CydandClaude Fable 5
a0a4260fd4
Vendored 86Box EMU8000 core (GPL-2, emu8k.cpp/.h + shim) plus vweawe.cpp: two cards at the production addresses (0x620/0x640 register triplets), rear-card DSP/mixer stub at 0x240, synthesis on an autonomous render thread with direct winmm output so sustained voices ride through emulation-thread stalls (RIO staging retries) like the real silicon did. WC sample-counter interpolation between render chunks keeps HMI SOS busy-waits fast. VWE_AWE32/VWE_AWE_ROM/VWE_AWE_RAM_KB/VWE_AWE_SHIFT/ VWE_AWE_LEAD_MS/VWE_AWE_DUMP/VWE_AWE_LOG env knobs. emulator/roms: the AWE32 1MGM GM ROM dumped from our own pod card (SF2) plus the reconstructed raw image the emulated EMU8000 loads. The HMI driver refuses the AUDIO*.RES SoundFont upload without it (banks declare irom=1MGM) -- that was the root cause of the first silent runs; full debug chain in SOUND-NOTES.md. Repo serves the pod-owner community only. .gitignore: drop the ROM excludes and un-ignore ALPHA_1/ and sda4/ (committed separately). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
49 lines
2.1 KiB
C
49 lines
2.1 KiB
C
/* Minimal 86Box environment shim for the vendored EMU8000 core (emu8k.cpp).
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* Supplies exactly what snd_emu8k.c pulled from 86Box headers:
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* - io_sethandler/io_removehandler (implemented in vweawe.cpp on top of
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* DOSBox-X IO_Register*Handler, with the 86Box handler signatures)
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* - wavetable_pos_global (the render-target sample clock; vweawe.cpp sets
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* it per mixer block instead of 86Box's per-frame sound clock)
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* - pclog/pclog_ex/fatal logging and the UNUSED() parameter marker
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* - emu8k_shim_rom_fopen(): optional AWE32 GM ROM via $VWE_AWE_ROM
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*/
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#ifndef VWE_EMU8K_SHIM_H
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#define VWE_EMU8K_SHIM_H
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#include <stdarg.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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/* 86Box io.h handler signatures (priv-pointer style) */
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typedef uint8_t (*emu8k_io_inb_t)(uint16_t addr, void *priv);
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typedef uint16_t (*emu8k_io_inw_t)(uint16_t addr, void *priv);
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typedef uint32_t (*emu8k_io_inl_t)(uint16_t addr, void *priv);
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typedef void (*emu8k_io_outb_t)(uint16_t addr, uint8_t val, void *priv);
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typedef void (*emu8k_io_outw_t)(uint16_t addr, uint16_t val, void *priv);
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typedef void (*emu8k_io_outl_t)(uint16_t addr, uint32_t val, void *priv);
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void io_sethandler(uint16_t base, int size,
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emu8k_io_inb_t inb, emu8k_io_inw_t inw, emu8k_io_inl_t inl,
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emu8k_io_outb_t outb, emu8k_io_outw_t outw,
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emu8k_io_outl_t outl, void *priv);
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void io_removehandler(uint16_t base, int size,
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emu8k_io_inb_t inb, emu8k_io_inw_t inw,
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emu8k_io_inl_t inl, emu8k_io_outb_t outb,
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emu8k_io_outw_t outw, emu8k_io_outl_t outl, void *priv);
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/* render-target sample position for emu8k_update() (86Box sound.h) */
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extern int wavetable_pos_global;
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FILE *emu8k_shim_rom_fopen(void);
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/* samples elapsed since the last mixer render (WC interpolation) */
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unsigned emu8k_shim_wc_extra(void);
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#define pclog(...) fprintf(stderr, __VA_ARGS__)
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#define pclog_ex(fmt, ap) vfprintf(stderr, fmt, ap)
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#define fatal(...) fprintf(stderr, __VA_ARGS__)
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#define UNUSED(arg) arg
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#endif
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