added game music plugin

git-svn-id: http://svn.code.sf.net/p/qmmp-dev/code/trunk/qmmp@1909 90c681e8-e032-0410-971d-27865f9a5e38

1 files changed, 125 insertions, 0 deletions

diff --git a/src/plugins/Input/gme/gmehelper.cpp b/src/plugins/Input/gme/gmehelper.cpp
new file mode 100644
index 000000000..120dcdd1f
--- /dev/null
+++ b/src/plugins/Input/gme/gmehelper.cpp
@@ -0,0 +1,125 @@
+/***************************************************************************
+ *   Copyright (C) 2010 by Ilya Kotov                                      *
+ *   forkotov02@hotmail.ru                                                 *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ ***************************************************************************/
+
+#include "gmehelper.h"
+
+#define FADE_LENGTH 8000
+
+GmeHelper::GmeHelper()
+{
+     m_emu = 0;
+}
+
+GmeHelper::~GmeHelper()
+{
+    if(m_emu)
+        delete m_emu;
+    m_emu = 0;
+}
+
+Music_Emu *GmeHelper::load(const QString &url, int sample_rate)
+{
+    if(m_emu)
+        delete m_emu;
+    m_emu = 0;
+    QString path = url;
+    if(url.contains("://"))
+    {
+        path = QUrl(url).path();
+        path.replace(QString(QUrl::toPercentEncoding("#")), "#");
+        path.replace(QString(QUrl::toPercentEncoding("?")), "?");
+        path.replace(QString(QUrl::toPercentEncoding("%")), "%");
+    }
+    const char *err = 0;
+    gme_type_t file_type;
+    if((err = gme_identify_file(qPrintable(path),&file_type)))
+    {
+        qWarning("GmeHelper: %s", err);
+        return 0;
+    }
+    if(!file_type)
+    {
+        qWarning("DecoderGme: unsupporetd music type");
+        return 0;
+    }
+    if(!(m_emu = file_type->new_emu()))
+    {
+        qWarning("GmeHelper: out of memory");
+        return 0;
+    }
+    if((err = m_emu->set_sample_rate(sample_rate)))
+    {
+        qWarning("GmeHelper: %s", err);
+        return 0;
+    }
+    if((err = m_emu->load_file(qPrintable(path))))
+    {
+        qWarning("GmeHelper: %s", err);
+        return 0;
+    }
+    QString m3u_path = path.left(path.lastIndexOf("."));
+    m3u_path.append(".m3u");
+    m_emu->load_m3u(qPrintable(m3u_path));
+    m_path = path;
+    return m_emu;
+}
+
+QList <FileInfo*> GmeHelper::createPlayList(bool meta)
+{
+    QList <FileInfo*> list;
+    if(!m_emu)
+        return list;
+    int count = m_emu->track_count();
+    track_info_t track_info;
+    for(int i = 0; i < count; ++i)
+    {
+        FileInfo *info = new FileInfo();
+        m_emu->start_track(i);
+        if(!m_emu->track_info(&track_info))
+        {
+            if(track_info.length <= 0)
+                track_info.length = track_info.intro_length + track_info.loop_length * 2;
+        }
+        if(track_info.length <= 0)
+            track_info.length = (long) (2.5 * 60 * 1000);
+        if(track_info.length < FADE_LENGTH)
+            track_info.length += FADE_LENGTH;
+        if(meta)
+        {
+            info->setMetaData(Qmmp::TITLE, track_info.song);
+            info->setMetaData(Qmmp::ARTIST, track_info.author);
+            info->setMetaData(Qmmp::COMMENT, track_info.comment);
+            info->setMetaData(Qmmp::TRACK, i+1);
+        }
+        QString path = m_path;
+        path.replace("%", QString(QUrl::toPercentEncoding("%"))); //replace special symbols
+        path.replace("#", QString(QUrl::toPercentEncoding("#")));
+        path.replace("?", QString(QUrl::toPercentEncoding("?")));
+        info->setPath("gme://"+path+QString("#%1").arg(i+1));
+        info->setLength(track_info.length/1000);
+        list << info;
+    }
+    return list;
+}
+
+int GmeHelper::fadeLength()
+{
+    return FADE_LENGTH;
+}