public static void main(String[] args) {
final Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
Composite comp = new Composite(shell, SWT.NONE);
comp.setLayout(new FillLayout());
GLData data = new GLData();
data.doubleBuffer = true;
final GLCanvas canvas = new GLCanvas(comp, SWT.NONE, data);
canvas.setCurrent();
try {
GLContext.useContext(canvas);
} catch (LWJGLException e) {
e.printStackTrace();
}
canvas.addListener(
SWT.Resize,
event -> {
Rectangle bounds = canvas.getBounds();
float fAspect = (float) bounds.width / (float) bounds.height;
canvas.setCurrent();
try {
GLContext.useContext(canvas);
} catch (LWJGLException e) {
e.printStackTrace();
}
GL11.glViewport(0, 0, bounds.width, bounds.height);
GL11.glMatrixMode(GL11.GL_PROJECTION);
GL11.glLoadIdentity();
GLU.gluPerspective(45.0f, fAspect, 0.5f, 400.0f);
GL11.glMatrixMode(GL11.GL_MODELVIEW);
GL11.glLoadIdentity();
});
GL11.glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
GL11.glColor3f(1.0f, 0.0f, 0.0f);
GL11.glHint(GL11.GL_PERSPECTIVE_CORRECTION_HINT, GL11.GL_NICEST);
GL11.glClearDepth(1.0);
GL11.glLineWidth(2);
GL11.glEnable(GL11.GL_DEPTH_TEST);
shell.setText("SWT/LWJGL Example");
shell.setSize(640, 480);
shell.open();
final Runnable run =
new Runnable() {
int rot = 0;
@Override
public void run() {
if (!canvas.isDisposed()) {
canvas.setCurrent();
try {
GLContext.useContext(canvas);
} catch (LWJGLException e) {
e.printStackTrace();
}
GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
GL11.glClearColor(.3f, .5f, .8f, 1.0f);
GL11.glLoadIdentity();
GL11.glTranslatef(0.0f, 0.0f, -10.0f);
float frot = rot;
GL11.glRotatef(0.15f * rot, 2.0f * frot, 10.0f * frot, 1.0f);
GL11.glRotatef(0.3f * rot, 3.0f * frot, 1.0f * frot, 1.0f);
rot++;
GL11.glPolygonMode(GL11.GL_FRONT_AND_BACK, GL11.GL_LINE);
GL11.glColor3f(0.9f, 0.9f, 0.9f);
drawTorus(1, 1.9f + ((float) Math.sin((0.004f * frot))), 15, 15);
canvas.swapBuffers();
display.asyncExec(this);
}
}
};
canvas.addListener(SWT.Paint, event -> run.run());
display.asyncExec(run);
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep();
}
display.dispose();
}
private void displayDebugInfo(long l) {
long l1 = 0xfe502aL;
if (prevFrameTime == -1L) {
prevFrameTime = System.nanoTime();
}
long l2 = System.nanoTime();
tickTimes[numRecordedFrameTimes & frameTimes.length - 1] = l;
frameTimes[numRecordedFrameTimes++ & frameTimes.length - 1] = l2 - prevFrameTime;
prevFrameTime = l2;
GL11.glClear(256);
GL11.glMatrixMode(5889 /*GL_PROJECTION*/);
GL11.glLoadIdentity();
GL11.glOrtho(0.0D, displayWidth, displayHeight, 0.0D, 1000D, 3000D);
GL11.glMatrixMode(5888 /*GL_MODELVIEW0_ARB*/);
GL11.glLoadIdentity();
GL11.glTranslatef(0.0F, 0.0F, -2000F);
GL11.glLineWidth(1.0F);
GL11.glDisable(3553 /*GL_TEXTURE_2D*/);
Tessellator tessellator = Tessellator.instance;
tessellator.startDrawing(7);
int i = (int) (l1 / 0x30d40L);
tessellator.setColorOpaque_I(0x20000000);
tessellator.addVertex(0.0D, displayHeight - i, 0.0D);
tessellator.addVertex(0.0D, displayHeight, 0.0D);
tessellator.addVertex(frameTimes.length, displayHeight, 0.0D);
tessellator.addVertex(frameTimes.length, displayHeight - i, 0.0D);
tessellator.setColorOpaque_I(0x20200000);
tessellator.addVertex(0.0D, displayHeight - i * 2, 0.0D);
tessellator.addVertex(0.0D, displayHeight - i, 0.0D);
tessellator.addVertex(frameTimes.length, displayHeight - i, 0.0D);
tessellator.addVertex(frameTimes.length, displayHeight - i * 2, 0.0D);
tessellator.draw();
long l3 = 0L;
for (int j = 0; j < frameTimes.length; j++) {
l3 += frameTimes[j];
}
int k = (int) (l3 / 0x30d40L / (long) frameTimes.length);
tessellator.startDrawing(7);
tessellator.setColorOpaque_I(0x20400000);
tessellator.addVertex(0.0D, displayHeight - k, 0.0D);
tessellator.addVertex(0.0D, displayHeight, 0.0D);
tessellator.addVertex(frameTimes.length, displayHeight, 0.0D);
tessellator.addVertex(frameTimes.length, displayHeight - k, 0.0D);
tessellator.draw();
tessellator.startDrawing(1);
for (int i1 = 0; i1 < frameTimes.length; i1++) {
int j1 = ((i1 - numRecordedFrameTimes & frameTimes.length - 1) * 255) / frameTimes.length;
int k1 = (j1 * j1) / 255;
k1 = (k1 * k1) / 255;
int i2 = (k1 * k1) / 255;
i2 = (i2 * i2) / 255;
if (frameTimes[i1] > l1) {
tessellator.setColorOpaque_I(0xff000000 + k1 * 0x10000);
} else {
tessellator.setColorOpaque_I(0xff000000 + k1 * 256);
}
long l4 = frameTimes[i1] / 0x30d40L;
long l5 = tickTimes[i1] / 0x30d40L;
tessellator.addVertex((float) i1 + 0.5F, (float) ((long) displayHeight - l4) + 0.5F, 0.0D);
tessellator.addVertex((float) i1 + 0.5F, (float) displayHeight + 0.5F, 0.0D);
tessellator.setColorOpaque_I(0xff000000 + k1 * 0x10000 + k1 * 256 + k1 * 1);
tessellator.addVertex((float) i1 + 0.5F, (float) ((long) displayHeight - l4) + 0.5F, 0.0D);
tessellator.addVertex(
(float) i1 + 0.5F, (float) ((long) displayHeight - (l4 - l5)) + 0.5F, 0.0D);
}
tessellator.draw();
GL11.glEnable(3553 /*GL_TEXTURE_2D*/);
}