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*: add "noexcept" to many, many function prototypes

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This eliminates some overhead, because the compiler doesn't need to
consider these functions throwing.
This commit is contained in:
Max Kellermann
2017-05-08 14:44:49 +02:00
parent ac2e4e593d
commit 71f0ed8b74
272 changed files with 873 additions and 846 deletions
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2
src/pcm/ChannelsConverter.cxx
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@@ -57,7 +57,7 @@ PcmChannelsConverter::Close()
}
ConstBuffer<void>
PcmChannelsConverter::Convert(ConstBuffer<void> src)
PcmChannelsConverter::Convert(ConstBuffer<void> src) noexcept
{
switch (format) {
case SampleFormat::UNDEFINED:

2
src/pcm/ChannelsConverter.hxx
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@@ -75,7 +75,7 @@ public:
* @return the destination buffer
*/
gcc_pure
ConstBuffer<void> Convert(ConstBuffer<void> src);
ConstBuffer<void> Convert(ConstBuffer<void> src) noexcept;
};
#endif

4
src/pcm/FloatConvert.hxx
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@@ -37,7 +37,7 @@ struct FloatToIntegerSampleConvert {
static constexpr SV factor = 1 << (DstTraits::BITS - 1);
gcc_const
static DV Convert(SV src) {
static DV Convert(SV src) noexcept {
return PcmClamp<F, Traits>(SL(src * factor));
}
};
@@ -56,7 +56,7 @@ struct IntegerToFloatSampleConvert {
static constexpr DV factor = 0.5 / (1 << (SrcTraits::BITS - 2));
gcc_const
static DV Convert(SV src) {
static DV Convert(SV src) noexcept {
return DV(src) * factor;
}
};

4
src/pcm/FormatConverter.cxx
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@@ -54,7 +54,7 @@ PcmFormatConverter::Open(SampleFormat _src_format, SampleFormat _dest_format)
}
void
PcmFormatConverter::Close()
PcmFormatConverter::Close() noexcept
{
#ifndef NDEBUG
src_format = SampleFormat::UNDEFINED;
@@ -63,7 +63,7 @@ PcmFormatConverter::Close()
}
ConstBuffer<void>
PcmFormatConverter::Convert(ConstBuffer<void> src)
PcmFormatConverter::Convert(ConstBuffer<void> src) noexcept
{
switch (dest_format) {
case SampleFormat::UNDEFINED:

6
src/pcm/FormatConverter.hxx
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@@ -65,18 +65,16 @@ public:
/**
* Closes the object. After that, you may call Open() again.
*/
void Close();
void Close() noexcept;
/**
* Convert a block of PCM data.
*
* Throws std::runtime_error on error.
*
* @param src the input buffer
* @return the destination buffer
*/
gcc_pure
ConstBuffer<void> Convert(ConstBuffer<void> src);
ConstBuffer<void> Convert(ConstBuffer<void> src) noexcept;
};
#endif

8
src/pcm/PcmExport.cxx
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@@ -84,7 +84,7 @@ PcmExport::Open(SampleFormat sample_format, unsigned _channels,
}
size_t
PcmExport::GetFrameSize(const AudioFormat &audio_format) const
PcmExport::GetFrameSize(const AudioFormat &audio_format) const noexcept
{
if (pack24)
/* packed 24 bit samples (3 bytes per sample) */
@@ -109,7 +109,7 @@ PcmExport::GetFrameSize(const AudioFormat &audio_format) const
}
unsigned
PcmExport::Params::CalcOutputSampleRate(unsigned sample_rate) const
PcmExport::Params::CalcOutputSampleRate(unsigned sample_rate) const noexcept
{
#ifdef ENABLE_DSD
if (dsd_u16)
@@ -132,7 +132,7 @@ PcmExport::Params::CalcOutputSampleRate(unsigned sample_rate) const
}
unsigned
PcmExport::Params::CalcInputSampleRate(unsigned sample_rate) const
PcmExport::Params::CalcInputSampleRate(unsigned sample_rate) const noexcept
{
#ifdef ENABLE_DSD
if (dsd_u16)
@@ -209,7 +209,7 @@ PcmExport::Export(ConstBuffer<void> data)
}
size_t
PcmExport::CalcSourceSize(size_t size) const
PcmExport::CalcSourceSize(size_t size) const noexcept
{
if (pack24)
/* 32 bit to 24 bit conversion (4 to 3 bytes) */

8
src/pcm/PcmExport.hxx
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@@ -135,13 +135,13 @@ public:
* one output word (32 bits), dividing the sample rate by 4.
*/
gcc_pure
unsigned CalcOutputSampleRate(unsigned input_sample_rate) const;
unsigned CalcOutputSampleRate(unsigned input_sample_rate) const noexcept;
/**
* The inverse of CalcOutputSampleRate().
*/
gcc_pure
unsigned CalcInputSampleRate(unsigned output_sample_rate) const;
unsigned CalcInputSampleRate(unsigned output_sample_rate) const noexcept;
};
/**
@@ -167,7 +167,7 @@ public:
* Calculate the size of one output frame.
*/
gcc_pure
size_t GetFrameSize(const AudioFormat &audio_format) const;
size_t GetFrameSize(const AudioFormat &audio_format) const noexcept;
/**
* Export a PCM buffer.
@@ -183,7 +183,7 @@ public:
* pcm_export() source buffer.
*/
gcc_pure
size_t CalcSourceSize(size_t dest_size) const;
size_t CalcSourceSize(size_t dest_size) const noexcept;
};
#endif

8
src/pcm/PcmFormat.cxx
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@@ -161,7 +161,7 @@ pcm_allocate_float_to_16(PcmBuffer &buffer, ConstBuffer<float> src)
ConstBuffer<int16_t>
pcm_convert_to_16(PcmBuffer &buffer, PcmDither &dither,
SampleFormat src_format, ConstBuffer<void> src)
SampleFormat src_format, ConstBuffer<void> src) noexcept
{
switch (src_format) {
case SampleFormat::UNDEFINED:
@@ -229,7 +229,7 @@ pcm_allocate_float_to_24(PcmBuffer &buffer, ConstBuffer<float> src)
ConstBuffer<int32_t>
pcm_convert_to_24(PcmBuffer &buffer,
SampleFormat src_format, ConstBuffer<void> src)
SampleFormat src_format, ConstBuffer<void> src) noexcept
{
switch (src_format) {
case SampleFormat::UNDEFINED:
@@ -297,7 +297,7 @@ pcm_allocate_float_to_32(PcmBuffer &buffer, ConstBuffer<float> src)
ConstBuffer<int32_t>
pcm_convert_to_32(PcmBuffer &buffer,
SampleFormat src_format, ConstBuffer<void> src)
SampleFormat src_format, ConstBuffer<void> src) noexcept
{
switch (src_format) {
case SampleFormat::UNDEFINED:
@@ -365,7 +365,7 @@ pcm_allocate_32_to_float(PcmBuffer &buffer, ConstBuffer<int32_t> src)
ConstBuffer<float>
pcm_convert_to_float(PcmBuffer &buffer,
SampleFormat src_format, ConstBuffer<void> src)
SampleFormat src_format, ConstBuffer<void> src) noexcept
{
switch (src_format) {
case SampleFormat::UNDEFINED:

8
src/pcm/PcmFormat.hxx
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@@ -40,7 +40,7 @@ class PcmDither;
gcc_pure
ConstBuffer<int16_t>
pcm_convert_to_16(PcmBuffer &buffer, PcmDither &dither,
SampleFormat src_format, ConstBuffer<void> src);
SampleFormat src_format, ConstBuffer<void> src) noexcept;
/**
* Converts PCM samples to 24 bit (32 bit alignment).
@@ -52,7 +52,7 @@ pcm_convert_to_16(PcmBuffer &buffer, PcmDither &dither,
gcc_pure
ConstBuffer<int32_t>
pcm_convert_to_24(PcmBuffer &buffer,
SampleFormat src_format, ConstBuffer<void> src);
SampleFormat src_format, ConstBuffer<void> src) noexcept;
/**
* Converts PCM samples to 32 bit.
@@ -64,7 +64,7 @@ pcm_convert_to_24(PcmBuffer &buffer,
gcc_pure
ConstBuffer<int32_t>
pcm_convert_to_32(PcmBuffer &buffer,
SampleFormat src_format, ConstBuffer<void> src);
SampleFormat src_format, ConstBuffer<void> src) noexcept;
/**
* Converts PCM samples to 32 bit floating point.
@@ -76,6 +76,6 @@ pcm_convert_to_32(PcmBuffer &buffer,
gcc_pure
ConstBuffer<float>
pcm_convert_to_float(PcmBuffer &buffer,
SampleFormat src_format, ConstBuffer<void> src);
SampleFormat src_format, ConstBuffer<void> src) noexcept;
#endif

2
src/pcm/PcmUtils.hxx
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@@ -36,7 +36,7 @@ template<SampleFormat F> struct SampleTraits;
template<SampleFormat F, class Traits=SampleTraits<F>>
gcc_const
static inline typename Traits::value_type
PcmClamp(typename Traits::long_type x)
PcmClamp(typename Traits::long_type x) noexcept
{
typedef typename Traits::value_type T;

2
src/pcm/SampleFormat.cxx
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@@ -22,7 +22,7 @@
#include <assert.h>
const char *
sample_format_to_string(SampleFormat format)
sample_format_to_string(SampleFormat format) noexcept
{
switch (format) {
case SampleFormat::UNDEFINED:

2
src/pcm/SampleFormat.hxx
View File

@@ -124,6 +124,6 @@ sample_format_size(SampleFormat format)
*/
gcc_pure gcc_malloc
const char *
sample_format_to_string(SampleFormat format);
sample_format_to_string(SampleFormat format) noexcept;
#endif

4
src/pcm/SoxrResampler.cxx
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@@ -56,7 +56,7 @@ static constexpr struct {
gcc_const
static const char *
soxr_quality_name(unsigned long recipe)
soxr_quality_name(unsigned long recipe) noexcept
{
for (const auto *i = soxr_quality_table;; ++i) {
assert(i->name != nullptr);
@@ -68,7 +68,7 @@ soxr_quality_name(unsigned long recipe)
gcc_pure
static unsigned long
soxr_parse_quality(const char *quality)
soxr_parse_quality(const char *quality) noexcept
{
if (quality == nullptr)
return SOXR_DEFAULT_RECIPE;

2
src/pcm/Volume.cxx
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@@ -123,7 +123,7 @@ PcmVolume::Open(SampleFormat _format)
}
ConstBuffer<void>
PcmVolume::Apply(ConstBuffer<void> src)
PcmVolume::Apply(ConstBuffer<void> src) noexcept
{
if (volume == PCM_VOLUME_1)
return src;

2
src/pcm/Volume.hxx
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@@ -112,7 +112,7 @@ public:
* Apply the volume level.
*/
gcc_pure
ConstBuffer<void> Apply(ConstBuffer<void> src);
ConstBuffer<void> Apply(ConstBuffer<void> src) noexcept;
};
#endif