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<h1 class="title">svgalibscreen.cpp Example File</h1>
<span class="small-subtitle">qws/svgalib/svgalibscreen.cpp</span>
<!-- $$$qws/svgalib/svgalibscreen.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp"> <span class="comment">/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
<span class="preprocessor">#include "svgalibscreen.h"</span>
<span class="preprocessor">#include "svgalibsurface.h"</span>
<span class="preprocessor">#include <QVector></span>
<span class="preprocessor">#include <QApplication></span>
<span class="preprocessor">#include <QColor></span>
<span class="preprocessor">#include <QWidget></span>
<span class="preprocessor">#include <math.h></span>
<span class="keyword">static</span> <span class="type">int</span> getModeDepth(vga_modeinfo <span class="operator">*</span>mode)
{
<span class="keyword">const</span> <span class="type">int</span> bits <span class="operator">=</span> <span class="type">int</span>(log2(mode<span class="operator">-</span><span class="operator">></span>colors));
<span class="keyword">if</span> (bits <span class="operator">=</span><span class="operator">=</span> <span class="number">24</span> <span class="operator">&</span><span class="operator">&</span> mode<span class="operator">-</span><span class="operator">></span>bytesperpixel <span class="operator">=</span><span class="operator">=</span> <span class="number">4</span>)
<span class="keyword">return</span> <span class="number">32</span>;
<span class="keyword">return</span> bits;
}
<span class="type">bool</span> SvgalibScreen<span class="operator">::</span>connect(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>displaySpec)
{
<span class="type">int</span> mode <span class="operator">=</span> vga_getdefaultmode();
<span class="keyword">if</span> (mode <span class="operator"><</span><span class="operator">=</span> <span class="number">0</span>) {
<a href="qtglobal.html#qCritical">qCritical</a>(<span class="string">"SvgalibScreen::connect(): invalid vga mode"</span>);
<span class="keyword">return</span> <span class="keyword">false</span>;
}
vga_modeinfo <span class="operator">*</span>modeinfo <span class="operator">=</span> vga_getmodeinfo(mode);
<span class="type"><a href="qscreen.html">QScreen</a></span><span class="operator">::</span>lstep <span class="operator">=</span> modeinfo<span class="operator">-</span><span class="operator">></span>linewidth;
<span class="type"><a href="qscreen.html">QScreen</a></span><span class="operator">::</span>dw <span class="operator">=</span> <span class="type"><a href="qscreen.html">QScreen</a></span><span class="operator">::</span>w <span class="operator">=</span> modeinfo<span class="operator">-</span><span class="operator">></span>width;
<span class="type"><a href="qscreen.html">QScreen</a></span><span class="operator">::</span>dh <span class="operator">=</span> <span class="type"><a href="qscreen.html">QScreen</a></span><span class="operator">::</span>h <span class="operator">=</span> modeinfo<span class="operator">-</span><span class="operator">></span>height;
<span class="type"><a href="qscreen.html">QScreen</a></span><span class="operator">::</span>d <span class="operator">=</span> getModeDepth(modeinfo);
<span class="type"><a href="qscreen.html">QScreen</a></span><span class="operator">::</span>size <span class="operator">=</span> <span class="type"><a href="qscreen.html">QScreen</a></span><span class="operator">::</span>lstep <span class="operator">*</span> dh;
<span class="type"><a href="qscreen.html">QScreen</a></span><span class="operator">::</span>data <span class="operator">=</span> <span class="number">0</span>;
<span class="keyword">switch</span> (depth()) {
<span class="keyword">case</span> <span class="number">32</span>:
setPixelFormat(<span class="type"><a href="qimage.html">QImage</a></span><span class="operator">::</span>Format_ARGB32_Premultiplied);
<span class="keyword">break</span>;
<span class="keyword">case</span> <span class="number">24</span>:
setPixelFormat(<span class="type"><a href="qimage.html">QImage</a></span><span class="operator">::</span>Format_RGB888);
<span class="keyword">break</span>;
<span class="keyword">case</span> <span class="number">16</span>:
setPixelFormat(<span class="type"><a href="qimage.html">QImage</a></span><span class="operator">::</span>Format_RGB16);
<span class="keyword">break</span>;
<span class="keyword">case</span> <span class="number">15</span>:
setPixelFormat(<span class="type"><a href="qimage.html">QImage</a></span><span class="operator">::</span>Format_RGB555);
<span class="keyword">break</span>;
<span class="keyword">default</span>:
<span class="keyword">break</span>;
}
<span class="keyword">const</span> <span class="type">int</span> dpi <span class="operator">=</span> <span class="number">72</span>;
<span class="type"><a href="qscreen.html">QScreen</a></span><span class="operator">::</span>physWidth <span class="operator">=</span> <a href="qtglobal.html#qRound">qRound</a>(<span class="type"><a href="qscreen.html">QScreen</a></span><span class="operator">::</span>dw <span class="operator">*</span> <span class="number">25.4</span> <span class="operator">/</span> dpi);
<span class="type"><a href="qscreen.html">QScreen</a></span><span class="operator">::</span>physHeight <span class="operator">=</span> <a href="qtglobal.html#qRound">qRound</a>(<span class="type"><a href="qscreen.html">QScreen</a></span><span class="operator">::</span>dh <span class="operator">*</span> <span class="number">25.4</span> <span class="operator">/</span> dpi);
<span class="keyword">const</span> <span class="type"><a href="qstringlist.html">QStringList</a></span> args <span class="operator">=</span> displaySpec<span class="operator">.</span>split(QLatin1Char(<span class="char">':'</span>)<span class="operator">,</span>
<span class="type"><a href="qstring.html">QString</a></span><span class="operator">::</span>SkipEmptyParts);
grayscale <span class="operator">=</span> args<span class="operator">.</span>contains(QLatin1String(<span class="string">"grayscale"</span>)<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>CaseInsensitive);
<span class="keyword">return</span> <span class="keyword">true</span>;
}
<span class="type">void</span> SvgalibScreen<span class="operator">::</span>initColorMap()
{
<span class="keyword">const</span> <span class="type">int</span> numColors <span class="operator">=</span> vga_getcolors();
<span class="keyword">if</span> (numColors <span class="operator">=</span><span class="operator">=</span> <span class="number">2</span> <span class="operator">|</span><span class="operator">|</span> numColors <span class="operator">></span> <span class="number">256</span>) {
screencols <span class="operator">=</span> <span class="number">0</span>;
<span class="keyword">return</span>; <span class="comment">// not a palette based mode</span>
}
<span class="keyword">if</span> (numColors <span class="operator">=</span><span class="operator">=</span> <span class="number">16</span>) {
<span class="keyword">if</span> (grayscale) {
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> <span class="number">256</span>; <span class="operator">+</span><span class="operator">+</span>i) {
<span class="keyword">const</span> <span class="type">int</span> c <span class="operator">=</span> i <span class="operator">*</span> <span class="number">16</span> <span class="operator">/</span> <span class="number">256</span>;
vga_setpalette(i<span class="operator">,</span> c<span class="operator">,</span> c<span class="operator">,</span> c);
}
screencols <span class="operator">=</span> <span class="number">256</span>; <span class="comment">// XXX: takes advantage of optimization in alloc()</span>
} <span class="keyword">else</span> { <span class="comment">// read in EGA palette</span>
<span class="type">int</span> r<span class="operator">,</span> g<span class="operator">,</span> b;
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> <span class="number">16</span>; <span class="operator">+</span><span class="operator">+</span>i) {
vga_getpalette(i<span class="operator">,</span> <span class="operator">&</span>r<span class="operator">,</span> <span class="operator">&</span>g<span class="operator">,</span> <span class="operator">&</span>b);
screenclut<span class="operator">[</span>i<span class="operator">]</span> <span class="operator">=</span> <a href="qcolor.html#qRgb">qRgb</a>(r<span class="operator">,</span> g<span class="operator">,</span> b);
}
screencols <span class="operator">=</span> <span class="number">16</span>;
}
<span class="keyword">return</span>;
}
Q_ASSERT(numColors <span class="operator">=</span><span class="operator">=</span> <span class="number">256</span>);
<span class="keyword">if</span> (grayscale) {
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> <span class="number">256</span>; <span class="operator">+</span><span class="operator">+</span>i) {
<span class="keyword">const</span> <span class="type">int</span> c <span class="operator">=</span> i <span class="operator">*</span> <span class="number">64</span> <span class="operator">/</span> <span class="number">256</span>;
vga_setpalette(i<span class="operator">,</span> c<span class="operator">,</span> c<span class="operator">,</span> c);
}
} <span class="keyword">else</span> {
<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>;
<span class="preprocessor">#if 0</span>
<span class="comment">// read in EGA palette</span>
<span class="keyword">while</span> (i <span class="operator"><</span> <span class="number">16</span>) {
<span class="type">int</span> r<span class="operator">,</span> g<span class="operator">,</span> b;
vga_getpalette(i<span class="operator">,</span> <span class="operator">&</span>r<span class="operator">,</span> <span class="operator">&</span>g<span class="operator">,</span> <span class="operator">&</span>b);
screenclut<span class="operator">[</span>i<span class="operator">]</span> <span class="operator">=</span> <a href="qcolor.html#qRgb">qRgb</a>(r<span class="operator">,</span> g<span class="operator">,</span> b);
<span class="operator">+</span><span class="operator">+</span>i;
}
screencols <span class="operator">=</span> <span class="number">16</span>;
<span class="preprocessor">#endif</span>
<span class="comment">// 6 * 6 * 6 color cube</span>
<span class="keyword">for</span> (<span class="type">int</span> r <span class="operator">=</span> <span class="number">0</span>; r <span class="operator"><</span> <span class="number">6</span>; <span class="operator">+</span><span class="operator">+</span>r) {
<span class="keyword">for</span> (<span class="type">int</span> g <span class="operator">=</span> <span class="number">0</span>; g <span class="operator"><</span> <span class="number">6</span>; <span class="operator">+</span><span class="operator">+</span>g) {
<span class="keyword">for</span> (<span class="type">int</span> b <span class="operator">=</span> <span class="number">0</span>; b <span class="operator"><</span> <span class="number">6</span>; <span class="operator">+</span><span class="operator">+</span>b) {
vga_setpalette(i<span class="operator">,</span> r <span class="operator">*</span> <span class="number">64</span><span class="operator">/</span><span class="number">6</span><span class="operator">,</span> g <span class="operator">*</span> <span class="number">64</span><span class="operator">/</span><span class="number">6</span><span class="operator">,</span> b <span class="operator">*</span> <span class="number">64</span><span class="operator">/</span><span class="number">6</span>);
screenclut<span class="operator">[</span>i<span class="operator">]</span> <span class="operator">=</span> <a href="qcolor.html#qRgb">qRgb</a>(r <span class="operator">*</span> <span class="number">256</span><span class="operator">/</span><span class="number">6</span><span class="operator">,</span> g <span class="operator">*</span> <span class="number">256</span><span class="operator">/</span><span class="number">6</span><span class="operator">,</span> b <span class="operator">*</span> <span class="number">256</span><span class="operator">/</span><span class="number">6</span>);
<span class="operator">+</span><span class="operator">+</span>i;
}
}
}
screencols <span class="operator">=</span> i;
<span class="keyword">while</span> (i <span class="operator"><</span> <span class="number">256</span>) {
screenclut<span class="operator">[</span>i<span class="operator">]</span> <span class="operator">=</span> <a href="qcolor.html#qRgb">qRgb</a>(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span>);
<span class="operator">+</span><span class="operator">+</span>i;
}
}
}
<span class="type">bool</span> SvgalibScreen<span class="operator">::</span>initDevice()
{
<span class="keyword">if</span> (vga_init() <span class="operator">!</span><span class="operator">=</span> <span class="number">0</span>) {
<a href="qtglobal.html#qCritical">qCritical</a>(<span class="string">"SvgalibScreen::initDevice(): unable to initialize svgalib"</span>);
<span class="keyword">return</span> <span class="keyword">false</span>;
}
<span class="type">int</span> mode <span class="operator">=</span> vga_getdefaultmode();
<span class="keyword">if</span> (vga_setmode(mode) <span class="operator">=</span><span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>) {
<a href="qtglobal.html#qCritical">qCritical</a>(<span class="string">"SvgalibScreen::initialize(): unable to set graphics mode"</span>);
<span class="keyword">return</span> <span class="keyword">false</span>;
}
<span class="keyword">if</span> (gl_setcontextvga(mode) <span class="operator">!</span><span class="operator">=</span> <span class="number">0</span>) {
<a href="qtglobal.html#qCritical">qCritical</a>(<span class="string">"SvgalibScreen::initDevice(): unable to set vga context"</span>);
<span class="keyword">return</span> <span class="keyword">false</span>;
}
context <span class="operator">=</span> gl_allocatecontext();
gl_getcontext(context);
vga_modeinfo <span class="operator">*</span>modeinfo <span class="operator">=</span> vga_getmodeinfo(mode);
<span class="keyword">if</span> (modeinfo<span class="operator">-</span><span class="operator">></span>flags <span class="operator">&</span> IS_LINEAR)
<span class="type"><a href="qscreen.html">QScreen</a></span><span class="operator">::</span>data <span class="operator">=</span> vga_getgraphmem();
initColorMap();
<span class="type"><a href="qscreencursor.html">QScreenCursor</a></span><span class="operator">::</span>initSoftwareCursor();
<span class="keyword">return</span> <span class="keyword">true</span>;
}
<span class="type">void</span> SvgalibScreen<span class="operator">::</span>shutdownDevice()
{
gl_freecontext(context);
vga_setmode(TEXT);
}
<span class="type">void</span> SvgalibScreen<span class="operator">::</span>disconnect()
{
}
<span class="type">void</span> SvgalibScreen<span class="operator">::</span>solidFill(<span class="keyword">const</span> <span class="type"><a href="qcolor.html">QColor</a></span> <span class="operator">&</span>color<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qregion.html">QRegion</a></span> <span class="operator">&</span>reg)
{
<span class="type">int</span> c;
<span class="keyword">if</span> (depth() <span class="operator">=</span><span class="operator">=</span> <span class="number">4</span> <span class="operator">|</span><span class="operator">|</span> depth() <span class="operator">=</span><span class="operator">=</span> <span class="number">8</span>)
c <span class="operator">=</span> alloc(color<span class="operator">.</span>red()<span class="operator">,</span> color<span class="operator">.</span>green()<span class="operator">,</span> color<span class="operator">.</span>blue());
<span class="keyword">else</span>
c <span class="operator">=</span> gl_rgbcolor(color<span class="operator">.</span>red()<span class="operator">,</span> color<span class="operator">.</span>green()<span class="operator">,</span> color<span class="operator">.</span>blue());
<span class="keyword">const</span> <span class="type"><a href="qvector.html">QVector</a></span><span class="operator"><</span><span class="type"><a href="qrect.html">QRect</a></span><span class="operator">></span> rects <span class="operator">=</span> (reg <span class="operator">&</span> region())<span class="operator">.</span>rects();
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> rects<span class="operator">.</span>size(); <span class="operator">+</span><span class="operator">+</span>i) {
<span class="keyword">const</span> <span class="type"><a href="qrect.html">QRect</a></span> r <span class="operator">=</span> rects<span class="operator">.</span>at(i);
gl_fillbox(r<span class="operator">.</span>left()<span class="operator">,</span> r<span class="operator">.</span>top()<span class="operator">,</span> r<span class="operator">.</span>width()<span class="operator">,</span> r<span class="operator">.</span>height()<span class="operator">,</span> c);
}
}
<span class="type">void</span> SvgalibScreen<span class="operator">::</span>blit16To8(<span class="keyword">const</span> <span class="type"><a href="qimage.html">QImage</a></span> <span class="operator">&</span>image<span class="operator">,</span>
<span class="keyword">const</span> <span class="type"><a href="qpoint.html">QPoint</a></span> <span class="operator">&</span>topLeft<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qregion.html">QRegion</a></span> <span class="operator">&</span>region)
{
<span class="keyword">const</span> <span class="type">int</span> imageStride <span class="operator">=</span> image<span class="operator">.</span>bytesPerLine() <span class="operator">/</span> <span class="number">2</span>;
<span class="keyword">const</span> <span class="type"><a href="qvector.html">QVector</a></span><span class="operator"><</span><span class="type"><a href="qrect.html">QRect</a></span><span class="operator">></span> rects <span class="operator">=</span> region<span class="operator">.</span>rects();
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> rects<span class="operator">.</span>size(); <span class="operator">+</span><span class="operator">+</span>i) {
<span class="keyword">const</span> <span class="type"><a href="qrect.html">QRect</a></span> r <span class="operator">=</span> rects<span class="operator">.</span>at(i)<span class="operator">.</span>translated(<span class="operator">-</span>topLeft);
<span class="type">int</span> y <span class="operator">=</span> r<span class="operator">.</span>y();
<span class="keyword">const</span> <span class="type"><a href="qtglobal.html#quint16-typedef">quint16</a></span> <span class="operator">*</span>s <span class="operator">=</span> <span class="keyword">reinterpret_cast</span><span class="operator"><</span><span class="keyword">const</span> <span class="type"><a href="qtglobal.html#quint16-typedef">quint16</a></span><span class="operator">*</span><span class="operator">></span>(image<span class="operator">.</span>scanLine(y));
<span class="keyword">while</span> (y <span class="operator"><</span><span class="operator">=</span> r<span class="operator">.</span>bottom()) {
<span class="type">int</span> x1 <span class="operator">=</span> r<span class="operator">.</span>x();
<span class="keyword">while</span> (x1 <span class="operator"><</span><span class="operator">=</span> r<span class="operator">.</span>right()) {
<span class="keyword">const</span> <span class="type"><a href="qtglobal.html#quint16-typedef">quint16</a></span> c <span class="operator">=</span> s<span class="operator">[</span>x1<span class="operator">]</span>;
<span class="type">int</span> x2 <span class="operator">=</span> x1;
<span class="comment">// find span length</span>
<span class="keyword">while</span> ((x2<span class="operator">+</span><span class="number">1</span> <span class="operator"><</span> r<span class="operator">.</span>right()) <span class="operator">&</span><span class="operator">&</span> (s<span class="operator">[</span>x2<span class="operator">+</span><span class="number">1</span><span class="operator">]</span> <span class="operator">=</span><span class="operator">=</span> c))
<span class="operator">+</span><span class="operator">+</span>x2;
gl_hline(x1 <span class="operator">+</span> topLeft<span class="operator">.</span>x()<span class="operator">,</span> y <span class="operator">+</span> topLeft<span class="operator">.</span>y()<span class="operator">,</span> x2 <span class="operator">+</span> topLeft<span class="operator">.</span>x()<span class="operator">,</span>
qt_colorConvert<span class="operator"><</span><span class="type"><a href="qtglobal.html#quint8-typedef">quint8</a></span><span class="operator">,</span> <span class="type"><a href="qtglobal.html#quint16-typedef">quint16</a></span><span class="operator">></span>(c<span class="operator">,</span> <span class="number">0</span>));
x1 <span class="operator">=</span> x2 <span class="operator">+</span> <span class="number">1</span>;
}
s <span class="operator">+</span><span class="operator">=</span> imageStride;
<span class="operator">+</span><span class="operator">+</span>y;
}
}
}
<span class="type">void</span> SvgalibScreen<span class="operator">::</span>blit32To8(<span class="keyword">const</span> <span class="type"><a href="qimage.html">QImage</a></span> <span class="operator">&</span>image<span class="operator">,</span>
<span class="keyword">const</span> <span class="type"><a href="qpoint.html">QPoint</a></span> <span class="operator">&</span>topLeft<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qregion.html">QRegion</a></span> <span class="operator">&</span>region)
{
<span class="keyword">const</span> <span class="type">int</span> imageStride <span class="operator">=</span> image<span class="operator">.</span>bytesPerLine() <span class="operator">/</span> <span class="number">4</span>;
<span class="keyword">const</span> <span class="type"><a href="qvector.html">QVector</a></span><span class="operator"><</span><span class="type"><a href="qrect.html">QRect</a></span><span class="operator">></span> rects <span class="operator">=</span> region<span class="operator">.</span>rects();
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> rects<span class="operator">.</span>size(); <span class="operator">+</span><span class="operator">+</span>i) {
<span class="keyword">const</span> <span class="type"><a href="qrect.html">QRect</a></span> r <span class="operator">=</span> rects<span class="operator">.</span>at(i)<span class="operator">.</span>translated(<span class="operator">-</span>topLeft);
<span class="type">int</span> y <span class="operator">=</span> r<span class="operator">.</span>y();
<span class="keyword">const</span> <span class="type"><a href="qtglobal.html#quint32-typedef">quint32</a></span> <span class="operator">*</span>s <span class="operator">=</span> <span class="keyword">reinterpret_cast</span><span class="operator"><</span><span class="keyword">const</span> <span class="type"><a href="qtglobal.html#quint32-typedef">quint32</a></span><span class="operator">*</span><span class="operator">></span>(image<span class="operator">.</span>scanLine(y));
<span class="keyword">while</span> (y <span class="operator"><</span><span class="operator">=</span> r<span class="operator">.</span>bottom()) {
<span class="type">int</span> x1 <span class="operator">=</span> r<span class="operator">.</span>x();
<span class="keyword">while</span> (x1 <span class="operator"><</span><span class="operator">=</span> r<span class="operator">.</span>right()) {
<span class="keyword">const</span> <span class="type"><a href="qtglobal.html#quint32-typedef">quint32</a></span> c <span class="operator">=</span> s<span class="operator">[</span>x1<span class="operator">]</span>;
<span class="type">int</span> x2 <span class="operator">=</span> x1;
<span class="comment">// find span length</span>
<span class="keyword">while</span> ((x2<span class="operator">+</span><span class="number">1</span> <span class="operator"><</span> r<span class="operator">.</span>right()) <span class="operator">&</span><span class="operator">&</span> (s<span class="operator">[</span>x2<span class="operator">+</span><span class="number">1</span><span class="operator">]</span> <span class="operator">=</span><span class="operator">=</span> c))
<span class="operator">+</span><span class="operator">+</span>x2;
gl_hline(x1 <span class="operator">+</span> topLeft<span class="operator">.</span>x()<span class="operator">,</span> y <span class="operator">+</span> topLeft<span class="operator">.</span>y()<span class="operator">,</span> x2 <span class="operator">+</span> topLeft<span class="operator">.</span>x()<span class="operator">,</span>
qt_colorConvert<span class="operator"><</span><span class="type"><a href="qtglobal.html#quint8-typedef">quint8</a></span><span class="operator">,</span> <span class="type"><a href="qtglobal.html#quint32-typedef">quint32</a></span><span class="operator">></span>(c<span class="operator">,</span> <span class="number">0</span>));
x1 <span class="operator">=</span> x2 <span class="operator">+</span> <span class="number">1</span>;
}
s <span class="operator">+</span><span class="operator">=</span> imageStride;
<span class="operator">+</span><span class="operator">+</span>y;
}
}
}
<span class="type">void</span> SvgalibScreen<span class="operator">::</span>blit(<span class="keyword">const</span> <span class="type"><a href="qimage.html">QImage</a></span> <span class="operator">&</span>img<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qpoint.html">QPoint</a></span> <span class="operator">&</span>topLeft<span class="operator">,</span>
<span class="keyword">const</span> <span class="type"><a href="qregion.html">QRegion</a></span> <span class="operator">&</span>reg)
{
<span class="keyword">if</span> (depth() <span class="operator">=</span><span class="operator">=</span> <span class="number">8</span>) {
<span class="keyword">switch</span> (img<span class="operator">.</span>format()) {
<span class="keyword">case</span> <span class="type"><a href="qimage.html">QImage</a></span><span class="operator">::</span>Format_RGB16:
blit16To8(img<span class="operator">,</span> topLeft<span class="operator">,</span> reg);
<span class="keyword">return</span>;
<span class="keyword">case</span> <span class="type"><a href="qimage.html">QImage</a></span><span class="operator">::</span>Format_RGB32:
<span class="keyword">case</span> <span class="type"><a href="qimage.html">QImage</a></span><span class="operator">::</span>Format_ARGB32:
<span class="keyword">case</span> <span class="type"><a href="qimage.html">QImage</a></span><span class="operator">::</span>Format_ARGB32_Premultiplied:
blit32To8(img<span class="operator">,</span> topLeft<span class="operator">,</span> reg);
<span class="keyword">return</span>;
<span class="keyword">default</span>:
<span class="keyword">break</span>;
}
}
<span class="keyword">if</span> (img<span class="operator">.</span>format() <span class="operator">!</span><span class="operator">=</span> pixelFormat()) {
<span class="keyword">if</span> (base())
<span class="type"><a href="qscreen.html">QScreen</a></span><span class="operator">::</span>blit(img<span class="operator">,</span> topLeft<span class="operator">,</span> reg);
<span class="keyword">return</span>;
}
<span class="keyword">const</span> <span class="type"><a href="qvector.html">QVector</a></span><span class="operator"><</span><span class="type"><a href="qrect.html">QRect</a></span><span class="operator">></span> rects <span class="operator">=</span> (reg <span class="operator">&</span> region())<span class="operator">.</span>rects();
<span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> rects<span class="operator">.</span>size(); <span class="operator">+</span><span class="operator">+</span>i) {
<span class="keyword">const</span> <span class="type"><a href="qrect.html">QRect</a></span> r <span class="operator">=</span> rects<span class="operator">.</span>at(i);
gl_putboxpart(r<span class="operator">.</span>x()<span class="operator">,</span> r<span class="operator">.</span>y()<span class="operator">,</span> r<span class="operator">.</span>width()<span class="operator">,</span> r<span class="operator">.</span>height()<span class="operator">,</span>
img<span class="operator">.</span>width()<span class="operator">,</span> img<span class="operator">.</span>height()<span class="operator">,</span>
<span class="keyword">static_cast</span><span class="operator"><</span><span class="type">void</span><span class="operator">*</span><span class="operator">></span>(<span class="keyword">const_cast</span><span class="operator"><</span><span class="type"><a href="qtglobal.html#uchar-typedef">uchar</a></span><span class="operator">*</span><span class="operator">></span>(img<span class="operator">.</span>bits()))<span class="operator">,</span>
r<span class="operator">.</span>x() <span class="operator">-</span> topLeft<span class="operator">.</span>x()<span class="operator">,</span> r<span class="operator">.</span>y() <span class="operator">-</span> topLeft<span class="operator">.</span>y());
}
}
<span class="type">QWSWindowSurface</span><span class="operator">*</span> SvgalibScreen<span class="operator">::</span>createSurface(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>widget) <span class="keyword">const</span>
{
<span class="keyword">if</span> (base()) {
<span class="keyword">static</span> <span class="type">int</span> onScreenPaint <span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>;
<span class="keyword">if</span> (onScreenPaint <span class="operator">=</span><span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>)
onScreenPaint <span class="operator">=</span> qgetenv(<span class="string">"QT_ONSCREEN_PAINT"</span>)<span class="operator">.</span>toInt();
<span class="keyword">if</span> (onScreenPaint <span class="operator">></span> <span class="number">0</span> <span class="operator">|</span><span class="operator">|</span> widget<span class="operator">-</span><span class="operator">></span>testAttribute(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>WA_PaintOnScreen))
<span class="keyword">return</span> <span class="keyword">new</span> SvgalibSurface(widget);
}
<span class="keyword">return</span> <span class="type"><a href="qscreen.html">QScreen</a></span><span class="operator">::</span>createSurface(widget);
}
<span class="type">QWSWindowSurface</span><span class="operator">*</span> SvgalibScreen<span class="operator">::</span>createSurface(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>key) <span class="keyword">const</span>
{
<span class="keyword">if</span> (key <span class="operator">=</span><span class="operator">=</span> QLatin1String(<span class="string">"svgalib"</span>))
<span class="keyword">return</span> <span class="keyword">new</span> SvgalibSurface;
<span class="keyword">return</span> <span class="type"><a href="qscreen.html">QScreen</a></span><span class="operator">::</span>createSurface(key);
}</pre>
</div>
<!-- @@@qws/svgalib/svgalibscreen.cpp -->
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