Project

General

Profile

Download (7.23 KB) Statistics
| Branch: | Revision:

library / src / main / java / org / distorted / library / main / DistortedScreen.java @ b7074bc6

1 c5369f1b leszek
///////////////////////////////////////////////////////////////////////////////////////////////////
2 9b94626c Leszek Koltunski
// Copyright 2016 Leszek Koltunski                                                               //
3 c5369f1b leszek
//                                                                                               //
4 46b572b5 Leszek Koltunski
// This file is part of Distorted.                                                               //
5 c5369f1b leszek
//                                                                                               //
6 46b572b5 Leszek Koltunski
// Distorted is free software: you can redistribute it and/or modify                             //
7 c5369f1b leszek
// it under the terms of the GNU General Public License as published by                          //
8
// the Free Software Foundation, either version 2 of the License, or                             //
9
// (at your option) any later version.                                                           //
10
//                                                                                               //
11 46b572b5 Leszek Koltunski
// Distorted is distributed in the hope that it will be useful,                                  //
12 c5369f1b leszek
// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //
13
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //
14
// GNU General Public License for more details.                                                  //
15
//                                                                                               //
16
// You should have received a copy of the GNU General Public License                             //
17 46b572b5 Leszek Koltunski
// along with Distorted.  If not, see <http://www.gnu.org/licenses/>.                            //
18 c5369f1b leszek
///////////////////////////////////////////////////////////////////////////////////////////////////
19
20 fe82a979 Leszek Koltunski
package org.distorted.library.main;
21 c5369f1b leszek
22
///////////////////////////////////////////////////////////////////////////////////////////////////
23 806ca386 leszek
24 86e99907 leszek
import android.graphics.Bitmap;
25
import android.graphics.Canvas;
26
import android.graphics.Paint;
27 b7074bc6 Leszek Koltunski
import android.opengl.GLES30;
28 806ca386 leszek
29 81b1577b Leszek Koltunski
import org.distorted.library.effect.MatrixEffectMove;
30 1b059065 Leszek Koltunski
import org.distorted.library.effect.MatrixEffectScale;
31 e1e94682 Leszek Koltunski
import org.distorted.library.mesh.MeshQuad;
32 86e99907 leszek
import org.distorted.library.type.Static3D;
33
34 c5369f1b leszek
/**
35
 * Class which represents the Screen.
36
 * <p>
37
 * User is able to render to it just like to a DistortedFramebuffer.
38
 */
39 040cd18c Leszek Koltunski
public class DistortedScreen extends DistortedFramebuffer
40 c5369f1b leszek
  {
41 86e99907 leszek
  ///// DEBUGGING ONLY /////////////////////////
42
  private static final int NUM_FRAMES  = 100;
43 4aa38649 Leszek Koltunski
  private static final int FPS_W       = 120;
44
  private static final int FPS_H       =  70;
45
46
  private boolean mShowFPS;
47 86e99907 leszek
48 e1e94682 Leszek Koltunski
  private MeshQuad fpsMesh;
49 86e99907 leszek
  private DistortedTexture fpsTexture;
50
  private DistortedEffects fpsEffects;
51
  private Canvas fpsCanvas;
52
  private Bitmap fpsBitmap;
53
  private Paint mPaint;
54 040cd18c Leszek Koltunski
  private String fpsString;
55 86e99907 leszek
  private long lastTime=0;
56
  private long[] durations;
57
  private int currDuration;
58 c0f5af7b Leszek Koltunski
  private static Static3D mMoveVector = new Static3D(0,0,0);
59 7bebb196 Leszek Koltunski
  private static MatrixEffectMove mMoveEffect = new MatrixEffectMove(mMoveVector);
60 040cd18c Leszek Koltunski
  ///// END DEBUGGING //////////////////////////
61 86e99907 leszek
62 9b94626c Leszek Koltunski
  private int mCurRenderedFBO;    // During the first FBO_QUEUE_SIZE frames, we blit the very first
63
  private int mToBeBlittedFBO;    // FBO one we have rendered. Then, we keep blitting the one we
64
  private boolean mFirstCircle;   // rendered FBO_QUEUE_SIZE ago.
65 9d845904 Leszek Koltunski
66 c5369f1b leszek
///////////////////////////////////////////////////////////////////////////////////////////////////
67 040cd18c Leszek Koltunski
// PUBLIC API
68
///////////////////////////////////////////////////////////////////////////////////////////////////
69
/**
70
 * Create a new Screen. Initially 1x1 in size.
71
 * <p>
72 9ecac8cd Leszek Koltunski
 * Has to be followed by a 'resizeFBO()' to set the size.
73 040cd18c Leszek Koltunski
 */
74
  public DistortedScreen()
75
    {
76 7602a827 Leszek Koltunski
    super(DistortedLibrary.FBO_QUEUE_SIZE,1,BOTH_DEPTH_STENCIL, TYPE_SYST, 1,1);
77 040cd18c Leszek Koltunski
    mShowFPS = false;
78 9b94626c Leszek Koltunski
    mCurRenderedFBO = 0;
79
    mToBeBlittedFBO = 0;
80
    mFirstCircle = true;
81 040cd18c Leszek Koltunski
    }
82 c5369f1b leszek
83 26a4e5f6 leszek
///////////////////////////////////////////////////////////////////////////////////////////////////
84 040cd18c Leszek Koltunski
/**
85
 * Draws all the attached children to this OutputSurface.
86
 * <p>
87
 * Must be called from a thread holding OpenGL Context.
88
 *
89
 * @param time Current time, in milliseconds. This will be passed to all the Effects stored in the children Nodes.
90
 * @return Number of objects rendered.
91
 */
92
  public int render(long time)
93
    {
94
    if( mShowFPS )
95
      {
96
      if( lastTime==0 ) lastTime = time;
97 26a4e5f6 leszek
98 040cd18c Leszek Koltunski
      currDuration++;
99
      if (currDuration >= NUM_FRAMES) currDuration = 0;
100
      durations[NUM_FRAMES] += ((time - lastTime) - durations[currDuration]);
101
      durations[currDuration] = time - lastTime;
102
103
      fpsString = "" + ((int)(10000.0f*NUM_FRAMES/durations[NUM_FRAMES]))/10.0f;
104
105
      mPaint.setColor(0xffffffff);
106 4aa38649 Leszek Koltunski
      fpsCanvas.drawRect(0, 0, FPS_W, FPS_H, mPaint);
107 040cd18c Leszek Koltunski
      mPaint.setColor(0xff000000);
108 6bce98fc Leszek Koltunski
      fpsCanvas.drawText(fpsString, 0.5f*FPS_W, 0.75f*FPS_H, mPaint);
109 040cd18c Leszek Koltunski
      fpsTexture.setTexture(fpsBitmap);
110
111 c0f5af7b Leszek Koltunski
      mMoveVector.set( (-mWidth+FPS_W)/2 +5, (mHeight-FPS_H)/2 -5, 0);
112 7bebb196 Leszek Koltunski
113 040cd18c Leszek Koltunski
      lastTime = time;
114
      }
115
116 9b94626c Leszek Koltunski
    int numrender = super.render(time,mCurRenderedFBO);
117 040cd18c Leszek Koltunski
118 b7074bc6 Leszek Koltunski
    GLES30.glBindFramebuffer(GLES30.GL_FRAMEBUFFER, 0);
119 2301cb2f Leszek Koltunski
120 7602a827 Leszek Koltunski
    // workaround for the Mali issues: blit the framebuffer we have computed DistortedLibrary.FBO_QUEUE_SIZE
121 2301cb2f Leszek Koltunski
    // frames ago. Looks like FBO_QUEUE_SIZE=2 solves the issue already but I decided to play it safe and
122
    // make it equal to 3.
123
    // This of course introduces a delay and uses more memory, but it does not appear to have any effect
124
    // on speed. Maybe a slight positive effect if any!
125 9b94626c Leszek Koltunski
    setAsInput(mToBeBlittedFBO,0);
126 2301cb2f Leszek Koltunski
127 b7074bc6 Leszek Koltunski
    GLES30.glColorMask(true,true,true,true);
128
    GLES30.glDepthMask(false);
129
    GLES30.glDisable(GLES30.GL_STENCIL_TEST);
130
    GLES30.glDisable(GLES30.GL_DEPTH_TEST);
131
    GLES30.glDisable(GLES30.GL_BLEND);
132 040cd18c Leszek Koltunski
133 7602a827 Leszek Koltunski
    DistortedLibrary.blitPriv(this);
134 040cd18c Leszek Koltunski
135
    if( mShowFPS && fpsTexture.setAsInput())
136
      {
137 c90aca24 Leszek Koltunski
      DistortedLibrary.drawPriv(fpsEffects, fpsMesh, this, time);
138 040cd18c Leszek Koltunski
      }
139
140 7602a827 Leszek Koltunski
    if( ++mCurRenderedFBO>= DistortedLibrary.FBO_QUEUE_SIZE )
141 9b94626c Leszek Koltunski
      {
142
      mCurRenderedFBO = 0;
143
      if (mFirstCircle) mFirstCircle = false;
144
      }
145 7602a827 Leszek Koltunski
    if( !mFirstCircle && ++mToBeBlittedFBO>= DistortedLibrary.FBO_QUEUE_SIZE )
146 9b94626c Leszek Koltunski
      {
147
      mToBeBlittedFBO=0;
148
      }
149
150 040cd18c Leszek Koltunski
    return numrender+1;
151
    }
152
153
///////////////////////////////////////////////////////////////////////////////////////////////////
154
/**
155
 * Make the library show Frames Per Second in the upper-left corner.
156
 * <p>
157
 */
158
  public void showFPS()
159 26a4e5f6 leszek
    {
160 01b9a241 Leszek Koltunski
    if( !mShowFPS )
161
      {
162
      mShowFPS = true;
163
      fpsString = "";
164 4aa38649 Leszek Koltunski
      fpsBitmap = Bitmap.createBitmap(FPS_W, FPS_H, Bitmap.Config.ARGB_8888);
165 e1e94682 Leszek Koltunski
      fpsMesh = new MeshQuad();
166 c90aca24 Leszek Koltunski
      fpsTexture = new DistortedTexture();
167 01b9a241 Leszek Koltunski
      fpsTexture.setTexture(fpsBitmap);
168
      fpsCanvas = new Canvas(fpsBitmap);
169 044b5494 Leszek Koltunski
      fpsEffects = new DistortedEffects();
170 1b059065 Leszek Koltunski
      fpsEffects.apply( new MatrixEffectScale( new Static3D(FPS_W,FPS_H,1) ) );
171 01b9a241 Leszek Koltunski
      fpsEffects.apply(mMoveEffect);
172
173
      mPaint = new Paint();
174
      mPaint.setAntiAlias(true);
175
      mPaint.setTextAlign(Paint.Align.CENTER);
176 4aa38649 Leszek Koltunski
      mPaint.setTextSize(0.7f * FPS_H);
177 01b9a241 Leszek Koltunski
178
      durations = new long[NUM_FRAMES + 1];
179
      currDuration = 0;
180
181 7bebb196 Leszek Koltunski
      for (int i=0; i<NUM_FRAMES+1; i++) durations[i] = 16;  // Assume FPS will be
182
      durations[NUM_FRAMES] = NUM_FRAMES * 16;               // close to 1000/16 ~ 60
183 01b9a241 Leszek Koltunski
      }
184 c5369f1b leszek
    }
185 9b94626c Leszek Koltunski
  }