Alex Harker
52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
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#ifndef PD_BUFFER_H
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#define PD_BUFFER_H
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#include "TableReader.hpp"
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class pd_buffer
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{
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struct fetch : public table_fetcher<double>
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{
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fetch(t_word *data, int length)
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: table_fetcher(1.0), mData(data), mLength(length) {}
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t_sample operator()(intptr_t offset)
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{
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return (offset < 0 || offset >= mLength) ? t_sample(0) : mData[offset].w_float;
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}
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t_word *mData;
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int mLength;
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};
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public:
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pd_buffer() : mArray(nullptr), mTable(nullptr), mLength(0) {}
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pd_buffer(t_symbol *name) : mTable(nullptr), mLength(0)
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{
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mArray = (t_garray *) pd_findbyclass(name, garray_class);
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if (mArray)
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garray_getfloatwords(mArray, &mLength, &mTable);
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}
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bool is_valid() const { return mTable && (mLength > 0); }
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int get_length() const { return mLength; }
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void read(double *output, const double *positions, unsigned long size, double amp, InterpType interpType)
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{
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table_read(fetch(mTable, mLength), output, positions, size, amp, interpType);
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}
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private:
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t_garray *mArray;
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t_word *mTable;
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int mLength;
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};
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#endif
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