Fix warnings in visualizer.cpp
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@@ -229,7 +229,7 @@ void Visualizer::update()
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{
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{
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auto chan_samples = m_read_samples/2;
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auto chan_samples = m_read_samples/2;
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int16_t buf_left[chan_samples], buf_right[chan_samples];
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int16_t buf_left[chan_samples], buf_right[chan_samples];
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for (ssize_t i = 0, j = 0; i < m_read_samples; i += 2, ++j)
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for (size_t i = 0, j = 0; i < m_read_samples; i += 2, ++j)
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{
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{
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buf_left[j] = m_sample_buffer[i];
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buf_left[j] = m_sample_buffer[i];
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buf_right[j] = m_sample_buffer[i+1];
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buf_right[j] = m_sample_buffer[i+1];
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@@ -456,7 +456,6 @@ void Visualizer::DrawFrequencySpectrum(int16_t *buf, ssize_t samples, size_t y_o
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const size_t win_width = w.getWidth();
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const size_t win_width = w.getWidth();
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double prev_bar_height = 0;
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size_t cur_bin = 0;
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size_t cur_bin = 0;
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while (cur_bin < m_fftw_results && Bin2Hz(cur_bin) < m_dft_logspace[0])
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while (cur_bin < m_fftw_results && Bin2Hz(cur_bin) < m_dft_logspace[0])
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{
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{
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@@ -486,7 +485,6 @@ void Visualizer::DrawFrequencySpectrum(int16_t *buf, ssize_t samples, size_t y_o
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// average bins
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// average bins
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bar_height /= count;
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bar_height /= count;
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prev_bar_height = bar_height;
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// log scale bar heights
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// log scale bar heights
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bar_height = (20 * log10(bar_height) + DYNAMIC_RANGE + GAIN) / DYNAMIC_RANGE;
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bar_height = (20 * log10(bar_height) + DYNAMIC_RANGE + GAIN) / DYNAMIC_RANGE;
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@@ -519,13 +517,12 @@ void Visualizer::DrawFrequencySpectrum(int16_t *buf, ssize_t samples, size_t y_o
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size_t y = flipped ? y_offset+j : y_offset+height-j-1;
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size_t y = flipped ? y_offset+j : y_offset+height-j-1;
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auto color = toColor(j, height);
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auto color = toColor(j, height);
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std::wstring ch;
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std::wstring ch;
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bool reverse = false;
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// select character to draw
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// select character to draw
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if (Config.visualizer_spectrum_smooth_look) {
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if (Config.visualizer_spectrum_smooth_look) {
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// smooth
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// smooth
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const size_t &size = SMOOTH_CHARS.size();
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const size_t &size = SMOOTH_CHARS.size();
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const int idx = static_cast<int>(size*h) % size;
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const size_t idx = static_cast<size_t>(size*h) % size;
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if (j < h-1 || idx == size-1) {
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if (j < h-1 || idx == size-1) {
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// full height
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// full height
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ch = SMOOTH_CHARS[size-1];
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ch = SMOOTH_CHARS[size-1];
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@@ -633,7 +630,7 @@ void Visualizer::GenLogspace()
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// Generate logspaced frequencies
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// Generate logspaced frequencies
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m_dft_logspace.resize(win_width);
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m_dft_logspace.resize(win_width);
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const double log_scale = log10(HZ_MAX) / (left_bins + m_dft_logspace.size() - 1);
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const double log_scale = log10(HZ_MAX) / (left_bins + m_dft_logspace.size() - 1);
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for (int i = left_bins; i < m_dft_logspace.size() + left_bins; ++i) {
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for (size_t i = left_bins; i < m_dft_logspace.size() + left_bins; ++i) {
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m_dft_logspace[i - left_bins] = pow(10, i * log_scale);
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m_dft_logspace[i - left_bins] = pow(10, i * log_scale);
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}
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}
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}
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}
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