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1989 lines (1563 loc) · 55.5 KB
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/* -*- mode: java; c-basic-offset: 2; indent-tabs-mode: nil -*- */
/*
Part of the Processing project - http://processing.org
Copyright (c) 2012-15 The Processing Foundation
Copyright (c) 2004-12 Ben Fry and Casey Reas
Copyright (c) 2001-04 Massachusetts Institute of Technology
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation, version 2.1.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General
Public License along with this library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place, Suite 330,
Boston, MA 02111-1307 USA
*/
package processing.opengl;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Shape;
import java.awt.Toolkit;
import java.awt.font.FontRenderContext;
import java.awt.font.GlyphVector;
import java.awt.geom.PathIterator;
import java.io.IOException;
import java.net.URL;
import java.nio.Buffer;
import java.nio.ByteBuffer;
import java.nio.FloatBuffer;
import java.nio.IntBuffer;
import com.jogamp.common.util.VersionNumber;
import com.jogamp.opengl.GL;
import com.jogamp.opengl.GL2;
import com.jogamp.opengl.GL2ES2;
import com.jogamp.opengl.GL2ES3;
import com.jogamp.opengl.GL2GL3;
import com.jogamp.opengl.GL3ES3;
import com.jogamp.opengl.GLAutoDrawable;
import com.jogamp.opengl.GLCapabilities;
import com.jogamp.opengl.GLCapabilitiesImmutable;
import com.jogamp.opengl.GLContext;
import com.jogamp.opengl.GLDrawable;
import com.jogamp.opengl.fixedfunc.GLMatrixFunc;
import com.jogamp.opengl.glu.GLU;
import com.jogamp.opengl.glu.GLUtessellator;
import com.jogamp.opengl.glu.GLUtessellatorCallbackAdapter;
import processing.core.PApplet;
import processing.core.PGraphics;
import processing.core.PMatrix3D;
import processing.core.PSurface;
public class PJOGL extends PGL {
// OpenGL profile to use (2, 3 or 4)
public static int profile = 2;
// User-provided icons to override defaults
protected static String[] icons = null;
// The two windowing toolkits available to use in JOGL:
public static final int AWT = 0; // http://jogamp.org/wiki/index.php/Using_JOGL_in_AWT_SWT_and_Swing
public static final int NEWT = 1; // http://jogamp.org/jogl/doc/NEWT-Overview.html
// ........................................................
// Public members to access the underlying GL objects and context
/** Basic GL functionality, common to all profiles */
public GL gl;
/** GLU interface **/
public GLU glu;
/** The rendering context (holds rendering state info) */
public GLContext context;
// ........................................................
// Additional parameters
/** Time that the Processing's animation thread will wait for JOGL's rendering
* thread to be done with a single frame.
*/
protected static int DRAW_TIMEOUT_MILLIS = 500;
// ........................................................
// Protected JOGL-specific objects needed to access the GL profiles
/** The capabilities of the OpenGL rendering surface */
protected GLCapabilitiesImmutable capabilities;
/** The rendering surface */
protected GLDrawable drawable;
/** GLES2 functionality (shaders, etc) */
protected GL2ES2 gl2;
/** GL3 interface */
protected GL2GL3 gl3;
/** GL2 desktop functionality (blit framebuffer, map buffer range,
* multisampled renderbuffers) */
protected GL2 gl2x;
/** GL3ES3 interface */
protected GL3ES3 gl3es3;
/** Stores exceptions that ocurred during drawing */
protected Exception drawException;
// ........................................................
// Utility arrays to copy projection/modelview matrices to GL
protected float[] projMatrix;
protected float[] mvMatrix;
// ........................................................
// Static initialization for some parameters that need to be different for
// JOGL
static {
MIN_DIRECT_BUFFER_SIZE = 2;
INDEX_TYPE = GL.GL_UNSIGNED_SHORT;
}
///////////////////////////////////////////////////////////////
// Initialization, finalization
public PJOGL(PGraphicsOpenGL pg) {
super(pg);
glu = new GLU();
}
@Override
public Object getNative() {
return sketch.getSurface().getNative();
}
@Override
protected void setFrameRate(float fps) {}
@Override
protected void initSurface(int antialias) {}
@Override
protected void reinitSurface() {}
@Override
protected void registerListeners() {}
static public void setIcon(String... icons) {
PJOGL.icons = new String[icons.length];
PApplet.arrayCopy(icons, PJOGL.icons);
}
///////////////////////////////////////////////////////////////
// Public methods to get/set renderer's properties
public void setCaps(GLCapabilities caps) {
reqNumSamples = caps.getNumSamples();
capabilities = caps;
}
public GLCapabilitiesImmutable getCaps() {
return capabilities;
}
public void setFps(float fps) {
if (!setFps || targetFps != fps) {
if (60 < fps) {
// Disables v-sync
gl.setSwapInterval(0);
} else if (30 < fps) {
gl.setSwapInterval(1);
} else {
gl.setSwapInterval(2);
}
targetFps = currentFps = fps;
setFps = true;
}
}
@Override
protected int getDepthBits() {
return capabilities.getDepthBits();
}
@Override
protected int getStencilBits() {
return capabilities.getStencilBits();
}
@Override
protected float getPixelScale() {
PSurface surf = sketch.getSurface();
if (surf == null) {
return graphics.pixelDensity;
} else if (surf instanceof PSurfaceJOGL) {
return ((PSurfaceJOGL)surf).getPixelScale();
} else {
throw new RuntimeException("Renderer cannot find a JOGL surface");
}
}
@Override
protected void getGL(PGL pgl) {
PJOGL pjogl = (PJOGL)pgl;
this.drawable = pjogl.drawable;
this.context = pjogl.context;
this.glContext = pjogl.glContext;
setThread(pjogl.glThread);
this.gl = pjogl.gl;
this.gl2 = pjogl.gl2;
this.gl2x = pjogl.gl2x;
this.gl3 = pjogl.gl3;
this.gl3es3 = pjogl.gl3es3;
}
public void getGL(GLAutoDrawable glDrawable) {
context = glDrawable.getContext();
glContext = context.hashCode();
setThread(Thread.currentThread());
gl = context.getGL();
gl2 = gl.getGL2ES2();
try {
gl2x = gl.getGL2();
} catch (com.jogamp.opengl.GLException e) {
gl2x = null;
}
try {
gl3 = gl.getGL2GL3();
} catch (com.jogamp.opengl.GLException e) {
gl3 = null;
}
try {
gl3es3 = gl.getGL3ES3();
} catch (com.jogamp.opengl.GLException e) {
gl3es3 = null;
}
}
@Override
protected boolean canDraw() { return true; }
@Override
protected void requestFocus() {}
@Override
protected void requestDraw() {}
@Override
protected void swapBuffers() {
PSurfaceJOGL surf = (PSurfaceJOGL)sketch.getSurface();
surf.window.swapBuffers();
}
@Override
protected void initFBOLayer() {
if (0 < sketch.frameCount) {
if (isES()) initFBOLayerES();
else initFBOLayerGL();
}
}
private void initFBOLayerES() {
IntBuffer buf = allocateDirectIntBuffer(fboWidth * fboHeight);
if (hasReadBuffer()) readBuffer(BACK);
readPixelsImpl(0, 0, fboWidth, fboHeight, RGBA, UNSIGNED_BYTE, buf);
bindTexture(TEXTURE_2D, glColorTex.get(frontTex));
texSubImage2D(TEXTURE_2D, 0, 0, 0, fboWidth, fboHeight, RGBA, UNSIGNED_BYTE, buf);
bindTexture(TEXTURE_2D, glColorTex.get(backTex));
texSubImage2D(TEXTURE_2D, 0, 0, 0, fboWidth, fboHeight, RGBA, UNSIGNED_BYTE, buf);
bindTexture(TEXTURE_2D, 0);
bindFramebufferImpl(FRAMEBUFFER, 0);
}
private void initFBOLayerGL() {
// Copy the contents of the front and back screen buffers to the textures
// of the FBO, so they are properly initialized. Note that the front buffer
// of the default framebuffer (the screen) contains the previous frame:
// https://www.opengl.org/wiki/Default_Framebuffer
// so it is copied to the front texture of the FBO layer:
if (pclearColor || 0 < pgeomCount || !sketch.isLooping()) {
if (hasReadBuffer()) readBuffer(FRONT);
} else {
// ...except when the previous frame has not been cleared and nothing was
// rendered while looping. In this case the back buffer, which holds the
// initial state of the previous frame, still contains the most up-to-date
// screen state.
readBuffer(BACK);
}
bindFramebufferImpl(DRAW_FRAMEBUFFER, glColorFbo.get(0));
framebufferTexture2D(FRAMEBUFFER, COLOR_ATTACHMENT0,
TEXTURE_2D, glColorTex.get(frontTex), 0);
if (hasDrawBuffer()) drawBuffer(COLOR_ATTACHMENT0);
blitFramebuffer(0, 0, fboWidth, fboHeight,
0, 0, fboWidth, fboHeight,
COLOR_BUFFER_BIT, NEAREST);
readBuffer(BACK);
bindFramebufferImpl(DRAW_FRAMEBUFFER, glColorFbo.get(0));
framebufferTexture2D(FRAMEBUFFER, COLOR_ATTACHMENT0,
TEXTURE_2D, glColorTex.get(backTex), 0);
drawBuffer(COLOR_ATTACHMENT0);
blitFramebuffer(0, 0, fboWidth, fboHeight,
0, 0, fboWidth, fboHeight,
COLOR_BUFFER_BIT, NEAREST);
bindFramebufferImpl(FRAMEBUFFER, 0);
}
@Override
protected void beginGL() {
PMatrix3D proj = graphics.projection;
PMatrix3D mdl = graphics.modelview;
if (gl2x != null) {
if (projMatrix == null) {
projMatrix = new float[16];
}
gl2x.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
projMatrix[ 0] = proj.m00;
projMatrix[ 1] = proj.m10;
projMatrix[ 2] = proj.m20;
projMatrix[ 3] = proj.m30;
projMatrix[ 4] = proj.m01;
projMatrix[ 5] = proj.m11;
projMatrix[ 6] = proj.m21;
projMatrix[ 7] = proj.m31;
projMatrix[ 8] = proj.m02;
projMatrix[ 9] = proj.m12;
projMatrix[10] = proj.m22;
projMatrix[11] = proj.m32;
projMatrix[12] = proj.m03;
projMatrix[13] = proj.m13;
projMatrix[14] = proj.m23;
projMatrix[15] = proj.m33;
gl2x.glLoadMatrixf(projMatrix, 0);
if (mvMatrix == null) {
mvMatrix = new float[16];
}
gl2x.glMatrixMode(GLMatrixFunc.GL_MODELVIEW);
mvMatrix[ 0] = mdl.m00;
mvMatrix[ 1] = mdl.m10;
mvMatrix[ 2] = mdl.m20;
mvMatrix[ 3] = mdl.m30;
mvMatrix[ 4] = mdl.m01;
mvMatrix[ 5] = mdl.m11;
mvMatrix[ 6] = mdl.m21;
mvMatrix[ 7] = mdl.m31;
mvMatrix[ 8] = mdl.m02;
mvMatrix[ 9] = mdl.m12;
mvMatrix[10] = mdl.m22;
mvMatrix[11] = mdl.m32;
mvMatrix[12] = mdl.m03;
mvMatrix[13] = mdl.m13;
mvMatrix[14] = mdl.m23;
mvMatrix[15] = mdl.m33;
gl2x.glLoadMatrixf(mvMatrix, 0);
}
}
@Override
protected boolean hasFBOs() {
if (context.hasBasicFBOSupport()) return true;
else return super.hasFBOs();
}
@Override
protected boolean hasShaders() {
if (context.hasGLSL()) return true;
else return super.hasShaders();
}
public void init(GLAutoDrawable glDrawable) {
capabilities = glDrawable.getChosenGLCapabilities();
if (!hasFBOs()) {
throw new RuntimeException(MISSING_FBO_ERROR);
}
if (!hasShaders()) {
throw new RuntimeException(MISSING_GLSL_ERROR);
}
}
///////////////////////////////////////////////////////////
// Utility functions
@Override
protected void enableTexturing(int target) {
if (target == TEXTURE_2D) {
texturingTargets[0] = true;
} else if (target == TEXTURE_RECTANGLE) {
texturingTargets[1] = true;
}
}
@Override
protected void disableTexturing(int target) {
if (target == TEXTURE_2D) {
texturingTargets[0] = false;
} else if (target == TEXTURE_RECTANGLE) {
texturingTargets[1] = false;
}
}
/**
* Convenience method to get a legit FontMetrics object. Where possible,
* override this any renderer subclass so that you're not using what's
* returned by getDefaultToolkit() to get your metrics.
*/
@SuppressWarnings("deprecation")
private FontMetrics getFontMetrics(Font font) { // ignore
return Toolkit.getDefaultToolkit().getFontMetrics(font);
}
/**
* Convenience method to jump through some Java2D hoops and get an FRC.
*/
private FontRenderContext getFontRenderContext(Font font) { // ignore
return getFontMetrics(font).getFontRenderContext();
}
@Override
protected int getFontAscent(Object font) {
return getFontMetrics((Font) font).getAscent();
}
@Override
protected int getFontDescent(Object font) {
return getFontMetrics((Font) font).getDescent();
}
@Override
protected int getTextWidth(Object font, char[] buffer, int start, int stop) {
// maybe should use one of the newer/fancier functions for this?
int length = stop - start;
FontMetrics metrics = getFontMetrics((Font) font);
return metrics.charsWidth(buffer, start, length);
}
@Override
protected Object getDerivedFont(Object font, float size) {
return ((Font) font).deriveFont(size);
}
@Override
protected int getGLSLVersion() {
VersionNumber vn = context.getGLSLVersionNumber();
return vn.getMajor() * 100 + vn.getMinor();
}
@Override
protected String getGLSLVersionSuffix() {
VersionNumber vn = context.getGLSLVersionNumber();
if (context.isGLESProfile() && 1 < vn.getMajor()) {
return " es";
} else {
return "";
}
}
@Override
protected String[] loadVertexShader(String filename) {
return loadVertexShader(filename, getGLSLVersion(), getGLSLVersionSuffix());
}
@Override
protected String[] loadFragmentShader(String filename) {
return loadFragmentShader(filename, getGLSLVersion(), getGLSLVersionSuffix());
}
@Override
protected String[] loadVertexShader(URL url) {
return loadVertexShader(url, getGLSLVersion(), getGLSLVersionSuffix());
}
@Override
protected String[] loadFragmentShader(URL url) {
return loadFragmentShader(url, getGLSLVersion(), getGLSLVersionSuffix());
}
@Override
protected String[] loadFragmentShader(String filename, int version, String versionSuffix) {
String[] fragSrc0 = sketch.loadStrings(filename);
return preprocessFragmentSource(fragSrc0, version, versionSuffix);
}
@Override
protected String[] loadVertexShader(String filename, int version, String versionSuffix) {
String[] vertSrc0 = sketch.loadStrings(filename);
return preprocessVertexSource(vertSrc0, version, versionSuffix);
}
@Override
protected String[] loadFragmentShader(URL url, int version, String versionSuffix) {
try {
String[] fragSrc0 = PApplet.loadStrings(url.openStream());
return preprocessFragmentSource(fragSrc0, version, versionSuffix);
} catch (IOException e) {
PGraphics.showException("Cannot load fragment shader " + url.getFile());
}
return null;
}
@Override
protected String[] loadVertexShader(URL url, int version, String versionSuffix) {
try {
String[] vertSrc0 = PApplet.loadStrings(url.openStream());
return preprocessVertexSource(vertSrc0, version, versionSuffix);
} catch (IOException e) {
PGraphics.showException("Cannot load vertex shader " + url.getFile());
}
return null;
}
///////////////////////////////////////////////////////////
// Tessellator
@Override
protected Tessellator createTessellator(TessellatorCallback callback) {
return new Tessellator(callback);
}
protected static class Tessellator implements PGL.Tessellator {
protected GLUtessellator tess;
protected TessellatorCallback callback;
protected GLUCallback gluCallback;
public Tessellator(TessellatorCallback callback) {
this.callback = callback;
tess = GLU.gluNewTess();
gluCallback = new GLUCallback();
GLU.gluTessCallback(tess, GLU.GLU_TESS_BEGIN, gluCallback);
GLU.gluTessCallback(tess, GLU.GLU_TESS_END, gluCallback);
GLU.gluTessCallback(tess, GLU.GLU_TESS_VERTEX, gluCallback);
GLU.gluTessCallback(tess, GLU.GLU_TESS_COMBINE, gluCallback);
GLU.gluTessCallback(tess, GLU.GLU_TESS_ERROR, gluCallback);
}
@Override
public void setCallback(int flag) {
GLU.gluTessCallback(tess, flag, gluCallback);
}
@Override
public void setWindingRule(int rule) {
setProperty(GLU.GLU_TESS_WINDING_RULE, rule);
}
public void setProperty(int property, int value) {
GLU.gluTessProperty(tess, property, value);
}
@Override
public void beginPolygon() {
beginPolygon(null);
}
@Override
public void beginPolygon(Object data) {
GLU.gluTessBeginPolygon(tess, data);
}
@Override
public void endPolygon() {
GLU.gluTessEndPolygon(tess);
}
@Override
public void beginContour() {
GLU.gluTessBeginContour(tess);
}
@Override
public void endContour() {
GLU.gluTessEndContour(tess);
}
@Override
public void addVertex(double[] v) {
addVertex(v, 0, v);
}
@Override
public void addVertex(double[] v, int n, Object data) {
GLU.gluTessVertex(tess, v, n, data);
}
protected class GLUCallback extends GLUtessellatorCallbackAdapter {
@Override
public void begin(int type) {
callback.begin(type);
}
@Override
public void end() {
callback.end();
}
@Override
public void vertex(Object data) {
callback.vertex(data);
}
@Override
public void combine(double[] coords, Object[] data,
float[] weight, Object[] outData) {
callback.combine(coords, data, weight, outData);
}
@Override
public void error(int errnum) {
callback.error(errnum);
}
}
}
@Override
protected String tessError(int err) {
return glu.gluErrorString(err);
}
///////////////////////////////////////////////////////////
// Font outline
static {
SHAPE_TEXT_SUPPORTED = true;
SEG_MOVETO = PathIterator.SEG_MOVETO;
SEG_LINETO = PathIterator.SEG_LINETO;
SEG_QUADTO = PathIterator.SEG_QUADTO;
SEG_CUBICTO = PathIterator.SEG_CUBICTO;
SEG_CLOSE = PathIterator.SEG_CLOSE;
}
@Override
protected FontOutline createFontOutline(char ch, Object font) {
return new FontOutline(ch, (Font) font);
}
protected class FontOutline implements PGL.FontOutline {
PathIterator iter;
public FontOutline(char ch, Font font) {
char[] textArray = new char[] { ch };
FontRenderContext frc = getFontRenderContext(font);
GlyphVector gv = font.createGlyphVector(frc, textArray);
Shape shp = gv.getOutline();
iter = shp.getPathIterator(null);
}
public boolean isDone() {
return iter.isDone();
}
public int currentSegment(float[] coords) {
return iter.currentSegment(coords);
}
public void next() {
iter.next();
}
}
///////////////////////////////////////////////////////////
// Constants
static {
FALSE = GL.GL_FALSE;
TRUE = GL.GL_TRUE;
INT = GL2ES2.GL_INT;
BYTE = GL.GL_BYTE;
SHORT = GL.GL_SHORT;
FLOAT = GL.GL_FLOAT;
BOOL = GL2ES2.GL_BOOL;
UNSIGNED_INT = GL.GL_UNSIGNED_INT;
UNSIGNED_BYTE = GL.GL_UNSIGNED_BYTE;
UNSIGNED_SHORT = GL.GL_UNSIGNED_SHORT;
RGB = GL.GL_RGB;
RGBA = GL.GL_RGBA;
ALPHA = GL.GL_ALPHA;
LUMINANCE = GL.GL_LUMINANCE;
LUMINANCE_ALPHA = GL.GL_LUMINANCE_ALPHA;
UNSIGNED_SHORT_5_6_5 = GL.GL_UNSIGNED_SHORT_5_6_5;
UNSIGNED_SHORT_4_4_4_4 = GL.GL_UNSIGNED_SHORT_4_4_4_4;
UNSIGNED_SHORT_5_5_5_1 = GL.GL_UNSIGNED_SHORT_5_5_5_1;
RGBA4 = GL.GL_RGBA4;
RGB5_A1 = GL.GL_RGB5_A1;
RGB565 = GL.GL_RGB565;
RGB8 = GL.GL_RGB8;
RGBA8 = GL.GL_RGBA8;
ALPHA8 = GL.GL_ALPHA8;
READ_ONLY = GL2ES3.GL_READ_ONLY;
WRITE_ONLY = GL.GL_WRITE_ONLY;
READ_WRITE = GL2ES3.GL_READ_WRITE;
TESS_WINDING_NONZERO = GLU.GLU_TESS_WINDING_NONZERO;
TESS_WINDING_ODD = GLU.GLU_TESS_WINDING_ODD;
TESS_EDGE_FLAG = GLU.GLU_TESS_EDGE_FLAG;
GENERATE_MIPMAP_HINT = GL.GL_GENERATE_MIPMAP_HINT;
FASTEST = GL.GL_FASTEST;
NICEST = GL.GL_NICEST;
DONT_CARE = GL.GL_DONT_CARE;
VENDOR = GL.GL_VENDOR;
RENDERER = GL.GL_RENDERER;
VERSION = GL.GL_VERSION;
EXTENSIONS = GL.GL_EXTENSIONS;
SHADING_LANGUAGE_VERSION = GL2ES2.GL_SHADING_LANGUAGE_VERSION;
MAX_SAMPLES = GL.GL_MAX_SAMPLES;
SAMPLES = GL.GL_SAMPLES;
ALIASED_LINE_WIDTH_RANGE = GL.GL_ALIASED_LINE_WIDTH_RANGE;
ALIASED_POINT_SIZE_RANGE = GL.GL_ALIASED_POINT_SIZE_RANGE;
DEPTH_BITS = GL.GL_DEPTH_BITS;
STENCIL_BITS = GL.GL_STENCIL_BITS;
CCW = GL.GL_CCW;
CW = GL.GL_CW;
VIEWPORT = GL.GL_VIEWPORT;
ARRAY_BUFFER = GL.GL_ARRAY_BUFFER;
ELEMENT_ARRAY_BUFFER = GL.GL_ELEMENT_ARRAY_BUFFER;
PIXEL_PACK_BUFFER = GL2ES3.GL_PIXEL_PACK_BUFFER;
MAX_VERTEX_ATTRIBS = GL2ES2.GL_MAX_VERTEX_ATTRIBS;
STATIC_DRAW = GL.GL_STATIC_DRAW;
DYNAMIC_DRAW = GL.GL_DYNAMIC_DRAW;
STREAM_DRAW = GL2ES2.GL_STREAM_DRAW;
STREAM_READ = GL2ES3.GL_STREAM_READ;
BUFFER_SIZE = GL.GL_BUFFER_SIZE;
BUFFER_USAGE = GL.GL_BUFFER_USAGE;
POINTS = GL.GL_POINTS;
LINE_STRIP = GL.GL_LINE_STRIP;
LINE_LOOP = GL.GL_LINE_LOOP;
LINES = GL.GL_LINES;
TRIANGLE_FAN = GL.GL_TRIANGLE_FAN;
TRIANGLE_STRIP = GL.GL_TRIANGLE_STRIP;
TRIANGLES = GL.GL_TRIANGLES;
CULL_FACE = GL.GL_CULL_FACE;
FRONT = GL.GL_FRONT;
BACK = GL.GL_BACK;
FRONT_AND_BACK = GL.GL_FRONT_AND_BACK;
POLYGON_OFFSET_FILL = GL.GL_POLYGON_OFFSET_FILL;
UNPACK_ALIGNMENT = GL.GL_UNPACK_ALIGNMENT;
PACK_ALIGNMENT = GL.GL_PACK_ALIGNMENT;
TEXTURE_2D = GL.GL_TEXTURE_2D;
TEXTURE_RECTANGLE = GL2GL3.GL_TEXTURE_RECTANGLE;
TEXTURE_BINDING_2D = GL.GL_TEXTURE_BINDING_2D;
TEXTURE_BINDING_RECTANGLE = GL2GL3.GL_TEXTURE_BINDING_RECTANGLE;
MAX_TEXTURE_SIZE = GL.GL_MAX_TEXTURE_SIZE;
TEXTURE_MAX_ANISOTROPY = GL.GL_TEXTURE_MAX_ANISOTROPY_EXT;
MAX_TEXTURE_MAX_ANISOTROPY = GL.GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT;
MAX_VERTEX_TEXTURE_IMAGE_UNITS = GL2ES2.GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS;
MAX_TEXTURE_IMAGE_UNITS = GL2ES2.GL_MAX_TEXTURE_IMAGE_UNITS;
MAX_COMBINED_TEXTURE_IMAGE_UNITS = GL2ES2.GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS;
NUM_COMPRESSED_TEXTURE_FORMATS = GL.GL_NUM_COMPRESSED_TEXTURE_FORMATS;
COMPRESSED_TEXTURE_FORMATS = GL.GL_COMPRESSED_TEXTURE_FORMATS;
NEAREST = GL.GL_NEAREST;
LINEAR = GL.GL_LINEAR;
LINEAR_MIPMAP_NEAREST = GL.GL_LINEAR_MIPMAP_NEAREST;
LINEAR_MIPMAP_LINEAR = GL.GL_LINEAR_MIPMAP_LINEAR;
CLAMP_TO_EDGE = GL.GL_CLAMP_TO_EDGE;
REPEAT = GL.GL_REPEAT;
TEXTURE0 = GL.GL_TEXTURE0;
TEXTURE1 = GL.GL_TEXTURE1;
TEXTURE2 = GL.GL_TEXTURE2;
TEXTURE3 = GL.GL_TEXTURE3;
TEXTURE_MIN_FILTER = GL.GL_TEXTURE_MIN_FILTER;
TEXTURE_MAG_FILTER = GL.GL_TEXTURE_MAG_FILTER;
TEXTURE_WRAP_S = GL.GL_TEXTURE_WRAP_S;
TEXTURE_WRAP_T = GL.GL_TEXTURE_WRAP_T;
TEXTURE_WRAP_R = GL2ES2.GL_TEXTURE_WRAP_R;
TEXTURE_CUBE_MAP = GL.GL_TEXTURE_CUBE_MAP;
TEXTURE_CUBE_MAP_POSITIVE_X = GL.GL_TEXTURE_CUBE_MAP_POSITIVE_X;
TEXTURE_CUBE_MAP_POSITIVE_Y = GL.GL_TEXTURE_CUBE_MAP_POSITIVE_Y;
TEXTURE_CUBE_MAP_POSITIVE_Z = GL.GL_TEXTURE_CUBE_MAP_POSITIVE_Z;
TEXTURE_CUBE_MAP_NEGATIVE_X = GL.GL_TEXTURE_CUBE_MAP_NEGATIVE_X;
TEXTURE_CUBE_MAP_NEGATIVE_Y = GL.GL_TEXTURE_CUBE_MAP_NEGATIVE_Y;
TEXTURE_CUBE_MAP_NEGATIVE_Z = GL.GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
VERTEX_SHADER = GL2ES2.GL_VERTEX_SHADER;
FRAGMENT_SHADER = GL2ES2.GL_FRAGMENT_SHADER;
INFO_LOG_LENGTH = GL2ES2.GL_INFO_LOG_LENGTH;
SHADER_SOURCE_LENGTH = GL2ES2.GL_SHADER_SOURCE_LENGTH;
COMPILE_STATUS = GL2ES2.GL_COMPILE_STATUS;
LINK_STATUS = GL2ES2.GL_LINK_STATUS;
VALIDATE_STATUS = GL2ES2.GL_VALIDATE_STATUS;
SHADER_TYPE = GL2ES2.GL_SHADER_TYPE;
DELETE_STATUS = GL2ES2.GL_DELETE_STATUS;
FLOAT_VEC2 = GL2ES2.GL_FLOAT_VEC2;
FLOAT_VEC3 = GL2ES2.GL_FLOAT_VEC3;
FLOAT_VEC4 = GL2ES2.GL_FLOAT_VEC4;
FLOAT_MAT2 = GL2ES2.GL_FLOAT_MAT2;
FLOAT_MAT3 = GL2ES2.GL_FLOAT_MAT3;
FLOAT_MAT4 = GL2ES2.GL_FLOAT_MAT4;
INT_VEC2 = GL2ES2.GL_INT_VEC2;
INT_VEC3 = GL2ES2.GL_INT_VEC3;
INT_VEC4 = GL2ES2.GL_INT_VEC4;
BOOL_VEC2 = GL2ES2.GL_BOOL_VEC2;
BOOL_VEC3 = GL2ES2.GL_BOOL_VEC3;
BOOL_VEC4 = GL2ES2.GL_BOOL_VEC4;
SAMPLER_2D = GL2ES2.GL_SAMPLER_2D;
SAMPLER_CUBE = GL2ES2.GL_SAMPLER_CUBE;
LOW_FLOAT = GL2ES2.GL_LOW_FLOAT;
MEDIUM_FLOAT = GL2ES2.GL_MEDIUM_FLOAT;
HIGH_FLOAT = GL2ES2.GL_HIGH_FLOAT;
LOW_INT = GL2ES2.GL_LOW_INT;
MEDIUM_INT = GL2ES2.GL_MEDIUM_INT;
HIGH_INT = GL2ES2.GL_HIGH_INT;
CURRENT_VERTEX_ATTRIB = GL2ES2.GL_CURRENT_VERTEX_ATTRIB;
VERTEX_ATTRIB_ARRAY_BUFFER_BINDING = GL2ES2.GL_VERTEX_ATTRIB_ARRAY_BUFFER_BINDING;
VERTEX_ATTRIB_ARRAY_ENABLED = GL2ES2.GL_VERTEX_ATTRIB_ARRAY_ENABLED;
VERTEX_ATTRIB_ARRAY_SIZE = GL2ES2.GL_VERTEX_ATTRIB_ARRAY_SIZE;
VERTEX_ATTRIB_ARRAY_STRIDE = GL2ES2.GL_VERTEX_ATTRIB_ARRAY_STRIDE;
VERTEX_ATTRIB_ARRAY_TYPE = GL2ES2.GL_VERTEX_ATTRIB_ARRAY_TYPE;
VERTEX_ATTRIB_ARRAY_NORMALIZED = GL2ES2.GL_VERTEX_ATTRIB_ARRAY_NORMALIZED;
VERTEX_ATTRIB_ARRAY_POINTER = GL2ES2.GL_VERTEX_ATTRIB_ARRAY_POINTER;
BLEND = GL.GL_BLEND;
ONE = GL.GL_ONE;
ZERO = GL.GL_ZERO;
SRC_ALPHA = GL.GL_SRC_ALPHA;
DST_ALPHA = GL.GL_DST_ALPHA;
ONE_MINUS_SRC_ALPHA = GL.GL_ONE_MINUS_SRC_ALPHA;
ONE_MINUS_DST_COLOR = GL.GL_ONE_MINUS_DST_COLOR;
ONE_MINUS_SRC_COLOR = GL.GL_ONE_MINUS_SRC_COLOR;
DST_COLOR = GL.GL_DST_COLOR;
SRC_COLOR = GL.GL_SRC_COLOR;
SAMPLE_ALPHA_TO_COVERAGE = GL.GL_SAMPLE_ALPHA_TO_COVERAGE;
SAMPLE_COVERAGE = GL.GL_SAMPLE_COVERAGE;
KEEP = GL.GL_KEEP;
REPLACE = GL.GL_REPLACE;
INCR = GL.GL_INCR;
DECR = GL.GL_DECR;
INVERT = GL.GL_INVERT;
INCR_WRAP = GL.GL_INCR_WRAP;
DECR_WRAP = GL.GL_DECR_WRAP;
NEVER = GL.GL_NEVER;
ALWAYS = GL.GL_ALWAYS;
EQUAL = GL.GL_EQUAL;
LESS = GL.GL_LESS;
LEQUAL = GL.GL_LEQUAL;
GREATER = GL.GL_GREATER;
GEQUAL = GL.GL_GEQUAL;
NOTEQUAL = GL.GL_NOTEQUAL;
FUNC_ADD = GL.GL_FUNC_ADD;
FUNC_MIN = GL2ES3.GL_MIN;
FUNC_MAX = GL2ES3.GL_MAX;
FUNC_REVERSE_SUBTRACT = GL.GL_FUNC_REVERSE_SUBTRACT;
FUNC_SUBTRACT = GL.GL_FUNC_SUBTRACT;
DITHER = GL.GL_DITHER;
CONSTANT_COLOR = GL2ES2.GL_CONSTANT_COLOR;
CONSTANT_ALPHA = GL2ES2.GL_CONSTANT_ALPHA;
ONE_MINUS_CONSTANT_COLOR = GL2ES2.GL_ONE_MINUS_CONSTANT_COLOR;
ONE_MINUS_CONSTANT_ALPHA = GL2ES2.GL_ONE_MINUS_CONSTANT_ALPHA;
SRC_ALPHA_SATURATE = GL.GL_SRC_ALPHA_SATURATE;
SCISSOR_TEST = GL.GL_SCISSOR_TEST;
STENCIL_TEST = GL.GL_STENCIL_TEST;
DEPTH_TEST = GL.GL_DEPTH_TEST;
DEPTH_WRITEMASK = GL.GL_DEPTH_WRITEMASK;
COLOR_BUFFER_BIT = GL.GL_COLOR_BUFFER_BIT;
DEPTH_BUFFER_BIT = GL.GL_DEPTH_BUFFER_BIT;
STENCIL_BUFFER_BIT = GL.GL_STENCIL_BUFFER_BIT;
FRAMEBUFFER = GL.GL_FRAMEBUFFER;
COLOR_ATTACHMENT0 = GL.GL_COLOR_ATTACHMENT0;
COLOR_ATTACHMENT1 = GL2ES2.GL_COLOR_ATTACHMENT1;
COLOR_ATTACHMENT2 = GL2ES2.GL_COLOR_ATTACHMENT2;
COLOR_ATTACHMENT3 = GL2ES2.GL_COLOR_ATTACHMENT3;
RENDERBUFFER = GL.GL_RENDERBUFFER;
DEPTH_ATTACHMENT = GL.GL_DEPTH_ATTACHMENT;
STENCIL_ATTACHMENT = GL.GL_STENCIL_ATTACHMENT;
READ_FRAMEBUFFER = GL.GL_READ_FRAMEBUFFER;
DRAW_FRAMEBUFFER = GL.GL_DRAW_FRAMEBUFFER;
RGBA8 = GL.GL_RGBA8;
DEPTH24_STENCIL8 = GL.GL_DEPTH24_STENCIL8;
DEPTH_COMPONENT = GL2ES2.GL_DEPTH_COMPONENT;
DEPTH_COMPONENT16 = GL.GL_DEPTH_COMPONENT16;
DEPTH_COMPONENT24 = GL.GL_DEPTH_COMPONENT24;