Mercurial > hg > xmms-sid
view src/xs_sidplay1.cc @ 202:fe684a2ccdc7
Reworking code.
author | Matti Hamalainen <ccr@tnsp.org> |
---|---|
date | Tue, 16 Nov 2004 06:56:02 +0000 |
parents | 6afee1ba02bb |
children | 608f31f6c095 |
line wrap: on
line source
/* XMMS-SID - SIDPlay input plugin for X MultiMedia System (XMMS) libSIDPlay v1 support Written by Matti "ccr" Hamalainen <ccr@tnsp.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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "xmms-sid.h" #ifdef HAVE_SIDPLAY1 extern "C" { #include "xs_sidplay1.h" #include <stdio.h> #include "xs_config.h" #include "xs_length.h" #include "xs_title.h" } #include <sidplay/player.h> #include <sidplay/myendian.h> #include <sidplay/fformat.h> typedef struct { emuEngine *currEng; emuConfig currConfig; sidTune *currTune; } t_xs_sidplay1; /* * We need to 'export' all this pseudo-C++ crap */ extern "C" { /* * Check if we can play the given file */ gboolean xs_sidplay1_isourfile(gchar *pcFilename) { sidTune *testTune = new sidTune(pcFilename); if (!testTune) return FALSE; if (!testTune->getStatus()) { delete testTune; return FALSE; } delete testTune; return TRUE; } /* * Initialize SIDPlay1 */ gboolean xs_sidplay1_init(t_xs_status *myStatus) { t_xs_sidplay1 *myPlayer; assert(myStatus); /* Allocate internal structures */ myPlayer = (t_xs_sidplay1 *) g_malloc0(sizeof(t_xs_sidplay1)); if (!myPlayer) return FALSE; /* Initialize engine */ myPlayer->currEng = new emuEngine(); if (!myPlayer->currEng) { XSERR("Could not initialize libSIDPlay1 emulation engine\n"); g_free(myPlayer); return FALSE; } /* Verify endianess */ if (!myPlayer->currEng->verifyEndianess()) { XSERR("Endianess verification failed\n"); delete myPlayer->currEng; g_free(myPlayer); return FALSE; } myStatus->player = myPlayer; return TRUE; } /* * Close SIDPlay1 */ void xs_sidplay1_close(t_xs_status *myStatus) { t_xs_sidplay1 *myPlayer; assert(myStatus); /* Free internals */ myPlayer = (t_xs_sidplay1 *) myStatus->player; if (myPlayer->currEng) { delete myPlayer->currEng; myPlayer->currEng = NULL; } g_free(myPlayer); myStatus->player = NULL; } gboolean xs_sidplay1_initsong(t_xs_status *myStatus) { t_xs_sidplay1 *myPlayer = (t_xs_sidplay1 *) myStatus->player; if (!myPlayer) return FALSE; if (!myPlayer->currTune) { XSERR("Tune was NULL\n"); return FALSE; } if (!myPlayer->currTune->getStatus()) { XSERR("Tune status check failed\n"); return FALSE; } return sidEmuInitializeSong( *myPlayer->currEng, *myPlayer->currTune, myStatus->currSong); } guint xs_sidplay1_fillbuffer(t_xs_status *myStatus, gchar *audioBuffer, guint audioBufSize) { t_xs_sidplay1 *myPlayer = (t_xs_sidplay1 *) myStatus->player; if (!myPlayer) return FALSE; sidEmuFillBuffer( *myPlayer->currEng, *myPlayer->currTune, audioBuffer, audioBufSize); return audioBufSize; } gboolean xs_sidplay1_loadsid(t_xs_status *myStatus, gchar *pcFilename) { t_xs_sidplay1 *myPlayer = (t_xs_sidplay1 *) myStatus->player; sidTune *newTune; assert(myStatus); /* Try to get the tune */ if (!pcFilename) return FALSE; newTune = new sidTune(pcFilename); if (!newTune) return FALSE; /* Get current configuration */ myPlayer->currEng->getConfig(myPlayer->currConfig); /* Configure channels and stuff */ switch (myStatus->audioChannels) { case XS_CHN_AUTOPAN: myPlayer->currConfig.channels = SIDEMU_STEREO; myPlayer->currConfig.autoPanning = SIDEMU_CENTEREDAUTOPANNING; myPlayer->currConfig.volumeControl = SIDEMU_FULLPANNING; break; case XS_CHN_STEREO: myPlayer->currConfig.channels = SIDEMU_STEREO; myPlayer->currConfig.autoPanning = SIDEMU_NONE; myPlayer->currConfig.volumeControl = SIDEMU_NONE; break; case XS_CHN_MONO: default: myPlayer->currConfig.channels = SIDEMU_MONO; myPlayer->currConfig.autoPanning = SIDEMU_NONE; myPlayer->currConfig.volumeControl = SIDEMU_NONE; break; } /* Memory mode settings */ switch (xs_cfg.memoryMode) { case XS_MPU_BANK_SWITCHING: myPlayer->currConfig.memoryMode = MPU_BANK_SWITCHING; break; case XS_MPU_TRANSPARENT_ROM: myPlayer->currConfig.memoryMode = MPU_TRANSPARENT_ROM; break; case XS_MPU_PLAYSID_ENVIRONMENT: myPlayer->currConfig.memoryMode = MPU_PLAYSID_ENVIRONMENT; break; default: myPlayer->currConfig.memoryMode = MPU_BANK_SWITCHING; break; } /* Clockspeed settings */ switch (xs_cfg.clockSpeed) { case XS_CLOCK_NTSC: myPlayer->currConfig.clockSpeed = SIDTUNE_CLOCK_NTSC; break; case XS_CLOCK_PAL: default: myPlayer->currConfig.clockSpeed = SIDTUNE_CLOCK_PAL; break; } /* Configure rest of the emulation */ myPlayer->currConfig.mos8580 = xs_cfg.mos8580; myPlayer->currConfig.emulateFilter = xs_cfg.emulateFilters; myPlayer->currConfig.filterFs = xs_cfg.filterFs; myPlayer->currConfig.filterFm = xs_cfg.filterFm; myPlayer->currConfig.filterFt = xs_cfg.filterFt; myPlayer->currConfig.bitsPerSample = myStatus->audioBitsPerSample; myPlayer->currConfig.frequency = myStatus->audioFrequency; switch (myStatus->audioBitsPerSample) { case XS_RES_8BIT: switch (myStatus->audioFormat) { case FMT_S8: myPlayer->currConfig.sampleFormat = SIDEMU_SIGNED_PCM; break; case FMT_U8: default: myStatus->audioFormat = FMT_U8; myPlayer->currConfig.sampleFormat = SIDEMU_UNSIGNED_PCM; break; } break; case XS_RES_16BIT: switch (myStatus->audioFormat) { case FMT_U16_NE: case FMT_U16_LE: case FMT_U16_BE: myStatus->audioFormat = FMT_U16_NE; myPlayer->currConfig.sampleFormat = SIDEMU_UNSIGNED_PCM; break; case FMT_S16_NE: case FMT_S16_LE: case FMT_S16_BE: default: myStatus->audioFormat = FMT_S16_NE; myPlayer->currConfig.sampleFormat = SIDEMU_SIGNED_PCM; break; } break; } /* Now set the emulator configuration */ if (!myPlayer->currEng->setConfig(myPlayer->currConfig)) { XSERR("Emulator engine configuration failed!\n"); return FALSE; } /* Initialize status information */ myPlayer->currTune = newTune; return TRUE; } /* * Delete INTERNAL information */ void xs_sidplay1_deletesid(t_xs_status *myStatus) { t_xs_sidplay1 *myPlayer; assert(myStatus); myPlayer = (t_xs_sidplay1 *) myStatus->player; if (!myPlayer) return; if (myPlayer->currTune) { delete myPlayer->currTune; myPlayer->currTune = NULL; } } /* * Return song information */ #define TFUNCTION xs_sidplay1_getsidinfo #define TTUNEINFO sidTuneInfo #define TTUNE sidTune #include "xs_sidplay.h" } /* extern "C" */ #endif /* HAVE_SIDPLAY1 */