Remove internal libass tree

Remove the libass/ directory and use the newest standalone version of
the library instead.

1 files changed, 0 insertions, 371 deletions

diff --git a/libass/ass_font.c b/libass/ass_font.c
deleted file mode 100644
index 73ee1c4a5b..0000000000
--- a/libass/ass_font.c
+++ /dev/null
@@ -1,371 +0,0 @@
-// -*- c-basic-offset: 8; indent-tabs-mode: t -*-
-// vim:ts=8:sw=8:noet:ai:
-/*
- * Copyright (C) 2006 Evgeniy Stepanov <eugeni.stepanov@gmail.com>
- *
- * This file is part of libass.
- *
- * libass is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * libass is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with libass; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "config.h"
-
-#include <inttypes.h>
-#include <ft2build.h>
-#include FT_FREETYPE_H
-#include FT_SYNTHESIS_H
-#include FT_GLYPH_H
-#include FT_TRUETYPE_TABLES_H
-
-#include "ass.h"
-#include "ass_library.h"
-#include "ass_font.h"
-#include "ass_bitmap.h"
-#include "ass_cache.h"
-#include "ass_fontconfig.h"
-#include "ass_utils.h"
-#include "mputils.h"
-
-/**
- * Select Microfost Unicode CharMap, if the font has one.
- * Otherwise, let FreeType decide.
- */
-static void charmap_magic(FT_Face face)
-{
-	int i;
-	for (i = 0; i < face->num_charmaps; ++i) {
-		FT_CharMap cmap = face->charmaps[i];
-		unsigned pid = cmap->platform_id;
-		unsigned eid = cmap->encoding_id;
-		if (pid == 3 /*microsoft*/ && (eid == 1 /*unicode bmp*/ || eid == 10 /*full unicode*/)) {
-			FT_Set_Charmap(face, cmap);
-			return;
-		}
-	}
-
-	if (!face->charmap) {
-		if (face->num_charmaps == 0) {
-			mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_NoCharmaps);
-			return;
-		}
-		mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_NoCharmapAutodetected);
-		FT_Set_Charmap(face, face->charmaps[0]);
-		return;
-	}
-}
-
-static void update_transform(ass_font_t* font)
-{
-	int i;
-	FT_Matrix m;
-	m.xx = double_to_d16(font->scale_x);
-	m.yy = double_to_d16(font->scale_y);
-	m.xy = m.yx = 0;
-	for (i = 0; i < font->n_faces; ++i)
-		FT_Set_Transform(font->faces[i], &m, &font->v);
-}
-
-/**
- * \brief find a memory font by name
- */
-static int find_font(ass_library_t* library, char* name)
-{
-	int i;
-	for (i = 0; i < library->num_fontdata; ++i)
-		if (strcasecmp(name, library->fontdata[i].name) == 0)
-			return i;
-	return -1;
-}
-
-static void face_set_size(FT_Face face, double size);
-
-static void buggy_font_workaround(FT_Face face)
-{
-	// Some fonts have zero Ascender/Descender fields in 'hhea' table.
-	// In this case, get the information from 'os2' table or, as
-	// a last resort, from face.bbox.
-	if (face->ascender + face->descender == 0 || face->height == 0) {
-		TT_OS2 *os2 = FT_Get_Sfnt_Table(face, ft_sfnt_os2);
-		if (os2) {
-			face->ascender = os2->sTypoAscender;
-			face->descender = os2->sTypoDescender;
-			face->height = face->ascender - face->descender;
-		} else {
-			face->ascender = face->bbox.yMax;
-			face->descender = face->bbox.yMin;
-			face->height = face->ascender - face->descender;
-		}
-	}
-}
-
-/**
- * \brief Select a face with the given charcode and add it to ass_font_t
- * \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)
-{
-	char* path;
-	int index;
-	FT_Face face;
-	int error;
-	int mem_idx;
-
-	if (font->n_faces == ASS_FONT_MAX_FACES)
-		return -1;
-
-	path = fontconfig_select(fc_priv, font->desc.family, font->desc.treat_family_as_pattern, font->desc.bold,
-					      font->desc.italic, &index, ch);
-	if (!path)
-		return -1;
-
-	mem_idx = find_font(font->library, path);
-	if (mem_idx >= 0) {
-		error = FT_New_Memory_Face(font->ftlibrary, (unsigned char*)font->library->fontdata[mem_idx].data,
-					   font->library->fontdata[mem_idx].size, 0, &face);
-		if (error) {
-			mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_ErrorOpeningMemoryFont, path);
-			return -1;
-		}
-	} else {
-		error = FT_New_Face(font->ftlibrary, path, index, &face);
-		if (error) {
-			mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_ErrorOpeningFont, path, index);
-			return -1;
-		}
-	}
-	charmap_magic(face);
-	buggy_font_workaround(face);
-
-	font->faces[font->n_faces++] = face;
-	update_transform(font);
-	face_set_size(face, font->size);
-	return font->n_faces - 1;
-}
-
-/**
- * \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)
-{
-	int error;
-	ass_font_t* fontp;
-	ass_font_t font;
-
-	fontp = ass_font_cache_find(desc);
-	if (fontp)
-		return fontp;
-
-	font.library = library;
-	font.ftlibrary = ftlibrary;
-	font.n_faces = 0;
-	font.desc.family = strdup(desc->family);
-	font.desc.treat_family_as_pattern = desc->treat_family_as_pattern;
-	font.desc.bold = desc->bold;
-	font.desc.italic = desc->italic;
-
-	font.scale_x = font.scale_y = 1.;
-	font.v.x = font.v.y = 0;
-	font.size = 0.;
-
-	error = add_face(fc_priv, &font, 0);
-	if (error == -1) {
-		free(font.desc.family);
-		return 0;
-	} else
-		return ass_font_cache_add(&font);
-}
-
-/**
- * \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)
-{
-	font->scale_x = scale_x;
-	font->scale_y = scale_y;
-	font->v.x = v->x;
-	font->v.y = v->y;
-	update_transform(font);
-}
-
-static void face_set_size(FT_Face face, double size)
-{
-#if (FREETYPE_MAJOR > 2) || ((FREETYPE_MAJOR == 2) && (FREETYPE_MINOR > 1))
-	TT_HoriHeader *hori = FT_Get_Sfnt_Table(face, ft_sfnt_hhea);
-	TT_OS2 *os2 = FT_Get_Sfnt_Table(face, ft_sfnt_os2);
-	double mscale = 1.;
-	FT_Size_RequestRec rq;
-	FT_Size_Metrics *m = &face->size->metrics;
-	// VSFilter uses metrics from TrueType OS/2 table
-	// The idea was borrowed from asa (http://asa.diac24.net)
-	if (hori && os2) {
-		int hori_height = hori->Ascender - hori->Descender;
-		int os2_height = os2->usWinAscent + os2->usWinDescent;
-		if (hori_height && os2_height)
-			mscale = (double)hori_height / os2_height;
-	}
-	memset(&rq, 0, sizeof(rq));
-	rq.type = FT_SIZE_REQUEST_TYPE_REAL_DIM;
-	rq.width = 0;
-	rq.height = double_to_d6(size * mscale);
-	rq.horiResolution = rq.vertResolution = 0;
-	FT_Request_Size(face, &rq);
-	m->ascender /= mscale;
-	m->descender /= mscale;
-	m->height /= mscale;
-#else
-	FT_Set_Char_Size(face, 0, double_to_d6(size), 0, 0);
-#endif
-}
-
-/**
- * \brief Set font size
- **/
-void ass_font_set_size(ass_font_t* font, double size)
-{
-	int i;
-	if (font->size != size) {
-		font->size = size;
-		for (i = 0; i < font->n_faces; ++i)
-			face_set_size(font->faces[i], size);
-	}
-}
-
-/**
- * \brief Get maximal font ascender and descender.
- * \param ch character code
- * The values are extracted from the font face that provides glyphs for the given character
- **/
-void ass_font_get_asc_desc(ass_font_t* font, uint32_t ch, int* asc, int* desc)
-{
-	int i;
-	for (i = 0; i < font->n_faces; ++i) {
-		FT_Face face = font->faces[i];
-		if (FT_Get_Char_Index(face, ch)) {
-			*asc = face->size->metrics.ascender;
-			*desc = - face->size->metrics.descender;
-			return;
-		}
-	}
-
-	*asc = *desc = 0;
-}
-
-/**
- * \brief Get a glyph
- * \param ch character code
- **/
-FT_Glyph ass_font_get_glyph(void* fontconfig_priv, ass_font_t* font, uint32_t ch, ass_hinting_t hinting)
-{
-	int error;
-	int index = 0;
-	int i;
-	FT_Glyph glyph;
-	FT_Face face = 0;
-	int flags = 0;
-
-	if (ch < 0x20)
-		return 0;
-	if (font->n_faces == 0)
-		return 0;
-
-	for (i = 0; i < font->n_faces; ++i) {
-		face = font->faces[i];
-		index = FT_Get_Char_Index(face, ch);
-		if (index)
-			break;
-	}
-
-#ifdef CONFIG_FONTCONFIG
-	if (index == 0) {
-		int face_idx;
-		mp_msg(MSGT_ASS, MSGL_INFO, MSGTR_LIBASS_GlyphNotFoundReselectingFont,
-		       ch, font->desc.family, font->desc.bold, font->desc.italic);
-		face_idx = add_face(fontconfig_priv, font, ch);
-		if (face_idx >= 0) {
-			face = font->faces[face_idx];
-			index = FT_Get_Char_Index(face, ch);
-			if (index == 0) {
-				mp_msg(MSGT_ASS, MSGL_ERR, MSGTR_LIBASS_GlyphNotFound,
-				       ch, font->desc.family, font->desc.bold, font->desc.italic);
-			}
-		}
-	}
-#endif
-
-	switch (hinting) {
-	case ASS_HINTING_NONE: flags = FT_LOAD_NO_HINTING; break;
-	case ASS_HINTING_LIGHT: flags = FT_LOAD_FORCE_AUTOHINT | FT_LOAD_TARGET_LIGHT; break;
-	case ASS_HINTING_NORMAL: flags = FT_LOAD_FORCE_AUTOHINT; break;
-	case ASS_HINTING_NATIVE: flags = 0; break;
-	}
-
-	error = FT_Load_Glyph(face, index, FT_LOAD_NO_BITMAP | flags);
-	if (error) {
-		mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_ErrorLoadingGlyph);
-		return 0;
-	}
-
-#if (FREETYPE_MAJOR > 2) || \
-    ((FREETYPE_MAJOR == 2) && (FREETYPE_MINOR >= 2)) || \
-    ((FREETYPE_MAJOR == 2) && (FREETYPE_MINOR == 1) && (FREETYPE_PATCH >= 10))
-// FreeType >= 2.1.10 required
-	if (!(face->style_flags & FT_STYLE_FLAG_ITALIC) &&
-			(font->desc.italic > 55)) {
-		FT_GlyphSlot_Oblique(face->glyph);
-	}
-#endif
-	error = FT_Get_Glyph(face->glyph, &glyph);
-	if (error) {
-		mp_msg(MSGT_ASS, MSGL_WARN, MSGTR_LIBASS_ErrorLoadingGlyph);
-		return 0;
-	}
-
-	return glyph;
-}
-
-/**
- * \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 v = {0, 0};
-	int i;
-
-	for (i = 0; i < font->n_faces; ++i) {
-		FT_Face face = font->faces[i];
-		int i1 = FT_Get_Char_Index(face, c1);
-		int i2 = FT_Get_Char_Index(face, c2);
-		if (i1 && i2) {
-			if (FT_HAS_KERNING(face))
-				FT_Get_Kerning(face, i1, i2, FT_KERNING_DEFAULT, &v);
-			return v;
-		}
-		if (i1 || i2) // these glyphs are from different font faces, no kerning information
-			return v;
-	}
-	return v;
-}
-
-/**
- * \brief Deallocate ass_font_t
- **/
-void ass_font_free(ass_font_t* font)
-{
-	int i;
-	for (i = 0; i < font->n_faces; ++i)
-		if (font->faces[i]) FT_Done_Face(font->faces[i]);
-	if (font->desc.family) free(font->desc.family);
-	free(font);
-}