dynamic.c File Reference

#include "shared/shared.h"
#include "system/system.h"
#include "common/cvar.h"
#include "common/common.h"
#include "common/files.h"
#include "dynamic.h"
#include <AL/alc.h>

Go to the source code of this file.

Macros
#define	QALC_IMP
#define	QAL(type, func)   static type q##func
#define	QAL(type, func)   type q##func
#define	QAL(type, func)   q##func = NULL
#define	QAL(type, func)   if ((q##func = Sys_GetProcAddress(handle, #func)) == NULL) goto fail;

Functions
QAL_IMP void	QAL_Shutdown (void)
qboolean	QAL_Init (void)

Variables
static cvar_t *	al_driver
static cvar_t *	al_device
static void *	handle
static ALCdevice *	device
static ALCcontext *	context

Macro Definition Documentation

QAL [1/4]

#define QAL	(		type,
			func
	)		static type q##func

Definition at line 60 of file dynamic.c.

QAL [2/4]

#define QAL	(		type,
			func
	)		type q##func

Definition at line 60 of file dynamic.c.

QAL [3/4]

#define QAL	(		type,
			func
	)		q##func = NULL

Definition at line 60 of file dynamic.c.

QAL [4/4]

#define QAL	(		type,
			func
	)		if ((q##func = Sys_GetProcAddress(handle, #func)) == NULL) goto fail;

Definition at line 60 of file dynamic.c.

QALC_IMP

#define QALC_IMP

Value:

    QAL(LPALCCREATECONTEXT, alcCreateContext); \
    QAL(LPALCMAKECONTEXTCURRENT, alcMakeContextCurrent); \
    QAL(LPALCPROCESSCONTEXT, alcProcessContext); \
    QAL(LPALCSUSPENDCONTEXT, alcSuspendContext); \
    QAL(LPALCDESTROYCONTEXT, alcDestroyContext); \
    QAL(LPALCGETCURRENTCONTEXT, alcGetCurrentContext); \
    QAL(LPALCGETCONTEXTSDEVICE, alcGetContextsDevice); \
    QAL(LPALCOPENDEVICE, alcOpenDevice); \
    QAL(LPALCCLOSEDEVICE, alcCloseDevice); \
    QAL(LPALCGETERROR, alcGetError); \
    QAL(LPALCISEXTENSIONPRESENT, alcIsExtensionPresent); \
    QAL(LPALCGETPROCADDRESS, alcGetProcAddress); \
    QAL(LPALCGETENUMVALUE, alcGetEnumValue); \
    QAL(LPALCGETSTRING, alcGetString); \
    QAL(LPALCGETINTEGERV, alcGetIntegerv); \
    QAL(LPALCCAPTUREOPENDEVICE, alcCaptureOpenDevice); \
    QAL(LPALCCAPTURECLOSEDEVICE, alcCaptureCloseDevice); \
    QAL(LPALCCAPTURESTART, alcCaptureStart); \
    QAL(LPALCCAPTURESTOP, alcCaptureStop); \
    QAL(LPALCCAPTURESAMPLES, alcCaptureSamples);

Definition at line 27 of file dynamic.c.

Function Documentation

QAL_Init()

qboolean QAL_Init

(

void

)

Definition at line 92 of file dynamic.c.

{
    al_driver = Cvar_Get("al_driver", LIBAL, 0);
    al_device = Cvar_Get("al_device", "", 0);
 
    // don't allow absolute or relative paths
    FS_SanitizeFilenameVariable(al_driver);
 
    Sys_LoadLibrary(al_driver->string, NULL, &handle);
    if (!handle) {
        return qfalse;
    }
 
#define QAL(type, func)  if ((q##func = Sys_GetProcAddress(handle, #func)) == NULL) goto fail;
    QALC_IMP
    QAL_IMP
#undef QAL
 
    device = qalcOpenDevice(al_device->string[0] ? al_device->string : NULL);
    if (!device) {
        Com_SetLastError(va("alcOpenDevice(%s) failed", al_device->string));
        goto fail;
    }
 
    context = qalcCreateContext(device, NULL);
    if (!context) {
        Com_SetLastError("alcCreateContext failed");
        goto fail;
    }
 
    if (!qalcMakeContextCurrent(context)) {
        Com_SetLastError("alcMakeContextCurrent failed");
        goto fail;
    }
 
    al_driver->flags |= CVAR_SOUND;
    al_device->flags |= CVAR_SOUND;
 
    return qtrue;
 
fail:
    QAL_Shutdown();
    return qfalse;
}

Referenced by AL_Init().

QAL_Shutdown()

QAL_IMP void QAL_Shutdown

(

void

)

Definition at line 64 of file dynamic.c.

{
    if (context) {
        qalcMakeContextCurrent(NULL);
        qalcDestroyContext(context);
        context = NULL;
    }
    if (device) {
        qalcCloseDevice(device);
        device = NULL;
    }
 
#define QAL(type, func)  q##func = NULL
    QALC_IMP
    QAL_IMP
#undef QAL
 
    if (handle) {
        Sys_FreeLibrary(handle);
        handle = NULL;
    }
 
    if (al_driver)
        al_driver->flags &= ~CVAR_SOUND;
    if (al_device)
        al_device->flags &= ~CVAR_SOUND;
}

Referenced by AL_Init(), AL_Shutdown(), and QAL_Init().

Variable Documentation

al_device

cvar_t* al_device

static

Definition at line 50 of file dynamic.c.

Referenced by QAL_Init(), and QAL_Shutdown().

al_driver

cvar_t* al_driver

static

Definition at line 49 of file dynamic.c.

Referenced by QAL_Init(), and QAL_Shutdown().

context

ALCcontext* context

static

Definition at line 54 of file dynamic.c.

Referenced by QAL_Init(), QAL_Shutdown(), stbi_write(), and Sys_ExceptionFilter().

device

ALCdevice* device

static

Definition at line 53 of file dynamic.c.

Referenced by create_device_memory_allocator(), QAL_Init(), and QAL_Shutdown().

handle

void* handle

static

Definition at line 52 of file dynamic.c.

Referenced by FindNextFileA(), FS_FOpenFile(), QAL_Init(), QAL_Shutdown(), R_UnregisterImage(), raw_input_event(), S_ParseStartSound(), Sys_FreeLibrary(), Sys_GetProcAddress(), Sys_ListFiles_r(), and Sys_LoadLibrary().