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annotate src/video/qtopia/SDL_sysvideo.cc @ 1684:c4aa1a2f48f1 SDL-1.3

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Software YUV texture support in progress...
author Sam Lantinga <slouken@libsdl.org>
date Sun, 18 Jun 2006 06:35:41 +0000
parents 4da1ee79c9af
children
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 /* Qtopia based framebuffer implementation */
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25
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26 #include <unistd.h>
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28 #include <qapplication.h>
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29 #include <qpe/qpeapplication.h>
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30
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31 #include "SDL_timer.h"
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32
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33 #include "SDL_QWin.h"
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34
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35 extern "C"
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36 {
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37
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38 #include "../SDL_sysvideo.h"
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39 #include "../../events/SDL_events_c.h"
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40 #include "SDL_sysevents_c.h"
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41 #include "SDL_sysmouse_c.h"
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42 #include "SDL_syswm_c.h"
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43 #include "SDL_lowvideo.h"
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44
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45 //#define QTOPIA_DEBUG
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46 #define QT_HIDDEN_SIZE 32 /* starting hidden window size */
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47
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48 /* Name of the environment variable used to invert the screen rotation or not:
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49 Possible values:
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50 !=0 : Screen is 270° rotated
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51 0: Screen is 90° rotated */
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52 #define SDL_QT_ROTATION_ENV_NAME "SDL_QT_INVERT_ROTATION"
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53
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54 /* Initialization/Query functions */
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55 static int QT_VideoInit(_THIS, SDL_PixelFormat * vformat);
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56 static SDL_Rect **QT_ListModes(_THIS, SDL_PixelFormat * format,
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57 Uint32 flags);
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58 static SDL_Surface *QT_SetVideoMode(_THIS, SDL_Surface * current,
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59 int width, int height, int bpp,
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60 Uint32 flags);
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61 static void QT_UpdateMouse(_THIS);
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62 static int QT_SetColors(_THIS, int firstcolor, int ncolors,
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63 SDL_Color * colors);
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64 static void QT_VideoQuit(_THIS);
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65
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66 /* Hardware surface functions */
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67 static int QT_AllocHWSurface(_THIS, SDL_Surface * surface);
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68 static int QT_LockHWSurface(_THIS, SDL_Surface * surface);
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69 static void QT_UnlockHWSurface(_THIS, SDL_Surface * surface);
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70 static void QT_FreeHWSurface(_THIS, SDL_Surface * surface);
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71
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72 static int QT_ToggleFullScreen(_THIS, int fullscreen);
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73
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74 static int QT_IconifyWindow(_THIS);
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75 static SDL_GrabMode QT_GrabInput(_THIS, SDL_GrabMode mode);
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76
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77 /* FB driver bootstrap functions */
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78
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79 static int QT_Available(void)
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80 {
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81 return (1);
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82 }
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83
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84 static void QT_DeleteDevice(SDL_VideoDevice * device)
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85 {
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86 SDL_free(device->hidden);
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87 SDL_free(device);
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88 }
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89
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90 static SDL_VideoDevice *QT_CreateDevice(int devindex)
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91 {
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92 SDL_VideoDevice *device;
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93
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94 /* Initialize all variables that we clean on shutdown */
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95 device = (SDL_VideoDevice *) SDL_malloc(sizeof(SDL_VideoDevice));
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96 if (device) {
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97 SDL_memset(device, 0, (sizeof *device));
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98 device->hidden = (struct SDL_PrivateVideoData *)
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99 SDL_malloc((sizeof *device->hidden));
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100 }
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101 if ((device == NULL) || (device->hidden == NULL)) {
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102 SDL_OutOfMemory();
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103 if (device) {
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104 SDL_free(device);
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105 }
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106 return (0);
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107 }
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108 SDL_memset(device->hidden, 0, (sizeof *device->hidden));
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109
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110 /* Set the function pointers */
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111 device->VideoInit = QT_VideoInit;
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112 device->ListModes = QT_ListModes;
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113 device->SetVideoMode = QT_SetVideoMode;
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114 device->UpdateMouse = QT_UpdateMouse;
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115 device->SetColors = QT_SetColors;
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116 device->UpdateRects = NULL;
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117 device->VideoQuit = QT_VideoQuit;
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118 device->AllocHWSurface = QT_AllocHWSurface;
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119 device->CheckHWBlit = NULL;
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120 device->FillHWRect = NULL;
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121 device->SetHWColorKey = NULL;
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122 device->SetHWAlpha = NULL;
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123 device->LockHWSurface = QT_LockHWSurface;
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124 device->UnlockHWSurface = QT_UnlockHWSurface;
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125 device->FlipHWSurface = NULL;
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126 device->FreeHWSurface = QT_FreeHWSurface;
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127 device->SetIcon = NULL;
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128 device->SetCaption = QT_SetWMCaption;
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129 device->IconifyWindow = QT_IconifyWindow;
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130 device->GrabInput = QT_GrabInput;
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131 device->GetWMInfo = NULL;
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132 device->FreeWMCursor = QT_FreeWMCursor;
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133 device->CreateWMCursor = QT_CreateWMCursor;
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134 device->ShowWMCursor = QT_ShowWMCursor;
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135 device->WarpWMCursor = QT_WarpWMCursor;
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136 device->InitOSKeymap = QT_InitOSKeymap;
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137 device->PumpEvents = QT_PumpEvents;
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138
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139 device->free = QT_DeleteDevice;
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140 device->ToggleFullScreen = QT_ToggleFullScreen;
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141
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142 /* Set the driver flags */
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143 device->handles_any_size = 0;
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144
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145 return device;
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146 }
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147
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148 VideoBootStrap Qtopia_bootstrap = {
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149 "qtopia", "Qtopia / QPE graphics",
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150 QT_Available, QT_CreateDevice
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151 };
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152
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153 /* Function to sort the display_list */
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154 static int CompareModes(const void *A, const void *B)
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155 {
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156 #if 0
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157 const display_mode *a = (display_mode *) A;
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158 const display_mode *b = (display_mode *) B;
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159
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160 if (a->space == b->space) {
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161 return ((b->virtual_width * b->virtual_height) -
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162 (a->virtual_width * a->virtual_height));
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163 } else {
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164 return (ColorSpaceToBitsPerPixel(b->space) -
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165 ColorSpaceToBitsPerPixel(a->space));
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166 }
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167 #endif
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168 return 0;
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169 }
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170
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171 /* Yes, this isn't the fastest it could be, but it works nicely */
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172 static int QT_AddMode(_THIS, int index, unsigned int w, unsigned int h)
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173 {
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174 SDL_Rect *mode;
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175 int i;
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176 int next_mode;
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177
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178 /* Check to see if we already have this mode */
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179 if (SDL_nummodes[index] > 0) {
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180 for (i = SDL_nummodes[index] - 1; i >= 0; --i) {
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181 mode = SDL_modelist[index][i];
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182 if ((mode->w == w) && (mode->h == h)) {
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183 return (0);
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184 }
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185 }
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186 }
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187
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188 /* Set up the new video mode rectangle */
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189 mode = (SDL_Rect *) SDL_malloc(sizeof *mode);
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190 if (mode == NULL) {
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191 SDL_OutOfMemory();
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192 return (-1);
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193 }
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194 mode->x = 0;
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195 mode->y = 0;
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196 mode->w = w;
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197 mode->h = h;
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198 #ifdef QTOPIA_DEBUG
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199 fprintf(stderr, "Adding mode %dx%d at %d bytes per pixel\n", w, h,
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200 index + 1);
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201 #endif
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202
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203 /* Allocate the new list of modes, and fill in the new mode */
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204 next_mode = SDL_nummodes[index];
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205 SDL_modelist[index] = (SDL_Rect **)
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206 SDL_realloc(SDL_modelist[index],
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207 (1 + next_mode + 1) * sizeof(SDL_Rect *));
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208 if (SDL_modelist[index] == NULL) {
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209 SDL_OutOfMemory();
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210 SDL_nummodes[index] = 0;
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211 SDL_free(mode);
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212 return (-1);
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213 }
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214 SDL_modelist[index][next_mode] = mode;
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215 SDL_modelist[index][next_mode + 1] = NULL;
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216 SDL_nummodes[index]++;
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217
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218 return (0);
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219 }
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220
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221 int QT_VideoInit(_THIS, SDL_PixelFormat * vformat)
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222 {
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223 /* Initialize the QPE Application */
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224 /* Determine the screen depth */
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225 vformat->BitsPerPixel = QPixmap::defaultDepth();
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226
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227 // For now we hardcode the current depth because anything else
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228 // might as well be emulated by SDL rather than by Qtopia.
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229
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230 QSize desktop_size = qApp->desktop()->size();
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231 QT_AddMode(_this, ((vformat->BitsPerPixel + 7) / 8) - 1,
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232 desktop_size.width(), desktop_size.height());
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233 QT_AddMode(_this, ((vformat->BitsPerPixel + 7) / 8) - 1,
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234 desktop_size.height(), desktop_size.width());
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235
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236 /* Determine the current screen size */
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237 this->info.current_w = desktop_size.width();
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238 this->info.current_h = desktop_size.height();
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239
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240 /* Create the window / widget */
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241 SDL_Win = new SDL_QWin(QSize(QT_HIDDEN_SIZE, QT_HIDDEN_SIZE));
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242 ((QPEApplication *) qApp)->showMainWidget(SDL_Win);
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243 /* Fill in some window manager capabilities */
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244 _this->info.wm_available = 0;
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245
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246 /* We're done! */
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247 return (0);
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248 }
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249
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250 /* We support any dimension at our bit-depth */
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251 SDL_Rect **QT_ListModes(_THIS, SDL_PixelFormat * format, Uint32 flags)
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252 {
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253 SDL_Rect **modes;
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254
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255 modes = ((SDL_Rect **) 0);
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256 if ((flags & SDL_FULLSCREEN) == SDL_FULLSCREEN) {
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257 modes = SDL_modelist[((format->BitsPerPixel + 7) / 8) - 1];
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258 } else {
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259 if (format->BitsPerPixel == _this->screen->format->BitsPerPixel) {
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260 modes = ((SDL_Rect **) - 1);
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261 }
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262 }
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263 return (modes);
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264 }
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265
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266 /* Various screen update functions available */
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267 static void QT_NormalUpdate(_THIS, int numrects, SDL_Rect * rects);
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268
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269
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270 static int QT_SetFullScreen(_THIS, SDL_Surface * screen, int fullscreen)
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271 {
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272 return -1;
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273 }
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274
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275 static int QT_ToggleFullScreen(_THIS, int fullscreen)
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276 {
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277 return -1;
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278 }
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279
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280 /* FIXME: check return values and cleanup here */
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281 SDL_Surface *QT_SetVideoMode(_THIS, SDL_Surface * current,
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282 int width, int height, int bpp, Uint32 flags)
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283 {
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284
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285 QImage *qimage;
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286 QSize desktop_size = qApp->desktop()->size();
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287
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288
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289 current->flags = 0; //SDL_FULLSCREEN; // We always run fullscreen.
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290
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291 if (width <= desktop_size.width()
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292 && height <= desktop_size.height()) {
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293 current->w = desktop_size.width();
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294 current->h = desktop_size.height();
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295 } else if (width <= desktop_size.height()
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296 && height <= desktop_size.width()) {
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297 // Landscape mode
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298 char *envString = SDL_getenv(SDL_QT_ROTATION_ENV_NAME);
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299 int envValue = envString ? atoi(envString) : 0;
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300 screenRotation =
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301 envValue ? SDL_QT_ROTATION_270 : SDL_QT_ROTATION_90;
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302 current->h = desktop_size.width();
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303 current->w = desktop_size.height();
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304 } else {
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305 SDL_SetError("Unsupported resolution, %dx%d\n", width, height);
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306 }
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307 if (flags & SDL_INTERNALOPENGL) {
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308 SDL_SetError("OpenGL not supported");
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309 return (NULL);
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310 }
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311 /* Create the QImage framebuffer */
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312 qimage = new QImage(current->w, current->h, bpp);
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313 if (qimage->isNull()) {
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314 SDL_SetError("Couldn't create screen bitmap");
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315 delete qimage;
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316 return (NULL);
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317 }
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318 current->pitch = qimage->bytesPerLine();
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319 current->pixels = (void *) qimage->bits();
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320 SDL_Win->setImage(qimage);
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321 _this->UpdateRects = QT_NormalUpdate;
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322 SDL_Win->setFullscreen(true);
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323 /* We're done */
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324 return (current);
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325 }
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326
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327 /* Update the current mouse state and position */
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328 void QT_UpdateMouse(_THIS)
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329 {
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330 QPoint point(-1, -1);
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331 if (SDL_Win->isActiveWindow()) {
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332 point = SDL_Win->mousePos();
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333 }
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334
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335 if ((point.x() >= 0) && (point.x() < SDL_VideoSurface->w) &&
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336 (point.y() >= 0) && (point.y() < SDL_VideoSurface->h)) {
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337 SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS);
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338 SDL_PrivateMouseMotion(0, 0,
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339 (Sint16) point.x(), (Sint16) point.y());
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340 } else {
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341 SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS);
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342 }
371
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343 }
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344
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345 /* We don't actually allow hardware surfaces other than the main one */
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346 static int QT_AllocHWSurface(_THIS, SDL_Surface * surface)
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347 {
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348 return (-1);
371
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349 }
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350 static void QT_FreeHWSurface(_THIS, SDL_Surface * surface)
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351 {
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352 return;
371
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353 }
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354 static int QT_LockHWSurface(_THIS, SDL_Surface * surface)
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355 {
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356 return (0);
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357 }
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358 static void QT_UnlockHWSurface(_THIS, SDL_Surface * surface)
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359 {
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360 return;
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361 }
371
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362
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363 static void QT_NormalUpdate(_THIS, int numrects, SDL_Rect * rects)
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364 {
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365 if (SDL_Win->lockScreen()) {
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366 for (int i = 0; i < numrects; ++i) {
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367 QRect rect(rects[i].x, rects[i].y, rects[i].w, rects[i].h);
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368 SDL_Win->repaintRect(rect);
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369 }
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370 SDL_Win->unlockScreen();
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371 }
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372 }
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373 /* Is the system palette settable? */
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374 int QT_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color * colors)
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375 {
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376 return -1;
371
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377 }
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378
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379 void QT_VideoQuit(_THIS)
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380 {
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381 // This is dumb, but if I free this, the app doesn't exit correctly.
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382 // Of course, this will leak memory if init video is done more than once.
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383 // Sucks but such is life.
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384
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385 // -- David Hedbor
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386 // delete SDL_Win;
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387 // SDL_Win = 0;
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388 _this->screen->pixels = NULL;
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389 QT_GrabInput(_this, SDL_GRAB_OFF);
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390 }
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391
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392 static int QT_IconifyWindow(_THIS)
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393 {
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394 SDL_Win->hide();
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395
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396 return true;
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397 }
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398
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399 static SDL_GrabMode QT_GrabInput(_THIS, SDL_GrabMode mode)
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400 {
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401 if (mode == SDL_GRAB_OFF) {
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402 QPEApplication::grabKeyboard();
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403 qApp->processEvents();
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404 QPEApplication::ungrabKeyboard();
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405 } else {
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406 QPEApplication::grabKeyboard();
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407 }
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408 qApp->processEvents();
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409 return mode;
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410 }
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411
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412 }; /* Extern C */
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413
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414 /* vi: set ts=4 sw=4 expandtab: */