diff options
Diffstat (limited to 'src/classes/com/sun/opengl/impl/windows/WindowsPbufferGLContext.java')
-rw-r--r-- | src/classes/com/sun/opengl/impl/windows/WindowsPbufferGLContext.java | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/src/classes/com/sun/opengl/impl/windows/WindowsPbufferGLContext.java b/src/classes/com/sun/opengl/impl/windows/WindowsPbufferGLContext.java deleted file mode 100644 index 390c14054..000000000 --- a/src/classes/com/sun/opengl/impl/windows/WindowsPbufferGLContext.java +++ /dev/null @@ -1,163 +0,0 @@ -/* - * 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 class WindowsPbufferGLContext extends WindowsGLContext { - private static final boolean DEBUG = Debug.debug("WindowsPbufferGLContext"); - - // State for render-to-texture and render-to-texture-rectangle support - private WindowsPbufferGLDrawable drawable; - private boolean rtt; // render-to-texture? - private boolean hasRTT; // render-to-texture extension available? - private boolean rect; // render-to-texture-rectangle? - private int textureTarget; // e.g. GL_TEXTURE_2D, GL_TEXTURE_RECTANGLE_NV - private int texture; // actual texture object - - public WindowsPbufferGLContext(WindowsPbufferGLDrawable drawable, - GLContext shareWith) { - super(drawable, shareWith); - this.drawable = drawable; - } - - public void bindPbufferToTexture() { - if (!rtt) { - throw new GLException("Shouldn't try to bind a pbuffer to a texture if render-to-texture hasn't been " + - "specified in its GLCapabilities"); - } - GL gl = getGL(); - WGLExt wglExt = getWGLExt(); - gl.glBindTexture(textureTarget, texture); - if (rtt && hasRTT) { - if (!wglExt.wglBindTexImageARB(drawable.getPbuffer(), WGLExt.WGL_FRONT_LEFT_ARB)) { - throw new GLException("Binding of pbuffer to texture failed: " + wglGetLastError()); - } - } - // FIXME: comment is wrong now - // Note that if the render-to-texture extension is not supported, - // we perform a glCopyTexImage2D in swapBuffers(). - } - - public void releasePbufferFromTexture() { - if (!rtt) { - throw new GLException("Shouldn't try to bind a pbuffer to a texture if render-to-texture hasn't been " + - "specified in its GLCapabilities"); - } - if (rtt && hasRTT) { - WGLExt wglExt = getWGLExt(); - if (!wglExt.wglReleaseTexImageARB(drawable.getPbuffer(), WGLExt.WGL_FRONT_LEFT_ARB)) { - throw new GLException("Releasing of pbuffer from texture failed: " + wglGetLastError()); - } - } - } - - protected int makeCurrentImpl() throws GLException { - if (drawable.getHDC() == 0) { - // pbuffer not instantiated (yet?) - if (DEBUG) { - System.err.println("pbuffer not instantiated"); - } - return CONTEXT_NOT_CURRENT; - } - - int res = super.makeCurrentImpl(); - if (DEBUG && VERBOSE) { - System.err.println("WindowsPbufferGLContext: super.makeCurrentImpl() = " + res); - } - if (res == CONTEXT_CURRENT_NEW) { - GLCapabilities capabilities = drawable.getCapabilities(); - - // Initialize render-to-texture support if requested - rtt = capabilities.getPbufferRenderToTexture(); - rect = capabilities.getPbufferRenderToTextureRectangle(); - GL gl = getGL(); - - if (rtt) { - if (DEBUG) { - System.err.println("Initializing render-to-texture support"); - } - - if (!gl.isExtensionAvailable("WGL_ARB_render_texture")) { - System.err.println("WindowsPbufferGLContext: WARNING: WGL_ARB_render_texture extension not " + - "supported; implementing render_to_texture support using slow texture readback"); - } else { - hasRTT = true; - - if (rect && !gl.isExtensionAvailable("GL_NV_texture_rectangle")) { - System.err.println("WindowsPbufferGLContext: WARNING: GL_NV_texture_rectangle extension not " + - "supported; skipping requested render_to_texture_rectangle support for pbuffer"); - rect = false; - } - if (rect) { - if (DEBUG) { - System.err.println(" Using render-to-texture-rectangle"); - } - textureTarget = GL.GL_TEXTURE_RECTANGLE_NV; - } else { - if (DEBUG) { - System.err.println(" Using vanilla render-to-texture"); - } - textureTarget = GL.GL_TEXTURE_2D; - } - int[] tmp = new int[1]; - gl.glGenTextures(1, tmp, 0); - texture = tmp[0]; - gl.glBindTexture(textureTarget, texture); - gl.glTexParameteri(textureTarget, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST); - gl.glTexParameteri(textureTarget, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST); - gl.glTexParameteri(textureTarget, GL.GL_TEXTURE_WRAP_S, GL.GL_CLAMP_TO_EDGE); - gl.glTexParameteri(textureTarget, GL.GL_TEXTURE_WRAP_T, GL.GL_CLAMP_TO_EDGE); - gl.glCopyTexImage2D(textureTarget, 0, GL.GL_RGB, 0, 0, drawable.getWidth(), drawable.getHeight(), 0); - } - } - } - return res; - } - - public int getFloatingPointMode() { - return drawable.getFloatingPointMode(); - } - - private static String wglGetLastError() { - return WindowsGLDrawableFactory.wglGetLastError(); - } -} |