/**
* Copyright 2011 JogAmp Community. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are
* permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this list of
* conditions and the following disclaimer.
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* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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package com.jogamp.opengl.test.junit.jogl.acore;
import com.jogamp.common.nio.Buffers;
import com.jogamp.opengl.test.junit.util.NEWTGLContext;
import com.jogamp.opengl.test.junit.util.UITestCase;
import static org.junit.Assert.assertEquals;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
import com.jogamp.opengl.GL;
import com.jogamp.opengl.GL2ES3;
import com.jogamp.opengl.GLBufferStorage;
import com.jogamp.opengl.GLCapabilities;
import com.jogamp.opengl.GLProfile;
import org.junit.Assert;
import org.junit.Test;
import org.junit.FixMethodOrder;
import org.junit.runners.MethodSorters;
/**
* Verifies content of buffer storage's content
* as well as general buffer- and buffer-storage tracking.
* <p>
* Implementation uses ByteBuffer and Buffers or NIO API.
* </p>
*
* @author Luz, et.al.
*/
@FixMethodOrder(MethodSorters.NAME_ASCENDING)
public class TestMapBufferRead01NEWT extends UITestCase {
static final boolean DEBUG = false;
@Test
public void testWriteRead01aMap() throws InterruptedException {
if(!GLProfile.isAvailable(GLProfile.GL2GL3)) {
System.err.println("Test requires GL2/GL3 profile.");
return;
}
testWriteRead01(createVerticesBB(false), false /* useRange */);
}
@Test
public void testWriteRead01bMap() throws InterruptedException {
if(!GLProfile.isAvailable(GLProfile.GL2GL3)) {
System.err.println("Test requires GL2/GL3 profile.");
return;
}
testWriteRead01(createVerticesBB(true), false /* useRange */);
}
@Test
public void testWriteRead02aMapRange() throws InterruptedException {
if(!GLProfile.isAvailable(GLProfile.GL3) && !!GLProfile.isAvailable(GLProfile.GLES3)) {
System.err.println("Test requires GL3 or GLES3 profile.");
return;
}
testWriteRead01(createVerticesBB(false), true/* useRange */);
}
@Test
public void testWriteRead02bMapRange() throws InterruptedException {
if(!GLProfile.isAvailable(GLProfile.GL3) && !!GLProfile.isAvailable(GLProfile.GLES3)) {
System.err.println("Test requires GL3 or GLES3 profile.");
return;
}
testWriteRead01(createVerticesBB(true), true /* useRange */);
}
static final float[] vertexData = new float[] { -0.3f, -0.2f, -0.1f, 0.1f, 0.2f, 0.3f, 0.4f, 0.5f, 0.6f };
static ByteBuffer createVerticesBB(final boolean useBuffersAPI) {
final ByteBuffer res;
if( useBuffersAPI ) {
res = Buffers.newDirectByteBuffer(Buffers.SIZEOF_FLOAT*vertexData.length);
final FloatBuffer resF = res.asFloatBuffer();
resF.put(vertexData, 0, vertexData.length).rewind();
} else {
res = ByteBuffer.allocate(Buffers.SIZEOF_FLOAT*vertexData.length);
res.order(ByteOrder.nativeOrder());
for(int i=0; i<vertexData.length; i++) {
res.putFloat(vertexData[i]);
}
res.rewind();
}
if(DEBUG) {
System.err.println("java "+res);
for(int i=0; i < res.capacity(); i+=4) {
System.err.println("java ["+i+"]: "+res.getFloat(i));
}
}
return res;
}
private void testWriteRead01(final ByteBuffer verticiesBB, final boolean useRange) throws InterruptedException {
// Validate incoming ByteBuffer first
assertEquals(0, verticiesBB.position());
assertEquals(Buffers.SIZEOF_FLOAT*vertexData.length, verticiesBB.limit());
assertEquals(Buffers.SIZEOF_FLOAT*vertexData.length, verticiesBB.capacity());
assertEquals(Buffers.SIZEOF_FLOAT*vertexData.length, verticiesBB.remaining());
assertEquals(-0.3f, verticiesBB.getFloat(Buffers.SIZEOF_FLOAT*0), 0.05f);
assertEquals( 0.6f, verticiesBB.getFloat(Buffers.SIZEOF_FLOAT*8), 0.05f);
final GLProfile glp = GLProfile.getMaxProgrammable(true);
final GLCapabilities caps = new GLCapabilities(glp);
caps.setOnscreen(false);
final NEWTGLContext.WindowContext winctx = NEWTGLContext.createWindow(
caps, 800, 600, true);
try {
final GL gl = winctx.context.getGL();
final int[] vertexBuffer = new int[1];
gl.glGenBuffers(1, vertexBuffer, 0);
gl.glBindBuffer(GL.GL_ARRAY_BUFFER, vertexBuffer[0]);
gl.glBufferData(GL.GL_ARRAY_BUFFER, verticiesBB.capacity(), verticiesBB, GL2ES3.GL_STATIC_READ);
// gl.glBufferData(GL.GL_ARRAY_BUFFER, verticiesBB.capacity(), verticiesBB, GL.GL_STATIC_DRAW);
final int bufferName = gl.getBoundBuffer(GL.GL_ARRAY_BUFFER);
final GLBufferStorage bufferStorage = gl.getBufferStorage(bufferName);
System.err.println("gpu-01 GL_ARRAY_BUFFER -> bufferName "+bufferName+" -> "+bufferStorage);
Assert.assertEquals("Buffer storage's bytes-buffer not null before map", null, bufferStorage.getMappedBuffer());
final int floatOffset, byteOffset, mapByteLength;
final ByteBuffer bb;
if( useRange ) {
floatOffset = 3;
byteOffset = Buffers.SIZEOF_FLOAT*floatOffset;
mapByteLength = verticiesBB.capacity()-byteOffset;
bb = gl.glMapBufferRange(GL.GL_ARRAY_BUFFER, byteOffset, mapByteLength, GL.GL_MAP_READ_BIT);
} else {
floatOffset = 0;
byteOffset = 0;
mapByteLength = verticiesBB.capacity();
bb = gl.glMapBuffer(GL.GL_ARRAY_BUFFER, GL2ES3.GL_READ_ONLY);
}
System.err.println("gpu-02 mapped GL_ARRAY_BUFFER, floatOffset "+floatOffset+", byteOffset "+byteOffset+", mapByteLength "+mapByteLength+" -> "+bb);
System.err.println("gpu-03 GL_ARRAY_BUFFER -> bufferName "+bufferName+" -> "+bufferStorage);
Assert.assertNotNull(bb);
Assert.assertEquals("BufferStorage size less byteOffset not equals buffer storage size", bufferStorage.getSize()-byteOffset, bb.capacity());
Assert.assertEquals("BufferStorage's bytes-buffer not equal with mapped bytes-buffer", bufferStorage.getMappedBuffer(), bb);
Assert.assertEquals("Buffer storage size not equals mapByteLength", mapByteLength, bb.capacity());
if(DEBUG) {
System.err.println("floatOffset "+floatOffset+", byteOffset "+byteOffset);
for(int i=0; i < bb.capacity(); i+=4) {
System.err.println("gpu "+i+": "+bb.getFloat(i));
}
}
for(int i=0; i < bb.capacity(); i+=4) {
Assert.assertEquals(verticiesBB.getFloat(byteOffset+i), bb.getFloat(i), 0.0001f);
}
gl.glUnmapBuffer(GL.GL_ARRAY_BUFFER);
Assert.assertEquals("Buffer storage's bytes-buffer not null after unmap", null, bufferStorage.getMappedBuffer());
} finally {
NEWTGLContext.destroyWindow(winctx);
}
}
public static void main(final String args[]) throws IOException {
final String tstname = TestMapBufferRead01NEWT.class.getName();
org.junit.runner.JUnitCore.main(tstname);
}
}