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Diffstat (limited to 'src/demos/vertexArrayRange')
| -rw-r--r-- | src/demos/vertexArrayRange/VertexArrayRange.java | 722 |
1 files changed, 0 insertions, 722 deletions
diff --git a/src/demos/vertexArrayRange/VertexArrayRange.java b/src/demos/vertexArrayRange/VertexArrayRange.java deleted file mode 100644 index 8007232..0000000 --- a/src/demos/vertexArrayRange/VertexArrayRange.java +++ /dev/null @@ -1,722 +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.vertexArrayRange; - -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 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] and the Java programming language. The - current web site for the demo (which does not appear to contain - the original C++ source code for this demo) is <a href = - "http://developer.nvidia.com/view.asp?IO=Using_GL_NV_fence">here</a>. </P> - - <P> This demonstration requires the following: - - <ul> - <li> A JDK 1.4 implementation - <li> an NVidia GeForce-based card - <li> a recent set of drivers - </ul> - - </P> - - <P> This demonstration illustrates the effective 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 NVidia-specific routine wglAllocateMemoryNV. This memory - region is used in conjunction with glVertexArrayRangeNV. </P> - - <P> On a 750 MHz PIII with an SDRAM memory bus and a GeForce 256 - running the Java HotSpot[tm] Client VM and OpenGL for Java 2.8, - this demonstration attains 90% of the speed of the compiled C++ - code, with a frame rate of 27 FPS, compared to 30 FPS for the C++ - version. On higher-end hardware (a dual 667 MHz PIII with RDRAM - and a GeForce 2) the demo currently attains between 65% and 75% of - C++ speed with the HotSpot Client and Server compilers, - respectively. </P> */ - -public class VertexArrayRange extends Demo { - public static void main(String[] args) { - boolean startSlow = false; - - if (args.length > 1) { - usage(); - } - - if (args.length == 1) { - if (args[0].equals("-slow")) { - startSlow = true; - } else { - usage(); - } - } - - GLCanvas canvas = new GLCanvas(); - VertexArrayRange demo = new VertexArrayRange(); - if (startSlow) { - demo.setFlag('v', false); // VAR off - } - 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 NV_vertex_array_range 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 VertexArrayRange [-slow]"); - System.out.println("-slow flag starts up using data in the Java heap"); - System.exit(0); - } - - public VertexArrayRange() { - setFlag(' ', true); // animation on - setFlag('i', true); // infinite viewer and light - setFlag('v', true); // VAR on - } - - //---------------------------------------------------------------------- - // Internals only below this point - // - - private GLU glu = new GLU(); - private boolean[] b = new boolean[256]; - private static final int SIZEOF_FLOAT = 4; - private static final int STRIP_SIZE = 48; - private int tileSize = 9 * STRIP_SIZE; - private int numBuffers = 4; - private int bufferLength = 1000000; - private int bufferSize = bufferLength * SIZEOF_FLOAT; - private static final int SIN_ARRAY_SIZE = 1024; - - private FloatBuffer bigArrayVar; - private FloatBuffer bigArraySystem; - private FloatBuffer bigArray; - private IntBuffer[] elements; - private float[] xyArray; - - static class VarBuffer { - public FloatBuffer vertices; - public FloatBuffer normals; - public int fence; - } - private VarBuffer[] 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 toggleVAR = false; - private volatile boolean toggleLighting = false; - private volatile boolean toggleLightingModel = false; - private volatile boolean recomputeElements = 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; - } - - 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 ensurePresent(GL gl, String function) { - if (!gl.isFunctionAvailable(function)) { - final String message = "OpenGL routine \"" + function + "\" 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) { - // 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 { - ensurePresent(gl, "glVertexArrayRangeNV"); - ensurePresent(gl, "glGenFencesNV"); - ensurePresent(gl, "glSetFenceNV"); - ensurePresent(gl, "glTestFenceNV"); - ensurePresent(gl, "glFinishFenceNV"); - ensurePresent(gl, "glAllocateMemoryNV"); - } catch (RuntimeException e) { - shutdownDemo(); - 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, true); - allocateBuffersAndFences(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 (getFlag('v')) { - gl.glEnableClientState(GL.GL_VERTEX_ARRAY_RANGE_NV); - gl.glVertexArrayRangeNV(bufferSize, bigArrayVar); - bigArray = bigArrayVar; - } else { - bigArray = bigArraySystem; - } - setupBuffers(); - gl.glEnableClientState(GL.GL_VERTEX_ARRAY); - gl.glEnableClientState(GL.GL_NORMAL_ARRAY); - - computeElements(); - - drawable.addKeyListener(new KeyAdapter() { - public void keyTyped(KeyEvent e) { - dispatchKey(e.getKeyChar()); - } - }); - } - - private void allocateBuffersAndFences(GL gl) { - buffers = new VarBuffer[numBuffers]; - int[] fences = new int[1]; - for (int i = 0; i < numBuffers; i++) { - buffers[i] = new VarBuffer(); - gl.glGenFencesNV(1, fences, 0); - buffers[i].fence = fences[0]; - } - } - - 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); - } - } - - 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') { - toggleVAR = 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) { - 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 (toggleVAR) { - if (getFlag('v')) { - gl.glEnableClientState(GL.GL_VERTEX_ARRAY_RANGE_NV); - gl.glVertexArrayRangeNV(bufferSize, bigArrayVar); - bigArray = bigArrayVar; - } else { - gl.glDisableClientState(GL.GL_VERTEX_ARRAY_RANGE_NV); - bigArray = bigArraySystem; - } - toggleVAR = false; - setupBuffers(); - } - - 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(); - 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; - - for(int slab = numSlabs; --slab>=0; ) { - cur = slab % numBuffers; - if (slab >= numBuffers) { - if (!gl.glTestFenceNV(buffers[cur].fence)) { - gl.glFinishFenceNV(buffers[cur].fence); - } - } - - FloatBuffer v = buffers[cur].vertices; - int vertexIndex = 0; - - 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(); - - for (int i = 0; i < elements.length; i++) { - ++numDrawElementsCalls; - gl.glDrawElements(primitive, elements[i].capacity(), GL.GL_UNSIGNED_INT, elements[i]); - if(getFlag('f')) { - gl.glFlush(); - } - } - - gl.glSetFenceNV(buffers[cur].fence, GL.GL_ALL_COMPLETED_NV); - } - - gl.glPopMatrix(); - - gl.glFinishFenceNV(buffers[cur].fence); - - 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, boolean tryAgain) { - float priority = .5f; - - bigArraySystem = setupBuffer(ByteBuffer.allocateDirect(bufferSize)); - - float megabytes = (bufferSize / 1000000.f); - try { - bigArrayVar = setupBuffer(gl.glAllocateMemoryNV(bufferSize, 0, 0, priority)); - } - catch (OutOfMemoryError e1) { - // Try a higher priority - try { - bigArrayVar = setupBuffer(gl.glAllocateMemoryNV(bufferSize, 0, 0, 1.f)); - } - catch (OutOfMemoryError e2) { - if (!tryAgain) { - throw new RuntimeException("Unable to allocate " + megabytes + - " megabytes of fast memory. Giving up."); - } - - System.err.println("Unable to allocate " + megabytes + - " megabytes of fast memory. Trying less."); - bufferSize /= 2; - numBuffers /= 2; - allocateBigArray(gl, false); - return; - } - } - - 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() { - 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)); - } - } - } - - 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(); - } -} |