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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the QtGui module of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 // Uncomment the next line to enable the MIT Shared Memory extension |
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43 // |
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44 // WARNING: This has some problems: |
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45 // |
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46 // 1. Consumes a 800x600 pixmap |
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47 // 2. Qt does not handle the ShmCompletion message, so you will |
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48 // get strange effects if you xForm() repeatedly. |
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49 // |
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50 // #define QT_MITSHM |
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51 |
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52 #if defined(Q_OS_WIN32) && defined(QT_MITSHM) |
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53 #undef QT_MITSHM |
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54 #endif |
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55 |
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56 #include "qplatformdefs.h" |
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57 |
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58 #include "qdebug.h" |
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59 #include "qiodevice.h" |
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60 #include "qpixmap_x11_p.h" |
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61 #include "qbitmap.h" |
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62 #include "qcolormap.h" |
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63 #include "qimage.h" |
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64 #include "qmatrix.h" |
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65 #include "qapplication.h" |
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66 #include <private/qpaintengine_x11_p.h> |
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67 #include <private/qt_x11_p.h> |
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68 #include "qx11info_x11.h" |
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69 #include <private/qdrawhelper_p.h> |
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70 #include <private/qimage_p.h> |
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71 |
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72 #include <stdlib.h> |
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73 |
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74 #if defined(Q_CC_MIPS) |
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75 # define for if(0){}else for |
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76 #endif |
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77 |
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78 QT_BEGIN_NAMESPACE |
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79 |
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80 QPixmap qt_toX11Pixmap(const QImage &image) |
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81 { |
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82 QPixmapData *data = |
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83 new QX11PixmapData(image.depth() == 1 |
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84 ? QPixmapData::BitmapType |
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85 : QPixmapData::PixmapType); |
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86 |
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87 data->fromImage(image, Qt::AutoColor); |
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88 |
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89 return QPixmap(data); |
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90 } |
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91 |
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92 QPixmap qt_toX11Pixmap(const QPixmap &pixmap) |
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93 { |
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94 if (pixmap.isNull()) |
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95 return QPixmap(); |
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96 |
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97 if (QPixmap(pixmap).data_ptr()->classId() == QPixmapData::X11Class) |
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98 return pixmap; |
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99 |
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100 return qt_toX11Pixmap(pixmap.toImage()); |
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101 } |
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102 |
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103 // For thread-safety: |
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104 // image->data does not belong to X11, so we must free it ourselves. |
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105 |
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106 inline static void qSafeXDestroyImage(XImage *x) |
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107 { |
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108 if (x->data) { |
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109 free(x->data); |
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110 x->data = 0; |
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111 } |
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112 XDestroyImage(x); |
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113 } |
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114 |
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115 QBitmap QX11PixmapData::mask_to_bitmap(int screen) const |
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116 { |
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117 if (!x11_mask) |
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118 return QBitmap(); |
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119 QPixmap::x11SetDefaultScreen(screen); |
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120 QBitmap bm(w, h); |
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121 GC gc = XCreateGC(X11->display, bm.handle(), 0, 0); |
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122 XCopyArea(X11->display, x11_mask, bm.handle(), gc, 0, 0, |
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123 bm.data->width(), bm.data->height(), 0, 0); |
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124 XFreeGC(X11->display, gc); |
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125 return bm; |
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126 } |
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127 |
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128 Qt::HANDLE QX11PixmapData::bitmap_to_mask(const QBitmap &bitmap, int screen) |
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129 { |
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130 if (bitmap.isNull()) |
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131 return 0; |
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132 QBitmap bm = bitmap; |
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133 bm.x11SetScreen(screen); |
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134 |
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135 Pixmap mask = XCreatePixmap(X11->display, RootWindow(X11->display, screen), |
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136 bm.data->width(), bm.data->height(), 1); |
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137 GC gc = XCreateGC(X11->display, mask, 0, 0); |
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138 XCopyArea(X11->display, bm.handle(), mask, gc, 0, 0, |
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139 bm.data->width(), bm.data->height(), 0, 0); |
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140 XFreeGC(X11->display, gc); |
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141 return mask; |
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142 } |
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143 |
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144 |
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145 /***************************************************************************** |
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146 MIT Shared Memory Extension support: makes xForm noticeably (~20%) faster. |
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147 *****************************************************************************/ |
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148 |
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149 #if defined(QT_MITSHM) |
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150 |
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151 static bool xshminit = false; |
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152 static XShmSegmentInfo xshminfo; |
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153 static XImage *xshmimg = 0; |
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154 static Pixmap xshmpm = 0; |
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155 |
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156 static void qt_cleanup_mitshm() |
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157 { |
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158 if (xshmimg == 0) |
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159 return; |
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160 Display *dpy = QX11Info::appDisplay(); |
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161 if (xshmpm) { |
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162 XFreePixmap(dpy, xshmpm); |
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163 xshmpm = 0; |
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164 } |
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165 XShmDetach(dpy, &xshminfo); xshmimg->data = 0; |
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166 qSafeXDestroyImage(xshmimg); xshmimg = 0; |
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167 shmdt(xshminfo.shmaddr); |
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168 shmctl(xshminfo.shmid, IPC_RMID, 0); |
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169 } |
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170 |
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171 static bool qt_create_mitshm_buffer(const QPaintDevice* dev, int w, int h) |
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172 { |
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173 static int major, minor; |
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174 static Bool pixmaps_ok; |
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175 Display *dpy = dev->data->xinfo->display(); |
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176 int dd = dev->x11Depth(); |
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177 Visual *vis = (Visual*)dev->x11Visual(); |
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178 |
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179 if (xshminit) { |
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180 qt_cleanup_mitshm(); |
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181 } else { |
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182 if (!XShmQueryVersion(dpy, &major, &minor, &pixmaps_ok)) |
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183 return false; // MIT Shm not supported |
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184 qAddPostRoutine(qt_cleanup_mitshm); |
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185 xshminit = true; |
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186 } |
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187 |
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188 xshmimg = XShmCreateImage(dpy, vis, dd, ZPixmap, 0, &xshminfo, w, h); |
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189 if (!xshmimg) |
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190 return false; |
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191 |
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192 bool ok; |
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193 xshminfo.shmid = shmget(IPC_PRIVATE, |
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194 xshmimg->bytes_per_line * xshmimg->height, |
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195 IPC_CREAT | 0777); |
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196 ok = xshminfo.shmid != -1; |
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197 if (ok) { |
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198 xshmimg->data = (char*)shmat(xshminfo.shmid, 0, 0); |
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199 xshminfo.shmaddr = xshmimg->data; |
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200 ok = (xshminfo.shmaddr != (char*)-1); |
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201 } |
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202 xshminfo.readOnly = false; |
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203 if (ok) |
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204 ok = XShmAttach(dpy, &xshminfo); |
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205 if (!ok) { |
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206 qSafeXDestroyImage(xshmimg); |
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207 xshmimg = 0; |
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208 if (xshminfo.shmaddr) |
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209 shmdt(xshminfo.shmaddr); |
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210 if (xshminfo.shmid != -1) |
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211 shmctl(xshminfo.shmid, IPC_RMID, 0); |
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212 return false; |
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213 } |
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214 if (pixmaps_ok) |
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215 xshmpm = XShmCreatePixmap(dpy, DefaultRootWindow(dpy), xshmimg->data, |
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216 &xshminfo, w, h, dd); |
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217 |
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218 return true; |
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219 } |
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220 |
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221 #else |
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222 |
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223 // If extern, need a dummy. |
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224 // |
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225 // static bool qt_create_mitshm_buffer(QPaintDevice*, int, int) |
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226 // { |
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227 // return false; |
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228 // } |
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229 |
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230 #endif // QT_MITSHM |
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231 |
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232 |
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233 /***************************************************************************** |
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234 Internal functions |
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235 *****************************************************************************/ |
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236 |
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237 extern const uchar *qt_get_bitflip_array(); // defined in qimage.cpp |
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238 |
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239 // Returns position of highest bit set or -1 if none |
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240 static int highest_bit(uint v) |
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241 { |
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242 int i; |
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243 uint b = (uint)1 << 31; |
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244 for (i=31; ((b & v) == 0) && i>=0; i--) |
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245 b >>= 1; |
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246 return i; |
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247 } |
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248 |
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249 // Returns position of lowest set bit in 'v' as an integer (0-31), or -1 |
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250 static int lowest_bit(uint v) |
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251 { |
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252 int i; |
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253 ulong lb; |
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254 lb = 1; |
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255 for (i=0; ((v & lb) == 0) && i<32; i++, lb<<=1) {} |
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256 return i==32 ? -1 : i; |
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257 } |
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258 |
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259 // Counts the number of bits set in 'v' |
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260 static uint n_bits(uint v) |
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261 { |
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262 int i = 0; |
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263 while (v) { |
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264 v = v & (v - 1); |
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265 i++; |
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266 } |
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267 return i; |
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268 } |
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269 |
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270 static uint *red_scale_table = 0; |
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271 static uint *green_scale_table = 0; |
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272 static uint *blue_scale_table = 0; |
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273 |
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274 static void cleanup_scale_tables() |
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275 { |
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276 delete[] red_scale_table; |
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277 delete[] green_scale_table; |
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278 delete[] blue_scale_table; |
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279 } |
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280 |
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281 /* |
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282 Could do smart bitshifting, but the "obvious" algorithm only works for |
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283 nBits >= 4. This is more robust. |
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284 */ |
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285 static void build_scale_table(uint **table, uint nBits) |
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286 { |
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287 if (nBits > 7) { |
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288 qWarning("build_scale_table: internal error, nBits = %i", nBits); |
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289 return; |
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290 } |
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291 if (!*table) { |
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292 static bool firstTable = true; |
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293 if (firstTable) { |
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294 qAddPostRoutine(cleanup_scale_tables); |
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295 firstTable = false; |
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296 } |
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297 *table = new uint[256]; |
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298 } |
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299 int maxVal = (1 << nBits) - 1; |
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300 int valShift = 8 - nBits; |
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301 int i; |
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302 for(i = 0 ; i < maxVal + 1 ; i++) |
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303 (*table)[i << valShift] = i*255/maxVal; |
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304 } |
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305 |
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306 static int defaultScreen = -1; |
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307 |
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308 /***************************************************************************** |
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309 QPixmap member functions |
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310 *****************************************************************************/ |
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311 |
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312 static int qt_pixmap_serial = 0; |
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313 int Q_GUI_EXPORT qt_x11_preferred_pixmap_depth = 0; |
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314 |
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315 QX11PixmapData::QX11PixmapData(PixelType type) |
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316 : QPixmapData(type, X11Class), hd(0), |
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317 flags(Uninitialized), x11_mask(0), picture(0), mask_picture(0), hd2(0), gl_surface(0), |
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318 share_mode(QPixmap::ImplicitlyShared), pengine(0) |
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319 { |
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320 } |
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321 |
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322 QPixmapData *QX11PixmapData::createCompatiblePixmapData() const |
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323 { |
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324 return new QX11PixmapData(pixelType()); |
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325 } |
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326 |
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327 void QX11PixmapData::resize(int width, int height) |
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328 { |
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329 setSerialNumber(++qt_pixmap_serial); |
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330 |
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331 w = width; |
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332 h = height; |
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333 is_null = (w <= 0 || h <= 0); |
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334 |
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335 if (defaultScreen >= 0 && defaultScreen != xinfo.screen()) { |
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336 QX11InfoData* xd = xinfo.getX11Data(true); |
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337 xd->screen = defaultScreen; |
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338 xd->depth = QX11Info::appDepth(xd->screen); |
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339 xd->cells = QX11Info::appCells(xd->screen); |
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340 xd->colormap = QX11Info::appColormap(xd->screen); |
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341 xd->defaultColormap = QX11Info::appDefaultColormap(xd->screen); |
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342 xd->visual = (Visual *)QX11Info::appVisual(xd->screen); |
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343 xd->defaultVisual = QX11Info::appDefaultVisual(xd->screen); |
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344 xinfo.setX11Data(xd); |
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345 } |
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346 |
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347 int dd = xinfo.depth(); |
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348 |
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349 if (qt_x11_preferred_pixmap_depth) |
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350 dd = qt_x11_preferred_pixmap_depth; |
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351 |
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352 bool make_null = w <= 0 || h <= 0; // create null pixmap |
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353 d = (pixelType() == BitmapType ? 1 : dd); |
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354 if (make_null || d == 0) { |
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355 w = 0; |
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356 h = 0; |
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357 is_null = true; |
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358 hd = 0; |
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359 picture = 0; |
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360 d = 0; |
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361 if (!make_null) |
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362 qWarning("QPixmap: Invalid pixmap parameters"); |
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363 return; |
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364 } |
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365 hd = (Qt::HANDLE)XCreatePixmap(X11->display, |
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366 RootWindow(X11->display, xinfo.screen()), |
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367 w, h, d); |
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368 #ifndef QT_NO_XRENDER |
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369 if (X11->use_xrender) { |
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370 XRenderPictFormat *format = d == 1 |
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371 ? XRenderFindStandardFormat(X11->display, PictStandardA1) |
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372 : XRenderFindVisualFormat(X11->display, (Visual *)xinfo.visual()); |
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373 picture = XRenderCreatePicture(X11->display, hd, format, 0, 0); |
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374 } |
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375 #endif // QT_NO_XRENDER |
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376 } |
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377 |
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378 struct QX11AlphaDetector |
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379 { |
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380 bool hasAlpha() const { |
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381 if (checked) |
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382 return has; |
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383 // Will implicitly also check format and return quickly for opaque types... |
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384 checked = true; |
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385 has = const_cast<QImage *>(image)->data_ptr()->checkForAlphaPixels(); |
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386 return has; |
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387 } |
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388 |
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389 bool hasXRenderAndAlpha() const { |
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390 if (!X11->use_xrender) |
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391 return false; |
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392 return hasAlpha(); |
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393 } |
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394 |
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395 QX11AlphaDetector(const QImage *i, Qt::ImageConversionFlags flags) |
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396 : image(i), checked(false), has(false) |
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397 { |
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398 if (flags & Qt::NoOpaqueDetection) { |
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399 checked = true; |
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400 has = image->hasAlphaChannel(); |
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401 } |
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402 } |
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403 |
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404 const QImage *image; |
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405 mutable bool checked; |
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406 mutable bool has; |
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407 }; |
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408 |
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409 void QX11PixmapData::fromImage(const QImage &img, |
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410 Qt::ImageConversionFlags flags) |
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411 { |
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412 setSerialNumber(++qt_pixmap_serial); |
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413 |
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414 w = img.width(); |
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415 h = img.height(); |
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416 d = img.depth(); |
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417 is_null = (w <= 0 || h <= 0); |
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418 |
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419 if (defaultScreen >= 0 && defaultScreen != xinfo.screen()) { |
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420 QX11InfoData* xd = xinfo.getX11Data(true); |
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421 xd->screen = defaultScreen; |
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422 xd->depth = QX11Info::appDepth(xd->screen); |
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423 xd->cells = QX11Info::appCells(xd->screen); |
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424 xd->colormap = QX11Info::appColormap(xd->screen); |
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425 xd->defaultColormap = QX11Info::appDefaultColormap(xd->screen); |
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426 xd->visual = (Visual *)QX11Info::appVisual(xd->screen); |
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427 xd->defaultVisual = QX11Info::appDefaultVisual(xd->screen); |
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428 xinfo.setX11Data(xd); |
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429 } |
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430 |
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431 if (pixelType() == BitmapType) { |
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432 bitmapFromImage(img); |
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433 return; |
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434 } |
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435 |
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436 if (uint(w) >= 32768 || uint(h) >= 32768) { |
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437 w = h = 0; |
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438 is_null = true; |
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439 return; |
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440 } |
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441 |
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442 QX11AlphaDetector alphaCheck(&img, flags); |
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443 int dd = alphaCheck.hasXRenderAndAlpha() ? 32 : xinfo.depth(); |
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444 |
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445 if (qt_x11_preferred_pixmap_depth) |
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446 dd = qt_x11_preferred_pixmap_depth; |
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447 |
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448 QImage image = img; |
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449 |
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450 // must be monochrome |
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451 if (dd == 1 || (flags & Qt::ColorMode_Mask) == Qt::MonoOnly) { |
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452 if (d != 1) { |
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453 // dither |
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454 image = image.convertToFormat(QImage::Format_MonoLSB, flags); |
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455 d = 1; |
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456 } |
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457 } else { // can be both |
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458 bool conv8 = false; |
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459 if (d > 8 && dd <= 8) { // convert to 8 bit |
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460 if ((flags & Qt::DitherMode_Mask) == Qt::AutoDither) |
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461 flags = (flags & ~Qt::DitherMode_Mask) |
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462 | Qt::PreferDither; |
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463 conv8 = true; |
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464 } else if ((flags & Qt::ColorMode_Mask) == Qt::ColorOnly) { |
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465 conv8 = (d == 1); // native depth wanted |
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466 } else if (d == 1) { |
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467 if (image.numColors() == 2) { |
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468 QRgb c0 = image.color(0); // Auto: convert to best |
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469 QRgb c1 = image.color(1); |
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470 conv8 = qMin(c0,c1) != qRgb(0,0,0) || qMax(c0,c1) != qRgb(255,255,255); |
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471 } else { |
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472 // eg. 1-color monochrome images (they do exist). |
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473 conv8 = true; |
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474 } |
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475 } |
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476 if (conv8) { |
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477 image = image.convertToFormat(QImage::Format_Indexed8, flags); |
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478 d = 8; |
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479 } |
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480 } |
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481 |
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482 if (d == 1 || d == 16 || d == 24) { |
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483 image = image.convertToFormat(QImage::Format_RGB32, flags); |
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484 fromImage(image, Qt::AutoColor); |
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485 return; |
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486 } |
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487 |
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488 Display *dpy = X11->display; |
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489 Visual *visual = (Visual *)xinfo.visual(); |
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490 XImage *xi = 0; |
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491 bool trucol = (visual->c_class >= TrueColor); |
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492 int nbytes = image.numBytes(); |
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493 uchar *newbits= 0; |
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494 |
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495 #ifndef QT_NO_XRENDER |
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496 if (alphaCheck.hasXRenderAndAlpha()) { |
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497 const QImage &cimage = image; |
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498 |
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499 d = 32; |
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500 |
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501 if (QX11Info::appDepth() != d) { |
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502 if (xinfo.x11data) { |
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503 xinfo.x11data->depth = d; |
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504 } else { |
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505 QX11InfoData *xd = xinfo.getX11Data(true); |
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506 xd->screen = QX11Info::appScreen(); |
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507 xd->depth = d; |
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508 xd->cells = QX11Info::appCells(); |
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509 xd->colormap = QX11Info::appColormap(); |
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510 xd->defaultColormap = QX11Info::appDefaultColormap(); |
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511 xd->visual = (Visual *)QX11Info::appVisual(); |
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512 xd->defaultVisual = QX11Info::appDefaultVisual(); |
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513 xinfo.setX11Data(xd); |
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514 } |
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515 } |
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516 |
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517 hd = (Qt::HANDLE)XCreatePixmap(dpy, RootWindow(dpy, xinfo.screen()), |
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518 w, h, d); |
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519 picture = XRenderCreatePicture(X11->display, hd, |
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520 XRenderFindStandardFormat(X11->display, PictStandardARGB32), 0, 0); |
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521 |
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522 xi = XCreateImage(dpy, visual, d, ZPixmap, 0, 0, w, h, 32, 0); |
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523 Q_CHECK_PTR(xi); |
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524 newbits = (uchar *)malloc(xi->bytes_per_line*h); |
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525 Q_CHECK_PTR(newbits); |
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526 xi->data = (char *)newbits; |
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527 |
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528 switch(cimage.format()) { |
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529 case QImage::Format_Indexed8: { |
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530 QVector<QRgb> colorTable = cimage.colorTable(); |
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531 uint *xidata = (uint *)xi->data; |
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532 for (int y = 0; y < h; ++y) { |
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533 const uchar *p = cimage.scanLine(y); |
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534 for (int x = 0; x < w; ++x) { |
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535 const QRgb rgb = colorTable[p[x]]; |
|
536 const int a = qAlpha(rgb); |
|
537 if (a == 0xff) |
|
538 *xidata = rgb; |
|
539 else |
|
540 // RENDER expects premultiplied alpha |
|
541 *xidata = qRgba(qt_div_255(qRed(rgb) * a), |
|
542 qt_div_255(qGreen(rgb) * a), |
|
543 qt_div_255(qBlue(rgb) * a), |
|
544 a); |
|
545 ++xidata; |
|
546 } |
|
547 } |
|
548 } |
|
549 break; |
|
550 case QImage::Format_RGB32: { |
|
551 uint *xidata = (uint *)xi->data; |
|
552 for (int y = 0; y < h; ++y) { |
|
553 const QRgb *p = (const QRgb *) cimage.scanLine(y); |
|
554 for (int x = 0; x < w; ++x) |
|
555 *xidata++ = p[x] | 0xff000000; |
|
556 } |
|
557 } |
|
558 break; |
|
559 case QImage::Format_ARGB32: { |
|
560 uint *xidata = (uint *)xi->data; |
|
561 for (int y = 0; y < h; ++y) { |
|
562 const QRgb *p = (const QRgb *) cimage.scanLine(y); |
|
563 for (int x = 0; x < w; ++x) { |
|
564 const QRgb rgb = p[x]; |
|
565 const int a = qAlpha(rgb); |
|
566 if (a == 0xff) |
|
567 *xidata = rgb; |
|
568 else |
|
569 // RENDER expects premultiplied alpha |
|
570 *xidata = qRgba(qt_div_255(qRed(rgb) * a), |
|
571 qt_div_255(qGreen(rgb) * a), |
|
572 qt_div_255(qBlue(rgb) * a), |
|
573 a); |
|
574 ++xidata; |
|
575 } |
|
576 } |
|
577 |
|
578 } |
|
579 break; |
|
580 case QImage::Format_ARGB32_Premultiplied: { |
|
581 uint *xidata = (uint *)xi->data; |
|
582 for (int y = 0; y < h; ++y) { |
|
583 const QRgb *p = (const QRgb *) cimage.scanLine(y); |
|
584 memcpy(xidata, p, w*sizeof(QRgb)); |
|
585 xidata += w; |
|
586 } |
|
587 } |
|
588 break; |
|
589 default: |
|
590 Q_ASSERT(false); |
|
591 } |
|
592 |
|
593 if ((xi->byte_order == MSBFirst) != (QSysInfo::ByteOrder == QSysInfo::BigEndian)) { |
|
594 uint *xidata = (uint *)xi->data; |
|
595 uint *xiend = xidata + w*h; |
|
596 while (xidata < xiend) { |
|
597 *xidata = (*xidata >> 24) |
|
598 | ((*xidata >> 8) & 0xff00) |
|
599 | ((*xidata << 8) & 0xff0000) |
|
600 | (*xidata << 24); |
|
601 ++xidata; |
|
602 } |
|
603 } |
|
604 |
|
605 GC gc = XCreateGC(dpy, hd, 0, 0); |
|
606 XPutImage(dpy, hd, gc, xi, 0, 0, 0, 0, w, h); |
|
607 XFreeGC(dpy, gc); |
|
608 |
|
609 qSafeXDestroyImage(xi); |
|
610 |
|
611 return; |
|
612 } |
|
613 #endif // QT_NO_XRENDER |
|
614 |
|
615 if (trucol) { // truecolor display |
|
616 if (image.format() == QImage::Format_ARGB32_Premultiplied) |
|
617 image = image.convertToFormat(QImage::Format_ARGB32); |
|
618 |
|
619 const QImage &cimage = image; |
|
620 QRgb pix[256]; // pixel translation table |
|
621 const bool d8 = (d == 8); |
|
622 const uint red_mask = (uint)visual->red_mask; |
|
623 const uint green_mask = (uint)visual->green_mask; |
|
624 const uint blue_mask = (uint)visual->blue_mask; |
|
625 const int red_shift = highest_bit(red_mask) - 7; |
|
626 const int green_shift = highest_bit(green_mask) - 7; |
|
627 const int blue_shift = highest_bit(blue_mask) - 7; |
|
628 const uint rbits = highest_bit(red_mask) - lowest_bit(red_mask) + 1; |
|
629 const uint gbits = highest_bit(green_mask) - lowest_bit(green_mask) + 1; |
|
630 const uint bbits = highest_bit(blue_mask) - lowest_bit(blue_mask) + 1; |
|
631 |
|
632 if (d8) { // setup pixel translation |
|
633 QVector<QRgb> ctable = cimage.colorTable(); |
|
634 for (int i=0; i < cimage.numColors(); i++) { |
|
635 int r = qRed (ctable[i]); |
|
636 int g = qGreen(ctable[i]); |
|
637 int b = qBlue (ctable[i]); |
|
638 r = red_shift > 0 ? r << red_shift : r >> -red_shift; |
|
639 g = green_shift > 0 ? g << green_shift : g >> -green_shift; |
|
640 b = blue_shift > 0 ? b << blue_shift : b >> -blue_shift; |
|
641 pix[i] = (b & blue_mask) | (g & green_mask) | (r & red_mask) |
|
642 | ~(blue_mask | green_mask | red_mask); |
|
643 } |
|
644 } |
|
645 |
|
646 xi = XCreateImage(dpy, visual, dd, ZPixmap, 0, 0, w, h, 32, 0); |
|
647 Q_CHECK_PTR(xi); |
|
648 newbits = (uchar *)malloc(xi->bytes_per_line*h); |
|
649 Q_CHECK_PTR(newbits); |
|
650 if (!newbits) // no memory |
|
651 return; |
|
652 int bppc = xi->bits_per_pixel; |
|
653 |
|
654 bool contig_bits = n_bits(red_mask) == rbits && |
|
655 n_bits(green_mask) == gbits && |
|
656 n_bits(blue_mask) == bbits; |
|
657 bool dither_tc = |
|
658 // Want it? |
|
659 (flags & Qt::Dither_Mask) != Qt::ThresholdDither && |
|
660 (flags & Qt::DitherMode_Mask) != Qt::AvoidDither && |
|
661 // Need it? |
|
662 bppc < 24 && !d8 && |
|
663 // Can do it? (Contiguous bits?) |
|
664 contig_bits; |
|
665 |
|
666 static bool init=false; |
|
667 static int D[16][16]; |
|
668 if (dither_tc && !init) { |
|
669 // I also contributed this code to XV - WWA. |
|
670 /* |
|
671 The dither matrix, D, is obtained with this formula: |
|
672 |
|
673 D2 = [0 2] |
|
674 [3 1] |
|
675 |
|
676 |
|
677 D2*n = [4*Dn 4*Dn+2*Un] |
|
678 [4*Dn+3*Un 4*Dn+1*Un] |
|
679 */ |
|
680 int n,i,j; |
|
681 init=1; |
|
682 |
|
683 /* Set D2 */ |
|
684 D[0][0]=0; |
|
685 D[1][0]=2; |
|
686 D[0][1]=3; |
|
687 D[1][1]=1; |
|
688 |
|
689 /* Expand using recursive definition given above */ |
|
690 for (n=2; n<16; n*=2) { |
|
691 for (i=0; i<n; i++) { |
|
692 for (j=0; j<n; j++) { |
|
693 D[i][j]*=4; |
|
694 D[i+n][j]=D[i][j]+2; |
|
695 D[i][j+n]=D[i][j]+3; |
|
696 D[i+n][j+n]=D[i][j]+1; |
|
697 } |
|
698 } |
|
699 } |
|
700 init=true; |
|
701 } |
|
702 |
|
703 enum { BPP8, |
|
704 BPP16_565, BPP16_555, |
|
705 BPP16_MSB, BPP16_LSB, |
|
706 BPP24_888, |
|
707 BPP24_MSB, BPP24_LSB, |
|
708 BPP32_8888, |
|
709 BPP32_MSB, BPP32_LSB |
|
710 } mode = BPP8; |
|
711 |
|
712 bool same_msb_lsb = (xi->byte_order == MSBFirst) == (QSysInfo::ByteOrder == QSysInfo::BigEndian); |
|
713 |
|
714 if(bppc == 8) // 8 bit |
|
715 mode = BPP8; |
|
716 else if(bppc == 16) { // 16 bit MSB/LSB |
|
717 if(red_shift == 8 && green_shift == 3 && blue_shift == -3 && !d8 && same_msb_lsb) |
|
718 mode = BPP16_565; |
|
719 else if(red_shift == 7 && green_shift == 2 && blue_shift == -3 && !d8 && same_msb_lsb) |
|
720 mode = BPP16_555; |
|
721 else |
|
722 mode = (xi->byte_order == LSBFirst) ? BPP16_LSB : BPP16_MSB; |
|
723 } else if(bppc == 24) { // 24 bit MSB/LSB |
|
724 if (red_shift == 16 && green_shift == 8 && blue_shift == 0 && !d8 && same_msb_lsb) |
|
725 mode = BPP24_888; |
|
726 else |
|
727 mode = (xi->byte_order == LSBFirst) ? BPP24_LSB : BPP24_MSB; |
|
728 } else if(bppc == 32) { // 32 bit MSB/LSB |
|
729 if(red_shift == 16 && green_shift == 8 && blue_shift == 0 && !d8 && same_msb_lsb) |
|
730 mode = BPP32_8888; |
|
731 else |
|
732 mode = (xi->byte_order == LSBFirst) ? BPP32_LSB : BPP32_MSB; |
|
733 } else |
|
734 qFatal("Logic error 3"); |
|
735 |
|
736 #define GET_PIXEL \ |
|
737 uint pixel; \ |
|
738 if (d8) pixel = pix[*src++]; \ |
|
739 else { \ |
|
740 int r = qRed (*p); \ |
|
741 int g = qGreen(*p); \ |
|
742 int b = qBlue (*p++); \ |
|
743 r = red_shift > 0 \ |
|
744 ? r << red_shift : r >> -red_shift; \ |
|
745 g = green_shift > 0 \ |
|
746 ? g << green_shift : g >> -green_shift; \ |
|
747 b = blue_shift > 0 \ |
|
748 ? b << blue_shift : b >> -blue_shift; \ |
|
749 pixel = (r & red_mask)|(g & green_mask) | (b & blue_mask) \ |
|
750 | ~(blue_mask | green_mask | red_mask); \ |
|
751 } |
|
752 |
|
753 #define GET_PIXEL_DITHER_TC \ |
|
754 int r = qRed (*p); \ |
|
755 int g = qGreen(*p); \ |
|
756 int b = qBlue (*p++); \ |
|
757 const int thres = D[x%16][y%16]; \ |
|
758 if (r <= (255-(1<<(8-rbits))) && ((r<<rbits) & 255) \ |
|
759 > thres) \ |
|
760 r += (1<<(8-rbits)); \ |
|
761 if (g <= (255-(1<<(8-gbits))) && ((g<<gbits) & 255) \ |
|
762 > thres) \ |
|
763 g += (1<<(8-gbits)); \ |
|
764 if (b <= (255-(1<<(8-bbits))) && ((b<<bbits) & 255) \ |
|
765 > thres) \ |
|
766 b += (1<<(8-bbits)); \ |
|
767 r = red_shift > 0 \ |
|
768 ? r << red_shift : r >> -red_shift; \ |
|
769 g = green_shift > 0 \ |
|
770 ? g << green_shift : g >> -green_shift; \ |
|
771 b = blue_shift > 0 \ |
|
772 ? b << blue_shift : b >> -blue_shift; \ |
|
773 uint pixel = (r & red_mask)|(g & green_mask) | (b & blue_mask); |
|
774 |
|
775 // again, optimized case |
|
776 // can't be optimized that much :( |
|
777 #define GET_PIXEL_DITHER_TC_OPT(red_shift,green_shift,blue_shift,red_mask,green_mask,blue_mask, \ |
|
778 rbits,gbits,bbits) \ |
|
779 const int thres = D[x%16][y%16]; \ |
|
780 int r = qRed (*p); \ |
|
781 if (r <= (255-(1<<(8-rbits))) && ((r<<rbits) & 255) \ |
|
782 > thres) \ |
|
783 r += (1<<(8-rbits)); \ |
|
784 int g = qGreen(*p); \ |
|
785 if (g <= (255-(1<<(8-gbits))) && ((g<<gbits) & 255) \ |
|
786 > thres) \ |
|
787 g += (1<<(8-gbits)); \ |
|
788 int b = qBlue (*p++); \ |
|
789 if (b <= (255-(1<<(8-bbits))) && ((b<<bbits) & 255) \ |
|
790 > thres) \ |
|
791 b += (1<<(8-bbits)); \ |
|
792 uint pixel = ((r red_shift) & red_mask) \ |
|
793 | ((g green_shift) & green_mask) \ |
|
794 | ((b blue_shift) & blue_mask); |
|
795 |
|
796 #define CYCLE(body) \ |
|
797 for (int y=0; y<h; y++) { \ |
|
798 const uchar* src = cimage.scanLine(y); \ |
|
799 uchar* dst = newbits + xi->bytes_per_line*y; \ |
|
800 const QRgb* p = (const QRgb *)src; \ |
|
801 body \ |
|
802 } |
|
803 |
|
804 if (dither_tc) { |
|
805 switch (mode) { |
|
806 case BPP16_565: |
|
807 CYCLE( |
|
808 quint16* dst16 = (quint16*)dst; |
|
809 for (int x=0; x<w; x++) { |
|
810 GET_PIXEL_DITHER_TC_OPT(<<8,<<3,>>3,0xf800,0x7e0,0x1f,5,6,5) |
|
811 *dst16++ = pixel; |
|
812 } |
|
813 ) |
|
814 break; |
|
815 case BPP16_555: |
|
816 CYCLE( |
|
817 quint16* dst16 = (quint16*)dst; |
|
818 for (int x=0; x<w; x++) { |
|
819 GET_PIXEL_DITHER_TC_OPT(<<7,<<2,>>3,0x7c00,0x3e0,0x1f,5,5,5) |
|
820 *dst16++ = pixel; |
|
821 } |
|
822 ) |
|
823 break; |
|
824 case BPP16_MSB: // 16 bit MSB |
|
825 CYCLE( |
|
826 for (int x=0; x<w; x++) { |
|
827 GET_PIXEL_DITHER_TC |
|
828 *dst++ = (pixel >> 8); |
|
829 *dst++ = pixel; |
|
830 } |
|
831 ) |
|
832 break; |
|
833 case BPP16_LSB: // 16 bit LSB |
|
834 CYCLE( |
|
835 for (int x=0; x<w; x++) { |
|
836 GET_PIXEL_DITHER_TC |
|
837 *dst++ = pixel; |
|
838 *dst++ = pixel >> 8; |
|
839 } |
|
840 ) |
|
841 break; |
|
842 default: |
|
843 qFatal("Logic error"); |
|
844 } |
|
845 } else { |
|
846 switch (mode) { |
|
847 case BPP8: // 8 bit |
|
848 CYCLE( |
|
849 Q_UNUSED(p); |
|
850 for (int x=0; x<w; x++) |
|
851 *dst++ = pix[*src++]; |
|
852 ) |
|
853 break; |
|
854 case BPP16_565: |
|
855 CYCLE( |
|
856 quint16* dst16 = (quint16*)dst; |
|
857 for (int x = 0; x < w; x++) { |
|
858 *dst16++ = ((*p >> 8) & 0xf800) |
|
859 | ((*p >> 5) & 0x7e0) |
|
860 | ((*p >> 3) & 0x1f); |
|
861 ++p; |
|
862 } |
|
863 ) |
|
864 break; |
|
865 case BPP16_555: |
|
866 CYCLE( |
|
867 quint16* dst16 = (quint16*)dst; |
|
868 for (int x=0; x<w; x++) { |
|
869 *dst16++ = ((*p >> 9) & 0x7c00) |
|
870 | ((*p >> 6) & 0x3e0) |
|
871 | ((*p >> 3) & 0x1f); |
|
872 ++p; |
|
873 } |
|
874 ) |
|
875 break; |
|
876 case BPP16_MSB: // 16 bit MSB |
|
877 CYCLE( |
|
878 for (int x=0; x<w; x++) { |
|
879 GET_PIXEL |
|
880 *dst++ = (pixel >> 8); |
|
881 *dst++ = pixel; |
|
882 } |
|
883 ) |
|
884 break; |
|
885 case BPP16_LSB: // 16 bit LSB |
|
886 CYCLE( |
|
887 for (int x=0; x<w; x++) { |
|
888 GET_PIXEL |
|
889 *dst++ = pixel; |
|
890 *dst++ = pixel >> 8; |
|
891 } |
|
892 ) |
|
893 break; |
|
894 case BPP24_888: // 24 bit MSB |
|
895 CYCLE( |
|
896 for (int x=0; x<w; x++) { |
|
897 *dst++ = qRed (*p); |
|
898 *dst++ = qGreen(*p); |
|
899 *dst++ = qBlue (*p++); |
|
900 } |
|
901 ) |
|
902 break; |
|
903 case BPP24_MSB: // 24 bit MSB |
|
904 CYCLE( |
|
905 for (int x=0; x<w; x++) { |
|
906 GET_PIXEL |
|
907 *dst++ = pixel >> 16; |
|
908 *dst++ = pixel >> 8; |
|
909 *dst++ = pixel; |
|
910 } |
|
911 ) |
|
912 break; |
|
913 case BPP24_LSB: // 24 bit LSB |
|
914 CYCLE( |
|
915 for (int x=0; x<w; x++) { |
|
916 GET_PIXEL |
|
917 *dst++ = pixel; |
|
918 *dst++ = pixel >> 8; |
|
919 *dst++ = pixel >> 16; |
|
920 } |
|
921 ) |
|
922 break; |
|
923 case BPP32_8888: |
|
924 CYCLE( |
|
925 memcpy(dst, p, w * 4); |
|
926 ) |
|
927 break; |
|
928 case BPP32_MSB: // 32 bit MSB |
|
929 CYCLE( |
|
930 for (int x=0; x<w; x++) { |
|
931 GET_PIXEL |
|
932 *dst++ = pixel >> 24; |
|
933 *dst++ = pixel >> 16; |
|
934 *dst++ = pixel >> 8; |
|
935 *dst++ = pixel; |
|
936 } |
|
937 ) |
|
938 break; |
|
939 case BPP32_LSB: // 32 bit LSB |
|
940 CYCLE( |
|
941 for (int x=0; x<w; x++) { |
|
942 GET_PIXEL |
|
943 *dst++ = pixel; |
|
944 *dst++ = pixel >> 8; |
|
945 *dst++ = pixel >> 16; |
|
946 *dst++ = pixel >> 24; |
|
947 } |
|
948 ) |
|
949 break; |
|
950 default: |
|
951 qFatal("Logic error 2"); |
|
952 } |
|
953 } |
|
954 xi->data = (char *)newbits; |
|
955 } |
|
956 |
|
957 if (d == 8 && !trucol) { // 8 bit pixmap |
|
958 int pop[256]; // pixel popularity |
|
959 |
|
960 if (image.numColors() == 0) |
|
961 image.setNumColors(1); |
|
962 |
|
963 const QImage &cimage = image; |
|
964 memset(pop, 0, sizeof(int)*256); // reset popularity array |
|
965 for (int i = 0; i < h; i++) { // for each scanline... |
|
966 const uchar* p = cimage.scanLine(i); |
|
967 const uchar *end = p + w; |
|
968 while (p < end) // compute popularity |
|
969 pop[*p++]++; |
|
970 } |
|
971 |
|
972 newbits = (uchar *)malloc(nbytes); // copy image into newbits |
|
973 Q_CHECK_PTR(newbits); |
|
974 if (!newbits) // no memory |
|
975 return; |
|
976 uchar* p = newbits; |
|
977 memcpy(p, cimage.bits(), nbytes); // copy image data into newbits |
|
978 |
|
979 /* |
|
980 * The code below picks the most important colors. It is based on the |
|
981 * diversity algorithm, implemented in XV 3.10. XV is (C) by John Bradley. |
|
982 */ |
|
983 |
|
984 struct PIX { // pixel sort element |
|
985 uchar r,g,b,n; // color + pad |
|
986 int use; // popularity |
|
987 int index; // index in colormap |
|
988 int mindist; |
|
989 }; |
|
990 int ncols = 0; |
|
991 for (int i=0; i< cimage.numColors(); i++) { // compute number of colors |
|
992 if (pop[i] > 0) |
|
993 ncols++; |
|
994 } |
|
995 for (int i = cimage.numColors(); i < 256; i++) // ignore out-of-range pixels |
|
996 pop[i] = 0; |
|
997 |
|
998 // works since we make sure above to have at least |
|
999 // one color in the image |
|
1000 if (ncols == 0) |
|
1001 ncols = 1; |
|
1002 |
|
1003 PIX pixarr[256]; // pixel array |
|
1004 PIX pixarr_sorted[256]; // pixel array (sorted) |
|
1005 memset(pixarr, 0, ncols*sizeof(PIX)); |
|
1006 PIX *px = &pixarr[0]; |
|
1007 int maxpop = 0; |
|
1008 int maxpix = 0; |
|
1009 uint j = 0; |
|
1010 QVector<QRgb> ctable = cimage.colorTable(); |
|
1011 for (int i = 0; i < 256; i++) { // init pixel array |
|
1012 if (pop[i] > 0) { |
|
1013 px->r = qRed (ctable[i]); |
|
1014 px->g = qGreen(ctable[i]); |
|
1015 px->b = qBlue (ctable[i]); |
|
1016 px->n = 0; |
|
1017 px->use = pop[i]; |
|
1018 if (pop[i] > maxpop) { // select most popular entry |
|
1019 maxpop = pop[i]; |
|
1020 maxpix = j; |
|
1021 } |
|
1022 px->index = i; |
|
1023 px->mindist = 1000000; |
|
1024 px++; |
|
1025 j++; |
|
1026 } |
|
1027 } |
|
1028 pixarr_sorted[0] = pixarr[maxpix]; |
|
1029 pixarr[maxpix].use = 0; |
|
1030 |
|
1031 for (int i = 1; i < ncols; i++) { // sort pixels |
|
1032 int minpix = -1, mindist = -1; |
|
1033 px = &pixarr_sorted[i-1]; |
|
1034 int r = px->r; |
|
1035 int g = px->g; |
|
1036 int b = px->b; |
|
1037 int dist; |
|
1038 if ((i & 1) || i<10) { // sort on max distance |
|
1039 for (int j=0; j<ncols; j++) { |
|
1040 px = &pixarr[j]; |
|
1041 if (px->use) { |
|
1042 dist = (px->r - r)*(px->r - r) + |
|
1043 (px->g - g)*(px->g - g) + |
|
1044 (px->b - b)*(px->b - b); |
|
1045 if (px->mindist > dist) |
|
1046 px->mindist = dist; |
|
1047 if (px->mindist > mindist) { |
|
1048 mindist = px->mindist; |
|
1049 minpix = j; |
|
1050 } |
|
1051 } |
|
1052 } |
|
1053 } else { // sort on max popularity |
|
1054 for (int j=0; j<ncols; j++) { |
|
1055 px = &pixarr[j]; |
|
1056 if (px->use) { |
|
1057 dist = (px->r - r)*(px->r - r) + |
|
1058 (px->g - g)*(px->g - g) + |
|
1059 (px->b - b)*(px->b - b); |
|
1060 if (px->mindist > dist) |
|
1061 px->mindist = dist; |
|
1062 if (px->use > mindist) { |
|
1063 mindist = px->use; |
|
1064 minpix = j; |
|
1065 } |
|
1066 } |
|
1067 } |
|
1068 } |
|
1069 pixarr_sorted[i] = pixarr[minpix]; |
|
1070 pixarr[minpix].use = 0; |
|
1071 } |
|
1072 |
|
1073 QColormap cmap = QColormap::instance(xinfo.screen()); |
|
1074 uint pix[256]; // pixel translation table |
|
1075 px = &pixarr_sorted[0]; |
|
1076 for (int i = 0; i < ncols; i++) { // allocate colors |
|
1077 QColor c(px->r, px->g, px->b); |
|
1078 pix[px->index] = cmap.pixel(c); |
|
1079 px++; |
|
1080 } |
|
1081 |
|
1082 p = newbits; |
|
1083 for (int i = 0; i < nbytes; i++) { // translate pixels |
|
1084 *p = pix[*p]; |
|
1085 p++; |
|
1086 } |
|
1087 } |
|
1088 |
|
1089 if (!xi) { // X image not created |
|
1090 xi = XCreateImage(dpy, visual, dd, ZPixmap, 0, 0, w, h, 32, 0); |
|
1091 if (xi->bits_per_pixel == 16) { // convert 8 bpp ==> 16 bpp |
|
1092 ushort *p2; |
|
1093 int p2inc = xi->bytes_per_line/sizeof(ushort); |
|
1094 ushort *newerbits = (ushort *)malloc(xi->bytes_per_line * h); |
|
1095 Q_CHECK_PTR(newerbits); |
|
1096 if (!newerbits) // no memory |
|
1097 return; |
|
1098 uchar* p = newbits; |
|
1099 for (int y = 0; y < h; y++) { // OOPS: Do right byte order!! |
|
1100 p2 = newerbits + p2inc*y; |
|
1101 for (int x = 0; x < w; x++) |
|
1102 *p2++ = *p++; |
|
1103 } |
|
1104 free(newbits); |
|
1105 newbits = (uchar *)newerbits; |
|
1106 } else if (xi->bits_per_pixel != 8) { |
|
1107 qWarning("QPixmap::fromImage: Display not supported " |
|
1108 "(bpp=%d)", xi->bits_per_pixel); |
|
1109 } |
|
1110 xi->data = (char *)newbits; |
|
1111 } |
|
1112 |
|
1113 hd = (Qt::HANDLE)XCreatePixmap(X11->display, |
|
1114 RootWindow(X11->display, xinfo.screen()), |
|
1115 w, h, dd); |
|
1116 |
|
1117 GC gc = XCreateGC(dpy, hd, 0, 0); |
|
1118 XPutImage(dpy, hd, gc, xi, 0, 0, 0, 0, w, h); |
|
1119 XFreeGC(dpy, gc); |
|
1120 |
|
1121 qSafeXDestroyImage(xi); |
|
1122 d = dd; |
|
1123 |
|
1124 #ifndef QT_NO_XRENDER |
|
1125 if (X11->use_xrender) { |
|
1126 XRenderPictFormat *format = d == 1 |
|
1127 ? XRenderFindStandardFormat(X11->display, PictStandardA1) |
|
1128 : XRenderFindVisualFormat(X11->display, (Visual *)xinfo.visual()); |
|
1129 picture = XRenderCreatePicture(X11->display, hd, format, 0, 0); |
|
1130 } |
|
1131 #endif |
|
1132 |
|
1133 if (alphaCheck.hasAlpha()) { |
|
1134 QBitmap m = QBitmap::fromImage(image.createAlphaMask(flags)); |
|
1135 setMask(m); |
|
1136 } |
|
1137 } |
|
1138 |
|
1139 void QX11PixmapData::bitmapFromImage(const QImage &image) |
|
1140 { |
|
1141 QImage img = image.convertToFormat(QImage::Format_MonoLSB); |
|
1142 const QRgb c0 = QColor(Qt::black).rgb(); |
|
1143 const QRgb c1 = QColor(Qt::white).rgb(); |
|
1144 if (img.color(0) == c0 && img.color(1) == c1) { |
|
1145 img.invertPixels(); |
|
1146 img.setColor(0, c1); |
|
1147 img.setColor(1, c0); |
|
1148 } |
|
1149 |
|
1150 char *bits; |
|
1151 uchar *tmp_bits; |
|
1152 w = img.width(); |
|
1153 h = img.height(); |
|
1154 d = 1; |
|
1155 is_null = (w <= 0 || h <= 0); |
|
1156 int bpl = (w + 7) / 8; |
|
1157 int ibpl = img.bytesPerLine(); |
|
1158 if (bpl != ibpl) { |
|
1159 tmp_bits = new uchar[bpl*h]; |
|
1160 bits = (char *)tmp_bits; |
|
1161 uchar *p, *b; |
|
1162 int y; |
|
1163 b = tmp_bits; |
|
1164 p = img.scanLine(0); |
|
1165 for (y = 0; y < h; y++) { |
|
1166 memcpy(b, p, bpl); |
|
1167 b += bpl; |
|
1168 p += ibpl; |
|
1169 } |
|
1170 } else { |
|
1171 bits = (char *)img.bits(); |
|
1172 tmp_bits = 0; |
|
1173 } |
|
1174 hd = (Qt::HANDLE)XCreateBitmapFromData(xinfo.display(), |
|
1175 RootWindow(xinfo.display(), xinfo.screen()), |
|
1176 bits, w, h); |
|
1177 |
|
1178 #ifndef QT_NO_XRENDER |
|
1179 if (X11->use_xrender) |
|
1180 picture = XRenderCreatePicture(X11->display, hd, |
|
1181 XRenderFindStandardFormat(X11->display, PictStandardA1), 0, 0); |
|
1182 #endif // QT_NO_XRENDER |
|
1183 |
|
1184 if (tmp_bits) // Avoid purify complaint |
|
1185 delete [] tmp_bits; |
|
1186 } |
|
1187 |
|
1188 void QX11PixmapData::fill(const QColor &fillColor) |
|
1189 { |
|
1190 if (fillColor.alpha() != 255) { |
|
1191 #ifndef QT_NO_XRENDER |
|
1192 if (X11->use_xrender) { |
|
1193 if (!picture || d != 32) |
|
1194 convertToARGB32(/*preserveContents = */false); |
|
1195 |
|
1196 ::Picture src = X11->getSolidFill(xinfo.screen(), fillColor); |
|
1197 XRenderComposite(X11->display, PictOpSrc, src, 0, picture, |
|
1198 0, 0, width(), height(), |
|
1199 0, 0, width(), height()); |
|
1200 } else |
|
1201 #endif |
|
1202 { |
|
1203 QImage im(width(), height(), QImage::Format_ARGB32_Premultiplied); |
|
1204 im.fill(PREMUL(fillColor.rgba())); |
|
1205 release(); |
|
1206 fromImage(im, Qt::AutoColor | Qt::OrderedAlphaDither); |
|
1207 } |
|
1208 return; |
|
1209 } |
|
1210 |
|
1211 GC gc = XCreateGC(X11->display, hd, 0, 0); |
|
1212 if (depth() == 1) { |
|
1213 XSetForeground(X11->display, gc, qGray(fillColor.rgb()) > 127 ? 0 : 1); |
|
1214 } else if (X11->use_xrender && d >= 24) { |
|
1215 XSetForeground(X11->display, gc, fillColor.rgba()); |
|
1216 } else { |
|
1217 XSetForeground(X11->display, gc, |
|
1218 QColormap::instance(xinfo.screen()).pixel(fillColor)); |
|
1219 } |
|
1220 XFillRectangle(X11->display, hd, gc, 0, 0, width(), height()); |
|
1221 XFreeGC(X11->display, gc); |
|
1222 } |
|
1223 |
|
1224 QX11PixmapData::~QX11PixmapData() |
|
1225 { |
|
1226 release(); |
|
1227 } |
|
1228 |
|
1229 void QX11PixmapData::release() |
|
1230 { |
|
1231 delete pengine; |
|
1232 pengine = 0; |
|
1233 |
|
1234 if (!X11) |
|
1235 return; |
|
1236 |
|
1237 if (x11_mask) { |
|
1238 #ifndef QT_NO_XRENDER |
|
1239 if (mask_picture) |
|
1240 XRenderFreePicture(X11->display, mask_picture); |
|
1241 mask_picture = 0; |
|
1242 #endif |
|
1243 XFreePixmap(X11->display, x11_mask); |
|
1244 x11_mask = 0; |
|
1245 } |
|
1246 |
|
1247 if (hd) { |
|
1248 #ifndef QT_NO_XRENDER |
|
1249 if (picture) { |
|
1250 XRenderFreePicture(X11->display, picture); |
|
1251 picture = 0; |
|
1252 } |
|
1253 #endif // QT_NO_XRENDER |
|
1254 |
|
1255 if (hd2) { |
|
1256 XFreePixmap(xinfo.display(), hd2); |
|
1257 hd2 = 0; |
|
1258 } |
|
1259 if (!(flags & Readonly)) |
|
1260 XFreePixmap(xinfo.display(), hd); |
|
1261 hd = 0; |
|
1262 } |
|
1263 } |
|
1264 |
|
1265 QPixmap QX11PixmapData::alphaChannel() const |
|
1266 { |
|
1267 if (!hasAlphaChannel()) { |
|
1268 QPixmap pm(w, h); |
|
1269 pm.fill(Qt::white); |
|
1270 return pm; |
|
1271 } |
|
1272 QImage im(toImage()); |
|
1273 return QPixmap::fromImage(im.alphaChannel(), Qt::OrderedDither); |
|
1274 } |
|
1275 |
|
1276 void QX11PixmapData::setAlphaChannel(const QPixmap &alpha) |
|
1277 { |
|
1278 QImage image(toImage()); |
|
1279 image.setAlphaChannel(alpha.toImage()); |
|
1280 release(); |
|
1281 fromImage(image, Qt::OrderedDither | Qt::OrderedAlphaDither); |
|
1282 } |
|
1283 |
|
1284 |
|
1285 QBitmap QX11PixmapData::mask() const |
|
1286 { |
|
1287 QBitmap mask; |
|
1288 #ifndef QT_NO_XRENDER |
|
1289 if (picture && d == 32) { |
|
1290 // #### slow - there must be a better way.. |
|
1291 mask = QBitmap::fromImage(toImage().createAlphaMask()); |
|
1292 } else |
|
1293 #endif |
|
1294 if (d == 1) { |
|
1295 QX11PixmapData *that = const_cast<QX11PixmapData*>(this); |
|
1296 mask = QPixmap(that); |
|
1297 } else { |
|
1298 mask = mask_to_bitmap(xinfo.screen()); |
|
1299 } |
|
1300 return mask; |
|
1301 } |
|
1302 |
|
1303 |
|
1304 /*! |
|
1305 Sets a mask bitmap. |
|
1306 |
|
1307 The \a newmask bitmap defines the clip mask for this pixmap. Every |
|
1308 pixel in \a newmask corresponds to a pixel in this pixmap. Pixel |
|
1309 value 1 means opaque and pixel value 0 means transparent. The mask |
|
1310 must have the same size as this pixmap. |
|
1311 |
|
1312 \warning Setting the mask on a pixmap will cause any alpha channel |
|
1313 data to be cleared. For example: |
|
1314 \snippet doc/src/snippets/image/image.cpp 2 |
|
1315 Now, alpha and alphacopy are visually different. |
|
1316 |
|
1317 Setting a null mask resets the mask. |
|
1318 |
|
1319 The effect of this function is undefined when the pixmap is being |
|
1320 painted on. |
|
1321 |
|
1322 \sa mask(), {QPixmap#Pixmap Transformations}{Pixmap |
|
1323 Transformations}, QBitmap |
|
1324 */ |
|
1325 void QX11PixmapData::setMask(const QBitmap &newmask) |
|
1326 { |
|
1327 if (newmask.isNull()) { // clear mask |
|
1328 #ifndef QT_NO_XRENDER |
|
1329 if (picture && d == 32) { |
|
1330 QX11PixmapData newData(pixelType()); |
|
1331 newData.resize(w, h); |
|
1332 newData.fill(Qt::black); |
|
1333 XRenderComposite(X11->display, PictOpOver, |
|
1334 picture, 0, newData.picture, |
|
1335 0, 0, 0, 0, 0, 0, w, h); |
|
1336 release(); |
|
1337 *this = newData; |
|
1338 // the new QX11PixmapData object isn't referenced yet, so |
|
1339 // ref it |
|
1340 ref.ref(); |
|
1341 |
|
1342 // the below is to make sure the QX11PixmapData destructor |
|
1343 // doesn't delete our newly created render picture |
|
1344 newData.hd = 0; |
|
1345 newData.x11_mask = 0; |
|
1346 newData.picture = 0; |
|
1347 newData.mask_picture = 0; |
|
1348 newData.hd2 = 0; |
|
1349 } else |
|
1350 #endif |
|
1351 if (x11_mask) { |
|
1352 #ifndef QT_NO_XRENDER |
|
1353 if (picture) { |
|
1354 XRenderPictureAttributes attrs; |
|
1355 attrs.alpha_map = 0; |
|
1356 XRenderChangePicture(X11->display, picture, CPAlphaMap, |
|
1357 &attrs); |
|
1358 } |
|
1359 if (mask_picture) |
|
1360 XRenderFreePicture(X11->display, mask_picture); |
|
1361 mask_picture = 0; |
|
1362 #endif |
|
1363 XFreePixmap(X11->display, x11_mask); |
|
1364 x11_mask = 0; |
|
1365 } |
|
1366 return; |
|
1367 } |
|
1368 |
|
1369 #ifndef QT_NO_XRENDER |
|
1370 if (picture && d == 32) { |
|
1371 XRenderComposite(X11->display, PictOpSrc, |
|
1372 picture, newmask.x11PictureHandle(), |
|
1373 picture, 0, 0, 0, 0, 0, 0, w, h); |
|
1374 } else |
|
1375 #endif |
|
1376 if (depth() == 1) { |
|
1377 XGCValues vals; |
|
1378 vals.function = GXand; |
|
1379 GC gc = XCreateGC(X11->display, hd, GCFunction, &vals); |
|
1380 XCopyArea(X11->display, newmask.handle(), hd, gc, 0, 0, |
|
1381 width(), height(), 0, 0); |
|
1382 XFreeGC(X11->display, gc); |
|
1383 } else { |
|
1384 // ##### should or the masks together |
|
1385 if (x11_mask) { |
|
1386 XFreePixmap(X11->display, x11_mask); |
|
1387 #ifndef QT_NO_XRENDER |
|
1388 if (mask_picture) |
|
1389 XRenderFreePicture(X11->display, mask_picture); |
|
1390 #endif |
|
1391 } |
|
1392 x11_mask = QX11PixmapData::bitmap_to_mask(newmask, xinfo.screen()); |
|
1393 #ifndef QT_NO_XRENDER |
|
1394 if (picture) { |
|
1395 mask_picture = XRenderCreatePicture(X11->display, x11_mask, |
|
1396 XRenderFindStandardFormat(X11->display, PictStandardA1), 0, 0); |
|
1397 XRenderPictureAttributes attrs; |
|
1398 attrs.alpha_map = mask_picture; |
|
1399 XRenderChangePicture(X11->display, picture, CPAlphaMap, &attrs); |
|
1400 } |
|
1401 #endif |
|
1402 } |
|
1403 } |
|
1404 |
|
1405 int QX11PixmapData::metric(QPaintDevice::PaintDeviceMetric metric) const |
|
1406 { |
|
1407 switch (metric) { |
|
1408 case QPaintDevice::PdmWidth: |
|
1409 return w; |
|
1410 case QPaintDevice::PdmHeight: |
|
1411 return h; |
|
1412 case QPaintDevice::PdmNumColors: |
|
1413 return 1 << d; |
|
1414 case QPaintDevice::PdmDepth: |
|
1415 return d; |
|
1416 case QPaintDevice::PdmWidthMM: { |
|
1417 const int screen = xinfo.screen(); |
|
1418 const int mm = DisplayWidthMM(X11->display, screen) * w |
|
1419 / DisplayWidth(X11->display, screen); |
|
1420 return mm; |
|
1421 } |
|
1422 case QPaintDevice::PdmHeightMM: { |
|
1423 const int screen = xinfo.screen(); |
|
1424 const int mm = (DisplayHeightMM(X11->display, screen) * h) |
|
1425 / DisplayHeight(X11->display, screen); |
|
1426 return mm; |
|
1427 } |
|
1428 case QPaintDevice::PdmDpiX: |
|
1429 case QPaintDevice::PdmPhysicalDpiX: |
|
1430 return QX11Info::appDpiX(xinfo.screen()); |
|
1431 case QPaintDevice::PdmDpiY: |
|
1432 case QPaintDevice::PdmPhysicalDpiY: |
|
1433 return QX11Info::appDpiY(xinfo.screen()); |
|
1434 default: |
|
1435 qWarning("QX11PixmapData::metric(): Invalid metric"); |
|
1436 return 0; |
|
1437 } |
|
1438 } |
|
1439 |
|
1440 /*! |
|
1441 Converts the pixmap to a QImage. Returns a null image if the |
|
1442 conversion fails. |
|
1443 |
|
1444 If the pixmap has 1-bit depth, the returned image will also be 1 |
|
1445 bit deep. If the pixmap has 2- to 8-bit depth, the returned image |
|
1446 has 8-bit depth. If the pixmap has greater than 8-bit depth, the |
|
1447 returned image has 32-bit depth. |
|
1448 |
|
1449 Note that for the moment, alpha masks on monochrome images are |
|
1450 ignored. |
|
1451 |
|
1452 \sa fromImage(), {QImage#Image Formats}{Image Formats} |
|
1453 */ |
|
1454 |
|
1455 QImage QX11PixmapData::toImage() const |
|
1456 { |
|
1457 int d = depth(); |
|
1458 Visual *visual = (Visual *)xinfo.visual(); |
|
1459 bool trucol = (visual->c_class >= TrueColor) && d > 1; |
|
1460 |
|
1461 QImage::Format format = QImage::Format_Mono; |
|
1462 if (d > 1 && d <= 8) { |
|
1463 d = 8; |
|
1464 format = QImage::Format_Indexed8; |
|
1465 } |
|
1466 // we could run into the situation where d == 8 AND trucol is true, which can |
|
1467 // cause problems when converting to and from images. in this case, always treat |
|
1468 // the depth as 32... |
|
1469 if (d > 8 || trucol) { |
|
1470 d = 32; |
|
1471 format = QImage::Format_RGB32; |
|
1472 } |
|
1473 |
|
1474 XImage *xi = XGetImage(X11->display, hd, 0, 0, w, h, AllPlanes, |
|
1475 (d == 1) ? XYPixmap : ZPixmap); |
|
1476 |
|
1477 Q_CHECK_PTR(xi); |
|
1478 if (!xi) |
|
1479 return QImage(); |
|
1480 |
|
1481 if (picture && depth() == 32) { |
|
1482 QImage image(w, h, QImage::Format_ARGB32_Premultiplied); |
|
1483 memcpy(image.bits(), xi->data, xi->bytes_per_line * xi->height); |
|
1484 |
|
1485 // we may have to swap the byte order |
|
1486 if ((QSysInfo::ByteOrder == QSysInfo::LittleEndian && xi->byte_order == MSBFirst) |
|
1487 || (QSysInfo::ByteOrder == QSysInfo::BigEndian && xi->byte_order == LSBFirst)) |
|
1488 { |
|
1489 for (int i=0; i < image.height(); i++) { |
|
1490 uint *p = (uint*)image.scanLine(i); |
|
1491 uint *end = p + image.width(); |
|
1492 if ((xi->byte_order == LSBFirst && QSysInfo::ByteOrder == QSysInfo::BigEndian) |
|
1493 || (xi->byte_order == MSBFirst && QSysInfo::ByteOrder == QSysInfo::LittleEndian)) { |
|
1494 while (p < end) { |
|
1495 *p = ((*p << 24) & 0xff000000) | ((*p << 8) & 0x00ff0000) |
|
1496 | ((*p >> 8) & 0x0000ff00) | ((*p >> 24) & 0x000000ff); |
|
1497 p++; |
|
1498 } |
|
1499 } else if (xi->byte_order == MSBFirst && QSysInfo::ByteOrder == QSysInfo::BigEndian) { |
|
1500 while (p < end) { |
|
1501 *p = ((*p << 16) & 0x00ff0000) | ((*p >> 16) & 0x000000ff) |
|
1502 | ((*p ) & 0xff00ff00); |
|
1503 p++; |
|
1504 } |
|
1505 } |
|
1506 } |
|
1507 } |
|
1508 |
|
1509 // throw away image data |
|
1510 qSafeXDestroyImage(xi); |
|
1511 |
|
1512 return image; |
|
1513 } |
|
1514 |
|
1515 if (d == 1 && xi->bitmap_bit_order == LSBFirst) |
|
1516 format = QImage::Format_MonoLSB; |
|
1517 if (x11_mask && format == QImage::Format_RGB32) |
|
1518 format = QImage::Format_ARGB32; |
|
1519 |
|
1520 QImage image(w, h, format); |
|
1521 if (image.isNull()) // could not create image |
|
1522 return image; |
|
1523 |
|
1524 QImage alpha; |
|
1525 if (x11_mask) { |
|
1526 alpha = mask().toImage(); |
|
1527 } |
|
1528 bool ale = alpha.format() == QImage::Format_MonoLSB; |
|
1529 |
|
1530 if (trucol) { // truecolor |
|
1531 const uint red_mask = (uint)visual->red_mask; |
|
1532 const uint green_mask = (uint)visual->green_mask; |
|
1533 const uint blue_mask = (uint)visual->blue_mask; |
|
1534 const int red_shift = highest_bit(red_mask) - 7; |
|
1535 const int green_shift = highest_bit(green_mask) - 7; |
|
1536 const int blue_shift = highest_bit(blue_mask) - 7; |
|
1537 |
|
1538 const uint red_bits = n_bits(red_mask); |
|
1539 const uint green_bits = n_bits(green_mask); |
|
1540 const uint blue_bits = n_bits(blue_mask); |
|
1541 |
|
1542 static uint red_table_bits = 0; |
|
1543 static uint green_table_bits = 0; |
|
1544 static uint blue_table_bits = 0; |
|
1545 |
|
1546 if (red_bits < 8 && red_table_bits != red_bits) { |
|
1547 build_scale_table(&red_scale_table, red_bits); |
|
1548 red_table_bits = red_bits; |
|
1549 } |
|
1550 if (blue_bits < 8 && blue_table_bits != blue_bits) { |
|
1551 build_scale_table(&blue_scale_table, blue_bits); |
|
1552 blue_table_bits = blue_bits; |
|
1553 } |
|
1554 if (green_bits < 8 && green_table_bits != green_bits) { |
|
1555 build_scale_table(&green_scale_table, green_bits); |
|
1556 green_table_bits = green_bits; |
|
1557 } |
|
1558 |
|
1559 int r, g, b; |
|
1560 |
|
1561 QRgb *dst; |
|
1562 uchar *src; |
|
1563 uint pixel; |
|
1564 int bppc = xi->bits_per_pixel; |
|
1565 |
|
1566 if (bppc > 8 && xi->byte_order == LSBFirst) |
|
1567 bppc++; |
|
1568 |
|
1569 for (int y = 0; y < h; ++y) { |
|
1570 uchar* asrc = x11_mask ? alpha.scanLine(y) : 0; |
|
1571 dst = (QRgb *)image.scanLine(y); |
|
1572 src = (uchar *)xi->data + xi->bytes_per_line*y; |
|
1573 for (int x = 0; x < w; x++) { |
|
1574 switch (bppc) { |
|
1575 case 8: |
|
1576 pixel = *src++; |
|
1577 break; |
|
1578 case 16: // 16 bit MSB |
|
1579 pixel = src[1] | (uint)src[0] << 8; |
|
1580 src += 2; |
|
1581 break; |
|
1582 case 17: // 16 bit LSB |
|
1583 pixel = src[0] | (uint)src[1] << 8; |
|
1584 src += 2; |
|
1585 break; |
|
1586 case 24: // 24 bit MSB |
|
1587 pixel = src[2] | (uint)src[1] << 8 | (uint)src[0] << 16; |
|
1588 src += 3; |
|
1589 break; |
|
1590 case 25: // 24 bit LSB |
|
1591 pixel = src[0] | (uint)src[1] << 8 | (uint)src[2] << 16; |
|
1592 src += 3; |
|
1593 break; |
|
1594 case 32: // 32 bit MSB |
|
1595 pixel = src[3] | (uint)src[2] << 8 | (uint)src[1] << 16 | (uint)src[0] << 24; |
|
1596 src += 4; |
|
1597 break; |
|
1598 case 33: // 32 bit LSB |
|
1599 pixel = src[0] | (uint)src[1] << 8 | (uint)src[2] << 16 | (uint)src[3] << 24; |
|
1600 src += 4; |
|
1601 break; |
|
1602 default: // should not really happen |
|
1603 x = w; // leave loop |
|
1604 y = h; |
|
1605 pixel = 0; // eliminate compiler warning |
|
1606 qWarning("QPixmap::convertToImage: Invalid depth %d", bppc); |
|
1607 } |
|
1608 if (red_shift > 0) |
|
1609 r = (pixel & red_mask) >> red_shift; |
|
1610 else |
|
1611 r = (pixel & red_mask) << -red_shift; |
|
1612 if (green_shift > 0) |
|
1613 g = (pixel & green_mask) >> green_shift; |
|
1614 else |
|
1615 g = (pixel & green_mask) << -green_shift; |
|
1616 if (blue_shift > 0) |
|
1617 b = (pixel & blue_mask) >> blue_shift; |
|
1618 else |
|
1619 b = (pixel & blue_mask) << -blue_shift; |
|
1620 |
|
1621 if (red_bits < 8) |
|
1622 r = red_scale_table[r]; |
|
1623 if (green_bits < 8) |
|
1624 g = green_scale_table[g]; |
|
1625 if (blue_bits < 8) |
|
1626 b = blue_scale_table[b]; |
|
1627 |
|
1628 if (x11_mask) { |
|
1629 if (ale) { |
|
1630 *dst++ = (asrc[x >> 3] & (1 << (x & 7))) ? qRgba(r, g, b, 0xff) : 0; |
|
1631 } else { |
|
1632 *dst++ = (asrc[x >> 3] & (0x80 >> (x & 7))) ? qRgba(r, g, b, 0xff) : 0; |
|
1633 } |
|
1634 } else { |
|
1635 *dst++ = qRgb(r, g, b); |
|
1636 } |
|
1637 } |
|
1638 } |
|
1639 } else if (xi->bits_per_pixel == d) { // compatible depth |
|
1640 char *xidata = xi->data; // copy each scanline |
|
1641 int bpl = qMin(image.bytesPerLine(),xi->bytes_per_line); |
|
1642 for (int y=0; y<h; y++) { |
|
1643 memcpy(image.scanLine(y), xidata, bpl); |
|
1644 xidata += xi->bytes_per_line; |
|
1645 } |
|
1646 } else { |
|
1647 /* Typically 2 or 4 bits display depth */ |
|
1648 qWarning("QPixmap::convertToImage: Display not supported (bpp=%d)", |
|
1649 xi->bits_per_pixel); |
|
1650 return QImage(); |
|
1651 } |
|
1652 |
|
1653 if (d == 1) { // bitmap |
|
1654 image.setNumColors(2); |
|
1655 image.setColor(0, qRgb(255,255,255)); |
|
1656 image.setColor(1, qRgb(0,0,0)); |
|
1657 } else if (!trucol) { // pixmap with colormap |
|
1658 register uchar *p; |
|
1659 uchar *end; |
|
1660 uchar use[256]; // pixel-in-use table |
|
1661 uchar pix[256]; // pixel translation table |
|
1662 int ncols, bpl; |
|
1663 memset(use, 0, 256); |
|
1664 memset(pix, 0, 256); |
|
1665 bpl = image.bytesPerLine(); |
|
1666 |
|
1667 if (x11_mask) { // which pixels are used? |
|
1668 for (int i = 0; i < h; i++) { |
|
1669 uchar* asrc = alpha.scanLine(i); |
|
1670 p = image.scanLine(i); |
|
1671 if (ale) { |
|
1672 for (int x = 0; x < w; x++) { |
|
1673 if (asrc[x >> 3] & (1 << (x & 7))) |
|
1674 use[*p] = 1; |
|
1675 ++p; |
|
1676 } |
|
1677 } else { |
|
1678 for (int x = 0; x < w; x++) { |
|
1679 if (asrc[x >> 3] & (0x80 >> (x & 7))) |
|
1680 use[*p] = 1; |
|
1681 ++p; |
|
1682 } |
|
1683 } |
|
1684 } |
|
1685 } else { |
|
1686 for (int i = 0; i < h; i++) { |
|
1687 p = image.scanLine(i); |
|
1688 end = p + bpl; |
|
1689 while (p < end) |
|
1690 use[*p++] = 1; |
|
1691 } |
|
1692 } |
|
1693 ncols = 0; |
|
1694 for (int i = 0; i < 256; i++) { // build translation table |
|
1695 if (use[i]) |
|
1696 pix[i] = ncols++; |
|
1697 } |
|
1698 for (int i = 0; i < h; i++) { // translate pixels |
|
1699 p = image.scanLine(i); |
|
1700 end = p + bpl; |
|
1701 while (p < end) { |
|
1702 *p = pix[*p]; |
|
1703 p++; |
|
1704 } |
|
1705 } |
|
1706 if (x11_mask) { |
|
1707 int trans; |
|
1708 if (ncols < 256) { |
|
1709 trans = ncols++; |
|
1710 image.setNumColors(ncols); // create color table |
|
1711 image.setColor(trans, 0x00000000); |
|
1712 } else { |
|
1713 image.setNumColors(ncols); // create color table |
|
1714 // oh dear... no spare "transparent" pixel. |
|
1715 // use first pixel in image (as good as any). |
|
1716 trans = image.scanLine(0)[0]; |
|
1717 } |
|
1718 for (int i = 0; i < h; i++) { |
|
1719 uchar* asrc = alpha.scanLine(i); |
|
1720 p = image.scanLine(i); |
|
1721 if (ale) { |
|
1722 for (int x = 0; x < w; x++) { |
|
1723 if (!(asrc[x >> 3] & (1 << (x & 7)))) |
|
1724 *p = trans; |
|
1725 ++p; |
|
1726 } |
|
1727 } else { |
|
1728 for (int x = 0; x < w; x++) { |
|
1729 if (!(asrc[x >> 3] & (1 << (7 -(x & 7))))) |
|
1730 *p = trans; |
|
1731 ++p; |
|
1732 } |
|
1733 } |
|
1734 } |
|
1735 } else { |
|
1736 image.setNumColors(ncols); // create color table |
|
1737 } |
|
1738 QVector<QColor> colors = QColormap::instance(xinfo.screen()).colormap(); |
|
1739 int j = 0; |
|
1740 for (int i=0; i<colors.size(); i++) { // translate pixels |
|
1741 if (use[i]) |
|
1742 image.setColor(j++, 0xff000000 | colors.at(i).rgb()); |
|
1743 } |
|
1744 } |
|
1745 |
|
1746 qSafeXDestroyImage(xi); |
|
1747 |
|
1748 return image; |
|
1749 } |
|
1750 |
|
1751 /*! |
|
1752 Returns a copy of the pixmap that is transformed using the given |
|
1753 transformation \a matrix and transformation \a mode. The original |
|
1754 pixmap is not changed. |
|
1755 |
|
1756 The transformation \a matrix is internally adjusted to compensate |
|
1757 for unwanted translation; i.e. the pixmap produced is the smallest |
|
1758 pixmap that contains all the transformed points of the original |
|
1759 pixmap. Use the trueMatrix() function to retrieve the actual |
|
1760 matrix used for transforming the pixmap. |
|
1761 |
|
1762 This function is slow because it involves transformation to a |
|
1763 QImage, non-trivial computations and a transformation back to a |
|
1764 QPixmap. |
|
1765 |
|
1766 \sa trueMatrix(), {QPixmap#Pixmap Transformations}{Pixmap |
|
1767 Transformations} |
|
1768 */ |
|
1769 QPixmap QX11PixmapData::transformed(const QTransform &transform, |
|
1770 Qt::TransformationMode mode ) const |
|
1771 { |
|
1772 if (mode == Qt::SmoothTransformation || transform.type() >= QTransform::TxProject) { |
|
1773 QImage image = toImage(); |
|
1774 return QPixmap::fromImage(image.transformed(transform, mode)); |
|
1775 } |
|
1776 |
|
1777 uint w = 0; |
|
1778 uint h = 0; // size of target pixmap |
|
1779 uint ws, hs; // size of source pixmap |
|
1780 uchar *dptr; // data in target pixmap |
|
1781 uint dbpl, dbytes; // bytes per line/bytes total |
|
1782 uchar *sptr; // data in original pixmap |
|
1783 int sbpl; // bytes per line in original |
|
1784 int bpp; // bits per pixel |
|
1785 bool depth1 = depth() == 1; |
|
1786 Display *dpy = X11->display; |
|
1787 |
|
1788 ws = width(); |
|
1789 hs = height(); |
|
1790 |
|
1791 QTransform mat(transform.m11(), transform.m12(), transform.m13(), |
|
1792 transform.m21(), transform.m22(), transform.m23(), |
|
1793 0., 0., 1); |
|
1794 bool complex_xform = false; |
|
1795 qreal scaledWidth; |
|
1796 qreal scaledHeight; |
|
1797 |
|
1798 if (mat.type() <= QTransform::TxScale) { |
|
1799 scaledHeight = qAbs(mat.m22()) * hs + 0.9999; |
|
1800 scaledWidth = qAbs(mat.m11()) * ws + 0.9999; |
|
1801 h = qAbs(int(scaledHeight)); |
|
1802 w = qAbs(int(scaledWidth)); |
|
1803 } else { // rotation or shearing |
|
1804 QPolygonF a(QRectF(0, 0, ws, hs)); |
|
1805 a = mat.map(a); |
|
1806 QRect r = a.boundingRect().toAlignedRect(); |
|
1807 w = r.width(); |
|
1808 h = r.height(); |
|
1809 scaledWidth = w; |
|
1810 scaledHeight = h; |
|
1811 complex_xform = true; |
|
1812 } |
|
1813 mat = QPixmap::trueMatrix(mat, ws, hs); // true matrix |
|
1814 |
|
1815 bool invertible; |
|
1816 mat = mat.inverted(&invertible); // invert matrix |
|
1817 |
|
1818 if (h == 0 || w == 0 || !invertible |
|
1819 || qAbs(scaledWidth) >= 32768 || qAbs(scaledHeight) >= 32768 ) |
|
1820 // error, return null pixmap |
|
1821 return QPixmap(); |
|
1822 |
|
1823 #if defined(QT_MITSHM) |
|
1824 static bool try_once = true; |
|
1825 if (try_once) { |
|
1826 try_once = false; |
|
1827 if (!xshminit) |
|
1828 qt_create_mitshm_buffer(this, 800, 600); |
|
1829 } |
|
1830 |
|
1831 bool use_mitshm = xshmimg && !depth1 && |
|
1832 xshmimg->width >= w && xshmimg->height >= h; |
|
1833 #endif |
|
1834 XImage *xi = XGetImage(X11->display, handle(), 0, 0, ws, hs, AllPlanes, |
|
1835 depth1 ? XYPixmap : ZPixmap); |
|
1836 |
|
1837 if (!xi) |
|
1838 return QPixmap(); |
|
1839 |
|
1840 sbpl = xi->bytes_per_line; |
|
1841 sptr = (uchar *)xi->data; |
|
1842 bpp = xi->bits_per_pixel; |
|
1843 |
|
1844 if (depth1) |
|
1845 dbpl = (w+7)/8; |
|
1846 else |
|
1847 dbpl = ((w*bpp+31)/32)*4; |
|
1848 dbytes = dbpl*h; |
|
1849 |
|
1850 #if defined(QT_MITSHM) |
|
1851 if (use_mitshm) { |
|
1852 dptr = (uchar *)xshmimg->data; |
|
1853 uchar fillbyte = bpp == 8 ? white.pixel() : 0xff; |
|
1854 for (int y=0; y<h; y++) |
|
1855 memset(dptr + y*xshmimg->bytes_per_line, fillbyte, dbpl); |
|
1856 } else { |
|
1857 #endif |
|
1858 dptr = (uchar *)malloc(dbytes); // create buffer for bits |
|
1859 Q_CHECK_PTR(dptr); |
|
1860 if (depth1) // fill with zeros |
|
1861 memset(dptr, 0, dbytes); |
|
1862 else if (bpp == 8) // fill with background color |
|
1863 memset(dptr, WhitePixel(X11->display, xinfo.screen()), dbytes); |
|
1864 else |
|
1865 memset(dptr, 0, dbytes); |
|
1866 #if defined(QT_MITSHM) |
|
1867 } |
|
1868 #endif |
|
1869 |
|
1870 // #define QT_DEBUG_XIMAGE |
|
1871 #if defined(QT_DEBUG_XIMAGE) |
|
1872 qDebug("----IMAGE--INFO--------------"); |
|
1873 qDebug("width............. %d", xi->width); |
|
1874 qDebug("height............ %d", xi->height); |
|
1875 qDebug("xoffset........... %d", xi->xoffset); |
|
1876 qDebug("format............ %d", xi->format); |
|
1877 qDebug("byte order........ %d", xi->byte_order); |
|
1878 qDebug("bitmap unit....... %d", xi->bitmap_unit); |
|
1879 qDebug("bitmap bit order.. %d", xi->bitmap_bit_order); |
|
1880 qDebug("depth............. %d", xi->depth); |
|
1881 qDebug("bytes per line.... %d", xi->bytes_per_line); |
|
1882 qDebug("bits per pixel.... %d", xi->bits_per_pixel); |
|
1883 #endif |
|
1884 |
|
1885 int type; |
|
1886 if (xi->bitmap_bit_order == MSBFirst) |
|
1887 type = QT_XFORM_TYPE_MSBFIRST; |
|
1888 else |
|
1889 type = QT_XFORM_TYPE_LSBFIRST; |
|
1890 int xbpl, p_inc; |
|
1891 if (depth1) { |
|
1892 xbpl = (w+7)/8; |
|
1893 p_inc = dbpl - xbpl; |
|
1894 } else { |
|
1895 xbpl = (w*bpp)/8; |
|
1896 p_inc = dbpl - xbpl; |
|
1897 #if defined(QT_MITSHM) |
|
1898 if (use_mitshm) |
|
1899 p_inc = xshmimg->bytes_per_line - xbpl; |
|
1900 #endif |
|
1901 } |
|
1902 |
|
1903 if (!qt_xForm_helper(mat, xi->xoffset, type, bpp, dptr, xbpl, p_inc, h, sptr, sbpl, ws, hs)){ |
|
1904 qWarning("QPixmap::transform: display not supported (bpp=%d)",bpp); |
|
1905 QPixmap pm; |
|
1906 return pm; |
|
1907 } |
|
1908 |
|
1909 qSafeXDestroyImage(xi); |
|
1910 |
|
1911 if (depth1) { // mono bitmap |
|
1912 QBitmap bm = QBitmap::fromData(QSize(w, h), dptr, |
|
1913 BitmapBitOrder(X11->display) == MSBFirst |
|
1914 ? QImage::Format_Mono |
|
1915 : QImage::Format_MonoLSB); |
|
1916 free(dptr); |
|
1917 return bm; |
|
1918 } else { // color pixmap |
|
1919 QPixmap pm; |
|
1920 QX11PixmapData *x11Data = static_cast<QX11PixmapData*>(pm.data.data()); |
|
1921 x11Data->flags &= ~QX11PixmapData::Uninitialized; |
|
1922 x11Data->xinfo = xinfo; |
|
1923 x11Data->d = d; |
|
1924 x11Data->w = w; |
|
1925 x11Data->h = h; |
|
1926 x11Data->is_null = (w <= 0 || h <= 0); |
|
1927 x11Data->hd = (Qt::HANDLE)XCreatePixmap(X11->display, |
|
1928 RootWindow(X11->display, xinfo.screen()), |
|
1929 w, h, d); |
|
1930 #ifndef QT_NO_XRENDER |
|
1931 if (X11->use_xrender) { |
|
1932 XRenderPictFormat *format = x11Data->d == 32 |
|
1933 ? XRenderFindStandardFormat(X11->display, PictStandardARGB32) |
|
1934 : XRenderFindVisualFormat(X11->display, (Visual *) x11Data->xinfo.visual()); |
|
1935 x11Data->picture = XRenderCreatePicture(X11->display, x11Data->hd, format, 0, 0); |
|
1936 } |
|
1937 #endif // QT_NO_XRENDER |
|
1938 |
|
1939 GC gc = XCreateGC(X11->display, x11Data->hd, 0, 0); |
|
1940 #if defined(QT_MITSHM) |
|
1941 if (use_mitshm) { |
|
1942 XCopyArea(dpy, xshmpm, x11Data->hd, gc, 0, 0, w, h, 0, 0); |
|
1943 } else |
|
1944 #endif |
|
1945 { |
|
1946 xi = XCreateImage(dpy, (Visual*)x11Data->xinfo.visual(), |
|
1947 x11Data->d, |
|
1948 ZPixmap, 0, (char *)dptr, w, h, 32, 0); |
|
1949 XPutImage(dpy, pm.handle(), gc, xi, 0, 0, 0, 0, w, h); |
|
1950 qSafeXDestroyImage(xi); |
|
1951 } |
|
1952 XFreeGC(X11->display, gc); |
|
1953 |
|
1954 if (x11_mask) { // xform mask, too |
|
1955 pm.setMask(mask_to_bitmap(xinfo.screen()).transformed(transform)); |
|
1956 } else if (d != 32 && complex_xform) { // need a mask! |
|
1957 QBitmap mask(ws, hs); |
|
1958 mask.fill(Qt::color1); |
|
1959 pm.setMask(mask.transformed(transform)); |
|
1960 } |
|
1961 return pm; |
|
1962 } |
|
1963 } |
|
1964 |
|
1965 int QPixmap::x11SetDefaultScreen(int screen) |
|
1966 { |
|
1967 int old = defaultScreen; |
|
1968 defaultScreen = screen; |
|
1969 return old; |
|
1970 } |
|
1971 |
|
1972 void QPixmap::x11SetScreen(int screen) |
|
1973 { |
|
1974 if (paintingActive()) { |
|
1975 qWarning("QPixmap::x11SetScreen(): Cannot change screens during painting"); |
|
1976 return; |
|
1977 } |
|
1978 |
|
1979 if (data->classId() != QPixmapData::X11Class) |
|
1980 return; |
|
1981 |
|
1982 if (screen < 0) |
|
1983 screen = QX11Info::appScreen(); |
|
1984 |
|
1985 QX11PixmapData *x11Data = static_cast<QX11PixmapData*>(data.data()); |
|
1986 if (screen == x11Data->xinfo.screen()) |
|
1987 return; // nothing to do |
|
1988 |
|
1989 if (isNull()) { |
|
1990 QX11InfoData* xd = x11Data->xinfo.getX11Data(true); |
|
1991 xd->screen = screen; |
|
1992 xd->depth = QX11Info::appDepth(screen); |
|
1993 xd->cells = QX11Info::appCells(screen); |
|
1994 xd->colormap = QX11Info::appColormap(screen); |
|
1995 xd->defaultColormap = QX11Info::appDefaultColormap(screen); |
|
1996 xd->visual = (Visual *)QX11Info::appVisual(screen); |
|
1997 xd->defaultVisual = QX11Info::appDefaultVisual(screen); |
|
1998 x11Data->xinfo.setX11Data(xd); |
|
1999 return; |
|
2000 } |
|
2001 #if 0 |
|
2002 qDebug("QPixmap::x11SetScreen for %p from %d to %d. Size is %d/%d", x11Data, x11Data->xinfo.screen(), screen, width(), height()); |
|
2003 #endif |
|
2004 |
|
2005 x11SetDefaultScreen(screen); |
|
2006 *this = qt_toX11Pixmap(toImage()); |
|
2007 } |
|
2008 |
|
2009 QPixmap QPixmap::grabWindow(WId window, int x, int y, int w, int h) |
|
2010 { |
|
2011 if (w == 0 || h == 0) |
|
2012 return QPixmap(); |
|
2013 |
|
2014 Display *dpy = X11->display; |
|
2015 XWindowAttributes window_attr; |
|
2016 if (!XGetWindowAttributes(dpy, window, &window_attr)) |
|
2017 return QPixmap(); |
|
2018 |
|
2019 if (w < 0) |
|
2020 w = window_attr.width - x; |
|
2021 if (h < 0) |
|
2022 h = window_attr.height - y; |
|
2023 |
|
2024 // determine the screen |
|
2025 int scr; |
|
2026 for (scr = 0; scr < ScreenCount(dpy); ++scr) { |
|
2027 if (window_attr.root == RootWindow(dpy, scr)) // found it |
|
2028 break; |
|
2029 } |
|
2030 if (scr >= ScreenCount(dpy)) // sanity check |
|
2031 return QPixmap(); |
|
2032 |
|
2033 |
|
2034 // get the depth of the root window |
|
2035 XWindowAttributes root_attr; |
|
2036 if (!XGetWindowAttributes(dpy, window_attr.root, &root_attr)) |
|
2037 return QPixmap(); |
|
2038 |
|
2039 if (window_attr.depth == root_attr.depth) { |
|
2040 // if the depth of the specified window and the root window are the |
|
2041 // same, grab pixels from the root window (so that we get the any |
|
2042 // overlapping windows and window manager frames) |
|
2043 |
|
2044 // map x and y to the root window |
|
2045 WId unused; |
|
2046 if (!XTranslateCoordinates(dpy, window, window_attr.root, x, y, |
|
2047 &x, &y, &unused)) |
|
2048 return QPixmap(); |
|
2049 |
|
2050 window = window_attr.root; |
|
2051 window_attr = root_attr; |
|
2052 } |
|
2053 |
|
2054 QX11PixmapData *data = new QX11PixmapData(QPixmapData::PixmapType); |
|
2055 |
|
2056 void qt_x11_getX11InfoForWindow(QX11Info * xinfo, const XWindowAttributes &a); |
|
2057 qt_x11_getX11InfoForWindow(&data->xinfo,window_attr); |
|
2058 |
|
2059 data->resize(w, h); |
|
2060 |
|
2061 QPixmap pm(data); |
|
2062 |
|
2063 data->flags &= ~QX11PixmapData::Uninitialized; |
|
2064 pm.x11SetScreen(scr); |
|
2065 |
|
2066 GC gc = XCreateGC(dpy, pm.handle(), 0, 0); |
|
2067 XSetSubwindowMode(dpy, gc, IncludeInferiors); |
|
2068 XCopyArea(dpy, window, pm.handle(), gc, x, y, w, h, 0, 0); |
|
2069 XFreeGC(dpy, gc); |
|
2070 |
|
2071 return pm; |
|
2072 } |
|
2073 |
|
2074 bool QX11PixmapData::hasAlphaChannel() const |
|
2075 { |
|
2076 return d == 32; |
|
2077 } |
|
2078 |
|
2079 const QX11Info &QPixmap::x11Info() const |
|
2080 { |
|
2081 if (data->classId() == QPixmapData::X11Class) |
|
2082 return static_cast<QX11PixmapData*>(data.data())->xinfo; |
|
2083 else { |
|
2084 static QX11Info nullX11Info; |
|
2085 return nullX11Info; |
|
2086 } |
|
2087 } |
|
2088 |
|
2089 #if !defined(QT_NO_XRENDER) |
|
2090 static XRenderPictFormat *qt_renderformat_for_depth(const QX11Info &xinfo, int depth) |
|
2091 { |
|
2092 if (depth == 1) |
|
2093 return XRenderFindStandardFormat(X11->display, PictStandardA1); |
|
2094 else if (depth == 32) |
|
2095 return XRenderFindStandardFormat(X11->display, PictStandardARGB32); |
|
2096 else |
|
2097 return XRenderFindVisualFormat(X11->display, (Visual *)xinfo.visual()); |
|
2098 } |
|
2099 #endif |
|
2100 |
|
2101 QPaintEngine* QX11PixmapData::paintEngine() const |
|
2102 { |
|
2103 QX11PixmapData *that = const_cast<QX11PixmapData*>(this); |
|
2104 |
|
2105 if ((flags & Readonly) && share_mode == QPixmap::ImplicitlyShared) { |
|
2106 // if someone wants to draw onto us, copy the shared contents |
|
2107 // and turn it into a fully fledged QPixmap |
|
2108 ::Pixmap hd_copy = XCreatePixmap(X11->display, RootWindow(X11->display, xinfo.screen()), |
|
2109 w, h, d); |
|
2110 #if !defined(QT_NO_XRENDER) |
|
2111 XRenderPictFormat *format = qt_renderformat_for_depth(xinfo, d); |
|
2112 ::Picture picture_copy = XRenderCreatePicture(X11->display, hd_copy, format, 0, 0); |
|
2113 |
|
2114 if (picture && d == 32) { |
|
2115 XRenderComposite(X11->display, PictOpSrc, picture, 0, picture_copy, |
|
2116 0, 0, 0, 0, 0, 0, w, h); |
|
2117 XRenderFreePicture(X11->display, picture); |
|
2118 that->picture = picture_copy; |
|
2119 } else |
|
2120 #endif |
|
2121 { |
|
2122 GC gc = XCreateGC(X11->display, hd_copy, 0, 0); |
|
2123 XCopyArea(X11->display, hd, hd_copy, gc, 0, 0, w, h, 0, 0); |
|
2124 XFreeGC(X11->display, gc); |
|
2125 } |
|
2126 that->hd = hd_copy; |
|
2127 that->flags &= ~QX11PixmapData::Readonly; |
|
2128 } |
|
2129 |
|
2130 if (!that->pengine) |
|
2131 that->pengine = new QX11PaintEngine; |
|
2132 return that->pengine; |
|
2133 } |
|
2134 |
|
2135 Qt::HANDLE QPixmap::x11PictureHandle() const |
|
2136 { |
|
2137 #ifndef QT_NO_XRENDER |
|
2138 if (data->classId() == QPixmapData::X11Class) |
|
2139 return static_cast<const QX11PixmapData*>(data.data())->picture; |
|
2140 else |
|
2141 return 0; |
|
2142 #else |
|
2143 return 0; |
|
2144 #endif // QT_NO_XRENDER |
|
2145 } |
|
2146 |
|
2147 Qt::HANDLE QX11PixmapData::x11ConvertToDefaultDepth() |
|
2148 { |
|
2149 #ifndef QT_NO_XRENDER |
|
2150 if (d == QX11Info::appDepth() || !X11->use_xrender) |
|
2151 return hd; |
|
2152 if (!hd2) { |
|
2153 hd2 = XCreatePixmap(xinfo.display(), hd, w, h, QX11Info::appDepth()); |
|
2154 XRenderPictFormat *format = XRenderFindVisualFormat(xinfo.display(), |
|
2155 (Visual*) xinfo.visual()); |
|
2156 Picture pic = XRenderCreatePicture(xinfo.display(), hd2, format, 0, 0); |
|
2157 XRenderComposite(xinfo.display(), PictOpSrc, picture, |
|
2158 XNone, pic, 0, 0, 0, 0, 0, 0, w, h); |
|
2159 XRenderFreePicture(xinfo.display(), pic); |
|
2160 } |
|
2161 return hd2; |
|
2162 #else |
|
2163 return hd; |
|
2164 #endif |
|
2165 } |
|
2166 |
|
2167 void QX11PixmapData::copy(const QPixmapData *data, const QRect &rect) |
|
2168 { |
|
2169 if (data->pixelType() == BitmapType) { |
|
2170 fromImage(data->toImage().copy(rect), Qt::AutoColor); |
|
2171 return; |
|
2172 } |
|
2173 |
|
2174 const QX11PixmapData *x11Data = static_cast<const QX11PixmapData*>(data); |
|
2175 |
|
2176 setSerialNumber(++qt_pixmap_serial); |
|
2177 |
|
2178 flags &= ~Uninitialized; |
|
2179 xinfo = x11Data->xinfo; |
|
2180 d = x11Data->d; |
|
2181 w = rect.width(); |
|
2182 h = rect.height(); |
|
2183 is_null = (w <= 0 || h <= 0); |
|
2184 hd = (Qt::HANDLE)XCreatePixmap(X11->display, |
|
2185 RootWindow(X11->display, x11Data->xinfo.screen()), |
|
2186 w, h, d); |
|
2187 #ifndef QT_NO_XRENDER |
|
2188 if (X11->use_xrender) { |
|
2189 XRenderPictFormat *format = d == 32 |
|
2190 ? XRenderFindStandardFormat(X11->display, PictStandardARGB32) |
|
2191 : XRenderFindVisualFormat(X11->display, (Visual *)xinfo.visual()); |
|
2192 picture = XRenderCreatePicture(X11->display, hd, format, 0, 0); |
|
2193 } |
|
2194 #endif // QT_NO_XRENDER |
|
2195 if (x11Data->x11_mask) { |
|
2196 x11_mask = XCreatePixmap(X11->display, hd, w, h, 1); |
|
2197 #ifndef QT_NO_XRENDER |
|
2198 if (X11->use_xrender) { |
|
2199 mask_picture = XRenderCreatePicture(X11->display, x11_mask, |
|
2200 XRenderFindStandardFormat(X11->display, PictStandardA1), 0, 0); |
|
2201 XRenderPictureAttributes attrs; |
|
2202 attrs.alpha_map = x11Data->mask_picture; |
|
2203 XRenderChangePicture(X11->display, x11Data->picture, CPAlphaMap, &attrs); |
|
2204 } |
|
2205 #endif |
|
2206 } |
|
2207 |
|
2208 #if !defined(QT_NO_XRENDER) |
|
2209 if (x11Data->picture && x11Data->d == 32) { |
|
2210 XRenderComposite(X11->display, PictOpSrc, |
|
2211 x11Data->picture, 0, picture, |
|
2212 rect.x(), rect.y(), 0, 0, 0, 0, w, h); |
|
2213 } else |
|
2214 #endif |
|
2215 { |
|
2216 GC gc = XCreateGC(X11->display, hd, 0, 0); |
|
2217 XCopyArea(X11->display, x11Data->hd, hd, gc, |
|
2218 rect.x(), rect.y(), w, h, 0, 0); |
|
2219 if (x11Data->x11_mask) { |
|
2220 GC monogc = XCreateGC(X11->display, x11_mask, 0, 0); |
|
2221 XCopyArea(X11->display, x11Data->x11_mask, x11_mask, monogc, |
|
2222 rect.x(), rect.y(), w, h, 0, 0); |
|
2223 XFreeGC(X11->display, monogc); |
|
2224 } |
|
2225 XFreeGC(X11->display, gc); |
|
2226 } |
|
2227 } |
|
2228 |
|
2229 bool QX11PixmapData::scroll(int dx, int dy, const QRect &rect) |
|
2230 { |
|
2231 GC gc = XCreateGC(X11->display, hd, 0, 0); |
|
2232 XCopyArea(X11->display, hd, hd, gc, |
|
2233 rect.left(), rect.top(), rect.width(), rect.height(), |
|
2234 rect.left() + dx, rect.top() + dy); |
|
2235 XFreeGC(X11->display, gc); |
|
2236 return true; |
|
2237 } |
|
2238 |
|
2239 #if !defined(QT_NO_XRENDER) |
|
2240 void QX11PixmapData::convertToARGB32(bool preserveContents) |
|
2241 { |
|
2242 if (!X11->use_xrender) |
|
2243 return; |
|
2244 |
|
2245 // Q_ASSERT(count == 1); |
|
2246 if ((flags & Readonly) && share_mode == QPixmap::ExplicitlyShared) |
|
2247 return; |
|
2248 |
|
2249 Pixmap pm = XCreatePixmap(X11->display, RootWindow(X11->display, xinfo.screen()), |
|
2250 w, h, 32); |
|
2251 Picture p = XRenderCreatePicture(X11->display, pm, |
|
2252 XRenderFindStandardFormat(X11->display, PictStandardARGB32), 0, 0); |
|
2253 if (picture) { |
|
2254 if (preserveContents) |
|
2255 XRenderComposite(X11->display, PictOpSrc, picture, 0, p, 0, 0, 0, 0, 0, 0, w, h); |
|
2256 if (!(flags & Readonly)) |
|
2257 XRenderFreePicture(X11->display, picture); |
|
2258 } |
|
2259 if (hd && !(flags & Readonly)) |
|
2260 XFreePixmap(X11->display, hd); |
|
2261 if (x11_mask) { |
|
2262 XFreePixmap(X11->display, x11_mask); |
|
2263 if (mask_picture) |
|
2264 XRenderFreePicture(X11->display, mask_picture); |
|
2265 x11_mask = 0; |
|
2266 mask_picture = 0; |
|
2267 } |
|
2268 hd = pm; |
|
2269 picture = p; |
|
2270 d = 32; |
|
2271 } |
|
2272 #endif |
|
2273 |
|
2274 QPixmap QPixmap::fromX11Pixmap(Qt::HANDLE pixmap, QPixmap::ShareMode mode) |
|
2275 { |
|
2276 Window root; |
|
2277 int x; |
|
2278 int y; |
|
2279 uint width; |
|
2280 uint height; |
|
2281 uint border_width; |
|
2282 uint depth; |
|
2283 XWindowAttributes win_attribs; |
|
2284 int num_screens = ScreenCount(X11->display); |
|
2285 int screen = 0; |
|
2286 |
|
2287 XGetGeometry(X11->display, pixmap, &root, &x, &y, &width, &height, &border_width, &depth); |
|
2288 XGetWindowAttributes(X11->display, root, &win_attribs); |
|
2289 |
|
2290 for (; screen < num_screens; ++screen) { |
|
2291 if (win_attribs.screen == ScreenOfDisplay(X11->display, screen)) |
|
2292 break; |
|
2293 } |
|
2294 |
|
2295 QX11PixmapData *data = new QX11PixmapData(depth == 1 ? QPixmapData::BitmapType : QPixmapData::PixmapType); |
|
2296 data->setSerialNumber(++qt_pixmap_serial); |
|
2297 data->flags = QX11PixmapData::Readonly; |
|
2298 data->share_mode = mode; |
|
2299 data->w = width; |
|
2300 data->h = height; |
|
2301 data->is_null = (width <= 0 || height <= 0); |
|
2302 data->d = depth; |
|
2303 data->hd = pixmap; |
|
2304 |
|
2305 if (defaultScreen >= 0 && defaultScreen != screen) { |
|
2306 QX11InfoData* xd = data->xinfo.getX11Data(true); |
|
2307 xd->screen = defaultScreen; |
|
2308 xd->depth = QX11Info::appDepth(xd->screen); |
|
2309 xd->cells = QX11Info::appCells(xd->screen); |
|
2310 xd->colormap = QX11Info::appColormap(xd->screen); |
|
2311 xd->defaultColormap = QX11Info::appDefaultColormap(xd->screen); |
|
2312 xd->visual = (Visual *)QX11Info::appVisual(xd->screen); |
|
2313 xd->defaultVisual = QX11Info::appDefaultVisual(xd->screen); |
|
2314 data->xinfo.setX11Data(xd); |
|
2315 } |
|
2316 |
|
2317 #ifndef QT_NO_XRENDER |
|
2318 if (X11->use_xrender) { |
|
2319 XRenderPictFormat *format = qt_renderformat_for_depth(data->xinfo, depth); |
|
2320 data->picture = XRenderCreatePicture(X11->display, data->hd, format, 0, 0); |
|
2321 } |
|
2322 #endif // QT_NO_XRENDER |
|
2323 |
|
2324 return QPixmap(data); |
|
2325 } |
|
2326 |
|
2327 |
|
2328 QT_END_NAMESPACE |