1 |
f6fb3c6d
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
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 |
194ab46f
|
Leszek Koltunski
|
import android.opengl.GLES30;
|
23 |
f6fb3c6d
|
Leszek Koltunski
|
|
24 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
25 |
dedacd82
|
Leszek Koltunski
|
/**
|
26 |
|
|
* Class which represents a OpenGL Framebuffer object.
|
27 |
71c3fecc
|
Leszek Koltunski
|
* <p>
|
28 |
c5369f1b
|
leszek
|
* User is able to create offscreen FBOs and both a) render to them b) use their COLOR0 attachment as
|
29 |
|
|
* an input texture.
|
30 |
dedacd82
|
Leszek Koltunski
|
*/
|
31 |
af4cc5db
|
Leszek Koltunski
|
public class DistortedFramebuffer extends DistortedOutputSurface implements DistortedInputSurface
|
32 |
f6fb3c6d
|
Leszek Koltunski
|
{
|
33 |
bd3da5b2
|
Leszek Koltunski
|
|
34 |
f6fb3c6d
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
35 |
6537ba91
|
Leszek Koltunski
|
// Must be called from a thread holding OpenGL Context
|
36 |
227ac49a
|
Leszek Koltunski
|
// Watch out - this has the side-effect of binding a Texture and a Framebuffer!
|
37 |
f6fb3c6d
|
Leszek Koltunski
|
|
38 |
f8377ef8
|
leszek
|
void create()
|
39 |
f6fb3c6d
|
Leszek Koltunski
|
{
|
40 |
133cbb2b
|
Leszek Koltunski
|
if( mColorH[0]==NOT_CREATED_YET )
|
41 |
7cf783cb
|
Leszek Koltunski
|
{
|
42 |
133cbb2b
|
Leszek Koltunski
|
GLES30.glGenTextures(1, mColorH, 0);
|
43 |
|
|
GLES30.glBindTexture(GLES30.GL_TEXTURE_2D, mColorH[0]);
|
44 |
194ab46f
|
Leszek Koltunski
|
GLES30.glTexParameteri(GLES30.GL_TEXTURE_2D, GLES30.GL_TEXTURE_WRAP_S, GLES30.GL_REPEAT);
|
45 |
|
|
GLES30.glTexParameteri(GLES30.GL_TEXTURE_2D, GLES30.GL_TEXTURE_WRAP_T, GLES30.GL_REPEAT);
|
46 |
|
|
GLES30.glTexParameterf(GLES30.GL_TEXTURE_2D, GLES30.GL_TEXTURE_MIN_FILTER, GLES30.GL_NEAREST);
|
47 |
|
|
GLES30.glTexParameterf(GLES30.GL_TEXTURE_2D, GLES30.GL_TEXTURE_MAG_FILTER, GLES30.GL_LINEAR);
|
48 |
133cbb2b
|
Leszek Koltunski
|
GLES30.glTexImage2D(GLES30.GL_TEXTURE_2D, 0, GLES30.GL_RGBA, mSizeX, mSizeY, 0, GLES30.GL_RGBA, GLES30.GL_UNSIGNED_BYTE, null);
|
49 |
194ab46f
|
Leszek Koltunski
|
|
50 |
133cbb2b
|
Leszek Koltunski
|
GLES30.glGenFramebuffers(1, mFBOH, 0);
|
51 |
|
|
GLES30.glBindFramebuffer(GLES30.GL_FRAMEBUFFER, mFBOH[0]);
|
52 |
|
|
GLES30.glFramebufferTexture2D(GLES30.GL_FRAMEBUFFER, GLES30.GL_COLOR_ATTACHMENT0, GLES30.GL_TEXTURE_2D, mColorH[0], 0);
|
53 |
dedacd82
|
Leszek Koltunski
|
|
54 |
8337fa41
|
Leszek Koltunski
|
checkStatus("color");
|
55 |
7cf783cb
|
Leszek Koltunski
|
}
|
56 |
133cbb2b
|
Leszek Koltunski
|
if( mDepthEnabled && mDepthH[0]==NOT_CREATED_YET ) // we need to create a new DEPTH attachment
|
57 |
8c327653
|
Leszek Koltunski
|
{
|
58 |
133cbb2b
|
Leszek Koltunski
|
GLES30.glGenTextures(1, mDepthH, 0);
|
59 |
|
|
GLES30.glBindTexture(GLES30.GL_TEXTURE_2D, mDepthH[0]);
|
60 |
194ab46f
|
Leszek Koltunski
|
GLES30.glTexParameteri(GLES30.GL_TEXTURE_2D, GLES30.GL_TEXTURE_WRAP_S, GLES30.GL_REPEAT);
|
61 |
|
|
GLES30.glTexParameteri(GLES30.GL_TEXTURE_2D, GLES30.GL_TEXTURE_WRAP_T, GLES30.GL_REPEAT);
|
62 |
|
|
GLES30.glTexParameteri(GLES30.GL_TEXTURE_2D, GLES30.GL_TEXTURE_MIN_FILTER, GLES30.GL_NEAREST);
|
63 |
|
|
GLES30.glTexParameteri(GLES30.GL_TEXTURE_2D, GLES30.GL_TEXTURE_MAG_FILTER, GLES30.GL_NEAREST);
|
64 |
133cbb2b
|
Leszek Koltunski
|
GLES30.glTexImage2D(GLES30.GL_TEXTURE_2D, 0, GLES30.GL_DEPTH_COMPONENT, mSizeX, mSizeY, 0, GLES30.GL_DEPTH_COMPONENT, GLES30.GL_UNSIGNED_SHORT, null);
|
65 |
8c327653
|
Leszek Koltunski
|
|
66 |
133cbb2b
|
Leszek Koltunski
|
GLES30.glBindFramebuffer(GLES30.GL_FRAMEBUFFER, mFBOH[0]);
|
67 |
|
|
GLES30.glFramebufferTexture2D(GLES30.GL_FRAMEBUFFER, GLES30.GL_DEPTH_ATTACHMENT, GLES30.GL_TEXTURE_2D, mDepthH[0], 0);
|
68 |
8c327653
|
Leszek Koltunski
|
|
69 |
8337fa41
|
Leszek Koltunski
|
checkStatus("depth");
|
70 |
8c327653
|
Leszek Koltunski
|
}
|
71 |
f8377ef8
|
leszek
|
if( !mDepthEnabled && mDepthH[0]!=NOT_CREATED_YET ) // we need to detach and recreate the DEPTH attachment.
|
72 |
8c327653
|
Leszek Koltunski
|
{
|
73 |
133cbb2b
|
Leszek Koltunski
|
GLES30.glDeleteTextures(1, mDepthH, 0);
|
74 |
|
|
mDepthH[0]=NOT_CREATED_YET;
|
75 |
8c327653
|
Leszek Koltunski
|
}
|
76 |
8337fa41
|
Leszek Koltunski
|
}
|
77 |
|
|
|
78 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
79 |
|
|
|
80 |
|
|
private boolean checkStatus(String message)
|
81 |
|
|
{
|
82 |
194ab46f
|
Leszek Koltunski
|
int status = GLES30.glCheckFramebufferStatus(GLES30.GL_FRAMEBUFFER);
|
83 |
8337fa41
|
Leszek Koltunski
|
|
84 |
194ab46f
|
Leszek Koltunski
|
if(status != GLES30.GL_FRAMEBUFFER_COMPLETE)
|
85 |
8337fa41
|
Leszek Koltunski
|
{
|
86 |
|
|
android.util.Log.e("DistortedFramebuffer", "FRAMEBUFFER INCOMPLETE, "+message+" error="+status);
|
87 |
|
|
|
88 |
133cbb2b
|
Leszek Koltunski
|
GLES30.glDeleteTextures(1, mColorH, 0);
|
89 |
|
|
GLES30.glDeleteTextures(1, mDepthH, 0);
|
90 |
|
|
GLES30.glDeleteFramebuffers(1, mFBOH, 0);
|
91 |
|
|
mFBOH[0] = 0;
|
92 |
|
|
mColorH[0] = FAILED_TO_CREATE;
|
93 |
|
|
mDepthH[0] = FAILED_TO_CREATE;
|
94 |
8337fa41
|
Leszek Koltunski
|
|
95 |
|
|
return false;
|
96 |
|
|
}
|
97 |
8c327653
|
Leszek Koltunski
|
|
98 |
f6fb3c6d
|
Leszek Koltunski
|
return true;
|
99 |
|
|
}
|
100 |
|
|
|
101 |
|
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
102 |
6537ba91
|
Leszek Koltunski
|
// Must be called from a thread holding OpenGL Context
|
103 |
f6fb3c6d
|
Leszek Koltunski
|
|
104 |
227ac49a
|
Leszek Koltunski
|
void delete()
|
105 |
f6fb3c6d
|
Leszek Koltunski
|
{
|
106 |
133cbb2b
|
Leszek Koltunski
|
if( mColorH[0]>=0 )
|
107 |
e6cf7d50
|
Leszek Koltunski
|
{
|
108 |
133cbb2b
|
Leszek Koltunski
|
if( mDepthH[0]>=0 )
|
109 |
8c327653
|
Leszek Koltunski
|
{
|
110 |
133cbb2b
|
Leszek Koltunski
|
GLES30.glDeleteTextures(1, mDepthH, 0);
|
111 |
|
|
mDepthH[0]=NOT_CREATED_YET;
|
112 |
8c327653
|
Leszek Koltunski
|
}
|
113 |
|
|
|
114 |
133cbb2b
|
Leszek Koltunski
|
GLES30.glDeleteTextures(1, mColorH, 0);
|
115 |
|
|
mColorH[0] = NOT_CREATED_YET;
|
116 |
bd3da5b2
|
Leszek Koltunski
|
|
117 |
133cbb2b
|
Leszek Koltunski
|
GLES30.glDeleteFramebuffers(1, mFBOH, 0);
|
118 |
|
|
mFBOH[0] = 0;
|
119 |
e6cf7d50
|
Leszek Koltunski
|
}
|
120 |
bd3da5b2
|
Leszek Koltunski
|
}
|
121 |
|
|
|
122 |
4ebbb17a
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
123 |
|
|
// called from onDestroy(); mark OpenGL assets as 'not created'
|
124 |
|
|
|
125 |
f8377ef8
|
leszek
|
void recreate()
|
126 |
4ebbb17a
|
Leszek Koltunski
|
{
|
127 |
|
|
if( mColorH[0]!=DONT_CREATE ) mColorH[0] = NOT_CREATED_YET;
|
128 |
|
|
if( mDepthEnabled ) mDepthH[0] = NOT_CREATED_YET;
|
129 |
|
|
}
|
130 |
|
|
|
131 |
86eb00a9
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
132 |
|
|
// if new size fits into the size of the underlying Texture, just change the projection without
|
133 |
|
|
// reallocating the Texture. Otherwise, we need to reallocate.
|
134 |
|
|
//
|
135 |
af4cc5db
|
Leszek Koltunski
|
// Must be called from a thread holding the OpenGL context.
|
136 |
86eb00a9
|
Leszek Koltunski
|
|
137 |
|
|
void resizeFast(int width, int height)
|
138 |
|
|
{
|
139 |
af4cc5db
|
Leszek Koltunski
|
if( mWidth!=width || mHeight!=height )
|
140 |
86eb00a9
|
Leszek Koltunski
|
{
|
141 |
af4cc5db
|
Leszek Koltunski
|
mWidth = width;
|
142 |
|
|
mHeight= height;
|
143 |
|
|
createProjection();
|
144 |
|
|
|
145 |
c5369f1b
|
leszek
|
if( width> mSizeX || height> mSizeY)
|
146 |
86eb00a9
|
Leszek Koltunski
|
{
|
147 |
c5369f1b
|
leszek
|
mSizeX = width;
|
148 |
|
|
mSizeY = height;
|
149 |
133cbb2b
|
Leszek Koltunski
|
delete();
|
150 |
86eb00a9
|
Leszek Koltunski
|
}
|
151 |
|
|
}
|
152 |
cc0734e7
|
Leszek Koltunski
|
|
153 |
133cbb2b
|
Leszek Koltunski
|
create();
|
154 |
86eb00a9
|
Leszek Koltunski
|
}
|
155 |
|
|
|
156 |
af27df87
|
leszek
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
157 |
|
|
// create 'system' Framebuffers, i.e. those that are used internally by the library.
|
158 |
|
|
// Those do not get removed in onDestroy();
|
159 |
|
|
|
160 |
a436ccc5
|
leszek
|
DistortedFramebuffer(boolean depthEnabled, int width, int height)
|
161 |
af27df87
|
leszek
|
{
|
162 |
a436ccc5
|
leszek
|
super(width,height,NOT_CREATED_YET,NOT_CREATED_YET,true, depthEnabled);
|
163 |
af27df87
|
leszek
|
}
|
164 |
|
|
|
165 |
f6fb3c6d
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
166 |
|
|
// PUBLIC API
|
167 |
dedacd82
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
168 |
cdd5e827
|
Leszek Koltunski
|
/**
|
169 |
|
|
* Create a new offscreen Framebuffer.
|
170 |
|
|
*
|
171 |
|
|
* @param width Width of the COLOR attachment.
|
172 |
|
|
* @param height Height of the COLOR attachment.
|
173 |
|
|
* @param depthEnabled Add DEPTH attachment?
|
174 |
|
|
*/
|
175 |
|
|
@SuppressWarnings("unused")
|
176 |
|
|
public DistortedFramebuffer(int width, int height, boolean depthEnabled)
|
177 |
|
|
{
|
178 |
a436ccc5
|
leszek
|
super(width,height,NOT_CREATED_YET,NOT_CREATED_YET,false, depthEnabled);
|
179 |
cdd5e827
|
Leszek Koltunski
|
}
|
180 |
|
|
|
181 |
133cbb2b
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
182 |
|
|
|
183 |
dedacd82
|
Leszek Koltunski
|
/**
|
184 |
57578636
|
Leszek Koltunski
|
* Create a new offscreen Framebuffer.
|
185 |
dedacd82
|
Leszek Koltunski
|
*
|
186 |
|
|
* @param width Width of the COLOR attachment.
|
187 |
|
|
* @param height Height of the COLOR attachment.
|
188 |
|
|
*/
|
189 |
1942537e
|
Leszek Koltunski
|
@SuppressWarnings("unused")
|
190 |
ed13a5de
|
Leszek Koltunski
|
public DistortedFramebuffer(int width, int height)
|
191 |
f6fb3c6d
|
Leszek Koltunski
|
{
|
192 |
a436ccc5
|
leszek
|
super(width,height,NOT_CREATED_YET,NOT_CREATED_YET,false,false);
|
193 |
f6fb3c6d
|
Leszek Koltunski
|
}
|
194 |
|
|
|
195 |
b448e6b9
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
196 |
dedacd82
|
Leszek Koltunski
|
/**
|
197 |
c5369f1b
|
leszek
|
* Bind the underlying rectangle of pixels as a OpenGL Texture.
|
198 |
af4cc5db
|
Leszek Koltunski
|
*
|
199 |
a436ccc5
|
leszek
|
* @return <code>true</code> if successful.
|
200 |
dedacd82
|
Leszek Koltunski
|
*/
|
201 |
c5369f1b
|
leszek
|
public boolean setAsInput()
|
202 |
b448e6b9
|
Leszek Koltunski
|
{
|
203 |
c5369f1b
|
leszek
|
if( mColorH[0]>0 )
|
204 |
|
|
{
|
205 |
|
|
GLES30.glBindTexture(GLES30.GL_TEXTURE_2D, mColorH[0]);
|
206 |
|
|
return true;
|
207 |
|
|
}
|
208 |
|
|
|
209 |
|
|
return false;
|
210 |
|
|
}
|
211 |
2e49718d
|
Leszek Koltunski
|
|
212 |
d1e740c5
|
Leszek Koltunski
|
///////////////////////////////////////////////////////////////////////////////////////////////////
|
213 |
|
|
/**
|
214 |
09d4f4b1
|
Leszek Koltunski
|
* Return the ID of the Texture (COLOR attachment 0) that's backing this FBO.
|
215 |
|
|
* <p>
|
216 |
|
|
* Catch: this will only work if the library has had time to actually create the texture. Remember
|
217 |
|
|
* that the texture gets created only on first render, thus creating a Texture object and immediately
|
218 |
|
|
* calling this method will return an invalid (negative) result.
|
219 |
|
|
*
|
220 |
ab12f06b
|
Leszek Koltunski
|
* @return If there was not a single render between creation of the Object and calling this method on
|
221 |
|
|
* it, return a negative value. Otherwise, return ID of COLOR attachment 0.
|
222 |
d1e740c5
|
Leszek Koltunski
|
*/
|
223 |
09d4f4b1
|
Leszek Koltunski
|
public int getTextureID()
|
224 |
d1e740c5
|
Leszek Koltunski
|
{
|
225 |
133cbb2b
|
Leszek Koltunski
|
return mColorH[0];
|
226 |
8c327653
|
Leszek Koltunski
|
}
|
227 |
f6fb3c6d
|
Leszek Koltunski
|
}
|