1 | #include "capturewindow.h" |
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2 | |
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3 | #if defined(__linux__) |
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4 | |
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5 | #include <X11/Xutil.h> |
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6 | #include <sys/shm.h> |
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7 | #include <X11/extensions/XShm.h> |
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8 | #include <X11/extensions/Xfixes.h> |
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9 | |
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10 | struct x11_grab |
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11 | { |
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12 | int frame_size; /* Size in bytes of a grabbed frame */ |
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13 | int height; /* Height of the grab frame */ |
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14 | int width; /* Width of the grab frame */ |
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15 | int x_off; /* Horizontal top-left corner coordinate */ |
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16 | int y_off; /* Vertical top-left corner coordinate */ |
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17 | |
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18 | Display *dpy; /* X11 display from which x11grab grabs frames */ |
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19 | XImage *image; /* X11 image holding the grab */ |
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20 | int use_shm; /* !0 when using XShm extension */ |
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21 | XShmSegmentInfo shminfo; /* When using XShm, keeps track of XShm infos */ |
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22 | int nomouse; |
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23 | }; |
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24 | |
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25 | struct x11_grab *x11grab; |
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26 | |
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27 | #endif |
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28 | |
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29 | #if defined(WIN32) |
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30 | HWND hDesktopWnd; |
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31 | HDC hDesktopDC; |
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32 | HDC hCaptureDC; |
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33 | HBITMAP hCaptureBitmap; |
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34 | void* pBits = NULL; |
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35 | #endif |
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36 | |
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37 | // headers for SAGE |
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38 | #include "sail.h" |
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39 | #include "misc.h" |
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40 | |
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41 | // Compression |
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42 | #include "libdxt.h" |
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43 | |
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44 | // headers for SAGE |
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45 | GLubyte *rgbBuffer = NULL; |
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46 | GLubyte *dxtBuffer = NULL; |
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47 | sail sageInf; |
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48 | sailConfig scfg; |
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49 | |
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50 | |
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51 | CaptureWindow::CaptureWindow(QWidget *parent) : |
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52 | QMainWindow(parent) |
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53 | { |
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54 | dxt_aInitialize(); |
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55 | |
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56 | // Build the UI |
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57 | ui.setupUi(this); |
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58 | ui.statusBar->showMessage(QString("Desktop capture"), 0); |
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59 | |
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60 | // Disable DXT for now |
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61 | ui.checkBox->setEnabled(false); |
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62 | |
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63 | // Get dimensions |
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64 | QDesktopWidget *desktop = QApplication::desktop(); |
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65 | WW = desktop->width(); |
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66 | HH = desktop->height(); |
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67 | sage::printLog("QSHARE> Desktop width %d height %d", WW, HH); |
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68 | |
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69 | // Set private variable |
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70 | fps = 25; |
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71 | started = false; |
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72 | dxt = false; |
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73 | count = 0; |
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74 | showcursor = true; |
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75 | |
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76 | #if defined(__APPLE__) |
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77 | ///////////////////////// |
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78 | // Get the OpenGL context |
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79 | CGLPixelFormatObj pixelFormatObj ; |
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80 | GLint numPixelFormats ; |
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81 | CGDirectDisplayID displayId = CGMainDisplayID(); |
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82 | CGRect dRect = CGDisplayBounds( displayId ); |
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83 | WW = dRect.size.width; |
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84 | HH = dRect.size.height; |
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85 | CGOpenGLDisplayMask displayMask = CGDisplayIDToOpenGLDisplayMask(displayId); |
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86 | |
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87 | CGLPixelFormatAttribute attribs[] = |
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88 | { |
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89 | (CGLPixelFormatAttribute)kCGLPFAFullScreen, |
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90 | (CGLPixelFormatAttribute)kCGLPFADisplayMask, |
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91 | (CGLPixelFormatAttribute)displayMask, |
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92 | (CGLPixelFormatAttribute)0 |
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93 | }; |
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94 | CGLChoosePixelFormat( attribs, &pixelFormatObj, &numPixelFormats ); |
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95 | CGLCreateContext( pixelFormatObj, NULL, &glContextObj ) ; |
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96 | CGLDestroyPixelFormat( pixelFormatObj ) ; |
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97 | CGLSetCurrentContext( glContextObj ) ; |
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98 | glReadBuffer(GL_FRONT); |
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99 | CGLSetFullScreen( glContextObj ) ;///UUUUUUUUUUnbelievable |
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100 | CGLSetCurrentContext( NULL ); |
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101 | qDebug() << "W " << WW << " H" << HH; |
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102 | ///////////////////////// |
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103 | #endif |
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104 | |
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105 | #if defined(__linux__) |
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106 | // |
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107 | // Initialize x11 frame grabber |
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108 | // |
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109 | Display *dpy; |
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110 | XImage *image; |
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111 | int use_shm; |
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112 | |
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113 | x11grab = (struct x11_grab*)malloc(sizeof(struct x11_grab)); |
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114 | memset(x11grab, 0, sizeof(struct x11_grab)); |
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115 | |
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116 | dpy = XOpenDisplay(0); |
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117 | if(!dpy) { |
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118 | sage::printLog("QSHARE> Could not open X display"); |
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119 | } |
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120 | |
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121 | use_shm = XShmQueryExtension(dpy); |
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122 | sage::printLog("QSHARE> shared memory extension %s found", use_shm ? "" : "not"); |
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123 | |
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124 | if(use_shm) { |
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125 | int scr = XDefaultScreen(dpy); |
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126 | image = XShmCreateImage(dpy, |
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127 | DefaultVisual(dpy, scr), |
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128 | DefaultDepth(dpy, scr), |
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129 | ZPixmap, |
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130 | NULL, |
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131 | &x11grab->shminfo, |
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132 | WW, HH); |
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133 | sage::printLog("QSHARE> Image: widht %d height %d bytes_per_line %d, depth %d", image->width,image->height,image->bytes_per_line, DefaultDepth(dpy, scr)); |
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134 | x11grab->shminfo.shmid = shmget(IPC_PRIVATE, |
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135 | image->bytes_per_line * image->height, |
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136 | IPC_CREAT|0777); |
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137 | if (x11grab->shminfo.shmid == -1) { |
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138 | sage::printLog("QSHARE> Fatal: Can't get shared memory!"); |
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139 | } |
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140 | x11grab->shminfo.shmaddr = image->data = (char*)shmat(x11grab->shminfo.shmid, 0, 0); |
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141 | x11grab->shminfo.readOnly = False; |
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142 | |
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143 | if (!XShmAttach(dpy, &x11grab->shminfo)) { |
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144 | sage::printLog("QSHARE> Fatal: Failed to attach shared memory!"); |
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145 | } |
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146 | } else { |
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147 | image = XGetImage(dpy, RootWindow(dpy, DefaultScreen(dpy)), |
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148 | 0, 0, WW, HH, |
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149 | AllPlanes, ZPixmap); |
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150 | } |
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151 | |
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152 | switch (image->bits_per_pixel) { |
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153 | case 8: |
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154 | sage::printLog("QSHARE> 8 bit palette"); |
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155 | //input_pixfmt = PIX_FMT_PAL8; |
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156 | break; |
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157 | case 16: |
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158 | if ( image->red_mask == 0xf800 && |
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159 | image->green_mask == 0x07e0 && |
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160 | image->blue_mask == 0x001f ) { |
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161 | sage::printLog("QSHARE> 16 bit RGB565"); |
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162 | //input_pixfmt = PIX_FMT_RGB565; |
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163 | } else if (image->red_mask == 0x7c00 && |
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164 | image->green_mask == 0x03e0 && |
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165 | image->blue_mask == 0x001f ) { |
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166 | sage::printLog("QSHARE> 16 bit RGB555"); |
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167 | //input_pixfmt = PIX_FMT_RGB555; |
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168 | } else { |
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169 | sage::printLog("QSHARE> RGB ordering at image depth %i not supported ... aborting\n", image->bits_per_pixel); |
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170 | sage::printLog("QSHARE> color masks: r 0x%.6lx g 0x%.6lx b 0x%.6lx\n", image->red_mask, image->green_mask, image->blue_mask); |
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171 | } |
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172 | break; |
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173 | case 24: |
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174 | if ( image->red_mask == 0xff0000 && |
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175 | image->green_mask == 0x00ff00 && |
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176 | image->blue_mask == 0x0000ff ) { |
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177 | sage::printLog("QSHARE> 24 bit BGR24"); |
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178 | //input_pixfmt = PIX_FMT_BGR24; |
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179 | } else if ( image->red_mask == 0x0000ff && |
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180 | image->green_mask == 0x00ff00 && |
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181 | image->blue_mask == 0xff0000 ) { |
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182 | sage::printLog("QSHARE> 24 bit RGB24"); |
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183 | //input_pixfmt = PIX_FMT_RGB24; |
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184 | } else { |
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185 | sage::printLog("QSHARE> rgb ordering at image depth %i not supported ... aborting", image->bits_per_pixel); |
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186 | sage::printLog("QSHARE> color masks: r 0x%.6lx g 0x%.6lx b 0x%.6lx", image->red_mask, image->green_mask, image->blue_mask); |
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187 | } |
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188 | break; |
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189 | case 32: |
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190 | sage::printLog("QSHARE> 32 bit RGB32"); |
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191 | //input_pixfmt = PIX_FMT_RGB32; |
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192 | break; |
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193 | default: |
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194 | sage::printLog("QSHARE> image depth %i not supported ... aborting", image->bits_per_pixel); |
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195 | } |
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196 | x11grab->nomouse = 1; |
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197 | x11grab->frame_size = WW * HH * image->bits_per_pixel/8; |
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198 | x11grab->dpy = dpy; |
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199 | x11grab->width = WW; |
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200 | x11grab->height = HH; |
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201 | x11grab->x_off = 0; |
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202 | x11grab->y_off = 0; |
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203 | x11grab->image = image; |
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204 | x11grab->use_shm = use_shm; |
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205 | #endif |
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206 | |
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207 | #if defined(WIN32) |
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208 | BITMAPINFO bmpInfo; |
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209 | ZeroMemory(&bmpInfo,sizeof(BITMAPINFO)); |
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210 | bmpInfo.bmiHeader.biSize=sizeof(BITMAPINFOHEADER); |
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211 | bmpInfo.bmiHeader.biBitCount=24;//BITSPERPIXEL; |
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212 | bmpInfo.bmiHeader.biCompression = BI_RGB; |
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213 | bmpInfo.bmiHeader.biWidth=WW; |
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214 | bmpInfo.bmiHeader.biHeight=HH; |
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215 | bmpInfo.bmiHeader.biPlanes=1; |
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216 | bmpInfo.bmiHeader.biSizeImage=abs(bmpInfo.bmiHeader.biHeight)*bmpInfo.bmiHeader.biWidth*bmpInfo.bmiHeader.biBitCount/8; |
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217 | |
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218 | hDesktopWnd = GetDesktopWindow(); |
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219 | hDesktopDC = GetDC(hDesktopWnd); |
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220 | hCaptureDC = CreateCompatibleDC(hDesktopDC); |
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221 | hCaptureBitmap = CreateDIBSection(hDesktopDC,&bmpInfo,DIB_RGB_COLORS,&pBits,NULL,0); |
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222 | SelectObject(hCaptureDC,hCaptureBitmap); |
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223 | #endif |
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224 | |
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225 | // Enables buttons |
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226 | ui.pushButton->setEnabled(true); |
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227 | ui.pushButton_2->setEnabled(false); |
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228 | ui.pushButton_3->setEnabled(false); |
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229 | |
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230 | // Load the pointer |
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231 | cursor_icon = new QImage("arrow2.png"); |
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232 | |
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233 | // Load SAIL config |
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234 | scfg.init((char*)"qshare.conf"); |
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235 | scfg.setAppName((char*)"qshare"); |
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236 | |
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237 | fsip = QString(scfg.fsIP); |
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238 | qDebug() << "FSIP " << fsip; |
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239 | ui.lineEdit->setText(fsip); |
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240 | |
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241 | // Timer setup |
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242 | timer = new QTimer(this); |
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243 | connect(timer, SIGNAL(timeout()), this, SLOT(update())); |
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244 | } |
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245 | |
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246 | void CaptureWindow::closeEvent(QCloseEvent *event) |
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247 | { |
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248 | #if defined(__linux__) |
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249 | // |
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250 | // Close x11 frame grabber |
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251 | // |
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252 | |
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253 | // Detach cleanly from shared mem |
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254 | // if (x11grab && x11grab->use_shm) { |
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255 | // XShmDetach(x11grab->dpy, &x11grab->shminfo); |
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256 | // shmdt(x11grab->shminfo.shmaddr); |
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257 | // shmctl(x11grab->shminfo.shmid, IPC_RMID, NULL); |
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258 | // } |
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259 | |
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260 | // Destroy X11 image |
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261 | // if (x11grab && x11grab->image) { |
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262 | // XDestroyImage(x11grab->image); |
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263 | // x11grab->image = NULL; |
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264 | // } |
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265 | |
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266 | // Free X11 display |
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267 | // if (x11grab) |
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268 | // XCloseDisplay(x11grab->dpy); |
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269 | #endif |
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270 | onStop(); |
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271 | event->accept(); |
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272 | } |
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273 | |
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274 | void CaptureWindow::frameRate(int f) |
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275 | { |
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276 | fps = f; |
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277 | qDebug() << "framerate " << fps; |
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278 | timer->setInterval(1000/fps); |
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279 | } |
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280 | |
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281 | |
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282 | void CaptureWindow::fsIP(QString f) |
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283 | { |
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284 | fsip = f; |
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285 | qDebug() << "FSIP changed" << fsip; |
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286 | } |
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287 | |
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288 | void CaptureWindow::update() |
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289 | { |
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290 | if (started) { |
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291 | |
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292 | // Capture the desktop pixels |
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293 | capture((char*)rgbBuffer,0,0,WW,HH); |
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294 | |
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295 | if (showcursor) { |
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296 | // Get mouse position |
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297 | QPoint pt = QCursor::pos(); |
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298 | |
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299 | // Flip the Y value |
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300 | int adjust = HH - pt.y(); |
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301 | if (adjust < 0) adjust = 0; |
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302 | pt.setY(adjust); |
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303 | |
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304 | // Compute boundaries |
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305 | int startx = MAX(0,pt.x()); |
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306 | // int starty = MAX(0, pt.y()-cursor_icon->height()); |
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307 | int starty = pt.y()-cursor_icon->height(); |
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308 | |
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309 | // Compose desktop with cursor |
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310 | QImage resultImage = QImage((uchar*)rgbBuffer, WW, HH, QImage::Format_RGB888); |
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311 | QPainter painter(&resultImage); |
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312 | painter.setCompositionMode(QPainter::CompositionMode_SourceOver); |
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313 | painter.drawImage(startx, starty, *cursor_icon); |
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314 | painter.end(); |
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315 | // rgbBuffer is filled after that point |
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316 | } |
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317 | |
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318 | if (dxt) |
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319 | { |
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320 | CompressDXT(rgbBuffer, dxtBuffer, WW, HH, FORMAT_DXT1, 1); |
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321 | sageInf.swapBuffer(); |
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322 | dxtBuffer = (GLubyte *)sageInf.getBuffer(); |
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323 | } |
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324 | else |
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325 | { |
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326 | sageInf.swapBuffer(); |
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327 | rgbBuffer = (GLubyte *)sageInf.getBuffer(); |
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328 | } |
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329 | |
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330 | sageMessage msg; |
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331 | if (sageInf.checkMsg(msg, false) > 0) { |
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332 | switch (msg.getCode()) { |
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333 | case APP_QUIT: |
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334 | exit(1); |
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335 | break; |
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336 | } |
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337 | } |
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338 | |
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339 | |
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340 | QString str; |
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341 | double nowt = dxt_aTime(); |
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342 | //qDebug() << "now " << nowt << " startt" << startt; |
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343 | double dfps = 1.0 / (nowt - startt); |
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344 | str = QString("%1 ms / %2 fps/ # %3 / DXT %4 / %5x%6").arg(nowt-startt,5,'f',1).arg(dfps,5,'f',1).arg(count++).arg(dxt).arg(WW).arg(HH); |
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345 | ui.statusBar->showMessage( str, 0 ); |
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346 | |
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347 | #if 1 |
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348 | if (dfps < fps) { |
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349 | timer->start( MAX(0, (2*(1000/fps)-(1000/dfps) ) ) ); |
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350 | } |
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351 | else |
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352 | timer->start(1000/fps); |
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353 | #else |
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354 | timer->start(0); |
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355 | #endif |
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356 | startt = nowt; |
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357 | } |
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358 | } |
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359 | |
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360 | void CaptureWindow::capture(char* m_pFrameRGB,int x,int y,int cx,int cy) |
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361 | { |
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362 | #if defined(__APPLE__) |
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363 | CGLSetCurrentContext( glContextObj ) ; |
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364 | //CGLSetFullScreen( glContextObj ) ;///UUUUUUUUUUnbelievable |
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365 | //glReadBuffer(GL_FRONT); |
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366 | |
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367 | if (dxt) |
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368 | glReadPixels(x,y,cx,cy,GL_RGBA,GL_UNSIGNED_BYTE,m_pFrameRGB); |
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369 | else |
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370 | glReadPixels(x,y,cx,cy,GL_RGB,GL_UNSIGNED_BYTE,m_pFrameRGB); |
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371 | |
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372 | CGLSetCurrentContext( NULL ); |
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373 | #endif |
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374 | |
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375 | #if defined(__linux__) |
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376 | if (x11grab->use_shm) { |
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377 | if (!XShmGetImage(x11grab->dpy, RootWindow(x11grab->dpy, DefaultScreen(x11grab->dpy)), |
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378 | x11grab->image, 0, 0, AllPlanes)) { |
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379 | sage::printLog("QSHARE> XShmGetImage() failed"); |
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380 | } |
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381 | else { |
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382 | // Upside-down and RGBA-to-RGB conversion |
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383 | for (int i = 0 ; i < cy; i++) { |
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384 | for (int j = 0 ; j < cx; j++) { |
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385 | m_pFrameRGB [ (i*cx+j) * 3 + 0 ] = x11grab->image->data [ ((cy-i-1)*cx+j) * 4 + 2 ]; |
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386 | m_pFrameRGB [ (i*cx+j) * 3 + 1 ] = x11grab->image->data [ ((cy-i-1)*cx+j) * 4 + 1 ]; |
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387 | m_pFrameRGB [ (i*cx+j) * 3 + 2 ] = x11grab->image->data [ ((cy-i-1)*cx+j) * 4 + 0 ]; |
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388 | } |
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389 | } |
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390 | } |
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391 | } |
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392 | #endif |
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393 | |
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394 | #if defined(WIN32) |
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395 | BitBlt(hCaptureDC,0,0,WW,HH,hDesktopDC,0,0,SRCCOPY|CAPTUREBLT); |
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396 | memcpy(m_pFrameRGB, pBits, WW*HH*3); |
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397 | #endif |
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398 | } |
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399 | |
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400 | void CaptureWindow::onStart() |
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401 | { |
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402 | if (! started) { |
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403 | ui.pushButton->setEnabled(false); |
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404 | ui.pushButton_2->setEnabled(true); |
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405 | ui.pushButton_3->setEnabled(true); |
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406 | ui.lineEdit->setEnabled(false); |
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407 | ui.spinBox->setEnabled(true); |
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408 | ui.checkBox->setEnabled(false); |
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409 | |
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410 | qDebug() << "On Start"; |
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411 | |
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412 | sageRect ishareImageMap; |
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413 | ishareImageMap.left = 0.0; |
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414 | ishareImageMap.right = 1.0; |
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415 | ishareImageMap.bottom = 0.0; |
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416 | ishareImageMap.top = 1.0; |
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417 | |
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418 | scfg.rank = 0; |
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419 | scfg.resX = WW; |
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420 | scfg.resY = HH; |
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421 | scfg.winWidth = WW; |
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422 | scfg.winHeight = HH; |
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423 | scfg.imageMap = ishareImageMap; |
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424 | |
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425 | // Copy back the text box into the SAGE variable |
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426 | memset(scfg.fsIP, 0, SAGE_IP_LEN); |
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427 | strncpy(scfg.fsIP, fsip.toAscii().constData(), SAGE_IP_LEN); |
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428 | |
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429 | if (dxt) |
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430 | scfg.pixFmt = PIXFMT_DXT; |
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431 | else |
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432 | #if defined(WIN32) |
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433 | scfg.pixFmt = PIXFMT_888_INV; // for some reasons, win32 is BGR |
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434 | #else |
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435 | scfg.pixFmt = PIXFMT_888; |
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436 | #endif |
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437 | |
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438 | scfg.rowOrd = BOTTOM_TO_TOP; |
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439 | scfg.master = true; |
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440 | |
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441 | sageInf.init(scfg); |
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442 | |
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443 | if (dxt) { |
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444 | dxtBuffer = (GLubyte *)sageInf.getBuffer(); |
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445 | if (rgbBuffer) delete [] rgbBuffer; |
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446 | rgbBuffer = (byte*)memalign(16, WW*HH*4); |
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447 | memset(rgbBuffer, 0, WW*HH*4); |
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448 | } |
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449 | else { |
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450 | rgbBuffer = (GLubyte *)sageInf.getBuffer(); |
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451 | } |
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452 | |
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453 | |
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454 | started = true; |
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455 | timer->setSingleShot(true); |
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456 | timer->start(1000/fps); |
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457 | //timer->start(); |
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458 | |
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459 | startt = dxt_aTime(); |
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460 | } |
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461 | } |
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462 | |
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463 | void CaptureWindow::compression(int c) |
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464 | { |
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465 | dxt = c; |
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466 | } |
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467 | |
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468 | void CaptureWindow::cursor(int c) |
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469 | { |
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470 | showcursor = c; |
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471 | } |
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472 | |
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473 | void CaptureWindow::onStop() |
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474 | { |
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475 | qDebug() << "On Stop"; |
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476 | started = false; |
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477 | timer->stop(); |
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478 | ui.pushButton->setEnabled(true); |
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479 | ui.pushButton_2->setEnabled(false); |
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480 | ui.pushButton_3->setEnabled(false); |
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481 | ui.lineEdit->setEnabled(true); |
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482 | ui.spinBox->setEnabled(true); |
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483 | ui.checkBox->setEnabled(true); |
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484 | sageInf.shutdown(); |
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485 | } |
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486 | |
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487 | void CaptureWindow::onPause() |
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488 | { |
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489 | if (started) { |
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490 | qDebug() << "Pause"; |
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491 | started = false; |
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492 | timer->stop(); |
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493 | } |
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494 | else { |
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495 | qDebug() << "UnPause"; |
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496 | started = true; |
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497 | timer->start(1000/fps); |
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498 | } |
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499 | } |
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500 | |
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501 | |
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502 | ///////////////////////////////////////////////////////////////////////// |
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503 | |
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