2002-08-15 11:46:18 -04:00
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/*
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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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2002-08-11 07:49:32 -04:00
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*
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2002-08-15 11:46:18 -04:00
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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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2002-08-11 07:49:32 -04:00
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*
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2002-08-15 11:46:18 -04:00
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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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2002-08-11 07:49:32 -04:00
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*
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2002-08-15 11:46:18 -04:00
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* Win32 system library.
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2002-08-11 07:49:32 -04:00
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*
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2002-08-15 11:46:18 -04:00
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* @author cix_foo <cix_foo@users.sourceforge.net>
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* @version $Revision$
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2002-08-11 07:49:32 -04:00
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*/
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#include <windows.h>
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#include "org_lwjgl_Sys.h"
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__int64 hires_timer_freq; // Hires timer frequency
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__int64 hires_timer_start; // Hires timer start
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__int64 hires_timer; // Hires timer current time
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/*
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* Class: org_lwjgl_Sys
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* Method: getDirectBufferAddress
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* Signature: (Ljava/nio/Buffer;)I
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*/
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JNIEXPORT jint JNICALL Java_org_lwjgl_Sys_getDirectBufferAddress
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(JNIEnv * env, jclass clazz, jobject buf)
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{
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return (jint) env->GetDirectBufferAddress(buf);
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}
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/*
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* Class: org_lwjgl_Sys
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* Method: createDirectBuffer
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* Signature: (II)Ljava/nio/ByteBuffer;
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*/
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JNIEXPORT jobject JNICALL Java_org_lwjgl_Sys_createDirectBuffer
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(JNIEnv * env, jclass clazz, jint address, jint length)
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{
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return env->NewDirectByteBuffer((void *)address, length);
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}
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/*
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* Class: org_lwjgl_Sys
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* Method: getTimerResolution
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* Signature: ()J
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*/
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JNIEXPORT jlong JNICALL Java_org_lwjgl_Sys_getTimerResolution
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(JNIEnv * env, jclass clazz)
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{
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return hires_timer_freq;
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}
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/*
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* Class: org_lwjgl_Sys
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* Method: getTime
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* Signature: ()J
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*/
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JNIEXPORT jlong JNICALL Java_org_lwjgl_Sys_getTime
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(JNIEnv * env, jclass clazz)
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{
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QueryPerformanceCounter((LARGE_INTEGER*) &hires_timer);
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hires_timer -= hires_timer_start;
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return hires_timer;
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}
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/*
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* Class: org_lwjgl_Sys
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* Method: setTime
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* Signature: (J)V
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_Sys_setTime
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(JNIEnv * env, jclass clazz, jlong startTime)
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{
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QueryPerformanceFrequency((LARGE_INTEGER*) &hires_timer_freq);
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QueryPerformanceCounter((LARGE_INTEGER*) &hires_timer_start);
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hires_timer_start -= startTime;
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}
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/*
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* Class: org_lwjgl_Sys
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* Method: setProcessPriority
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* Signature: (I)V
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*/
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JNIEXPORT void JNICALL Java_org_lwjgl_Sys_setProcessPriority
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(JNIEnv * env, jclass clazz, jint priority)
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{
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HANDLE me = GetCurrentProcess();
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int win32priority;
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switch (priority) {
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case org_lwjgl_Sys_REALTIME_PRIORITY:
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win32priority = REALTIME_PRIORITY_CLASS;
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break;
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case org_lwjgl_Sys_HIGH_PRIORITY:
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win32priority = HIGH_PRIORITY_CLASS;
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break;
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case org_lwjgl_Sys_NORMAL_PRIORITY:
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win32priority = NORMAL_PRIORITY_CLASS;
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break;
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case org_lwjgl_Sys_LOW_PRIORITY:
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win32priority = IDLE_PRIORITY_CLASS;
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break;
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default:
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return;
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}
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if (!SetPriorityClass(me, win32priority)) {
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#ifdef _DEBUG
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printf("Failed to set priority class.\n");
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#endif
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}
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}
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