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Update libass to 15df37.

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Originally committed to SVN as r3102.
This commit is contained in:
Amar Takhar 2009-07-11 15:48:50 +00:00
parent 1ec77b7576
commit 516db6c901
22 changed files with 6208 additions and 4345 deletions
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18
aegisub/libass/Makefile.am
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@ -10,24 +10,16 @@ libass_aegisub_a_SOURCES = \
ass.c \ ass.c \
ass_bitmap.c \ ass_bitmap.c \
ass_cache.c \ ass_cache.c \
ass_drawing.c \
ass_font.c \ ass_font.c \
ass_fontconfig.c \ ass_fontconfig.c \
ass_library.c \ ass_library.c \
ass_render.c \ ass_render.c \
ass_utils.c \ ass_utils.c \
mputils.c \ mputils.c
ass.h \
ass_bitmap.h \ libass_aegisub_a_SOURCES += \
ass_cache.h \ *.h
ass_font.h \
ass_fontconfig.h \
ass_library.h \
ass_types.h \
ass_utils.h \
help_mp.h \
libass_msvc.patch \
mputils.h \
msvc.h
EXTRA_DIST= \ EXTRA_DIST= \
ass_cache_template.c ass_cache_template.c

1738
aegisub/libass/ass.c
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File diff suppressed because it is too large Load diff

106
aegisub/libass/ass.h
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@ -1,5 +1,3 @@
// -*- c-basic-offset: 8; indent-tabs-mode: t -*-
// vim:ts=8:sw=8:noet:ai:
/* /*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com> * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
* *
@ -31,74 +29,75 @@ typedef struct ass_renderer_s ass_renderer_t;
/// a linked list of images produced by ass renderer /// a linked list of images produced by ass renderer
typedef struct ass_image_s { typedef struct ass_image_s {
int w, h; // bitmap width/height int w, h; // bitmap width/height
int stride; // bitmap stride int stride; // bitmap stride
unsigned char* bitmap; // 1bpp stride*h alpha buffer unsigned char *bitmap; // 1bpp stride*h alpha buffer
uint32_t color; // RGBA uint32_t color; // RGBA
int dst_x, dst_y; // bitmap placement inside the video frame int dst_x, dst_y; // bitmap placement inside the video frame
struct ass_image_s* next; // linked list struct ass_image_s *next; // linked list
} ass_image_t; } ass_image_t;
/// Hinting type /// Hinting type
typedef enum {ASS_HINTING_NONE = 0, typedef enum { ASS_HINTING_NONE = 0,
ASS_HINTING_LIGHT, ASS_HINTING_LIGHT,
ASS_HINTING_NORMAL, ASS_HINTING_NORMAL,
ASS_HINTING_NATIVE ASS_HINTING_NATIVE
} ass_hinting_t; } ass_hinting_t;
/** /**
* \brief initialize the library * \brief initialize the library
* \return library handle or NULL if failed * \return library handle or NULL if failed
*/ */
ass_library_t* ass_library_init(void); ass_library_t *ass_library_init(void);
/** /**
* \brief finalize the library * \brief finalize the library
* \param priv library handle * \param priv library handle
*/ */
void ass_library_done(ass_library_t*); void ass_library_done(ass_library_t *);
/** /**
* \brief set private font directory * \brief set private font directory
* It is used for saving embedded fonts and also in font lookup. * It is used for saving embedded fonts and also in font lookup.
*/ */
void ass_set_fonts_dir(ass_library_t* priv, const char* fonts_dir); void ass_set_fonts_dir(ass_library_t *priv, const char *fonts_dir);
void ass_set_extract_fonts(ass_library_t* priv, int extract); void ass_set_extract_fonts(ass_library_t *priv, int extract);
void ass_set_style_overrides(ass_library_t* priv, char** list); void ass_set_style_overrides(ass_library_t *priv, char **list);
void ass_process_force_style(ass_track_t *track);
/** /**
* \brief initialize the renderer * \brief initialize the renderer
* \param priv library handle * \param priv library handle
* \return renderer handle or NULL if failed * \return renderer handle or NULL if failed
*/ */
ass_renderer_t* ass_renderer_init(ass_library_t*); ass_renderer_t *ass_renderer_init(ass_library_t *);
/** /**
* \brief finalize the renderer * \brief finalize the renderer
* \param priv renderer handle * \param priv renderer handle
*/ */
void ass_renderer_done(ass_renderer_t* priv); void ass_renderer_done(ass_renderer_t *priv);
void ass_set_frame_size(ass_renderer_t* priv, int w, int h); void ass_set_frame_size(ass_renderer_t *priv, int w, int h);
void ass_set_margins(ass_renderer_t* priv, int t, int b, int l, int r); void ass_set_margins(ass_renderer_t *priv, int t, int b, int l, int r);
void ass_set_use_margins(ass_renderer_t* priv, int use); void ass_set_use_margins(ass_renderer_t *priv, int use);
void ass_set_aspect_ratio(ass_renderer_t* priv, double ar); void ass_set_aspect_ratio(ass_renderer_t *priv, double ar, double par);
void ass_set_font_scale(ass_renderer_t* priv, double font_scale); void ass_set_font_scale(ass_renderer_t *priv, double font_scale);
void ass_set_hinting(ass_renderer_t* priv, ass_hinting_t ht); void ass_set_hinting(ass_renderer_t *priv, ass_hinting_t ht);
void ass_set_line_spacing(ass_renderer_t* priv, double line_spacing); void ass_set_line_spacing(ass_renderer_t *priv, double line_spacing);
/** /**
* \brief set font lookup defaults * \brief set font lookup defaults
* \param fc bool, use fontconfig?
* \param config path to fontconfig configuration file, or NULL. Only matters
* if fontconfig is used
*/ */
int ass_set_fonts(ass_renderer_t* priv, const char* default_font, const char* default_family); int ass_set_fonts(ass_renderer_t *priv, const char *default_font,
const char *default_family, int fc, const char *config);
/**
* \brief set font lookup defaults, don't use fontconfig even if it is available
*/
int ass_set_fonts_nofc(ass_renderer_t* priv, const char* default_font, const char* default_family);
/** /**
* \brief render a frame, producing a list of ass_image_t * \brief render a frame, producing a list of ass_image_t
@ -106,7 +105,8 @@ int ass_set_fonts_nofc(ass_renderer_t* priv, const char* default_font, const ch
* \param track subtitle track * \param track subtitle track
* \param now video timestamp in milliseconds * \param now video timestamp in milliseconds
*/ */
ass_image_t* ass_render_frame(ass_renderer_t *priv, ass_track_t* track, long long now, int* detect_change); ass_image_t *ass_render_frame(ass_renderer_t *priv, ass_track_t *track,
long long now, int *detect_change);
// The following functions operate on track objects and do not need an ass_renderer // // The following functions operate on track objects and do not need an ass_renderer //
@ -115,27 +115,27 @@ ass_image_t* ass_render_frame(ass_renderer_t *priv, ass_track_t* track, long lon
* \brief allocate a new empty track object * \brief allocate a new empty track object
* \return pointer to empty track * \return pointer to empty track
*/ */
ass_track_t* ass_new_track(ass_library_t*); ass_track_t *ass_new_track(ass_library_t *);
/** /**
* \brief deallocate track and all its child objects (styles and events) * \brief deallocate track and all its child objects (styles and events)
* \param track track to deallocate * \param track track to deallocate
*/ */
void ass_free_track(ass_track_t* track); void ass_free_track(ass_track_t *track);
/** /**
* \brief allocate new style * \brief allocate new style
* \param track track * \param track track
* \return newly allocated style id * \return newly allocated style id
*/ */
int ass_alloc_style(ass_track_t* track); int ass_alloc_style(ass_track_t *track);
/** /**
* \brief allocate new event * \brief allocate new event
* \param track track * \param track track
* \return newly allocated event id * \return newly allocated event id
*/ */
int ass_alloc_event(ass_track_t* track); int ass_alloc_event(ass_track_t *track);
/** /**
* \brief delete a style * \brief delete a style
@ -143,7 +143,7 @@ int ass_alloc_event(ass_track_t* track);
* \param sid style id * \param sid style id
* Deallocates style data. Does not modify track->n_styles. * Deallocates style data. Does not modify track->n_styles.
*/ */
void ass_free_style(ass_track_t* track, int sid); void ass_free_style(ass_track_t *track, int sid);
/** /**
* \brief delete an event * \brief delete an event
@ -151,7 +151,7 @@ void ass_free_style(ass_track_t* track, int sid);
* \param eid event id * \param eid event id
* Deallocates event data. Does not modify track->n_events. * Deallocates event data. Does not modify track->n_events.
*/ */
void ass_free_event(ass_track_t* track, int eid); void ass_free_event(ass_track_t *track, int eid);
/** /**
* \brief Parse a chunk of subtitle stream data. * \brief Parse a chunk of subtitle stream data.
@ -159,7 +159,7 @@ void ass_free_event(ass_track_t* track, int eid);
* \param data string to parse * \param data string to parse
* \param size length of data * \param size length of data
*/ */
void ass_process_data(ass_track_t* track, char* data, int size); void ass_process_data(ass_track_t *track, char *data, int size);
/** /**
* \brief Parse Codec Private section of subtitle stream * \brief Parse Codec Private section of subtitle stream
@ -167,7 +167,7 @@ void ass_process_data(ass_track_t* track, char* data, int size);
* \param data string to parse * \param data string to parse
* \param size length of data * \param size length of data
*/ */
void ass_process_codec_private(ass_track_t* track, char *data, int size); void ass_process_codec_private(ass_track_t *track, char *data, int size);
/** /**
* \brief Parse a chunk of subtitle stream data. In Matroska, this contains exactly 1 event (or a commentary). * \brief Parse a chunk of subtitle stream data. In Matroska, this contains exactly 1 event (or a commentary).
@ -177,16 +177,16 @@ void ass_process_codec_private(ass_track_t* track, char *data, int size);
* \param timecode starting time of the event (milliseconds) * \param timecode starting time of the event (milliseconds)
* \param duration duration of the event (milliseconds) * \param duration duration of the event (milliseconds)
*/ */
void ass_process_chunk(ass_track_t* track, char *data, int size, long long timecode, long long duration); void ass_process_chunk(ass_track_t *track, char *data, int size,
long long timecode, long long duration);
char* read_file_recode(char* fname, char* codepage, size_t* size);
/** /**
* \brief Read subtitles from file. * \brief Read subtitles from file.
* \param fname file name * \param fname file name
* \return newly allocated track * \return newly allocated track
*/ */
ass_track_t* ass_read_file(ass_library_t* library, char* fname, char* codepage); ass_track_t *ass_read_file(ass_library_t *library, char *fname,
char *codepage);
/** /**
* \brief Read subtitles from memory. * \brief Read subtitles from memory.
@ -195,13 +195,14 @@ ass_track_t* ass_read_file(ass_library_t* library, char* fname, char* codepage);
* \param bufsize size of buffer * \param bufsize size of buffer
* \param codepage recode buffer contents from given codepage * \param codepage recode buffer contents from given codepage
* \return newly allocated track * \return newly allocated track
*/ */
ass_track_t* ass_read_memory(ass_library_t* library, char* buf, size_t bufsize, char* codepage); ass_track_t *ass_read_memory(ass_library_t *library, char *buf,
size_t bufsize, char *codepage);
/** /**
* \brief read styles from file into already initialized track * \brief read styles from file into already initialized track
* \return 0 on success * \return 0 on success
*/ */
int ass_read_styles(ass_track_t* track, char* fname, char* codepage); int ass_read_styles(ass_track_t *track, char *fname, char *codepage);
/** /**
* \brief Add a memory font. * \brief Add a memory font.
@ -209,12 +210,13 @@ int ass_read_styles(ass_track_t* track, char* fname, char* codepage);
* \param data binary font data * \param data binary font data
* \param data_size data size * \param data_size data size
*/ */
void ass_add_font(ass_library_t* library, char* name, char* data, int data_size); void ass_add_font(ass_library_t *library, char *name, char *data,
int data_size);
/** /**
* \brief Remove all fonts stored in ass_library object * \brief Remove all fonts stored in ass_library object
*/ */
void ass_clear_fonts(ass_library_t* library); void ass_clear_fonts(ass_library_t *library);
/** /**
* \brief Calculates timeshift from now to the start of some other subtitle event, depending on movement parameter * \brief Calculates timeshift from now to the start of some other subtitle event, depending on movement parameter
@ -224,6 +226,6 @@ void ass_clear_fonts(ass_library_t* library);
* +2 means "the one after the next", -1 means "previous" * +2 means "the one after the next", -1 means "previous"
* \return timeshift, ms * \return timeshift, ms
*/ */
long long ass_step_sub(ass_track_t* track, long long now, int movement); long long ass_step_sub(ass_track_t *track, long long now, int movement);
#endif /* LIBASS_ASS_H */ #endif /* LIBASS_ASS_H */

557
aegisub/libass/ass_bitmap.c
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@ -1,5 +1,3 @@
// -*- c-basic-offset: 8; indent-tabs-mode: t -*-
// vim:ts=8:sw=8:noet:ai:
/* /*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com> * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
* *
@ -27,195 +25,207 @@
#include <ft2build.h> #include <ft2build.h>
#include FT_GLYPH_H #include FT_GLYPH_H
#include "mputils.h" #include "ass_utils.h"
#include "ass_bitmap.h" #include "ass_bitmap.h"
struct ass_synth_priv_s { struct ass_synth_priv_s {
int tmp_w, tmp_h; int tmp_w, tmp_h;
unsigned short* tmp; unsigned short *tmp;
int g_r; int g_r;
int g_w; int g_w;
unsigned *g; unsigned *g;
unsigned *gt2; unsigned *gt2;
double radius; double radius;
}; };
static const unsigned int maxcolor = 255; static const unsigned int maxcolor = 255;
static const unsigned base = 256; static const unsigned base = 256;
static int generate_tables(ass_synth_priv_t* priv, double radius) static int generate_tables(ass_synth_priv_t *priv, double radius)
{ {
double A = log(1.0/base)/(radius*radius*2); double A = log(1.0 / base) / (radius * radius * 2);
int mx, i; int mx, i;
double volume_diff, volume_factor = 0; double volume_diff, volume_factor = 0;
unsigned volume; unsigned volume;
if (priv->radius == radius) if (priv->radius == radius)
return 0; return 0;
else else
priv->radius = radius; priv->radius = radius;
priv->g_r = ceil(radius); priv->g_r = ceil(radius);
priv->g_w = 2*priv->g_r+1; priv->g_w = 2 * priv->g_r + 1;
if (priv->g_r) { if (priv->g_r) {
priv->g = realloc(priv->g, priv->g_w * sizeof(unsigned)); priv->g = realloc(priv->g, priv->g_w * sizeof(unsigned));
priv->gt2 = realloc(priv->gt2, 256 * priv->g_w * sizeof(unsigned)); priv->gt2 = realloc(priv->gt2, 256 * priv->g_w * sizeof(unsigned));
if (priv->g==NULL || priv->gt2==NULL) { if (priv->g == NULL || priv->gt2 == NULL) {
return -1; return -1;
} }
} }
if (priv->g_r) { if (priv->g_r) {
// gaussian curve with volume = 256 // gaussian curve with volume = 256
for (volume_diff=10000000; volume_diff>0.0000001; volume_diff*=0.5){ for (volume_diff = 10000000; volume_diff > 0.0000001;
volume_factor+= volume_diff; volume_diff *= 0.5) {
volume=0; volume_factor += volume_diff;
for (i = 0; i<priv->g_w; ++i) { volume = 0;
priv->g[i] = (unsigned)(exp(A * (i-priv->g_r)*(i-priv->g_r)) * volume_factor + .5); for (i = 0; i < priv->g_w; ++i) {
volume+= priv->g[i]; priv->g[i] =
} (unsigned) (exp(A * (i - priv->g_r) * (i - priv->g_r)) *
if(volume>256) volume_factor-= volume_diff; volume_factor + .5);
} volume += priv->g[i];
volume=0; }
for (i = 0; i<priv->g_w; ++i) { if (volume > 256)
priv->g[i] = (unsigned)(exp(A * (i-priv->g_r)*(i-priv->g_r)) * volume_factor + .5); volume_factor -= volume_diff;
volume+= priv->g[i]; }
} 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: // gauss table:
for(mx=0;mx<priv->g_w;mx++){ for (mx = 0; mx < priv->g_w; mx++) {
for(i=0;i<256;i++){ for (i = 0; i < 256; i++) {
priv->gt2[mx+i*priv->g_w] = i*priv->g[mx]; priv->gt2[mx + i * priv->g_w] = i * priv->g[mx];
} }
} }
} }
return 0; return 0;
} }
static void resize_tmp(ass_synth_priv_t* priv, int w, int h) static void resize_tmp(ass_synth_priv_t *priv, int w, int h)
{ {
if (priv->tmp_w >= w && priv->tmp_h >= h) if (priv->tmp_w >= w && priv->tmp_h >= h)
return; return;
if (priv->tmp_w == 0) if (priv->tmp_w == 0)
priv->tmp_w = 64; priv->tmp_w = 64;
if (priv->tmp_h == 0) if (priv->tmp_h == 0)
priv->tmp_h = 64; priv->tmp_h = 64;
while (priv->tmp_w < w) priv->tmp_w *= 2; while (priv->tmp_w < w)
while (priv->tmp_h < h) priv->tmp_h *= 2; priv->tmp_w *= 2;
if (priv->tmp) while (priv->tmp_h < h)
free(priv->tmp); priv->tmp_h *= 2;
priv->tmp = malloc((priv->tmp_w + 1) * priv->tmp_h * sizeof(short)); if (priv->tmp)
free(priv->tmp);
priv->tmp = malloc((priv->tmp_w + 1) * priv->tmp_h * sizeof(short));
} }
ass_synth_priv_t* ass_synth_init(double radius) ass_synth_priv_t *ass_synth_init(double radius)
{ {
ass_synth_priv_t* priv = calloc(1, sizeof(ass_synth_priv_t)); ass_synth_priv_t *priv = calloc(1, sizeof(ass_synth_priv_t));
generate_tables(priv, radius); generate_tables(priv, radius);
return priv; return priv;
} }
void ass_synth_done(ass_synth_priv_t* priv) void ass_synth_done(ass_synth_priv_t *priv)
{ {
if (priv->tmp) if (priv->tmp)
free(priv->tmp); free(priv->tmp);
if (priv->g) if (priv->g)
free(priv->g); free(priv->g);
if (priv->gt2) if (priv->gt2)
free(priv->gt2); free(priv->gt2);
free(priv); free(priv);
} }
static bitmap_t* alloc_bitmap(int w, int h) static bitmap_t *alloc_bitmap(int w, int h)
{ {
bitmap_t* bm; bitmap_t *bm;
bm = calloc(1, sizeof(bitmap_t)); bm = calloc(1, sizeof(bitmap_t));
bm->buffer = malloc(w*h); bm->buffer = malloc(w * h);
bm->w = w; bm->w = w;
bm->h = h; bm->h = h;
bm->left = bm->top = 0; bm->left = bm->top = 0;
return bm; return bm;
} }
void ass_free_bitmap(bitmap_t* bm) void ass_free_bitmap(bitmap_t *bm)
{ {
if (bm) { if (bm) {
if (bm->buffer) free(bm->buffer); if (bm->buffer)
free(bm); free(bm->buffer);
} free(bm);
}
} }
static bitmap_t* copy_bitmap(const bitmap_t* src) static bitmap_t *copy_bitmap(const bitmap_t *src)
{ {
bitmap_t* dst = alloc_bitmap(src->w, src->h); bitmap_t *dst = alloc_bitmap(src->w, src->h);
dst->left = src->left; dst->left = src->left;
dst->top = src->top; dst->top = src->top;
memcpy(dst->buffer, src->buffer, src->w * src->h); memcpy(dst->buffer, src->buffer, src->w * src->h);
return dst; return dst;
} }
static int check_glyph_area(FT_Glyph glyph) static int check_glyph_area(FT_Glyph glyph)
{ {
FT_BBox bbox; FT_BBox bbox;
long long dx, dy; long long dx, dy;
FT_Glyph_Get_CBox(glyph, FT_GLYPH_BBOX_TRUNCATE, &bbox); FT_Glyph_Get_CBox(glyph, FT_GLYPH_BBOX_TRUNCATE, &bbox);
dx = bbox.xMax - bbox.xMin; dx = bbox.xMax - bbox.xMin;
dy = bbox.yMax - bbox.yMin; dy = bbox.yMax - bbox.yMin;
if (dx * dy > 8000000) { if (dx * dy > 8000000) {
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_GlyphBBoxTooLarge, (int)dx, (int)dy); ass_msg(MSGL_WARN, MSGTR_LIBASS_GlyphBBoxTooLarge,
return 1; (int) dx, (int) dy);
} else return 1;
return 0; } else
return 0;
} }
static bitmap_t* glyph_to_bitmap_internal(FT_Glyph glyph, int bord) static bitmap_t *glyph_to_bitmap_internal(FT_Glyph glyph, int bord)
{ {
FT_BitmapGlyph bg; FT_BitmapGlyph bg;
FT_Bitmap* bit; FT_Bitmap *bit;
bitmap_t* bm; bitmap_t *bm;
int w, h; int w, h;
unsigned char* src; unsigned char *src;
unsigned char* dst; unsigned char *dst;
int i; int i;
int error; int error;
if (check_glyph_area(glyph)) if (check_glyph_area(glyph))
return 0; return 0;
error = FT_Glyph_To_Bitmap(&glyph, FT_RENDER_MODE_NORMAL, 0, 0); error = FT_Glyph_To_Bitmap(&glyph, FT_RENDER_MODE_NORMAL, 0, 0);
if (error) { if (error) {
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_FT_Glyph_To_BitmapError, error); ass_msg(MSGL_WARN, MSGTR_LIBASS_FT_Glyph_To_BitmapError,
return 0; error);
} return 0;
}
bg = (FT_BitmapGlyph)glyph; bg = (FT_BitmapGlyph) glyph;
bit = &(bg->bitmap); bit = &(bg->bitmap);
if (bit->pixel_mode != FT_PIXEL_MODE_GRAY) { if (bit->pixel_mode != FT_PIXEL_MODE_GRAY) {
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_UnsupportedPixelMode, (int)(bit->pixel_mode)); ass_msg(MSGL_WARN, MSGTR_LIBASS_UnsupportedPixelMode,
FT_Done_Glyph(glyph); (int) (bit->pixel_mode));
return 0; FT_Done_Glyph(glyph);
} return 0;
}
w = bit->width; w = bit->width;
h = bit->rows; h = bit->rows;
bm = alloc_bitmap(w + 2*bord, h + 2*bord); bm = alloc_bitmap(w + 2 * bord, h + 2 * bord);
memset(bm->buffer, 0, bm->w * bm->h); memset(bm->buffer, 0, bm->w * bm->h);
bm->left = bg->left - bord; bm->left = bg->left - bord;
bm->top = - bg->top - bord; bm->top = -bg->top - bord;
src = bit->buffer; src = bit->buffer;
dst = bm->buffer + bord + bm->w * bord; dst = bm->buffer + bord + bm->w * bord;
for (i = 0; i < h; ++i) { for (i = 0; i < h; ++i) {
memcpy(dst, src, w); memcpy(dst, src, w);
src += bit->pitch; src += bit->pitch;
dst += bm->w; dst += bm->w;
} }
FT_Done_Glyph(glyph); FT_Done_Glyph(glyph);
return bm; return bm;
} }
/** /**
@ -224,114 +234,183 @@ static bitmap_t* glyph_to_bitmap_internal(FT_Glyph glyph, int bord)
* 1. Glyph bitmap is subtracted from outline bitmap. This way looks much better in some cases. * 1. Glyph bitmap is subtracted from outline bitmap. This way looks much better in some cases.
* 2. Shadow bitmap is created as a sum of glyph and outline bitmaps. * 2. Shadow bitmap is created as a sum of glyph and outline bitmaps.
*/ */
static bitmap_t* fix_outline_and_shadow(bitmap_t* bm_g, bitmap_t* bm_o) static bitmap_t *fix_outline_and_shadow(bitmap_t *bm_g, bitmap_t *bm_o)
{ {
int x, y; int x, y;
const int l = bm_o->left > bm_g->left ? bm_o->left : bm_g->left; 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 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 r =
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; 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;
bitmap_t* bm_s = copy_bitmap(bm_o); bitmap_t *bm_s = copy_bitmap(bm_o);
unsigned char* g = bm_g->buffer + (t - bm_g->top) * bm_g->w + (l - bm_g->left); unsigned char *g =
unsigned char* o = bm_o->buffer + (t - bm_o->top) * bm_o->w + (l - bm_o->left); bm_g->buffer + (t - bm_g->top) * bm_g->w + (l - bm_g->left);
unsigned char* s = bm_s->buffer + (t - bm_s->top) * bm_s->w + (l - bm_s->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) { unsigned char *s =
for (x = 0; x < r - l; ++x) { bm_s->buffer + (t - bm_s->top) * bm_s->w + (l - bm_s->left);
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;
s[x] = (c_o < 0xFF - c_g) ? c_o + c_g : 0xFF;
}
g += bm_g->w;
o += bm_o->w;
s += bm_s->w;
}
assert(bm_s); for (y = 0; y < b - t; ++y) {
return bm_s; 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;
s[x] = (c_o < 0xFF - c_g) ? c_o + c_g : 0xFF;
}
g += bm_g->w;
o += bm_o->w;
s += bm_s->w;
}
assert(bm_s);
return bm_s;
}
/**
* \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;
}
}
}
} }
/** /**
* \brief Blur with [[1,2,1]. [2,4,2], [1,2,1]] kernel * \brief Blur with [[1,2,1]. [2,4,2], [1,2,1]] kernel
* This blur is the same as the one employed by vsfilter. * This blur is the same as the one employed by vsfilter.
*/ */
static void be_blur(unsigned char *buf, int w, int h) { 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_synth_priv_t* priv_blur,
FT_Glyph glyph, FT_Glyph outline_glyph, bitmap_t** bm_g,
bitmap_t** bm_o, bitmap_t** bm_s, int be, double blur_radius)
{ {
int bord = be ? (be/4+1) : 0; unsigned int x, y;
blur_radius *= 2; unsigned int old_sum, new_sum;
bord = (blur_radius > 0.0) ? blur_radius : bord;
assert(bm_g && bm_o && bm_s); 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;
}
}
*bm_g = *bm_o = *bm_s = 0; for (x = 0; x < w; x++) {
old_sum = 2 * buf[x];
if (glyph) for (y = 0; y < h - 1; y++) {
*bm_g = glyph_to_bitmap_internal(glyph, bord); new_sum = buf[y * w + x] + buf[(y + 1) * w + x];
if (!*bm_g) buf[y * w + x] = (old_sum + new_sum) >> 2;
return 1; old_sum = new_sum;
}
if (outline_glyph) { }
*bm_o = glyph_to_bitmap_internal(outline_glyph, bord);
if (!*bm_o) {
ass_free_bitmap(*bm_g);
return 1;
}
}
if (*bm_o)
resize_tmp(priv_blur, (*bm_o)->w, (*bm_o)->h);
resize_tmp(priv_blur, (*bm_g)->w, (*bm_g)->h);
if (be) {
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);
}
} else {
if (blur_radius > 0.0) {
generate_tables(priv_blur, blur_radius);
if (*bm_o)
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
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);
}
}
if (*bm_o)
*bm_s = fix_outline_and_shadow(*bm_g, *bm_o);
else
*bm_s = copy_bitmap(*bm_g);
assert(bm_s);
return 0;
} }
int glyph_to_bitmap(ass_synth_priv_t *priv_blur,
FT_Glyph glyph, FT_Glyph outline_glyph,
bitmap_t **bm_g, bitmap_t **bm_o, bitmap_t **bm_s,
int be, double blur_radius, FT_Vector shadow_offset)
{
int bord = be ? (be / 4 + 1) : 0;
blur_radius *= 2;
bord = (blur_radius > 0.0) ? blur_radius + 1 : bord;
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(glyph, bord);
if (!*bm_g)
return 1;
if (outline_glyph) {
*bm_o = glyph_to_bitmap_internal(outline_glyph, bord);
if (!*bm_o) {
ass_free_bitmap(*bm_g);
return 1;
}
}
if (*bm_o)
resize_tmp(priv_blur, (*bm_o)->w, (*bm_o)->h);
resize_tmp(priv_blur, (*bm_g)->w, (*bm_g)->h);
if (be) {
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);
}
} else {
if (blur_radius > 0.0) {
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);
}
}
if (*bm_o)
*bm_s = fix_outline_and_shadow(*bm_g, *bm_o);
else
*bm_s = copy_bitmap(*bm_g);
shift_bitmap((*bm_s)->buffer, (*bm_s)->w,(*bm_s)->h,
shadow_offset.x, shadow_offset.y);
assert(bm_s);
return 0;
}

21
aegisub/libass/ass_bitmap.h
View file

@ -1,5 +1,3 @@
// -*- c-basic-offset: 8; indent-tabs-mode: t -*-
// vim:ts=8:sw=8:noet:ai:
/* /*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com> * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
* *
@ -28,13 +26,13 @@
typedef struct ass_synth_priv_s ass_synth_priv_t; typedef struct ass_synth_priv_s ass_synth_priv_t;
ass_synth_priv_t* ass_synth_init(double); ass_synth_priv_t *ass_synth_init(double);
void ass_synth_done(ass_synth_priv_t* priv); void ass_synth_done(ass_synth_priv_t *priv);
typedef struct bitmap_s { typedef struct bitmap_s {
int left, top; int left, top;
int w, h; // width, height int w, h; // width, height
unsigned char* buffer; // w x h buffer unsigned char *buffer; // w x h buffer
} bitmap_t; } bitmap_t;
/** /**
@ -46,8 +44,11 @@ typedef struct bitmap_s {
* \param bm_g out: pointer to the bitmap of glyph shadow 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 * \param be 1 = produces blurred bitmaps, 0 = normal bitmaps
*/ */
int glyph_to_bitmap(ass_synth_priv_t* priv_blur, FT_Glyph glyph, FT_Glyph outline_glyph, bitmap_t** bm_g, bitmap_t** bm_o, bitmap_t** bm_s, int be, double blur_radius); int glyph_to_bitmap(ass_synth_priv_t *priv_blur, FT_Glyph glyph,
FT_Glyph outline_glyph, bitmap_t **bm_g,
bitmap_t **bm_o, bitmap_t **bm_s, int be,
double blur_radius, FT_Vector shadow_offset);
void ass_free_bitmap(bitmap_t* bm); void ass_free_bitmap(bitmap_t *bm);
#endif /* LIBASS_BITMAP_H */ #endif /* LIBASS_BITMAP_H */

412
aegisub/libass/ass_cache.c
View file

@ -1,5 +1,3 @@
// -*- c-basic-offset: 8; indent-tabs-mode: t -*-
// vim:ts=8:sw=8:noet:ai:
/* /*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com> * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
* *
@ -29,205 +27,170 @@
#include <assert.h> #include <assert.h>
#include "mputils.h" #include "ass_utils.h"
#include "ass.h" #include "ass.h"
#include "ass_fontconfig.h" #include "ass_fontconfig.h"
#include "ass_font.h" #include "ass_font.h"
#include "ass_bitmap.h" #include "ass_bitmap.h"
#include "ass_cache.h" #include "ass_cache.h"
static unsigned hashmap_hash(void *buf, size_t len)
typedef struct hashmap_item_s {
void* key;
void* value;
struct hashmap_item_s* next;
} hashmap_item_t;
typedef hashmap_item_t* hashmap_item_p;
struct hashmap_s {
int nbuckets;
size_t key_size, value_size;
hashmap_item_p* root;
hashmap_item_dtor_t item_dtor; // a destructor for hashmap key/value pairs
hashmap_key_compare_t key_compare;
hashmap_hash_t hash;
// stats
int hit_count;
int miss_count;
int count;
};
#define FNV1_32A_INIT (unsigned)0x811c9dc5
static inline unsigned fnv_32a_buf(void* buf, size_t len, unsigned hval)
{ {
unsigned char *bp = buf; return fnv_32a_buf(buf, len, FNV1_32A_INIT);
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;
} }
static unsigned hashmap_hash(void* buf, size_t len) static int hashmap_key_compare(void *a, void *b, size_t size)
{ {
return fnv_32a_buf(buf, len, FNV1_32A_INIT); return memcmp(a, b, size) == 0;
} }
static int hashmap_key_compare(void* a, void* b, size_t size) static void hashmap_item_dtor(void *key, size_t key_size, void *value,
size_t value_size)
{ {
return memcmp(a, b, size) == 0; free(key);
free(value);
} }
static void hashmap_item_dtor(void* key, size_t key_size, void* value, size_t value_size) hashmap_t *hashmap_init(size_t key_size, size_t value_size, int nbuckets,
hashmap_item_dtor_t item_dtor,
hashmap_key_compare_t key_compare,
hashmap_hash_t hash)
{ {
free(key); hashmap_t *map = calloc(1, sizeof(hashmap_t));
free(value); 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;
} }
hashmap_t* hashmap_init(size_t key_size, size_t value_size, int nbuckets, void hashmap_done(hashmap_t *map)
hashmap_item_dtor_t item_dtor, hashmap_key_compare_t key_compare,
hashmap_hash_t hash)
{ {
hashmap_t* map = calloc(1, sizeof(hashmap_t)); int i;
map->nbuckets = nbuckets; // print stats
map->key_size = key_size; if (map->count > 0 || map->hit_count + map->miss_count > 0)
map->value_size = value_size; ass_msg(MSGL_V,
map->root = calloc(nbuckets, sizeof(hashmap_item_p)); "cache statistics: \n total accesses: %d\n hits: %d\n misses: %d\n object count: %d\n",
map->item_dtor = item_dtor ? item_dtor : hashmap_item_dtor; map->hit_count + map->miss_count, map->hit_count,
map->key_compare = key_compare ? key_compare : hashmap_key_compare; map->miss_count, map->count);
map->hash = hash ? hash : hashmap_hash;
return map;
}
void hashmap_done(hashmap_t* map) for (i = 0; i < map->nbuckets; ++i) {
{ hashmap_item_t *item = map->root[i];
int i; while (item) {
// print stats hashmap_item_t *next = item->next;
if (map->count > 0 || map->hit_count + map->miss_count > 0) map->item_dtor(item->key, map->key_size, item->value,
mp_msg(MSGT_ASS, MSGL_V, "cache statistics: \n total accesses: %d\n hits: %d\n misses: %d\n object count: %d\n", map->value_size);
map->hit_count + map->miss_count, map->hit_count, map->miss_count, map->count); free(item);
item = next;
for (i = 0; i < map->nbuckets; ++i) { }
hashmap_item_t* item = map->root[i]; }
while (item) { free(map->root);
hashmap_item_t* next = item->next; free(map);
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 // does nothing if key already exists
void* hashmap_insert(hashmap_t* map, void* key, void* value) void *hashmap_insert(hashmap_t *map, void *key, void *value)
{ {
unsigned hash = map->hash(key, map->key_size); unsigned hash = map->hash(key, map->key_size);
hashmap_item_t** next = map->root + (hash % map->nbuckets); hashmap_item_t **next = map->root + (hash % map->nbuckets);
while (*next) { while (*next) {
if (map->key_compare(key, (*next)->key, map->key_size)) if (map->key_compare(key, (*next)->key, map->key_size))
return (*next)->value; return (*next)->value;
next = &((*next)->next); next = &((*next)->next);
assert(next); assert(next);
} }
(*next) = malloc(sizeof(hashmap_item_t)); (*next) = malloc(sizeof(hashmap_item_t));
(*next)->key = malloc(map->key_size); (*next)->key = malloc(map->key_size);
(*next)->value = malloc(map->value_size); (*next)->value = malloc(map->value_size);
memcpy((*next)->key, key, map->key_size); memcpy((*next)->key, key, map->key_size);
memcpy((*next)->value, value, map->value_size); memcpy((*next)->value, value, map->value_size);
(*next)->next = 0; (*next)->next = 0;
map->count ++; map->count++;
return (*next)->value; return (*next)->value;
} }
void* hashmap_find(hashmap_t* map, void* key) void *hashmap_find(hashmap_t *map, void *key)
{ {
unsigned hash = map->hash(key, map->key_size); unsigned hash = map->hash(key, map->key_size);
hashmap_item_t* item = map->root[hash % map->nbuckets]; hashmap_item_t *item = map->root[hash % map->nbuckets];
while (item) { while (item) {
if (map->key_compare(key, item->key, map->key_size)) { if (map->key_compare(key, item->key, map->key_size)) {
map->hit_count++; map->hit_count++;
return item->value; return item->value;
} }
item = item->next; item = item->next;
} }
map->miss_count++; map->miss_count++;
return 0; return 0;
} }
//--------------------------------- //---------------------------------
// font cache // font cache
hashmap_t* font_cache; static unsigned font_desc_hash(void *buf, size_t len)
static unsigned font_desc_hash(void* buf, size_t len)
{ {
ass_font_desc_t* desc = buf; ass_font_desc_t *desc = buf;
unsigned hval; unsigned hval;
hval = fnv_32a_str(desc->family, FNV1_32A_INIT); hval = fnv_32a_str(desc->family, FNV1_32A_INIT);
hval = fnv_32a_buf(&desc->bold, sizeof(desc->bold), hval); hval = fnv_32a_buf(&desc->bold, sizeof(desc->bold), hval);
hval = fnv_32a_buf(&desc->italic, sizeof(desc->italic), hval); hval = fnv_32a_buf(&desc->italic, sizeof(desc->italic), hval);
return hval; return hval;
} }
static int font_compare(void* key1, void* key2, size_t key_size) { static int font_compare(void *key1, void *key2, size_t key_size)
ass_font_desc_t* a = key1; {
ass_font_desc_t* b = key2; ass_font_desc_t *a = key1;
if (strcmp(a->family, b->family) != 0) ass_font_desc_t *b = key2;
return 0; if (strcmp(a->family, b->family) != 0)
if (a->bold != b->bold) return 0;
return 0; if (a->bold != b->bold)
if (a->italic != b->italic) return 0;
return 0; if (a->italic != b->italic)
if (a->treat_family_as_pattern != b->treat_family_as_pattern) return 0;
return 0; if (a->treat_family_as_pattern != b->treat_family_as_pattern)
return 1; return 0;
return 1;
} }
static void font_hash_dtor(void* key, size_t key_size, void* value, size_t value_size) static void font_hash_dtor(void *key, size_t key_size, void *value,
size_t value_size)
{ {
ass_font_free(value); ass_font_free(value);
free(key); free(key);
} }
ass_font_t* ass_font_cache_find(ass_font_desc_t* desc) ass_font_t *ass_font_cache_find(hashmap_t *font_cache,
ass_font_desc_t *desc)
{ {
return hashmap_find(font_cache, desc); return hashmap_find(font_cache, desc);
} }
/** /**
* \brief Add a face struct to cache. * \brief Add a face struct to cache.
* \param font font struct * \param font font struct
*/ */
void* ass_font_cache_add(ass_font_t* font) void *ass_font_cache_add(hashmap_t *font_cache, ass_font_t *font)
{ {
return hashmap_insert(font_cache, &(font->desc), font); return hashmap_insert(font_cache, &(font->desc), font);
} }
void ass_font_cache_init(void) hashmap_t *ass_font_cache_init(void)
{ {
font_cache = hashmap_init(sizeof(ass_font_desc_t), hashmap_t *font_cache;
sizeof(ass_font_t), font_cache = hashmap_init(sizeof(ass_font_desc_t),
1000, sizeof(ass_font_t),
font_hash_dtor, font_compare, font_desc_hash); 1000,
font_hash_dtor, font_compare, font_desc_hash);
return font_cache;
} }
void ass_font_cache_done(void) void ass_font_cache_done(hashmap_t *font_cache)
{ {
hashmap_done(font_cache); hashmap_done(font_cache);
} }
@ -240,119 +203,131 @@ void ass_font_cache_done(void)
//--------------------------------- //---------------------------------
// bitmap cache // bitmap cache
hashmap_t* bitmap_cache; static void bitmap_hash_dtor(void *key, size_t key_size, void *value,
size_t value_size)
static void bitmap_hash_dtor(void* key, size_t key_size, void* value, size_t value_size)
{ {
bitmap_hash_val_t* v = value; bitmap_hash_val_t *v = value;
if (v->bm) ass_free_bitmap(v->bm); if (v->bm)
if (v->bm_o) ass_free_bitmap(v->bm_o); ass_free_bitmap(v->bm);
if (v->bm_s) ass_free_bitmap(v->bm_s); if (v->bm_o)
free(key); ass_free_bitmap(v->bm_o);
free(value); if (v->bm_s)
ass_free_bitmap(v->bm_s);
free(key);
free(value);
} }
void* cache_add_bitmap(bitmap_hash_key_t* key, bitmap_hash_val_t* val) void *cache_add_bitmap(hashmap_t *bitmap_cache, bitmap_hash_key_t *key,
bitmap_hash_val_t *val)
{ {
return hashmap_insert(bitmap_cache, key, val); return hashmap_insert(bitmap_cache, key, val);
} }
/** /**
* \brief Get a bitmap from bitmap cache. * \brief Get a bitmap from bitmap cache.
* \param key hash key * \param key hash key
* \return requested hash val or 0 if not found * \return requested hash val or 0 if not found
*/ */
bitmap_hash_val_t* cache_find_bitmap(bitmap_hash_key_t* key) bitmap_hash_val_t *cache_find_bitmap(hashmap_t *bitmap_cache,
bitmap_hash_key_t *key)
{ {
return hashmap_find(bitmap_cache, key); return hashmap_find(bitmap_cache, key);
} }
void ass_bitmap_cache_init(void) hashmap_t *ass_bitmap_cache_init(void)
{ {
bitmap_cache = hashmap_init(sizeof(bitmap_hash_key_t), hashmap_t *bitmap_cache;
sizeof(bitmap_hash_val_t), bitmap_cache = hashmap_init(sizeof(bitmap_hash_key_t),
0xFFFF + 13, sizeof(bitmap_hash_val_t),
bitmap_hash_dtor, bitmap_compare, 0xFFFF + 13,
bitmap_hash); bitmap_hash_dtor, bitmap_compare,
bitmap_hash);
return bitmap_cache;
} }
void ass_bitmap_cache_done(void) void ass_bitmap_cache_done(hashmap_t *bitmap_cache)
{ {
hashmap_done(bitmap_cache); hashmap_done(bitmap_cache);
} }
void ass_bitmap_cache_reset(void) hashmap_t *ass_bitmap_cache_reset(hashmap_t *bitmap_cache)
{ {
ass_bitmap_cache_done(); ass_bitmap_cache_done(bitmap_cache);
ass_bitmap_cache_init(); return ass_bitmap_cache_init();
} }
//--------------------------------- //---------------------------------
// glyph cache // glyph cache
hashmap_t* glyph_cache; static void glyph_hash_dtor(void *key, size_t key_size, void *value,
size_t value_size)
static void glyph_hash_dtor(void* key, size_t key_size, void* value, size_t value_size)
{ {
glyph_hash_val_t* v = value; glyph_hash_val_t *v = value;
if (v->glyph) FT_Done_Glyph(v->glyph); if (v->glyph)
if (v->outline_glyph) FT_Done_Glyph(v->outline_glyph); FT_Done_Glyph(v->glyph);
free(key); if (v->outline_glyph)
free(value); FT_Done_Glyph(v->outline_glyph);
free(key);
free(value);
} }
void* cache_add_glyph(glyph_hash_key_t* key, glyph_hash_val_t* val) void *cache_add_glyph(hashmap_t *glyph_cache, glyph_hash_key_t *key,
glyph_hash_val_t *val)
{ {
return hashmap_insert(glyph_cache, key, val); return hashmap_insert(glyph_cache, key, val);
} }
/** /**
* \brief Get a glyph from glyph cache. * \brief Get a glyph from glyph cache.
* \param key hash key * \param key hash key
* \return requested hash val or 0 if not found * \return requested hash val or 0 if not found
*/ */
glyph_hash_val_t* cache_find_glyph(glyph_hash_key_t* key) glyph_hash_val_t *cache_find_glyph(hashmap_t *glyph_cache,
glyph_hash_key_t *key)
{ {
return hashmap_find(glyph_cache, key); return hashmap_find(glyph_cache, key);
} }
void ass_glyph_cache_init(void) hashmap_t *ass_glyph_cache_init(void)
{ {
glyph_cache = hashmap_init(sizeof(glyph_hash_key_t), hashmap_t *glyph_cache;
sizeof(glyph_hash_val_t), glyph_cache = hashmap_init(sizeof(glyph_hash_key_t),
0xFFFF + 13, sizeof(glyph_hash_val_t),
glyph_hash_dtor, glyph_compare, glyph_hash); 0xFFFF + 13,
glyph_hash_dtor, glyph_compare, glyph_hash);
return glyph_cache;
} }
void ass_glyph_cache_done(void) void ass_glyph_cache_done(hashmap_t *glyph_cache)
{ {
hashmap_done(glyph_cache); hashmap_done(glyph_cache);
} }
void ass_glyph_cache_reset(void) hashmap_t *ass_glyph_cache_reset(hashmap_t *glyph_cache)
{ {
ass_glyph_cache_done(); ass_glyph_cache_done(glyph_cache);
ass_glyph_cache_init(); return ass_glyph_cache_init();
} }
//--------------------------------- //---------------------------------
// composite cache // composite cache
hashmap_t* composite_cache; static void composite_hash_dtor(void *key, size_t key_size, void *value,
size_t value_size)
static void composite_hash_dtor(void* key, size_t key_size, void* value, size_t value_size)
{ {
composite_hash_val_t* v = value; composite_hash_val_t *v = value;
free(v->a); free(v->a);
free(v->b); free(v->b);
free(key); free(key);
free(value); free(value);
} }
void* cache_add_composite(composite_hash_key_t* key, composite_hash_val_t* val) void *cache_add_composite(hashmap_t *composite_cache,
composite_hash_key_t *key,
composite_hash_val_t *val)
{ {
return hashmap_insert(composite_cache, key, val); return hashmap_insert(composite_cache, key, val);
} }
/** /**
@ -360,27 +335,30 @@ void* cache_add_composite(composite_hash_key_t* key, composite_hash_val_t* val)
* \param key hash key * \param key hash key
* \return requested hash val or 0 if not found * \return requested hash val or 0 if not found
*/ */
composite_hash_val_t* cache_find_composite(composite_hash_key_t* key) composite_hash_val_t *cache_find_composite(hashmap_t *composite_cache,
composite_hash_key_t *key)
{ {
return hashmap_find(composite_cache, key); return hashmap_find(composite_cache, key);
} }
void ass_composite_cache_init(void) hashmap_t *ass_composite_cache_init(void)
{ {
composite_cache = hashmap_init(sizeof(composite_hash_key_t), hashmap_t *composite_cache;
sizeof(composite_hash_val_t), composite_cache = hashmap_init(sizeof(composite_hash_key_t),
0xFFFF + 13, sizeof(composite_hash_val_t),
composite_hash_dtor, NULL, NULL); 0xFFFF + 13,
composite_hash_dtor, composite_compare,
composite_hash);
return composite_cache;
} }
void ass_composite_cache_done(void) void ass_composite_cache_done(hashmap_t *composite_cache)
{ {
hashmap_done(composite_cache); hashmap_done(composite_cache);
} }
void ass_composite_cache_reset(void) hashmap_t *ass_composite_cache_reset(hashmap_t *composite_cache)
{ {
ass_composite_cache_done(); ass_composite_cache_done(composite_cache);
ass_composite_cache_init(); return ass_composite_cache_init();
} }

120
aegisub/libass/ass_cache.h
View file

@ -1,5 +1,3 @@
// -*- c-basic-offset: 8; indent-tabs-mode: t -*-
// vim:ts=8:sw=8:noet:ai:
/* /*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com> * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
* *
@ -27,72 +25,92 @@
#include "ass_font.h" #include "ass_font.h"
#include "ass_bitmap.h" #include "ass_bitmap.h"
void ass_font_cache_init(void); typedef void (*hashmap_item_dtor_t) (void *key, size_t key_size,
ass_font_t* ass_font_cache_find(ass_font_desc_t* desc); void *value, size_t value_size);
void* ass_font_cache_add(ass_font_t* font); typedef int (*hashmap_key_compare_t) (void *key1, void *key2,
void ass_font_cache_done(void); size_t key_size);
typedef unsigned (*hashmap_hash_t) (void *key, size_t key_size);
typedef struct hashmap_item_s {
void *key;
void *value;
struct hashmap_item_s *next;
} hashmap_item_t;
typedef hashmap_item_t *hashmap_item_p;
typedef struct hashmap_s {
int nbuckets;
size_t key_size, value_size;
hashmap_item_p *root;
hashmap_item_dtor_t item_dtor; // a destructor for hashmap key/value pairs
hashmap_key_compare_t key_compare;
hashmap_hash_t hash;
// stats
int hit_count;
int miss_count;
int count;
} hashmap_t;
hashmap_t *hashmap_init(size_t key_size, size_t value_size, int nbuckets,
hashmap_item_dtor_t item_dtor,
hashmap_key_compare_t key_compare,
hashmap_hash_t hash);
void hashmap_done(hashmap_t *map);
void *hashmap_insert(hashmap_t *map, void *key, void *value);
void *hashmap_find(hashmap_t *map, void *key);
hashmap_t *ass_font_cache_init(void);
ass_font_t *ass_font_cache_find(hashmap_t *, ass_font_desc_t *desc);
void *ass_font_cache_add(hashmap_t *, ass_font_t *font);
void ass_font_cache_done(hashmap_t *);
// Create definitions for bitmap_hash_key and glyph_hash_key // Create definitions for bitmap_hash_key and glyph_hash_key
#define CREATE_STRUCT_DEFINITIONS #define CREATE_STRUCT_DEFINITIONS
#include "ass_cache_template.c" #include "ass_cache_template.c"
typedef struct bitmap_hash_val_s { typedef struct bitmap_hash_val_s {
bitmap_t* bm; // the actual bitmaps bitmap_t *bm; // the actual bitmaps
bitmap_t* bm_o; bitmap_t *bm_o;
bitmap_t* bm_s; bitmap_t *bm_s;
} bitmap_hash_val_t; } bitmap_hash_val_t;
void ass_bitmap_cache_init(void); hashmap_t *ass_bitmap_cache_init(void);
void* cache_add_bitmap(bitmap_hash_key_t* key, bitmap_hash_val_t* val); void *cache_add_bitmap(hashmap_t *, bitmap_hash_key_t *key,
bitmap_hash_val_t* cache_find_bitmap(bitmap_hash_key_t* key); bitmap_hash_val_t *val);
void ass_bitmap_cache_reset(void); bitmap_hash_val_t *cache_find_bitmap(hashmap_t *bitmap_cache,
void ass_bitmap_cache_done(void); bitmap_hash_key_t *key);
hashmap_t *ass_bitmap_cache_reset(hashmap_t *bitmap_cache);
void ass_bitmap_cache_done(hashmap_t *bitmap_cache);
// Cache for composited bitmaps
typedef struct composite_hash_key_s {
int aw, ah, bw, bh;
int ax, ay, bx, by;
bitmap_hash_key_t a;
bitmap_hash_key_t b;
} composite_hash_key_t;
typedef struct composite_hash_val_s { typedef struct composite_hash_val_s {
unsigned char* a; unsigned char *a;
unsigned char* b; unsigned char *b;
} composite_hash_val_t; } composite_hash_val_t;
void ass_composite_cache_init(void); hashmap_t *ass_composite_cache_init(void);
void* cache_add_composite(composite_hash_key_t* key, composite_hash_val_t* val); void *cache_add_composite(hashmap_t *, composite_hash_key_t *key,
composite_hash_val_t* cache_find_composite(composite_hash_key_t* key); composite_hash_val_t *val);
void ass_composite_cache_reset(void); composite_hash_val_t *cache_find_composite(hashmap_t *composite_cache,
void ass_composite_cache_done(void); composite_hash_key_t *key);
hashmap_t *ass_composite_cache_reset(hashmap_t *composite_cache);
void ass_composite_cache_done(hashmap_t *composite_cache);
typedef struct glyph_hash_val_s { typedef struct glyph_hash_val_s {
FT_Glyph glyph; FT_Glyph glyph;
FT_Glyph outline_glyph; FT_Glyph outline_glyph;
FT_BBox bbox_scaled; // bbox after scaling, but before rotation FT_BBox bbox_scaled; // bbox after scaling, but before rotation
FT_Vector advance; // 26.6, advance distance to the next bitmap in line FT_Vector advance; // 26.6, advance distance to the next bitmap in line
int asc, desc; // ascender/descender of a drawing
} glyph_hash_val_t; } glyph_hash_val_t;
void ass_glyph_cache_init(void); hashmap_t *ass_glyph_cache_init(void);
void* cache_add_glyph(glyph_hash_key_t* key, glyph_hash_val_t* val); void *cache_add_glyph(hashmap_t *, glyph_hash_key_t *key,
glyph_hash_val_t* cache_find_glyph(glyph_hash_key_t* key); glyph_hash_val_t *val);
void ass_glyph_cache_reset(void); glyph_hash_val_t *cache_find_glyph(hashmap_t *glyph_cache,
void ass_glyph_cache_done(void); glyph_hash_key_t *key);
hashmap_t *ass_glyph_cache_reset(hashmap_t *glyph_cache);
void ass_glyph_cache_done(hashmap_t *glyph_cache);
typedef struct hashmap_s hashmap_t; #endif /* LIBASS_CACHE_H */
typedef void (*hashmap_item_dtor_t)(void* key, size_t key_size, void* value, size_t value_size);
typedef int (*hashmap_key_compare_t)(void* key1, void* key2, size_t key_size);
typedef unsigned (*hashmap_hash_t)(void* key, size_t key_size);
hashmap_t* hashmap_init(size_t key_size, size_t value_size, int nbuckets,
hashmap_item_dtor_t item_dtor, hashmap_key_compare_t key_compare,
hashmap_hash_t hash);
void hashmap_done(hashmap_t* map);
void* hashmap_insert(hashmap_t* map, void* key, void* value);
void* hashmap_find(hashmap_t* map, void* key);
#endif /* LIBASS_CACHE_H */

34
aegisub/libass/ass_cache_template.c
View file

@ -6,6 +6,8 @@
type member; type member;
#define FTVECTOR(member) \ #define FTVECTOR(member) \
FT_Vector member; FT_Vector member;
#define BITMAPHASHKEY(member) \
bitmap_hash_key_t member;
#define END(typedefnamename) \ #define END(typedefnamename) \
} typedefnamename; } typedefnamename;
@ -21,6 +23,8 @@
a->member == b->member && a->member == b->member &&
#define FTVECTOR(member) \ #define FTVECTOR(member) \
a->member.x == b->member.x && a->member.y == b->member.y && 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) \ #define END(typedefname) \
1; \ 1; \
} }
@ -35,6 +39,10 @@
#define GENERIC(type, member) \ #define GENERIC(type, member) \
hval = fnv_32a_buf(&p->member, sizeof(p->member), hval); hval = fnv_32a_buf(&p->member, sizeof(p->member), hval);
#define FTVECTOR(member) GENERIC(, member.x); GENERIC(, member.y); #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) \ #define END(typedefname) \
return hval; \ return hval; \
} }
@ -51,7 +59,7 @@ START(bitmap, bipmap_hash_key_s)
GENERIC(ass_font_t *, font) GENERIC(ass_font_t *, font)
GENERIC(double, size) // font size GENERIC(double, size) // font size
GENERIC(uint32_t, ch) // character code GENERIC(uint32_t, ch) // character code
GENERIC(unsigned, outline) // border width, 16.16 fixed point value FTVECTOR(outline) // border width, 16.16 fixed point value
GENERIC(int, bold) GENERIC(int, bold)
GENERIC(int, italic) GENERIC(int, italic)
GENERIC(char, be) // blur edges GENERIC(char, be) // blur edges
@ -61,12 +69,16 @@ START(bitmap, bipmap_hash_key_s)
GENERIC(int, frx) // signed 16.16 GENERIC(int, frx) // signed 16.16
GENERIC(int, fry) // signed 16.16 GENERIC(int, fry) // signed 16.16
GENERIC(int, frz) // 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 // shift vector that was added to glyph before applying rotation
// = 0, if frx = fry = frx = 0 // = 0, if frx = fry = frx = 0
// = (glyph base point) - (rotation origin), otherwise // = (glyph base point) - (rotation origin), otherwise
GENERIC(int, shift_x) GENERIC(int, shift_x)
GENERIC(int, shift_y) GENERIC(int, shift_y)
FTVECTOR(advance) // subpixel shift vector FTVECTOR(advance) // subpixel shift vector
FTVECTOR(shadow_offset) // shadow subpixel shift
GENERIC(unsigned, drawing_hash) // hashcode of a drawing
END(bitmap_hash_key_t) END(bitmap_hash_key_t)
// describes an outline glyph // describes an outline glyph
@ -79,10 +91,28 @@ START(glyph, glyph_hash_key_s)
GENERIC(unsigned, scale_x) // 16.16 GENERIC(unsigned, scale_x) // 16.16
GENERIC(unsigned, scale_y) // 16.16 GENERIC(unsigned, scale_y) // 16.16
FTVECTOR(advance) // subpixel shift vector FTVECTOR(advance) // subpixel shift vector
GENERIC(unsigned, outline) // border width, 16.16 FTVECTOR(outline) // border width, 16.16
GENERIC(unsigned, drawing_hash) // hashcode of a drawing
GENERIC(unsigned, flags) // glyph decoration flags
END(glyph_hash_key_t) END(glyph_hash_key_t)
// Cache for composited bitmaps
START(composite, composite_hash_key_s)
GENERIC(int, aw)
GENERIC(int, ah)
GENERIC(int, bw)
GENERIC(int, bh)
GENERIC(int, ax)
GENERIC(int, ay)
GENERIC(int, bx)
GENERIC(int, by)
BITMAPHASHKEY(a)
BITMAPHASHKEY(b)
END(composite_hash_key_t)
#undef START #undef START
#undef GENERIC #undef GENERIC
#undef FTVECTOR #undef FTVECTOR
#undef BITMAPHASHKEY
#undef END #undef END

477
aegisub/libass/ass_drawing.c Normal file
View file

@ -0,0 +1,477 @@
/*
* 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_t *drawing, void *fontconfig_priv,
ass_font_t *font, ass_hinting_t hint)
{
FT_OutlineGlyph glyph;
// This is hacky...
glyph = (FT_OutlineGlyph) ass_font_get_glyph(fontconfig_priv, font,
(uint32_t) ' ', hint, 0);
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_t *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_t *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);
}
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_t *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_t *drawing)
{
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
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_drawing_token_t *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_drawing_token_t
* This also expands points for closing b-splines
*/
static ass_drawing_token_t *drawing_tokenize(char *str)
{
char *p = str;
int i, val, type = -1, is_set = 0;
FT_Vector point = {0, 0};
ass_drawing_token_t *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_drawing_token_t));
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_drawing_token_t));
tail->next->prev = tail;
tail = tail->next;
} else
root = tail = calloc(1, sizeof(ass_drawing_token_t));
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_drawing_token_t *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_drawing_token_t *token)
{
while (token) {
ass_drawing_token_t *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_t *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_t *drawing,
ass_drawing_token_t *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_t *ass_drawing_new(void *fontconfig_priv, ass_font_t *font,
ass_hinting_t hint, FT_Library lib)
{
ass_drawing_t* drawing;
drawing = calloc(1, sizeof(*drawing));
drawing->text = malloc(DRAWING_INITIAL_SIZE);
drawing->size = DRAWING_INITIAL_SIZE;
drawing->ftlibrary = lib;
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_t* drawing)
{
free(drawing->text);
free(drawing);
}
/*
* \brief Add one ASCII character to the drawing text buffer
*/
void ass_drawing_add_char(ass_drawing_t* 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_t* 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_t *drawing)
{
int started = 0;
ass_drawing_token_t *token;
FT_Vector pen = {0, 0};
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);
drawing_free_tokens(drawing->tokens);
return &drawing->glyph;
}

76
aegisub/libass/ass_drawing.h Normal file
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@ -0,0 +1,76 @@
/*
* 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
enum ass_token_type {
TOKEN_MOVE,
TOKEN_MOVE_NC,
TOKEN_LINE,
TOKEN_CUBIC_BEZIER,
TOKEN_CONIC_BEZIER,
TOKEN_B_SPLINE,
TOKEN_EXTEND_SPLINE,
TOKEN_CLOSE
};
typedef struct ass_drawing_token_s {
enum ass_token_type type;
FT_Vector point;
struct ass_drawing_token_s *next;
struct ass_drawing_token_s *prev;
} ass_drawing_token_t;
typedef struct ass_drawing_s {
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
int size; // current buffer size
ass_drawing_token_t *tokens; // tokenized drawing
int max_points; // current maximum size
int max_contours;
double point_scale_x;
double point_scale_y;
} ass_drawing_t;
ass_drawing_t *ass_drawing_new(void *fontconfig_priv, ass_font_t *font,
ass_hinting_t hint, FT_Library lib);
void ass_drawing_free(ass_drawing_t* drawing);
void ass_drawing_add_char(ass_drawing_t* drawing, char symbol);
void ass_drawing_hash(ass_drawing_t* drawing);
FT_OutlineGlyph *ass_drawing_parse(ass_drawing_t *drawing);
#endif /* LIBASS_DRAWING_H */

580
aegisub/libass/ass_font.c
View file

@ -1,5 +1,3 @@
// -*- c-basic-offset: 8; indent-tabs-mode: t -*-
// vim:ts=8:sw=8:noet:ai:
/* /*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com> * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
* *
@ -36,7 +34,6 @@
#include "ass_cache.h" #include "ass_cache.h"
#include "ass_fontconfig.h" #include "ass_fontconfig.h"
#include "ass_utils.h" #include "ass_utils.h"
#include "mputils.h"
/** /**
* Select Microfost Unicode CharMap, if the font has one. * Select Microfost Unicode CharMap, if the font has one.
@ -44,200 +41,218 @@
*/ */
static void charmap_magic(FT_Face face) static void charmap_magic(FT_Face face)
{ {
int i; int i;
for (i = 0; i < face->num_charmaps; ++i) { for (i = 0; i < face->num_charmaps; ++i) {
FT_CharMap cmap = face->charmaps[i]; FT_CharMap cmap = face->charmaps[i];
unsigned pid = cmap->platform_id; unsigned pid = cmap->platform_id;
unsigned eid = cmap->encoding_id; unsigned eid = cmap->encoding_id;
if (pid == 3 /*microsoft*/ && (eid == 1 /*unicode bmp*/ || eid == 10 /*full unicode*/)) { if (pid == 3 /*microsoft */
FT_Set_Charmap(face, cmap); && (eid == 1 /*unicode bmp */
return; || eid == 10 /*full unicode */ )) {
} FT_Set_Charmap(face, cmap);
} return;
}
}
if (!face->charmap) { if (!face->charmap) {
if (face->num_charmaps == 0) { if (face->num_charmaps == 0) {
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_NoCharmaps); ass_msg(MSGL_WARN, MSGTR_LIBASS_NoCharmaps);
return; return;
} }
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_NoCharmapAutodetected); ass_msg(MSGL_WARN, MSGTR_LIBASS_NoCharmapAutodetected);
FT_Set_Charmap(face, face->charmaps[0]); FT_Set_Charmap(face, face->charmaps[0]);
return; return;
} }
} }
static void update_transform(ass_font_t* font) static void update_transform(ass_font_t *font)
{ {
int i; int i;
FT_Matrix m; FT_Matrix m;
m.xx = double_to_d16(font->scale_x); m.xx = double_to_d16(font->scale_x);
m.yy = double_to_d16(font->scale_y); m.yy = double_to_d16(font->scale_y);
m.xy = m.yx = 0; m.xy = m.yx = 0;
for (i = 0; i < font->n_faces; ++i) for (i = 0; i < font->n_faces; ++i)
FT_Set_Transform(font->faces[i], &m, &font->v); FT_Set_Transform(font->faces[i], &m, &font->v);
} }
/** /**
* \brief find a memory font by name * \brief find a memory font by name
*/ */
static int find_font(ass_library_t* library, char* name) static int find_font(ass_library_t *library, char *name)
{ {
int i; int i;
for (i = 0; i < library->num_fontdata; ++i) for (i = 0; i < library->num_fontdata; ++i)
if (strcasecmp(name, library->fontdata[i].name) == 0) if (strcasecmp(name, library->fontdata[i].name) == 0)
return i; return i;
return -1; return -1;
} }
static void face_set_size(FT_Face face, double size); static void face_set_size(FT_Face face, double size);
static void buggy_font_workaround(FT_Face face) static void buggy_font_workaround(FT_Face face)
{ {
// Some fonts have zero Ascender/Descender fields in 'hhea' table. // Some fonts have zero Ascender/Descender fields in 'hhea' table.
// In this case, get the information from 'os2' table or, as // In this case, get the information from 'os2' table or, as
// a last resort, from face.bbox. // a last resort, from face.bbox.
if (face->ascender + face->descender == 0 || face->height == 0) { if (face->ascender + face->descender == 0 || face->height == 0) {
TT_OS2 *os2 = FT_Get_Sfnt_Table(face, ft_sfnt_os2); TT_OS2 *os2 = FT_Get_Sfnt_Table(face, ft_sfnt_os2);
if (os2) { if (os2) {
face->ascender = os2->sTypoAscender; face->ascender = os2->sTypoAscender;
face->descender = os2->sTypoDescender; face->descender = os2->sTypoDescender;
face->height = face->ascender - face->descender; face->height = face->ascender - face->descender;
} else { } else {
face->ascender = face->bbox.yMax; face->ascender = face->bbox.yMax;
face->descender = face->bbox.yMin; face->descender = face->bbox.yMin;
face->height = face->ascender - face->descender; face->height = face->ascender - face->descender;
} }
} }
} }
/** /**
* \brief Select a face with the given charcode and add it to ass_font_t * \brief Select a face with the given charcode and add it to ass_font_t
* \return index of the new face in font->faces, -1 if failed * \return index of the new face in font->faces, -1 if failed
*/ */
static int add_face(void* fc_priv, ass_font_t* font, uint32_t ch) static int add_face(void *fc_priv, ass_font_t *font, uint32_t ch)
{ {
char* path; char *path;
int index; int index;
FT_Face face; FT_Face face;
int error; int error;
int mem_idx; int mem_idx;
if (font->n_faces == ASS_FONT_MAX_FACES)
return -1;
path = fontconfig_select(fc_priv, font->desc.family, font->desc.treat_family_as_pattern, font->desc.bold,
font->desc.italic, &index, ch);
mem_idx = find_font(font->library, path); if (font->n_faces == ASS_FONT_MAX_FACES)
if (mem_idx >= 0) { return -1;
error = FT_New_Memory_Face(font->ftlibrary, (unsigned char*)font->library->fontdata[mem_idx].data,
font->library->fontdata[mem_idx].size, 0, &face); path =
if (error) { fontconfig_select(fc_priv, font->desc.family,
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_ErrorOpeningMemoryFont, path); font->desc.treat_family_as_pattern,
return -1; font->desc.bold, font->desc.italic, &index, ch);
} if (!path)
} else { return -1;
error = FT_New_Face(font->ftlibrary, path, index, &face);
if (error) { mem_idx = find_font(font->library, path);
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_ErrorOpeningFont, path, index); if (mem_idx >= 0) {
return -1; error =
} FT_New_Memory_Face(font->ftlibrary,
} (unsigned char *) font->library->
charmap_magic(face); fontdata[mem_idx].data,
buggy_font_workaround(face); font->library->fontdata[mem_idx].size, 0,
&face);
font->faces[font->n_faces++] = face; if (error) {
update_transform(font); ass_msg(MSGL_WARN, MSGTR_LIBASS_ErrorOpeningMemoryFont,
face_set_size(face, font->size); path);
return font->n_faces - 1; free(path);
return -1;
}
} else {
error = FT_New_Face(font->ftlibrary, path, index, &face);
if (error) {
ass_msg(MSGL_WARN, MSGTR_LIBASS_ErrorOpeningFont, path,
index);
free(path);
return -1;
}
}
charmap_magic(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_t according to "desc" argument * \brief Create a new ass_font_t according to "desc" argument
*/ */
ass_font_t* ass_font_new(ass_library_t* library, FT_Library ftlibrary, void* fc_priv, ass_font_desc_t* desc) ass_font_t *ass_font_new(void *font_cache, ass_library_t *library,
FT_Library ftlibrary, void *fc_priv,
ass_font_desc_t *desc)
{ {
int error; int error;
ass_font_t* fontp; ass_font_t *fontp;
ass_font_t font; ass_font_t font;
fontp = ass_font_cache_find(desc); fontp = ass_font_cache_find((hashmap_t *) font_cache, desc);
if (fontp) if (fontp)
return 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.library = library;
font.v.x = font.v.y = 0; font.ftlibrary = ftlibrary;
font.size = 0.; 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;
error = add_face(fc_priv, &font, 0); font.scale_x = font.scale_y = 1.;
if (error == -1) { font.v.x = font.v.y = 0;
free(font.desc.family); font.size = 0.;
return 0;
} else error = add_face(fc_priv, &font, 0);
return ass_font_cache_add(&font); if (error == -1) {
free(font.desc.family);
return 0;
} else
return ass_font_cache_add((hashmap_t *) font_cache, &font);
} }
/** /**
* \brief Set font transformation matrix and shift vector * \brief Set font transformation matrix and shift vector
**/ **/
void ass_font_set_transform(ass_font_t* font, double scale_x, double scale_y, FT_Vector* v) void ass_font_set_transform(ass_font_t *font, double scale_x,
double scale_y, FT_Vector *v)
{ {
font->scale_x = scale_x; font->scale_x = scale_x;
font->scale_y = scale_y; font->scale_y = scale_y;
font->v.x = v->x; font->v.x = v->x;
font->v.y = v->y; font->v.y = v->y;
update_transform(font); update_transform(font);
} }
static void face_set_size(FT_Face face, double size) static void face_set_size(FT_Face face, double size)
{ {
#if (FREETYPE_MAJOR > 2) || ((FREETYPE_MAJOR == 2) && (FREETYPE_MINOR > 1)) #if (FREETYPE_MAJOR > 2) || ((FREETYPE_MAJOR == 2) && (FREETYPE_MINOR > 1))
TT_HoriHeader *hori = FT_Get_Sfnt_Table(face, ft_sfnt_hhea); TT_HoriHeader *hori = FT_Get_Sfnt_Table(face, ft_sfnt_hhea);
TT_OS2 *os2 = FT_Get_Sfnt_Table(face, ft_sfnt_os2); TT_OS2 *os2 = FT_Get_Sfnt_Table(face, ft_sfnt_os2);
double mscale = 1.; double mscale = 1.;
FT_Size_RequestRec rq; FT_Size_RequestRec rq;
FT_Size_Metrics *m = &face->size->metrics; FT_Size_Metrics *m = &face->size->metrics;
// VSFilter uses metrics from TrueType OS/2 table // VSFilter uses metrics from TrueType OS/2 table
// The idea was borrowed from asa (http://asa.diac24.net) // The idea was borrowed from asa (http://asa.diac24.net)
if (hori && os2) { if (hori && os2) {
int hori_height = hori->Ascender - hori->Descender; int hori_height = hori->Ascender - hori->Descender;
int os2_height = os2->usWinAscent + os2->usWinDescent; int os2_height = os2->usWinAscent + os2->usWinDescent;
if (hori_height && os2_height) if (hori_height && os2_height)
mscale = (double)hori_height / os2_height; mscale = (double) hori_height / os2_height;
} }
memset(&rq, 0, sizeof(rq)); memset(&rq, 0, sizeof(rq));
rq.type = FT_SIZE_REQUEST_TYPE_REAL_DIM; rq.type = FT_SIZE_REQUEST_TYPE_REAL_DIM;
rq.width = 0; rq.width = 0;
rq.height = double_to_d6(size * mscale); rq.height = double_to_d6(size * mscale);
rq.horiResolution = rq.vertResolution = 0; rq.horiResolution = rq.vertResolution = 0;
FT_Request_Size(face, &rq); FT_Request_Size(face, &rq);
m->ascender /= mscale; m->ascender /= mscale;
m->descender /= mscale; m->descender /= mscale;
m->height /= mscale; m->height /= mscale;
#else #else
FT_Set_Char_Size(face, 0, double_to_d6(size), 0, 0); FT_Set_Char_Size(face, 0, double_to_d6(size), 0, 0);
#endif #endif
} }
/** /**
* \brief Set font size * \brief Set font size
**/ **/
void ass_font_set_size(ass_font_t* font, double size) void ass_font_set_size(ass_font_t *font, double size)
{ {
int i; int i;
if (font->size != size) { if (font->size != size) {
font->size = size; font->size = size;
for (i = 0; i < font->n_faces; ++i) for (i = 0; i < font->n_faces; ++i)
face_set_size(font->faces[i], size); face_set_size(font->faces[i], size);
} }
} }
/** /**
@ -245,125 +260,222 @@ void ass_font_set_size(ass_font_t* font, double size)
* \param ch character code * \param ch character code
* The values are extracted from the font face that provides glyphs for the given character * The values are extracted from the font face that provides glyphs for the given character
**/ **/
void ass_font_get_asc_desc(ass_font_t* font, uint32_t ch, int* asc, int* desc) void ass_font_get_asc_desc(ass_font_t *font, uint32_t ch, int *asc,
int *desc)
{ {
int i; int i;
for (i = 0; i < font->n_faces; ++i) { for (i = 0; i < font->n_faces; ++i) {
FT_Face face = font->faces[i]; FT_Face face = font->faces[i];
if (FT_Get_Char_Index(face, ch)) { if (FT_Get_Char_Index(face, ch)) {
*asc = face->size->metrics.ascender; *asc = face->size->metrics.ascender;
*desc = - face->size->metrics.descender; *desc = -face->size->metrics.descender;
return; return;
} }
} }
*asc = *desc = 0; *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_t *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;
// 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;
// Add points to the outline
if (under) {
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 0;
FT_Vector points[4] = {
{.x = bear, .y = pos + size},
{.x = advance, .y = pos + size},
{.x = advance, .y = pos - size},
{.x = bear, .y = pos - size},
};
for (i = 0; i < 4; 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) {
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 0;
FT_Vector points[4] = {
{.x = bear, .y = pos + size},
{.x = advance, .y = pos + size},
{.x = advance, .y = pos - size},
{.x = bear, .y = pos - size},
};
for (i = 0; i < 4; i++) {
ol->points[ol->n_points] = points[i];
ol->tags[ol->n_points++] = 1;
}
ol->contours[ol->n_contours++] = ol->n_points - 1;
}
return 1;
} }
/** /**
* \brief Get a glyph * \brief Get a glyph
* \param ch character code * \param ch character code
**/ **/
FT_Glyph ass_font_get_glyph(void* fontconfig_priv, ass_font_t* font, uint32_t ch, ass_hinting_t hinting) FT_Glyph ass_font_get_glyph(void *fontconfig_priv, ass_font_t *font,
uint32_t ch, ass_hinting_t hinting, int deco)
{ {
int error; int error;
int index = 0; int index = 0;
int i; int i;
FT_Glyph glyph; FT_Glyph glyph;
FT_Face face = 0; FT_Face face = 0;
int flags = 0; int flags = 0;
if (ch < 0x20) if (ch < 0x20)
return 0; return 0;
if (font->n_faces == 0) if (font->n_faces == 0)
return 0; return 0;
for (i = 0; i < font->n_faces; ++i) { for (i = 0; i < font->n_faces; ++i) {
face = font->faces[i]; face = font->faces[i];
index = FT_Get_Char_Index(face, ch); index = FT_Get_Char_Index(face, ch);
if (index) if (index)
break; break;
} }
#ifdef CONFIG_FONTCONFIG #ifdef CONFIG_FONTCONFIG
if (index == 0) { if (index == 0) {
int face_idx; int face_idx;
mp_msg(MSGT_ASS, MSGL_INFO, MSGTR_LIBASS_GlyphNotFoundReselectingFont, ass_msg(MSGL_INFO,
ch, font->desc.family, font->desc.bold, font->desc.italic); MSGTR_LIBASS_GlyphNotFoundReselectingFont, ch,
face_idx = add_face(fontconfig_priv, font, ch); font->desc.family, font->desc.bold, font->desc.italic);
if (face_idx >= 0) { face_idx = add_face(fontconfig_priv, font, ch);
face = font->faces[face_idx]; if (face_idx >= 0) {
index = FT_Get_Char_Index(face, ch); face = font->faces[face_idx];
if (index == 0) { index = FT_Get_Char_Index(face, ch);
mp_msg(MSGT_ASS, MSGL_ERR, MSGTR_LIBASS_GlyphNotFound, if (index == 0) {
ch, font->desc.family, font->desc.bold, font->desc.italic); ass_msg(MSGL_ERR, MSGTR_LIBASS_GlyphNotFound,
} ch, font->desc.family, font->desc.bold,
} font->desc.italic);
} }
}
}
#endif #endif
switch (hinting) { switch (hinting) {
case ASS_HINTING_NONE: flags = FT_LOAD_NO_HINTING; break; case ASS_HINTING_NONE:
case ASS_HINTING_LIGHT: flags = FT_LOAD_FORCE_AUTOHINT | FT_LOAD_TARGET_LIGHT; break; flags = FT_LOAD_NO_HINTING;
case ASS_HINTING_NORMAL: flags = FT_LOAD_FORCE_AUTOHINT; break; break;
case ASS_HINTING_NATIVE: flags = 0; break; case ASS_HINTING_LIGHT:
} flags = FT_LOAD_FORCE_AUTOHINT | FT_LOAD_TARGET_LIGHT;
break;
error = FT_Load_Glyph(face, index, FT_LOAD_NO_BITMAP | flags); case ASS_HINTING_NORMAL:
if (error) { flags = FT_LOAD_FORCE_AUTOHINT;
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_ErrorLoadingGlyph); break;
return 0; case ASS_HINTING_NATIVE:
} flags = 0;
break;
}
error = FT_Load_Glyph(face, index, FT_LOAD_NO_BITMAP | flags);
if (error) {
ass_msg(MSGL_WARN, MSGTR_LIBASS_ErrorLoadingGlyph);
return 0;
}
#if (FREETYPE_MAJOR > 2) || \ #if (FREETYPE_MAJOR > 2) || \
((FREETYPE_MAJOR == 2) && (FREETYPE_MINOR >= 2)) || \ ((FREETYPE_MAJOR == 2) && (FREETYPE_MINOR >= 2)) || \
((FREETYPE_MAJOR == 2) && (FREETYPE_MINOR == 1) && (FREETYPE_PATCH >= 10)) ((FREETYPE_MAJOR == 2) && (FREETYPE_MINOR == 1) && (FREETYPE_PATCH >= 10))
// FreeType >= 2.1.10 required // FreeType >= 2.1.10 required
if (!(face->style_flags & FT_STYLE_FLAG_ITALIC) && if (!(face->style_flags & FT_STYLE_FLAG_ITALIC) &&
(font->desc.italic > 55)) { (font->desc.italic > 55)) {
FT_GlyphSlot_Oblique(face->glyph); FT_GlyphSlot_Oblique(face->glyph);
} }
#endif #endif
error = FT_Get_Glyph(face->glyph, &glyph); error = FT_Get_Glyph(face->glyph, &glyph);
if (error) { if (error) {
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_ErrorLoadingGlyph); ass_msg(MSGL_WARN, MSGTR_LIBASS_ErrorLoadingGlyph);
return 0; return 0;
} }
return glyph; ass_strike_outline_glyph(face, font, glyph, deco & DECO_UNDERLINE,
deco & DECO_STRIKETHROUGH);
return glyph;
} }
/** /**
* \brief Get kerning for the pair of glyphs. * \brief Get kerning for the pair of glyphs.
**/ **/
FT_Vector ass_font_get_kerning(ass_font_t* font, uint32_t c1, uint32_t c2) FT_Vector ass_font_get_kerning(ass_font_t *font, uint32_t c1, uint32_t c2)
{ {
FT_Vector v = {0, 0}; FT_Vector v = { 0, 0 };
int i; int i;
for (i = 0; i < font->n_faces; ++i) { for (i = 0; i < font->n_faces; ++i) {
FT_Face face = font->faces[i]; FT_Face face = font->faces[i];
int i1 = FT_Get_Char_Index(face, c1); int i1 = FT_Get_Char_Index(face, c1);
int i2 = FT_Get_Char_Index(face, c2); int i2 = FT_Get_Char_Index(face, c2);
if (i1 && i2) { if (i1 && i2) {
if (FT_HAS_KERNING(face)) if (FT_HAS_KERNING(face))
FT_Get_Kerning(face, i1, i2, FT_KERNING_DEFAULT, &v); FT_Get_Kerning(face, i1, i2, FT_KERNING_DEFAULT, &v);
return v; return v;
} }
if (i1 || i2) // these glyphs are from different font faces, no kerning information if (i1 || i2) // these glyphs are from different font faces, no kerning information
return v; return v;
} }
return v; return v;
} }
/** /**
* \brief Deallocate ass_font_t * \brief Deallocate ass_font_t
**/ **/
void ass_font_free(ass_font_t* font) void ass_font_free(ass_font_t *font)
{ {
int i; int i;
for (i = 0; i < font->n_faces; ++i) for (i = 0; i < font->n_faces; ++i)
if (font->faces[i]) FT_Done_Face(font->faces[i]); if (font->faces[i])
if (font->desc.family) free(font->desc.family); FT_Done_Face(font->faces[i]);
free(font); if (font->desc.family)
free(font->desc.family);
free(font);
} }

54
aegisub/libass/ass_font.h
View file

@ -1,5 +1,3 @@
// -*- c-basic-offset: 8; indent-tabs-mode: t -*-
// vim:ts=8:sw=8:noet:ai:
/* /*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com> * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
* *
@ -29,32 +27,40 @@
#include "ass.h" #include "ass.h"
#include "ass_types.h" #include "ass_types.h"
#define ASS_FONT_MAX_FACES 10
#define DECO_UNDERLINE 1
#define DECO_STRIKETHROUGH 2
typedef struct ass_font_desc_s { typedef struct ass_font_desc_s {
char* family; char *family;
unsigned bold; unsigned bold;
unsigned italic; unsigned italic;
int treat_family_as_pattern; int treat_family_as_pattern;
} ass_font_desc_t; } ass_font_desc_t;
#define ASS_FONT_MAX_FACES 10
typedef struct ass_font_s { typedef struct ass_font_s {
ass_font_desc_t desc; ass_font_desc_t desc;
ass_library_t* library; ass_library_t *library;
FT_Library ftlibrary; FT_Library ftlibrary;
FT_Face faces[ASS_FONT_MAX_FACES]; FT_Face faces[ASS_FONT_MAX_FACES];
int n_faces; int n_faces;
double scale_x, scale_y; // current transform double scale_x, scale_y; // current transform
FT_Vector v; // current shift FT_Vector v; // current shift
double size; double size;
} ass_font_t; } ass_font_t;
ass_font_t* ass_font_new(ass_library_t* library, FT_Library ftlibrary, void* fc_priv, ass_font_desc_t* desc); // FIXME: passing the hashmap via a void pointer is very ugly.
void ass_font_set_transform(ass_font_t* font, double scale_x, double scale_y, FT_Vector* v); ass_font_t *ass_font_new(void *font_cache, ass_library_t *library,
void ass_font_set_size(ass_font_t* font, double size); FT_Library ftlibrary, void *fc_priv,
void ass_font_get_asc_desc(ass_font_t* font, uint32_t ch, int* asc, int* desc); ass_font_desc_t *desc);
FT_Glyph ass_font_get_glyph(void* fontconfig_priv, ass_font_t* font, uint32_t ch, ass_hinting_t hinting); void ass_font_set_transform(ass_font_t *font, double scale_x,
FT_Vector ass_font_get_kerning(ass_font_t* font, uint32_t c1, uint32_t c2); double scale_y, FT_Vector * v);
void ass_font_free(ass_font_t* font); void ass_font_set_size(ass_font_t *font, double size);
void ass_font_get_asc_desc(ass_font_t *font, uint32_t ch, int *asc,
int *desc);
FT_Glyph ass_font_get_glyph(void *fontconfig_priv, ass_font_t *font,
uint32_t ch, ass_hinting_t hinting, int flags);
FT_Vector ass_font_get_kerning(ass_font_t *font, uint32_t c1, uint32_t c2);
void ass_font_free(ass_font_t *font);
#endif /* LIBASS_FONT_H */ #endif /* LIBASS_FONT_H */

751
aegisub/libass/ass_fontconfig.c
View file

@ -1,5 +1,3 @@
// -*- c-basic-offset: 8; indent-tabs-mode: t -*-
// vim:ts=8:sw=8:noet:ai:
/* /*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com> * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
* *
@ -32,16 +30,11 @@
#include <ft2build.h> #include <ft2build.h>
#include FT_FREETYPE_H #include FT_FREETYPE_H
#include "mputils.h" #include "ass_utils.h"
#include "ass.h" #include "ass.h"
#include "ass_library.h" #include "ass_library.h"
#include "ass_fontconfig.h" #include "ass_fontconfig.h"
#ifdef BUILD_DARWIN
#include "../src/libosxutil/libosxutil.h"
#include <sys/param.h>
#endif
#ifdef CONFIG_FONTCONFIG #ifdef CONFIG_FONTCONFIG
#include <fontconfig/fontconfig.h> #include <fontconfig/fontconfig.h>
#include <fontconfig/fcfreetype.h> #include <fontconfig/fcfreetype.h>
@ -49,11 +42,11 @@
struct fc_instance_s { struct fc_instance_s {
#ifdef CONFIG_FONTCONFIG #ifdef CONFIG_FONTCONFIG
FcConfig* config; FcConfig *config;
#endif #endif
char* family_default; char *family_default;
char* path_default; char *path_default;
int index_default; int index_default;
}; };
#ifdef CONFIG_FONTCONFIG #ifdef CONFIG_FONTCONFIG
@ -77,157 +70,163 @@ struct fc_instance_s {
* \param index out: font index inside a file * \param index out: font index inside a file
* \param code: the character that should be present in the font, can be 0 * \param code: the character that should be present in the font, can be 0
* \return font file path * \return font file path
*/ */
static char* _select_font(fc_instance_t* priv, const char* family, int treat_family_as_pattern, static char *_select_font(fc_instance_t *priv, const char *family,
unsigned bold, unsigned italic, int* index, uint32_t code) int treat_family_as_pattern, unsigned bold,
unsigned italic, int *index, uint32_t code)
{ {
FcBool rc; FcBool rc;
FcResult result; FcResult result;
FcPattern *pat = NULL, *rpat = NULL; FcPattern *pat = NULL, *rpat = NULL;
int r_index, r_slant, r_weight; int r_index, r_slant, r_weight;
FcChar8 *r_family, *r_style, *r_file, *r_fullname; FcChar8 *r_family, *r_style, *r_file, *r_fullname;
FcBool r_outline, r_embolden; FcBool r_outline, r_embolden;
FcCharSet* r_charset; FcCharSet *r_charset;
FcFontSet* fset = NULL; FcFontSet *fset = NULL;
int curf; int curf;
char* retval = NULL; char *retval = NULL;
int family_cnt; int family_cnt = 0;
*index = 0;
if (treat_family_as_pattern) *index = 0;
pat = FcNameParse((const FcChar8*)family);
else
pat = FcPatternCreate();
if (!pat) if (treat_family_as_pattern)
goto error; pat = FcNameParse((const FcChar8 *) family);
else
if (!treat_family_as_pattern) { pat = FcPatternCreate();
FcPatternAddString(pat, FC_FAMILY, (const FcChar8*)family);
// In SSA/ASS fonts are sometimes referenced by their "full name", if (!pat)
// which is usually a concatenation of family name and font goto error;
// 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); if (!treat_family_as_pattern) {
FcPatternAddString(pat, FC_FAMILY, (const FcChar8 *) family);
rc = FcConfigSubstitute(priv->config, pat, FcMatchPattern);
if (!rc)
goto error;
fset = FcFontSort(priv->config, pat, FcTrue, NULL, &result); // In SSA/ASS fonts are sometimes referenced by their "full name",
if (!fset) // which is usually a concatenation of family name and font
goto error; // 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);
for (curf = 0; curf < fset->nfont; ++curf) { FcDefaultSubstitute(pat);
FcPattern* curp = fset->fonts[curf];
result = FcPatternGetBool(curp, FC_OUTLINE, 0, &r_outline); rc = FcConfigSubstitute(priv->config, pat, FcMatchPattern);
if (result != FcResultMatch) if (!rc)
continue; goto error;
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) fset = FcFontSort(priv->config, pat, FcTrue, NULL, &result);
goto error; 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 (FC_VERSION >= 20297) #if (FC_VERSION >= 20297)
if (!treat_family_as_pattern) { if (!treat_family_as_pattern) {
// Remove all extra family names from original pattern. // Remove all extra family names from original pattern.
// After this, FcFontRenderPrepare will select the most relevant family // After this, FcFontRenderPrepare will select the most relevant family
// name in case there are more than one of them. // name in case there are more than one of them.
for (; family_cnt > 1; --family_cnt) for (; family_cnt > 1; --family_cnt)
FcPatternRemove(pat, FC_FAMILY, family_cnt - 1); FcPatternRemove(pat, FC_FAMILY, family_cnt - 1);
} }
#endif #endif
rpat = FcFontRenderPrepare(priv->config, pat, fset->fonts[curf]); rpat = FcFontRenderPrepare(priv->config, pat, fset->fonts[curf]);
if (!rpat) if (!rpat)
goto error; goto error;
result = FcPatternGetInteger(rpat, FC_INDEX, 0, &r_index); result = FcPatternGetInteger(rpat, FC_INDEX, 0, &r_index);
if (result != FcResultMatch) if (result != FcResultMatch)
goto error; goto error;
*index = r_index; *index = r_index;
result = FcPatternGetString(rpat, FC_FILE, 0, &r_file); result = FcPatternGetString(rpat, FC_FILE, 0, &r_file);
if (result != FcResultMatch) if (result != FcResultMatch)
goto error; goto error;
retval = strdup((const char*)r_file); retval = strdup((const char *) r_file);
result = FcPatternGetString(rpat, FC_FAMILY, 0, &r_family); result = FcPatternGetString(rpat, FC_FAMILY, 0, &r_family);
if (result != FcResultMatch) if (result != FcResultMatch)
r_family = NULL; r_family = NULL;
result = FcPatternGetString(rpat, FC_FULLNAME, 0, &r_fullname); result = FcPatternGetString(rpat, FC_FULLNAME, 0, &r_fullname);
if (result != FcResultMatch) if (result != FcResultMatch)
r_fullname = NULL; r_fullname = NULL;
if (!treat_family_as_pattern && if (!treat_family_as_pattern &&
!(r_family && strcasecmp((const char*)r_family, family) == 0) && !(r_family && strcasecmp((const char *) r_family, family) == 0) &&
!(r_fullname && strcasecmp((const char*)r_fullname, family) == 0)) !(r_fullname && strcasecmp((const char *) r_fullname, family) == 0))
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_SelectedFontFamilyIsNotTheRequestedOne, ass_msg(MSGL_WARN,
(const char*)(r_fullname ? r_fullname : r_family), family); MSGTR_LIBASS_SelectedFontFamilyIsNotTheRequestedOne,
(const char *) (r_fullname ? r_fullname : r_family), family);
result = FcPatternGetString(rpat, FC_STYLE, 0, &r_style); result = FcPatternGetString(rpat, FC_STYLE, 0, &r_style);
if (result != FcResultMatch) if (result != FcResultMatch)
r_style = NULL; r_style = NULL;
result = FcPatternGetInteger(rpat, FC_SLANT, 0, &r_slant); result = FcPatternGetInteger(rpat, FC_SLANT, 0, &r_slant);
if (result != FcResultMatch) if (result != FcResultMatch)
r_slant = 0; r_slant = 0;
result = FcPatternGetInteger(rpat, FC_WEIGHT, 0, &r_weight); result = FcPatternGetInteger(rpat, FC_WEIGHT, 0, &r_weight);
if (result != FcResultMatch) if (result != FcResultMatch)
r_weight = 0; r_weight = 0;
result = FcPatternGetBool(rpat, FC_EMBOLDEN, 0, &r_embolden); result = FcPatternGetBool(rpat, FC_EMBOLDEN, 0, &r_embolden);
if (result != FcResultMatch) if (result != FcResultMatch)
r_embolden = 0; r_embolden = 0;
mp_msg(MSGT_ASS, MSGL_V, "[ass] Font info: family '%s', style '%s', fullname '%s'," ass_msg(MSGL_V,
" slant %d, weight %d%s\n", "[ass] Font info: family '%s', style '%s', fullname '%s',"
(const char*)r_family, (const char*)r_style, (const char*)r_fullname, " slant %d, weight %d%s\n", (const char *) r_family,
r_slant, r_weight, r_embolden ? ", embolden" : ""); (const char *) r_style, (const char *) r_fullname, r_slant,
r_weight, r_embolden ? ", embolden" : "");
error: error:
if (pat) FcPatternDestroy(pat); if (pat)
if (rpat) FcPatternDestroy(rpat); FcPatternDestroy(pat);
if (fset) FcFontSetDestroy(fset); if (rpat)
return retval; FcPatternDestroy(rpat);
if (fset)
FcFontSetDestroy(fset);
return retval;
} }
/** /**
@ -240,76 +239,79 @@ static char* _select_font(fc_instance_t* priv, const char* family, int treat_fam
* \param index out: font index inside a file * \param index out: font index inside a file
* \param code: the character that should be present in the font, can be 0 * \param code: the character that should be present in the font, can be 0
* \return font file path * \return font file path
*/ */
char* fontconfig_select(fc_instance_t* priv, const char* family, int treat_family_as_pattern, char *fontconfig_select(fc_instance_t *priv, const char *family,
unsigned bold, unsigned italic, int* index, uint32_t code) int treat_family_as_pattern, unsigned bold,
unsigned italic, int *index, uint32_t code)
{ {
char* res = 0; char *res = 0;
if (!priv->config) { if (!priv->config) {
*index = priv->index_default; *index = priv->index_default;
return priv->path_default; return priv->path_default;
} }
if (family && *family) if (family && *family)
res = _select_font(priv, family, treat_family_as_pattern, bold, italic, index, code); res =
if (!res && priv->family_default) { _select_font(priv, family, treat_family_as_pattern, bold,
res = _select_font(priv, priv->family_default, 0, bold, italic, index, code); italic, index, code);
if (res) if (!res && priv->family_default) {
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_UsingDefaultFontFamily, res =
family, bold, italic, res, *index); _select_font(priv, priv->family_default, 0, bold, italic, index,
} code);
if (!res && priv->path_default) { if (res)
res = priv->path_default; ass_msg(MSGL_WARN, MSGTR_LIBASS_UsingDefaultFontFamily,
*index = priv->index_default; family, bold, italic, res, *index);
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_UsingDefaultFont, }
family, bold, italic, res, *index); if (!res && priv->path_default) {
} res = priv->path_default;
if (!res) { *index = priv->index_default;
res = _select_font(priv, "Arial", 0, bold, italic, index, code); ass_msg(MSGL_WARN, MSGTR_LIBASS_UsingDefaultFont,
if (res) family, bold, italic, res, *index);
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_UsingArialFontFamily, }
family, bold, italic, res, *index); if (!res) {
} res = _select_font(priv, "Arial", 0, bold, italic, index, code);
if (res) if (res)
mp_msg(MSGT_ASS, MSGL_V, "fontconfig_select: (%s, %d, %d) -> %s, %d\n", ass_msg(MSGL_WARN, MSGTR_LIBASS_UsingArialFontFamily,
family, bold, italic, res, *index); family, bold, italic, res, *index);
return res; }
if (res)
ass_msg(MSGL_V,
"fontconfig_select: (%s, %d, %d) -> %s, %d\n", family, bold,
italic, res, *index);
return res;
} }
#if (FC_VERSION < 20402) #if (FC_VERSION < 20402)
static char* validate_fname(char* name) static char *validate_fname(char *name)
{ {
char* fname; char *fname;
char* p; char *p;
char* q; char *q;
unsigned code; unsigned code;
int sz = strlen(name); int sz = strlen(name);
q = fname = malloc(sz + 1); q = fname = malloc(sz + 1);
p = name; p = name;
while (*p) { while (*p) {
code = utf8_get_char(&p); code = ass_utf8_get_char(&p);
if (code == 0) if (code == 0)
break; break;
if ( (code > 0x7F) || if ((code > 0x7F) ||
(code == '\\') || (code == '\\') ||
(code == '/') || (code == '/') ||
(code == ':') || (code == ':') ||
(code == '*') || (code == '*') ||
(code == '?') || (code == '?') ||
(code == '<') || (code == '<') ||
(code == '>') || (code == '>') || (code == '|') || (code == 0)) {
(code == '|') || *q++ = '_';
(code == 0)) } else {
{ *q++ = code;
*q++ = '_'; }
} else { if (p - name > sz)
*q++ = code; break;
} }
if (p - name > sz) *q = 0;
break; return fname;
}
*q = 0;
return fname;
} }
#endif #endif
@ -321,87 +323,97 @@ static char* validate_fname(char* name)
* \param idx index of the processed font in library->fontdata * \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 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. * With older FontConfig versions, save the font to ~/.mplayer/fonts.
*/ */
static void process_fontdata(fc_instance_t* priv, ass_library_t* library, FT_Library ftlibrary, int idx) static void process_fontdata(fc_instance_t *priv, ass_library_t *library,
FT_Library ftlibrary, int idx)
{ {
int rc; int rc;
const char* name = library->fontdata[idx].name; const char *name = library->fontdata[idx].name;
const char* data = library->fontdata[idx].data; const char *data = library->fontdata[idx].data;
int data_size = library->fontdata[idx].size; int data_size = library->fontdata[idx].size;
#if (FC_VERSION < 20402) #if (FC_VERSION < 20402)
struct stat st; struct stat st;
char* fname; char *fname;
const char* fonts_dir = library->fonts_dir; const char *fonts_dir = library->fonts_dir;
char buf[1000]; char buf[1000];
FILE* fp = NULL; FILE *fp = NULL;
if (!fonts_dir) if (!fonts_dir)
return; return;
rc = stat(fonts_dir, &st); rc = stat(fonts_dir, &st);
if (rc) { if (rc) {
int res; int res;
#ifndef __MINGW32__ #ifndef __MINGW32__
res = mkdir(fonts_dir, 0700); res = mkdir(fonts_dir, 0700);
#else #else
res = mkdir(fonts_dir); res = mkdir(fonts_dir);
#endif #endif
if (res) { if (res) {
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_FailedToCreateDirectory, fonts_dir); ass_msg(MSGL_WARN,
} MSGTR_LIBASS_FailedToCreateDirectory, fonts_dir);
} else if (!S_ISDIR(st.st_mode)) { }
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_NotADirectory, fonts_dir); } else if (!S_ISDIR(st.st_mode)) {
} ass_msg(MSGL_WARN, MSGTR_LIBASS_NotADirectory, fonts_dir);
}
fname = validate_fname((char*)name);
snprintf(buf, 1000, "%s/%s", fonts_dir, fname); fname = validate_fname((char *) name);
free(fname);
fp = fopen(buf, "wb"); snprintf(buf, 1000, "%s/%s", fonts_dir, fname);
if (!fp) return; free(fname);
fwrite(data, data_size, 1, fp); fp = fopen(buf, "wb");
fclose(fp); if (!fp)
return;
#else // (FC_VERSION >= 20402) fwrite(data, data_size, 1, fp);
FT_Face face; fclose(fp);
FcPattern* pattern;
FcFontSet* fset;
FcBool res;
int face_index, num_faces = 1;
for (face_index = 0; face_index < num_faces; ++face_index) { #else // (FC_VERSION >= 20402)
rc = FT_New_Memory_Face(ftlibrary, (unsigned char*)data, data_size, face_index, &face); FT_Face face;
if (rc) { FcPattern *pattern;
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_ErrorOpeningMemoryFont, name); FcFontSet *fset;
return; FcBool res;
} int face_index, num_faces = 1;
num_faces = face->num_faces;
pattern = FcFreeTypeQueryFace(face, (unsigned char*)name, 0, FcConfigGetBlanks(priv->config)); for (face_index = 0; face_index < num_faces; ++face_index) {
if (!pattern) { rc = FT_New_Memory_Face(ftlibrary, (unsigned char *) data,
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_FunctionCallFailed, "FcFreeTypeQueryFace"); data_size, face_index, &face);
FT_Done_Face(face); if (rc) {
return; ass_msg(MSGL_WARN, MSGTR_LIBASS_ErrorOpeningMemoryFont,
} name);
return;
}
num_faces = face->num_faces;
fset = FcConfigGetFonts(priv->config, FcSetSystem); // somehow it failes when asked for FcSetApplication pattern =
if (!fset) { FcFreeTypeQueryFace(face, (unsigned char *) name, 0,
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_FunctionCallFailed, "FcConfigGetFonts"); FcConfigGetBlanks(priv->config));
FT_Done_Face(face); if (!pattern) {
return; ass_msg(MSGL_WARN, MSGTR_LIBASS_FunctionCallFailed,
} "FcFreeTypeQueryFace");
FT_Done_Face(face);
return;
}
res = FcFontSetAdd(fset, pattern); fset = FcConfigGetFonts(priv->config, FcSetSystem); // somehow it failes when asked for FcSetApplication
if (!res) { if (!fset) {
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_FunctionCallFailed, "FcFontSetAdd"); ass_msg(MSGL_WARN, MSGTR_LIBASS_FunctionCallFailed,
FT_Done_Face(face); "FcConfigGetFonts");
return; FT_Done_Face(face);
} return;
}
FT_Done_Face(face); res = FcFontSetAdd(fset, pattern);
} if (!res) {
ass_msg(MSGL_WARN, MSGTR_LIBASS_FunctionCallFailed,
"FcFontSetAdd");
FT_Done_Face(face);
return;
}
FT_Done_Face(face);
}
#endif #endif
} }
@ -412,128 +424,131 @@ static void process_fontdata(fc_instance_t* priv, ass_library_t* library, FT_Lib
* \param family default font family * \param family default font family
* \param path default font path * \param path default font path
* \return pointer to fontconfig private data * \return pointer to fontconfig private data
*/ */
fc_instance_t* fontconfig_init(ass_library_t* library, FT_Library ftlibrary, const char* family, const char* path, int fc) fc_instance_t *fontconfig_init(ass_library_t *library,
FT_Library ftlibrary, const char *family,
const char *path, int fc, const char *config)
{ {
int rc; int rc;
fc_instance_t* priv = calloc(1, sizeof(fc_instance_t)); fc_instance_t *priv = calloc(1, sizeof(fc_instance_t));
const char* dir = library->fonts_dir; const char *dir = library->fonts_dir;
#ifdef BUILD_DARWIN int i;
char config_path[MAXPATHLEN];
char *config_dir;
#endif
int i;
if (!fc) { if (!fc) {
mp_msg(MSGT_ASS, MSGL_WARN, ass_msg(MSGL_WARN,
MSGTR_LIBASS_FontconfigDisabledDefaultFontWillBeUsed); MSGTR_LIBASS_FontconfigDisabledDefaultFontWillBeUsed);
goto exit; goto exit;
} }
#ifdef BUILD_DARWIN if (config) {
config_dir = OSX_GetBundleResourcesDirectory(); priv->config = FcConfigCreate();
snprintf(config_path, MAXPATHLEN, "%s/etc/fonts/fonts.conf", config_dir); rc = FcConfigParseAndLoad(priv->config, (unsigned char *)config,
free(config_dir); FcTrue);
priv->config = FcConfigCreate(); FcConfigBuildFonts(priv->config);
rc = FcConfigParseAndLoad(priv->config, config_path, FcTrue); FcConfigSetCurrent(priv->config);
FcConfigBuildFonts(priv->config); } else {
FcConfigSetCurrent(priv->config); rc = FcInit();
assert(rc);
priv->config = FcConfigGetCurrent();
}
if (!rc) { if (!rc || !priv->config) {
#else ass_msg(MSGL_FATAL,
rc = FcInit(); MSGTR_LIBASS_FcInitLoadConfigAndFontsFailed);
assert(rc); goto exit;
}
priv->config = FcConfigGetCurrent(); for (i = 0; i < library->num_fontdata; ++i)
if (!priv->config) { process_fontdata(priv, library, ftlibrary, i);
#endif
mp_msg(MSGT_ASS, MSGL_FATAL, MSGTR_LIBASS_FcInitLoadConfigAndFontsFailed);
goto exit;
}
for (i = 0; i < library->num_fontdata; ++i) if (dir) {
process_fontdata(priv, library, ftlibrary, i); if (FcDirCacheValid((const FcChar8 *) dir) == FcFalse) {
ass_msg(MSGL_INFO, MSGTR_LIBASS_UpdatingFontCache);
if (FcGetVersion() >= 20390 && FcGetVersion() < 20400)
ass_msg(MSGL_WARN,
MSGTR_LIBASS_BetaVersionsOfFontconfigAreNotSupported);
// FontConfig >= 2.4.0 updates cache automatically in FcConfigAppFontAddDir()
if (FcGetVersion() < 20390) {
FcFontSet *fcs;
FcStrSet *fss;
fcs = FcFontSetCreate();
fss = FcStrSetCreate();
rc = FcStrSetAdd(fss, (const FcChar8 *) dir);
if (!rc) {
ass_msg(MSGL_WARN,
MSGTR_LIBASS_FcStrSetAddFailed);
goto ErrorFontCache;
}
if (dir) { rc = FcDirScan(fcs, fss, NULL,
if (FcDirCacheValid((const FcChar8 *)dir) == FcFalse) FcConfigGetBlanks(priv->config),
{ (const FcChar8 *) dir, FcFalse);
mp_msg(MSGT_ASS, MSGL_INFO, MSGTR_LIBASS_UpdatingFontCache); if (!rc) {
if (FcGetVersion() >= 20390 && FcGetVersion() < 20400) ass_msg(MSGL_WARN,
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_FcDirScanFailed);
MSGTR_LIBASS_BetaVersionsOfFontconfigAreNotSupported); goto ErrorFontCache;
// FontConfig >= 2.4.0 updates cache automatically in FcConfigAppFontAddDir() }
if (FcGetVersion() < 20390) {
FcFontSet* fcs;
FcStrSet* fss;
fcs = FcFontSetCreate();
fss = FcStrSetCreate();
rc = FcStrSetAdd(fss, (const FcChar8*)dir);
if (!rc) {
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_FcStrSetAddFailed);
goto ErrorFontCache;
}
rc = FcDirScan(fcs, fss, NULL, FcConfigGetBlanks(priv->config), rc = FcDirSave(fcs, fss, (const FcChar8 *) dir);
(const FcChar8 *)dir, FcFalse); if (!rc) {
if (!rc) { ass_msg(MSGL_WARN, MSGTR_LIBASS_FcDirSave);
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_FcDirScanFailed); goto ErrorFontCache;
goto ErrorFontCache; }
} ErrorFontCache:
;
}
}
rc = FcDirSave(fcs, fss, (const FcChar8 *)dir); rc = FcConfigAppFontAddDir(priv->config, (const FcChar8 *) dir);
if (!rc) { if (!rc) {
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_FcDirSave); ass_msg(MSGL_WARN,
goto ErrorFontCache; MSGTR_LIBASS_FcConfigAppFontAddDirFailed);
} }
ErrorFontCache: }
;
}
}
rc = FcConfigAppFontAddDir(priv->config, (const FcChar8*)dir); priv->family_default = family ? strdup(family) : NULL;
if (!rc) { exit:
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_FcConfigAppFontAddDirFailed); priv->path_default = path ? strdup(path) : NULL;
} priv->index_default = 0;
}
priv->family_default = family ? strdup(family) : NULL; return priv;
exit:
priv->path_default = path ? strdup(path) : NULL;
priv->index_default = 0;
return priv;
} }
#else /* CONFIG_FONTCONFIG */ #else /* CONFIG_FONTCONFIG */
char* fontconfig_select(fc_instance_t* priv, const char* family, int treat_family_as_pattern, char *fontconfig_select(fc_instance_t *priv, const char *family,
unsigned bold, unsigned italic, int* index, uint32_t code) int treat_family_as_pattern, unsigned bold,
unsigned italic, int *index, uint32_t code)
{ {
*index = priv->index_default; *index = priv->index_default;
return priv->path_default; return priv->path_default;
} }
fc_instance_t* fontconfig_init(ass_library_t* library, FT_Library ftlibrary, const char* family, const char* path, int fc) fc_instance_t *fontconfig_init(ass_library_t *library,
FT_Library ftlibrary, const char *family,
const char *path, int fc)
{ {
fc_instance_t* priv; fc_instance_t *priv;
mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_FontconfigDisabledDefaultFontWillBeUsed); ass_msg(MSGL_WARN,
MSGTR_LIBASS_FontconfigDisabledDefaultFontWillBeUsed);
priv = calloc(1, sizeof(fc_instance_t));
priv = calloc(1, sizeof(fc_instance_t));
priv->path_default = strdup(path);
priv->index_default = 0; priv->path_default = strdup(path);
return priv; priv->index_default = 0;
return priv;
} }
#endif #endif
void fontconfig_done(fc_instance_t* priv) void fontconfig_done(fc_instance_t *priv)
{ {
// don't call FcFini() here, library can still be used by some code // don't call FcFini() here, library can still be used by some code
if (priv && priv->path_default) free(priv->path_default); if (priv && priv->path_default)
if (priv && priv->family_default) free(priv->family_default); free(priv->path_default);
if (priv) free(priv); if (priv && priv->family_default)
free(priv->family_default);
if (priv)
free(priv);
} }

14
aegisub/libass/ass_fontconfig.h
View file

@ -1,5 +1,3 @@
// -*- c-basic-offset: 8; indent-tabs-mode: t -*-
// vim:ts=8:sw=8:noet:ai:
/* /*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com> * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
* *
@ -34,8 +32,12 @@
typedef struct fc_instance_s fc_instance_t; typedef struct fc_instance_s fc_instance_t;
fc_instance_t* fontconfig_init(ass_library_t* library, FT_Library ftlibrary, const char* family, const char* path, int fc); fc_instance_t *fontconfig_init(ass_library_t *library,
char* fontconfig_select(fc_instance_t* priv, const char* family, int treat_family_as_pattern, unsigned bold, unsigned italic, int* index, uint32_t code); FT_Library ftlibrary, const char *family,
void fontconfig_done(fc_instance_t* priv); const char *path, int fc, const char *config);
char *fontconfig_select(fc_instance_t *priv, const char *family,
int treat_family_as_pattern, unsigned bold,
unsigned italic, int *index, uint32_t code);
void fontconfig_done(fc_instance_t *priv);
#endif /* LIBASS_FONTCONFIG_H */ #endif /* LIBASS_FONTCONFIG_H */

119
aegisub/libass/ass_library.c
View file

@ -1,5 +1,3 @@
// -*- c-basic-offset: 8; indent-tabs-mode: t -*-
// vim:ts=8:sw=8:noet:ai:
/* /*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com> * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
* *
@ -29,87 +27,90 @@
#include "ass_library.h" #include "ass_library.h"
ass_library_t* ass_library_init(void) ass_library_t *ass_library_init(void)
{ {
return calloc(1, sizeof(ass_library_t)); return calloc(1, sizeof(ass_library_t));
} }
void ass_library_done(ass_library_t* priv) void ass_library_done(ass_library_t *priv)
{ {
if (priv) { if (priv) {
ass_set_fonts_dir(priv, NULL); ass_set_fonts_dir(priv, NULL);
ass_set_style_overrides(priv, NULL); ass_set_style_overrides(priv, NULL);
ass_clear_fonts(priv); ass_clear_fonts(priv);
free(priv); free(priv);
} }
} }
void ass_set_fonts_dir(ass_library_t* priv, const char* fonts_dir) void ass_set_fonts_dir(ass_library_t *priv, const char *fonts_dir)
{ {
if (priv->fonts_dir) if (priv->fonts_dir)
free(priv->fonts_dir); free(priv->fonts_dir);
priv->fonts_dir = fonts_dir ? strdup(fonts_dir) : 0; priv->fonts_dir = fonts_dir ? strdup(fonts_dir) : 0;
} }
void ass_set_extract_fonts(ass_library_t* priv, int extract) void ass_set_extract_fonts(ass_library_t *priv, int extract)
{ {
priv->extract_fonts = !!extract; priv->extract_fonts = !!extract;
} }
void ass_set_style_overrides(ass_library_t* priv, char** list) void ass_set_style_overrides(ass_library_t *priv, char **list)
{ {
char** p; char **p;
char** q; char **q;
int cnt; 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) {} if (priv->style_overrides) {
for (p = priv->style_overrides; *p; ++p)
free(*p);
free(priv->style_overrides);
}
priv->style_overrides = malloc((cnt + 1) * sizeof(char*)); if (!list)
for (p = list, q = priv->style_overrides; *p; ++p, ++q) return;
*q = strdup(*p);
priv->style_overrides[cnt] = NULL; 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) static void grow_array(void **array, int nelem, size_t elsize)
{ {
if (!(nelem & 31)) if (!(nelem & 31))
*array = realloc(*array, (nelem + 32) * elsize); *array = realloc(*array, (nelem + 32) * elsize);
} }
void ass_add_font(ass_library_t* priv, char* name, char* data, int size) void ass_add_font(ass_library_t *priv, char *name, char *data, int size)
{ {
int idx = priv->num_fontdata; int idx = priv->num_fontdata;
if (!name || !data || !size) if (!name || !data || !size)
return; return;
grow_array((void**)&priv->fontdata, priv->num_fontdata, sizeof(*priv->fontdata)); grow_array((void **) &priv->fontdata, priv->num_fontdata,
sizeof(*priv->fontdata));
priv->fontdata[idx].name = strdup(name);
priv->fontdata[idx].name = strdup(name);
priv->fontdata[idx].data = malloc(size);
memcpy(priv->fontdata[idx].data, data, size); priv->fontdata[idx].data = malloc(size);
memcpy(priv->fontdata[idx].data, data, size);
priv->fontdata[idx].size = size;
priv->fontdata[idx].size = size;
priv->num_fontdata ++;
priv->num_fontdata++;
} }
void ass_clear_fonts(ass_library_t* priv) void ass_clear_fonts(ass_library_t *priv)
{ {
int i; int i;
for (i = 0; i < priv->num_fontdata; ++i) { for (i = 0; i < priv->num_fontdata; ++i) {
free(priv->fontdata[i].name); free(priv->fontdata[i].name);
free(priv->fontdata[i].data); free(priv->fontdata[i].data);
} }
free(priv->fontdata); free(priv->fontdata);
priv->fontdata = NULL; priv->fontdata = NULL;
priv->num_fontdata = 0; priv->num_fontdata = 0;
} }

20
aegisub/libass/ass_library.h
View file

@ -1,5 +1,3 @@
// -*- c-basic-offset: 8; indent-tabs-mode: t -*-
// vim:ts=8:sw=8:noet:ai:
/* /*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com> * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
* *
@ -24,18 +22,18 @@
#define LIBASS_LIBRARY_H #define LIBASS_LIBRARY_H
typedef struct ass_fontdata_s { typedef struct ass_fontdata_s {
char* name; char *name;
char* data; char *data;
int size; int size;
} ass_fontdata_t; } ass_fontdata_t;
struct ass_library_s { struct ass_library_s {
char* fonts_dir; char *fonts_dir;
int extract_fonts; int extract_fonts;
char** style_overrides; char **style_overrides;
ass_fontdata_t* fontdata; ass_fontdata_t *fontdata;
int num_fontdata; int num_fontdata;
}; };
#endif /* LIBASS_LIBRARY_H */ #endif /* LIBASS_LIBRARY_H */

4856
aegisub/libass/ass_render.c
View file

File diff suppressed because it is too large Load diff

119
aegisub/libass/ass_types.h
View file

@ -1,5 +1,3 @@
// -*- c-basic-offset: 8; indent-tabs-mode: t -*-
// vim:ts=8:sw=8:noet:ai:
/* /*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com> * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
* *
@ -34,31 +32,31 @@
/// ass Style: line /// ass Style: line
typedef struct ass_style_s { typedef struct ass_style_s {
char* Name; char *Name;
char* FontName; char *FontName;
double FontSize; double FontSize;
uint32_t PrimaryColour; uint32_t PrimaryColour;
uint32_t SecondaryColour; uint32_t SecondaryColour;
uint32_t OutlineColour; uint32_t OutlineColour;
uint32_t BackColour; uint32_t BackColour;
int Bold; int Bold;
int Italic; int Italic;
int Underline; int Underline;
int StrikeOut; int StrikeOut;
double ScaleX; double ScaleX;
double ScaleY; double ScaleY;
double Spacing; double Spacing;
int Angle; int Angle;
int BorderStyle; int BorderStyle;
double Outline; double Outline;
double Shadow; double Shadow;
int Alignment; int Alignment;
int MarginL; int MarginL;
int MarginR; int MarginR;
int MarginV; int MarginV;
// int AlphaLevel; // int AlphaLevel;
int Encoding; int Encoding;
int treat_fontname_as_pattern; int treat_fontname_as_pattern;
} ass_style_t; } ass_style_t;
typedef struct render_priv_s render_priv_t; typedef struct render_priv_s render_priv_t;
@ -66,20 +64,20 @@ typedef struct render_priv_s render_priv_t;
/// ass_event_t corresponds to a single Dialogue line /// ass_event_t corresponds to a single Dialogue line
/// Text is stored as-is, style overrides will be parsed later /// Text is stored as-is, style overrides will be parsed later
typedef struct ass_event_s { typedef struct ass_event_s {
long long Start; // ms long long Start; // ms
long long Duration; // ms long long Duration; // ms
int ReadOrder; int ReadOrder;
int Layer; int Layer;
int Style; int Style;
char* Name; char *Name;
int MarginL; int MarginL;
int MarginR; int MarginR;
int MarginV; int MarginV;
char* Effect; char *Effect;
char* Text; char *Text;
render_priv_t* render_priv; render_priv_t *render_priv;
} ass_event_t; } ass_event_t;
typedef struct parser_priv_s parser_priv_t; typedef struct parser_priv_s parser_priv_t;
@ -89,31 +87,32 @@ typedef struct ass_library_s ass_library_t;
/// ass track represent either an external script or a matroska subtitle stream (no real difference between them) /// 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) /// it can be used in rendering after the headers are parsed (i.e. events format line read)
typedef struct ass_track_s { typedef struct ass_track_s {
int n_styles; // amount used int n_styles; // amount used
int max_styles; // amount allocated int max_styles; // amount allocated
int n_events; int n_events;
int max_events; int max_events;
ass_style_t* styles; // array of styles, max_styles length, n_styles used ass_style_t *styles; // array of styles, max_styles length, n_styles used
ass_event_t* events; // the same as styles ass_event_t *events; // the same as styles
char* style_format; // style format line (everything after "Format: ") char *style_format; // style format line (everything after "Format: ")
char* event_format; // event format line char *event_format; // event format line
enum {TRACK_TYPE_UNKNOWN = 0, TRACK_TYPE_ASS, TRACK_TYPE_SSA} track_type; enum { TRACK_TYPE_UNKNOWN =
0, TRACK_TYPE_ASS, TRACK_TYPE_SSA } track_type;
// script header fields
int PlayResX;
int PlayResY;
double Timer;
int WrapStyle;
char ScaledBorderAndShadow;
// script header fields
int default_style; // index of default style int PlayResX;
char* name; // file name in case of external subs, 0 for streams int PlayResY;
double Timer;
int WrapStyle;
char ScaledBorderAndShadow;
ass_library_t* library;
parser_priv_t* parser_priv; int default_style; // index of default style
char *name; // file name in case of external subs, 0 for streams
ass_library_t *library;
parser_priv_t *parser_priv;
} ass_track_t; } ass_track_t;
#endif /* LIBASS_TYPES_H */ #endif /* LIBASS_TYPES_H */

352
aegisub/libass/ass_utils.c
View file

@ -1,5 +1,3 @@
// -*- c-basic-offset: 8; indent-tabs-mode: t -*-
// vim:ts=8:sw=8:noet:ai:
/* /*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com> * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
* *
@ -27,109 +25,301 @@
#include <ft2build.h> #include <ft2build.h>
#include FT_GLYPH_H #include FT_GLYPH_H
#include "mputils.h"
#include "ass_utils.h" #include "ass_utils.h"
int mystrtoi(char** p, int* res) int mystrtoi(char **p, int *res)
{ {
// NOTE: base argument is ignored, but not used in libass anyway // NOTE: base argument is ignored, but not used in libass anyway
double temp_res; double temp_res;
char* start = *p; char *start = *p;
temp_res = strtod(*p, p); temp_res = strtod(*p, p);
*res = (int) (temp_res + 0.5); *res = (int) (temp_res + (temp_res > 0 ? 0.5 : -0.5));
if (*p != start) return 1; if (*p != start)
else return 0; return 1;
else
return 0;
} }
int mystrtoll(char** p, long long* res) int mystrtoll(char **p, long long *res)
{ {
double temp_res; double temp_res;
char* start = *p; char *start = *p;
temp_res = strtod(*p, p); temp_res = strtod(*p, p);
*res = (long long) (temp_res + 0.5); *res = (int) (temp_res + (temp_res > 0 ? 0.5 : -0.5));
if (*p != start) return 1; if (*p != start)
else return 0; return 1;
else
return 0;
} }
int mystrtou32(char** p, int base, uint32_t* res) int mystrtou32(char **p, int base, uint32_t *res)
{ {
char* start = *p; char *start = *p;
*res = strtoll(*p, p, base); *res = strtoll(*p, p, base);
if (*p != start) return 1; if (*p != start)
else return 0; return 1;
else
return 0;
} }
int mystrtod(char** p, double* res) int mystrtod(char **p, double *res)
{ {
char* start = *p; char *start = *p;
*res = strtod(*p, p); *res = strtod(*p, p);
if (*p != start) return 1; if (*p != start)
else return 0; return 1;
else
return 0;
} }
int strtocolor(char** q, uint32_t* res) int strtocolor(char **q, uint32_t *res)
{ {
uint32_t color = 0; uint32_t color = 0;
int result; int result;
char* p = *q; char *p = *q;
if (*p == '&') ++p;
else mp_msg(MSGT_ASS, MSGL_DBG2, "suspicious color format: \"%s\"\n", p);
if (*p == 'H' || *p == 'h') {
++p;
result = mystrtou32(&p, 16, &color);
} else {
result = mystrtou32(&p, 0, &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; if (*p == '&')
return result; ++p;
else
ass_msg(MSGL_DBG2, "suspicious color format: \"%s\"\n", p);
if (*p == 'H' || *p == 'h') {
++p;
result = mystrtou32(&p, 16, &color);
} else {
result = mystrtou32(&p, 0, &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 // Return a boolean value for a string
char parse_bool(char* str) { char parse_bool(char *str)
while (*str == ' ' || *str == '\t') {
str++; while (*str == ' ' || *str == '\t')
if (!strncasecmp(str, "yes", 3)) str++;
return 1; if (!strncasecmp(str, "yes", 3))
else if (strtol(str, NULL, 10) > 0) return 1;
return 1; else if (strtol(str, NULL, 10) > 0)
return 0; return 1;
return 0;
} }
#if 0 void ass_msg(int lvl, char *fmt, ...)
static void sprint_tag(uint32_t tag, char* dst)
{ {
dst[0] = (tag >> 24) & 0xFF; va_list va;
dst[1] = (tag >> 16) & 0xFF; if (lvl > MSGL_INFO)
dst[2] = (tag >> 8) & 0xFF; return;
dst[3] = tag & 0xFF; va_start(va, fmt);
dst[4] = 0; vprintf(fmt, va);
va_end(va);
} }
void dump_glyph(FT_Glyph g) unsigned ass_utf8_get_char(char **str)
{ {
char tag[5]; uint8_t *strp = (uint8_t *) * str;
int i; unsigned c = *strp++;
FT_OutlineGlyph og = (FT_OutlineGlyph)g; unsigned mask = 0x80;
FT_Outline* o = &(og->outline); int len = -1;
sprint_tag(g->format, tag); while (c & mask) {
printf("glyph: %p \n", g); mask >>= 1;
printf("format: %s \n", tag); len++;
printf("outline: %p \n", o); }
printf("contours: %d, points: %d, points ptr: %p \n", o->n_contours, o->n_points, o->points); if (len <= 0 || len > 4)
for (i = 0; i < o->n_points; ++i) { goto no_utf8;
printf(" point %f, %f \n", d6_to_double(o->points[i].x), d6_to_double(o->points[i].y)); 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;
}
// gaussian blur
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;
}
}
#ifdef CONFIG_ENCA
void *ass_guess_buffer_cp(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(MSGL_V, "ENCA supported languages: ");
for (i = 0; i < langcnt; i++) {
ass_msg(MSGL_V, "%s ", languages[i]);
}
ass_msg(MSGL_V, "\n");
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(MSGL_INFO, "ENCA detected charset: %s\n", tmp);
}
enca_analyser_free(analyser);
}
free(languages);
if (!detected_sub_cp) {
detected_sub_cp = strdup(fallback);
ass_msg(MSGL_INFO,
"ENCA detection failed: fallback to %s\n", fallback);
}
return detected_sub_cp;
} }
#endif #endif

120
aegisub/libass/ass_utils.h
View file

@ -1,5 +1,3 @@
// -*- c-basic-offset: 8; indent-tabs-mode: t -*-
// vim:ts=8:sw=8:noet:ai:
/* /*
* Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com> * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
* *
@ -23,44 +21,108 @@
#ifndef LIBASS_UTILS_H #ifndef LIBASS_UTILS_H
#define LIBASS_UTILS_H #define LIBASS_UTILS_H
#include <stdio.h>
#include <stdarg.h>
#include <stdint.h> #include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
int mystrtoi(char** p, int* res); #ifdef CONFIG_ENCA
int mystrtoll(char** p, long long* res); #include <enca.h>
int mystrtou32(char** p, int base, uint32_t* res); #endif
int mystrtod(char** p, double* res);
int strtocolor(char** q, uint32_t* res);
char parse_bool(char* str);
static inline int d6_to_int(int x) { #include "help_mp.h"
return (x + 32) >> 6;
#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))
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(char **q, uint32_t *res);
char parse_bool(char *str);
unsigned ass_utf8_get_char(char **str);
void ass_msg(int lvl, char *fmt, ...);
void ass_gauss_blur(unsigned char *buffer, unsigned short *tmp2,
int width, int height, int stride, int *m2,
int r, int mwidth);
void *ass_guess_buffer_cp(unsigned char *buffer, int buflen,
char *preferred_language, char *fallback);
static inline int d6_to_int(int x)
{
return (x + 32) >> 6;
} }
static inline int d16_to_int(int x) { static inline int d16_to_int(int x)
return (x + 32768) >> 16; {
return (x + 32768) >> 16;
} }
static inline int int_to_d6(int x) { static inline int int_to_d6(int x)
return x << 6; {
return x << 6;
} }
static inline int int_to_d16(int x) { static inline int int_to_d16(int x)
return x << 16; {
return x << 16;
} }
static inline int d16_to_d6(int x) { static inline int d16_to_d6(int x)
return (x + 512) >> 10; {
return (x + 512) >> 10;
} }
static inline int d6_to_d16(int x) { static inline int d6_to_d16(int x)
return x << 10; {
return x << 10;
} }
static inline double d6_to_double(int x) { static inline double d6_to_double(int x)
return x / 64.; {
return x / 64.;
} }
static inline int double_to_d6(double x) { static inline int double_to_d6(double x)
return (int)(x * 64); {
return (int) (x * 64);
} }
static inline double d16_to_double(int x) { static inline double d16_to_double(int x)
return ((double)x) / 0x10000; {
return ((double) x) / 0x10000;
} }
static inline int double_to_d16(double x) { static inline int double_to_d16(double x)
return (int)(x * 0x10000); {
return (int) (x * 0x10000);
} }
#endif /* LIBASS_UTILS_H */ #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 */

7
aegisub/libass/help_mp.h
View file

@ -2,6 +2,7 @@
#define __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_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_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_NoStyleNamedXFoundUsingY "[ass] [%p] Warning: no style named '%s' found, using '%s'\n"
#define MSGTR_LIBASS_BadTimestamp "[ass] bad timestamp\n" #define MSGTR_LIBASS_BadTimestamp "[ass] bad timestamp\n"
#define MSGTR_LIBASS_BadEncodedDataSize "[ass] bad encoded data size\n" #define MSGTR_LIBASS_BadEncodedDataSize "[ass] bad encoded data size\n"
@ -19,7 +20,7 @@
#define MSGTR_LIBASS_NotADirectory "[ass] Not a 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_TooManyFonts "[ass] Too many fonts\n"
#define MSGTR_LIBASS_ErrorOpeningFont "[ass] Error opening font: %s, %d\n" #define MSGTR_LIBASS_ErrorOpeningFont "[ass] Error opening font: %s, %d\n"
#define MSGTR_LIBASS_SelectedFontFamilyIsNotTheRequestedOne "[ass] fontconfig: Selected font family is not the requested one: '%s' != '%s'\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_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_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_UsingArialFontFamily "[ass] fontconfig_select: Using 'Arial' font family: (%s, %d, %d) -> %s, %d\n"
@ -46,11 +47,9 @@
#define MSGTR_LIBASS_EmptyEvent "[ass] Empty event!\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_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_EventHeightHasChanged "[ass] Warning! Event height has changed! \n"
#define MSGTR_LIBASS_GlyphNotFoundReselectingFont "[ass] Glyph 0x%X not found, reselecting font for (%s, %d, %d)\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_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_ErrorOpeningMemoryFont "[ass] Error opening memory font: %s\n"
#define MSGTR_LIBASS_NoCharmaps "[ass] font face with no charmaps\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" #define MSGTR_LIBASS_NoCharmapAutodetected "[ass] no charmap autodetected, trying the first one\n"
#define MSGTR_LIBASS_GlyphBBoxTooLarge "[ass] Glyph bounding box too large: %dx%dpx\n"
#endif #endif

2
aegisub/src/subtitles_provider_libass.cpp
View file

@ -73,7 +73,7 @@ LibassSubtitlesProvider::LibassSubtitlesProvider() {
ass_renderer = ass_renderer_init(ass_library); ass_renderer = ass_renderer_init(ass_library);
if (!ass_renderer) throw _T("ass_renderer_init failed"); if (!ass_renderer) throw _T("ass_renderer_init failed");
ass_set_font_scale(ass_renderer, 1.); ass_set_font_scale(ass_renderer, 1.);
ass_set_fonts(ass_renderer, NULL, "Sans"); ass_set_fonts(ass_renderer, NULL, "Sans", 1, NULL);
} }