382 lines
12 KiB
C++
382 lines
12 KiB
C++
/*
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* Copyright (c) 2002 Light Weight Java Game Library 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 'Light Weight Java Game Library' 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 context/device library.
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*
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* @author elias_naur <elias_naur@matzon.dk>
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* @version $Revision$
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*/
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#include "org_lwjgl_openal_ALC.h"
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#include "checkALerror.h"
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/* OpenAL includes */
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#include <AL/alc.h>
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/*
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* Class: org_lwjgl_openal_ALC
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* Method: nCreate
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* Signature: ()Z
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*/
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JNIEXPORT jboolean JNICALL Java_org_lwjgl_openal_ALC_nCreate (JNIEnv *env, jobject obj) {
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return true;
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}
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/*
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* Class: org_lwjgl_openal_ALC
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* Method: nDestroy
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* Signature: ()V
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_openal_ALC_nDestroy (JNIEnv *env, jobject obj) {
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}
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/**
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* This function returns strings related to the context.
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*
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* C Specification:
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* ALubyte * alcGetString(ALCdevice *device, ALenum token);
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*/
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JNIEXPORT jstring JNICALL Java_org_lwjgl_openal_ALC_getString (JNIEnv *env, jobject obj, jobject device, jint token) {
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jclass class_device = env->GetObjectClass(device);
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jfieldID field_device = env->GetFieldID(class_device, "device", "I");
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jint deviceaddress = env->GetIntField(device, field_device);
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const char* alcString = (const char*) alcGetString((ALCdevice*) deviceaddress, (ALenum) token);
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if(alcString == NULL) {
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return NULL;
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}
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jstring string = env->NewStringUTF(alcString);
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CHECK_ALC_ERROR
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return string;
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}
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/**
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* This function returns integers related to the context.
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*
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* C Specification:
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* ALvoid alcGetIntegerv(ALCdevice *device, ALenum token, ALsizei size, ALint *dest);
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_openal_ALC_getIntegerv (JNIEnv *env, jobject obj, jobject device, jint token, jint size, jint dest) {
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jclass device_class = env->GetObjectClass(device);
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jfieldID device_field = env->GetFieldID(device_class, "device", "I");
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jint deviceaddress = env->GetIntField(device, device_field);
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alcGetIntegerv((ALCdevice*) deviceaddress, (ALenum) token, (ALsizei) size, (ALint*) dest);
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CHECK_ALC_ERROR
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}
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/**
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* This function opens a device by name.
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*
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* C Specification:
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* ALCdevice *alcOpenDevice( const ALubyte *tokstr );
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*/
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JNIEXPORT jobject JNICALL Java_org_lwjgl_openal_ALC_openDevice (JNIEnv *env, jobject obj, jstring tokstr) {
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ALubyte* tokenstring;
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if(tokstr != NULL) {
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tokenstring = (ALubyte*) (env->GetStringUTFChars(tokstr, 0));
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} else {
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tokenstring = NULL;
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}
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/* get device */
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ALCdevice* device = alcOpenDevice(tokenstring);
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/* if error - cleanup and get out */
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if(device == NULL) {
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if(tokenstring != NULL) {
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env->ReleaseStringUTFChars((jstring)tokenstring, 0);
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}
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return NULL;
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}
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/* get ready to create ALCdevice instance */
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jobject alcDevice_object = NULL;
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jclass alcDevice_class = NULL;
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jmethodID alcDevice_method = NULL;
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/* find class and constructor */
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alcDevice_class = env->FindClass("org/lwjgl/openal/ALCdevice");
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alcDevice_method = env->GetMethodID(alcDevice_class, "<init>", "(I)V");
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/* create instance */
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alcDevice_object = env->NewObject(alcDevice_class, alcDevice_method, (int) device);
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/* clean up */
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env->ReleaseStringUTFChars((jstring)tokenstring, 0);
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return alcDevice_object;
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}
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/**
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* This function closes a device by name.
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*
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* C Specification:
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* void alcCloseDevice( ALCdevice *dev );
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_openal_ALC_closeDevice (JNIEnv *env, jobject obj, jobject device) {
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jclass device_class = env->GetObjectClass(device);
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jfieldID device_field = env->GetFieldID(device_class, "device", "I");
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jint deviceaddress = env->GetIntField(device, device_field);
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alcCloseDevice((ALCdevice*) deviceaddress);
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CHECK_ALC_ERROR
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}
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/**
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* This function creates a context using a specified device.
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*
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* C Specification:
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* ALCcontext* alcCreateContext( ALCdevice *dev, ALint* attrlist );
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*/
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JNIEXPORT jobject JNICALL Java_org_lwjgl_openal_ALC_createContext (JNIEnv *env, jobject obj, jobject device, jint attrlist) {
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/* get device address */
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jclass device_class = env->GetObjectClass(device);
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jfieldID device_field = env->GetFieldID(device_class, "device", "I");
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jint deviceaddress = env->GetIntField(device, device_field);
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ALCcontext* context = alcCreateContext((ALCdevice*) deviceaddress, (ALint*) attrlist);
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/* if error - get out */
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if(context == NULL) {
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return NULL;
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}
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/* get ready to create ALCcontext instance */
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jobject alcContext_object = NULL;
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jclass alcContext_class = NULL;
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jmethodID alcContext_method = NULL;
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/* find class and constructor */
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alcContext_class = env->FindClass("org/lwjgl/openal/ALCcontext");
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alcContext_method = env->GetMethodID(alcContext_class, "<init>", "(I)V");
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/* create instance */
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alcContext_object = env->NewObject(alcContext_class, alcContext_method, (int) context);
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CHECK_ALC_ERROR
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return alcContext_object;
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}
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/**
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* This function makes a specified context the current context.
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*
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* C Specification:
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* ALCboolean alcMakeContextCurrent(ALCcontext *context);
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*/
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JNIEXPORT jboolean JNICALL Java_org_lwjgl_openal_ALC_makeContextCurrent (JNIEnv *env, jobject obj, jobject context) {
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if(context == NULL) {
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return alcMakeContextCurrent(NULL);
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}
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/* get context address */
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jclass context_class = env->GetObjectClass(context);
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jfieldID context_field = env->GetFieldID(context_class, "context", "I");
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jint contextaddress = env->GetIntField(context, context_field);
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return alcMakeContextCurrent((ALCcontext*) contextaddress);
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}
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/**
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* This function tells a context to begin processing.
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*
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* C Specification:
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* void alcProcessContext(ALCcontext *context);
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_openal_ALC_processContext (JNIEnv *env, jobject obj, jobject context) {
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/* get context address */
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jclass context_class = env->GetObjectClass(context);
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jfieldID context_field = env->GetFieldID(context_class, "context", "I");
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jint contextaddress = env->GetIntField(context, context_field);
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alcProcessContext((ALCcontext*) contextaddress);
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}
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/**
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* This function retrieves the current context.
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*
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* C Specification:
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* ALCcontext* alcGetCurrentContext( ALvoid );
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*/
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JNIEXPORT jobject JNICALL Java_org_lwjgl_openal_ALC_getCurrentContext (JNIEnv *env, jobject obj) {
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ALCcontext* context = alcGetCurrentContext();
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if(context == NULL) {
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return NULL;
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}
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/* get ready to create ALCcontext instance */
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jobject alcContext_object = NULL;
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jclass alcContext_class = NULL;
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jmethodID alcContext_method = NULL;
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/* find class and constructor */
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alcContext_class = env->FindClass("org/lwjgl/openal/ALCcontext");
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alcContext_method = env->GetMethodID(alcContext_class, "<init>", "(I)V");
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/* create instance */
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alcContext_object = env->NewObject(alcContext_class, alcContext_method, (int) context);
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return alcContext_object;
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}
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/**
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* This function retrieves the specified contexts device
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*
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* C Specification:
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* ALCdevice* alcGetContextsDevice(ALCcontext *context);
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*/
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JNIEXPORT jobject JNICALL Java_org_lwjgl_openal_ALC_getContextsDevice (JNIEnv *env, jobject obj, jobject context) {
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/* get context address */
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jclass context_class = env->GetObjectClass(context);
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jfieldID context_field = env->GetFieldID(context_class, "context", "I");
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jint contextaddress = env->GetIntField(context, context_field);
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ALCdevice* device = alcGetContextsDevice((ALCcontext*) contextaddress);
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if(device == NULL) {
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return NULL;
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}
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/* get ready to create ALCdevice instance */
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jobject alcDevice_object = NULL;
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jclass alcDevice_class = NULL;
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jmethodID alcDevice_method = NULL;
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/* find class and constructor */
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alcDevice_class = env->FindClass("org/lwjgl/openal/ALCdevice");
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alcDevice_method = env->GetMethodID(alcDevice_class, "<init>", "(I)V");
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/* create instance */
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alcDevice_object = env->NewObject(alcDevice_class, alcDevice_method, (int) device);
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return alcDevice_object;
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}
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/**
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* This function suspends processing on a specified context.
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*
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* C Specification:
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* void alcSuspendContext(ALCcontext *context);
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_openal_ALC_suspendContext (JNIEnv *env, jobject obj, jobject context) {
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/* get context address */
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jclass context_class = env->GetObjectClass(context);
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jfieldID context_field = env->GetFieldID(context_class, "context", "I");
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jint contextaddress = env->GetIntField(context, context_field);
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alcSuspendContext((ALCcontext*) contextaddress);
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}
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/**
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* This function destroys a context.
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*
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* C Specification:
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* void alcDestroyContext(ALCcontext *context);
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_openal_ALC_destroyContext (JNIEnv *env, jobject obj, jobject context) {
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/* get context address */
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jclass context_class = env->GetObjectClass(context);
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jfieldID context_field = env->GetFieldID(context_class, "context", "I");
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jint contextaddress = env->GetIntField(context, context_field);
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alcDestroyContext((ALCcontext*) contextaddress);
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}
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/**
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* This function retrieves the specified devices context error state.
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*
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* C Specification:
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* ALCenum alcGetError(ALCdevice *device);
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*/
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JNIEXPORT jint JNICALL Java_org_lwjgl_openal_ALC_getError (JNIEnv *env, jobject obj, jobject device) {
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/* get device address */
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jclass device_class = env->GetObjectClass(device);
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jfieldID device_field = env->GetFieldID(device_class, "device", "I");
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jint deviceaddress = env->GetIntField(device, device_field);
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jint result = alcGetError((ALCdevice*) deviceaddress);
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CHECK_ALC_ERROR
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return result;
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}
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/**
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* This function queries if a specified context extension is available.
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*
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* C Specification:
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* ALboolean alcIsExtensionPresent(ALCdevice *device, ALubyte *extName);
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*/
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JNIEXPORT jboolean JNICALL Java_org_lwjgl_openal_ALC_isExtensionPresent (JNIEnv *env, jobject obj, jobject device, jstring extName) {
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/* get device address */
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jclass device_class = env->GetObjectClass(device);
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jfieldID device_field = env->GetFieldID(device_class, "device", "I");
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jint deviceaddress = env->GetIntField(device, device_field);
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/* get extension */
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ALubyte* functionname = (ALubyte*) (env->GetStringUTFChars(extName, 0));
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jboolean result = (jboolean) alcIsExtensionPresent((ALCdevice*) deviceaddress, functionname);
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env->ReleaseStringUTFChars((jstring)functionname, 0);
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CHECK_ALC_ERROR
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return result;
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}
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/**
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* This function retrieves the enum value for a specified enumeration name.
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*
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* C Specification:
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* ALenum alcGetEnumValue(ALCdevice *device, ALubyte *enumName);
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*/
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JNIEXPORT jint JNICALL Java_org_lwjgl_openal_ALC_getEnumValue (JNIEnv *env, jobject obj, jobject device, jstring enumName) {
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/* get device address */
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jclass device_class = env->GetObjectClass(device);
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jfieldID device_field = env->GetFieldID(device_class, "device", "I");
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jint deviceaddress = env->GetIntField(device, device_field);
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/* get extension */
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ALubyte* enumerationname = (ALubyte*) (env->GetStringUTFChars(enumName, 0));
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jint result = (jint) alcGetEnumValue((ALCdevice*) deviceaddress, enumerationname);
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env->ReleaseStringUTFChars((jstring)enumerationname, 0);
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CHECK_ALC_ERROR
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return result;
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}
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