100 lines
3.4 KiB
C
100 lines
3.4 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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* @author elias_naur <elias_naur@users.sourceforge.net>
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* @version $Revision$
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*/
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#include <jni.h>
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#include <jawt.h>
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#include <unistd.h>
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#include "org_lwjgl_opengl_AWTSurfaceLock.h"
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#include "awt_tools.h"
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#include "common_tools.h"
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#define WAIT_DELAY 100
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JNIEXPORT void JNICALL Java_org_lwjgl_opengl_AWTSurfaceLock_lockAndInitHandle
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(JNIEnv *env, jclass clazz, jobject lock_buffer_handle, jobject canvas) {
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if ((*env)->GetDirectBufferCapacity(env, lock_buffer_handle) < sizeof(AWTSurfaceLock)) {
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throwException(env, "Lock handle buffer not large enough");
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return;
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}
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AWTSurfaceLock *awt_lock = (AWTSurfaceLock *)(*env)->GetDirectBufferAddress(env, lock_buffer_handle);
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JAWT awt;
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JAWT_DrawingSurface* ds;
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JAWT_DrawingSurfaceInfo *dsi;
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awt.version = JAWT_VERSION_1_4;
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while (true) {
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if (JAWT_GetAWT(env, &awt) == JNI_FALSE) {
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throwException(env, "Could not get the JAWT interface");
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return;
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}
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ds = awt.GetDrawingSurface(env, canvas);
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if (ds == NULL) {
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throwException(env, "Could not get the drawing surface");
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return;
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}
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if((ds->Lock(ds) & JAWT_LOCK_ERROR) != 0) {
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awt.FreeDrawingSurface(ds);
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throwException(env, "Could not lock the drawing surface");
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return;
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}
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dsi = ds->GetDrawingSurfaceInfo(ds);
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if (dsi != NULL)
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break;
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printfDebug("Could not get drawing surface info, retrying... \n");
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ds->Unlock(ds);
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awt.FreeDrawingSurface(ds);
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usleep(WAIT_DELAY);
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}
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awt_lock->awt = awt;
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awt_lock->ds = ds;
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awt_lock->dsi = dsi;
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}
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JNIEXPORT void JNICALL Java_org_lwjgl_opengl_AWTSurfaceLock_nUnlock
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(JNIEnv *env, jclass clazz, jobject lock_buffer_handle) {
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AWTSurfaceLock *awt_lock = (AWTSurfaceLock *)(*env)->GetDirectBufferAddress(env, lock_buffer_handle);
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awt_lock->ds->FreeDrawingSurfaceInfo(awt_lock->dsi);
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awt_lock->ds->Unlock(awt_lock->ds);
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awt_lock->awt.FreeDrawingSurface(awt_lock->ds);
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}
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