mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-10-01 01:26:06 -04:00
Moved baseband temporary buffers back into class member variables.
Significant performance hit when declaring on stack. C++ wants to initialize std::array or even raw array with element constructors, was resulting in ~7% CPU utilization, for a buffer that was immediately written over anyway.
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5547782f5a
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d9017530c6
@ -36,12 +36,6 @@ AISProcessor::AISProcessor() {
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void AISProcessor::execute(const buffer_c8_t& buffer) {
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/* 2.4576MHz, 2048 samples */
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std::array<complex16_t, 512> dst;
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const buffer_c16_t dst_buffer {
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dst.data(),
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dst.size()
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};
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const auto decim_0_out = decim_0.execute(buffer, dst_buffer);
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const auto decim_1_out = decim_1.execute(decim_0_out, dst_buffer);
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const auto decimator_out = decim_1_out;
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@ -47,6 +47,12 @@ public:
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void execute(const buffer_c8_t& buffer) override;
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private:
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std::array<complex16_t, 512> dst;
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const buffer_c16_t dst_buffer {
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dst.data(),
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dst.size()
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};
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dsp::decimate::FIRC8xR16x24FS4Decim8 decim_0;
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dsp::decimate::FIRC16xR16x32Decim8 decim_1;
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dsp::matched_filter::MatchedFilter mf { baseband::ais::rrc_taps_38k4_4t_p, 2 };
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@ -28,12 +28,6 @@ void NarrowbandAMAudio::execute(const buffer_c8_t& buffer) {
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return;
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}
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std::array<complex16_t, 512> dst;
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const buffer_c16_t dst_buffer {
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dst.data(),
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dst.size()
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};
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const auto decim_0_out = decim_0.execute(buffer, dst_buffer);
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const auto decim_1_out = decim_1.execute(decim_0_out, dst_buffer);
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const auto channel_out = channel_filter.execute(decim_1_out, dst_buffer);
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@ -42,11 +36,6 @@ void NarrowbandAMAudio::execute(const buffer_c8_t& buffer) {
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feed_channel_stats(channel_out);
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channel_spectrum.feed(channel_out, channel_filter_pass_f, channel_filter_stop_f);
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const buffer_s16_t work_audio_buffer {
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(int16_t*)dst.data(),
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sizeof(*dst.data()) * dst.size()
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};
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auto audio = demod.execute(channel_out, work_audio_buffer);
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audio_hpf.execute_in_place(audio);
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@ -40,6 +40,16 @@ public:
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void on_message(const Message* const message) override;
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private:
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std::array<complex16_t, 512> dst;
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const buffer_c16_t dst_buffer {
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dst.data(),
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dst.size()
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};
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const buffer_s16_t work_audio_buffer {
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(int16_t*)dst.data(),
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sizeof(*dst.data()) * dst.size()
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};
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dsp::decimate::FIRC8xR16x24FS4Decim8 decim_0;
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dsp::decimate::FIRC16xR16x32Decim8 decim_1;
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dsp::decimate::FIRAndDecimateComplex channel_filter;
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@ -29,12 +29,6 @@ void NarrowbandFMAudio::execute(const buffer_c8_t& buffer) {
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return;
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}
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std::array<complex16_t, 512> dst;
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const buffer_c16_t dst_buffer {
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dst.data(),
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dst.size()
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};
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const auto decim_0_out = decim_0.execute(buffer, dst_buffer);
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const auto decim_1_out = decim_1.execute(decim_0_out, dst_buffer);
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const auto channel_out = channel_filter.execute(decim_1_out, dst_buffer);
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@ -42,11 +36,6 @@ void NarrowbandFMAudio::execute(const buffer_c8_t& buffer) {
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feed_channel_stats(channel_out);
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channel_spectrum.feed(channel_out, channel_filter_pass_f, channel_filter_stop_f);
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const buffer_s16_t work_audio_buffer {
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(int16_t*)dst.data(),
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sizeof(*dst.data()) * dst.size()
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};
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auto audio = demod.execute(channel_out, work_audio_buffer);
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static uint64_t audio_present_history = 0;
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@ -39,6 +39,16 @@ public:
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void on_message(const Message* const message) override;
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private:
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std::array<complex16_t, 512> dst;
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const buffer_c16_t dst_buffer {
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dst.data(),
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dst.size()
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};
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const buffer_s16_t work_audio_buffer {
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(int16_t*)dst.data(),
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sizeof(*dst.data()) * dst.size()
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};
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dsp::decimate::FIRC8xR16x24FS4Decim8 decim_0;
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dsp::decimate::FIRC16xR16x32Decim8 decim_1;
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@ -57,12 +57,6 @@ TPMSProcessor::TPMSProcessor() {
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void TPMSProcessor::execute(const buffer_c8_t& buffer) {
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/* 2.4576MHz, 2048 samples */
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std::array<complex16_t, 512> dst;
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const buffer_c16_t dst_buffer {
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dst.data(),
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dst.size()
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};
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const auto decim_0_out = decim_0.execute(buffer, dst_buffer);
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const auto decim_1_out = decim_1.execute(decim_0_out, dst_buffer);
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const auto decimator_out = decim_1_out;
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@ -59,6 +59,12 @@ public:
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void execute(const buffer_c8_t& buffer) override;
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private:
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std::array<complex16_t, 512> dst;
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const buffer_c16_t dst_buffer {
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dst.data(),
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dst.size()
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};
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dsp::decimate::FIRC8xR16x24FS4Decim4 decim_0;
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dsp::decimate::FIRC16xR16x16Decim2 decim_1;
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@ -28,21 +28,10 @@ void WidebandFMAudio::execute(const buffer_c8_t& buffer) {
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return;
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}
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std::array<complex16_t, 512> dst;
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const buffer_c16_t dst_buffer {
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dst.data(),
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dst.size()
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};
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const auto decim_0_out = decim_0.execute(buffer, dst_buffer);
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const auto decim_1_out = decim_1.execute(decim_0_out, dst_buffer);
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const auto decimator_out = decim_1_out;
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const buffer_s16_t work_audio_buffer {
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(int16_t*)decimator_out.p,
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sizeof(*decimator_out.p) * decimator_out.count
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};
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auto channel = decimator_out;
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// TODO: Feed channel_stats post-decimation data?
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@ -36,6 +36,16 @@ public:
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void on_message(const Message* const message) override;
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private:
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std::array<complex16_t, 512> dst;
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const buffer_c16_t dst_buffer {
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dst.data(),
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dst.size()
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};
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const buffer_s16_t work_audio_buffer {
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(int16_t*)dst.data(),
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sizeof(dst) / sizeof(int16_t)
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};
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dsp::decimate::FIRC8xR16x24FS4Decim4 decim_0;
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dsp::decimate::FIRC16xR16x16Decim2 decim_1;
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