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annotate src/video/win32/SDL_win32video.c @ 1724:6c63fc2bd986 SDL-1.3

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Proof of concept done - Win32 GDI implementation mostly complete.
author Sam Lantinga <slouken@libsdl.org>
date Thu, 06 Jul 2006 07:17:11 +0000
parents a1ebb17f9c52
children 98a3207ddde8
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #include "SDL_main.h"
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25 #include "SDL_video.h"
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26 #include "SDL_mouse.h"
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27 #include "../SDL_sysvideo.h"
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28 #include "../SDL_pixels_c.h"
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29
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30 #include "SDL_win32video.h"
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31 #include "SDL_dibrender.h"
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32
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33 /* Initialization/Query functions */
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34 static int WIN_VideoInit(_THIS);
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35 static int WIN_SetDisplayMode(_THIS, const SDL_DisplayMode * mode);
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36 static void WIN_VideoQuit(_THIS);
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37
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38 /* WIN32 driver bootstrap functions */
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39
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40 static int
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41 WIN_Available(void)
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42 {
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43 return (1);
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44 }
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45
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46 static void
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47 WIN_DeleteDevice(SDL_VideoDevice * device)
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48 {
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49 SDL_UnregisterApp();
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50 SDL_free(device->driverdata);
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51 SDL_free(device);
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52 }
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53
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54 static SDL_VideoDevice *
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55 WIN_CreateDevice(int devindex)
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56 {
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57 SDL_VideoDevice *device;
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58
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59 SDL_RegisterApp(NULL, 0, NULL);
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60
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61 /* Initialize all variables that we clean on shutdown */
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62 device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
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63 if (device) {
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64 device->driverdata =
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65 (struct SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));
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66 }
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67 if (!device || !device->driverdata) {
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68 SDL_OutOfMemory();
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69 if (device) {
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70 SDL_free(device);
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71 }
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72 return NULL;
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73 }
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74
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75 /* Set the function pointers */
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76 device->VideoInit = WIN_VideoInit;
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77 device->SetDisplayMode = WIN_SetDisplayMode;
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78 device->VideoQuit = WIN_VideoQuit;
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79 device->PumpEvents = WIN_PumpEvents;
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80
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81 #undef CreateWindow
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82 device->CreateWindow = WIN_CreateWindow;
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83 device->CreateWindowFrom = WIN_CreateWindowFrom;
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84 device->SetWindowTitle = WIN_SetWindowTitle;
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85 device->SetWindowPosition = WIN_SetWindowPosition;
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86 device->SetWindowSize = WIN_SetWindowSize;
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87 device->ShowWindow = WIN_ShowWindow;
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88 device->HideWindow = WIN_HideWindow;
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89 device->RaiseWindow = WIN_RaiseWindow;
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90 device->MaximizeWindow = WIN_MaximizeWindow;
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91 device->MinimizeWindow = WIN_MinimizeWindow;
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92 device->RestoreWindow = WIN_RestoreWindow;
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93 device->SetWindowGrab = WIN_SetWindowGrab;
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94 device->DestroyWindow = WIN_DestroyWindow;
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95 device->GetWindowWMInfo = WIN_GetWindowWMInfo;
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96
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97 device->free = WIN_DeleteDevice;
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98
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99 return device;
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100 }
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101
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102 VideoBootStrap WIN32_bootstrap = {
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103 "win32", "SDL Win32/64 video driver",
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104 WIN_Available, WIN_CreateDevice
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105 };
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106
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107
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108 int
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109 WIN_VideoInit(_THIS)
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110 {
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111 int bmi_size;
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112 LPBITMAPINFO bmi;
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113 SDL_DisplayMode mode;
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114
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115 /* Find out the desktop mode */
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116 mode.format = SDL_PixelFormat_Unknown;
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117 mode.w = GetSystemMetrics(SM_CXSCREEN);
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118 mode.h = GetSystemMetrics(SM_CYSCREEN);
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119 mode.refresh_rate = 0;
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120
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121 bmi_size = sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD);
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122 bmi = (LPBITMAPINFO) SDL_malloc(bmi_size);
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123 if (bmi) {
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124 HDC hdc;
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125 HBITMAP hbm;
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126
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127 SDL_memset(bmi, 0, bmi_size);
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128 bmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
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129 hdc = GetDC(NULL);
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130 hbm = CreateCompatibleBitmap(hdc, 1, 1);
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131 GetDIBits(hdc, hbm, 0, 1, NULL, bmi, DIB_RGB_COLORS);
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132 GetDIBits(hdc, hbm, 0, 1, NULL, bmi, DIB_RGB_COLORS);
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133 DeleteObject(hbm);
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134 ReleaseDC(NULL, hdc);
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135 if (bmi->bmiHeader.biCompression == BI_BITFIELDS) {
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136 switch (*(Uint32 *) bmi->bmiColors) {
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137 case 0x00FF0000:
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138 mode.format = SDL_PixelFormat_RGB888;
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139 break;
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140 case 0x000000FF:
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141 mode.format = SDL_PixelFormat_BGR888;
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142 break;
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143 case 0xF800:
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144 mode.format = SDL_PixelFormat_RGB565;
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145 break;
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146 case 0x7C00:
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147 mode.format = SDL_PixelFormat_RGB555;
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148 break;
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149 }
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150 } else if (bmi->bmiHeader.biBitCount == 8) {
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151 mode.format = SDL_PixelFormat_Index8;
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152 }
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153 }
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154 SDL_AddBasicVideoDisplay(&mode);
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155 SDL_AddRenderDriver(0, &SDL_DIB_RenderDriver);
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156
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157 SDL_zero(mode);
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158 SDL_AddDisplayMode(0, &mode);
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159
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160 WIN_AddKeyboard(_this);
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161 WIN_AddMouse(_this);
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162
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163 /* We're done! */
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164 return 0;
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165 }
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166
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167 static int
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168 WIN_SetDisplayMode(_THIS, const SDL_DisplayMode * mode)
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169 {
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170 SDL_CurrentDisplay.current_mode = *mode;
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171 return 0;
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172 }
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173
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174 void
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175 WIN_VideoQuit(_THIS)
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176 {
1724
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177 WIN_DelKeyboard(_this);
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178 WIN_DelMouse(_this);
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179 }
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180
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181 /* vim: set ts=4 sw=4 expandtab: */