Mercurial > projects > dwt-mac
annotate dwt/internal/c/callback.d @ 10:30a762abda2a
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author | Frank Benoit <benoit@tionex.de> |
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date | Thu, 28 Aug 2008 12:31:10 +0200 |
parents | e831403a80a9 |
children | 5b53d338c709 |
rev | line source |
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1 /******************************************************************************* |
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2 * Copyright (c) 2000, 2007 IBM Corporation and others. |
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3 * All rights reserved. This program and the accompanying materials |
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4 * are made available under the terms of the Eclipse Public License v1.0 |
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5 * which accompanies this distribution, and is available at |
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6 * http://www.eclipse.org/legal/epl-v10.html |
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7 * |
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8 * Contributors: |
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9 * IBM Corporation - initial API and implementation |
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10 * |
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11 * Port to the D Programming language: |
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12 * Jacob Carlborg <jacob.carlborg@gmail.com> |
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13 *******************************************************************************/ |
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14 module dwt.internal.c.callback; |
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15 |
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16 /** |
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17 * Callback implementation. |
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18 */ |
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19 import dwt.dwthelper.utils; |
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20 import dwt.internal.Callback; |
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21 |
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22 /* Header */ |
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23 |
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24 version (Win32) |
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25 { |
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26 import tango.sys.win32.UserGdi; |
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27 import tango.sys.win32.Types; |
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28 } |
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29 |
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30 else version (Win32_WCE) |
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31 { |
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32 import tango.sys.win32.UserGdi; |
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33 import tango.sys.win32.Types; |
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34 } |
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35 |
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36 else |
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37 alias RETURN_TYPE SWT_PTR; |
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38 |
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39 /* Implementation */ |
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40 |
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41 alias size_t SWT_PTR; |
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42 |
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43 struct CALLBACK_DATA |
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44 { |
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45 Callback callback; |
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46 jmethodID methodID; |
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47 Object object; |
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48 bool isStatic; |
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49 bool isArrayBased; |
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50 int argCount; |
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51 SWT_PTR errorResult; |
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52 } |
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53 |
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54 bool USE_ASSEMBLER = false; |
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55 |
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56 version (X86) |
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57 bool USE_ASSEMBLER = true; |
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58 |
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59 private |
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60 { |
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61 CALLBACK_DATA callbackData[MAX_CALLBACKS]; |
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62 int callbackEnabled = 1; |
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63 int callbackEntryCount = 0; |
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64 int initialized = 0; |
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65 } |
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66 |
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67 SWT_PTR callback(int index, ...); |
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68 |
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69 static if (USE_ASSEMBLER) |
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70 { |
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71 version (Win32){} |
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72 else version (Win32_WCE){} |
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73 else |
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74 import tango.stdc.posix.sys.mman; |
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75 |
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76 ubyte* callbackCode = null; |
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77 int CALLBACK_THUNK_SIZE = 64; |
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78 } |
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79 |
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80 SWT_PTR bind (Callback callbackObject, Object object, String method, String signature, int argCount, boolean isStatic, boolean isArrayBased, SWT_PTR errorResult) |
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81 { |
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82 int i; |
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83 jmethodID mid = null; |
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84 jclass javaClass = that; |
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85 const char* methodString = null; |
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86 const char* sigString = null; |
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87 |
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88 if (jvm == null) |
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89 (*env).GetJavaVM(env, &jvm); |
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90 |
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91 if (!initialized) |
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92 { |
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93 memset(&callbackData, 0, callbackData.sizeof); |
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94 initialized = 1; |
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95 } |
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96 |
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97 if (method) |
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98 methodString = cast(/*const*/char*) (*env).GetStringUTFChars(env, method, null); |
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99 |
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100 if (signature) |
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101 sigString = cast(/*const*/char*) (*env).GetStringUTFChars(env, signature, null); |
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102 |
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103 if (object && methodString && sigString) |
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104 { |
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105 if (isStatic) |
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106 { |
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107 mid = (*env).GetStaticMethodID(env, object, methodString, sigString); |
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108 } |
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109 else |
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110 { |
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111 javaClass = (*env).GetObjectClass(env, object); |
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112 mid = (*env).GetMethodID(env, javaClass, methodString, sigString); |
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113 } |
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114 } |
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115 |
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116 if (method && methodString) |
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117 (*env).ReleaseStringUTFChars(env, method, methodString); |
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118 |
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119 if (signature && sigString) |
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120 (*env).ReleaseStringUTFChars(env, signature, sigString); |
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121 |
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122 if (mid == 0) |
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123 goto fail; |
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124 |
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125 for (i = 0; i < MAX_CALLBACKS; i++) |
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126 { |
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127 if (!callbackData[i].callback) |
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128 { |
1
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129 if ((callbackData[i].callback = (*env).NewGlobalRef(env, callbackObject)) == null) |
0
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130 goto fail; |
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131 |
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132 if ((callbackData[i].object = (*env).NewGlobalRef(env, object)) == null) |
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133 goto fail; |
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|
134 |
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135 callbackData[i].isStatic = isStatic; |
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136 callbackData[i].isArrayBased = isArrayBased; |
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137 callbackData[i].argCount = argCount; |
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138 callbackData[i].errorResult = errorResult; |
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139 callbackData[i].methodID = mid; |
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140 |
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141 static if (!USE_ASSEMBLER) |
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142 return cast(SWT_PTR) fnx_array[argCount][i]; |
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143 |
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144 { |
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145 int j = 0, k, pad = 0; |
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146 ubyte* code; |
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147 |
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148 if (callbackCode == null) |
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149 { |
10
30a762abda2a
Revert automatic changes from dwt/internal and dwt/dwthelper. Excluded dwt/internal/image and theme.
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150 version (Win32) |
0
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151 { |
1
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152 callbackCode = VirtualAlloc(null, CALLBACK_THUNK_SIZE * MAX_CALLBACKS, MEM_COMMIT, PAGE_EXECUTE_READWRITE); |
0
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153 if (callbackCode == null) |
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154 return 0; |
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155 } |
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156 |
10
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Frank Benoit <benoit@tionex.de>
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157 else version (Win32_WCE) |
0
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158 { |
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159 callbackCode = VirtualAlloc(null, CALLBACK_THUNK_SIZE * MAX_CALLBACKS, MEM_COMMIT, PAGE_EXECUTE_READWRITE); |
0
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160 if (callbackCode == null) |
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161 return 0; |
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162 } |
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|
163 |
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164 else |
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165 { |
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166 callbackCode = mmap(null, CALLBACK_THUNK_SIZE * MAX_CALLBACKS, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0); |
0
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167 if (callbackCode == MAP_FAILED) |
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168 return 0; |
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|
169 } |
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|
170 } |
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171 code = cast(ubyte*) (callbackCode + (i * CALLBACK_THUNK_SIZE)); |
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172 |
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|
173 //PUSH EBP - 1 byte |
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174 code[j++] = 0x55; |
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175 |
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|
176 //MOV EBP,ESP - 2 bytes |
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177 code[j++] = 0x8b; |
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178 code[j++] = 0xec; |
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179 |
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parents:
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|
180 version (darwin) |
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|
181 { |
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182 /* darwin calling conventions require that the stack be aligned on a 16-byte boundary. */ |
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183 k = (argCount + 3) * SWT_PTR.sizeof; |
0
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184 pad = ((k + 15) & ~15) - k; |
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parents:
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185 if (pad > 0) |
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|
186 { |
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|
187 //SUB ESP,pad - 3 bytes |
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188 code[j++] = 0x83; |
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189 code[j++] = 0xec; |
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190 code[j++] = pad; |
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191 } |
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|
192 } |
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parents:
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|
193 |
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194 // 3*argCount bytes |
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195 for (k = (argCount + 1) * SWT_PTR.sizeof; k >= SWT_PTR.sizeof * 2; k -= SWT_PTR.sizeof) |
0
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196 { |
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197 //PUSH SS:[EBP+k] |
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198 code[j++] = 0xff; |
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199 code[j++] = 0x75; |
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200 code[j++] = k; |
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201 } |
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|
202 |
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|
203 if (i > 127) |
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204 { |
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|
205 //PUSH i - 5 bytes |
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206 code[j++] = 0x68; |
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207 code[j++] = ((i >> 0) & 0xFF); |
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208 code[j++] = ((i >> 8) & 0xFF); |
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209 code[j++] = ((i >> 16) & 0xFF); |
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210 code[j++] = ((i >> 24) & 0xFF); |
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211 } |
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212 else |
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213 { |
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214 //PUSH i - 2 bytes |
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215 code[j++] = 0x6a; |
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216 code[j++] = i; |
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217 } |
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218 |
1
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The internal cocoa classes compile now
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219 //MOV EAX callback - 1 + SWT_PTR.sizeof bytes |
0
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220 code[j++] = 0xb8; |
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221 (cast(SWT_PTR*) &code[j])[0] = cast(SWT_PTR) &callback; |
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222 j += SWT_PTR.sizeof; |
0
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223 |
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224 //CALL EAX - 2 bytes |
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225 code[j++] = 0xff; |
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226 code[j++] = 0xd0; |
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227 |
1
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228 //ADD ESP,(argCount + 1) * SWT_PTR.sizeof - 3 bytes |
0
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229 code[j++] = 0x83; |
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230 code[j++] = 0xc4; |
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parents:
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|
231 |
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232 version (darwin) |
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233 code[j++] = cast(ubyte) (pad + ((argCount + 1) * SWT_PTR.sizeof)); |
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234 else |
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235 code[j++] = cast(ubyte) ((argCount + 1) * SWT_PTR.sizeof); |
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236 |
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237 //POP EBP - 1 byte |
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238 code[j++] = 0x5d; |
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239 |
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Revert automatic changes from dwt/internal and dwt/dwthelper. Excluded dwt/internal/image and theme.
Frank Benoit <benoit@tionex.de>
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240 version (Win32) |
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241 { |
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242 // RETN argCount * SWT_PTR.sizeof - 3 bytes |
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243 code[j++] = 0xc2; |
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244 code[j++] = cast(ubyte) (argCount * SWT_PTR.sizeof); |
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245 code[j++] = 0x00; |
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246 } |
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247 |
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Frank Benoit <benoit@tionex.de>
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248 else version (Win32_WCE) |
0
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249 { |
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250 // RETN argCount * SWT_PTR.sizeof - 3 bytes |
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251 code[j++] = 0xc2; |
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252 code[j++] = cast(ubyte) (argCount * SWT_PTR.sizeof); |
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253 code[j++] = 0x00; |
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254 } |
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255 |
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256 else |
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Upload of whole dwt tree
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257 { |
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258 // RETN - 1 byte |
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259 code[j++] = 0xc3; |
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260 } |
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Upload of whole dwt tree
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261 |
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262 if (j > CALLBACK_THUNK_SIZE) |
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263 { |
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264 jclass errorClass = (*env).FindClass(env, "java/lang/Error"); |
0
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265 (*env).ThrowNew(env, errorClass, "Callback thunk overflow"); |
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266 } |
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Upload of whole dwt tree
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267 |
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Upload of whole dwt tree
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parents:
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268 return cast(SWT_PTR) code; |
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Upload of whole dwt tree
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269 } |
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270 } |
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Upload of whole dwt tree
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271 } |
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Upload of whole dwt tree
Jacob Carlborg <doob@me.com> <jacob.carlborg@gmail.com>
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272 |
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Upload of whole dwt tree
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273 fail: |
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274 return 0; |
0
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Upload of whole dwt tree
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275 } |