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104 lines
2.8 KiB
104 lines
2.8 KiB
20 years ago
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/*
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**********************************************************************
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* sblive_voice.h -- EMU Voice Resource Manager header file
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* Copyright 1999, 2000 Creative Labs, Inc.
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*
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**********************************************************************
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*
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* Date Author Summary of changes
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* ---- ------ ------------------
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* October 20, 1999 Bertrand Lee base code release
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*
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**********************************************************************
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
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* USA.
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*
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**********************************************************************
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*/
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#ifndef _VOICEMGR_H
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#define _VOICEMGR_H
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#include "hwaccess.h"
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/* struct emu_voice.usage flags */
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#define VOICE_USAGE_FREE 0x01
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#define VOICE_USAGE_MIDI 0x02
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#define VOICE_USAGE_PLAYBACK 0x04
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/* struct emu_voice.flags flags */
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#define VOICE_FLAGS_STEREO 0x02
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#define VOICE_FLAGS_16BIT 0x04
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struct voice_param
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{
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/* FX bus amount send */
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u32 send_routing;
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// audigy only:
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u32 send_routing2;
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u32 send_dcba;
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// audigy only:
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u32 send_hgfe;
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u32 initial_fc;
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u32 fc_target;
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u32 initial_attn;
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u32 volume_target;
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u32 byampl_env_sustain;
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u32 byampl_env_decay;
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};
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struct voice_mem {
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int emupageindex;
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void *addr[BUFMAXPAGES];
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dma_addr_t dma_handle[BUFMAXPAGES];
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u32 pages;
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};
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struct emu_voice
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{
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struct emu10k1_card *card;
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u8 usage; /* Free, MIDI, playback */
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u8 num; /* Voice ID */
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u8 flags; /* Stereo/mono, 8/16 bit */
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u32 startloop;
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u32 endloop;
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u32 start;
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u32 initial_pitch;
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u32 pitch_target;
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struct voice_param params[2];
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struct voice_mem mem;
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};
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int emu10k1_voice_alloc_buffer(struct emu10k1_card *, struct voice_mem *, u32);
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void emu10k1_voice_free_buffer(struct emu10k1_card *, struct voice_mem *);
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int emu10k1_voice_alloc(struct emu10k1_card *, struct emu_voice *);
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void emu10k1_voice_free(struct emu_voice *);
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void emu10k1_voice_playback_setup(struct emu_voice *);
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void emu10k1_voices_start(struct emu_voice *, unsigned int, int);
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void emu10k1_voices_stop(struct emu_voice *, int);
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#endif /* _VOICEMGR_H */
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