/* * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * - Redistribution of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistribution in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of Sun Microsystems, Inc. or the names of * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * This software is provided "AS IS," without a warranty of any kind. ALL * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. * * You acknowledge that this software is not designed or intended for use * in the design, construction, operation or maintenance of any nuclear * facility. * * Sun gratefully acknowledges that this software was originally authored * and developed by Kenneth Bradley Russell and Christopher John Kline. */ package net.java.games.jogl.impl.macosx; import java.awt.Component; import java.util.*; import net.java.games.gluegen.runtime.*; // for PROCADDRESS_VAR_PREFIX import net.java.games.jogl.*; import net.java.games.jogl.impl.*; public abstract class MacOSXGLContext extends GLContextImpl { protected MacOSXGLDrawable drawable; protected long nsContext; // NSOpenGLContext // Table that holds the addresses of the native C-language entry points for // OpenGL functions. private GLProcAddressTable glProcAddressTable; public MacOSXGLContext(MacOSXGLDrawable drawable, GLContext shareWith) { super(shareWith); this.drawable = drawable; } protected GL createGL() { return new MacOSXGLImpl(this); } protected String mapToRealGLFunctionName(String glFunctionName) { return glFunctionName; } protected String mapToRealGLExtensionName(String glExtensionName) { return glExtensionName; } protected boolean create() { return create(false, false); } /** * Creates and initializes an appropriate OpenGl nsContext. Should only be * called by {@link makeCurrentImpl()}. */ protected boolean create(boolean pbuffer, boolean floatingPoint) { MacOSXGLContext other = (MacOSXGLContext) GLContextShareSet.getShareContext(this); long share = 0; if (other != null) { share = other.getNSContext(); if (share == 0) { throw new GLException("GLContextShareSet returned an invalid OpenGL context"); } } int[] viewNotReady = new int[1]; GLCapabilities capabilities = drawable.getCapabilities(); nsContext = CGL.createContext(share, drawable.getView(), capabilities.getDoubleBuffered() ? 1 : 0, capabilities.getStereo() ? 1 : 0, capabilities.getRedBits(), capabilities.getGreenBits(), capabilities.getBlueBits(), capabilities.getAlphaBits(), capabilities.getDepthBits(), capabilities.getStencilBits(), capabilities.getAccumRedBits(), capabilities.getAccumGreenBits(), capabilities.getAccumBlueBits(), capabilities.getAccumAlphaBits(), capabilities.getSampleBuffers() ? 1 : 0, capabilities.getNumSamples(), (pbuffer ? 1 : 0), (floatingPoint ? 1 : 0), viewNotReady, 0); if (nsContext == 0) { if (viewNotReady[0] == 1) { if (DEBUG) { System.err.println("!!! View not ready for " + getClass().getName()); } // View not ready at the window system level -- this is OK return false; } throw new GLException("Error creating nsContext"); } GLContextShareSet.contextCreated(this); return true; } protected int makeCurrentImpl() throws GLException { boolean created = false; if (nsContext == 0) { if (!create()) { return CONTEXT_NOT_CURRENT; } if (DEBUG) { System.err.println("!!! Created GL nsContext for " + getClass().getName()); } created = true; } if (!CGL.makeCurrentContext(nsContext, drawable.getView())) { throw new GLException("Error making nsContext current"); } if (created) { resetGLFunctionAvailability(); return CONTEXT_CURRENT_NEW; } return CONTEXT_CURRENT; } protected void releaseImpl() throws GLException { if (!CGL.clearCurrentContext(nsContext, drawable.getView())) { throw new GLException("Error freeing OpenGL nsContext"); } } protected void destroyImpl() throws GLException { if (nsContext != 0) { if (!CGL.deleteContext(nsContext, 0)) { throw new GLException("Unable to delete OpenGL context"); } if (DEBUG) { System.err.println("!!! Destroyed OpenGL context " + nsContext); } nsContext = 0; GLContextShareSet.contextDestroyed(this); } } protected long dynamicLookupFunction(String glFuncName) { return CGL.getProcAddress(glFuncName); } public boolean isCreated() { return (nsContext != 0); } protected void resetGLFunctionAvailability() { super.resetGLFunctionAvailability(); if (DEBUG) { System.err.println("!!! Initializing OpenGL extension address table"); } resetProcAddressTable(getGLProcAddressTable()); } public GLProcAddressTable getGLProcAddressTable() { if (glProcAddressTable == null) { // FIXME: cache ProcAddressTables by capability bits so we can // share them among contexts with the same capabilities glProcAddressTable = new GLProcAddressTable(); } return glProcAddressTable; } public String getPlatformExtensionsString() { return ""; } public void setSwapInterval(int interval) { if (nsContext == 0) { throw new GLException("OpenGL context not current"); } CGL.setSwapInterval(nsContext, interval); } protected boolean isFunctionAvailable(String glFunctionName) { return super.isFunctionAvailable(glFunctionName); } public boolean isExtensionAvailable(String glExtensionName) { if (glExtensionName.equals("GL_ARB_pbuffer") || glExtensionName.equals("GL_ARB_pixel_format")) { return true; } return super.isExtensionAvailable(glExtensionName); } public int getOffscreenContextPixelDataType() { throw new GLException("Should not call this"); } public int getOffscreenContextReadBuffer() { throw new GLException("Should not call this"); } public boolean offscreenImageNeedsVerticalFlip() { throw new GLException("Should not call this"); } public boolean canCreatePbufferContext() { return false; } public GLDrawableImpl createPbufferDrawable(GLCapabilities capabilities, int initialWidth, int initialHeight) { throw new GLException("Not supported"); } public void bindPbufferToTexture() { throw new GLException("Should not call this"); } public void releasePbufferFromTexture() { throw new GLException("Should not call this"); } //---------------------------------------------------------------------- // Internals only below this point // protected long getNSContext() { return nsContext; } }