86 lines
4.2 KiB
Java
86 lines
4.2 KiB
Java
/*
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* Copyright (c) 2002-2011 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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package org.lwjgl.opengles;
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import org.lwjgl.util.generator.*;
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import org.lwjgl.util.generator.opengl.GLenum;
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import org.lwjgl.util.generator.opengl.GLvoid;
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import java.nio.ByteBuffer;
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public interface OES_mapbuffer {
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/** Accepted by the <access> parameter of MapBufferOES: */
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int GL_WRITE_ONLY_OES = 0x88B9;
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/** Accepted by the <value> parameter of GetBufferParameteriv: */
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int GL_BUFFER_ACCESS_OES = 0x88BB,
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GL_BUFFER_MAPPED_OES = 0x88BC;
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/** Accepted by the <pname> parameter of GetBufferPointervOES: */
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int GL_BUFFER_MAP_POINTER_OES = 0x88BD;
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@StripPostfix("pointer")
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@CachedResult
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@AutoSize("GLChecks.getBufferObjectSize(target)")
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void glGetBufferPointervOES(@GLenum int target, @GLenum int pname, @OutParameter @Result @GLvoid ByteBuffer pointer);
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/**
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* glMapBufferOES maps a GL buffer object to a ByteBuffer. The old_buffer argument can be null,
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* in which case a new ByteBuffer will be created, pointing to the returned memory. If old_buffer is non-null,
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* it will be returned if it points to the same mapped memory and has the same capacity as the buffer object,
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* otherwise a new ByteBuffer is created. That way, an application will normally use glMapBuffer like this:
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* <p/>
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* ByteBuffer mapped_buffer; mapped_buffer = glMapBufferOES(..., ..., null); ... // Another map on the same buffer mapped_buffer = glMapBufferOES(..., ..., mapped_buffer);
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* <p/>
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* Only ByteBuffers returned from this method are to be passed as the old_buffer argument. User-created ByteBuffers cannot be reused.
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* <p/>
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* The version of this method without an explicit length argument calls glGetBufferParameter internally to
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* retrieve the current buffer object size, which may cause a pipeline flush and reduce application performance.
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* <p/>
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* The version of this method with an explicit length argument is a fast alternative to the one without. No GL call
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* is made to retrieve the buffer object size, so the user is responsible for tracking and using the appropriate length.<br>
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* Security warning: The length argument should match the buffer object size. Reading from or writing to outside
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* the memory region that corresponds to the mapped buffer object will cause native crashes.
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*
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* @param old_buffer A ByteBuffer. If this argument points to the same address and has the same capacity as the new mapping, it will be returned and no new buffer will be created.
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*
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* @return A ByteBuffer representing the mapped buffer memory.
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*/
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@CachedResult
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@GLvoid
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@AutoSize("GLChecks.getBufferObjectSize(target)")
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ByteBuffer glMapBufferOES(@GLenum int target, @GLenum int access);
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boolean glUnmapBufferOES(@GLenum int target);
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} |