eax.h

   1 /*                      DirectSound
   2  *
   3  * Copyright 2010 Chris Robinson
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 typedef struct _EAXVECTOR {
  21     FLOAT x, y, z;
  22 } EAXVECTOR;
  23
  24 DEFINE_GUID(DSPROPSETID_EAX30_ListenerProperties, 0xa8fa6882, 0xb476, 0x11d3, 0xbd, 0xb9, 0x00, 0xc0, 0xf0, 0x2d, 0xdf, 0x87);
  25 typedef enum {
  26     DSPROPERTY_EAX30LISTENER_NONE,
  27     DSPROPERTY_EAX30LISTENER_ALLPARAMETERS,
  28     DSPROPERTY_EAX30LISTENER_ENVIRONMENT,
  29     DSPROPERTY_EAX30LISTENER_ENVIRONMENTSIZE,
  30     DSPROPERTY_EAX30LISTENER_ENVIRONMENTDIFFUSION,
  31     DSPROPERTY_EAX30LISTENER_ROOM,
  32     DSPROPERTY_EAX30LISTENER_ROOMHF,
  33     DSPROPERTY_EAX30LISTENER_ROOMLF,
  34     DSPROPERTY_EAX30LISTENER_DECAYTIME,
  35     DSPROPERTY_EAX30LISTENER_DECAYHFRATIO,
  36     DSPROPERTY_EAX30LISTENER_DECAYLFRATIO,
  37     DSPROPERTY_EAX30LISTENER_REFLECTIONS,
  38     DSPROPERTY_EAX30LISTENER_REFLECTIONSDELAY,
  39     DSPROPERTY_EAX30LISTENER_REFLECTIONSPAN,
  40     DSPROPERTY_EAX30LISTENER_REVERB,
  41     DSPROPERTY_EAX30LISTENER_REVERBDELAY,
  42     DSPROPERTY_EAX30LISTENER_REVERBPAN,
  43     DSPROPERTY_EAX30LISTENER_ECHOTIME,
  44     DSPROPERTY_EAX30LISTENER_ECHODEPTH,
  45     DSPROPERTY_EAX30LISTENER_MODULATIONTIME,
  46     DSPROPERTY_EAX30LISTENER_MODULATIONDEPTH,
  47     DSPROPERTY_EAX30LISTENER_AIRABSORPTIONHF,
  48     DSPROPERTY_EAX30LISTENER_HFREFERENCE,
  49     DSPROPERTY_EAX30LISTENER_LFREFERENCE,
  50     DSPROPERTY_EAX30LISTENER_ROOMROLLOFFFACTOR,
  51     DSPROPERTY_EAX30LISTENER_FLAGS
  52 } DSPROPERTY_EAX30_LISTENERPROPERTY;
  53
  54 /* Stores the value being set, but does not apply it */
  55 #define DSPROPERTY_EAX30LISTENER_DEFERRED               0x80000000
  56 /* The lack of the deferred flag forces a call to CommitDeferredSettings(),
  57  * applying *all* deferred settings, including the EAX property being set */
  58 #define DSPROPERTY_EAX30LISTENER_IMMEDIATE              0x00000000
  59 /* Same as IMMEDIATE; causes a commit of deferred properties but implies no
  60  * extra property being set */
  61 #define DSPROPERTY_EAX30LISTENER_COMMITDEFERREDSETTINGS 0x00000000
  62
  63 typedef struct _EAX30LISTENERPROPERTIES {
  64     DWORD dwEnvironment;
  65     FLOAT flEnvironmentSize;
  66     FLOAT flEnvironmentDiffusion;
  67     LONG lRoom;
  68     LONG lRoomHF;
  69     LONG lRoomLF;
  70     FLOAT flDecayTime;
  71     FLOAT flDecayHFRatio;
  72     FLOAT flDecayLFRatio;
  73     LONG lReflections;
  74     FLOAT flReflectionsDelay;
  75     EAXVECTOR vReflectionsPan;
  76     LONG lReverb;
  77     FLOAT flReverbDelay;
  78     EAXVECTOR vReverbPan;
  79     FLOAT flEchoTime;
  80     FLOAT flEchoDepth;
  81     FLOAT flModulationTime;
  82     FLOAT flModulationDepth;
  83     FLOAT flAirAbsorptionHF;
  84     FLOAT flHFReference;
  85     FLOAT flLFReference;
  86     FLOAT flRoomRolloffFactor;
  87     DWORD dwFlags;
  88 } EAX30LISTENERPROPERTIES, *LPEAX30LISTENERPROPERTIES;
  89
  90 /* These flags determine what properties are modified when the environment size
  91    is changed */
  92 #define EAX30LISTENERFLAGS_DECAYTIMESCALE        0x00000001
  93 #define EAX30LISTENERFLAGS_REFLECTIONSSCALE      0x00000002
  94 #define EAX30LISTENERFLAGS_REFLECTIONSDELAYSCALE 0x00000004
  95 #define EAX30LISTENERFLAGS_REVERBSCALE           0x00000008
  96 #define EAX30LISTENERFLAGS_REVERBDELAYSCALE      0x00000010
  97 /* This flag limits the high frequency decay according to air absorption */
  98 #define EAX30LISTENERFLAGS_DECAYHFLIMIT          0x00000020
  99 #define EAX30LISTENERFLAGS_ECHOTIMESCALE         0x00000040
 100 #define EAX30LISTENERFLAGS_MODTIMESCALE          0x00000080
 101
 102
 103 /* EAX environment presets */
 104 //  Env   Size   Diffus    Room    RoomHF  RoomLF  DecTm   DcHF    DcLF    Refl    RefDel  Ref Pan             Revb    RevDel   Rev Pan            EchTm   EchDp   ModTm   ModDp   AirAbs  HFRef     LFRef   RRlOff  FLAGS
 105 #define REVERB_PRESET_GENERIC \
 106     {0,   7.5f,   1.000f,  -1000,  -100,   0,      1.49f,  0.83f,  1.00f,  -2602,  0.007f,  {0.0f,0.0f,0.0f},  200,    0.011f,  {0.0f,0.0f,0.0f},  0.250f, 0.000f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x3f }
 107 #define REVERB_PRESET_PADDEDCELL \
 108     {1,   1.4f,   1.000f,  -1000,  -6000,  0,      0.17f,  0.10f,  1.00f,  -1204,  0.001f,  {0.0f,0.0f,0.0f},  207,    0.002f,  {0.0f,0.0f,0.0f},  0.250f, 0.000f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x3f }
 109 #define REVERB_PRESET_ROOM \
 110     {2,   1.9f,   1.000f,  -1000,  -454,   0,      0.40f,  0.83f,  1.00f,  -1646,  0.002f,  {0.0f,0.0f,0.0f},  53,     0.003f,  {0.0f,0.0f,0.0f},  0.250f, 0.000f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x3f }
 111 #define REVERB_PRESET_BATHROOM \
 112     {3,   1.4f,   1.000f,  -1000,  -1200,  0,      1.49f,  0.54f,  1.00f,  -370,   0.007f,  {0.0f,0.0f,0.0f},  1030,   0.011f,  {0.0f,0.0f,0.0f},  0.250f, 0.000f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x3f }
 113 #define REVERB_PRESET_LIVINGROOM \
 114     {4,   2.5f,   1.000f,  -1000,  -6000,  0,      0.50f,  0.10f,  1.00f,  -1376,  0.003f,  {0.0f,0.0f,0.0f},  -1104,  0.004f,  {0.0f,0.0f,0.0f},  0.250f, 0.000f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x3f }
 115 #define REVERB_PRESET_STONEROOM \
 116     {5,   11.6f,  1.000f,  -1000,  -300,   0,      2.31f,  0.64f,  1.00f,  -711,   0.012f,  {0.0f,0.0f,0.0f},  83,     0.017f,  {0.0f,0.0f,0.0f},  0.250f, 0.000f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x3f }
 117 #define REVERB_PRESET_AUDITORIUM \
 118     {6,   21.6f,  1.000f,  -1000,  -476,   0,      4.32f,  0.59f,  1.00f,  -789,   0.020f,  {0.0f,0.0f,0.0f},  -289,   0.030f,  {0.0f,0.0f,0.0f},  0.250f, 0.000f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x3f }
 119 #define REVERB_PRESET_CONCERTHALL \
 120     {7,   19.6f,  1.000f,  -1000,  -500,   0,      3.92f,  0.70f,  1.00f,  -1230,  0.020f,  {0.0f,0.0f,0.0f},  -02,    0.029f,  {0.0f,0.0f,0.0f},  0.250f, 0.000f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x3f }
 121 #define REVERB_PRESET_CAVE \
 122     {8,   14.6f,  1.000f,  -1000,  0,      0,      2.91f,  1.30f,  1.00f,  -602,   0.015f,  {0.0f,0.0f,0.0f},  -302,   0.022f,  {0.0f,0.0f,0.0f},  0.250f, 0.000f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x1f }
 123 #define REVERB_PRESET_ARENA \
 124     {9,   36.2f,  1.000f,  -1000,  -698,   0,      7.24f,  0.33f,  1.00f,  -1166,  0.020f,  {0.0f,0.0f,0.0f},  16,     0.030f,  {0.0f,0.0f,0.0f},  0.250f, 0.000f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x3f }
 125 #define REVERB_PRESET_HANGAR \
 126     {10,  50.3f,  1.000f,  -1000,  -1000,  0,      10.05f, 0.23f,  1.00f,  -602,   0.020f,  {0.0f,0.0f,0.0f},  198,    0.030f,  {0.0f,0.0f,0.0f},  0.250f, 0.000f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x3f }
 127 #define REVERB_PRESET_CARPETEDHALLWAY \
 128     {11,  1.9f,   1.000f,  -1000,  -4000,  0,      0.30f,  0.10f,  1.00f,  -1831,  0.002f,  {0.0f,0.0f,0.0f},  -1630,  0.030f,  {0.0f,0.0f,0.0f},  0.250f, 0.000f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x3f }
 129 #define REVERB_PRESET_HALLWAY \
 130     {12,  1.8f,   1.000f,  -1000,  -300,   0,      1.49f,  0.59f,  1.00f,  -1219,  0.007f,  {0.0f,0.0f,0.0f},  441,    0.011f,  {0.0f,0.0f,0.0f},  0.250f, 0.000f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x3f }
 131 #define REVERB_PRESET_STONECORRIDOR \
 132     {13,  13.5f,  1.000f,  -1000,  -237,   0,      2.70f,  0.79f,  1.00f,  -1214,  0.013f,  {0.0f,0.0f,0.0f},  395,    0.020f,  {0.0f,0.0f,0.0f},  0.250f, 0.000f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x3f }
 133 #define REVERB_PRESET_ALLEY \
 134     {14,  7.5f,   0.300f,  -1000,  -270,   0,      1.49f,  0.86f,  1.00f,  -1204,  0.007f,  {0.0f,0.0f,0.0f},  -4,     0.011f,  {0.0f,0.0f,0.0f},  0.125f, 0.950f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x3f }
 135 #define REVERB_PRESET_FOREST \
 136     {15,  38.0f,  0.300f,  -1000,  -3300,  0,      1.49f,  0.54f,  1.00f,  -2560,  0.162f,  {0.0f,0.0f,0.0f},  -229,   0.088f,  {0.0f,0.0f,0.0f},  0.125f, 1.000f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x3f }
 137 #define REVERB_PRESET_CITY \
 138     {16,  7.5f,   0.500f,  -1000,  -800,   0,      1.49f,  0.67f,  1.00f,  -2273,  0.007f,  {0.0f,0.0f,0.0f},  -1691,  0.011f,  {0.0f,0.0f,0.0f},  0.250f, 0.000f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x3f }
 139 #define REVERB_PRESET_MOUNTAINS \
 140     {17,  100.0f, 0.270f,  -1000,  -2500,  0,      1.49f,  0.21f,  1.00f,  -2780,  0.300f,  {0.0f,0.0f,0.0f},  -1434,  0.100f,  {0.0f,0.0f,0.0f},  0.250f, 1.000f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x1f }
 141 #define REVERB_PRESET_QUARRY \
 142     {18,  17.5f,  1.000f,  -1000,  -1000,  0,      1.49f,  0.83f,  1.00f,  -10000, 0.061f,  {0.0f,0.0f,0.0f},  500,    0.025f,  {0.0f,0.0f,0.0f},  0.125f, 0.700f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x3f }
 143 #define REVERB_PRESET_PLAIN \
 144     {19,  42.5f,  0.210f,  -1000,  -2000,  0,      1.49f,  0.50f,  1.00f,  -2466,  0.179f,  {0.0f,0.0f,0.0f},  -1926,  0.100f,  {0.0f,0.0f,0.0f},  0.250f, 1.000f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x3f }
 145 #define REVERB_PRESET_PARKINGLOT \
 146     {20,  8.3f,   1.000f,  -1000,  0,      0,      1.65f,  1.50f,  1.00f,  -1363,  0.008f,  {0.0f,0.0f,0.0f},  -1153,  0.012f,  {0.0f,0.0f,0.0f},  0.250f, 0.000f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x1f }
 147 #define REVERB_PRESET_SEWERPIPE \
 148     {21,  1.7f,   0.800f,  -1000,  -1000,  0,      2.81f,  0.14f,  1.00f,  429,    0.014f,  {0.0f,0.0f,0.0f},  1023,   0.021f,  {0.0f,0.0f,0.0f},  0.250f, 0.000f, 0.250f, 0.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x3f }
 149 #define REVERB_PRESET_UNDERWATER \
 150     {22,  1.8f,   1.000f,  -1000,  -4000,  0,      1.49f,  0.10f,  1.00f,  -449,   0.007f,  {0.0f,0.0f,0.0f},  1700,   0.011f,  {0.0f,0.0f,0.0f},  0.250f, 0.000f, 1.180f, 0.348f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x3f }
 151 #define REVERB_PRESET_DRUGGED \
 152     {23,  1.9f,   0.500f,  -1000,  0,      0,      8.39f,  1.39f,  1.00f,  -115,   0.002f,  {0.0f,0.0f,0.0f},  985,    0.030f,  {0.0f,0.0f,0.0f},  0.250f, 0.000f, 0.250f, 1.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x1f }
 153 #define REVERB_PRESET_DIZZY \
 154     {24,  1.8f,   0.600f,  -1000,  -400,   0,      17.23f, 0.56f,  1.00f,  -1713,  0.020f,  {0.0f,0.0f,0.0f},  -613,   0.030f,  {0.0f,0.0f,0.0f},  0.250f, 1.000f, 0.810f, 0.310f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x1f }
 155 #define REVERB_PRESET_PSYCHOTIC \
 156     {25,  1.0f,   0.500f,  -1000,  -151,   0,      7.56f,  0.91f,  1.00f,  -626,   0.020f,  {0.0f,0.0f,0.0f},  774,    0.030f,  {0.0f,0.0f,0.0f},  0.250f, 0.000f, 4.000f, 1.000f, -5.0f,  5000.0f,  250.0f, 0.00f,  0x1f }
 157
 158 enum {
 159     EAX_ENVIRONMENT_GENERIC,
 160     EAX_ENVIRONMENT_PADDEDCELL,
 161     EAX_ENVIRONMENT_ROOM,
 162     EAX_ENVIRONMENT_BATHROOM,
 163     EAX_ENVIRONMENT_LIVINGROOM,
 164     EAX_ENVIRONMENT_STONEROOM,
 165     EAX_ENVIRONMENT_AUDITORIUM,
 166     EAX_ENVIRONMENT_CONCERTHALL,
 167     EAX_ENVIRONMENT_CAVE,
 168     EAX_ENVIRONMENT_ARENA,
 169     EAX_ENVIRONMENT_HANGAR,
 170     EAX_ENVIRONMENT_CARPETEDHALLWAY,
 171     EAX_ENVIRONMENT_HALLWAY,
 172     EAX_ENVIRONMENT_STONECORRIDOR,
 173     EAX_ENVIRONMENT_ALLEY,
 174     EAX_ENVIRONMENT_FOREST,
 175     EAX_ENVIRONMENT_CITY,
 176     EAX_ENVIRONMENT_MOUNTAINS,
 177     EAX_ENVIRONMENT_QUARRY,
 178     EAX_ENVIRONMENT_PLAIN,
 179     EAX_ENVIRONMENT_PARKINGLOT,
 180     EAX_ENVIRONMENT_SEWERPIPE,
 181     EAX_ENVIRONMENT_UNDERWATER,
 182     EAX_ENVIRONMENT_DRUGGED,
 183     EAX_ENVIRONMENT_DIZZY,
 184     EAX_ENVIRONMENT_PSYCHOTIC,
 185
 186     EAX_ENVIRONMENT_COUNT,
 187 };
 188
 189 extern const EAX30LISTENERPROPERTIES EnvironmentDefaults[EAX_ENVIRONMENT_COUNT];
 190
 191 /* TODO: Define enums and structures for EAX3 buffer properties. */
 192 DEFINE_GUID(DSPROPSETID_EAX30_BufferProperties, 0xa8fa6881, 0xb476, 0x11d3, 0xbd, 0xb9, 0x00, 0xc0, 0xf0, 0x2d, 0xdf, 0x87);
 193
 194
 195 DEFINE_GUID(DSPROPSETID_EAX20_ListenerProperties, 0x0306a6a8, 0xb224, 0x11d2, 0x99, 0xe5, 0x00, 0x00, 0xe8, 0xd8, 0xc7, 0x22);
 196 typedef enum {
 197     DSPROPERTY_EAX20LISTENER_NONE,
 198     DSPROPERTY_EAX20LISTENER_ALLPARAMETERS,
 199     DSPROPERTY_EAX20LISTENER_ROOM,
 200     DSPROPERTY_EAX20LISTENER_ROOMHF,
 201     DSPROPERTY_EAX20LISTENER_ROOMROLLOFFFACTOR,
 202     DSPROPERTY_EAX20LISTENER_DECAYTIME,
 203     DSPROPERTY_EAX20LISTENER_DECAYHFRATIO,
 204     DSPROPERTY_EAX20LISTENER_REFLECTIONS,
 205     DSPROPERTY_EAX20LISTENER_REFLECTIONSDELAY,
 206     DSPROPERTY_EAX20LISTENER_REVERB,
 207     DSPROPERTY_EAX20LISTENER_REVERBDELAY,
 208     DSPROPERTY_EAX20LISTENER_ENVIRONMENT,
 209     DSPROPERTY_EAX20LISTENER_ENVIRONMENTSIZE,
 210     DSPROPERTY_EAX20LISTENER_ENVIRONMENTDIFFUSION,
 211     DSPROPERTY_EAX20LISTENER_AIRABSORPTIONHF,
 212     DSPROPERTY_EAX20LISTENER_FLAGS
 213 } DSPROPERTY_EAX20_LISTENERPROPERTY;
 214
 215 #define DSPROPERTY_EAX20LISTENER_DEFERRED               0x80000000
 216 #define DSPROPERTY_EAX20LISTENER_IMMEDIATE              0x00000000
 217 #define DSPROPERTY_EAX20LISTENER_COMMITDEFERREDSETTINGS 0x00000000
 218
 219 typedef struct _EAX20LISTENERPROPERTIES {
 220     LONG lRoom;
 221     LONG lRoomHF;
 222     FLOAT flRoomRolloffFactor;
 223     FLOAT flDecayTime;
 224     FLOAT flDecayHFRatio;
 225     LONG lReflections;
 226     FLOAT flReflectionsDelay;
 227     LONG lReverb;
 228     FLOAT flReverbDelay;
 229     DWORD dwEnvironment;
 230     FLOAT flEnvironmentSize;
 231     FLOAT flEnvironmentDiffusion;
 232     FLOAT flAirAbsorptionHF;
 233     DWORD dwFlags;
 234 } EAX20LISTENERPROPERTIES, *LPEAX20LISTENERPROPERTIES;
 235
 236 #define EAX20LISTENERFLAGS_DECAYTIMESCALE        0x00000001
 237 #define EAX20LISTENERFLAGS_REFLECTIONSSCALE      0x00000002
 238 #define EAX20LISTENERFLAGS_REFLECTIONSDELAYSCALE 0x00000004
 239 #define EAX20LISTENERFLAGS_REVERBSCALE           0x00000008
 240 #define EAX20LISTENERFLAGS_REVERBDELAYSCALE      0x00000010
 241 #define EAX20LISTENERFLAGS_DECAYHFLIMIT          0x00000020
 242
 243
 244 DEFINE_GUID(DSPROPSETID_EAX20_BufferProperties, 0x0306a6a7, 0xb224, 0x11d2, 0x99, 0xe5, 0x00, 0x00, 0xe8, 0xd8, 0xc7, 0x22);
 245 typedef enum {
 246     DSPROPERTY_EAX20BUFFER_NONE,
 247     DSPROPERTY_EAX20BUFFER_ALLPARAMETERS,
 248     DSPROPERTY_EAX20BUFFER_DIRECT,
 249     DSPROPERTY_EAX20BUFFER_DIRECTHF,
 250     DSPROPERTY_EAX20BUFFER_ROOM,
 251     DSPROPERTY_EAX20BUFFER_ROOMHF,
 252     DSPROPERTY_EAX20BUFFER_ROOMROLLOFFFACTOR,
 253     DSPROPERTY_EAX20BUFFER_OBSTRUCTION,
 254     DSPROPERTY_EAX20BUFFER_OBSTRUCTIONLFRATIO,
 255     DSPROPERTY_EAX20BUFFER_OCCLUSION,
 256     DSPROPERTY_EAX20BUFFER_OCCLUSIONLFRATIO,
 257     DSPROPERTY_EAX20BUFFER_OCCLUSIONROOMRATIO,
 258     DSPROPERTY_EAX20BUFFER_OUTSIDEVOLUMEHF,
 259     DSPROPERTY_EAX20BUFFER_AIRABSORPTIONFACTOR,
 260     DSPROPERTY_EAX20BUFFER_FLAGS
 261 } DSPROPERTY_EAX20_BUFFERPROPERTY;
 262
 263 #define DSPROPERTY_EAX20BUFFER_DEFERRED               0x80000000
 264 /* NOTE: This applies all deferred changes, not just the buffer's. */
 265 #define DSPROPERTY_EAX20BUFFER_IMMEDIATE              0x00000000
 266 #define DSPROPERTY_EAX20BUFFER_COMMITDEFERREDSETTINGS 0x00000000
 267
 268 typedef struct _EAX20BUFFERPROPERTIES {
 269     LONG lDirect;
 270     LONG lDirectHF;
 271     LONG lRoom;
 272     LONG lRoomHF;
 273     FLOAT flRoomRolloffFactor;
 274     LONG lObstruction;
 275     FLOAT flObstructionLFRatio;
 276     LONG lOcclusion;
 277     FLOAT flOcclusionLFRatio;
 278     FLOAT flOcclusionRoomRatio;
 279     LONG lOutsideVolumeHF;
 280     FLOAT flAirAbsorptionFactor;
 281     DWORD dwFlags;
 282 } EAX20BUFFERPROPERTIES, *LPEAX20BUFFERPROPERTIES;
 283
 284 /* Flags that affect lDirectHF, lRoom, and lRoomHF */
 285 #define EAX20BUFFERFLAGS_DIRECTHFAUTO 0x00000001
 286 #define EAX20BUFFERFLAGS_ROOMAUTO     0x00000002
 287 #define EAX20BUFFERFLAGS_ROOMHFAUTO   0x00000004
 288
 289 /* EAX 1.0 stuff. */
 290 DEFINE_GUID(DSPROPSETID_EAX_ReverbProperties, 0x4a4e6fc1, 0xc341, 0x11d1, 0xb7, 0x3a, 0x44, 0x45, 0x53, 0x54, 0x00, 0x00);
 291 typedef enum {
 292     DSPROPERTY_EAX1_ALL,
 293     DSPROPERTY_EAX1_ENVIRONMENT,
 294     DSPROPERTY_EAX1_VOLUME,
 295     DSPROPERTY_EAX1_DECAYTIME,
 296     DSPROPERTY_EAX1_DAMPING
 297 } DSPROPERTY_EAX1_REVERBPROPERTY;
 298
 299 typedef struct {
 300     DWORD dwEnvironment;
 301     float fVolume;
 302     float fDecayTime;
 303     float fDamping;
 304 } EAX1_REVERBPROPERTIES;
 305
 306
 307 DEFINE_GUID(DSPROPSETID_EAXBUFFER_ReverbProperties, 0x4a4e6fc0, 0xc341, 0x11d1, 0xb7, 0x3a, 0x44, 0x45, 0x53, 0x54, 0x00, 0x00);
 308 typedef enum {
 309     DSPROPERTY_EAX1BUFFER_ALL,
 310     DSPROPERTY_EAX1BUFFER_REVERBMIX
 311 } DSPROPERTY_EAX1BUFFER_REVERBPROPERTY;
 312
 313 typedef struct {
 314     float fMix;
 315 } EAX1BUFFER_REVERBPROPERTIES;