1 /*
2  * Copyright (c) 2002-2008 LWJGL Project
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are
7  * met:
8  *
9  * * Redistributions of source code must retain the above copyright
10  *   notice, this list of conditions and the following disclaimer.
11  *
12  * * Redistributions in binary form must reproduce the above copyright
13  *   notice, this list of conditions and the following disclaimer in the
14  *   documentation and/or other materials provided with the distribution.
15  *
16  * * Neither the name of 'LWJGL' nor the names of
17  *   its contributors may be used to endorse or promote products derived
18  *   from this software without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 package org.lwjgl.opengl;
33 
34 import org.lwjgl.LWJGLException;
35 import org.lwjgl.LWJGLUtil;
36 
37 import java.nio.ByteBuffer;
38 import java.nio.IntBuffer;
39 
40 /**
41  * @author elias_naur <elias_naur@users.sourceforge.net>
42  * @version $Revision$
43  *          $Id$
44  */
45 final class WindowsContextImplementation implements ContextImplementation {
46 
create(PeerInfo peer_info, IntBuffer attribs, ByteBuffer shared_context_handle)47 	public ByteBuffer create(PeerInfo peer_info, IntBuffer attribs, ByteBuffer shared_context_handle) throws LWJGLException {
48 		ByteBuffer peer_handle = peer_info.lockAndGetHandle();
49 		try {
50 			return nCreate(peer_handle, attribs, shared_context_handle);
51 		} finally {
52 			peer_info.unlock();
53 		}
54 	}
55 
nCreate(ByteBuffer peer_handle, IntBuffer attribs_handle, ByteBuffer shared_context_handle)56 	private static native ByteBuffer nCreate(ByteBuffer peer_handle, IntBuffer attribs_handle, ByteBuffer shared_context_handle) throws LWJGLException;
57 
getHGLRC(ByteBuffer context_handle)58 	native long getHGLRC(ByteBuffer context_handle);
59 
getHDC(ByteBuffer peer_info_handle)60 	native long getHDC(ByteBuffer peer_info_handle);
61 
swapBuffers()62 	public void swapBuffers() throws LWJGLException {
63 		ContextGL current_context = ContextGL.getCurrentContext();
64 		if ( current_context == null )
65 			throw new IllegalStateException("No context is current");
66 		synchronized ( current_context ) {
67 			PeerInfo current_peer_info = current_context.getPeerInfo();
68 			ByteBuffer peer_handle = current_peer_info.lockAndGetHandle();
69 			try {
70 				nSwapBuffers(peer_handle);
71 			} finally {
72 				current_peer_info.unlock();
73 			}
74 		}
75 	}
76 
nSwapBuffers(ByteBuffer peer_info_handle)77 	private static native void nSwapBuffers(ByteBuffer peer_info_handle) throws LWJGLException;
78 
releaseDrawable(ByteBuffer context_handle)79 	public void releaseDrawable(ByteBuffer context_handle) throws LWJGLException {
80 	}
81 
update(ByteBuffer context_handle)82 	public void update(ByteBuffer context_handle) {
83 	}
84 
releaseCurrentContext()85 	public void releaseCurrentContext() throws LWJGLException {
86 		nReleaseCurrentContext();
87 	}
88 
nReleaseCurrentContext()89 	private static native void nReleaseCurrentContext() throws LWJGLException;
90 
makeCurrent(PeerInfo peer_info, ByteBuffer handle)91 	public void makeCurrent(PeerInfo peer_info, ByteBuffer handle) throws LWJGLException {
92 		ByteBuffer peer_handle = peer_info.lockAndGetHandle();
93 		try {
94 			nMakeCurrent(peer_handle, handle);
95 		} finally {
96 			peer_info.unlock();
97 		}
98 	}
99 
nMakeCurrent(ByteBuffer peer_handle, ByteBuffer context_handle)100 	private static native void nMakeCurrent(ByteBuffer peer_handle, ByteBuffer context_handle) throws LWJGLException;
101 
isCurrent(ByteBuffer handle)102 	public boolean isCurrent(ByteBuffer handle) throws LWJGLException {
103 		boolean result = nIsCurrent(handle);
104 		return result;
105 	}
106 
nIsCurrent(ByteBuffer context_handle)107 	private static native boolean nIsCurrent(ByteBuffer context_handle) throws LWJGLException;
108 
setSwapInterval(int value)109 	public void setSwapInterval(int value) {
110 		boolean success = nSetSwapInterval(value);
111 		if ( !success )
112 			LWJGLUtil.log("Failed to set swap interval");
113 		Util.checkGLError();
114 	}
115 
nSetSwapInterval(int value)116 	private static native boolean nSetSwapInterval(int value);
117 
destroy(PeerInfo peer_info, ByteBuffer handle)118 	public void destroy(PeerInfo peer_info, ByteBuffer handle) throws LWJGLException {
119 		nDestroy(handle);
120 	}
121 
nDestroy(ByteBuffer context_handle)122 	private static native void nDestroy(ByteBuffer context_handle) throws LWJGLException;
123 }
124