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Diffstat (limited to 'examples/alhelpers.h')
| -rw-r--r-- | examples/alhelpers.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/examples/alhelpers.h b/examples/alhelpers.h new file mode 100644 index 00000000..5559ea6f --- /dev/null +++ b/examples/alhelpers.h @@ -0,0 +1,95 @@ +#ifndef ALHELPERS_H +#define ALHELPERS_H + +#ifndef _WIN32 +#include <unistd.h> +#define Sleep(x) usleep((x)*1000) +#else +#define WIN32_LEAN_AND_MEAN +#include <windows.h> +#endif + +#ifdef __cplusplus +extern "C" { +#endif /* __cplusplus */ + +#ifndef AL_SOFT_buffer_samples +#define AL_SOFT_buffer_samples 1 +/* Sample types */ +#define AL_BYTE 0x1400 +#define AL_UNSIGNED_BYTE 0x1401 +#define AL_SHORT 0x1402 +#define AL_UNSIGNED_SHORT 0x1403 +#define AL_INT 0x1404 +#define AL_UNSIGNED_INT 0x1405 +#define AL_FLOAT 0x1406 +#define AL_DOUBLE 0x1407 +#define AL_BYTE3 0x1408 +#define AL_UNSIGNED_BYTE3 0x1409 + +/* Channel configurations */ +#define AL_MONO 0x1500 +#define AL_STEREO 0x1501 +#define AL_REAR 0x1502 +#define AL_QUAD 0x1503 +#define AL_5POINT1 0x1504 +#define AL_6POINT1 0x1505 +#define AL_7POINT1 0x1506 + +/* Storage formats */ +#define AL_MONO8 0x1100 +#define AL_MONO16 0x1101 +#define AL_MONO32F 0x10010 +#define AL_STEREO8 0x1102 +#define AL_STEREO16 0x1103 +#define AL_STEREO32F 0x10011 +#define AL_QUAD8 0x1204 +#define AL_QUAD16 0x1205 +#define AL_QUAD32F 0x1206 +#define AL_REAR8 0x1207 +#define AL_REAR16 0x1208 +#define AL_REAR32F 0x1209 +#define AL_5POINT1_8 0x120A +#define AL_5POINT1_16 0x120B +#define AL_5POINT1_32F 0x120C +#define AL_6POINT1_8 0x120D +#define AL_6POINT1_16 0x120E +#define AL_6POINT1_32F 0x120F +#define AL_7POINT1_8 0x1210 +#define AL_7POINT1_16 0x1211 +#define AL_7POINT1_32F 0x1212 + +/* Buffer attributes */ +#define AL_INTERNAL_FORMAT 0x2008 +#define AL_BYTE_LENGTH 0x2009 +#define AL_SAMPLE_LENGTH 0x200A +#define AL_SEC_LENGTH 0x200B + +typedef void (AL_APIENTRY*LPALBUFFERSAMPLESSOFT)(ALuint,ALuint,ALenum,ALsizei,ALenum,ALenum,const ALvoid*); +typedef void (AL_APIENTRY*LPALBUFFERSUBSAMPLESSOFT)(ALuint,ALsizei,ALsizei,ALenum,ALenum,const ALvoid*); +typedef void (AL_APIENTRY*LPALGETBUFFERSAMPLESSOFT)(ALuint,ALsizei,ALsizei,ALenum,ALenum,ALvoid*); +typedef ALboolean (AL_APIENTRY*LPALISBUFFERFORMATSUPPORTEDSOFT)(ALenum); +#endif + + +/* Some helper functions to get the name from the channel and type enums. */ +const char *ChannelsName(ALenum chans); +const char *TypeName(ALenum type); + +/* Helpers to convert frame counts and byte lengths. */ +ALsizei FramesToBytes(ALsizei size, ALenum channels, ALenum type); +ALsizei BytesToFrames(ALsizei size, ALenum channels, ALenum type); + +/* Retrieves a compatible buffer format given the channel configuration and + * sample type. Returns 0 if no supported format can be found. */ +ALenum GetFormat(ALenum channels, ALenum type); + +/* Easy device init/deinit functions. InitAL returns 0 on success. */ +int InitAL(void); +void CloseAL(void); + +#ifdef __cplusplus +} +#endif /* __cplusplus */ + +#endif /* ALHELPERS_H */ |