/*
* Copyright (c) 2002-2008 LWJGL Project
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* * Redistributions in binary form must reproduce the above copyright
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* documentation and/or other materials provided with the distribution.
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* 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
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package org.lwjgl.test.opengl;
import org.lwjgl.LWJGLException;
import org.lwjgl.Sys;
import org.lwjgl.opengl.*;
import java.util.Random;
import static org.lwjgl.opengl.GL11.*;
import static org.lwjgl.opengl.GL32.*;
/** @author spasi <spasi@users.sourceforge.net> */
public final class SyncTest {
private SyncTest() {
}
public static void main(String[] args) {
runTest(args);
cleanup();
System.exit(0);
}
private static void runTest(String[] args) {
if ( args.length < 2 )
argsError("Insufficient number of arguments.");
int clears = 1;
int timeout = 0;
try {
clears = Integer.parseInt(args[0]);
timeout = Integer.parseInt(args[1]);
} catch (NumberFormatException e) {
argsError("Invalid number format.");
}
ContextAttribs ca = new ContextAttribs();
try {
DisplayMode[] modes = Display.getAvailableDisplayModes();
DisplayMode displayMode = chooseMode(modes, 1024, 768);
if ( displayMode == null )
displayMode = chooseMode(modes, 800, 600);
if ( displayMode == null )
displayMode = chooseMode(modes, 640, 480);
if ( displayMode == null )
kill("Failed to set an appropriate display mode.");
System.out.println("Setting display mode to: " + displayMode);
Display.setDisplayMode(displayMode);
Display.create(new PixelFormat(8, 24, 0), ca);
} catch (LWJGLException e) {
kill(e.getMessage());
}
System.out.println("\n---------\n");
final String version = glGetString(GL_VERSION);
System.out.println("GL Version: " + version);
System.out.println("ARB_sync: " + GLContext.getCapabilities().GL_ARB_sync);
if ( !GLContext.getCapabilities().OpenGL32 && !GLContext.getCapabilities().GL_ARB_sync )
kill("OpenGL3.2 or ARB_sync support is required for this test.");
System.out.println("\n---------\n");
System.out.println("Clearing the framebuffer a gazillion times...");
Random rand = new Random(System.currentTimeMillis());
for ( int i = 0; i < clears; i++ ) {
glClearColor(rand.nextFloat(), rand.nextFloat(), rand.nextFloat(), 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
}
GLSync sync = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
System.out.println("\nWaiting on fence...");
long time = Sys.getTime();
int status = glClientWaitSync(sync, 0, timeout < 0 ? GL_TIMEOUT_IGNORED : timeout * 1000 * 1000);
System.out.println("\nFence sync complete after: " + ((Sys.getTime() - time) / (double)Sys.getTimerResolution()) + " seconds.");
System.out.print("\nWait Status: ");
switch ( status ) {
case GL_ALREADY_SIGNALED:
System.out.println("ALREADY_SIGNALED");
break;
case GL_CONDITION_SATISFIED:
System.out.println("CONDITION_SATISFIED");
break;
case GL_TIMEOUT_EXPIRED:
System.out.println("TIMEOUT_EXPIRED");
break;
case GL_WAIT_FAILED:
System.out.println("WAIT_FAILED");
break;
default:
System.out.println("Unexpected wait status: 0x" + Integer.toHexString(status));
}
System.out.println("Sync Status: " + (glGetSync(sync, GL_SYNC_STATUS) == GL_UNSIGNALED ? "UNSIGNALED" : "SIGNALED"));
glDeleteSync(sync);
int error = glGetError();
if ( error != 0 )
System.out.println("\nTest failed with OpenGL error: " + error);
else
System.out.println("\nTest completed successfully.");
}
private static DisplayMode chooseMode(DisplayMode[] modes, int width, int height) {
DisplayMode bestMode = null;
for ( DisplayMode mode : modes ) {
if ( mode.getWidth() == width && mode.getHeight() == height && mode.getFrequency() <= 85 ) {
if ( bestMode == null || (mode.getBitsPerPixel() >= bestMode.getBitsPerPixel() && mode.getFrequency() > bestMode.getFrequency()) )
bestMode = mode;
}
}
return bestMode;
}
private static void cleanup() {
if ( Display.isCreated() )
Display.destroy();
}
private static void argsError(final String msg) {
System.out.println("\nInvalid arguments error: " + msg);
System.out.println("\nUsage: SyncTest <clears> <timeout>:\n");
System.out.println("clears\t- Number of times to clear the framebuffer.");
System.out.println("timeout\t- WaitSync timeout in milliseconds.");
cleanup();
System.exit(-1);
}
static void kill(String reason) {
System.out.println("The SyncTest program was terminated because an error occured.\n");
System.out.println("Reason: " + (reason == null ? "Unknown" : reason));
cleanup();
System.exit(-1);
}
}