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/*
* Copyright (c) 2002 Light Weight Java Game Library Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of 'Light Weight Java Game Library' nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* $Id$
*
* @author elias_naur <elias_naur@users.sourceforge.net>
* @version $Revision$
*/
#include "common_tools.h"
static void incListStart(event_queue_t *queue) {
queue->list_start = (queue->list_start + 1)%EVENT_BUFFER_SIZE;
}
void initEventQueue(event_queue_t *event_queue) {
event_queue->list_start = 0;
event_queue->list_end = 0;
}
void putEventElement(event_queue_t *queue, unsigned char byte) {
int next_index = (queue->list_end + 1)%EVENT_BUFFER_SIZE;
if (next_index == queue->list_start) {
#ifdef _DEBUG
printf("Event buffer overflow!\n");
#endif
return;
}
queue->input_event_buffer[queue->list_end] = byte;
queue->list_end = next_index;
}
static int hasMoreEvents(event_queue_t *queue) {
return queue->list_start != queue->list_end;
}
static void copyEvent(event_queue_t *queue, int event_size, int event_index) {
int output_index = event_index*event_size;
int i;
for (i = 0; i < event_size; i++) {
queue->output_event_buffer[output_index] = queue->input_event_buffer[queue->list_start];
incListStart(queue);
output_index++;
}
}
int copyEvents(event_queue_t *event_queue, int event_size) {
int num_events = 0;
while (hasMoreEvents(event_queue)) {
copyEvent(event_queue, event_size, num_events);
num_events++;
}
return num_events;
}
unsigned char *getOutputList(event_queue_t *queue) {
return queue->output_event_buffer;
}
int getEventBufferSize(event_queue_t *event_queue) {
return EVENT_BUFFER_SIZE;
}
static void throwGeneralException(JNIEnv * env, const char *exception_name, const char * err) {
jclass cls = (*env)->FindClass(env,exception_name);
(*env)->ThrowNew(env,cls, err);
(*env)->DeleteLocalRef(env,cls);
}
void throwOpenALException(JNIEnv * env, const char * err) {
throwGeneralException(env, "net/java/games/joal/OpenALException", err);
}
void throwException(JNIEnv * env, const char * err) {
throwGeneralException(env, "java/lang/Exception", err);
}
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