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*/); }