markmental/yapb-noob-edition
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refactor: move wave length calculation to util class

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jeefo 2023-08-22 09:45:29 +03:00
commit 5fddfed5ce
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8 changed files with 87 additions and 86 deletions
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79
src/engine.cpp
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@ -269,85 +269,6 @@ void Game::testHull (const Vector &start, const Vector &end, int ignoreFlags, in
engfuncs.pfnTraceHull (start, end, !!(ignoreFlags & TraceIgnore::Monsters), hullNumber, ignoreEntity, ptr);
}
// helper class for reading wave header
class WaveEndianessHelper : public NonCopyable {
private:
#if defined (CR_ARCH_CPU_BIG_ENDIAN)
bool little { false };
#else
bool little { true };
#endif
public:
uint16_t read16 (uint16_t value) {
return little ? value : static_cast <uint16_t> ((value >> 8) | (value << 8));
}
uint32_t read32 (uint32_t value) {
return little ? value : (((value & 0x000000ff) << 24) | ((value & 0x0000ff00) << 8) | ((value & 0x00ff0000) >> 8) | ((value & 0xff000000) >> 24));
}
bool isWave (char *format) {
if (little && memcmp (format, "WAVE", 4) == 0) {
return true;
}
return *reinterpret_cast <uint32_t *> (format) == 0x57415645;
}
};
float Game::getWaveLen (const char *fileName) {
auto filePath = strings.joinPath (cv_chatter_path.str (), strings.format ("%s.wav", fileName));
MemFile fp (filePath);
// we're got valid handle?
if (!fp) {
return 0.0f;
}
// else fuck with manual search
struct WavHeader {
char riff[4];
uint32_t chunkSize;
char wave[4];
char fmt[4];
uint32_t subchunk1Size;
uint16_t audioFormat;
uint16_t numChannels;
uint32_t sampleRate;
uint32_t byteRate;
uint16_t blockAlign;
uint16_t bitsPerSample;
char dataChunkId[4];
uint32_t dataChunkLength;
} header {};
WaveEndianessHelper weh;
if (fp.read (&header, sizeof (WavHeader)) == 0) {
logger.error ("Wave File %s - has wrong or unsupported format", filePath);
return 0.0f;
}
fp.close ();
if (!weh.isWave (header.wave)) {
logger.error ("Wave File %s - has wrong wave chunk id", filePath);
return 0.0f;
}
if (weh.read32 (header.dataChunkLength) == 0) {
logger.error ("Wave File %s - has zero length!", filePath);
return 0.0f;
}
const auto length = static_cast <float> (weh.read32 (header.dataChunkLength));
const auto bps = static_cast <float> (weh.read16 (header.bitsPerSample)) / 8;
const auto channels = static_cast <float> (weh.read16 (header.numChannels));
const auto rate = static_cast <float> (weh.read32 (header.sampleRate));
return length / bps / channels / rate;
}
bool Game::isDedicated () {
// return true if server is dedicated server, false otherwise
static const bool dedicated = engfuncs.pfnIsDedicatedServer () > 0;