1 | Mad.BinaryStrings.ByteStream = function(url) { }
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2 |
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3 | Mad.BinaryStrings.ByteStream.prototype.available = function(n) {
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4 | return this.absoluteAvailable(this.offset + n);
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5 | }
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6 |
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7 | Mad.BinaryStrings.ByteStream.prototype.strEquals = function (offset, string) {
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8 | for (var i = 0; i < string.length; i++) {
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9 | if(this.getU8(offset + i, false) != string.charCodeAt(i)) return false;
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10 | }
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11 | return true;
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12 | }
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13 |
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14 | Mad.BinaryStrings.ByteStream.prototype.getU8 = function(offset, bigEndian) {
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15 | var bytes = this.get(offset, 1);
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16 | return bytes.charCodeAt(0);
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17 | }
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18 |
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19 | Mad.BinaryStrings.ByteStream.prototype.getU16 = function(offset, bigEndian) {
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20 | var bytes = this.get(offset, 2);
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21 |
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22 | if (!bigEndian) {
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23 | bytes = bytes.reverse();
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24 | }
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25 |
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26 | return (bytes.charCodeAt(0) << 8) | bytes.charCodeAt(1);
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27 | }
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28 |
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29 | Mad.BinaryStrings.ByteStream.prototype.getU24 = function(offset, bigEndian) {
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30 | var bytes = this.get(offset, 3);
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31 |
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32 | if (!bigEndian) {
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33 | bytes = bytes.reverse();
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34 | }
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35 |
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36 | return (bytes.charCodeAt(0) << 16) | (bytes.charCodeAt(1) << 8) | bytes.charCodeAt(2);
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37 | }
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38 |
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39 | Mad.BinaryStrings.ByteStream.prototype.getU32 = function(offset, bigEndian) {
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40 | var bytes = this.get(offset, 4);
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41 |
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42 | if (!bigEndian) {
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43 | bytes = bytes.reverse();
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44 | }
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45 |
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46 | return (bytes.charCodeAt(0) << 24) | (bytes.charCodeAt(1) << 16) | (bytes.charCodeAt(2) << 8) | bytes.charCodeAt(3);
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47 | }
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48 |
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49 | Mad.BinaryStrings.ByteStream.prototype.getI8 = function(offset, bigEndian) {
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50 | return this.getU8(offset, bigEndian) - 128; // 2 ** 7
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51 | }
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52 |
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53 | Mad.BinaryStrings.ByteStream.prototype.getI16 = function(offset, bigEndian) {
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54 | return this.getU16(offset, bigEndian) - 65536; // 2 ** 15
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55 | }
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56 |
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57 | Mad.BinaryStrings.ByteStream.prototype.getI32 = function(offset, bigEndian) {
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58 | return this.getU32(offset, bigEndian) - 2147483648; // 2 ** 31
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59 | }
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60 |
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61 | Mad.BinaryStrings.ByteStream.prototype.getSyncInteger = function(offset) {
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62 | var bytes = this.get(offset, 4);
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63 |
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64 | return (bytes.charCodeAt(0) << 21) | (bytes.charCodeAt(1) << 14) | (bytes.charCodeAt(2) << 7) | bytes.charCodeAt(3);
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65 | }
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66 |
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67 | Mad.BinaryStrings.ByteStream.prototype.peekU8 = function(bigEndian) {
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68 | return this.getU8(this.offset, bigEndian);
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69 | }
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70 |
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71 | Mad.BinaryStrings.ByteStream.prototype.peekU16 = function(bigEndian) {
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72 | return this.getU16(this.offset, bigEndian);
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73 | }
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74 |
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75 | Mad.BinaryStrings.ByteStream.prototype.peekU24 = function(bigEndian) {
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76 | return this.getU24(this.offset, bigEndian);
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77 | }
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78 |
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79 | Mad.BinaryStrings.ByteStream.prototype.peekU32 = function(bigEndian) {
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80 | return this.getU32(this.offset, bigEndian);
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81 | }
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82 |
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83 | Mad.BinaryStrings.ByteStream.prototype.peekI8 = function(bigEndian) {
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84 | return this.getI8(this.offset, bigEndian);
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85 | }
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86 |
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87 | Mad.BinaryStrings.ByteStream.prototype.peekI16 = function(bigEndian) {
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88 | return this.getI16(this.offset, bigEndian);
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89 | }
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90 |
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91 | Mad.BinaryStrings.ByteStream.prototype.peekI32 = function(bigEndian) {
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92 | return this.getI32(this.offset, bigEndian);
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93 | }
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94 |
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95 | Mad.BinaryStrings.ByteStream.prototype.peekSyncInteger = function() {
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96 | return this.getSyncInteger(this.offset);
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97 | }
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98 |
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99 | Mad.BinaryStrings.ByteStream.prototype.readU8 = function(bigEndian) {
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100 | var result = this.peekU8(bigEndian);
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101 |
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102 | this.seek(1);
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103 |
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104 | return result;
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105 | }
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106 |
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107 | Mad.BinaryStrings.ByteStream.prototype.readU16 = function(bigEndian) {
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108 | var result = this.peekU16(bigEndian);
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109 |
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110 | this.seek(2);
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111 |
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112 | return result;
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113 | }
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114 |
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115 | Mad.BinaryStrings.ByteStream.prototype.readU24 = function(bigEndian) {
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116 | var result = this.peekU24(bigEndian);
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117 |
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118 | this.seek(3);
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119 |
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120 | return result;
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121 | }
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122 |
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123 | Mad.BinaryStrings.ByteStream.prototype.readU32 = function(bigEndian) {
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124 | var result = this.peekU32(bigEndian);
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125 |
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126 | this.seek(4);
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127 |
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128 | return result;
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129 | }
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130 |
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131 | Mad.BinaryStrings.ByteStream.prototype.readI8 = function(bigEndian) {
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132 | var result = this.peekI8(bigEndian);
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133 |
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134 | this.seek(1);
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135 |
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136 | return result;
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137 | }
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138 |
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139 | Mad.BinaryStrings.ByteStream.prototype.readI16 = function(bigEndian) {
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140 | var result = this.peekI16(bigEndian);
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141 |
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142 | this.seek(2);
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143 |
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144 | return result;
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145 | }
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146 |
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147 | Mad.BinaryStrings.ByteStream.prototype.readI32 = function(bigEndian) {
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148 | var result = this.peekI32(bigEndian);
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149 |
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150 | this.seek(4);
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151 |
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152 | return result;
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153 | }
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154 |
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155 | Mad.BinaryStrings.ByteStream.prototype.readSyncInteger = function() {
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156 | var result = this.getSyncInteger(this.offset);
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157 |
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158 | this.seek(4);
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159 |
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160 | return result;
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161 | }
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