1
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
2
|
// Copyright 2016 Leszek Koltunski //
|
3
|
// //
|
4
|
// This file is part of Distorted. //
|
5
|
// //
|
6
|
// Distorted is free software: you can redistribute it and/or modify //
|
7
|
// 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
|
// Distorted is distributed in the hope that it will be useful, //
|
12
|
// 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
|
// along with Distorted. If not, see <http://www.gnu.org/licenses/>. //
|
18
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
19
|
|
20
|
package org.distorted.library;
|
21
|
|
22
|
import java.util.ArrayList;
|
23
|
import java.util.HashMap;
|
24
|
|
25
|
import android.opengl.GLES20;
|
26
|
|
27
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
28
|
/**
|
29
|
* Class which represents a Node in a Tree of DistortedObjects.
|
30
|
*
|
31
|
* Having organized a set of DistortedObjects into a Tree, we can then render any Node to any Framebuffer.
|
32
|
* That recursively renders the Object held in the Node and all its children, along with whatever effects
|
33
|
* each one of them has.
|
34
|
*/
|
35
|
public class DistortedObjectTree
|
36
|
{
|
37
|
private static HashMap<ArrayList<Long>,NodeData> mMapNodeID = new HashMap<>();
|
38
|
private static long mNextNodeID =0;
|
39
|
|
40
|
private GridObject mGrid;
|
41
|
private DistortedEffectQueues mQueues;
|
42
|
private DistortedTexture mTexture;
|
43
|
private NodeData mData;
|
44
|
|
45
|
private DistortedObjectTree mParent;
|
46
|
private ArrayList<DistortedObjectTree> mChildren;
|
47
|
private int[] mNumChildren; // ==mChildren.length(), but we only create mChildren if the first one gets added
|
48
|
|
49
|
private class NodeData
|
50
|
{
|
51
|
long ID;
|
52
|
int numPointingNodes;
|
53
|
DistortedFramebuffer mDF;
|
54
|
boolean mRendered;
|
55
|
|
56
|
NodeData(long id)
|
57
|
{
|
58
|
ID = id;
|
59
|
numPointingNodes= 1;
|
60
|
mDF = null;
|
61
|
mRendered = false;
|
62
|
}
|
63
|
}
|
64
|
|
65
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
66
|
|
67
|
static void release()
|
68
|
{
|
69
|
mNextNodeID = 0;
|
70
|
mMapNodeID.clear();
|
71
|
}
|
72
|
|
73
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
74
|
|
75
|
private void markRecursive()
|
76
|
{
|
77
|
mData.mRendered = false;
|
78
|
|
79
|
synchronized(this)
|
80
|
{
|
81
|
for(int i=0; i<mNumChildren[0]; i++) mChildren.get(i).markRecursive();
|
82
|
}
|
83
|
}
|
84
|
|
85
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
86
|
|
87
|
private void drawRecursive(long currTime, DistortedFramebuffer df)
|
88
|
{
|
89
|
if( mNumChildren[0]<=0 )
|
90
|
{
|
91
|
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mTexture.mTextureDataH[0]);
|
92
|
}
|
93
|
else
|
94
|
{
|
95
|
if( !mData.mRendered )
|
96
|
{
|
97
|
mData.mRendered = true;
|
98
|
mData.mDF.setAsOutput();
|
99
|
|
100
|
GLES20.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
|
101
|
GLES20.glClear( GLES20.GL_DEPTH_BUFFER_BIT | GLES20.GL_COLOR_BUFFER_BIT);
|
102
|
|
103
|
if( mTexture.mBitmapSet[0] )
|
104
|
{
|
105
|
GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mTexture.mTextureDataH[0]);
|
106
|
mQueues.drawNoEffectsPriv(mTexture, mGrid, mData.mDF);
|
107
|
}
|
108
|
|
109
|
synchronized(this)
|
110
|
{
|
111
|
for(int i=0; i<mNumChildren[0]; i++)
|
112
|
{
|
113
|
mChildren.get(i).drawRecursive(currTime, mData.mDF);
|
114
|
}
|
115
|
}
|
116
|
}
|
117
|
|
118
|
df.setAsOutput();
|
119
|
mData.mDF.setAsInput();
|
120
|
}
|
121
|
|
122
|
mQueues.drawPriv(currTime, mTexture, mGrid, df);
|
123
|
}
|
124
|
|
125
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
126
|
// tree isomorphism
|
127
|
|
128
|
private void RecomputeNodeID(ArrayList<Long> prev)
|
129
|
{
|
130
|
ArrayList<Long> curr = generateIDList();
|
131
|
|
132
|
if( mParent==null )
|
133
|
{
|
134
|
adjustNodeData(prev,curr);
|
135
|
}
|
136
|
else
|
137
|
{
|
138
|
ArrayList<Long> parentPrev = mParent.generateIDList();
|
139
|
adjustNodeData(prev,curr);
|
140
|
mParent.RecomputeNodeID(parentPrev);
|
141
|
}
|
142
|
}
|
143
|
|
144
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
145
|
|
146
|
private ArrayList<Long> generateIDList()
|
147
|
{
|
148
|
ArrayList<Long> ret = new ArrayList<>();
|
149
|
|
150
|
ret.add( mNumChildren[0]>0 ? mTexture.getBitmapID() : mTexture.getID() );
|
151
|
DistortedObjectTree node;
|
152
|
|
153
|
for(int i=0; i<mNumChildren[0]; i++)
|
154
|
{
|
155
|
node = mChildren.get(i);
|
156
|
ret.add(node.mData.ID);
|
157
|
}
|
158
|
|
159
|
return ret;
|
160
|
}
|
161
|
|
162
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
163
|
|
164
|
private void adjustNodeData(ArrayList<Long> oldList, ArrayList<Long> newList)
|
165
|
{
|
166
|
boolean otherNodesPoint = (mData.numPointingNodes>1);
|
167
|
|
168
|
if( otherNodesPoint ) mData.numPointingNodes--;
|
169
|
else mMapNodeID.remove(oldList);
|
170
|
|
171
|
NodeData newData = mMapNodeID.get(newList);
|
172
|
|
173
|
if( newData==null )
|
174
|
{
|
175
|
if( otherNodesPoint ) mData = new NodeData(++mNextNodeID);
|
176
|
else mData.ID = ++mNextNodeID; // numPointingNodes must be 1 already
|
177
|
|
178
|
if( newList.size()>1 )
|
179
|
{
|
180
|
if( mData.mDF==null )
|
181
|
mData.mDF = new DistortedFramebuffer(mTexture.getWidth(), mTexture.getHeight());
|
182
|
}
|
183
|
else
|
184
|
{
|
185
|
if( mData.mDF!=null )
|
186
|
{
|
187
|
mData.mDF.markForDeletion();
|
188
|
mData.mDF = null;
|
189
|
}
|
190
|
else
|
191
|
{
|
192
|
android.util.Log.e("DistortedObjectTree", "adjustNodeData: impossible situation??");
|
193
|
}
|
194
|
}
|
195
|
|
196
|
mMapNodeID.put(newList, mData);
|
197
|
}
|
198
|
else
|
199
|
{
|
200
|
newData.numPointingNodes++;
|
201
|
mData = newData;
|
202
|
}
|
203
|
}
|
204
|
|
205
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
206
|
// this will be called on startup and every time OpenGL context has been lost
|
207
|
// also call this from the constructor if the OpenGL context has been created already.
|
208
|
|
209
|
static void reset()
|
210
|
{
|
211
|
NodeData tmp;
|
212
|
|
213
|
for(ArrayList<Long> key: mMapNodeID.keySet())
|
214
|
{
|
215
|
tmp = mMapNodeID.get(key);
|
216
|
|
217
|
if( tmp.mDF != null )
|
218
|
{
|
219
|
tmp.mDF.reset();
|
220
|
tmp.mRendered = false;
|
221
|
}
|
222
|
}
|
223
|
}
|
224
|
|
225
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
226
|
// Debug - print all the Node IDs
|
227
|
/*
|
228
|
void debug(int depth)
|
229
|
{
|
230
|
String tmp="";
|
231
|
int i;
|
232
|
|
233
|
for(i=0; i<depth; i++) tmp +=" ";
|
234
|
tmp += (""+mData.ID);
|
235
|
|
236
|
android.util.Log.e("node", tmp);
|
237
|
|
238
|
for(i=0; i<mNumChildren[0]; i++)
|
239
|
mChildren.get(i).debug(depth+1);
|
240
|
}
|
241
|
|
242
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
243
|
// Debug - print contents of the HashMap
|
244
|
|
245
|
static void debugMap()
|
246
|
{
|
247
|
NodeData tmp;
|
248
|
|
249
|
for(ArrayList<Long> key: mMapNodeID.keySet())
|
250
|
{
|
251
|
tmp = mMapNodeID.get(key);
|
252
|
|
253
|
android.util.Log.e("NODE", "key="+key+" NodeID: "+tmp.ID);
|
254
|
}
|
255
|
}
|
256
|
*/
|
257
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
258
|
// PUBLIC API
|
259
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
260
|
/**
|
261
|
* Constructs new Node of the Tree.
|
262
|
*
|
263
|
* @param texture DistortedTexture to put into the new Node.
|
264
|
* @param queues DistortedEffectQueues to put into the new Node.
|
265
|
* @param grid GridObject to put into the new Node.
|
266
|
*/
|
267
|
public DistortedObjectTree(DistortedTexture texture, DistortedEffectQueues queues, GridObject grid)
|
268
|
{
|
269
|
mTexture= texture;
|
270
|
mQueues = queues;
|
271
|
mGrid = grid;
|
272
|
mParent = null;
|
273
|
mChildren = null;
|
274
|
mNumChildren = new int[1];
|
275
|
mNumChildren[0] = 0;
|
276
|
|
277
|
ArrayList<Long> list = new ArrayList<>();
|
278
|
list.add(queues.getID()); // TODO: this should depend on both texture and queues! Maybe even on grid as well
|
279
|
|
280
|
mData = mMapNodeID.get(list);
|
281
|
|
282
|
if( mData!=null )
|
283
|
{
|
284
|
mData.numPointingNodes++;
|
285
|
}
|
286
|
else
|
287
|
{
|
288
|
mData = new NodeData(++mNextNodeID);
|
289
|
mMapNodeID.put(list, mData);
|
290
|
}
|
291
|
}
|
292
|
|
293
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
294
|
/**
|
295
|
* Copy-constructs new Node of the Tree from another Node.
|
296
|
*
|
297
|
* @param node The DistortedObjectTree to copy data from.
|
298
|
* @param flags bit field composed of a subset of the following:
|
299
|
* {@link Distorted#CLONE_BITMAP}, {@link Distorted#CLONE_MATRIX}, {@link Distorted#CLONE_VERTEX},
|
300
|
* {@link Distorted#CLONE_FRAGMENT} and {@link Distorted#CLONE_CHILDREN}.
|
301
|
* For example flags = CLONE_BITMAP | CLONE_CHILDREN.
|
302
|
*/
|
303
|
public DistortedObjectTree(DistortedObjectTree node, int flags)
|
304
|
{
|
305
|
mParent = null;
|
306
|
mTexture= new DistortedTexture(node.mTexture,flags);
|
307
|
mQueues = new DistortedEffectQueues(node.mQueues, flags);
|
308
|
mGrid = node.mGrid;
|
309
|
|
310
|
if( (flags & Distorted.CLONE_CHILDREN) != 0 )
|
311
|
{
|
312
|
mChildren = node.mChildren;
|
313
|
mNumChildren = node.mNumChildren;
|
314
|
}
|
315
|
else
|
316
|
{
|
317
|
mChildren = null;
|
318
|
mNumChildren = new int[1];
|
319
|
mNumChildren[0] = 0;
|
320
|
}
|
321
|
|
322
|
ArrayList<Long> list = generateIDList();
|
323
|
|
324
|
mData = mMapNodeID.get(list);
|
325
|
|
326
|
if( mData!=null )
|
327
|
{
|
328
|
mData.numPointingNodes++;
|
329
|
}
|
330
|
else
|
331
|
{
|
332
|
mData = new NodeData(++mNextNodeID);
|
333
|
mMapNodeID.put(list, mData);
|
334
|
}
|
335
|
}
|
336
|
|
337
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
338
|
/**
|
339
|
* Adds a new child to the last position in the list of our Node's children.
|
340
|
*
|
341
|
* @param node The new Node to add.
|
342
|
*/
|
343
|
public synchronized void attach(DistortedObjectTree node)
|
344
|
{
|
345
|
ArrayList<Long> prev = generateIDList();
|
346
|
|
347
|
if( mChildren==null ) mChildren = new ArrayList<>(2);
|
348
|
|
349
|
node.mParent = this;
|
350
|
mChildren.add(node);
|
351
|
mNumChildren[0]++;
|
352
|
|
353
|
RecomputeNodeID(prev);
|
354
|
}
|
355
|
|
356
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
357
|
/**
|
358
|
* Adds a new child to the last position in the list of our Node's children.
|
359
|
*
|
360
|
* @param texture DistortedTexture to initialize our child Node with.
|
361
|
* @param queues DistortedEffectQueues to initialize our child Node with.
|
362
|
* @param grid GridObject to initialize our child Node with.
|
363
|
* @return the newly constructed child Node, or null if we couldn't allocate resources.
|
364
|
*/
|
365
|
public synchronized DistortedObjectTree attach(DistortedTexture texture, DistortedEffectQueues queues, GridObject grid)
|
366
|
{
|
367
|
ArrayList<Long> prev = generateIDList();
|
368
|
|
369
|
if( mChildren==null ) mChildren = new ArrayList<>(2);
|
370
|
DistortedObjectTree node = new DistortedObjectTree(texture,queues,grid);
|
371
|
node.mParent = this;
|
372
|
mChildren.add(node);
|
373
|
mNumChildren[0]++;
|
374
|
|
375
|
RecomputeNodeID(prev);
|
376
|
|
377
|
return node;
|
378
|
}
|
379
|
|
380
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
381
|
/**
|
382
|
* Removes the first occurrence of a specified child from the list of children of our Node.
|
383
|
*
|
384
|
* @param node The Node to remove.
|
385
|
* @return <code>true</code> if the child was successfully removed.
|
386
|
*/
|
387
|
public synchronized boolean detach(DistortedObjectTree node)
|
388
|
{
|
389
|
if( mNumChildren[0]>0 )
|
390
|
{
|
391
|
ArrayList<Long> prev = generateIDList();
|
392
|
|
393
|
if( mChildren.remove(node) )
|
394
|
{
|
395
|
node.mParent = null;
|
396
|
mNumChildren[0]--;
|
397
|
|
398
|
RecomputeNodeID(prev);
|
399
|
|
400
|
return true;
|
401
|
}
|
402
|
}
|
403
|
|
404
|
return false;
|
405
|
}
|
406
|
|
407
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
408
|
/**
|
409
|
* Removes the first occurrence of a specified child from the list of children of our Node.
|
410
|
*
|
411
|
* @param queues DistortedEffectQueues to remove.
|
412
|
* @return <code>true</code> if the child was successfully removed.
|
413
|
*/
|
414
|
public synchronized boolean detach(DistortedEffectQueues queues)
|
415
|
{
|
416
|
long id = queues.getID();
|
417
|
DistortedObjectTree node;
|
418
|
|
419
|
for(int i=0; i<mNumChildren[0]; i++)
|
420
|
{
|
421
|
node = mChildren.get(i);
|
422
|
|
423
|
if( node.mQueues.getID()==id )
|
424
|
{
|
425
|
ArrayList<Long> prev = generateIDList();
|
426
|
|
427
|
node.mParent = null;
|
428
|
mChildren.remove(i);
|
429
|
mNumChildren[0]--;
|
430
|
|
431
|
RecomputeNodeID(prev);
|
432
|
|
433
|
return true;
|
434
|
}
|
435
|
}
|
436
|
|
437
|
return false;
|
438
|
}
|
439
|
|
440
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
441
|
/**
|
442
|
* Removes all children Nodes.
|
443
|
*/
|
444
|
public synchronized void detachAll()
|
445
|
{
|
446
|
for(int i=0; i<mNumChildren[0]; i++)
|
447
|
{
|
448
|
mChildren.get(i).mParent = null;
|
449
|
}
|
450
|
|
451
|
if( mNumChildren[0]>0 )
|
452
|
{
|
453
|
ArrayList<Long> prev = generateIDList();
|
454
|
|
455
|
mNumChildren[0] = 0;
|
456
|
mChildren.clear();
|
457
|
RecomputeNodeID(prev);
|
458
|
}
|
459
|
}
|
460
|
|
461
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
462
|
/**
|
463
|
* Draws the Node, and all its children, to the default framebuffer 0 (i.e. the screen).
|
464
|
*
|
465
|
* @param currTime Current time, in milliseconds.
|
466
|
*/
|
467
|
public void draw(long currTime)
|
468
|
{
|
469
|
GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);
|
470
|
markRecursive();
|
471
|
drawRecursive(currTime,Distorted.mFramebuffer);
|
472
|
}
|
473
|
|
474
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
475
|
/**
|
476
|
* Draws the Node, and all its children, to the Framebuffer passed.
|
477
|
*
|
478
|
* @param currTime Current time, in milliseconds.
|
479
|
* @param df Framebuffer to render this to.
|
480
|
*/
|
481
|
public void draw(long currTime, DistortedFramebuffer df)
|
482
|
{
|
483
|
df.setAsOutput();
|
484
|
markRecursive();
|
485
|
drawRecursive(currTime,df);
|
486
|
}
|
487
|
|
488
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
489
|
/**
|
490
|
* Returns the DistortedEffectQueues object that's in the Node.
|
491
|
*
|
492
|
* @return The DistortedEffectQueues contained in the Node.
|
493
|
*/
|
494
|
public DistortedEffectQueues getQueues()
|
495
|
{
|
496
|
return mQueues;
|
497
|
}
|
498
|
|
499
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
500
|
/**
|
501
|
* Returns the DistortedTexture object that's in the Node.
|
502
|
*
|
503
|
* @return The DistortedTexture contained in the Node.
|
504
|
*/
|
505
|
public DistortedTexture getTexture()
|
506
|
{
|
507
|
return mTexture;
|
508
|
}
|
509
|
|
510
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
511
|
}
|
512
|
|