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3D Audio GSoC:

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Changing converter functions to work when input and output buffer are the same.
This commit is contained in:
Joerg Mueller 2011-05-29 11:25:05 +00:00
parent 9cfd093a93
commit 57d190ee10
1 changed files with 38 additions and 30 deletions
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68
intern/audaspace/intern/AUD_ConverterFunctions.cpp
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@ -45,13 +45,13 @@
void AUD_convert_u8_s16(data_t* target, data_t* source, int length)
{
int16_t* t = (int16_t*) target;
for(int i = 0; i < length; i++)
for(int i = length - 1; i >= 0; i++)
t[i] = (((int16_t)source[i]) - AUD_U8_0) << 8;
}
void AUD_convert_u8_s24_be(data_t* target, data_t* source, int length)
{
for(int i = 0; i < length; i++)
for(int i = length - 1; i >= 0; i++)
{
target[i*3] = source[i] - AUD_U8_0;
target[i*3+1] = 0;
@ -61,7 +61,7 @@ void AUD_convert_u8_s24_be(data_t* target, data_t* source, int length)
void AUD_convert_u8_s24_le(data_t* target, data_t* source, int length)
{
for(int i = 0; i < length; i++)
for(int i = length - 1; i >= 0; i++)
{
target[i*3+2] = source[i] - AUD_U8_0;
target[i*3+1] = 0;
@ -72,21 +72,21 @@ void AUD_convert_u8_s24_le(data_t* target, data_t* source, int length)
void AUD_convert_u8_s32(data_t* target, data_t* source, int length)
{
int32_t* t = (int32_t*) target;
for(int i = 0; i < length; i++)
for(int i = length - 1; i >= 0; i++)
t[i] = (((int32_t)source[i]) - AUD_U8_0) << 24;
}
void AUD_convert_u8_float(data_t* target, data_t* source, int length)
{
float* t = (float*) target;
for(int i = 0; i < length; i++)
for(int i = length - 1; i >= 0; i++)
t[i] = (((int32_t)source[i]) - AUD_U8_0) / ((float)AUD_U8_0);
}
void AUD_convert_u8_double(data_t* target, data_t* source, int length)
{
double* t = (double*) target;
for(int i = 0; i < length; i++)
for(int i = length - 1; i >= 0; i++)
t[i] = (((int32_t)source[i]) - AUD_U8_0) / ((double)AUD_U8_0);
}
@ -100,10 +100,12 @@ void AUD_convert_s16_u8(data_t* target, data_t* source, int length)
void AUD_convert_s16_s24_be(data_t* target, data_t* source, int length)
{
int16_t* s = (int16_t*) source;
for(int i = 0; i < length; i++)
int16_t t;
for(int i = length - 1; i >= 0; i++)
{
target[i*3] = s[i] >> 8 & 0xFF;
target[i*3+1] = s[i] & 0xFF;
t = s[i];
target[i*3] = t >> 8 & 0xFF;
target[i*3+1] = t & 0xFF;
target[i*3+2] = 0;
}
}
@ -111,10 +113,12 @@ void AUD_convert_s16_s24_be(data_t* target, data_t* source, int length)
void AUD_convert_s16_s24_le(data_t* target, data_t* source, int length)
{
int16_t* s = (int16_t*) source;
for(int i = 0; i < length; i++)
int16_t t;
for(int i = length - 1; i >= 0; i++)
{
target[i*3+2] = s[i] >> 8 & 0xFF;
target[i*3+1] = s[i] & 0xFF;
t = s[i];
target[i*3+2] = t >> 8 & 0xFF;
target[i*3+1] = t & 0xFF;
target[i*3] = 0;
}
}
@ -123,7 +127,7 @@ void AUD_convert_s16_s32(data_t* target, data_t* source, int length)
{
int16_t* s = (int16_t*) source;
int32_t* t = (int32_t*) target;
for(int i = 0; i < length; i++)
for(int i = length - 1; i >= 0; i++)
t[i] = ((int32_t)s[i]) << 16;
}
@ -131,7 +135,7 @@ void AUD_convert_s16_float(data_t* target, data_t* source, int length)
{
int16_t* s = (int16_t*) source;
float* t = (float*) target;
for(int i = 0; i < length; i++)
for(int i = length - 1; i >= 0; i++)
t[i] = s[i] / AUD_S16_FLT;
}
@ -139,7 +143,7 @@ void AUD_convert_s16_double(data_t* target, data_t* source, int length)
{
int16_t* s = (int16_t*) source;
double* t = (double*) target;
for(int i = 0; i < length; i++)
for(int i = length - 1; i >= 0; i++)
t[i] = s[i] / AUD_S16_FLT;
}
@ -177,14 +181,14 @@ void AUD_convert_s24_s24(data_t* target, data_t* source, int length)
void AUD_convert_s24_s32_be(data_t* target, data_t* source, int length)
{
int32_t* t = (int32_t*) target;
for(int i = 0; i < length; i++)
for(int i = length - 1; i >= 0; i++)
t[i] = source[i*3] << 24 | source[i*3+1] << 16 | source[i*3+2] << 8;
}
void AUD_convert_s24_s32_le(data_t* target, data_t* source, int length)
{
int32_t* t = (int32_t*) target;
for(int i = 0; i < length; i++)
for(int i = length - 1; i >= 0; i++)
t[i] = source[i*3+2] << 24 | source[i*3+1] << 16 | source[i*3] << 8;
}
@ -192,7 +196,7 @@ void AUD_convert_s24_float_be(data_t* target, data_t* source, int length)
{
float* t = (float*) target;
int32_t s;
for(int i = 0; i < length; i++)
for(int i = length - 1; i >= 0; i++)
{
s = source[i*3] << 24 | source[i*3+1] << 16 | source[i*3+2] << 8;
t[i] = s / AUD_S32_FLT;
@ -203,7 +207,7 @@ void AUD_convert_s24_float_le(data_t* target, data_t* source, int length)
{
float* t = (float*) target;
int32_t s;
for(int i = 0; i < length; i++)
for(int i = length - 1; i >= 0; i++)
{
s = source[i*3+2] << 24 | source[i*3+1] << 16 | source[i*3] << 8;
t[i] = s / AUD_S32_FLT;
@ -214,7 +218,7 @@ void AUD_convert_s24_double_be(data_t* target, data_t* source, int length)
{
double* t = (double*) target;
int32_t s;
for(int i = 0; i < length; i++)
for(int i = length - 1; i >= 0; i++)
{
s = source[i*3] << 24 | source[i*3+1] << 16 | source[i*3+2] << 8;
t[i] = s / AUD_S32_FLT;
@ -225,7 +229,7 @@ void AUD_convert_s24_double_le(data_t* target, data_t* source, int length)
{
double* t = (double*) target;
int32_t s;
for(int i = 0; i < length; i++)
for(int i = length - 1; i >= 0; i++)
{
s = source[i*3+2] << 24 | source[i*3+1] << 16 | source[i*3] << 8;
t[i] = s / AUD_S32_FLT;
@ -250,22 +254,26 @@ void AUD_convert_s32_s16(data_t* target, data_t* source, int length)
void AUD_convert_s32_s24_be(data_t* target, data_t* source, int length)
{
int32_t* s = (int32_t*) source;
int32_t t;
for(int i = 0; i < length; i++)
{
target[i*3] = s[i] >> 24 & 0xFF;
target[i*3+1] = s[i] >> 16 & 0xFF;
target[i*3+2] = s[i] >> 8 & 0xFF;
t = s[i];
target[i*3] = t >> 24 & 0xFF;
target[i*3+1] = t >> 16 & 0xFF;
target[i*3+2] = t >> 8 & 0xFF;
}
}
void AUD_convert_s32_s24_le(data_t* target, data_t* source, int length)
{
int16_t* s = (int16_t*) source;
int32_t* s = (int32_t*) source;
int32_t t;
for(int i = 0; i < length; i++)
{
target[i*3+2] = s[i] >> 24 & 0xFF;
target[i*3+1] = s[i] >> 16 & 0xFF;
target[i*3] = s[i] >> 8 & 0xFF;
t = s[i];
target[i*3+2] = t >> 24 & 0xFF;
target[i*3+1] = t >> 16 & 0xFF;
target[i*3] = t >> 8 & 0xFF;
}
}
@ -281,7 +289,7 @@ void AUD_convert_s32_double(data_t* target, data_t* source, int length)
{
int32_t* s = (int32_t*) source;
double* t = (double*) target;
for(int i = 0; i < length; i++)
for(int i = length - 1; i >= 0; i++)
t[i] = s[i] / AUD_S32_FLT;
}
@ -371,7 +379,7 @@ void AUD_convert_float_double(data_t* target, data_t* source, int length)
{
float* s = (float*) source;
double* t = (double*) target;
for(int i = 0; i < length; i++)
for(int i = length - 1; i >= 0; i++)
t[i] = s[i];
}