diff options
Diffstat (limited to 'Build/source/libs/poppler/poppler-0.20.2/poppler/CairoFontEngine.cc')
| -rw-r--r-- | Build/source/libs/poppler/poppler-0.20.2/poppler/CairoFontEngine.cc | 804 |
1 files changed, 0 insertions, 804 deletions
diff --git a/Build/source/libs/poppler/poppler-0.20.2/poppler/CairoFontEngine.cc b/Build/source/libs/poppler/poppler-0.20.2/poppler/CairoFontEngine.cc deleted file mode 100644 index c4493e87a3a..00000000000 --- a/Build/source/libs/poppler/poppler-0.20.2/poppler/CairoFontEngine.cc +++ /dev/null @@ -1,804 +0,0 @@ -//======================================================================== -// -// CairoFontEngine.cc -// -// Copyright 2003 Glyph & Cog, LLC -// Copyright 2004 Red Hat, Inc -// -//======================================================================== - -//======================================================================== -// -// Modified under the Poppler project - http://poppler.freedesktop.org -// -// All changes made under the Poppler project to this file are licensed -// under GPL version 2 or later -// -// Copyright (C) 2005-2007 Jeff Muizelaar <jeff@infidigm.net> -// Copyright (C) 2005, 2006 Kristian Høgsberg <krh@redhat.com> -// Copyright (C) 2005 Martin Kretzschmar <martink@gnome.org> -// Copyright (C) 2005, 2009, 2012 Albert Astals Cid <aacid@kde.org> -// Copyright (C) 2006, 2007, 2010, 2011 Carlos Garcia Campos <carlosgc@gnome.org> -// Copyright (C) 2007 Koji Otani <sho@bbr.jp> -// Copyright (C) 2008, 2009 Chris Wilson <chris@chris-wilson.co.uk> -// Copyright (C) 2008, 2012 Adrian Johnson <ajohnson@redneon.com> -// Copyright (C) 2009 Darren Kenny <darren.kenny@sun.com> -// Copyright (C) 2010 Suzuki Toshiya <mpsuzuki@hiroshima-u.ac.jp> -// Copyright (C) 2010 Jan Kümmel <jan+freedesktop@snorc.org> -// Copyright (C) 2012 Hib Eris <hib@hiberis.nl> -// -// To see a description of the changes please see the Changelog file that -// came with your tarball or type make ChangeLog if you are building from git -// -//======================================================================== - -#include <config.h> - -#include "config.h" -#include <string.h> -#include "CairoFontEngine.h" -#include "CairoOutputDev.h" -#include "GlobalParams.h" -#include <fofi/FoFiTrueType.h> -#include <fofi/FoFiType1C.h> -#include "goo/gfile.h" -#include "Error.h" -#include "XRef.h" -#include "Gfx.h" -#include "Page.h" - -#if HAVE_FCNTL_H && HAVE_SYS_MMAN_H && HAVE_SYS_STAT_H -#include <fcntl.h> -#include <sys/stat.h> -#include <sys/mman.h> -#define CAN_CHECK_OPEN_FACES 1 -#endif - -#ifdef USE_GCC_PRAGMAS -#pragma implementation -#endif - - -//------------------------------------------------------------------------ -// CairoFont -//------------------------------------------------------------------------ - -CairoFont::CairoFont(Ref ref, - cairo_font_face_t *cairo_font_face, - int *codeToGID, - Guint codeToGIDLen, - GBool substitute, - GBool printing) : ref(ref), - cairo_font_face(cairo_font_face), - codeToGID(codeToGID), - codeToGIDLen(codeToGIDLen), - substitute(substitute), - printing(printing) { } - -CairoFont::~CairoFont() { - cairo_font_face_destroy (cairo_font_face); - gfree(codeToGID); -} - -GBool -CairoFont::matches(Ref &other, GBool printingA) { - return (other.num == ref.num && other.gen == ref.gen); -} - -cairo_font_face_t * -CairoFont::getFontFace(void) { - return cairo_font_face; -} - -unsigned long -CairoFont::getGlyph(CharCode code, - Unicode *u, int uLen) { - FT_UInt gid; - - if (codeToGID && code < codeToGIDLen) { - gid = (FT_UInt)codeToGID[code]; - } else { - gid = (FT_UInt)code; - } - return gid; -} - -double -CairoFont::getSubstitutionCorrection(GfxFont *gfxFont) -{ - double w1, w2; - CharCode code; - char *name; - - // for substituted fonts: adjust the font matrix -- compare the - // width of 'm' in the original font and the substituted font - if (isSubstitute() && !gfxFont->isCIDFont()) { - for (code = 0; code < 256; ++code) { - if ((name = ((Gfx8BitFont *)gfxFont)->getCharName(code)) && - name[0] == 'm' && name[1] == '\0') { - break; - } - } - if (code < 256) { - w1 = ((Gfx8BitFont *)gfxFont)->getWidth(code); - { - cairo_matrix_t m; - cairo_matrix_init_identity(&m); - cairo_font_options_t *options = cairo_font_options_create(); - cairo_font_options_set_hint_style(options, CAIRO_HINT_STYLE_NONE); - cairo_font_options_set_hint_metrics(options, CAIRO_HINT_METRICS_OFF); - cairo_scaled_font_t *scaled_font = cairo_scaled_font_create(cairo_font_face, &m, &m, options); - - cairo_text_extents_t extents; - cairo_scaled_font_text_extents(scaled_font, "m", &extents); - - cairo_scaled_font_destroy(scaled_font); - cairo_font_options_destroy(options); - w2 = extents.x_advance; - } - if (!gfxFont->isSymbolic()) { - // if real font is substantially narrower than substituted - // font, reduce the font size accordingly - if (w1 > 0.01 && w1 < 0.9 * w2) { - w1 /= w2; - return w1; - } - } - } - } - return 1.0; -} - -//------------------------------------------------------------------------ -// CairoFreeTypeFont -//------------------------------------------------------------------------ - -static cairo_user_data_key_t _ft_cairo_key; - -static void -_ft_done_face_uncached (void *closure) -{ - FT_Face face = (FT_Face) closure; - FT_Done_Face (face); -} - -static GBool -_ft_new_face_uncached (FT_Library lib, - const char *filename, - char *font_data, - int font_data_len, - FT_Face *face_out, - cairo_font_face_t **font_face_out) -{ - FT_Face face; - cairo_font_face_t *font_face; - - if (font_data == NULL) { - if (FT_New_Face (lib, filename, 0, &face)) - return gFalse; - } else { - if (FT_New_Memory_Face (lib, (unsigned char *)font_data, font_data_len, 0, &face)) - return gFalse; - } - - font_face = cairo_ft_font_face_create_for_ft_face (face, - FT_LOAD_NO_HINTING | - FT_LOAD_NO_BITMAP); - if (cairo_font_face_set_user_data (font_face, - &_ft_cairo_key, - face, - _ft_done_face_uncached)) - { - _ft_done_face_uncached (face); - cairo_font_face_destroy (font_face); - return gFalse; - } - - *face_out = face; - *font_face_out = font_face; - return gTrue; -} - -#if CAN_CHECK_OPEN_FACES -static struct _ft_face_data { - struct _ft_face_data *prev, *next, **head; - - int fd; - unsigned long hash; - size_t size; - unsigned char *bytes; - - FT_Library lib; - FT_Face face; - cairo_font_face_t *font_face; -} *_ft_open_faces; - -static unsigned long -_djb_hash (const unsigned char *bytes, size_t len) -{ - unsigned long hash = 5381; - while (len--) { - unsigned char c = *bytes++; - hash *= 33; - hash ^= c; - } - return hash; -} - -static GBool -_ft_face_data_equal (struct _ft_face_data *a, struct _ft_face_data *b) -{ - if (a->lib != b->lib) - return gFalse; - if (a->size != b->size) - return gFalse; - if (a->hash != b->hash) - return gFalse; - - return memcmp (a->bytes, b->bytes, a->size) == 0; -} - -static void -_ft_done_face (void *closure) -{ - struct _ft_face_data *data = (struct _ft_face_data *) closure; - - if (data->next) - data->next->prev = data->prev; - if (data->prev) - data->prev->next = data->next; - else - _ft_open_faces = data->next; - -#if defined(__SUNPRO_CC) && defined(__sun) && defined(__SVR4) - munmap ((char*)data->bytes, data->size); -#else - munmap (data->bytes, data->size); -#endif - close (data->fd); - - FT_Done_Face (data->face); - gfree (data); -} - -static GBool -_ft_new_face (FT_Library lib, - const char *filename, - char *font_data, - int font_data_len, - FT_Face *face_out, - cairo_font_face_t **font_face_out) -{ - struct _ft_face_data *l; - struct stat st; - struct _ft_face_data tmpl; - - tmpl.fd = -1; - - if (font_data == NULL) { - /* if we fail to mmap the file, just pass it to FreeType instead */ - tmpl.fd = open (filename, O_RDONLY); - if (tmpl.fd == -1) - return _ft_new_face_uncached (lib, filename, font_data, font_data_len, face_out, font_face_out); - - if (fstat (tmpl.fd, &st) == -1) { - close (tmpl.fd); - return _ft_new_face_uncached (lib, filename, font_data, font_data_len, face_out, font_face_out); - } - - tmpl.bytes = (unsigned char *) mmap (NULL, st.st_size, - PROT_READ, MAP_PRIVATE, - tmpl.fd, 0); - if (tmpl.bytes == MAP_FAILED) { - close (tmpl.fd); - return _ft_new_face_uncached (lib, filename, font_data, font_data_len, face_out, font_face_out); - } - tmpl.size = st.st_size; - } else { - tmpl.bytes = (unsigned char*) font_data; - tmpl.size = font_data_len; - } - - /* check to see if this is a duplicate of any of the currently open fonts */ - tmpl.lib = lib; - tmpl.hash = _djb_hash (tmpl.bytes, tmpl.size); - - for (l = _ft_open_faces; l; l = l->next) { - if (_ft_face_data_equal (l, &tmpl)) { - if (tmpl.fd != -1) { -#if defined(__SUNPRO_CC) && defined(__sun) && defined(__SVR4) - munmap ((char*)tmpl.bytes, tmpl.size); -#else - munmap (tmpl.bytes, tmpl.size); -#endif - close (tmpl.fd); - } - *face_out = l->face; - *font_face_out = cairo_font_face_reference (l->font_face); - return gTrue; - } - } - - /* not a dup, open and insert into list */ - if (FT_New_Memory_Face (lib, - (FT_Byte *) tmpl.bytes, tmpl.size, - 0, &tmpl.face)) - { - if (tmpl.fd != -1) { -#if defined(__SUNPRO_CC) && defined(__sun) && defined(__SVR4) - munmap ((char*)tmpl.bytes, tmpl.size); -#else - munmap (tmpl.bytes, tmpl.size); -#endif - - close (tmpl.fd); - } - return gFalse; - } - - l = (struct _ft_face_data *) gmallocn (1, sizeof (struct _ft_face_data)); - *l = tmpl; - l->prev = NULL; - l->next = _ft_open_faces; - if (_ft_open_faces) - _ft_open_faces->prev = l; - _ft_open_faces = l; - - l->font_face = cairo_ft_font_face_create_for_ft_face (tmpl.face, - FT_LOAD_NO_HINTING | - FT_LOAD_NO_BITMAP); - if (cairo_font_face_set_user_data (l->font_face, - &_ft_cairo_key, - l, - _ft_done_face)) - { - cairo_font_face_destroy (l->font_face); - _ft_done_face (l); - return gFalse; - } - - *face_out = l->face; - *font_face_out = l->font_face; - return gTrue; -} -#else -#define _ft_new_face _ft_new_face_uncached -#endif - -CairoFreeTypeFont::CairoFreeTypeFont(Ref ref, - cairo_font_face_t *cairo_font_face, - int *codeToGID, - Guint codeToGIDLen, - GBool substitute) : CairoFont(ref, - cairo_font_face, - codeToGID, - codeToGIDLen, - substitute, - gTrue) { } - -CairoFreeTypeFont::~CairoFreeTypeFont() { } - -CairoFreeTypeFont *CairoFreeTypeFont::create(GfxFont *gfxFont, XRef *xref, - FT_Library lib, GBool useCIDs) { - Object refObj, strObj; - GooString *fileName; - char *fileNameC; - char *font_data; - int font_data_len; - int i, n; - GfxFontType fontType; - GfxFontLoc *fontLoc; - char **enc; - char *name; - FoFiTrueType *ff; - FoFiType1C *ff1c; - Ref ref; - FT_Face face; - cairo_font_face_t *font_face; - - int *codeToGID; - Guint codeToGIDLen; - - codeToGID = NULL; - codeToGIDLen = 0; - font_data = NULL; - font_data_len = 0; - fileName = NULL; - fileNameC = NULL; - - GBool substitute = gFalse; - - ref = *gfxFont->getID(); - fontType = gfxFont->getType(); - - if (!(fontLoc = gfxFont->locateFont(xref, gFalse))) { - error(errSyntaxError, -1, "Couldn't find a font for '{0:s}'", - gfxFont->getName() ? gfxFont->getName()->getCString() - : "(unnamed)"); - goto err2; - } - - // embedded font - if (fontLoc->locType == gfxFontLocEmbedded) { - font_data = gfxFont->readEmbFontFile(xref, &font_data_len); - if (NULL == font_data) - goto err2; - - // external font - } else { // gfxFontLocExternal - fileName = fontLoc->path; - fontType = fontLoc->fontType; - substitute = gTrue; - } - - if (fileName != NULL) { - fileNameC = fileName->getCString(); - } - - switch (fontType) { - case fontType1: - case fontType1C: - case fontType1COT: - if (! _ft_new_face (lib, fileNameC, font_data, font_data_len, &face, &font_face)) { - error(errSyntaxError, -1, "could not create type1 face"); - goto err2; - } - - enc = ((Gfx8BitFont *)gfxFont)->getEncoding(); - - codeToGID = (int *)gmallocn(256, sizeof(int)); - codeToGIDLen = 256; - for (i = 0; i < 256; ++i) { - codeToGID[i] = 0; - if ((name = enc[i])) { - codeToGID[i] = FT_Get_Name_Index(face, name); - } - } - break; - case fontCIDType2: - case fontCIDType2OT: - codeToGID = NULL; - n = 0; - if (((GfxCIDFont *)gfxFont)->getCIDToGID()) { - n = ((GfxCIDFont *)gfxFont)->getCIDToGIDLen(); - if (n) { - codeToGID = (int *)gmallocn(n, sizeof(int)); - memcpy(codeToGID, ((GfxCIDFont *)gfxFont)->getCIDToGID(), - n * sizeof(int)); - } - } else { - if (font_data != NULL) { - ff = FoFiTrueType::make(font_data, font_data_len); - } else { - ff = FoFiTrueType::load(fileNameC); - } - if (! ff) - goto err2; - codeToGID = ((GfxCIDFont *)gfxFont)->getCodeToGIDMap(ff, &n); - delete ff; - } - codeToGIDLen = n; - /* Fall through */ - case fontTrueType: - if (font_data != NULL) { - ff = FoFiTrueType::make(font_data, font_data_len); - } else { - ff = FoFiTrueType::load(fileNameC); - } - if (! ff) { - error(errSyntaxError, -1, "failed to load truetype font\n"); - goto err2; - } - /* This might be set already for the CIDType2 case */ - if (fontType == fontTrueType) { - codeToGID = ((Gfx8BitFont *)gfxFont)->getCodeToGIDMap(ff); - codeToGIDLen = 256; - } - delete ff; - if (! _ft_new_face (lib, fileNameC, font_data, font_data_len, &face, &font_face)) { - error(errSyntaxError, -1, "could not create truetype face\n"); - goto err2; - } - break; - - case fontCIDType0: - case fontCIDType0C: - - codeToGID = NULL; - codeToGIDLen = 0; - - if (!useCIDs) - { - if (font_data != NULL) { - ff1c = FoFiType1C::make(font_data, font_data_len); - } else { - ff1c = FoFiType1C::load(fileNameC); - } - if (ff1c) { - codeToGID = ff1c->getCIDToGIDMap((int *)&codeToGIDLen); - delete ff1c; - } - } - - if (! _ft_new_face (lib, fileNameC, font_data, font_data_len, &face, &font_face)) { - gfree(codeToGID); - codeToGID = NULL; - error(errSyntaxError, -1, "could not create cid face\n"); - goto err2; - } - break; - - default: - fprintf (stderr, "font type %d not handled\n", (int)fontType); - goto err2; - break; - } - - delete fontLoc; - return new CairoFreeTypeFont(ref, - font_face, - codeToGID, codeToGIDLen, - substitute); - - err2: - /* hmm? */ - delete fontLoc; - fprintf (stderr, "some font thing failed\n"); - return NULL; -} - -//------------------------------------------------------------------------ -// CairoType3Font -//------------------------------------------------------------------------ - -static const cairo_user_data_key_t type3_font_key = {0}; - -typedef struct _type3_font_info { - GfxFont *font; - PDFDoc *doc; - CairoFontEngine *fontEngine; - GBool printing; -} type3_font_info_t; - -static void -_free_type3_font_info(void *closure) -{ - type3_font_info_t *info = (type3_font_info_t *) closure; - - info->font->decRefCnt(); - free (info); -} - -static cairo_status_t -_init_type3_glyph (cairo_scaled_font_t *scaled_font, - cairo_t *cr, - cairo_font_extents_t *extents) -{ - type3_font_info_t *info; - GfxFont *font; - double *mat; - - info = (type3_font_info_t *) - cairo_font_face_get_user_data (cairo_scaled_font_get_font_face (scaled_font), - &type3_font_key); - font = info->font; - mat = font->getFontBBox(); - extents->ascent = mat[3]; /* y2 */ - extents->descent = -mat[3]; /* -y1 */ - extents->height = extents->ascent + extents->descent; - extents->max_x_advance = mat[2] - mat[1]; /* x2 - x1 */ - extents->max_y_advance = 0; - - return CAIRO_STATUS_SUCCESS; -} - -static cairo_status_t -_render_type3_glyph (cairo_scaled_font_t *scaled_font, - unsigned long glyph, - cairo_t *cr, - cairo_text_extents_t *metrics) -{ - Dict *charProcs; - Object charProc; - CairoOutputDev *output_dev; - cairo_matrix_t matrix, invert_y_axis; - double *mat; - double wx, wy; - PDFRectangle box; - type3_font_info_t *info; - GfxFont *font; - Dict *resDict; - Gfx *gfx; - - info = (type3_font_info_t *) - cairo_font_face_get_user_data (cairo_scaled_font_get_font_face (scaled_font), - &type3_font_key); - - font = info->font; - resDict = ((Gfx8BitFont *)font)->getResources(); - charProcs = ((Gfx8BitFont *)(info->font))->getCharProcs(); - if (!charProcs) - return CAIRO_STATUS_USER_FONT_ERROR; - - if ((int)glyph >= charProcs->getLength()) - return CAIRO_STATUS_USER_FONT_ERROR; - - mat = font->getFontMatrix(); - matrix.xx = mat[0]; - matrix.yx = mat[1]; - matrix.xy = mat[2]; - matrix.yy = mat[3]; - matrix.x0 = mat[4]; - matrix.y0 = mat[5]; - cairo_matrix_init_scale (&invert_y_axis, 1, -1); - cairo_matrix_multiply (&matrix, &matrix, &invert_y_axis); - cairo_transform (cr, &matrix); - - output_dev = new CairoOutputDev(); - output_dev->setCairo(cr); - output_dev->setPrinting(info->printing); - - mat = font->getFontBBox(); - box.x1 = mat[0]; - box.y1 = mat[1]; - box.x2 = mat[2]; - box.y2 = mat[3]; - gfx = new Gfx(info->doc, output_dev, resDict, &box, NULL); - output_dev->startDoc(info->doc, info->fontEngine); - output_dev->startPage (1, gfx->getState()); - output_dev->setInType3Char(gTrue); - gfx->display(charProcs->getVal(glyph, &charProc)); - - output_dev->getType3GlyphWidth (&wx, &wy); - cairo_matrix_transform_distance (&matrix, &wx, &wy); - metrics->x_advance = wx; - metrics->y_advance = wy; - if (output_dev->hasType3GlyphBBox()) { - double *bbox = output_dev->getType3GlyphBBox(); - - cairo_matrix_transform_point (&matrix, &bbox[0], &bbox[1]); - cairo_matrix_transform_point (&matrix, &bbox[2], &bbox[3]); - metrics->x_bearing = bbox[0]; - metrics->y_bearing = bbox[1]; - metrics->width = bbox[2] - bbox[0]; - metrics->height = bbox[3] - bbox[1]; - } - - delete gfx; - delete output_dev; - charProc.free(); - - return CAIRO_STATUS_SUCCESS; -} - - -CairoType3Font *CairoType3Font::create(GfxFont *gfxFont, PDFDoc *doc, - CairoFontEngine *fontEngine, - GBool printing) { - Object refObj, strObj; - type3_font_info_t *info; - cairo_font_face_t *font_face; - Ref ref; - int *codeToGID; - Guint codeToGIDLen; - int i, j; - char **enc; - Dict *charProcs; - char *name; - - charProcs = ((Gfx8BitFont *)gfxFont)->getCharProcs(); - info = (type3_font_info_t *) malloc(sizeof(*info)); - ref = *gfxFont->getID(); - font_face = cairo_user_font_face_create(); - cairo_user_font_face_set_init_func (font_face, _init_type3_glyph); - cairo_user_font_face_set_render_glyph_func (font_face, _render_type3_glyph); - gfxFont->incRefCnt(); - info->font = gfxFont; - info->doc = doc; - info->fontEngine = fontEngine; - info->printing = printing; - - cairo_font_face_set_user_data (font_face, &type3_font_key, (void *) info, _free_type3_font_info); - - enc = ((Gfx8BitFont *)gfxFont)->getEncoding(); - codeToGID = (int *)gmallocn(256, sizeof(int)); - codeToGIDLen = 256; - for (i = 0; i < 256; ++i) { - codeToGID[i] = 0; - if (charProcs && (name = enc[i])) { - for (j = 0; j < charProcs->getLength(); j++) { - if (strcmp(name, charProcs->getKey(j)) == 0) { - codeToGID[i] = j; - } - } - } - } - - return new CairoType3Font(ref, doc, font_face, codeToGID, codeToGIDLen, printing); -} - -CairoType3Font::CairoType3Font(Ref ref, - PDFDoc *doc, - cairo_font_face_t *cairo_font_face, - int *codeToGID, - Guint codeToGIDLen, - GBool printing) : CairoFont(ref, - cairo_font_face, - codeToGID, - codeToGIDLen, - gFalse, - printing), - doc(doc) { } - -CairoType3Font::~CairoType3Font() { } - -GBool -CairoType3Font::matches(Ref &other, GBool printingA) { - return (other.num == ref.num && other.gen == ref.gen && printing == printingA); -} - - -//------------------------------------------------------------------------ -// CairoFontEngine -//------------------------------------------------------------------------ - -CairoFontEngine::CairoFontEngine(FT_Library libA) { - int i; - - lib = libA; - for (i = 0; i < cairoFontCacheSize; ++i) { - fontCache[i] = NULL; - } - - FT_Int major, minor, patch; - // as of FT 2.1.8, CID fonts are indexed by CID instead of GID - FT_Library_Version(lib, &major, &minor, &patch); - useCIDs = major > 2 || - (major == 2 && (minor > 1 || (minor == 1 && patch > 7))); -} - -CairoFontEngine::~CairoFontEngine() { - int i; - - for (i = 0; i < cairoFontCacheSize; ++i) { - if (fontCache[i]) - delete fontCache[i]; - } -} - -CairoFont * -CairoFontEngine::getFont(GfxFont *gfxFont, PDFDoc *doc, GBool printing) { - int i, j; - Ref ref; - CairoFont *font; - GfxFontType fontType; - - ref = *gfxFont->getID(); - - for (i = 0; i < cairoFontCacheSize; ++i) { - font = fontCache[i]; - if (font && font->matches(ref, printing)) { - for (j = i; j > 0; --j) { - fontCache[j] = fontCache[j-1]; - } - fontCache[0] = font; - return font; - } - } - - fontType = gfxFont->getType(); - if (fontType == fontType3) - font = CairoType3Font::create (gfxFont, doc, this, printing); - else - font = CairoFreeTypeFont::create (gfxFont, doc->getXRef(), lib, useCIDs); - - //XXX: if font is null should we still insert it into the cache? - if (fontCache[cairoFontCacheSize - 1]) { - delete fontCache[cairoFontCacheSize - 1]; - } - for (j = cairoFontCacheSize - 1; j > 0; --j) { - fontCache[j] = fontCache[j-1]; - } - fontCache[0] = font; - return font; -} |