143 lines
3.7 KiB
C
143 lines
3.7 KiB
C
/*
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* 86Box A hypervisor and IBM PC system emulator that specializes in
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* running old operating systems and software designed for IBM
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* PC systems and compatibles from 1981 through fairly recent
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* system designs based on the PCI bus.
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*
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* This file is part of the 86Box distribution.
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*
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* Sound Blaster emulation.
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*
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* Authors: Sarah Walker, <http://pcem-emulator.co.uk/>
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* Miran Grca, <mgrca8@gmail.com>
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* TheCollector1995, <mariogplayer@gmail.com>
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*
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* Copyright 2008-2018 Sarah Walker.
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* Copyright 2016-2018 Miran Grca.
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*/
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#ifndef SOUND_SND_SB_H
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# define SOUND_SND_SB_H
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#include <86box/snd_emu8k.h>
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#include <86box/snd_mpu401.h>
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#include <86box/snd_opl.h>
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#include <86box/snd_sb_dsp.h>
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#define SADLIB 1 /* No DSP */
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#define SB1 2 /* DSP v1.05 */
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#define SB15 3 /* DSP v2.00 */
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#define SB2 4 /* DSP v2.01 - needed for high-speed DMA */
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#define SBPRO 5 /* DSP v3.00 */
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#define SBPRO2 6 /* DSP v3.02 + OPL3 */
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#define SB16 7 /* DSP v4.05 + OPL3 */
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#define SBAWE32 8 /* DSP v4.13 + OPL3 */
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#define SBAWE64 9 /* DSP v4.16 + OPL3 */
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/* SB 2.0 CD version */
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typedef struct sb_ct1335_mixer_t
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{
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double master;
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double voice;
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double fm;
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double cd;
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uint8_t index;
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uint8_t regs[256];
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} sb_ct1335_mixer_t;
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/* SB PRO */
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typedef struct sb_ct1345_mixer_t
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{
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double master_l, master_r;
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double voice_l, voice_r;
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double fm_l, fm_r;
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double cd_l, cd_r;
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double line_l, line_r;
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double mic;
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/*see sb_ct1745_mixer for values for input selector*/
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int32_t input_selector;
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int input_filter;
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int in_filter_freq;
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int output_filter;
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int stereo;
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int stereo_isleft;
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uint8_t index;
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uint8_t regs[256];
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} sb_ct1345_mixer_t;
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/* SB16 and AWE32 */
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typedef struct sb_ct1745_mixer_t
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{
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double master_l, master_r;
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double voice_l, voice_r;
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double fm_l, fm_r;
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double cd_l, cd_r;
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double line_l, line_r;
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double mic;
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double speaker;
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int bass_l, bass_r;
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int treble_l, treble_r;
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int output_selector;
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#define OUTPUT_MIC 1
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#define OUTPUT_CD_R 2
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#define OUTPUT_CD_L 4
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#define OUTPUT_LINE_R 8
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#define OUTPUT_LINE_L 16
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int input_selector_left;
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int input_selector_right;
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#define INPUT_MIC 1
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#define INPUT_CD_R 2
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#define INPUT_CD_L 4
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#define INPUT_LINE_R 8
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#define INPUT_LINE_L 16
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#define INPUT_MIDI_R 32
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#define INPUT_MIDI_L 64
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int mic_agc;
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int32_t input_gain_L;
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int32_t input_gain_R;
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double output_gain_L;
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double output_gain_R;
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uint8_t index;
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uint8_t regs[256];
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} sb_ct1745_mixer_t;
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typedef struct sb_t
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{
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uint8_t opl_enabled, mixer_enabled;
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opl_t opl, opl2;
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sb_dsp_t dsp;
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union {
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sb_ct1335_mixer_t mixer_sb2;
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sb_ct1345_mixer_t mixer_sbpro;
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sb_ct1745_mixer_t mixer_sb16;
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};
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mpu_t *mpu;
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emu8k_t emu8k;
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void *gameport;
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int pos;
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uint8_t pos_regs[8];
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uint16_t opl_pnp_addr;
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} sb_t;
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extern void sb_ct1345_mixer_write(uint16_t addr, uint8_t val, void *p);
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extern uint8_t sb_ct1345_mixer_read(uint16_t addr, void *p);
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extern void sb_ct1345_mixer_reset(sb_t* sb);
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extern void sb_get_buffer_sbpro(int32_t *buffer, int len, void *p);
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extern void sbpro_filter_cd_audio(int channel, double *buffer, void *p);
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extern void sb_close(void *p);
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extern void sb_speed_changed(void *p);
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#endif /*SOUND_SND_SB_H*/
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