lwjgl/src/java/org/lwjgl/opengles/StateTracker.java

71 lines
2.3 KiB
Java

/*
* Copyright (c) 2002-2011 LWJGL 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 'LWJGL' 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.
*/
package org.lwjgl.opengles;
import java.nio.Buffer;
import static org.lwjgl.opengles.GLES20.*;
final class StateTracker {
private static StateTracker tracker = new StateTracker();
int elementArrayBuffer;
int arrayBuffer;
Buffer[] glVertexAttribPointer_buffer;
StateTracker() {
}
void init() {
glVertexAttribPointer_buffer = new Buffer[glGetInteger(GL_MAX_VERTEX_ATTRIBS)];
}
static StateTracker getTracker() {
return tracker;
}
static void bindBuffer(int target, int buffer) {
final StateTracker tracker = getTracker();
switch ( target ) {
case GL_ARRAY_BUFFER:
tracker.arrayBuffer = buffer;
break;
case GL_ELEMENT_ARRAY_BUFFER:
tracker.elementArrayBuffer = buffer;
break;
}
}
}