142 lines
2.9 KiB
C
142 lines
2.9 KiB
C
// Copyright (C) 2003-2008 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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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 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#ifndef UCODE_AX_STRUCTS
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#define UCODE_AX_STRUCTS
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struct PBMixer
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{
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u16 volume_left;
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u16 unknown;
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u16 volume_right;
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u16 unknown2;
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u16 unknown3[8];
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u16 unknown4[6];
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};
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struct PBInitialTimeDelay
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{
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u16 unknown[7];
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};
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// Update data - read these each 1ms subframe and use them!
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// It seems that to provide higher time precisions for MIDI events, some games
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// use this thing to update the parameter blocks per 1ms sub-block (a block is 5ms).
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// Using this data should fix games that are missing MIDI notes.
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struct PBUpdates
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{
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u16 num_updates[5];
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u16 data_hi; // These point to main RAM. Not sure about the structure of the data.
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u16 data_lo;
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};
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struct PBUnknown
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{
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s16 unknown[9];
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};
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struct PBVolumeEnvelope
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{
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u16 cur_volume;
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s16 cur_volume_delta;
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};
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struct PBUnknown2
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{
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u16 unknown_reserved[3];
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};
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struct PBAudioAddr
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{
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u16 looping;
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u16 sample_format;
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u16 loop_addr_hi; // Start of loop (this will point to a shared "zero" buffer if one-shot mode is active)
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u16 loop_addr_lo;
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u16 end_addr_hi; // End of sample (and loop), inclusive
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u16 end_addr_lo;
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u16 cur_addr_hi;
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u16 cur_addr_lo;
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};
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struct PBADPCMInfo
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{
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s16 coefs[16];
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u16 unknown;
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u16 pred_scale;
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s16 yn1;
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s16 yn2;
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};
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struct PBSampleRateConverter
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{
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u16 ratio_hi;
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u16 ratio_lo;
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u16 cur_addr_frac;
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u16 last_samples[4];
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};
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struct PBADPCMLoopInfo
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{
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u16 pred_scale;
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u16 yn1;
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u16 yn2;
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};
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struct AXParamBlock
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{
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u16 next_pb_hi;
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u16 next_pb_lo;
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u16 this_pb_hi;
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u16 this_pb_lo;
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u16 src_type; // Type of sample rate converter (none, ?, linear)
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u16 unknown1;
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u16 mixer_control;
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u16 running; // 1=RUN 0=STOP
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u16 is_stream; // 1 = stream, 0 = one shot
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PBMixer mixer;
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PBInitialTimeDelay initial_time_delay;
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PBUpdates updates;
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PBUnknown unknown2;
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PBVolumeEnvelope vol_env;
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PBUnknown2 unknown3;
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PBAudioAddr audio_addr;
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PBADPCMInfo adpcm;
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PBSampleRateConverter src;
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PBADPCMLoopInfo adpcm_loop_info;
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u16 unknown_maybe_padding[3];
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};
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enum {
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AUDIOFORMAT_ADPCM = 0,
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AUDIOFORMAT_PCM8 = 0x19,
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AUDIOFORMAT_PCM16 = 0xA,
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};
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enum {
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SRCTYPE_LINEAR = 1,
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SRCTYPE_NEAREST = 2,
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MIXCONTROL_RAMPING = 8,
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};
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#endif
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