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Diffstat (limited to 'src/libxineadec/nosefart/nes_apu.h')
-rw-r--r--src/libxineadec/nosefart/nes_apu.h335
1 files changed, 0 insertions, 335 deletions
diff --git a/src/libxineadec/nosefart/nes_apu.h b/src/libxineadec/nosefart/nes_apu.h
deleted file mode 100644
index 9efbb560e..000000000
--- a/src/libxineadec/nosefart/nes_apu.h
+++ /dev/null
@@ -1,335 +0,0 @@
-/*
-** Nofrendo (c) 1998-2000 Matthew Conte (matt@conte.com)
-**
-**
-** This program is free software; you can redistribute it and/or
-** modify it under the terms of version 2 of the GNU Library General
-** Public License as published by the Free Software Foundation.
-**
-** 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
-** Library General Public License for more details. To obtain a
-** copy of the GNU Library General Public License, write to the Free
-** Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-**
-** Any permitted reproduction of these routines, in whole or in part,
-** must bear this legend.
-**
-**
-** nes_apu.h
-**
-** NES APU emulation header file
-** $Id: nes_apu.h,v 1.2 2003/01/09 19:50:03 jkeil Exp $
-*/
-
-#ifndef _NES_APU_H_
-#define _NES_APU_H_
-
-#ifdef __GNUC__
-#define INLINE static inline
-#elif defined(WIN32)
-#define INLINE static __inline
-#else
-#define INLINE static
-#endif
-
-/* define this for realtime generated noise */
-#define REALTIME_NOISE
-
-#define APU_WRA0 0x4000
-#define APU_WRA1 0x4001
-#define APU_WRA2 0x4002
-#define APU_WRA3 0x4003
-#define APU_WRB0 0x4004
-#define APU_WRB1 0x4005
-#define APU_WRB2 0x4006
-#define APU_WRB3 0x4007
-#define APU_WRC0 0x4008
-#define APU_WRC2 0x400A
-#define APU_WRC3 0x400B
-#define APU_WRD0 0x400C
-#define APU_WRD2 0x400E
-#define APU_WRD3 0x400F
-#define APU_WRE0 0x4010
-#define APU_WRE1 0x4011
-#define APU_WRE2 0x4012
-#define APU_WRE3 0x4013
-
-#define APU_OAMDMA 0x4014
-#define APU_SMASK 0x4015
-#define APU_JOY0 0x4016
-#define APU_JOY1 0x4017
-
-/* length of generated noise */
-#define APU_NOISE_32K 0x7FFF
-#define APU_NOISE_93 93
-
-#define APU_BASEFREQ (NES_MASTER_CLOCK / 12)
-
-/* to/from 16.16 fixed point */
-#define APU_TO_FIXED(x) ((x) << 16)
-#define APU_FROM_FIXED(x) ((x) >> 16)
-
-
-/* channel structures */
-/* As much data as possible is precalculated,
-** to keep the sample processing as lean as possible
-*/
-
-typedef struct rectangle_s
-{
- uint8 regs[4];
-
- boolean enabled;
-
- int32 phaseacc;
- int32 freq;
- int32 output_vol;
- boolean fixed_envelope;
- boolean holdnote;
- uint8 volume;
-
- int32 sweep_phase;
- int32 sweep_delay;
- boolean sweep_on;
- uint8 sweep_shifts;
- uint8 sweep_length;
- boolean sweep_inc;
- int32 freq_limit;
-
- int32 env_phase;
- int32 env_delay;
- uint8 env_vol;
-
- int vbl_length;
- uint8 adder;
- int duty_flip;
-} rectangle_t;
-
-/*
-enum
-{
- COUNTMODE_LOAD,
- COUNTMODE_COUNT
-};
-*/
-
-typedef struct triangle_s
-{
- uint8 regs[3];
-
- boolean enabled;
-
- int32 freq;
- int32 phaseacc;
- int32 output_vol;
-
- uint8 adder;
-
- boolean holdnote;
- boolean counter_started;
- /* quasi-hack */
- int write_latency;
-
-// boolean countmode;
-
- int vbl_length;
- int linear_length;
-
-} triangle_t;
-
-
-typedef struct noise_s
-{
- uint8 regs[3];
-
- boolean enabled;
-
- int32 freq;
- int32 phaseacc;
- int32 output_vol;
-
- int32 env_phase;
- int32 env_delay;
- uint8 env_vol;
- boolean fixed_envelope;
- boolean holdnote;
-
- uint8 volume;
-
- int vbl_length;
-
-#ifdef REALTIME_NOISE
- uint8 xor_tap;
-#else
- boolean short_sample;
- int cur_pos;
-#endif /* REALTIME_NOISE */
-} noise_t;
-
-typedef struct dmc_s
-{
- uint8 regs[4];
-
- /* bodge for timestamp queue */
- boolean enabled;
-
- int32 freq;
- int32 phaseacc;
- int32 output_vol;
-
- uint32 address;
- uint32 cached_addr;
- int dma_length;
- int cached_dmalength;
- uint8 cur_byte;
-
- boolean looping;
- boolean irq_gen;
- boolean irq_occurred;
-
-} dmc_t;
-
-enum
-{
- APU_FILTER_NONE,
- APU_FILTER_LOWPASS,
- APU_FILTER_WEIGHTED
-};
-
-typedef struct
-{
- uint32 min_range, max_range;
- uint8 (*read_func)(uint32 address);
-} apu_memread;
-
-typedef struct
-{
- uint32 min_range, max_range;
- void (*write_func)(uint32 address, uint8 value);
-} apu_memwrite;
-
-/* external sound chip stuff */
-typedef struct apuext_s
-{
- void (*init)(void);
- void (*shutdown)(void);
- void (*reset)(void);
- int32 (*process)(void);
- apu_memread *mem_read;
- apu_memwrite *mem_write;
-} apuext_t;
-
-
-/* APU queue structure */
-#define APUQUEUE_SIZE 4096
-#define APUQUEUE_MASK (APUQUEUE_SIZE - 1)
-
-/* apu ring buffer member */
-typedef struct apudata_s
-{
- uint32 timestamp, address;
- uint8 value;
-} apudata_t;
-
-
-typedef struct apu_s
-{
- rectangle_t rectangle[2];
- triangle_t triangle;
- noise_t noise;
- dmc_t dmc;
- uint8 enable_reg;
-
- apudata_t queue[APUQUEUE_SIZE];
- int q_head, q_tail;
- uint32 elapsed_cycles;
-
- void *buffer; /* pointer to output buffer */
- int num_samples;
-
- int mix_enable; /* $$$ben : should improve emulation */
- int filter_type;
-
- int32 cycle_rate;
-
- int sample_rate;
- int sample_bits;
- int refresh_rate;
-
- void (*process)(void *buffer, int num_samples);
-
- /* $$$ ben : last error string */
- const char * errstr;
-
- /* external sound chip */
- apuext_t *ext;
-} apu_t;
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-/* Function prototypes */
-extern apu_t *apu_create(int sample_rate, int refresh_rate, int sample_bits, boolean stereo);
-extern void apu_destroy(apu_t *apu);
-extern int apu_setext(apu_t *apu, apuext_t *ext);
-extern int apu_setfilter(int filter_type);
-extern void apu_process(void *buffer, int num_samples);
-extern void apu_reset(void);
-extern int apu_setchan(int chan, boolean enabled);
-extern int32 apu_getcyclerate(void);
-extern apu_t *apu_getcontext(void);
-
-extern uint8 apu_read(uint32 address);
-extern void apu_write(uint32 address, uint8 value);
-
-/* for visualization */
-extern void apu_getpcmdata(void **data, int *num_samples, int *sample_bits);
-
-extern void apu_setcontext(apu_t *src_apu);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* _NES_APU_H_ */
-
-/*
-** $Log: nes_apu.h,v $
-** Revision 1.2 2003/01/09 19:50:03 jkeil
-** NSF audio files were crashing on SPARC.
-**
-** - Define the correct HOST_ENDIAN for SPARC
-** - remove unaligned memory accesses
-**
-** Revision 1.1 2003/01/08 07:04:35 tmmm
-** initial import of Nosefart sources
-**
-** Revision 1.12 2000/07/04 04:54:48 matt
-** minor changes that helped with MAME
-**
-** Revision 1.11 2000/07/03 02:18:53 matt
-** much better external module exporting
-**
-** Revision 1.10 2000/06/26 05:00:37 matt
-** cleanups
-**
-** Revision 1.9 2000/06/23 03:29:28 matt
-** cleaned up external sound inteface
-**
-** Revision 1.8 2000/06/20 04:06:16 matt
-** migrated external sound definition to apu module
-**
-** Revision 1.7 2000/06/20 00:07:35 matt
-** added convenience members to apu_t struct
-**
-** Revision 1.6 2000/06/09 16:49:02 matt
-** removed all floating point from sound generation
-**
-** Revision 1.5 2000/06/09 15:12:28 matt
-** initial revision
-**
-*/
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