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f6fb3c6d
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2016 Leszek Koltunski //
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// //
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// This file is part of Distorted. //
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// //
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// Distorted is free software: you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation, either version 2 of the License, or //
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// (at your option) any later version. //
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// //
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// Distorted is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with Distorted. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////////////////////
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package org.distorted.library;
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194ab46f
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Leszek Koltunski
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import android.opengl.GLES30;
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f6fb3c6d
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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dedacd82
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Leszek Koltunski
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/**
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* Class which represents a OpenGL Framebuffer object.
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71c3fecc
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Leszek Koltunski
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* <p>
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c5369f1b
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leszek
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* User is able to create offscreen FBOs and both a) render to them b) use their COLOR0 attachment as
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2ed1c692
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leszek
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* an input texture. Attaching Depths and/or Stencils is also possible.
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dedacd82
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Leszek Koltunski
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*/
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Leszek Koltunski
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public class DistortedFramebuffer extends DistortedOutputSurface implements DistortedInputSurface
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Leszek Koltunski
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{
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Must be called from a thread holding OpenGL Context
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f6fb3c6d
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Leszek Koltunski
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f8377ef8
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leszek
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void create()
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f6fb3c6d
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Leszek Koltunski
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{
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leszek
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if( mColorCreated==NOT_CREATED_YET )
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7cf783cb
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Leszek Koltunski
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{
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Leszek Koltunski
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GLES30.glGenTextures( mNumColors, mColorH, 0);
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Leszek Koltunski
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GLES30.glGenFramebuffers(1, mFBOH, 0);
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GLES30.glBindFramebuffer(GLES30.GL_FRAMEBUFFER, mFBOH[0]);
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for(int i=0; i<mNumColors; i++)
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{
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GLES30.glBindTexture(GLES30.GL_TEXTURE_2D, mColorH[i]);
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GLES30.glTexParameteri(GLES30.GL_TEXTURE_2D, GLES30.GL_TEXTURE_WRAP_S, GLES30.GL_REPEAT);
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GLES30.glTexParameteri(GLES30.GL_TEXTURE_2D, GLES30.GL_TEXTURE_WRAP_T, GLES30.GL_REPEAT);
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GLES30.glTexParameterf(GLES30.GL_TEXTURE_2D, GLES30.GL_TEXTURE_MIN_FILTER, GLES30.GL_NEAREST);
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GLES30.glTexParameterf(GLES30.GL_TEXTURE_2D, GLES30.GL_TEXTURE_MAG_FILTER, GLES30.GL_LINEAR);
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GLES30.glTexImage2D(GLES30.GL_TEXTURE_2D, 0, GLES30.GL_RGBA, mWidth, mHeight, 0, GLES30.GL_RGBA, GLES30.GL_UNSIGNED_BYTE, null);
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GLES30.glFramebufferTexture2D(GLES30.GL_FRAMEBUFFER, GLES30.GL_COLOR_ATTACHMENT0+i, GLES30.GL_TEXTURE_2D, mColorH[i], 0);
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}
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GLES30.glBindTexture(GLES30.GL_TEXTURE_2D, 0);
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GLES30.glBindFramebuffer(GLES30.GL_FRAMEBUFFER, 0);
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dedacd82
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leszek
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mColorCreated = checkStatus("color");
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Leszek Koltunski
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}
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leszek
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if( mDepthStencilCreated==NOT_CREATED_YET ) // we need to create a new DEPTH or STENCIL attachment
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{
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GLES30.glGenTextures(1, mDepthStencilH, 0);
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GLES30.glBindTexture(GLES30.GL_TEXTURE_2D, mDepthStencilH[0]);
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194ab46f
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GLES30.glTexParameteri(GLES30.GL_TEXTURE_2D, GLES30.GL_TEXTURE_WRAP_S, GLES30.GL_REPEAT);
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GLES30.glTexParameteri(GLES30.GL_TEXTURE_2D, GLES30.GL_TEXTURE_WRAP_T, GLES30.GL_REPEAT);
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GLES30.glTexParameteri(GLES30.GL_TEXTURE_2D, GLES30.GL_TEXTURE_MIN_FILTER, GLES30.GL_NEAREST);
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GLES30.glTexParameteri(GLES30.GL_TEXTURE_2D, GLES30.GL_TEXTURE_MAG_FILTER, GLES30.GL_NEAREST);
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Leszek Koltunski
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if( mDepthStencil==DEPTH_NO_STENCIL )
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{
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GLES30.glTexImage2D(GLES30.GL_TEXTURE_2D, 0, GLES30.GL_DEPTH_COMPONENT, mWidth, mHeight, 0, GLES30.GL_DEPTH_COMPONENT, GLES30.GL_UNSIGNED_INT, null);
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}
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89de975c
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leszek
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else if( mDepthStencil==BOTH_DEPTH_STENCIL )
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65e83759
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Leszek Koltunski
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{
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GLES30.glTexImage2D(GLES30.GL_TEXTURE_2D, 0, GLES30.GL_DEPTH24_STENCIL8, mWidth, mHeight, 0, GLES30.GL_DEPTH_STENCIL, GLES30.GL_UNSIGNED_INT_24_8, null);
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}
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leszek
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GLES30.glBindTexture(GLES30.GL_TEXTURE_2D, 0);
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133cbb2b
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GLES30.glBindFramebuffer(GLES30.GL_FRAMEBUFFER, mFBOH[0]);
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leszek
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if( mDepthStencil==DEPTH_NO_STENCIL )
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65e83759
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Leszek Koltunski
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{
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89de975c
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leszek
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GLES30.glFramebufferTexture2D(GLES30.GL_FRAMEBUFFER, GLES30.GL_DEPTH_ATTACHMENT, GLES30.GL_TEXTURE_2D, mDepthStencilH[0], 0);
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65e83759
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Leszek Koltunski
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}
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leszek
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else if( mDepthStencil==BOTH_DEPTH_STENCIL )
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Leszek Koltunski
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{
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leszek
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GLES30.glFramebufferTexture2D(GLES30.GL_FRAMEBUFFER, GLES30.GL_DEPTH_STENCIL_ATTACHMENT, GLES30.GL_TEXTURE_2D, mDepthStencilH[0], 0);
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}
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GLES30.glBindFramebuffer(GLES30.GL_FRAMEBUFFER, 0);
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mDepthStencilCreated = checkStatus("depth");
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}
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leszek
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if( mDepthStencilCreated==DONT_CREATE && mDepthStencilH[0]>0 ) // we need to detach and recreate the DEPTH attachment.
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Leszek Koltunski
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{
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leszek
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GLES30.glDeleteTextures(1, mDepthStencilH, 0);
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mDepthStencilH[0]=0;
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}
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8337fa41
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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c7da4e65
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leszek
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private int checkStatus(String message)
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8337fa41
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Leszek Koltunski
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{
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194ab46f
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int status = GLES30.glCheckFramebufferStatus(GLES30.GL_FRAMEBUFFER);
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8337fa41
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Leszek Koltunski
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if(status != GLES30.GL_FRAMEBUFFER_COMPLETE)
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8337fa41
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{
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android.util.Log.e("DistortedFramebuffer", "FRAMEBUFFER INCOMPLETE, "+message+" error="+status);
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133cbb2b
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Leszek Koltunski
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GLES30.glDeleteTextures(1, mColorH, 0);
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leszek
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GLES30.glDeleteTextures(1, mDepthStencilH, 0);
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133cbb2b
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Leszek Koltunski
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GLES30.glDeleteFramebuffers(1, mFBOH, 0);
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c7da4e65
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leszek
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mFBOH[0]= 0;
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8337fa41
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Leszek Koltunski
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c7da4e65
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leszek
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return FAILED_TO_CREATE;
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8337fa41
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Leszek Koltunski
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}
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8c327653
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Leszek Koltunski
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c7da4e65
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return CREATED;
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Leszek Koltunski
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////
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6537ba91
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Leszek Koltunski
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// Must be called from a thread holding OpenGL Context
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f6fb3c6d
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Leszek Koltunski
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227ac49a
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Leszek Koltunski
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void delete()
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f6fb3c6d
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Leszek Koltunski
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{
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c7da4e65
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leszek
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if( mColorH[0]>0 )
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e6cf7d50
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Leszek Koltunski
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{
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133cbb2b
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Leszek Koltunski
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GLES30.glDeleteTextures(1, mColorH, 0);
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c7da4e65
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leszek
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mColorH[0] = 0;
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mColorCreated = NOT_CREATED_YET;
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5b959cc5
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}
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bd3da5b2
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Leszek Koltunski
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if( mDepthStencilH[0]>0 )
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{
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GLES30.glDeleteTextures(1, mDepthStencilH, 0);
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mDepthStencilH[0]=0;
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mDepthStencilCreated = NOT_CREATED_YET;
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e6cf7d50
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Leszek Koltunski
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}
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5b959cc5
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Leszek Koltunski
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GLES30.glDeleteFramebuffers(1, mFBOH, 0);
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mFBOH[0] = 0;
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bd3da5b2
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Leszek Koltunski
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}
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4ebbb17a
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// called from onDestroy(); mark OpenGL assets as 'not created'
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f8377ef8
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leszek
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void recreate()
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4ebbb17a
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Leszek Koltunski
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{
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| 151 |
05ecc6fe
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Leszek Koltunski
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if( mColorCreated!=DONT_CREATE )
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{
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mColorCreated = NOT_CREATED_YET;
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mColorH[0] = 0;
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}
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89de975c
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leszek
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if( mDepthStencilCreated!=DONT_CREATE )
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| 157 |
05ecc6fe
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Leszek Koltunski
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{
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| 158 |
89de975c
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leszek
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mDepthStencilCreated = NOT_CREATED_YET;
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mDepthStencilH[0] = 0;
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| 160 |
05ecc6fe
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Leszek Koltunski
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}
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| 161 |
4ebbb17a
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Leszek Koltunski
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}
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af27df87
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leszek
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///////////////////////////////////////////////////////////////////////////////////////////////////
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09ab7524
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Leszek Koltunski
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// create SYSTEM or TREE framebuffers (those are just like normal FBOs, just hold information
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// that they were autocreated only for the Library's internal purposes (SYSTEM) or for using
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// inside a Tree of DistortedNodes (TREE)
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// SYSTEM surfaces do not get removed in onDestroy().
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af27df87
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leszek
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Leszek Koltunski
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DistortedFramebuffer(int numcolors, int depthStencil, int type, int width, int height)
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af27df87
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leszek
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{
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super(width,height,NOT_CREATED_YET,numcolors,depthStencil,NOT_CREATED_YET, type);
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af27df87
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leszek
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}
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f2367b75
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// For setting the Depth texture as input to fragment shaders that merge many planes. (currently: blur2)
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boolean setAsDepth()
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{
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89de975c
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leszek
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if( mDepthStencilH[0]>0 )
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f2367b75
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{
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GLES30.glActiveTexture(GLES30.GL_TEXTURE1);
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| 182 |
89de975c
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leszek
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GLES30.glBindTexture(GLES30.GL_TEXTURE_2D, mDepthStencilH[0]);
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f2367b75
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Leszek Koltunski
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return true;
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}
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return false;
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}
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f6fb3c6d
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// PUBLIC API
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dedacd82
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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cdd5e827
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Leszek Koltunski
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/**
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| 193 |
9ed80185
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Leszek Koltunski
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* Create new offscreen Framebuffer with configurable number of COLOR, DEPTH and STENCIL attachments.
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| 194 |
cdd5e827
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Leszek Koltunski
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*
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| 195 |
9ed80185
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Leszek Koltunski
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* @param width Width of all the COLOR attachments.
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* @param height Height of all the COLOR attachments.
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* @param numcolors How many COLOR attachments to create?
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89de975c
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leszek
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* @param depthStencil Add DEPTH or STENCIL attachment?
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23eecbd9
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* Valid values: NO_DEPTH_NO_STENCIL, DEPTH_NO_STENCIL, BOTH_DEPTH_STENCIL.
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| 200 |
cdd5e827
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Leszek Koltunski
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*/
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| 201 |
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@SuppressWarnings("unused")
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| 202 |
9ed80185
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Leszek Koltunski
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public DistortedFramebuffer(int width, int height, int numcolors, int depthStencil)
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| 203 |
cdd5e827
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Leszek Koltunski
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{
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| 204 |
9ed80185
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super(width,height,NOT_CREATED_YET,numcolors,depthStencil,NOT_CREATED_YET,TYPE_USER);
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| 205 |
cdd5e827
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Leszek Koltunski
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}
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| 206 |
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| 207 |
133cbb2b
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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| 208 |
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| 209 |
dedacd82
|
Leszek Koltunski
|
/**
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| 210 |
9ed80185
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Leszek Koltunski
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* Create new offscreen Framebuffer with COLOR0 attachment only.
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| 211 |
dedacd82
|
Leszek Koltunski
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*
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| 212 |
9ed80185
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Leszek Koltunski
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* @param width Width of the COLOR0 attachment.
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| 213 |
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* @param height Height of the COLOR0 attachment.
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| 214 |
dedacd82
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Leszek Koltunski
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*/
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| 215 |
1942537e
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Leszek Koltunski
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@SuppressWarnings("unused")
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| 216 |
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Leszek Koltunski
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public DistortedFramebuffer(int width, int height)
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| 217 |
f6fb3c6d
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Leszek Koltunski
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{
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| 218 |
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super(width,height,NOT_CREATED_YET, 1, NO_DEPTH_NO_STENCIL,NOT_CREATED_YET,TYPE_USER);
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| 219 |
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}
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Leszek Koltunski
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///////////////////////////////////////////////////////////////////////////////////////////////////
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| 222 |
dedacd82
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Leszek Koltunski
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/**
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| 223 |
c5369f1b
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leszek
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* Bind the underlying rectangle of pixels as a OpenGL Texture.
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| 224 |
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*
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| 225 |
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leszek
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* @return <code>true</code> if successful.
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| 226 |
dedacd82
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Leszek Koltunski
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*/
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| 227 |
c5369f1b
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leszek
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public boolean setAsInput()
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| 228 |
b448e6b9
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Leszek Koltunski
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{
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| 229 |
c5369f1b
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leszek
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if( mColorH[0]>0 )
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| 230 |
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{
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| 231 |
f2367b75
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Leszek Koltunski
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GLES30.glActiveTexture(GLES30.GL_TEXTURE0);
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| 232 |
c5369f1b
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leszek
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GLES30.glBindTexture(GLES30.GL_TEXTURE_2D, mColorH[0]);
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| 233 |
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return true;
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| 234 |
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}
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| 235 |
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| 236 |
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return false;
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| 237 |
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}
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| 238 |
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Leszek Koltunski
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| 239 |
89de975c
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leszek
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///////////////////////////////////////////////////////////////////////////////////////////////////
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| 240 |
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/**
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| 241 |
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* Enable.disable DEPTH and STENCIL buffers.
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| 242 |
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*
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| 243 |
23eecbd9
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Leszek Koltunski
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* @param depthStencil Valid values: NO_DEPTH_NO_STENCIL, DEPTH_NO_STENCIL, BOTH_DEPTH_STENCIL.
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| 244 |
89de975c
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leszek
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*/
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| 245 |
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public void enableDepthStencil(int depthStencil)
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| 246 |
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{
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| 247 |
65e83759
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Leszek Koltunski
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if( depthStencil != mDepthStencil )
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| 248 |
89de975c
|
leszek
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{
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| 249 |
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mDepthStencil = depthStencil;
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| 250 |
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| 251 |
65e83759
|
Leszek Koltunski
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if( depthStencil!= NO_DEPTH_NO_STENCIL && mDepthStencilCreated==DONT_CREATE )
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| 252 |
89de975c
|
leszek
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{
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| 253 |
65e83759
|
Leszek Koltunski
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mDepthStencilCreated = NOT_CREATED_YET;
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| 254 |
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markForCreation();
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| 255 |
89de975c
|
leszek
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}
|
| 256 |
65e83759
|
Leszek Koltunski
|
if( depthStencil== NO_DEPTH_NO_STENCIL && mDepthStencilCreated!=DONT_CREATE )
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| 257 |
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{
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| 258 |
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mDepthStencilCreated = DONT_CREATE;
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| 259 |
|
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markForCreation();
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| 260 |
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}
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| 261 |
89de975c
|
leszek
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}
|
| 262 |
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}
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| 263 |
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| 264 |
d1e740c5
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
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| 265 |
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/**
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| 266 |
09d4f4b1
|
Leszek Koltunski
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* Return the ID of the Texture (COLOR attachment 0) that's backing this FBO.
|
| 267 |
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* <p>
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| 268 |
|
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* Catch: this will only work if the library has had time to actually create the texture. Remember
|
| 269 |
|
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* that the texture gets created only on first render, thus creating a Texture object and immediately
|
| 270 |
|
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* calling this method will return an invalid (negative) result.
|
| 271 |
|
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*
|
| 272 |
ab12f06b
|
Leszek Koltunski
|
* @return If there was not a single render between creation of the Object and calling this method on
|
| 273 |
|
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* it, return a negative value. Otherwise, return ID of COLOR attachment 0.
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| 274 |
d1e740c5
|
Leszek Koltunski
|
*/
|
| 275 |
09d4f4b1
|
Leszek Koltunski
|
public int getTextureID()
|
| 276 |
d1e740c5
|
Leszek Koltunski
|
{
|
| 277 |
133cbb2b
|
Leszek Koltunski
|
return mColorH[0];
|
| 278 |
8c327653
|
Leszek Koltunski
|
}
|
| 279 |
f6fb3c6d
|
Leszek Koltunski
|
}
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