diff options
Diffstat (limited to 'src/classes')
| -rwxr-xr-x | src/classes/javax/media/opengl/util/FBObject.java | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/src/classes/javax/media/opengl/util/FBObject.java b/src/classes/javax/media/opengl/util/FBObject.java new file mode 100755 index 000000000..867512445 --- /dev/null +++ b/src/classes/javax/media/opengl/util/FBObject.java @@ -0,0 +1,212 @@ +/* + * Copyright (c) 2008 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. + * + */ + +package javax.media.opengl.util; + +import javax.media.opengl.*; + +public class FBObject { + private int fb, fbo_tex, depth_rb, stencil_rb, width, height, vStatus, attr; + + public static final int ATTR_DEPTH = 1 << 0; + public static final int ATTR_STENCIL = 1 << 1; + + public FBObject(int width, int height, int attributes) { + this.width = width; + this.height = height; + this.attr = attributes; + } + + + public boolean validateStatus(GL gl) + { + if(!gl.glIsFramebuffer(fb)) { + vStatus=-1; + return false; + } + vStatus=gl.glCheckFramebufferStatus(gl.GL_FRAMEBUFFER); + //vStatus=gl.glCheckFramebufferStatus(fb); + + switch(vStatus) { + case GL.GL_FRAMEBUFFER_COMPLETE: + return true; + case GL.GL_FRAMEBUFFER_UNSUPPORTED: + case GL.GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT: + case GL.GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: + case GL.GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS: + case GL.GL_FRAMEBUFFER_INCOMPLETE_FORMATS: + //case GL2.GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER: + //case GL2.GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER: + //case GL2.GL_FRAMEBUFFER_INCOMPLETE_DUPLICATE_ATTACHMENT: + case 0: + default: + return false; + } + } + + public String getStatusString() + { + switch(vStatus) { + case -1: + return "NOT A FBO"; + case GL.GL_FRAMEBUFFER_COMPLETE: + return "OK"; + case GL.GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT: + return("GL FBO: incomplete,incomplete attachment\n"); + case GL.GL_FRAMEBUFFER_UNSUPPORTED: + return("GL FBO: Unsupported framebuffer format"); + case GL.GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT: + return("GL FBO: incomplete,missing attachment"); + case GL.GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS: + return("GL FBO: incomplete,attached images must have same dimensions"); + case GL.GL_FRAMEBUFFER_INCOMPLETE_FORMATS: + return("GL FBO: incomplete,attached images must have same format"); + /* + case GL2.GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER: + return("GL FBO: incomplete,missing draw buffer"); + case GL2.GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER: + return("GL FBO: incomplete,missing read buffer"); + case GL2.GL_FRAMEBUFFER_INCOMPLETE_DUPLICATE_ATTACHMENT: + return("GL FBO: incomplete, duplicate attachment"); + */ + case 0: + return("GL FBO: incomplete, implementation fault"); + default: + return("GL FBO: incomplete, implementation ERROR"); + } + } + + public void init(GL gl) { + // generate fbo .. + int name[] = new int[1]; + + gl.glGenFramebuffers(1, name, 0); + fb = name[0]; + System.out.println("fb: "+fb); + + gl.glGenTextures(1, name, 0); + fbo_tex = name[0]; + System.out.println("fbo_tex: "+fbo_tex); + + if(0!=(attr&ATTR_DEPTH)) { + gl.glGenRenderbuffers(1, name, 0); + depth_rb = name[0]; + System.out.println("depth_rb: "+depth_rb); + } else { + depth_rb = 0; + } + if(0!=(attr&ATTR_STENCIL)) { + gl.glGenRenderbuffers(1, name, 0); + stencil_rb = name[0]; + System.out.println("stencil_rb: "+stencil_rb); + } else { + stencil_rb = 0; + } + + // bind fbo .. + gl.glBindFramebuffer(GL.GL_FRAMEBUFFER, fb); + + gl.glBindTexture(GL.GL_TEXTURE_2D, fbo_tex); + if(gl.isGL2()) { + gl.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGBA8, width, height, 0, + GL2.GL_BGRA, GL2.GL_UNSIGNED_INT_8_8_8_8_REV, null); + } else { + gl.glTexImage2D(GL.GL_TEXTURE_2D, 0, GL.GL_RGB8, width, height, 0, + GL.GL_RGB, GL.GL_UNSIGNED_BYTE, null); + } + gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_NEAREST); + gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_NEAREST); + //gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_S, GL2.GL_CLAMP); + //gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_WRAP_T, GL2.GL_CLAMP); + + + // Set up the color buffer for use as a renderable texture: + gl.glFramebufferTexture2D(GL.GL_FRAMEBUFFER, + GL.GL_COLOR_ATTACHMENT0, + GL.GL_TEXTURE_2D, fbo_tex, 0); + + if(depth_rb!=0) { + // Initialize the depth buffer: + gl.glBindRenderbuffer(GL.GL_RENDERBUFFER, depth_rb); + gl.glRenderbufferStorage(GL.GL_RENDERBUFFER, + GL.GL_DEPTH_COMPONENT16, width, height); + // Set up the depth buffer attachment: + gl.glFramebufferRenderbuffer(GL.GL_FRAMEBUFFER, + GL.GL_DEPTH_ATTACHMENT, + GL.GL_RENDERBUFFER, depth_rb); + } + + if(stencil_rb!=0) { + // Initialize the stencil buffer: + gl.glBindRenderbuffer(GL.GL_RENDERBUFFER, stencil_rb); + gl.glRenderbufferStorage(GL.GL_RENDERBUFFER, + GL.GL_STENCIL_INDEX8, width, height); + gl.glFramebufferRenderbuffer(GL.GL_FRAMEBUFFER, + GL.GL_STENCIL_ATTACHMENT, + GL.GL_RENDERBUFFER, stencil_rb); + } + + // Check the FBO for completeness + if(validateStatus(gl)) { + System.out.println("Framebuffer " + fb + " is complete"); + } else { + System.out.println("Framebuffer " + fb + " is incomplete: status = 0x" + Integer.toHexString(vStatus) + + " : " + getStatusString()); + } + + unbind(gl); + } + + public void bind(GL gl) { + gl.glBindTexture(GL.GL_TEXTURE_2D, fbo_tex); + gl.glBindFramebuffer(GL.GL_FRAMEBUFFER, fb); + } + + public void unbind(GL gl) { + gl.glBindTexture(GL.GL_TEXTURE_2D, 0); + gl.glBindFramebuffer(GL.GL_FRAMEBUFFER, 0); + } + + public void use(GL gl) { + gl.glBindTexture(GL.GL_TEXTURE_2D, 0); + gl.glBindFramebuffer(GL.GL_FRAMEBUFFER, 0); + gl.glBindTexture(GL.GL_TEXTURE_2D, fbo_tex); // to use it .. + } + + public int getFBName() { + return fb; + } + public int getTextureName() { + return fbo_tex; + } +} |