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Diffstat (limited to '')
| -rw-r--r-- | src/decoder/plugins/MikmodDecoderPlugin.cxx | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/src/decoder/plugins/MikmodDecoderPlugin.cxx b/src/decoder/plugins/MikmodDecoderPlugin.cxx new file mode 100644 index 000000000..85633f1fc --- /dev/null +++ b/src/decoder/plugins/MikmodDecoderPlugin.cxx @@ -0,0 +1,250 @@ +/* + * Copyright (C) 2003-2014 The Music Player Daemon Project + * http://www.musicpd.org + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include "config.h" +#include "MikmodDecoderPlugin.hxx" +#include "../DecoderAPI.hxx" +#include "tag/TagHandler.hxx" +#include "system/FatalError.hxx" +#include "fs/Path.hxx" +#include "util/Domain.hxx" +#include "Log.hxx" + +#include <mikmod.h> + +#include <assert.h> + +static constexpr Domain mikmod_domain("mikmod"); + +/* this is largely copied from alsaplayer */ + +static constexpr size_t MIKMOD_FRAME_SIZE = 4096; + +static BOOL +mikmod_mpd_init(void) +{ + return VC_Init(); +} + +static void +mikmod_mpd_exit(void) +{ + VC_Exit(); +} + +static void +mikmod_mpd_update(void) +{ +} + +static BOOL +mikmod_mpd_is_present(void) +{ + return true; +} + +static char drv_name[] = PACKAGE_NAME; +static char drv_version[] = VERSION; + +#if (LIBMIKMOD_VERSION > 0x030106) +static char drv_alias[] = PACKAGE; +#endif + +static MDRIVER drv_mpd = { + nullptr, + drv_name, + drv_version, + 0, + 255, +#if (LIBMIKMOD_VERSION > 0x030106) + drv_alias, +#if (LIBMIKMOD_VERSION >= 0x030200) + nullptr, /* CmdLineHelp */ +#endif + nullptr, /* CommandLine */ +#endif + mikmod_mpd_is_present, + VC_SampleLoad, + VC_SampleUnload, + VC_SampleSpace, + VC_SampleLength, + mikmod_mpd_init, + mikmod_mpd_exit, + nullptr, + VC_SetNumVoices, + VC_PlayStart, + VC_PlayStop, + mikmod_mpd_update, + nullptr, + VC_VoiceSetVolume, + VC_VoiceGetVolume, + VC_VoiceSetFrequency, + VC_VoiceGetFrequency, + VC_VoiceSetPanning, + VC_VoiceGetPanning, + VC_VoicePlay, + VC_VoiceStop, + VC_VoiceStopped, + VC_VoiceGetPosition, + VC_VoiceRealVolume +}; + +static bool mikmod_loop; +static unsigned mikmod_sample_rate; + +static bool +mikmod_decoder_init(const config_param ¶m) +{ + static char params[] = ""; + + mikmod_loop = param.GetBlockValue("loop", false); + mikmod_sample_rate = param.GetBlockValue("sample_rate", 44100u); + if (!audio_valid_sample_rate(mikmod_sample_rate)) + FormatFatalError("Invalid sample rate in line %d: %u", + param.line, mikmod_sample_rate); + + md_device = 0; + md_reverb = 0; + + MikMod_RegisterDriver(&drv_mpd); + MikMod_RegisterAllLoaders(); + + md_pansep = 64; + md_mixfreq = mikmod_sample_rate; + md_mode = (DMODE_SOFT_MUSIC | DMODE_INTERP | DMODE_STEREO | + DMODE_16BITS); + + if (MikMod_Init(params)) { + FormatError(mikmod_domain, + "Could not init MikMod: %s", + MikMod_strerror(MikMod_errno)); + return false; + } + + return true; +} + +static void +mikmod_decoder_finish(void) +{ + MikMod_Exit(); +} + +static void +mikmod_decoder_file_decode(Decoder &decoder, Path path_fs) +{ + /* deconstify the path because libmikmod wants a non-const + string pointer */ + char *const path2 = const_cast<char *>(path_fs.c_str()); + + MODULE *handle; + int ret; + SBYTE buffer[MIKMOD_FRAME_SIZE]; + + handle = Player_Load(path2, 128, 0); + + if (handle == nullptr) { + FormatError(mikmod_domain, + "failed to open mod: %s", path_fs.c_str()); + return; + } + + handle->loop = mikmod_loop; + + const AudioFormat audio_format(mikmod_sample_rate, SampleFormat::S16, 2); + assert(audio_format.IsValid()); + + decoder_initialized(decoder, audio_format, false, + SignedSongTime::Negative()); + + Player_Start(handle); + + DecoderCommand cmd = DecoderCommand::NONE; + while (cmd == DecoderCommand::NONE && Player_Active()) { + ret = VC_WriteBytes(buffer, sizeof(buffer)); + cmd = decoder_data(decoder, nullptr, buffer, ret, 0); + } + + Player_Stop(); + Player_Free(handle); +} + +static bool +mikmod_decoder_scan_file(Path path_fs, + const struct tag_handler *handler, void *handler_ctx) +{ + /* deconstify the path because libmikmod wants a non-const + string pointer */ + char *const path2 = const_cast<char *>(path_fs.c_str()); + + MODULE *handle = Player_Load(path2, 128, 0); + + if (handle == nullptr) { + FormatDebug(mikmod_domain, + "Failed to open file: %s", path_fs.c_str()); + return false; + } + + Player_Free(handle); + + char *title = Player_LoadTitle(path2); + if (title != nullptr) { + tag_handler_invoke_tag(handler, handler_ctx, + TAG_TITLE, title); +#if (LIBMIKMOD_VERSION >= 0x030200) + MikMod_free(title); +#else + free(title); +#endif + } + + return true; +} + +static const char *const mikmod_decoder_suffixes[] = { + "amf", + "dsm", + "far", + "gdm", + "imf", + "it", + "med", + "mod", + "mtm", + "s3m", + "stm", + "stx", + "ult", + "uni", + "xm", + nullptr +}; + +const struct DecoderPlugin mikmod_decoder_plugin = { + "mikmod", + mikmod_decoder_init, + mikmod_decoder_finish, + nullptr, + mikmod_decoder_file_decode, + mikmod_decoder_scan_file, + nullptr, + nullptr, + mikmod_decoder_suffixes, + nullptr, +}; |