/src/main/java/org/distorted/library/main/InternalBuffer.java - Annotate - Distorted Android

library / src / main / java / org / distorted / library / main / InternalBuffer.java @ de77a6c5

1	466450b5	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
2			// Copyright 2018 Leszek Koltunski //
3			// //
4	46b572b5	Leszek Koltunski	// This file is part of Distorted. //
5	466450b5	Leszek Koltunski	// //
6	46b572b5	Leszek Koltunski	// Distorted is free software: you can redistribute it and/or modify //
7	466450b5	Leszek Koltunski	// 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	466450b5	Leszek Koltunski	// 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	466450b5	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
19
20			package org.distorted.library.main;
21
22	b7074bc6	Leszek Koltunski	import android.opengl.GLES30;
23	0bd9f644	Leszek Koltunski
24			import java.nio.Buffer;
25	22e60fba	Leszek Koltunski	import java.nio.ByteBuffer;
26			import java.nio.ByteOrder;
27			import java.nio.FloatBuffer;
28	0bd9f644	Leszek Koltunski	import java.nio.IntBuffer;
29	466450b5	Leszek Koltunski
30			///////////////////////////////////////////////////////////////////////////////////////////////////
31			/**
32			* Implements OpenGL buffer object such as GL_ARRAY_BUFFER or GL_TRANSFORM_FEEDBACK_BUFFER.
33			* Main point: deal with Android lifecycle and recreate the buffer on loss of OpenGL context.
34			* <p>
35			* Not part of public API, do not document (public only because has to be used in Meshes)
36			*
37			* @y.exclude
38			*/
39	7602a827	Leszek Koltunski	public class InternalBuffer extends InternalObject
40	466450b5	Leszek Koltunski	{
41	43814a57	Leszek Koltunski	private static final int DONE = 0;
42	728a7820	Leszek Koltunski	private static final int RECREATE = 1;
43			private static final int UPDATE = 2;
44
45	de77a6c5	Leszek Koltunski	private int mStatus, mSize;
46	7e53a35f	Leszek Koltunski	private final int[] mIndex;
47	de77a6c5	Leszek Koltunski	private final int mTarget, mUsage;
48	0bd9f644	Leszek Koltunski	private Buffer mBuffer;
49	466450b5	Leszek Koltunski
50			///////////////////////////////////////////////////////////////////////////////////////////////////
51
52	7602a827	Leszek Koltunski	public InternalBuffer(int target, int usage)
53	466450b5	Leszek Koltunski	{
54	9ec374e8	Leszek Koltunski	super(InternalObject.TYPE_USER, InternalObject.STORAGE_PRIVATE );
55	466450b5	Leszek Koltunski
56			mIndex = new int[1];
57			mTarget = target;
58			mUsage = usage;
59	ccd98f1c	Leszek Koltunski	mBuffer = null;
60			mSize = 0;
61	43814a57	Leszek Koltunski	mStatus = RECREATE;
62	466450b5	Leszek Koltunski	}
63
64			///////////////////////////////////////////////////////////////////////////////////////////////////
65	22e60fba	Leszek Koltunski	// must be called from a thread holding OpenGL Context.
66	466450b5	Leszek Koltunski
67	0bd9f644	Leszek Koltunski	public int createImmediatelyFloat(int size, float[] buffer)
68	466450b5	Leszek Koltunski	{
69	728a7820	Leszek Koltunski	if( (mStatus & RECREATE) != 0 )
70	22e60fba	Leszek Koltunski	{
71			mSize= size;
72	ccd98f1c	Leszek Koltunski
73	22e60fba	Leszek Koltunski	if( buffer!=null )
74			{
75			FloatBuffer buf = ByteBuffer.allocateDirect(size).order(ByteOrder.nativeOrder()).asFloatBuffer();
76			buf.put(buffer).position(0);
77			mBuffer = buf;
78			}
79			else
80			{
81			mBuffer = null;
82			}
83
84	b7074bc6	Leszek Koltunski	GLES30.glGenBuffers( 1, mIndex, 0);
85			GLES30.glBindBuffer( mTarget, mIndex[0]);
86			GLES30.glBufferData( mTarget, mSize, mBuffer, mUsage);
87			GLES30.glBindBuffer( mTarget, 0);
88	22e60fba	Leszek Koltunski
89			markWasCreatedImmediately();
90			}
91	728a7820	Leszek Koltunski	else if( (mStatus & UPDATE) != 0 )
92			{
93			updateFloat(buffer);
94			}
95
96	43814a57	Leszek Koltunski	mStatus = DONE;
97	7e53a35f	Leszek Koltunski
98			return mIndex[0];
99	22e60fba	Leszek Koltunski	}
100
101	0bd9f644	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
102			// must be called from a thread holding OpenGL Context.
103
104			public int createImmediatelyInt(int size, int[] buffer)
105			{
106	728a7820	Leszek Koltunski	if( (mStatus & RECREATE) != 0 )
107	0bd9f644	Leszek Koltunski	{
108			mSize= size;
109
110			if( buffer!=null )
111			{
112			IntBuffer buf = ByteBuffer.allocateDirect(size).order(ByteOrder.nativeOrder()).asIntBuffer();
113			buf.put(buffer).position(0);
114			mBuffer = buf;
115			}
116			else
117			{
118			mBuffer = null;
119			}
120
121			GLES30.glGenBuffers( 1, mIndex, 0);
122			GLES30.glBindBuffer( mTarget, mIndex[0]);
123			GLES30.glBufferData( mTarget, mSize, mBuffer, mUsage);
124			GLES30.glBindBuffer( mTarget, 0);
125
126			markWasCreatedImmediately();
127			}
128	728a7820	Leszek Koltunski	else if( (mStatus & UPDATE) != 0 )
129			{
130			updateInt(buffer);
131			}
132
133	43814a57	Leszek Koltunski	mStatus = DONE;
134	0bd9f644	Leszek Koltunski
135			return mIndex[0];
136			}
137
138			///////////////////////////////////////////////////////////////////////////////////////////////////
139			// buffer non-null!!
140
141			public void updateFloat(float[] buffer)
142			{
143			((FloatBuffer)mBuffer).put(buffer).position(0);
144
145			GLES30.glBindBuffer( mTarget, mIndex[0]);
146			GLES30.glBufferData( mTarget, mSize, mBuffer, mUsage);
147			GLES30.glBindBuffer( mTarget, 0);
148	43814a57	Leszek Koltunski
149			mStatus &= (~UPDATE);
150	0bd9f644	Leszek Koltunski	}
151
152	342a6773	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
153			// buffer non-null!!
154
155	0bd9f644	Leszek Koltunski	public void updateInt(int[] buffer)
156	342a6773	Leszek Koltunski	{
157	0bd9f644	Leszek Koltunski	((IntBuffer)mBuffer).put(buffer).position(0);
158	342a6773	Leszek Koltunski
159			GLES30.glBindBuffer( mTarget, mIndex[0]);
160			GLES30.glBufferData( mTarget, mSize, mBuffer, mUsage);
161			GLES30.glBindBuffer( mTarget, 0);
162	43814a57	Leszek Koltunski
163			mStatus &= (~UPDATE);
164	342a6773	Leszek Koltunski	}
165
166	22e60fba	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
167
168			public void invalidate()
169			{
170	728a7820	Leszek Koltunski	mStatus \|= UPDATE;
171	466450b5	Leszek Koltunski	}
172
173			///////////////////////////////////////////////////////////////////////////////////////////////////
174			// must be called from a thread holding OpenGL Context
175
176			void create()
177			{
178	728a7820	Leszek Koltunski	GLES30.glGenBuffers( 1, mIndex, 0);
179			GLES30.glBindBuffer( mTarget, mIndex[0]);
180			GLES30.glBufferData( mTarget, mSize, mBuffer, mUsage);
181			GLES30.glBindBuffer( mTarget, 0);
182	43814a57	Leszek Koltunski
183			mStatus = DONE;
184	466450b5	Leszek Koltunski	}
185
186			///////////////////////////////////////////////////////////////////////////////////////////////////
187			// must be called from a thread holding OpenGL Context
188
189			void delete()
190			{
191	728a7820	Leszek Koltunski	GLES30.glDeleteBuffers(1, mIndex, 0);
192			mStatus \|= RECREATE;
193			removeFromDone();
194	466450b5	Leszek Koltunski	}
195
196			///////////////////////////////////////////////////////////////////////////////////////////////////
197
198	728a7820	Leszek Koltunski	public void recreate()
199	466450b5	Leszek Koltunski	{
200	728a7820	Leszek Koltunski	mStatus \|= RECREATE;
201	466450b5	Leszek Koltunski	}
202
203			///////////////////////////////////////////////////////////////////////////////////////////////////
204			// debugging only
205
206			String printDetails()
207			{
208			return getClass().getSimpleName();
209			}
210			}

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library / src / main / java / org / distorted / library / main / InternalBuffer.java @ de77a6c5