135 lines
5.1 KiB
C
135 lines
5.1 KiB
C
/*
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* Copyright (c) 2002-2004 LWJGL Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'LWJGL' nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* $Id$
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*
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* This is the actual JNI implementation of the OpenAL EAX library.
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*
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* @author Brian Matzon <brian@matzon.dk>
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* @version $Revision$
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*/
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#include "org_lwjgl_openal_eax_EAX20.h"
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/* OpenAL includes */
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#include "checkALerror.h"
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#include "common_tools.h"
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#include "extal.h"
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#ifdef _WIN32
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// EAX 2.0 GUIDs
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static const GUID DSPROPSETID_EAX20_ListenerProperties
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= { 0x306a6a8, 0xb224, 0x11d2, { 0x99, 0xe5, 0x0, 0x0, 0xe8, 0xd8, 0xc7, 0x22 } };
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static const GUID DSPROPSETID_EAX20_BufferProperties
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= { 0x306a6a7, 0xb224, 0x11d2, {0x99, 0xe5, 0x0, 0x0, 0xe8, 0xd8, 0xc7, 0x22 } };
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#endif
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/*
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* Determines available EAX extensions
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_openal_eax_EAX20_determineAvailableExtensions (JNIEnv *env, jclass clazz) {
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#ifdef _WIN32
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bool EAXSupported = false;
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//check that we have a current context
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if(alcGetCurrentContext() == NULL) {
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throwOpenALException(env, "Unable to determine EAX Extensions: No current context");
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}
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//check for extension, and assign if available
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if(alIsExtensionPresent((ALubyte*) "EAX") == AL_TRUE) {
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eaxSet = (EAXSet)alGetProcAddress((ALubyte*) "EAXSet");
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eaxGet = (EAXGet)alGetProcAddress((ALubyte*) "EAXGet");
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EAXSupported = (eaxSet != NULL && eaxGet != NULL);
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}
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//throw exception if no EAX support
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if(EAXSupported != true) {
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throwOpenALException(env, "Unable to determine EAX Extensions");
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}
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#else
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throwOpenALException(env, "EAX extensions not supported");
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#endif
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}
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/*
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* This function retrieves an EAX value.
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*
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* C Specification:
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* ALenum EAXGet(const struct _GUID *propertySetID,ALuint property,ALuint source,ALvoid
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* *value,ALuint size);
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*/
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JNIEXPORT jint JNICALL Java_org_lwjgl_openal_eax_EAX20_neaxGet (JNIEnv *env, jclass clazz, jint propertySetID, jint property, jint source, jobject value, jint offset, jint size) {
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#ifdef _WIN32
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jint result = 0;
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// determine buffer or listener
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if (propertySetID == org_lwjgl_openal_eax_EAX20_BUFFER_GUID) {
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result = (jint) eaxGet(&DSPROPSETID_EAX20_BufferProperties, (ALuint) property, (ALuint) source, (ALvoid*) (offset + (const char*)(*env)->GetDirectBufferAddress(env, value)), (ALuint) size);
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} else if (propertySetID == org_lwjgl_openal_eax_EAX20_LISTENER_GUID) {
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result = (jint) eaxGet(&DSPROPSETID_EAX20_ListenerProperties, (ALuint) property, (ALuint) source, (ALvoid*) (offset + (const char*)(*env)->GetDirectBufferAddress(env, value)), (ALuint) size);
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}
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CHECK_AL_ERROR
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return result;
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#else
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throwOpenALException(env, "EAX extensions not supported");
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return 0;
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#endif
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}
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/*
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* This function sets an EAX value.
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*
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* C Specification:
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* ALenum EAXSet(const struct _GUID *propertySetID,ALuint property,ALuint source,ALvoid
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* *value,ALuint size);
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*/
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JNIEXPORT jint JNICALL Java_org_lwjgl_openal_eax_EAX20_neaxSet (JNIEnv *env, jclass clazz, jint propertySetID, jint property, jint source, jobject value, jint offset, jint size) {
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#ifdef _WIN32
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jint result = 0;
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// determine buffer or listener
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if (propertySetID == org_lwjgl_openal_eax_EAX20_BUFFER_GUID) {
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result = (jint) eaxSet(&DSPROPSETID_EAX20_BufferProperties, (ALuint) (property), source, (ALvoid*) (offset + (const char*)(*env)->GetDirectBufferAddress(env, value)), (ALuint) size);
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} else if (propertySetID == org_lwjgl_openal_eax_EAX20_LISTENER_GUID) {
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result = (jint) eaxSet(&DSPROPSETID_EAX20_ListenerProperties, (ALuint) (property), source, (ALvoid*) (offset + (const char*)(*env)->GetDirectBufferAddress(env, value)), (ALuint) size);
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}
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CHECK_AL_ERROR
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return result;
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#else
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throwOpenALException(env, "EAX extensions not supported");
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return 0;
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#endif
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}
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