std::pair<TweakableState, bool> TweakableParser<bool>::parse(Containers::ArrayView<const char> value) {
if(value.size() == 4 && std::strncmp(value.data(), "true", value.size()) == 0)
return {TweakableState::Success, true};
if(value.size() == 5 && std::strncmp(value.data(), "false", value.size()) == 0)
return {TweakableState::Success, false};
Warning{} << "Utility::TweakableParser:" << std::string{value, value.size()} << "is not a boolean literal";
return {TweakableState::Recompile, {}};
}
bool Directory::write(const std::string& filename, const Containers::ArrayView<const void> data) {
std::ofstream file(filename, std::ofstream::binary);
if(!file) return false;
file.write(reinterpret_cast<const char*>(data.data()), data.size());
return true;
}
template<UnsignedInt dimensions> void BufferImage<dimensions>::setData(const PixelStorage storage, const PixelFormat format, const PixelType type, const VectorTypeFor<dimensions, Int>& size, Containers::ArrayView<const void> const data, const BufferUsage usage) {
_storage = storage;
_format = format;
_type = type;
_size = size;
/* Keep the old storage if zero-sized nullptr buffer was passed */
if(data.data() == nullptr && data.size() == 0)
CORRADE_ASSERT(Implementation::imageDataSize(*this) <= _dataSize, "BufferImage::setData(): bad current storage size, got" << _dataSize << "but expected at least" << Implementation::imageDataSize(*this), );
else {
void StbVorbisImporter::doOpenData(Containers::ArrayView<const char> data) {
Int numChannels, frequency;
Short* decodedData = nullptr;
Int samples = stb_vorbis_decode_memory(reinterpret_cast<const UnsignedByte*>(data.data()), data.size(), &numChannels, &frequency, &decodedData);
if(samples == -1) {
Error() << "Audio::StbVorbisImporter::openData(): the file signature is invalid";
return;
} else if (samples == -2) {
/* memory allocation failure */
Error() << "Audio::StbVorbisImporter::openData(): out of memory";
return;
}
Containers::Array<char> tempData{reinterpret_cast<char*>(decodedData), size_t(samples*numChannels*2),
[](char* data, size_t) { std::free(data); }};
_frequency = frequency;
/* Decide about format */
if(numChannels == 1)
_format = Buffer::Format::Mono16;
else if(numChannels == 2)
_format = Buffer::Format::Stereo16;
/** @todo Buffer::Format::*Float32 when extension support is done */
else {
Error() << "Audio::StbVorbisImporter::openData(): unsupported channel count"
<< numChannels << "with" << 16 << "bits per sample";
return;
}
_data = std::move(tempData);
return;
}
void DrWavImporter::doOpenData(const Containers::ArrayView<const char> data) {
drwav* const handle = drwav_open_memory(data.data(), data.size());
if(!handle) {
Error() << "Audio::DrWavImporter::openData(): failed to open and decode WAV data";
return;
}
Containers::ScopeGuard drwavClose{handle, drwav_close};
const std::uint64_t samples = handle->totalSampleCount;
const std::uint32_t frequency = handle->sampleRate;
const std::uint8_t numChannels = handle->channels;
const std::uint8_t bitsPerSample = handle->bitsPerSample;
/* If the bits per sample is exact, we can read data raw */
const Int notExactBitsPerSample = ((bitsPerSample % 8) ? 1 : 0);
/* Normalize bit amounts to multiples of 8, rounding up */
const UnsignedInt normalizedBytesPerSample = (bitsPerSample / 8) + notExactBitsPerSample;
if(numChannels == 0 || numChannels == 3 || numChannels == 5 || numChannels > 8 ||
normalizedBytesPerSample == 0 || normalizedBytesPerSample > 8) {
Error() << "Audio::DrWavImporter::openData(): unsupported channel count"
<< numChannels << "with" << bitsPerSample
<< "bits per sample";
return;
}
/* Can't load something with no samples */
if(samples == 0) {
Error() << "Audio::DrWavImporter::openData(): no samples";
return;
}
_frequency = frequency;
/* PCM has a lot of special cases, as we can read many formats directly */
if(handle->translatedFormatTag == DR_WAVE_FORMAT_PCM) {
_format = PcmFormatTable[numChannels-1][normalizedBytesPerSample-1];
CORRADE_INTERNAL_ASSERT(_format != BufferFormat{});
/* If the data is exactly 8 or 16 bits, we can read it raw */
if(!notExactBitsPerSample && normalizedBytesPerSample < 3) {
_data = readRaw(handle, samples, normalizedBytesPerSample);
return;
/* If the data is approximately 24 bits or has many channels, a float is more than enough */
} else if(normalizedBytesPerSample == 3 || (normalizedBytesPerSample > 3 && numChannels > 3)) {
_data = read32fPcm(handle, samples, numChannels, _format);
return;
/* If the data is close to 8 or 16 bits, we can convert it from 32-bit PCM */
} else if(normalizedBytesPerSample == 1 || normalizedBytesPerSample == 2) {
Containers::Array<char> tempData(samples*sizeof(Int));
drwav_read_s32(handle, samples, reinterpret_cast<Int*>(tempData.begin()));
/* 32-bit PCM can be sliced down to 8 or 16 for direct reading */
_data = convert32Pcm(tempData, samples, normalizedBytesPerSample);
/* Convert 8 bit data to unsigned */
if(normalizedBytesPerSample == 1)
for(char& item: _data) item = item - 128;
return;
}
/** @todo Allow loading of 32/64 bit streams to Double format to preserve all information */
/* ALaw of 8/16 bits with 1/2 channels can be loaded directly */
} else if(handle->translatedFormatTag == DR_WAVE_FORMAT_ALAW) {
if(numChannels < 3 && !notExactBitsPerSample && (bitsPerSample == 8 || bitsPerSample == 16) ) {
_format = ALawFormatTable[numChannels-1][normalizedBytesPerSample-1];
_data = readRaw(handle, samples, normalizedBytesPerSample);
return;
}
/* MuLaw of 8/16 bits with 1/2 channels can be loaded directly */
} else if(handle->translatedFormatTag == DR_WAVE_FORMAT_MULAW) {
if(numChannels < 3 && !notExactBitsPerSample && (bitsPerSample == 8 || bitsPerSample == 16) ) {
_format = MuLawFormatTable[numChannels-1][normalizedBytesPerSample-1];
_data = readRaw(handle, samples, normalizedBytesPerSample);
return;
}
/* IEEE float or double can be loaded directly */
} else if(handle->translatedFormatTag == DR_WAVE_FORMAT_IEEE_FLOAT) {
if(!notExactBitsPerSample && (bitsPerSample == 32 || bitsPerSample == 64)) {
_format = IeeeFormatTable[numChannels-1][(normalizedBytesPerSample / 4)-1];
_data = readRaw(handle, samples, normalizedBytesPerSample);
return;
}
}
/* If we don't know what the format is, read it out as 32 bit float for compatibility */
_data = read32fPcm(handle, samples, numChannels, _format);
return;
}
void DrFlacImporter::doOpenData(Containers::ArrayView<const char> data) {
drflac* const handle = drflac_open_memory(data.data(), data.size());
if(!handle) {
Error() << "Audio::DrFlacImporter::openData(): failed to open and decode FLAC data";
return;
}
Containers::ScopeGuard drflacClose{handle, drflac_close};
const std::uint64_t samples = handle->totalSampleCount;
const std::uint8_t numChannels = handle->channels;
const std::uint8_t bitsPerSample = handle->bitsPerSample;
/* FLAC supports any bitspersample from 4 to 64, but DrFlac always gives us
32-bit samples. So we normalize bit amounts to multiples of 8, rounding
up. */
const UnsignedInt normalizedBytesPerSample = (bitsPerSample + 7)/8;
if(numChannels == 0 || numChannels == 3 || numChannels == 5 || numChannels > 8 ||
normalizedBytesPerSample == 0 || normalizedBytesPerSample > 8) {
Error() << "Audio::DrFlacImporter::openData(): unsupported channel count"
<< numChannels << "with" << bitsPerSample
<< "bits per sample";
return;
}
/* Can't load something with no samples */
if(samples == 0) {
Error() << "Audio::DrFlacImporter::openData(): no samples";
return;
}
_frequency = handle->sampleRate;
_format = flacFormatTable[numChannels-1][normalizedBytesPerSample-1];
CORRADE_INTERNAL_ASSERT(_format != BufferFormat{});
/* 32-bit integers need to be normalized to Double (with a 32 bit mantissa) */
if(normalizedBytesPerSample == 4) {
Containers::Array<Int> tempData(samples);
drflac_read_s32(handle, samples, reinterpret_cast<Int*>(tempData.begin()));
/* If the channel is mono/stereo, we can use double samples */
if(numChannels < 3) {
Containers::Array<Double> doubleData(samples);
for(std::size_t i = 0; i < samples; ++i) {
doubleData[i] = Math::unpack<Double>(tempData[i]);
}
const char* doubleBegin = reinterpret_cast<const char*>(doubleData.begin());
const char* doubleEnd = reinterpret_cast<const char*>(doubleData.end());
_data = Containers::Array<char>(samples*sizeof(Double));
std::copy(doubleBegin, doubleEnd, _data.begin());
/* Otherwise, convert to float */
} else {
Containers::Array<Float> floatData(samples);
for(std::size_t i = 0; i < samples; ++i) {
floatData[i] = Math::unpack<Float>(tempData[i]);
}
const char* floatBegin = reinterpret_cast<const char*>(floatData.begin());
const char* floatEnd = reinterpret_cast<const char*>(floatData.end());
_data = Containers::Array<char>(samples*sizeof(Float));
std::copy(floatBegin, floatEnd, _data.begin());
}
return;
}
Containers::Array<char> tempData(samples*sizeof(Int));
drflac_read_s32(handle, samples, reinterpret_cast<Int*>(tempData.begin()));
_data = convert32PCM(tempData, samples, normalizedBytesPerSample);
/* 8-bit needs to become unsigned */
if(normalizedBytesPerSample == 1) {
for(char& item: _data) item = item - 128;
/* 24-bit needs to become float */
} else if(normalizedBytesPerSample == 3) {
Containers::Array<Float> floatData(samples);
for(std::size_t i = 0; i != samples; ++i) {
const UnsignedInt s0 = _data[i*3 + 0];
const UnsignedInt s1 = _data[i*3 + 1];
const UnsignedInt s2 = _data[i*3 + 2];
const Int intData = Int((s0 << 8) | (s1 << 16) | (s2 << 24));
floatData[i] = Math::unpack<Float>(intData);
}
const char* const floatBegin = reinterpret_cast<const char*>(floatData.begin());
const char* const floatEnd = reinterpret_cast<const char*>(floatData.end());
_data = Containers::Array<char>(samples*sizeof(Float));
std::copy(floatBegin, floatEnd, _data.begin());
}
return;
}
