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Diffstat (limited to 'extern/audaspace/src/respec/ConverterFunctions.cpp')
-rw-r--r-- | extern/audaspace/src/respec/ConverterFunctions.cpp | 464 |
1 files changed, 464 insertions, 0 deletions
diff --git a/extern/audaspace/src/respec/ConverterFunctions.cpp b/extern/audaspace/src/respec/ConverterFunctions.cpp new file mode 100644 index 00000000000..d3df4a9ecbb --- /dev/null +++ b/extern/audaspace/src/respec/ConverterFunctions.cpp @@ -0,0 +1,464 @@ +/******************************************************************************* + * Copyright 2009-2016 Jörg Müller + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + ******************************************************************************/ + +#include "respec/ConverterFunctions.h" + +#include <stdint.h> + +#define U8_0 0x80 +#define S16_MAX ((int16_t)0x7FFF) +#define S16_MIN ((int16_t)0x8000) +#define S16_FLT 32767.0f +#define S32_MAX ((int32_t)0x7FFFFFFF) +#define S32_MIN ((int32_t)0x80000000) +#define S32_FLT 2147483647.0f +#define FLT_MAX 1.0f +#define FLT_MIN -1.0f + +AUD_NAMESPACE_BEGIN + +void convert_u8_s16(data_t* target, data_t* source, int length) +{ + int16_t* t = (int16_t*) target; + for(int i = length - 1; i >= 0; i--) + t[i] = (((int16_t)source[i]) - U8_0) << 8; +} + +void convert_u8_s24_be(data_t* target, data_t* source, int length) +{ + for(int i = length - 1; i >= 0; i--) + { + target[i*3] = source[i] - U8_0; + target[i*3+1] = 0; + target[i*3+2] = 0; + } +} + +void convert_u8_s24_le(data_t* target, data_t* source, int length) +{ + for(int i = length - 1; i >= 0; i--) + { + target[i*3+2] = source[i] - U8_0; + target[i*3+1] = 0; + target[i*3] = 0; + } +} + +void convert_u8_s32(data_t* target, data_t* source, int length) +{ + int32_t* t = (int32_t*) target; + for(int i = length - 1; i >= 0; i--) + t[i] = (((int32_t)source[i]) - U8_0) << 24; +} + +void convert_u8_float(data_t* target, data_t* source, int length) +{ + float* t = (float*) target; + for(int i = length - 1; i >= 0; i--) + t[i] = (((int32_t)source[i]) - U8_0) / ((float)U8_0); +} + +void convert_u8_double(data_t* target, data_t* source, int length) +{ + double* t = (double*) target; + for(int i = length - 1; i >= 0; i--) + t[i] = (((int32_t)source[i]) - U8_0) / ((double)U8_0); +} + +void convert_s16_u8(data_t* target, data_t* source, int length) +{ + int16_t* s = (int16_t*) source; + for(int i = 0; i < length; i++) + target[i] = (unsigned char)((s[i] >> 8) + U8_0); +} + +void convert_s16_s24_be(data_t* target, data_t* source, int length) +{ + int16_t* s = (int16_t*) source; + int16_t t; + for(int i = length - 1; i >= 0; i--) + { + t = s[i]; + target[i*3] = t >> 8 & 0xFF; + target[i*3+1] = t & 0xFF; + target[i*3+2] = 0; + } +} + +void convert_s16_s24_le(data_t* target, data_t* source, int length) +{ + int16_t* s = (int16_t*) source; + int16_t t; + for(int i = length - 1; i >= 0; i--) + { + t = s[i]; + target[i*3+2] = t >> 8 & 0xFF; + target[i*3+1] = t & 0xFF; + target[i*3] = 0; + } +} + +void 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 = length - 1; i >= 0; i--) + t[i] = ((int32_t)s[i]) << 16; +} + +void convert_s16_float(data_t* target, data_t* source, int length) +{ + int16_t* s = (int16_t*) source; + float* t = (float*) target; + for(int i = length - 1; i >= 0; i--) + t[i] = s[i] / S16_FLT; +} + +void convert_s16_double(data_t* target, data_t* source, int length) +{ + int16_t* s = (int16_t*) source; + double* t = (double*) target; + for(int i = length - 1; i >= 0; i--) + t[i] = s[i] / S16_FLT; +} + +void convert_s24_u8_be(data_t* target, data_t* source, int length) +{ + for(int i = 0; i < length; i++) + target[i] = source[i*3] ^ U8_0; +} + +void convert_s24_u8_le(data_t* target, data_t* source, int length) +{ + for(int i = 0; i < length; i++) + target[i] = source[i*3+2] ^ U8_0; +} + +void convert_s24_s16_be(data_t* target, data_t* source, int length) +{ + int16_t* t = (int16_t*) target; + for(int i = 0; i < length; i++) + t[i] = source[i*3] << 8 | source[i*3+1]; +} + +void convert_s24_s16_le(data_t* target, data_t* source, int length) +{ + int16_t* t = (int16_t*) target; + for(int i = 0; i < length; i++) + t[i] = source[i*3+2] << 8 | source[i*3+1]; +} + +void convert_s24_s24(data_t* target, data_t* source, int length) +{ + std::memcpy(target, source, length * 3); +} + +void convert_s24_s32_be(data_t* target, data_t* source, int length) +{ + int32_t* t = (int32_t*) target; + 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 convert_s24_s32_le(data_t* target, data_t* source, int length) +{ + int32_t* t = (int32_t*) target; + for(int i = length - 1; i >= 0; i--) + t[i] = source[i*3+2] << 24 | source[i*3+1] << 16 | source[i*3] << 8; +} + +void convert_s24_float_be(data_t* target, data_t* source, int length) +{ + float* t = (float*) target; + int32_t s; + 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 / S32_FLT; + } +} + +void convert_s24_float_le(data_t* target, data_t* source, int length) +{ + float* t = (float*) target; + int32_t s; + 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 / S32_FLT; + } +} + +void convert_s24_double_be(data_t* target, data_t* source, int length) +{ + double* t = (double*) target; + int32_t s; + 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 / S32_FLT; + } +} + +void convert_s24_double_le(data_t* target, data_t* source, int length) +{ + double* t = (double*) target; + int32_t s; + 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 / S32_FLT; + } +} + +void convert_s32_u8(data_t* target, data_t* source, int length) +{ + int16_t* s = (int16_t*) source; + for(int i = 0; i < length; i++) + target[i] = (unsigned char)((s[i] >> 24) + U8_0); +} + +void convert_s32_s16(data_t* target, data_t* source, int length) +{ + int16_t* t = (int16_t*) target; + int32_t* s = (int32_t*) source; + for(int i = 0; i < length; i++) + t[i] = s[i] >> 16; +} + +void 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++) + { + t = s[i]; + target[i*3] = t >> 24 & 0xFF; + target[i*3+1] = t >> 16 & 0xFF; + target[i*3+2] = t >> 8 & 0xFF; + } +} + +void convert_s32_s24_le(data_t* target, data_t* source, int length) +{ + int32_t* s = (int32_t*) source; + int32_t t; + for(int i = 0; i < length; i++) + { + t = s[i]; + target[i*3+2] = t >> 24 & 0xFF; + target[i*3+1] = t >> 16 & 0xFF; + target[i*3] = t >> 8 & 0xFF; + } +} + +void convert_s32_float(data_t* target, data_t* source, int length) +{ + int32_t* s = (int32_t*) source; + float* t = (float*) target; + for(int i = 0; i < length; i++) + t[i] = s[i] / S32_FLT; +} + +void convert_s32_double(data_t* target, data_t* source, int length) +{ + int32_t* s = (int32_t*) source; + double* t = (double*) target; + for(int i = length - 1; i >= 0; i--) + t[i] = s[i] / S32_FLT; +} + +void convert_float_u8(data_t* target, data_t* source, int length) +{ + float* s = (float*) source; + float t; + for(int i = 0; i < length; i++) + { + t = s[i] + FLT_MAX; + if(t <= 0.0f) + target[i] = 0; + else if(t >= 2.0f) + target[i] = 255; + else + target[i] = (unsigned char)(t*127); + } +} + +void convert_float_s16(data_t* target, data_t* source, int length) +{ + int16_t* t = (int16_t*) target; + float* s = (float*) source; + for(int i = 0; i < length; i++) + { + if(s[i] <= FLT_MIN) + t[i] = S16_MIN; + else if(s[i] >= FLT_MAX) + t[i] = S16_MAX; + else + t[i] = (int16_t)(s[i] * S16_MAX); + } +} + +void convert_float_s24_be(data_t* target, data_t* source, int length) +{ + int32_t t; + float* s = (float*) source; + for(int i = 0; i < length; i++) + { + if(s[i] <= FLT_MIN) + t = S32_MIN; + else if(s[i] >= FLT_MAX) + t = S32_MAX; + else + t = (int32_t)(s[i]*S32_MAX); + target[i*3] = t >> 24 & 0xFF; + target[i*3+1] = t >> 16 & 0xFF; + target[i*3+2] = t >> 8 & 0xFF; + } +} + +void convert_float_s24_le(data_t* target, data_t* source, int length) +{ + int32_t t; + float* s = (float*) source; + for(int i = 0; i < length; i++) + { + if(s[i] <= FLT_MIN) + t = S32_MIN; + else if(s[i] >= FLT_MAX) + t = S32_MAX; + else + t = (int32_t)(s[i]*S32_MAX); + target[i*3+2] = t >> 24 & 0xFF; + target[i*3+1] = t >> 16 & 0xFF; + target[i*3] = t >> 8 & 0xFF; + } +} + +void convert_float_s32(data_t* target, data_t* source, int length) +{ + int32_t* t = (int32_t*) target; + float* s = (float*) source; + for(int i = 0; i < length; i++) + { + if(s[i] <= FLT_MIN) + t[i] = S32_MIN; + else if(s[i] >= FLT_MAX) + t[i] = S32_MAX; + else + t[i] = (int32_t)(s[i]*S32_MAX); + } +} + +void convert_float_double(data_t* target, data_t* source, int length) +{ + float* s = (float*) source; + double* t = (double*) target; + for(int i = length - 1; i >= 0; i--) + t[i] = s[i]; +} + +void convert_double_u8(data_t* target, data_t* source, int length) +{ + double* s = (double*) source; + double t; + for(int i = 0; i < length; i++) + { + t = s[i] + FLT_MAX; + if(t <= 0.0) + target[i] = 0; + else if(t >= 2.0) + target[i] = 255; + else + target[i] = (unsigned char)(t*127); + } +} + +void convert_double_s16(data_t* target, data_t* source, int length) +{ + int16_t* t = (int16_t*) target; + double* s = (double*) source; + for(int i = 0; i < length; i++) + { + if(s[i] <= FLT_MIN) + t[i] = S16_MIN; + else if(s[i] >= FLT_MAX) + t[i] = S16_MAX; + else + t[i] = (int16_t)(s[i]*S16_MAX); + } +} + +void convert_double_s24_be(data_t* target, data_t* source, int length) +{ + int32_t t; + double* s = (double*) source; + for(int i = 0; i < length; i++) + { + if(s[i] <= FLT_MIN) + t = S32_MIN; + else if(s[i] >= FLT_MAX) + t = S32_MAX; + else + t = (int32_t)(s[i]*S32_MAX); + target[i*3] = t >> 24 & 0xFF; + target[i*3+1] = t >> 16 & 0xFF; + target[i*3+2] = t >> 8 & 0xFF; + } +} + +void convert_double_s24_le(data_t* target, data_t* source, int length) +{ + int32_t t; + double* s = (double*) source; + for(int i = 0; i < length; i++) + { + if(s[i] <= FLT_MIN) + t = S32_MIN; + else if(s[i] >= FLT_MAX) + t = S32_MAX; + else + t = (int32_t)(s[i]*S32_MAX); + target[i*3+2] = t >> 24 & 0xFF; + target[i*3+1] = t >> 16 & 0xFF; + target[i*3] = t >> 8 & 0xFF; + } +} + +void convert_double_s32(data_t* target, data_t* source, int length) +{ + int32_t* t = (int32_t*) target; + double* s = (double*) source; + for(int i = 0; i < length; i++) + { + if(s[i] <= FLT_MIN) + t[i] = S32_MIN; + else if(s[i] >= FLT_MAX) + t[i] = S32_MAX; + else + t[i] = (int32_t)(s[i]*S32_MAX); + } +} + +void convert_double_float(data_t* target, data_t* source, int length) +{ + double* s = (double*) source; + float* t = (float*) target; + for(int i = 0; i < length; i++) + t[i] = s[i]; +} + +AUD_NAMESPACE_END |