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#include <cxxtest/TestSuite.h>
#include "sound/decoders/raw.h"
#include "common/stream.h"
#include "common/endian.h"
#include <math.h>
#include <limits>
class RawStreamTestSuite : public CxxTest::TestSuite
{
public:
template<typename T>
static T *createSine(int sampleRate, int time) {
T *sine = (T *)malloc(sizeof(T) * time * sampleRate);
const T maxValue = std::numeric_limits<T>::max();
for (int i = 0; i < time * sampleRate; ++i)
sine[i] = (T)(sin((double)i / sampleRate * 2 * PI) * maxValue);
return sine;
}
static Audio::SeekableAudioStream *createSineStream8Bit(int sampleRate, int time, const int8 **sineP) {
int8 *sine = createSine<int8>(sampleRate, time);
Common::SeekableReadStream *sD = new Common::MemoryReadStream((const byte *)sine, sampleRate * time, DisposeAfterUse::YES);
Audio::SeekableAudioStream *s = Audio::makeRawStream(sD, sampleRate, 0);
if (sineP)
*sineP = sine;
return s;
}
static Audio::SeekableAudioStream *createSineStream16Bit(int sampleRate, int time, bool le, const int16 **sineP) {
int16 *sine = createSine<int16>(sampleRate, time);
if (le) {
for (int i = 0; i < sampleRate * time; ++i)
WRITE_LE_UINT16(&sine[i], sine[i]);
} else {
for (int i = 0; i < sampleRate * time; ++i)
WRITE_BE_UINT16(&sine[i], sine[i]);
}
Common::SeekableReadStream *sD = new Common::MemoryReadStream((const byte *)sine, sizeof(int16) * sampleRate * time, DisposeAfterUse::YES);
Audio::SeekableAudioStream *s = Audio::makeRawStream(sD, sampleRate, Audio::FLAG_16BITS | (le ? Audio::FLAG_LITTLE_ENDIAN : 0));
if (sineP)
*sineP = sine;
return s;
}
void test_read_buffer_8_bit_mono() {
const int sampleRate = 11025;
const int time = 2;
const int8 *sine;
Audio::SeekableAudioStream *s = createSineStream8Bit(sampleRate, time, &sine);
int16 *buffer = new int16[sampleRate * time];
TS_ASSERT_EQUALS(s->readBuffer(buffer, sampleRate * time), sampleRate * time);
for (int i = 0; i < sampleRate * time; ++i)
TS_ASSERT_EQUALS(buffer[i], sine[i] << 8);
TS_ASSERT_EQUALS(s->endOfData(), true);
delete[] buffer;
delete s;
}
void test_read_buffer_16_bit_be_mono() {
const int sampleRate = 11025;
const int time = 2;
const int16 *sine = 0;
Audio::SeekableAudioStream *s = createSineStream16Bit(sampleRate, time, false, &sine);
int16 *buffer = new int16[sampleRate * time];
TS_ASSERT_EQUALS(s->readBuffer(buffer, sampleRate * time), sampleRate * time);
for (int i = 0; i < sampleRate * time; ++i)
TS_ASSERT_EQUALS(buffer[i], (int16)READ_BE_UINT16(&sine[i]));
TS_ASSERT_EQUALS(s->endOfData(), true);
delete[] buffer;
delete s;
}
void test_read_buffer_16_bit_le_mono() {
const int sampleRate = 11025;
const int time = 2;
const int16 *sine = 0;
Audio::SeekableAudioStream *s = createSineStream16Bit(sampleRate, time, true, &sine);
int16 *buffer = new int16[sampleRate * time];
TS_ASSERT_EQUALS(s->readBuffer(buffer, sampleRate * time), sampleRate * time);
for (int i = 0; i < sampleRate * time; ++i)
TS_ASSERT_EQUALS(buffer[i], (int16)READ_LE_UINT16(&sine[i]));
TS_ASSERT_EQUALS(s->endOfData(), true);
delete[] buffer;
delete s;
}
};
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