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Add floating point denormal code

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This commit is contained in:
Mike Oliphant
2023-03-24 11:00:51 -07:00
parent 8c1c989cf4
commit 95ca0ad631
4 changed files with 116 additions and 3 deletions
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src/nam_lv2.cpp
+10
View File
@@ -9,6 +9,8 @@
#include <lv2/urid/urid.h>
#include <lv2/worker/worker.h>
#include "architecture.hpp"
#include "nam_plugin.h"
// LV2 Functions
@@ -41,7 +43,15 @@ static void activate(LV2_Handle) {}
static void run(LV2_Handle instance, uint32_t n_samples)
{
// Disable floating point denormals
std::fenv_t fe_state;
std::feholdexcept(&fe_state);
disable_denormals();
static_cast<NAM::Plugin*>(instance)->process(n_samples);
// restore previous floating point state
std::feupdateenv(&fe_state);
}
static void deactivate(LV2_Handle) {}
src/nam_plugin.cpp
+3 -3
View File
@@ -155,8 +155,8 @@ namespace NAM {
if (dblData.size() != n_samples)
dblData.resize(n_samples);
float inputLevel = pow(10, *(ports.input_level) * 0.05);
float outputLevel = pow(10, *(ports.output_level) * 0.05);
float inputLevel = powf(10, *(ports.input_level) * 0.05f);
float outputLevel = powf(10, *(ports.output_level) * 0.05f);
for (unsigned int i = 0; i < n_samples; i++)
{
@@ -176,7 +176,7 @@ namespace NAM {
for (unsigned int i = 0; i < n_samples; i++)
{
ports.audio_out[i] = dblData[i] * outputLevel;
ports.audio_out[i] = (float)(dblData[i] * outputLevel);
}
}
}