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Java™ Binding for the OpenGL® API
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/*
* Copyright (c) 2008 Sun Microsystems, Inc. All Rights Reserved.
* Copyright (c) 2010 JogAmp Community. 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.
*/
package jogamp.opengl.windows.wgl;
import com.jogamp.nativewindow.AbstractGraphicsConfiguration;
import com.jogamp.nativewindow.AbstractGraphicsDevice;
import com.jogamp.nativewindow.AbstractGraphicsScreen;
import com.jogamp.nativewindow.CapabilitiesChooser;
import com.jogamp.nativewindow.DefaultGraphicsScreen;
import com.jogamp.nativewindow.GraphicsConfigurationFactory;
import com.jogamp.nativewindow.CapabilitiesImmutable;
import com.jogamp.nativewindow.NativeSurface;
import com.jogamp.nativewindow.NativeWindowFactory;
import com.jogamp.nativewindow.ProxySurface;
import com.jogamp.nativewindow.VisualIDHolder;
import com.jogamp.opengl.GLCapabilitiesImmutable;
import com.jogamp.opengl.GLCapabilitiesChooser;
import com.jogamp.opengl.GLContext;
import com.jogamp.opengl.GLDrawableFactory;
import com.jogamp.opengl.GLException;
import com.jogamp.opengl.GLProfile;
import com.jogamp.common.ExceptionUtils;
import com.jogamp.common.nio.Buffers;
import com.jogamp.opengl.GLRendererQuirks;
import jogamp.nativewindow.windows.GDI;
import jogamp.nativewindow.windows.GDIUtil;
import jogamp.nativewindow.windows.PIXELFORMATDESCRIPTOR;
import jogamp.opengl.GLDrawableImpl;
import jogamp.opengl.GLGraphicsConfigurationFactory;
import jogamp.opengl.GLGraphicsConfigurationUtil;
import java.nio.FloatBuffer;
import java.nio.IntBuffer;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/** Subclass of GraphicsConfigurationFactory used when non-AWT tookits
are used on Windows platforms. Toolkits will likely need to delegate
to this one to change the accepted and returned types of the
GraphicsDevice and GraphicsConfiguration abstractions. */
public class WindowsWGLGraphicsConfigurationFactory extends GLGraphicsConfigurationFactory {
static VisualIDHolder.VIDComparator PfdIDComparator = new VisualIDHolder.VIDComparator(VisualIDHolder.VIDType.WIN32_PFD);
static void registerFactory() {
GraphicsConfigurationFactory.registerFactory(com.jogamp.nativewindow.windows.WindowsGraphicsDevice.class,
GLCapabilitiesImmutable.class, new WindowsWGLGraphicsConfigurationFactory());
}
private WindowsWGLGraphicsConfigurationFactory() {
}
@Override
protected AbstractGraphicsConfiguration chooseGraphicsConfigurationImpl(
final CapabilitiesImmutable capsChosen, final CapabilitiesImmutable capsRequested, final CapabilitiesChooser chooser,
final AbstractGraphicsScreen absScreen, final int nativeVisualID)
{
if (! (capsChosen instanceof GLCapabilitiesImmutable) ) {
throw new IllegalArgumentException("This NativeWindowFactory accepts only GLCapabilities objects - chosen");
}
if (! (capsRequested instanceof GLCapabilitiesImmutable) ) {
throw new IllegalArgumentException("This NativeWindowFactory accepts only GLCapabilities objects - requested");
}
if (chooser != null && !(chooser instanceof GLCapabilitiesChooser)) {
throw new IllegalArgumentException("This NativeWindowFactory accepts only GLCapabilitiesChooser objects");
}
return chooseGraphicsConfigurationStatic(
(GLCapabilitiesImmutable)capsChosen, (GLCapabilitiesImmutable)capsRequested, (GLCapabilitiesChooser)chooser, absScreen);
}
static WindowsWGLGraphicsConfiguration createDefaultGraphicsConfiguration(final GLCapabilitiesImmutable caps,
final AbstractGraphicsScreen absScreen) {
return chooseGraphicsConfigurationStatic(caps, caps, null, absScreen);
}
static WindowsWGLGraphicsConfiguration chooseGraphicsConfigurationStatic(GLCapabilitiesImmutable capsChosen,
final GLCapabilitiesImmutable capsReq,
final GLCapabilitiesChooser chooser,
AbstractGraphicsScreen absScreen) {
if(null==absScreen) {
absScreen = DefaultGraphicsScreen.createDefault(NativeWindowFactory.TYPE_WINDOWS);
}
final AbstractGraphicsDevice absDevice = absScreen.getDevice();
capsChosen = GLGraphicsConfigurationUtil.fixGLCapabilities( capsChosen, GLDrawableFactory.getDesktopFactory(), absDevice);
return new WindowsWGLGraphicsConfiguration( absScreen, capsChosen, capsReq, chooser );
}
protected static List getAvailableCapabilities(final WindowsWGLDrawableFactory factory,
final AbstractGraphicsDevice device) {
final WindowsWGLDrawableFactory.SharedResource sharedResource = factory.getOrCreateSharedResourceImpl(device);
if(null == sharedResource) {
throw new GLException("Shared resource for device n/a: "+device);
}
final GLDrawableImpl sharedDrawable = sharedResource.getDrawable();
final GLProfile glp = GLProfile.getDefault(device);
List availableCaps = null;
final GLContext sharedContext;
if ( factory.hasRendererQuirk(device, null, GLRendererQuirks.NeedCurrCtx4ARBPixFmtQueries) ) {
sharedContext = sharedResource.getContext();
if(GLContext.CONTEXT_NOT_CURRENT == sharedContext.makeCurrent()) {
throw new GLException("Could not make Shared Context current: "+device);
}
} else {
sharedContext = null;
sharedDrawable.lockSurface();
}
try {
final long hdc = sharedDrawable.getHandle();
if (0 == hdc) {
throw new GLException("Error: HDC is null");
}
if (sharedResource.hasARBPixelFormat()) {
availableCaps = WindowsWGLGraphicsConfigurationFactory.getAvailableGLCapabilitiesARB(
sharedResource, sharedResource.getDevice(), glp, hdc);
}
final boolean hasARBCaps = null != availableCaps && !availableCaps.isEmpty() ;
final List availableCapsGDI = getAvailableGLCapabilitiesGDI(device, glp, hdc, hasARBCaps);
if( !hasARBCaps ) {
availableCaps = availableCapsGDI;
} else {
availableCaps.addAll(availableCapsGDI);
}
} finally {
if ( null != sharedContext ) {
sharedContext.release();
} else {
sharedDrawable.unlockSurface();
}
}
if( null != availableCaps && availableCaps.size() > 1 ) {
Collections.sort(availableCaps, PfdIDComparator);
}
return availableCaps;
}
private static List getAvailableGLCapabilitiesARB(
final WindowsWGLDrawableFactory.SharedResource sharedResource,
final AbstractGraphicsDevice device, final GLProfile glProfile, final long hdc)
{
final int pfdIDCount = WindowsWGLGraphicsConfiguration.wglARBPFDIDCount((WindowsWGLContext)sharedResource.getContext(), hdc);
final int[] pformats = WindowsWGLGraphicsConfiguration.wglAllARBPFDIDs(pfdIDCount);
return WindowsWGLGraphicsConfiguration.wglARBPFIDs2GLCapabilities(sharedResource, device, glProfile, hdc, pformats,
GLGraphicsConfigurationUtil.ALL_BITS & ~GLGraphicsConfigurationUtil.BITMAP_BIT, false); // w/o BITMAP
}
private static List getAvailableGLCapabilitiesGDI(
final AbstractGraphicsDevice device, final GLProfile glProfile, final long hdc, final boolean bitmapOnly)
{
final int[] pformats = WindowsWGLGraphicsConfiguration.wglAllGDIPFIDs(hdc);
final int numFormats = pformats.length;
final List bucket = new ArrayList(numFormats);
for (int i = 0; i < numFormats; i++) {
final GLCapabilitiesImmutable caps = WindowsWGLGraphicsConfiguration.PFD2GLCapabilities(device, glProfile, hdc, pformats[i],
bitmapOnly ? GLGraphicsConfigurationUtil.BITMAP_BIT : GLGraphicsConfigurationUtil.ALL_BITS );
if(null != caps) {
bucket.add(caps);
}
}
return bucket;
}
/**
*
* @param chooser
* @param _factory
* @param ns
* @param pfIDs optional pool of preselected PixelFormat IDs, maybe null for unrestricted selection
*/
static void updateGraphicsConfiguration(final CapabilitiesChooser chooser,
final GLDrawableFactory factory, final NativeSurface ns, final int[] pfdIDs) {
if (chooser != null && !(chooser instanceof GLCapabilitiesChooser)) {
throw new IllegalArgumentException("This NativeWindowFactory accepts only GLCapabilitiesChooser objects");
}
if (factory == null) {
throw new IllegalArgumentException("GLDrawableFactory is null");
}
if (ns == null) {
throw new IllegalArgumentException("NativeSurface is null");
}
if(NativeSurface.LOCK_SURFACE_NOT_READY >= ns.lockSurface()) {
throw new GLException("Surface not ready (lockSurface)");
}
try {
final long hdc = ns.getSurfaceHandle();
if (0 == hdc) {
if( !(ns instanceof ProxySurface) ||
!((ProxySurface)ns).containsUpstreamOptionBits( ProxySurface.OPT_UPSTREAM_SURFACELESS ) ) {
throw new GLException(String.format("non-surfaceless drawable has zero-handle (HDC): %s", ns.toString()));
}
return; // NOP .. will reach ns.unlockSurface()
}
final WindowsWGLGraphicsConfiguration config = (WindowsWGLGraphicsConfiguration) ns.getGraphicsConfiguration();
if( !config.isExternal() ) {
if( !config.isDetermined() ) {
updateGraphicsConfiguration(config, chooser, factory, hdc, false, pfdIDs);
} else {
// set PFD if not set yet
int pfdID = -1;
boolean set = false;
if ( 1 > ( pfdID = WGLUtil.GetPixelFormat(hdc) ) ) {
if (!WGLUtil.SetPixelFormat(hdc, config.getPixelFormatID(), config.getPixelFormat())) {
throw new GLException("Unable to set pixel format " + config.getPixelFormatID() +
" for device context " + toHexString(hdc) +
": error code " + GDI.GetLastError());
}
set = true;
}
if (DEBUG) {
System.err.println("setPixelFormat (post): hdc "+toHexString(hdc) +", "+pfdID+" -> "+config.getPixelFormatID()+", set: "+set);
}
}
}
} finally {
ns.unlockSurface();
}
}
static void preselectGraphicsConfiguration(final CapabilitiesChooser chooser,
final GLDrawableFactory _factory, final AbstractGraphicsDevice device,
final WindowsWGLGraphicsConfiguration config, final int[] pfdIDs) {
if (chooser != null && !(chooser instanceof GLCapabilitiesChooser)) {
throw new IllegalArgumentException("This NativeWindowFactory accepts only GLCapabilitiesChooser objects");
}
if (_factory == null) {
throw new IllegalArgumentException("GLDrawableFactory is null");
}
if (config == null) {
throw new IllegalArgumentException("WindowsWGLGraphicsConfiguration is null");
}
if ( !(_factory instanceof WindowsWGLDrawableFactory) ) {
throw new GLException("GLDrawableFactory is not a WindowsWGLDrawableFactory, but: "+_factory.getClass().getSimpleName());
}
final WindowsWGLDrawableFactory factory = (WindowsWGLDrawableFactory) _factory;
final WindowsWGLDrawable sharedDrawable = factory.getOrCreateSharedDrawable(device);
if(null == sharedDrawable) {
throw new IllegalArgumentException("Shared Drawable is null");
}
if(NativeSurface.LOCK_SURFACE_NOT_READY >= sharedDrawable.lockSurface()) {
throw new GLException("Shared Surface not ready (lockSurface): "+device+" -> "+sharedDrawable);
}
try {
final long hdc = sharedDrawable.getHandle();
if (0 == hdc) {
throw new GLException("Error: HDC is null");
}
updateGraphicsConfiguration(config, chooser, factory, hdc, true, pfdIDs);
} finally {
sharedDrawable.unlockSurface();
}
}
private static void updateGraphicsConfiguration(final WindowsWGLGraphicsConfiguration config, final CapabilitiesChooser chooser,
final GLDrawableFactory factory, final long hdc, final boolean extHDC,
final int[] pfdIDs) {
if (DEBUG) {
if(extHDC) {
System.err.println("updateGraphicsConfiguration(using shared): hdc "+toHexString(hdc));
} else {
System.err.println("updateGraphicsConfiguration(using target): hdc "+toHexString(hdc));
}
System.err.println("user chosen caps " + config.getChosenCapabilities());
}
final AbstractGraphicsDevice device = config.getScreen().getDevice();
final WindowsWGLDrawableFactory.SharedResource sharedResource = ((WindowsWGLDrawableFactory)factory).getOrCreateSharedResourceImpl(device);
final GLContext sharedContext;
if ( factory.hasRendererQuirk(device, null, GLRendererQuirks.NeedCurrCtx4ARBPixFmtQueries) ) {
sharedContext = sharedResource.getContext();
if(GLContext.CONTEXT_NOT_CURRENT == sharedContext.makeCurrent()) {
throw new GLException("Could not make Shared Context current: "+device);
}
} else {
sharedContext = null;
}
try {
final GLCapabilitiesImmutable capsChosen = (GLCapabilitiesImmutable) config.getChosenCapabilities();
boolean done = false;
if( capsChosen.getHardwareAccelerated() && !capsChosen.isBitmap() ) {
done = updateGraphicsConfigurationARB((WindowsWGLDrawableFactory)factory, config, chooser, hdc, extHDC, pfdIDs);
}
if( !done ) {
updateGraphicsConfigurationGDI(config, chooser, hdc, extHDC, pfdIDs);
}
} finally {
if (null != sharedContext) {
sharedContext.release();
}
}
}
private static boolean updateGraphicsConfigurationARB(final WindowsWGLDrawableFactory factory,
final WindowsWGLGraphicsConfiguration config, final CapabilitiesChooser chooser,
final long hdc, final boolean extHDC, int[] pformats) {
final AbstractGraphicsDevice device = config.getScreen().getDevice();
final WindowsWGLDrawableFactory.SharedResource sharedResource = factory.getOrCreateSharedResourceImpl(device);
if (null == sharedResource) {
if (DEBUG) {
System.err.println("updateGraphicsConfigurationARB: SharedResource is null: "+device);
}
return false;
}
if (!sharedResource.hasARBPixelFormat()) {
if (DEBUG) {
System.err.println("updateGraphicsConfigurationARB: "+WindowsWGLDrawableFactory.WGL_ARB_pixel_format+" not available");
}
return false;
}
final GLCapabilitiesImmutable capsChosen = (GLCapabilitiesImmutable) config.getChosenCapabilities();
final boolean isOpaque = capsChosen.isBackgroundOpaque() && GDIUtil.DwmIsCompositionEnabled();
final int winattrbits = GLGraphicsConfigurationUtil.getExclusiveWinAttributeBits(capsChosen)
& ~GLGraphicsConfigurationUtil.BITMAP_BIT; // w/o BITMAP
final GLProfile glProfile = capsChosen.getGLProfile();
final int pfdIDCount = WindowsWGLGraphicsConfiguration.wglARBPFDIDCount((WindowsWGLContext)sharedResource.getContext(), hdc);
if(DEBUG) {
System.err.println("updateGraphicsConfigurationARB: hdc "+toHexString(hdc)+", pfdIDCount(hdc) "+pfdIDCount+", capsChosen "+capsChosen+", "+GLGraphicsConfigurationUtil.winAttributeBits2String(null, winattrbits).toString());
System.err.println("\tisOpaque "+isOpaque+" (translucency requested: "+(!capsChosen.isBackgroundOpaque())+", compositioning enabled: "+GDIUtil.DwmIsCompositionEnabled()+")");
final int pformatsNum = null != pformats ? pformats.length : -1;
System.err.println("\textHDC "+extHDC+", chooser "+(null!=chooser)+", pformatsNum "+pformatsNum);
}
if(0 >= pfdIDCount) {
if (DEBUG) {
System.err.println("updateGraphicsConfigurationARB: failed due to 0 pfdIDs for hdc "+toHexString(hdc)+" - hdc incompatible w/ ARB ext.");
}
return false;
}
WGLGLCapabilities pixelFormatCaps = null; // chosen or preset PFD ID's caps
boolean pixelFormatSet = false; // indicates a preset PFD ID [caps]
final int presetPFDID = extHDC ? -1 : WGLUtil.GetPixelFormat(hdc) ;
if ( 1 <= presetPFDID ) {
// Pixelformat already set by either
// - a previous preselectGraphicsConfiguration() call on the same HDC,
// - the graphics driver, copying the HDC's pixelformat to the new one,
// - or the Java2D/OpenGL pipeline's configuration
if (DEBUG) {
System.err.println("updateGraphicsConfigurationARB: Pixel format already chosen for HDC: " + toHexString(hdc)
+ ", pixelformat " + presetPFDID);
}
pixelFormatSet = true;
pixelFormatCaps = WindowsWGLGraphicsConfiguration.wglARBPFID2GLCapabilities(sharedResource, device, glProfile,
hdc, presetPFDID, winattrbits);
pixelFormatCaps = (WGLGLCapabilities) GLGraphicsConfigurationUtil.fixOpaqueGLCapabilities(pixelFormatCaps, isOpaque);
} else {
int recommendedIndex = -1; // recommended index
if(null == pformats) {
// No given PFD IDs
//
// 1st choice: get GLCapabilities based on users GLCapabilities setting recommendedIndex as preferred choice
final IntBuffer iattributes = Buffers.newDirectIntBuffer(2*WindowsWGLGraphicsConfiguration.MAX_ATTRIBS);
final FloatBuffer fattributes = Buffers.newDirectFloatBuffer(1);
int accelerationMode = WGLExt.WGL_FULL_ACCELERATION_ARB;
pformats = WindowsWGLGraphicsConfiguration.wglChoosePixelFormatARB(sharedResource, device, capsChosen,
hdc, iattributes, accelerationMode, fattributes);
if (null == pformats) {
accelerationMode = WGLExt.WGL_GENERIC_ACCELERATION_ARB;
pformats = WindowsWGLGraphicsConfiguration.wglChoosePixelFormatARB(sharedResource, device, capsChosen,
hdc, iattributes, accelerationMode, fattributes);
}
if (null == pformats) {
accelerationMode = -1; // use what we are offered ..
pformats = WindowsWGLGraphicsConfiguration.wglChoosePixelFormatARB(sharedResource, device, capsChosen,
hdc, iattributes, accelerationMode, fattributes);
}
if (null != pformats) {
recommendedIndex = 0;
} else {
if(DEBUG) {
System.err.println("updateGraphicsConfigurationARB: wglChoosePixelFormatARB failed with: "+capsChosen);
}
// 2nd choice: get all GLCapabilities available, no preferred recommendedIndex available
pformats = WindowsWGLGraphicsConfiguration.wglAllARBPFDIDs(pfdIDCount);
if (DEBUG) {
final int len = ( null != pformats ) ? pformats.length : 0;
System.err.println("updateGraphicsConfigurationARB: NumFormats (wglAllARBPFIDs) " + len);
}
}
if (null == pformats) {
if (DEBUG) {
System.err.println("updateGraphicsConfigurationARB: failed, return false");
ExceptionUtils.dumpStack(System.err);
}
return false;
}
}
final boolean skipCapsChooser = 0 <= recommendedIndex && null == chooser && capsChosen.isBackgroundOpaque(); // fast path: skip choosing if using recommended idx and null chooser is used and if not translucent
final List availableCaps =
WindowsWGLGraphicsConfiguration.wglARBPFIDs2GLCapabilities(sharedResource, device, glProfile,
hdc, pformats, winattrbits, skipCapsChooser /* onlyFirstValid */);
if( null == availableCaps || 0 == availableCaps.size() ) {
if (DEBUG) {
System.err.println("updateGraphicsConfigurationARB: wglARBPFIDs2GLCapabilities failed with " + pformats.length + " pfd ids");
ExceptionUtils.dumpStack(System.err);
}
return false;
}
if (DEBUG) {
System.err.println("updateGraphicsConfigurationARB: " + pformats.length +
" pfd ids, skipCapsChooser " + skipCapsChooser + ", " + GLGraphicsConfigurationUtil.winAttributeBits2String(null, winattrbits).toString() + ", " + availableCaps.size() + " glcaps");
if(0 <= recommendedIndex) {
System.err.println("updateGraphicsConfigurationARB: Used wglChoosePixelFormatARB to recommend pixel format " +
pformats[recommendedIndex] + ", idx " + recommendedIndex +", "+availableCaps.get(recommendedIndex));
}
}
final int chosenIndex;
if( skipCapsChooser ) {
chosenIndex = recommendedIndex;
} else {
chosenIndex = chooseCapabilities(chooser, capsChosen, availableCaps, recommendedIndex);
}
if ( 0 > chosenIndex ) {
if (DEBUG) {
ExceptionUtils.dumpStack(System.err);
}
return false;
}
pixelFormatCaps = (WGLGLCapabilities) availableCaps.get(chosenIndex);
if( null == pixelFormatCaps) {
throw new GLException("Null Capabilities with "+
" chosen pfdID: native recommended "+ (recommendedIndex+1) +
" chosen idx "+chosenIndex+", skipCapsChooser "+skipCapsChooser);
}
pixelFormatCaps = (WGLGLCapabilities) GLGraphicsConfigurationUtil.fixOpaqueGLCapabilities(pixelFormatCaps, isOpaque);
if (DEBUG) {
System.err.println("chosen pfdID (ARB): native recommended "+ (recommendedIndex+1) +
" chosen "+pixelFormatCaps+", skipCapsChooser "+skipCapsChooser);
}
}
if ( !extHDC && !pixelFormatSet ) {
config.setPixelFormat(hdc, pixelFormatCaps);
} else {
config.setCapsPFD(pixelFormatCaps);
}
return true;
}
private static boolean updateGraphicsConfigurationGDI(final WindowsWGLGraphicsConfiguration config, final CapabilitiesChooser chooser,
final long hdc, final boolean extHDC, int[] pformats) {
final GLCapabilitiesImmutable capsChosen = (GLCapabilitiesImmutable) config.getChosenCapabilities();
if( !capsChosen.isOnscreen() && capsChosen.isPBuffer() ) {
if (DEBUG) {
System.err.println("updateGraphicsConfigurationGDI: no pbuffer supported on GDI: " + capsChosen);
}
return false;
}
// final boolean onscreen = capsChosen.isOnscreen();
// final boolean useFBO = capsChosen.isFBO();
final GLProfile glProfile = capsChosen.getGLProfile();
final int winattrmask = GLGraphicsConfigurationUtil.getExclusiveWinAttributeBits(capsChosen);
if(DEBUG) {
System.err.println("updateGraphicsConfigurationGDI: hdc "+toHexString(hdc)+", capsChosen "+capsChosen+", "+GLGraphicsConfigurationUtil.winAttributeBits2String(null, winattrmask).toString());
final int pformatsNum = null != pformats ? pformats.length : -1;
System.err.println("\textHDC "+extHDC+", chooser "+(null!=chooser)+", pformatsNum "+pformatsNum);
}
final AbstractGraphicsDevice device = config.getScreen().getDevice();
WGLGLCapabilities pixelFormatCaps = null; // chosen or preset PFD ID's caps
boolean pixelFormatSet = false; // indicates a preset PFD ID [caps]
final int presetPFDID = extHDC ? -1 : WGLUtil.GetPixelFormat(hdc) ;
if ( 1 <= presetPFDID ) {
// Pixelformat already set by either
// - a previous preselectGraphicsConfiguration() call on the same HDC,
// - the graphics driver, copying the HDC's pixelformat to the new one,
// - or the Java2D/OpenGL pipeline's configuration
if (DEBUG) {
System.err.println("updateGraphicsConfigurationGDI: NOTE: pixel format already chosen for HDC: " + toHexString(hdc)
+ ", pixelformat " + presetPFDID);
}
pixelFormatSet = true;
pixelFormatCaps = WindowsWGLGraphicsConfiguration.PFD2GLCapabilities(device, glProfile, hdc, presetPFDID, winattrmask);
if(null == pixelFormatCaps) {
throw new GLException("Could not map PFD2GLCaps w/ already chosen pfdID "+presetPFDID);
}
} else {
final boolean givenPFormats = null != pformats;
if( !givenPFormats ) {
pformats = WindowsWGLGraphicsConfiguration.wglAllGDIPFIDs(hdc);
}
// 1st choice: get GLCapabilities based on users GLCapabilities setting recommendedIndex as preferred choice
final List availableCaps = new ArrayList();
PIXELFORMATDESCRIPTOR pfd = WindowsWGLGraphicsConfiguration.createPixelFormatDescriptor();
pfd = WindowsWGLGraphicsConfiguration.GLCapabilities2PFD(capsChosen, pfd);
int chosenPFDID = WGLUtil.ChoosePixelFormat(hdc, pfd);
int recommendedIndex = -1 ;
final boolean skipCapsChooser;
if( 1 <= chosenPFDID ) {
// _skipCapsChooser: fast path: skip choosing if using recommended idx and null chooser is used and if not translucent
final boolean _skipCapsChooser = null == chooser && capsChosen.isBackgroundOpaque();
// seek index .. in all formats _or_ in given formats!
int chosenIdx;
for (chosenIdx = pformats.length - 1 ; 0 <= chosenIdx && chosenPFDID != pformats[chosenIdx]; chosenIdx--) { /* nop */ }
if( 0 <= chosenIdx ) {
if( _skipCapsChooser ) {
final WGLGLCapabilities caps = WindowsWGLGraphicsConfiguration.PFD2GLCapabilities(device, glProfile, hdc,
chosenPFDID, winattrmask);
if(null != caps) {
availableCaps.add(caps);
recommendedIndex = 0;
skipCapsChooser = true;
} else {
skipCapsChooser = false;
}
} else {
skipCapsChooser = false;
}
if( DEBUG ) {
System.err.println("Chosen PFDID "+chosenPFDID+" (idx "+chosenIdx+") -> recommendedIndex "+recommendedIndex+", skipCapsChooser "+skipCapsChooser);
}
} else {
if(DEBUG) {
final GLCapabilitiesImmutable reqPFDCaps = WindowsWGLGraphicsConfiguration.PFD2GLCapabilitiesNoCheck(device, glProfile, pfd, chosenPFDID);
final GLCapabilitiesImmutable chosenCaps = WindowsWGLGraphicsConfiguration.PFD2GLCapabilities(device, glProfile, hdc, chosenPFDID, winattrmask);
System.err.println("Chosen PFDID "+chosenPFDID+" (idx "+chosenIdx+"), but not found in available caps (use given pfdIDs "+givenPFormats+", reqPFDCaps "+reqPFDCaps+", chosenCaps: "+chosenCaps);
}
chosenPFDID = 0; // not found in pformats -> clear
skipCapsChooser = false;
}
} else {
skipCapsChooser = false;
}
if (DEBUG) {
System.err.println("updateGraphicsConfigurationGDI: ChoosePixelFormat(HDC " + toHexString(hdc) + ") = pfdID " + chosenPFDID + ", skipCapsChooser "+skipCapsChooser+", idx " + recommendedIndex + " (LastError: " + GDI.GetLastError() + ")");
}
if( !skipCapsChooser ) {
for (int i = 0; i < pformats.length; i++) {
final int pfdid = pformats[i];
final WGLGLCapabilities caps = WindowsWGLGraphicsConfiguration.PFD2GLCapabilities(device, glProfile,
hdc, pfdid, winattrmask);
if(null != caps) {
availableCaps.add(caps);
if(DEBUG) {
final int j = availableCaps.size() - 1;
System.err.println("updateGraphicsConfigurationGDI: availableCaps["+i+" -> "+j+"]: "+caps);
}
} else if(DEBUG) {
final GLCapabilitiesImmutable skipped = WindowsWGLGraphicsConfiguration.PFD2GLCapabilitiesNoCheck(device, glProfile, hdc, pformats[i]);
System.err.println("updateGraphicsConfigurationGDI: availableCaps["+i+" -> skip]: pfdID "+pformats[i]+", "+skipped);
}
}
// seek recommendedIndex in all _or_ given formats!
if( 1 <= chosenPFDID && 0 > recommendedIndex) {
for (recommendedIndex = availableCaps.size() - 1 ;
0 <= recommendedIndex && chosenPFDID != ((WGLGLCapabilities) availableCaps.get(recommendedIndex)).getPFDID();
recommendedIndex--)
{ /* nop */ }
}
}
// 2nd choice: if no preferred recommendedIndex available
final int chosenIndex;
if( skipCapsChooser ) {
chosenIndex = recommendedIndex;
} else {
chosenIndex = chooseCapabilities(chooser, capsChosen, availableCaps, recommendedIndex);
}
if ( 0 > chosenIndex ) {
if (DEBUG) {
System.err.println("updateGraphicsConfigurationGDI: failed, return false");
ExceptionUtils.dumpStack(System.err);
}
return false;
}
pixelFormatCaps = (WGLGLCapabilities) availableCaps.get(chosenIndex);
if (DEBUG) {
System.err.println("chosen pfdID (GDI): recommendedIndex "+recommendedIndex+" -> chosenIndex "+ chosenIndex + ", skipCapsChooser "+skipCapsChooser+", caps " + pixelFormatCaps +
" (" + WGLGLCapabilities.PFD2String(pixelFormatCaps.getPFD(), pixelFormatCaps.getPFDID()) +")");
}
}
if ( !extHDC && !pixelFormatSet ) {
config.setPixelFormat(hdc, pixelFormatCaps);
} else {
config.setCapsPFD(pixelFormatCaps);
}
return true;
}
}