Alex Harker
81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
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#include "FrameLib_Constant.h"
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#include <cmath>
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FrameLib_Constant::FrameLib_Constant(FrameLib_Context context, FrameLib_Parameters::Serial *serialisedParameters, FrameLib_Proxy *proxy) : FrameLib_Processor(context, proxy, &sParamInfo, 2, 1)
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{
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mParameters.addEnum(kConstant, "constant", 0);
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mParameters.addEnumItem(kPI, "pi");
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mParameters.addEnumItem(kE, "e");
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mParameters.addEnumItem(kSqrt2, "sqrt2");
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mParameters.addEnumItem(kInvPI, "1/pi");
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mParameters.addEnumItem(kInvE, "1/e");
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mParameters.addEnumItem(kInvSqrt2, "1/sqrt2");
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mParameters.addEnumItem(kEpsilon, "epsilon");
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mParameters.addDouble(kMultiplier, "multiplier", 1.0, 1);
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mParameters.set(serialisedParameters);
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setParameterInput(1);
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}
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// Info
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std::string FrameLib_Constant::objectInfo(bool verbose)
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{
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return formatInfo("Outputs the specified useful constant: Output is a single value. The constant can be multiplied before output",
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"Outputs the specified useful constant.", verbose);
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}
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std::string FrameLib_Constant::inputInfo(unsigned long idx, bool verbose)
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{
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if (idx)
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return parameterInputInfo(verbose);
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else
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return formatInfo("Trigger Input - input frames generate output", "Trigger Input", verbose);
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}
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std::string FrameLib_Constant::outputInfo(unsigned long idx, bool verbose)
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{
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return "Output Values";
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}
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// Parameter Info
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FrameLib_Constant::ParameterInfo FrameLib_Constant::sParamInfo;
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FrameLib_Constant::ParameterInfo::ParameterInfo()
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{
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add("Sets the constant to output.");
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add("Sets the multiplier.");
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}
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// Process
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void FrameLib_Constant::process()
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{
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requestOutputSize(0, 1);
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if (allocateOutputs())
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{
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unsigned long size;
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double *output = getOutput(0, &size);
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double value = 1.0;
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switch (static_cast<Constants>(mParameters.getInt(kConstant)))
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{
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case kPI: value = M_PI; break;
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case kE: value = M_E; break;
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case kSqrt2: value = M_SQRT2; break;
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case kInvPI: value = M_1_PI; break;
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case kInvE: value = 1.0/M_E; break;
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case kInvSqrt2: value = M_SQRT1_2; break;
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case kEpsilon: value = std::numeric_limits<double>::epsilon(); break;
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}
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output[0] = value * mParameters.getValue(kMultiplier);
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}
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}
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