120 lines
2.6 KiB
C
120 lines
2.6 KiB
C
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#ifndef AUDIOGRAPHER_TESTS_UTILS_H
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#define AUDIOGRAPHER_TESTS_UTILS_H
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// Includes we want almost always
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#include <cppunit/extensions/HelperMacros.h>
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#include <boost/shared_ptr.hpp>
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// includes used in this file
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#include "audiographer/sink.h"
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#include "audiographer/exception.h"
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#include <vector>
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#include <cstring>
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#include <cstdlib>
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#include <ctime>
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using AudioGrapher::nframes_t;
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struct TestUtils
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{
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template<typename T>
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static bool array_equals (T const * a, T const * b, nframes_t frames)
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{
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for (nframes_t i = 0; i < frames; ++i) {
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if (a[i] != b[i]) {
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return false;
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}
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}
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return true;
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}
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template<typename T>
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static bool array_filled (T const * array, nframes_t frames)
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{
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for (nframes_t i = 0; i < frames; ++i) {
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if (array[i] == static_cast<T> (0.0)) {
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return false;
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}
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}
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return true;
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}
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/// Generate random data, all samples guaranteed not to be 0.0, 1.0 or -1.0
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static float * init_random_data (nframes_t frames, float range = 1.0)
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{
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unsigned int const granularity = 4096;
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float * data = new float[frames];
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srand (std::time (NULL));
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for (nframes_t i = 0; i < frames; ++i) {
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do {
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int biased_int = (rand() % granularity) - (granularity / 2);
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data[i] = (range * biased_int) / granularity;
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} while (data[i] == 0.0 || data[i] == 1.0 || data[i] == -1.0);
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}
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return data;
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}
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};
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template<typename T>
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class VectorSink : public AudioGrapher::Sink<T>
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{
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public:
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virtual void process (AudioGrapher::ProcessContext<T> const & c)
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{
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data.resize (c.frames());
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memcpy (&data[0], c.data(), c.frames() * sizeof(T));
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}
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void process (AudioGrapher::ProcessContext<T> & c) { AudioGrapher::Sink<T>::process (c); }
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using AudioGrapher::Sink<T>::process;
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std::vector<T> const & get_data() const { return data; }
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T const * get_array() const { return &data[0]; }
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void reset() { data.clear(); }
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protected:
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std::vector<T> data;
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};
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template<typename T>
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class AppendingVectorSink : public VectorSink<T>
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{
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public:
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void process (AudioGrapher::ProcessContext<T> const & c)
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{
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std::vector<T> & data (VectorSink<T>::data);
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data.resize (total_frames + c.frames());
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memcpy (&data[total_frames], c.data(), c.frames() * sizeof(T));
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total_frames += c.frames();
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}
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using AudioGrapher::Sink<T>::process;
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void reset ()
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{
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total_frames = 0;
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VectorSink<T>::reset();
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}
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private:
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nframes_t total_frames;
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};
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template<typename T>
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class ThrowingSink : public AudioGrapher::Sink<T>
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{
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public:
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void process (AudioGrapher::ProcessContext<T> const &)
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{
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throw AudioGrapher::Exception(*this, "ThrowingSink threw!");
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}
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using AudioGrapher::Sink<T>::process;
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};
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#endif // AUDIOGRAPHER_TESTS_UTILS_H
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