vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 1 | /* |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 2 | * Copyright 2011 Google Inc. |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 3 | * |
epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 6 | */ |
| 7 | |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 8 | #include <ctype.h> |
| 9 | |
reed@google.com | 8a85d0c | 2011-06-24 19:12:12 +0000 | [diff] [blame] | 10 | #include "SkData.h" |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 11 | #include "SkFontHost.h" |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 12 | #include "SkGlyphCache.h" |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 13 | #include "SkPaint.h" |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 14 | #include "SkPDFCatalog.h" |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 15 | #include "SkPDFDevice.h" |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 16 | #include "SkPDFFont.h" |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 17 | #include "SkPDFFontImpl.h" |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 18 | #include "SkPDFStream.h" |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 19 | #include "SkPDFTypes.h" |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 20 | #include "SkPDFUtils.h" |
vandebo@chromium.org | f77e27d | 2011-03-10 22:50:28 +0000 | [diff] [blame] | 21 | #include "SkRefCnt.h" |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 22 | #include "SkScalar.h" |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 23 | #include "SkStream.h" |
reed@google.com | fed86bd | 2013-03-14 15:04:57 +0000 | [diff] [blame] | 24 | #include "SkTypefacePriv.h" |
vandebo@chromium.org | 325cb9a | 2011-03-30 18:36:29 +0000 | [diff] [blame] | 25 | #include "SkTypes.h" |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 26 | #include "SkUtils.h" |
| 27 | |
vandebo@chromium.org | 1f16589 | 2011-07-26 02:11:41 +0000 | [diff] [blame] | 28 | #if defined (SK_SFNTLY_SUBSETTER) |
| 29 | #include SK_SFNTLY_SUBSETTER |
| 30 | #endif |
| 31 | |
vandebo@chromium.org | dcf9c19 | 2013-03-13 20:01:51 +0000 | [diff] [blame] | 32 | // PDF's notion of symbolic vs non-symbolic is related to the character set, not |
| 33 | // symbols vs. characters. Rarely is a font the right character set to call it |
| 34 | // non-symbolic, so always call it symbolic. (PDF 1.4 spec, section 5.7.1) |
| 35 | static const int kPdfSymbolic = 4; |
| 36 | |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 37 | namespace { |
| 38 | |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 39 | /////////////////////////////////////////////////////////////////////////////// |
| 40 | // File-Local Functions |
| 41 | /////////////////////////////////////////////////////////////////////////////// |
| 42 | |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 43 | bool parsePFBSection(const uint8_t** src, size_t* len, int sectionType, |
| 44 | size_t* size) { |
| 45 | // PFB sections have a two or six bytes header. 0x80 and a one byte |
| 46 | // section type followed by a four byte section length. Type one is |
| 47 | // an ASCII section (includes a length), type two is a binary section |
| 48 | // (includes a length) and type three is an EOF marker with no length. |
| 49 | const uint8_t* buf = *src; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 50 | if (*len < 2 || buf[0] != 0x80 || buf[1] != sectionType) { |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 51 | return false; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 52 | } else if (buf[1] == 3) { |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 53 | return true; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 54 | } else if (*len < 6) { |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 55 | return false; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 56 | } |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 57 | |
vandebo@chromium.org | 7332207 | 2011-06-21 21:19:41 +0000 | [diff] [blame] | 58 | *size = (size_t)buf[2] | ((size_t)buf[3] << 8) | ((size_t)buf[4] << 16) | |
| 59 | ((size_t)buf[5] << 24); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 60 | size_t consumed = *size + 6; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 61 | if (consumed > *len) { |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 62 | return false; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 63 | } |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 64 | *src = *src + consumed; |
| 65 | *len = *len - consumed; |
| 66 | return true; |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 67 | } |
| 68 | |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 69 | bool parsePFB(const uint8_t* src, size_t size, size_t* headerLen, |
| 70 | size_t* dataLen, size_t* trailerLen) { |
| 71 | const uint8_t* srcPtr = src; |
| 72 | size_t remaining = size; |
| 73 | |
| 74 | return parsePFBSection(&srcPtr, &remaining, 1, headerLen) && |
| 75 | parsePFBSection(&srcPtr, &remaining, 2, dataLen) && |
| 76 | parsePFBSection(&srcPtr, &remaining, 1, trailerLen) && |
| 77 | parsePFBSection(&srcPtr, &remaining, 3, NULL); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 78 | } |
| 79 | |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 80 | /* The sections of a PFA file are implicitly defined. The body starts |
| 81 | * after the line containing "eexec," and the trailer starts with 512 |
| 82 | * literal 0's followed by "cleartomark" (plus arbitrary white space). |
| 83 | * |
| 84 | * This function assumes that src is NUL terminated, but the NUL |
| 85 | * termination is not included in size. |
| 86 | * |
| 87 | */ |
| 88 | bool parsePFA(const char* src, size_t size, size_t* headerLen, |
| 89 | size_t* hexDataLen, size_t* dataLen, size_t* trailerLen) { |
| 90 | const char* end = src + size; |
| 91 | |
| 92 | const char* dataPos = strstr(src, "eexec"); |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 93 | if (!dataPos) { |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 94 | return false; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 95 | } |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 96 | dataPos += strlen("eexec"); |
| 97 | while ((*dataPos == '\n' || *dataPos == '\r' || *dataPos == ' ') && |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 98 | dataPos < end) { |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 99 | dataPos++; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 100 | } |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 101 | *headerLen = dataPos - src; |
| 102 | |
| 103 | const char* trailerPos = strstr(dataPos, "cleartomark"); |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 104 | if (!trailerPos) { |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 105 | return false; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 106 | } |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 107 | int zeroCount = 0; |
| 108 | for (trailerPos--; trailerPos > dataPos && zeroCount < 512; trailerPos--) { |
| 109 | if (*trailerPos == '\n' || *trailerPos == '\r' || *trailerPos == ' ') { |
| 110 | continue; |
| 111 | } else if (*trailerPos == '0') { |
| 112 | zeroCount++; |
| 113 | } else { |
| 114 | return false; |
| 115 | } |
| 116 | } |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 117 | if (zeroCount != 512) { |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 118 | return false; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 119 | } |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 120 | |
| 121 | *hexDataLen = trailerPos - src - *headerLen; |
| 122 | *trailerLen = size - *headerLen - *hexDataLen; |
| 123 | |
| 124 | // Verify that the data section is hex encoded and count the bytes. |
| 125 | int nibbles = 0; |
| 126 | for (; dataPos < trailerPos; dataPos++) { |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 127 | if (isspace(*dataPos)) { |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 128 | continue; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 129 | } |
| 130 | if (!isxdigit(*dataPos)) { |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 131 | return false; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 132 | } |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 133 | nibbles++; |
| 134 | } |
| 135 | *dataLen = (nibbles + 1) / 2; |
| 136 | |
| 137 | return true; |
| 138 | } |
| 139 | |
| 140 | int8_t hexToBin(uint8_t c) { |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 141 | if (!isxdigit(c)) { |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 142 | return -1; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 143 | } else if (c <= '9') { |
| 144 | return c - '0'; |
| 145 | } else if (c <= 'F') { |
| 146 | return c - 'A' + 10; |
| 147 | } else if (c <= 'f') { |
| 148 | return c - 'a' + 10; |
| 149 | } |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 150 | return -1; |
| 151 | } |
| 152 | |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 153 | static SkData* handle_type1_stream(SkStream* srcStream, size_t* headerLen, |
| 154 | size_t* dataLen, size_t* trailerLen) { |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 155 | // srcStream may be backed by a file or a unseekable fd, so we may not be |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 156 | // able to use skip(), rewind(), or getMemoryBase(). read()ing through |
| 157 | // the input only once is doable, but very ugly. Furthermore, it'd be nice |
| 158 | // if the data was NUL terminated so that we can use strstr() to search it. |
| 159 | // Make as few copies as possible given these constraints. |
| 160 | SkDynamicMemoryWStream dynamicStream; |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 161 | SkAutoTUnref<SkMemoryStream> staticStream; |
reed@google.com | 8a85d0c | 2011-06-24 19:12:12 +0000 | [diff] [blame] | 162 | SkData* data = NULL; |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 163 | const uint8_t* src; |
| 164 | size_t srcLen; |
| 165 | if ((srcLen = srcStream->getLength()) > 0) { |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 166 | staticStream.reset(new SkMemoryStream(srcLen + 1)); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 167 | src = (const uint8_t*)staticStream->getMemoryBase(); |
| 168 | if (srcStream->getMemoryBase() != NULL) { |
| 169 | memcpy((void *)src, srcStream->getMemoryBase(), srcLen); |
| 170 | } else { |
| 171 | size_t read = 0; |
| 172 | while (read < srcLen) { |
| 173 | size_t got = srcStream->read((void *)staticStream->getAtPos(), |
| 174 | srcLen - read); |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 175 | if (got == 0) { |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 176 | return NULL; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 177 | } |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 178 | read += got; |
| 179 | staticStream->seek(read); |
| 180 | } |
| 181 | } |
| 182 | ((uint8_t *)src)[srcLen] = 0; |
| 183 | } else { |
ctguil@chromium.org | a5c7234 | 2011-08-15 23:55:03 +0000 | [diff] [blame] | 184 | static const size_t kBufSize = 4096; |
| 185 | uint8_t buf[kBufSize]; |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 186 | size_t amount; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 187 | while ((amount = srcStream->read(buf, kBufSize)) > 0) { |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 188 | dynamicStream.write(buf, amount); |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 189 | } |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 190 | amount = 0; |
| 191 | dynamicStream.write(&amount, 1); // NULL terminator. |
reed@google.com | 8a85d0c | 2011-06-24 19:12:12 +0000 | [diff] [blame] | 192 | data = dynamicStream.copyToData(); |
| 193 | src = data->bytes(); |
| 194 | srcLen = data->size() - 1; |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 195 | } |
| 196 | |
reed@google.com | 8a85d0c | 2011-06-24 19:12:12 +0000 | [diff] [blame] | 197 | // this handles releasing the data we may have gotten from dynamicStream. |
| 198 | // if data is null, it is a no-op |
| 199 | SkAutoDataUnref aud(data); |
| 200 | |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 201 | if (parsePFB(src, srcLen, headerLen, dataLen, trailerLen)) { |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 202 | static const int kPFBSectionHeaderLength = 6; |
| 203 | const size_t length = *headerLen + *dataLen + *trailerLen; |
| 204 | SkASSERT(length > 0); |
| 205 | SkASSERT(length + (2 * kPFBSectionHeaderLength) <= srcLen); |
| 206 | |
reed | 33a3050 | 2014-09-11 08:42:36 -0700 | [diff] [blame^] | 207 | SkData* data = SkData::NewUninitialized(length); |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 208 | |
| 209 | const uint8_t* const srcHeader = src + kPFBSectionHeaderLength; |
| 210 | // There is a six-byte section header before header and data |
| 211 | // (but not trailer) that we're not going to copy. |
reed | 33a3050 | 2014-09-11 08:42:36 -0700 | [diff] [blame^] | 212 | const uint8_t* const srcData = srcHeader + *headerLen + kPFBSectionHeaderLength; |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 213 | const uint8_t* const srcTrailer = srcData + *headerLen; |
| 214 | |
reed | 33a3050 | 2014-09-11 08:42:36 -0700 | [diff] [blame^] | 215 | uint8_t* const resultHeader = (uint8_t*)data->writable_data(); |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 216 | uint8_t* const resultData = resultHeader + *headerLen; |
| 217 | uint8_t* const resultTrailer = resultData + *dataLen; |
| 218 | |
| 219 | SkASSERT(resultTrailer + *trailerLen == resultHeader + length); |
| 220 | |
| 221 | memcpy(resultHeader, srcHeader, *headerLen); |
| 222 | memcpy(resultData, srcData, *dataLen); |
| 223 | memcpy(resultTrailer, srcTrailer, *trailerLen); |
| 224 | |
reed | 33a3050 | 2014-09-11 08:42:36 -0700 | [diff] [blame^] | 225 | return data; |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 226 | } |
| 227 | |
| 228 | // A PFA has to be converted for PDF. |
| 229 | size_t hexDataLen; |
| 230 | if (parsePFA((const char*)src, srcLen, headerLen, &hexDataLen, dataLen, |
| 231 | trailerLen)) { |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 232 | const size_t length = *headerLen + *dataLen + *trailerLen; |
| 233 | SkASSERT(length > 0); |
| 234 | SkAutoTMalloc<uint8_t> buffer(length); |
| 235 | |
| 236 | memcpy(buffer.get(), src, *headerLen); |
| 237 | uint8_t* const resultData = &(buffer[*headerLen]); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 238 | |
| 239 | const uint8_t* hexData = src + *headerLen; |
| 240 | const uint8_t* trailer = hexData + hexDataLen; |
| 241 | size_t outputOffset = 0; |
vandebo@chromium.org | 5b07368 | 2011-03-08 18:33:31 +0000 | [diff] [blame] | 242 | uint8_t dataByte = 0; // To hush compiler. |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 243 | bool highNibble = true; |
| 244 | for (; hexData < trailer; hexData++) { |
commit-bot@chromium.org | 3720fda | 2013-07-10 15:03:52 +0000 | [diff] [blame] | 245 | int8_t curNibble = hexToBin(*hexData); |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 246 | if (curNibble < 0) { |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 247 | continue; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 248 | } |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 249 | if (highNibble) { |
| 250 | dataByte = curNibble << 4; |
| 251 | highNibble = false; |
| 252 | } else { |
| 253 | dataByte |= curNibble; |
| 254 | highNibble = true; |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 255 | resultData[outputOffset++] = dataByte; |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 256 | } |
| 257 | } |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 258 | if (!highNibble) { |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 259 | resultData[outputOffset++] = dataByte; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 260 | } |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 261 | SkASSERT(outputOffset == *dataLen); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 262 | |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 263 | uint8_t* const resultTrailer = &(buffer[*headerLen + outputOffset]); |
| 264 | memcpy(resultTrailer, src + *headerLen + hexDataLen, *trailerLen); |
| 265 | |
| 266 | return SkData::NewFromMalloc(buffer.detach(), length); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 267 | } |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 268 | return NULL; |
| 269 | } |
| 270 | |
reed@google.com | 3f0dcf9 | 2011-03-18 21:23:45 +0000 | [diff] [blame] | 271 | // scale from em-units to base-1000, returning as a SkScalar |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 272 | SkScalar scaleFromFontUnits(int16_t val, uint16_t emSize) { |
reed@google.com | 3f0dcf9 | 2011-03-18 21:23:45 +0000 | [diff] [blame] | 273 | SkScalar scaled = SkIntToScalar(val); |
| 274 | if (emSize == 1000) { |
| 275 | return scaled; |
| 276 | } else { |
| 277 | return SkScalarMulDiv(scaled, 1000, emSize); |
| 278 | } |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 279 | } |
| 280 | |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 281 | void setGlyphWidthAndBoundingBox(SkScalar width, SkIRect box, |
vandebo@chromium.org | cae5fba | 2011-03-28 19:03:50 +0000 | [diff] [blame] | 282 | SkWStream* content) { |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 283 | // Specify width and bounding box for the glyph. |
| 284 | SkPDFScalar::Append(width, content); |
vandebo@chromium.org | cae5fba | 2011-03-28 19:03:50 +0000 | [diff] [blame] | 285 | content->writeText(" 0 "); |
| 286 | content->writeDecAsText(box.fLeft); |
| 287 | content->writeText(" "); |
| 288 | content->writeDecAsText(box.fTop); |
| 289 | content->writeText(" "); |
| 290 | content->writeDecAsText(box.fRight); |
| 291 | content->writeText(" "); |
| 292 | content->writeDecAsText(box.fBottom); |
| 293 | content->writeText(" d1\n"); |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 294 | } |
| 295 | |
vandebo@chromium.org | 75f97e4 | 2011-04-11 23:24:18 +0000 | [diff] [blame] | 296 | SkPDFArray* makeFontBBox(SkIRect glyphBBox, uint16_t emSize) { |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 297 | SkPDFArray* bbox = new SkPDFArray; |
| 298 | bbox->reserve(4); |
reed@google.com | c789cf1 | 2011-07-20 12:14:33 +0000 | [diff] [blame] | 299 | bbox->appendScalar(scaleFromFontUnits(glyphBBox.fLeft, emSize)); |
| 300 | bbox->appendScalar(scaleFromFontUnits(glyphBBox.fBottom, emSize)); |
| 301 | bbox->appendScalar(scaleFromFontUnits(glyphBBox.fRight, emSize)); |
| 302 | bbox->appendScalar(scaleFromFontUnits(glyphBBox.fTop, emSize)); |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 303 | return bbox; |
| 304 | } |
| 305 | |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 306 | SkPDFArray* appendWidth(const int16_t& width, uint16_t emSize, |
| 307 | SkPDFArray* array) { |
reed@google.com | c789cf1 | 2011-07-20 12:14:33 +0000 | [diff] [blame] | 308 | array->appendScalar(scaleFromFontUnits(width, emSize)); |
vandebo@chromium.org | f7c1576 | 2011-02-01 22:19:44 +0000 | [diff] [blame] | 309 | return array; |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 310 | } |
| 311 | |
vandebo@chromium.org | f7c1576 | 2011-02-01 22:19:44 +0000 | [diff] [blame] | 312 | SkPDFArray* appendVerticalAdvance( |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 313 | const SkAdvancedTypefaceMetrics::VerticalMetric& advance, |
| 314 | uint16_t emSize, SkPDFArray* array) { |
| 315 | appendWidth(advance.fVerticalAdvance, emSize, array); |
| 316 | appendWidth(advance.fOriginXDisp, emSize, array); |
| 317 | appendWidth(advance.fOriginYDisp, emSize, array); |
vandebo@chromium.org | f7c1576 | 2011-02-01 22:19:44 +0000 | [diff] [blame] | 318 | return array; |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 319 | } |
| 320 | |
| 321 | template <typename Data> |
| 322 | SkPDFArray* composeAdvanceData( |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 323 | SkAdvancedTypefaceMetrics::AdvanceMetric<Data>* advanceInfo, |
| 324 | uint16_t emSize, |
| 325 | SkPDFArray* (*appendAdvance)(const Data& advance, uint16_t emSize, |
| 326 | SkPDFArray* array), |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 327 | Data* defaultAdvance) { |
| 328 | SkPDFArray* result = new SkPDFArray(); |
| 329 | for (; advanceInfo != NULL; advanceInfo = advanceInfo->fNext.get()) { |
| 330 | switch (advanceInfo->fType) { |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 331 | case SkAdvancedTypefaceMetrics::WidthRange::kDefault: { |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 332 | SkASSERT(advanceInfo->fAdvance.count() == 1); |
| 333 | *defaultAdvance = advanceInfo->fAdvance[0]; |
| 334 | break; |
| 335 | } |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 336 | case SkAdvancedTypefaceMetrics::WidthRange::kRange: { |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 337 | SkAutoTUnref<SkPDFArray> advanceArray(new SkPDFArray()); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 338 | for (int j = 0; j < advanceInfo->fAdvance.count(); j++) |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 339 | appendAdvance(advanceInfo->fAdvance[j], emSize, |
| 340 | advanceArray.get()); |
reed@google.com | c789cf1 | 2011-07-20 12:14:33 +0000 | [diff] [blame] | 341 | result->appendInt(advanceInfo->fStartId); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 342 | result->append(advanceArray.get()); |
| 343 | break; |
| 344 | } |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 345 | case SkAdvancedTypefaceMetrics::WidthRange::kRun: { |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 346 | SkASSERT(advanceInfo->fAdvance.count() == 1); |
reed@google.com | c789cf1 | 2011-07-20 12:14:33 +0000 | [diff] [blame] | 347 | result->appendInt(advanceInfo->fStartId); |
| 348 | result->appendInt(advanceInfo->fEndId); |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 349 | appendAdvance(advanceInfo->fAdvance[0], emSize, result); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 350 | break; |
| 351 | } |
| 352 | } |
| 353 | } |
| 354 | return result; |
| 355 | } |
| 356 | |
| 357 | } // namespace |
| 358 | |
edisonn@google.com | 26d2e04 | 2013-09-18 19:29:08 +0000 | [diff] [blame] | 359 | static void append_tounicode_header(SkDynamicMemoryWStream* cmap, |
| 360 | uint16_t firstGlyphID, |
| 361 | uint16_t lastGlyphID) { |
vandebo@chromium.org | 6744d49 | 2011-05-09 18:13:47 +0000 | [diff] [blame] | 362 | // 12 dict begin: 12 is an Adobe-suggested value. Shall not change. |
| 363 | // It's there to prevent old version Adobe Readers from malfunctioning. |
| 364 | const char* kHeader = |
| 365 | "/CIDInit /ProcSet findresource begin\n" |
| 366 | "12 dict begin\n" |
| 367 | "begincmap\n"; |
| 368 | cmap->writeText(kHeader); |
| 369 | |
| 370 | // The /CIDSystemInfo must be consistent to the one in |
| 371 | // SkPDFFont::populateCIDFont(). |
| 372 | // We can not pass over the system info object here because the format is |
| 373 | // different. This is not a reference object. |
| 374 | const char* kSysInfo = |
| 375 | "/CIDSystemInfo\n" |
| 376 | "<< /Registry (Adobe)\n" |
| 377 | "/Ordering (UCS)\n" |
| 378 | "/Supplement 0\n" |
| 379 | ">> def\n"; |
| 380 | cmap->writeText(kSysInfo); |
| 381 | |
| 382 | // The CMapName must be consistent to /CIDSystemInfo above. |
| 383 | // /CMapType 2 means ToUnicode. |
edisonn@google.com | 26d2e04 | 2013-09-18 19:29:08 +0000 | [diff] [blame] | 384 | // Codespace range just tells the PDF processor the valid range. |
| 385 | const char* kTypeInfoHeader = |
vandebo@chromium.org | 6744d49 | 2011-05-09 18:13:47 +0000 | [diff] [blame] | 386 | "/CMapName /Adobe-Identity-UCS def\n" |
| 387 | "/CMapType 2 def\n" |
edisonn@google.com | 26d2e04 | 2013-09-18 19:29:08 +0000 | [diff] [blame] | 388 | "1 begincodespacerange\n"; |
| 389 | cmap->writeText(kTypeInfoHeader); |
skia.committer@gmail.com | 2262c58 | 2013-09-19 07:25:55 +0000 | [diff] [blame] | 390 | |
edisonn@google.com | 26d2e04 | 2013-09-18 19:29:08 +0000 | [diff] [blame] | 391 | // e.g. "<0000> <FFFF>\n" |
| 392 | SkString range; |
| 393 | range.appendf("<%04X> <%04X>\n", firstGlyphID, lastGlyphID); |
| 394 | cmap->writeText(range.c_str()); |
skia.committer@gmail.com | 2262c58 | 2013-09-19 07:25:55 +0000 | [diff] [blame] | 395 | |
edisonn@google.com | 26d2e04 | 2013-09-18 19:29:08 +0000 | [diff] [blame] | 396 | const char* kTypeInfoFooter = "endcodespacerange\n"; |
| 397 | cmap->writeText(kTypeInfoFooter); |
vandebo@chromium.org | 6744d49 | 2011-05-09 18:13:47 +0000 | [diff] [blame] | 398 | } |
| 399 | |
vandebo@chromium.org | 6744d49 | 2011-05-09 18:13:47 +0000 | [diff] [blame] | 400 | static void append_cmap_footer(SkDynamicMemoryWStream* cmap) { |
| 401 | const char* kFooter = |
| 402 | "endcmap\n" |
| 403 | "CMapName currentdict /CMap defineresource pop\n" |
| 404 | "end\n" |
| 405 | "end"; |
| 406 | cmap->writeText(kFooter); |
| 407 | } |
| 408 | |
vandebo@chromium.org | 04c643b | 2011-08-08 22:33:05 +0000 | [diff] [blame] | 409 | struct BFChar { |
| 410 | uint16_t fGlyphId; |
| 411 | SkUnichar fUnicode; |
| 412 | }; |
vandebo@chromium.org | 6744d49 | 2011-05-09 18:13:47 +0000 | [diff] [blame] | 413 | |
vandebo@chromium.org | 04c643b | 2011-08-08 22:33:05 +0000 | [diff] [blame] | 414 | struct BFRange { |
| 415 | uint16_t fStart; |
| 416 | uint16_t fEnd; |
| 417 | SkUnichar fUnicode; |
| 418 | }; |
| 419 | |
| 420 | static void append_bfchar_section(const SkTDArray<BFChar>& bfchar, |
| 421 | SkDynamicMemoryWStream* cmap) { |
| 422 | // PDF spec defines that every bf* list can have at most 100 entries. |
| 423 | for (int i = 0; i < bfchar.count(); i += 100) { |
| 424 | int count = bfchar.count() - i; |
| 425 | count = SkMin32(count, 100); |
| 426 | cmap->writeDecAsText(count); |
| 427 | cmap->writeText(" beginbfchar\n"); |
| 428 | for (int j = 0; j < count; ++j) { |
| 429 | cmap->writeText("<"); |
| 430 | cmap->writeHexAsText(bfchar[i + j].fGlyphId, 4); |
| 431 | cmap->writeText("> <"); |
| 432 | cmap->writeHexAsText(bfchar[i + j].fUnicode, 4); |
| 433 | cmap->writeText(">\n"); |
| 434 | } |
| 435 | cmap->writeText("endbfchar\n"); |
vandebo@chromium.org | 6744d49 | 2011-05-09 18:13:47 +0000 | [diff] [blame] | 436 | } |
| 437 | } |
| 438 | |
vandebo@chromium.org | 04c643b | 2011-08-08 22:33:05 +0000 | [diff] [blame] | 439 | static void append_bfrange_section(const SkTDArray<BFRange>& bfrange, |
| 440 | SkDynamicMemoryWStream* cmap) { |
| 441 | // PDF spec defines that every bf* list can have at most 100 entries. |
| 442 | for (int i = 0; i < bfrange.count(); i += 100) { |
| 443 | int count = bfrange.count() - i; |
| 444 | count = SkMin32(count, 100); |
| 445 | cmap->writeDecAsText(count); |
| 446 | cmap->writeText(" beginbfrange\n"); |
| 447 | for (int j = 0; j < count; ++j) { |
| 448 | cmap->writeText("<"); |
| 449 | cmap->writeHexAsText(bfrange[i + j].fStart, 4); |
| 450 | cmap->writeText("> <"); |
| 451 | cmap->writeHexAsText(bfrange[i + j].fEnd, 4); |
| 452 | cmap->writeText("> <"); |
| 453 | cmap->writeHexAsText(bfrange[i + j].fUnicode, 4); |
| 454 | cmap->writeText(">\n"); |
| 455 | } |
| 456 | cmap->writeText("endbfrange\n"); |
| 457 | } |
| 458 | } |
| 459 | |
| 460 | // Generate <bfchar> and <bfrange> table according to PDF spec 1.4 and Adobe |
| 461 | // Technote 5014. |
| 462 | // The function is not static so we can test it in unit tests. |
| 463 | // |
| 464 | // Current implementation guarantees bfchar and bfrange entries do not overlap. |
| 465 | // |
| 466 | // Current implementation does not attempt aggresive optimizations against |
| 467 | // following case because the specification is not clear. |
| 468 | // |
| 469 | // 4 beginbfchar 1 beginbfchar |
| 470 | // <0003> <0013> <0020> <0014> |
| 471 | // <0005> <0015> to endbfchar |
| 472 | // <0007> <0017> 1 beginbfrange |
| 473 | // <0020> <0014> <0003> <0007> <0013> |
| 474 | // endbfchar endbfrange |
| 475 | // |
| 476 | // Adobe Technote 5014 said: "Code mappings (unlike codespace ranges) may |
commit-bot@chromium.org | 1236d8e | 2013-12-11 18:47:11 +0000 | [diff] [blame] | 477 | // overlap, but succeeding maps supersede preceding maps." |
vandebo@chromium.org | 04c643b | 2011-08-08 22:33:05 +0000 | [diff] [blame] | 478 | // |
| 479 | // In case of searching text in PDF, bfrange will have higher precedence so |
| 480 | // typing char id 0x0014 in search box will get glyph id 0x0004 first. However, |
| 481 | // the spec does not mention how will this kind of conflict being resolved. |
| 482 | // |
| 483 | // For the worst case (having 65536 continuous unicode and we use every other |
| 484 | // one of them), the possible savings by aggressive optimization is 416KB |
| 485 | // pre-compressed and does not provide enough motivation for implementation. |
caryclark@google.com | 1445a0d | 2012-06-06 12:04:24 +0000 | [diff] [blame] | 486 | |
| 487 | // FIXME: this should be in a header so that it is separately testable |
| 488 | // ( see caller in tests/ToUnicode.cpp ) |
| 489 | void append_cmap_sections(const SkTDArray<SkUnichar>& glyphToUnicode, |
| 490 | const SkPDFGlyphSet* subset, |
edisonn@google.com | 26d2e04 | 2013-09-18 19:29:08 +0000 | [diff] [blame] | 491 | SkDynamicMemoryWStream* cmap, |
commit-bot@chromium.org | 1236d8e | 2013-12-11 18:47:11 +0000 | [diff] [blame] | 492 | bool multiByteGlyphs, |
edisonn@google.com | 26d2e04 | 2013-09-18 19:29:08 +0000 | [diff] [blame] | 493 | uint16_t firstGlyphID, |
| 494 | uint16_t lastGlyphID); |
rmistry@google.com | d6176b0 | 2012-08-23 18:14:13 +0000 | [diff] [blame] | 495 | |
vandebo@chromium.org | 04c643b | 2011-08-08 22:33:05 +0000 | [diff] [blame] | 496 | void append_cmap_sections(const SkTDArray<SkUnichar>& glyphToUnicode, |
| 497 | const SkPDFGlyphSet* subset, |
edisonn@google.com | 26d2e04 | 2013-09-18 19:29:08 +0000 | [diff] [blame] | 498 | SkDynamicMemoryWStream* cmap, |
commit-bot@chromium.org | 1236d8e | 2013-12-11 18:47:11 +0000 | [diff] [blame] | 499 | bool multiByteGlyphs, |
edisonn@google.com | 26d2e04 | 2013-09-18 19:29:08 +0000 | [diff] [blame] | 500 | uint16_t firstGlyphID, |
| 501 | uint16_t lastGlyphID) { |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 502 | if (glyphToUnicode.isEmpty()) { |
| 503 | return; |
| 504 | } |
commit-bot@chromium.org | 1236d8e | 2013-12-11 18:47:11 +0000 | [diff] [blame] | 505 | int glyphOffset = 0; |
| 506 | if (!multiByteGlyphs) { |
| 507 | glyphOffset = firstGlyphID - 1; |
| 508 | } |
vandebo@chromium.org | 04c643b | 2011-08-08 22:33:05 +0000 | [diff] [blame] | 509 | |
| 510 | SkTDArray<BFChar> bfcharEntries; |
| 511 | SkTDArray<BFRange> bfrangeEntries; |
| 512 | |
bsalomon@google.com | cadbcb8 | 2012-01-06 19:22:11 +0000 | [diff] [blame] | 513 | BFRange currentRangeEntry = {0, 0, 0}; |
vandebo@chromium.org | 9ad3599 | 2012-01-03 18:35:39 +0000 | [diff] [blame] | 514 | bool rangeEmpty = true; |
commit-bot@chromium.org | 1236d8e | 2013-12-11 18:47:11 +0000 | [diff] [blame] | 515 | const int limit = |
| 516 | SkMin32(lastGlyphID + 1, glyphToUnicode.count()) - glyphOffset; |
vandebo@chromium.org | 04c643b | 2011-08-08 22:33:05 +0000 | [diff] [blame] | 517 | |
commit-bot@chromium.org | 1236d8e | 2013-12-11 18:47:11 +0000 | [diff] [blame] | 518 | for (int i = firstGlyphID - glyphOffset; i < limit + 1; ++i) { |
edisonn@google.com | 26d2e04 | 2013-09-18 19:29:08 +0000 | [diff] [blame] | 519 | bool inSubset = i < limit && |
commit-bot@chromium.org | 1236d8e | 2013-12-11 18:47:11 +0000 | [diff] [blame] | 520 | (subset == NULL || subset->has(i + glyphOffset)); |
vandebo@chromium.org | 9ad3599 | 2012-01-03 18:35:39 +0000 | [diff] [blame] | 521 | if (!rangeEmpty) { |
vandebo@chromium.org | 04c643b | 2011-08-08 22:33:05 +0000 | [diff] [blame] | 522 | // PDF spec requires bfrange not changing the higher byte, |
| 523 | // e.g. <1035> <10FF> <2222> is ok, but |
| 524 | // <1035> <1100> <2222> is no good |
vandebo@chromium.org | 9ad3599 | 2012-01-03 18:35:39 +0000 | [diff] [blame] | 525 | bool inRange = |
| 526 | i == currentRangeEntry.fEnd + 1 && |
| 527 | i >> 8 == currentRangeEntry.fStart >> 8 && |
edisonn@google.com | 26d2e04 | 2013-09-18 19:29:08 +0000 | [diff] [blame] | 528 | i < limit && |
commit-bot@chromium.org | 1236d8e | 2013-12-11 18:47:11 +0000 | [diff] [blame] | 529 | glyphToUnicode[i + glyphOffset] == |
| 530 | currentRangeEntry.fUnicode + i - currentRangeEntry.fStart; |
vandebo@chromium.org | 9ad3599 | 2012-01-03 18:35:39 +0000 | [diff] [blame] | 531 | if (!inSubset || !inRange) { |
| 532 | if (currentRangeEntry.fEnd > currentRangeEntry.fStart) { |
vandebo@chromium.org | 04c643b | 2011-08-08 22:33:05 +0000 | [diff] [blame] | 533 | bfrangeEntries.push(currentRangeEntry); |
| 534 | } else { |
| 535 | BFChar* entry = bfcharEntries.append(); |
| 536 | entry->fGlyphId = currentRangeEntry.fStart; |
| 537 | entry->fUnicode = currentRangeEntry.fUnicode; |
| 538 | } |
vandebo@chromium.org | 9ad3599 | 2012-01-03 18:35:39 +0000 | [diff] [blame] | 539 | rangeEmpty = true; |
vandebo@chromium.org | 04c643b | 2011-08-08 22:33:05 +0000 | [diff] [blame] | 540 | } |
vandebo@chromium.org | 9ad3599 | 2012-01-03 18:35:39 +0000 | [diff] [blame] | 541 | } |
| 542 | if (inSubset) { |
| 543 | currentRangeEntry.fEnd = i; |
| 544 | if (rangeEmpty) { |
| 545 | currentRangeEntry.fStart = i; |
commit-bot@chromium.org | 1236d8e | 2013-12-11 18:47:11 +0000 | [diff] [blame] | 546 | currentRangeEntry.fUnicode = glyphToUnicode[i + glyphOffset]; |
vandebo@chromium.org | 9ad3599 | 2012-01-03 18:35:39 +0000 | [diff] [blame] | 547 | rangeEmpty = false; |
vandebo@chromium.org | 04c643b | 2011-08-08 22:33:05 +0000 | [diff] [blame] | 548 | } |
| 549 | } |
| 550 | } |
| 551 | |
| 552 | // The spec requires all bfchar entries for a font must come before bfrange |
| 553 | // entries. |
| 554 | append_bfchar_section(bfcharEntries, cmap); |
| 555 | append_bfrange_section(bfrangeEntries, cmap); |
| 556 | } |
| 557 | |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 558 | static SkPDFStream* generate_tounicode_cmap( |
vandebo@chromium.org | 04c643b | 2011-08-08 22:33:05 +0000 | [diff] [blame] | 559 | const SkTDArray<SkUnichar>& glyphToUnicode, |
edisonn@google.com | 26d2e04 | 2013-09-18 19:29:08 +0000 | [diff] [blame] | 560 | const SkPDFGlyphSet* subset, |
commit-bot@chromium.org | 1236d8e | 2013-12-11 18:47:11 +0000 | [diff] [blame] | 561 | bool multiByteGlyphs, |
edisonn@google.com | 26d2e04 | 2013-09-18 19:29:08 +0000 | [diff] [blame] | 562 | uint16_t firstGlyphID, |
| 563 | uint16_t lastGlyphID) { |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 564 | SkDynamicMemoryWStream cmap; |
commit-bot@chromium.org | 1236d8e | 2013-12-11 18:47:11 +0000 | [diff] [blame] | 565 | if (multiByteGlyphs) { |
| 566 | append_tounicode_header(&cmap, firstGlyphID, lastGlyphID); |
| 567 | } else { |
| 568 | append_tounicode_header(&cmap, 1, lastGlyphID - firstGlyphID + 1); |
| 569 | } |
| 570 | append_cmap_sections(glyphToUnicode, subset, &cmap, multiByteGlyphs, |
edisonn@google.com | 26d2e04 | 2013-09-18 19:29:08 +0000 | [diff] [blame] | 571 | firstGlyphID, lastGlyphID); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 572 | append_cmap_footer(&cmap); |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 573 | SkAutoTUnref<SkData> cmapData(cmap.copyToData()); |
| 574 | return new SkPDFStream(cmapData.get()); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 575 | } |
| 576 | |
caryclark@google.com | 1445a0d | 2012-06-06 12:04:24 +0000 | [diff] [blame] | 577 | #if defined (SK_SFNTLY_SUBSETTER) |
vandebo@chromium.org | 1f16589 | 2011-07-26 02:11:41 +0000 | [diff] [blame] | 578 | static void sk_delete_array(const void* ptr, size_t, void*) { |
| 579 | // Use C-style cast to cast away const and cast type simultaneously. |
| 580 | delete[] (unsigned char*)ptr; |
| 581 | } |
caryclark@google.com | 1445a0d | 2012-06-06 12:04:24 +0000 | [diff] [blame] | 582 | #endif |
vandebo@chromium.org | 1f16589 | 2011-07-26 02:11:41 +0000 | [diff] [blame] | 583 | |
reed@google.com | aec4066 | 2014-04-18 19:29:07 +0000 | [diff] [blame] | 584 | static size_t get_subset_font_stream(const char* fontName, |
| 585 | const SkTypeface* typeface, |
| 586 | const SkTDArray<uint32_t>& subset, |
| 587 | SkPDFStream** fontStream) { |
reed@google.com | fed86bd | 2013-03-14 15:04:57 +0000 | [diff] [blame] | 588 | int ttcIndex; |
| 589 | SkAutoTUnref<SkStream> fontData(typeface->openStream(&ttcIndex)); |
halcanary | 67ec1f8 | 2014-06-27 11:36:20 -0700 | [diff] [blame] | 590 | SkASSERT(fontData.get()); |
vandebo@chromium.org | 1f16589 | 2011-07-26 02:11:41 +0000 | [diff] [blame] | 591 | |
reed@google.com | aec4066 | 2014-04-18 19:29:07 +0000 | [diff] [blame] | 592 | size_t fontSize = fontData->getLength(); |
vandebo@chromium.org | 1f16589 | 2011-07-26 02:11:41 +0000 | [diff] [blame] | 593 | |
| 594 | #if defined (SK_SFNTLY_SUBSETTER) |
vandebo@chromium.org | 1f16589 | 2011-07-26 02:11:41 +0000 | [diff] [blame] | 595 | // Read font into buffer. |
| 596 | SkPDFStream* subsetFontStream = NULL; |
| 597 | SkTDArray<unsigned char> originalFont; |
reed@google.com | aec4066 | 2014-04-18 19:29:07 +0000 | [diff] [blame] | 598 | originalFont.setCount(SkToInt(fontSize)); |
| 599 | if (fontData->read(originalFont.begin(), fontSize) == fontSize) { |
vandebo@chromium.org | 1f16589 | 2011-07-26 02:11:41 +0000 | [diff] [blame] | 600 | unsigned char* subsetFont = NULL; |
vandebo@chromium.org | 17e66e2 | 2011-07-27 20:59:55 +0000 | [diff] [blame] | 601 | // sfntly requires unsigned int* to be passed in, as far as we know, |
| 602 | // unsigned int is equivalent to uint32_t on all platforms. |
| 603 | SK_COMPILE_ASSERT(sizeof(unsigned int) == sizeof(uint32_t), |
| 604 | unsigned_int_not_32_bits); |
vandebo@chromium.org | 1f16589 | 2011-07-26 02:11:41 +0000 | [diff] [blame] | 605 | int subsetFontSize = SfntlyWrapper::SubsetFont(fontName, |
| 606 | originalFont.begin(), |
| 607 | fontSize, |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 608 | subset.begin(), |
| 609 | subset.count(), |
vandebo@chromium.org | 1f16589 | 2011-07-26 02:11:41 +0000 | [diff] [blame] | 610 | &subsetFont); |
| 611 | if (subsetFontSize > 0 && subsetFont != NULL) { |
vandebo@chromium.org | 93225ff | 2011-07-27 18:38:11 +0000 | [diff] [blame] | 612 | SkAutoDataUnref data(SkData::NewWithProc(subsetFont, |
| 613 | subsetFontSize, |
| 614 | sk_delete_array, |
| 615 | NULL)); |
| 616 | subsetFontStream = new SkPDFStream(data.get()); |
vandebo@chromium.org | 1f16589 | 2011-07-26 02:11:41 +0000 | [diff] [blame] | 617 | fontSize = subsetFontSize; |
| 618 | } |
| 619 | } |
| 620 | if (subsetFontStream) { |
| 621 | *fontStream = subsetFontStream; |
| 622 | return fontSize; |
| 623 | } |
vandebo@chromium.org | 938ea62 | 2013-09-05 19:44:44 +0000 | [diff] [blame] | 624 | fontData->rewind(); |
sugoi@google.com | e2e8113 | 2013-03-05 18:35:55 +0000 | [diff] [blame] | 625 | #else |
| 626 | sk_ignore_unused_variable(fontName); |
| 627 | sk_ignore_unused_variable(subset); |
vandebo@chromium.org | 1f16589 | 2011-07-26 02:11:41 +0000 | [diff] [blame] | 628 | #endif |
| 629 | |
| 630 | // Fail over: just embed the whole font. |
| 631 | *fontStream = new SkPDFStream(fontData.get()); |
| 632 | return fontSize; |
| 633 | } |
| 634 | |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 635 | /////////////////////////////////////////////////////////////////////////////// |
| 636 | // class SkPDFGlyphSet |
| 637 | /////////////////////////////////////////////////////////////////////////////// |
| 638 | |
| 639 | SkPDFGlyphSet::SkPDFGlyphSet() : fBitSet(SK_MaxU16 + 1) { |
| 640 | } |
| 641 | |
| 642 | void SkPDFGlyphSet::set(const uint16_t* glyphIDs, int numGlyphs) { |
| 643 | for (int i = 0; i < numGlyphs; ++i) { |
| 644 | fBitSet.setBit(glyphIDs[i], true); |
| 645 | } |
| 646 | } |
| 647 | |
| 648 | bool SkPDFGlyphSet::has(uint16_t glyphID) const { |
| 649 | return fBitSet.isBitSet(glyphID); |
| 650 | } |
| 651 | |
| 652 | void SkPDFGlyphSet::merge(const SkPDFGlyphSet& usage) { |
| 653 | fBitSet.orBits(usage.fBitSet); |
| 654 | } |
| 655 | |
vandebo@chromium.org | 17e66e2 | 2011-07-27 20:59:55 +0000 | [diff] [blame] | 656 | void SkPDFGlyphSet::exportTo(SkTDArray<unsigned int>* glyphIDs) const { |
| 657 | fBitSet.exportTo(glyphIDs); |
| 658 | } |
| 659 | |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 660 | /////////////////////////////////////////////////////////////////////////////// |
| 661 | // class SkPDFGlyphSetMap |
| 662 | /////////////////////////////////////////////////////////////////////////////// |
| 663 | SkPDFGlyphSetMap::FontGlyphSetPair::FontGlyphSetPair(SkPDFFont* font, |
| 664 | SkPDFGlyphSet* glyphSet) |
| 665 | : fFont(font), |
| 666 | fGlyphSet(glyphSet) { |
| 667 | } |
| 668 | |
| 669 | SkPDFGlyphSetMap::F2BIter::F2BIter(const SkPDFGlyphSetMap& map) { |
| 670 | reset(map); |
| 671 | } |
| 672 | |
commit-bot@chromium.org | aa537d4 | 2013-02-28 19:03:13 +0000 | [diff] [blame] | 673 | const SkPDFGlyphSetMap::FontGlyphSetPair* SkPDFGlyphSetMap::F2BIter::next() const { |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 674 | if (fIndex >= fMap->count()) { |
| 675 | return NULL; |
| 676 | } |
| 677 | return &((*fMap)[fIndex++]); |
| 678 | } |
| 679 | |
| 680 | void SkPDFGlyphSetMap::F2BIter::reset(const SkPDFGlyphSetMap& map) { |
| 681 | fMap = &(map.fMap); |
| 682 | fIndex = 0; |
| 683 | } |
| 684 | |
| 685 | SkPDFGlyphSetMap::SkPDFGlyphSetMap() { |
| 686 | } |
| 687 | |
| 688 | SkPDFGlyphSetMap::~SkPDFGlyphSetMap() { |
| 689 | reset(); |
| 690 | } |
| 691 | |
| 692 | void SkPDFGlyphSetMap::merge(const SkPDFGlyphSetMap& usage) { |
| 693 | for (int i = 0; i < usage.fMap.count(); ++i) { |
| 694 | SkPDFGlyphSet* myUsage = getGlyphSetForFont(usage.fMap[i].fFont); |
| 695 | myUsage->merge(*(usage.fMap[i].fGlyphSet)); |
| 696 | } |
| 697 | } |
| 698 | |
| 699 | void SkPDFGlyphSetMap::reset() { |
| 700 | for (int i = 0; i < fMap.count(); ++i) { |
| 701 | delete fMap[i].fGlyphSet; // Should not be NULL. |
| 702 | } |
| 703 | fMap.reset(); |
| 704 | } |
| 705 | |
| 706 | void SkPDFGlyphSetMap::noteGlyphUsage(SkPDFFont* font, const uint16_t* glyphIDs, |
| 707 | int numGlyphs) { |
| 708 | SkPDFGlyphSet* subset = getGlyphSetForFont(font); |
| 709 | if (subset) { |
| 710 | subset->set(glyphIDs, numGlyphs); |
| 711 | } |
| 712 | } |
| 713 | |
| 714 | SkPDFGlyphSet* SkPDFGlyphSetMap::getGlyphSetForFont(SkPDFFont* font) { |
| 715 | int index = fMap.count(); |
| 716 | for (int i = 0; i < index; ++i) { |
| 717 | if (fMap[i].fFont == font) { |
| 718 | return fMap[i].fGlyphSet; |
| 719 | } |
| 720 | } |
| 721 | fMap.append(); |
| 722 | index = fMap.count() - 1; |
| 723 | fMap[index].fFont = font; |
| 724 | fMap[index].fGlyphSet = new SkPDFGlyphSet(); |
| 725 | return fMap[index].fGlyphSet; |
| 726 | } |
| 727 | |
| 728 | /////////////////////////////////////////////////////////////////////////////// |
| 729 | // class SkPDFFont |
| 730 | /////////////////////////////////////////////////////////////////////////////// |
| 731 | |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 732 | /* Font subset design: It would be nice to be able to subset fonts |
| 733 | * (particularly type 3 fonts), but it's a lot of work and not a priority. |
| 734 | * |
| 735 | * Resources are canonicalized and uniqueified by pointer so there has to be |
| 736 | * some additional state indicating which subset of the font is used. It |
| 737 | * must be maintained at the page granularity and then combined at the document |
| 738 | * granularity. a) change SkPDFFont to fill in its state on demand, kind of |
| 739 | * like SkPDFGraphicState. b) maintain a per font glyph usage class in each |
| 740 | * page/pdf device. c) in the document, retrieve the per font glyph usage |
| 741 | * from each page and combine it and ask for a resource with that subset. |
| 742 | */ |
| 743 | |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 744 | SkPDFFont::~SkPDFFont() { |
reed@google.com | f6c3ebd | 2011-07-20 17:20:28 +0000 | [diff] [blame] | 745 | SkAutoMutexAcquire lock(CanonicalFontsMutex()); |
edisonn@google.com | 022e857 | 2012-10-23 21:32:39 +0000 | [diff] [blame] | 746 | int index = -1; |
| 747 | for (int i = 0 ; i < CanonicalFonts().count() ; i++) { |
| 748 | if (CanonicalFonts()[i].fFont == this) { |
| 749 | index = i; |
| 750 | } |
| 751 | } |
skia.committer@gmail.com | 1e34ff7 | 2012-10-24 02:01:24 +0000 | [diff] [blame] | 752 | |
edisonn@google.com | 022e857 | 2012-10-23 21:32:39 +0000 | [diff] [blame] | 753 | SkDEBUGCODE(int indexFound;) |
| 754 | SkASSERT(index == -1 || |
reed@google.com | fed86bd | 2013-03-14 15:04:57 +0000 | [diff] [blame] | 755 | (Find(fTypeface->uniqueID(), |
edisonn@google.com | 022e857 | 2012-10-23 21:32:39 +0000 | [diff] [blame] | 756 | fFirstGlyphID, |
| 757 | &indexFound) && |
| 758 | index == indexFound)); |
| 759 | if (index >= 0) { |
reed@google.com | f6c3ebd | 2011-07-20 17:20:28 +0000 | [diff] [blame] | 760 | CanonicalFonts().removeShuffle(index); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 761 | } |
| 762 | fResources.unrefAll(); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 763 | } |
| 764 | |
edisonn@google.com | 6addb19 | 2013-04-02 15:33:08 +0000 | [diff] [blame] | 765 | void SkPDFFont::getResources(const SkTSet<SkPDFObject*>& knownResourceObjects, |
| 766 | SkTSet<SkPDFObject*>* newResourceObjects) { |
| 767 | GetResourcesHelper(&fResources, knownResourceObjects, newResourceObjects); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 768 | } |
| 769 | |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 770 | SkTypeface* SkPDFFont::typeface() { |
| 771 | return fTypeface.get(); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 772 | } |
| 773 | |
vandebo@chromium.org | f0ec266 | 2011-05-29 05:55:42 +0000 | [diff] [blame] | 774 | SkAdvancedTypefaceMetrics::FontType SkPDFFont::getType() { |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 775 | return fFontType; |
vandebo@chromium.org | f0ec266 | 2011-05-29 05:55:42 +0000 | [diff] [blame] | 776 | } |
| 777 | |
vandebo | 0f9bad0 | 2014-06-19 11:05:39 -0700 | [diff] [blame] | 778 | bool SkPDFFont::canEmbed() const { |
| 779 | if (!fFontInfo.get()) { |
| 780 | SkASSERT(fFontType == SkAdvancedTypefaceMetrics::kOther_Font); |
| 781 | return true; |
| 782 | } |
| 783 | return (fFontInfo->fFlags & |
| 784 | SkAdvancedTypefaceMetrics::kNotEmbeddable_FontFlag) == 0; |
| 785 | } |
| 786 | |
| 787 | bool SkPDFFont::canSubset() const { |
| 788 | if (!fFontInfo.get()) { |
| 789 | SkASSERT(fFontType == SkAdvancedTypefaceMetrics::kOther_Font); |
| 790 | return true; |
| 791 | } |
| 792 | return (fFontInfo->fFlags & |
| 793 | SkAdvancedTypefaceMetrics::kNotSubsettable_FontFlag) == 0; |
| 794 | } |
| 795 | |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 796 | bool SkPDFFont::hasGlyph(uint16_t id) { |
| 797 | return (id >= fFirstGlyphID && id <= fLastGlyphID) || id == 0; |
| 798 | } |
| 799 | |
reed@google.com | aec4066 | 2014-04-18 19:29:07 +0000 | [diff] [blame] | 800 | int SkPDFFont::glyphsToPDFFontEncoding(uint16_t* glyphIDs, int numGlyphs) { |
vandebo@chromium.org | 0129410 | 2011-02-28 19:52:18 +0000 | [diff] [blame] | 801 | // A font with multibyte glyphs will support all glyph IDs in a single font. |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 802 | if (this->multiByteGlyphs()) { |
vandebo@chromium.org | 0129410 | 2011-02-28 19:52:18 +0000 | [diff] [blame] | 803 | return numGlyphs; |
| 804 | } |
| 805 | |
reed@google.com | aec4066 | 2014-04-18 19:29:07 +0000 | [diff] [blame] | 806 | for (int i = 0; i < numGlyphs; i++) { |
vandebo@chromium.org | 0129410 | 2011-02-28 19:52:18 +0000 | [diff] [blame] | 807 | if (glyphIDs[i] == 0) { |
| 808 | continue; |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 809 | } |
vandebo@chromium.org | 0129410 | 2011-02-28 19:52:18 +0000 | [diff] [blame] | 810 | if (glyphIDs[i] < fFirstGlyphID || glyphIDs[i] > fLastGlyphID) { |
| 811 | return i; |
| 812 | } |
| 813 | glyphIDs[i] -= (fFirstGlyphID - 1); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 814 | } |
| 815 | |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 816 | return numGlyphs; |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 817 | } |
| 818 | |
| 819 | // static |
reed@google.com | f6c3ebd | 2011-07-20 17:20:28 +0000 | [diff] [blame] | 820 | SkPDFFont* SkPDFFont::GetFontResource(SkTypeface* typeface, uint16_t glyphID) { |
| 821 | SkAutoMutexAcquire lock(CanonicalFontsMutex()); |
reed@google.com | fed86bd | 2013-03-14 15:04:57 +0000 | [diff] [blame] | 822 | |
| 823 | SkAutoResolveDefaultTypeface autoResolve(typeface); |
| 824 | typeface = autoResolve.get(); |
| 825 | |
| 826 | const uint32_t fontID = typeface->uniqueID(); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 827 | int relatedFontIndex; |
| 828 | if (Find(fontID, glyphID, &relatedFontIndex)) { |
| 829 | CanonicalFonts()[relatedFontIndex].fFont->ref(); |
| 830 | return CanonicalFonts()[relatedFontIndex].fFont; |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 831 | } |
| 832 | |
halcanary | fb747e2 | 2014-07-11 19:45:23 -0700 | [diff] [blame] | 833 | SkAutoTUnref<const SkAdvancedTypefaceMetrics> fontMetrics; |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 834 | SkPDFDict* relatedFontDescriptor = NULL; |
| 835 | if (relatedFontIndex >= 0) { |
| 836 | SkPDFFont* relatedFont = CanonicalFonts()[relatedFontIndex].fFont; |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 837 | fontMetrics.reset(relatedFont->fontInfo()); |
| 838 | SkSafeRef(fontMetrics.get()); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 839 | relatedFontDescriptor = relatedFont->getFontDescriptor(); |
edisonn@google.com | 022e857 | 2012-10-23 21:32:39 +0000 | [diff] [blame] | 840 | |
| 841 | // This only is to catch callers who pass invalid glyph ids. |
| 842 | // If glyph id is invalid, then we will create duplicate entries |
vandebo | 0f9bad0 | 2014-06-19 11:05:39 -0700 | [diff] [blame] | 843 | // for TrueType fonts. |
skia.committer@gmail.com | 1e34ff7 | 2012-10-24 02:01:24 +0000 | [diff] [blame] | 844 | SkAdvancedTypefaceMetrics::FontType fontType = |
edisonn@google.com | 022e857 | 2012-10-23 21:32:39 +0000 | [diff] [blame] | 845 | fontMetrics.get() ? fontMetrics.get()->fType : |
| 846 | SkAdvancedTypefaceMetrics::kOther_Font; |
| 847 | |
| 848 | if (fontType == SkAdvancedTypefaceMetrics::kType1CID_Font || |
| 849 | fontType == SkAdvancedTypefaceMetrics::kTrueType_Font) { |
| 850 | CanonicalFonts()[relatedFontIndex].fFont->ref(); |
| 851 | return CanonicalFonts()[relatedFontIndex].fFont; |
skia.committer@gmail.com | 1e34ff7 | 2012-10-24 02:01:24 +0000 | [diff] [blame] | 852 | } |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 853 | } else { |
vandebo@chromium.org | 6744d49 | 2011-05-09 18:13:47 +0000 | [diff] [blame] | 854 | SkAdvancedTypefaceMetrics::PerGlyphInfo info; |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 855 | info = SkAdvancedTypefaceMetrics::kGlyphNames_PerGlyphInfo; |
vandebo@chromium.org | 6744d49 | 2011-05-09 18:13:47 +0000 | [diff] [blame] | 856 | info = SkTBitOr<SkAdvancedTypefaceMetrics::PerGlyphInfo>( |
| 857 | info, SkAdvancedTypefaceMetrics::kToUnicode_PerGlyphInfo); |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 858 | #if !defined (SK_SFNTLY_SUBSETTER) |
| 859 | info = SkTBitOr<SkAdvancedTypefaceMetrics::PerGlyphInfo>( |
| 860 | info, SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo); |
| 861 | #endif |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 862 | fontMetrics.reset( |
reed@google.com | fed86bd | 2013-03-14 15:04:57 +0000 | [diff] [blame] | 863 | typeface->getAdvancedTypefaceMetrics(info, NULL, 0)); |
vandebo@chromium.org | 610f716 | 2012-03-14 18:34:15 +0000 | [diff] [blame] | 864 | #if defined (SK_SFNTLY_SUBSETTER) |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 865 | if (fontMetrics.get() && |
vandebo@chromium.org | b3b4655 | 2011-10-17 23:22:49 +0000 | [diff] [blame] | 866 | fontMetrics->fType != SkAdvancedTypefaceMetrics::kTrueType_Font) { |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 867 | // Font does not support subsetting, get new info with advance. |
| 868 | info = SkTBitOr<SkAdvancedTypefaceMetrics::PerGlyphInfo>( |
| 869 | info, SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo); |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 870 | fontMetrics.reset( |
reed@google.com | fed86bd | 2013-03-14 15:04:57 +0000 | [diff] [blame] | 871 | typeface->getAdvancedTypefaceMetrics(info, NULL, 0)); |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 872 | } |
| 873 | #endif |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 874 | } |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 875 | |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 876 | SkPDFFont* font = Create(fontMetrics.get(), typeface, glyphID, |
| 877 | relatedFontDescriptor); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 878 | FontRec newEntry(font, fontID, font->fFirstGlyphID); |
reed@google.com | f6c3ebd | 2011-07-20 17:20:28 +0000 | [diff] [blame] | 879 | CanonicalFonts().push(newEntry); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 880 | return font; // Return the reference new SkPDFFont() created. |
| 881 | } |
| 882 | |
sugoi@google.com | e2e8113 | 2013-03-05 18:35:55 +0000 | [diff] [blame] | 883 | SkPDFFont* SkPDFFont::getFontSubset(const SkPDFGlyphSet*) { |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 884 | return NULL; // Default: no support. |
| 885 | } |
| 886 | |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 887 | // static |
reed@google.com | f6c3ebd | 2011-07-20 17:20:28 +0000 | [diff] [blame] | 888 | SkTDArray<SkPDFFont::FontRec>& SkPDFFont::CanonicalFonts() { |
halcanary | 24480bc | 2014-06-20 11:28:37 -0700 | [diff] [blame] | 889 | SkPDFFont::CanonicalFontsMutex().assertHeld(); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 890 | static SkTDArray<FontRec> gCanonicalFonts; |
| 891 | return gCanonicalFonts; |
| 892 | } |
| 893 | |
bungeman | d6aeb6d | 2014-07-25 11:52:47 -0700 | [diff] [blame] | 894 | SK_DECLARE_STATIC_MUTEX(gCanonicalFontsMutex); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 895 | // static |
digit@google.com | 1771cbf | 2012-01-26 21:26:40 +0000 | [diff] [blame] | 896 | SkBaseMutex& SkPDFFont::CanonicalFontsMutex() { |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 897 | return gCanonicalFontsMutex; |
| 898 | } |
| 899 | |
| 900 | // static |
reed@google.com | f6c3ebd | 2011-07-20 17:20:28 +0000 | [diff] [blame] | 901 | bool SkPDFFont::Find(uint32_t fontID, uint16_t glyphID, int* index) { |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 902 | // TODO(vandebo): Optimize this, do only one search? |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 903 | FontRec search(NULL, fontID, glyphID); |
reed@google.com | f6c3ebd | 2011-07-20 17:20:28 +0000 | [diff] [blame] | 904 | *index = CanonicalFonts().find(search); |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 905 | if (*index >= 0) { |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 906 | return true; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 907 | } |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 908 | search.fGlyphID = 0; |
reed@google.com | f6c3ebd | 2011-07-20 17:20:28 +0000 | [diff] [blame] | 909 | *index = CanonicalFonts().find(search); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 910 | return false; |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 911 | } |
| 912 | |
halcanary | fb747e2 | 2014-07-11 19:45:23 -0700 | [diff] [blame] | 913 | SkPDFFont::SkPDFFont(const SkAdvancedTypefaceMetrics* info, |
| 914 | SkTypeface* typeface, |
sugoi@google.com | e2e8113 | 2013-03-05 18:35:55 +0000 | [diff] [blame] | 915 | SkPDFDict* relatedFontDescriptor) |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 916 | : SkPDFDict("Font"), |
reed@google.com | fed86bd | 2013-03-14 15:04:57 +0000 | [diff] [blame] | 917 | fTypeface(ref_or_default(typeface)), |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 918 | fFirstGlyphID(1), |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 919 | fLastGlyphID(info ? info->fLastGlyphID : 0), |
commit-bot@chromium.org | 4566107 | 2013-12-05 21:14:02 +0000 | [diff] [blame] | 920 | fFontInfo(SkSafeRef(info)), |
| 921 | fDescriptor(SkSafeRef(relatedFontDescriptor)) { |
vandebo | 0f9bad0 | 2014-06-19 11:05:39 -0700 | [diff] [blame] | 922 | if (info == NULL || |
| 923 | info->fFlags & SkAdvancedTypefaceMetrics::kMultiMaster_FontFlag) { |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 924 | fFontType = SkAdvancedTypefaceMetrics::kOther_Font; |
| 925 | } else { |
| 926 | fFontType = info->fType; |
| 927 | } |
| 928 | } |
| 929 | |
| 930 | // static |
halcanary | fb747e2 | 2014-07-11 19:45:23 -0700 | [diff] [blame] | 931 | SkPDFFont* SkPDFFont::Create(const SkAdvancedTypefaceMetrics* info, |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 932 | SkTypeface* typeface, uint16_t glyphID, |
| 933 | SkPDFDict* relatedFontDescriptor) { |
| 934 | SkAdvancedTypefaceMetrics::FontType type = |
vandebo | 0f9bad0 | 2014-06-19 11:05:39 -0700 | [diff] [blame] | 935 | info ? info->fType : SkAdvancedTypefaceMetrics::kOther_Font; |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 936 | |
vandebo | 0f9bad0 | 2014-06-19 11:05:39 -0700 | [diff] [blame] | 937 | if (info && |
| 938 | (info->fFlags & SkAdvancedTypefaceMetrics::kMultiMaster_FontFlag)) { |
vandebo@chromium.org | f0ec266 | 2011-05-29 05:55:42 +0000 | [diff] [blame] | 939 | NOT_IMPLEMENTED(true, true); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 940 | return new SkPDFType3Font(info, |
| 941 | typeface, |
sugoi@google.com | e2e8113 | 2013-03-05 18:35:55 +0000 | [diff] [blame] | 942 | glyphID); |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 943 | } |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 944 | if (type == SkAdvancedTypefaceMetrics::kType1CID_Font || |
| 945 | type == SkAdvancedTypefaceMetrics::kTrueType_Font) { |
| 946 | SkASSERT(relatedFontDescriptor == NULL); |
| 947 | return new SkPDFType0Font(info, typeface); |
| 948 | } |
| 949 | if (type == SkAdvancedTypefaceMetrics::kType1_Font) { |
| 950 | return new SkPDFType1Font(info, |
| 951 | typeface, |
| 952 | glyphID, |
| 953 | relatedFontDescriptor); |
vandebo@chromium.org | 6504cfd | 2011-07-23 20:22:53 +0000 | [diff] [blame] | 954 | } |
vandebo@chromium.org | 31dcee7 | 2011-07-23 21:13:30 +0000 | [diff] [blame] | 955 | |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 956 | SkASSERT(type == SkAdvancedTypefaceMetrics::kCFF_Font || |
vandebo | 0f9bad0 | 2014-06-19 11:05:39 -0700 | [diff] [blame] | 957 | type == SkAdvancedTypefaceMetrics::kOther_Font); |
vandebo@chromium.org | 31dcee7 | 2011-07-23 21:13:30 +0000 | [diff] [blame] | 958 | |
sugoi@google.com | e2e8113 | 2013-03-05 18:35:55 +0000 | [diff] [blame] | 959 | return new SkPDFType3Font(info, typeface, glyphID); |
vandebo@chromium.org | 31dcee7 | 2011-07-23 21:13:30 +0000 | [diff] [blame] | 960 | } |
| 961 | |
halcanary | fb747e2 | 2014-07-11 19:45:23 -0700 | [diff] [blame] | 962 | const SkAdvancedTypefaceMetrics* SkPDFFont::fontInfo() { |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 963 | return fFontInfo.get(); |
vandebo@chromium.org | 31dcee7 | 2011-07-23 21:13:30 +0000 | [diff] [blame] | 964 | } |
| 965 | |
halcanary | fb747e2 | 2014-07-11 19:45:23 -0700 | [diff] [blame] | 966 | void SkPDFFont::setFontInfo(const SkAdvancedTypefaceMetrics* info) { |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 967 | if (info == NULL || info == fFontInfo.get()) { |
| 968 | return; |
| 969 | } |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 970 | fFontInfo.reset(info); |
| 971 | SkSafeRef(info); |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 972 | } |
| 973 | |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 974 | uint16_t SkPDFFont::firstGlyphID() const { |
| 975 | return fFirstGlyphID; |
| 976 | } |
| 977 | |
| 978 | uint16_t SkPDFFont::lastGlyphID() const { |
| 979 | return fLastGlyphID; |
| 980 | } |
| 981 | |
| 982 | void SkPDFFont::setLastGlyphID(uint16_t glyphID) { |
| 983 | fLastGlyphID = glyphID; |
| 984 | } |
| 985 | |
| 986 | void SkPDFFont::addResource(SkPDFObject* object) { |
| 987 | SkASSERT(object != NULL); |
| 988 | fResources.push(object); |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 989 | object->ref(); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 990 | } |
| 991 | |
| 992 | SkPDFDict* SkPDFFont::getFontDescriptor() { |
| 993 | return fDescriptor.get(); |
| 994 | } |
| 995 | |
| 996 | void SkPDFFont::setFontDescriptor(SkPDFDict* descriptor) { |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 997 | fDescriptor.reset(descriptor); |
| 998 | SkSafeRef(descriptor); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 999 | } |
| 1000 | |
| 1001 | bool SkPDFFont::addCommonFontDescriptorEntries(int16_t defaultWidth) { |
| 1002 | if (fDescriptor.get() == NULL) { |
| 1003 | return false; |
vandebo@chromium.org | 31dcee7 | 2011-07-23 21:13:30 +0000 | [diff] [blame] | 1004 | } |
| 1005 | |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1006 | const uint16_t emSize = fFontInfo->fEmSize; |
| 1007 | |
| 1008 | fDescriptor->insertName("FontName", fFontInfo->fFontName); |
vandebo@chromium.org | dcf9c19 | 2013-03-13 20:01:51 +0000 | [diff] [blame] | 1009 | fDescriptor->insertInt("Flags", fFontInfo->fStyle | kPdfSymbolic); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1010 | fDescriptor->insertScalar("Ascent", |
| 1011 | scaleFromFontUnits(fFontInfo->fAscent, emSize)); |
| 1012 | fDescriptor->insertScalar("Descent", |
| 1013 | scaleFromFontUnits(fFontInfo->fDescent, emSize)); |
| 1014 | fDescriptor->insertScalar("StemV", |
| 1015 | scaleFromFontUnits(fFontInfo->fStemV, emSize)); |
halcanary | fb747e2 | 2014-07-11 19:45:23 -0700 | [diff] [blame] | 1016 | |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1017 | fDescriptor->insertScalar("CapHeight", |
| 1018 | scaleFromFontUnits(fFontInfo->fCapHeight, emSize)); |
| 1019 | fDescriptor->insertInt("ItalicAngle", fFontInfo->fItalicAngle); |
| 1020 | fDescriptor->insert("FontBBox", makeFontBBox(fFontInfo->fBBox, |
| 1021 | fFontInfo->fEmSize))->unref(); |
| 1022 | |
| 1023 | if (defaultWidth > 0) { |
| 1024 | fDescriptor->insertScalar("MissingWidth", |
| 1025 | scaleFromFontUnits(defaultWidth, emSize)); |
| 1026 | } |
| 1027 | return true; |
| 1028 | } |
| 1029 | |
| 1030 | void SkPDFFont::adjustGlyphRangeForSingleByteEncoding(int16_t glyphID) { |
| 1031 | // Single byte glyph encoding supports a max of 255 glyphs. |
| 1032 | fFirstGlyphID = glyphID - (glyphID - 1) % 255; |
| 1033 | if (fLastGlyphID > fFirstGlyphID + 255 - 1) { |
| 1034 | fLastGlyphID = fFirstGlyphID + 255 - 1; |
| 1035 | } |
| 1036 | } |
| 1037 | |
| 1038 | bool SkPDFFont::FontRec::operator==(const SkPDFFont::FontRec& b) const { |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 1039 | if (fFontID != b.fFontID) { |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1040 | return false; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 1041 | } |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1042 | if (fFont != NULL && b.fFont != NULL) { |
| 1043 | return fFont->fFirstGlyphID == b.fFont->fFirstGlyphID && |
| 1044 | fFont->fLastGlyphID == b.fFont->fLastGlyphID; |
| 1045 | } |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 1046 | if (fGlyphID == 0 || b.fGlyphID == 0) { |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1047 | return true; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 1048 | } |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1049 | |
| 1050 | if (fFont != NULL) { |
| 1051 | return fFont->fFirstGlyphID <= b.fGlyphID && |
| 1052 | b.fGlyphID <= fFont->fLastGlyphID; |
| 1053 | } else if (b.fFont != NULL) { |
| 1054 | return b.fFont->fFirstGlyphID <= fGlyphID && |
| 1055 | fGlyphID <= b.fFont->fLastGlyphID; |
| 1056 | } |
| 1057 | return fGlyphID == b.fGlyphID; |
| 1058 | } |
| 1059 | |
| 1060 | SkPDFFont::FontRec::FontRec(SkPDFFont* font, uint32_t fontID, uint16_t glyphID) |
| 1061 | : fFont(font), |
| 1062 | fFontID(fontID), |
| 1063 | fGlyphID(glyphID) { |
| 1064 | } |
| 1065 | |
| 1066 | void SkPDFFont::populateToUnicodeTable(const SkPDFGlyphSet* subset) { |
| 1067 | if (fFontInfo == NULL || fFontInfo->fGlyphToUnicode.begin() == NULL) { |
| 1068 | return; |
| 1069 | } |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1070 | SkAutoTUnref<SkPDFStream> pdfCmap( |
edisonn@google.com | 26d2e04 | 2013-09-18 19:29:08 +0000 | [diff] [blame] | 1071 | generate_tounicode_cmap(fFontInfo->fGlyphToUnicode, subset, |
commit-bot@chromium.org | 1236d8e | 2013-12-11 18:47:11 +0000 | [diff] [blame] | 1072 | multiByteGlyphs(), firstGlyphID(), |
| 1073 | lastGlyphID())); |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1074 | addResource(pdfCmap.get()); |
vandebo@chromium.org | 6744d49 | 2011-05-09 18:13:47 +0000 | [diff] [blame] | 1075 | insert("ToUnicode", new SkPDFObjRef(pdfCmap.get()))->unref(); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1076 | } |
| 1077 | |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1078 | /////////////////////////////////////////////////////////////////////////////// |
| 1079 | // class SkPDFType0Font |
| 1080 | /////////////////////////////////////////////////////////////////////////////// |
vandebo@chromium.org | f7c1576 | 2011-02-01 22:19:44 +0000 | [diff] [blame] | 1081 | |
halcanary | fb747e2 | 2014-07-11 19:45:23 -0700 | [diff] [blame] | 1082 | SkPDFType0Font::SkPDFType0Font(const SkAdvancedTypefaceMetrics* info, |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1083 | SkTypeface* typeface) |
sugoi@google.com | e2e8113 | 2013-03-05 18:35:55 +0000 | [diff] [blame] | 1084 | : SkPDFFont(info, typeface, NULL) { |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1085 | SkDEBUGCODE(fPopulated = false); |
vandebo | 0f9bad0 | 2014-06-19 11:05:39 -0700 | [diff] [blame] | 1086 | if (!canSubset()) { |
| 1087 | populate(NULL); |
| 1088 | } |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1089 | } |
| 1090 | |
| 1091 | SkPDFType0Font::~SkPDFType0Font() {} |
| 1092 | |
| 1093 | SkPDFFont* SkPDFType0Font::getFontSubset(const SkPDFGlyphSet* subset) { |
vandebo | 0f9bad0 | 2014-06-19 11:05:39 -0700 | [diff] [blame] | 1094 | if (!canSubset()) { |
| 1095 | return NULL; |
| 1096 | } |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1097 | SkPDFType0Font* newSubset = new SkPDFType0Font(fontInfo(), typeface()); |
| 1098 | newSubset->populate(subset); |
| 1099 | return newSubset; |
| 1100 | } |
| 1101 | |
| 1102 | #ifdef SK_DEBUG |
| 1103 | void SkPDFType0Font::emitObject(SkWStream* stream, SkPDFCatalog* catalog, |
| 1104 | bool indirect) { |
| 1105 | SkASSERT(fPopulated); |
| 1106 | return INHERITED::emitObject(stream, catalog, indirect); |
| 1107 | } |
| 1108 | #endif |
| 1109 | |
| 1110 | bool SkPDFType0Font::populate(const SkPDFGlyphSet* subset) { |
| 1111 | insertName("Subtype", "Type0"); |
| 1112 | insertName("BaseFont", fontInfo()->fFontName); |
| 1113 | insertName("Encoding", "Identity-H"); |
| 1114 | |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1115 | SkAutoTUnref<SkPDFCIDFont> newCIDFont( |
| 1116 | new SkPDFCIDFont(fontInfo(), typeface(), subset)); |
| 1117 | addResource(newCIDFont.get()); |
| 1118 | SkAutoTUnref<SkPDFArray> descendantFonts(new SkPDFArray()); |
| 1119 | descendantFonts->append(new SkPDFObjRef(newCIDFont.get()))->unref(); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1120 | insert("DescendantFonts", descendantFonts.get()); |
| 1121 | |
| 1122 | populateToUnicodeTable(subset); |
| 1123 | |
| 1124 | SkDEBUGCODE(fPopulated = true); |
| 1125 | return true; |
| 1126 | } |
| 1127 | |
| 1128 | /////////////////////////////////////////////////////////////////////////////// |
| 1129 | // class SkPDFCIDFont |
| 1130 | /////////////////////////////////////////////////////////////////////////////// |
| 1131 | |
halcanary | fb747e2 | 2014-07-11 19:45:23 -0700 | [diff] [blame] | 1132 | SkPDFCIDFont::SkPDFCIDFont(const SkAdvancedTypefaceMetrics* info, |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1133 | SkTypeface* typeface, const SkPDFGlyphSet* subset) |
sugoi@google.com | e2e8113 | 2013-03-05 18:35:55 +0000 | [diff] [blame] | 1134 | : SkPDFFont(info, typeface, NULL) { |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1135 | populate(subset); |
| 1136 | } |
| 1137 | |
| 1138 | SkPDFCIDFont::~SkPDFCIDFont() {} |
| 1139 | |
| 1140 | bool SkPDFCIDFont::addFontDescriptor(int16_t defaultWidth, |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 1141 | const SkTDArray<uint32_t>* subset) { |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1142 | SkAutoTUnref<SkPDFDict> descriptor(new SkPDFDict("FontDescriptor")); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1143 | setFontDescriptor(descriptor.get()); |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1144 | addResource(descriptor.get()); |
vandebo | 0f9bad0 | 2014-06-19 11:05:39 -0700 | [diff] [blame] | 1145 | insert("FontDescriptor", new SkPDFObjRef(descriptor.get()))->unref(); |
| 1146 | if (!addCommonFontDescriptorEntries(defaultWidth)) { |
| 1147 | return false; |
| 1148 | } |
| 1149 | if (!canEmbed()) { |
| 1150 | return true; |
| 1151 | } |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1152 | |
| 1153 | switch (getType()) { |
| 1154 | case SkAdvancedTypefaceMetrics::kTrueType_Font: { |
vandebo | 0f9bad0 | 2014-06-19 11:05:39 -0700 | [diff] [blame] | 1155 | SkAutoTUnref<SkPDFStream> fontStream; |
| 1156 | size_t fontSize = 0; |
| 1157 | if (canSubset()) { |
| 1158 | SkPDFStream* rawStream = NULL; |
| 1159 | fontSize = get_subset_font_stream(fontInfo()->fFontName.c_str(), |
| 1160 | typeface(), |
| 1161 | *subset, |
| 1162 | &rawStream); |
| 1163 | fontStream.reset(rawStream); |
| 1164 | } else { |
| 1165 | int ttcIndex; |
| 1166 | SkAutoTUnref<SkStream> fontData( |
| 1167 | typeface()->openStream(&ttcIndex)); |
| 1168 | fontStream.reset(new SkPDFStream(fontData.get())); |
| 1169 | fontSize = fontData->getLength(); |
| 1170 | } |
vandebo@chromium.org | 1f16589 | 2011-07-26 02:11:41 +0000 | [diff] [blame] | 1171 | SkASSERT(fontSize); |
vandebo | 0f9bad0 | 2014-06-19 11:05:39 -0700 | [diff] [blame] | 1172 | SkASSERT(fontStream.get()); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1173 | addResource(fontStream.get()); |
| 1174 | |
vandebo@chromium.org | 1f16589 | 2011-07-26 02:11:41 +0000 | [diff] [blame] | 1175 | fontStream->insertInt("Length1", fontSize); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1176 | descriptor->insert("FontFile2", |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1177 | new SkPDFObjRef(fontStream.get()))->unref(); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1178 | break; |
| 1179 | } |
| 1180 | case SkAdvancedTypefaceMetrics::kCFF_Font: |
| 1181 | case SkAdvancedTypefaceMetrics::kType1CID_Font: { |
reed@google.com | fed86bd | 2013-03-14 15:04:57 +0000 | [diff] [blame] | 1182 | int ttcIndex; |
| 1183 | SkAutoTUnref<SkStream> fontData(typeface()->openStream(&ttcIndex)); |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1184 | SkAutoTUnref<SkPDFStream> fontStream( |
| 1185 | new SkPDFStream(fontData.get())); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1186 | addResource(fontStream.get()); |
| 1187 | |
| 1188 | if (getType() == SkAdvancedTypefaceMetrics::kCFF_Font) { |
| 1189 | fontStream->insertName("Subtype", "Type1C"); |
| 1190 | } else { |
| 1191 | fontStream->insertName("Subtype", "CIDFontType0c"); |
| 1192 | } |
| 1193 | descriptor->insert("FontFile3", |
| 1194 | new SkPDFObjRef(fontStream.get()))->unref(); |
| 1195 | break; |
| 1196 | } |
| 1197 | default: |
| 1198 | SkASSERT(false); |
| 1199 | } |
vandebo | 0f9bad0 | 2014-06-19 11:05:39 -0700 | [diff] [blame] | 1200 | return true; |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1201 | } |
| 1202 | |
| 1203 | bool SkPDFCIDFont::populate(const SkPDFGlyphSet* subset) { |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 1204 | // Generate new font metrics with advance info for true type fonts. |
| 1205 | if (fontInfo()->fType == SkAdvancedTypefaceMetrics::kTrueType_Font) { |
| 1206 | // Generate glyph id array. |
| 1207 | SkTDArray<uint32_t> glyphIDs; |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 1208 | if (subset) { |
commit-bot@chromium.org | 4da3bfc | 2013-12-11 23:54:31 +0000 | [diff] [blame] | 1209 | // Always include glyph 0. |
| 1210 | if (!subset->has(0)) { |
| 1211 | glyphIDs.push(0); |
| 1212 | } |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 1213 | subset->exportTo(&glyphIDs); |
| 1214 | } |
| 1215 | |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 1216 | SkAdvancedTypefaceMetrics::PerGlyphInfo info; |
| 1217 | info = SkAdvancedTypefaceMetrics::kGlyphNames_PerGlyphInfo; |
| 1218 | info = SkTBitOr<SkAdvancedTypefaceMetrics::PerGlyphInfo>( |
| 1219 | info, SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo); |
commit-bot@chromium.org | 4da3bfc | 2013-12-11 23:54:31 +0000 | [diff] [blame] | 1220 | uint32_t* glyphs = (glyphIDs.count() == 0) ? NULL : glyphIDs.begin(); |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 1221 | uint32_t glyphsCount = glyphs ? glyphIDs.count() : 0; |
halcanary | fb747e2 | 2014-07-11 19:45:23 -0700 | [diff] [blame] | 1222 | SkAutoTUnref<const SkAdvancedTypefaceMetrics> fontMetrics( |
reed@google.com | fed86bd | 2013-03-14 15:04:57 +0000 | [diff] [blame] | 1223 | typeface()->getAdvancedTypefaceMetrics(info, glyphs, glyphsCount)); |
vandebo@chromium.org | 37ad8fb | 2011-08-18 02:38:50 +0000 | [diff] [blame] | 1224 | setFontInfo(fontMetrics.get()); |
| 1225 | addFontDescriptor(0, &glyphIDs); |
| 1226 | } else { |
| 1227 | // Other CID fonts |
| 1228 | addFontDescriptor(0, NULL); |
| 1229 | } |
| 1230 | |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1231 | insertName("BaseFont", fontInfo()->fFontName); |
| 1232 | |
| 1233 | if (getType() == SkAdvancedTypefaceMetrics::kType1CID_Font) { |
reed@google.com | c789cf1 | 2011-07-20 12:14:33 +0000 | [diff] [blame] | 1234 | insertName("Subtype", "CIDFontType0"); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1235 | } else if (getType() == SkAdvancedTypefaceMetrics::kTrueType_Font) { |
reed@google.com | c789cf1 | 2011-07-20 12:14:33 +0000 | [diff] [blame] | 1236 | insertName("Subtype", "CIDFontType2"); |
| 1237 | insertName("CIDToGIDMap", "Identity"); |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 1238 | } else { |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1239 | SkASSERT(false); |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 1240 | } |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1241 | |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1242 | SkAutoTUnref<SkPDFDict> sysInfo(new SkPDFDict); |
vandebo@chromium.org | f7c1576 | 2011-02-01 22:19:44 +0000 | [diff] [blame] | 1243 | sysInfo->insert("Registry", new SkPDFString("Adobe"))->unref(); |
| 1244 | sysInfo->insert("Ordering", new SkPDFString("Identity"))->unref(); |
reed@google.com | c789cf1 | 2011-07-20 12:14:33 +0000 | [diff] [blame] | 1245 | sysInfo->insertInt("Supplement", 0); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1246 | insert("CIDSystemInfo", sysInfo.get()); |
| 1247 | |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1248 | if (fontInfo()->fGlyphWidths.get()) { |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 1249 | int16_t defaultWidth = 0; |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1250 | SkAutoTUnref<SkPDFArray> widths( |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1251 | composeAdvanceData(fontInfo()->fGlyphWidths.get(), |
| 1252 | fontInfo()->fEmSize, &appendWidth, |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1253 | &defaultWidth)); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1254 | if (widths->size()) |
| 1255 | insert("W", widths.get()); |
| 1256 | if (defaultWidth != 0) { |
reed@google.com | c789cf1 | 2011-07-20 12:14:33 +0000 | [diff] [blame] | 1257 | insertScalar("DW", scaleFromFontUnits(defaultWidth, |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1258 | fontInfo()->fEmSize)); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1259 | } |
| 1260 | } |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1261 | if (fontInfo()->fVerticalMetrics.get()) { |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 1262 | struct SkAdvancedTypefaceMetrics::VerticalMetric defaultAdvance; |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1263 | defaultAdvance.fVerticalAdvance = 0; |
| 1264 | defaultAdvance.fOriginXDisp = 0; |
| 1265 | defaultAdvance.fOriginYDisp = 0; |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1266 | SkAutoTUnref<SkPDFArray> advances( |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1267 | composeAdvanceData(fontInfo()->fVerticalMetrics.get(), |
| 1268 | fontInfo()->fEmSize, &appendVerticalAdvance, |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1269 | &defaultAdvance)); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1270 | if (advances->size()) |
| 1271 | insert("W2", advances.get()); |
| 1272 | if (defaultAdvance.fVerticalAdvance || |
| 1273 | defaultAdvance.fOriginXDisp || |
| 1274 | defaultAdvance.fOriginYDisp) { |
vandebo@chromium.org | f7c1576 | 2011-02-01 22:19:44 +0000 | [diff] [blame] | 1275 | insert("DW2", appendVerticalAdvance(defaultAdvance, |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1276 | fontInfo()->fEmSize, |
vandebo@chromium.org | f7c1576 | 2011-02-01 22:19:44 +0000 | [diff] [blame] | 1277 | new SkPDFArray))->unref(); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1278 | } |
| 1279 | } |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1280 | |
| 1281 | return true; |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1282 | } |
| 1283 | |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1284 | /////////////////////////////////////////////////////////////////////////////// |
| 1285 | // class SkPDFType1Font |
| 1286 | /////////////////////////////////////////////////////////////////////////////// |
| 1287 | |
halcanary | fb747e2 | 2014-07-11 19:45:23 -0700 | [diff] [blame] | 1288 | SkPDFType1Font::SkPDFType1Font(const SkAdvancedTypefaceMetrics* info, |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1289 | SkTypeface* typeface, |
| 1290 | uint16_t glyphID, |
| 1291 | SkPDFDict* relatedFontDescriptor) |
sugoi@google.com | e2e8113 | 2013-03-05 18:35:55 +0000 | [diff] [blame] | 1292 | : SkPDFFont(info, typeface, relatedFontDescriptor) { |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1293 | populate(glyphID); |
| 1294 | } |
| 1295 | |
| 1296 | SkPDFType1Font::~SkPDFType1Font() {} |
| 1297 | |
| 1298 | bool SkPDFType1Font::addFontDescriptor(int16_t defaultWidth) { |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1299 | if (getFontDescriptor() != NULL) { |
| 1300 | SkPDFDict* descriptor = getFontDescriptor(); |
| 1301 | addResource(descriptor); |
| 1302 | insert("FontDescriptor", new SkPDFObjRef(descriptor))->unref(); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1303 | return true; |
| 1304 | } |
| 1305 | |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1306 | SkAutoTUnref<SkPDFDict> descriptor(new SkPDFDict("FontDescriptor")); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1307 | setFontDescriptor(descriptor.get()); |
| 1308 | |
reed@google.com | fed86bd | 2013-03-14 15:04:57 +0000 | [diff] [blame] | 1309 | int ttcIndex; |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1310 | size_t header SK_INIT_TO_AVOID_WARNING; |
| 1311 | size_t data SK_INIT_TO_AVOID_WARNING; |
| 1312 | size_t trailer SK_INIT_TO_AVOID_WARNING; |
reed@google.com | fed86bd | 2013-03-14 15:04:57 +0000 | [diff] [blame] | 1313 | SkAutoTUnref<SkStream> rawFontData(typeface()->openStream(&ttcIndex)); |
djsollen | 7ba2828 | 2014-08-28 12:34:41 -0700 | [diff] [blame] | 1314 | SkAutoTUnref<SkData> fontData(handle_type1_stream(rawFontData.get(), &header, |
| 1315 | &data, &trailer)); |
| 1316 | if (fontData.get() == NULL) { |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1317 | return false; |
| 1318 | } |
vandebo | 0f9bad0 | 2014-06-19 11:05:39 -0700 | [diff] [blame] | 1319 | if (canEmbed()) { |
djsollen | 7ba2828 | 2014-08-28 12:34:41 -0700 | [diff] [blame] | 1320 | SkAutoTUnref<SkPDFStream> fontStream(new SkPDFStream(fontData.get())); |
vandebo | 0f9bad0 | 2014-06-19 11:05:39 -0700 | [diff] [blame] | 1321 | addResource(fontStream.get()); |
| 1322 | fontStream->insertInt("Length1", header); |
| 1323 | fontStream->insertInt("Length2", data); |
| 1324 | fontStream->insertInt("Length3", trailer); |
| 1325 | descriptor->insert("FontFile", |
| 1326 | new SkPDFObjRef(fontStream.get()))->unref(); |
| 1327 | } |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1328 | |
| 1329 | addResource(descriptor.get()); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1330 | insert("FontDescriptor", new SkPDFObjRef(descriptor.get()))->unref(); |
| 1331 | |
| 1332 | return addCommonFontDescriptorEntries(defaultWidth); |
| 1333 | } |
| 1334 | |
| 1335 | bool SkPDFType1Font::populate(int16_t glyphID) { |
| 1336 | SkASSERT(!fontInfo()->fVerticalMetrics.get()); |
| 1337 | SkASSERT(fontInfo()->fGlyphWidths.get()); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1338 | |
vandebo@chromium.org | f77e27d | 2011-03-10 22:50:28 +0000 | [diff] [blame] | 1339 | adjustGlyphRangeForSingleByteEncoding(glyphID); |
| 1340 | |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 1341 | int16_t defaultWidth = 0; |
| 1342 | const SkAdvancedTypefaceMetrics::WidthRange* widthRangeEntry = NULL; |
| 1343 | const SkAdvancedTypefaceMetrics::WidthRange* widthEntry; |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1344 | for (widthEntry = fontInfo()->fGlyphWidths.get(); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1345 | widthEntry != NULL; |
| 1346 | widthEntry = widthEntry->fNext.get()) { |
| 1347 | switch (widthEntry->fType) { |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 1348 | case SkAdvancedTypefaceMetrics::WidthRange::kDefault: |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1349 | defaultWidth = widthEntry->fAdvance[0]; |
| 1350 | break; |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 1351 | case SkAdvancedTypefaceMetrics::WidthRange::kRun: |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1352 | SkASSERT(false); |
| 1353 | break; |
vandebo@chromium.org | c48b2b3 | 2011-02-02 02:11:22 +0000 | [diff] [blame] | 1354 | case SkAdvancedTypefaceMetrics::WidthRange::kRange: |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1355 | SkASSERT(widthRangeEntry == NULL); |
| 1356 | widthRangeEntry = widthEntry; |
| 1357 | break; |
| 1358 | } |
| 1359 | } |
| 1360 | |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 1361 | if (!addFontDescriptor(defaultWidth)) { |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1362 | return false; |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 1363 | } |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1364 | |
reed@google.com | c789cf1 | 2011-07-20 12:14:33 +0000 | [diff] [blame] | 1365 | insertName("Subtype", "Type1"); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1366 | insertName("BaseFont", fontInfo()->fFontName); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 1367 | |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 1368 | addWidthInfoFromRange(defaultWidth, widthRangeEntry); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1369 | |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1370 | SkAutoTUnref<SkPDFDict> encoding(new SkPDFDict("Encoding")); |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 1371 | insert("Encoding", encoding.get()); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1372 | |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1373 | SkAutoTUnref<SkPDFArray> encDiffs(new SkPDFArray); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1374 | encoding->insert("Differences", encDiffs.get()); |
| 1375 | |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1376 | encDiffs->reserve(lastGlyphID() - firstGlyphID() + 2); |
reed@google.com | c789cf1 | 2011-07-20 12:14:33 +0000 | [diff] [blame] | 1377 | encDiffs->appendInt(1); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1378 | for (int gID = firstGlyphID(); gID <= lastGlyphID(); gID++) { |
| 1379 | encDiffs->appendName(fontInfo()->fGlyphNames->get()[gID].c_str()); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1380 | } |
| 1381 | |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1382 | return true; |
vandebo@chromium.org | 28be72b | 2010-11-11 21:37:00 +0000 | [diff] [blame] | 1383 | } |
| 1384 | |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1385 | void SkPDFType1Font::addWidthInfoFromRange( |
| 1386 | int16_t defaultWidth, |
| 1387 | const SkAdvancedTypefaceMetrics::WidthRange* widthRangeEntry) { |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1388 | SkAutoTUnref<SkPDFArray> widthArray(new SkPDFArray()); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1389 | int firstChar = 0; |
| 1390 | if (widthRangeEntry) { |
| 1391 | const uint16_t emSize = fontInfo()->fEmSize; |
| 1392 | int startIndex = firstGlyphID() - widthRangeEntry->fStartId; |
| 1393 | int endIndex = startIndex + lastGlyphID() - firstGlyphID() + 1; |
| 1394 | if (startIndex < 0) |
| 1395 | startIndex = 0; |
| 1396 | if (endIndex > widthRangeEntry->fAdvance.count()) |
| 1397 | endIndex = widthRangeEntry->fAdvance.count(); |
| 1398 | if (widthRangeEntry->fStartId == 0) { |
| 1399 | appendWidth(widthRangeEntry->fAdvance[0], emSize, widthArray.get()); |
| 1400 | } else { |
| 1401 | firstChar = startIndex + widthRangeEntry->fStartId; |
| 1402 | } |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 1403 | for (int i = startIndex; i < endIndex; i++) { |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1404 | appendWidth(widthRangeEntry->fAdvance[i], emSize, widthArray.get()); |
ctguil@chromium.org | 769fa6a | 2011-08-20 00:36:18 +0000 | [diff] [blame] | 1405 | } |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1406 | } else { |
| 1407 | appendWidth(defaultWidth, 1000, widthArray.get()); |
| 1408 | } |
| 1409 | insertInt("FirstChar", firstChar); |
| 1410 | insertInt("LastChar", firstChar + widthArray->size() - 1); |
| 1411 | insert("Widths", widthArray.get()); |
| 1412 | } |
| 1413 | |
| 1414 | /////////////////////////////////////////////////////////////////////////////// |
| 1415 | // class SkPDFType3Font |
| 1416 | /////////////////////////////////////////////////////////////////////////////// |
| 1417 | |
halcanary | fb747e2 | 2014-07-11 19:45:23 -0700 | [diff] [blame] | 1418 | SkPDFType3Font::SkPDFType3Font(const SkAdvancedTypefaceMetrics* info, |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1419 | SkTypeface* typeface, |
sugoi@google.com | e2e8113 | 2013-03-05 18:35:55 +0000 | [diff] [blame] | 1420 | uint16_t glyphID) |
| 1421 | : SkPDFFont(info, typeface, NULL) { |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1422 | populate(glyphID); |
| 1423 | } |
| 1424 | |
| 1425 | SkPDFType3Font::~SkPDFType3Font() {} |
| 1426 | |
| 1427 | bool SkPDFType3Font::populate(int16_t glyphID) { |
vandebo@chromium.org | f77e27d | 2011-03-10 22:50:28 +0000 | [diff] [blame] | 1428 | SkPaint paint; |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1429 | paint.setTypeface(typeface()); |
vandebo@chromium.org | f77e27d | 2011-03-10 22:50:28 +0000 | [diff] [blame] | 1430 | paint.setTextSize(1000); |
bungeman@google.com | 532470f | 2013-01-22 19:25:14 +0000 | [diff] [blame] | 1431 | SkAutoGlyphCache autoCache(paint, NULL, NULL); |
vandebo@chromium.org | f77e27d | 2011-03-10 22:50:28 +0000 | [diff] [blame] | 1432 | SkGlyphCache* cache = autoCache.getCache(); |
| 1433 | // If fLastGlyphID isn't set (because there is not fFontInfo), look it up. |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1434 | if (lastGlyphID() == 0) { |
| 1435 | setLastGlyphID(cache->getGlyphCount() - 1); |
vandebo@chromium.org | f77e27d | 2011-03-10 22:50:28 +0000 | [diff] [blame] | 1436 | } |
| 1437 | |
| 1438 | adjustGlyphRangeForSingleByteEncoding(glyphID); |
| 1439 | |
reed@google.com | c789cf1 | 2011-07-20 12:14:33 +0000 | [diff] [blame] | 1440 | insertName("Subtype", "Type3"); |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 1441 | // Flip about the x-axis and scale by 1/1000. |
| 1442 | SkMatrix fontMatrix; |
| 1443 | fontMatrix.setScale(SkScalarInvert(1000), -SkScalarInvert(1000)); |
| 1444 | insert("FontMatrix", SkPDFUtils::MatrixToArray(fontMatrix))->unref(); |
| 1445 | |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1446 | SkAutoTUnref<SkPDFDict> charProcs(new SkPDFDict); |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 1447 | insert("CharProcs", charProcs.get()); |
| 1448 | |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1449 | SkAutoTUnref<SkPDFDict> encoding(new SkPDFDict("Encoding")); |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 1450 | insert("Encoding", encoding.get()); |
| 1451 | |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1452 | SkAutoTUnref<SkPDFArray> encDiffs(new SkPDFArray); |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 1453 | encoding->insert("Differences", encDiffs.get()); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1454 | encDiffs->reserve(lastGlyphID() - firstGlyphID() + 2); |
reed@google.com | c789cf1 | 2011-07-20 12:14:33 +0000 | [diff] [blame] | 1455 | encDiffs->appendInt(1); |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 1456 | |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1457 | SkAutoTUnref<SkPDFArray> widthArray(new SkPDFArray()); |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 1458 | |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 1459 | SkIRect bbox = SkIRect::MakeEmpty(); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1460 | for (int gID = firstGlyphID(); gID <= lastGlyphID(); gID++) { |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 1461 | SkString characterName; |
| 1462 | characterName.printf("gid%d", gID); |
reed@google.com | c789cf1 | 2011-07-20 12:14:33 +0000 | [diff] [blame] | 1463 | encDiffs->appendName(characterName.c_str()); |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 1464 | |
reed@google.com | ce11b26 | 2011-03-21 21:25:35 +0000 | [diff] [blame] | 1465 | const SkGlyph& glyph = cache->getGlyphIDMetrics(gID); |
reed@google.com | c789cf1 | 2011-07-20 12:14:33 +0000 | [diff] [blame] | 1466 | widthArray->appendScalar(SkFixedToScalar(glyph.fAdvanceX)); |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 1467 | SkIRect glyphBBox = SkIRect::MakeXYWH(glyph.fLeft, glyph.fTop, |
| 1468 | glyph.fWidth, glyph.fHeight); |
| 1469 | bbox.join(glyphBBox); |
| 1470 | |
vandebo@chromium.org | cae5fba | 2011-03-28 19:03:50 +0000 | [diff] [blame] | 1471 | SkDynamicMemoryWStream content; |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 1472 | setGlyphWidthAndBoundingBox(SkFixedToScalar(glyph.fAdvanceX), glyphBBox, |
| 1473 | &content); |
| 1474 | const SkPath* path = cache->findPath(glyph); |
| 1475 | if (path) { |
vandebo@chromium.org | 683001c | 2012-05-09 17:17:51 +0000 | [diff] [blame] | 1476 | SkPDFUtils::EmitPath(*path, paint.getStyle(), &content); |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 1477 | SkPDFUtils::PaintPath(paint.getStyle(), path->getFillType(), |
| 1478 | &content); |
| 1479 | } |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1480 | SkAutoTUnref<SkMemoryStream> glyphStream(new SkMemoryStream()); |
reed@google.com | 8a85d0c | 2011-06-24 19:12:12 +0000 | [diff] [blame] | 1481 | glyphStream->setData(content.copyToData())->unref(); |
vandebo@chromium.org | cae5fba | 2011-03-28 19:03:50 +0000 | [diff] [blame] | 1482 | |
vandebo@chromium.org | d96d17b | 2013-01-04 19:31:24 +0000 | [diff] [blame] | 1483 | SkAutoTUnref<SkPDFStream> glyphDescription( |
| 1484 | new SkPDFStream(glyphStream.get())); |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1485 | addResource(glyphDescription.get()); |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 1486 | charProcs->insert(characterName.c_str(), |
| 1487 | new SkPDFObjRef(glyphDescription.get()))->unref(); |
| 1488 | } |
| 1489 | |
| 1490 | insert("FontBBox", makeFontBBox(bbox, 1000))->unref(); |
commit-bot@chromium.org | 1236d8e | 2013-12-11 18:47:11 +0000 | [diff] [blame] | 1491 | insertInt("FirstChar", 1); |
| 1492 | insertInt("LastChar", lastGlyphID() - firstGlyphID() + 1); |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 1493 | insert("Widths", widthArray.get()); |
reed@google.com | c789cf1 | 2011-07-20 12:14:33 +0000 | [diff] [blame] | 1494 | insertName("CIDToGIDMap", "Identity"); |
ctguil@chromium.org | 9db86bb | 2011-03-04 21:43:27 +0000 | [diff] [blame] | 1495 | |
vandebo@chromium.org | 9859428 | 2011-07-25 22:34:12 +0000 | [diff] [blame] | 1496 | populateToUnicodeTable(NULL); |
vandebo@chromium.org | 2a22e10 | 2011-01-25 21:01:34 +0000 | [diff] [blame] | 1497 | return true; |
| 1498 | } |