The-Homebrew-Cloud/Genesis-Plus-GX
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Genesis-Plus-GX/source/sound/sound.h

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restored from bountysource
2008-08-07 14:26:07 +02:00
/***************************************************************************************
+added proper license/copyright stuff ~modified file headers ~separated GUI engine from menus
2009-05-13 16:26:55 +02:00
* Genesis Plus
restored from bountysource
2008-08-07 14:26:07 +02:00
*
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Charles Mac Donald (original code)
+added proper license/copyright stuff ~modified file headers ~separated GUI engine from menus
2009-05-13 16:26:55 +02:00
* Eke-Eke (2007,2008,2009), additional code & fixes for the GCN/Wii port
restored from bountysource
2008-08-07 14:26:07 +02:00
*
* 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
*
* Sound Hardware
****************************************************************************************/
#ifndef _SOUND_H_
#define _SOUND_H_
/* Function prototypes */
[Core] ------ * improved 68k accuracy (initial reset timing + auto-vectored interrupts handling). * modified Z80 & 68k cores to directly use external cycle count instead of intermediate counters. * improved Z80 & 68k cpu execution/synchronization accuracy, now use Master Clock as common clock reference. * improved PSG & FM chips synchronization with CPU execution (fixed point precision). * completely rewrote sound output processing & mixing: sound chips are now clocked with exact output frame rate to ensure 100% smooth video & audio playback, with no lag or skipping, while still rendering an accurate number of samples per frame. This will also make fast-forward implementation (video AND sound) more trivial. * improved color accuracy in VDP highlight mode to match results observed on real hardware. * improved sprites processing timing accuracy: fixes (un)masked sprites in Mickey Mania (3D level), Sonic 2 (VS mode). * improved horizontal blanking & HINT/VINT occurrence timing accuracy, as measured on real hardware. * improved H-Counter accuracy in 40-cell mode, as measured on real hardware. * optimized Z80 bus status signals * usual code cleanup [GCN/WII] --------- fixed ASNDLIB exit when returning to game fixed audio/video startup sync modified audio back-end engine according to new audio processing core (see above)
2010-01-24 12:41:53 +01:00
extern void sound_init(void);
extern void sound_reset(void);
.fixed YM2413 context restore when changing options .added YM2413 context to Master System savestates .removed support for older savestates format (1.3.x, 1.4.x), use 1.5.0 to convert old savestates to new (1.5.x) format
2011-04-30 14:56:01 +02:00
extern void sound_restore(void);
[Core/VDP] --------------- * improved VBLANK flag accuracy, as observed on real hardware. * improved DMA operations accuracy, writes are now performed on a scanline basis: fixes Gaiares (flickering title screen). * improved DMA Fill timing accuracy. * fixed DMA with bad code values: fixes Williams Arcade Classics (corrupted gfx after soft reset). * fixed horizontal resolution changes during HBLANK: fixes Bugs Bunny in Double Trouble (2nd stage). * fixed Vertical Counter in interlace mode 1, as observed on real hardware. * fixed horizontal border width, as observed on real hardware. * various code improvments & optimizations. [Core/Extra] --------------- * improved savestate format: added DMA, SVP, cartridge mapping & internal registers state informations * improved unlicensed ROM mappers emulation * added Chinese Fighters III mapper support * added Top Fighter mapper support * fixed Barver Battle Saga mapper support * fixed cartridge hardware soft-reset (Game Genie, SVP, ...) * fixed Game Genie registers byte reads
2010-12-04 18:13:55 +01:00
extern int sound_context_save(uint8 *state);
extern int sound_context_load(uint8 *state, char *version);
[Core] ------ * improved 68k accuracy (initial reset timing + auto-vectored interrupts handling). * modified Z80 & 68k cores to directly use external cycle count instead of intermediate counters. * improved Z80 & 68k cpu execution/synchronization accuracy, now use Master Clock as common clock reference. * improved PSG & FM chips synchronization with CPU execution (fixed point precision). * completely rewrote sound output processing & mixing: sound chips are now clocked with exact output frame rate to ensure 100% smooth video & audio playback, with no lag or skipping, while still rendering an accurate number of samples per frame. This will also make fast-forward implementation (video AND sound) more trivial. * improved color accuracy in VDP highlight mode to match results observed on real hardware. * improved sprites processing timing accuracy: fixes (un)masked sprites in Mickey Mania (3D level), Sonic 2 (VS mode). * improved horizontal blanking & HINT/VINT occurrence timing accuracy, as measured on real hardware. * improved H-Counter accuracy in 40-cell mode, as measured on real hardware. * optimized Z80 bus status signals * usual code cleanup [GCN/WII] --------- fixed ASNDLIB exit when returning to game fixed audio/video startup sync modified audio back-end engine according to new audio processing core (see above)
2010-01-24 12:41:53 +01:00
extern int sound_update(unsigned int cycles);
fixed YM2612 reset on "soft reset" small optimizations & fixes in FIR resampler code
2010-01-27 08:20:44 +01:00
extern void fm_reset(unsigned int cycles);
[Core] ------ * improved 68k accuracy (initial reset timing + auto-vectored interrupts handling). * modified Z80 & 68k cores to directly use external cycle count instead of intermediate counters. * improved Z80 & 68k cpu execution/synchronization accuracy, now use Master Clock as common clock reference. * improved PSG & FM chips synchronization with CPU execution (fixed point precision). * completely rewrote sound output processing & mixing: sound chips are now clocked with exact output frame rate to ensure 100% smooth video & audio playback, with no lag or skipping, while still rendering an accurate number of samples per frame. This will also make fast-forward implementation (video AND sound) more trivial. * improved color accuracy in VDP highlight mode to match results observed on real hardware. * improved sprites processing timing accuracy: fixes (un)masked sprites in Mickey Mania (3D level), Sonic 2 (VS mode). * improved horizontal blanking & HINT/VINT occurrence timing accuracy, as measured on real hardware. * improved H-Counter accuracy in 40-cell mode, as measured on real hardware. * optimized Z80 bus status signals * usual code cleanup [GCN/WII] --------- fixed ASNDLIB exit when returning to game fixed audio/video startup sync modified audio back-end engine according to new audio processing core (see above)
2010-01-24 12:41:53 +01:00
extern void fm_write(unsigned int cycles, unsigned int address, unsigned int data);
extern unsigned int fm_read(unsigned int cycles, unsigned int address);
extern void psg_write(unsigned int cycles, unsigned int data);
restored from bountysource
2008-08-07 14:26:07 +02:00
#endif /* _SOUND_H_ */
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