diff options
Diffstat (limited to 'src/net/java/games/jogl/impl/windows/WindowsGLDrawable.java')
| -rw-r--r-- | src/net/java/games/jogl/impl/windows/WindowsGLDrawable.java | 497 |
1 files changed, 497 insertions, 0 deletions
diff --git a/src/net/java/games/jogl/impl/windows/WindowsGLDrawable.java b/src/net/java/games/jogl/impl/windows/WindowsGLDrawable.java new file mode 100644 index 000000000..42e83c05d --- /dev/null +++ b/src/net/java/games/jogl/impl/windows/WindowsGLDrawable.java @@ -0,0 +1,497 @@ +/* + * 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.windows; + +import java.awt.Component; +import java.awt.GraphicsConfiguration; +import java.awt.GraphicsDevice; + +import net.java.games.jogl.*; +import net.java.games.jogl.impl.*; + +public abstract class WindowsGLDrawable extends GLDrawableImpl { + protected static final boolean DEBUG = Debug.debug("WindowsGLDrawable"); + + protected long hdc; + protected Component component; + 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(Component component, + GLCapabilities capabilities, + GLCapabilitiesChooser chooser) { + this.component = component; + 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; + } + + public void choosePixelFormat(boolean onscreen) { + PIXELFORMATDESCRIPTOR pfd = null; + int pixelFormat = 0; + if (onscreen) { + GLCapabilities[] availableCaps = null; + int numFormats = 0; + pfd = newPixelFormatDescriptor(); + GraphicsConfiguration config = component.getGraphicsConfiguration(); + GraphicsDevice device = config.getDevice(); + // Produce a recommended pixel format selection for the GLCapabilitiesChooser. + // Use wglChoosePixelFormatARB if user requested multisampling and if we have it available + GL dummyGL = null; + if (capabilities.getSampleBuffers()) { + dummyGL = WindowsGLContextFactory.getDummyGL(device); + } + int recommendedPixelFormat = -1; + boolean haveWGLChoosePixelFormatARB = false; + boolean haveWGLARBMultisample = false; + if (dummyGL != null) { + String availableWGLExtensions = WindowsGLContextFactory.getDummyGLExtensions(device); + if (availableWGLExtensions.indexOf("WGL_ARB_pixel_format") >= 0) { + haveWGLChoosePixelFormatARB = true; + if (availableWGLExtensions.indexOf("WGL_ARB_multisample") >= 0) { + haveWGLARBMultisample = true; + } + } + } + long dc = 0; + long rc = 0; + boolean freeWGLC = false; + if( dummyGL != null ) { + dc = WindowsGLContextFactory.getDummyGLDrawable( device ).hdc; + rc = WindowsGLContextFactory.getDummyGLContext( device ).hglrc; + if( !WGL.wglMakeCurrent( dc, rc ) ) { + System.err.println(getThreadName() + ": Error Making WGLC Current: " + WGL.GetLastError() ); + } else { + freeWGLC = true; + } + } + // Fallback path for older cards, in particular Intel Extreme motherboard graphics + boolean gotAvailableCaps = false; + if (dummyGL != null && haveWGLChoosePixelFormatARB) { + int[] iattributes = new int [2 * MAX_ATTRIBS]; + int[] iresults = new int [2 * MAX_ATTRIBS]; + float[] fattributes = new float[2 * MAX_ATTRIBS]; + int niattribs = 0; + int nfattribs = 0; + iattributes[niattribs++] = GL.WGL_SUPPORT_OPENGL_ARB; + iattributes[niattribs++] = GL.GL_TRUE; + iattributes[niattribs++] = GL.WGL_DRAW_TO_WINDOW_ARB; + iattributes[niattribs++] = GL.GL_TRUE; + iattributes[niattribs++] = GL.WGL_PIXEL_TYPE_ARB; + iattributes[niattribs++] = GL.WGL_TYPE_RGBA_ARB; + iattributes[niattribs++] = GL.WGL_DOUBLE_BUFFER_ARB; + if (capabilities.getDoubleBuffered()) { + iattributes[niattribs++] = GL.GL_TRUE; + } else { + iattributes[niattribs++] = GL.GL_FALSE; + } + iattributes[niattribs++] = GL.WGL_STEREO_ARB; + if (capabilities.getStereo()) { + iattributes[niattribs++] = GL.GL_TRUE; + } else { + iattributes[niattribs++] = GL.GL_FALSE; + } + iattributes[niattribs++] = GL.WGL_DEPTH_BITS_ARB; + iattributes[niattribs++] = capabilities.getDepthBits(); + iattributes[niattribs++] = GL.WGL_RED_BITS_ARB; + iattributes[niattribs++] = capabilities.getRedBits(); + iattributes[niattribs++] = GL.WGL_GREEN_BITS_ARB; + iattributes[niattribs++] = capabilities.getGreenBits(); + iattributes[niattribs++] = GL.WGL_BLUE_BITS_ARB; + iattributes[niattribs++] = capabilities.getBlueBits(); + iattributes[niattribs++] = GL.WGL_ALPHA_BITS_ARB; + iattributes[niattribs++] = capabilities.getAlphaBits(); + iattributes[niattribs++] = GL.WGL_STENCIL_BITS_ARB; + iattributes[niattribs++] = capabilities.getStencilBits(); + if (capabilities.getAccumRedBits() > 0 || + capabilities.getAccumGreenBits() > 0 || + capabilities.getAccumBlueBits() > 0 || + capabilities.getAccumAlphaBits() > 0) { + iattributes[niattribs++] = GL.WGL_ACCUM_BITS_ARB; + iattributes[niattribs++] = (capabilities.getAccumRedBits() + + capabilities.getAccumGreenBits() + + capabilities.getAccumBlueBits() + + capabilities.getAccumAlphaBits()); + iattributes[niattribs++] = GL.WGL_ACCUM_RED_BITS_ARB; + iattributes[niattribs++] = capabilities.getAccumRedBits(); + iattributes[niattribs++] = GL.WGL_ACCUM_GREEN_BITS_ARB; + iattributes[niattribs++] = capabilities.getAccumGreenBits(); + iattributes[niattribs++] = GL.WGL_ACCUM_BLUE_BITS_ARB; + iattributes[niattribs++] = capabilities.getAccumBlueBits(); + iattributes[niattribs++] = GL.WGL_ACCUM_ALPHA_BITS_ARB; + iattributes[niattribs++] = capabilities.getAccumAlphaBits(); + } + if (haveWGLARBMultisample) { + if (capabilities.getSampleBuffers()) { + iattributes[niattribs++] = GL.WGL_SAMPLE_BUFFERS_ARB; + iattributes[niattribs++] = GL.GL_TRUE; + iattributes[niattribs++] = GL.WGL_SAMPLES_ARB; + iattributes[niattribs++] = capabilities.getNumSamples(); + } + } + + int[] pformats = new int[MAX_PFORMATS]; + int[] numFormatsTmp = new int[1]; + if (dummyGL.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) + niattribs = 0; + iattributes[0] = GL.WGL_NUMBER_PIXEL_FORMATS_ARB; + if (dummyGL.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++] = GL.WGL_DRAW_TO_WINDOW_ARB; + iattributes[niattribs++] = GL.WGL_ACCELERATION_ARB; + iattributes[niattribs++] = GL.WGL_SUPPORT_OPENGL_ARB; + iattributes[niattribs++] = GL.WGL_DEPTH_BITS_ARB; + iattributes[niattribs++] = GL.WGL_STENCIL_BITS_ARB; + iattributes[niattribs++] = GL.WGL_DOUBLE_BUFFER_ARB; + iattributes[niattribs++] = GL.WGL_STEREO_ARB; + iattributes[niattribs++] = GL.WGL_PIXEL_TYPE_ARB; + iattributes[niattribs++] = GL.WGL_RED_BITS_ARB; + iattributes[niattribs++] = GL.WGL_GREEN_BITS_ARB; + iattributes[niattribs++] = GL.WGL_BLUE_BITS_ARB; + iattributes[niattribs++] = GL.WGL_ALPHA_BITS_ARB; + iattributes[niattribs++] = GL.WGL_ACCUM_RED_BITS_ARB; + iattributes[niattribs++] = GL.WGL_ACCUM_GREEN_BITS_ARB; + iattributes[niattribs++] = GL.WGL_ACCUM_BLUE_BITS_ARB; + iattributes[niattribs++] = GL.WGL_ACCUM_ALPHA_BITS_ARB; + if (haveWGLARBMultisample) { + iattributes[niattribs++] = GL.WGL_SAMPLE_BUFFERS_ARB; + iattributes[niattribs++] = GL.WGL_SAMPLES_ARB; + } + + availableCaps = new GLCapabilities[numFormats]; + for (int i = 0; i < numFormats; i++) { + if (!dummyGL.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, niattribs, true); + } + if( freeWGLC ) { + WGL.wglMakeCurrent( 0, 0 ); + } + gotAvailableCaps = true; + } else { + int 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()); + } + } + } + + 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: dummyGL = " + dummyGL); + } + } + 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)) { + int 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; + } + + 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; + } + + static PIXELFORMATDESCRIPTOR newPixelFormatDescriptor() { + PIXELFORMATDESCRIPTOR pfd = new PIXELFORMATDESCRIPTOR(); + pfd.nSize((short) pfd.size()); + pfd.nVersion((short) 1); + return pfd; + } + + 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; + } + + static GLCapabilities iattributes2GLCapabilities(int[] iattribs, + int[] iresults, + int niattribs, + boolean requireRenderToWindow) { + GLCapabilities res = new GLCapabilities(); + for (int i = 0; i < niattribs; i++) { + switch (iattribs[i]) { + case GL.WGL_DRAW_TO_WINDOW_ARB: + if (iresults[i] != GL.GL_TRUE) + return null; + break; + + case GL.WGL_ACCELERATION_ARB: + res.setHardwareAccelerated(iresults[i] == GL.WGL_FULL_ACCELERATION_ARB); + break; + + case GL.WGL_SUPPORT_OPENGL_ARB: + if (iresults[i] != GL.GL_TRUE) + return null; + break; + + case GL.WGL_DEPTH_BITS_ARB: + res.setDepthBits(iresults[i]); + break; + + case GL.WGL_STENCIL_BITS_ARB: + res.setStencilBits(iresults[i]); + break; + + case GL.WGL_DOUBLE_BUFFER_ARB: + res.setDoubleBuffered(iresults[i] == GL.GL_TRUE); + break; + + case GL.WGL_STEREO_ARB: + res.setStereo(iresults[i] == GL.GL_TRUE); + break; + + case GL.WGL_PIXEL_TYPE_ARB: + if (iresults[i] != GL.WGL_TYPE_RGBA_ARB) + return null; + break; + + case GL.WGL_RED_BITS_ARB: + res.setRedBits(iresults[i]); + break; + + case GL.WGL_GREEN_BITS_ARB: + res.setGreenBits(iresults[i]); + break; + + case GL.WGL_BLUE_BITS_ARB: + res.setBlueBits(iresults[i]); + break; + + case GL.WGL_ALPHA_BITS_ARB: + res.setAlphaBits(iresults[i]); + break; + + case GL.WGL_ACCUM_RED_BITS_ARB: + res.setAccumRedBits(iresults[i]); + break; + + case GL.WGL_ACCUM_GREEN_BITS_ARB: + res.setAccumGreenBits(iresults[i]); + break; + + case GL.WGL_ACCUM_BLUE_BITS_ARB: + res.setAccumBlueBits(iresults[i]); + break; + + case GL.WGL_ACCUM_ALPHA_BITS_ARB: + res.setAccumAlphaBits(iresults[i]); + break; + + case GL.WGL_SAMPLE_BUFFERS_ARB: + res.setSampleBuffers(iresults[i] == GL.GL_TRUE); + break; + + case GL.WGL_SAMPLES_ARB: + res.setNumSamples(iresults[i]); + break; + + default: + throw new GLException("Unknown pixel format attribute " + iattribs[i]); + } + } + return res; + } + + protected static String getThreadName() { + return Thread.currentThread().getName(); + } +} |