diff options
Diffstat (limited to 'alc/backends')
| -rw-r--r-- | alc/backends/wave.cpp | 78 |
1 files changed, 39 insertions, 39 deletions
diff --git a/alc/backends/wave.cpp b/alc/backends/wave.cpp index 95064906..60cebd7f 100644 --- a/alc/backends/wave.cpp +++ b/alc/backends/wave.cpp @@ -55,6 +55,11 @@ using std::chrono::nanoseconds; using ubyte = unsigned char; using ushort = unsigned short; +struct FileDeleter { + void operator()(FILE *f) { fclose(f); } +}; +using FilePtr = std::unique_ptr<FILE,FileDeleter>; + /* NOLINTNEXTLINE(*-avoid-c-arrays) */ constexpr char waveDevice[] = "Wave File Writer"; @@ -102,7 +107,7 @@ struct WaveBackend final : public BackendBase { void start() override; void stop() override; - FILE *mFile{nullptr}; + FilePtr mFile{nullptr}; long mDataStart{-1}; std::vector<std::byte> mBuffer; @@ -111,12 +116,7 @@ struct WaveBackend final : public BackendBase { std::thread mThread; }; -WaveBackend::~WaveBackend() -{ - if(mFile) - fclose(mFile); - mFile = nullptr; -} +WaveBackend::~WaveBackend() = default; int WaveBackend::mixerProc() { @@ -168,8 +168,8 @@ int WaveBackend::mixerProc() } } - const size_t fs{fwrite(mBuffer.data(), frameSize, mDevice->UpdateSize, mFile)}; - if(fs < mDevice->UpdateSize || ferror(mFile)) + const size_t fs{fwrite(mBuffer.data(), frameSize, mDevice->UpdateSize, mFile.get())}; + if(fs < mDevice->UpdateSize || ferror(mFile.get())) { ERR("Error writing to file\n"); mDevice->handleDisconnect("Failed to write playback samples"); @@ -211,10 +211,10 @@ void WaveBackend::open(std::string_view name) #ifdef _WIN32 { std::wstring wname{utf8_to_wstr(fname.value())}; - mFile = _wfopen(wname.c_str(), L"wb"); + mFile.reset(_wfopen(wname.c_str(), L"wb")); } #else - mFile = fopen(fname->c_str(), "wb"); + mFile.reset(fopen(fname->c_str(), "wb")); #endif if(!mFile) throw al::backend_exception{al::backend_error::DeviceError, "Could not open file '%s': %s", @@ -228,8 +228,8 @@ bool WaveBackend::reset() uint channels{0}, bytes{0}, chanmask{0}; bool isbformat{false}; - fseek(mFile, 0, SEEK_SET); - clearerr(mFile); + fseek(mFile.get(), 0, SEEK_SET); + clearerr(mFile.get()); if(GetConfigValueBool({}, "wave", "bformat", false)) { @@ -280,48 +280,48 @@ bool WaveBackend::reset() bytes = mDevice->bytesFromFmt(); channels = mDevice->channelsFromFmt(); - rewind(mFile); + rewind(mFile.get()); - fputs("RIFF", mFile); - fwrite32le(0xFFFFFFFF, mFile); // 'RIFF' header len; filled in at close + fputs("RIFF", mFile.get()); + fwrite32le(0xFFFFFFFF, mFile.get()); // 'RIFF' header len; filled in at close - fputs("WAVE", mFile); + fputs("WAVE", mFile.get()); - fputs("fmt ", mFile); - fwrite32le(40, mFile); // 'fmt ' header len; 40 bytes for EXTENSIBLE + fputs("fmt ", mFile.get()); + fwrite32le(40, mFile.get()); // 'fmt ' header len; 40 bytes for EXTENSIBLE // 16-bit val, format type id (extensible: 0xFFFE) - fwrite16le(0xFFFE, mFile); + fwrite16le(0xFFFE, mFile.get()); // 16-bit val, channel count - fwrite16le(static_cast<ushort>(channels), mFile); + fwrite16le(static_cast<ushort>(channels), mFile.get()); // 32-bit val, frequency - fwrite32le(mDevice->Frequency, mFile); + fwrite32le(mDevice->Frequency, mFile.get()); // 32-bit val, bytes per second - fwrite32le(mDevice->Frequency * channels * bytes, mFile); + fwrite32le(mDevice->Frequency * channels * bytes, mFile.get()); // 16-bit val, frame size - fwrite16le(static_cast<ushort>(channels * bytes), mFile); + fwrite16le(static_cast<ushort>(channels * bytes), mFile.get()); // 16-bit val, bits per sample - fwrite16le(static_cast<ushort>(bytes * 8), mFile); + fwrite16le(static_cast<ushort>(bytes * 8), mFile.get()); // 16-bit val, extra byte count - fwrite16le(22, mFile); + fwrite16le(22, mFile.get()); // 16-bit val, valid bits per sample - fwrite16le(static_cast<ushort>(bytes * 8), mFile); + fwrite16le(static_cast<ushort>(bytes * 8), mFile.get()); // 32-bit val, channel mask - fwrite32le(chanmask, mFile); + fwrite32le(chanmask, mFile.get()); // 16 byte GUID, sub-type format std::ignore = fwrite((mDevice->FmtType == DevFmtFloat) ? (isbformat ? SUBTYPE_BFORMAT_FLOAT.data() : SUBTYPE_FLOAT.data()) : - (isbformat ? SUBTYPE_BFORMAT_PCM.data() : SUBTYPE_PCM.data()), 1, 16, mFile); + (isbformat ? SUBTYPE_BFORMAT_PCM.data() : SUBTYPE_PCM.data()), 1, 16, mFile.get()); - fputs("data", mFile); - fwrite32le(0xFFFFFFFF, mFile); // 'data' header len; filled in at close + fputs("data", mFile.get()); + fwrite32le(0xFFFFFFFF, mFile.get()); // 'data' header len; filled in at close - if(ferror(mFile)) + if(ferror(mFile.get())) { ERR("Error writing header: %s\n", strerror(errno)); return false; } - mDataStart = ftell(mFile); + mDataStart = ftell(mFile.get()); setDefaultWFXChannelOrder(); @@ -333,7 +333,7 @@ bool WaveBackend::reset() void WaveBackend::start() { - if(mDataStart > 0 && fseek(mFile, 0, SEEK_END) != 0) + if(mDataStart > 0 && fseek(mFile.get(), 0, SEEK_END) != 0) WARN("Failed to seek on output file\n"); try { mKillNow.store(false, std::memory_order_release); @@ -353,14 +353,14 @@ void WaveBackend::stop() if(mDataStart > 0) { - long size{ftell(mFile)}; + long size{ftell(mFile.get())}; if(size > 0) { long dataLen{size - mDataStart}; - if(fseek(mFile, 4, SEEK_SET) == 0) - fwrite32le(static_cast<uint>(size-8), mFile); // 'WAVE' header len - if(fseek(mFile, mDataStart-4, SEEK_SET) == 0) - fwrite32le(static_cast<uint>(dataLen), mFile); // 'data' header len + if(fseek(mFile.get(), 4, SEEK_SET) == 0) + fwrite32le(static_cast<uint>(size-8), mFile.get()); // 'WAVE' header len + if(fseek(mFile.get(), mDataStart-4, SEEK_SET) == 0) + fwrite32le(static_cast<uint>(dataLen), mFile.get()); // 'data' header len } } } |