66 |
Compressed = (waveList->GetSubChunk(CHUNK_ID_EWAV)); |
Compressed = (waveList->GetSubChunk(CHUNK_ID_EWAV)); |
67 |
if (Compressed) { |
if (Compressed) { |
68 |
ScanCompressedSample(); |
ScanCompressedSample(); |
69 |
if (!pDecompressionBuffer) { |
} |
70 |
pDecompressionBuffer = new int8_t[INITIAL_SAMPLE_BUFFER_SIZE]; |
|
71 |
DecompressionBufferSize = INITIAL_SAMPLE_BUFFER_SIZE; |
if (BitDepth > 24) throw gig::Exception("Only samples up to 24 bit supported"); |
72 |
} |
if (Compressed && Channels == 1) throw gig::Exception("Mono compressed samples not yet supported"); |
73 |
|
if (Compressed && BitDepth == 24) throw gig::Exception("24 bit compressed samples not yet supported"); |
74 |
|
|
75 |
|
// we use a buffer for decompression and for truncating 24 bit samples to 16 bit |
76 |
|
if ((Compressed || BitDepth == 24) && !pDecompressionBuffer) { |
77 |
|
pDecompressionBuffer = new int8_t[INITIAL_SAMPLE_BUFFER_SIZE]; |
78 |
|
DecompressionBufferSize = INITIAL_SAMPLE_BUFFER_SIZE; |
79 |
} |
} |
80 |
FrameOffset = 0; // just for streaming compressed samples |
FrameOffset = 0; // just for streaming compressed samples |
81 |
|
|
508 |
*/ |
*/ |
509 |
unsigned long Sample::Read(void* pBuffer, unsigned long SampleCount) { |
unsigned long Sample::Read(void* pBuffer, unsigned long SampleCount) { |
510 |
if (SampleCount == 0) return 0; |
if (SampleCount == 0) return 0; |
511 |
if (!Compressed) return pCkData->Read(pBuffer, SampleCount, FrameSize); //FIXME: channel inversion due to endian correction? |
if (!Compressed) { |
512 |
|
if (BitDepth == 24) { |
513 |
|
// 24 bit sample. For now just truncate to 16 bit. |
514 |
|
int8_t* pSrc = (int8_t*)this->pDecompressionBuffer; |
515 |
|
int8_t* pDst = (int8_t*)pBuffer; |
516 |
|
unsigned long n = pCkData->Read(pSrc, SampleCount, FrameSize); |
517 |
|
for (int i = SampleCount * (FrameSize / 3) ; i > 0 ; i--) { |
518 |
|
pSrc++; |
519 |
|
*pDst++ = *pSrc++; |
520 |
|
*pDst++ = *pSrc++; |
521 |
|
} |
522 |
|
return SampleCount; |
523 |
|
} else { |
524 |
|
return pCkData->Read(pBuffer, SampleCount, FrameSize); //FIXME: channel inversion due to endian correction? |
525 |
|
} |
526 |
|
} |
527 |
else { //FIXME: no support for mono compressed samples yet, are there any? |
else { //FIXME: no support for mono compressed samples yet, are there any? |
528 |
if (this->SamplePos >= this->SamplesTotal) return 0; |
if (this->SamplePos >= this->SamplesTotal) return 0; |
529 |
//TODO: efficiency: we simply assume here that all frames are compressed, maybe we should test for an average compression rate |
//TODO: efficiency: we simply assume here that all frames are compressed, maybe we should test for an average compression rate |
701 |
if (!pVelocityTables) pVelocityTables = new VelocityTableMap; |
if (!pVelocityTables) pVelocityTables = new VelocityTableMap; |
702 |
|
|
703 |
RIFF::Chunk* _3ewa = _3ewl->GetSubChunk(CHUNK_ID_3EWA); |
RIFF::Chunk* _3ewa = _3ewl->GetSubChunk(CHUNK_ID_3EWA); |
704 |
_3ewa->ReadInt32(); // unknown, allways 0x0000008C ? |
_3ewa->ReadInt32(); // unknown, always 0x0000008C ? |
705 |
LFO3Frequency = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
LFO3Frequency = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
706 |
EG3Attack = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
EG3Attack = (double) GIG_EXP_DECODE(_3ewa->ReadInt32()); |
707 |
_3ewa->ReadInt16(); // unknown |
_3ewa->ReadInt16(); // unknown |
795 |
else if (pitchTrackDimensionBypass & 0x20) DimensionBypass = dim_bypass_ctrl_95; |
else if (pitchTrackDimensionBypass & 0x20) DimensionBypass = dim_bypass_ctrl_95; |
796 |
else DimensionBypass = dim_bypass_ctrl_none; |
else DimensionBypass = dim_bypass_ctrl_none; |
797 |
uint8_t pan = _3ewa->ReadUint8(); |
uint8_t pan = _3ewa->ReadUint8(); |
798 |
Pan = (pan < 64) ? pan : (-1) * (int8_t)pan - 63; |
Pan = (pan < 64) ? pan : -((int)pan - 63); // signed 7 bit -> signed 8 bit |
799 |
SelfMask = _3ewa->ReadInt8() & 0x01; |
SelfMask = _3ewa->ReadInt8() & 0x01; |
800 |
_3ewa->ReadInt8(); // unknown |
_3ewa->ReadInt8(); // unknown |
801 |
uint8_t lfo3ctrl = _3ewa->ReadUint8(); |
uint8_t lfo3ctrl = _3ewa->ReadUint8(); |
857 |
pVelocityAttenuationTable = (*pVelocityTables)[tableKey]; |
pVelocityAttenuationTable = (*pVelocityTables)[tableKey]; |
858 |
} |
} |
859 |
else { |
else { |
860 |
pVelocityAttenuationTable = new double[128]; |
pVelocityAttenuationTable = |
861 |
switch (VelocityResponseCurve) { // calculate the new table |
CreateVelocityTable(VelocityResponseCurve, |
862 |
case curve_type_nonlinear: |
VelocityResponseDepth, |
863 |
for (int velocity = 0; velocity < 128; velocity++) { |
VelocityResponseCurveScaling); |
|
pVelocityAttenuationTable[velocity] = |
|
|
GIG_VELOCITY_TRANSFORM_NONLINEAR(((double)velocity),((double)VelocityResponseDepth),((double)VelocityResponseCurveScaling)); |
|
|
if (pVelocityAttenuationTable[velocity] > 1.0) pVelocityAttenuationTable[velocity] = 1.0; |
|
|
else if (pVelocityAttenuationTable[velocity] < 1e-15) pVelocityAttenuationTable[velocity] = 0.0; |
|
|
} |
|
|
break; |
|
|
case curve_type_linear: |
|
|
for (int velocity = 0; velocity < 128; velocity++) { |
|
|
pVelocityAttenuationTable[velocity] = |
|
|
GIG_VELOCITY_TRANSFORM_LINEAR(((double)velocity),((double)VelocityResponseDepth),((double)VelocityResponseCurveScaling)); |
|
|
if (pVelocityAttenuationTable[velocity] > 1.0) pVelocityAttenuationTable[velocity] = 1.0; |
|
|
else if (pVelocityAttenuationTable[velocity] < 1e-15) pVelocityAttenuationTable[velocity] = 0.0; |
|
|
} |
|
|
break; |
|
|
case curve_type_special: |
|
|
for (int velocity = 0; velocity < 128; velocity++) { |
|
|
pVelocityAttenuationTable[velocity] = |
|
|
GIG_VELOCITY_TRANSFORM_SPECIAL(((double)velocity),((double)VelocityResponseDepth),((double)VelocityResponseCurveScaling)); |
|
|
if (pVelocityAttenuationTable[velocity] > 1.0) pVelocityAttenuationTable[velocity] = 1.0; |
|
|
else if (pVelocityAttenuationTable[velocity] < 1e-15) pVelocityAttenuationTable[velocity] = 0.0; |
|
|
} |
|
|
break; |
|
|
case curve_type_unknown: |
|
|
default: |
|
|
throw gig::Exception("Unknown transform curve type."); |
|
|
} |
|
864 |
(*pVelocityTables)[tableKey] = pVelocityAttenuationTable; // put the new table into the tables map |
(*pVelocityTables)[tableKey] = pVelocityAttenuationTable; // put the new table into the tables map |
865 |
} |
} |
866 |
} |
} |
1013 |
return pVelocityAttenuationTable[MIDIKeyVelocity]; |
return pVelocityAttenuationTable[MIDIKeyVelocity]; |
1014 |
} |
} |
1015 |
|
|
1016 |
|
double* DimensionRegion::CreateVelocityTable(curve_type_t curveType, uint8_t depth, uint8_t scaling) { |
1017 |
|
|
1018 |
|
// line-segment approximations of the 15 velocity curves |
1019 |
|
|
1020 |
|
// linear |
1021 |
|
const int lin0[] = { 1, 1, 127, 127 }; |
1022 |
|
const int lin1[] = { 1, 21, 127, 127 }; |
1023 |
|
const int lin2[] = { 1, 45, 127, 127 }; |
1024 |
|
const int lin3[] = { 1, 74, 127, 127 }; |
1025 |
|
const int lin4[] = { 1, 127, 127, 127 }; |
1026 |
|
|
1027 |
|
// non-linear |
1028 |
|
const int non0[] = { 1, 4, 24, 5, 57, 17, 92, 57, 122, 127, 127, 127 }; |
1029 |
|
const int non1[] = { 1, 4, 46, 9, 93, 56, 118, 106, 123, 127, |
1030 |
|
127, 127 }; |
1031 |
|
const int non2[] = { 1, 4, 46, 9, 57, 20, 102, 107, 107, 127, |
1032 |
|
127, 127 }; |
1033 |
|
const int non3[] = { 1, 15, 10, 19, 67, 73, 80, 80, 90, 98, 98, 127, |
1034 |
|
127, 127 }; |
1035 |
|
const int non4[] = { 1, 25, 33, 57, 82, 81, 92, 127, 127, 127 }; |
1036 |
|
|
1037 |
|
// special |
1038 |
|
const int spe0[] = { 1, 2, 76, 10, 90, 15, 95, 20, 99, 28, 103, 44, |
1039 |
|
113, 127, 127, 127 }; |
1040 |
|
const int spe1[] = { 1, 2, 27, 5, 67, 18, 89, 29, 95, 35, 107, 67, |
1041 |
|
118, 127, 127, 127 }; |
1042 |
|
const int spe2[] = { 1, 1, 33, 1, 53, 5, 61, 13, 69, 32, 79, 74, |
1043 |
|
85, 90, 91, 127, 127, 127 }; |
1044 |
|
const int spe3[] = { 1, 32, 28, 35, 66, 48, 89, 59, 95, 65, 99, 73, |
1045 |
|
117, 127, 127, 127 }; |
1046 |
|
const int spe4[] = { 1, 4, 23, 5, 49, 13, 57, 17, 92, 57, 122, 127, |
1047 |
|
127, 127 }; |
1048 |
|
|
1049 |
|
const int* const curves[] = { non0, non1, non2, non3, non4, |
1050 |
|
lin0, lin1, lin2, lin3, lin4, |
1051 |
|
spe0, spe1, spe2, spe3, spe4 }; |
1052 |
|
|
1053 |
|
double* const table = new double[128]; |
1054 |
|
|
1055 |
|
const int* curve = curves[curveType * 5 + depth]; |
1056 |
|
const int s = scaling == 0 ? 20 : scaling; // 0 or 20 means no scaling |
1057 |
|
|
1058 |
|
table[0] = 0; |
1059 |
|
for (int x = 1 ; x < 128 ; x++) { |
1060 |
|
|
1061 |
|
if (x > curve[2]) curve += 2; |
1062 |
|
double y = curve[1] + (x - curve[0]) * |
1063 |
|
(double(curve[3] - curve[1]) / (curve[2] - curve[0])); |
1064 |
|
y = y / 127; |
1065 |
|
|
1066 |
|
// Scale up for s > 20, down for s < 20. When |
1067 |
|
// down-scaling, the curve still ends at 1.0. |
1068 |
|
if (s < 20 && y >= 0.5) |
1069 |
|
y = y / ((2 - 40.0 / s) * y + 40.0 / s - 1); |
1070 |
|
else |
1071 |
|
y = y * (s / 20.0); |
1072 |
|
if (y > 1) y = 1; |
1073 |
|
|
1074 |
|
table[x] = y; |
1075 |
|
} |
1076 |
|
return table; |
1077 |
|
} |
1078 |
|
|
1079 |
|
|
1080 |
// *************** Region *************** |
// *************** Region *************** |
1086 |
for (int i = 0; i < 32; i++) { |
for (int i = 0; i < 32; i++) { |
1087 |
pDimensionRegions[i] = NULL; |
pDimensionRegions[i] = NULL; |
1088 |
} |
} |
1089 |
|
Layers = 1; |
1090 |
|
|
1091 |
// Actual Loading |
// Actual Loading |
1092 |
|
|
1111 |
pDimensionDefinitions[i].bits = bits; |
pDimensionDefinitions[i].bits = bits; |
1112 |
pDimensionDefinitions[i].zones = 0x01 << bits; // = pow(2,bits) |
pDimensionDefinitions[i].zones = 0x01 << bits; // = pow(2,bits) |
1113 |
pDimensionDefinitions[i].split_type = (dimension == dimension_layer || |
pDimensionDefinitions[i].split_type = (dimension == dimension_layer || |
1114 |
dimension == dimension_samplechannel) ? split_type_bit |
dimension == dimension_samplechannel || |
1115 |
: split_type_normal; |
dimension == dimension_releasetrigger) ? split_type_bit |
1116 |
|
: split_type_normal; |
1117 |
pDimensionDefinitions[i].ranges = NULL; // it's not possible to check velocity dimensions for custom defined ranges at this point |
pDimensionDefinitions[i].ranges = NULL; // it's not possible to check velocity dimensions for custom defined ranges at this point |
1118 |
pDimensionDefinitions[i].zone_size = |
pDimensionDefinitions[i].zone_size = |
1119 |
(pDimensionDefinitions[i].split_type == split_type_normal) ? 128 / pDimensionDefinitions[i].zones |
(pDimensionDefinitions[i].split_type == split_type_normal) ? 128 / pDimensionDefinitions[i].zones |
1120 |
: 0; |
: 0; |
1121 |
Dimensions++; |
Dimensions++; |
1122 |
|
|
1123 |
|
// if this is a layer dimension, remember the amount of layers |
1124 |
|
if (dimension == dimension_layer) Layers = pDimensionDefinitions[i].zones; |
1125 |
} |
} |
1126 |
_3lnk->SetPos(6, RIFF::stream_curpos); // jump forward to next dimension definition |
_3lnk->SetPos(6, RIFF::stream_curpos); // jump forward to next dimension definition |
1127 |
} |
} |
1156 |
} |
} |
1157 |
} |
} |
1158 |
|
|
1159 |
|
// jump to start of the wave pool indices (if not already there) |
1160 |
|
File* file = (File*) GetParent()->GetParent(); |
1161 |
|
if (file->pVersion && file->pVersion->major == 3) |
1162 |
|
_3lnk->SetPos(68); // version 3 has a different 3lnk structure |
1163 |
|
else |
1164 |
|
_3lnk->SetPos(44); |
1165 |
|
|
1166 |
// load sample references |
// load sample references |
|
_3lnk->SetPos(44); // jump to start of the wave pool indices (if not already there) |
|
1167 |
for (uint i = 0; i < DimensionRegions; i++) { |
for (uint i = 0; i < DimensionRegions; i++) { |
1168 |
uint32_t wavepoolindex = _3lnk->ReadUint32(); |
uint32_t wavepoolindex = _3lnk->ReadUint32(); |
1169 |
pDimensionRegions[i]->pSample = GetSampleFromWavePool(wavepoolindex); |
pDimensionRegions[i]->pSample = GetSampleFromWavePool(wavepoolindex); |
1220 |
* @see Dimensions |
* @see Dimensions |
1221 |
*/ |
*/ |
1222 |
DimensionRegion* Region::GetDimensionRegionByValue(uint Dim4Val, uint Dim3Val, uint Dim2Val, uint Dim1Val, uint Dim0Val) { |
DimensionRegion* Region::GetDimensionRegionByValue(uint Dim4Val, uint Dim3Val, uint Dim2Val, uint Dim1Val, uint Dim0Val) { |
1223 |
unsigned int bits[5] = {Dim0Val,Dim1Val,Dim2Val,Dim3Val,Dim4Val}; |
uint8_t bits[5] = {Dim0Val,Dim1Val,Dim2Val,Dim3Val,Dim4Val}; |
1224 |
for (uint i = 0; i < Dimensions; i++) { |
for (uint i = 0; i < Dimensions; i++) { |
1225 |
switch (pDimensionDefinitions[i].split_type) { |
switch (pDimensionDefinitions[i].split_type) { |
1226 |
case split_type_normal: |
case split_type_normal: |
1229 |
case split_type_customvelocity: |
case split_type_customvelocity: |
1230 |
bits[i] = VelocityTable[bits[i]]; |
bits[i] = VelocityTable[bits[i]]; |
1231 |
break; |
break; |
1232 |
// else the value is already the sought dimension bit number |
case split_type_bit: // the value is already the sought dimension bit number |
1233 |
|
const uint8_t limiter_mask = (0xff << pDimensionDefinitions[i].bits) ^ 0xff; |
1234 |
|
bits[i] = bits[i] & limiter_mask; // just make sure the value don't uses more bits than allowed |
1235 |
|
break; |
1236 |
} |
} |
1237 |
} |
} |
1238 |
return GetDimensionRegionByBit(bits[4],bits[3],bits[2],bits[1],bits[0]); |
return GetDimensionRegionByBit(bits[4],bits[3],bits[2],bits[1],bits[0]); |