Merge branch 'master' into font

This commit is contained in:
sbarman 2011-07-21 17:28:16 -07:00
commit 3eccfa3cc0
2 changed files with 553 additions and 440 deletions

246
crypto.js
View File

@ -144,110 +144,129 @@ var NullCipher = (function() {
var AES128Cipher = (function() {
var rcon = new Uint8Array([
0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a,
0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39,
0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a,
0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8,
0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef,
0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc,
0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b,
0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3,
0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94,
0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20,
0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35,
0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f,
0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04,
0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63,
0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd,
0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d]);
0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c,
0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a,
0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd,
0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a,
0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6,
0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72,
0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc,
0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02, 0x04, 0x08, 0x10,
0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e,
0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5,
0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94,
0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb, 0x8d, 0x01, 0x02,
0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c, 0xd8, 0xab, 0x4d,
0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a, 0xd4, 0xb3, 0x7d,
0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd, 0x61, 0xc2, 0x9f,
0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a, 0x74, 0xe8, 0xcb,
0x8d, 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36, 0x6c,
0xd8, 0xab, 0x4d, 0x9a, 0x2f, 0x5e, 0xbc, 0x63, 0xc6, 0x97, 0x35, 0x6a,
0xd4, 0xb3, 0x7d, 0xfa, 0xef, 0xc5, 0x91, 0x39, 0x72, 0xe4, 0xd3, 0xbd,
0x61, 0xc2, 0x9f, 0x25, 0x4a, 0x94, 0x33, 0x66, 0xcc, 0x83, 0x1d, 0x3a,
0x74, 0xe8, 0xcb, 0x8d]);
var s = new Uint8Array([
0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5, 0x30, 0x01, 0x67, 0x2B, 0xFE, 0xD7, 0xAB, 0x76,
0xCA, 0x82, 0xC9, 0x7D, 0xFA, 0x59, 0x47, 0xF0, 0xAD, 0xD4, 0xA2, 0xAF, 0x9C, 0xA4, 0x72, 0xC0,
0xB7, 0xFD, 0x93, 0x26, 0x36, 0x3F, 0xF7, 0xCC, 0x34, 0xA5, 0xE5, 0xF1, 0x71, 0xD8, 0x31, 0x15,
0x04, 0xC7, 0x23, 0xC3, 0x18, 0x96, 0x05, 0x9A, 0x07, 0x12, 0x80, 0xE2, 0xEB, 0x27, 0xB2, 0x75,
0x09, 0x83, 0x2C, 0x1A, 0x1B, 0x6E, 0x5A, 0xA0, 0x52, 0x3B, 0xD6, 0xB3, 0x29, 0xE3, 0x2F, 0x84,
0x53, 0xD1, 0x00, 0xED, 0x20, 0xFC, 0xB1, 0x5B, 0x6A, 0xCB, 0xBE, 0x39, 0x4A, 0x4C, 0x58, 0xCF,
0xD0, 0xEF, 0xAA, 0xFB, 0x43, 0x4D, 0x33, 0x85, 0x45, 0xF9, 0x02, 0x7F, 0x50, 0x3C, 0x9F, 0xA8,
0x51, 0xA3, 0x40, 0x8F, 0x92, 0x9D, 0x38, 0xF5, 0xBC, 0xB6, 0xDA, 0x21, 0x10, 0xFF, 0xF3, 0xD2,
0xCD, 0x0C, 0x13, 0xEC, 0x5F, 0x97, 0x44, 0x17, 0xC4, 0xA7, 0x7E, 0x3D, 0x64, 0x5D, 0x19, 0x73,
0x60, 0x81, 0x4F, 0xDC, 0x22, 0x2A, 0x90, 0x88, 0x46, 0xEE, 0xB8, 0x14, 0xDE, 0x5E, 0x0B, 0xDB,
0xE0, 0x32, 0x3A, 0x0A, 0x49, 0x06, 0x24, 0x5C, 0xC2, 0xD3, 0xAC, 0x62, 0x91, 0x95, 0xE4, 0x79,
0xE7, 0xC8, 0x37, 0x6D, 0x8D, 0xD5, 0x4E, 0xA9, 0x6C, 0x56, 0xF4, 0xEA, 0x65, 0x7A, 0xAE, 0x08,
0xBA, 0x78, 0x25, 0x2E, 0x1C, 0xA6, 0xB4, 0xC6, 0xE8, 0xDD, 0x74, 0x1F, 0x4B, 0xBD, 0x8B, 0x8A,
0x70, 0x3E, 0xB5, 0x66, 0x48, 0x03, 0xF6, 0x0E, 0x61, 0x35, 0x57, 0xB9, 0x86, 0xC1, 0x1D, 0x9E,
0xE1, 0xF8, 0x98, 0x11, 0x69, 0xD9, 0x8E, 0x94, 0x9B, 0x1E, 0x87, 0xE9, 0xCE, 0x55, 0x28, 0xDF,
0x8C, 0xA1, 0x89, 0x0D, 0xBF, 0xE6, 0x42, 0x68, 0x41, 0x99, 0x2D, 0x0F, 0xB0, 0x54, 0xBB, 0x16]);
0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b,
0xfe, 0xd7, 0xab, 0x76, 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0,
0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0, 0xb7, 0xfd, 0x93, 0x26,
0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15,
0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2,
0xeb, 0x27, 0xb2, 0x75, 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0,
0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84, 0x53, 0xd1, 0x00, 0xed,
0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf,
0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f,
0x50, 0x3c, 0x9f, 0xa8, 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5,
0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2, 0xcd, 0x0c, 0x13, 0xec,
0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73,
0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14,
0xde, 0x5e, 0x0b, 0xdb, 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c,
0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79, 0xe7, 0xc8, 0x37, 0x6d,
0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08,
0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f,
0x4b, 0xbd, 0x8b, 0x8a, 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e,
0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e, 0xe1, 0xf8, 0x98, 0x11,
0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf,
0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f,
0xb0, 0x54, 0xbb, 0x16]);
var inv_s = new Uint8Array([
0x52, 0x09, 0x6A, 0xD5, 0x30, 0x36, 0xA5, 0x38, 0xBF, 0x40, 0xA3, 0x9E, 0x81, 0xF3, 0xD7, 0xFB,
0x7C, 0xE3, 0x39, 0x82, 0x9B, 0x2F, 0xFF, 0x87, 0x34, 0x8E, 0x43, 0x44, 0xC4, 0xDE, 0xE9, 0xCB,
0x54, 0x7B, 0x94, 0x32, 0xA6, 0xC2, 0x23, 0x3D, 0xEE, 0x4C, 0x95, 0x0B, 0x42, 0xFA, 0xC3, 0x4E,
0x08, 0x2E, 0xA1, 0x66, 0x28, 0xD9, 0x24, 0xB2, 0x76, 0x5B, 0xA2, 0x49, 0x6D, 0x8B, 0xD1, 0x25,
0x72, 0xF8, 0xF6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xD4, 0xA4, 0x5C, 0xCC, 0x5D, 0x65, 0xB6, 0x92,
0x6C, 0x70, 0x48, 0x50, 0xFD, 0xED, 0xB9, 0xDA, 0x5E, 0x15, 0x46, 0x57, 0xA7, 0x8D, 0x9D, 0x84,
0x90, 0xD8, 0xAB, 0x00, 0x8C, 0xBC, 0xD3, 0x0A, 0xF7, 0xE4, 0x58, 0x05, 0xB8, 0xB3, 0x45, 0x06,
0xD0, 0x2C, 0x1E, 0x8F, 0xCA, 0x3F, 0x0F, 0x02, 0xC1, 0xAF, 0xBD, 0x03, 0x01, 0x13, 0x8A, 0x6B,
0x3A, 0x91, 0x11, 0x41, 0x4F, 0x67, 0xDC, 0xEA, 0x97, 0xF2, 0xCF, 0xCE, 0xF0, 0xB4, 0xE6, 0x73,
0x96, 0xAC, 0x74, 0x22, 0xE7, 0xAD, 0x35, 0x85, 0xE2, 0xF9, 0x37, 0xE8, 0x1C, 0x75, 0xDF, 0x6E,
0x47, 0xF1, 0x1A, 0x71, 0x1D, 0x29, 0xC5, 0x89, 0x6F, 0xB7, 0x62, 0x0E, 0xAA, 0x18, 0xBE, 0x1B,
0xFC, 0x56, 0x3E, 0x4B, 0xC6, 0xD2, 0x79, 0x20, 0x9A, 0xDB, 0xC0, 0xFE, 0x78, 0xCD, 0x5A, 0xF4,
0x1F, 0xDD, 0xA8, 0x33, 0x88, 0x07, 0xC7, 0x31, 0xB1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xEC, 0x5F,
0x60, 0x51, 0x7F, 0xA9, 0x19, 0xB5, 0x4A, 0x0D, 0x2D, 0xE5, 0x7A, 0x9F, 0x93, 0xC9, 0x9C, 0xEF,
0xA0, 0xE0, 0x3B, 0x4D, 0xAE, 0x2A, 0xF5, 0xB0, 0xC8, 0xEB, 0xBB, 0x3C, 0x83, 0x53, 0x99, 0x61,
0x17, 0x2B, 0x04, 0x7E, 0xBA, 0x77, 0xD6, 0x26, 0xE1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0C, 0x7D]);
0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e,
0x81, 0xf3, 0xd7, 0xfb, 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87,
0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb, 0x54, 0x7b, 0x94, 0x32,
0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e,
0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49,
0x6d, 0x8b, 0xd1, 0x25, 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16,
0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92, 0x6c, 0x70, 0x48, 0x50,
0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84,
0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05,
0xb8, 0xb3, 0x45, 0x06, 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02,
0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b, 0x3a, 0x91, 0x11, 0x41,
0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73,
0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8,
0x1c, 0x75, 0xdf, 0x6e, 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89,
0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b, 0xfc, 0x56, 0x3e, 0x4b,
0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4,
0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59,
0x27, 0x80, 0xec, 0x5f, 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d,
0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef, 0xa0, 0xe0, 0x3b, 0x4d,
0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61,
0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63,
0x55, 0x21, 0x0c, 0x7d]);
var mix = new Uint32Array([
0x0, 0xe090d0b, 0x1c121a16, 0x121b171d, 0x3824342c, 0x362d3927, 0x24362e3a,
0x2a3f2331, 0x70486858, 0x7e416553, 0x6c5a724e, 0x62537f45, 0x486c5c74,
0x4665517f, 0x547e4662, 0x5a774b69, 0xe090d0b0, 0xee99ddbb, 0xfc82caa6,
0xf28bc7ad, 0xd8b4e49c, 0xd6bde997, 0xc4a6fe8a, 0xcaaff381, 0x90d8b8e8,
0x9ed1b5e3, 0x8ccaa2fe, 0x82c3aff5, 0xa8fc8cc4, 0xa6f581cf, 0xb4ee96d2,
0xbae79bd9, 0xdb3bbb7b, 0xd532b670, 0xc729a16d, 0xc920ac66, 0xe31f8f57,
0xed16825c, 0xff0d9541, 0xf104984a, 0xab73d323, 0xa57ade28, 0xb761c935,
0xb968c43e, 0x9357e70f, 0x9d5eea04, 0x8f45fd19, 0x814cf012, 0x3bab6bcb,
0x35a266c0, 0x27b971dd, 0x29b07cd6, 0x38f5fe7, 0xd8652ec, 0x1f9d45f1,
0x119448fa, 0x4be30393, 0x45ea0e98, 0x57f11985, 0x59f8148e, 0x73c737bf,
0x7dce3ab4, 0x6fd52da9, 0x61dc20a2, 0xad766df6, 0xa37f60fd, 0xb16477e0,
0xbf6d7aeb, 0x955259da, 0x9b5b54d1, 0x894043cc, 0x87494ec7, 0xdd3e05ae,
0xd33708a5, 0xc12c1fb8, 0xcf2512b3, 0xe51a3182, 0xeb133c89, 0xf9082b94,
0xf701269f, 0x4de6bd46, 0x43efb04d, 0x51f4a750, 0x5ffdaa5b, 0x75c2896a,
0x7bcb8461, 0x69d0937c, 0x67d99e77, 0x3daed51e, 0x33a7d815, 0x21bccf08,
0x2fb5c203, 0x58ae132, 0xb83ec39, 0x1998fb24, 0x1791f62f, 0x764dd68d,
0x7844db86, 0x6a5fcc9b, 0x6456c190, 0x4e69e2a1, 0x4060efaa, 0x527bf8b7,
0x5c72f5bc, 0x605bed5, 0x80cb3de, 0x1a17a4c3, 0x141ea9c8, 0x3e218af9,
0x302887f2, 0x223390ef, 0x2c3a9de4, 0x96dd063d, 0x98d40b36, 0x8acf1c2b,
0x84c61120, 0xaef93211, 0xa0f03f1a, 0xb2eb2807, 0xbce2250c, 0xe6956e65,
0xe89c636e, 0xfa877473, 0xf48e7978, 0xdeb15a49, 0xd0b85742, 0xc2a3405f,
0xccaa4d54, 0x41ecdaf7, 0x4fe5d7fc, 0x5dfec0e1, 0x53f7cdea, 0x79c8eedb,
0x77c1e3d0, 0x65daf4cd, 0x6bd3f9c6, 0x31a4b2af, 0x3fadbfa4, 0x2db6a8b9,
0x23bfa5b2, 0x9808683, 0x7898b88, 0x15929c95, 0x1b9b919e, 0xa17c0a47,
0xaf75074c, 0xbd6e1051, 0xb3671d5a, 0x99583e6b, 0x97513360, 0x854a247d,
0x8b432976, 0xd134621f, 0xdf3d6f14, 0xcd267809, 0xc32f7502, 0xe9105633,
0xe7195b38, 0xf5024c25, 0xfb0b412e, 0x9ad7618c, 0x94de6c87, 0x86c57b9a,
0x88cc7691, 0xa2f355a0, 0xacfa58ab, 0xbee14fb6, 0xb0e842bd, 0xea9f09d4,
0xe49604df, 0xf68d13c2, 0xf8841ec9, 0xd2bb3df8, 0xdcb230f3, 0xcea927ee,
0xc0a02ae5, 0x7a47b13c, 0x744ebc37, 0x6655ab2a, 0x685ca621, 0x42638510,
0x4c6a881b, 0x5e719f06, 0x5078920d, 0xa0fd964, 0x406d46f, 0x161dc372,
0x1814ce79, 0x322bed48, 0x3c22e043, 0x2e39f75e, 0x2030fa55, 0xec9ab701,
0xe293ba0a, 0xf088ad17, 0xfe81a01c, 0xd4be832d, 0xdab78e26, 0xc8ac993b,
0xc6a59430, 0x9cd2df59, 0x92dbd252, 0x80c0c54f, 0x8ec9c844, 0xa4f6eb75,
0xaaffe67e, 0xb8e4f163, 0xb6edfc68, 0xc0a67b1, 0x2036aba, 0x10187da7,
0x1e1170ac, 0x342e539d, 0x3a275e96, 0x283c498b, 0x26354480, 0x7c420fe9,
0x724b02e2, 0x605015ff, 0x6e5918f4, 0x44663bc5, 0x4a6f36ce, 0x587421d3,
0x567d2cd8, 0x37a10c7a, 0x39a80171, 0x2bb3166c, 0x25ba1b67, 0xf853856,
0x18c355d, 0x13972240, 0x1d9e2f4b, 0x47e96422, 0x49e06929, 0x5bfb7e34,
0x55f2733f, 0x7fcd500e, 0x71c45d05, 0x63df4a18, 0x6dd64713, 0xd731dcca,
0xd938d1c1, 0xcb23c6dc, 0xc52acbd7, 0xef15e8e6, 0xe11ce5ed, 0xf307f2f0,
0xfd0efffb, 0xa779b492, 0xa970b999, 0xbb6bae84, 0xb562a38f, 0x9f5d80be,
0x91548db5, 0x834f9aa8, 0x8d4697a3]);
0x00000000, 0x0e090d0b, 0x1c121a16, 0x121b171d, 0x3824342c, 0x362d3927,
0x24362e3a, 0x2a3f2331, 0x70486858, 0x7e416553, 0x6c5a724e, 0x62537f45,
0x486c5c74, 0x4665517f, 0x547e4662, 0x5a774b69, 0xe090d0b0, 0xee99ddbb,
0xfc82caa6, 0xf28bc7ad, 0xd8b4e49c, 0xd6bde997, 0xc4a6fe8a, 0xcaaff381,
0x90d8b8e8, 0x9ed1b5e3, 0x8ccaa2fe, 0x82c3aff5, 0xa8fc8cc4, 0xa6f581cf,
0xb4ee96d2, 0xbae79bd9, 0xdb3bbb7b, 0xd532b670, 0xc729a16d, 0xc920ac66,
0xe31f8f57, 0xed16825c, 0xff0d9541, 0xf104984a, 0xab73d323, 0xa57ade28,
0xb761c935, 0xb968c43e, 0x9357e70f, 0x9d5eea04, 0x8f45fd19, 0x814cf012,
0x3bab6bcb, 0x35a266c0, 0x27b971dd, 0x29b07cd6, 0x038f5fe7, 0x0d8652ec,
0x1f9d45f1, 0x119448fa, 0x4be30393, 0x45ea0e98, 0x57f11985, 0x59f8148e,
0x73c737bf, 0x7dce3ab4, 0x6fd52da9, 0x61dc20a2, 0xad766df6, 0xa37f60fd,
0xb16477e0, 0xbf6d7aeb, 0x955259da, 0x9b5b54d1, 0x894043cc, 0x87494ec7,
0xdd3e05ae, 0xd33708a5, 0xc12c1fb8, 0xcf2512b3, 0xe51a3182, 0xeb133c89,
0xf9082b94, 0xf701269f, 0x4de6bd46, 0x43efb04d, 0x51f4a750, 0x5ffdaa5b,
0x75c2896a, 0x7bcb8461, 0x69d0937c, 0x67d99e77, 0x3daed51e, 0x33a7d815,
0x21bccf08, 0x2fb5c203, 0x058ae132, 0x0b83ec39, 0x1998fb24, 0x1791f62f,
0x764dd68d, 0x7844db86, 0x6a5fcc9b, 0x6456c190, 0x4e69e2a1, 0x4060efaa,
0x527bf8b7, 0x5c72f5bc, 0x0605bed5, 0x080cb3de, 0x1a17a4c3, 0x141ea9c8,
0x3e218af9, 0x302887f2, 0x223390ef, 0x2c3a9de4, 0x96dd063d, 0x98d40b36,
0x8acf1c2b, 0x84c61120, 0xaef93211, 0xa0f03f1a, 0xb2eb2807, 0xbce2250c,
0xe6956e65, 0xe89c636e, 0xfa877473, 0xf48e7978, 0xdeb15a49, 0xd0b85742,
0xc2a3405f, 0xccaa4d54, 0x41ecdaf7, 0x4fe5d7fc, 0x5dfec0e1, 0x53f7cdea,
0x79c8eedb, 0x77c1e3d0, 0x65daf4cd, 0x6bd3f9c6, 0x31a4b2af, 0x3fadbfa4,
0x2db6a8b9, 0x23bfa5b2, 0x09808683, 0x07898b88, 0x15929c95, 0x1b9b919e,
0xa17c0a47, 0xaf75074c, 0xbd6e1051, 0xb3671d5a, 0x99583e6b, 0x97513360,
0x854a247d, 0x8b432976, 0xd134621f, 0xdf3d6f14, 0xcd267809, 0xc32f7502,
0xe9105633, 0xe7195b38, 0xf5024c25, 0xfb0b412e, 0x9ad7618c, 0x94de6c87,
0x86c57b9a, 0x88cc7691, 0xa2f355a0, 0xacfa58ab, 0xbee14fb6, 0xb0e842bd,
0xea9f09d4, 0xe49604df, 0xf68d13c2, 0xf8841ec9, 0xd2bb3df8, 0xdcb230f3,
0xcea927ee, 0xc0a02ae5, 0x7a47b13c, 0x744ebc37, 0x6655ab2a, 0x685ca621,
0x42638510, 0x4c6a881b, 0x5e719f06, 0x5078920d, 0x0a0fd964, 0x0406d46f,
0x161dc372, 0x1814ce79, 0x322bed48, 0x3c22e043, 0x2e39f75e, 0x2030fa55,
0xec9ab701, 0xe293ba0a, 0xf088ad17, 0xfe81a01c, 0xd4be832d, 0xdab78e26,
0xc8ac993b, 0xc6a59430, 0x9cd2df59, 0x92dbd252, 0x80c0c54f, 0x8ec9c844,
0xa4f6eb75, 0xaaffe67e, 0xb8e4f163, 0xb6edfc68, 0x0c0a67b1, 0x02036aba,
0x10187da7, 0x1e1170ac, 0x342e539d, 0x3a275e96, 0x283c498b, 0x26354480,
0x7c420fe9, 0x724b02e2, 0x605015ff, 0x6e5918f4, 0x44663bc5, 0x4a6f36ce,
0x587421d3, 0x567d2cd8, 0x37a10c7a, 0x39a80171, 0x2bb3166c, 0x25ba1b67,
0x0f853856, 0x018c355d, 0x13972240, 0x1d9e2f4b, 0x47e96422, 0x49e06929,
0x5bfb7e34, 0x55f2733f, 0x7fcd500e, 0x71c45d05, 0x63df4a18, 0x6dd64713,
0xd731dcca, 0xd938d1c1, 0xcb23c6dc, 0xc52acbd7, 0xef15e8e6, 0xe11ce5ed,
0xf307f2f0, 0xfd0efffb, 0xa779b492, 0xa970b999, 0xbb6bae84, 0xb562a38f,
0x9f5d80be, 0x91548db5, 0x834f9aa8, 0x8d4697a3]);
function expandKey128(cipherKey) {
var b = 176, result = new Uint8Array(b);
result.set(cipherKey);
for (var j = 16, i = 1; j < b; ++i) {
// RotWord
var t1 = result[j - 3], t2 = result[j - 2], t3 = result[j - 1], t4 = result[j - 4];
var t1 = result[j - 3], t2 = result[j - 2],
t3 = result[j - 1], t4 = result[j - 4];
// SubWord
t1 = s[t1]; t2 = s[t2]; t3 = s[t3]; t4 = s[t4];
// Rcon
@ -272,9 +291,12 @@ var AES128Cipher = (function() {
state[j] ^= key[k];
for (i = 9; i >= 1; --i) {
// InvShiftRows
t = state[13]; state[13] = state[9]; state[9] = state[5]; state[5] = state[1]; state[1] = t;
t = state[14]; u = state[10]; state[14] = state[6]; state[10] = state[2]; state[6] = t; state[2] = u;
t = state[15]; u = state[11]; v = state[7]; state[15] = state[3]; state[11] = t; state[7] = u; state[3] = v;
t = state[13]; state[13] = state[9]; state[9] = state[5];
state[5] = state[1]; state[1] = t;
t = state[14]; u = state[10]; state[14] = state[6];
state[10] = state[2]; state[6] = t; state[2] = u;
t = state[15]; u = state[11]; v = state[7]; state[15] = state[3];
state[11] = t; state[7] = u; state[3] = v;
// InvSubBytes
for (j = 0; j < 16; ++j)
state[j] = inv_s[state[j]];
@ -283,8 +305,10 @@ var AES128Cipher = (function() {
state[j] ^= key[k];
// InvMixColumns
for (j = 0; j < 16; j += 4) {
var s0 = mix[state[j]], s1 = mix[state[j + 1]], s2 = mix[state[j + 2]], s3 = mix[state[j + 3]];
t = s0 ^ (s1 >>> 8) ^ (s1 << 24) ^ (s2 >>> 16) ^ (s2 << 16) ^ (s3 >>> 24) ^ (s3 << 8);
var s0 = mix[state[j]], s1 = mix[state[j + 1]],
s2 = mix[state[j + 2]], s3 = mix[state[j + 3]];
t = (s0 ^ (s1 >>> 8) ^ (s1 << 24) ^ (s2 >>> 16) ^ (s2 << 16) ^
(s3 >>> 24) ^ (s3 << 8));
state[j] = (t >>> 24) & 0xFF;
state[j + 1] = (t >> 16) & 0xFF;
state[j + 2] = (t >> 8) & 0xFF;
@ -292,9 +316,12 @@ var AES128Cipher = (function() {
}
}
// InvShiftRows
t = state[13]; state[13] = state[9]; state[9] = state[5]; state[5] = state[1]; state[1] = t;
t = state[14]; u = state[10]; state[14] = state[6]; state[10] = state[2]; state[6] = t; state[2] = u;
t = state[15]; u = state[11]; v = state[7]; state[15] = state[3]; state[11] = t; state[7] = u; state[3] = v;
t = state[13]; state[13] = state[9]; state[9] = state[5];
state[5] = state[1]; state[1] = t;
t = state[14]; u = state[10]; state[14] = state[6];
state[10] = state[2]; state[6] = t; state[2] = u;
t = state[15]; u = state[11]; v = state[7]; state[15] = state[3];
state[11] = t; state[7] = u; state[3] = v;
// InvSubBytes
for (j = 0; j < 16; ++j)
state[j] = inv_s[state[j]];
@ -311,9 +338,9 @@ var AES128Cipher = (function() {
}
function decryptBlock2(data) {
var i, j, sourceLength = data.length;
var buffer = this.buffer, bufferLength = this.bufferPosition, iv = this.iv;
var result = [];
var i, j, sourceLength = data.length,
buffer = this.buffer, bufferLength = this.bufferPosition,
result = [], iv = this.iv;
for (i = 0; i < sourceLength; ++i) {
buffer[bufferLength] = data[i];
++bufferLength;
@ -481,7 +508,8 @@ var CipherTransformFactory = (function() {
var userPassword = stringToBytes(dict.get('U'));
var flags = dict.get('P');
var revision = dict.get('R');
var encryptMetadata = dict.get('EncryptMetadata') !== false; // makes true as default value
var encryptMetadata =
dict.get('EncryptMetadata') !== false; // makes true as default value
var fileIdBytes = stringToBytes(fileId);
var passwordBytes;
if (password)
@ -489,7 +517,8 @@ var CipherTransformFactory = (function() {
this.encryptionKey = prepareKeyData(fileIdBytes, passwordBytes,
ownerPassword, userPassword,
flags, revision, keyLength, encryptMetadata);
flags, revision,
keyLength, encryptMetadata);
if (algorithm == 4) {
this.cf = dict.get('CF');
this.stmf = dict.get('StmF') || identityName;
@ -539,14 +568,17 @@ var CipherTransformFactory = (function() {
buildObjectKey(num, gen, key, true));
};
}
error('Unknown crypto method');
}
constructor.prototype = {
createCipherTransform: function(num, gen) {
if (this.algorithm == 4) {
return new CipherTransform(
buildCipherConstructor(this.cf, this.stmf, num, gen, this.encryptionKey),
buildCipherConstructor(this.cf, this.strf, num, gen, this.encryptionKey));
buildCipherConstructor(this.cf, this.stmf,
num, gen, this.encryptionKey),
buildCipherConstructor(this.cf, this.strf,
num, gen, this.encryptionKey));
}
// algorithms 1 and 2
var key = buildObjectKey(num, gen, this.encryptionKey, false);

747
pdf.js
View File

@ -3870,7 +3870,7 @@ var PartialEvaluator = (function() {
// <canvas> contexts store most of the state we need natively.
// However, PDF needs a bit more state, which we store here.
var CanvasExtraState = (function() {
function constructor() {
function constructor(old) {
// Are soft masks and alpha values shapes or opacities?
this.alphaIsShape = false;
this.fontSize = 0;
@ -3887,10 +3887,18 @@ var CanvasExtraState = (function() {
this.wordSpace = 0;
this.textHScale = 100;
// Color spaces
this.fillColorSpace = null;
this.strokeColorSpace = null;
this.fillColorSpaceObj = null;
this.strokeColorSpaceObj = null;
this.fillColorObj = null;
this.strokeColorObj = null;
this.old = old;
}
constructor.prototype = {
clone: function canvasextra_clone() {
return Object.create(this);
}
};
return constructor;
})();
@ -3921,9 +3929,6 @@ var CanvasGraphics = (function() {
var NORMAL_CLIP = {};
var EO_CLIP = {};
// Used for tiling patterns
var PAINT_TYPE_COLORED = 1, PAINT_TYPE_UNCOLORED = 2;
constructor.prototype = {
beginDrawing: function(mediaBox) {
var cw = this.ctx.canvas.width, ch = this.ctx.canvas.height;
@ -3986,8 +3991,9 @@ var CanvasGraphics = (function() {
if (this.ctx.$saveCurrentX) {
this.ctx.$saveCurrentX();
}
this.stateStack.push(this.current);
this.current = new CanvasExtraState();
var old = this.current;
this.stateStack.push(old);
this.current = old.clone();
},
restore: function() {
var prev = this.stateStack.pop();
@ -4026,7 +4032,19 @@ var CanvasGraphics = (function() {
this.ctx.rect(x, y, width, height);
},
stroke: function() {
this.ctx.stroke();
var ctx = this.ctx;
var strokeColor = this.current.strokeColor;
if (strokeColor && strokeColor.type === "Pattern") {
// for patterns, we transform to pattern space, calculate
// the pattern, call stroke, and restore to user space
ctx.save();
ctx.strokeStyle = strokeColor.getPattern(ctx);
ctx.stroke();
ctx.restore();
} else {
ctx.stroke();
}
this.consumePath();
},
closeStroke: function() {
@ -4034,7 +4052,18 @@ var CanvasGraphics = (function() {
this.stroke();
},
fill: function() {
this.ctx.fill();
var ctx = this.ctx;
var fillColor = this.current.fillColor;
if (fillColor && fillColor.type === "Pattern") {
ctx.save();
ctx.fillStyle = fillColor.getPattern(ctx);
ctx.fill();
ctx.restore();
} else {
ctx.fill();
}
this.consumePath();
},
eoFill: function() {
@ -4043,8 +4072,28 @@ var CanvasGraphics = (function() {
this.restoreFillRule(savedFillRule);
},
fillStroke: function() {
this.ctx.fill();
this.ctx.stroke();
var ctx = this.ctx;
var fillColor = this.current.fillColor;
if (fillColor && fillColor.type === "Pattern") {
ctx.save();
ctx.fillStyle = fillColor.getPattern(ctx);
ctx.fill();
ctx.restore();
} else {
ctx.fill();
}
var strokeColor = this.current.strokeColor;
if (strokeColor && strokeColor.type === "Pattern") {
ctx.save();
ctx.strokeStyle = strokeColor.getPattern(ctx);
ctx.stroke();
ctx.restore();
} else {
ctx.stroke();
}
this.consumePath();
},
eoFillStroke: function() {
@ -4227,168 +4276,41 @@ var CanvasGraphics = (function() {
ColorSpace.parse(space, this.xref, this.res);
},
setStrokeColor: function(/*...*/) {
var cs = this.getStrokeColorSpace();
var cs = this.current.strokeColorSpace;
var color = cs.getRgb(arguments);
this.setStrokeRGBColor.apply(this, color);
},
setStrokeColorN: function(/*...*/) {
var cs = this.getStrokeColorSpace();
var cs = this.current.strokeColorSpace;
if (cs.name == 'Pattern') {
this.ctx.strokeStyle = this.getPattern(cs, arguments);
// wait until fill to actually get the pattern, since Canvas
// calcualtes the pattern according to the current coordinate space,
// not the space when the pattern is set.
var pattern = Pattern.parse(arguments, cs, this.xref, this.res,
this.ctx);
this.current.strokeColor = pattern;
} else {
this.setStrokeColor.apply(this, arguments);
}
},
setFillColor: function(/*...*/) {
var cs = this.getFillColorSpace();
var cs = this.current.fillColorSpace;
var color = cs.getRgb(arguments);
this.setFillRGBColor.apply(this, color);
},
setFillColorN: function(/*...*/) {
var cs = this.getFillColorSpace();
var cs = this.current.fillColorSpace;
if (cs.name == 'Pattern') {
this.ctx.fillStyle = this.getPattern(cs, arguments);
// wait until fill to actually get the pattern
var pattern = Pattern.parse(arguments, cs, this.xref, this.res,
this.ctx);
this.current.fillColor = pattern;
} else {
this.setFillColor.apply(this, arguments);
}
},
getPattern: function(cs, args) {
var length = args.length;
var base = cs.base;
if (base) {
var baseComps = base.numComps;
var color = [];
for (var i = 0; i < baseComps; ++i)
color.push(args[i]);
color = base.getRgb(color);
}
var patternName = args[length - 1];
if (!IsName(patternName))
error("Bad args to getPattern");
var xref = this.xref;
var patternRes = xref.fetchIfRef(this.res.get("Pattern"));
if (!patternRes)
error("Unable to find pattern resource");
var pattern = xref.fetchIfRef(patternRes.get(patternName.name));
var dict = IsStream(pattern) ? pattern.dict : pattern;
var types = [null, this.getTilingPattern, this.getShadingPattern];
var typeNum = dict.get("PatternType");
var patternFn = types[typeNum];
if (!patternFn)
error("Unhandled pattern type");
return patternFn.call(this, pattern, dict, color);
},
getShadingPattern: function(pattern, dict) {
var matrix = dict.get("Matrix");
this.save();
this.transform.apply(this, matrix);
var shading = this.getShading(pattern.get("Shading"));
this.restore();
TODO('store transform so it can be applied before every fill');
return shading;
},
getTilingPattern: function(pattern, dict, color) {
function multiply(m, tm) {
var a = m[0] * tm[0] + m[1] * tm[2];
var b = m[0] * tm[1] + m[1] * tm[3];
var c = m[2] * tm[0] + m[3] * tm[2];
var d = m[2] * tm[1] + m[3] * tm[3];
var e = m[4] * tm[0] + m[5] * tm[2] + tm[4];
var f = m[4] * tm[1] + m[5] * tm[3] + tm[5];
return [a, b, c, d, e, f];
};
this.save();
var ctx = this.ctx;
TODO('TilingType');
var matrix = dict.get('Matrix') || IDENTITY_MATRIX;
var bbox = dict.get('BBox');
var x0 = bbox[0], y0 = bbox[1], x1 = bbox[2], y1 = bbox[3];
var xstep = dict.get('XStep');
var ystep = dict.get('YStep');
// top left corner should correspond to the top left of the bbox
var topLeft = this.applyTransform(x0, y0, matrix);
// we want the canvas to be as large as the step size
var botRight = this.applyTransform(x0 + xstep, y0 + ystep, matrix);
var width = botRight[0] - topLeft[0];
var height = botRight[1] - topLeft[1];
// TODO: hack to avoid OOM, remove then pattern code is fixed
if (Math.abs(width) > 8192 || Math.abs(height) > 8192) {
this.restore();
return 'hotpink';
}
var tmpCanvas = new this.ScratchCanvas(width, height);
// set the new canvas element context as the graphics context
var tmpCtx = tmpCanvas.getContext('2d');
var savedCtx = ctx;
this.ctx = tmpCtx;
var paintType = dict.get('PaintType');
switch (paintType) {
case PAINT_TYPE_COLORED:
tmpCtx.fillStyle = savedCtx.fillStyle;
tmpCtx.strokeStyle = savedCtx.strokeStyle;
break;
case PAINT_TYPE_UNCOLORED:
color = this.makeCssRgb.apply(this, color);
tmpCtx.fillStyle = color;
tmpCtx.strokeStyle = color;
break;
default:
error('Unsupported paint type');
}
// normalize transform matrix so each step
// takes up the entire tmpCanvas (need to remove white borders)
if (matrix[1] === 0 && matrix[2] === 0) {
matrix[0] = tmpCanvas.width / xstep;
matrix[3] = tmpCanvas.height / ystep;
topLeft = this.applyTransform(x0, y0, matrix);
}
// move the top left corner of bounding box to [0,0]
matrix = multiply(matrix, [1, 0, 0, 1, -topLeft[0], -topLeft[1]]);
this.transform.apply(this, matrix);
if (bbox && IsArray(bbox) && 4 == bbox.length) {
this.rectangle.apply(this, bbox);
this.clip();
this.endPath();
}
var xref = this.xref;
var res = xref.fetchIfRef(dict.get('Resources'));
if (!pattern.code)
pattern.code = this.compile(pattern, xref, res, []);
this.execute(pattern.code, xref, res);
this.ctx = savedCtx;
this.restore();
return this.ctx.createPattern(tmpCanvas, 'repeat');
},
setStrokeGray: function(gray) {
this.setStrokeRGBColor(gray, gray, gray);
},
@ -4396,16 +4318,24 @@ var CanvasGraphics = (function() {
this.setFillRGBColor(gray, gray, gray);
},
setStrokeRGBColor: function(r, g, b) {
this.ctx.strokeStyle = this.makeCssRgb(r, g, b);
var color = Util.makeCssRgb(r, g, b);
this.ctx.strokeStyle = color;
this.current.strokeColor = color;
},
setFillRGBColor: function(r, g, b) {
this.ctx.fillStyle = this.makeCssRgb(r, g, b);
var color = Util.makeCssRgb(r, g, b);
this.ctx.fillStyle = color;
this.current.fillColor = color;
},
setStrokeCMYKColor: function(c, m, y, k) {
this.ctx.strokeStyle = this.makeCssCmyk(c, m, y, k);
var color = Util.makeCssCmyk(c, m, y, k);
this.ctx.strokeStyle = color;
this.current.strokeColor = color;
},
setFillCMYKColor: function(c, m, y, k) {
this.ctx.fillStyle = this.makeCssCmyk(c, m, y, k);
var color = Util.makeCssCmyk(c, m, y, k);
this.ctx.fillStyle = color;
this.current.fillColor = color;
},
// Shading
@ -4422,10 +4352,10 @@ var CanvasGraphics = (function() {
if (!shading)
error('No shading object found');
var shadingFill = this.getShading(shading);
var shadingFill = Pattern.parseShading(shading, null, xref, res, ctx);
this.save();
ctx.fillStyle = shadingFill;
ctx.fillStyle = shadingFill.getPattern();
var inv = ctx.mozCurrentTransformInverse;
if (inv) {
@ -4433,10 +4363,10 @@ var CanvasGraphics = (function() {
var width = canvas.width;
var height = canvas.height;
var bl = this.applyTransform(0, 0, inv);
var br = this.applyTransform(0, width, inv);
var ul = this.applyTransform(height, 0, inv);
var ur = this.applyTransform(height, width, inv);
var bl = Util.applyTransform([0, 0], inv);
var br = Util.applyTransform([0, width], inv);
var ul = Util.applyTransform([height, 0], inv);
var ur = Util.applyTransform([height, width], inv);
var x0 = Math.min(bl[0], br[0], ul[0], ur[0]);
var y0 = Math.min(bl[1], br[1], ul[1], ur[1]);
@ -4456,129 +4386,6 @@ var CanvasGraphics = (function() {
this.restore();
},
getShading: function(shading) {
this.save();
shading = this.xref.fetchIfRef(shading);
var dict = IsStream(shading) ? shading.dict : shading;
var bbox = dict.get('BBox');
if (bbox && IsArray(bbox) && 4 == bbox.length) {
this.rectangle.apply(this, bbox);
this.clip();
this.endPath();
}
var background = dict.get('Background');
if (background)
TODO('handle background colors');
var cs = dict.get('ColorSpace', 'CS');
cs = ColorSpace.parse(cs, this.xref, this.res);
var types = [null,
null,
this.getAxialShading,
this.getRadialShading];
var typeNum = dict.get('ShadingType');
var shadingFn = types[typeNum];
this.restore();
// Most likely we will not implement other types of shading
// unless the browser supports them
if (!shadingFn) {
warn("Unknown or NYI type of shading '"+ typeNum +"'");
return 'hotpink';
}
return shadingFn.call(this, shading, cs);
},
getAxialShading: function(sh, cs) {
var coordsArr = sh.get('Coords');
var x0 = coordsArr[0], y0 = coordsArr[1],
x1 = coordsArr[2], y1 = coordsArr[3];
var t0 = 0.0, t1 = 1.0;
if (sh.has('Domain')) {
var domainArr = sh.get('Domain');
t0 = domainArr[0], t1 = domainArr[1];
}
var extendStart = false, extendEnd = false;
if (sh.has('Extend')) {
var extendArr = sh.get('Extend');
extendStart = extendArr[0], extendEnd = extendArr[1];
TODO('Support extend');
}
var fnObj = sh.get('Function');
fnObj = this.xref.fetchIfRef(fnObj);
if (IsArray(fnObj))
error('No support for array of functions');
else if (!IsPDFFunction(fnObj))
error('Invalid function');
var fn = new PDFFunction(this.xref, fnObj);
var gradient = this.ctx.createLinearGradient(x0, y0, x1, y1);
// 10 samples seems good enough for now, but probably won't work
// if there are sharp color changes. Ideally, we would implement
// the spec faithfully and add lossless optimizations.
var step = (t1 - t0) / 10;
var diff = t1 - t0;
for (var i = t0; i <= t1; i += step) {
var color = fn.func([i]);
var rgbColor = cs.getRgb(color);
gradient.addColorStop((i - t0) / diff,
this.makeCssRgb.apply(this, rgbColor));
}
return gradient;
},
getRadialShading: function(sh, cs) {
var coordsArr = sh.get('Coords');
var x0 = coordsArr[0], y0 = coordsArr[1], r0 = coordsArr[2];
var x1 = coordsArr[3], y1 = coordsArr[4], r1 = coordsArr[5];
var t0 = 0.0, t1 = 1.0;
if (sh.has('Domain')) {
var domainArr = sh.get('Domain');
t0 = domainArr[0], t1 = domainArr[1];
}
var extendStart = false, extendEnd = false;
if (sh.has('Extend')) {
var extendArr = sh.get('Extend');
extendStart = extendArr[0], extendEnd = extendArr[1];
TODO('Support extend');
}
var fnObj = sh.get('Function');
fnObj = this.xref.fetchIfRef(fnObj);
if (IsArray(fnObj))
error('No support for array of functions');
else if (!IsPDFFunction(fnObj))
error('Invalid function');
var fn = new PDFFunction(this.xref, fnObj);
var gradient =
this.ctx.createRadialGradient(x0, y0, r0, x1, y1, r1);
// 10 samples seems good enough for now, but probably won't work
// if there are sharp color changes. Ideally, we would implement
// the spec faithfully and add lossless optimizations.
var step = (t1 - t0) / 10;
var diff = t1 - t0;
for (var i = t0; i <= t1; i += step) {
var color = fn.func([i]);
var rgbColor = cs.getRgb(color);
gradient.addColorStop((i - t0) / diff,
this.makeCssRgb.apply(this, rgbColor));
}
return gradient;
},
// Images
beginInlineImage: function() {
@ -4717,48 +4524,6 @@ var CanvasGraphics = (function() {
}
this.ctx.beginPath();
},
makeCssRgb: function(r, g, b) {
var ri = (255 * r) | 0, gi = (255 * g) | 0, bi = (255 * b) | 0;
return 'rgb(' + ri + ',' + gi + ',' + bi + ')';
},
makeCssCmyk: function(c, m, y, k) {
// while waiting on CSS's cmyk()...
// http://www.ilkeratalay.com/colorspacesfaq.php#rgb
var ri = (255 * (1 - Math.min(1, c * (1 - k) + k))) | 0;
var gi = (255 * (1 - Math.min(1, m * (1 - k) + k))) | 0;
var bi = (255 * (1 - Math.min(1, y * (1 - k) + k))) | 0;
return 'rgb(' + ri + ',' + gi + ',' + bi + ')';
},
getFillColorSpace: function() {
var cs = this.current.fillColorSpace;
if (cs)
return cs;
var states = this.stateStack;
var i = states.length - 1;
while (i >= 0 && !(cs = states[i].fillColorSpace))
--i;
if (cs)
return cs;
else
return new DeviceRgbCS();
},
getStrokeColorSpace: function() {
var cs = this.current.strokeColorSpace;
if (cs)
return cs;
var states = this.stateStack;
var i = states.length - 1;
while (i >= 0 && !(cs = states[i].strokeColorSpace))
--i;
if (cs)
return cs;
else
return new DeviceRgbCS();
},
// We generally keep the canvas context set for
// nonzero-winding, and just set evenodd for the operations
// that need them.
@ -4770,16 +4535,31 @@ var CanvasGraphics = (function() {
restoreFillRule: function(rule) {
this.ctx.mozFillRule = rule;
},
applyTransform: function(x0, y0, m) {
var xt = x0 * m[0] + y0 * m[2] + m[4];
var yt = x0 * m[1] + y0 * m[3] + m[5];
return [xt, yt];
}
};
return constructor;
})();
var Util = (function() {
function constructor() {};
constructor.makeCssRgb = function makergb(r, g, b) {
var ri = (255 * r) | 0, gi = (255 * g) | 0, bi = (255 * b) | 0;
return 'rgb(' + ri + ',' + gi + ',' + bi + ')';
};
constructor.makeCssCmyk = function makecmyk(c, m, y, k) {
var c = (new DeviceCmykCS()).getRgb([c, m, y, k]);
var ri = (255 * c[0]) | 0, gi = (255 * c[1]) | 0, bi = (255 * c[2]) | 0;
return 'rgb(' + ri + ',' + gi + ',' + bi + ')';
};
constructor.applyTransform = function apply(p, m) {
var xt = p[0] * m[0] + p[1] * m[2] + m[4];
var yt = p[0] * m[1] + p[1] * m[3] + m[5];
return [xt, yt];
};
return constructor;
})();
var ColorSpace = (function() {
// Constructor should define this.numComps, this.defaultColor, this.name
function constructor() {
@ -5131,6 +4911,307 @@ var DeviceCmykCS = (function() {
return constructor;
})();
var Pattern = (function() {
// Constructor should define this.getPattern
function constructor() {
error('should not call Pattern constructor');
};
constructor.prototype = {
// Input: current Canvas context
// Output: the appropriate fillStyle or strokeStyle
getPattern: function pattern_getStyle(ctx) {
error('Should not call Pattern.getStyle');
},
};
constructor.parse = function pattern_parse(args, cs, xref, res, ctx) {
var length = args.length;
var patternName = args[length - 1];
if (!IsName(patternName))
error("Bad args to getPattern");
var patternRes = xref.fetchIfRef(res.get("Pattern"));
if (!patternRes)
error("Unable to find pattern resource");
var pattern = xref.fetchIfRef(patternRes.get(patternName.name));
var dict = IsStream(pattern) ? pattern.dict : pattern;
var typeNum = dict.get("PatternType");
switch(typeNum) {
case 1:
var base = cs.base;
var color;
if (base) {
var baseComps = base.numComps;
color = [];
for (var i = 0; i < baseComps; ++i)
color.push(args[i]);
color = base.getRgb(color);
}
return new TilingPattern(pattern, dict, color, xref, ctx);
case 2:
var shading = xref.fetchIfRef(dict.get('Shading'));
var matrix = dict.get('Matrix');
return Pattern.parseShading(shading, matrix, xref, res, ctx);
default:
error('Unknown type of pattern');
}
};
constructor.parseShading = function pattern_shading(shading, matrix,
xref, res, ctx) {
var dict = IsStream(shading) ? shading.dict : shading;
var type = dict.get('ShadingType');
switch (type) {
case 2:
case 3:
// both radial and axial shadings are handled by RadialAxial shading
return new RadialAxialShading(dict, matrix, xref, res, ctx);
default:
return new DummyShading();
}
}
return constructor;
})();
var DummyShading = (function() {
function constructor() {
this.type = 'Pattern';
};
constructor.prototype = {
getPattern: function dummy_getpattern() {
return 'hotpink';
}
};
return constructor;
})();
// Radial and axial shading have very similar implementations
// If needed, the implementations can be broken into two classes
var RadialAxialShading = (function() {
function constructor(dict, matrix, xref, res, ctx) {
this.matrix = matrix;
var bbox = dict.get('BBox');
var background = dict.get('Background');
this.coordsArr = dict.get('Coords');
this.shadingType = dict.get('ShadingType');
this.type = 'Pattern';
this.ctx = ctx;
this.curMatrix = ctx.mozCurrentTransform;
var cs = dict.get('ColorSpace', 'CS');
cs = ColorSpace.parse(cs, xref, res);
this.cs = cs;
var t0 = 0.0, t1 = 1.0;
if (dict.has('Domain')) {
var domainArr = dict.get('Domain');
t0 = domainArr[0], t1 = domainArr[1];
}
var extendStart = false, extendEnd = false;
if (dict.has('Extend')) {
var extendArr = dict.get('Extend');
extendStart = extendArr[0], extendEnd = extendArr[1];
TODO('Support extend');
}
this.extendStart = extendStart;
this.extendEnd = extendEnd;
var fnObj = dict.get('Function');
fnObj = xref.fetchIfRef(fnObj);
if (IsArray(fnObj))
error('No support for array of functions');
else if (!IsPDFFunction(fnObj))
error('Invalid function');
var fn = new PDFFunction(xref, fnObj);
// 10 samples seems good enough for now, but probably won't work
// if there are sharp color changes. Ideally, we would implement
// the spec faithfully and add lossless optimizations.
var step = (t1 - t0) / 10;
var diff = t1 - t0;
var colorStops = [];
for (var i = t0; i <= t1; i += step) {
var color = fn.func([i]);
var rgbColor = Util.makeCssRgb.apply(this, cs.getRgb(color));
colorStops.push([(i - t0) / diff, rgbColor]);
}
this.colorStops = colorStops;
};
constructor.prototype = {
getPattern: function() {
var coordsArr = this.coordsArr;
var type = this.shadingType;
if (type == 2) {
var p0 = [coordsArr[0], coordsArr[1]];
var p1 = [coordsArr[2], coordsArr[3]];
} else if (type == 3) {
var p0 = [coordsArr[0], coordsArr[1]];
var p1 = [coordsArr[3], coordsArr[4]];
var r0 = coordsArr[2], r1 = coordsArr[5]
} else {
error()
}
var matrix = this.matrix;
if (matrix) {
p0 = Util.applyTransform(p0, matrix);
p1 = Util.applyTransform(p1, matrix);
}
// if the browser supports getting the tranform matrix, convert
// gradient coordinates from pattern space to current user space
var curMatrix = this.curMatrix;
var ctx = this.ctx;
if (curMatrix) {
var userMatrix = ctx.mozCurrentTransformInverse;
p0 = Util.applyTransform(p0, curMatrix);
p0 = Util.applyTransform(p0, userMatrix);
p1 = Util.applyTransform(p1, curMatrix);
p1 = Util.applyTransform(p1, userMatrix);
}
var colorStops = this.colorStops;
if (type == 2)
var grad = ctx.createLinearGradient(p0[0], p0[1], p1[0], p1[1]);
else if (type == 3)
var grad = ctx.createRadialGradient(p0[0], p0[1], r0, p1[0], p1[1], r1);
for (var i = 0, ii = colorStops.length; i < ii; ++i) {
var c = colorStops[i];
grad.addColorStop(c[0], c[1]);
}
return grad;
}
};
return constructor;
})();
var TilingPattern = (function() {
var PAINT_TYPE_COLORED = 1, PAINT_TYPE_UNCOLORED = 2;
function constructor(pattern, dict, color, xref, ctx) {
function multiply(m, tm) {
var a = m[0] * tm[0] + m[1] * tm[2];
var b = m[0] * tm[1] + m[1] * tm[3];
var c = m[2] * tm[0] + m[3] * tm[2];
var d = m[2] * tm[1] + m[3] * tm[3];
var e = m[4] * tm[0] + m[5] * tm[2] + tm[4];
var f = m[4] * tm[1] + m[5] * tm[3] + tm[5];
return [a, b, c, d, e, f];
};
TODO('TilingType');
this.matrix = dict.get("Matrix");
this.curMatrix = ctx.mozCurrentTransform;
this.invMatrix = ctx.mozCurrentTransformInverse;
this.ctx = ctx;
this.type = 'Pattern';
var bbox = dict.get('BBox');
var x0 = bbox[0], y0 = bbox[1], x1 = bbox[2], y1 = bbox[3];
var xstep = dict.get('XStep');
var ystep = dict.get('YStep');
var topLeft = [x0, y0];
// we want the canvas to be as large as the step size
var botRight = [x0 + xstep, y0 + ystep]
var width = botRight[0] - topLeft[0];
var height = botRight[1] - topLeft[1];
// TODO: hack to avoid OOM, we would idealy compute the tiling
// pattern to be only as large as the acual size in device space
// This could be computed with .mozCurrentTransform, but still
// needs to be implemented
while (Math.abs(width) > 512 || Math.abs(height) > 512) {
width = 512;
height = 512;
}
var tmpCanvas = new ScratchCanvas(width, height);
// set the new canvas element context as the graphics context
var tmpCtx = tmpCanvas.getContext('2d');
var graphics = new CanvasGraphics(tmpCtx);
var paintType = dict.get('PaintType');
switch (paintType) {
case PAINT_TYPE_COLORED:
tmpCtx.fillStyle = ctx.fillStyle;
tmpCtx.strokeStyle = ctx.strokeStyle;
break;
case PAINT_TYPE_UNCOLORED:
color = Util.makeCssRgb.apply(this, color);
tmpCtx.fillStyle = color;
tmpCtx.strokeStyle = color;
break;
default:
error('Unsupported paint type');
}
var scale = [width / xstep, height / ystep];
this.scale = scale;
// transform coordinates to pattern space
var tmpTranslate = [1, 0, 0, 1, -topLeft[0], -topLeft[1]];
var tmpScale = [scale[0], 0, 0, scale[1], 0, 0];
graphics.transform.apply(graphics, tmpScale);
graphics.transform.apply(graphics, tmpTranslate);
if (bbox && IsArray(bbox) && 4 == bbox.length) {
graphics.rectangle.apply(graphics, bbox);
graphics.clip();
graphics.endPath();
}
var res = xref.fetchIfRef(dict.get('Resources'));
if (!pattern.code)
pattern.code = graphics.compile(pattern, xref, res, []);
graphics.execute(pattern.code, xref, res);
this.canvas = tmpCanvas;
};
constructor.prototype = {
getPattern: function tiling_getPattern() {
var matrix = this.matrix;
var curMatrix = this.curMatrix;
var ctx = this.ctx;
if (curMatrix)
ctx.setTransform.apply(ctx, curMatrix);
if (matrix)
ctx.transform.apply(ctx, matrix);
var scale = this.scale;
ctx.scale(1 / scale[0], 1 / scale[1]);
return ctx.createPattern(this.canvas, 'repeat');
}
};
return constructor;
})();
var PDFImage = (function() {
function constructor(xref, res, image, inline) {
this.image = image;