1 /* 2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 #ifndef FontScalerDefsIncludesDefined 27 #define FontScalerDefsIncludesDefined 28 29 #include "AccelGlyphCache.h" 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 #define kPosInfinity16 (32767) 36 #define kNegInfinity16 (-32768) 37 38 #define kPosInfinity32 (0x7fffffff) 39 #define kNegInfinity32 (0x80000000) 40 41 42 #ifdef _LP64 43 typedef unsigned int UInt32; 44 typedef int Int32; 45 #else 46 typedef unsigned long UInt32; 47 typedef long Int32; 48 #endif 49 typedef unsigned short UInt16; 50 typedef short Int16; 51 typedef unsigned char UInt8; 52 53 typedef UInt8 Byte; 54 typedef Int32 hsFixed; 55 typedef Int32 hsFract; 56 typedef UInt32 Bool32; 57 58 #ifndef false 59 #define false 0 60 #endif 61 62 #ifndef true 63 #define true 1 64 #endif 65 66 #define kPosInfinity32 (0x7fffffff) 67 #define kNegInfinity32 (0x80000000) 68 69 #define F26Dot6ToFixed(n) ((n) << 10) 70 #define F26Dot6ToScalar(n) (((t2kScalar)(n)) / (t2kScalar)64) 71 72 /* t2kFixed is the same as F16Dot16 format although T2K also uses 26.6 */ 73 typedef Int32 t2kFixed; 74 typedef float t2kScalar; 75 76 #define t2kIntToFixed(x) ((t2kFixed)(x) << 16) 77 #define t2kFixedToInt(x) ((x) >> 16) 78 79 #define t2kFixedRound(x) (((x) + 0x8000) >> 16) 80 #define t2kFixed1 t2kIntToFixed(1) 81 82 #define t2kFloatToFixed(f) (t2kFixed)((f) * (float)(t2kFixed1)) 83 #define t2kFixedToFloat(x) ((x) / (float)(65536)) 84 85 #define t2kScalarAverage(a, b) (((a) + (b)) / (t2kScalar)(2)) 86 87 /* managed: 1 means the glyph has a hardware cached 88 * copy, and its freeing is managed by the the usual 89 * 2D disposer code. 90 * A value of 0 means its either unaccelerated (and so has no cellInfos) 91 * or we want to free this in a different way. 92 * The field uses previously unused padding, so doesn't enlarge 93 * the structure. 94 */ 95 #define UNMANAGED_GLYPH 0 96 #define MANAGED_GLYPH 1 97 typedef struct GlyphInfo { 98 float advanceX; 99 float advanceY; 100 UInt16 width; 101 UInt16 height; 102 UInt16 rowBytes; 103 UInt8 managed; 104 float topLeftX; 105 float topLeftY; 106 void *cellInfo; 107 UInt8 *image; 108 } GlyphInfo; 109 110 /* We use fffe and ffff as meaning invisible glyphs which have no 111 * image, or advance and an empty outline. 112 * Since there are no valid glyphs with this great a value (watch out for 113 * large fonts in the future!) we can safely use check for >= this value 114 */ 115 #define INVISIBLE_GLYPHS 0xfffe 116 117 #define GSUB_TAG 0x47535542 /* 'GSUB' */ 118 #define GPOS_TAG 0x47504F53 /* 'GPOS' */ 119 #define GDEF_TAG 0x47444546 /* 'GDEF' */ 120 #define MORT_TAG 0x6D6F7274 /* 'mort' */ 121 #define KERN_TAG 0x6B65726E /* 'kern' */ 122 123 typedef struct TTLayoutTableCache { 124 void* gsub; 125 void* gpos; 126 void* gdef; 127 void* mort; 128 void* kern; 129 void* kernPairs; 130 int gsub_len; 131 int gpos_len; 132 int gdef_len; 133 int mort_len; 134 int kern_len; 135 } TTLayoutTableCache; 136 137 #include "sunfontids.h" 138 139 JNIEXPORT extern TTLayoutTableCache* newLayoutTableCache(); 140 JNIEXPORT extern void freeLayoutTableCache(TTLayoutTableCache* ltc); 141 142 /* If font is malformed then scaler context created by particular scaler 143 * will be replaced by null scaler context. 144 * Note that this context is not compatible with structure of the context 145 * object used by particular scaler. Therefore, before using context 146 * scaler has to check if it is NullContext. 147 * 148 * Note that in theory request with NullContext should not even reach native 149 * scaler. 150 * 151 * It seems that the only reason to support NullContext is to simplify 152 * FileFontStrike logic - presence of context is used as marker to 153 * free the memory. 154 */ 155 JNIEXPORT int isNullScalerContext(void *context); 156 157 #ifdef __cplusplus 158 } 159 #endif 160 161 #endif