mirror of
https://github.com/ZDoom/gzdoom-gles.git
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e04055dbb2
- made 'developer' CVAR persist across launches and added some menu entries for it. - added checks for 'developer' to ACS's CheckInventory function.
220 lines
4.8 KiB
C++
220 lines
4.8 KiB
C++
/*
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** s_playlist.cpp
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** Implementation of the FPlayList class. Handles m3u playlist parsing
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**
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**---------------------------------------------------------------------------
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** Copyright 1998-2006 Randy Heit
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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*/
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#include <stdlib.h>
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#include <errno.h>
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#include "cmdlib.h"
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#include "s_playlist.h"
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#include "templates.h"
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#include "v_text.h"
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FPlayList::FPlayList (const char *path)
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{
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ChangeList (path);
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}
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FPlayList::~FPlayList ()
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{
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}
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bool FPlayList::ChangeList (const char *path)
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{
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FString playlistdir;
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FString song;
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FILE *file;
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bool first;
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bool pls;
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int i;
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Songs.Clear();
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Position = 0;
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if ( (file = fopen (path, "rb")) == NULL)
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{
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Printf ("Could not open " TEXTCOLOR_BOLD "%s" TEXTCOLOR_NORMAL ": %s\n", path, strerror(errno));
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return false;
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}
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first = true;
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pls = false;
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playlistdir = ExtractFilePath(path);
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while ((song = NextLine(file)).IsNotEmpty())
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{
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if (first)
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{
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first = false;
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// Check for ID tags.
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if (song.Compare("[playlist]") == 0)
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{
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pls = true;
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continue;
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}
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}
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// For a .PLS file, skip anything that doesn't start with File[0-9]+=
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if (pls)
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{
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if (strncmp(song, "File", 4) != 0)
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{
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continue;
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}
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for (i = 4; song[i] >= '0' && song[i] <= '9'; ++i)
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{
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}
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if (song[i] != '=')
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{
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continue;
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}
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song = song.Mid(i + 1);
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}
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// Check for relative paths.
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long slashpos = song.IndexOf('/');
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if (slashpos == 0)
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{
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// First character is a slash, so it's absolute.
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}
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#ifdef _WIN32
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else if (slashpos == 2 && song[1] == ':')
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{
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// Name is something like X:/, so it's absolute.
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}
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#endif
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else if (song.IndexOf("://") == slashpos - 1)
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{
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// Name is a URL, so it's absolute.
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}
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else
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{
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// Path is relative; append it to the playlist directory.
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song = playlistdir + song;
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}
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// Just to make sure
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if (song.IsNotEmpty())
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{
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Songs.Push(song);
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}
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}
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fclose (file);
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return Songs.Size() != 0;
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}
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FString FPlayList::NextLine (FILE *file)
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{
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char buffer[512];
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char *skipper;
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do
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{
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if (NULL == fgets (buffer, countof(buffer), file))
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return "";
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for (skipper = buffer; *skipper != 0 && *skipper <= ' '; skipper++)
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;
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} while (*skipper == '#' || *skipper == 0);
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FString str(skipper);
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str.StripRight("\r\n");
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FixPathSeperator(str);
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return str;
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}
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// Shuffles the playlist and resets the position to the start
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void FPlayList::Shuffle ()
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{
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unsigned int numsongs = Songs.Size();
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unsigned int i;
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for (i = 0; i < numsongs; ++i)
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{
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swapvalues (Songs[i], Songs[(rand() % (numsongs - i)) + i]);
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}
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Position = 0;
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}
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int FPlayList::GetNumSongs () const
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{
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return (int)Songs.Size();
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}
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int FPlayList::SetPosition (int position)
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{
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if ((unsigned)position >= Songs.Size())
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{
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Position = 0;
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}
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else
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{
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Position = position;
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}
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DPrintf (DMSG_NOTIFY, "Playlist position set to %d\n", Position);
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return Position;
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}
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int FPlayList::GetPosition () const
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{
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return Position;
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}
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int FPlayList::Advance ()
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{
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if (++Position >= Songs.Size())
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{
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Position = 0;
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}
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DPrintf (DMSG_NOTIFY, "Playlist advanced to song %d\n", Position);
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return Position;
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}
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int FPlayList::Backup ()
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{
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if (Position-- == 0)
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{
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Position = Songs.Size() - 1;
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}
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DPrintf (DMSG_NOTIFY, "Playlist backed up to song %d\n", Position);
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return Position;
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}
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const char *FPlayList::GetSong (int position) const
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{
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if ((unsigned)position >= Songs.Size())
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return NULL;
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return Songs[position];
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}
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