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authorKenneth Russel <[email protected]>2009-06-15 23:05:16 +0000
committerKenneth Russel <[email protected]>2009-06-15 23:05:16 +0000
commit935d2596c13371bb745d921dbcb9f05b0c11a010 (patch)
tree7fcc310618ae5a90edc734dc821e75afc0f080aa /src/demos/vertexBufferObject/VertexBufferObject.java
parente2332d2f2908e68f1e77454c73f329f8ff2b400d (diff)
Deleted obsolete source code in preparation for copying JOGL_2_SANDBOX
on to trunk git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/jogl-demos/trunk@351 3298f667-5e0e-4b4a-8ed4-a3559d26a5f4
Diffstat (limited to 'src/demos/vertexBufferObject/VertexBufferObject.java')
-rw-r--r--src/demos/vertexBufferObject/VertexBufferObject.java758
1 files changed, 0 insertions, 758 deletions
diff --git a/src/demos/vertexBufferObject/VertexBufferObject.java b/src/demos/vertexBufferObject/VertexBufferObject.java
deleted file mode 100644
index e58d0fa..0000000
--- a/src/demos/vertexBufferObject/VertexBufferObject.java
+++ /dev/null
@@ -1,758 +0,0 @@
-/*
- * Portions Copyright (C) 2003 Sun Microsystems, Inc.
- * All rights reserved.
- */
-
-/*
- *
- * COPYRIGHT NVIDIA CORPORATION 2003. ALL RIGHTS RESERVED.
- * BY ACCESSING OR USING THIS SOFTWARE, YOU AGREE TO:
- *
- * 1) ACKNOWLEDGE NVIDIA'S EXCLUSIVE OWNERSHIP OF ALL RIGHTS
- * IN AND TO THE SOFTWARE;
- *
- * 2) NOT MAKE OR DISTRIBUTE COPIES OF THE SOFTWARE WITHOUT
- * INCLUDING THIS NOTICE AND AGREEMENT;
- *
- * 3) ACKNOWLEDGE THAT TO THE MAXIMUM EXTENT PERMITTED BY
- * APPLICABLE LAW, THIS SOFTWARE IS PROVIDED *AS IS* AND
- * THAT NVIDIA AND ITS SUPPLIERS DISCLAIM ALL WARRANTIES,
- * EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED
- * TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE.
- *
- * IN NO EVENT SHALL NVIDIA OR ITS SUPPLIERS BE LIABLE FOR ANY
- * SPECIAL, INCIDENTAL, INDIRECT, OR CONSEQUENTIAL DAMAGES
- * WHATSOEVER (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS
- * OF BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS
- * INFORMATION, OR ANY OTHER PECUNIARY LOSS), INCLUDING ATTORNEYS'
- * FEES, RELATING TO THE USE OF OR INABILITY TO USE THIS SOFTWARE,
- * EVEN IF NVIDIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
- */
-
-package demos.vertexBufferObject;
-
-import java.awt.*;
-import java.awt.event.*;
-import java.nio.*;
-import java.util.*;
-import javax.swing.*;
-
-import javax.media.opengl.*;
-import javax.media.opengl.glu.*;
-import com.sun.opengl.util.*;
-import demos.common.*;
-import demos.util.*;
-
-/** <P> A port of NVidia's [tm] Vertex Array Range demonstration to
- OpenGL[tm] for Java[tm], the Java programming language, and the
- vendor-neutral Vertex Buffer Object extension. The current web
- site for the demo is <a href =
- "http://developer.nvidia.com/object/vardemo.html">here</a>. </P>
-
- <P> This demonstration requires the following:
-
- <ul>
- <li> A JDK 1.4 implementation
- <li> A card supporting the GL_ARB_vertex_buffer_object extension
- (only in recent drivers)
- </ul>
-
- </P>
-
- <P> This demonstration illustrates the use of the java.nio direct
- buffer classes in JDK 1.4 to access memory outside of the Java
- garbage-collected heap, in particular that returned from the call
- glMapBufferARB, to achieve higher performance than accessing the
- same data in system memory allows. </P>
-*/
-
-public class VertexBufferObject extends Demo {
- public static void main(String[] args) {
- boolean vboEnabled = true;
-
- if (args.length > 1) {
- usage();
- }
-
- if (args.length == 1) {
- if (args[0].equals("-slow")) {
- vboEnabled = false;
- } else {
- usage();
- }
- }
-
- GLCanvas canvas = new GLCanvas();
- VertexBufferObject demo = new VertexBufferObject();
- demo.vboEnabled = vboEnabled;
- canvas.addGLEventListener(demo);
-
- final Animator animator = new Animator(canvas);
- animator.setRunAsFastAsPossible(true);
- demo.setDemoListener(new DemoListener() {
- public void shutdownDemo() {
- runExit(animator);
- }
- public void repaint() {}
- });
-
- Frame frame = new Frame("Very Simple vertex_buffer_object demo");
- frame.addWindowListener(new WindowAdapter() {
- public void windowClosing(WindowEvent e) {
- runExit(animator);
- }
- });
- frame.setLayout(new BorderLayout());
- canvas.setSize(800, 800);
- frame.add(canvas, BorderLayout.CENTER);
- frame.pack();
- frame.show();
- canvas.requestFocus();
-
- animator.start();
- }
-
- private static void usage() {
- System.out.println("usage: java VertexBufferObject [-slow]");
- System.out.println("-slow flag starts up using data in the Java heap");
- System.exit(0);
- }
-
- public VertexBufferObject() {
- setFlag(' ', true); // animation on
- setFlag('i', true); // infinite viewer and light
- }
-
- //----------------------------------------------------------------------
- // Internals only below this point
- //
-
- private GLU glu = new GLU();
- private boolean initComplete;
- private boolean[] b = new boolean[256];
- private static final int SIZEOF_FLOAT = 4;
- // private static final int STRIP_SIZE = 48;
- private static final int STRIP_SIZE = 144;
- // private int tileSize = 9 * STRIP_SIZE;
- private int tileSize = 3 * STRIP_SIZE;
- private int numBuffers = 1;
- private int bufferLength = 1000000;
- private int bufferSize = bufferLength * SIZEOF_FLOAT;
- private static final int SIN_ARRAY_SIZE = 1024;
-
- private int bigBufferObject;
- private boolean vboEnabled = true;
- private ByteBuffer bigArrayVBOBytes;
- private FloatBuffer bigArrayVBO;
- private FloatBuffer bigArraySystem;
- private FloatBuffer bigArray;
- private IntBuffer[] elements;
- private int elementBufferObject;
- private float[] xyArray;
-
- static class VBOBuffer {
- public FloatBuffer vertices;
- public FloatBuffer normals;
- public int vertexOffset;
- public int normalOffset;
- }
- private VBOBuffer[] buffers;
-
- private float[] sinArray;
- private float[] cosArray;
-
- // Primitive: GL_QUAD_STRIP, GL_LINE_STRIP, or GL_POINTS
- private int primitive = GL.GL_QUAD_STRIP;
-
- // Animation parameters
- private float hicoef = .06f;
- private float locoef = .10f;
- private float hifreq = 6.1f;
- private float lofreq = 2.5f;
- private float phaseRate = .02f;
- private float phase2Rate = -0.12f;
- private float phase = 0;
- private float phase2 = 0;
-
- // Temporaries for computation
- float[] ysinlo = new float[STRIP_SIZE];
- float[] ycoslo = new float[STRIP_SIZE];
- float[] ysinhi = new float[STRIP_SIZE];
- float[] ycoshi = new float[STRIP_SIZE];
-
- // For thread-safety when dealing with keypresses
- private volatile boolean toggleVBO = false;
- private volatile boolean toggleLighting = false;
- private volatile boolean toggleLightingModel = false;
- private volatile boolean recomputeElements = false;
- private volatile boolean quit = false;
-
- // Frames-per-second computation
- private boolean firstProfiledFrame;
- private int profiledFrameCount;
- private int numDrawElementsCalls;
- private long startTimeMillis;
-
- static class PeriodicIterator {
- public PeriodicIterator(int arraySize,
- float period,
- float initialOffset,
- float delta) {
- float arrayDelta = arraySize * (delta / period); // floating-point steps-per-increment
- increment = (int)(arrayDelta * (1<<16)); // fixed-point steps-per-increment
-
- float offset = arraySize * (initialOffset / period); // floating-point initial index
- initOffset = (int)(offset * (1<<16)); // fixed-point initial index
-
- arraySizeMask = 0;
- int i = 20; // array should be reasonably sized...
- while((arraySize & (1<<i)) == 0) {
- i--;
- }
- arraySizeMask = (1<<i)-1;
- index = initOffset;
- }
-
- public PeriodicIterator(PeriodicIterator arg) {
- this.arraySizeMask = arg.arraySizeMask;
- this.increment = arg.increment;
- this.initOffset = arg.initOffset;
- this.index = arg.index;
- }
-
- public int getIndex() {
- return (index >> 16) & arraySizeMask;
- }
-
- public void incr() {
- index += increment;
- }
-
- public void decr() {
- index -= increment;
- }
-
- public void reset() {
- index = initOffset;
- }
-
- //----------------------------------------------------------------------
- // Internals only below this point
- //
-
- private int arraySizeMask;
- // fraction bits == 16
- private int increment;
- private int initOffset;
- private int index;
- }
-
- private void setFlag(char key, boolean val) {
- b[((int) key) & 0xFF] = val;
- }
-
- private boolean getFlag(char key) {
- return b[((int) key) & 0xFF];
- }
-
- private void initExtension(GL gl, String glExtensionName) {
- if (!gl.isExtensionAvailable(glExtensionName)) {
- final String message = "OpenGL extension \"" + glExtensionName + "\" not available";
- new Thread(new Runnable() {
- public void run() {
- JOptionPane.showMessageDialog(null, message, "Unavailable extension", JOptionPane.ERROR_MESSAGE);
- shutdownDemo();
- }
- }).start();
- throw new RuntimeException(message);
- }
- }
-
- public void init(GLAutoDrawable drawable) {
- initComplete = false;
- // drawable.setGL(new TraceGL(drawable.getGL(), System.err));
- // drawable.setGL(new DebugGL(drawable.getGL()));
-
- GL gl = drawable.getGL();
-
- // Try and disable synch-to-retrace for fastest framerate
- gl.setSwapInterval(0);
-
- try {
- initExtension(gl, "GL_ARB_vertex_buffer_object");
- } catch (RuntimeException e) {
- throw (e);
- }
-
- gl.glEnable(GL.GL_DEPTH_TEST);
-
- gl.glClearColor(0, 0, 0, 0);
-
- gl.glEnable(GL.GL_LIGHT0);
- gl.glEnable(GL.GL_LIGHTING);
- gl.glEnable(GL.GL_NORMALIZE);
- gl.glMaterialfv(GL.GL_FRONT_AND_BACK, GL.GL_AMBIENT, new float[] {.1f, .1f, 0, 1}, 0);
- gl.glMaterialfv(GL.GL_FRONT_AND_BACK, GL.GL_DIFFUSE, new float[] {.6f, .6f, .1f, 1}, 0);
- gl.glMaterialfv(GL.GL_FRONT_AND_BACK, GL.GL_SPECULAR, new float[] { 1, 1, .75f, 1}, 0);
- gl.glMaterialf(GL.GL_FRONT_AND_BACK, GL.GL_SHININESS, 128.f);
-
- gl.glLightfv(GL.GL_LIGHT0, GL.GL_POSITION, new float[] { .5f, 0, .5f, 0}, 0);
- gl.glLightModeli(GL.GL_LIGHT_MODEL_LOCAL_VIEWER, 0);
-
- // NOTE: it looks like GLUT (or something else) sets up the
- // projection matrix in the C version of this demo.
- gl.glMatrixMode(GL.GL_PROJECTION);
- gl.glLoadIdentity();
- glu.gluPerspective(60, 1.0, 0.1, 100);
- gl.glMatrixMode(GL.GL_MODELVIEW);
-
- allocateBigArray(gl);
- allocateBuffers(gl);
-
- sinArray = new float[SIN_ARRAY_SIZE];
- cosArray = new float[SIN_ARRAY_SIZE];
-
- for (int i = 0; i < SIN_ARRAY_SIZE; i++) {
- double step = i * 2 * Math.PI / SIN_ARRAY_SIZE;
- sinArray[i] = (float) Math.sin(step);
- cosArray[i] = (float) Math.cos(step);
- }
-
- if (vboEnabled) {
- bigArray = bigArrayVBO;
- } else {
- bigArray = bigArraySystem;
- }
- setupBuffers();
- gl.glEnableClientState(GL.GL_VERTEX_ARRAY);
- gl.glEnableClientState(GL.GL_NORMAL_ARRAY);
-
- computeElements(gl);
-
- drawable.addKeyListener(new KeyAdapter() {
- public void keyTyped(KeyEvent e) {
- dispatchKey(e.getKeyChar());
- }
- });
- initComplete = true;
- }
-
- private void allocateBuffers(GL gl) {
- buffers = new VBOBuffer[numBuffers];
- for (int i = 0; i < numBuffers; i++) {
- buffers[i] = new VBOBuffer();
- }
- }
-
- private void setupBuffers() {
- int sliceSize = bufferLength / numBuffers;
- for (int i = 0; i < numBuffers; i++) {
- int startIndex = i * sliceSize;
- buffers[i].vertices = sliceBuffer(bigArray, startIndex, sliceSize);
- buffers[i].normals = sliceBuffer(buffers[i].vertices, 3,
- buffers[i].vertices.limit() - 3);
- buffers[i].vertexOffset = startIndex * BufferUtil.SIZEOF_FLOAT;
- buffers[i].normalOffset = (startIndex + 3) * BufferUtil.SIZEOF_FLOAT;
- }
- }
-
- private void dispatchKey(char k) {
- setFlag(k, !getFlag(k));
- // Quit on escape or 'q'
- if ((k == (char) 27) || (k == 'q')) {
- shutdownDemo();
- return;
- }
-
- if (k == 'r') {
- if (getFlag(k)) {
- profiledFrameCount = 0;
- numDrawElementsCalls = 0;
- firstProfiledFrame = true;
- }
- }
-
- if (k == 'w') {
- if (getFlag(k)) {
- primitive = GL.GL_LINE_STRIP;
- } else {
- primitive = GL.GL_QUAD_STRIP;
- }
- }
-
- if (k == 'p') {
- if (getFlag(k)) {
- primitive = GL.GL_POINTS;
- } else {
- primitive = GL.GL_QUAD_STRIP;
- }
- }
-
- if (k == 'v') {
- toggleVBO = true;
- }
-
- if (k == 'd') {
- toggleLighting = true;
- }
-
- if (k == 'i') {
- toggleLightingModel = true;
- }
-
- if('h'==k)
- hicoef += .005;
- if('H'==k)
- hicoef -= .005;
- if('l'==k)
- locoef += .005;
- if('L'==k)
- locoef -= .005;
- if('1'==k)
- lofreq += .1f;
- if('2'==k)
- lofreq -= .1f;
- if('3'==k)
- hifreq += .1f;
- if('4'==k)
- hifreq -= .1f;
- if('5'==k)
- phaseRate += .01f;
- if('6'==k)
- phaseRate -= .01f;
- if('7'==k)
- phase2Rate += .01f;
- if('8'==k)
- phase2Rate -= .01f;
-
- if('t'==k) {
- if(tileSize < 864) {
- tileSize += STRIP_SIZE;
- recomputeElements = true;
- System.err.println("tileSize = " + tileSize);
- }
- }
-
- if('T'==k) {
- if(tileSize > STRIP_SIZE) {
- tileSize -= STRIP_SIZE;
- recomputeElements = true;
- System.err.println("tileSize = " + tileSize);
- }
- }
- }
-
- public void display(GLAutoDrawable drawable) {
- if (!initComplete) {
- return;
- }
-
- GL gl = drawable.getGL();
-
- // Check to see whether to animate
- if (getFlag(' ')) {
- phase += phaseRate;
- phase2 += phase2Rate;
-
- if (phase > (float) (20 * Math.PI)) {
- phase = 0;
- }
-
- if (phase2 < (float) (-20 * Math.PI)) {
- phase2 = 0;
- }
- }
-
- PeriodicIterator loX =
- new PeriodicIterator(SIN_ARRAY_SIZE, (float) (2 * Math.PI), phase, (float) ((1.f/tileSize)*lofreq*Math.PI));
- PeriodicIterator loY = new PeriodicIterator(loX);
- PeriodicIterator hiX =
- new PeriodicIterator(SIN_ARRAY_SIZE, (float) (2 * Math.PI), phase2, (float) ((1.f/tileSize)*hifreq*Math.PI));
- PeriodicIterator hiY = new PeriodicIterator(hiX);
-
- if (toggleVBO) {
- vboEnabled = !vboEnabled;
- if (!vboEnabled) {
- bigArray = bigArraySystem;
- setupBuffers();
- }
- toggleVBO = false;
- }
-
- if (toggleLighting) {
- if (getFlag('d')) {
- gl.glDisable(GL.GL_LIGHTING);
- } else {
- gl.glEnable(GL.GL_LIGHTING);
- }
- toggleLighting = false;
- }
-
- if (toggleLightingModel) {
- if(getFlag('i')) {
- // infinite light
- gl.glLightfv(GL.GL_LIGHT0, GL.GL_POSITION, new float[] { .5f, 0, .5f, 0 }, 0);
- gl.glLightModeli(GL.GL_LIGHT_MODEL_LOCAL_VIEWER, 0);
- } else {
- gl.glLightfv(GL.GL_LIGHT0, GL.GL_POSITION, new float[] { .5f, 0, -.5f,1 }, 0);
- gl.glLightModeli(GL.GL_LIGHT_MODEL_LOCAL_VIEWER, 1);
- }
- toggleLightingModel = false;
- }
-
- if (recomputeElements) {
- computeElements(gl);
- recomputeElements = false;
- }
-
- gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
-
- gl.glPushMatrix();
-
- final float[] modelViewMatrix = new float[] {
- 1, 0, 0, 0,
- 0, 1, 0, 0,
- 0, 0, 1, 0,
- 0, 0, -1, 1
- };
- gl.glLoadMatrixf(modelViewMatrix, 0);
-
- // FIXME: add mouse interaction
- // camera.apply_inverse_transform();
- // object.apply_transform();
-
- int cur = 0;
- int numSlabs = tileSize / STRIP_SIZE;
-
- if (vboEnabled) {
- gl.glBindBufferARB(GL.GL_ARRAY_BUFFER_ARB, bigBufferObject);
- } else {
- gl.glBindBufferARB(GL.GL_ARRAY_BUFFER_ARB, 0);
- }
-
- for(int slab = numSlabs; --slab>=0; ) {
- cur = slab % numBuffers;
-
- if (vboEnabled) {
- ByteBuffer tmp = gl.glMapBufferARB(GL.GL_ARRAY_BUFFER_ARB, GL.GL_WRITE_ONLY_ARB);
- if (tmp == null) {
- throw new RuntimeException("Unable to map vertex buffer object");
- }
- if (tmp != bigArrayVBOBytes) {
- bigArrayVBOBytes = tmp;
- bigArrayVBO = setupBuffer(tmp);
- }
- if (bigArray != bigArrayVBO) {
- bigArray = bigArrayVBO;
- setupBuffers();
- }
- }
-
- FloatBuffer v = buffers[cur].vertices;
- int vertexIndex = 0;
-
- if (vboEnabled) {
- gl.glVertexPointer(3, GL.GL_FLOAT, 6 * SIZEOF_FLOAT, buffers[cur].vertexOffset);
- gl.glNormalPointer( GL.GL_FLOAT, 6 * SIZEOF_FLOAT, buffers[cur].normalOffset);
- } else {
- gl.glVertexPointer(3, GL.GL_FLOAT, 6 * SIZEOF_FLOAT, v);
- gl.glNormalPointer( GL.GL_FLOAT, 6 * SIZEOF_FLOAT, buffers[cur].normals);
- }
-
- for(int jj=STRIP_SIZE; --jj>=0; ) {
- ysinlo[jj] = sinArray[loY.getIndex()];
- ycoslo[jj] = cosArray[loY.getIndex()]; loY.incr();
- ysinhi[jj] = sinArray[hiY.getIndex()];
- ycoshi[jj] = cosArray[hiY.getIndex()]; hiY.incr();
- }
- loY.decr();
- hiY.decr();
-
- for(int i = tileSize; --i>=0; ) {
- float x = xyArray[i];
- int loXIndex = loX.getIndex();
- int hiXIndex = hiX.getIndex();
-
- int jOffset = (STRIP_SIZE-1)*slab;
- float nx = locoef * -cosArray[loXIndex] + hicoef * -cosArray[hiXIndex];
-
- // Help the HotSpot Client Compiler by hoisting loop
- // invariant variables into locals. Note that this may be
- // good practice for innermost loops anyway since under
- // the new memory model operations like accidental
- // synchronization may force any compiler to reload these
- // fields from memory, destroying their ability to
- // optimize.
- float locoef_tmp = locoef;
- float hicoef_tmp = hicoef;
- float[] ysinlo_tmp = ysinlo;
- float[] ysinhi_tmp = ysinhi;
- float[] ycoslo_tmp = ycoslo;
- float[] ycoshi_tmp = ycoshi;
- float[] sinArray_tmp = sinArray;
- float[] xyArray_tmp = xyArray;
-
- for(int j = STRIP_SIZE; --j>=0; ) {
- float y;
-
- y = xyArray_tmp[j + jOffset];
-
- float ny;
-
- v.put(vertexIndex, x);
- v.put(vertexIndex + 1, y);
- v.put(vertexIndex + 2, (locoef_tmp * (sinArray_tmp[loXIndex] + ysinlo_tmp[j]) +
- hicoef_tmp * (sinArray_tmp[hiXIndex] + ysinhi_tmp[j])));
- v.put(vertexIndex + 3, nx);
- ny = locoef_tmp * -ycoslo_tmp[j] + hicoef_tmp * -ycoshi_tmp[j];
- v.put(vertexIndex + 4, ny);
- v.put(vertexIndex + 5, .15f); //.15f * (1.f - sqrt(nx * nx + ny * ny));
- vertexIndex += 6;
- }
- loX.incr();
- hiX.incr();
- }
- loX.reset();
- hiX.reset();
-
- if (vboEnabled) {
- gl.glUnmapBufferARB(GL.GL_ARRAY_BUFFER_ARB);
- }
-
- if (getFlag('m')) {
- // Elements merged into buffer object (doesn't seem to improve performance)
-
- int len = tileSize - 1;
- gl.glBindBufferARB(GL.GL_ELEMENT_ARRAY_BUFFER_ARB, elementBufferObject);
- for (int i = 0; i < len; i++) {
- ++numDrawElementsCalls;
- gl.glDrawElements(primitive, 2 * STRIP_SIZE, GL.GL_UNSIGNED_INT,
- i * 2 * STRIP_SIZE * BufferUtil.SIZEOF_INT);
- if(getFlag('f')) {
- gl.glFlush();
- }
- }
- gl.glBindBufferARB(GL.GL_ELEMENT_ARRAY_BUFFER_ARB, 0);
- } else {
- for (int i = 0; i < elements.length; i++) {
- ++numDrawElementsCalls;
- gl.glDrawElements(primitive, elements[i].remaining(), GL.GL_UNSIGNED_INT, elements[i]);
- if(getFlag('f')) {
- gl.glFlush();
- }
- }
- }
- }
-
- gl.glPopMatrix();
-
- if (getFlag('r')) {
- if (!firstProfiledFrame) {
- if (++profiledFrameCount == 30) {
- long endTimeMillis = System.currentTimeMillis();
- double secs = (endTimeMillis - startTimeMillis) / 1000.0;
- double fps = 30.0 / secs;
- double ppf = tileSize * tileSize * 2;
- double mpps = ppf * fps / 1000000.0;
- System.err.println("fps: " + fps + " polys/frame: " + ppf + " million polys/sec: " + mpps +
- " DrawElements calls/frame: " + (numDrawElementsCalls / 30));
- profiledFrameCount = 0;
- numDrawElementsCalls = 0;
- startTimeMillis = System.currentTimeMillis();
- }
- } else {
- startTimeMillis = System.currentTimeMillis();
- firstProfiledFrame = false;
- }
- }
- }
-
- public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {}
-
- // Unused routines
- public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) {}
-
- private void allocateBigArray(GL gl) {
- bigArraySystem = setupBuffer(ByteBuffer.allocateDirect(bufferSize));
-
- int[] tmp = new int[1];
- gl.glGenBuffersARB(1, tmp, 0);
- bigBufferObject = tmp[0];
- gl.glBindBufferARB(GL.GL_ARRAY_BUFFER_ARB, bigBufferObject);
- // Initialize data store of buffer object
- gl.glBufferDataARB(GL.GL_ARRAY_BUFFER_ARB, bufferSize, (Buffer) null, GL.GL_DYNAMIC_DRAW_ARB);
- bigArrayVBOBytes = gl.glMapBufferARB(GL.GL_ARRAY_BUFFER_ARB, GL.GL_WRITE_ONLY_ARB);
- bigArrayVBO = setupBuffer(bigArrayVBOBytes);
- gl.glUnmapBufferARB(GL.GL_ARRAY_BUFFER_ARB);
- // Unbind buffer; will be bound again in main loop
- gl.glBindBufferARB(GL.GL_ARRAY_BUFFER_ARB, 0);
-
- float megabytes = (bufferSize / 1000000.f);
- System.err.println("Allocated " + megabytes + " megabytes of fast memory");
- }
-
- private FloatBuffer setupBuffer(ByteBuffer buf) {
- buf.order(ByteOrder.nativeOrder());
- return buf.asFloatBuffer();
- }
-
- private FloatBuffer sliceBuffer(FloatBuffer array,
- int sliceStartIndex, int sliceLength) {
- array.position(sliceStartIndex);
- FloatBuffer ret = array.slice();
- array.position(0);
- ret.limit(sliceLength);
- return ret;
- }
-
- private void computeElements(GL gl) {
- xyArray = new float[tileSize];
- for (int i = 0; i < tileSize; i++) {
- xyArray[i] = i / (tileSize - 1.0f) - 0.5f;
- }
-
- elements = new IntBuffer[tileSize - 1];
- for (int i = 0; i < tileSize - 1; i++) {
- elements[i] = IntBuffer.allocate(2 * STRIP_SIZE);
- for (int j = 0; j < 2 * STRIP_SIZE; j += 2) {
- elements[i].put(j, i * STRIP_SIZE + (j / 2));
- elements[i].put(j+1, (i + 1) * STRIP_SIZE + (j / 2));
- }
- }
-
- // Create element array buffer
- IntBuffer linearElements = IntBuffer.allocate((tileSize - 1) * (2 * STRIP_SIZE));
- int idx = 0;
- for (int i = 0; i < tileSize - 1; i++) {
- for (int j = 0; j < 2 * STRIP_SIZE; j += 2) {
- linearElements.put(idx++, i * STRIP_SIZE + (j / 2));
- linearElements.put(idx++, (i + 1) * STRIP_SIZE + (j / 2));
- }
- }
- int[] tmp = new int[1];
- gl.glGenBuffersARB(1, tmp, 0);
- elementBufferObject = tmp[0];
- gl.glBindBufferARB(GL.GL_ELEMENT_ARRAY_BUFFER_ARB, elementBufferObject);
- gl.glBufferDataARB(GL.GL_ELEMENT_ARRAY_BUFFER_ARB,
- linearElements.remaining() * BufferUtil.SIZEOF_INT,
- linearElements,
- GL.GL_STATIC_DRAW_ARB);
- gl.glBindBufferARB(GL.GL_ELEMENT_ARRAY_BUFFER_ARB, 0);
- }
-
- private static void runExit(final Animator animator) {
- // Note: calling System.exit() synchronously inside the draw,
- // reshape or init callbacks can lead to deadlocks on certain
- // platforms (in particular, X11) because the JAWT's locking
- // routines cause a global AWT lock to be grabbed. Run the
- // exit routine in another thread.
- new Thread(new Runnable() {
- public void run() {
- animator.stop();
- System.exit(0);
- }
- }).start();
- }
-}