836 |
pVelocityAttenuationTable = (*pVelocityTables)[tableKey]; |
pVelocityAttenuationTable = (*pVelocityTables)[tableKey]; |
837 |
} |
} |
838 |
else { |
else { |
839 |
pVelocityAttenuationTable = new double[128]; |
pVelocityAttenuationTable = |
840 |
switch (VelocityResponseCurve) { // calculate the new table |
CreateVelocityTable(VelocityResponseCurve, |
841 |
case curve_type_nonlinear: |
VelocityResponseDepth, |
842 |
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."); |
|
|
} |
|
843 |
(*pVelocityTables)[tableKey] = pVelocityAttenuationTable; // put the new table into the tables map |
(*pVelocityTables)[tableKey] = pVelocityAttenuationTable; // put the new table into the tables map |
844 |
} |
} |
845 |
} |
} |
992 |
return pVelocityAttenuationTable[MIDIKeyVelocity]; |
return pVelocityAttenuationTable[MIDIKeyVelocity]; |
993 |
} |
} |
994 |
|
|
995 |
|
double* DimensionRegion::CreateVelocityTable(curve_type_t curveType, uint8_t depth, uint8_t scaling) { |
996 |
|
|
997 |
|
// line-segment approximations of the 15 velocity curves |
998 |
|
|
999 |
|
// linear |
1000 |
|
const int lin0[] = { 1, 1, 127, 127 }; |
1001 |
|
const int lin1[] = { 1, 21, 127, 127 }; |
1002 |
|
const int lin2[] = { 1, 45, 127, 127 }; |
1003 |
|
const int lin3[] = { 1, 74, 127, 127 }; |
1004 |
|
const int lin4[] = { 1, 127, 127, 127 }; |
1005 |
|
|
1006 |
|
// non-linear |
1007 |
|
const int non0[] = { 1, 4, 24, 5, 57, 17, 92, 57, 122, 127, 127, 127 }; |
1008 |
|
const int non1[] = { 1, 4, 46, 9, 93, 56, 118, 106, 123, 127, |
1009 |
|
127, 127 }; |
1010 |
|
const int non2[] = { 1, 4, 46, 9, 57, 20, 102, 107, 107, 127, |
1011 |
|
127, 127 }; |
1012 |
|
const int non3[] = { 1, 15, 10, 19, 67, 73, 80, 80, 90, 98, 98, 127, |
1013 |
|
127, 127 }; |
1014 |
|
const int non4[] = { 1, 25, 33, 57, 82, 81, 92, 127, 127, 127 }; |
1015 |
|
|
1016 |
|
// special |
1017 |
|
const int spe0[] = { 1, 2, 76, 10, 90, 15, 95, 20, 99, 28, 103, 44, |
1018 |
|
113, 127, 127, 127 }; |
1019 |
|
const int spe1[] = { 1, 2, 27, 5, 67, 18, 89, 29, 95, 35, 107, 67, |
1020 |
|
118, 127, 127, 127 }; |
1021 |
|
const int spe2[] = { 1, 1, 33, 1, 53, 5, 61, 13, 69, 32, 79, 74, |
1022 |
|
85, 90, 91, 127, 127, 127 }; |
1023 |
|
const int spe3[] = { 1, 32, 28, 35, 66, 48, 89, 59, 95, 65, 99, 73, |
1024 |
|
117, 127, 127, 127 }; |
1025 |
|
const int spe4[] = { 1, 4, 23, 5, 49, 13, 57, 17, 92, 57, 122, 127, |
1026 |
|
127, 127 }; |
1027 |
|
|
1028 |
|
const int* const curves[] = { non0, non1, non2, non3, non4, |
1029 |
|
lin0, lin1, lin2, lin3, lin4, |
1030 |
|
spe0, spe1, spe2, spe3, spe4 }; |
1031 |
|
|
1032 |
|
double* const table = new double[128]; |
1033 |
|
|
1034 |
|
const int* curve = curves[curveType * 5 + depth]; |
1035 |
|
const int s = scaling == 0 ? 20 : scaling; // 0 or 20 means no scaling |
1036 |
|
|
1037 |
|
table[0] = 0; |
1038 |
|
for (int x = 1 ; x < 128 ; x++) { |
1039 |
|
|
1040 |
|
if (x > curve[2]) curve += 2; |
1041 |
|
double y = curve[1] + (x - curve[0]) * |
1042 |
|
(double(curve[3] - curve[1]) / (curve[2] - curve[0])); |
1043 |
|
y = y / 127; |
1044 |
|
|
1045 |
|
// Scale up for s > 20, down for s < 20. When |
1046 |
|
// down-scaling, the curve still ends at 1.0. |
1047 |
|
if (s < 20 && y >= 0.5) |
1048 |
|
y = y / ((2 - 40.0 / s) * y + 40.0 / s - 1); |
1049 |
|
else |
1050 |
|
y = y * (s / 20.0); |
1051 |
|
if (y > 1) y = 1; |
1052 |
|
|
1053 |
|
table[x] = y; |
1054 |
|
} |
1055 |
|
return table; |
1056 |
|
} |
1057 |
|
|
1058 |
|
|
1059 |
// *************** Region *************** |
// *************** Region *************** |