/*==LICENSE==* CyanWorlds.com Engine - MMOG client, server and tools Copyright (C) 2011 Cyan Worlds, Inc. This program 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 3 of the License, or (at your option) any later version. This program 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 this program. If not, see . Additional permissions under GNU GPL version 3 section 7 If you modify this Program, or any covered work, by linking or combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK, NVIDIA PhysX SDK, Microsoft DirectX SDK, OpenSSL library, Independent JPEG Group JPEG library, Microsoft Windows Media SDK, or Apple QuickTime SDK (or a modified version of those libraries), containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA, PhysX SDK EULA, DirectX SDK EULA, OpenSSL and SSLeay licenses, IJG JPEG Library README, Windows Media SDK EULA, or QuickTime SDK EULA, the licensors of this Program grant you additional permission to convey the resulting work. Corresponding Source for a non-source form of such a combination shall include the source code for the parts of OpenSSL and IJG JPEG Library used as well as that of the covered work. You can contact Cyan Worlds, Inc. by email legal@cyan.com or by snail mail at: Cyan Worlds, Inc. 14617 N Newport Hwy Mead, WA 99021 *==LICENSE==*/ /////////////////////////////////////////////////////////////////////////////// // // // plFontFreeType Functions // // Basically our cheat to allow importing fonts via FreeType2 into our // // plFont system without having to make plFont.cpp reliant on FreeType2. // // // /////////////////////////////////////////////////////////////////////////////// #include "plFontFreeType.h" #include "ft2build.h" #include FT_FREETYPE_H #include FT_GLYPH_H #include FT_TYPES_H #define kMaxGlyphs 65536 hsBool plFontFreeType::ImportFreeType( const char *fontPath, Options *options, plBDFConvertCallback *callback ) { FT_Library ftLibrary; IClear(); // Init FreeType2 FT_Error error = FT_Init_FreeType( &ftLibrary ); if( error ) { return false; } try { // Load our font that we're converting FT_Face ftFace; error = FT_New_Face( ftLibrary, fontPath, 0, &ftFace ); if( error == FT_Err_Unknown_File_Format ) { // Unsupported inport format throw false; } else if( error ) { // Some other error throw false; } // Set our point size to convert to error = FT_Set_Char_Size( ftFace, 0, options->fSize * 64, options->fScreenRes, options->fScreenRes ); // Size is in 1/64ths of a point if( error ) { throw false; } // Run through our glyphs, loading them into a temp array and calcing bounding boxes for them FT_GlyphSlot ftSlot = ftFace->glyph; FT_ULong ftChar; FT_UInt ftIndex; UInt32 numGlyphs = 0, totalHeight = 0, maxChar = 0, i; FT_Glyph ftGlyphs[ kMaxGlyphs ]; UInt16 glyphChars[ kMaxGlyphs ]; FT_Vector ftAdvances[ kMaxGlyphs ]; FT_BBox ftGlyphBox, ftFontBox; FT_UInt previous = 0; hsBool useKerning = false; if( options->fUseKerning ) useKerning = FT_HAS_KERNING( ftFace ); ftFontBox.xMin = ftFontBox.yMin = 32000; ftFontBox.xMax = ftFontBox.yMax = -32000; // Hack for now: if we don't have a charmap active already, just choose the first one if( ftFace->charmap == nil ) { if( ftFace->num_charmaps == 0 ) throw false; FT_Set_Charmap( ftFace, ftFace->charmaps[ 0 ] ); } ftChar = FT_Get_First_Char( ftFace, &ftIndex ); while( ftIndex != 0 && numGlyphs < kMaxGlyphs ) { error = FT_Load_Glyph( ftFace, ftIndex, FT_LOAD_DEFAULT ); if( !error && ftChar <= options->fMaxCharLimit ) { // Got this glyph, store it and update our bounding box error = FT_Get_Glyph( ftFace->glyph, &ftGlyphs[ numGlyphs ] ); if( error ) throw false; // Don't know why this isn't valid per actual glyph... ftAdvances[ numGlyphs ] = ftSlot->advance; FT_Glyph_Get_CBox( ftGlyphs[ numGlyphs ], ft_glyph_bbox_pixels, &ftGlyphBox ); if( ftGlyphBox.xMin < ftFontBox.xMin ) ftFontBox.xMin = ftGlyphBox.xMin; if( ftGlyphBox.yMin < ftFontBox.yMin ) ftFontBox.yMin = ftGlyphBox.yMin; if( ftGlyphBox.xMax > ftFontBox.xMax ) ftFontBox.xMax = ftGlyphBox.xMax; if( ftGlyphBox.yMax > ftFontBox.yMax ) ftFontBox.yMax = ftGlyphBox.yMax; totalHeight += ftGlyphBox.yMax - ftGlyphBox.yMin + 1; if( maxChar < ftChar ) maxChar = ftChar; glyphChars[ numGlyphs ] = (UInt16)ftChar; numGlyphs++; } ftChar = FT_Get_Next_Char( ftFace, ftChar, &ftIndex ); } // Init some of our font properties fBPP = options->fBitDepth; fWidth = ( ftFontBox.xMax - ftFontBox.xMin + 1 ); if( fBPP == 1 ) fWidth = ( ( fWidth + 7 ) >> 3 ) << 3; fHeight = totalHeight; fBMapData = new UInt8[ ( fWidth * fHeight * fBPP ) >> 3 ]; memset( fBMapData, 0, ( fWidth * fHeight * fBPP ) >> 3 ); // Set the name and size of our font fSize = options->fSize; char str[ 512 ]; if( ftFace->style_flags & FT_STYLE_FLAG_ITALIC ) SetFlag( kFlagItalic, true ); if( ftFace->style_flags & FT_STYLE_FLAG_BOLD ) SetFlag( kFlagBold, true ); if( IsFlagSet( kFlagItalic | kFlagBold ) ) sprintf( str, "%s %s", ftFace->family_name, ftFace->style_name ); else strcpy( str, ftFace->family_name ); SetFace( str ); // # of bytes per row UInt32 stride = ( fBPP == 1 ) ? ( fWidth >> 3 ) : fWidth; // Pre-expand our char list fCharacters.ExpandAndZero( maxChar + 1 ); fCharacters.SetCount( 0 ); if( callback != nil ) callback->NumChars( (UInt16)(maxChar + 1) ); // Now re-run through our stored list of glyphs, converting them to bitmaps for( i = 0; i < numGlyphs; i++ ) { if( ftGlyphs[ i ]->format != ft_glyph_format_bitmap ) { FT_Vector origin; origin.x = 32; // Half a pixel over origin.y = 0; error = FT_Glyph_To_Bitmap( &ftGlyphs[ i ], ( fBPP == 1 ) ? ft_render_mode_mono : ft_render_mode_normal, &origin, 0 ); if( error ) throw false; } if( fCharacters.GetCount() < glyphChars[ i ] + 1 ) fCharacters.SetCount( glyphChars[ i ] + 1 ); FT_BitmapGlyph ftBitmap = (FT_BitmapGlyph)ftGlyphs[ i ]; plCharacter *ch = &fCharacters[ glyphChars[ i ] ]; UInt8 *ourBitmap = IGetFreeCharData( ch->fBitmapOff ); if( ourBitmap == nil ) throw false; if( ch->fBitmapOff > ( ( fWidth * ( fHeight - ftBitmap->bitmap.rows ) * fBPP ) >> 3 ) ) { hsAssert( false, "Invalid position found in IGetFreeCharData()" ); return nil; } // Set these now, since setting them before would've changed the IGetFreeCharData results ch->fLeftKern = (hsScalar)ftBitmap->left; ch->fRightKern = (hsScalar)ftAdvances[ i ].x / 64.f - (hsScalar)fWidth - ch->fLeftKern;//ftBitmap->bitmap.width; ch->fBaseline = ftBitmap->top; ch->fHeight = ftBitmap->bitmap.rows; // Copy data straight through to our bitmap int y; UInt8 *srcData = (UInt8 *)ftBitmap->bitmap.buffer; UInt32 bytesWide = ( fBPP == 1 ) ? ( ( ftBitmap->bitmap.width + 7 ) >> 3 ) : ftBitmap->bitmap.width; for( y = 0; y < ch->fHeight; y++ ) { memcpy( ourBitmap, srcData, bytesWide ); srcData += ftBitmap->bitmap.pitch; ourBitmap += stride; } FT_Done_Glyph( ftGlyphs[ i ] ); if( callback != nil ) callback->CharDone(); } } catch( ... ) { // Shut down FreeType2 FT_Done_FreeType( ftLibrary ); return false; } ICalcFontAscent(); // Shut down FreeType2 FT_Done_FreeType( ftLibrary ); return true; }