Mercurial > projects > dwt-mac
view dwt/opengl/GLCanvas.d @ 156:969e7de37c3d default tip
Fixes to get dwt to work with dmd and ldc
author | Jacob Carlborg <doob@me.com> |
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date | Wed, 08 Jul 2009 21:56:44 +0200 |
parents | 04928add86e6 |
children |
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/******************************************************************************* * Copyright (c) 2000, 2008 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation * * Port to the D programming language: * Jacob Carlborg <doob@me.com> *******************************************************************************/ module dwt.opengl.GLCanvas; import dwt.dwthelper.utils; import dwt.DWT; import dwt.DWTException; import dwt.internal.cocoa.NSOpenGLContext; import dwt.internal.cocoa.NSOpenGLPixelFormat; import dwt.internal.cocoa.NSOpenGLView; import dwt.internal.cocoa.OS; import dwt.widgets.Canvas; import dwt.widgets.Composite; import dwt.widgets.Event; import dwt.widgets.Listener; import dwt.internal.objc.cocoa.Cocoa; import dwt.opengl.GLData; /** * GLCanvas is a widget capable of displaying OpenGL content. * * @see GLData * @see <a href="http://www.eclipse.org/swt/snippets/#opengl">OpenGL snippets</a> * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> * * @since 3.2 */ public class GLCanvas : Canvas { NSOpenGLView glView; NSOpenGLPixelFormat pixelFormat; static const int MAX_ATTRIBUTES = 32; /** * Create a GLCanvas widget using the attributes described in the GLData * object provided. * * @param parent a composite widget * @param style the bitwise OR'ing of widget styles * @param data the requested attributes of the GLCanvas * * @exception IllegalArgumentException * <ul><li>ERROR_NULL_ARGUMENT when the data is null * <li>ERROR_UNSUPPORTED_DEPTH when the requested attributes cannot be provided</ul> * </ul> */ public this (Composite parent, int style, GLData data) { super (parent, style); if (data is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); int attrib [] = new int [MAX_ATTRIBUTES]; int pos = 0; //TODO use color options // attrib [pos++] = OS.AGL_RGBA; if (data.doubleBuffer) attrib [pos++] = OS.NSOpenGLPFADoubleBuffer; if (data.stereo) attrib [pos++] = OS.NSOpenGLPFAStereo; // if (data.redSize > 0) { // attrib [pos++] = OS.AGL_RED_SIZE; // attrib [pos++] = data.redSize; // } // if (data.greenSize > 0) { // attrib [pos++] = OS.AGL_GREEN_SIZE; // attrib [pos++] = data.greenSize; // } // if (data.blueSize > 0) { // attrib [pos++] = OS.AGL_BLUE_SIZE; // attrib [pos++] = data.blueSize; // } if (data.alphaSize > 0) { attrib [pos++] = OS.NSOpenGLPFAAlphaSize; attrib [pos++] = data.alphaSize; } if (data.depthSize > 0) { attrib [pos++] = OS.NSOpenGLPFADepthSize; attrib [pos++] = data.depthSize; } if (data.stencilSize > 0) { attrib [pos++] = OS.NSOpenGLPFAStencilSize; attrib [pos++] = data.stencilSize; } // if (data.accumRedSize > 0) { // attrib [pos++] = OS.AGL_ACCUM_RED_SIZE; // attrib [pos++] = data.accumRedSize; // } // if (data.accumGreenSize > 0) { // attrib [pos++] = OS.AGL_ACCUM_GREEN_SIZE; // attrib [pos++] = data.accumGreenSize; // } // if (data.accumBlueSize > 0) { // attrib [pos++] = OS.AGL_ACCUM_BLUE_SIZE; // attrib [pos++] = data.accumBlueSize; // } // if (data.accumAlphaSize > 0) { // attrib [pos++] = OS.AGL_ACCUM_ALPHA_SIZE; // attrib [pos++] = data.accumAlphaSize; // } if (data.sampleBuffers > 0) { attrib [pos++] = OS.NSOpenGLPFASampleBuffers; attrib [pos++] = data.sampleBuffers; } if (data.samples > 0) { attrib [pos++] = OS.NSOpenGLPFASamples; attrib [pos++] = data.samples; } attrib [pos++] = 0; pixelFormat = cast(NSOpenGLPixelFormat)(new NSOpenGLPixelFormat()).alloc(); if (pixelFormat is null) { dispose (); DWT.error (DWT.ERROR_UNSUPPORTED_DEPTH); } pixelFormat.initWithAttributes((cast(NSOpenGLPixelFormatAttribute[])attrib).ptr); glView = cast(NSOpenGLView)(new NSOpenGLView()).alloc(); if (glView is null) { dispose (); DWT.error (DWT.ERROR_UNSUPPORTED_DEPTH); } glView.initWithFrame(parent.view.bounds(), pixelFormat); glView.setAutoresizingMask(OS.NSViewWidthSizable | OS.NSViewHeightSizable); parent.view.addSubview(glView); Listener listener = new class (glView, pixelFormat) Listener { NSOpenGLView glView; NSOpenGLPixelFormat pixelFormat; this (NSOpenGLView glView, NSOpenGLPixelFormat pixelFormat) { this.glView = glView; this.pixelFormat = pixelFormat; } public void handleEvent (Event event) { switch (event.type) { case DWT.Dispose: if (glView !is null) { glView.clearGLContext(); glView.release(); } glView = null; if (pixelFormat !is null) pixelFormat.release(); pixelFormat = null; break; default: } } }; addListener (DWT.Dispose, listener); } /** * Returns a GLData object describing the created context. * * @return GLData description of the OpenGL context attributes * @exception DWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public GLData getGLData () { checkWidget (); GLData data = new GLData (); int [] value = new int [1]; //TODO implement getGLData() // AGL.aglDescribePixelFormat (pixelFormat, AGL.AGL_DOUBLEBUFFER, value); // data.doubleBuffer = value [0] !is 0; // AGL.aglDescribePixelFormat (pixelFormat, AGL.AGL_STEREO, value); // data.stereo = value [0] !is 0; // AGL.aglDescribePixelFormat (pixelFormat, AGL.AGL_RED_SIZE, value); // data.redSize = value [0]; // AGL.aglDescribePixelFormat (pixelFormat, AGL.AGL_GREEN_SIZE, value); // data.greenSize = value [0]; // AGL.aglDescribePixelFormat (pixelFormat, AGL.AGL_BLUE_SIZE, value); // data.blueSize = value [0]; // AGL.aglDescribePixelFormat (pixelFormat, AGL.AGL_ALPHA_SIZE, value); // data.alphaSize = value [0]; // AGL.aglDescribePixelFormat (pixelFormat, AGL.AGL_DEPTH_SIZE, value); // data.depthSize = value [0]; // AGL.aglDescribePixelFormat (pixelFormat, AGL.AGL_STENCIL_SIZE, value); // data.stencilSize = value [0]; // AGL.aglDescribePixelFormat (pixelFormat, AGL.AGL_ACCUM_RED_SIZE, value); // data.accumRedSize = value [0]; // AGL.aglDescribePixelFormat (pixelFormat, AGL.AGL_ACCUM_GREEN_SIZE, value); // data.accumGreenSize = value [0]; // AGL.aglDescribePixelFormat (pixelFormat, AGL.AGL_ACCUM_BLUE_SIZE, value); // data.accumBlueSize = value [0]; // AGL.aglDescribePixelFormat (pixelFormat, AGL.AGL_ACCUM_ALPHA_SIZE, value); // data.accumAlphaSize = value [0]; // AGL.aglDescribePixelFormat (pixelFormat, AGL.AGL_SAMPLE_BUFFERS_ARB, value); // data.sampleBuffers = value [0]; // AGL.aglDescribePixelFormat (pixelFormat, AGL.AGL_SAMPLES_ARB, value); data.samples = value [0]; return data; } /** * Returns a bool indicating whether the receiver's OpenGL context * is the current context. * * @return true if the receiver holds the current OpenGL context, * false otherwise * @exception DWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public bool isCurrent () { checkWidget (); return NSOpenGLContext.currentContext().id is glView.openGLContext().id; } /** * Sets the OpenGL context associated with this GLCanvas to be the * current GL context. * * @exception DWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public void setCurrent () { checkWidget (); glView.openGLContext().makeCurrentContext(); } /** * Swaps the front and back color buffers. * * @exception DWTException <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> * </ul> */ public void swapBuffers () { checkWidget (); glView.openGLContext().flushBuffer(); } }