingToken
|
||||
* This also expands points for closing b-splines
|
||||
*/
|
||||
static ASS_DrawingToken *drawing_tokenize(char *str)
|
||||
{
|
||||
char *p = str;
|
||||
int i, val, type = -1, is_set = 0;
|
||||
FT_Vector point = {0, 0};
|
||||
|
||||
ASS_DrawingToken *root = NULL, *tail = NULL, *spline_start = NULL;
|
||||
|
||||
while (*p) {
|
||||
if (*p == 'c' && spline_start) {
|
||||
// Close b-splines: add the first three points of the b-spline
|
||||
// back to the end
|
||||
if (token_check_values(spline_start->next, 2, TOKEN_B_SPLINE)) {
|
||||
for (i = 0; i < 3; i++) {
|
||||
tail->next = calloc(1, sizeof(ASS_DrawingToken));
|
||||
tail->next->prev = tail;
|
||||
tail = tail->next;
|
||||
tail->type = TOKEN_B_SPLINE;
|
||||
tail->point = spline_start->point;
|
||||
spline_start = spline_start->next;
|
||||
}
|
||||
spline_start = NULL;
|
||||
}
|
||||
} else if (!is_set && mystrtoi(&p, &val)) {
|
||||
point.x = val;
|
||||
is_set = 1;
|
||||
p--;
|
||||
} else if (is_set == 1 && mystrtoi(&p, &val)) {
|
||||
point.y = val;
|
||||
is_set = 2;
|
||||
p--;
|
||||
} else if (*p == 'm')
|
||||
type = TOKEN_MOVE;
|
||||
else if (*p == 'n')
|
||||
type = TOKEN_MOVE_NC;
|
||||
else if (*p == 'l')
|
||||
type = TOKEN_LINE;
|
||||
else if (*p == 'b')
|
||||
type = TOKEN_CUBIC_BEZIER;
|
||||
else if (*p == 'q')
|
||||
type = TOKEN_CONIC_BEZIER;
|
||||
else if (*p == 's')
|
||||
type = TOKEN_B_SPLINE;
|
||||
// We're simply ignoring TOKEN_EXTEND_B_SPLINE here.
|
||||
// This is not harmful at all, since it can be ommitted with
|
||||
// similar result (the spline is extended anyway).
|
||||
|
||||
if (type != -1 && is_set == 2) {
|
||||
if (root) {
|
||||
tail->next = calloc(1, sizeof(ASS_DrawingToken));
|
||||
tail->next->prev = tail;
|
||||
tail = tail->next;
|
||||
} else
|
||||
root = tail = calloc(1, sizeof(ASS_DrawingToken));
|
||||
tail->type = type;
|
||||
tail->point = point;
|
||||
is_set = 0;
|
||||
if (type == TOKEN_B_SPLINE && !spline_start)
|
||||
spline_start = tail->prev;
|
||||
}
|
||||
p++;
|
||||
}
|
||||
|
||||
#if 0
|
||||
// Check tokens
|
||||
ASS_DrawingToken *t = root;
|
||||
while(t) {
|
||||
printf("token %d point (%d, %d)\n", t->type, t->point.x, t->point.y);
|
||||
t = t->next;
|
||||
}
|
||||
#endif
|
||||
|
||||
return root;
|
||||
}
|
||||
|
||||
/*
|
||||
* \brief Free a list of tokens
|
||||
*/
|
||||
static void drawing_free_tokens(ASS_DrawingToken *token)
|
||||
{
|
||||
while (token) {
|
||||
ASS_DrawingToken *at = token;
|
||||
token = token->next;
|
||||
free(at);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* \brief Translate and scale a point coordinate according to baseline
|
||||
* offset and scale.
|
||||
*/
|
||||
static inline void translate_point(ASS_Drawing *drawing, FT_Vector *point)
|
||||
{
|
||||
point->x = drawing->point_scale_x * point->x;
|
||||
point->y = drawing->point_scale_y * -point->y;
|
||||
}
|
||||
|
||||
/*
|
||||
* \brief Evaluate a curve into lines
|
||||
* This curve evaluator is also used in VSFilter (RTS.cpp); it's a simple
|
||||
* implementation of the De Casteljau algorithm.
|
||||
*/
|
||||
static void drawing_evaluate_curve(ASS_Drawing *drawing,
|
||||
ASS_DrawingToken *token, char spline,
|
||||
int started)
|
||||
{
|
||||
double cx3, cx2, cx1, cx0, cy3, cy2, cy1, cy0;
|
||||
double t, h, max_accel, max_accel1, max_accel2;
|
||||
FT_Vector cur = {0, 0};
|
||||
|
||||
cur = token->point;
|
||||
translate_point(drawing, &cur);
|
||||
int x0 = cur.x;
|
||||
int y0 = cur.y;
|
||||
token = token->next;
|
||||
cur = token->point;
|
||||
translate_point(drawing, &cur);
|
||||
int x1 = cur.x;
|
||||
int y1 = cur.y;
|
||||
token = token->next;
|
||||
cur = token->point;
|
||||
translate_point(drawing, &cur);
|
||||
int x2 = cur.x;
|
||||
int y2 = cur.y;
|
||||
token = token->next;
|
||||
cur = token->point;
|
||||
translate_point(drawing, &cur);
|
||||
int x3 = cur.x;
|
||||
int y3 = cur.y;
|
||||
|
||||
if (spline) {
|
||||
// 1 [-1 +3 -3 +1]
|
||||
// - * [+3 -6 +3 0]
|
||||
// 6 [-3 0 +3 0]
|
||||
// [+1 +4 +1 0]
|
||||
|
||||
double div6 = 1.0/6.0;
|
||||
|
||||
cx3 = div6*(- x0+3*x1-3*x2+x3);
|
||||
cx2 = div6*( 3*x0-6*x1+3*x2);
|
||||
cx1 = div6*(-3*x0 +3*x2);
|
||||
cx0 = div6*( x0+4*x1+1*x2);
|
||||
|
||||
cy3 = div6*(- y0+3*y1-3*y2+y3);
|
||||
cy2 = div6*( 3*y0-6*y1+3*y2);
|
||||
cy1 = div6*(-3*y0 +3*y2);
|
||||
cy0 = div6*( y0+4*y1+1*y2);
|
||||
} else {
|
||||
// [-1 +3 -3 +1]
|
||||
// [+3 -6 +3 0]
|
||||
// [-3 +3 0 0]
|
||||
// [+1 0 0 0]
|
||||
|
||||
cx3 = - x0+3*x1-3*x2+x3;
|
||||
cx2 = 3*x0-6*x1+3*x2;
|
||||
cx1 = -3*x0+3*x1;
|
||||
cx0 = x0;
|
||||
|
||||
cy3 = - y0+3*y1-3*y2+y3;
|
||||
cy2 = 3*y0-6*y1+3*y2;
|
||||
cy1 = -3*y0+3*y1;
|
||||
cy0 = y0;
|
||||
}
|
||||
|
||||
max_accel1 = fabs(2 * cy2) + fabs(6 * cy3);
|
||||
max_accel2 = fabs(2 * cx2) + fabs(6 * cx3);
|
||||
|
||||
max_accel = FFMAX(max_accel1, max_accel2);
|
||||
h = 1.0;
|
||||
|
||||
if (max_accel > CURVE_ACCURACY)
|
||||
h = sqrt(CURVE_ACCURACY / max_accel);
|
||||
|
||||
if (!started) {
|
||||
cur.x = cx0;
|
||||
cur.y = cy0;
|
||||
drawing_add_point(drawing, &cur);
|
||||
}
|
||||
|
||||
for (t = 0; t < 1.0; t += h) {
|
||||
cur.x = cx0 + t * (cx1 + t * (cx2 + t * cx3));
|
||||
cur.y = cy0 + t * (cy1 + t * (cy2 + t * cy3));
|
||||
drawing_add_point(drawing, &cur);
|
||||
}
|
||||
|
||||
cur.x = cx0 + cx1 + cx2 + cx3;
|
||||
cur.y = cy0 + cy1 + cy2 + cy3;
|
||||
drawing_add_point(drawing, &cur);
|
||||
}
|
||||
|
||||
/*
|
||||
* \brief Create and initialize a new drawing and return it
|
||||
*/
|
||||
ASS_Drawing *ass_drawing_new(void *fontconfig_priv, ASS_Font *font,
|
||||
ASS_Hinting hint, FT_Library lib)
|
||||
{
|
||||
ASS_Drawing *drawing;
|
||||
|
||||
drawing = calloc(1, sizeof(*drawing));
|
||||
drawing->text = calloc(1, DRAWING_INITIAL_SIZE);
|
||||
drawing->size = DRAWING_INITIAL_SIZE;
|
||||
|
||||
drawing->ftlibrary = lib;
|
||||
if (font) {
|
||||
drawing->library = font->library;
|
||||
drawing_make_glyph(drawing, fontconfig_priv, font, hint);
|
||||
}
|
||||
|
||||
drawing->scale_x = 1.;
|
||||
drawing->scale_y = 1.;
|
||||
drawing->max_contours = GLYPH_INITIAL_CONTOURS;
|
||||
drawing->max_points = GLYPH_INITIAL_POINTS;
|
||||
|
||||
return drawing;
|
||||
}
|
||||
|
||||
/*
|
||||
* \brief Free a drawing
|
||||
*/
|
||||
void ass_drawing_free(ASS_Drawing* drawing)
|
||||
{
|
||||
if (drawing) {
|
||||
if (drawing->glyph)
|
||||
FT_Done_Glyph((FT_Glyph) drawing->glyph);
|
||||
free(drawing->text);
|
||||
}
|
||||
free(drawing);
|
||||
}
|
||||
|
||||
/*
|
||||
* \brief Add one ASCII character to the drawing text buffer
|
||||
*/
|
||||
void ass_drawing_add_char(ASS_Drawing* drawing, char symbol)
|
||||
{
|
||||
drawing->text[drawing->i++] = symbol;
|
||||
drawing->text[drawing->i] = 0;
|
||||
|
||||
if (drawing->i + 1 >= drawing->size) {
|
||||
drawing->size *= 2;
|
||||
drawing->text = realloc(drawing->text, drawing->size);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* \brief Create a hashcode for the drawing
|
||||
* XXX: To avoid collisions a better hash algorithm might be useful.
|
||||
*/
|
||||
void ass_drawing_hash(ASS_Drawing* drawing)
|
||||
{
|
||||
drawing->hash = fnv_32a_str(drawing->text, FNV1_32A_INIT);
|
||||
}
|
||||
|
||||
/*
|
||||
* \brief Convert token list to outline. Calls the line and curve evaluators.
|
||||
*/
|
||||
FT_OutlineGlyph *ass_drawing_parse(ASS_Drawing *drawing, int raw_mode)
|
||||
{
|
||||
int started = 0;
|
||||
ASS_DrawingToken *token;
|
||||
FT_Vector pen = {0, 0};
|
||||
|
||||
if (!drawing->glyph)
|
||||
return NULL;
|
||||
|
||||
drawing->tokens = drawing_tokenize(drawing->text);
|
||||
drawing_prepare(drawing);
|
||||
|
||||
token = drawing->tokens;
|
||||
while (token) {
|
||||
// Draw something according to current command
|
||||
switch (token->type) {
|
||||
case TOKEN_MOVE_NC:
|
||||
pen = token->point;
|
||||
translate_point(drawing, &pen);
|
||||
token = token->next;
|
||||
break;
|
||||
case TOKEN_MOVE:
|
||||
pen = token->point;
|
||||
translate_point(drawing, &pen);
|
||||
if (started) {
|
||||
drawing_close_shape(drawing);
|
||||
started = 0;
|
||||
}
|
||||
token = token->next;
|
||||
break;
|
||||
case TOKEN_LINE: {
|
||||
FT_Vector to;
|
||||
to = token->point;
|
||||
translate_point(drawing, &to);
|
||||
if (!started) drawing_add_point(drawing, &pen);
|
||||
drawing_add_point(drawing, &to);
|
||||
started = 1;
|
||||
token = token->next;
|
||||
break;
|
||||
}
|
||||
case TOKEN_CUBIC_BEZIER:
|
||||
if (token_check_values(token, 3, TOKEN_CUBIC_BEZIER) &&
|
||||
token->prev) {
|
||||
drawing_evaluate_curve(drawing, token->prev, 0, started);
|
||||
token = token->next;
|
||||
token = token->next;
|
||||
token = token->next;
|
||||
started = 1;
|
||||
} else
|
||||
token = token->next;
|
||||
break;
|
||||
case TOKEN_B_SPLINE:
|
||||
if (token_check_values(token, 3, TOKEN_B_SPLINE) &&
|
||||
token->prev) {
|
||||
drawing_evaluate_curve(drawing, token->prev, 1, started);
|
||||
token = token->next;
|
||||
started = 1;
|
||||
} else
|
||||
token = token->next;
|
||||
break;
|
||||
default:
|
||||
token = token->next;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
drawing_finish(drawing, raw_mode);
|
||||
drawing_free_tokens(drawing->tokens);
|
||||
return &drawing->glyph;
|
||||
}
|
|
@ -1,77 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2009 Grigori Goronzy <greg@geekmind.org>
|
||||
*
|
||||
* This file is part of libass.
|
||||
*
|
||||
* Permission to use, copy, modify, and distribute this software for any
|
||||
* purpose with or without fee is hereby granted, provided that the above
|
||||
* copyright notice and this permission notice appear in all copies.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef LIBASS_DRAWING_H
|
||||
#define LIBASS_DRAWING_H
|
||||
|
||||
#include <ft2build.h>
|
||||
#include FT_GLYPH_H
|
||||
|
||||
#include "ass.h"
|
||||
|
||||
#define DRAWING_INITIAL_SIZE 256
|
||||
|
||||
typedef enum {
|
||||
TOKEN_MOVE,
|
||||
TOKEN_MOVE_NC,
|
||||
TOKEN_LINE,
|
||||
TOKEN_CUBIC_BEZIER,
|
||||
TOKEN_CONIC_BEZIER,
|
||||
TOKEN_B_SPLINE,
|
||||
TOKEN_EXTEND_SPLINE,
|
||||
TOKEN_CLOSE
|
||||
} ASS_TokenType;
|
||||
|
||||
typedef struct ass_drawing_token {
|
||||
ASS_TokenType type;
|
||||
FT_Vector point;
|
||||
struct ass_drawing_token *next;
|
||||
struct ass_drawing_token *prev;
|
||||
} ASS_DrawingToken;
|
||||
|
||||
typedef struct {
|
||||
char *text; // drawing string
|
||||
int i; // text index
|
||||
int scale; // scale (1-64) for subpixel accuracy
|
||||
double pbo; // drawing will be shifted in y direction by this amount
|
||||
double scale_x; // FontScaleX
|
||||
double scale_y; // FontScaleY
|
||||
int asc; // ascender
|
||||
int desc; // descender
|
||||
FT_OutlineGlyph glyph; // the "fake" glyph created for later rendering
|
||||
int hash; // hash value (for caching)
|
||||
|
||||
// private
|
||||
FT_Library ftlibrary; // FT library instance, needed for font ops
|
||||
ASS_Library *library;
|
||||
int size; // current buffer size
|
||||
ASS_DrawingToken *tokens; // tokenized drawing
|
||||
int max_points; // current maximum size
|
||||
int max_contours;
|
||||
double point_scale_x;
|
||||
double point_scale_y;
|
||||
} ASS_Drawing;
|
||||
|
||||
ASS_Drawing *ass_drawing_new(void *fontconfig_priv, ASS_Font *font,
|
||||
ASS_Hinting hint, FT_Library lib);
|
||||
void ass_drawing_free(ASS_Drawing* drawing);
|
||||
void ass_drawing_add_char(ASS_Drawing* drawing, char symbol);
|
||||
void ass_drawing_hash(ASS_Drawing* drawing);
|
||||
FT_OutlineGlyph *ass_drawing_parse(ASS_Drawing *drawing, int raw_mode);
|
||||
|
||||
#endif /* LIBASS_DRAWING_H */
|
|
@ -1,532 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
|
||||
*
|
||||
* This file is part of libass.
|
||||
*
|
||||
* libass 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.
|
||||
*
|
||||
* libass 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 libass; if not, write to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include <inttypes.h>
|
||||
#include <ft2build.h>
|
||||
#include FT_FREETYPE_H
|
||||
#include FT_SYNTHESIS_H
|
||||
#include FT_GLYPH_H
|
||||
#include FT_TRUETYPE_TABLES_H
|
||||
#include FT_OUTLINE_H
|
||||
|
||||
#include "ass.h"
|
||||
#include "ass_library.h"
|
||||
#include "ass_font.h"
|
||||
#include "ass_bitmap.h"
|
||||
#include "ass_cache.h"
|
||||
#include "ass_fontconfig.h"
|
||||
#include "ass_utils.h"
|
||||
|
||||
/**
|
||||
* Select Microfost Unicode CharMap, if the font has one.
|
||||
* Otherwise, let FreeType decide.
|
||||
*/
|
||||
static void charmap_magic(ASS_Library *library, FT_Face face)
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < face->num_charmaps; ++i) {
|
||||
FT_CharMap cmap = face->charmaps[i];
|
||||
unsigned pid = cmap->platform_id;
|
||||
unsigned eid = cmap->encoding_id;
|
||||
if (pid == 3 /*microsoft */
|
||||
&& (eid == 1 /*unicode bmp */
|
||||
|| eid == 10 /*full unicode */ )) {
|
||||
FT_Set_Charmap(face, cmap);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
if (!face->charmap) {
|
||||
if (face->num_charmaps == 0) {
|
||||
ass_msg(library, MSGL_WARN, "Font face with no charmaps");
|
||||
return;
|
||||
}
|
||||
ass_msg(library, MSGL_WARN,
|
||||
"No charmap autodetected, trying the first one");
|
||||
FT_Set_Charmap(face, face->charmaps[0]);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
static void update_transform(ASS_Font *font)
|
||||
{
|
||||
int i;
|
||||
FT_Matrix m;
|
||||
m.xx = double_to_d16(font->scale_x);
|
||||
m.yy = double_to_d16(font->scale_y);
|
||||
m.xy = m.yx = 0;
|
||||
for (i = 0; i < font->n_faces; ++i)
|
||||
FT_Set_Transform(font->faces[i], &m, &font->v);
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief find a memory font by name
|
||||
*/
|
||||
static int find_font(ASS_Library *library, char *name)
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < library->num_fontdata; ++i)
|
||||
if (strcasecmp(name, library->fontdata[i].name) == 0)
|
||||
return i;
|
||||
return -1;
|
||||
}
|
||||
|
||||
static void face_set_size(FT_Face face, double size);
|
||||
|
||||
static void buggy_font_workaround(FT_Face face)
|
||||
{
|
||||
// Some fonts have zero Ascender/Descender fields in 'hhea' table.
|
||||
// In this case, get the information from 'os2' table or, as
|
||||
// a last resort, from face.bbox.
|
||||
if (face->ascender + face->descender == 0 || face->height == 0) {
|
||||
TT_OS2 *os2 = FT_Get_Sfnt_Table(face, ft_sfnt_os2);
|
||||
if (os2) {
|
||||
face->ascender = os2->sTypoAscender;
|
||||
face->descender = os2->sTypoDescender;
|
||||
face->height = face->ascender - face->descender;
|
||||
} else {
|
||||
face->ascender = face->bbox.yMax;
|
||||
face->descender = face->bbox.yMin;
|
||||
face->height = face->ascender - face->descender;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Select a face with the given charcode and add it to ASS_Font
|
||||
* \return index of the new face in font->faces, -1 if failed
|
||||
*/
|
||||
static int add_face(void *fc_priv, ASS_Font *font, uint32_t ch)
|
||||
{
|
||||
char *path;
|
||||
int index;
|
||||
FT_Face face;
|
||||
int error;
|
||||
int mem_idx;
|
||||
|
||||
if (font->n_faces == ASS_FONT_MAX_FACES)
|
||||
return -1;
|
||||
|
||||
path =
|
||||
fontconfig_select(font->library, fc_priv, font->desc.family,
|
||||
font->desc.treat_family_as_pattern,
|
||||
font->desc.bold, font->desc.italic, &index, ch);
|
||||
if (!path)
|
||||
return -1;
|
||||
|
||||
mem_idx = find_font(font->library, path);
|
||||
if (mem_idx >= 0) {
|
||||
error =
|
||||
FT_New_Memory_Face(font->ftlibrary,
|
||||
(unsigned char *) font->library->
|
||||
fontdata[mem_idx].data,
|
||||
font->library->fontdata[mem_idx].size, 0,
|
||||
&face);
|
||||
if (error) {
|
||||
ass_msg(font->library, MSGL_WARN,
|
||||
"Error opening memory font: '%s'", path);
|
||||
free(path);
|
||||
return -1;
|
||||
}
|
||||
} else {
|
||||
error = FT_New_Face(font->ftlibrary, path, index, &face);
|
||||
if (error) {
|
||||
ass_msg(font->library, MSGL_WARN,
|
||||
"Error opening font: '%s', %d", path, index);
|
||||
free(path);
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
charmap_magic(font->library, face);
|
||||
buggy_font_workaround(face);
|
||||
|
||||
font->faces[font->n_faces++] = face;
|
||||
update_transform(font);
|
||||
face_set_size(face, font->size);
|
||||
free(path);
|
||||
return font->n_faces - 1;
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Create a new ASS_Font according to "desc" argument
|
||||
*/
|
||||
ASS_Font *ass_font_new(void *font_cache, ASS_Library *library,
|
||||
FT_Library ftlibrary, void *fc_priv,
|
||||
ASS_FontDesc *desc)
|
||||
{
|
||||
int error;
|
||||
ASS_Font *fontp;
|
||||
ASS_Font font;
|
||||
|
||||
fontp = ass_font_cache_find((Hashmap *) font_cache, desc);
|
||||
if (fontp)
|
||||
return fontp;
|
||||
|
||||
font.library = library;
|
||||
font.ftlibrary = ftlibrary;
|
||||
font.n_faces = 0;
|
||||
font.desc.family = strdup(desc->family);
|
||||
font.desc.treat_family_as_pattern = desc->treat_family_as_pattern;
|
||||
font.desc.bold = desc->bold;
|
||||
font.desc.italic = desc->italic;
|
||||
|
||||
font.scale_x = font.scale_y = 1.;
|
||||
font.v.x = font.v.y = 0;
|
||||
font.size = 0.;
|
||||
|
||||
error = add_face(fc_priv, &font, 0);
|
||||
if (error == -1) {
|
||||
free(font.desc.family);
|
||||
return 0;
|
||||
} else
|
||||
return ass_font_cache_add((Hashmap *) font_cache, &font);
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Set font transformation matrix and shift vector
|
||||
**/
|
||||
void ass_font_set_transform(ASS_Font *font, double scale_x,
|
||||
double scale_y, FT_Vector *v)
|
||||
{
|
||||
font->scale_x = scale_x;
|
||||
font->scale_y = scale_y;
|
||||
if (v) {
|
||||
font->v.x = v->x;
|
||||
font->v.y = v->y;
|
||||
}
|
||||
update_transform(font);
|
||||
}
|
||||
|
||||
static void face_set_size(FT_Face face, double size)
|
||||
{
|
||||
TT_HoriHeader *hori = FT_Get_Sfnt_Table(face, ft_sfnt_hhea);
|
||||
TT_OS2 *os2 = FT_Get_Sfnt_Table(face, ft_sfnt_os2);
|
||||
double mscale = 1.;
|
||||
FT_Size_RequestRec rq;
|
||||
FT_Size_Metrics *m = &face->size->metrics;
|
||||
// VSFilter uses metrics from TrueType OS/2 table
|
||||
// The idea was borrowed from asa (http://asa.diac24.net)
|
||||
if (hori && os2) {
|
||||
int hori_height = hori->Ascender - hori->Descender;
|
||||
int os2_height = os2->usWinAscent + os2->usWinDescent;
|
||||
if (hori_height && os2_height)
|
||||
mscale = (double) hori_height / os2_height;
|
||||
}
|
||||
memset(&rq, 0, sizeof(rq));
|
||||
rq.type = FT_SIZE_REQUEST_TYPE_REAL_DIM;
|
||||
rq.width = 0;
|
||||
rq.height = double_to_d6(size * mscale);
|
||||
rq.horiResolution = rq.vertResolution = 0;
|
||||
FT_Request_Size(face, &rq);
|
||||
m->ascender /= mscale;
|
||||
m->descender /= mscale;
|
||||
m->height /= mscale;
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Set font size
|
||||
**/
|
||||
void ass_font_set_size(ASS_Font *font, double size)
|
||||
{
|
||||
int i;
|
||||
if (font->size != size) {
|
||||
font->size = size;
|
||||
for (i = 0; i < font->n_faces; ++i)
|
||||
face_set_size(font->faces[i], size);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Get maximal font ascender and descender.
|
||||
* \param ch character code
|
||||
* The values are extracted from the font face that provides glyphs for the given character
|
||||
**/
|
||||
void ass_font_get_asc_desc(ASS_Font *font, uint32_t ch, int *asc,
|
||||
int *desc)
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < font->n_faces; ++i) {
|
||||
FT_Face face = font->faces[i];
|
||||
TT_OS2 *os2 = FT_Get_Sfnt_Table(face, ft_sfnt_os2);
|
||||
if (FT_Get_Char_Index(face, ch)) {
|
||||
int y_scale = face->size->metrics.y_scale;
|
||||
if (os2) {
|
||||
*asc = FT_MulFix(os2->usWinAscent, y_scale);
|
||||
*desc = FT_MulFix(os2->usWinDescent, y_scale);
|
||||
} else {
|
||||
*asc = FT_MulFix(face->ascender, y_scale);
|
||||
*desc = FT_MulFix(-face->descender, y_scale);
|
||||
}
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
*asc = *desc = 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Strike a glyph with a horizontal line; it's possible to underline it
|
||||
* and/or strike through it. For the line's position and size, truetype
|
||||
* tables are consulted. Obviously this relies on the data in the tables
|
||||
* being accurate.
|
||||
*
|
||||
*/
|
||||
static int ass_strike_outline_glyph(FT_Face face, ASS_Font *font,
|
||||
FT_Glyph glyph, int under, int through)
|
||||
{
|
||||
TT_OS2 *os2 = FT_Get_Sfnt_Table(face, ft_sfnt_os2);
|
||||
TT_Postscript *ps = FT_Get_Sfnt_Table(face, ft_sfnt_post);
|
||||
FT_Outline *ol = &((FT_OutlineGlyph) glyph)->outline;
|
||||
int bear, advance, y_scale, i, dir;
|
||||
|
||||
if (!under && !through)
|
||||
return 0;
|
||||
|
||||
// Grow outline
|
||||
i = (under ? 4 : 0) + (through ? 4 : 0);
|
||||
ol->points = realloc(ol->points, sizeof(FT_Vector) *
|
||||
(ol->n_points + i));
|
||||
ol->tags = realloc(ol->tags, ol->n_points + i);
|
||||
i = !!under + !!through;
|
||||
ol->contours = realloc(ol->contours, sizeof(short) *
|
||||
(ol->n_contours + i));
|
||||
|
||||
// If the bearing is negative, the glyph starts left of the current
|
||||
// pen position
|
||||
bear = FFMIN(face->glyph->metrics.horiBearingX, 0);
|
||||
// We're adding half a pixel to avoid small gaps
|
||||
advance = d16_to_d6(glyph->advance.x) + 32;
|
||||
y_scale = face->size->metrics.y_scale;
|
||||
|
||||
// Reverse drawing direction for non-truetype fonts
|
||||
dir = FT_Outline_Get_Orientation(ol);
|
||||
|
||||
// Add points to the outline
|
||||
if (under && ps) {
|
||||
int pos, size;
|
||||
pos = FT_MulFix(ps->underlinePosition, y_scale * font->scale_y);
|
||||
size = FT_MulFix(ps->underlineThickness,
|
||||
y_scale * font->scale_y / 2);
|
||||
|
||||
if (pos > 0 || size <= 0)
|
||||
return 1;
|
||||
|
||||
FT_Vector points[4] = {
|
||||
{.x = bear, .y = pos + size},
|
||||
{.x = advance, .y = pos + size},
|
||||
{.x = advance, .y = pos - size},
|
||||
{.x = bear, .y = pos - size},
|
||||
};
|
||||
|
||||
if (dir == FT_ORIENTATION_TRUETYPE) {
|
||||
for (i = 0; i < 4; i++) {
|
||||
ol->points[ol->n_points] = points[i];
|
||||
ol->tags[ol->n_points++] = 1;
|
||||
}
|
||||
} else {
|
||||
for (i = 3; i >= 0; i--) {
|
||||
ol->points[ol->n_points] = points[i];
|
||||
ol->tags[ol->n_points++] = 1;
|
||||
}
|
||||
}
|
||||
|
||||
ol->contours[ol->n_contours++] = ol->n_points - 1;
|
||||
}
|
||||
|
||||
if (through && os2) {
|
||||
int pos, size;
|
||||
pos = FT_MulFix(os2->yStrikeoutPosition, y_scale * font->scale_y);
|
||||
size = FT_MulFix(os2->yStrikeoutSize, y_scale * font->scale_y / 2);
|
||||
|
||||
if (pos < 0 || size <= 0)
|
||||
return 1;
|
||||
|
||||
FT_Vector points[4] = {
|
||||
{.x = bear, .y = pos + size},
|
||||
{.x = advance, .y = pos + size},
|
||||
{.x = advance, .y = pos - size},
|
||||
{.x = bear, .y = pos - size},
|
||||
};
|
||||
|
||||
if (dir == FT_ORIENTATION_TRUETYPE) {
|
||||
for (i = 0; i < 4; i++) {
|
||||
ol->points[ol->n_points] = points[i];
|
||||
ol->tags[ol->n_points++] = 1;
|
||||
}
|
||||
} else {
|
||||
for (i = 3; i >= 0; i--) {
|
||||
ol->points[ol->n_points] = points[i];
|
||||
ol->tags[ol->n_points++] = 1;
|
||||
}
|
||||
}
|
||||
|
||||
ol->contours[ol->n_contours++] = ol->n_points - 1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Slightly embold a glyph without touching its metrics
|
||||
*/
|
||||
static void ass_glyph_embolden(FT_GlyphSlot slot)
|
||||
{
|
||||
int str;
|
||||
|
||||
if (slot->format != FT_GLYPH_FORMAT_OUTLINE)
|
||||
return;
|
||||
|
||||
str = FT_MulFix(slot->face->units_per_EM,
|
||||
slot->face->size->metrics.y_scale) / 64;
|
||||
|
||||
FT_Outline_Embolden(&slot->outline, str);
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Get a glyph
|
||||
* \param ch character code
|
||||
**/
|
||||
FT_Glyph ass_font_get_glyph(void *fontconfig_priv, ASS_Font *font,
|
||||
uint32_t ch, ASS_Hinting hinting, int deco)
|
||||
{
|
||||
int error;
|
||||
int index = 0;
|
||||
int i;
|
||||
FT_Glyph glyph;
|
||||
FT_Face face = 0;
|
||||
int flags = 0;
|
||||
|
||||
if (ch < 0x20)
|
||||
return 0;
|
||||
// Handle NBSP like a regular space when rendering the glyph
|
||||
if (ch == 0xa0)
|
||||
ch = ' ';
|
||||
if (font->n_faces == 0)
|
||||
return 0;
|
||||
|
||||
for (i = 0; i < font->n_faces; ++i) {
|
||||
face = font->faces[i];
|
||||
index = FT_Get_Char_Index(face, ch);
|
||||
if (index)
|
||||
break;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_FONTCONFIG
|
||||
if (index == 0) {
|
||||
int face_idx;
|
||||
ass_msg(font->library, MSGL_INFO,
|
||||
"Glyph 0x%X not found, selecting one more "
|
||||
"font for (%s, %d, %d)", ch, font->desc.family,
|
||||
font->desc.bold, font->desc.italic);
|
||||
face_idx = add_face(fontconfig_priv, font, ch);
|
||||
if (face_idx >= 0) {
|
||||
face = font->faces[face_idx];
|
||||
index = FT_Get_Char_Index(face, ch);
|
||||
if (index == 0) {
|
||||
ass_msg(font->library, MSGL_ERR,
|
||||
"Glyph 0x%X not found in font for (%s, %d, %d)",
|
||||
ch, font->desc.family, font->desc.bold,
|
||||
font->desc.italic);
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
switch (hinting) {
|
||||
case ASS_HINTING_NONE:
|
||||
flags = FT_LOAD_NO_HINTING;
|
||||
break;
|
||||
case ASS_HINTING_LIGHT:
|
||||
flags = FT_LOAD_FORCE_AUTOHINT | FT_LOAD_TARGET_LIGHT;
|
||||
break;
|
||||
case ASS_HINTING_NORMAL:
|
||||
flags = FT_LOAD_FORCE_AUTOHINT;
|
||||
break;
|
||||
case ASS_HINTING_NATIVE:
|
||||
flags = 0;
|
||||
break;
|
||||
}
|
||||
|
||||
error = FT_Load_Glyph(face, index, FT_LOAD_NO_BITMAP | flags);
|
||||
if (error) {
|
||||
ass_msg(font->library, MSGL_WARN, "Error loading glyph, index %d",
|
||||
index);
|
||||
return 0;
|
||||
}
|
||||
if (!(face->style_flags & FT_STYLE_FLAG_ITALIC) &&
|
||||
(font->desc.italic > 55)) {
|
||||
FT_GlyphSlot_Oblique(face->glyph);
|
||||
}
|
||||
|
||||
if (!(face->style_flags & FT_STYLE_FLAG_BOLD) &&
|
||||
(font->desc.bold > 80)) {
|
||||
ass_glyph_embolden(face->glyph);
|
||||
}
|
||||
error = FT_Get_Glyph(face->glyph, &glyph);
|
||||
if (error) {
|
||||
ass_msg(font->library, MSGL_WARN, "Error loading glyph, index %d",
|
||||
index);
|
||||
return 0;
|
||||
}
|
||||
|
||||
ass_strike_outline_glyph(face, font, glyph, deco & DECO_UNDERLINE,
|
||||
deco & DECO_STRIKETHROUGH);
|
||||
|
||||
return glyph;
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Get kerning for the pair of glyphs.
|
||||
**/
|
||||
FT_Vector ass_font_get_kerning(ASS_Font *font, uint32_t c1, uint32_t c2)
|
||||
{
|
||||
FT_Vector v = { 0, 0 };
|
||||
int i;
|
||||
|
||||
for (i = 0; i < font->n_faces; ++i) {
|
||||
FT_Face face = font->faces[i];
|
||||
int i1 = FT_Get_Char_Index(face, c1);
|
||||
int i2 = FT_Get_Char_Index(face, c2);
|
||||
if (i1 && i2) {
|
||||
if (FT_HAS_KERNING(face))
|
||||
FT_Get_Kerning(face, i1, i2, FT_KERNING_DEFAULT, &v);
|
||||
return v;
|
||||
}
|
||||
if (i1 || i2) // these glyphs are from different font faces, no kerning information
|
||||
return v;
|
||||
}
|
||||
return v;
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Deallocate ASS_Font
|
||||
**/
|
||||
void ass_font_free(ASS_Font *font)
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < font->n_faces; ++i)
|
||||
if (font->faces[i])
|
||||
FT_Done_Face(font->faces[i]);
|
||||
if (font->desc.family)
|
||||
free(font->desc.family);
|
||||
free(font);
|
||||
}
|
|
@ -1,66 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
|
||||
*
|
||||
* This file is part of libass.
|
||||
*
|
||||
* libass 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.
|
||||
*
|
||||
* libass 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 libass; if not, write to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#ifndef LIBASS_FONT_H
|
||||
#define LIBASS_FONT_H
|
||||
|
||||
#include <stdint.h>
|
||||
#include <ft2build.h>
|
||||
#include FT_GLYPH_H
|
||||
#include "ass.h"
|
||||
#include "ass_types.h"
|
||||
|
||||
#define ASS_FONT_MAX_FACES 10
|
||||
#define DECO_UNDERLINE 1
|
||||
#define DECO_STRIKETHROUGH 2
|
||||
|
||||
typedef struct {
|
||||
char *family;
|
||||
unsigned bold;
|
||||
unsigned italic;
|
||||
int treat_family_as_pattern;
|
||||
} ASS_FontDesc;
|
||||
|
||||
typedef struct {
|
||||
ASS_FontDesc desc;
|
||||
ASS_Library *library;
|
||||
FT_Library ftlibrary;
|
||||
FT_Face faces[ASS_FONT_MAX_FACES];
|
||||
int n_faces;
|
||||
double scale_x, scale_y; // current transform
|
||||
FT_Vector v; // current shift
|
||||
double size;
|
||||
} ASS_Font;
|
||||
|
||||
// FIXME: passing the hashmap via a void pointer is very ugly.
|
||||
ASS_Font *ass_font_new(void *font_cache, ASS_Library *library,
|
||||
FT_Library ftlibrary, void *fc_priv,
|
||||
ASS_FontDesc *desc);
|
||||
void ass_font_set_transform(ASS_Font *font, double scale_x,
|
||||
double scale_y, FT_Vector *v);
|
||||
void ass_font_set_size(ASS_Font *font, double size);
|
||||
void ass_font_get_asc_desc(ASS_Font *font, uint32_t ch, int *asc,
|
||||
int *desc);
|
||||
FT_Glyph ass_font_get_glyph(void *fontconfig_priv, ASS_Font *font,
|
||||
uint32_t ch, ASS_Hinting hinting, int flags);
|
||||
FT_Vector ass_font_get_kerning(ASS_Font *font, uint32_t c1, uint32_t c2);
|
||||
void ass_font_free(ASS_Font *font);
|
||||
|
||||
#endif /* LIBASS_FONT_H */
|
|
@ -1,461 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
|
||||
*
|
||||
* This file is part of libass.
|
||||
*
|
||||
* libass 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.
|
||||
*
|
||||
* libass 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 libass; if not, write to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <assert.h>
|
||||
#include <string.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#include <inttypes.h>
|
||||
#include <ft2build.h>
|
||||
#include FT_FREETYPE_H
|
||||
|
||||
#include "ass_utils.h"
|
||||
#include "ass.h"
|
||||
#include "ass_library.h"
|
||||
#include "ass_fontconfig.h"
|
||||
|
||||
#ifdef CONFIG_FONTCONFIG
|
||||
#include <fontconfig/fontconfig.h>
|
||||
#include <fontconfig/fcfreetype.h>
|
||||
#endif
|
||||
|
||||
struct fc_instance {
|
||||
#ifdef CONFIG_FONTCONFIG
|
||||
FcConfig *config;
|
||||
#endif
|
||||
char *family_default;
|
||||
char *path_default;
|
||||
int index_default;
|
||||
};
|
||||
|
||||
#ifdef CONFIG_FONTCONFIG
|
||||
|
||||
/**
|
||||
* \brief Low-level font selection.
|
||||
* \param priv private data
|
||||
* \param family font family
|
||||
* \param treat_family_as_pattern treat family as fontconfig pattern
|
||||
* \param bold font weight value
|
||||
* \param italic font slant value
|
||||
* \param index out: font index inside a file
|
||||
* \param code: the character that should be present in the font, can be 0
|
||||
* \return font file path
|
||||
*/
|
||||
static char *_select_font(ASS_Library *library, FCInstance *priv,
|
||||
const char *family, int treat_family_as_pattern,
|
||||
unsigned bold, unsigned italic, int *index,
|
||||
uint32_t code)
|
||||
{
|
||||
FcBool rc;
|
||||
FcResult result;
|
||||
FcPattern *pat = NULL, *rpat = NULL;
|
||||
int r_index, r_slant, r_weight;
|
||||
FcChar8 *r_family, *r_style, *r_file, *r_fullname;
|
||||
FcBool r_outline, r_embolden;
|
||||
FcCharSet *r_charset;
|
||||
FcFontSet *fset = NULL;
|
||||
int curf;
|
||||
char *retval = NULL;
|
||||
int family_cnt = 0;
|
||||
|
||||
*index = 0;
|
||||
|
||||
if (treat_family_as_pattern)
|
||||
pat = FcNameParse((const FcChar8 *) family);
|
||||
else
|
||||
pat = FcPatternCreate();
|
||||
|
||||
if (!pat)
|
||||
goto error;
|
||||
|
||||
if (!treat_family_as_pattern) {
|
||||
FcPatternAddString(pat, FC_FAMILY, (const FcChar8 *) family);
|
||||
|
||||
// In SSA/ASS fonts are sometimes referenced by their "full name",
|
||||
// which is usually a concatenation of family name and font
|
||||
// style (ex. Ottawa Bold). Full name is available from
|
||||
// FontConfig pattern element FC_FULLNAME, but it is never
|
||||
// used for font matching.
|
||||
// Therefore, I'm removing words from the end of the name one
|
||||
// by one, and adding shortened names to the pattern. It seems
|
||||
// that the first value (full name in this case) has
|
||||
// precedence in matching.
|
||||
// An alternative approach could be to reimplement FcFontSort
|
||||
// using FC_FULLNAME instead of FC_FAMILY.
|
||||
family_cnt = 1;
|
||||
{
|
||||
char *s = strdup(family);
|
||||
char *p = s + strlen(s);
|
||||
while (--p > s)
|
||||
if (*p == ' ' || *p == '-') {
|
||||
*p = '\0';
|
||||
FcPatternAddString(pat, FC_FAMILY, (const FcChar8 *) s);
|
||||
++family_cnt;
|
||||
}
|
||||
free(s);
|
||||
}
|
||||
}
|
||||
FcPatternAddBool(pat, FC_OUTLINE, FcTrue);
|
||||
FcPatternAddInteger(pat, FC_SLANT, italic);
|
||||
FcPatternAddInteger(pat, FC_WEIGHT, bold);
|
||||
|
||||
FcDefaultSubstitute(pat);
|
||||
|
||||
rc = FcConfigSubstitute(priv->config, pat, FcMatchPattern);
|
||||
if (!rc)
|
||||
goto error;
|
||||
|
||||
fset = FcFontSort(priv->config, pat, FcTrue, NULL, &result);
|
||||
if (!fset)
|
||||
goto error;
|
||||
|
||||
for (curf = 0; curf < fset->nfont; ++curf) {
|
||||
FcPattern *curp = fset->fonts[curf];
|
||||
|
||||
result = FcPatternGetBool(curp, FC_OUTLINE, 0, &r_outline);
|
||||
if (result != FcResultMatch)
|
||||
continue;
|
||||
if (r_outline != FcTrue)
|
||||
continue;
|
||||
if (!code)
|
||||
break;
|
||||
result = FcPatternGetCharSet(curp, FC_CHARSET, 0, &r_charset);
|
||||
if (result != FcResultMatch)
|
||||
continue;
|
||||
if (FcCharSetHasChar(r_charset, code))
|
||||
break;
|
||||
}
|
||||
|
||||
if (curf >= fset->nfont)
|
||||
goto error;
|
||||
|
||||
if (!treat_family_as_pattern) {
|
||||
// Remove all extra family names from original pattern.
|
||||
// After this, FcFontRenderPrepare will select the most relevant family
|
||||
// name in case there are more than one of them.
|
||||
for (; family_cnt > 1; --family_cnt)
|
||||
FcPatternRemove(pat, FC_FAMILY, family_cnt - 1);
|
||||
}
|
||||
|
||||
rpat = FcFontRenderPrepare(priv->config, pat, fset->fonts[curf]);
|
||||
if (!rpat)
|
||||
goto error;
|
||||
|
||||
result = FcPatternGetInteger(rpat, FC_INDEX, 0, &r_index);
|
||||
if (result != FcResultMatch)
|
||||
goto error;
|
||||
*index = r_index;
|
||||
|
||||
result = FcPatternGetString(rpat, FC_FILE, 0, &r_file);
|
||||
if (result != FcResultMatch)
|
||||
goto error;
|
||||
retval = strdup((const char *) r_file);
|
||||
|
||||
result = FcPatternGetString(rpat, FC_FAMILY, 0, &r_family);
|
||||
if (result != FcResultMatch)
|
||||
r_family = NULL;
|
||||
|
||||
result = FcPatternGetString(rpat, FC_FULLNAME, 0, &r_fullname);
|
||||
if (result != FcResultMatch)
|
||||
r_fullname = NULL;
|
||||
|
||||
if (!treat_family_as_pattern &&
|
||||
!(r_family && strcasecmp((const char *) r_family, family) == 0) &&
|
||||
!(r_fullname && strcasecmp((const char *) r_fullname, family) == 0))
|
||||
ass_msg(library, MSGL_WARN,
|
||||
"fontconfig: Selected font is not the requested one: "
|
||||
"'%s' != '%s'",
|
||||
(const char *) (r_fullname ? r_fullname : r_family), family);
|
||||
|
||||
result = FcPatternGetString(rpat, FC_STYLE, 0, &r_style);
|
||||
if (result != FcResultMatch)
|
||||
r_style = NULL;
|
||||
|
||||
result = FcPatternGetInteger(rpat, FC_SLANT, 0, &r_slant);
|
||||
if (result != FcResultMatch)
|
||||
r_slant = 0;
|
||||
|
||||
result = FcPatternGetInteger(rpat, FC_WEIGHT, 0, &r_weight);
|
||||
if (result != FcResultMatch)
|
||||
r_weight = 0;
|
||||
|
||||
result = FcPatternGetBool(rpat, FC_EMBOLDEN, 0, &r_embolden);
|
||||
if (result != FcResultMatch)
|
||||
r_embolden = 0;
|
||||
|
||||
ass_msg(library, MSGL_V,
|
||||
"Font info: family '%s', style '%s', fullname '%s',"
|
||||
" slant %d, weight %d%s", (const char *) r_family,
|
||||
(const char *) r_style, (const char *) r_fullname, r_slant,
|
||||
r_weight, r_embolden ? ", embolden" : "");
|
||||
|
||||
error:
|
||||
if (pat)
|
||||
FcPatternDestroy(pat);
|
||||
if (rpat)
|
||||
FcPatternDestroy(rpat);
|
||||
if (fset)
|
||||
FcFontSetDestroy(fset);
|
||||
return retval;
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Find a font. Use default family or path if necessary.
|
||||
* \param priv_ private data
|
||||
* \param family font family
|
||||
* \param treat_family_as_pattern treat family as fontconfig pattern
|
||||
* \param bold font weight value
|
||||
* \param italic font slant value
|
||||
* \param index out: font index inside a file
|
||||
* \param code: the character that should be present in the font, can be 0
|
||||
* \return font file path
|
||||
*/
|
||||
char *fontconfig_select(ASS_Library *library, FCInstance *priv,
|
||||
const char *family, int treat_family_as_pattern,
|
||||
unsigned bold, unsigned italic, int *index,
|
||||
uint32_t code)
|
||||
{
|
||||
char *res = 0;
|
||||
if (!priv->config) {
|
||||
*index = priv->index_default;
|
||||
res = priv->path_default ? strdup(priv->path_default) : 0;
|
||||
return res;
|
||||
}
|
||||
if (family && *family)
|
||||
res =
|
||||
_select_font(library, priv, family, treat_family_as_pattern,
|
||||
bold, italic, index, code);
|
||||
if (!res && priv->family_default) {
|
||||
res =
|
||||
_select_font(library, priv, priv->family_default, 0, bold,
|
||||
italic, index, code);
|
||||
if (res)
|
||||
ass_msg(library, MSGL_WARN, "fontconfig_select: Using default "
|
||||
"font family: (%s, %d, %d) -> %s, %d",
|
||||
family, bold, italic, res, *index);
|
||||
}
|
||||
if (!res && priv->path_default) {
|
||||
res = strdup(priv->path_default);
|
||||
*index = priv->index_default;
|
||||
ass_msg(library, MSGL_WARN, "fontconfig_select: Using default font: "
|
||||
"(%s, %d, %d) -> %s, %d", family, bold, italic,
|
||||
res, *index);
|
||||
}
|
||||
if (!res) {
|
||||
res = _select_font(library, priv, "Arial", 0, bold, italic,
|
||||
index, code);
|
||||
if (res)
|
||||
ass_msg(library, MSGL_WARN, "fontconfig_select: Using 'Arial' "
|
||||
"font family: (%s, %d, %d) -> %s, %d", family, bold,
|
||||
italic, res, *index);
|
||||
}
|
||||
if (res)
|
||||
ass_msg(library, MSGL_V,
|
||||
"fontconfig_select: (%s, %d, %d) -> %s, %d", family, bold,
|
||||
italic, res, *index);
|
||||
return res;
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Process memory font.
|
||||
* \param priv private data
|
||||
* \param library library object
|
||||
* \param ftlibrary freetype library object
|
||||
* \param idx index of the processed font in library->fontdata
|
||||
* With FontConfig >= 2.4.2, builds a font pattern in memory via FT_New_Memory_Face/FcFreeTypeQueryFace.
|
||||
* With older FontConfig versions, save the font to ~/.mplayer/fonts.
|
||||
*/
|
||||
static void process_fontdata(FCInstance *priv, ASS_Library *library,
|
||||
FT_Library ftlibrary, int idx)
|
||||
{
|
||||
int rc;
|
||||
const char *name = library->fontdata[idx].name;
|
||||
const char *data = library->fontdata[idx].data;
|
||||
int data_size = library->fontdata[idx].size;
|
||||
|
||||
FT_Face face;
|
||||
FcPattern *pattern;
|
||||
FcFontSet *fset;
|
||||
FcBool res;
|
||||
int face_index, num_faces = 1;
|
||||
|
||||
for (face_index = 0; face_index < num_faces; ++face_index) {
|
||||
rc = FT_New_Memory_Face(ftlibrary, (unsigned char *) data,
|
||||
data_size, face_index, &face);
|
||||
if (rc) {
|
||||
ass_msg(library, MSGL_WARN, "Error opening memory font: %s",
|
||||
name);
|
||||
return;
|
||||
}
|
||||
num_faces = face->num_faces;
|
||||
|
||||
pattern =
|
||||
FcFreeTypeQueryFace(face, (unsigned char *) name, 0,
|
||||
FcConfigGetBlanks(priv->config));
|
||||
if (!pattern) {
|
||||
ass_msg(library, MSGL_WARN, "%s failed", "FcFreeTypeQueryFace");
|
||||
FT_Done_Face(face);
|
||||
return;
|
||||
}
|
||||
|
||||
fset = FcConfigGetFonts(priv->config, FcSetSystem); // somehow it failes when asked for FcSetApplication
|
||||
if (!fset) {
|
||||
ass_msg(library, MSGL_WARN, "%s failed", "FcConfigGetFonts");
|
||||
FT_Done_Face(face);
|
||||
return;
|
||||
}
|
||||
|
||||
res = FcFontSetAdd(fset, pattern);
|
||||
if (!res) {
|
||||
ass_msg(library, MSGL_WARN, "%s failed", "FcFontSetAdd");
|
||||
FT_Done_Face(face);
|
||||
return;
|
||||
}
|
||||
|
||||
FT_Done_Face(face);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Init fontconfig.
|
||||
* \param library libass library object
|
||||
* \param ftlibrary freetype library object
|
||||
* \param family default font family
|
||||
* \param path default font path
|
||||
* \param fc whether fontconfig should be used
|
||||
* \param config path to a fontconfig configuration file, or NULL
|
||||
* \param update whether the fontconfig cache should be built/updated
|
||||
* \return pointer to fontconfig private data
|
||||
*/
|
||||
FCInstance *fontconfig_init(ASS_Library *library,
|
||||
FT_Library ftlibrary, const char *family,
|
||||
const char *path, int fc, const char *config,
|
||||
int update)
|
||||
{
|
||||
int rc;
|
||||
FCInstance *priv = calloc(1, sizeof(FCInstance));
|
||||
const char *dir = library->fonts_dir;
|
||||
int i;
|
||||
|
||||
if (!fc) {
|
||||
ass_msg(library, MSGL_WARN,
|
||||
"Fontconfig disabled, only default font will be used.");
|
||||
goto exit;
|
||||
}
|
||||
|
||||
priv->config = FcConfigCreate();
|
||||
rc = FcConfigParseAndLoad(priv->config, (unsigned char *) config, FcTrue);
|
||||
if (!rc) {
|
||||
ass_msg(library, MSGL_WARN, "No usable fontconfig configuration "
|
||||
"file found, using fallback.");
|
||||
FcConfigDestroy(priv->config);
|
||||
priv->config = FcInitLoadConfig();
|
||||
rc++;
|
||||
}
|
||||
if (rc && update) {
|
||||
FcConfigBuildFonts(priv->config);
|
||||
}
|
||||
|
||||
if (!rc || !priv->config) {
|
||||
ass_msg(library, MSGL_FATAL,
|
||||
"No valid fontconfig configuration found!");
|
||||
FcConfigDestroy(priv->config);
|
||||
goto exit;
|
||||
}
|
||||
|
||||
for (i = 0; i < library->num_fontdata; ++i)
|
||||
process_fontdata(priv, library, ftlibrary, i);
|
||||
|
||||
if (dir) {
|
||||
ass_msg(library, MSGL_INFO, "Updating font cache");
|
||||
|
||||
rc = FcConfigAppFontAddDir(priv->config, (const FcChar8 *) dir);
|
||||
if (!rc) {
|
||||
ass_msg(library, MSGL_WARN, "%s failed", "FcConfigAppFontAddDir");
|
||||
}
|
||||
}
|
||||
|
||||
priv->family_default = family ? strdup(family) : NULL;
|
||||
exit:
|
||||
priv->path_default = path ? strdup(path) : NULL;
|
||||
priv->index_default = 0;
|
||||
|
||||
return priv;
|
||||
}
|
||||
|
||||
int fontconfig_update(FCInstance *priv)
|
||||
{
|
||||
return FcConfigBuildFonts(priv->config);
|
||||
}
|
||||
|
||||
#else /* CONFIG_FONTCONFIG */
|
||||
|
||||
char *fontconfig_select(ASS_Library *library, FCInstance *priv,
|
||||
const char *family, int treat_family_as_pattern,
|
||||
unsigned bold, unsigned italic, int *index,
|
||||
uint32_t code)
|
||||
{
|
||||
*index = priv->index_default;
|
||||
char* res = priv->path_default ? strdup(priv->path_default) : 0;
|
||||
return res;
|
||||
}
|
||||
|
||||
FCInstance *fontconfig_init(ASS_Library *library,
|
||||
FT_Library ftlibrary, const char *family,
|
||||
const char *path, int fc, const char *config,
|
||||
int update)
|
||||
{
|
||||
FCInstance *priv;
|
||||
|
||||
ass_msg(library, MSGL_WARN,
|
||||
"Fontconfig disabled, only default font will be used.");
|
||||
|
||||
priv = calloc(1, sizeof(FCInstance));
|
||||
|
||||
priv->path_default = path ? strdup(path) : 0;
|
||||
priv->index_default = 0;
|
||||
return priv;
|
||||
}
|
||||
|
||||
int fontconfig_update(FCInstance *priv)
|
||||
{
|
||||
// Do nothing
|
||||
return 1;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
void fontconfig_done(FCInstance *priv)
|
||||
{
|
||||
#ifdef CONFIG_FONTCONFIG
|
||||
if (priv && priv->config)
|
||||
FcConfigDestroy(priv->config);
|
||||
#endif
|
||||
if (priv && priv->path_default)
|
||||
free(priv->path_default);
|
||||
if (priv && priv->family_default)
|
||||
free(priv->family_default);
|
||||
if (priv)
|
||||
free(priv);
|
||||
}
|
|
@ -1,47 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
|
||||
*
|
||||
* This file is part of libass.
|
||||
*
|
||||
* libass 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.
|
||||
*
|
||||
* libass 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 libass; if not, write to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#ifndef LIBASS_FONTCONFIG_H
|
||||
#define LIBASS_FONTCONFIG_H
|
||||
|
||||
#include <stdint.h>
|
||||
#include "ass_types.h"
|
||||
#include "ass.h"
|
||||
#include <ft2build.h>
|
||||
#include FT_FREETYPE_H
|
||||
|
||||
#ifdef CONFIG_FONTCONFIG
|
||||
#include <fontconfig/fontconfig.h>
|
||||
#endif
|
||||
|
||||
typedef struct fc_instance FCInstance;
|
||||
|
||||
FCInstance *fontconfig_init(ASS_Library *library,
|
||||
FT_Library ftlibrary, const char *family,
|
||||
const char *path, int fc, const char *config,
|
||||
int update);
|
||||
char *fontconfig_select(ASS_Library *library, FCInstance *priv,
|
||||
const char *family, int treat_family_as_pattern,
|
||||
unsigned bold, unsigned italic, int *index,
|
||||
uint32_t code);
|
||||
void fontconfig_done(FCInstance *priv);
|
||||
int fontconfig_update(FCInstance *priv);
|
||||
|
||||
#endif /* LIBASS_FONTCONFIG_H */
|
|
@ -1,147 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
|
||||
*
|
||||
* This file is part of libass.
|
||||
*
|
||||
* libass 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.
|
||||
*
|
||||
* libass 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 libass; if not, write to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#include <inttypes.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <stdarg.h>
|
||||
|
||||
#include "ass.h"
|
||||
#include "ass_library.h"
|
||||
#include "ass_utils.h"
|
||||
|
||||
static void ass_msg_handler(int level, const char *fmt, va_list va, void *data)
|
||||
{
|
||||
if (level > MSGL_INFO)
|
||||
return;
|
||||
fprintf(stderr, "[ass] ");
|
||||
vfprintf(stderr, fmt, va);
|
||||
fprintf(stderr, "\n");
|
||||
}
|
||||
|
||||
ASS_Library *ass_library_init(void)
|
||||
{
|
||||
ASS_Library* lib = calloc(1, sizeof(*lib));
|
||||
lib->msg_callback = ass_msg_handler;
|
||||
|
||||
return lib;
|
||||
}
|
||||
|
||||
void ass_library_done(ASS_Library *priv)
|
||||
{
|
||||
if (priv) {
|
||||
ass_set_fonts_dir(priv, NULL);
|
||||
ass_set_style_overrides(priv, NULL);
|
||||
ass_clear_fonts(priv);
|
||||
free(priv);
|
||||
}
|
||||
}
|
||||
|
||||
void ass_set_fonts_dir(ASS_Library *priv, const char *fonts_dir)
|
||||
{
|
||||
if (priv->fonts_dir)
|
||||
free(priv->fonts_dir);
|
||||
|
||||
priv->fonts_dir = fonts_dir ? strdup(fonts_dir) : 0;
|
||||
}
|
||||
|
||||
void ass_set_extract_fonts(ASS_Library *priv, int extract)
|
||||
{
|
||||
priv->extract_fonts = !!extract;
|
||||
}
|
||||
|
||||
void ass_set_style_overrides(ASS_Library *priv, char **list)
|
||||
{
|
||||
char **p;
|
||||
char **q;
|
||||
int cnt;
|
||||
|
||||
if (priv->style_overrides) {
|
||||
for (p = priv->style_overrides; *p; ++p)
|
||||
free(*p);
|
||||
free(priv->style_overrides);
|
||||
}
|
||||
|
||||
if (!list)
|
||||
return;
|
||||
|
||||
for (p = list, cnt = 0; *p; ++p, ++cnt) {
|
||||
}
|
||||
|
||||
priv->style_overrides = malloc((cnt + 1) * sizeof(char *));
|
||||
for (p = list, q = priv->style_overrides; *p; ++p, ++q)
|
||||
*q = strdup(*p);
|
||||
priv->style_overrides[cnt] = NULL;
|
||||
}
|
||||
|
||||
static void grow_array(void **array, int nelem, size_t elsize)
|
||||
{
|
||||
if (!(nelem & 31))
|
||||
*array = realloc(*array, (nelem + 32) * elsize);
|
||||
}
|
||||
|
||||
void ass_add_font(ASS_Library *priv, char *name, char *data, int size)
|
||||
{
|
||||
int idx = priv->num_fontdata;
|
||||
if (!name || !data || !size)
|
||||
return;
|
||||
grow_array((void **) &priv->fontdata, priv->num_fontdata,
|
||||
sizeof(*priv->fontdata));
|
||||
|
||||
priv->fontdata[idx].name = strdup(name);
|
||||
|
||||
priv->fontdata[idx].data = malloc(size);
|
||||
memcpy(priv->fontdata[idx].data, data, size);
|
||||
|
||||
priv->fontdata[idx].size = size;
|
||||
|
||||
priv->num_fontdata++;
|
||||
}
|
||||
|
||||
void ass_clear_fonts(ASS_Library *priv)
|
||||
{
|
||||
int i;
|
||||
for (i = 0; i < priv->num_fontdata; ++i) {
|
||||
free(priv->fontdata[i].name);
|
||||
free(priv->fontdata[i].data);
|
||||
}
|
||||
free(priv->fontdata);
|
||||
priv->fontdata = NULL;
|
||||
priv->num_fontdata = 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Register a message callback function with libass. Without setting one,
|
||||
* a default handler is used which prints everything with MSGL_INFO or
|
||||
* higher to the standard output.
|
||||
*
|
||||
* \param msg_cb the callback function
|
||||
* \param data additional data that will be passed to the callback
|
||||
*/
|
||||
void ass_set_message_cb(ASS_Library *priv,
|
||||
void (*msg_cb)(int, const char *, va_list, void *),
|
||||
void *data)
|
||||
{
|
||||
if (msg_cb) {
|
||||
priv->msg_callback = msg_cb;
|
||||
priv->msg_callback_data = data;
|
||||
}
|
||||
}
|
|
@ -1,43 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
|
||||
*
|
||||
* This file is part of libass.
|
||||
*
|
||||
* libass 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.
|
||||
*
|
||||
* libass 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 libass; if not, write to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#ifndef LIBASS_LIBRARY_H
|
||||
#define LIBASS_LIBRARY_H
|
||||
|
||||
#include <stdarg.h>
|
||||
|
||||
typedef struct {
|
||||
char *name;
|
||||
char *data;
|
||||
int size;
|
||||
} ASS_Fontdata;
|
||||
|
||||
struct ass_library {
|
||||
char *fonts_dir;
|
||||
int extract_fonts;
|
||||
char **style_overrides;
|
||||
|
||||
ASS_Fontdata *fontdata;
|
||||
int num_fontdata;
|
||||
void (*msg_callback)(int, const char *, va_list, void *);
|
||||
void *msg_callback_data;
|
||||
};
|
||||
|
||||
#endif /* LIBASS_LIBRARY_H */
|
|
@ -1,926 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2009 Grigori Goronzy <greg@geekmind.org>
|
||||
*
|
||||
* This file is part of libass.
|
||||
*
|
||||
* Permission to use, copy, modify, and distribute this software for any
|
||||
* purpose with or without fee is hereby granted, provided that the above
|
||||
* copyright notice and this permission notice appear in all copies.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <math.h>
|
||||
|
||||
#include "ass_render.h"
|
||||
#include "ass_parse.h"
|
||||
|
||||
#define MAX_BE 127
|
||||
#define NBSP 0xa0 // unicode non-breaking space character
|
||||
|
||||
#define skip_to(x) while ((*p != (x)) && (*p != '}') && (*p != 0)) { ++p;}
|
||||
#define skip(x) if (*p == (x)) ++p; else { return p; }
|
||||
#define skipopt(x) if (*p == (x)) { ++p; }
|
||||
|
||||
/**
|
||||
* \brief Check if starting part of (*p) matches sample.
|
||||
* If true, shift p to the first symbol after the matching part.
|
||||
*/
|
||||
static inline int mystrcmp(char **p, const char *sample)
|
||||
{
|
||||
int len = strlen(sample);
|
||||
if (strncmp(*p, sample, len) == 0) {
|
||||
(*p) += len;
|
||||
return 1;
|
||||
} else
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void change_font_size(ASS_Renderer *render_priv, double sz)
|
||||
{
|
||||
double size = sz * render_priv->font_scale;
|
||||
|
||||
if (size < 1)
|
||||
size = 1;
|
||||
else if (size > render_priv->height * 2)
|
||||
size = render_priv->height * 2;
|
||||
|
||||
ass_font_set_size(render_priv->state.font, size);
|
||||
|
||||
render_priv->state.font_size = sz;
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Change current font, using setting from render_priv->state.
|
||||
*/
|
||||
void update_font(ASS_Renderer *render_priv)
|
||||
{
|
||||
unsigned val;
|
||||
ASS_FontDesc desc;
|
||||
desc.family = strdup(render_priv->state.family);
|
||||
desc.treat_family_as_pattern =
|
||||
render_priv->state.treat_family_as_pattern;
|
||||
|
||||
val = render_priv->state.bold;
|
||||
// 0 = normal, 1 = bold, >1 = exact weight
|
||||
if (val == 1 || val == -1)
|
||||
val = 200; // bold
|
||||
else if (val <= 0)
|
||||
val = 80; // normal
|
||||
desc.bold = val;
|
||||
|
||||
val = render_priv->state.italic;
|
||||
if (val == 1 || val == -1)
|
||||
val = 110; // italic
|
||||
else if (val <= 0)
|
||||
val = 0; // normal
|
||||
desc.italic = val;
|
||||
|
||||
render_priv->state.font =
|
||||
ass_font_new(render_priv->cache.font_cache, render_priv->library,
|
||||
render_priv->ftlibrary, render_priv->fontconfig_priv,
|
||||
&desc);
|
||||
free(desc.family);
|
||||
|
||||
if (render_priv->state.font)
|
||||
change_font_size(render_priv, render_priv->state.font_size);
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Change border width
|
||||
* negative value resets border to style value
|
||||
*/
|
||||
void change_border(ASS_Renderer *render_priv, double border_x,
|
||||
double border_y)
|
||||
{
|
||||
int bord;
|
||||
if (!render_priv->state.font)
|
||||
return;
|
||||
|
||||
if (border_x < 0 && border_y < 0) {
|
||||
if (render_priv->state.style->BorderStyle == 1 ||
|
||||
render_priv->state.style->BorderStyle == 3)
|
||||
border_x = border_y = render_priv->state.style->Outline;
|
||||
else
|
||||
border_x = border_y = 1.;
|
||||
}
|
||||
|
||||
render_priv->state.border_x = border_x;
|
||||
render_priv->state.border_y = border_y;
|
||||
|
||||
bord = 64 * border_x * render_priv->border_scale;
|
||||
if (bord > 0 && border_x == border_y) {
|
||||
if (!render_priv->state.stroker) {
|
||||
int error;
|
||||
error =
|
||||
FT_Stroker_New(render_priv->ftlibrary,
|
||||
&render_priv->state.stroker);
|
||||
if (error) {
|
||||
ass_msg(render_priv->library, MSGL_V,
|
||||
"failed to get stroker");
|
||||
render_priv->state.stroker = 0;
|
||||
}
|
||||
}
|
||||
if (render_priv->state.stroker)
|
||||
FT_Stroker_Set(render_priv->state.stroker, bord,
|
||||
FT_STROKER_LINECAP_ROUND,
|
||||
FT_STROKER_LINEJOIN_ROUND, 0);
|
||||
} else {
|
||||
FT_Stroker_Done(render_priv->state.stroker);
|
||||
render_priv->state.stroker = 0;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Calculate a weighted average of two colors
|
||||
* calculates c1*(1-a) + c2*a, but separately for each component except alpha
|
||||
*/
|
||||
static void change_color(uint32_t *var, uint32_t new, double pwr)
|
||||
{
|
||||
(*var) = ((uint32_t) (_r(*var) * (1 - pwr) + _r(new) * pwr) << 24) +
|
||||
((uint32_t) (_g(*var) * (1 - pwr) + _g(new) * pwr) << 16) +
|
||||
((uint32_t) (_b(*var) * (1 - pwr) + _b(new) * pwr) << 8) + _a(*var);
|
||||
}
|
||||
|
||||
// like change_color, but for alpha component only
|
||||
inline void change_alpha(uint32_t *var, uint32_t new, double pwr)
|
||||
{
|
||||
*var =
|
||||
(_r(*var) << 24) + (_g(*var) << 16) + (_b(*var) << 8) +
|
||||
(uint32_t) (_a(*var) * (1 - pwr) + _a(new) * pwr);
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Multiply two alpha values
|
||||
* \param a first value
|
||||
* \param b second value
|
||||
* \return result of multiplication
|
||||
* Parameters and result are limited by 0xFF.
|
||||
*/
|
||||
inline uint32_t mult_alpha(uint32_t a, uint32_t b)
|
||||
{
|
||||
return 0xFF - (0xFF - a) * (0xFF - b) / 0xFF;
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Calculate alpha value by piecewise linear function
|
||||
* Used for \fad, \fade implementation.
|
||||
*/
|
||||
static unsigned
|
||||
interpolate_alpha(long long now, long long t1, long long t2, long long t3,
|
||||
long long t4, unsigned a1, unsigned a2, unsigned a3)
|
||||
{
|
||||
unsigned a;
|
||||
double cf;
|
||||
if (now <= t1) {
|
||||
a = a1;
|
||||
} else if (now >= t4) {
|
||||
a = a3;
|
||||
} else if (now < t2) { // and > t1
|
||||
cf = ((double) (now - t1)) / (t2 - t1);
|
||||
a = a1 * (1 - cf) + a2 * cf;
|
||||
} else if (now > t3) {
|
||||
cf = ((double) (now - t3)) / (t4 - t3);
|
||||
a = a2 * (1 - cf) + a3 * cf;
|
||||
} else { // t2 <= now <= t3
|
||||
a = a2;
|
||||
}
|
||||
|
||||
return a;
|
||||
}
|
||||
|
||||
/**
|
||||
* Parse a vector clip into an outline, using the proper scaling
|
||||
* parameters. Translate it to correct for screen borders, if needed.
|
||||
*/
|
||||
static char *parse_vector_clip(ASS_Renderer *render_priv, char *p)
|
||||
{
|
||||
int scale = 1;
|
||||
int res = 0;
|
||||
ASS_Drawing *drawing;
|
||||
|
||||
render_priv->state.clip_drawing = ass_drawing_new(
|
||||
render_priv->fontconfig_priv,
|
||||
render_priv->state.font,
|
||||
render_priv->settings.hinting,
|
||||
render_priv->ftlibrary);
|
||||
drawing = render_priv->state.clip_drawing;
|
||||
skipopt('(');
|
||||
res = mystrtoi(&p, &scale);
|
||||
skipopt(',')
|
||||
if (!res)
|
||||
scale = 1;
|
||||
drawing->scale = scale;
|
||||
drawing->scale_x = render_priv->font_scale_x * render_priv->font_scale;
|
||||
drawing->scale_y = render_priv->font_scale;
|
||||
while (*p != ')' && *p != '}' && p != 0)
|
||||
ass_drawing_add_char(drawing, *p++);
|
||||
skipopt(')');
|
||||
if (ass_drawing_parse(drawing, 1)) {
|
||||
// We need to translate the clip according to screen borders
|
||||
if (render_priv->settings.left_margin != 0 ||
|
||||
render_priv->settings.top_margin != 0) {
|
||||
FT_Vector trans = {
|
||||
.x = int_to_d6(render_priv->settings.left_margin),
|
||||
.y = -int_to_d6(render_priv->settings.top_margin),
|
||||
};
|
||||
FT_Outline_Translate(&drawing->glyph->outline, trans.x, trans.y);
|
||||
}
|
||||
ass_msg(render_priv->library, MSGL_DBG2,
|
||||
"Parsed vector clip: scale %d, scales (%f, %f) string [%s]\n",
|
||||
scale, drawing->scale_x, drawing->scale_y, drawing->text);
|
||||
}
|
||||
|
||||
return p;
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Parse style override tag.
|
||||
* \param p string to parse
|
||||
* \param pwr multiplier for some tag effects (comes from \t tags)
|
||||
*/
|
||||
static char *parse_tag(ASS_Renderer *render_priv, char *p, double pwr)
|
||||
{
|
||||
skip_to('\\');
|
||||
skip('\\');
|
||||
if ((*p == '}') || (*p == 0))
|
||||
return p;
|
||||
|
||||
// New tags introduced in vsfilter 2.39
|
||||
if (mystrcmp(&p, "xbord")) {
|
||||
double val;
|
||||
if (mystrtod(&p, &val))
|
||||
val = render_priv->state.border_x * (1 - pwr) + val * pwr;
|
||||
else
|
||||
val = -1.;
|
||||
change_border(render_priv, val, render_priv->state.border_y);
|
||||
} else if (mystrcmp(&p, "ybord")) {
|
||||
double val;
|
||||
if (mystrtod(&p, &val))
|
||||
val = render_priv->state.border_y * (1 - pwr) + val * pwr;
|
||||
else
|
||||
val = -1.;
|
||||
change_border(render_priv, render_priv->state.border_x, val);
|
||||
} else if (mystrcmp(&p, "xshad")) {
|
||||
double val;
|
||||
if (mystrtod(&p, &val))
|
||||
val = render_priv->state.shadow_x * (1 - pwr) + val * pwr;
|
||||
else
|
||||
val = 0.;
|
||||
render_priv->state.shadow_x = val;
|
||||
} else if (mystrcmp(&p, "yshad")) {
|
||||
double val;
|
||||
if (mystrtod(&p, &val))
|
||||
val = render_priv->state.shadow_y * (1 - pwr) + val * pwr;
|
||||
else
|
||||
val = 0.;
|
||||
render_priv->state.shadow_y = val;
|
||||
} else if (mystrcmp(&p, "fax")) {
|
||||
double val;
|
||||
if (mystrtod(&p, &val))
|
||||
render_priv->state.fax =
|
||||
val * pwr + render_priv->state.fax * (1 - pwr);
|
||||
else
|
||||
render_priv->state.fax = 0.;
|
||||
} else if (mystrcmp(&p, "fay")) {
|
||||
double val;
|
||||
if (mystrtod(&p, &val))
|
||||
render_priv->state.fay =
|
||||
val * pwr + render_priv->state.fay * (1 - pwr);
|
||||
else
|
||||
render_priv->state.fay = 0.;
|
||||
} else if (mystrcmp(&p, "iclip")) {
|
||||
int x0, y0, x1, y1;
|
||||
int res = 1;
|
||||
char *start = p;
|
||||
skipopt('(');
|
||||
res &= mystrtoi(&p, &x0);
|
||||
skipopt(',');
|
||||
res &= mystrtoi(&p, &y0);
|
||||
skipopt(',');
|
||||
res &= mystrtoi(&p, &x1);
|
||||
skipopt(',');
|
||||
res &= mystrtoi(&p, &y1);
|
||||
skipopt(')');
|
||||
if (res) {
|
||||
render_priv->state.clip_x0 =
|
||||
render_priv->state.clip_x0 * (1 - pwr) + x0 * pwr;
|
||||
render_priv->state.clip_x1 =
|
||||
render_priv->state.clip_x1 * (1 - pwr) + x1 * pwr;
|
||||
render_priv->state.clip_y0 =
|
||||
render_priv->state.clip_y0 * (1 - pwr) + y0 * pwr;
|
||||
render_priv->state.clip_y1 =
|
||||
render_priv->state.clip_y1 * (1 - pwr) + y1 * pwr;
|
||||
render_priv->state.clip_mode = 1;
|
||||
} else if (!render_priv->state.clip_drawing) {
|
||||
p = parse_vector_clip(render_priv, start);
|
||||
render_priv->state.clip_drawing_mode = 1;
|
||||
} else
|
||||
render_priv->state.clip_mode = 0;
|
||||
} else if (mystrcmp(&p, "blur")) {
|
||||
double val;
|
||||
if (mystrtod(&p, &val)) {
|
||||
val = render_priv->state.blur * (1 - pwr) + val * pwr;
|
||||
val = (val < 0) ? 0 : val;
|
||||
val = (val > BLUR_MAX_RADIUS) ? BLUR_MAX_RADIUS : val;
|
||||
render_priv->state.blur = val;
|
||||
} else
|
||||
render_priv->state.blur = 0.0;
|
||||
// ASS standard tags
|
||||
} else if (mystrcmp(&p, "fsc")) {
|
||||
char tp = *p++;
|
||||
double val;
|
||||
if (tp == 'x') {
|
||||
if (mystrtod(&p, &val)) {
|
||||
val /= 100;
|
||||
render_priv->state.scale_x =
|
||||
render_priv->state.scale_x * (1 - pwr) + val * pwr;
|
||||
} else
|
||||
render_priv->state.scale_x =
|
||||
render_priv->state.style->ScaleX;
|
||||
} else if (tp == 'y') {
|
||||
if (mystrtod(&p, &val)) {
|
||||
val /= 100;
|
||||
render_priv->state.scale_y =
|
||||
render_priv->state.scale_y * (1 - pwr) + val * pwr;
|
||||
} else
|
||||
render_priv->state.scale_y =
|
||||
render_priv->state.style->ScaleY;
|
||||
}
|
||||
} else if (mystrcmp(&p, "fsp")) {
|
||||
double val;
|
||||
if (mystrtod(&p, &val))
|
||||
render_priv->state.hspacing =
|
||||
render_priv->state.hspacing * (1 - pwr) + val * pwr;
|
||||
else
|
||||
render_priv->state.hspacing = render_priv->state.style->Spacing;
|
||||
} else if (mystrcmp(&p, "fs")) {
|
||||
double val;
|
||||
if (mystrtod(&p, &val))
|
||||
val = render_priv->state.font_size * (1 - pwr) + val * pwr;
|
||||
else
|
||||
val = render_priv->state.style->FontSize;
|
||||
if (render_priv->state.font)
|
||||
change_font_size(render_priv, val);
|
||||
} else if (mystrcmp(&p, "bord")) {
|
||||
double val;
|
||||
if (mystrtod(&p, &val)) {
|
||||
if (render_priv->state.border_x == render_priv->state.border_y)
|
||||
val = render_priv->state.border_x * (1 - pwr) + val * pwr;
|
||||
} else
|
||||
val = -1.; // reset to default
|
||||
change_border(render_priv, val, val);
|
||||
} else if (mystrcmp(&p, "move")) {
|
||||
double x1, x2, y1, y2;
|
||||
long long t1, t2, delta_t, t;
|
||||
double x, y;
|
||||
double k;
|
||||
skip('(');
|
||||
mystrtod(&p, &x1);
|
||||
skip(',');
|
||||
mystrtod(&p, &y1);
|
||||
skip(',');
|
||||
mystrtod(&p, &x2);
|
||||
skip(',');
|
||||
mystrtod(&p, &y2);
|
||||
if (*p == ',') {
|
||||
skip(',');
|
||||
mystrtoll(&p, &t1);
|
||||
skip(',');
|
||||
mystrtoll(&p, &t2);
|
||||
ass_msg(render_priv->library, MSGL_DBG2,
|
||||
"movement6: (%f, %f) -> (%f, %f), (%" PRId64 " .. %"
|
||||
PRId64 ")\n", x1, y1, x2, y2, (int64_t) t1,
|
||||
(int64_t) t2);
|
||||
} else {
|
||||
t1 = 0;
|
||||
t2 = render_priv->state.event->Duration;
|
||||
ass_msg(render_priv->library, MSGL_DBG2,
|
||||
"movement: (%f, %f) -> (%f, %f)", x1, y1, x2, y2);
|
||||
}
|
||||
skip(')');
|
||||
delta_t = t2 - t1;
|
||||
t = render_priv->time - render_priv->state.event->Start;
|
||||
if (t < t1)
|
||||
k = 0.;
|
||||
else if (t > t2)
|
||||
k = 1.;
|
||||
else
|
||||
k = ((double) (t - t1)) / delta_t;
|
||||
x = k * (x2 - x1) + x1;
|
||||
y = k * (y2 - y1) + y1;
|
||||
if (render_priv->state.evt_type != EVENT_POSITIONED) {
|
||||
render_priv->state.pos_x = x;
|
||||
render_priv->state.pos_y = y;
|
||||
render_priv->state.detect_collisions = 0;
|
||||
render_priv->state.evt_type = EVENT_POSITIONED;
|
||||
}
|
||||
} else if (mystrcmp(&p, "frx")) {
|
||||
double val;
|
||||
if (mystrtod(&p, &val)) {
|
||||
val *= M_PI / 180;
|
||||
render_priv->state.frx =
|
||||
val * pwr + render_priv->state.frx * (1 - pwr);
|
||||
} else
|
||||
render_priv->state.frx = 0.;
|
||||
} else if (mystrcmp(&p, "fry")) {
|
||||
double val;
|
||||
if (mystrtod(&p, &val)) {
|
||||
val *= M_PI / 180;
|
||||
render_priv->state.fry =
|
||||
val * pwr + render_priv->state.fry * (1 - pwr);
|
||||
} else
|
||||
render_priv->state.fry = 0.;
|
||||
} else if (mystrcmp(&p, "frz") || mystrcmp(&p, "fr")) {
|
||||
double val;
|
||||
if (mystrtod(&p, &val)) {
|
||||
val *= M_PI / 180;
|
||||
render_priv->state.frz =
|
||||
val * pwr + render_priv->state.frz * (1 - pwr);
|
||||
} else
|
||||
render_priv->state.frz =
|
||||
M_PI * render_priv->state.style->Angle / 180.;
|
||||
} else if (mystrcmp(&p, "fn")) {
|
||||
char *start = p;
|
||||
char *family;
|
||||
skip_to('\\');
|
||||
if (p > start) {
|
||||
family = malloc(p - start + 1);
|
||||
strncpy(family, start, p - start);
|
||||
family[p - start] = '\0';
|
||||
} else
|
||||
family = strdup(render_priv->state.style->FontName);
|
||||
if (render_priv->state.family)
|
||||
free(render_priv->state.family);
|
||||
render_priv->state.family = family;
|
||||
update_font(render_priv);
|
||||
} else if (mystrcmp(&p, "alpha")) {
|
||||
uint32_t val;
|
||||
int i;
|
||||
int hex = render_priv->track->track_type == TRACK_TYPE_ASS;
|
||||
if (strtocolor(render_priv->library, &p, &val, hex)) {
|
||||
unsigned char a = val >> 24;
|
||||
for (i = 0; i < 4; ++i)
|
||||
change_alpha(&render_priv->state.c[i], a, pwr);
|
||||
} else {
|
||||
change_alpha(&render_priv->state.c[0],
|
||||
render_priv->state.style->PrimaryColour, pwr);
|
||||
change_alpha(&render_priv->state.c[1],
|
||||
render_priv->state.style->SecondaryColour, pwr);
|
||||
change_alpha(&render_priv->state.c[2],
|
||||
render_priv->state.style->OutlineColour, pwr);
|
||||
change_alpha(&render_priv->state.c[3],
|
||||
render_priv->state.style->BackColour, pwr);
|
||||
}
|
||||
// FIXME: simplify
|
||||
} else if (mystrcmp(&p, "an")) {
|
||||
int val;
|
||||
if (mystrtoi(&p, &val) && val) {
|
||||
int v = (val - 1) / 3; // 0, 1 or 2 for vertical alignment
|
||||
ass_msg(render_priv->library, MSGL_DBG2, "an %d", val);
|
||||
if (v != 0)
|
||||
v = 3 - v;
|
||||
val = ((val - 1) % 3) + 1; // horizontal alignment
|
||||
val += v * 4;
|
||||
ass_msg(render_priv->library, MSGL_DBG2, "align %d", val);
|
||||
render_priv->state.alignment = val;
|
||||
} else
|
||||
render_priv->state.alignment =
|
||||
render_priv->state.style->Alignment;
|
||||
} else if (mystrcmp(&p, "a")) {
|
||||
int val;
|
||||
if (mystrtoi(&p, &val) && val)
|
||||
// take care of a vsfilter quirk: handle illegal \a8 like \a5
|
||||
render_priv->state.alignment = (val == 8) ? 5 : val;
|
||||
else
|
||||
render_priv->state.alignment =
|
||||
render_priv->state.style->Alignment;
|
||||
} else if (mystrcmp(&p, "pos")) {
|
||||
double v1, v2;
|
||||
skip('(');
|
||||
mystrtod(&p, &v1);
|
||||
skip(',');
|
||||
mystrtod(&p, &v2);
|
||||
skip(')');
|
||||
ass_msg(render_priv->library, MSGL_DBG2, "pos(%f, %f)", v1, v2);
|
||||
if (render_priv->state.evt_type == EVENT_POSITIONED) {
|
||||
ass_msg(render_priv->library, MSGL_V, "Subtitle has a new \\pos "
|
||||
"after \\move or \\pos, ignoring");
|
||||
} else {
|
||||
render_priv->state.evt_type = EVENT_POSITIONED;
|
||||
render_priv->state.detect_collisions = 0;
|
||||
render_priv->state.pos_x = v1;
|
||||
render_priv->state.pos_y = v2;
|
||||
}
|
||||
} else if (mystrcmp(&p, "fad")) {
|
||||
int a1, a2, a3;
|
||||
long long t1, t2, t3, t4;
|
||||
if (*p == 'e')
|
||||
++p; // either \fad or \fade
|
||||
skip('(');
|
||||
mystrtoi(&p, &a1);
|
||||
skip(',');
|
||||
mystrtoi(&p, &a2);
|
||||
if (*p == ')') {
|
||||
// 2-argument version (\fad, according to specs)
|
||||
// a1 and a2 are fade-in and fade-out durations
|
||||
t1 = 0;
|
||||
t4 = render_priv->state.event->Duration;
|
||||
t2 = a1;
|
||||
t3 = t4 - a2;
|
||||
a1 = 0xFF;
|
||||
a2 = 0;
|
||||
a3 = 0xFF;
|
||||
} else {
|
||||
// 6-argument version (\fade)
|
||||
// a1 and a2 (and a3) are opacity values
|
||||
skip(',');
|
||||
mystrtoi(&p, &a3);
|
||||
skip(',');
|
||||
mystrtoll(&p, &t1);
|
||||
skip(',');
|
||||
mystrtoll(&p, &t2);
|
||||
skip(',');
|
||||
mystrtoll(&p, &t3);
|
||||
skip(',');
|
||||
mystrtoll(&p, &t4);
|
||||
}
|
||||
skip(')');
|
||||
render_priv->state.fade =
|
||||
interpolate_alpha(render_priv->time -
|
||||
render_priv->state.event->Start, t1, t2,
|
||||
t3, t4, a1, a2, a3);
|
||||
} else if (mystrcmp(&p, "org")) {
|
||||
int v1, v2;
|
||||
skip('(');
|
||||
mystrtoi(&p, &v1);
|
||||
skip(',');
|
||||
mystrtoi(&p, &v2);
|
||||
skip(')');
|
||||
ass_msg(render_priv->library, MSGL_DBG2, "org(%d, %d)", v1, v2);
|
||||
if (!render_priv->state.have_origin) {
|
||||
render_priv->state.org_x = v1;
|
||||
render_priv->state.org_y = v2;
|
||||
render_priv->state.have_origin = 1;
|
||||
render_priv->state.detect_collisions = 0;
|
||||
}
|
||||
} else if (mystrcmp(&p, "t")) {
|
||||
double v[3];
|
||||
int v1, v2;
|
||||
double v3;
|
||||
int cnt;
|
||||
long long t1, t2, t, delta_t;
|
||||
double k;
|
||||
skip('(');
|
||||
for (cnt = 0; cnt < 3; ++cnt) {
|
||||
if (*p == '\\')
|
||||
break;
|
||||
v[cnt] = strtod(p, &p);
|
||||
skip(',');
|
||||
}
|
||||
if (cnt == 3) {
|
||||
v1 = v[0];
|
||||
v2 = (v[1] < v1) ? render_priv->state.event->Duration : v[1];
|
||||
v3 = v[2];
|
||||
} else if (cnt == 2) {
|
||||
v1 = v[0];
|
||||
v2 = (v[1] < v1) ? render_priv->state.event->Duration : v[1];
|
||||
v3 = 1.;
|
||||
} else if (cnt == 1) {
|
||||
v1 = 0;
|
||||
v2 = render_priv->state.event->Duration;
|
||||
v3 = v[0];
|
||||
} else { // cnt == 0
|
||||
v1 = 0;
|
||||
v2 = render_priv->state.event->Duration;
|
||||
v3 = 1.;
|
||||
}
|
||||
render_priv->state.detect_collisions = 0;
|
||||
t1 = v1;
|
||||
t2 = v2;
|
||||
delta_t = v2 - v1;
|
||||
if (v3 < 0.)
|
||||
v3 = 0.;
|
||||
t = render_priv->time - render_priv->state.event->Start; // FIXME: move to render_context
|
||||
if (t <= t1)
|
||||
k = 0.;
|
||||
else if (t >= t2)
|
||||
k = 1.;
|
||||
else {
|
||||
assert(delta_t != 0.);
|
||||
k = pow(((double) (t - t1)) / delta_t, v3);
|
||||
}
|
||||
while (*p == '\\')
|
||||
p = parse_tag(render_priv, p, k); // maybe k*pwr ? no, specs forbid nested \t's
|
||||
skip_to(')'); // in case there is some unknown tag or a comment
|
||||
skip(')');
|
||||
} else if (mystrcmp(&p, "clip")) {
|
||||
char *start = p;
|
||||
int x0, y0, x1, y1;
|
||||
int res = 1;
|
||||
skipopt('(');
|
||||
res &= mystrtoi(&p, &x0);
|
||||
skipopt(',');
|
||||
res &= mystrtoi(&p, &y0);
|
||||
skipopt(',');
|
||||
res &= mystrtoi(&p, &x1);
|
||||
skipopt(',');
|
||||
res &= mystrtoi(&p, &y1);
|
||||
skipopt(')');
|
||||
if (res) {
|
||||
render_priv->state.clip_x0 =
|
||||
render_priv->state.clip_x0 * (1 - pwr) + x0 * pwr;
|
||||
render_priv->state.clip_x1 =
|
||||
render_priv->state.clip_x1 * (1 - pwr) + x1 * pwr;
|
||||
render_priv->state.clip_y0 =
|
||||
render_priv->state.clip_y0 * (1 - pwr) + y0 * pwr;
|
||||
render_priv->state.clip_y1 =
|
||||
render_priv->state.clip_y1 * (1 - pwr) + y1 * pwr;
|
||||
// Might be a vector clip
|
||||
} else if (!render_priv->state.clip_drawing) {
|
||||
p = parse_vector_clip(render_priv, start);
|
||||
render_priv->state.clip_drawing_mode = 0;
|
||||
} else {
|
||||
render_priv->state.clip_x0 = 0;
|
||||
render_priv->state.clip_y0 = 0;
|
||||
render_priv->state.clip_x1 = render_priv->track->PlayResX;
|
||||
render_priv->state.clip_y1 = render_priv->track->PlayResY;
|
||||
}
|
||||
} else if (mystrcmp(&p, "c")) {
|
||||
uint32_t val;
|
||||
int hex = render_priv->track->track_type == TRACK_TYPE_ASS;
|
||||
if (!strtocolor(render_priv->library, &p, &val, hex))
|
||||
val = render_priv->state.style->PrimaryColour;
|
||||
ass_msg(render_priv->library, MSGL_DBG2, "color: %X", val);
|
||||
change_color(&render_priv->state.c[0], val, pwr);
|
||||
} else if ((*p >= '1') && (*p <= '4') && (++p)
|
||||
&& (mystrcmp(&p, "c") || mystrcmp(&p, "a"))) {
|
||||
char n = *(p - 2);
|
||||
int cidx = n - '1';
|
||||
char cmd = *(p - 1);
|
||||
uint32_t val;
|
||||
int hex = render_priv->track->track_type == TRACK_TYPE_ASS;
|
||||
assert((n >= '1') && (n <= '4'));
|
||||
if (!strtocolor(render_priv->library, &p, &val, hex))
|
||||
switch (n) {
|
||||
case '1':
|
||||
val = render_priv->state.style->PrimaryColour;
|
||||
break;
|
||||
case '2':
|
||||
val = render_priv->state.style->SecondaryColour;
|
||||
break;
|
||||
case '3':
|
||||
val = render_priv->state.style->OutlineColour;
|
||||
break;
|
||||
case '4':
|
||||
val = render_priv->state.style->BackColour;
|
||||
break;
|
||||
default:
|
||||
val = 0;
|
||||
break; // impossible due to assert; avoid compilation warning
|
||||
}
|
||||
switch (cmd) {
|
||||
case 'c':
|
||||
change_color(render_priv->state.c + cidx, val, pwr);
|
||||
break;
|
||||
case 'a':
|
||||
change_alpha(render_priv->state.c + cidx, val >> 24, pwr);
|
||||
break;
|
||||
default:
|
||||
ass_msg(render_priv->library, MSGL_WARN, "Bad command: %c%c",
|
||||
n, cmd);
|
||||
break;
|
||||
}
|
||||
ass_msg(render_priv->library, MSGL_DBG2, "single c/a at %f: %c%c = %X",
|
||||
pwr, n, cmd, render_priv->state.c[cidx]);
|
||||
} else if (mystrcmp(&p, "r")) {
|
||||
reset_render_context(render_priv);
|
||||
} else if (mystrcmp(&p, "be")) {
|
||||
int val;
|
||||
if (mystrtoi(&p, &val)) {
|
||||
// Clamp to a safe upper limit, since high values need excessive CPU
|
||||
val = (val < 0) ? 0 : val;
|
||||
val = (val > MAX_BE) ? MAX_BE : val;
|
||||
render_priv->state.be = val;
|
||||
} else
|
||||
render_priv->state.be = 0;
|
||||
} else if (mystrcmp(&p, "b")) {
|
||||
int b;
|
||||
if (mystrtoi(&p, &b)) {
|
||||
if (pwr >= .5)
|
||||
render_priv->state.bold = b;
|
||||
} else
|
||||
render_priv->state.bold = render_priv->state.style->Bold;
|
||||
update_font(render_priv);
|
||||
} else if (mystrcmp(&p, "i")) {
|
||||
int i;
|
||||
if (mystrtoi(&p, &i)) {
|
||||
if (pwr >= .5)
|
||||
render_priv->state.italic = i;
|
||||
} else
|
||||
render_priv->state.italic = render_priv->state.style->Italic;
|
||||
update_font(render_priv);
|
||||
} else if (mystrcmp(&p, "kf") || mystrcmp(&p, "K")) {
|
||||
int val = 0;
|
||||
mystrtoi(&p, &val);
|
||||
render_priv->state.effect_type = EF_KARAOKE_KF;
|
||||
if (render_priv->state.effect_timing)
|
||||
render_priv->state.effect_skip_timing +=
|
||||
render_priv->state.effect_timing;
|
||||
render_priv->state.effect_timing = val * 10;
|
||||
} else if (mystrcmp(&p, "ko")) {
|
||||
int val = 0;
|
||||
mystrtoi(&p, &val);
|
||||
render_priv->state.effect_type = EF_KARAOKE_KO;
|
||||
if (render_priv->state.effect_timing)
|
||||
render_priv->state.effect_skip_timing +=
|
||||
render_priv->state.effect_timing;
|
||||
render_priv->state.effect_timing = val * 10;
|
||||
} else if (mystrcmp(&p, "k")) {
|
||||
int val = 0;
|
||||
mystrtoi(&p, &val);
|
||||
render_priv->state.effect_type = EF_KARAOKE;
|
||||
if (render_priv->state.effect_timing)
|
||||
render_priv->state.effect_skip_timing +=
|
||||
render_priv->state.effect_timing;
|
||||
render_priv->state.effect_timing = val * 10;
|
||||
} else if (mystrcmp(&p, "shad")) {
|
||||
double val;
|
||||
if (mystrtod(&p, &val)) {
|
||||
if (render_priv->state.shadow_x == render_priv->state.shadow_y)
|
||||
val = render_priv->state.shadow_x * (1 - pwr) + val * pwr;
|
||||
} else
|
||||
val = 0.;
|
||||
render_priv->state.shadow_x = render_priv->state.shadow_y = val;
|
||||
} else if (mystrcmp(&p, "s")) {
|
||||
int val;
|
||||
if (mystrtoi(&p, &val) && val)
|
||||
render_priv->state.flags |= DECO_STRIKETHROUGH;
|
||||
else
|
||||
render_priv->state.flags &= ~DECO_STRIKETHROUGH;
|
||||
} else if (mystrcmp(&p, "u")) {
|
||||
int val;
|
||||
if (mystrtoi(&p, &val) && val)
|
||||
render_priv->state.flags |= DECO_UNDERLINE;
|
||||
else
|
||||
render_priv->state.flags &= ~DECO_UNDERLINE;
|
||||
} else if (mystrcmp(&p, "pbo")) {
|
||||
double val = 0;
|
||||
if (mystrtod(&p, &val))
|
||||
render_priv->state.drawing->pbo = val;
|
||||
} else if (mystrcmp(&p, "p")) {
|
||||
int val;
|
||||
if (!mystrtoi(&p, &val))
|
||||
val = 0;
|
||||
if (val)
|
||||
render_priv->state.drawing->scale = val;
|
||||
render_priv->state.drawing_mode = !!val;
|
||||
} else if (mystrcmp(&p, "q")) {
|
||||
int val;
|
||||
if (!mystrtoi(&p, &val))
|
||||
val = render_priv->track->WrapStyle;
|
||||
render_priv->state.wrap_style = val;
|
||||
}
|
||||
|
||||
return p;
|
||||
}
|
||||
|
||||
void apply_transition_effects(ASS_Renderer *render_priv, ASS_Event *event)
|
||||
{
|
||||
int v[4];
|
||||
int cnt;
|
||||
char *p = event->Effect;
|
||||
|
||||
if (!p || !*p)
|
||||
return;
|
||||
|
||||
cnt = 0;
|
||||
while (cnt < 4 && (p = strchr(p, ';'))) {
|
||||
v[cnt++] = atoi(++p);
|
||||
}
|
||||
|
||||
if (strncmp(event->Effect, "Banner;", 7) == 0) {
|
||||
int delay;
|
||||
if (cnt < 1) {
|
||||
ass_msg(render_priv->library, MSGL_V,
|
||||
"Error parsing effect: '%s'", event->Effect);
|
||||
return;
|
||||
}
|
||||
if (cnt >= 2 && v[1] == 0) // right-to-left
|
||||
render_priv->state.scroll_direction = SCROLL_RL;
|
||||
else // left-to-right
|
||||
render_priv->state.scroll_direction = SCROLL_LR;
|
||||
|
||||
delay = v[0];
|
||||
if (delay == 0)
|
||||
delay = 1; // ?
|
||||
render_priv->state.scroll_shift =
|
||||
(render_priv->time - render_priv->state.event->Start) / delay;
|
||||
render_priv->state.evt_type = EVENT_HSCROLL;
|
||||
return;
|
||||
}
|
||||
|
||||
if (strncmp(event->Effect, "Scroll up;", 10) == 0) {
|
||||
render_priv->state.scroll_direction = SCROLL_BT;
|
||||
} else if (strncmp(event->Effect, "Scroll down;", 12) == 0) {
|
||||
render_priv->state.scroll_direction = SCROLL_TB;
|
||||
} else {
|
||||
ass_msg(render_priv->library, MSGL_V,
|
||||
"Unknown transition effect: '%s'", event->Effect);
|
||||
return;
|
||||
}
|
||||
// parse scroll up/down parameters
|
||||
{
|
||||
int delay;
|
||||
int y0, y1;
|
||||
if (cnt < 3) {
|
||||
ass_msg(render_priv->library, MSGL_V,
|
||||
"Error parsing effect: '%s'", event->Effect);
|
||||
return;
|
||||
}
|
||||
delay = v[2];
|
||||
if (delay == 0)
|
||||
delay = 1; // ?
|
||||
render_priv->state.scroll_shift =
|
||||
(render_priv->time - render_priv->state.event->Start) / delay;
|
||||
if (v[0] < v[1]) {
|
||||
y0 = v[0];
|
||||
y1 = v[1];
|
||||
} else {
|
||||
y0 = v[1];
|
||||
y1 = v[0];
|
||||
}
|
||||
if (y1 == 0)
|
||||
y1 = render_priv->track->PlayResY; // y0=y1=0 means fullscreen scrolling
|
||||
render_priv->state.clip_y0 = y0;
|
||||
render_priv->state.clip_y1 = y1;
|
||||
render_priv->state.evt_type = EVENT_VSCROLL;
|
||||
render_priv->state.detect_collisions = 0;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* \brief Get next ucs4 char from string, parsing and executing style overrides
|
||||
* \param str string pointer
|
||||
* \return ucs4 code of the next char
|
||||
* On return str points to the unparsed part of the string
|
||||
*/
|
||||
unsigned get_next_char(ASS_Renderer *render_priv, char **str)
|
||||
{
|
||||
char *p = *str;
|
||||
unsigned chr;
|
||||
if (*p == '{') { // '\0' goes here
|
||||
p++;
|
||||
while (1) {
|
||||
p = parse_tag(render_priv, p, 1.);
|
||||
if (*p == '}') { // end of tag
|
||||
p++;
|
||||
if (*p == '{') {
|
||||
p++;
|
||||
continue;
|
||||
} else
|
||||
break;
|
||||
} else if (*p != '\\')
|
||||
ass_msg(render_priv->library, MSGL_V,
|
||||
"Unable to parse: '%s'", p);
|
||||
if (*p == 0)
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (*p == '\t') {
|
||||
++p;
|
||||
*str = p;
|
||||
return ' ';
|
||||
}
|
||||
if (*p == '\\') {
|
||||
if ((p[1] == 'N') || ((p[1] == 'n') &&
|
||||
(render_priv->state.wrap_style == 2))) {
|
||||
p += 2;
|
||||
*str = p;
|
||||
return '\n';
|
||||
} else if (p[1] == 'n') {
|
||||
p += 2;
|
||||
*str = p;
|
||||
return ' ';
|
||||
} else if (p[1] == 'h') {
|
||||
p += 2;
|
||||
*str = p;
|
||||
return NBSP;
|
||||
}
|
||||
}
|
||||
chr = ass_utf8_get_char((char **) &p);
|
||||
*str = p;
|
||||
return chr;
|
||||
}
|
|
@ -1,38 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2009 Grigori Goronzy <greg@geekmind.org>
|
||||
*
|
||||
* This file is part of libass.
|
||||
*
|
||||
* Permission to use, copy, modify, and distribute this software for any
|
||||
* purpose with or without fee is hereby granted, provided that the above
|
||||
* copyright notice and this permission notice appear in all copies.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
||||
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
||||
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
||||
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef LIBASS_PARSE_H
|
||||
#define LIBASS_PARSE_H
|
||||
|
||||
#define BLUR_MAX_RADIUS 100.0
|
||||
|
||||
#define _r(c) ((c) >> 24)
|
||||
#define _g(c) (((c) >> 16) & 0xFF)
|
||||
#define _b(c) (((c) >> 8) & 0xFF)
|
||||
#define _a(c) ((c) & 0xFF)
|
||||
|
||||
void update_font(ASS_Renderer *render_priv);
|
||||
void change_border(ASS_Renderer *render_priv, double border_x,
|
||||
double border_y);
|
||||
void apply_transition_effects(ASS_Renderer *render_priv, ASS_Event *event);
|
||||
unsigned get_next_char(ASS_Renderer *render_priv, char **str);
|
||||
extern void change_alpha(uint32_t *var, uint32_t new, double pwr);
|
||||
extern uint32_t mult_alpha(uint32_t a, uint32_t b);
|
||||
|
||||
|
||||
#endif /* LIBASS_PARSE_H */
|
File diff suppressed because it is too large
Load Diff
|
@ -1,262 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
|
||||
* Copyright (C) 2009 Grigori Goronzy <greg@geekmind.org>
|
||||
*
|
||||
* This file is part of libass.
|
||||
*
|
||||
* libass 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.
|
||||
*
|
||||
* libass 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 libass; if not, write to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#ifndef LIBASS_RENDER_H
|
||||
#define LIBASS_RENDER_H
|
||||
|
||||
#include <inttypes.h>
|
||||
#include <ft2build.h>
|
||||
#include FT_FREETYPE_H
|
||||
#include FT_STROKER_H
|
||||
#include FT_GLYPH_H
|
||||
#include FT_SYNTHESIS_H
|
||||
|
||||
#include "ass.h"
|
||||
#include "ass_font.h"
|
||||
#include "ass_bitmap.h"
|
||||
#include "ass_cache.h"
|
||||
#include "ass_utils.h"
|
||||
#include "ass_fontconfig.h"
|
||||
#include "ass_library.h"
|
||||
#include "ass_drawing.h"
|
||||
|
||||
typedef struct {
|
||||
double xMin;
|
||||
double xMax;
|
||||
double yMin;
|
||||
double yMax;
|
||||
} DBBox;
|
||||
|
||||
typedef struct {
|
||||
double x;
|
||||
double y;
|
||||
} DVector;
|
||||
|
||||
typedef struct free_list {
|
||||
void *object;
|
||||
struct free_list *next;
|
||||
} FreeList;
|
||||
|
||||
typedef struct {
|
||||
int frame_width;
|
||||
int frame_height;
|
||||
double font_size_coeff; // font size multiplier
|
||||
double line_spacing; // additional line spacing (in frame pixels)
|
||||
int top_margin; // height of top margin. Everything except toptitles is shifted down by top_margin.
|
||||
int bottom_margin; // height of bottom margin. (frame_height - top_margin - bottom_margin) is original video height.
|
||||
int left_margin;
|
||||
int right_margin;
|
||||
int use_margins; // 0 - place all subtitles inside original frame
|
||||
// 1 - use margins for placing toptitles and subtitles
|
||||
double aspect; // frame aspect ratio, d_width / d_height.
|
||||
double storage_aspect; // pixel ratio of the source image
|
||||
ASS_Hinting hinting;
|
||||
|
||||
char *default_font;
|
||||
char *default_family;
|
||||
} ASS_Settings;
|
||||
|
||||
// a rendered event
|
||||
typedef struct {
|
||||
ASS_Image *imgs;
|
||||
int top, height, left, width;
|
||||
int detect_collisions;
|
||||
int shift_direction;
|
||||
ASS_Event *event;
|
||||
} EventImages;
|
||||
|
||||
typedef enum {
|
||||
EF_NONE = 0,
|
||||
EF_KARAOKE,
|
||||
EF_KARAOKE_KF,
|
||||
EF_KARAOKE_KO
|
||||
} Effect;
|
||||
|
||||
// describes a glyph
|
||||
// GlyphInfo and TextInfo are used for text centering and word-wrapping operations
|
||||
typedef struct {
|
||||
unsigned symbol;
|
||||
unsigned skip; // skip glyph when layouting text
|
||||
FT_Glyph glyph;
|
||||
FT_Glyph outline_glyph;
|
||||
Bitmap *bm; // glyph bitmap
|
||||
Bitmap *bm_o; // outline bitmap
|
||||
Bitmap *bm_s; // shadow bitmap
|
||||
FT_BBox bbox;
|
||||
FT_Vector pos;
|
||||
char linebreak; // the first (leading) glyph of some line ?
|
||||
uint32_t c[4]; // colors
|
||||
FT_Vector advance; // 26.6
|
||||
Effect effect_type;
|
||||
int effect_timing; // time duration of current karaoke word
|
||||
// after process_karaoke_effects: distance in pixels from the glyph origin.
|
||||
// part of the glyph to the left of it is displayed in a different color.
|
||||
int effect_skip_timing; // delay after the end of last karaoke word
|
||||
int asc, desc; // font max ascender and descender
|
||||
int be; // blur edges
|
||||
double blur; // gaussian blur
|
||||
double shadow_x;
|
||||
double shadow_y;
|
||||
double frx, fry, frz; // rotation
|
||||
double fax, fay; // text shearing
|
||||
|
||||
BitmapHashKey hash_key;
|
||||
} GlyphInfo;
|
||||
|
||||
typedef struct {
|
||||
double asc, desc;
|
||||
} LineInfo;
|
||||
|
||||
typedef struct {
|
||||
GlyphInfo *glyphs;
|
||||
int length;
|
||||
LineInfo *lines;
|
||||
int n_lines;
|
||||
double height;
|
||||
int max_glyphs;
|
||||
int max_lines;
|
||||
} TextInfo;
|
||||
|
||||
// Renderer state.
|
||||
// Values like current font face, color, screen position, clipping and so on are stored here.
|
||||
typedef struct {
|
||||
ASS_Event *event;
|
||||
ASS_Style *style;
|
||||
|
||||
ASS_Font *font;
|
||||
char *font_path;
|
||||
double font_size;
|
||||
int flags; // decoration flags (underline/strike-through)
|
||||
|
||||
FT_Stroker stroker;
|
||||
int alignment; // alignment overrides go here; if zero, style value will be used
|
||||
double frx, fry, frz;
|
||||
double fax, fay; // text shearing
|
||||
enum {
|
||||
EVENT_NORMAL, // "normal" top-, sub- or mid- title
|
||||
EVENT_POSITIONED, // happens after pos(,), margins are ignored
|
||||
EVENT_HSCROLL, // "Banner" transition effect, text_width is unlimited
|
||||
EVENT_VSCROLL // "Scroll up", "Scroll down" transition effects
|
||||
} evt_type;
|
||||
double pos_x, pos_y; // position
|
||||
double org_x, org_y; // origin
|
||||
char have_origin; // origin is explicitly defined; if 0, get_base_point() is used
|
||||
double scale_x, scale_y;
|
||||
double hspacing; // distance between letters, in pixels
|
||||
double border_x; // outline width
|
||||
double border_y;
|
||||
uint32_t c[4]; // colors(Primary, Secondary, so on) in RGBA
|
||||
int clip_x0, clip_y0, clip_x1, clip_y1;
|
||||
char clip_mode; // 1 = iclip
|
||||
char detect_collisions;
|
||||
uint32_t fade; // alpha from \fad
|
||||
char be; // blur edges
|
||||
double blur; // gaussian blur
|
||||
double shadow_x;
|
||||
double shadow_y;
|
||||
int drawing_mode; // not implemented; when != 0 text is discarded, except for style override tags
|
||||
ASS_Drawing *drawing; // current drawing
|
||||
ASS_Drawing *clip_drawing; // clip vector
|
||||
int clip_drawing_mode; // 0 = regular clip, 1 = inverse clip
|
||||
|
||||
Effect effect_type;
|
||||
int effect_timing;
|
||||
int effect_skip_timing;
|
||||
|
||||
enum {
|
||||
SCROLL_LR, // left-to-right
|
||||
SCROLL_RL,
|
||||
SCROLL_TB, // top-to-bottom
|
||||
SCROLL_BT
|
||||
} scroll_direction; // for EVENT_HSCROLL, EVENT_VSCROLL
|
||||
int scroll_shift;
|
||||
|
||||
// face properties
|
||||
char *family;
|
||||
unsigned bold;
|
||||
unsigned italic;
|
||||
int treat_family_as_pattern;
|
||||
int wrap_style;
|
||||
} RenderContext;
|
||||
|
||||
typedef struct {
|
||||
Hashmap *font_cache;
|
||||
Hashmap *glyph_cache;
|
||||
Hashmap *bitmap_cache;
|
||||
Hashmap *composite_cache;
|
||||
size_t glyph_max;
|
||||
size_t bitmap_max_size;
|
||||
} CacheStore;
|
||||
|
||||
struct ass_renderer {
|
||||
ASS_Library *library;
|
||||
FT_Library ftlibrary;
|
||||
FCInstance *fontconfig_priv;
|
||||
ASS_Settings settings;
|
||||
int render_id;
|
||||
ASS_SynthPriv *synth_priv;
|
||||
|
||||
ASS_Image *images_root; // rendering result is stored here
|
||||
ASS_Image *prev_images_root;
|
||||
|
||||
EventImages *eimg; // temporary buffer for sorting rendered events
|
||||
int eimg_size; // allocated buffer size
|
||||
|
||||
// frame-global data
|
||||
int width, height; // screen dimensions
|
||||
int orig_height; // frame height ( = screen height - margins )
|
||||
int orig_width; // frame width ( = screen width - margins )
|
||||
int orig_height_nocrop; // frame height ( = screen height - margins + cropheight)
|
||||
int orig_width_nocrop; // frame width ( = screen width - margins + cropwidth)
|
||||
ASS_Track *track;
|
||||
long long time; // frame's timestamp, ms
|
||||
double font_scale;
|
||||
double font_scale_x; // x scale applied to all glyphs to preserve text aspect ratio
|
||||
double border_scale;
|
||||
|
||||
RenderContext state;
|
||||
TextInfo text_info;
|
||||
CacheStore cache;
|
||||
|
||||
FreeList *free_head;
|
||||
FreeList *free_tail;
|
||||
};
|
||||
|
||||
typedef struct render_priv {
|
||||
int top, height, left, width;
|
||||
int render_id;
|
||||
} RenderPriv;
|
||||
|
||||
typedef struct {
|
||||
int x0;
|
||||
int y0;
|
||||
int x1;
|
||||
int y1;
|
||||
} Rect;
|
||||
|
||||
typedef struct {
|
||||
int a, b; // top and height
|
||||
int ha, hb; // left and width
|
||||
} Segment;
|
||||
|
||||
void reset_render_context(ASS_Renderer *render_priv);
|
||||
|
||||
#endif /* LIBASS_RENDER_H */
|
|
@ -1,247 +0,0 @@
|
|||
/*
|
||||
* Copyright (c) 1988-1993 The Regents of the University of California.
|
||||
* Copyright (c) 1994 Sun Microsystems, Inc.
|
||||
*
|
||||
* Permission to use, copy, modify, and distribute this
|
||||
* software and its documentation for any purpose and without
|
||||
* fee is hereby granted, provided that the above copyright
|
||||
* notice appear in all copies. The University of California
|
||||
* makes no representations about the suitability of this
|
||||
* software for any purpose. It is provided "as is" without
|
||||
* express or implied warranty.
|
||||
*
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <ctype.h>
|
||||
#include <errno.h>
|
||||
|
||||
static int maxExponent = 511; /* Largest possible base 10 exponent. Any
|
||||
* exponent larger than this will already
|
||||
* produce underflow or overflow, so there's
|
||||
* no need to worry about additional digits.
|
||||
*/
|
||||
|
||||
static double powersOf10[] = { /* Table giving binary powers of 10. Entry */
|
||||
10., /* is 10^2^i. Used to convert decimal */
|
||||
100., /* exponents into floating-point numbers. */
|
||||
1.0e4,
|
||||
1.0e8,
|
||||
1.0e16,
|
||||
1.0e32,
|
||||
1.0e64,
|
||||
1.0e128,
|
||||
1.0e256
|
||||
};
|
||||
|
||||
/*
|
||||
*----------------------------------------------------------------------
|
||||
*
|
||||
* strtod --
|
||||
*
|
||||
* This procedure converts a floating-point number from an ASCII
|
||||
* decimal representation to internal double-precision format.
|
||||
*
|
||||
* Results:
|
||||
* The return value is the double-precision floating-point
|
||||
* representation of the characters in string. If endPtr isn't
|
||||
* NULL, then *endPtr is filled in with the address of the
|
||||
* next character after the last one that was part of the
|
||||
* floating-point number.
|
||||
*
|
||||
* Side effects:
|
||||
* None.
|
||||
*
|
||||
*----------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
double
|
||||
ass_strtod(string, endPtr)
|
||||
const char *string; /* A decimal ASCII floating-point number,
|
||||
* optionally preceded by white space.
|
||||
* Must have form "-I.FE-X", where I is the
|
||||
* integer part of the mantissa, F is the
|
||||
* fractional part of the mantissa, and X
|
||||
* is the exponent. Either of the signs
|
||||
* may be "+", "-", or omitted. Either I
|
||||
* or F may be omitted, or both. The decimal
|
||||
* point isn't necessary unless F is present.
|
||||
* The "E" may actually be an "e". E and X
|
||||
* may both be omitted (but not just one).
|
||||
*/
|
||||
char **endPtr; /* If non-NULL, store terminating character's
|
||||
* address here. */
|
||||
{
|
||||
int sign, expSign = 0;
|
||||
double fraction, dblExp, *d;
|
||||
register const char *p;
|
||||
register int c;
|
||||
int exp = 0; /* Exponent read from "EX" field. */
|
||||
int fracExp = 0; /* Exponent that derives from the fractional
|
||||
* part. Under normal circumstatnces, it is
|
||||
* the negative of the number of digits in F.
|
||||
* However, if I is very long, the last digits
|
||||
* of I get dropped (otherwise a long I with a
|
||||
* large negative exponent could cause an
|
||||
* unnecessary overflow on I alone). In this
|
||||
* case, fracExp is incremented one for each
|
||||
* dropped digit. */
|
||||
int mantSize; /* Number of digits in mantissa. */
|
||||
int decPt; /* Number of mantissa digits BEFORE decimal
|
||||
* point. */
|
||||
const char *pExp; /* Temporarily holds location of exponent
|
||||
* in string. */
|
||||
|
||||
/*
|
||||
* Strip off leading blanks and check for a sign.
|
||||
*/
|
||||
|
||||
p = string;
|
||||
while (isspace(*p)) {
|
||||
p += 1;
|
||||
}
|
||||
if (*p == '-') {
|
||||
sign = 1;
|
||||
p += 1;
|
||||
} else {
|
||||
if (*p == '+') {
|
||||
p += 1;
|
||||
}
|
||||
sign = 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Count the number of digits in the mantissa (including the decimal
|
||||
* point), and also locate the decimal point.
|
||||
*/
|
||||
|
||||
decPt = -1;
|
||||
for (mantSize = 0; ; mantSize += 1)
|
||||
{
|
||||
c = *p;
|
||||
if (!isdigit(c)) {
|
||||
if ((c != '.') || (decPt >= 0)) {
|
||||
break;
|
||||
}
|
||||
decPt = mantSize;
|
||||
}
|
||||
p += 1;
|
||||
}
|
||||
|
||||
/*
|
||||
* Now suck up the digits in the mantissa. Use two integers to
|
||||
* collect 9 digits each (this is faster than using floating-point).
|
||||
* If the mantissa has more than 18 digits, ignore the extras, since
|
||||
* they can't affect the value anyway.
|
||||
*/
|
||||
|
||||
pExp = p;
|
||||
p -= mantSize;
|
||||
if (decPt < 0) {
|
||||
decPt = mantSize;
|
||||
} else {
|
||||
mantSize -= 1; /* One of the digits was the point. */
|
||||
}
|
||||
if (mantSize > 18) {
|
||||
fracExp = decPt - 18;
|
||||
mantSize = 18;
|
||||
} else {
|
||||
fracExp = decPt - mantSize;
|
||||
}
|
||||
if (mantSize == 0) {
|
||||
fraction = 0.0;
|
||||
p = string;
|
||||
goto done;
|
||||
} else {
|
||||
int frac1, frac2;
|
||||
frac1 = 0;
|
||||
for ( ; mantSize > 9; mantSize -= 1)
|
||||
{
|
||||
c = *p;
|
||||
p += 1;
|
||||
if (c == '.') {
|
||||
c = *p;
|
||||
p += 1;
|
||||
}
|
||||
frac1 = 10*frac1 + (c - '0');
|
||||
}
|
||||
frac2 = 0;
|
||||
for (; mantSize > 0; mantSize -= 1)
|
||||
{
|
||||
c = *p;
|
||||
p += 1;
|
||||
if (c == '.') {
|
||||
c = *p;
|
||||
p += 1;
|
||||
}
|
||||
frac2 = 10*frac2 + (c - '0');
|
||||
}
|
||||
fraction = (1.0e9 * frac1) + frac2;
|
||||
}
|
||||
|
||||
/*
|
||||
* Skim off the exponent.
|
||||
*/
|
||||
|
||||
p = pExp;
|
||||
if ((*p == 'E') || (*p == 'e')) {
|
||||
p += 1;
|
||||
if (*p == '-') {
|
||||
expSign = 1;
|
||||
p += 1;
|
||||
} else {
|
||||
if (*p == '+') {
|
||||
p += 1;
|
||||
}
|
||||
expSign = 0;
|
||||
}
|
||||
while (isdigit(*p)) {
|
||||
exp = exp * 10 + (*p - '0');
|
||||
p += 1;
|
||||
}
|
||||
}
|
||||
if (expSign) {
|
||||
exp = fracExp - exp;
|
||||
} else {
|
||||
exp = fracExp + exp;
|
||||
}
|
||||
|
||||
/*
|
||||
* Generate a floating-point number that represents the exponent.
|
||||
* Do this by processing the exponent one bit at a time to combine
|
||||
* many powers of 2 of 10. Then combine the exponent with the
|
||||
* fraction.
|
||||
*/
|
||||
|
||||
if (exp < 0) {
|
||||
expSign = 1;
|
||||
exp = -exp;
|
||||
} else {
|
||||
expSign = 0;
|
||||
}
|
||||
if (exp > maxExponent) {
|
||||
exp = maxExponent;
|
||||
errno = ERANGE;
|
||||
}
|
||||
dblExp = 1.0;
|
||||
for (d = powersOf10; exp != 0; exp >>= 1, d += 1) {
|
||||
if (exp & 01) {
|
||||
dblExp *= *d;
|
||||
}
|
||||
}
|
||||
if (expSign) {
|
||||
fraction /= dblExp;
|
||||
} else {
|
||||
fraction *= dblExp;
|
||||
}
|
||||
|
||||
done:
|
||||
if (endPtr != NULL) {
|
||||
*endPtr = (char *) p;
|
||||
}
|
||||
|
||||
if (sign) {
|
||||
return -fraction;
|
||||
}
|
||||
return fraction;
|
||||
}
|
|
@ -1,125 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
|
||||
*
|
||||
* This file is part of libass.
|
||||
*
|
||||
* libass 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.
|
||||
*
|
||||
* libass 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 libass; if not, write to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#ifndef LIBASS_TYPES_H
|
||||
#define LIBASS_TYPES_H
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
#define VALIGN_SUB 0
|
||||
#define VALIGN_CENTER 8
|
||||
#define VALIGN_TOP 4
|
||||
#define HALIGN_LEFT 1
|
||||
#define HALIGN_CENTER 2
|
||||
#define HALIGN_RIGHT 3
|
||||
|
||||
/* Opaque objects internally used by libass. Contents are private. */
|
||||
typedef struct ass_renderer ASS_Renderer;
|
||||
typedef struct render_priv ASS_RenderPriv;
|
||||
typedef struct parser_priv ASS_ParserPriv;
|
||||
typedef struct ass_library ASS_Library;
|
||||
|
||||
/* ASS Style: line */
|
||||
typedef struct ass_style {
|
||||
char *Name;
|
||||
char *FontName;
|
||||
double FontSize;
|
||||
uint32_t PrimaryColour;
|
||||
uint32_t SecondaryColour;
|
||||
uint32_t OutlineColour;
|
||||
uint32_t BackColour;
|
||||
int Bold;
|
||||
int Italic;
|
||||
int Underline;
|
||||
int StrikeOut;
|
||||
double ScaleX;
|
||||
double ScaleY;
|
||||
double Spacing;
|
||||
int Angle;
|
||||
int BorderStyle;
|
||||
double Outline;
|
||||
double Shadow;
|
||||
int Alignment;
|
||||
int MarginL;
|
||||
int MarginR;
|
||||
int MarginV;
|
||||
int Encoding;
|
||||
int treat_fontname_as_pattern;
|
||||
} ASS_Style;
|
||||
|
||||
/*
|
||||
* ASS_Event corresponds to a single Dialogue line;
|
||||
* text is stored as-is, style overrides will be parsed later.
|
||||
*/
|
||||
typedef struct ass_event {
|
||||
long long Start; // ms
|
||||
long long Duration; // ms
|
||||
|
||||
int ReadOrder;
|
||||
int Layer;
|
||||
int Style;
|
||||
char *Name;
|
||||
int MarginL;
|
||||
int MarginR;
|
||||
int MarginV;
|
||||
char *Effect;
|
||||
char *Text;
|
||||
|
||||
ASS_RenderPriv *render_priv;
|
||||
} ASS_Event;
|
||||
|
||||
/*
|
||||
* ass track represent either an external script or a matroska subtitle stream
|
||||
* (no real difference between them); it can be used in rendering after the
|
||||
* headers are parsed (i.e. events format line read).
|
||||
*/
|
||||
typedef struct ass_track {
|
||||
int n_styles; // amount used
|
||||
int max_styles; // amount allocated
|
||||
int n_events;
|
||||
int max_events;
|
||||
ASS_Style *styles; // array of styles, max_styles length, n_styles used
|
||||
ASS_Event *events; // the same as styles
|
||||
|
||||
char *style_format; // style format line (everything after "Format: ")
|
||||
char *event_format; // event format line
|
||||
|
||||
enum {
|
||||
TRACK_TYPE_UNKNOWN = 0,
|
||||
TRACK_TYPE_ASS,
|
||||
TRACK_TYPE_SSA
|
||||
} track_type;
|
||||
|
||||
// Script header fields
|
||||
int PlayResX;
|
||||
int PlayResY;
|
||||
double Timer;
|
||||
int WrapStyle;
|
||||
int ScaledBorderAndShadow;
|
||||
int Kerning;
|
||||
|
||||
int default_style; // index of default style
|
||||
char *name; // file name in case of external subs, 0 for streams
|
||||
|
||||
ASS_Library *library;
|
||||
ASS_ParserPriv *parser_priv;
|
||||
} ASS_Track;
|
||||
|
||||
#endif /* LIBASS_TYPES_H */
|
|
@ -1,207 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
|
||||
*
|
||||
* This file is part of libass.
|
||||
*
|
||||
* libass 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.
|
||||
*
|
||||
* libass 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 libass; if not, write to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#include "config.h"
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <inttypes.h>
|
||||
#include <ft2build.h>
|
||||
#include FT_GLYPH_H
|
||||
|
||||
#include "ass_library.h"
|
||||
#include "ass.h"
|
||||
#include "ass_utils.h"
|
||||
|
||||
int mystrtoi(char **p, int *res)
|
||||
{
|
||||
double temp_res;
|
||||
char *start = *p;
|
||||
temp_res = ass_strtod(*p, p);
|
||||
*res = (int) (temp_res + (temp_res > 0 ? 0.5 : -0.5));
|
||||
if (*p != start)
|
||||
return 1;
|
||||
else
|
||||
return 0;
|
||||
}
|
||||
|
||||
int mystrtoll(char **p, long long *res)
|
||||
{
|
||||
double temp_res;
|
||||
char *start = *p;
|
||||
temp_res = ass_strtod(*p, p);
|
||||
*res = (int) (temp_res + (temp_res > 0 ? 0.5 : -0.5));
|
||||
if (*p != start)
|
||||
return 1;
|
||||
else
|
||||
return 0;
|
||||
}
|
||||
|
||||
int mystrtou32(char **p, int base, uint32_t *res)
|
||||
{
|
||||
char *start = *p;
|
||||
*res = strtoll(*p, p, base);
|
||||
if (*p != start)
|
||||
return 1;
|
||||
else
|
||||
return 0;
|
||||
}
|
||||
|
||||
int mystrtod(char **p, double *res)
|
||||
{
|
||||
char *start = *p;
|
||||
*res = ass_strtod(*p, p);
|
||||
if (*p != start)
|
||||
return 1;
|
||||
else
|
||||
return 0;
|
||||
}
|
||||
|
||||
int strtocolor(ASS_Library *library, char **q, uint32_t *res, int hex)
|
||||
{
|
||||
uint32_t color = 0;
|
||||
int result;
|
||||
char *p = *q;
|
||||
int base = hex ? 16 : 10;
|
||||
|
||||
if (*p == '&')
|
||||
++p;
|
||||
else
|
||||
ass_msg(library, MSGL_DBG2, "suspicious color format: \"%s\"\n", p);
|
||||
|
||||
if (*p == 'H' || *p == 'h') {
|
||||
++p;
|
||||
result = mystrtou32(&p, 16, &color);
|
||||
} else {
|
||||
result = mystrtou32(&p, base, &color);
|
||||
}
|
||||
|
||||
{
|
||||
unsigned char *tmp = (unsigned char *) (&color);
|
||||
unsigned char b;
|
||||
b = tmp[0];
|
||||
tmp[0] = tmp[3];
|
||||
tmp[3] = b;
|
||||
b = tmp[1];
|
||||
tmp[1] = tmp[2];
|
||||
tmp[2] = b;
|
||||
}
|
||||
if (*p == '&')
|
||||
++p;
|
||||
*q = p;
|
||||
|
||||
*res = color;
|
||||
return result;
|
||||
}
|
||||
|
||||
// Return a boolean value for a string
|
||||
char parse_bool(char *str)
|
||||
{
|
||||
while (*str == ' ' || *str == '\t')
|
||||
str++;
|
||||
if (!strncasecmp(str, "yes", 3))
|
||||
return 1;
|
||||
else if (strtol(str, NULL, 10) > 0)
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
|
||||
void ass_msg(ASS_Library *priv, int lvl, char *fmt, ...)
|
||||
{
|
||||
va_list va;
|
||||
va_start(va, fmt);
|
||||
priv->msg_callback(lvl, fmt, va, priv->msg_callback_data);
|
||||
va_end(va);
|
||||
}
|
||||
|
||||
unsigned ass_utf8_get_char(char **str)
|
||||
{
|
||||
uint8_t *strp = (uint8_t *) * str;
|
||||
unsigned c = *strp++;
|
||||
unsigned mask = 0x80;
|
||||
int len = -1;
|
||||
while (c & mask) {
|
||||
mask >>= 1;
|
||||
len++;
|
||||
}
|
||||
if (len <= 0 || len > 4)
|
||||
goto no_utf8;
|
||||
c &= mask - 1;
|
||||
while ((*strp & 0xc0) == 0x80) {
|
||||
if (len-- <= 0)
|
||||
goto no_utf8;
|
||||
c = (c << 6) | (*strp++ & 0x3f);
|
||||
}
|
||||
if (len)
|
||||
goto no_utf8;
|
||||
*str = (char *) strp;
|
||||
return c;
|
||||
|
||||
no_utf8:
|
||||
strp = (uint8_t *) * str;
|
||||
c = *strp++;
|
||||
*str = (char *) strp;
|
||||
return c;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_ENCA
|
||||
void *ass_guess_buffer_cp(ASS_Library *library, unsigned char *buffer,
|
||||
int buflen, char *preferred_language,
|
||||
char *fallback)
|
||||
{
|
||||
const char **languages;
|
||||
size_t langcnt;
|
||||
EncaAnalyser analyser;
|
||||
EncaEncoding encoding;
|
||||
char *detected_sub_cp = NULL;
|
||||
int i;
|
||||
|
||||
languages = enca_get_languages(&langcnt);
|
||||
ass_msg(library, MSGL_V, "ENCA supported languages");
|
||||
for (i = 0; i < langcnt; i++) {
|
||||
ass_msg(library, MSGL_V, "lang %s", languages[i]);
|
||||
}
|
||||
|
||||
for (i = 0; i < langcnt; i++) {
|
||||
const char *tmp;
|
||||
|
||||
if (strcasecmp(languages[i], preferred_language) != 0)
|
||||
continue;
|
||||
analyser = enca_analyser_alloc(languages[i]);
|
||||
encoding = enca_analyse_const(analyser, buffer, buflen);
|
||||
tmp = enca_charset_name(encoding.charset, ENCA_NAME_STYLE_ICONV);
|
||||
if (tmp && encoding.charset != ENCA_CS_UNKNOWN) {
|
||||
detected_sub_cp = strdup(tmp);
|
||||
ass_msg(library, MSGL_INFO, "ENCA detected charset: %s", tmp);
|
||||
}
|
||||
enca_analyser_free(analyser);
|
||||
}
|
||||
|
||||
free(languages);
|
||||
|
||||
if (!detected_sub_cp) {
|
||||
detected_sub_cp = strdup(fallback);
|
||||
ass_msg(library, MSGL_INFO,
|
||||
"ENCA detection failed: fallback to %s", fallback);
|
||||
}
|
||||
|
||||
return detected_sub_cp;
|
||||
}
|
||||
#endif
|
|
@ -1,147 +0,0 @@
|
|||
/*
|
||||
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
|
||||
*
|
||||
* This file is part of libass.
|
||||
*
|
||||
* libass 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.
|
||||
*
|
||||
* libass 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 libass; if not, write to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*/
|
||||
|
||||
#ifndef LIBASS_UTILS_H
|
||||
#define LIBASS_UTILS_H
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdarg.h>
|
||||
#include <stdint.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <assert.h>
|
||||
|
||||
#ifdef CONFIG_ENCA
|
||||
#include <enca.h>
|
||||
#endif
|
||||
|
||||
#include "ass.h"
|
||||
|
||||
#define MSGL_FATAL 0
|
||||
#define MSGL_ERR 1
|
||||
#define MSGL_WARN 2
|
||||
#define MSGL_INFO 4
|
||||
#define MSGL_V 6
|
||||
#define MSGL_DBG2 7
|
||||
|
||||
#define FFMAX(a,b) ((a) > (b) ? (a) : (b))
|
||||
#define FFMIN(a,b) ((a) > (b) ? (b) : (a))
|
||||
#define FFMINMAX(c,a,b) FFMIN(FFMAX(c, a), b)
|
||||
|
||||
int mystrtoi(char **p, int *res);
|
||||
int mystrtoll(char **p, long long *res);
|
||||
int mystrtou32(char **p, int base, uint32_t *res);
|
||||
int mystrtod(char **p, double *res);
|
||||
int strtocolor(ASS_Library *library, char **q, uint32_t *res, int hex);
|
||||
char parse_bool(char *str);
|
||||
unsigned ass_utf8_get_char(char **str);
|
||||
void ass_msg(ASS_Library *priv, int lvl, char *fmt, ...);
|
||||
#ifdef CONFIG_ENCA
|
||||
void *ass_guess_buffer_cp(ASS_Library *library, unsigned char *buffer,
|
||||
int buflen, char *preferred_language,
|
||||
char *fallback);
|
||||
#endif
|
||||
|
||||
/* defined in ass_strtod.c */
|
||||
double ass_strtod(const char *string, char **endPtr);
|
||||
|
||||
static inline int d6_to_int(int x)
|
||||
{
|
||||
return (x + 32) >> 6;
|
||||
}
|
||||
static inline int d16_to_int(int x)
|
||||
{
|
||||
return (x + 32768) >> 16;
|
||||
}
|
||||
static inline int int_to_d6(int x)
|
||||
{
|
||||
return x << 6;
|
||||
}
|
||||
static inline int int_to_d16(int x)
|
||||
{
|
||||
return x << 16;
|
||||
}
|
||||
static inline int d16_to_d6(int x)
|
||||
{
|
||||
return (x + 512) >> 10;
|
||||
}
|
||||
static inline int d6_to_d16(int x)
|
||||
{
|
||||
return x << 10;
|
||||
}
|
||||
static inline double d6_to_double(int x)
|
||||
{
|
||||
return x / 64.;
|
||||
}
|
||||
static inline int double_to_d6(double x)
|
||||
{
|
||||
return (int) (x * 64);
|
||||
}
|
||||
static inline double d16_to_double(int x)
|
||||
{
|
||||
return ((double) x) / 0x10000;
|
||||
}
|
||||
static inline int double_to_d16(double x)
|
||||
{
|
||||
return (int) (x * 0x10000);
|
||||
}
|
||||
static inline double d22_to_double(int x)
|
||||
{
|
||||
return ((double) x) / 0x400000;
|
||||
}
|
||||
static inline int double_to_d22(double x)
|
||||
{
|
||||
return (int) (x * 0x400000);
|
||||
}
|
||||
|
||||
// Calculate cache key for a rotational angle in degrees
|
||||
static inline int rot_key(double a)
|
||||
{
|
||||
const int m = double_to_d22(360.0);
|
||||
return double_to_d22(a) % m;
|
||||
}
|
||||
|
||||
#define FNV1_32A_INIT (unsigned)0x811c9dc5
|
||||
|
||||
static inline unsigned fnv_32a_buf(void *buf, size_t len, unsigned hval)
|
||||
{
|
||||
unsigned char *bp = buf;
|
||||
unsigned char *be = bp + len;
|
||||
while (bp < be) {
|
||||
hval ^= (unsigned) *bp++;
|
||||
hval +=
|
||||
(hval << 1) + (hval << 4) + (hval << 7) + (hval << 8) +
|
||||
(hval << 24);
|
||||
}
|
||||
return hval;
|
||||
}
|
||||
static inline unsigned fnv_32a_str(char *str, unsigned hval)
|
||||
{
|
||||
unsigned char *s = (unsigned char *) str;
|
||||
while (*s) {
|
||||
hval ^= (unsigned) *s++;
|
||||
hval +=
|
||||
(hval << 1) + (hval << 4) + (hval << 7) + (hval << 8) +
|
||||
(hval << 24);
|
||||
}
|
||||
return hval;
|
||||
}
|
||||
|
||||
#endif /* LIBASS_UTILS_H */
|
|
@ -1,55 +0,0 @@
|
|||
#ifndef __LIBASS_HELP_MP_H__
|
||||
#define __LIBASS_HELP_MP_H__
|
||||
#define MSGTR_LIBASS_FT_Glyph_To_BitmapError "[ass] FT_Glyph_To_Bitmap error %d \n"
|
||||
#define MSGTR_LIBASS_UnsupportedPixelMode "[ass] Unsupported pixel mode: %d\n"
|
||||
#define MSGTR_LIBASS_GlyphBBoxTooLarge "[ass] Glyph bounding box too large: %dx%dpx\n"
|
||||
#define MSGTR_LIBASS_NoStyleNamedXFoundUsingY "[ass] [%p] Warning: no style named '%s' found, using '%s'\n"
|
||||
#define MSGTR_LIBASS_BadTimestamp "[ass] bad timestamp\n"
|
||||
#define MSGTR_LIBASS_BadEncodedDataSize "[ass] bad encoded data size\n"
|
||||
#define MSGTR_LIBASS_FontLineTooLong "[ass] Font line too long: %d, %s\n"
|
||||
#define MSGTR_LIBASS_EventFormatHeaderMissing "[ass] Event format header missing\n"
|
||||
#define MSGTR_LIBASS_ErrorOpeningIconvDescriptor "[ass] error opening iconv descriptor.\n"
|
||||
#define MSGTR_LIBASS_ErrorRecodingFile "[ass] error recoding file.\n"
|
||||
#define MSGTR_LIBASS_FopenFailed "[ass] ass_read_file(%s): fopen failed\n"
|
||||
#define MSGTR_LIBASS_FseekFailed "[ass] ass_read_file(%s): fseek failed\n"
|
||||
#define MSGTR_LIBASS_RefusingToLoadSubtitlesLargerThan10M "[ass] ass_read_file(%s): Refusing to load subtitles larger than 10M\n"
|
||||
#define MSGTR_LIBASS_ReadFailed "Read failed, %d: %s\n"
|
||||
#define MSGTR_LIBASS_AddedSubtitleFileMemory "[ass] Added subtitle file: <memory> (%d styles, %d events)\n"
|
||||
#define MSGTR_LIBASS_AddedSubtitleFileFname "[ass] Added subtitle file: %s (%d styles, %d events)\n"
|
||||
#define MSGTR_LIBASS_FailedToCreateDirectory "[ass] Failed to create directory %s\n"
|
||||
#define MSGTR_LIBASS_NotADirectory "[ass] Not a directory: %s\n"
|
||||
#define MSGTR_LIBASS_TooManyFonts "[ass] Too many fonts\n"
|
||||
#define MSGTR_LIBASS_ErrorOpeningFont "[ass] Error opening font: %s, %d\n"
|
||||
#define MSGTR_LIBASS_SelectedFontFamilyIsNotTheRequestedOne "[ass] fontconfig: Selected font is not the requested one: '%s' != '%s'\n"
|
||||
#define MSGTR_LIBASS_UsingDefaultFontFamily "[ass] fontconfig_select: Using default font family: (%s, %d, %d) -> %s, %d\n"
|
||||
#define MSGTR_LIBASS_UsingDefaultFont "[ass] fontconfig_select: Using default font: (%s, %d, %d) -> %s, %d\n"
|
||||
#define MSGTR_LIBASS_UsingArialFontFamily "[ass] fontconfig_select: Using 'Arial' font family: (%s, %d, %d) -> %s, %d\n"
|
||||
#define MSGTR_LIBASS_FcInitLoadConfigAndFontsFailed "[ass] FcInitLoadConfigAndFonts failed.\n"
|
||||
#define MSGTR_LIBASS_UpdatingFontCache "[ass] Updating font cache.\n"
|
||||
#define MSGTR_LIBASS_BetaVersionsOfFontconfigAreNotSupported "[ass] Beta versions of fontconfig are not supported.\n[ass] Update before reporting any bugs.\n"
|
||||
#define MSGTR_LIBASS_FcStrSetAddFailed "[ass] FcStrSetAdd failed.\n"
|
||||
#define MSGTR_LIBASS_FcDirScanFailed "[ass] FcDirScan failed.\n"
|
||||
#define MSGTR_LIBASS_FcDirSave "[ass] FcDirSave failed.\n"
|
||||
#define MSGTR_LIBASS_FcConfigAppFontAddDirFailed "[ass] FcConfigAppFontAddDir failed\n"
|
||||
#define MSGTR_LIBASS_FontconfigDisabledDefaultFontWillBeUsed "[ass] Fontconfig disabled, only default font will be used.\n"
|
||||
#define MSGTR_LIBASS_FunctionCallFailed "[ass] %s failed\n"
|
||||
#define MSGTR_LIBASS_NeitherPlayResXNorPlayResYDefined "[ass] Neither PlayResX nor PlayResY defined. Assuming 384x288.\n"
|
||||
#define MSGTR_LIBASS_PlayResYUndefinedSettingY "[ass] PlayResY undefined, setting %d.\n"
|
||||
#define MSGTR_LIBASS_PlayResXUndefinedSettingX "[ass] PlayResX undefined, setting %d.\n"
|
||||
#define MSGTR_LIBASS_FT_Init_FreeTypeFailed "[ass] FT_Init_FreeType failed.\n"
|
||||
#define MSGTR_LIBASS_Init "[ass] Init\n"
|
||||
#define MSGTR_LIBASS_InitFailed "[ass] Init failed.\n"
|
||||
#define MSGTR_LIBASS_BadCommand "[ass] Bad command: %c%c\n"
|
||||
#define MSGTR_LIBASS_ErrorLoadingGlyph "[ass] Error loading glyph.\n"
|
||||
#define MSGTR_LIBASS_FT_Glyph_Stroke_Error "[ass] FT_Glyph_Stroke error %d \n"
|
||||
#define MSGTR_LIBASS_UnknownEffectType_InternalError "[ass] Unknown effect type (internal error)\n"
|
||||
#define MSGTR_LIBASS_NoStyleFound "[ass] No style found!\n"
|
||||
#define MSGTR_LIBASS_EmptyEvent "[ass] Empty event!\n"
|
||||
#define MSGTR_LIBASS_MAX_GLYPHS_Reached "[ass] MAX_GLYPHS reached: event %d, start = %llu, duration = %llu\n Text = %s\n"
|
||||
#define MSGTR_LIBASS_EventHeightHasChanged "[ass] Warning! Event height has changed! \n"
|
||||
#define MSGTR_LIBASS_GlyphNotFoundReselectingFont "[ass] Glyph 0x%X not found, selecting one more font for (%s, %d, %d)\n"
|
||||
#define MSGTR_LIBASS_GlyphNotFound "[ass] Glyph 0x%X not found in font for (%s, %d, %d)\n"
|
||||
#define MSGTR_LIBASS_ErrorOpeningMemoryFont "[ass] Error opening memory font: %s\n"
|
||||
#define MSGTR_LIBASS_NoCharmaps "[ass] font face with no charmaps\n"
|
||||
#define MSGTR_LIBASS_NoCharmapAutodetected "[ass] no charmap autodetected, trying the first one\n"
|
||||
#endif
|
|
@ -98,9 +98,9 @@ aegisub_2_1_LDADD += libsubtitle_provider.a
|
|||
if WITH_LIBASS
|
||||
noinst_LIBRARIES += libsubtitle_ass.a
|
||||
libsubtitle_ass_a_SOURCES = subtitles_provider_libass.cpp
|
||||
libsubtitle_ass_a_CPPFLAGS = @LIBASS_CFLAGS@ @ICONV_CFLAGS@
|
||||
libsubtitle_ass_a_CPPFLAGS = @LIBASS_CFLAGS@
|
||||
LIBS += @LIBASS_LIBS@
|
||||
aegisub_2_1_LDADD += libsubtitle_ass.a @FONTCONFIG_LIBS@
|
||||
aegisub_2_1_LDADD += libsubtitle_ass.a
|
||||
endif
|
||||
|
||||
if HAVE_AUTO4_LUA
|
||||
|
@ -342,7 +342,7 @@ aegisub_2_1_SOURCES = \
|
|||
aegisub_2_1_SOURCES += \
|
||||
$(srcdir)/*.h \
|
||||
$(srcdir)/include/aegisub/*.h \
|
||||
$(srcdir)/config/*.h
|
||||
$(srcdir)/config/*.h
|
||||
|
||||
noinst_HEADERS = \
|
||||
$(srcdir)/boost/*.hpp \
|
||||
|
@ -352,3 +352,4 @@ noinst_HEADERS = \
|
|||
EXTRA_DIST = \
|
||||
auto4_perldata.inc \
|
||||
$(srcdir)/*.hxx
|
||||
|
||||
|
|
|
@ -44,7 +44,7 @@ extern "C" {
|
|||
#include "stdint.h"
|
||||
#endif
|
||||
|
||||
#include "../libass/ass.h"
|
||||
#include <ass/ass.h>
|
||||
}
|
||||
|
||||
///////////////////
|
||||
|
|
Loading…
Reference in New Issue