JOGL v2.6.0-rc-20250712
JOGL, High-Performance Graphics Binding for Java™ (public API).
RedSquareES2.java
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1/**
2 * Copyright 2010 JogAmp Community. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without modification, are
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8 * conditions and the following disclaimer.
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12 * provided with the distribution.
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14 * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
15 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
16 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
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28package com.jogamp.opengl.test.junit.jogl.demos.es2;
29
30import com.jogamp.opengl.JoglVersion;
31import com.jogamp.opengl.util.GLArrayDataServer;
32import com.jogamp.opengl.util.PMVMatrix;
33import com.jogamp.opengl.util.TileRendererBase;
34import com.jogamp.opengl.util.glsl.ShaderCode;
35import com.jogamp.opengl.util.glsl.ShaderProgram;
36import com.jogamp.opengl.util.glsl.ShaderState;
37
38import com.jogamp.opengl.GL;
39import com.jogamp.opengl.GL2ES2;
40import com.jogamp.opengl.GLAutoDrawable;
41import com.jogamp.opengl.GLEventListener;
42import com.jogamp.opengl.GLUniformData;
43import com.jogamp.opengl.fixedfunc.GLMatrixFunc;
44
45public class RedSquareES2 implements GLEventListener, TileRendererBase.TileRendererListener {
46 private ShaderState st;
47 private PMVMatrix pmvMatrix;
48 private GLUniformData pmvMatrixUniform;
49 private GLArrayDataServer vertices ;
50 private GLArrayDataServer colors ;
51 private long t0;
52 private int swapInterval = 0;
53 private float aspect = 1.0f;
54 private boolean doRotate = true;
55 private boolean verbose = true;
56 private boolean clearBuffers = true;
57 private TileRendererBase tileRendererInUse = null;
58 private boolean doRotateBeforePrinting;
59
60 public RedSquareES2(final int swapInterval) {
61 this.swapInterval = swapInterval;
62 }
63
64 public RedSquareES2() {
65 this.swapInterval = 1;
66 }
67
68 @Override
70 tileRendererInUse = tr;
71 doRotateBeforePrinting = doRotate;
72 setDoRotation(false);
73 }
74 @Override
76 tileRendererInUse = null;
77 setDoRotation(doRotateBeforePrinting);
78 }
79 @Override
80 public void startTileRendering(final TileRendererBase tr) {
81 System.err.println("RedSquareES2.startTileRendering: "+tr);
82 }
83 @Override
84 public void endTileRendering(final TileRendererBase tr) {
85 System.err.println("RedSquareES2.endTileRendering: "+tr);
86 }
87
88 public void setAspect(final float aspect) { this.aspect = aspect; }
89 public void setDoRotation(final boolean rotate) { this.doRotate = rotate; }
90 public void setClearBuffers(final boolean v) { clearBuffers = v; }
91 public RedSquareES2 setVerbose(final boolean v) { verbose = v; return this; }
92
93 @Override
94 public void init(final GLAutoDrawable glad) {
95 if(verbose) {
96 System.err.println(Thread.currentThread()+" RedSquareES2.init: tileRendererInUse "+tileRendererInUse);
97 }
98 final GL2ES2 gl = glad.getGL().getGL2ES2();
99
100 if(verbose) {
101 System.err.println("RedSquareES2 init on "+Thread.currentThread());
102 System.err.println("Chosen GLCapabilities: " + glad.getChosenGLCapabilities());
103 System.err.println("INIT GL IS: " + gl.getClass().getName());
104 System.err.println(JoglVersion.getGLStrings(gl, null, false).toString());
105 }
106 if( !gl.hasGLSL() ) {
107 System.err.println("No GLSL available, no rendering.");
108 return;
109 }
110 st = new ShaderState();
111 st.setVerbose(verbose);
112 final ShaderCode vp0 = ShaderCode.create(gl, GL2ES2.GL_VERTEX_SHADER, this.getClass(), "shader",
113 "shader/bin", "RedSquareShader", true);
114 final ShaderCode fp0 = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, this.getClass(), "shader",
115 "shader/bin", "RedSquareShader", true);
116 vp0.defaultShaderCustomization(gl, true, true);
117 fp0.defaultShaderCustomization(gl, true, true);
118 final ShaderProgram sp0 = new ShaderProgram();
119 sp0.add(gl, vp0, System.err);
120 sp0.add(gl, fp0, System.err);
121 st.attachShaderProgram(gl, sp0, true);
122
123 // setup mgl_PMVMatrix
124 pmvMatrix = new PMVMatrix();
126 pmvMatrix.glLoadIdentity();
128 pmvMatrix.glLoadIdentity();
129 pmvMatrixUniform = new GLUniformData("mgl_PMVMatrix", 4, 4, pmvMatrix.getSyncPMv()); // P, Mv
130 st.ownUniform(pmvMatrixUniform);
131 st.uniform(gl, pmvMatrixUniform);
132
133 // Allocate Vertex Array
134 vertices = GLArrayDataServer.createGLSL("mgl_Vertex", 3, GL.GL_FLOAT, false, 4, GL.GL_STATIC_DRAW);
135 vertices.putf(-2); vertices.putf( 2); vertices.putf( 0);
136 vertices.putf( 2); vertices.putf( 2); vertices.putf( 0);
137 vertices.putf(-2); vertices.putf(-2); vertices.putf( 0);
138 vertices.putf( 2); vertices.putf(-2); vertices.putf( 0);
139 vertices.seal(gl, true);
140 st.ownAttribute(vertices, true);
141 vertices.enableBuffer(gl, false);
142
143 // Allocate Color Array
144 colors= GLArrayDataServer.createGLSL("mgl_Color", 4, GL.GL_FLOAT, false, 4, GL.GL_STATIC_DRAW);
145 colors.putf(1); colors.putf(0); colors.putf(0); colors.putf(1);
146 colors.putf(0); colors.putf(0); colors.putf(1); colors.putf(1);
147 colors.putf(1); colors.putf(0); colors.putf(0); colors.putf(1);
148 colors.putf(1); colors.putf(0); colors.putf(0); colors.putf(1);
149 colors.seal(gl, true);
150 st.ownAttribute(colors, true);
151 colors.enableBuffer(gl, false);
152
153 // OpenGL Render Settings
155 st.useProgram(gl, false);
156
157 t0 = System.currentTimeMillis();
158 if(verbose) {
159 System.err.println(Thread.currentThread()+" RedSquareES2.init FIN");
160 }
161 }
162
163 @Override
164 public void display(final GLAutoDrawable glad) {
165 final long t1 = System.currentTimeMillis();
166
167 final GL2ES2 gl = glad.getGL().getGL2ES2();
168 if( clearBuffers ) {
169 if( null != tileRendererInUse ) {
170 gl.glClearColor(1.0f, 1.0f, 1.0f, 0.0f);
171 } else {
172 gl.glClearColor(0, 0, 0, 0);
173 }
175 }
176 if( !gl.hasGLSL() ) {
177 return;
178 }
179 st.useProgram(gl, true);
180 // One rotation every four seconds
182 pmvMatrix.glLoadIdentity();
183 pmvMatrix.glTranslatef(0, 0, -10);
184 if(doRotate) {
185 final float ang = ((t1 - t0) * 360.0F) / 4000.0F;
186 pmvMatrix.glRotatef(ang, 0, 0, 1);
187 pmvMatrix.glRotatef(ang, 0, 1, 0);
188 }
189 st.uniform(gl, pmvMatrixUniform);
190
191 // Draw a square
192 vertices.enableBuffer(gl, true);
193 colors.enableBuffer(gl, true);
195 vertices.enableBuffer(gl, false);
196 colors.enableBuffer(gl, false);
197 st.useProgram(gl, false);
198 }
199
200 @Override
201 public void reshape(final GLAutoDrawable glad, final int x, final int y, final int width, final int height) {
202 final GL2ES2 gl = glad.getGL().getGL2ES2();
203 gl.setSwapInterval(swapInterval);
204 reshapeImpl(gl, x, y, width, height, width, height);
205 }
206
207 @Override
208 public void reshapeTile(final TileRendererBase tr,
209 final int tileX, final int tileY, final int tileWidth, final int tileHeight,
210 final int imageWidth, final int imageHeight) {
211 final GL2ES2 gl = tr.getAttachedDrawable().getGL().getGL2ES2();
212 gl.setSwapInterval(0);
213 reshapeImpl(gl, tileX, tileY, tileWidth, tileHeight, imageWidth, imageHeight);
214 }
215
216 void reshapeImpl(final GL2ES2 gl, final int tileX, final int tileY, final int tileWidth, final int tileHeight, final int imageWidth, final int imageHeight) {
217 if(verbose) {
218 System.err.println(Thread.currentThread()+" RedSquareES2.reshape "+tileX+"/"+tileY+" "+tileWidth+"x"+tileHeight+" of "+imageWidth+"x"+imageHeight+", swapInterval "+swapInterval+", drawable 0x"+Long.toHexString(gl.getContext().getGLDrawable().getHandle())+", tileRendererInUse "+tileRendererInUse);
219 }
220 // Thread.dumpStack();
221 if( !gl.hasGLSL() ) {
222 return;
223 }
224
225 st.useProgram(gl, true);
226 // Set location in front of camera
227 pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
228 pmvMatrix.glLoadIdentity();
229
230 // compute projection parameters 'normal' perspective
231 final float fovy=45f;
232 final float aspect2 = ( (float) imageWidth / (float) imageHeight ) / aspect;
233 final float zNear=1f;
234 final float zFar=100f;
235
236 // compute projection parameters 'normal' frustum
237 final float top=(float)Math.tan(fovy*((float)Math.PI)/360.0f)*zNear;
238 final float bottom=-1.0f*top;
239 final float left=aspect2*bottom;
240 final float right=aspect2*top;
241 final float w = right - left;
242 final float h = top - bottom;
243
244 // compute projection parameters 'tiled'
245 final float l = left + tileX * w / imageWidth;
246 final float r = l + tileWidth * w / imageWidth;
247 final float b = bottom + tileY * h / imageHeight;
248 final float t = b + tileHeight * h / imageHeight;
249
250 pmvMatrix.glFrustumf(l, r, b, t, zNear, zFar);
251 //pmvMatrix.glOrthof(-4.0f, 4.0f, -4.0f, 4.0f, 1.0f, 100.0f);
252 st.uniform(gl, pmvMatrixUniform);
253 st.useProgram(gl, false);
254
255 System.err.println(Thread.currentThread()+" RedSquareES2.reshape FIN");
256 }
257
258 @Override
259 public void dispose(final GLAutoDrawable glad) {
260 if(verbose) {
261 System.err.println(Thread.currentThread()+" RedSquareES2.dispose: tileRendererInUse "+tileRendererInUse);
262 }
263 final GL2ES2 gl = glad.getGL().getGL2ES2();
264 if( !gl.hasGLSL() ) {
265 return;
266 }
267 st.destroy(gl);
268 st = null;
269 pmvMatrix = null;
270 if(verbose) {
271 System.err.println(Thread.currentThread()+" RedSquareES2.dispose FIN");
272 }
273 }
274}
final SyncMatrices4f getSyncPMv()
Returns SyncMatrices4f of 2 matrices within one FloatBuffer: P and Mv.
abstract GLDrawable getGLDrawable()
Returns the write-drawable this context uses for framebuffer operations.
GLSL uniform data wrapper encapsulating data to be uploaded to the GPU as a uniform.
static StringBuilder getGLStrings(final GL gl, final StringBuilder sb)
void display(final GLAutoDrawable glad)
Called by the drawable to initiate OpenGL rendering by the client.
void addTileRendererNotify(final TileRendererBase tr)
The owning GLAutoDrawable is attached to the given TileRendererBase instance.
void endTileRendering(final TileRendererBase tr)
Called by the TileRenderer during tile-rendering after TileRendererBase#endTile(GL) and GLAutoDrawabl...
void reshapeTile(final TileRendererBase tr, final int tileX, final int tileY, final int tileWidth, final int tileHeight, final int imageWidth, final int imageHeight)
Called by the TileRendererBase during tile-rendering via an attached GLAutoDrawable's GLAutoDrawable#...
void dispose(final GLAutoDrawable glad)
Notifies the listener to perform the release of all OpenGL resources per GLContext,...
void startTileRendering(final TileRendererBase tr)
Called by the TileRendererBase during tile-rendering after TileRendererBase#beginTile(GL) and before ...
void reshape(final GLAutoDrawable glad, final int x, final int y, final int width, final int height)
Called by the drawable during the first repaint after the component has been resized.
void init(final GLAutoDrawable glad)
Called by the drawable immediately after the OpenGL context is initialized.
void removeTileRendererNotify(final TileRendererBase tr)
The owning GLAutoDrawable is detached from the given TileRendererBase instance.
void seal(final GL gl, final boolean seal)
Convenience method calling seal(boolean) and enableBuffer(GL, boolean).
void enableBuffer(final GL gl, final boolean enable)
Enables the buffer if enable is true, and transfers the data if required.
static GLArrayDataServer createGLSL(final String name, final int compsPerElement, final int dataType, final boolean normalized, final int initialElementCount, final int vboUsage)
Create a VBO, using a custom GLSL array attribute name and starting with a new created Buffer object ...
PMVMatrix implements a subset of the fixed function pipeline GLMatrixFunc using PMVMatrix4f.
Definition: PMVMatrix.java:62
final void glTranslatef(final float x, final float y, final float z)
Translate the current matrix.
Definition: PMVMatrix.java:379
final void glMatrixMode(final int matrixName)
Sets the current matrix mode.
Definition: PMVMatrix.java:218
final void glFrustumf(final float left, final float right, final float bottom, final float top, final float zNear, final float zFar)
Multiply the current matrix with the frustum matrix.
Definition: PMVMatrix.java:481
final void glRotatef(final float ang_deg, final float x, final float y, final float z)
Rotate the current matrix.
Definition: PMVMatrix.java:413
final void glLoadIdentity()
Load the current matrix with the identity matrix.
Definition: PMVMatrix.java:325
A fairly direct port of Brian Paul's tile rendering library, found at http://www.mesa3d....
final GLAutoDrawable getAttachedDrawable()
Returns a previously attached GLAutoDrawable, null if none is attached.
Convenient shader code class to use and instantiate vertex or fragment programs.
Definition: ShaderCode.java:75
final int defaultShaderCustomization(final GL2ES2 gl, final boolean preludeVersion, final boolean addDefaultPrecision)
Default customization of this shader source code.
static ShaderCode create(final GL2ES2 gl, final int type, final int count, final Class<?> context, final String[] sourceFiles, final boolean mutableStringBuilder)
Creates a complete ShaderCode object while reading all shader source of sourceFiles,...
synchronized void add(final ShaderCode shaderCode)
Adds a new shader to this program.
ShaderState allows to sharing data between shader programs, while updating the attribute and uniform ...
void ownAttribute(final GLArrayData attribute, final boolean own)
Binds or unbinds the GLArrayData lifecycle to this ShaderState.
synchronized void useProgram(final GL2ES2 gl, final boolean on)
Turns the shader program on or off.
synchronized boolean attachShaderProgram(final GL2ES2 gl, final ShaderProgram prog, final boolean enable)
Attach or switch a shader program.
synchronized void destroy(final GL2ES2 gl)
Calls release(gl, true, true, true).
boolean uniform(final GL2ES2 gl, final GLUniformData data)
Set the uniform data, if it's location is valid, i.e.
void ownUniform(final GLUniformData uniform)
Bind the GLUniform lifecycle to this ShaderState.
static final int GL_VERTEX_SHADER
GL_ES_VERSION_2_0, GL_VERSION_2_0, GL_EXT_vertex_shader, GL_ARB_vertex_shader Alias for: GL_VERTEX_SH...
Definition: GL2ES2.java:39
static final int GL_FRAGMENT_SHADER
GL_ES_VERSION_2_0, GL_VERSION_2_0, GL_ATI_fragment_shader, GL_ARB_fragment_shader Alias for: GL_FRAGM...
Definition: GL2ES2.java:541
A higher-level abstraction than GLDrawable which supplies an event based mechanism (GLEventListener) ...
GL getGL()
Returns the GL pipeline object this GLAutoDrawable uses.
boolean hasGLSL()
Indicates whether this GL object supports GLSL.
GL2ES2 getGL2ES2()
Casts this object to the GL2ES2 interface.
void setSwapInterval(int interval)
Set the swap interval of the current context and attached onscreen GLDrawable.
GLContext getContext()
Returns the GLContext associated which this GL object.
GLCapabilitiesImmutable getChosenGLCapabilities()
Fetches the GLCapabilitiesImmutable corresponding to the chosen OpenGL capabilities (pixel format / v...
long getHandle()
Returns the GL drawable handle, guaranteed to be valid after realization and while it's surface is be...
Declares events which client code can use to manage OpenGL rendering into a GLAutoDrawable.
void glDrawArrays(int mode, int first, int count)
Entry point to C language function: void {@native glDrawArrays}(GLenum mode, GLint first,...
static final int GL_STATIC_DRAW
GL_VERSION_1_5, GL_ES_VERSION_2_0, GL_VERSION_ES_1_0, GL_ARB_vertex_buffer_object Alias for: GL_STATI...
Definition: GL.java:673
static final int GL_FLOAT
GL_ES_VERSION_2_0, GL_VERSION_1_1, GL_VERSION_1_0, GL_VERSION_ES_1_0 Define "GL_FLOAT" with expressio...
Definition: GL.java:786
static final int GL_COLOR_BUFFER_BIT
GL_ES_VERSION_2_0, GL_VERSION_1_1, GL_VERSION_1_0, GL_VERSION_ES_1_0 Define "GL_COLOR_BUFFER_BIT" wit...
Definition: GL.java:390
void glClearColor(float red, float green, float blue, float alpha)
Entry point to C language function: void {@native glClearColor}(GLfloat red, GLfloat green,...
void glEnable(int cap)
Entry point to C language function: void {@native glEnable}(GLenum cap) Part of GL_ES_VERSION_2_0,...
static final int GL_DEPTH_TEST
GL_ES_VERSION_2_0, GL_VERSION_1_1, GL_VERSION_1_0, GL_VERSION_ES_1_0 Define "GL_DEPTH_TEST" with expr...
Definition: GL.java:43
void glClear(int mask)
Entry point to C language function: void {@native glClear}(GLbitfield mask) Part of GL_ES_VERSION_...
static final int GL_TRIANGLE_STRIP
GL_ES_VERSION_2_0, GL_VERSION_1_1, GL_VERSION_1_0, GL_VERSION_ES_1_0 Define "GL_TRIANGLE_STRIP" with ...
Definition: GL.java:760
static final int GL_DEPTH_BUFFER_BIT
GL_ES_VERSION_2_0, GL_VERSION_1_1, GL_VERSION_1_0, GL_VERSION_ES_1_0 Define "GL_DEPTH_BUFFER_BIT" wit...
Definition: GL.java:738
Subset of OpenGL fixed function pipeline's matrix operations.
static final int GL_PROJECTION
Matrix mode projection.
static final int GL_MODELVIEW
Matrix mode modelview.