Distorted Android

///////////////////////////////////////////////////////////////////////////////////////////////////

// Copyright 2016 Leszek Koltunski                                                               //

//                                                                                               //

// This file is part of Distorted.                                                               //

//                                                                                               //

// Distorted is free software: you can redistribute it and/or modify                             //

// it under the terms of the GNU General Public License as published by                          //

// the Free Software Foundation, either version 2 of the License, or                             //

// (at your option) any later version.                                                           //

//                                                                                               //

// Distorted is distributed in the hope that it will be useful,                                  //

// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //

// GNU General Public License for more details.                                                  //

//                                                                                               //

// You should have received a copy of the GNU General Public License                             //

// along with Distorted.  If not, see <http://www.gnu.org/licenses/>.                            //

///////////////////////////////////////////////////////////////////////////////////////////////////

import org.distorted.library.effect.Effect;

import org.distorted.library.effect.EffectType;

import org.distorted.library.program.FragmentUniformsException;

import org.distorted.library.program.LinkingException;

import org.distorted.library.program.VertexCompilationException;

import org.distorted.library.program.VertexUniformsException;

import java.nio.ByteOrder;

import java.nio.FloatBuffer;

 * class.

  private static DistortedProgram mMainProgram;

  private static int mMainTextureH;

  static

    {

    int len = EffectName.LENGTH;

    for(int i=0; i<len; i++)

      {

      mEffectEnabled[i] = false;

      }

    }

  private static DistortedProgram mBlitProgram;

  private static int mBlitTextureH;

  static

    {

    float[] positionData= { -0.5f, -0.5f,  -0.5f, 0.5f,  0.5f,-0.5f,  0.5f, 0.5f };

    mQuadPositions = ByteBuffer.allocateDirect(32).order(ByteOrder.nativeOrder()).asFloatBuffer();

    mQuadPositions.put(positionData).position(0);

    }

  private static DistortedProgram mBlitDepthProgram;

  private static int mBlitDepthTextureH;

  private static int mBlitDepthDepthTextureH;

  private static int mBlitDepthDepthH;

  private static DistortedProgram mNormalProgram;

  private static int mNormalMVPMatrixH;

  /// END PROGRAMS //////

  private boolean matrixCloned, vertexCloned, fragmentCloned, postprocessCloned;

    {

    int type;

    int level;

    Job(int t, int l)

      {

      type = t;

      level= l;

      }

    }

  private ArrayList<Job> mJobs = new ArrayList<>();

  throws FragmentCompilationException,VertexCompilationException,VertexUniformsException,FragmentUniformsException,LinkingException

    final InputStream mainFragStream = resources.openRawResource(R.raw.main_fragment_shader);

    String mainFragHeader= Distorted.GLSL_VERSION;

    EffectType type;

    boolean foundV = false;

        type = name.getType();

        if( type == EffectType.VERTEX )

          {

          mainVertHeader += ("#define "+name.name()+" "+name.ordinal()+"\n");

          foundV = true;

          }

        else if( type == EffectType.FRAGMENT )

          {

          mainFragHeader += ("#define "+name.name()+" "+name.ordinal()+"\n");

          foundF = true;

          }

    mainFragHeader += ("#define NUM_FRAGMENT " + ( foundF ? getMax(EffectType.FRAGMENT) : 0 ) + "\n");

    //android.util.Log.e("Effects", "fragHeader= "+mainFragHeader);

    mMainProgram = new DistortedProgram(mainVertStream,mainFragStream, mainVertHeader, mainFragHeader, Distorted.GLSL, feedback);

    EffectQueueMatrix.getUniforms(mainProgramH);

    final InputStream blitFragStream = resources.openRawResource(R.raw.blit_fragment_shader);

    String blitFragHeader= (Distorted.GLSL_VERSION + "#define NUM_FRAGMENT 0\n");

      {

    catch(Exception e)

      {

      android.util.Log.e("EFFECTS", "exception trying to compile BLIT program: "+e.getMessage());

      throw new RuntimeException(e.getMessage());

      }

    int blitProgramH = mBlitProgram.getProgramHandle();

    mBlitTextureH  = GLES30.glGetUniformLocation( blitProgramH, "u_Texture");

    final InputStream blitDepthVertStream = resources.openRawResource(R.raw.blit_depth_vertex_shader);

    final InputStream blitDepthFragStream = resources.openRawResource(R.raw.blit_depth_fragment_shader);

    try

      {

      mBlitDepthProgram = new DistortedProgram(blitDepthVertStream,blitDepthFragStream,blitVertHeader,blitFragHeader, Distorted.GLSL);

      }

    catch(Exception e)

      {

      android.util.Log.e("EFFECTS", "exception trying to compile BLIT DEPTH program: "+e.getMessage());

      throw new RuntimeException(e.getMessage());

      }

    int blitDepthProgramH   = mBlitDepthProgram.getProgramHandle();

    mBlitDepthTextureH      = GLES30.glGetUniformLocation( blitDepthProgramH, "u_Texture");

    mBlitDepthDepthTextureH = GLES30.glGetUniformLocation( blitDepthProgramH, "u_DepthTexture");

    mBlitDepthDepthH        = GLES30.glGetUniformLocation( blitDepthProgramH, "u_Depth");

    final InputStream normalVertexStream   = resources.openRawResource(R.raw.normal_vertex_shader);

    final InputStream normalFragmentStream = resources.openRawResource(R.raw.normal_fragment_shader);

      {

    catch(Exception e)

      {

      }

    mNormalMVPMatrixH  = GLES30.glGetUniformLocation( normalProgramH, "u_MVPMatrix");

///////////////////////////////////////////////////////////////////////////////////////////////////

      matrixCloned = true;

      }

    else

      {

      }

      {

      mV = d.mV;

      vertexCloned = true;

      }

    else

      {

      }

      {

      mF = d.mF;

      fragmentCloned = true;

      {

      }

    if( (flags & Distorted.CLONE_POSTPROCESS) != 0 )

      {

      mP = d.mP;

      postprocessCloned = true;

      }

    else

      {

      mP = new EffectQueuePostprocess(mID);

      postprocessCloned = false;

      }

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  int postprocess(long time, DistortedOutputSurface surface)

    {

    return mP.postprocess(time,surface);

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  long getBucket()

    {

    return mP.getBucket();

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  int getQuality()

    {

    return mP.mQualityLevel;

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

  int getHalo()

    {

    return mP.getHalo();

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

/**

 * This is not really part of the public API. Has to be public only because it is a part of the

 * DistortedSlave interface, which should really be a class that we extend here instead but

 * Java has no multiple inheritance.

 *

 * @y.exclude

 */

  public void doWork()

    {

    int num = mJobs.size();

    Job job;

    for(int i=0; i<num; i++)

      {

      job = mJobs.remove(0);

      switch(job.type)

        {

        case MIPMAP: int level = job.level;

                     mP.mQualityLevel = level;

                     mP.mQualityScale = 1.0f;

                     for(int j=0; j<level; j++) mP.mQualityScale*=EffectQuality.MULTIPLIER;

                     break;

        }

      }

///////////////////////////////////////////////////////////////////////////////////////////////////

    GLES30.glBeginTransformFeedback( GLES30.GL_POINTS);

    DistortedRenderState.switchOffDrawing();

    GLES30.glDrawArrays( GLES30.GL_POINTS, 0, mesh.numVertices);

    DistortedRenderState.restoreDrawing();

    GLES30.glEndTransformFeedback();

    GLES30.glBindBufferBase(GLES30.GL_TRANSFORM_FEEDBACK_BUFFER, 0, 0);

    GLES30.glUniformMatrix4fv(mNormalMVPMatrixH, 1, false, mM.getMVP() , 0);

    GLES30.glBindBuffer(GLES30.GL_ARRAY_BUFFER, mesh.mAttTFO[0]);

    GLES30.glVertexAttribPointer(mNormalProgram.mAttribute[0], MeshObject.POS_DATA_SIZE, GLES30.GL_FLOAT, false, 0, 0);

    GLES30.glBindBuffer(GLES30.GL_ARRAY_BUFFER, 0);

    GLES30.glLineWidth(8.0f);

    GLES30.glDrawArrays(GLES30.GL_LINES, 0, 2*mesh.numVertices);

    mV.compute(currTime,halfW,halfH,halfZ);

    mF.compute(currTime,halfW,halfH);

      {

      GLES30.glBindBuffer(GLES30.GL_ARRAY_BUFFER, mesh.mAttVBO[0]);

      GLES30.glVertexAttribPointer(mMainProgram.mAttribute[0], MeshObject.POS_DATA_SIZE, GLES30.GL_FLOAT, false, MeshObject.VERTSIZE, MeshObject.OFFSET0);

      GLES30.glVertexAttribPointer(mMainProgram.mAttribute[1], MeshObject.NOR_DATA_SIZE, GLES30.GL_FLOAT, false, MeshObject.VERTSIZE, MeshObject.OFFSET1);

      GLES30.glVertexAttribPointer(mMainProgram.mAttribute[2], MeshObject.TEX_DATA_SIZE, GLES30.GL_FLOAT, false, MeshObject.VERTSIZE, MeshObject.OFFSET2);

      GLES30.glBindBuffer(GLES30.GL_ARRAY_BUFFER, 0);

      }

    else

      {

      mesh.mVertAttribs.position(0);

      GLES30.glVertexAttribPointer(mMainProgram.mAttribute[0], MeshObject.POS_DATA_SIZE, GLES30.GL_FLOAT, false, MeshObject.VERTSIZE, mesh.mVertAttribs);

      mesh.mVertAttribs.position(MeshObject.POS_DATA_SIZE);

      GLES30.glVertexAttribPointer(mMainProgram.mAttribute[1], MeshObject.NOR_DATA_SIZE, GLES30.GL_FLOAT, false, MeshObject.VERTSIZE, mesh.mVertAttribs);

      mesh.mVertAttribs.position(MeshObject.POS_DATA_SIZE+MeshObject.NOR_DATA_SIZE);

      GLES30.glVertexAttribPointer(mMainProgram.mAttribute[2], MeshObject.TEX_DATA_SIZE, GLES30.GL_FLOAT, false, MeshObject.VERTSIZE, mesh.mVertAttribs);

      }

    mF.send();

///////////////////////////////////////////////////////////////////////////////////////////////////

    GLES30.glDrawArrays(GLES30.GL_TRIANGLE_STRIP, 0, 4);

///////////////////////////////////////////////////////////////////////////////////////////////////

  static void blitDepthPriv(DistortedOutputSurface surface)

    {

    mBlitDepthProgram.useProgram();

    GLES30.glViewport(0, 0, surface.mWidth, surface.mHeight );

    GLES30.glUniform1i(mBlitDepthTextureH, 0);

    GLES30.glUniform1i(mBlitDepthDepthTextureH, 1);

    GLES30.glUniform1f( mBlitDepthDepthH , 1.0f-surface.mNear);

    GLES30.glVertexAttribPointer(mBlitDepthProgram.mAttribute[0], 2, GLES30.GL_FLOAT, false, 0, mQuadPositions);

    GLES30.glDrawArrays(GLES30.GL_TRIANGLE_STRIP, 0, 4);

    }

    if( !vertexCloned   )   mV.abortAll(false);

    if( !fragmentCloned )   mF.abortAll(false);

    if( !postprocessCloned) mP.abortAll(false);

    mV = null;

    mF = null;

    mNextID = 0;

    for(int i=0; i<EffectName.LENGTH; i++)

      {

      mEffectEnabled[i] = false;

      }

// PUBLIC API

///////////////////////////////////////////////////////////////////////////////////////////////////

 * Whatever we do not clone gets created just like in the default constructor.

 *

 * @param dc    Source object to create our object from

 * @param flags A bitmask of values specifying what to copy.

/**

    releasePriv();

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

/**

 *

 * @return ID of the object.

/**

 * Adds the calling class to the list of Listeners that get notified each time some event happens 

 * @param el A class implementing the EffectListener interface that wants to get notifications.

 */

    mF.registerForMessages(el);

    mM.registerForMessages(el);

///////////////////////////////////////////////////////////////////////////////////////////////////

/**

 * Removes the calling class from the list of Listeners.

 * 

 * @param el A class implementing the EffectListener interface that no longer wants to get notifications.

 */

    mF.deregisterForMessages(el);

    mM.deregisterForMessages(el);

///////////////////////////////////////////////////////////////////////////////////////////////////

/**

 * @return Number of effects aborted.

    return mM.abortAll(true) + mV.abortAll(true) + mF.abortAll(true);

    }

///////////////////////////////////////////////////////////////////////////////////////////////////

/**

    switch(type)

      case VERTEX     : return mV.abortAll(true);

      case FRAGMENT   : return mF.abortAll(true);

///////////////////////////////////////////////////////////////////////////////////////////////////

/**

 * Aborts all Effect by its ID.

 *

 * @param id the Id of the Effect to be removed, as returned by getID().

 * @return Number of effects aborted.

 */

  public int abortById(long id)

    {

    long type = id&EffectType.MASK;

    if( type == EffectType.VERTEX.ordinal()      ) return mV.removeById(id);

    if( type == EffectType.FRAGMENT.ordinal()    ) return mF.removeById(id);

    return 0;

    }

/**

 * Aborts a single Effect.

 * 

      {

      case VERTEX     : return mV.removeEffect(effect);

      case FRAGMENT   : return mF.removeEffect(effect);

///////////////////////////////////////////////////////////////////////////////////////////////////

/**

      case VERTEX     : return mV.removeByName(name);

      case FRAGMENT   : return mF.removeByName(name);

/**

 * Enables a given Effect.

 * <p>

 * By default, all effects are disabled. One has to explicitly enable each effect one intends to use.

 * This needs to be called BEFORE shaders get compiled, i.e. before the call to Distorted.onCreate().

 * The point: by enabling only the effects we need, we can optimize the shaders.

 *

/**

 * @return The maximum number of effects of a given type.

///////////////////////////////////////////////////////////////////////////////////////////////////

/**

 * <ul>

 * <li>the value of 'max' is outside permitted range (0 &le; max &le; Byte.MAX_VALUE)

 * <li>We try to increase the value of 'max' when it is too late to do so already. It needs to be called

 *     before the Vertex Shader gets compiled, i.e. before the call to {@link Distorted#onCreate}. After this

 *     time only decreasing the value of 'max' is permitted.

 * <li>Furthermore, this needs to be called before any instances of the DistortedEffects class get created.

 * </ul>

 *

 * @param max new maximum number of simultaneous effects. Has to be a non-negative number not greater

 * @return <code>true</code> if operation was successful, <code>false</code> otherwise.

 */

  @SuppressWarnings("unused")

///////////////////////////////////////////////////////////////////////////////////////////////////

/**

 * The higher the quality, the better the effect will look like and the slower it will be.

 * <p>

 * This works by rendering into smaller and smaller intermediate buffers. Each step renders into a

 * buffer that's half the size of the previous one.

 * <p>

 * We cannot this during mid-render - thus, give it to the Master to assign us back this job on the

 * next render.

 */

  public void setQuality(EffectQuality quality)

    {

    mJobs.add(new Job(MIPMAP,quality.level));

    DistortedMaster.newSlave(this);

    }

/**