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

library / src / main / java / org / distorted / library / main / DistortedLibrary.java @ a2878a67

1	d333eb6b	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
2			// Copyright 2016 Leszek Koltunski //
3			// //
4	46b572b5	Leszek Koltunski	// This file is part of Distorted. //
5	d333eb6b	Leszek Koltunski	// //
6	46b572b5	Leszek Koltunski	// Distorted is free software: you can redistribute it and/or modify //
7	d333eb6b	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	d333eb6b	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	d333eb6b	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
19
20	fe82a979	Leszek Koltunski	package org.distorted.library.main;
21	6a06a912	Leszek Koltunski
22	30beb34f	Leszek Koltunski	import android.app.ActivityManager;
23	7845dc66	Leszek Koltunski	import android.content.Context;
24	30beb34f	Leszek Koltunski	import android.content.pm.ConfigurationInfo;
25	d6e94c84	Leszek Koltunski	import android.content.res.Resources;
26	b7074bc6	Leszek Koltunski	import android.opengl.GLES30;
27	edea9cf3	Leszek Koltunski	import android.opengl.GLES31;
28	bfe45b4a	Leszek Koltunski	import android.util.Log;
29	310e14fb	leszek
30	bfe45b4a	Leszek Koltunski	import org.distorted.library.R;
31	26a4e5f6	leszek	import org.distorted.library.effect.Effect;
32	809dcae3	Leszek Koltunski	import org.distorted.library.effectqueue.EffectQueue;
33			import org.distorted.library.effectqueue.EffectQueuePostprocess;
34	bfe45b4a	Leszek Koltunski	import org.distorted.library.effect.EffectType;
35			import org.distorted.library.effect.FragmentEffect;
36	aa2f0486	Leszek Koltunski	import org.distorted.library.effect.PostprocessEffect;
37	bfe45b4a	Leszek Koltunski	import org.distorted.library.effect.VertexEffect;
38	07206c71	Leszek Koltunski	import org.distorted.library.effectqueue.EffectQueueVertex;
39			import org.distorted.library.mesh.DeferredJobs;
40	bfe45b4a	Leszek Koltunski	import org.distorted.library.mesh.MeshBase;
41	ed06301f	Leszek Koltunski	import org.distorted.library.message.EffectMessageSender;
42	bfe45b4a	Leszek Koltunski	import org.distorted.library.program.DistortedProgram;
43	b7074bc6	Leszek Koltunski	import org.distorted.library.program.VertexCompilationException;
44	0273ef2a	Leszek Koltunski	import org.distorted.library.type.Dynamic;
45	bfe45b4a	Leszek Koltunski
46			import java.io.InputStream;
47			import java.nio.ByteBuffer;
48			import java.nio.ByteOrder;
49			import java.nio.FloatBuffer;
50			import java.nio.IntBuffer;
51	5f35f1cb	Leszek Koltunski	import java.util.regex.Matcher;
52			import java.util.regex.Pattern;
53	6a06a912	Leszek Koltunski
54			///////////////////////////////////////////////////////////////////////////////////////////////////
55			/**
56	f953bee0	Leszek Koltunski	* A singleton class used to control various global dialog_settings.
57	6a06a912	Leszek Koltunski	*/
58	7602a827	Leszek Koltunski	public class DistortedLibrary
59	39cbf9dc	Leszek Koltunski	{
60	b7074bc6	Leszek Koltunski	private static int mGLSL;
61			private static String mGLSL_VERSION;
62	d99fcc9c	Leszek Koltunski	private static boolean mOITCompilationAttempted;
63	6a06a912	Leszek Koltunski	/**
64	cacc63de	Leszek Koltunski	* When creating an instance of a DistortedTexture from another instance, clone the Bitmap that's
65			* backing up our DistortedTexture.
66	6a06a912	Leszek Koltunski	* <p>
67	cacc63de	Leszek Koltunski	* This way we can have two DistortedTextures, both backed up by the same Bitmap, to which we can
68	6a06a912	Leszek Koltunski	* apply different effects. Used in the copy constructor.
69			*/
70	29a06526	Leszek Koltunski	public static final int CLONE_SURFACE = 0x1;
71	6a06a912	Leszek Koltunski	/**
72	cacc63de	Leszek Koltunski	* When creating an instance of a DistortedEffects from another instance, clone the Matrix Effects.
73	6a06a912	Leszek Koltunski	* <p>
74	cacc63de	Leszek Koltunski	* This way we can have two different DistortedEffects sharing the MATRIX queue.
75	6a06a912	Leszek Koltunski	*/
76	015642fb	Leszek Koltunski	public static final int CLONE_MATRIX = 0x2;
77	6a06a912	Leszek Koltunski	/**
78	cacc63de	Leszek Koltunski	* When creating an instance of a DistortedEffects from another instance, clone the Vertex Effects.
79	6a06a912	Leszek Koltunski	* <p>
80	cacc63de	Leszek Koltunski	* This way we can have two different DistortedEffects sharing the VERTEX queue.
81	6a06a912	Leszek Koltunski	*/
82			public static final int CLONE_VERTEX = 0x4;
83			/**
84	cacc63de	Leszek Koltunski	* When creating an instance of a DistortedEffects from another instance, clone the Fragment Effects.
85	6a06a912	Leszek Koltunski	* <p>
86	cacc63de	Leszek Koltunski	* This way we can have two different DistortedEffects sharing the FRAGMENT queue.
87	6a06a912	Leszek Koltunski	*/
88			public static final int CLONE_FRAGMENT= 0x8;
89	d6e94c84	Leszek Koltunski	/**
90			* When creating an instance of a DistortedEffects from another instance, clone the PostProcess Effects.
91			* <p>
92			* This way we can have two different DistortedEffects sharing the POSTPROCESS queue.
93			*/
94			public static final int CLONE_POSTPROCESS= 0x10;
95	6a06a912	Leszek Koltunski	/**
96	a09ada4c	Leszek Koltunski	* When creating an instance of a DistortedNode from another instance, clone the children Nodes.
97	6a06a912	Leszek Koltunski	* <p>
98	cacc63de	Leszek Koltunski	* This is mainly useful for creating many similar sub-trees and rendering then at different places
99			* on the screen with (optionally) different Effects.
100	6a06a912	Leszek Koltunski	*/
101	d6e94c84	Leszek Koltunski	public static final int CLONE_CHILDREN= 0x20;
102	b3618cb5	Leszek Koltunski
103	5f35f1cb	Leszek Koltunski	/**
104			* When creating a DistortedScreen (which needs to have mFBOQueueSize FBOs attached), pass this
105			* constant for 'numOfFBOs' and the number of backing FBOs will be taken from 'mFBOQueueSize'
106			* (the value of which is most likely unknown at the time of creation of the Screen)
107			*/
108			public static final int WAIT_FOR_FBO_QUEUE_SIZE = -1;
109	586b5fa1	Leszek Koltunski	/**
110			* Work around bugs in ARM Mali driver by, instead to a single FBO, rendering to a circular queue
111	5f35f1cb	Leszek Koltunski	* of mFBOQueueSize FBOs. (otherwise we sometimes get a 'full pipeline flush' and the end result
112	586b5fa1	Leszek Koltunski	* might be missing part of the Objects)
113	6672d895	Leszek Koltunski	*
114	5f35f1cb	Leszek Koltunski	* This bug only exists on Mali driver r12. (or more precisely it's there in r12 but fixed in r22)
115	6672d895	Leszek Koltunski	*
116			* https://community.arm.com/graphics/f/discussions/10285/opengl-es-3-1-on-mali-t880-flashes
117	586b5fa1	Leszek Koltunski	*/
118	5f35f1cb	Leszek Koltunski	private static int mFBOQueueSize;
119	586b5fa1	Leszek Koltunski
120	55c14a19	Leszek Koltunski	private static boolean mInitialized=false;
121	6a06a912	Leszek Koltunski
122	bfe45b4a	Leszek Koltunski	//////////////////////////////////////////////////////////////////////////////////////////////
123			/// MAIN PROGRAM ///
124			private static DistortedProgram mMainProgram;
125			private static int mMainTextureH;
126	62c869ad	Leszek Koltunski	private static int mTransformFeedbackH;
127	bfe45b4a	Leszek Koltunski
128			/// NORMAL PROGRAM /////
129			private static DistortedProgram mNormalProgram;
130	62c869ad	Leszek Koltunski	private static int mNormalProjectionH;
131	bfe45b4a	Leszek Koltunski
132			/// MAIN OIT PROGRAM ///
133			private static DistortedProgram mMainOITProgram;
134			private static int mMainOITTextureH;
135			private static int mMainOITSizeH;
136			private static int mMainOITNumRecordsH;
137
138			/// BLIT PROGRAM ///
139			private static DistortedProgram mBlitProgram;
140			private static int mBlitTextureH;
141			private static int mBlitDepthH;
142			private static final FloatBuffer mQuadPositions;
143
144	f046b159	Leszek Koltunski	/// FULL PROGRAM ///
145			private static DistortedProgram mFullProgram;
146
147	bfe45b4a	Leszek Koltunski	static
148			{
149			float[] positionData= { -0.5f, -0.5f, -0.5f, 0.5f, 0.5f,-0.5f, 0.5f, 0.5f };
150			mQuadPositions = ByteBuffer.allocateDirect(32).order(ByteOrder.nativeOrder()).asFloatBuffer();
151			mQuadPositions.put(positionData).position(0);
152			}
153
154			/// BLIT DEPTH PROGRAM ///
155			private static DistortedProgram mBlitDepthProgram;
156			private static int mBlitDepthTextureH;
157			private static int mBlitDepthDepthTextureH;
158			private static int mBlitDepthDepthH;
159			private static int mBlitDepthTexCorrH;
160
161	0bd9f644	Leszek Koltunski	/// Program Handles ///
162			private static int mMainProgramH, mFullProgramH, mMainOITProgramH;
163
164	bfe45b4a	Leszek Koltunski	/// OIT SSBO BUFFER ///
165			private static int[] mLinkedListSSBO = new int[1];
166	5f35f1cb	Leszek Koltunski	private static int[] mAtomicCounter;
167	bfe45b4a	Leszek Koltunski	private static int mCurrBuffer;
168
169			static
170			{
171			mLinkedListSSBO[0]= -1;
172			mCurrBuffer = 0;
173			}
174
175			///////////////////////////////////////////////////////////////
176			// meaning: allocate 1.0 screenful of places for transparent
177			// fragments in the SSBO backing up the OIT render method.
178			private static float mBufferSize=1.0f;
179
180			/// OIT CLEAR PROGRAM ///
181			private static DistortedProgram mOITClearProgram;
182			private static int mOITClearDepthH;
183			private static int mOITClearTexCorrH;
184			private static int mOITClearSizeH;
185
186			/// OIT BUILD PROGRAM ///
187			private static DistortedProgram mOITBuildProgram;
188			private static int mOITBuildTextureH;
189			private static int mOITBuildDepthTextureH;
190			private static int mOITBuildDepthH;
191			private static int mOITBuildTexCorrH;
192			private static int mOITBuildSizeH;
193			private static int mOITBuildNumRecordsH;
194
195			/// OIT COLLAPSE PROGRAM ///
196			private static DistortedProgram mOITCollapseProgram;
197			private static int mOITCollapseDepthTextureH;
198			private static int mOITCollapseDepthH;
199			private static int mOITCollapseTexCorrH;
200			private static int mOITCollapseSizeH;
201
202			/// OIT RENDER PROGRAM ///
203			private static DistortedProgram mOITRenderProgram;
204			private static int mOITRenderDepthH;
205			private static int mOITRenderTexCorrH;
206			private static int mOITRenderSizeH;
207
208			/// END PROGRAMS //////
209
210	d99fcc9c	Leszek Koltunski	/**
211			* Every application using the library must implement this interface so that the library can send
212			* it exceptions that arise. The exceptions may come at any time, for example the library will
213			* compile its OIT problem only on the first attempt to use the OIT
214			* Those will mainly be hardware-related: shaders do not compile on particular hardware, the required
215			* OpenGL ES 3.0 is not supported, etc.
216			*/
217			public interface ExceptionListener
218			{
219			void distortedException(Exception ex);
220			}
221
222			private static ExceptionListener mListener;
223			private static Resources mResources;
224
225	6a06a912	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
226	c638c1b0	Leszek Koltunski	// private: hide this from Javadoc
227	6a06a912	Leszek Koltunski
228	7602a827	Leszek Koltunski	private DistortedLibrary()
229	6a06a912	Leszek Koltunski	{
230	8eccf334	Leszek Koltunski
231	6a06a912	Leszek Koltunski	}
232
233	bfe45b4a	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
234
235	d99fcc9c	Leszek Koltunski	private static void createMainProgram()
236	bfe45b4a	Leszek Koltunski	{
237			// MAIN PROGRAM ////////////////////////////////////
238	d99fcc9c	Leszek Koltunski	final InputStream mainVertStream = mResources.openRawResource(R.raw.main_vertex_shader);
239			final InputStream mainFragStream = mResources.openRawResource(R.raw.main_fragment_shader);
240	bfe45b4a	Leszek Koltunski
241			int numF = FragmentEffect.getNumEnabled();
242			int numV = VertexEffect.getNumEnabled();
243
244	b7074bc6	Leszek Koltunski	String mainVertHeader= mGLSL_VERSION + ("#define NUM_VERTEX " + ( numV>0 ? getMax(EffectType.VERTEX ) : 0 ) + "\n");
245			String mainFragHeader= mGLSL_VERSION + ("#define NUM_FRAGMENT " + ( numF>0 ? getMax(EffectType.FRAGMENT) : 0 ) + "\n");
246	36d65d88	Leszek Koltunski
247	e8925fcd	Leszek Koltunski	mainVertHeader += "#define MAX_COMPON " + MeshBase.getMaxEffComponents() + "\n";
248	36d65d88	Leszek Koltunski
249	bfe45b4a	Leszek Koltunski	String enabledEffectV= VertexEffect.getGLSL();
250			String enabledEffectF= FragmentEffect.getGLSL();
251
252			String[] feedback = { "v_Position", "v_endPosition" };
253
254			try
255			{
256			mMainProgram = new DistortedProgram(mainVertStream, mainFragStream, mainVertHeader, mainFragHeader,
257	b7074bc6	Leszek Koltunski	enabledEffectV, enabledEffectF, mGLSL, feedback);
258	bfe45b4a	Leszek Koltunski	}
259			catch(Exception e)
260			{
261			Log.e("EFFECTS", e.getClass().getSimpleName()+" trying to compile MAIN program: "+e.getMessage());
262			throw new RuntimeException(e.getMessage());
263			}
264
265	0bd9f644	Leszek Koltunski	mMainProgramH = mMainProgram.getProgramHandle();
266			EffectQueue.getUniforms(mMainProgramH,0);
267			mMainTextureH= GLES30.glGetUniformLocation( mMainProgramH, "u_Texture");
268			mTransformFeedbackH= GLES30.glGetUniformLocation( mMainProgramH, "u_TransformFeedback");
269	bfe45b4a	Leszek Koltunski
270			// BLIT PROGRAM ////////////////////////////////////
271	d99fcc9c	Leszek Koltunski	final InputStream blitVertStream = mResources.openRawResource(R.raw.blit_vertex_shader);
272			final InputStream blitFragStream = mResources.openRawResource(R.raw.blit_fragment_shader);
273	bfe45b4a	Leszek Koltunski
274			try
275			{
276	b7074bc6	Leszek Koltunski	mBlitProgram = new DistortedProgram(blitVertStream,blitFragStream, mGLSL_VERSION, mGLSL_VERSION, mGLSL);
277	bfe45b4a	Leszek Koltunski	}
278			catch(Exception e)
279			{
280			Log.e("EFFECTS", e.getClass().getSimpleName()+" trying to compile BLIT program: "+e.getMessage());
281			throw new RuntimeException(e.getMessage());
282			}
283
284			int blitProgramH = mBlitProgram.getProgramHandle();
285	b7074bc6	Leszek Koltunski	mBlitTextureH = GLES30.glGetUniformLocation( blitProgramH, "u_Texture");
286			mBlitDepthH = GLES30.glGetUniformLocation( blitProgramH, "u_Depth");
287	bfe45b4a	Leszek Koltunski
288			// BLIT DEPTH PROGRAM ////////////////////////////////////
289	d99fcc9c	Leszek Koltunski	final InputStream blitDepthVertStream = mResources.openRawResource(R.raw.blit_depth_vertex_shader);
290			final InputStream blitDepthFragStream = mResources.openRawResource(R.raw.blit_depth_fragment_shader);
291	bfe45b4a	Leszek Koltunski
292			try
293			{
294	b7074bc6	Leszek Koltunski	mBlitDepthProgram = new DistortedProgram(blitDepthVertStream,blitDepthFragStream, mGLSL_VERSION, mGLSL_VERSION, mGLSL);
295	bfe45b4a	Leszek Koltunski	}
296			catch(Exception e)
297			{
298			Log.e("EFFECTS", e.getClass().getSimpleName()+" trying to compile BLIT DEPTH program: "+e.getMessage());
299			throw new RuntimeException(e.getMessage());
300			}
301
302			int blitDepthProgramH = mBlitDepthProgram.getProgramHandle();
303	b7074bc6	Leszek Koltunski	mBlitDepthTextureH = GLES30.glGetUniformLocation( blitDepthProgramH, "u_Texture");
304			mBlitDepthDepthTextureH = GLES30.glGetUniformLocation( blitDepthProgramH, "u_DepthTexture");
305			mBlitDepthDepthH = GLES30.glGetUniformLocation( blitDepthProgramH, "u_Depth");
306			mBlitDepthTexCorrH = GLES30.glGetUniformLocation( blitDepthProgramH, "u_TexCorr");
307	d99fcc9c	Leszek Koltunski	}
308
309			///////////////////////////////////////////////////////////////////////////////////////////////////
310	bfe45b4a	Leszek Koltunski
311	d99fcc9c	Leszek Koltunski	private static void createNormalProgram(Resources resources)
312			{
313	bfe45b4a	Leszek Koltunski	// NORMAL PROGRAM //////////////////////////////////////
314			final InputStream normalVertexStream = resources.openRawResource(R.raw.normal_vertex_shader);
315			final InputStream normalFragmentStream = resources.openRawResource(R.raw.normal_fragment_shader);
316
317			try
318			{
319	b7074bc6	Leszek Koltunski	mNormalProgram = new DistortedProgram(normalVertexStream,normalFragmentStream, mGLSL_VERSION, mGLSL_VERSION, mGLSL);
320	bfe45b4a	Leszek Koltunski	}
321			catch(Exception e)
322			{
323			Log.e("EFFECTS", e.getClass().getSimpleName()+" trying to compile NORMAL program: "+e.getMessage());
324			throw new RuntimeException(e.getMessage());
325			}
326
327			int normalProgramH = mNormalProgram.getProgramHandle();
328	62c869ad	Leszek Koltunski	mNormalProjectionH = GLES30.glGetUniformLocation( normalProgramH, "u_Projection");
329	bfe45b4a	Leszek Koltunski	}
330
331	f046b159	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
332
333			private static void createFullProgram(Resources resources)
334			{
335			final InputStream fullVertStream = resources.openRawResource(R.raw.main_vertex_shader);
336			final InputStream fullFragStream = resources.openRawResource(R.raw.main_fragment_shader);
337
338			int numV = VertexEffect.getAllEnabled();
339
340			String fullVertHeader= mGLSL_VERSION + ("#define NUM_VERTEX " + ( numV>0 ? getMax(EffectType.VERTEX ) : 0 ) + "\n");
341			String fullFragHeader= mGLSL_VERSION + ("#define NUM_FRAGMENT " + 0 + "\n");
342	36d65d88	Leszek Koltunski
343	e8925fcd	Leszek Koltunski	fullVertHeader += "#define MAX_COMPON " + MeshBase.getMaxEffComponents() + "\n";
344	36d65d88	Leszek Koltunski
345	f046b159	Leszek Koltunski	String enabledEffectV= VertexEffect.getAllGLSL();
346			String enabledEffectF= "{}";
347
348	667884b0	Leszek Koltunski	fullVertHeader += "#define PREAPPLY\n";
349
350	a2878a67	Leszek Koltunski	String[] feedback = { "v_Position", "v_endPosition" };
351	f046b159	Leszek Koltunski
352			try
353			{
354			mFullProgram = new DistortedProgram(fullVertStream, fullFragStream, fullVertHeader, fullFragHeader,
355			enabledEffectV, enabledEffectF, mGLSL, feedback);
356			}
357			catch(Exception e)
358			{
359			Log.e("EFFECTS", e.getClass().getSimpleName()+" trying to compile FULL program: "+e.getMessage());
360			throw new RuntimeException(e.getMessage());
361			}
362
363	0bd9f644	Leszek Koltunski	mFullProgramH = mFullProgram.getProgramHandle();
364			EffectQueue.getUniforms(mFullProgramH,3);
365	f046b159	Leszek Koltunski	}
366
367	bfe45b4a	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
368
369	d99fcc9c	Leszek Koltunski	private static void createOITProgram(Resources resources)
370	bfe45b4a	Leszek Koltunski	{
371			// MAIN OIT PROGRAM ////////////////////////////////
372			final InputStream mainVertStream = resources.openRawResource(R.raw.main_vertex_shader);
373			final InputStream mainFragStream = resources.openRawResource(R.raw.main_fragment_shader);
374
375			int numF = FragmentEffect.getNumEnabled();
376			int numV = VertexEffect.getNumEnabled();
377
378	b7074bc6	Leszek Koltunski	String mainVertHeader= mGLSL_VERSION + ("#define NUM_VERTEX " + ( numV>0 ? getMax(EffectType.VERTEX ) : 0 ) + "\n") + ("#define OIT\n");
379			String mainFragHeader= mGLSL_VERSION + ("#define NUM_FRAGMENT " + ( numF>0 ? getMax(EffectType.FRAGMENT) : 0 ) + "\n") + ("#define OIT\n");
380	bfe45b4a	Leszek Koltunski
381	e8925fcd	Leszek Koltunski	mainVertHeader += "#define MAX_COMPON " + MeshBase.getMaxEffComponents() + "\n";
382	36d65d88	Leszek Koltunski
383	bfe45b4a	Leszek Koltunski	String enabledEffectV= VertexEffect.getGLSL();
384			String enabledEffectF= FragmentEffect.getGLSL();
385
386			try
387			{
388			mMainOITProgram = new DistortedProgram(mainVertStream, mainFragStream, mainVertHeader, mainFragHeader,
389	b7074bc6	Leszek Koltunski	enabledEffectV, enabledEffectF, mGLSL, null);
390	bfe45b4a	Leszek Koltunski	}
391			catch(Exception e)
392			{
393			Log.e("EFFECTS", e.getClass().getSimpleName()+" trying to compile MAIN OIT program: "+e.getMessage());
394			throw new RuntimeException(e.getMessage());
395			}
396
397	0bd9f644	Leszek Koltunski	mMainOITProgramH = mMainOITProgram.getProgramHandle();
398			EffectQueue.getUniforms(mMainOITProgramH,1);
399			mMainOITTextureH = GLES30.glGetUniformLocation( mMainOITProgramH, "u_Texture");
400			mMainOITSizeH = GLES30.glGetUniformLocation( mMainOITProgramH, "u_Size");
401			mMainOITNumRecordsH = GLES30.glGetUniformLocation( mMainOITProgramH, "u_numRecords");
402	bfe45b4a	Leszek Koltunski
403			// OIT CLEAR PROGRAM ////////////////////////////////////
404			final InputStream oitClearVertStream = resources.openRawResource(R.raw.oit_vertex_shader);
405			final InputStream oitClearFragStream = resources.openRawResource(R.raw.oit_clear_fragment_shader);
406
407			try
408			{
409	b7074bc6	Leszek Koltunski	mOITClearProgram = new DistortedProgram(oitClearVertStream,oitClearFragStream, mGLSL_VERSION, mGLSL_VERSION, mGLSL);
410	bfe45b4a	Leszek Koltunski	}
411			catch(Exception e)
412			{
413			Log.e("EFFECTS", e.getClass().getSimpleName()+" trying to compile OIT CLEAR program: "+e.getMessage());
414			throw new RuntimeException(e.getMessage());
415			}
416
417			int oitClearProgramH = mOITClearProgram.getProgramHandle();
418	b7074bc6	Leszek Koltunski	mOITClearDepthH = GLES30.glGetUniformLocation( oitClearProgramH, "u_Depth");
419			mOITClearTexCorrH = GLES30.glGetUniformLocation( oitClearProgramH, "u_TexCorr");
420			mOITClearSizeH = GLES30.glGetUniformLocation( oitClearProgramH, "u_Size");
421	bfe45b4a	Leszek Koltunski
422			// OIT BUILD PROGRAM ////////////////////////////////////
423			final InputStream oitBuildVertStream = resources.openRawResource(R.raw.oit_vertex_shader);
424			final InputStream oitBuildFragStream = resources.openRawResource(R.raw.oit_build_fragment_shader);
425
426			try
427			{
428	b7074bc6	Leszek Koltunski	mOITBuildProgram = new DistortedProgram(oitBuildVertStream,oitBuildFragStream, mGLSL_VERSION, mGLSL_VERSION, mGLSL);
429	bfe45b4a	Leszek Koltunski	}
430			catch(Exception e)
431			{
432			Log.e("EFFECTS", e.getClass().getSimpleName()+" trying to compile OIT BUILD program: "+e.getMessage());
433			throw new RuntimeException(e.getMessage());
434			}
435
436			int oitBuildProgramH = mOITBuildProgram.getProgramHandle();
437	b7074bc6	Leszek Koltunski	mOITBuildTextureH = GLES30.glGetUniformLocation( oitBuildProgramH, "u_Texture");
438			mOITBuildDepthTextureH = GLES30.glGetUniformLocation( oitBuildProgramH, "u_DepthTexture");
439			mOITBuildDepthH = GLES30.glGetUniformLocation( oitBuildProgramH, "u_Depth");
440			mOITBuildTexCorrH = GLES30.glGetUniformLocation( oitBuildProgramH, "u_TexCorr");
441			mOITBuildSizeH = GLES30.glGetUniformLocation( oitBuildProgramH, "u_Size");
442			mOITBuildNumRecordsH = GLES30.glGetUniformLocation( oitBuildProgramH, "u_numRecords");
443	bfe45b4a	Leszek Koltunski
444			// OIT COLLAPSE PROGRAM ///////////////////////////
445			final InputStream oitCollapseVertStream = resources.openRawResource(R.raw.oit_vertex_shader);
446			final InputStream oitCollapseFragStream = resources.openRawResource(R.raw.oit_collapse_fragment_shader);
447
448			try
449			{
450	b7074bc6	Leszek Koltunski	mOITCollapseProgram = new DistortedProgram(oitCollapseVertStream,oitCollapseFragStream, mGLSL_VERSION, mGLSL_VERSION, mGLSL);
451	bfe45b4a	Leszek Koltunski	}
452			catch(Exception e)
453			{
454			Log.e("EFFECTS", e.getClass().getSimpleName()+" trying to compile OIT COLLAPSE program: "+e.getMessage());
455			throw new RuntimeException(e.getMessage());
456			}
457
458			int oitCollapseProgramH = mOITCollapseProgram.getProgramHandle();
459	b7074bc6	Leszek Koltunski	mOITCollapseDepthTextureH = GLES30.glGetUniformLocation( oitCollapseProgramH, "u_DepthTexture");
460			mOITCollapseDepthH = GLES30.glGetUniformLocation( oitCollapseProgramH, "u_Depth");
461			mOITCollapseTexCorrH = GLES30.glGetUniformLocation( oitCollapseProgramH, "u_TexCorr");
462			mOITCollapseSizeH = GLES30.glGetUniformLocation( oitCollapseProgramH, "u_Size");
463	bfe45b4a	Leszek Koltunski
464			// OIT RENDER PROGRAM ///////////////////////////
465			final InputStream oitRenderVertStream = resources.openRawResource(R.raw.oit_vertex_shader);
466			final InputStream oitRenderFragStream = resources.openRawResource(R.raw.oit_render_fragment_shader);
467
468			try
469			{
470	b7074bc6	Leszek Koltunski	mOITRenderProgram = new DistortedProgram(oitRenderVertStream,oitRenderFragStream, mGLSL_VERSION, mGLSL_VERSION, mGLSL);
471	bfe45b4a	Leszek Koltunski	}
472			catch(Exception e)
473			{
474			Log.e("EFFECTS", e.getClass().getSimpleName()+" trying to compile OIT RENDER program: "+e.getMessage());
475			throw new RuntimeException(e.getMessage());
476			}
477
478			int oitRenderProgramH = mOITRenderProgram.getProgramHandle();
479	b7074bc6	Leszek Koltunski	mOITRenderDepthH = GLES30.glGetUniformLocation( oitRenderProgramH, "u_Depth");
480			mOITRenderTexCorrH = GLES30.glGetUniformLocation( oitRenderProgramH, "u_TexCorr");
481			mOITRenderSizeH = GLES30.glGetUniformLocation( oitRenderProgramH, "u_Size");
482	bfe45b4a	Leszek Koltunski	}
483
484			///////////////////////////////////////////////////////////////////////////////////////////////////
485
486	62c869ad	Leszek Koltunski	private static void displayNormals(float[] projection, MeshBase mesh)
487	bfe45b4a	Leszek Koltunski	{
488	d99fcc9c	Leszek Koltunski	if( mNormalProgram==null )
489			{
490			try
491			{
492			createNormalProgram(mResources);
493			}
494			catch(Exception ex)
495			{
496			mListener.distortedException(ex);
497			return;
498			}
499			}
500
501	bfe45b4a	Leszek Koltunski	int num = mesh.getNumVertices();
502			int tfo = mesh.getTFO();
503
504	62c869ad	Leszek Koltunski	GLES30.glUniform1i(DistortedLibrary.mTransformFeedbackH, 1);
505	b7074bc6	Leszek Koltunski	GLES30.glBindBufferBase(GLES30.GL_TRANSFORM_FEEDBACK_BUFFER, 0, tfo );
506			GLES30.glBeginTransformFeedback( GLES30.GL_POINTS);
507	7602a827	Leszek Koltunski	InternalRenderState.switchOffDrawing();
508	b7074bc6	Leszek Koltunski	GLES30.glDrawArrays( GLES30.GL_POINTS, 0, num );
509	7602a827	Leszek Koltunski	InternalRenderState.restoreDrawing();
510	b7074bc6	Leszek Koltunski	GLES30.glEndTransformFeedback();
511			GLES30.glBindBufferBase(GLES30.GL_TRANSFORM_FEEDBACK_BUFFER, 0, 0);
512	bfe45b4a	Leszek Koltunski
513	f046b159	Leszek Koltunski	mNormalProgram.useProgram();
514	62c869ad	Leszek Koltunski	GLES30.glUniformMatrix4fv(mNormalProjectionH, 1, false, projection, 0);
515	f046b159	Leszek Koltunski	mesh.bindTransformAttribs(mNormalProgram);
516	b7074bc6	Leszek Koltunski	GLES30.glLineWidth(8.0f);
517			GLES30.glDrawArrays(GLES30.GL_LINES, 0, 2*num);
518	bfe45b4a	Leszek Koltunski	}
519
520	f046b159	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
521	0bd9f644	Leszek Koltunski	/**
522			* Execute all VertexEffects and adjust all vertices
523			*
524			* @y.exclude
525			*/
526	07206c71	Leszek Koltunski	public static void adjustVertices(MeshBase mesh, EffectQueueVertex queue)
527	f046b159	Leszek Koltunski	{
528	d99fcc9c	Leszek Koltunski	if( mFullProgram==null )
529	f046b159	Leszek Koltunski	{
530	d99fcc9c	Leszek Koltunski	try
531			{
532			createFullProgram(mResources);
533			}
534			catch(Exception ex)
535			{
536			mListener.distortedException(ex);
537			return;
538			}
539	f046b159	Leszek Koltunski	}
540	d99fcc9c	Leszek Koltunski
541			int num = mesh.getNumVertices();
542			int tfo = mesh.getTFO();
543
544			mFullProgram.useProgram();
545			mesh.bindVertexAttribs(mFullProgram);
546			queue.compute(1);
547			queue.send(0.0f,3);
548	0bd9f644	Leszek Koltunski	mesh.send(mFullProgramH);
549	d99fcc9c	Leszek Koltunski
550			GLES30.glBindBufferBase(GLES30.GL_TRANSFORM_FEEDBACK_BUFFER, 0, tfo );
551			GLES30.glBeginTransformFeedback( GLES30.GL_POINTS);
552			InternalRenderState.switchOffDrawing();
553			GLES30.glDrawArrays( GLES30.GL_POINTS, 0, num );
554			InternalRenderState.restoreDrawing();
555			GLES30.glEndTransformFeedback();
556			mesh.copyTransformToVertex();
557			GLES30.glBindBufferBase(GLES30.GL_TRANSFORM_FEEDBACK_BUFFER, 0, 0);
558	f046b159	Leszek Koltunski	}
559
560	bfe45b4a	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
561
562	c90aca24	Leszek Koltunski	static void drawPrivOIT(DistortedEffects effects, MeshBase mesh, InternalOutputSurface surface, long currTime)
563	bfe45b4a	Leszek Koltunski	{
564	06ddd60d	Leszek Koltunski	if( mMainOITProgram!=null )
565			{
566			EffectQueue[] queues = effects.getQueues();
567	c90aca24	Leszek Koltunski
568	06ddd60d	Leszek Koltunski	EffectQueue.compute(queues, currTime);
569			GLES30.glViewport(0, 0, surface.mWidth, surface.mHeight );
570	bfe45b4a	Leszek Koltunski
571	06ddd60d	Leszek Koltunski	mMainOITProgram.useProgram();
572			GLES30.glUniform1i(mMainOITTextureH, 0);
573			GLES30.glUniform2ui(mMainOITSizeH, surface.mWidth, surface.mHeight);
574			GLES30.glUniform1ui(mMainOITNumRecordsH, (int)(mBufferSizesurface.mWidthsurface.mHeight) );
575			mesh.bindVertexAttribs(mMainOITProgram);
576	0bd9f644	Leszek Koltunski	mesh.send(mMainOITProgramH);
577	bfe45b4a	Leszek Koltunski
578	06ddd60d	Leszek Koltunski	float inflate = mesh.getInflate();
579			float distance = surface.mDistance;
580			float mipmap = surface.mMipmap;
581			float[] projection= surface.mProjectionMatrix;
582	bfe45b4a	Leszek Koltunski
583	62c869ad	Leszek Koltunski	EffectQueue.send(queues, distance, mipmap, projection, inflate, 1 );
584	06ddd60d	Leszek Koltunski	GLES30.glDrawArrays(GLES30.GL_TRIANGLE_STRIP, 0, mesh.getNumVertices() );
585	bfe45b4a	Leszek Koltunski
586	06ddd60d	Leszek Koltunski	if( mesh.getShowNormals() )
587			{
588			mMainProgram.useProgram();
589	0bd9f644	Leszek Koltunski	mesh.send(mMainProgramH);
590	62c869ad	Leszek Koltunski	EffectQueue.send(queues, distance, mipmap, projection, inflate, 0 );
591			displayNormals(projection,mesh);
592	06ddd60d	Leszek Koltunski	}
593	bfe45b4a	Leszek Koltunski	}
594			}
595
596			///////////////////////////////////////////////////////////////////////////////////////////////////
597
598	c90aca24	Leszek Koltunski	static void drawPriv(DistortedEffects effects, MeshBase mesh, InternalOutputSurface surface, long currTime)
599	bfe45b4a	Leszek Koltunski	{
600	f046b159	Leszek Koltunski	if( mMainProgram!=null )
601	f482efa3	Leszek Koltunski	{
602			EffectQueue[] queues = effects.getQueues();
603	bfe45b4a	Leszek Koltunski
604	f482efa3	Leszek Koltunski	EffectQueue.compute(queues, currTime);
605			GLES30.glViewport(0, 0, surface.mWidth, surface.mHeight );
606	46b572b5	Leszek Koltunski
607	f482efa3	Leszek Koltunski	mMainProgram.useProgram();
608			GLES30.glUniform1i(DistortedLibrary.mMainTextureH, 0);
609			mesh.bindVertexAttribs(DistortedLibrary.mMainProgram);
610	0bd9f644	Leszek Koltunski	mesh.send(mMainProgramH);
611	809dcae3	Leszek Koltunski
612	f482efa3	Leszek Koltunski	float inflate = mesh.getInflate();
613			float distance = surface.mDistance;
614			float mipmap = surface.mMipmap;
615			float[] projection= surface.mProjectionMatrix;
616	809dcae3	Leszek Koltunski
617	62c869ad	Leszek Koltunski	EffectQueue.send(queues, distance, mipmap, projection, inflate, 0 );
618	f482efa3	Leszek Koltunski	GLES30.glDrawArrays(GLES30.GL_TRIANGLE_STRIP, 0, mesh.getNumVertices() );
619	bfe45b4a	Leszek Koltunski
620	62c869ad	Leszek Koltunski	if( mesh.getShowNormals() ) displayNormals(projection,mesh);
621	f482efa3	Leszek Koltunski	}
622	bfe45b4a	Leszek Koltunski	}
623
624			///////////////////////////////////////////////////////////////////////////////////////////////////
625
626	7602a827	Leszek Koltunski	static void blitPriv(InternalOutputSurface surface)
627	bfe45b4a	Leszek Koltunski	{
628	f482efa3	Leszek Koltunski	if( mBlitProgram!=null )
629			{
630			mBlitProgram.useProgram();
631	bfe45b4a	Leszek Koltunski
632	f482efa3	Leszek Koltunski	GLES30.glViewport(0, 0, surface.mWidth, surface.mHeight );
633			GLES30.glUniform1i(mBlitTextureH, 0);
634			GLES30.glUniform1f( mBlitDepthH , 1.0f-surface.mNear);
635			GLES30.glVertexAttribPointer(mBlitProgram.mAttribute[0], 2, GLES30.GL_FLOAT, false, 0, mQuadPositions);
636			GLES30.glDrawArrays(GLES30.GL_TRIANGLE_STRIP, 0, 4);
637			}
638	bfe45b4a	Leszek Koltunski	}
639
640			///////////////////////////////////////////////////////////////////////////////////////////////////
641
642	7602a827	Leszek Koltunski	static void blitDepthPriv(InternalOutputSurface surface, float corrW, float corrH)
643	bfe45b4a	Leszek Koltunski	{
644	f482efa3	Leszek Koltunski	if( mBlitDepthProgram!=null )
645			{
646			mBlitDepthProgram.useProgram();
647
648			GLES30.glViewport(0, 0, surface.mWidth, surface.mHeight );
649			GLES30.glUniform1i(mBlitDepthTextureH, 0);
650			GLES30.glUniform1i(mBlitDepthDepthTextureH, 1);
651			GLES30.glUniform2f(mBlitDepthTexCorrH, corrW, corrH );
652			GLES30.glUniform1f( mBlitDepthDepthH , 1.0f-surface.mNear);
653			GLES30.glVertexAttribPointer(mBlitDepthProgram.mAttribute[0], 2, GLES30.GL_FLOAT, false, 0, mQuadPositions);
654			GLES30.glDrawArrays(GLES30.GL_TRIANGLE_STRIP, 0, 4);
655			}
656	bfe45b4a	Leszek Koltunski	}
657
658			///////////////////////////////////////////////////////////////////////////////////////////////////
659	b7074bc6	Leszek Koltunski	// yes it is safe to be mixing 3.0 and 3.1 like that, senior members of the OpenGL discussions forum assert
660	bfe45b4a	Leszek Koltunski
661			private static int printPreviousBuffer()
662			{
663			int counter = 0;
664
665	b7074bc6	Leszek Koltunski	ByteBuffer atomicBuf = (ByteBuffer)GLES30.glMapBufferRange( GLES31.GL_ATOMIC_COUNTER_BUFFER, 0, 4,
666			GLES30.GL_MAP_READ_BIT);
667	bfe45b4a	Leszek Koltunski	if( atomicBuf!=null )
668			{
669			IntBuffer atomicIntBuf = atomicBuf.order(ByteOrder.nativeOrder()).asIntBuffer();
670			counter = atomicIntBuf.get(0);
671			}
672			else
673			{
674	b7074bc6	Leszek Koltunski	Log.e("effects", "print: failed to map atomic buffer");
675	bfe45b4a	Leszek Koltunski	}
676
677	b7074bc6	Leszek Koltunski	GLES30.glUnmapBuffer(GLES31.GL_ATOMIC_COUNTER_BUFFER);
678	bfe45b4a	Leszek Koltunski
679			return counter;
680			}
681
682			///////////////////////////////////////////////////////////////////////////////////////////////////
683
684			private static void zeroBuffer()
685			{
686	b7074bc6	Leszek Koltunski	ByteBuffer atomicBuf = (ByteBuffer)GLES30.glMapBufferRange( GLES31.GL_ATOMIC_COUNTER_BUFFER, 0, 4,
687	fd836a41	Leszek Koltunski	GLES30.GL_MAP_WRITE_BIT\|GLES30.GL_MAP_INVALIDATE_BUFFER_BIT);
688	bfe45b4a	Leszek Koltunski	if( atomicBuf!=null )
689			{
690			IntBuffer atomicIntBuf = atomicBuf.order(ByteOrder.nativeOrder()).asIntBuffer();
691			atomicIntBuf.put(0,0);
692			}
693			else
694			{
695	b7074bc6	Leszek Koltunski	Log.e("effects", "zero: failed to map atomic buffer");
696	bfe45b4a	Leszek Koltunski	}
697
698	b7074bc6	Leszek Koltunski	GLES30.glUnmapBuffer(GLES31.GL_ATOMIC_COUNTER_BUFFER);
699	bfe45b4a	Leszek Koltunski	}
700
701			///////////////////////////////////////////////////////////////////////////////////////////////////
702			// reset atomic counter to 0
703
704			static int zeroOutAtomic()
705			{
706			int counter = 0;
707
708	5f35f1cb	Leszek Koltunski	if( mAtomicCounter==null )
709	bfe45b4a	Leszek Koltunski	{
710	5f35f1cb	Leszek Koltunski	mAtomicCounter = new int[mFBOQueueSize];
711
712			GLES30.glGenBuffers(mFBOQueueSize,mAtomicCounter,0);
713	bfe45b4a	Leszek Koltunski
714	5f35f1cb	Leszek Koltunski	for(int i=0; i<mFBOQueueSize; i++)
715	bfe45b4a	Leszek Koltunski	{
716	b7074bc6	Leszek Koltunski	GLES30.glBindBuffer(GLES31.GL_ATOMIC_COUNTER_BUFFER, mAtomicCounter[i]);
717			GLES30.glBufferData(GLES31.GL_ATOMIC_COUNTER_BUFFER, 4, null, GLES30.GL_DYNAMIC_DRAW);
718	bfe45b4a	Leszek Koltunski	zeroBuffer();
719			}
720			}
721
722			// reading the value of the buffer on every frame would slow down rendering by
723	d99fcc9c	Leszek Koltunski	// about 3%; doing it only once every 5 frames affects speed by less than 1%.
724	bfe45b4a	Leszek Koltunski	if( mCurrBuffer==0 )
725			{
726	b7074bc6	Leszek Koltunski	GLES30.glBindBufferBase(GLES31.GL_ATOMIC_COUNTER_BUFFER, 0, mAtomicCounter[mCurrBuffer]);
727	bfe45b4a	Leszek Koltunski	counter = printPreviousBuffer();
728			}
729
730	5f35f1cb	Leszek Koltunski	if( ++mCurrBuffer>=mFBOQueueSize ) mCurrBuffer = 0;
731	bfe45b4a	Leszek Koltunski
732	b7074bc6	Leszek Koltunski	GLES30.glBindBufferBase(GLES31.GL_ATOMIC_COUNTER_BUFFER, 0, mAtomicCounter[mCurrBuffer]);
733	bfe45b4a	Leszek Koltunski	zeroBuffer();
734
735			return counter;
736			}
737
738			///////////////////////////////////////////////////////////////////////////////////////////////////
739	809dcae3	Leszek Koltunski	// Pass1 of the OIT algorithm. Clear per-pixel head-pointers.
740	bfe45b4a	Leszek Koltunski
741	7602a827	Leszek Koltunski	static void oitClear(InternalOutputSurface surface, int counter)
742	bfe45b4a	Leszek Koltunski	{
743	d99fcc9c	Leszek Koltunski	if( mOITClearProgram==null )
744	bfe45b4a	Leszek Koltunski	{
745	d99fcc9c	Leszek Koltunski	if( mGLSL>=310 && !mOITCompilationAttempted )
746	f482efa3	Leszek Koltunski	{
747	d99fcc9c	Leszek Koltunski	mOITCompilationAttempted = true;
748	bfe45b4a	Leszek Koltunski
749	d99fcc9c	Leszek Koltunski	try
750			{
751			createOITProgram(mResources);
752			}
753			catch(Exception ex)
754			{
755			mListener.distortedException(ex);
756			return;
757			}
758	f482efa3	Leszek Koltunski	}
759	d99fcc9c	Leszek Koltunski	else
760	f482efa3	Leszek Koltunski	{
761	d99fcc9c	Leszek Koltunski	return;
762	f482efa3	Leszek Koltunski	}
763	d99fcc9c	Leszek Koltunski	}
764	bfe45b4a	Leszek Koltunski
765	d99fcc9c	Leszek Koltunski	if( mLinkedListSSBO[0]<0 )
766			{
767			GLES30.glGenBuffers(1,mLinkedListSSBO,0);
768	bfe45b4a	Leszek Koltunski
769	d99fcc9c	Leszek Koltunski	int size = (int)(surface.mWidthsurface.mHeight(3mBufferSize+1)4);
770			GLES30.glBindBuffer(GLES31.GL_SHADER_STORAGE_BUFFER, mLinkedListSSBO[0]);
771			GLES30.glBufferData(GLES31.GL_SHADER_STORAGE_BUFFER, size, null, GLES30.GL_DYNAMIC_READ\|GLES30.GL_DYNAMIC_DRAW);
772			GLES30.glBindBuffer(GLES31.GL_SHADER_STORAGE_BUFFER, 0);
773
774			GLES30.glBindBufferBase(GLES31.GL_SHADER_STORAGE_BUFFER, 1, mLinkedListSSBO[0]);
775			}
776
777			// See if we have overflown the SSBO in one of the previous frames.
778			// If yes, assume we need to make the SSBO larger.
779			float overflow = counter/(mBufferSizesurface.mWidthsurface.mHeight);
780
781			if( overflow>1.0f )
782			{
783			mBufferSize *= (int)(overflow+1.0f);
784			int size = (int)(surface.mWidthsurface.mHeight(3mBufferSize+1)4);
785			GLES30.glBindBuffer(GLES31.GL_SHADER_STORAGE_BUFFER, mLinkedListSSBO[0]);
786			GLES30.glBufferData(GLES31.GL_SHADER_STORAGE_BUFFER, size, null, GLES30.GL_DYNAMIC_READ\|GLES30.GL_DYNAMIC_DRAW);
787			GLES30.glBindBuffer(GLES31.GL_SHADER_STORAGE_BUFFER, 0);
788	f482efa3	Leszek Koltunski	}
789	d99fcc9c	Leszek Koltunski
790			mOITClearProgram.useProgram();
791
792			GLES30.glViewport(0, 0, surface.mWidth, surface.mHeight );
793			GLES30.glUniform2f(mOITClearTexCorrH, 1.0f, 1.0f ); // corrections do not really matter here - only present because of common vertex shader.
794			GLES30.glUniform1f( mOITClearDepthH , 1.0f); // likewise depth
795			GLES30.glUniform2ui(mOITClearSizeH, surface.mWidth, surface.mHeight);
796			GLES30.glVertexAttribPointer(mOITClearProgram.mAttribute[0], 2, GLES30.GL_FLOAT, false, 0, mQuadPositions);
797			GLES30.glDrawArrays(GLES30.GL_TRIANGLE_STRIP, 0, 4);
798	bfe45b4a	Leszek Koltunski	}
799
800			///////////////////////////////////////////////////////////////////////////////////////////////////
801			// Pass2 of the OIT algorithm - build per-pixel linked lists.
802
803	7602a827	Leszek Koltunski	static void oitBuild(InternalOutputSurface surface, float corrW, float corrH)
804	bfe45b4a	Leszek Koltunski	{
805	f482efa3	Leszek Koltunski	if( mOITBuildProgram!=null )
806			{
807			mOITBuildProgram.useProgram();
808
809			GLES30.glViewport(0, 0, surface.mWidth, surface.mHeight );
810			GLES30.glUniform1i(mOITBuildTextureH, 0);
811			GLES30.glUniform1i(mOITBuildDepthTextureH, 1);
812			GLES30.glUniform2f(mOITBuildTexCorrH, corrW, corrH );
813			GLES30.glUniform2ui(mOITBuildSizeH, surface.mWidth, surface.mHeight);
814			GLES30.glUniform1ui(mOITBuildNumRecordsH, (int)(mBufferSizesurface.mWidthsurface.mHeight) );
815			GLES30.glUniform1f(mOITBuildDepthH , 1.0f-surface.mNear);
816			GLES30.glVertexAttribPointer(mOITBuildProgram.mAttribute[0], 2, GLES30.GL_FLOAT, false, 0, mQuadPositions);
817			GLES30.glDrawArrays(GLES30.GL_TRIANGLE_STRIP, 0, 4);
818			}
819	bfe45b4a	Leszek Koltunski	}
820
821			///////////////////////////////////////////////////////////////////////////////////////////////////
822			// Pass3 of the OIT algorithm. Cut occluded parts of the linked list.
823
824	7602a827	Leszek Koltunski	static void oitCollapse(InternalOutputSurface surface, float corrW, float corrH)
825	bfe45b4a	Leszek Koltunski	{
826	f482efa3	Leszek Koltunski	if( mOITCollapseProgram!=null )
827			{
828			mOITCollapseProgram.useProgram();
829
830			GLES30.glViewport(0, 0, surface.mWidth, surface.mHeight );
831			GLES30.glUniform1i(mOITCollapseDepthTextureH, 1);
832			GLES30.glUniform2f(mOITCollapseTexCorrH, corrW, corrH );
833			GLES30.glUniform2ui(mOITCollapseSizeH, surface.mWidth, surface.mHeight);
834			GLES30.glUniform1f( mOITCollapseDepthH , 1.0f-surface.mNear);
835			GLES30.glVertexAttribPointer(mOITCollapseProgram.mAttribute[0], 2, GLES30.GL_FLOAT, false, 0, mQuadPositions);
836			GLES30.glDrawArrays(GLES30.GL_TRIANGLE_STRIP, 0, 4);
837			}
838	bfe45b4a	Leszek Koltunski	}
839
840			///////////////////////////////////////////////////////////////////////////////////////////////////
841			// Pass4 of the OIT algorithm. Render all the transparent pixels from the per-pixel linked lists.
842
843	7602a827	Leszek Koltunski	static void oitRender(InternalOutputSurface surface, float corrW, float corrH)
844	bfe45b4a	Leszek Koltunski	{
845	f482efa3	Leszek Koltunski	if( mOITRenderProgram!=null )
846			{
847			mOITRenderProgram.useProgram();
848
849			GLES30.glViewport(0, 0, surface.mWidth, surface.mHeight );
850			GLES30.glUniform2f(mOITRenderTexCorrH, corrW, corrH );
851			GLES30.glUniform2ui(mOITRenderSizeH, surface.mWidth, surface.mHeight);
852			GLES30.glUniform1f( mOITRenderDepthH , 1.0f-surface.mNear);
853			GLES30.glVertexAttribPointer(mOITRenderProgram.mAttribute[0], 2, GLES30.GL_FLOAT, false, 0, mQuadPositions);
854			GLES30.glDrawArrays(GLES30.GL_TRIANGLE_STRIP, 0, 4);
855			}
856	bfe45b4a	Leszek Koltunski	}
857
858			///////////////////////////////////////////////////////////////////////////////////////////////////
859
860			static void setSSBOSize(float size)
861			{
862			mBufferSize = size;
863			}
864
865	5f35f1cb	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
866
867			static int getQueueSize()
868			{
869			return mFBOQueueSize;
870			}
871
872	edea9cf3	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
873			// ARM Mali driver r12 has problems when we keep swapping many FBOs (fixed in r22)
874	b7074bc6	Leszek Koltunski	// PowerVR GE8100 / GE8300 compiler fails to compile OIT programs.
875	edea9cf3	Leszek Koltunski
876	5f35f1cb	Leszek Koltunski	private static void detectBuggyDriversAndSetQueueSize(int queueSize)
877	edea9cf3	Leszek Koltunski	{
878	b7074bc6	Leszek Koltunski	String vendor = GLES30.glGetString(GLES30.GL_VENDOR);
879			String version = GLES30.glGetString(GLES30.GL_VERSION);
880			String renderer= GLES30.glGetString(GLES30.GL_RENDERER);
881	edea9cf3	Leszek Koltunski
882	5f35f1cb	Leszek Koltunski	mFBOQueueSize = 1;
883	edea9cf3	Leszek Koltunski
884			if( vendor.contains("ARM") )
885			{
886	5f35f1cb	Leszek Koltunski	try
887	edea9cf3	Leszek Koltunski	{
888	5f35f1cb	Leszek Koltunski	String regex = ".r(\\d+)p\\d.";
889			Pattern pattern = Pattern.compile(regex);
890			Matcher matcher = pattern.matcher(version);
891
892			if( matcher.find() )
893			{
894			String driverVersion = matcher.group(1);
895
896			if( driverVersion!=null )
897			{
898			int drvVersion = Integer.parseInt(driverVersion);
899
900			if( drvVersion<22 )
901			{
902			Log.e("DISTORTED", "You are running this on a ARM Mali driver r"+driverVersion+".\n" +
903			"This is a buggy driver, please update to r22. Inserting workaround which uses a lot of memory.");
904
905			mFBOQueueSize = queueSize;
906			}
907			}
908			}
909			}
910			catch(Exception ex)
911			{
912			android.util.Log.e("library", "exception trying to pattern match version: "+ex.toString());
913	edea9cf3	Leszek Koltunski	}
914			}
915			else if( vendor.contains("Imagination") )
916			{
917			if( renderer.contains("GE8") )
918			{
919	b7074bc6	Leszek Koltunski	Log.e("DISTORTED", "You are running this on a PowerVR GE8XXX.\nDue to a buggy compiler OIT rendering will not work");
920	a79650a2	Leszek Koltunski	Log.e("DISTORTED", "GLSL Version "+GLES30.glGetString(GLES31.GL_SHADING_LANGUAGE_VERSION));
921	edea9cf3	Leszek Koltunski	}
922			}
923			}
924
925	b7074bc6	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
926			/**
927			* Return OpenGL ES version supported by the hardware we are running on.
928	60fdf71d	Leszek Koltunski	* There are only three possibilities: 300 (OpenGL ES 3.0) or 310 (at least OpenGL ES 3.1)
929			* or 200 (OpenGL ES 2.0)
930	b7074bc6	Leszek Koltunski	*/
931	60fdf71d	Leszek Koltunski	public static int getGLSL()
932	b7074bc6	Leszek Koltunski	{
933			return mGLSL;
934			}
935
936	421c2728	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
937	310e14fb	leszek	/**
938			* Have we called onCreate yet, ie have we initialized the library?
939	1dfc9074	leszek	* @return <code>true</code> if the library is initialized and ready for action.
940	310e14fb	leszek	*/
941			public static boolean isInitialized()
942	421c2728	Leszek Koltunski	{
943	55c14a19	Leszek Koltunski	return mInitialized;
944	421c2728	Leszek Koltunski	}
945
946	6a06a912	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
947			/**
948	c43abe6c	Leszek Koltunski	* When OpenGL context gets created, call this method so that the library can initialise its internal data structures.
949	432442f9	Leszek Koltunski	* I.e. best called from GLSurfaceView.onCreate().
950	6a06a912	Leszek Koltunski	* <p>
951	432442f9	Leszek Koltunski	* Needs to be called from a thread holding the OpenGL context.
952	5f35f1cb	Leszek Koltunski	*
953	015642fb	Leszek Koltunski	* @param context Context of the App using the library - used to open up Resources and read Shader code.
954	d99fcc9c	Leszek Koltunski	* @param listener The library will send all (asynchronous!) exceptions there.
955	6a06a912	Leszek Koltunski	*/
956	d99fcc9c	Leszek Koltunski	public static void onCreate(final Context context, final ExceptionListener listener)
957	5f35f1cb	Leszek Koltunski	{
958	d99fcc9c	Leszek Koltunski	onCreate(context,listener,4);
959	5f35f1cb	Leszek Koltunski	}
960
961			///////////////////////////////////////////////////////////////////////////////////////////////////
962			/**
963			* When OpenGL context gets created, call this method so that the library can initialise its internal data structures.
964			* I.e. best called from GLSurfaceView.onCreate().
965			* <p>
966			* Needs to be called from a thread holding the OpenGL context.
967			*
968			* @param context Context of the App using the library - used to open up Resources and read Shader code.
969	d99fcc9c	Leszek Koltunski	* @param listener The library will send all (asynchronous!) exceptions there.
970	5f35f1cb	Leszek Koltunski	* @param queueSize the size of the FBO queue, a workaround for the bug on Mali drivers.
971			*/
972	d99fcc9c	Leszek Koltunski	public static void onCreate(final Context context, final ExceptionListener listener, int queueSize)
973	d6e94c84	Leszek Koltunski	{
974	30beb34f	Leszek Koltunski	final ActivityManager activityManager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
975			final ConfigurationInfo configurationInfo = activityManager.getDeviceConfigurationInfo();
976	b7074bc6	Leszek Koltunski
977			int glESversion = configurationInfo.reqGlEsVersion;
978			int major = glESversion >> 16;
979			int minor = glESversion & 0xff;
980
981	d99fcc9c	Leszek Koltunski	mListener = listener;
982
983	b7074bc6	Leszek Koltunski	if( major< 3 )
984			{
985			mGLSL = 100major + 10minor;
986	d99fcc9c	Leszek Koltunski	VertexCompilationException ex = new VertexCompilationException("at least OpenGL ES 3.0 required, this device supports only "+major+"."+minor);
987			mListener.distortedException(ex);
988	b7074bc6	Leszek Koltunski	}
989			else
990			{
991			mGLSL = (major==3 && minor==0) ? 300 : 310;
992			}
993
994			android.util.Log.e("DISTORTED", "Using OpenGL ES "+major+"."+minor);
995			mGLSL_VERSION = "#version "+mGLSL+" es\n";
996	edea9cf3	Leszek Koltunski
997			mInitialized = true;
998	d99fcc9c	Leszek Koltunski	mOITCompilationAttempted = false;
999	edea9cf3	Leszek Koltunski
1000	5f35f1cb	Leszek Koltunski	detectBuggyDriversAndSetQueueSize(queueSize);
1001	edea9cf3	Leszek Koltunski
1002	0e924ba5	Leszek Koltunski	EffectMessageSender.startSending();
1003
1004	d99fcc9c	Leszek Koltunski	mResources = context.getResources();
1005	edea9cf3	Leszek Koltunski
1006			try
1007			{
1008	d99fcc9c	Leszek Koltunski	createMainProgram();
1009	edea9cf3	Leszek Koltunski	}
1010			catch(Exception ex)
1011			{
1012	d99fcc9c	Leszek Koltunski	mListener.distortedException(ex);
1013	edea9cf3	Leszek Koltunski	}
1014
1015	f046b159	Leszek Koltunski	try
1016			{
1017	d99fcc9c	Leszek Koltunski	EffectQueuePostprocess.createPrograms(mResources, mGLSL);
1018	f046b159	Leszek Koltunski	}
1019			catch(Exception ex)
1020			{
1021	d99fcc9c	Leszek Koltunski	mListener.distortedException(ex);
1022	a13dde77	Leszek Koltunski	}
1023
1024	edea9cf3	Leszek Koltunski	try
1025			{
1026	b7074bc6	Leszek Koltunski	PostprocessEffect.createPrograms(mGLSL);
1027	edea9cf3	Leszek Koltunski	}
1028			catch(Exception ex)
1029			{
1030	d99fcc9c	Leszek Koltunski	mListener.distortedException(ex);
1031	edea9cf3	Leszek Koltunski	}
1032	6a06a912	Leszek Koltunski	}
1033
1034	05ecc6fe	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
1035			/**
1036	78e89fb5	Leszek Koltunski	* Call this so that the Library can release the OpenGL related data that needs to be recreated.
1037	05ecc6fe	Leszek Koltunski	* Must be called from Activity.onPause().
1038			*/
1039			public static void onPause()
1040			{
1041	7602a827	Leszek Koltunski	InternalObject.onPause();
1042	0273ef2a	Leszek Koltunski	Dynamic.onPause();
1043	bfe45b4a	Leszek Koltunski	mLinkedListSSBO[0]= -1;
1044	5f35f1cb	Leszek Koltunski	mAtomicCounter = null;
1045	fd836a41	Leszek Koltunski
1046			mFullProgram = null;
1047			mNormalProgram = null;
1048			mOITRenderProgram = null;
1049			mOITCollapseProgram = null;
1050			mOITBuildProgram = null;
1051			mOITClearProgram = null;
1052	05ecc6fe	Leszek Koltunski	}
1053
1054	6a06a912	Leszek Koltunski	///////////////////////////////////////////////////////////////////////////////////////////////////
1055			/**
1056			* Call this so that the Library can release its internal data structures.
1057			* Must be called from Activity.onDestroy().
1058			*/
1059			public static void onDestroy()
1060			{
1061	7602a827	Leszek Koltunski	InternalObject.onDestroy();
1062			InternalNodeData.onDestroy();
1063			InternalMaster.onDestroy();
1064			InternalOutputSurface.onDestroy();
1065	46b572b5	Leszek Koltunski	DistortedEffects.onDestroy();
1066	42571056	Leszek Koltunski	EffectQueue.onDestroy();
1067	26a4e5f6	leszek	Effect.onDestroy();
1068	07206c71	Leszek Koltunski	DeferredJobs.onDestroy();
1069	6a06a912	Leszek Koltunski	EffectMessageSender.stopSending();
1070	f8686932	Leszek Koltunski
1071	55c14a19	Leszek Koltunski	mInitialized = false;
1072	d99fcc9c	Leszek Koltunski	mOITCompilationAttempted = false;
1073
1074			mNormalProgram = null;
1075			mMainOITProgram = null;
1076			mMainProgram = null;
1077			mFullProgram = null;
1078			mOITClearProgram = null;
1079			mOITBuildProgram = null;
1080			mOITCollapseProgram= null;
1081			mOITRenderProgram = null;
1082			mBlitDepthProgram = null;
1083			mBlitProgram = null;
1084	6a06a912	Leszek Koltunski	}
1085	bfe45b4a	Leszek Koltunski
1086			///////////////////////////////////////////////////////////////////////////////////////////////////
1087			/**
1088			* Returns the maximum number of effects of a given type that can be simultaneously applied to a
1089			* single (InputSurface,MeshBase) combo.
1090			*
1091			* @param type {@link EffectType}
1092			* @return The maximum number of effects of a given type.
1093			*/
1094			@SuppressWarnings("unused")
1095			public static int getMax(EffectType type)
1096			{
1097			return EffectQueue.getMax(type.ordinal());
1098			}
1099
1100			///////////////////////////////////////////////////////////////////////////////////////////////////
1101			/**
1102			* Sets the maximum number of effects that can be stored in a single EffectQueue at one time.
1103			* This can fail if:
1104			* <ul>
1105			* <li>the value of 'max' is outside permitted range (0 ≤ max ≤ Byte.MAX_VALUE)
1106			* <li>We try to increase the value of 'max' when it is too late to do so already. It needs to be called
1107	7602a827	Leszek Koltunski	* before the Vertex Shader gets compiled, i.e. before the call to {@link DistortedLibrary#onCreate}. After this
1108	bfe45b4a	Leszek Koltunski	* time only decreasing the value of 'max' is permitted.
1109			* <li>Furthermore, this needs to be called before any instances of the DistortedEffects class get created.
1110			* </ul>
1111			*
1112			* @param type {@link EffectType}
1113			* @param max new maximum number of simultaneous effects. Has to be a non-negative number not greater
1114			* than Byte.MAX_VALUE
1115			* @return <code>true</code> if operation was successful, <code>false</code> otherwise.
1116			*/
1117			@SuppressWarnings("unused")
1118			public static boolean setMax(EffectType type, int max)
1119			{
1120			return EffectQueue.setMax(type.ordinal(),max);
1121			}
1122	f8f6d457	leszek	}

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library / src / main / java / org / distorted / library / main / DistortedLibrary.java @ a2878a67