From d40ae99422e118188a7f48055dc340c6aca022aa Mon Sep 17 00:00:00 2001 From: Kitty Draper Date: Sat, 5 Mar 2011 21:39:25 -0500 Subject: first commit --- source/spctool.cpp | 201 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 201 insertions(+) create mode 100644 source/spctool.cpp (limited to 'source/spctool.cpp') diff --git a/source/spctool.cpp b/source/spctool.cpp new file mode 100644 index 0000000..011498c --- /dev/null +++ b/source/spctool.cpp @@ -0,0 +1,201 @@ +/******************************************************************************* + Snes9x - Portable Super Nintendo Entertainment System (TM) emulator. + + (c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com) and + Jerremy Koot (jkoot@snes9x.com) + + (c) Copyright 2001 - 2004 John Weidman (jweidman@slip.net) + + (c) Copyright 2002 - 2004 Brad Jorsch (anomie@users.sourceforge.net), + funkyass (funkyass@spam.shaw.ca), + Joel Yliluoma (http://iki.fi/bisqwit/) + Kris Bleakley (codeviolation@hotmail.com), + Matthew Kendora, + Nach (n-a-c-h@users.sourceforge.net), + Peter Bortas (peter@bortas.org) and + zones (kasumitokoduck@yahoo.com) + + C4 x86 assembler and some C emulation code + (c) Copyright 2000 - 2003 zsKnight (zsknight@zsnes.com), + _Demo_ (_demo_@zsnes.com), and Nach + + C4 C++ code + (c) Copyright 2003 Brad Jorsch + + DSP-1 emulator code + (c) Copyright 1998 - 2004 Ivar (ivar@snes9x.com), _Demo_, Gary Henderson, + John Weidman, neviksti (neviksti@hotmail.com), + Kris Bleakley, Andreas Naive + + DSP-2 emulator code + (c) Copyright 2003 Kris Bleakley, John Weidman, neviksti, Matthew Kendora, and + Lord Nightmare (lord_nightmare@users.sourceforge.net + + OBC1 emulator code + (c) Copyright 2001 - 2004 zsKnight, pagefault (pagefault@zsnes.com) and + Kris Bleakley + Ported from x86 assembler to C by sanmaiwashi + + SPC7110 and RTC C++ emulator code + (c) Copyright 2002 Matthew Kendora with research by + zsKnight, John Weidman, and Dark Force + + S-DD1 C emulator code + (c) Copyright 2003 Brad Jorsch with research by + Andreas Naive and John Weidman + + S-RTC C emulator code + (c) Copyright 2001 John Weidman + + ST010 C++ emulator code + (c) Copyright 2003 Feather, Kris Bleakley, John Weidman and Matthew Kendora + + Super FX x86 assembler emulator code + (c) Copyright 1998 - 2003 zsKnight, _Demo_, and pagefault + + Super FX C emulator code + (c) Copyright 1997 - 1999 Ivar, Gary Henderson and John Weidman + + + SH assembler code partly based on x86 assembler code + (c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se) + + + Specific ports contains the works of other authors. See headers in + individual files. + + Snes9x homepage: http://www.snes9x.com + + Permission to use, copy, modify and distribute Snes9x in both binary and + source form, for non-commercial purposes, is hereby granted without fee, + providing that this license information and copyright notice appear with + all copies and any derived work. + + This software is provided 'as-is', without any express or implied + warranty. In no event shall the authors be held liable for any damages + arising from the use of this software. + + Snes9x is freeware for PERSONAL USE only. Commercial users should + seek permission of the copyright holders first. Commercial use includes + charging money for Snes9x or software derived from Snes9x. + + The copyright holders request that bug fixes and improvements to the code + should be forwarded to them so everyone can benefit from the modifications + in future versions. + + Super NES and Super Nintendo Entertainment System are trademarks of + Nintendo Co., Limited and its subsidiary companies. +*******************************************************************************/ +#include "snes9x.h" +#include "spctool/dsp.h" +#include "spctool/spc700.h" +#include "spctool/soundmod.h" +#include "apu.h" + +bool8 S9xOpenSoundDevice (int, bool8, int); + +void S9xSetPlaybackRate (uint32 rate) +{ + DOpt SmpOpt; + + SmpOpt.Smp8bit=false; + SmpOpt.SmpMono=false; + SmpOpt.IntType=IntC; + SmpOpt.OldBRE=false; + SmpOpt.MixRout=1; + SetSPUOpt (rate, SmpOpt); + +// so.playback_rate = playback_rate; +// so.err_rate = (uint32) (SNES_SCANLINE_TIME * FIXED_POINT / (1.0 / (double) so.playback_rate)); + } + +bool8 S9xSetSoundMute (bool8 mute) +{ + return (TRUE); +} + +START_EXTERN_C +bool8 S9xInitSound (int mode, bool8 stereo, int buffer_size) +{ + if (!(mode & 7)) + return (TRUE); + + S9xSetSoundMute (TRUE); + if (!S9xOpenSoundDevice (mode, stereo, buffer_size)) + { + S9xMessage (S9X_ERROR, S9X_SOUND_DEVICE_OPEN_FAILED, + "Sound device open failed"); + return (FALSE); + } + return (TRUE); +} + +void TraceSPC (unsigned char *PC, unsigned short YA, unsigned char X, + SPCFlags PS, unsigned char *SP) +{ + APURegisters.YA.W = YA; + APURegisters.X = X; + APURegisters.S = SP - IAPU.RAM; + IAPU.PC = PC; + IAPU._Carry = PS.C; + IAPU._Zero = !PS.Z | (PS.N << 7); + IAPU._Overflow = PS.V; + APURegisters.P = *(uint8 *) &PS; + S9xTraceAPU (); +} + +bool8 S9xInitAPU () +{ + void *SPCBase; //Base pointer and aligned pointer to SPC RAM + + SPCBase=malloc(131072); //Allocate memory for SPC RAM + memset(SPCBase, 0, 131072); + + IAPU.RAM=(uint8 *) InitSPU(SPCBase); //Initialize SPU w/ ptr to SPC RAM (Call only once) + + S9xSetPlaybackRate (22050); + ResetSPU(20); //Reset SPU with pre-amp level of 30 +// _SetSPCDbg(TraceSPC); //Install debug handler + return (TRUE); +} + +void S9xResetAPU () +{ + ResetSPU(20); + IAPU.RAM [0xf1] = 0x80; + _FixSPC (0xffc0, 0, 0, 0, 0, 0xff); +// FixDSP (); +} + +extern "C" void EDSP (uint8 *, int32); + +void S9xMixSamplesO (uint8 *buffer, int sample_count, int byte_offset) +{ +// _EmuDSP (buffer + byte_offset, sample_count / 2); + + EDSP (buffer + byte_offset, sample_count / 2); +#if 0 +for (int i = 0; i < 32; i++) +printf ("%02x,", *(buffer + byte_offset + i)); +printf ("\n"); +#endif +} +END_EXTERN_C + +void S9xFixSoundAfterSnapshotLoad () +{ +} + +void S9xSetSoundControl (int) +{ +} + +#ifdef DEBUGGER +START_EXTERN_C +void S9xDeinitAPU () +{ +} + +END_EXTERN_C +#endif + -- cgit v1.2.3