annotate src/main/win32/SDL_win32_main.c @ 2218:6cc82cad8b77

1.3 video API design chat
author Sam Lantinga <slouken@libsdl.org>
date Tue, 07 Aug 2007 07:08:25 +0000
parents c121d94672cb
children 41a6675d8700
rev   line source
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1 /*
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2 SDL_main.c, placed in the public domain by Sam Lantinga 4/13/98
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3
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4 The WinMain function -- calls your program's main() function
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5 */
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6
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7 #include <stdio.h>
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8 #include <stdlib.h>
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9
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10 #define WIN32_LEAN_AND_MEAN
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11 #include <windows.h>
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12
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13 /* Include the SDL main definition header */
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14 #include "SDL.h"
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15 #include "SDL_main.h"
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16
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17 #ifdef main
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18 # ifndef _WIN32_WCE_EMULATION
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19 # undef main
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20 # endif /* _WIN32_WCE_EMULATION */
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21 #endif /* main */
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22
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23 #if defined(_WIN32_WCE) && _WIN32_WCE < 300
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24 /* seems to be undefined in Win CE although in online help */
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25 #define isspace(a) (((CHAR)a == ' ') || ((CHAR)a == '\t'))
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26 #endif /* _WIN32_WCE < 300 */
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27
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28 /* Parse a command line buffer into arguments */
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29 static int
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30 ParseCommandLine(char *cmdline, char **argv)
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31 {
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32 char *bufp;
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33 int argc;
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34
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35 argc = 0;
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36 for (bufp = cmdline; *bufp;) {
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37 /* Skip leading whitespace */
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38 while (isspace(*bufp)) {
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39 ++bufp;
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40 }
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41 /* Skip over argument */
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42 if (*bufp == '"') {
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43 ++bufp;
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44 if (*bufp) {
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45 if (argv) {
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46 argv[argc] = bufp;
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47 }
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48 ++argc;
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49 }
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50 /* Skip over word */
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51 while (*bufp && (*bufp != '"')) {
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52 ++bufp;
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53 }
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54 } else {
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55 if (*bufp) {
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56 if (argv) {
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57 argv[argc] = bufp;
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58 }
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59 ++argc;
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60 }
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61 /* Skip over word */
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62 while (*bufp && !isspace(*bufp)) {
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63 ++bufp;
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64 }
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65 }
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66 if (*bufp) {
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67 if (argv) {
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68 *bufp = '\0';
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69 }
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70 ++bufp;
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71 }
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72 }
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73 if (argv) {
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74 argv[argc] = NULL;
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75 }
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76 return (argc);
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77 }
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78
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79 /* Show an error message */
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80 static void
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81 ShowError(const char *title, const char *message)
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82 {
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83 /* If USE_MESSAGEBOX is defined, you need to link with user32.lib */
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84 #ifdef USE_MESSAGEBOX
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85 MessageBox(NULL, message, title, MB_ICONEXCLAMATION | MB_OK);
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86 #else
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87 fprintf(stderr, "%s: %s\n", title, message);
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88 #endif
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89 }
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90
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91 /* Pop up an out of memory message, returns to Windows */
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92 static BOOL
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93 OutOfMemory(void)
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94 {
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95 ShowError("Fatal Error", "Out of memory - aborting");
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96 return FALSE;
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97 }
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98
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99 #if defined(_MSC_VER) && !defined(_WIN32_WCE)
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100 /* The VC++ compiler needs main defined */
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101 #define console_main main
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102 #endif
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103
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104 /* This is where execution begins [console apps] */
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105 int
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106 console_main(int argc, char *argv[])
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107 {
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108 int status;
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109
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110 /* Run the application main() code */
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111 status = SDL_main(argc, argv);
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112
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113 /* Exit cleanly, calling atexit() functions */
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114 exit(status);
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115
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116 /* Hush little compiler, don't you cry... */
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117 return 0;
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118 }
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119
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120 /* This is where execution begins [windowed apps] */
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121 int WINAPI
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122 WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPTSTR szCmdLine, int sw)
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123 {
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124 char **argv;
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125 int argc;
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126 char *cmdline;
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127 #ifdef _WIN32_WCE
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128 wchar_t *bufp;
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129 int nLen;
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130 #else
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131 char *bufp;
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132 size_t nLen;
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133 #endif
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134
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135 #ifdef _WIN32_WCE
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136 nLen = wcslen(szCmdLine) + 128 + 1;
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137 bufp = SDL_stack_alloc(wchar_t, nLen * 2);
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138 wcscpy(bufp, TEXT("\""));
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139 GetModuleFileName(NULL, bufp + 1, 128 - 3);
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140 wcscpy(bufp + wcslen(bufp), TEXT("\" "));
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141 wcsncpy(bufp + wcslen(bufp), szCmdLine, nLen - wcslen(bufp));
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142 nLen = wcslen(bufp) + 1;
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143 cmdline = SDL_stack_alloc(char, nLen);
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144 if (cmdline == NULL) {
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145 return OutOfMemory();
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146 }
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147 WideCharToMultiByte(CP_ACP, 0, bufp, -1, cmdline, nLen, NULL, NULL);
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148 #else
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149 /* Grab the command line */
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150 bufp = GetCommandLine();
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151 nLen = SDL_strlen(bufp) + 1;
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152 cmdline = SDL_stack_alloc(char, nLen);
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153 if (cmdline == NULL) {
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154 return OutOfMemory();
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155 }
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156 SDL_strlcpy(cmdline, bufp, nLen);
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157 #endif
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158
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159 /* Parse it into argv and argc */
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160 argc = ParseCommandLine(cmdline, NULL);
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161 argv = SDL_stack_alloc(char *, argc + 1);
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162 if (argv == NULL) {
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163 return OutOfMemory();
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164 }
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165 ParseCommandLine(cmdline, argv);
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166
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167 /* Run the main program */
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168 console_main(argc, argv);
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169
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170 /* Hush little compiler, don't you cry... */
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171 return 0;
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172 }
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173
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174 /* vi: set ts=4 sw=4 expandtab: */