stiffly
117 lines
3.5 KiB
C++
117 lines
3.5 KiB
C++
#ifndef Sound_h__
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#define Sound_h__
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#include <OpenAL/al.h>
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#include <OpenAL/alc.h>
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#include "Core/ResourceManager.h"
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class Sound : public Resource
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{
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friend class ResourceManager;
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public:
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Sound(std::string path) { m_Buffer = LoadFile(path); m_Path = path; }
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~Sound() { ClearBuffer(); }
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ALuint Buffer() { return m_Buffer; }
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std::string Path() { return m_Path; }
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float Gain() { return m_Gain; }
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void SetGain(float value) { m_Gain = value; }
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void ClearBuffer() { alDeleteBuffers(1, &m_Buffer); m_BufferCache.clear(); };
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private:
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float m_Gain = 1;
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ALuint m_Buffer;
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std::string m_Path;
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// File info
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char m_Type[4];
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unsigned long m_Size, m_ChunkSize;
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short m_FormatType, m_Channels;
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unsigned long m_SampleRate, m_AvgBytesPerSec;
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short m_BytesPerSample, m_BitsPerSample;
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unsigned int m_DataSize;
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std::map<std::string, ALuint> m_BufferCache;
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ALuint LoadFile(std::string path)
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{
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if (m_BufferCache.find(path) != m_BufferCache.end()) {
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return m_BufferCache[path];
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}
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// Open file
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FILE *fp = fopen(path.c_str(), "rb");
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if (!fp) {
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printf("Sound: Failed to open file %s, no such file exists", path.c_str());
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return 0;
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}
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//CHECK FOR VALID WAVE-FILE
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fread(m_Type, sizeof(char), 4, fp);
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if (m_Type[0] != 'R' || m_Type[1] != 'I' || m_Type[2] != 'F' || m_Type[3] != 'F') {
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printf("ERROR: No RIFF in WAVE-file");
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return 0;
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}
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fread(&m_Size, 4 * sizeof(char), 1, fp);
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fread(m_Type, sizeof(char), 4, fp);
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if (m_Type[0] != 'W' || m_Type[1] != 'A' || m_Type[2] != 'V' || m_Type[3] != 'E') {
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printf("ERROR: Not WAVE-file");
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return 0;
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}
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fread(m_Type, sizeof(char), 4, fp);
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if (m_Type[0] != 'f' || m_Type[1] != 'm' || m_Type[2] != 't' || m_Type[3] != ' ') {
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printf("ERROR: No fmt in WAVE-file");
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return 0;
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}
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// READ THE DATA FROM WAVE-FILE
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fread(&m_ChunkSize, 4 * sizeof(char), 1, fp);
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fread(&m_FormatType, 2 * sizeof(char), 1, fp);
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fread(&m_Channels, 2 * sizeof(char), 1, fp);
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fread(&m_SampleRate, 4 * sizeof(char), 1, fp);
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fread(&m_AvgBytesPerSec, 4 * sizeof(char), 1, fp);
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fread(&m_BytesPerSample, 2 * sizeof(char), 1, fp);
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fread(&m_BitsPerSample, 2 * sizeof(char), 1, fp);
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fread(m_Type, sizeof(char), 4, fp);
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if (m_Type[0] != 'd' || m_Type[1] != 'a' || m_Type[2] != 't' || m_Type[3] != 'a') {
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printf("ERROR: WAVE-file Missing data");
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return 0;
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}
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fread(&m_DataSize, 4 * sizeof(char), 1, fp);
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unsigned char* buf = new unsigned char[m_DataSize];
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fread(buf, sizeof(char), m_DataSize, fp);
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fclose(fp);
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// Create buffer
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ALuint format = 0;
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if (m_BitsPerSample == 8) {
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if (m_Channels == 1) {
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format = AL_FORMAT_MONO8;
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} else if (m_Channels == 2) {
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format = AL_FORMAT_STEREO8;
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}
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}
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if (m_BitsPerSample == 16) {
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if (m_Channels == 1) {
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format = AL_FORMAT_MONO16;
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} else if (m_Channels == 2) {
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format = AL_FORMAT_STEREO16;
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}
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}
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ALuint buffer;
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alGenBuffers(1, &buffer);
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alBufferData(buffer, format, buf, m_DataSize, m_SampleRate);
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delete[] buf;
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m_BufferCache[path] = buffer;
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return buffer;
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}
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};
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#endif
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