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<div class="title">xcf.cpp</div> </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment"> * qxcfi.cpp: A Qt 3 plug-in for reading GIMP XCF image files</span>
<a name="l00003"></a>00003 <span class="comment"> * Copyright (C) 2001 lignum Computing, Inc. <allen@lignumcomputing.com></span>
<a name="l00004"></a>00004 <span class="comment"> * Copyright (C) 2004 Melchior FRANZ <mfranz@kde.org></span>
<a name="l00005"></a>00005 <span class="comment"> *</span>
<a name="l00006"></a>00006 <span class="comment"> * This plug-in is free software; you can redistribute it and/or</span>
<a name="l00007"></a>00007 <span class="comment"> * modify it under the terms of the GNU Lesser General Public</span>
<a name="l00008"></a>00008 <span class="comment"> * License as published by the Free Software Foundation; either</span>
<a name="l00009"></a>00009 <span class="comment"> * version 2.1 of the License, or (at your option) any later version.</span>
<a name="l00010"></a>00010 <span class="comment"> *</span>
<a name="l00011"></a>00011 <span class="comment"> * This library is distributed in the hope that it will be useful,</span>
<a name="l00012"></a>00012 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00013"></a>00013 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00014"></a>00014 <span class="comment"> * Lesser General Public License for more details.</span>
<a name="l00015"></a>00015 <span class="comment"> *</span>
<a name="l00016"></a>00016 <span class="comment"> * You should have received a copy of the GNU Lesser General Public</span>
<a name="l00017"></a>00017 <span class="comment"> * License along with this library; if not, write to the Free Software</span>
<a name="l00018"></a>00018 <span class="comment"> * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA</span>
<a name="l00019"></a>00019 <span class="comment"> *</span>
<a name="l00020"></a>00020 <span class="comment"> */</span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022 <span class="preprocessor">#include <stdlib.h></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include <qimage.h></span>
<a name="l00024"></a>00024 <span class="preprocessor">#include <qiodevice.h></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include <qvaluestack.h></span>
<a name="l00026"></a>00026 <span class="preprocessor">#include <qvaluevector.h></span>
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="preprocessor">#include <kdebug.h></span>
<a name="l00029"></a>00029 <span class="preprocessor">#include "xcf.h"</span>
<a name="l00030"></a>00030
<a name="l00031"></a>00031
<a name="l00033"></a>00033
<a name="l00034"></a>00034
<a name="l00035"></a>00035 KDE_EXPORT <span class="keywordtype">void</span> kimgio_xcf_read(<a class="codeRef" href="qimageio.html">QImageIO</a> *io)
<a name="l00036"></a>00036 {
<a name="l00037"></a>00037 XCFImageFormat xcfif;
<a name="l00038"></a>00038 xcfif.readXCF(io);
<a name="l00039"></a>00039 }
<a name="l00040"></a>00040
<a name="l00041"></a>00041
<a name="l00042"></a>00042 KDE_EXPORT <span class="keywordtype">void</span> kimgio_xcf_write(<a class="codeRef" href="qimageio.html">QImageIO</a> *io)
<a name="l00043"></a>00043 {
<a name="l00044"></a>00044 kdDebug(399) << <span class="stringliteral">"XCF: write support not implemented"</span> << endl;
<a name="l00045"></a>00045 io-><a class="codeRef" href="qimageio.html#setStatus">setStatus</a>(-1);
<a name="l00046"></a>00046 }
<a name="l00047"></a>00047
<a name="l00049"></a>00049
<a name="l00050"></a>00050
<a name="l00051"></a>00051
<a name="l00052"></a>00052 <span class="keywordtype">int</span> XCFImageFormat::random_table[RANDOM_TABLE_SIZE];
<a name="l00053"></a>00053
<a name="l00054"></a>00054 <span class="comment">//int XCFImageFormat::add_lut[256][256];</span>
<a name="l00055"></a>00055
<a name="l00056"></a>00056
<a name="l00057"></a>00057 <span class="keyword">const</span> XCFImageFormat::LayerModes XCFImageFormat::layer_modes[] = {
<a name="l00058"></a>00058 {<span class="keyword">true</span>}, <span class="comment">// NORMAL_MODE</span>
<a name="l00059"></a>00059 {<span class="keyword">true</span>}, <span class="comment">// DISSOLVE_MODE</span>
<a name="l00060"></a>00060 {<span class="keyword">true</span>}, <span class="comment">// BEHIND_MODE</span>
<a name="l00061"></a>00061 {<span class="keyword">false</span>}, <span class="comment">// MULTIPLY_MODE</span>
<a name="l00062"></a>00062 {<span class="keyword">false</span>}, <span class="comment">// SCREEN_MODE</span>
<a name="l00063"></a>00063 {<span class="keyword">false</span>}, <span class="comment">// OVERLAY_MODE</span>
<a name="l00064"></a>00064 {<span class="keyword">false</span>}, <span class="comment">// DIFFERENCE_MODE</span>
<a name="l00065"></a>00065 {<span class="keyword">false</span>}, <span class="comment">// ADDITION_MODE</span>
<a name="l00066"></a>00066 {<span class="keyword">false</span>}, <span class="comment">// SUBTRACT_MODE</span>
<a name="l00067"></a>00067 {<span class="keyword">false</span>}, <span class="comment">// DARKEN_ONLY_MODE</span>
<a name="l00068"></a>00068 {<span class="keyword">false</span>}, <span class="comment">// LIGHTEN_ONLY_MODE</span>
<a name="l00069"></a>00069 {<span class="keyword">false</span>}, <span class="comment">// HUE_MODE</span>
<a name="l00070"></a>00070 {<span class="keyword">false</span>}, <span class="comment">// SATURATION_MODE</span>
<a name="l00071"></a>00071 {<span class="keyword">false</span>}, <span class="comment">// COLOR_MODE</span>
<a name="l00072"></a>00072 {<span class="keyword">false</span>}, <span class="comment">// VALUE_MODE</span>
<a name="l00073"></a>00073 {<span class="keyword">false</span>}, <span class="comment">// DIVIDE_MODE</span>
<a name="l00074"></a>00074 {<span class="keyword">true</span>}, <span class="comment">// ERASE_MODE</span>
<a name="l00075"></a>00075 {<span class="keyword">true</span>}, <span class="comment">// REPLACE_MODE</span>
<a name="l00076"></a>00076 {<span class="keyword">true</span>}, <span class="comment">// ANTI_ERASE_MODE</span>
<a name="l00077"></a>00077 };
<a name="l00078"></a>00078
<a name="l00079"></a>00079
<a name="l00081"></a>00081 <span class="keyword">inline</span> QRgb qRgba ( QRgb rgb, <span class="keywordtype">int</span> a )
<a name="l00082"></a>00082 {
<a name="l00083"></a>00083 <span class="keywordflow">return</span> ((a & 0xff) << 24 | (rgb & RGB_MASK));
<a name="l00084"></a>00084 }
<a name="l00085"></a>00085
<a name="l00086"></a>00086
<a name="l00091"></a>00091 XCFImageFormat::XCFImageFormat()
<a name="l00092"></a>00092 {
<a name="l00093"></a>00093 <span class="comment">// From GIMP "paint_funcs.c" v1.2</span>
<a name="l00094"></a>00094 srand(RANDOM_SEED);
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < RANDOM_TABLE_SIZE; i++)
<a name="l00097"></a>00097 random_table[i] = rand();
<a name="l00098"></a>00098
<a name="l00099"></a>00099 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < RANDOM_TABLE_SIZE; i++) {
<a name="l00100"></a>00100 <span class="keywordtype">int</span> tmp;
<a name="l00101"></a>00101 <span class="keywordtype">int</span> swap = i + rand() % (RANDOM_TABLE_SIZE - i);
<a name="l00102"></a>00102 tmp = random_table[i];
<a name="l00103"></a>00103 random_table[i] = random_table[swap];
<a name="l00104"></a>00104 random_table[swap] = tmp;
<a name="l00105"></a>00105 }
<a name="l00106"></a>00106
<a name="l00107"></a>00107 <span class="comment">// for (int j = 0; j < 256; j++) {</span>
<a name="l00108"></a>00108 <span class="comment">// for (int k = 0; k < 256; k++) {</span>
<a name="l00109"></a>00109 <span class="comment">// int tmp_sum = j + k;</span>
<a name="l00110"></a>00110 <span class="comment">// if (tmp_sum > 255)</span>
<a name="l00111"></a>00111 <span class="comment">// tmp_sum = 255;</span>
<a name="l00112"></a>00112 <span class="comment">// add_lut[j][k] = tmp_sum;</span>
<a name="l00113"></a>00113 <span class="comment">// }</span>
<a name="l00114"></a>00114 <span class="comment">// }</span>
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116
<a name="l00117"></a>00117 <span class="keyword">inline</span>
<a name="l00118"></a>00118 <span class="keywordtype">int</span> XCFImageFormat::add_lut( <span class="keywordtype">int</span> a, <span class="keywordtype">int</span> b ) {
<a name="l00119"></a>00119 <span class="keywordflow">return</span> QMIN( a + b, 255 );
<a name="l00120"></a>00120 }
<a name="l00121"></a>00121
<a name="l00122"></a>00122 <span class="keywordtype">void</span> XCFImageFormat::readXCF(<a class="codeRef" href="qimageio.html">QImageIO</a> *io)
<a name="l00123"></a>00123 {
<a name="l00124"></a>00124 XCFImage xcf_image;
<a name="l00125"></a>00125 <a class="codeRef" href="qdatastream.html">QDataStream</a> xcf_io(io-><a class="codeRef" href="qimageio.html#ioDevice">ioDevice</a>());
<a name="l00126"></a>00126
<a name="l00127"></a>00127 <span class="keywordtype">char</span> tag[14];
<a name="l00128"></a>00128 xcf_io.<a class="codeRef" href="qdatastream.html#readRawBytes">readRawBytes</a>(tag, <span class="keyword">sizeof</span>(tag));
<a name="l00129"></a>00129
<a name="l00130"></a>00130 <span class="keywordflow">if</span> (xcf_io.device()->status() != IO_Ok) {
<a name="l00131"></a>00131 kdDebug(399) << <span class="stringliteral">"XCF: read failure on header tag"</span> << endl;
<a name="l00132"></a>00132 <span class="keywordflow">return</span>;
<a name="l00133"></a>00133 }
<a name="l00134"></a>00134
<a name="l00135"></a>00135 xcf_io >> xcf_image.width >> xcf_image.height >> xcf_image.type;
<a name="l00136"></a>00136
<a name="l00137"></a>00137 <span class="keywordflow">if</span> (xcf_io.device()->status() != IO_Ok) {
<a name="l00138"></a>00138 kdDebug(399) << <span class="stringliteral">"XCF: read failure on image info"</span> << endl;
<a name="l00139"></a>00139 <span class="keywordflow">return</span>;
<a name="l00140"></a>00140 }
<a name="l00141"></a>00141
<a name="l00142"></a>00142 kdDebug() << tag << <span class="stringliteral">" "</span> << xcf_image.width << <span class="stringliteral">" "</span> << xcf_image.height << <span class="stringliteral">" "</span> << xcf_image.type << endl;
<a name="l00143"></a>00143 <span class="keywordflow">if</span> (!loadImageProperties(xcf_io, xcf_image))
<a name="l00144"></a>00144 <span class="keywordflow">return</span>;
<a name="l00145"></a>00145
<a name="l00146"></a>00146 <span class="comment">// The layers appear to be stored in top-to-bottom order. This is</span>
<a name="l00147"></a>00147 <span class="comment">// the reverse of how a merged image must be computed. So, the layer</span>
<a name="l00148"></a>00148 <span class="comment">// offsets are pushed onto a LIFO stack (thus, we don't have to load</span>
<a name="l00149"></a>00149 <span class="comment">// all the data of all layers before beginning to construct the</span>
<a name="l00150"></a>00150 <span class="comment">// merged image).</span>
<a name="l00151"></a>00151
<a name="l00152"></a>00152 <a class="codeRef" href="qvaluestack.html">QValueStack<Q_INT32></a> layer_offsets;
<a name="l00153"></a>00153
<a name="l00154"></a>00154 <span class="keywordflow">while</span> (<span class="keyword">true</span>) {
<a name="l00155"></a>00155 Q_INT32 layer_offset;
<a name="l00156"></a>00156
<a name="l00157"></a>00157 xcf_io >> layer_offset;
<a name="l00158"></a>00158
<a name="l00159"></a>00159 <span class="keywordflow">if</span> (xcf_io.device()->status() != IO_Ok) {
<a name="l00160"></a>00160 kdDebug(399) << <span class="stringliteral">"XCF: read failure on layer offsets"</span> << endl;
<a name="l00161"></a>00161 <span class="keywordflow">return</span>;
<a name="l00162"></a>00162 }
<a name="l00163"></a>00163
<a name="l00164"></a>00164 <span class="keywordflow">if</span> (layer_offset == 0)
<a name="l00165"></a>00165 <span class="keywordflow">break</span>;
<a name="l00166"></a>00166
<a name="l00167"></a>00167 layer_offsets.<a class="codeRef" href="qvaluestack.html#push">push</a>(layer_offset);
<a name="l00168"></a>00168 }
<a name="l00169"></a>00169
<a name="l00170"></a>00170 xcf_image.num_layers = layer_offsets.size();
<a name="l00171"></a>00171
<a name="l00172"></a>00172 <span class="keywordflow">if</span> (layer_offsets.size() == 0) {
<a name="l00173"></a>00173 kdDebug(399) << <span class="stringliteral">"XCF: no layers!"</span> << endl;
<a name="l00174"></a>00174 <span class="keywordflow">return</span>;
<a name="l00175"></a>00175 }
<a name="l00176"></a>00176
<a name="l00177"></a>00177 <span class="comment">// Load each layer and add it to the image</span>
<a name="l00178"></a>00178 <span class="keywordflow">while</span> (!layer_offsets.isEmpty()) {
<a name="l00179"></a>00179 Q_INT32 layer_offset = layer_offsets.<a class="codeRef" href="qvaluestack.html#pop">pop</a>();
<a name="l00180"></a>00180
<a name="l00181"></a>00181 xcf_io.device()->at(layer_offset);
<a name="l00182"></a>00182
<a name="l00183"></a>00183 <span class="keywordflow">if</span> (!loadLayer(xcf_io, xcf_image))
<a name="l00184"></a>00184 <span class="keywordflow">return</span>;
<a name="l00185"></a>00185 }
<a name="l00186"></a>00186
<a name="l00187"></a>00187 <span class="keywordflow">if</span> (!xcf_image.initialized) {
<a name="l00188"></a>00188 kdDebug(399) << <span class="stringliteral">"XCF: no visible layers!"</span> << endl;
<a name="l00189"></a>00189 <span class="keywordflow">return</span>;
<a name="l00190"></a>00190 }
<a name="l00191"></a>00191
<a name="l00192"></a>00192 io-><a class="codeRef" href="qimageio.html#setImage">setImage</a>(xcf_image.image);
<a name="l00193"></a>00193 io-><a class="codeRef" href="qimageio.html#setStatus">setStatus</a>(0);
<a name="l00194"></a>00194 }
<a name="l00195"></a>00195
<a name="l00196"></a>00196
<a name="l00204"></a>00204 <span class="keywordtype">bool</span> XCFImageFormat::loadImageProperties(<a class="codeRef" href="qdatastream.html">QDataStream</a>& xcf_io, XCFImage& xcf_image)
<a name="l00205"></a>00205 {
<a name="l00206"></a>00206 <span class="keywordflow">while</span> (<span class="keyword">true</span>) {
<a name="l00207"></a>00207 PropType type;
<a name="l00208"></a>00208 <a class="codeRef" href="qbytearray.html">QByteArray</a> bytes;
<a name="l00209"></a>00209
<a name="l00210"></a>00210 <span class="keywordflow">if</span> (!loadProperty(xcf_io, type, bytes)) {
<a name="l00211"></a>00211 kdDebug(399) << <span class="stringliteral">"XCF: error loading global image properties"</span> << endl;
<a name="l00212"></a>00212 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00213"></a>00213 }
<a name="l00214"></a>00214
<a name="l00215"></a>00215 <a class="codeRef" href="qdatastream.html">QDataStream</a> property(bytes, IO_ReadOnly);
<a name="l00216"></a>00216
<a name="l00217"></a>00217 <span class="keywordflow">switch</span> (type) {
<a name="l00218"></a>00218 <span class="keywordflow">case</span> PROP_END:
<a name="l00219"></a>00219 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00220"></a>00220
<a name="l00221"></a>00221 <span class="keywordflow">case</span> PROP_COMPRESSION:
<a name="l00222"></a>00222 <span class="keyword">property</span> >> xcf_image.compression;
<a name="l00223"></a>00223 <span class="keywordflow">break</span>;
<a name="l00224"></a>00224
<a name="l00225"></a>00225 <span class="keywordflow">case</span> PROP_RESOLUTION:
<a name="l00226"></a>00226 <span class="keyword">property</span> >> xcf_image.x_resolution >> xcf_image.y_resolution;
<a name="l00227"></a>00227 <span class="keywordflow">break</span>;
<a name="l00228"></a>00228
<a name="l00229"></a>00229 <span class="keywordflow">case</span> PROP_TATTOO:
<a name="l00230"></a>00230 <span class="keyword">property</span> >> xcf_image.tattoo;
<a name="l00231"></a>00231 <span class="keywordflow">break</span>;
<a name="l00232"></a>00232
<a name="l00233"></a>00233 <span class="keywordflow">case</span> PROP_PARASITES:
<a name="l00234"></a>00234 <span class="keywordflow">while</span> (!property.atEnd()) {
<a name="l00235"></a>00235 <span class="keywordtype">char</span>* tag;
<a name="l00236"></a>00236 Q_UINT32 size;
<a name="l00237"></a>00237
<a name="l00238"></a>00238 <span class="keyword">property</span>.readBytes(tag, size);
<a name="l00239"></a>00239
<a name="l00240"></a>00240 Q_UINT32 flags;
<a name="l00241"></a>00241 <span class="keywordtype">char</span>* data=0;
<a name="l00242"></a>00242 <span class="keyword">property</span> >> flags >> data;
<a name="l00243"></a>00243
<a name="l00244"></a>00244 <span class="keywordflow">if</span> (tag && strncmp(tag, <span class="stringliteral">"gimp-comment"</span>, strlen(<span class="stringliteral">"gimp-comment"</span>)) == 0)
<a name="l00245"></a>00245 xcf_image.image.setText(<span class="stringliteral">"Comment"</span>, 0, data);
<a name="l00246"></a>00246
<a name="l00247"></a>00247 <span class="keyword">delete</span>[] tag;
<a name="l00248"></a>00248 <span class="keyword">delete</span>[] data;
<a name="l00249"></a>00249 }
<a name="l00250"></a>00250 <span class="keywordflow">break</span>;
<a name="l00251"></a>00251
<a name="l00252"></a>00252 <span class="keywordflow">case</span> PROP_UNIT:
<a name="l00253"></a>00253 <span class="keyword">property</span> >> xcf_image.unit;
<a name="l00254"></a>00254 <span class="keywordflow">break</span>;
<a name="l00255"></a>00255
<a name="l00256"></a>00256 <span class="keywordflow">case</span> PROP_PATHS: <span class="comment">// This property is ignored.</span>
<a name="l00257"></a>00257 <span class="keywordflow">break</span>;
<a name="l00258"></a>00258
<a name="l00259"></a>00259 <span class="keywordflow">case</span> PROP_USER_UNIT: <span class="comment">// This property is ignored.</span>
<a name="l00260"></a>00260 <span class="keywordflow">break</span>;
<a name="l00261"></a>00261
<a name="l00262"></a>00262 <span class="keywordflow">case</span> PROP_COLORMAP:
<a name="l00263"></a>00263 <span class="keyword">property</span> >> xcf_image.num_colors;
<a name="l00264"></a>00264 <span class="keywordflow">if</span>(xcf_image.num_colors < 0 || xcf_image.num_colors > 65535)
<a name="l00265"></a>00265 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00266"></a>00266
<a name="l00267"></a>00267 xcf_image.palette.reserve(xcf_image.num_colors);
<a name="l00268"></a>00268
<a name="l00269"></a>00269 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < xcf_image.num_colors; i++) {
<a name="l00270"></a>00270 uchar r, g, b;
<a name="l00271"></a>00271 <span class="keyword">property</span> >> r >> g >> b;
<a name="l00272"></a>00272 xcf_image.palette.push_back( qRgb(r,g,b) );
<a name="l00273"></a>00273 }
<a name="l00274"></a>00274 <span class="keywordflow">break</span>;
<a name="l00275"></a>00275
<a name="l00276"></a>00276 <span class="keywordflow">default</span>:
<a name="l00277"></a>00277 kdDebug(399) << <span class="stringliteral">"XCF: unimplemented image property"</span> << type
<a name="l00278"></a>00278 << <span class="stringliteral">", size "</span> << bytes.size() << endl;
<a name="l00279"></a>00279 }
<a name="l00280"></a>00280 }
<a name="l00281"></a>00281 }
<a name="l00282"></a>00282
<a name="l00283"></a>00283
<a name="l00291"></a>00291 <span class="keywordtype">bool</span> XCFImageFormat::loadProperty(<a class="codeRef" href="qdatastream.html">QDataStream</a>& xcf_io, PropType& type, <a class="codeRef" href="qbytearray.html">QByteArray</a>& bytes)
<a name="l00292"></a>00292 {
<a name="l00293"></a>00293 Q_UINT32 foo;
<a name="l00294"></a>00294 xcf_io >> foo;
<a name="l00295"></a>00295 type=PropType(foo); <span class="comment">// TODO urks</span>
<a name="l00296"></a>00296
<a name="l00297"></a>00297 <span class="keywordflow">if</span> (xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->status() != IO_Ok) {
<a name="l00298"></a>00298 kdDebug(399) << <span class="stringliteral">"XCF: read failure on property type"</span> << type << endl;
<a name="l00299"></a>00299 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00300"></a>00300 }
<a name="l00301"></a>00301
<a name="l00302"></a>00302 <span class="keywordtype">char</span>* data;
<a name="l00303"></a>00303 Q_UINT32 size;
<a name="l00304"></a>00304
<a name="l00305"></a>00305 <span class="comment">// The colormap property size is not the correct number of bytes:</span>
<a name="l00306"></a>00306 <span class="comment">// The GIMP source xcf.c has size = 4 + ncolors, but it should be</span>
<a name="l00307"></a>00307 <span class="comment">// 4 + 3 * ncolors</span>
<a name="l00308"></a>00308
<a name="l00309"></a>00309 <span class="keywordflow">if</span> (type == PROP_COLORMAP) {
<a name="l00310"></a>00310 xcf_io >> size;
<a name="l00311"></a>00311
<a name="l00312"></a>00312 <span class="keywordflow">if</span> (xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->status() != IO_Ok) {
<a name="l00313"></a>00313 kdDebug(399) << <span class="stringliteral">"XCF: read failure on property "</span> << type << <span class="stringliteral">" size"</span> << endl;
<a name="l00314"></a>00314 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00315"></a>00315 }
<a name="l00316"></a>00316
<a name="l00317"></a>00317 <span class="keywordflow">if</span>(size > 65535 || size < 4)
<a name="l00318"></a>00318 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00319"></a>00319
<a name="l00320"></a>00320 size = 3 * (size - 4) + 4;
<a name="l00321"></a>00321 data = <span class="keyword">new</span> <span class="keywordtype">char</span>[size];
<a name="l00322"></a>00322
<a name="l00323"></a>00323 xcf_io.<a class="codeRef" href="qdatastream.html#readRawBytes">readRawBytes</a>(data, size);
<a name="l00324"></a>00324 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (type == PROP_USER_UNIT) {
<a name="l00325"></a>00325 <span class="comment">// The USER UNIT property size is not correct. I'm not sure why, though.</span>
<a name="l00326"></a>00326 <span class="keywordtype">float</span> factor;
<a name="l00327"></a>00327 Q_INT32 digits;
<a name="l00328"></a>00328 <span class="keywordtype">char</span>* unit_strings;
<a name="l00329"></a>00329
<a name="l00330"></a>00330 xcf_io >> size >> factor >> digits;
<a name="l00331"></a>00331
<a name="l00332"></a>00332 <span class="keywordflow">if</span> (xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->status() != IO_Ok) {
<a name="l00333"></a>00333 kdDebug(399) << <span class="stringliteral">"XCF: read failure on property "</span> << type << endl;
<a name="l00334"></a>00334 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00335"></a>00335 }
<a name="l00336"></a>00336
<a name="l00337"></a>00337 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < 5; i++) {
<a name="l00338"></a>00338 xcf_io >> unit_strings;
<a name="l00339"></a>00339
<a name="l00340"></a>00340 <span class="keywordflow">if</span> (xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->status() != IO_Ok) {
<a name="l00341"></a>00341 kdDebug(399) << <span class="stringliteral">"XCF: read failure on property "</span> << type << endl;
<a name="l00342"></a>00342 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00343"></a>00343 }
<a name="l00344"></a>00344
<a name="l00345"></a>00345 <span class="keyword">delete</span>[] unit_strings;
<a name="l00346"></a>00346 }
<a name="l00347"></a>00347
<a name="l00348"></a>00348 size = 0;
<a name="l00349"></a>00349 } <span class="keywordflow">else</span> {
<a name="l00350"></a>00350 xcf_io >> size;
<a name="l00351"></a>00351 <span class="keywordflow">if</span>(size >256000)
<a name="l00352"></a>00352 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00353"></a>00353 data = <span class="keyword">new</span> <span class="keywordtype">char</span>[size];
<a name="l00354"></a>00354 xcf_io.<a class="codeRef" href="qdatastream.html#readRawBytes">readRawBytes</a>(data, size);
<a name="l00355"></a>00355 }
<a name="l00356"></a>00356
<a name="l00357"></a>00357 <span class="keywordflow">if</span> (xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->status() != IO_Ok) {
<a name="l00358"></a>00358 kdDebug(399) << <span class="stringliteral">"XCF: read failure on property "</span> << type << <span class="stringliteral">" data, size "</span> << size << endl;
<a name="l00359"></a>00359 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00360"></a>00360 }
<a name="l00361"></a>00361
<a name="l00362"></a>00362 <span class="keywordflow">if</span> (size != 0 && data) {
<a name="l00363"></a>00363 bytes.assign(data,size);
<a name="l00364"></a>00364 }
<a name="l00365"></a>00365
<a name="l00366"></a>00366 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00367"></a>00367 }
<a name="l00368"></a>00368
<a name="l00369"></a>00369
<a name="l00378"></a>00378 <span class="keywordtype">bool</span> XCFImageFormat::loadLayer(<a class="codeRef" href="qdatastream.html">QDataStream</a>& xcf_io, XCFImage& xcf_image)
<a name="l00379"></a>00379 {
<a name="l00380"></a>00380 Layer& layer(xcf_image.layer);
<a name="l00381"></a>00381 <span class="keyword">delete</span>[] layer.name;
<a name="l00382"></a>00382
<a name="l00383"></a>00383 xcf_io >> layer.width >> layer.height >> layer.type >> layer.name;
<a name="l00384"></a>00384
<a name="l00385"></a>00385 <span class="keywordflow">if</span> (xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->status() != IO_Ok) {
<a name="l00386"></a>00386 kdDebug(399) << <span class="stringliteral">"XCF: read failure on layer"</span> << endl;
<a name="l00387"></a>00387 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00388"></a>00388 }
<a name="l00389"></a>00389
<a name="l00390"></a>00390 <span class="keywordflow">if</span> (!loadLayerProperties(xcf_io, layer))
<a name="l00391"></a>00391 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00392"></a>00392 <span class="preprocessor">#if 0</span>
<a name="l00393"></a>00393 <span class="preprocessor"></span> cout << <span class="stringliteral">"layer: \""</span> << layer.name << <span class="stringliteral">"\", size: "</span> << layer.width << <span class="stringliteral">" x "</span>
<a name="l00394"></a>00394 << layer.height << <span class="stringliteral">", type: "</span> << layer.type << <span class="stringliteral">", mode: "</span> << layer.mode
<a name="l00395"></a>00395 << <span class="stringliteral">", opacity: "</span> << layer.opacity << <span class="stringliteral">", visible: "</span> << layer.visible
<a name="l00396"></a>00396 << <span class="stringliteral">", offset: "</span> << layer.x_offset << <span class="stringliteral">", "</span> << layer.y_offset << endl;
<a name="l00397"></a>00397 <span class="preprocessor">#endif</span>
<a name="l00398"></a>00398 <span class="preprocessor"></span> <span class="comment">// Skip reading the rest of it if it is not visible. Typically, when</span>
<a name="l00399"></a>00399 <span class="comment">// you export an image from the The GIMP it flattens (or merges) only</span>
<a name="l00400"></a>00400 <span class="comment">// the visible layers into the output image.</span>
<a name="l00401"></a>00401
<a name="l00402"></a>00402 <span class="keywordflow">if</span> (layer.visible == 0)
<a name="l00403"></a>00403 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00404"></a>00404
<a name="l00405"></a>00405 <span class="comment">// If there are any more layers, merge them into the final QImage.</span>
<a name="l00406"></a>00406
<a name="l00407"></a>00407 xcf_io >> layer.hierarchy_offset >> layer.mask_offset;
<a name="l00408"></a>00408 <span class="keywordflow">if</span> (xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->status() != IO_Ok) {
<a name="l00409"></a>00409 kdDebug(399) << <span class="stringliteral">"XCF: read failure on layer image offsets"</span> << endl;
<a name="l00410"></a>00410 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00411"></a>00411 }
<a name="l00412"></a>00412
<a name="l00413"></a>00413 <span class="comment">// Allocate the individual tile QImages based on the size and type</span>
<a name="l00414"></a>00414 <span class="comment">// of this layer.</span>
<a name="l00415"></a>00415
<a name="l00416"></a>00416 <span class="keywordflow">if</span>( !composeTiles(xcf_image))
<a name="l00417"></a>00417 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00418"></a>00418 xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->at(layer.hierarchy_offset);
<a name="l00419"></a>00419
<a name="l00420"></a>00420 <span class="comment">// As tiles are loaded, they are copied into the layers tiles by</span>
<a name="l00421"></a>00421 <span class="comment">// this routine. (loadMask(), below, uses a slightly different</span>
<a name="l00422"></a>00422 <span class="comment">// version of assignBytes().)</span>
<a name="l00423"></a>00423
<a name="l00424"></a>00424 layer.assignBytes = assignImageBytes;
<a name="l00425"></a>00425
<a name="l00426"></a>00426 <span class="keywordflow">if</span> (!loadHierarchy(xcf_io, layer))
<a name="l00427"></a>00427 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00428"></a>00428
<a name="l00429"></a>00429 <span class="keywordflow">if</span> (layer.mask_offset != 0) {
<a name="l00430"></a>00430 xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->at(layer.mask_offset);
<a name="l00431"></a>00431
<a name="l00432"></a>00432 <span class="keywordflow">if</span> (!loadMask(xcf_io, layer))
<a name="l00433"></a>00433 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00434"></a>00434 }
<a name="l00435"></a>00435
<a name="l00436"></a>00436 <span class="comment">// Now we should have enough information to initialize the final</span>
<a name="l00437"></a>00437 <span class="comment">// QImage. The first visible layer determines the attributes</span>
<a name="l00438"></a>00438 <span class="comment">// of the QImage.</span>
<a name="l00439"></a>00439
<a name="l00440"></a>00440 <span class="keywordflow">if</span> (!xcf_image.initialized) {
<a name="l00441"></a>00441 <span class="keywordflow">if</span>( !initializeImage(xcf_image))
<a name="l00442"></a>00442 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00443"></a>00443 copyLayerToImage(xcf_image);
<a name="l00444"></a>00444 xcf_image.initialized = <span class="keyword">true</span>;
<a name="l00445"></a>00445 } <span class="keywordflow">else</span>
<a name="l00446"></a>00446 mergeLayerIntoImage(xcf_image);
<a name="l00447"></a>00447
<a name="l00448"></a>00448 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00449"></a>00449 }
<a name="l00450"></a>00450
<a name="l00451"></a>00451
<a name="l00459"></a>00459 <span class="keywordtype">bool</span> XCFImageFormat::loadLayerProperties(<a class="codeRef" href="qdatastream.html">QDataStream</a>& xcf_io, Layer& layer)
<a name="l00460"></a>00460 {
<a name="l00461"></a>00461 <span class="keywordflow">while</span> (<span class="keyword">true</span>) {
<a name="l00462"></a>00462 PropType type;
<a name="l00463"></a>00463 <a class="codeRef" href="qbytearray.html">QByteArray</a> bytes;
<a name="l00464"></a>00464
<a name="l00465"></a>00465 <span class="keywordflow">if</span> (!loadProperty(xcf_io, type, bytes)) {
<a name="l00466"></a>00466 kdDebug(399) << <span class="stringliteral">"XCF: error loading layer properties"</span> << endl;
<a name="l00467"></a>00467 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00468"></a>00468 }
<a name="l00469"></a>00469
<a name="l00470"></a>00470 <a class="codeRef" href="qdatastream.html">QDataStream</a> property(bytes, IO_ReadOnly);
<a name="l00471"></a>00471
<a name="l00472"></a>00472 <span class="keywordflow">switch</span> (type) {
<a name="l00473"></a>00473 <span class="keywordflow">case</span> PROP_END:
<a name="l00474"></a>00474 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00475"></a>00475
<a name="l00476"></a>00476 <span class="keywordflow">case</span> PROP_ACTIVE_LAYER:
<a name="l00477"></a>00477 layer.active = <span class="keyword">true</span>;
<a name="l00478"></a>00478 <span class="keywordflow">break</span>;
<a name="l00479"></a>00479
<a name="l00480"></a>00480 <span class="keywordflow">case</span> PROP_OPACITY:
<a name="l00481"></a>00481 <span class="keyword">property</span> >> layer.opacity;
<a name="l00482"></a>00482 <span class="keywordflow">break</span>;
<a name="l00483"></a>00483
<a name="l00484"></a>00484 <span class="keywordflow">case</span> PROP_VISIBLE:
<a name="l00485"></a>00485 <span class="keyword">property</span> >> layer.visible;
<a name="l00486"></a>00486 <span class="keywordflow">break</span>;
<a name="l00487"></a>00487
<a name="l00488"></a>00488 <span class="keywordflow">case</span> PROP_LINKED:
<a name="l00489"></a>00489 <span class="keyword">property</span> >> layer.linked;
<a name="l00490"></a>00490 <span class="keywordflow">break</span>;
<a name="l00491"></a>00491
<a name="l00492"></a>00492 <span class="keywordflow">case</span> PROP_PRESERVE_TRANSPARENCY:
<a name="l00493"></a>00493 <span class="keyword">property</span> >> layer.preserve_transparency;
<a name="l00494"></a>00494 <span class="keywordflow">break</span>;
<a name="l00495"></a>00495
<a name="l00496"></a>00496 <span class="keywordflow">case</span> PROP_APPLY_MASK:
<a name="l00497"></a>00497 <span class="keyword">property</span> >> layer.apply_mask;
<a name="l00498"></a>00498 <span class="keywordflow">break</span>;
<a name="l00499"></a>00499
<a name="l00500"></a>00500 <span class="keywordflow">case</span> PROP_EDIT_MASK:
<a name="l00501"></a>00501 <span class="keyword">property</span> >> layer.edit_mask;
<a name="l00502"></a>00502 <span class="keywordflow">break</span>;
<a name="l00503"></a>00503
<a name="l00504"></a>00504 <span class="keywordflow">case</span> PROP_SHOW_MASK:
<a name="l00505"></a>00505 <span class="keyword">property</span> >> layer.show_mask;
<a name="l00506"></a>00506 <span class="keywordflow">break</span>;
<a name="l00507"></a>00507
<a name="l00508"></a>00508 <span class="keywordflow">case</span> PROP_OFFSETS:
<a name="l00509"></a>00509 <span class="keyword">property</span> >> layer.x_offset >> layer.y_offset;
<a name="l00510"></a>00510 <span class="keywordflow">break</span>;
<a name="l00511"></a>00511
<a name="l00512"></a>00512 <span class="keywordflow">case</span> PROP_MODE:
<a name="l00513"></a>00513 <span class="keyword">property</span> >> layer.mode;
<a name="l00514"></a>00514 <span class="keywordflow">break</span>;
<a name="l00515"></a>00515
<a name="l00516"></a>00516 <span class="keywordflow">case</span> PROP_TATTOO:
<a name="l00517"></a>00517 <span class="keyword">property</span> >> layer.tattoo;
<a name="l00518"></a>00518 <span class="keywordflow">break</span>;
<a name="l00519"></a>00519
<a name="l00520"></a>00520 <span class="keywordflow">default</span>:
<a name="l00521"></a>00521 kdDebug(399) << <span class="stringliteral">"XCF: unimplemented layer property "</span> << type
<a name="l00522"></a>00522 << <span class="stringliteral">", size "</span> << bytes.size() << endl;
<a name="l00523"></a>00523 }
<a name="l00524"></a>00524 }
<a name="l00525"></a>00525 }
<a name="l00526"></a>00526
<a name="l00527"></a>00527
<a name="l00533"></a>00533 <span class="keywordtype">bool</span> XCFImageFormat::composeTiles(XCFImage& xcf_image)
<a name="l00534"></a>00534 {
<a name="l00535"></a>00535 Layer& layer(xcf_image.layer);
<a name="l00536"></a>00536
<a name="l00537"></a>00537 layer.nrows = (layer.height + TILE_HEIGHT - 1) / TILE_HEIGHT;
<a name="l00538"></a>00538 layer.ncols = (layer.width + TILE_WIDTH - 1) / TILE_WIDTH;
<a name="l00539"></a>00539
<a name="l00540"></a>00540 layer.image_tiles.resize(layer.nrows);
<a name="l00541"></a>00541
<a name="l00542"></a>00542 <span class="keywordflow">if</span> (layer.type == GRAYA_GIMAGE || layer.type == INDEXEDA_GIMAGE)
<a name="l00543"></a>00543 layer.alpha_tiles.resize(layer.nrows);
<a name="l00544"></a>00544
<a name="l00545"></a>00545 <span class="keywordflow">if</span> (layer.mask_offset != 0)
<a name="l00546"></a>00546 layer.mask_tiles.resize(layer.nrows);
<a name="l00547"></a>00547
<a name="l00548"></a>00548 <span class="keywordflow">for</span> (uint j = 0; j < layer.nrows; j++) {
<a name="l00549"></a>00549 layer.image_tiles[j].resize(layer.ncols);
<a name="l00550"></a>00550
<a name="l00551"></a>00551 <span class="keywordflow">if</span> (layer.type == GRAYA_GIMAGE || layer.type == INDEXEDA_GIMAGE)
<a name="l00552"></a>00552 layer.alpha_tiles[j].resize(layer.ncols);
<a name="l00553"></a>00553
<a name="l00554"></a>00554 <span class="keywordflow">if</span> (layer.mask_offset != 0)
<a name="l00555"></a>00555 layer.mask_tiles[j].resize(layer.ncols);
<a name="l00556"></a>00556 }
<a name="l00557"></a>00557
<a name="l00558"></a>00558 <span class="keywordflow">for</span> (uint j = 0; j < layer.nrows; j++) {
<a name="l00559"></a>00559 <span class="keywordflow">for</span> (uint i = 0; i < layer.ncols; i++) {
<a name="l00560"></a>00560
<a name="l00561"></a>00561 uint tile_width = (i + 1) * TILE_WIDTH <= layer.width
<a name="l00562"></a>00562 ? TILE_WIDTH : layer.width - i * TILE_WIDTH;
<a name="l00563"></a>00563
<a name="l00564"></a>00564 uint tile_height = (j + 1) * TILE_HEIGHT <= layer.height
<a name="l00565"></a>00565 ? TILE_HEIGHT : layer.height - j * TILE_HEIGHT;
<a name="l00566"></a>00566
<a name="l00567"></a>00567 <span class="comment">// Try to create the most appropriate QImage (each GIMP layer</span>
<a name="l00568"></a>00568 <span class="comment">// type is treated slightly differently)</span>
<a name="l00569"></a>00569
<a name="l00570"></a>00570 <span class="keywordflow">switch</span> (layer.type) {
<a name="l00571"></a>00571 <span class="keywordflow">case</span> RGB_GIMAGE:
<a name="l00572"></a>00572 layer.image_tiles[j][i] = <a class="codeRef" href="qimage.html">QImage</a>(tile_width, tile_height, 32, 0);
<a name="l00573"></a>00573 <span class="keywordflow">if</span>( layer.image_tiles[j][i].isNull())
<a name="l00574"></a>00574 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00575"></a>00575 layer.image_tiles[j][i].setAlphaBuffer(<span class="keyword">false</span>);
<a name="l00576"></a>00576 <span class="keywordflow">break</span>;
<a name="l00577"></a>00577
<a name="l00578"></a>00578 <span class="keywordflow">case</span> RGBA_GIMAGE:
<a name="l00579"></a>00579 layer.image_tiles[j][i] = <a class="codeRef" href="qimage.html">QImage</a>(tile_width, tile_height, 32, 0);
<a name="l00580"></a>00580 <span class="keywordflow">if</span>( layer.image_tiles[j][i].isNull())
<a name="l00581"></a>00581 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00582"></a>00582 layer.image_tiles[j][i].setAlphaBuffer(<span class="keyword">true</span>);
<a name="l00583"></a>00583 <span class="keywordflow">break</span>;
<a name="l00584"></a>00584
<a name="l00585"></a>00585 <span class="keywordflow">case</span> GRAY_GIMAGE:
<a name="l00586"></a>00586 layer.image_tiles[j][i] = <a class="codeRef" href="qimage.html">QImage</a>(tile_width, tile_height, 8, 256);
<a name="l00587"></a>00587 <span class="keywordflow">if</span>( layer.image_tiles[j][i].isNull())
<a name="l00588"></a>00588 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00589"></a>00589 setGrayPalette(layer.image_tiles[j][i]);
<a name="l00590"></a>00590 <span class="keywordflow">break</span>;
<a name="l00591"></a>00591
<a name="l00592"></a>00592 <span class="keywordflow">case</span> GRAYA_GIMAGE:
<a name="l00593"></a>00593 layer.image_tiles[j][i] = <a class="codeRef" href="qimage.html">QImage</a>(tile_width, tile_height, 8, 256);
<a name="l00594"></a>00594 <span class="keywordflow">if</span>( layer.image_tiles[j][i].isNull())
<a name="l00595"></a>00595 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00596"></a>00596 setGrayPalette(layer.image_tiles[j][i]);
<a name="l00597"></a>00597
<a name="l00598"></a>00598 layer.alpha_tiles[j][i] = <a class="codeRef" href="qimage.html">QImage</a>( tile_width, tile_height, 8, 256);
<a name="l00599"></a>00599 <span class="keywordflow">if</span>( layer.alpha_tiles[j][i].isNull())
<a name="l00600"></a>00600 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00601"></a>00601 setGrayPalette(layer.alpha_tiles[j][i]);
<a name="l00602"></a>00602 <span class="keywordflow">break</span>;
<a name="l00603"></a>00603
<a name="l00604"></a>00604 <span class="keywordflow">case</span> INDEXED_GIMAGE:
<a name="l00605"></a>00605 layer.image_tiles[j][i] = <a class="codeRef" href="qimage.html">QImage</a>(tile_width, tile_height, 8,
<a name="l00606"></a>00606 xcf_image.num_colors);
<a name="l00607"></a>00607 <span class="keywordflow">if</span>( layer.image_tiles[j][i].isNull())
<a name="l00608"></a>00608 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00609"></a>00609 setPalette(xcf_image, layer.image_tiles[j][i]);
<a name="l00610"></a>00610 <span class="keywordflow">break</span>;
<a name="l00611"></a>00611
<a name="l00612"></a>00612 <span class="keywordflow">case</span> INDEXEDA_GIMAGE:
<a name="l00613"></a>00613 layer.image_tiles[j][i] = <a class="codeRef" href="qimage.html">QImage</a>(tile_width, tile_height,8,
<a name="l00614"></a>00614 xcf_image.num_colors);
<a name="l00615"></a>00615 <span class="keywordflow">if</span>( layer.image_tiles[j][i].isNull())
<a name="l00616"></a>00616 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00617"></a>00617 setPalette(xcf_image, layer.image_tiles[j][i]);
<a name="l00618"></a>00618
<a name="l00619"></a>00619 layer.alpha_tiles[j][i] = <a class="codeRef" href="qimage.html">QImage</a>(tile_width, tile_height, 8, 256);
<a name="l00620"></a>00620 <span class="keywordflow">if</span>( layer.alpha_tiles[j][i].isNull())
<a name="l00621"></a>00621 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00622"></a>00622 setGrayPalette(layer.alpha_tiles[j][i]);
<a name="l00623"></a>00623 }
<a name="l00624"></a>00624
<a name="l00625"></a>00625 <span class="keywordflow">if</span> (layer.mask_offset != 0) {
<a name="l00626"></a>00626 layer.mask_tiles[j][i] = <a class="codeRef" href="qimage.html">QImage</a>(tile_width, tile_height, 8, 256);
<a name="l00627"></a>00627 <span class="keywordflow">if</span>( layer.mask_tiles[j][i].isNull())
<a name="l00628"></a>00628 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00629"></a>00629 setGrayPalette(layer.mask_tiles[j][i]);
<a name="l00630"></a>00630 }
<a name="l00631"></a>00631 }
<a name="l00632"></a>00632 }
<a name="l00633"></a>00633 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00634"></a>00634 }
<a name="l00635"></a>00635
<a name="l00636"></a>00636
<a name="l00643"></a>00643 <span class="keywordtype">void</span> XCFImageFormat::setGrayPalette(<a class="codeRef" href="qimage.html">QImage</a>& <a class="codeRef" href="qimageio.html#image">image</a>)
<a name="l00644"></a>00644 {
<a name="l00645"></a>00645 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < 256; i++)
<a name="l00646"></a>00646 image.<a class="codeRef" href="qimage.html#setColor">setColor</a>(i, qRgb(i, i, i));
<a name="l00647"></a>00647 }
<a name="l00648"></a>00648
<a name="l00649"></a>00649
<a name="l00655"></a>00655 <span class="keywordtype">void</span> XCFImageFormat::setPalette(XCFImage& xcf_image, <a class="codeRef" href="qimage.html">QImage</a>& image)
<a name="l00656"></a>00656 {
<a name="l00657"></a>00657 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < xcf_image.num_colors; i++)
<a name="l00658"></a>00658 image.<a class="codeRef" href="qimage.html#setColor">setColor</a>(i, xcf_image.palette[i]);
<a name="l00659"></a>00659 }
<a name="l00660"></a>00660
<a name="l00661"></a>00661
<a name="l00669"></a>00669 <span class="keywordtype">void</span> XCFImageFormat::assignImageBytes(Layer& layer, uint i, uint j)
<a name="l00670"></a>00670 {
<a name="l00671"></a>00671 uchar* tile = layer.tile;
<a name="l00672"></a>00672
<a name="l00673"></a>00673 <span class="keywordflow">switch</span> (layer.type) {
<a name="l00674"></a>00674 <span class="keywordflow">case</span> RGB_GIMAGE:
<a name="l00675"></a>00675 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> l = 0; l < layer.image_tiles[j][i].height(); l++) {
<a name="l00676"></a>00676 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> k = 0; k < layer.image_tiles[j][i].width(); k++) {
<a name="l00677"></a>00677 layer.image_tiles[j][i].setPixel(k, l,
<a name="l00678"></a>00678 qRgb(tile[0], tile[1], tile[2]));
<a name="l00679"></a>00679 tile += <span class="keyword">sizeof</span>(QRgb);
<a name="l00680"></a>00680 }
<a name="l00681"></a>00681 }
<a name="l00682"></a>00682 <span class="keywordflow">break</span>;
<a name="l00683"></a>00683
<a name="l00684"></a>00684 <span class="keywordflow">case</span> RGBA_GIMAGE:
<a name="l00685"></a>00685 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> l = 0; l < layer.image_tiles[j][i].height(); l++ ) {
<a name="l00686"></a>00686 <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> k = 0; k < layer.image_tiles[j][i].width(); k++ ) {
<a name="l00687"></a>00687 layer.image_tiles[j][i].setPixel(k, l,
<a name="l00688"></a>00688 qRgba(tile[0], tile[1], tile[2], tile[3]));
<a name="l00689"></a>00689 tile += <span class="keyword">sizeof</span>(QRgb);
<a name="l00690"></a>00690 }
<a name="l00691"></a>00691 }
<a name="l00692"></a>00692 <span class="keywordflow">break</span>;
<a name="l00693"></a>00693
<a name="l00694"></a>00694 <span class="keywordflow">case</span> GRAY_GIMAGE:
<a name="l00695"></a>00695 <span class="keywordflow">case</span> INDEXED_GIMAGE:
<a name="l00696"></a>00696 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> l = 0; l < layer.image_tiles[j][i].height(); l++) {
<a name="l00697"></a>00697 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> k = 0; k < layer.image_tiles[j][i].width(); k++) {
<a name="l00698"></a>00698 layer.image_tiles[j][i].setPixel(k, l, tile[0]);
<a name="l00699"></a>00699 tile += <span class="keyword">sizeof</span>(QRgb);
<a name="l00700"></a>00700 }
<a name="l00701"></a>00701 }
<a name="l00702"></a>00702 <span class="keywordflow">break</span>;
<a name="l00703"></a>00703
<a name="l00704"></a>00704 <span class="keywordflow">case</span> GRAYA_GIMAGE:
<a name="l00705"></a>00705 <span class="keywordflow">case</span> INDEXEDA_GIMAGE:
<a name="l00706"></a>00706 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> l = 0; l < layer.image_tiles[j][i].height(); l++) {
<a name="l00707"></a>00707 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> k = 0; k < layer.image_tiles[j][i].width(); k++) {
<a name="l00708"></a>00708
<a name="l00709"></a>00709 <span class="comment">// The "if" here should not be necessary, but apparently there</span>
<a name="l00710"></a>00710 <span class="comment">// are some cases where the image can contain larger indices</span>
<a name="l00711"></a>00711 <span class="comment">// than there are colors in the palette. (A bug in The GIMP?)</span>
<a name="l00712"></a>00712
<a name="l00713"></a>00713 <span class="keywordflow">if</span> (tile[0] < layer.image_tiles[j][i].numColors())
<a name="l00714"></a>00714 layer.image_tiles[j][i].setPixel(k, l, tile[0]);
<a name="l00715"></a>00715
<a name="l00716"></a>00716 layer.alpha_tiles[j][i].setPixel(k, l, tile[1]);
<a name="l00717"></a>00717 tile += <span class="keyword">sizeof</span>(QRgb);
<a name="l00718"></a>00718 }
<a name="l00719"></a>00719 }
<a name="l00720"></a>00720 <span class="keywordflow">break</span>;
<a name="l00721"></a>00721 }
<a name="l00722"></a>00722 }
<a name="l00723"></a>00723
<a name="l00724"></a>00724
<a name="l00733"></a>00733 <span class="keywordtype">bool</span> XCFImageFormat::loadHierarchy(<a class="codeRef" href="qdatastream.html">QDataStream</a>& xcf_io, Layer& layer)
<a name="l00734"></a>00734 {
<a name="l00735"></a>00735 Q_INT32 width;
<a name="l00736"></a>00736 Q_INT32 height;
<a name="l00737"></a>00737 Q_INT32 bpp;
<a name="l00738"></a>00738 Q_UINT32 offset;
<a name="l00739"></a>00739
<a name="l00740"></a>00740 xcf_io >> width >> height >> bpp >> offset;
<a name="l00741"></a>00741
<a name="l00742"></a>00742 <span class="keywordflow">if</span> (xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->status() != IO_Ok) {
<a name="l00743"></a>00743 kdDebug(399) << <span class="stringliteral">"XCF: read failure on layer "</span> << layer.name << <span class="stringliteral">" image header"</span> << endl;
<a name="l00744"></a>00744 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00745"></a>00745 }
<a name="l00746"></a>00746
<a name="l00747"></a>00747 <span class="comment">// GIMP stores images in a "mipmap"-like format (multiple levels of</span>
<a name="l00748"></a>00748 <span class="comment">// increasingly lower resolution). Only the top level is used here,</span>
<a name="l00749"></a>00749 <span class="comment">// however.</span>
<a name="l00750"></a>00750
<a name="l00751"></a>00751 Q_UINT32 junk;
<a name="l00752"></a>00752 <span class="keywordflow">do</span> {
<a name="l00753"></a>00753 xcf_io >> junk;
<a name="l00754"></a>00754
<a name="l00755"></a>00755 <span class="keywordflow">if</span> (xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->status() != IO_Ok) {
<a name="l00756"></a>00756 kdDebug(399) << <span class="stringliteral">"XCF: read failure on layer "</span> << layer.name << <span class="stringliteral">" level offsets"</span> << endl;
<a name="l00757"></a>00757 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00758"></a>00758 }
<a name="l00759"></a>00759 } <span class="keywordflow">while</span> (junk != 0);
<a name="l00760"></a>00760
<a name="l00761"></a>00761 <a class="codeRef" href="qiodevice.html#Offset">QIODevice::Offset</a> saved_pos = xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->at();
<a name="l00762"></a>00762
<a name="l00763"></a>00763 xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->at(offset);
<a name="l00764"></a>00764 <span class="keywordflow">if</span> (!loadLevel(xcf_io, layer, bpp))
<a name="l00765"></a>00765 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00766"></a>00766
<a name="l00767"></a>00767 xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->at(saved_pos);
<a name="l00768"></a>00768 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00769"></a>00769 }
<a name="l00770"></a>00770
<a name="l00771"></a>00771
<a name="l00780"></a>00780 <span class="keywordtype">bool</span> XCFImageFormat::loadLevel(<a class="codeRef" href="qdatastream.html">QDataStream</a>& xcf_io, Layer& layer, Q_INT32 bpp)
<a name="l00781"></a>00781 {
<a name="l00782"></a>00782 Q_INT32 width;
<a name="l00783"></a>00783 Q_INT32 height;
<a name="l00784"></a>00784 Q_UINT32 offset;
<a name="l00785"></a>00785
<a name="l00786"></a>00786 xcf_io >> width >> height >> offset;
<a name="l00787"></a>00787
<a name="l00788"></a>00788 <span class="keywordflow">if</span> (xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->status() != IO_Ok) {
<a name="l00789"></a>00789 kdDebug(399) << <span class="stringliteral">"XCF: read failure on layer "</span> << layer.name << <span class="stringliteral">" level info"</span> << endl;
<a name="l00790"></a>00790 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00791"></a>00791 }
<a name="l00792"></a>00792
<a name="l00793"></a>00793 <span class="keywordflow">if</span> (offset == 0)
<a name="l00794"></a>00794 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00795"></a>00795
<a name="l00796"></a>00796 <span class="keywordflow">for</span> (uint j = 0; j < layer.nrows; j++) {
<a name="l00797"></a>00797 <span class="keywordflow">for</span> (uint i = 0; i < layer.ncols; i++) {
<a name="l00798"></a>00798
<a name="l00799"></a>00799 <span class="keywordflow">if</span> (offset == 0) {
<a name="l00800"></a>00800 kdDebug(399) << <span class="stringliteral">"XCF: incorrect number of tiles in layer "</span> << layer.name << endl;
<a name="l00801"></a>00801 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00802"></a>00802 }
<a name="l00803"></a>00803
<a name="l00804"></a>00804 <a class="codeRef" href="qiodevice.html#Offset">QIODevice::Offset</a> saved_pos = xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->at();
<a name="l00805"></a>00805 Q_UINT32 offset2;
<a name="l00806"></a>00806 xcf_io >> offset2;
<a name="l00807"></a>00807
<a name="l00808"></a>00808 <span class="keywordflow">if</span> (xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->status() != IO_Ok) {
<a name="l00809"></a>00809 kdDebug(399) << <span class="stringliteral">"XCF: read failure on layer "</span> << layer.name << <span class="stringliteral">" level offset look-ahead"</span> << endl;
<a name="l00810"></a>00810 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00811"></a>00811 }
<a name="l00812"></a>00812
<a name="l00813"></a>00813 <span class="comment">// Evidently, RLE can occasionally expand a tile instead of compressing it!</span>
<a name="l00814"></a>00814
<a name="l00815"></a>00815 <span class="keywordflow">if</span> (offset2 == 0)
<a name="l00816"></a>00816 offset2 = offset + (uint)(TILE_WIDTH * TILE_HEIGHT * 4 * 1.5);
<a name="l00817"></a>00817
<a name="l00818"></a>00818 xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->at(offset);
<a name="l00819"></a>00819 <span class="keywordtype">int</span> size = layer.image_tiles[j][i].width() * layer.image_tiles[j][i].height();
<a name="l00820"></a>00820
<a name="l00821"></a>00821 <span class="keywordflow">if</span> (!loadTileRLE(xcf_io, layer.tile, size, offset2 - offset, bpp))
<a name="l00822"></a>00822 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00823"></a>00823
<a name="l00824"></a>00824 <span class="comment">// The bytes in the layer tile are juggled differently depending on</span>
<a name="l00825"></a>00825 <span class="comment">// the target QImage. The caller has set layer.assignBytes to the</span>
<a name="l00826"></a>00826 <span class="comment">// appropriate routine.</span>
<a name="l00827"></a>00827
<a name="l00828"></a>00828 layer.assignBytes(layer, i, j);
<a name="l00829"></a>00829
<a name="l00830"></a>00830 xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->at(saved_pos);
<a name="l00831"></a>00831 xcf_io >> offset;
<a name="l00832"></a>00832
<a name="l00833"></a>00833 <span class="keywordflow">if</span> (xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->status() != IO_Ok) {
<a name="l00834"></a>00834 kdDebug(399) << <span class="stringliteral">"XCF: read failure on layer "</span> << layer.name << <span class="stringliteral">" level offset"</span> << endl;
<a name="l00835"></a>00835 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00836"></a>00836 }
<a name="l00837"></a>00837 }
<a name="l00838"></a>00838 }
<a name="l00839"></a>00839
<a name="l00840"></a>00840 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00841"></a>00841 }
<a name="l00842"></a>00842
<a name="l00843"></a>00843
<a name="l00850"></a>00850 <span class="keywordtype">bool</span> XCFImageFormat::loadMask(<a class="codeRef" href="qdatastream.html">QDataStream</a>& xcf_io, Layer& layer)
<a name="l00851"></a>00851 {
<a name="l00852"></a>00852 Q_INT32 width;
<a name="l00853"></a>00853 Q_INT32 height;
<a name="l00854"></a>00854 <span class="keywordtype">char</span>* name;
<a name="l00855"></a>00855
<a name="l00856"></a>00856 xcf_io >> width >> height >> name;
<a name="l00857"></a>00857
<a name="l00858"></a>00858 <span class="keywordflow">if</span> (xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->status() != IO_Ok) {
<a name="l00859"></a>00859 kdDebug(399) << <span class="stringliteral">"XCF: read failure on mask info"</span> << endl;
<a name="l00860"></a>00860 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00861"></a>00861 }
<a name="l00862"></a>00862
<a name="l00863"></a>00863 <span class="keyword">delete</span> name;
<a name="l00864"></a>00864
<a name="l00865"></a>00865 <span class="keywordflow">if</span> (!loadChannelProperties(xcf_io, layer))
<a name="l00866"></a>00866 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00867"></a>00867
<a name="l00868"></a>00868 Q_UINT32 hierarchy_offset;
<a name="l00869"></a>00869 xcf_io >> hierarchy_offset;
<a name="l00870"></a>00870
<a name="l00871"></a>00871 <span class="keywordflow">if</span> (xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->status() != IO_Ok) {
<a name="l00872"></a>00872 kdDebug(399) << <span class="stringliteral">"XCF: read failure on mask image offset"</span> << endl;
<a name="l00873"></a>00873 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00874"></a>00874 }
<a name="l00875"></a>00875
<a name="l00876"></a>00876 xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->at(hierarchy_offset);
<a name="l00877"></a>00877 layer.assignBytes = assignMaskBytes;
<a name="l00878"></a>00878
<a name="l00879"></a>00879 <span class="keywordflow">if</span> (!loadHierarchy(xcf_io, layer))
<a name="l00880"></a>00880 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00881"></a>00881
<a name="l00882"></a>00882 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00883"></a>00883 }
<a name="l00884"></a>00884
<a name="l00885"></a>00885
<a name="l00909"></a>00909 <span class="keywordtype">bool</span> XCFImageFormat::loadTileRLE(<a class="codeRef" href="qdatastream.html">QDataStream</a>& xcf_io, uchar* tile, <span class="keywordtype">int</span> image_size,
<a name="l00910"></a>00910 <span class="keywordtype">int</span> data_length, Q_INT32 bpp)
<a name="l00911"></a>00911 {
<a name="l00912"></a>00912 uchar* data;
<a name="l00913"></a>00913
<a name="l00914"></a>00914 uchar* xcfdata;
<a name="l00915"></a>00915 uchar* xcfodata;
<a name="l00916"></a>00916 uchar* xcfdatalimit;
<a name="l00917"></a>00917
<a name="l00918"></a>00918 xcfdata = xcfodata = <span class="keyword">new</span> uchar[data_length];
<a name="l00919"></a>00919
<a name="l00920"></a>00920 xcf_io.<a class="codeRef" href="qdatastream.html#readRawBytes">readRawBytes</a>((<span class="keywordtype">char</span>*)xcfdata, data_length);
<a name="l00921"></a>00921
<a name="l00922"></a>00922 <span class="keywordflow">if</span> (xcf_io.<a class="codeRef" href="qdatastream.html#device">device</a>()->status() != IO_Ok) {
<a name="l00923"></a>00923 <span class="keyword">delete</span>[] xcfodata;
<a name="l00924"></a>00924 kdDebug(399) << <span class="stringliteral">"XCF: read failure on tile"</span> << endl;
<a name="l00925"></a>00925 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00926"></a>00926 }
<a name="l00927"></a>00927
<a name="l00928"></a>00928 xcfdatalimit = &xcfodata[data_length - 1];
<a name="l00929"></a>00929
<a name="l00930"></a>00930 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i < bpp; ++i) {
<a name="l00931"></a>00931
<a name="l00932"></a>00932 data = tile + i;
<a name="l00933"></a>00933
<a name="l00934"></a>00934 <span class="keywordtype">int</span> count = 0;
<a name="l00935"></a>00935 <span class="keywordtype">int</span> size = image_size;
<a name="l00936"></a>00936
<a name="l00937"></a>00937 <span class="keywordflow">while</span> (size > 0) {
<a name="l00938"></a>00938 <span class="keywordflow">if</span> (xcfdata > xcfdatalimit)
<a name="l00939"></a>00939 <span class="keywordflow">goto</span> bogus_rle;
<a name="l00940"></a>00940
<a name="l00941"></a>00941 uchar val = *xcfdata++;
<a name="l00942"></a>00942 uint length = val;
<a name="l00943"></a>00943
<a name="l00944"></a>00944 <span class="keywordflow">if</span> (length >= 128) {
<a name="l00945"></a>00945 length = 255 - (length - 1);
<a name="l00946"></a>00946 <span class="keywordflow">if</span> (length == 128) {
<a name="l00947"></a>00947 <span class="keywordflow">if</span> (xcfdata >= xcfdatalimit)
<a name="l00948"></a>00948 <span class="keywordflow">goto</span> bogus_rle;
<a name="l00949"></a>00949
<a name="l00950"></a>00950 length = (*xcfdata << 8) + xcfdata[1];
<a name="l00951"></a>00951
<a name="l00952"></a>00952 xcfdata += 2;
<a name="l00953"></a>00953 }
<a name="l00954"></a>00954
<a name="l00955"></a>00955 count += length;
<a name="l00956"></a>00956 size -= length;
<a name="l00957"></a>00957
<a name="l00958"></a>00958 <span class="keywordflow">if</span> (size < 0)
<a name="l00959"></a>00959 <span class="keywordflow">goto</span> bogus_rle;
<a name="l00960"></a>00960
<a name="l00961"></a>00961 <span class="keywordflow">if</span> (&xcfdata[length - 1] > xcfdatalimit)
<a name="l00962"></a>00962 <span class="keywordflow">goto</span> bogus_rle;
<a name="l00963"></a>00963
<a name="l00964"></a>00964 <span class="keywordflow">while</span> (length-- > 0) {
<a name="l00965"></a>00965 *data = *xcfdata++;
<a name="l00966"></a>00966 data += <span class="keyword">sizeof</span>(QRgb);
<a name="l00967"></a>00967 }
<a name="l00968"></a>00968 } <span class="keywordflow">else</span> {
<a name="l00969"></a>00969 length += 1;
<a name="l00970"></a>00970 <span class="keywordflow">if</span> (length == 128) {
<a name="l00971"></a>00971 <span class="keywordflow">if</span> (xcfdata >= xcfdatalimit)
<a name="l00972"></a>00972 <span class="keywordflow">goto</span> bogus_rle;
<a name="l00973"></a>00973
<a name="l00974"></a>00974 length = (*xcfdata << 8) + xcfdata[1];
<a name="l00975"></a>00975 xcfdata += 2;
<a name="l00976"></a>00976 }
<a name="l00977"></a>00977
<a name="l00978"></a>00978 count += length;
<a name="l00979"></a>00979 size -= length;
<a name="l00980"></a>00980
<a name="l00981"></a>00981 <span class="keywordflow">if</span> (size < 0)
<a name="l00982"></a>00982 <span class="keywordflow">goto</span> bogus_rle;
<a name="l00983"></a>00983
<a name="l00984"></a>00984 <span class="keywordflow">if</span> (xcfdata > xcfdatalimit)
<a name="l00985"></a>00985 <span class="keywordflow">goto</span> bogus_rle;
<a name="l00986"></a>00986
<a name="l00987"></a>00987 val = *xcfdata++;
<a name="l00988"></a>00988
<a name="l00989"></a>00989 <span class="keywordflow">while</span> (length-- > 0) {
<a name="l00990"></a>00990 *data = val;
<a name="l00991"></a>00991 data += <span class="keyword">sizeof</span>(QRgb);
<a name="l00992"></a>00992 }
<a name="l00993"></a>00993 }
<a name="l00994"></a>00994 }
<a name="l00995"></a>00995 }
<a name="l00996"></a>00996
<a name="l00997"></a>00997 <span class="keyword">delete</span>[] xcfodata;
<a name="l00998"></a>00998 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00999"></a>00999
<a name="l01000"></a>01000 bogus_rle:
<a name="l01001"></a>01001
<a name="l01002"></a>01002 kdDebug(399) << <span class="stringliteral">"The run length encoding could not be decoded properly"</span> << endl;
<a name="l01003"></a>01003 <span class="keyword">delete</span>[] xcfodata;
<a name="l01004"></a>01004 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l01005"></a>01005 }
<a name="l01006"></a>01006
<a name="l01007"></a>01007
<a name="l01015"></a>01015 <span class="keywordtype">bool</span> XCFImageFormat::loadChannelProperties(<a class="codeRef" href="qdatastream.html">QDataStream</a>& xcf_io, Layer& layer)
<a name="l01016"></a>01016 {
<a name="l01017"></a>01017 <span class="keywordflow">while</span> (<span class="keyword">true</span>) {
<a name="l01018"></a>01018 PropType type;
<a name="l01019"></a>01019 <a class="codeRef" href="qbytearray.html">QByteArray</a> bytes;
<a name="l01020"></a>01020
<a name="l01021"></a>01021 <span class="keywordflow">if</span> (!loadProperty(xcf_io, type, bytes)) {
<a name="l01022"></a>01022 kdDebug(399) << <span class="stringliteral">"XCF: error loading channel properties"</span> << endl;
<a name="l01023"></a>01023 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l01024"></a>01024 }
<a name="l01025"></a>01025
<a name="l01026"></a>01026 <a class="codeRef" href="qdatastream.html">QDataStream</a> property(bytes, IO_ReadOnly);
<a name="l01027"></a>01027
<a name="l01028"></a>01028 <span class="keywordflow">switch</span> (type) {
<a name="l01029"></a>01029 <span class="keywordflow">case</span> PROP_END:
<a name="l01030"></a>01030 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l01031"></a>01031
<a name="l01032"></a>01032 <span class="keywordflow">case</span> PROP_OPACITY:
<a name="l01033"></a>01033 <span class="keyword">property</span> >> layer.mask_channel.opacity;
<a name="l01034"></a>01034 <span class="keywordflow">break</span>;
<a name="l01035"></a>01035
<a name="l01036"></a>01036 <span class="keywordflow">case</span> PROP_VISIBLE:
<a name="l01037"></a>01037 <span class="keyword">property</span> >> layer.mask_channel.visible;
<a name="l01038"></a>01038 <span class="keywordflow">break</span>;
<a name="l01039"></a>01039
<a name="l01040"></a>01040 <span class="keywordflow">case</span> PROP_SHOW_MASKED:
<a name="l01041"></a>01041 <span class="keyword">property</span> >> layer.mask_channel.show_masked;
<a name="l01042"></a>01042 <span class="keywordflow">break</span>;
<a name="l01043"></a>01043
<a name="l01044"></a>01044 <span class="keywordflow">case</span> PROP_COLOR:
<a name="l01045"></a>01045 <span class="keyword">property</span> >> layer.mask_channel.red >> layer.mask_channel.green
<a name="l01046"></a>01046 >> layer.mask_channel.blue;
<a name="l01047"></a>01047 <span class="keywordflow">break</span>;
<a name="l01048"></a>01048
<a name="l01049"></a>01049 <span class="keywordflow">case</span> PROP_TATTOO:
<a name="l01050"></a>01050 <span class="keyword">property</span> >> layer.mask_channel.tattoo;
<a name="l01051"></a>01051 <span class="keywordflow">break</span>;
<a name="l01052"></a>01052
<a name="l01053"></a>01053 <span class="keywordflow">default</span>:
<a name="l01054"></a>01054 kdDebug(399) << <span class="stringliteral">"XCF: unimplemented channel property "</span> << type
<a name="l01055"></a>01055 << <span class="stringliteral">", size "</span> << bytes.size() << endl;
<a name="l01056"></a>01056 }
<a name="l01057"></a>01057 }
<a name="l01058"></a>01058 }
<a name="l01059"></a>01059
<a name="l01060"></a>01060
<a name="l01067"></a>01067 <span class="keywordtype">void</span> XCFImageFormat::assignMaskBytes(Layer& layer, uint i, uint j)
<a name="l01068"></a>01068 {
<a name="l01069"></a>01069 uchar* tile = layer.tile;
<a name="l01070"></a>01070
<a name="l01071"></a>01071 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> l = 0; l < layer.image_tiles[j][i].height(); l++) {
<a name="l01072"></a>01072 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> k = 0; k < layer.image_tiles[j][i].width(); k++) {
<a name="l01073"></a>01073 layer.mask_tiles[j][i].setPixel(k, l, tile[0]);
<a name="l01074"></a>01074 tile += <span class="keyword">sizeof</span>(QRgb);
<a name="l01075"></a>01075 }
<a name="l01076"></a>01076 }
<a name="l01077"></a>01077 }
<a name="l01078"></a>01078
<a name="l01079"></a>01079
<a name="l01108"></a>01108 <span class="keywordtype">bool</span> XCFImageFormat::initializeImage(XCFImage& xcf_image)
<a name="l01109"></a>01109 {
<a name="l01110"></a>01110 <span class="comment">// (Aliases to make the code look a little better.)</span>
<a name="l01111"></a>01111 Layer& layer(xcf_image.layer);
<a name="l01112"></a>01112 <a class="codeRef" href="qimage.html">QImage</a>& <a class="codeRef" href="qimageio.html#image">image</a>(xcf_image.image);
<a name="l01113"></a>01113
<a name="l01114"></a>01114 <span class="keywordflow">switch</span> (layer.type) {
<a name="l01115"></a>01115 <span class="keywordflow">case</span> RGB_GIMAGE:
<a name="l01116"></a>01116 <span class="keywordflow">if</span> (layer.opacity == OPAQUE_OPACITY) {
<a name="l01117"></a>01117 image.<a class="codeRef" href="qimage.html#create">create</a>( xcf_image.width, xcf_image.height, 32);
<a name="l01118"></a>01118 <span class="keywordflow">if</span>( image.<a class="codeRef" href="qimage.html#isNull">isNull</a>())
<a name="l01119"></a>01119 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l01120"></a>01120 image.<a class="codeRef" href="qimage.html#fill">fill</a>(qRgb(255, 255, 255));
<a name="l01121"></a>01121 <span class="keywordflow">break</span>;
<a name="l01122"></a>01122 } <span class="comment">// else, fall through to 32-bit representation</span>
<a name="l01123"></a>01123
<a name="l01124"></a>01124 <span class="keywordflow">case</span> RGBA_GIMAGE:
<a name="l01125"></a>01125 image.<a class="codeRef" href="qimage.html#create">create</a>(xcf_image.width, xcf_image.height, 32);
<a name="l01126"></a>01126 <span class="keywordflow">if</span>( image.<a class="codeRef" href="qimage.html#isNull">isNull</a>())
<a name="l01127"></a>01127 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l01128"></a>01128 image.<a class="codeRef" href="qimage.html#fill">fill</a>(qRgba(255, 255, 255, 0));
<a name="l01129"></a>01129 <span class="comment">// Turning this on prevents fill() from affecting the alpha channel,</span>
<a name="l01130"></a>01130 <span class="comment">// by the way.</span>
<a name="l01131"></a>01131 image.<a class="codeRef" href="qimage.html#setAlphaBuffer">setAlphaBuffer</a>(<span class="keyword">true</span>);
<a name="l01132"></a>01132 <span class="keywordflow">break</span>;
<a name="l01133"></a>01133
<a name="l01134"></a>01134 <span class="keywordflow">case</span> GRAY_GIMAGE:
<a name="l01135"></a>01135 <span class="keywordflow">if</span> (layer.opacity == OPAQUE_OPACITY) {
<a name="l01136"></a>01136 image.<a class="codeRef" href="qimage.html#create">create</a>(xcf_image.width, xcf_image.height, 8, 256);
<a name="l01137"></a>01137 <span class="keywordflow">if</span>( image.<a class="codeRef" href="qimage.html#isNull">isNull</a>())
<a name="l01138"></a>01138 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l01139"></a>01139 setGrayPalette(image);
<a name="l01140"></a>01140 image.<a class="codeRef" href="qimage.html#fill">fill</a>(255);
<a name="l01141"></a>01141 <span class="keywordflow">break</span>;
<a name="l01142"></a>01142 } <span class="comment">// else, fall through to 32-bit representation</span>
<a name="l01143"></a>01143
<a name="l01144"></a>01144 <span class="keywordflow">case</span> GRAYA_GIMAGE:
<a name="l01145"></a>01145 image.<a class="codeRef" href="qimage.html#create">create</a>(xcf_image.width, xcf_image.height, 32);
<a name="l01146"></a>01146 <span class="keywordflow">if</span>( image.<a class="codeRef" href="qimage.html#isNull">isNull</a>())
<a name="l01147"></a>01147 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l01148"></a>01148 image.<a class="codeRef" href="qimage.html#fill">fill</a>(qRgba(255, 255, 255, 0));
<a name="l01149"></a>01149 image.<a class="codeRef" href="qimage.html#setAlphaBuffer">setAlphaBuffer</a>(<span class="keyword">true</span>);
<a name="l01150"></a>01150 <span class="keywordflow">break</span>;
<a name="l01151"></a>01151
<a name="l01152"></a>01152 <span class="keywordflow">case</span> INDEXED_GIMAGE:
<a name="l01153"></a>01153 <span class="comment">// As noted in the table above, there are quite a few combinations</span>
<a name="l01154"></a>01154 <span class="comment">// which are possible with indexed images, depending on the</span>
<a name="l01155"></a>01155 <span class="comment">// presense of transparency (note: not translucency, which is not</span>
<a name="l01156"></a>01156 <span class="comment">// supported by The GIMP for indexed images) and the number of</span>
<a name="l01157"></a>01157 <span class="comment">// individual colors.</span>
<a name="l01158"></a>01158
<a name="l01159"></a>01159 <span class="comment">// Note: Qt treats a bitmap with a Black and White color palette</span>
<a name="l01160"></a>01160 <span class="comment">// as a mask, so only the "on" bits are drawn, regardless of the</span>
<a name="l01161"></a>01161 <span class="comment">// order color table entries. Otherwise (i.e., at least one of the</span>
<a name="l01162"></a>01162 <span class="comment">// color table entries is not black or white), it obeys the one-</span>
<a name="l01163"></a>01163 <span class="comment">// or two-color palette. Have to ask about this...</span>
<a name="l01164"></a>01164
<a name="l01165"></a>01165 <span class="keywordflow">if</span> (xcf_image.num_colors <= 2) {
<a name="l01166"></a>01166 image.<a class="codeRef" href="qimage.html#create">create</a>(xcf_image.width, xcf_image.height,
<a name="l01167"></a>01167 1, xcf_image.num_colors,
<a name="l01168"></a>01168 QImage::LittleEndian);
<a name="l01169"></a>01169 <span class="keywordflow">if</span>( image.<a class="codeRef" href="qimage.html#isNull">isNull</a>())
<a name="l01170"></a>01170 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l01171"></a>01171 image.<a class="codeRef" href="qimage.html#fill">fill</a>(0);
<a name="l01172"></a>01172 setPalette(xcf_image, image);
<a name="l01173"></a>01173 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (xcf_image.num_colors <= 256) {
<a name="l01174"></a>01174 image.<a class="codeRef" href="qimage.html#create">create</a>(xcf_image.width, xcf_image.height,
<a name="l01175"></a>01175 8, xcf_image.num_colors,
<a name="l01176"></a>01176 QImage::LittleEndian);
<a name="l01177"></a>01177 <span class="keywordflow">if</span>( image.<a class="codeRef" href="qimage.html#isNull">isNull</a>())
<a name="l01178"></a>01178 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l01179"></a>01179 image.<a class="codeRef" href="qimage.html#fill">fill</a>(0);
<a name="l01180"></a>01180 setPalette(xcf_image, image);
<a name="l01181"></a>01181 }
<a name="l01182"></a>01182 <span class="keywordflow">break</span>;
<a name="l01183"></a>01183
<a name="l01184"></a>01184 <span class="keywordflow">case</span> INDEXEDA_GIMAGE:
<a name="l01185"></a>01185 <span class="keywordflow">if</span> (xcf_image.num_colors == 1) {
<a name="l01186"></a>01186 <span class="comment">// Plenty(!) of room to add a transparent color</span>
<a name="l01187"></a>01187 xcf_image.num_colors++;
<a name="l01188"></a>01188 xcf_image.palette.resize(xcf_image.num_colors);
<a name="l01189"></a>01189 xcf_image.palette[1] = xcf_image.palette[0];
<a name="l01190"></a>01190 xcf_image.palette[0] = qRgba(255, 255, 255, 0);
<a name="l01191"></a>01191
<a name="l01192"></a>01192 image.<a class="codeRef" href="qimage.html#create">create</a>(xcf_image.width, xcf_image.height,
<a name="l01193"></a>01193 1, xcf_image.num_colors,
<a name="l01194"></a>01194 QImage::LittleEndian);
<a name="l01195"></a>01195 <span class="keywordflow">if</span>( image.<a class="codeRef" href="qimage.html#isNull">isNull</a>())
<a name="l01196"></a>01196 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l01197"></a>01197 image.<a class="codeRef" href="qimage.html#fill">fill</a>(0);
<a name="l01198"></a>01198 setPalette(xcf_image, image);
<a name="l01199"></a>01199 image.<a class="codeRef" href="qimage.html#setAlphaBuffer">setAlphaBuffer</a>(<span class="keyword">true</span>);
<a name="l01200"></a>01200 } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (xcf_image.num_colors < 256) {
<a name="l01201"></a>01201 <span class="comment">// Plenty of room to add a transparent color</span>
<a name="l01202"></a>01202 xcf_image.num_colors++;
<a name="l01203"></a>01203 xcf_image.palette.resize(xcf_image.num_colors);
<a name="l01204"></a>01204 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> c = xcf_image.num_colors - 1; c >= 1; c--)
<a name="l01205"></a>01205 xcf_image.palette[c] = xcf_image.palette[c - 1];
<a name="l01206"></a>01206
<a name="l01207"></a>01207 xcf_image.palette[0] = qRgba(255, 255, 255, 0);
<a name="l01208"></a>01208 image.<a class="codeRef" href="qimage.html#create">create</a>( xcf_image.width, xcf_image.height,
<a name="l01209"></a>01209 8, xcf_image.num_colors);
<a name="l01210"></a>01210 <span class="keywordflow">if</span>( image.<a class="codeRef" href="qimage.html#isNull">isNull</a>())
<a name="l01211"></a>01211 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l01212"></a>01212 image.<a class="codeRef" href="qimage.html#fill">fill</a>(0);
<a name="l01213"></a>01213 setPalette(xcf_image, image);
<a name="l01214"></a>01214 image.<a class="codeRef" href="qimage.html#setAlphaBuffer">setAlphaBuffer</a>(<span class="keyword">true</span>);
<a name="l01215"></a>01215 } <span class="keywordflow">else</span> {
<a name="l01216"></a>01216 <span class="comment">// No room for a transparent color, so this has to be promoted to</span>
<a name="l01217"></a>01217 <span class="comment">// true color. (There is no equivalent PNG representation output</span>
<a name="l01218"></a>01218 <span class="comment">// from The GIMP as of v1.2.)</span>
<a name="l01219"></a>01219 image.<a class="codeRef" href="qimage.html#create">create</a>(xcf_image.width, xcf_image.height, 32);
<a name="l01220"></a>01220 <span class="keywordflow">if</span>( image.<a class="codeRef" href="qimage.html#isNull">isNull</a>())
<a name="l01221"></a>01221 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l01222"></a>01222 image.<a class="codeRef" href="qimage.html#fill">fill</a>(qRgba(255, 255, 255, 0));
<a name="l01223"></a>01223 image.<a class="codeRef" href="qimage.html#setAlphaBuffer">setAlphaBuffer</a>(<span class="keyword">true</span>);
<a name="l01224"></a>01224 }
<a name="l01225"></a>01225 <span class="keywordflow">break</span>;
<a name="l01226"></a>01226 }
<a name="l01227"></a>01227
<a name="l01228"></a>01228 image.<a class="codeRef" href="qimage.html#setDotsPerMeterX">setDotsPerMeterX</a>((<span class="keywordtype">int</span>)(xcf_image.x_resolution * INCHESPERMETER));
<a name="l01229"></a>01229 image.<a class="codeRef" href="qimage.html#setDotsPerMeterY">setDotsPerMeterY</a>((<span class="keywordtype">int</span>)(xcf_image.y_resolution * INCHESPERMETER));
<a name="l01230"></a>01230 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l01231"></a>01231 }
<a name="l01232"></a>01232
<a name="l01233"></a>01233
<a name="l01239"></a>01239 <span class="keywordtype">void</span> XCFImageFormat::copyLayerToImage(XCFImage& xcf_image)
<a name="l01240"></a>01240 {
<a name="l01241"></a>01241 Layer& layer(xcf_image.layer);
<a name="l01242"></a>01242 <a class="codeRef" href="qimage.html">QImage</a>& <a class="codeRef" href="qimageio.html#image">image</a>(xcf_image.image);
<a name="l01243"></a>01243 PixelCopyOperation copy = 0;
<a name="l01244"></a>01244
<a name="l01245"></a>01245 <span class="keywordflow">switch</span> (layer.type) {
<a name="l01246"></a>01246 <span class="keywordflow">case</span> RGB_GIMAGE:
<a name="l01247"></a>01247 <span class="keywordflow">case</span> RGBA_GIMAGE:
<a name="l01248"></a>01248 copy = copyRGBToRGB;
<a name="l01249"></a>01249 <span class="keywordflow">break</span>;
<a name="l01250"></a>01250 <span class="keywordflow">case</span> GRAY_GIMAGE:
<a name="l01251"></a>01251 <span class="keywordflow">if</span> (layer.opacity == OPAQUE_OPACITY)
<a name="l01252"></a>01252 copy = copyGrayToGray;
<a name="l01253"></a>01253 <span class="keywordflow">else</span>
<a name="l01254"></a>01254 copy = copyGrayToRGB;
<a name="l01255"></a>01255 <span class="keywordflow">break</span>;
<a name="l01256"></a>01256 <span class="keywordflow">case</span> GRAYA_GIMAGE:
<a name="l01257"></a>01257 copy = copyGrayAToRGB;
<a name="l01258"></a>01258 <span class="keywordflow">break</span>;
<a name="l01259"></a>01259 <span class="keywordflow">case</span> INDEXED_GIMAGE:
<a name="l01260"></a>01260 copy = copyIndexedToIndexed;
<a name="l01261"></a>01261 <span class="keywordflow">break</span>;
<a name="l01262"></a>01262 <span class="keywordflow">case</span> INDEXEDA_GIMAGE:
<a name="l01263"></a>01263 <span class="keywordflow">if</span> (xcf_image.image.depth() <= 8)
<a name="l01264"></a>01264 copy = copyIndexedAToIndexed;
<a name="l01265"></a>01265 <span class="keywordflow">else</span>
<a name="l01266"></a>01266 copy = copyIndexedAToRGB;
<a name="l01267"></a>01267 }
<a name="l01268"></a>01268
<a name="l01269"></a>01269 <span class="comment">// For each tile...</span>
<a name="l01270"></a>01270
<a name="l01271"></a>01271 <span class="keywordflow">for</span> (uint j = 0; j < layer.nrows; j++) {
<a name="l01272"></a>01272 uint y = j * TILE_HEIGHT;
<a name="l01273"></a>01273
<a name="l01274"></a>01274 <span class="keywordflow">for</span> (uint i = 0; i < layer.ncols; i++) {
<a name="l01275"></a>01275 uint x = i * TILE_WIDTH;
<a name="l01276"></a>01276
<a name="l01277"></a>01277 <span class="comment">// This seems the best place to apply the dissolve because it</span>
<a name="l01278"></a>01278 <span class="comment">// depends on the global position of each tile's</span>
<a name="l01279"></a>01279 <span class="comment">// pixels. Apparently it's the only mode which can apply to a</span>
<a name="l01280"></a>01280 <span class="comment">// single layer.</span>
<a name="l01281"></a>01281
<a name="l01282"></a>01282 <span class="keywordflow">if</span> (layer.mode == DISSOLVE_MODE) {
<a name="l01283"></a>01283 <span class="keywordflow">if</span> (layer.type == RGBA_GIMAGE)
<a name="l01284"></a>01284 dissolveRGBPixels(layer.image_tiles[j][i], x, y);
<a name="l01285"></a>01285
<a name="l01286"></a>01286 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (layer.type == GRAYA_GIMAGE)
<a name="l01287"></a>01287 dissolveAlphaPixels(layer.alpha_tiles[j][i], x, y);
<a name="l01288"></a>01288 }
<a name="l01289"></a>01289
<a name="l01290"></a>01290 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> l = 0; l < layer.image_tiles[j][i].height(); l++) {
<a name="l01291"></a>01291 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> k = 0; k < layer.image_tiles[j][i].width(); k++) {
<a name="l01292"></a>01292
<a name="l01293"></a>01293 <span class="keywordtype">int</span> m = x + k + layer.x_offset;
<a name="l01294"></a>01294 <span class="keywordtype">int</span> n = y + l + layer.y_offset;
<a name="l01295"></a>01295
<a name="l01296"></a>01296 <span class="keywordflow">if</span> (m < 0 || m >= image.<a class="codeRef" href="qimage.html#width">width</a>() || n < 0 || n >= image.<a class="codeRef" href="qimage.html#height">height</a>())
<a name="l01297"></a>01297 <span class="keywordflow">continue</span>;
<a name="l01298"></a>01298
<a name="l01299"></a>01299 (*copy)(layer, i, j, k, l, <a class="codeRef" href="qimageio.html#image">image</a>, m, n);
<a name="l01300"></a>01300 }
<a name="l01301"></a>01301 }
<a name="l01302"></a>01302 }
<a name="l01303"></a>01303 }
<a name="l01304"></a>01304 }
<a name="l01305"></a>01305
<a name="l01306"></a>01306
<a name="l01320"></a>01320 <span class="keywordtype">void</span> XCFImageFormat::copyRGBToRGB(Layer& layer, uint i, uint j, <span class="keywordtype">int</span> k, <span class="keywordtype">int</span> l,
<a name="l01321"></a>01321 <a class="codeRef" href="qimage.html">QImage</a>& image, <span class="keywordtype">int</span> m, <span class="keywordtype">int</span> n)
<a name="l01322"></a>01322 {
<a name="l01323"></a>01323 QRgb src = layer.image_tiles[j][i].pixel(k, l);
<a name="l01324"></a>01324 uchar src_a = layer.opacity;
<a name="l01325"></a>01325
<a name="l01326"></a>01326 <span class="keywordflow">if</span> (layer.type == RGBA_GIMAGE)
<a name="l01327"></a>01327 src_a = INT_MULT(src_a, qAlpha(src));
<a name="l01328"></a>01328
<a name="l01329"></a>01329 <span class="comment">// Apply the mask (if any)</span>
<a name="l01330"></a>01330
<a name="l01331"></a>01331 <span class="keywordflow">if</span> (layer.apply_mask == 1 && layer.mask_tiles.size() > j &&
<a name="l01332"></a>01332 layer.mask_tiles[j].size() > i)
<a name="l01333"></a>01333 src_a = INT_MULT(src_a, layer.mask_tiles[j][i].pixelIndex(k, l));
<a name="l01334"></a>01334
<a name="l01335"></a>01335 image.<a class="codeRef" href="qimage.html#setPixel">setPixel</a>(m, n, qRgba(src, src_a));
<a name="l01336"></a>01336 }
<a name="l01337"></a>01337
<a name="l01338"></a>01338
<a name="l01350"></a>01350 <span class="keywordtype">void</span> XCFImageFormat::copyGrayToGray(Layer& layer, uint i, uint j, <span class="keywordtype">int</span> k, <span class="keywordtype">int</span> l,
<a name="l01351"></a>01351 <a class="codeRef" href="qimage.html">QImage</a>& image, <span class="keywordtype">int</span> m, <span class="keywordtype">int</span> n)
<a name="l01352"></a>01352 {
<a name="l01353"></a>01353 <span class="keywordtype">int</span> src = layer.image_tiles[j][i].pixelIndex(k, l);
<a name="l01354"></a>01354 image.<a class="codeRef" href="qimage.html#setPixel">setPixel</a>(m, n, src);
<a name="l01355"></a>01355 }
<a name="l01356"></a>01356
<a name="l01357"></a>01357
<a name="l01371"></a>01371 <span class="keywordtype">void</span> XCFImageFormat::copyGrayToRGB(Layer& layer, uint i, uint j, <span class="keywordtype">int</span> k, <span class="keywordtype">int</span> l,
<a name="l01372"></a>01372 <a class="codeRef" href="qimage.html">QImage</a>& image, <span class="keywordtype">int</span> m, <span class="keywordtype">int</span> n)
<a name="l01373"></a>01373 {
<a name="l01374"></a>01374 QRgb src = layer.image_tiles[j][i].pixel(k, l);
<a name="l01375"></a>01375 uchar src_a = layer.opacity;
<a name="l01376"></a>01376 image.<a class="codeRef" href="qimage.html#setPixel">setPixel</a>(m, n, qRgba(src, src_a));
<a name="l01377"></a>01377 }
<a name="l01378"></a>01378
<a name="l01379"></a>01379
<a name="l01393"></a>01393 <span class="keywordtype">void</span> XCFImageFormat::copyGrayAToRGB(Layer& layer, uint i, uint j, <span class="keywordtype">int</span> k, <span class="keywordtype">int</span> l,
<a name="l01394"></a>01394 <a class="codeRef" href="qimage.html">QImage</a>& image, <span class="keywordtype">int</span> m, <span class="keywordtype">int</span> n)
<a name="l01395"></a>01395 {
<a name="l01396"></a>01396 QRgb src = layer.image_tiles[j][i].pixel(k, l);
<a name="l01397"></a>01397 uchar src_a = layer.alpha_tiles[j][i].pixelIndex(k, l);
<a name="l01398"></a>01398 src_a = INT_MULT(src_a, layer.opacity);
<a name="l01399"></a>01399
<a name="l01400"></a>01400 <span class="comment">// Apply the mask (if any)</span>
<a name="l01401"></a>01401
<a name="l01402"></a>01402 <span class="keywordflow">if</span> (layer.apply_mask == 1 && layer.mask_tiles.size() > j &&
<a name="l01403"></a>01403 layer.mask_tiles[j].size() > i)
<a name="l01404"></a>01404 src_a = INT_MULT(src_a, layer.mask_tiles[j][i].pixelIndex(k, l));
<a name="l01405"></a>01405
<a name="l01406"></a>01406 image.<a class="codeRef" href="qimage.html#setPixel">setPixel</a>(m, n, qRgba(src, src_a));
<a name="l01407"></a>01407 }
<a name="l01408"></a>01408
<a name="l01409"></a>01409
<a name="l01421"></a>01421 <span class="keywordtype">void</span> XCFImageFormat::copyIndexedToIndexed(Layer& layer, uint i, uint j, <span class="keywordtype">int</span> k, <span class="keywordtype">int</span> l,
<a name="l01422"></a>01422 <a class="codeRef" href="qimage.html">QImage</a>& image, <span class="keywordtype">int</span> m, <span class="keywordtype">int</span> n)
<a name="l01423"></a>01423 {
<a name="l01424"></a>01424 <span class="keywordtype">int</span> src = layer.image_tiles[j][i].pixelIndex(k, l);
<a name="l01425"></a>01425 image.<a class="codeRef" href="qimage.html#setPixel">setPixel</a>(m, n, src);
<a name="l01426"></a>01426 }
<a name="l01427"></a>01427
<a name="l01428"></a>01428
<a name="l01440"></a>01440 <span class="keywordtype">void</span> XCFImageFormat::copyIndexedAToIndexed(Layer& layer, uint i, uint j, <span class="keywordtype">int</span> k, <span class="keywordtype">int</span> l,
<a name="l01441"></a>01441 <a class="codeRef" href="qimage.html">QImage</a>& image, <span class="keywordtype">int</span> m, <span class="keywordtype">int</span> n)
<a name="l01442"></a>01442 {
<a name="l01443"></a>01443 uchar src = layer.image_tiles[j][i].pixelIndex(k, l);
<a name="l01444"></a>01444 uchar src_a = layer.alpha_tiles[j][i].pixelIndex(k, l);
<a name="l01445"></a>01445 src_a = INT_MULT(src_a, layer.opacity);
<a name="l01446"></a>01446
<a name="l01447"></a>01447 <span class="keywordflow">if</span> (layer.apply_mask == 1 &&
<a name="l01448"></a>01448 layer.mask_tiles.size() > j &&
<a name="l01449"></a>01449 layer.mask_tiles[j].size() > i)
<a name="l01450"></a>01450 src_a = INT_MULT(src_a, layer.mask_tiles[j][i].pixelIndex(k, l));
<a name="l01451"></a>01451
<a name="l01452"></a>01452 <span class="keywordflow">if</span> (src_a > 127)
<a name="l01453"></a>01453 src++;
<a name="l01454"></a>01454 <span class="keywordflow">else</span>
<a name="l01455"></a>01455 src = 0;
<a name="l01456"></a>01456
<a name="l01457"></a>01457 image.<a class="codeRef" href="qimage.html#setPixel">setPixel</a>(m, n, src);
<a name="l01458"></a>01458 }
<a name="l01459"></a>01459
<a name="l01460"></a>01460
<a name="l01474"></a>01474 <span class="keywordtype">void</span> XCFImageFormat::copyIndexedAToRGB(Layer& layer, uint i, uint j, <span class="keywordtype">int</span> k, <span class="keywordtype">int</span> l,
<a name="l01475"></a>01475 <a class="codeRef" href="qimage.html">QImage</a>& image, <span class="keywordtype">int</span> m, <span class="keywordtype">int</span> n)
<a name="l01476"></a>01476 {
<a name="l01477"></a>01477 QRgb src = layer.image_tiles[j][i].pixel(k, l);
<a name="l01478"></a>01478 uchar src_a = layer.alpha_tiles[j][i].pixelIndex(k, l);
<a name="l01479"></a>01479 src_a = INT_MULT(src_a, layer.opacity);
<a name="l01480"></a>01480
<a name="l01481"></a>01481 <span class="comment">// Apply the mask (if any)</span>
<a name="l01482"></a>01482 <span class="keywordflow">if</span> (layer.apply_mask == 1 && layer.mask_tiles.size() > j &&
<a name="l01483"></a>01483 layer.mask_tiles[j].size() > i)
<a name="l01484"></a>01484 src_a = INT_MULT(src_a, layer.mask_tiles[j][i].pixelIndex(k, l));
<a name="l01485"></a>01485
<a name="l01486"></a>01486 <span class="comment">// This is what appears in the GIMP window</span>
<a name="l01487"></a>01487 <span class="keywordflow">if</span> (src_a <= 127)
<a name="l01488"></a>01488 src_a = 0;
<a name="l01489"></a>01489 <span class="keywordflow">else</span>
<a name="l01490"></a>01490 src_a = OPAQUE_OPACITY;
<a name="l01491"></a>01491
<a name="l01492"></a>01492 image.<a class="codeRef" href="qimage.html#setPixel">setPixel</a>(m, n, qRgba(src, src_a));
<a name="l01493"></a>01493 }
<a name="l01494"></a>01494
<a name="l01495"></a>01495
<a name="l01500"></a>01500 <span class="keywordtype">void</span> XCFImageFormat::mergeLayerIntoImage(XCFImage& xcf_image)
<a name="l01501"></a>01501 {
<a name="l01502"></a>01502 Layer& layer(xcf_image.layer);
<a name="l01503"></a>01503 <a class="codeRef" href="qimage.html">QImage</a>& <a class="codeRef" href="qimageio.html#image">image</a>(xcf_image.image);
<a name="l01504"></a>01504
<a name="l01505"></a>01505 PixelMergeOperation merge = 0;
<a name="l01506"></a>01506
<a name="l01507"></a>01507 <span class="keywordflow">switch</span> (layer.type) {
<a name="l01508"></a>01508 <span class="keywordflow">case</span> RGB_GIMAGE:
<a name="l01509"></a>01509 <span class="keywordflow">case</span> RGBA_GIMAGE:
<a name="l01510"></a>01510 merge = mergeRGBToRGB;
<a name="l01511"></a>01511 <span class="keywordflow">break</span>;
<a name="l01512"></a>01512 <span class="keywordflow">case</span> GRAY_GIMAGE:
<a name="l01513"></a>01513 <span class="keywordflow">if</span> (layer.opacity == OPAQUE_OPACITY)
<a name="l01514"></a>01514 merge = mergeGrayToGray;
<a name="l01515"></a>01515 <span class="keywordflow">else</span>
<a name="l01516"></a>01516 merge = mergeGrayToRGB;
<a name="l01517"></a>01517 <span class="keywordflow">break</span>;
<a name="l01518"></a>01518 <span class="keywordflow">case</span> GRAYA_GIMAGE:
<a name="l01519"></a>01519 <span class="keywordflow">if</span> (xcf_image.image.depth() <= 8)
<a name="l01520"></a>01520 merge = mergeGrayAToGray;
<a name="l01521"></a>01521 <span class="keywordflow">else</span>
<a name="l01522"></a>01522 merge = mergeGrayAToRGB;
<a name="l01523"></a>01523 <span class="keywordflow">break</span>;
<a name="l01524"></a>01524 <span class="keywordflow">case</span> INDEXED_GIMAGE:
<a name="l01525"></a>01525 merge = mergeIndexedToIndexed;
<a name="l01526"></a>01526 <span class="keywordflow">break</span>;
<a name="l01527"></a>01527 <span class="keywordflow">case</span> INDEXEDA_GIMAGE:
<a name="l01528"></a>01528 <span class="keywordflow">if</span> (xcf_image.image.depth() <= 8)
<a name="l01529"></a>01529 merge = mergeIndexedAToIndexed;
<a name="l01530"></a>01530 <span class="keywordflow">else</span>
<a name="l01531"></a>01531 merge = mergeIndexedAToRGB;
<a name="l01532"></a>01532 }
<a name="l01533"></a>01533
<a name="l01534"></a>01534 <span class="keywordflow">for</span> (uint j = 0; j < layer.nrows; j++) {
<a name="l01535"></a>01535 uint y = j * TILE_HEIGHT;
<a name="l01536"></a>01536
<a name="l01537"></a>01537 <span class="keywordflow">for</span> (uint i = 0; i < layer.ncols; i++) {
<a name="l01538"></a>01538 uint x = i * TILE_WIDTH;
<a name="l01539"></a>01539
<a name="l01540"></a>01540 <span class="comment">// This seems the best place to apply the dissolve because it</span>
<a name="l01541"></a>01541 <span class="comment">// depends on the global position of each tile's</span>
<a name="l01542"></a>01542 <span class="comment">// pixels. Apparently it's the only mode which can apply to a</span>
<a name="l01543"></a>01543 <span class="comment">// single layer.</span>
<a name="l01544"></a>01544
<a name="l01545"></a>01545 <span class="keywordflow">if</span> (layer.mode == DISSOLVE_MODE) {
<a name="l01546"></a>01546 <span class="keywordflow">if</span> (layer.type == RGBA_GIMAGE)
<a name="l01547"></a>01547 dissolveRGBPixels(layer.image_tiles[j][i], x, y);
<a name="l01548"></a>01548
<a name="l01549"></a>01549 <span class="keywordflow">else</span> <span class="keywordflow">if</span> (layer.type == GRAYA_GIMAGE)
<a name="l01550"></a>01550 dissolveAlphaPixels(layer.alpha_tiles[j][i], x, y);
<a name="l01551"></a>01551 }
<a name="l01552"></a>01552
<a name="l01553"></a>01553 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> l = 0; l < layer.image_tiles[j][i].height(); l++) {
<a name="l01554"></a>01554 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> k = 0; k < layer.image_tiles[j][i].width(); k++) {
<a name="l01555"></a>01555
<a name="l01556"></a>01556 <span class="keywordtype">int</span> m = x + k + layer.x_offset;
<a name="l01557"></a>01557 <span class="keywordtype">int</span> n = y + l + layer.y_offset;
<a name="l01558"></a>01558
<a name="l01559"></a>01559 <span class="keywordflow">if</span> (m < 0 || m >= image.<a class="codeRef" href="qimage.html#width">width</a>() || n < 0 || n >= image.<a class="codeRef" href="qimage.html#height">height</a>())
<a name="l01560"></a>01560 <span class="keywordflow">continue</span>;
<a name="l01561"></a>01561
<a name="l01562"></a>01562 (*merge)(layer, i, j, k, l, <a class="codeRef" href="qimageio.html#image">image</a>, m, n);
<a name="l01563"></a>01563 }
<a name="l01564"></a>01564 }
<a name="l01565"></a>01565 }
<a name="l01566"></a>01566 }
<a name="l01567"></a>01567 }
<a name="l01568"></a>01568
<a name="l01569"></a>01569
<a name="l01583"></a>01583 <span class="keywordtype">void</span> XCFImageFormat::mergeRGBToRGB(Layer& layer, uint i, uint j, <span class="keywordtype">int</span> k, <span class="keywordtype">int</span> l,
<a name="l01584"></a>01584 <a class="codeRef" href="qimage.html">QImage</a>& image, <span class="keywordtype">int</span> m, <span class="keywordtype">int</span> n)
<a name="l01585"></a>01585 {
<a name="l01586"></a>01586 QRgb src = layer.image_tiles[j][i].pixel(k, l);
<a name="l01587"></a>01587 QRgb dst = image.<a class="codeRef" href="qimage.html#pixel">pixel</a>(m, n);
<a name="l01588"></a>01588
<a name="l01589"></a>01589 uchar src_r = qRed(src);
<a name="l01590"></a>01590 uchar src_g = qGreen(src);
<a name="l01591"></a>01591 uchar src_b = qBlue(src);
<a name="l01592"></a>01592 uchar src_a = qAlpha(src);
<a name="l01593"></a>01593
<a name="l01594"></a>01594 uchar dst_r = qRed(dst);
<a name="l01595"></a>01595 uchar dst_g = qGreen(dst);
<a name="l01596"></a>01596 uchar dst_b = qBlue(dst);
<a name="l01597"></a>01597 uchar dst_a = qAlpha(dst);
<a name="l01598"></a>01598
<a name="l01599"></a>01599 <span class="keywordflow">switch</span> (layer.mode) {
<a name="l01600"></a>01600 <span class="keywordflow">case</span> MULTIPLY_MODE: {
<a name="l01601"></a>01601 src_r = INT_MULT(src_r, dst_r);
<a name="l01602"></a>01602 src_g = INT_MULT(src_g, dst_g);
<a name="l01603"></a>01603 src_b = INT_MULT(src_b, dst_b);
<a name="l01604"></a>01604 src_a = KMIN(src_a, dst_a);
<a name="l01605"></a>01605 }
<a name="l01606"></a>01606 <span class="keywordflow">break</span>;
<a name="l01607"></a>01607 <span class="keywordflow">case</span> DIVIDE_MODE: {
<a name="l01608"></a>01608 src_r = KMIN((dst_r * 256) / (1 + src_r), 255);
<a name="l01609"></a>01609 src_g = KMIN((dst_g * 256) / (1 + src_g), 255);
<a name="l01610"></a>01610 src_b = KMIN((dst_b * 256) / (1 + src_b), 255);
<a name="l01611"></a>01611 src_a = KMIN(src_a, dst_a);
<a name="l01612"></a>01612 }
<a name="l01613"></a>01613 <span class="keywordflow">break</span>;
<a name="l01614"></a>01614 <span class="keywordflow">case</span> SCREEN_MODE: {
<a name="l01615"></a>01615 src_r = 255 - INT_MULT(255 - dst_r, 255 - src_r);
<a name="l01616"></a>01616 src_g = 255 - INT_MULT(255 - dst_g, 255 - src_g);
<a name="l01617"></a>01617 src_b = 255 - INT_MULT(255 - dst_b, 255 - src_b);
<a name="l01618"></a>01618 src_a = KMIN(src_a, dst_a);
<a name="l01619"></a>01619 }
<a name="l01620"></a>01620 <span class="keywordflow">break</span>;
<a name="l01621"></a>01621 <span class="keywordflow">case</span> OVERLAY_MODE: {
<a name="l01622"></a>01622 src_r = INT_MULT(dst_r, dst_r + INT_MULT(2 * src_r, 255 - dst_r));
<a name="l01623"></a>01623 src_g = INT_MULT(dst_g, dst_g + INT_MULT(2 * src_g, 255 - dst_g));
<a name="l01624"></a>01624 src_b = INT_MULT(dst_b, dst_b + INT_MULT(2 * src_b, 255 - dst_b));
<a name="l01625"></a>01625 src_a = KMIN(src_a, dst_a);
<a name="l01626"></a>01626 }
<a name="l01627"></a>01627 <span class="keywordflow">break</span>;
<a name="l01628"></a>01628 <span class="keywordflow">case</span> DIFFERENCE_MODE: {
<a name="l01629"></a>01629 src_r = dst_r > src_r ? dst_r - src_r : src_r - dst_r;
<a name="l01630"></a>01630 src_g = dst_g > src_g ? dst_g - src_g : src_g - dst_g;
<a name="l01631"></a>01631 src_b = dst_b > src_b ? dst_b - src_b : src_b - dst_b;
<a name="l01632"></a>01632 src_a = KMIN(src_a, dst_a);
<a name="l01633"></a>01633 }
<a name="l01634"></a>01634 <span class="keywordflow">break</span>;
<a name="l01635"></a>01635 <span class="keywordflow">case</span> ADDITION_MODE: {
<a name="l01636"></a>01636 src_r = add_lut(dst_r,src_r);
<a name="l01637"></a>01637 src_g = add_lut(dst_g,src_g);
<a name="l01638"></a>01638 src_b = add_lut(dst_b,src_b);
<a name="l01639"></a>01639 src_a = KMIN(src_a, dst_a);
<a name="l01640"></a>01640 }
<a name="l01641"></a>01641 <span class="keywordflow">break</span>;
<a name="l01642"></a>01642 <span class="keywordflow">case</span> SUBTRACT_MODE: {
<a name="l01643"></a>01643 src_r = dst_r > src_r ? dst_r - src_r : 0;
<a name="l01644"></a>01644 src_g = dst_g > src_g ? dst_g - src_g : 0;
<a name="l01645"></a>01645 src_b = dst_b > src_b ? dst_b - src_b : 0;
<a name="l01646"></a>01646 src_a = KMIN(src_a, dst_a);
<a name="l01647"></a>01647 }
<a name="l01648"></a>01648 <span class="keywordflow">break</span>;
<a name="l01649"></a>01649 <span class="keywordflow">case</span> DARKEN_ONLY_MODE: {
<a name="l01650"></a>01650 src_r = dst_r < src_r ? dst_r : src_r;
<a name="l01651"></a>01651 src_g = dst_g < src_g ? dst_g : src_g;
<a name="l01652"></a>01652 src_b = dst_b < src_b ? dst_b : src_b;
<a name="l01653"></a>01653 src_a = KMIN( src_a, dst_a );
<a name="l01654"></a>01654 }
<a name="l01655"></a>01655 <span class="keywordflow">break</span>;
<a name="l01656"></a>01656 <span class="keywordflow">case</span> LIGHTEN_ONLY_MODE: {
<a name="l01657"></a>01657 src_r = dst_r < src_r ? src_r : dst_r;
<a name="l01658"></a>01658 src_g = dst_g < src_g ? src_g : dst_g;
<a name="l01659"></a>01659 src_b = dst_b < src_b ? src_b : dst_b;
<a name="l01660"></a>01660 src_a = KMIN(src_a, dst_a);
<a name="l01661"></a>01661 }
<a name="l01662"></a>01662 <span class="keywordflow">break</span>;
<a name="l01663"></a>01663 <span class="keywordflow">case</span> HUE_MODE: {
<a name="l01664"></a>01664 uchar new_r = dst_r;
<a name="l01665"></a>01665 uchar new_g = dst_g;
<a name="l01666"></a>01666 uchar new_b = dst_b;
<a name="l01667"></a>01667
<a name="l01668"></a>01668 RGBTOHSV(src_r, src_g, src_b);
<a name="l01669"></a>01669 RGBTOHSV(new_r, new_g, new_b);
<a name="l01670"></a>01670
<a name="l01671"></a>01671 new_r = src_r;
<a name="l01672"></a>01672
<a name="l01673"></a>01673 HSVTORGB(new_r, new_g, new_b);
<a name="l01674"></a>01674
<a name="l01675"></a>01675 src_r = new_r;
<a name="l01676"></a>01676 src_g = new_g;
<a name="l01677"></a>01677 src_b = new_b;
<a name="l01678"></a>01678 src_a = KMIN( src_a, dst_a );
<a name="l01679"></a>01679 }
<a name="l01680"></a>01680 <span class="keywordflow">break</span>;
<a name="l01681"></a>01681 <span class="keywordflow">case</span> SATURATION_MODE: {
<a name="l01682"></a>01682 uchar new_r = dst_r;
<a name="l01683"></a>01683 uchar new_g = dst_g;
<a name="l01684"></a>01684 uchar new_b = dst_b;
<a name="l01685"></a>01685
<a name="l01686"></a>01686 RGBTOHSV(src_r, src_g, src_b);
<a name="l01687"></a>01687 RGBTOHSV(new_r, new_g, new_b);
<a name="l01688"></a>01688
<a name="l01689"></a>01689 new_g = src_g;
<a name="l01690"></a>01690
<a name="l01691"></a>01691 HSVTORGB(new_r, new_g, new_b);
<a name="l01692"></a>01692
<a name="l01693"></a>01693 src_r = new_r;
<a name="l01694"></a>01694 src_g = new_g;
<a name="l01695"></a>01695 src_b = new_b;
<a name="l01696"></a>01696 src_a = KMIN(src_a, dst_a);
<a name="l01697"></a>01697 }
<a name="l01698"></a>01698 <span class="keywordflow">break</span>;
<a name="l01699"></a>01699 <span class="keywordflow">case</span> VALUE_MODE: {
<a name="l01700"></a>01700 uchar new_r = dst_r;
<a name="l01701"></a>01701 uchar new_g = dst_g;
<a name="l01702"></a>01702 uchar new_b = dst_b;
<a name="l01703"></a>01703
<a name="l01704"></a>01704 RGBTOHSV(src_r, src_g, src_b);
<a name="l01705"></a>01705 RGBTOHSV(new_r, new_g, new_b);
<a name="l01706"></a>01706
<a name="l01707"></a>01707 new_b = src_b;
<a name="l01708"></a>01708
<a name="l01709"></a>01709 HSVTORGB(new_r, new_g, new_b);
<a name="l01710"></a>01710
<a name="l01711"></a>01711 src_r = new_r;
<a name="l01712"></a>01712 src_g = new_g;
<a name="l01713"></a>01713 src_b = new_b;
<a name="l01714"></a>01714 src_a = KMIN(src_a, dst_a);
<a name="l01715"></a>01715 }
<a name="l01716"></a>01716 <span class="keywordflow">break</span>;
<a name="l01717"></a>01717 <span class="keywordflow">case</span> COLOR_MODE: {
<a name="l01718"></a>01718 uchar new_r = dst_r;
<a name="l01719"></a>01719 uchar new_g = dst_g;
<a name="l01720"></a>01720 uchar new_b = dst_b;
<a name="l01721"></a>01721
<a name="l01722"></a>01722 RGBTOHLS(src_r, src_g, src_b);
<a name="l01723"></a>01723 RGBTOHLS(new_r, new_g, new_b);
<a name="l01724"></a>01724
<a name="l01725"></a>01725 new_r = src_r;
<a name="l01726"></a>01726 new_b = src_b;
<a name="l01727"></a>01727
<a name="l01728"></a>01728 HLSTORGB(new_r, new_g, new_b);
<a name="l01729"></a>01729
<a name="l01730"></a>01730 src_r = new_r;
<a name="l01731"></a>01731 src_g = new_g;
<a name="l01732"></a>01732 src_b = new_b;
<a name="l01733"></a>01733 src_a = KMIN(src_a, dst_a);
<a name="l01734"></a>01734 }
<a name="l01735"></a>01735 <span class="keywordflow">break</span>;
<a name="l01736"></a>01736 }
<a name="l01737"></a>01737
<a name="l01738"></a>01738 src_a = INT_MULT(src_a, layer.opacity);
<a name="l01739"></a>01739
<a name="l01740"></a>01740 <span class="comment">// Apply the mask (if any)</span>
<a name="l01741"></a>01741
<a name="l01742"></a>01742 <span class="keywordflow">if</span> (layer.apply_mask == 1 && layer.mask_tiles.size() > j &&
<a name="l01743"></a>01743 layer.mask_tiles[j].size() > i)
<a name="l01744"></a>01744 src_a = INT_MULT(src_a, layer.mask_tiles[j][i].pixelIndex(k, l));
<a name="l01745"></a>01745
<a name="l01746"></a>01746 uchar new_r, new_g, new_b, new_a;
<a name="l01747"></a>01747 new_a = dst_a + INT_MULT(OPAQUE_OPACITY - dst_a, src_a);
<a name="l01748"></a>01748
<a name="l01749"></a>01749 <span class="keywordtype">float</span> src_ratio = (float)src_a / new_a;
<a name="l01750"></a>01750 <span class="keywordtype">float</span> dst_ratio = 1.0 - src_ratio;
<a name="l01751"></a>01751
<a name="l01752"></a>01752 new_r = (uchar)(src_ratio * src_r + dst_ratio * dst_r + EPSILON);
<a name="l01753"></a>01753 new_g = (uchar)(src_ratio * src_g + dst_ratio * dst_g + EPSILON);
<a name="l01754"></a>01754 new_b = (uchar)(src_ratio * src_b + dst_ratio * dst_b + EPSILON);
<a name="l01755"></a>01755
<a name="l01756"></a>01756 <span class="keywordflow">if</span> (!layer_modes[layer.mode].affect_alpha)
<a name="l01757"></a>01757 new_a = dst_a;
<a name="l01758"></a>01758
<a name="l01759"></a>01759 image.<a class="codeRef" href="qimage.html#setPixel">setPixel</a>(m, n, qRgba(new_r, new_g, new_b, new_a));
<a name="l01760"></a>01760 }
<a name="l01761"></a>01761
<a name="l01762"></a>01762
<a name="l01774"></a>01774 <span class="keywordtype">void</span> XCFImageFormat::mergeGrayToGray(Layer& layer, uint i, uint j, <span class="keywordtype">int</span> k, <span class="keywordtype">int</span> l,
<a name="l01775"></a>01775 <a class="codeRef" href="qimage.html">QImage</a>& image, <span class="keywordtype">int</span> m, <span class="keywordtype">int</span> n)
<a name="l01776"></a>01776 {
<a name="l01777"></a>01777 <span class="keywordtype">int</span> src = layer.image_tiles[j][i].pixelIndex(k, l);
<a name="l01778"></a>01778 image.<a class="codeRef" href="qimage.html#setPixel">setPixel</a>(m, n, src);
<a name="l01779"></a>01779 }
<a name="l01780"></a>01780
<a name="l01781"></a>01781
<a name="l01793"></a>01793 <span class="keywordtype">void</span> XCFImageFormat::mergeGrayAToGray(Layer& layer, uint i, uint j, <span class="keywordtype">int</span> k, <span class="keywordtype">int</span> l,
<a name="l01794"></a>01794 <a class="codeRef" href="qimage.html">QImage</a>& image, <span class="keywordtype">int</span> m, <span class="keywordtype">int</span> n)
<a name="l01795"></a>01795 {
<a name="l01796"></a>01796 <span class="keywordtype">int</span> src = qGray(layer.image_tiles[j][i].pixel(k, l));
<a name="l01797"></a>01797 <span class="keywordtype">int</span> dst = image.<a class="codeRef" href="qimage.html#pixelIndex">pixelIndex</a>(m, n);
<a name="l01798"></a>01798
<a name="l01799"></a>01799 uchar src_a = layer.alpha_tiles[j][i].pixelIndex(k, l);
<a name="l01800"></a>01800
<a name="l01801"></a>01801 <span class="keywordflow">switch</span> (layer.mode) {
<a name="l01802"></a>01802 <span class="keywordflow">case</span> MULTIPLY_MODE: {
<a name="l01803"></a>01803 src = INT_MULT( src, dst );
<a name="l01804"></a>01804 }
<a name="l01805"></a>01805 <span class="keywordflow">break</span>;
<a name="l01806"></a>01806 <span class="keywordflow">case</span> DIVIDE_MODE: {
<a name="l01807"></a>01807 src = KMIN((dst * 256) / (1 + src), 255);
<a name="l01808"></a>01808 }
<a name="l01809"></a>01809 <span class="keywordflow">break</span>;
<a name="l01810"></a>01810 <span class="keywordflow">case</span> SCREEN_MODE: {
<a name="l01811"></a>01811 src = 255 - INT_MULT(255 - dst, 255 - src);
<a name="l01812"></a>01812 }
<a name="l01813"></a>01813 <span class="keywordflow">break</span>;
<a name="l01814"></a>01814 <span class="keywordflow">case</span> OVERLAY_MODE: {
<a name="l01815"></a>01815 src = INT_MULT(dst, dst + INT_MULT(2 * src, 255 - dst));
<a name="l01816"></a>01816 }
<a name="l01817"></a>01817 <span class="keywordflow">break</span>;
<a name="l01818"></a>01818 <span class="keywordflow">case</span> DIFFERENCE_MODE: {
<a name="l01819"></a>01819 src = dst > src ? dst - src : src - dst;
<a name="l01820"></a>01820 }
<a name="l01821"></a>01821 <span class="keywordflow">break</span>;
<a name="l01822"></a>01822 <span class="keywordflow">case</span> ADDITION_MODE: {
<a name="l01823"></a>01823 src = add_lut(dst,src);
<a name="l01824"></a>01824 }
<a name="l01825"></a>01825 <span class="keywordflow">break</span>;
<a name="l01826"></a>01826 <span class="keywordflow">case</span> SUBTRACT_MODE: {
<a name="l01827"></a>01827 src = dst > src ? dst - src : 0;
<a name="l01828"></a>01828 }
<a name="l01829"></a>01829 <span class="keywordflow">break</span>;
<a name="l01830"></a>01830 <span class="keywordflow">case</span> DARKEN_ONLY_MODE: {
<a name="l01831"></a>01831 src = dst < src ? dst : src;
<a name="l01832"></a>01832 }
<a name="l01833"></a>01833 <span class="keywordflow">break</span>;
<a name="l01834"></a>01834 <span class="keywordflow">case</span> LIGHTEN_ONLY_MODE: {
<a name="l01835"></a>01835 src = dst < src ? src : dst;
<a name="l01836"></a>01836 }
<a name="l01837"></a>01837 <span class="keywordflow">break</span>;
<a name="l01838"></a>01838 }
<a name="l01839"></a>01839
<a name="l01840"></a>01840 src_a = INT_MULT(src_a, layer.opacity);
<a name="l01841"></a>01841
<a name="l01842"></a>01842 <span class="comment">// Apply the mask (if any)</span>
<a name="l01843"></a>01843
<a name="l01844"></a>01844 <span class="keywordflow">if</span> (layer.apply_mask == 1 && layer.mask_tiles.size() > j &&
<a name="l01845"></a>01845 layer.mask_tiles[j].size() > i)
<a name="l01846"></a>01846 src_a = INT_MULT(src_a, layer.mask_tiles[j][i].pixelIndex(k, l));
<a name="l01847"></a>01847
<a name="l01848"></a>01848 uchar new_a = OPAQUE_OPACITY;
<a name="l01849"></a>01849
<a name="l01850"></a>01850 <span class="keywordtype">float</span> src_ratio = (float)src_a / new_a;
<a name="l01851"></a>01851 <span class="keywordtype">float</span> dst_ratio = 1.0 - src_ratio;
<a name="l01852"></a>01852
<a name="l01853"></a>01853 uchar new_g = (uchar)(src_ratio * src + dst_ratio * dst + EPSILON);
<a name="l01854"></a>01854
<a name="l01855"></a>01855 image.<a class="codeRef" href="qimage.html#setPixel">setPixel</a>(m, n, new_g);
<a name="l01856"></a>01856 }
<a name="l01857"></a>01857
<a name="l01858"></a>01858
<a name="l01872"></a>01872 <span class="keywordtype">void</span> XCFImageFormat::mergeGrayToRGB(Layer& layer, uint i, uint j, <span class="keywordtype">int</span> k, <span class="keywordtype">int</span> l,
<a name="l01873"></a>01873 <a class="codeRef" href="qimage.html">QImage</a>& image, <span class="keywordtype">int</span> m, <span class="keywordtype">int</span> n)
<a name="l01874"></a>01874 {
<a name="l01875"></a>01875 QRgb src = layer.image_tiles[j][i].pixel(k, l);
<a name="l01876"></a>01876 uchar src_a = layer.opacity;
<a name="l01877"></a>01877 image.<a class="codeRef" href="qimage.html#setPixel">setPixel</a>(m, n, qRgba(src, src_a));
<a name="l01878"></a>01878 }
<a name="l01879"></a>01879
<a name="l01880"></a>01880
<a name="l01894"></a>01894 <span class="keywordtype">void</span> XCFImageFormat::mergeGrayAToRGB(Layer& layer, uint i, uint j, <span class="keywordtype">int</span> k, <span class="keywordtype">int</span> l,
<a name="l01895"></a>01895 <a class="codeRef" href="qimage.html">QImage</a>& image, <span class="keywordtype">int</span> m, <span class="keywordtype">int</span> n)
<a name="l01896"></a>01896 {
<a name="l01897"></a>01897 <span class="keywordtype">int</span> src = qGray(layer.image_tiles[j][i].pixel(k, l));
<a name="l01898"></a>01898 <span class="keywordtype">int</span> dst = qGray(image.<a class="codeRef" href="qimage.html#pixel">pixel</a>(m, n));
<a name="l01899"></a>01899
<a name="l01900"></a>01900 uchar src_a = layer.alpha_tiles[j][i].pixelIndex(k, l);
<a name="l01901"></a>01901 uchar dst_a = qAlpha(image.<a class="codeRef" href="qimage.html#pixel">pixel</a>(m, n));
<a name="l01902"></a>01902
<a name="l01903"></a>01903 <span class="keywordflow">switch</span> (layer.mode) {
<a name="l01904"></a>01904 <span class="keywordflow">case</span> MULTIPLY_MODE: {
<a name="l01905"></a>01905 src = INT_MULT(src, dst);
<a name="l01906"></a>01906 src_a = KMIN(src_a, dst_a);
<a name="l01907"></a>01907 }
<a name="l01908"></a>01908 <span class="keywordflow">break</span>;
<a name="l01909"></a>01909 <span class="keywordflow">case</span> DIVIDE_MODE: {
<a name="l01910"></a>01910 src = KMIN((dst * 256) / (1 + src), 255);
<a name="l01911"></a>01911 src_a = KMIN(src_a, dst_a);
<a name="l01912"></a>01912 }
<a name="l01913"></a>01913 <span class="keywordflow">break</span>;
<a name="l01914"></a>01914 <span class="keywordflow">case</span> SCREEN_MODE: {
<a name="l01915"></a>01915 src = 255 - INT_MULT(255 - dst, 255 - src);
<a name="l01916"></a>01916 src_a = KMIN(src_a, dst_a);
<a name="l01917"></a>01917 }
<a name="l01918"></a>01918 <span class="keywordflow">break</span>;
<a name="l01919"></a>01919 <span class="keywordflow">case</span> OVERLAY_MODE: {
<a name="l01920"></a>01920 src = INT_MULT( dst, dst + INT_MULT(2 * src, 255 - dst));
<a name="l01921"></a>01921 src_a = KMIN(src_a, dst_a);
<a name="l01922"></a>01922 }
<a name="l01923"></a>01923 <span class="keywordflow">break</span>;
<a name="l01924"></a>01924 <span class="keywordflow">case</span> DIFFERENCE_MODE: {
<a name="l01925"></a>01925 src = dst > src ? dst - src : src - dst;
<a name="l01926"></a>01926 src_a = KMIN(src_a, dst_a);
<a name="l01927"></a>01927 }
<a name="l01928"></a>01928 <span class="keywordflow">break</span>;
<a name="l01929"></a>01929 <span class="keywordflow">case</span> ADDITION_MODE: {
<a name="l01930"></a>01930 src = add_lut(dst,src);
<a name="l01931"></a>01931 src_a = KMIN(src_a, dst_a);
<a name="l01932"></a>01932 }
<a name="l01933"></a>01933 <span class="keywordflow">break</span>;
<a name="l01934"></a>01934 <span class="keywordflow">case</span> SUBTRACT_MODE: {
<a name="l01935"></a>01935 src = dst > src ? dst - src : 0;
<a name="l01936"></a>01936 src_a = KMIN(src_a, dst_a);
<a name="l01937"></a>01937 }
<a name="l01938"></a>01938 <span class="keywordflow">break</span>;
<a name="l01939"></a>01939 <span class="keywordflow">case</span> DARKEN_ONLY_MODE: {
<a name="l01940"></a>01940 src = dst < src ? dst : src;
<a name="l01941"></a>01941 src_a = KMIN(src_a, dst_a);
<a name="l01942"></a>01942 }
<a name="l01943"></a>01943 <span class="keywordflow">break</span>;
<a name="l01944"></a>01944 <span class="keywordflow">case</span> LIGHTEN_ONLY_MODE: {
<a name="l01945"></a>01945 src = dst < src ? src : dst;
<a name="l01946"></a>01946 src_a = KMIN(src_a, dst_a);
<a name="l01947"></a>01947 }
<a name="l01948"></a>01948 <span class="keywordflow">break</span>;
<a name="l01949"></a>01949 }
<a name="l01950"></a>01950
<a name="l01951"></a>01951 src_a = INT_MULT(src_a, layer.opacity);
<a name="l01952"></a>01952
<a name="l01953"></a>01953 <span class="comment">// Apply the mask (if any)</span>
<a name="l01954"></a>01954 <span class="keywordflow">if</span> (layer.apply_mask == 1 && layer.mask_tiles.size() > j &&
<a name="l01955"></a>01955 layer.mask_tiles[j].size() > i)
<a name="l01956"></a>01956 src_a = INT_MULT(src_a, layer.mask_tiles[j][i].pixelIndex(k, l));
<a name="l01957"></a>01957
<a name="l01958"></a>01958 uchar new_a = dst_a + INT_MULT(OPAQUE_OPACITY - dst_a, src_a);
<a name="l01959"></a>01959
<a name="l01960"></a>01960 <span class="keywordtype">float</span> src_ratio = (float)src_a / new_a;
<a name="l01961"></a>01961 <span class="keywordtype">float</span> dst_ratio = 1.0 - src_ratio;
<a name="l01962"></a>01962
<a name="l01963"></a>01963 uchar new_g = (uchar)(src_ratio * src + dst_ratio * dst + EPSILON);
<a name="l01964"></a>01964
<a name="l01965"></a>01965 <span class="keywordflow">if</span> (!layer_modes[layer.mode].affect_alpha)
<a name="l01966"></a>01966 new_a = dst_a;
<a name="l01967"></a>01967
<a name="l01968"></a>01968 image.<a class="codeRef" href="qimage.html#setPixel">setPixel</a>(m, n, qRgba(new_g, new_g, new_g, new_a));
<a name="l01969"></a>01969 }
<a name="l01970"></a>01970
<a name="l01971"></a>01971
<a name="l01983"></a>01983 <span class="keywordtype">void</span> XCFImageFormat::mergeIndexedToIndexed(Layer& layer, uint i, uint j, <span class="keywordtype">int</span> k, <span class="keywordtype">int</span> l,
<a name="l01984"></a>01984 <a class="codeRef" href="qimage.html">QImage</a>& image, <span class="keywordtype">int</span> m, <span class="keywordtype">int</span> n)
<a name="l01985"></a>01985 {
<a name="l01986"></a>01986 <span class="keywordtype">int</span> src = layer.image_tiles[j][i].pixelIndex(k, l);
<a name="l01987"></a>01987 image.<a class="codeRef" href="qimage.html#setPixel">setPixel</a>(m, n, src);
<a name="l01988"></a>01988 }
<a name="l01989"></a>01989
<a name="l01990"></a>01990
<a name="l02002"></a>02002 <span class="keywordtype">void</span> XCFImageFormat::mergeIndexedAToIndexed(Layer& layer, uint i, uint j, <span class="keywordtype">int</span> k, <span class="keywordtype">int</span> l,
<a name="l02003"></a>02003 <a class="codeRef" href="qimage.html">QImage</a>& image, <span class="keywordtype">int</span> m, <span class="keywordtype">int</span> n)
<a name="l02004"></a>02004 {
<a name="l02005"></a>02005 uchar src = layer.image_tiles[j][i].pixelIndex(k, l);
<a name="l02006"></a>02006 uchar src_a = layer.alpha_tiles[j][i].pixelIndex(k, l);
<a name="l02007"></a>02007 src_a = INT_MULT( src_a, layer.opacity );
<a name="l02008"></a>02008
<a name="l02009"></a>02009 <span class="keywordflow">if</span> ( layer.apply_mask == 1 &&
<a name="l02010"></a>02010 layer.mask_tiles.size() > j &&
<a name="l02011"></a>02011 layer.mask_tiles[j].size() > i)
<a name="l02012"></a>02012 src_a = INT_MULT(src_a, layer.mask_tiles[j][i].pixelIndex(k, l));
<a name="l02013"></a>02013
<a name="l02014"></a>02014 <span class="keywordflow">if</span> (src_a > 127) {
<a name="l02015"></a>02015 src++;
<a name="l02016"></a>02016 image.<a class="codeRef" href="qimage.html#setPixel">setPixel</a>(m, n, src);
<a name="l02017"></a>02017 }
<a name="l02018"></a>02018 }
<a name="l02019"></a>02019
<a name="l02020"></a>02020
<a name="l02034"></a>02034 <span class="keywordtype">void</span> XCFImageFormat::mergeIndexedAToRGB(Layer& layer, uint i, uint j, <span class="keywordtype">int</span> k, <span class="keywordtype">int</span> l,
<a name="l02035"></a>02035 <a class="codeRef" href="qimage.html">QImage</a>& image, <span class="keywordtype">int</span> m, <span class="keywordtype">int</span> n)
<a name="l02036"></a>02036 {
<a name="l02037"></a>02037 QRgb src = layer.image_tiles[j][i].pixel(k, l);
<a name="l02038"></a>02038 uchar src_a = layer.alpha_tiles[j][i].pixelIndex(k, l);
<a name="l02039"></a>02039 src_a = INT_MULT(src_a, layer.opacity);
<a name="l02040"></a>02040
<a name="l02041"></a>02041 <span class="comment">// Apply the mask (if any)</span>
<a name="l02042"></a>02042 <span class="keywordflow">if</span> (layer.apply_mask == 1 && layer.mask_tiles.size() > j &&
<a name="l02043"></a>02043 layer.mask_tiles[j].size() > i)
<a name="l02044"></a>02044 src_a = INT_MULT(src_a, layer.mask_tiles[j][i].pixelIndex(k, l));
<a name="l02045"></a>02045
<a name="l02046"></a>02046 <span class="comment">// This is what appears in the GIMP window</span>
<a name="l02047"></a>02047 <span class="keywordflow">if</span> (src_a <= 127)
<a name="l02048"></a>02048 src_a = 0;
<a name="l02049"></a>02049 <span class="keywordflow">else</span>
<a name="l02050"></a>02050 src_a = OPAQUE_OPACITY;
<a name="l02051"></a>02051
<a name="l02052"></a>02052 image.<a class="codeRef" href="qimage.html#setPixel">setPixel</a>(m, n, qRgba(src, src_a));
<a name="l02053"></a>02053 }
<a name="l02054"></a>02054
<a name="l02055"></a>02055
<a name="l02063"></a>02063 <span class="keywordtype">void</span> XCFImageFormat::dissolveRGBPixels ( <a class="codeRef" href="qimage.html">QImage</a>& image, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y )
<a name="l02064"></a>02064 {
<a name="l02065"></a>02065 <span class="comment">// The apparently spurious rand() calls are to wind the random</span>
<a name="l02066"></a>02066 <span class="comment">// numbers up to the same point for each tile.</span>
<a name="l02067"></a>02067
<a name="l02068"></a>02068 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> l = 0; l < image.<a class="codeRef" href="qimage.html#height">height</a>(); l++) {
<a name="l02069"></a>02069 srand(random_table[( l + y ) % RANDOM_TABLE_SIZE]);
<a name="l02070"></a>02070
<a name="l02071"></a>02071 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> k = 0; k < x; k++)
<a name="l02072"></a>02072 rand();
<a name="l02073"></a>02073
<a name="l02074"></a>02074 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> k = 0; k < image.<a class="codeRef" href="qimage.html#width">width</a>(); k++) {
<a name="l02075"></a>02075 <span class="keywordtype">int</span> rand_val = rand() & 0xff;
<a name="l02076"></a>02076 QRgb pixel = image.<a class="codeRef" href="qimage.html#pixel">pixel</a>(k, l);
<a name="l02077"></a>02077
<a name="l02078"></a>02078 <span class="keywordflow">if</span> (rand_val > qAlpha(pixel)) {
<a name="l02079"></a>02079 image.<a class="codeRef" href="qimage.html#setPixel">setPixel</a>(k, l, qRgba(pixel, 0));
<a name="l02080"></a>02080 }
<a name="l02081"></a>02081 }
<a name="l02082"></a>02082 }
<a name="l02083"></a>02083 }
<a name="l02084"></a>02084
<a name="l02085"></a>02085
<a name="l02095"></a>02095 <span class="keywordtype">void</span> XCFImageFormat::dissolveAlphaPixels ( <a class="codeRef" href="qimage.html">QImage</a>& image, <span class="keywordtype">int</span> x, <span class="keywordtype">int</span> y )
<a name="l02096"></a>02096 {
<a name="l02097"></a>02097 <span class="comment">// The apparently spurious rand() calls are to wind the random</span>
<a name="l02098"></a>02098 <span class="comment">// numbers up to the same point for each tile.</span>
<a name="l02099"></a>02099
<a name="l02100"></a>02100 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> l = 0; l < image.<a class="codeRef" href="qimage.html#height">height</a>(); l++) {
<a name="l02101"></a>02101 srand( random_table[(l + y) % RANDOM_TABLE_SIZE]);
<a name="l02102"></a>02102
<a name="l02103"></a>02103 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> k = 0; k < x; k++)
<a name="l02104"></a>02104 rand();
<a name="l02105"></a>02105
<a name="l02106"></a>02106 <span class="keywordflow">for</span> (<span class="keywordtype">int</span> k = 0; k < image.<a class="codeRef" href="qimage.html#width">width</a>(); k++) {
<a name="l02107"></a>02107 <span class="keywordtype">int</span> rand_val = rand() & 0xff;
<a name="l02108"></a>02108 uchar alpha = image.<a class="codeRef" href="qimage.html#pixelIndex">pixelIndex</a>(k, l);
<a name="l02109"></a>02109
<a name="l02110"></a>02110 <span class="keywordflow">if</span> (rand_val > alpha) {
<a name="l02111"></a>02111 image.<a class="codeRef" href="qimage.html#setPixel">setPixel</a>(k, l, 0);
<a name="l02112"></a>02112 }
<a name="l02113"></a>02113 }
<a name="l02114"></a>02114 }
<a name="l02115"></a>02115 }
<a name="l02116"></a>02116
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