/*
* 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 com.sun.opengl.impl.windows;
import javax.media.opengl.*;
import com.sun.opengl.impl.*;
public abstract class WindowsGLDrawable extends GLDrawableImpl {
protected static final boolean DEBUG = Debug.debug("WindowsGLDrawable");
protected long hdc;
protected GLCapabilities capabilities;
protected GLCapabilitiesChooser chooser;
protected boolean pixelFormatChosen;
protected static final int MAX_PFORMATS = 256;
protected static final int MAX_ATTRIBS = 256;
public WindowsGLDrawable(GLCapabilities capabilities,
GLCapabilitiesChooser chooser) {
this.capabilities = (GLCapabilities) capabilities.clone();
this.chooser = chooser;
}
public void setRealized(boolean val) {
throw new GLException("Should not call this (should only be called for onscreen GLDrawables)");
}
public void destroy() {
throw new GLException("Should not call this (should only be called for offscreen GLDrawables)");
}
public void swapBuffers() throws GLException {
}
public long getHDC() {
return hdc;
}
protected void choosePixelFormat(boolean onscreen) {
PIXELFORMATDESCRIPTOR pfd = null;
int pixelFormat = 0;
if (onscreen) {
if (WGL.GetPixelFormat(hdc) != 0) {
// The Java2D/OpenGL pipeline probably already set a pixel
// format for this canvas.
if (DEBUG) {
System.err.println("NOTE: pixel format already chosen (by Java2D/OpenGL pipeline?) for window: " +
WGL.GetPixelFormat(hdc));
}
pixelFormatChosen = true;
return;
}
GLCapabilities[] availableCaps = null;
int numFormats = 0;
pfd = newPixelFormatDescriptor();
// Produce a recommended pixel format selection for the GLCapabilitiesChooser.
// Use wglChoosePixelFormatARB if user requested multisampling and if we have it available
WindowsGLDrawable dummyDrawable = null;
GLContextImpl dummyContext = null;
WGLExt dummyWGLExt = null;
if (capabilities.getSampleBuffers()) {
dummyDrawable = new WindowsDummyGLDrawable();
dummyContext = (GLContextImpl) dummyDrawable.createContext(null);
if (dummyContext != null) {
dummyContext.makeCurrent();
dummyWGLExt = (WGLExt) dummyContext.getPlatformGLExtensions();
}
}
int recommendedPixelFormat = -1;
boolean haveWGLChoosePixelFormatARB = false;
boolean haveWGLARBMultisample = false;
boolean gotAvailableCaps = false;
if (dummyWGLExt != null) {
try {
int[] iattributes = new int [2 * MAX_ATTRIBS];
int[] iresults = new int [2 * MAX_ATTRIBS];
float[] fattributes = new float[1];
if (glCapabilities2iattributes(capabilities,
iattributes,
dummyWGLExt,
false,
null)) {
int[] pformats = new int[MAX_PFORMATS];
int[] numFormatsTmp = new int[1];
if (dummyWGLExt.wglChoosePixelFormatARB(hdc,
iattributes, 0,
fattributes, 0,
MAX_PFORMATS,
pformats, 0,
numFormatsTmp, 0)) {
numFormats = numFormatsTmp[0];
if (numFormats > 0) {
// Remove one-basing of pixel format (added on later)
recommendedPixelFormat = pformats[0] - 1;
if (DEBUG) {
System.err.println(getThreadName() + ": Used wglChoosePixelFormatARB to recommend pixel format " + recommendedPixelFormat);
}
}
} else {
if (DEBUG) {
System.err.println(getThreadName() + ": wglChoosePixelFormatARB failed: " + WGL.GetLastError() );
Thread.dumpStack();
}
}
if (DEBUG) {
if (recommendedPixelFormat < 0) {
System.err.print(getThreadName() + ": wglChoosePixelFormatARB didn't recommend a pixel format");
if (capabilities.getSampleBuffers()) {
System.err.print(" for multisampled GLCapabilities");
}
System.err.println();
}
}
// Produce a list of GLCapabilities to give to the
// GLCapabilitiesChooser.
// Use wglGetPixelFormatAttribivARB instead of
// DescribePixelFormat to get higher-precision information
// about the pixel format (should make the GLCapabilities
// more precise as well...i.e., remove the
// "HardwareAccelerated" bit, which is basically
// meaningless, and put in whether it can render to a
// window, to a pbuffer, or to a pixmap)
int niattribs = 0;
iattributes[0] = WGLExt.WGL_NUMBER_PIXEL_FORMATS_ARB;
if (dummyWGLExt.wglGetPixelFormatAttribivARB(hdc, 0, 0, 1, iattributes, 0, iresults, 0)) {
numFormats = iresults[0];
// Should we be filtering out the pixel formats which aren't
// applicable, as we are doing here?
// We don't have enough information in the GLCapabilities to
// represent those that aren't...
iattributes[niattribs++] = WGLExt.WGL_DRAW_TO_WINDOW_ARB;
iattributes[niattribs++] = WGLExt.WGL_ACCELERATION_ARB;
iattributes[niattribs++] = WGLExt.WGL_SUPPORT_OPENGL_ARB;
iattributes[niattribs++] = WGLExt.WGL_DEPTH_BITS_ARB;
iattributes[niattribs++] = WGLExt.WGL_STENCIL_BITS_ARB;
iattributes[niattribs++] = WGLExt.WGL_DOUBLE_BUFFER_ARB;
iattributes[niattribs++] = WGLExt.WGL_STEREO_ARB;
iattributes[niattribs++] = WGLExt.WGL_PIXEL_TYPE_ARB;
iattributes[niattribs++] = WGLExt.WGL_RED_BITS_ARB;
iattributes[niattribs++] = WGLExt.WGL_GREEN_BITS_ARB;
iattributes[niattribs++] = WGLExt.WGL_BLUE_BITS_ARB;
iattributes[niattribs++] = WGLExt.WGL_ALPHA_BITS_ARB;
iattributes[niattribs++] = WGLExt.WGL_ACCUM_RED_BITS_ARB;
iattributes[niattribs++] = WGLExt.WGL_ACCUM_GREEN_BITS_ARB;
iattributes[niattribs++] = WGLExt.WGL_ACCUM_BLUE_BITS_ARB;
iattributes[niattribs++] = WGLExt.WGL_ACCUM_ALPHA_BITS_ARB;
if (haveWGLARBMultisample) {
iattributes[niattribs++] = WGLExt.WGL_SAMPLE_BUFFERS_ARB;
iattributes[niattribs++] = WGLExt.WGL_SAMPLES_ARB;
}
availableCaps = new GLCapabilities[numFormats];
for (int i = 0; i < numFormats; i++) {
if (!dummyWGLExt.wglGetPixelFormatAttribivARB(hdc, i+1, 0, niattribs, iattributes, 0, iresults, 0)) {
throw new GLException("Error getting pixel format attributes for pixel format " + (i + 1) + " of device context");
}
availableCaps[i] = iattributes2GLCapabilities(iattributes, iresults, true);
}
gotAvailableCaps = true;
} else {
long lastErr = WGL.GetLastError();
// Intel Extreme graphics fails with a zero error code
if (lastErr != 0) {
throw new GLException("Unable to enumerate pixel formats of window using wglGetPixelFormatAttribivARB: error code " + WGL.GetLastError());
}
}
}
} finally {
dummyContext.release();
dummyContext.destroy();
dummyDrawable.destroy();
}
}
// Fallback path for older cards, in particular Intel Extreme motherboard graphics
if (!gotAvailableCaps) {
if (DEBUG) {
if (!capabilities.getSampleBuffers()) {
System.err.println(getThreadName() + ": Using ChoosePixelFormat because multisampling not requested");
} else {
System.err.println(getThreadName() + ": Using ChoosePixelFormat because no wglChoosePixelFormatARB");
}
}
pfd = glCapabilities2PFD(capabilities, onscreen);
// Remove one-basing of pixel format (added on later)
recommendedPixelFormat = WGL.ChoosePixelFormat(hdc, pfd) - 1;
numFormats = WGL.DescribePixelFormat(hdc, 1, 0, null);
if (numFormats == 0) {
throw new GLException("Unable to enumerate pixel formats of window for GLCapabilitiesChooser");
}
availableCaps = new GLCapabilities[numFormats];
for (int i = 0; i < numFormats; i++) {
if (WGL.DescribePixelFormat(hdc, 1 + i, pfd.size(), pfd) == 0) {
throw new GLException("Error describing pixel format " + (1 + i) + " of device context");
}
availableCaps[i] = pfd2GLCapabilities(pfd);
}
}
// Supply information to chooser
pixelFormat = chooser.chooseCapabilities(capabilities, availableCaps, recommendedPixelFormat);
if ((pixelFormat < 0) || (pixelFormat >= numFormats)) {
throw new GLException("Invalid result " + pixelFormat +
" from GLCapabilitiesChooser (should be between 0 and " +
(numFormats - 1) + ")");
}
if (DEBUG) {
System.err.println(getThreadName() + ": Chosen pixel format (" + pixelFormat + "):");
System.err.println(availableCaps[pixelFormat]);
}
pixelFormat += 1; // one-base the index
if (WGL.DescribePixelFormat(hdc, pixelFormat, pfd.size(), pfd) == 0) {
throw new GLException("Error re-describing the chosen pixel format: " + WGL.GetLastError());
}
} else {
// For now, use ChoosePixelFormat for offscreen surfaces until
// we figure out how to properly choose an offscreen-
// compatible pixel format
pfd = glCapabilities2PFD(capabilities, onscreen);
pixelFormat = WGL.ChoosePixelFormat(hdc, pfd);
}
if (!WGL.SetPixelFormat(hdc, pixelFormat, pfd)) {
long lastError = WGL.GetLastError();
if (DEBUG) {
System.err.println(getThreadName() + ": SetPixelFormat failed: current context = " + WGL.wglGetCurrentContext() +
", current DC = " + WGL.wglGetCurrentDC());
System.err.println(getThreadName() + ": GetPixelFormat(hdc " + toHexString(hdc) + ") returns " + WGL.GetPixelFormat(hdc));
}
throw new GLException("Unable to set pixel format " + pixelFormat + " for device context " + toHexString(hdc) + ": error code " + lastError);
}
pixelFormatChosen = true;
}
protected static PIXELFORMATDESCRIPTOR glCapabilities2PFD(GLCapabilities caps, boolean onscreen) {
int colorDepth = (caps.getRedBits() +
caps.getGreenBits() +
caps.getBlueBits());
if (colorDepth < 15) {
throw new GLException("Bit depths < 15 (i.e., non-true-color) not supported");
}
PIXELFORMATDESCRIPTOR pfd = newPixelFormatDescriptor();
int pfdFlags = (WGL.PFD_SUPPORT_OPENGL |
WGL.PFD_GENERIC_ACCELERATED);
if (caps.getDoubleBuffered()) {
pfdFlags |= WGL.PFD_DOUBLEBUFFER;
}
if (onscreen) {
pfdFlags |= WGL.PFD_DRAW_TO_WINDOW;
} else {
pfdFlags |= WGL.PFD_DRAW_TO_BITMAP;
}
pfd.dwFlags(pfdFlags);
pfd.iPixelType((byte) WGL.PFD_TYPE_RGBA);
pfd.cColorBits((byte) colorDepth);
pfd.cRedBits ((byte) caps.getRedBits());
pfd.cGreenBits((byte) caps.getGreenBits());
pfd.cBlueBits ((byte) caps.getBlueBits());
pfd.cAlphaBits((byte) caps.getAlphaBits());
int accumDepth = (caps.getAccumRedBits() +
caps.getAccumGreenBits() +
caps.getAccumBlueBits());
pfd.cAccumBits ((byte) accumDepth);
pfd.cAccumRedBits ((byte) caps.getAccumRedBits());
pfd.cAccumGreenBits((byte) caps.getAccumGreenBits());
pfd.cAccumBlueBits ((byte) caps.getAccumBlueBits());
pfd.cAccumAlphaBits((byte) caps.getAccumAlphaBits());
pfd.cDepthBits((byte) caps.getDepthBits());
pfd.cStencilBits((byte) caps.getStencilBits());
pfd.iLayerType((byte) WGL.PFD_MAIN_PLANE);
return pfd;
}
protected static PIXELFORMATDESCRIPTOR newPixelFormatDescriptor() {
PIXELFORMATDESCRIPTOR pfd = PIXELFORMATDESCRIPTOR.create();
pfd.nSize((short) pfd.size());
pfd.nVersion((short) 1);
return pfd;
}
protected static GLCapabilities pfd2GLCapabilities(PIXELFORMATDESCRIPTOR pfd) {
if ((pfd.dwFlags() & WGL.PFD_SUPPORT_OPENGL) == 0) {
return null;
}
GLCapabilities res = new GLCapabilities();
res.setRedBits (pfd.cRedBits());
res.setGreenBits (pfd.cGreenBits());
res.setBlueBits (pfd.cBlueBits());
res.setAlphaBits (pfd.cAlphaBits());
res.setAccumRedBits (pfd.cAccumRedBits());
res.setAccumGreenBits(pfd.cAccumGreenBits());
res.setAccumBlueBits (pfd.cAccumBlueBits());
res.setAccumAlphaBits(pfd.cAccumAlphaBits());
res.setDepthBits (pfd.cDepthBits());
res.setStencilBits (pfd.cStencilBits());
res.setDoubleBuffered((pfd.dwFlags() & WGL.PFD_DOUBLEBUFFER) != 0);
res.setStereo ((pfd.dwFlags() & WGL.PFD_STEREO) != 0);
res.setHardwareAccelerated(((pfd.dwFlags() & WGL.PFD_GENERIC_FORMAT) == 0) ||
((pfd.dwFlags() & WGL.PFD_GENERIC_ACCELERATED) != 0));
return res;
}
protected static boolean glCapabilities2iattributes(GLCapabilities capabilities,
int[] iattributes,
WGLExt wglExt,
boolean pbuffer,
int[] floatMode) throws GLException {
if (!wglExt.isExtensionAvailable("WGL_ARB_pixel_format")) {
return false;
}
int niattribs = 0;
iattributes[niattribs++] = WGLExt.WGL_SUPPORT_OPENGL_ARB;
iattributes[niattribs++] = GL.GL_TRUE;
if (pbuffer) {
iattributes[niattribs++] = WGLExt.WGL_DRAW_TO_PBUFFER_ARB;
iattributes[niattribs++] = GL.GL_TRUE;
} else {
iattributes[niattribs++] = WGLExt.WGL_DRAW_TO_WINDOW_ARB;
iattributes[niattribs++] = GL.GL_TRUE;
}
iattributes[niattribs++] = WGLExt.WGL_DOUBLE_BUFFER_ARB;
if (capabilities.getDoubleBuffered()) {
iattributes[niattribs++] = GL.GL_TRUE;
} else {
iattributes[niattribs++] = GL.GL_FALSE;
}
iattributes[niattribs++] = WGLExt.WGL_STEREO_ARB;
if (capabilities.getStereo()) {
iattributes[niattribs++] = GL.GL_TRUE;
} else {
iattributes[niattribs++] = GL.GL_FALSE;
}
iattributes[niattribs++] = WGLExt.WGL_DEPTH_BITS_ARB;
iattributes[niattribs++] = capabilities.getDepthBits();
iattributes[niattribs++] = WGLExt.WGL_RED_BITS_ARB;
iattributes[niattribs++] = capabilities.getRedBits();
iattributes[niattribs++] = WGLExt.WGL_GREEN_BITS_ARB;
iattributes[niattribs++] = capabilities.getGreenBits();
iattributes[niattribs++] = WGLExt.WGL_BLUE_BITS_ARB;
iattributes[niattribs++] = capabilities.getBlueBits();
iattributes[niattribs++] = WGLExt.WGL_ALPHA_BITS_ARB;
iattributes[niattribs++] = capabilities.getAlphaBits();
iattributes[niattribs++] = WGLExt.WGL_STENCIL_BITS_ARB;
iattributes[niattribs++] = capabilities.getStencilBits();
if (capabilities.getAccumRedBits() > 0 ||
capabilities.getAccumGreenBits() > 0 ||
capabilities.getAccumBlueBits() > 0 ||
capabilities.getAccumAlphaBits() > 0) {
iattributes[niattribs++] = WGLExt.WGL_ACCUM_BITS_ARB;
iattributes[niattribs++] = (capabilities.getAccumRedBits() +
capabilities.getAccumGreenBits() +
capabilities.getAccumBlueBits() +
capabilities.getAccumAlphaBits());
iattributes[niattribs++] = WGLExt.WGL_ACCUM_RED_BITS_ARB;
iattributes[niattribs++] = capabilities.getAccumRedBits();
iattributes[niattribs++] = WGLExt.WGL_ACCUM_GREEN_BITS_ARB;
iattributes[niattribs++] = capabilities.getAccumGreenBits();
iattributes[niattribs++] = WGLExt.WGL_ACCUM_BLUE_BITS_ARB;
iattributes[niattribs++] = capabilities.getAccumBlueBits();
iattributes[niattribs++] = WGLExt.WGL_ACCUM_ALPHA_BITS_ARB;
iattributes[niattribs++] = capabilities.getAccumAlphaBits();
}
if (wglExt.isExtensionAvailable("WGL_ARB_multisample")) {
if (capabilities.getSampleBuffers()) {
iattributes[niattribs++] = WGLExt.WGL_SAMPLE_BUFFERS_ARB;
iattributes[niattribs++] = GL.GL_TRUE;
iattributes[niattribs++] = WGLExt.WGL_SAMPLES_ARB;
iattributes[niattribs++] = capabilities.getNumSamples();
}
}
boolean rtt = capabilities.getOffscreenRenderToTexture();
boolean rect = capabilities.getOffscreenRenderToTextureRectangle();
boolean useFloat = capabilities.getOffscreenFloatingPointBuffers();
boolean ati = false;
if (pbuffer) {
// Check some invariants and set up some state
if (rect && !rtt) {
throw new GLException("Render-to-texture-rectangle requires render-to-texture to be specified");
}
if (rect) {
if (!wglExt.isExtensionAvailable("GL_NV_texture_rectangle")) {
throw new GLException("Render-to-texture-rectangle requires GL_NV_texture_rectangle extension");
}
}
if (useFloat) {
if (!wglExt.isExtensionAvailable("WGL_ATI_pixel_format_float") &&
!wglExt.isExtensionAvailable("WGL_NV_float_buffer")) {
throw new GLException("Floating-point pbuffers not supported by this hardware");
}
// Prefer NVidia extension over ATI
if (wglExt.isExtensionAvailable("WGL_NV_float_buffer")) {
ati = false;
floatMode[0] = GLPbuffer.NV_FLOAT;
} else {
ati = true;
floatMode[0] = GLPbuffer.ATI_FLOAT;
}
if (DEBUG) {
System.err.println("Using " + (ati ? "ATI" : "NVidia") + " floating-point extension");
}
}
// See whether we need to change the pixel type to support ATI's
// floating-point pbuffers
if (useFloat && ati) {
if (rtt) {
throw new GLException("Render-to-floating-point-texture not supported on ATI hardware");
} else {
iattributes[niattribs++] = WGLExt.WGL_PIXEL_TYPE_ARB;
iattributes[niattribs++] = WGLExt.WGL_TYPE_RGBA_FLOAT_ATI;
}
} else {
if (!rtt) {
// Currently we don't support non-truecolor visuals in the
// GLCapabilities, so we don't offer the option of making
// color-index pbuffers.
iattributes[niattribs++] = WGLExt.WGL_PIXEL_TYPE_ARB;
iattributes[niattribs++] = WGLExt.WGL_TYPE_RGBA_ARB;
}
}
if (useFloat && !ati) {
iattributes[niattribs++] = WGLExt.WGL_FLOAT_COMPONENTS_NV;
iattributes[niattribs++] = GL.GL_TRUE;
}
if (rtt) {
if (useFloat) {
assert(!ati);
if (!rect) {
throw new GLException("Render-to-floating-point-texture only supported on NVidia hardware with render-to-texture-rectangle");
}
iattributes[niattribs++] = WGLExt.WGL_BIND_TO_TEXTURE_RECTANGLE_FLOAT_RGB_NV;
iattributes[niattribs++] = GL.GL_TRUE;
} else {
iattributes[niattribs++] = rect ? WGLExt.WGL_BIND_TO_TEXTURE_RECTANGLE_RGB_NV : WGLExt.WGL_BIND_TO_TEXTURE_RGB_ARB;
iattributes[niattribs++] = GL.GL_TRUE;
}
}
} else {
iattributes[niattribs++] = WGLExt.WGL_PIXEL_TYPE_ARB;
iattributes[niattribs++] = WGLExt.WGL_TYPE_RGBA_ARB;
}
return true;
}
protected static GLCapabilities iattributes2GLCapabilities(int[] iattribs,
int[] iresults,
boolean requireRenderToWindow) {
GLCapabilities res = new GLCapabilities();
int attr = 0;
int i = 0;
while ((attr = iattribs[i]) != 0) {
switch (attr) {
case WGLExt.WGL_DRAW_TO_WINDOW_ARB:
if (iresults[i] != GL.GL_TRUE)
return null;
break;
case WGLExt.WGL_ACCELERATION_ARB:
res.setHardwareAccelerated(iresults[i] == WGLExt.WGL_FULL_ACCELERATION_ARB);
break;
case WGLExt.WGL_SUPPORT_OPENGL_ARB:
if (iresults[i] != GL.GL_TRUE)
return null;
break;
case WGLExt.WGL_DEPTH_BITS_ARB:
res.setDepthBits(iresults[i]);
break;
case WGLExt.WGL_STENCIL_BITS_ARB:
res.setStencilBits(iresults[i]);
break;
case WGLExt.WGL_DOUBLE_BUFFER_ARB:
res.setDoubleBuffered(iresults[i] == GL.GL_TRUE);
break;
case WGLExt.WGL_STEREO_ARB:
res.setStereo(iresults[i] == GL.GL_TRUE);
break;
case WGLExt.WGL_PIXEL_TYPE_ARB:
if (iresults[i] != WGLExt.WGL_TYPE_RGBA_ARB)
return null;
break;
case WGLExt.WGL_RED_BITS_ARB:
res.setRedBits(iresults[i]);
break;
case WGLExt.WGL_GREEN_BITS_ARB:
res.setGreenBits(iresults[i]);
break;
case WGLExt.WGL_BLUE_BITS_ARB:
res.setBlueBits(iresults[i]);
break;
case WGLExt.WGL_ALPHA_BITS_ARB:
res.setAlphaBits(iresults[i]);
break;
case WGLExt.WGL_ACCUM_RED_BITS_ARB:
res.setAccumRedBits(iresults[i]);
break;
case WGLExt.WGL_ACCUM_GREEN_BITS_ARB:
res.setAccumGreenBits(iresults[i]);
break;
case WGLExt.WGL_ACCUM_BLUE_BITS_ARB:
res.setAccumBlueBits(iresults[i]);
break;
case WGLExt.WGL_ACCUM_ALPHA_BITS_ARB:
res.setAccumAlphaBits(iresults[i]);
break;
case WGLExt.WGL_SAMPLE_BUFFERS_ARB:
res.setSampleBuffers(iresults[i] == GL.GL_TRUE);
break;
case WGLExt.WGL_SAMPLES_ARB:
res.setNumSamples(iresults[i]);
break;
default:
throw new GLException("Unknown pixel format attribute " + iattribs[i]);
}
i++;
}
return res;
}
protected static String getThreadName() {
return Thread.currentThread().getName();
}
}