Ejemplo n.º 1
0
 private void ensureCapacity(IntBuffer buffer) {
   if (buffer.remaining() > intBuffer.length()) {
     intBuffer = TypedArrays.createInt32Array(buffer.remaining());
   }
 }
Ejemplo n.º 2
0
public class GwtGL20 implements GL20 {
  final Map<Integer, WebGLProgram> programs = new HashMap<Integer, WebGLProgram>();
  int nextProgramId = 1;
  final Map<Integer, WebGLShader> shaders = new HashMap<Integer, WebGLShader>();
  int nextShaderId = 1;
  final Map<Integer, WebGLBuffer> buffers = new HashMap<Integer, WebGLBuffer>();
  int nextBufferId = 1;
  final Map<Integer, WebGLFramebuffer> frameBuffers = new HashMap<Integer, WebGLFramebuffer>();
  int nextFrameBufferId = 1;
  final Map<Integer, WebGLRenderbuffer> renderBuffers = new HashMap<Integer, WebGLRenderbuffer>();
  int nextRenderBufferId = 1;
  final Map<Integer, WebGLTexture> textures = new HashMap<Integer, WebGLTexture>();
  int nextTextureId = 1;
  final Map<Integer, Map<Integer, WebGLUniformLocation>> uniforms =
      new HashMap<Integer, Map<Integer, WebGLUniformLocation>>();
  int nextUniformId = 1;
  int currProgram = 0;

  Float32Array floatBuffer = TypedArrays.createFloat32Array(2000 * 20);
  Int32Array intBuffer = TypedArrays.createInt32Array(2000 * 6);
  Int16Array shortBuffer = TypedArrays.createInt16Array(2000 * 6);
  float[] floatArray = new float[16000];

  final WebGLRenderingContext gl;

  protected GwtGL20(WebGLRenderingContext gl) {
    ;
    this.gl = gl;
    this.gl.pixelStorei(WebGLRenderingContext.UNPACK_PREMULTIPLY_ALPHA_WEBGL, 0);
  }

  private void ensureCapacity(FloatBuffer buffer) {
    if (buffer.remaining() > floatBuffer.length()) {
      floatBuffer = TypedArrays.createFloat32Array(buffer.remaining());
    }
  }

  private void ensureCapacity(ShortBuffer buffer) {
    if (buffer.remaining() > shortBuffer.length()) {
      shortBuffer = TypedArrays.createInt16Array(buffer.remaining());
    }
  }

  private void ensureCapacity(IntBuffer buffer) {
    if (buffer.remaining() > intBuffer.length()) {
      intBuffer = TypedArrays.createInt32Array(buffer.remaining());
    }
  }

  public Float32Array copy(FloatBuffer buffer) {
    if (GWT.isProdMode()) {
      return ((Float32Array) ((HasArrayBufferView) buffer).getTypedArray())
          .subarray(buffer.position(), buffer.remaining());
    } else {
      ensureCapacity(buffer);
      for (int i = buffer.position(), j = 0; i < buffer.limit(); i++, j++) {
        floatBuffer.set(j, buffer.get(i));
      }
      return floatBuffer.subarray(0, buffer.remaining());
    }
  }

  public Int16Array copy(ShortBuffer buffer) {
    if (GWT.isProdMode()) {
      return ((Int16Array) ((HasArrayBufferView) buffer).getTypedArray())
          .subarray(buffer.position(), buffer.remaining());
    } else {
      ensureCapacity(buffer);
      for (int i = buffer.position(), j = 0; i < buffer.limit(); i++, j++) {
        shortBuffer.set(j, buffer.get(i));
      }
      return shortBuffer.subarray(0, buffer.remaining());
    }
  }

  public Int32Array copy(IntBuffer buffer) {
    if (GWT.isProdMode()) {
      return ((Int32Array) ((HasArrayBufferView) buffer).getTypedArray())
          .subarray(buffer.position(), buffer.remaining());
    } else {
      ensureCapacity(buffer);
      for (int i = buffer.position(), j = 0; i < buffer.limit(); i++, j++) {
        intBuffer.set(j, buffer.get(i));
      }
      return intBuffer.subarray(0, buffer.remaining());
    }
  }

  private int allocateUniformLocationId(int program, WebGLUniformLocation location) {
    Map<Integer, WebGLUniformLocation> progUniforms = uniforms.get(program);
    if (progUniforms == null) {
      progUniforms = new HashMap<Integer, WebGLUniformLocation>();
      uniforms.put(program, progUniforms);
    }
    // FIXME check if uniform already stored.
    int id = nextUniformId++;
    progUniforms.put(id, location);
    return id;
  }

  private WebGLUniformLocation getUniformLocation(int location) {
    return uniforms.get(currProgram).get(location);
  }

  private int allocateShaderId(WebGLShader shader) {
    int id = nextShaderId++;
    shaders.put(id, shader);
    return id;
  }

  private void deallocateShaderId(int id) {
    shaders.remove(id);
  }

  private int allocateProgramId(WebGLProgram program) {
    int id = nextProgramId++;
    programs.put(id, program);
    return id;
  }

  private void deallocateProgramId(int id) {
    uniforms.remove(id);
    programs.remove(id);
  }

  private int allocateBufferId(WebGLBuffer buffer) {
    int id = nextBufferId++;
    buffers.put(id, buffer);
    return id;
  }

  private void deallocateBufferId(int id) {
    buffers.remove(id);
  }

  private int allocateFrameBufferId(WebGLFramebuffer frameBuffer) {
    int id = nextBufferId++;
    frameBuffers.put(id, frameBuffer);
    return id;
  }

  private void deallocateFrameBufferId(int id) {
    frameBuffers.remove(id);
  }

  private int allocateRenderBufferId(WebGLRenderbuffer renderBuffer) {
    int id = nextRenderBufferId++;
    renderBuffers.put(id, renderBuffer);
    return id;
  }

  private void deallocateRenderBufferId(int id) {
    renderBuffers.remove(id);
  }

  private int allocateTextureId(WebGLTexture texture) {
    int id = nextTextureId++;
    textures.put(id, texture);
    return id;
  }

  private void deallocateTextureId(int id) {
    textures.remove(id);
  }

  @Override
  public void glActiveTexture(int texture) {
    gl.activeTexture(texture);
  }

  @Override
  public void glBindTexture(int target, int texture) {
    gl.bindTexture(target, textures.get(texture));
  }

  @Override
  public void glBlendFunc(int sfactor, int dfactor) {
    gl.blendFunc(sfactor, dfactor);
  }

  @Override
  public void glClear(int mask) {
    gl.clear(mask);
  }

  @Override
  public void glClearColor(float red, float green, float blue, float alpha) {
    gl.clearColor(red, green, blue, alpha);
  }

  @Override
  public void glClearDepthf(float depth) {
    gl.clearDepth(depth);
  }

  @Override
  public void glClearStencil(int s) {
    gl.clearStencil(s);
  }

  @Override
  public void glColorMask(boolean red, boolean green, boolean blue, boolean alpha) {
    gl.colorMask(red, green, blue, alpha);
  }

  @Override
  public void glCompressedTexImage2D(
      int target,
      int level,
      int internalformat,
      int width,
      int height,
      int border,
      int imageSize,
      Buffer data) {
    throw new GdxRuntimeException("compressed textures not supported by GWT WebGL backend");
  }

  @Override
  public void glCompressedTexSubImage2D(
      int target,
      int level,
      int xoffset,
      int yoffset,
      int width,
      int height,
      int format,
      int imageSize,
      Buffer data) {
    throw new GdxRuntimeException("compressed textures not supported by GWT WebGL backend");
  }

  @Override
  public void glCopyTexImage2D(
      int target, int level, int internalformat, int x, int y, int width, int height, int border) {
    gl.copyTexImage2D(target, level, internalformat, x, y, width, height, border);
  }

  @Override
  public void glCopyTexSubImage2D(
      int target, int level, int xoffset, int yoffset, int x, int y, int width, int height) {
    gl.copyTexSubImage2D(target, level, xoffset, yoffset, x, y, width, height);
  }

  @Override
  public void glCullFace(int mode) {
    gl.cullFace(mode);
  }

  @Override
  public void glDeleteTextures(int n, IntBuffer textures) {
    for (int i = 0; i < n; i++) {
      int id = textures.get();
      WebGLTexture texture = this.textures.get(id);
      deallocateTextureId(id);
      gl.deleteTexture(texture);
    }
  }

  @Override
  public void glDepthFunc(int func) {
    gl.depthFunc(func);
  }

  @Override
  public void glDepthMask(boolean flag) {
    gl.depthMask(flag);
  }

  @Override
  public void glDepthRangef(float zNear, float zFar) {
    gl.depthRange(zNear, zFar);
  }

  @Override
  public void glDisable(int cap) {
    gl.disable(cap);
  }

  @Override
  public void glDrawArrays(int mode, int first, int count) {
    gl.drawArrays(mode, first, count);
  }

  @Override
  public void glDrawElements(int mode, int count, int type, Buffer indices) {
    gl.drawElements(
        mode,
        count,
        type,
        indices.position()); // FIXME this is assuming WebGL supports client side buffers...
  }

  @Override
  public void glEnable(int cap) {
    gl.enable(cap);
  }

  @Override
  public void glFinish() {
    gl.finish();
  }

  @Override
  public void glFlush() {
    gl.flush();
  }

  @Override
  public void glFrontFace(int mode) {
    gl.frontFace(mode);
  }

  @Override
  public void glGenTextures(int n, IntBuffer textures) {
    WebGLTexture texture = gl.createTexture();
    int id = allocateTextureId(texture);
    textures.put(id);
  }

  @Override
  public int glGetError() {
    return gl.getError();
  }

  @Override
  public void glGetIntegerv(int pname, IntBuffer params) {
    // FIXME this is a hack, a nasty nasty hack
    if (pname == GL10.GL_MAX_TEXTURE_UNITS || pname == GL20.GL_MAX_TEXTURE_IMAGE_UNITS) {
      params.put(16);
      return;
    }
    throw new GdxRuntimeException("glGetInteger not supported by GWT WebGL backend");
  }

  @Override
  public String glGetString(int name) {
    // FIXME
    throw new GdxRuntimeException("not implemented");
  }

  @Override
  public void glHint(int target, int mode) {
    gl.hint(target, mode);
  }

  @Override
  public void glLineWidth(float width) {
    gl.lineWidth(width);
  }

  @Override
  public void glPixelStorei(int pname, int param) {
    gl.pixelStorei(pname, param);
  }

  @Override
  public void glPolygonOffset(float factor, float units) {
    gl.polygonOffset(factor, units);
  }

  @Override
  public void glReadPixels(
      int x, int y, int width, int height, int format, int type, Buffer pixels) {
    // verify request
    if ((format != WebGLRenderingContext.RGBA) || (type != WebGLRenderingContext.UNSIGNED_BYTE)) {
      throw new GdxRuntimeException(
          "Only format RGBA and type UNSIGNED_BYTE are currently supported for glReadPixels(...).");
    }
    if (!(pixels instanceof ByteBuffer)) {
      throw new GdxRuntimeException(
          "Inputed pixels buffer needs to be of type ByteBuffer for glReadPixels(...).");
    }

    // create new ArrayBufferView (4 bytes per pixel)
    int size = 4 * width * height;
    Uint8Array buffer = Uint8ArrayNative.create(size);

    // read bytes to ArrayBufferView
    gl.readPixels(x, y, width, height, format, type, buffer);

    // copy ArrayBufferView to our pixels array
    ByteBuffer pixelsByte = (ByteBuffer) pixels;
    for (int i = 0; i < size; i++) {
      pixelsByte.put((byte) (buffer.get(i) & 0x000000ff));
    }
  }

  @Override
  public void glScissor(int x, int y, int width, int height) {
    gl.scissor(x, y, width, height);
  }

  @Override
  public void glStencilFunc(int func, int ref, int mask) {
    gl.stencilFunc(func, ref, mask);
  }

  @Override
  public void glStencilMask(int mask) {
    gl.stencilMask(mask);
  }

  @Override
  public void glStencilOp(int fail, int zfail, int zpass) {
    gl.stencilOp(fail, zfail, zpass);
  }

  @Override
  public void glTexImage2D(
      int target,
      int level,
      int internalformat,
      int width,
      int height,
      int border,
      int format,
      int type,
      Buffer pixels) {
    Pixmap pixmap = Pixmap.pixmaps.get(((IntBuffer) pixels).get(0));
    gl.texImage2D(target, level, internalformat, format, type, pixmap.getCanvasElement());
  }

  @Override
  public void glTexParameterf(int target, int pname, float param) {
    gl.texParameterf(target, pname, param);
  }

  @Override
  public void glTexSubImage2D(
      int target,
      int level,
      int xoffset,
      int yoffset,
      int width,
      int height,
      int format,
      int type,
      Buffer pixels) {
    Pixmap pixmap = Pixmap.pixmaps.get(((IntBuffer) pixels).get(0));
    gl.texSubImage2D(target, level, xoffset, yoffset, width, height, pixmap.getCanvasElement());
  }

  @Override
  public void glViewport(int x, int y, int width, int height) {
    gl.viewport(x, y, width, height);
  }

  @Override
  public void glAttachShader(int program, int shader) {
    WebGLProgram glProgram = programs.get(program);
    WebGLShader glShader = shaders.get(shader);
    gl.attachShader(glProgram, glShader);
  }

  @Override
  public void glBindAttribLocation(int program, int index, String name) {
    WebGLProgram glProgram = programs.get(program);
    gl.bindAttribLocation(glProgram, index, name);
  }

  @Override
  public void glBindBuffer(int target, int buffer) {
    gl.bindBuffer(target, buffers.get(buffer));
  }

  @Override
  public void glBindFramebuffer(int target, int framebuffer) {
    gl.bindFramebuffer(target, frameBuffers.get(framebuffer));
  }

  @Override
  public void glBindRenderbuffer(int target, int renderbuffer) {
    gl.bindRenderbuffer(target, renderBuffers.get(renderbuffer));
  }

  @Override
  public void glBlendColor(float red, float green, float blue, float alpha) {
    gl.blendColor(red, green, blue, alpha);
  }

  @Override
  public void glBlendEquation(int mode) {
    gl.blendEquation(mode);
  }

  @Override
  public void glBlendEquationSeparate(int modeRGB, int modeAlpha) {
    gl.blendEquationSeparate(modeRGB, modeAlpha);
  }

  @Override
  public void glBlendFuncSeparate(int srcRGB, int dstRGB, int srcAlpha, int dstAlpha) {
    gl.blendFuncSeparate(srcRGB, dstRGB, srcAlpha, dstAlpha);
  }

  @Override
  public void glBufferData(int target, int size, Buffer data, int usage) {
    if (data instanceof FloatBuffer) {
      gl.bufferData(target, copy((FloatBuffer) data), usage);
    } else if (data instanceof ShortBuffer) {
      gl.bufferData(target, copy((ShortBuffer) data), usage);
    } else {
      throw new GdxRuntimeException("Can only cope with FloatBuffer and ShortBuffer at the moment");
    }
  }

  @Override
  public void glBufferSubData(int target, int offset, int size, Buffer data) {
    if (data instanceof FloatBuffer) {
      gl.bufferSubData(target, offset, copy((FloatBuffer) data));
    } else if (data instanceof ShortBuffer) {
      gl.bufferSubData(target, offset, copy((ShortBuffer) data));
    } else {
      throw new GdxRuntimeException("Can only cope with FloatBuffer and ShortBuffer at the moment");
    }
  }

  @Override
  public int glCheckFramebufferStatus(int target) {
    return gl.checkFramebufferStatus(target);
  }

  @Override
  public void glCompileShader(int shader) {
    WebGLShader glShader = shaders.get(shader);
    gl.compileShader(glShader);
  }

  @Override
  public int glCreateProgram() {
    WebGLProgram program = gl.createProgram();
    return allocateProgramId(program);
  }

  @Override
  public int glCreateShader(int type) {
    WebGLShader shader = gl.createShader(type);
    return allocateShaderId(shader);
  }

  @Override
  public void glDeleteBuffers(int n, IntBuffer buffers) {
    for (int i = 0; i < n; i++) {
      int id = buffers.get();
      WebGLBuffer buffer = this.buffers.get(id);
      deallocateBufferId(id);
      gl.deleteBuffer(buffer);
    }
  }

  @Override
  public void glDeleteFramebuffers(int n, IntBuffer framebuffers) {
    for (int i = 0; i < n; i++) {
      int id = framebuffers.get();
      WebGLFramebuffer fb = this.frameBuffers.get(id);
      deallocateFrameBufferId(id);
      gl.deleteFramebuffer(fb);
    }
  }

  @Override
  public void glDeleteProgram(int program) {
    WebGLProgram prog = programs.get(program);
    deallocateProgramId(program);
    gl.deleteProgram(prog);
  }

  @Override
  public void glDeleteRenderbuffers(int n, IntBuffer renderbuffers) {
    for (int i = 0; i < n; i++) {
      int id = renderbuffers.get();
      WebGLRenderbuffer rb = this.renderBuffers.get(id);
      deallocateRenderBufferId(id);
      gl.deleteRenderbuffer(rb);
    }
  }

  @Override
  public void glDeleteShader(int shader) {
    WebGLShader sh = shaders.get(shader);
    deallocateShaderId(shader);
    gl.deleteShader(sh);
  }

  @Override
  public void glDetachShader(int program, int shader) {
    gl.detachShader(programs.get(program), shaders.get(shader));
  }

  @Override
  public void glDisableVertexAttribArray(int index) {
    gl.disableVertexAttribArray(index);
  }

  @Override
  public void glDrawElements(int mode, int count, int type, int indices) {
    gl.drawElements(mode, count, type, indices);
  }

  @Override
  public void glEnableVertexAttribArray(int index) {
    gl.enableVertexAttribArray(index);
  }

  @Override
  public void glFramebufferRenderbuffer(
      int target, int attachment, int renderbuffertarget, int renderbuffer) {
    gl.framebufferRenderbuffer(
        target, attachment, renderbuffertarget, renderBuffers.get(renderbuffer));
  }

  @Override
  public void glFramebufferTexture2D(
      int target, int attachment, int textarget, int texture, int level) {
    gl.framebufferTexture2D(target, attachment, textarget, textures.get(texture), level);
  }

  @Override
  public void glGenBuffers(int n, IntBuffer buffers) {
    for (int i = 0; i < n; i++) {
      WebGLBuffer buffer = gl.createBuffer();
      int id = allocateBufferId(buffer);
      buffers.put(id);
    }
  }

  @Override
  public void glGenerateMipmap(int target) {
    gl.generateMipmap(target);
  }

  @Override
  public void glGenFramebuffers(int n, IntBuffer framebuffers) {
    for (int i = 0; i < n; i++) {
      WebGLFramebuffer fb = gl.createFramebuffer();
      int id = allocateFrameBufferId(fb);
      framebuffers.put(id);
    }
  }

  @Override
  public void glGenRenderbuffers(int n, IntBuffer renderbuffers) {
    for (int i = 0; i < n; i++) {
      WebGLRenderbuffer rb = gl.createRenderbuffer();
      int id = allocateRenderBufferId(rb);
      renderbuffers.put(id);
    }
  }

  @Override
  public String glGetActiveAttrib(int program, int index, IntBuffer size, Buffer type) {
    WebGLActiveInfo activeAttrib = gl.getActiveAttrib(programs.get(program), index);
    size.put(activeAttrib.getSize());
    ((IntBuffer) type).put(activeAttrib.getType());
    return activeAttrib.getName();
  }

  @Override
  public String glGetActiveUniform(int program, int index, IntBuffer size, Buffer type) {
    WebGLActiveInfo activeUniform = gl.getActiveUniform(programs.get(program), index);
    size.put(activeUniform.getSize());
    ((IntBuffer) type).put(activeUniform.getType());
    return activeUniform.getName();
  }

  @Override
  public void glGetAttachedShaders(int program, int maxcount, Buffer count, IntBuffer shaders) {
    // FIXME
    throw new GdxRuntimeException("not implemented");
  }

  @Override
  public int glGetAttribLocation(int program, String name) {
    WebGLProgram prog = programs.get(program);
    return gl.getAttribLocation(prog, name);
  }

  @Override
  public void glGetBooleanv(int pname, Buffer params) {
    throw new GdxRuntimeException("glGetBoolean not supported by GWT WebGL backend");
  }

  @Override
  public void glGetBufferParameteriv(int target, int pname, IntBuffer params) {
    // FIXME
    throw new GdxRuntimeException("not implemented");
  }

  @Override
  public void glGetFloatv(int pname, FloatBuffer params) {
    throw new GdxRuntimeException("glGetFloat not supported by GWT WebGL backend");
  }

  @Override
  public void glGetFramebufferAttachmentParameteriv(
      int target, int attachment, int pname, IntBuffer params) {
    // FIXME
    throw new GdxRuntimeException("not implemented");
  }

  @Override
  public void glGetProgramiv(int program, int pname, IntBuffer params) {
    if (pname == GL20.GL_DELETE_STATUS
        || pname == GL20.GL_LINK_STATUS
        || pname == GL20.GL_VALIDATE_STATUS) {
      boolean result = gl.getProgramParameterb(programs.get(program), pname);
      params.put(result ? GL20.GL_TRUE : GL20.GL_FALSE);
    } else {
      params.put(gl.getProgramParameteri(programs.get(program), pname));
    }
  }

  @Override
  public String glGetProgramInfoLog(int program) {
    return gl.getProgramInfoLog(programs.get(program));
  }

  @Override
  public void glGetRenderbufferParameteriv(int target, int pname, IntBuffer params) {
    // FIXME
    throw new GdxRuntimeException("not implemented");
  }

  @Override
  public void glGetShaderiv(int shader, int pname, IntBuffer params) {
    if (pname == GL20.GL_COMPILE_STATUS || pname == GL20.GL_DELETE_STATUS) {
      boolean result = gl.getShaderParameterb(shaders.get(shader), pname);
      params.put(result ? GL20.GL_TRUE : GL20.GL_FALSE);
    } else {
      int result = gl.getShaderParameteri(shaders.get(shader), pname);
      params.put(result);
    }
  }

  @Override
  public String glGetShaderInfoLog(int shader) {
    return gl.getShaderInfoLog(shaders.get(shader));
  }

  @Override
  public void glGetShaderPrecisionFormat(
      int shadertype, int precisiontype, IntBuffer range, IntBuffer precision) {
    throw new GdxRuntimeException("glGetShaderPrecisionFormat not supported by GWT WebGL backend");
  }

  @Override
  public void glGetShaderSource(int shader, int bufsize, Buffer length, String source) {
    throw new GdxRuntimeException("glGetShaderSource not supported by GWT WebGL backend");
  }

  @Override
  public void glGetTexParameterfv(int target, int pname, FloatBuffer params) {
    throw new GdxRuntimeException("glGetTexParameter not supported by GWT WebGL backend");
  }

  @Override
  public void glGetTexParameteriv(int target, int pname, IntBuffer params) {
    throw new GdxRuntimeException("glGetTexParameter not supported by GWT WebGL backend");
  }

  @Override
  public void glGetUniformfv(int program, int location, FloatBuffer params) {
    // FIXME
    throw new GdxRuntimeException("not implemented");
  }

  @Override
  public void glGetUniformiv(int program, int location, IntBuffer params) {
    // FIXME
    throw new GdxRuntimeException("not implemented");
  }

  @Override
  public int glGetUniformLocation(int program, String name) {
    WebGLUniformLocation location = gl.getUniformLocation(programs.get(program), name);
    return allocateUniformLocationId(program, location);
  }

  @Override
  public void glGetVertexAttribfv(int index, int pname, FloatBuffer params) {
    // FIXME
    throw new GdxRuntimeException("not implemented");
  }

  @Override
  public void glGetVertexAttribiv(int index, int pname, IntBuffer params) {
    // FIXME
    throw new GdxRuntimeException("not implemented");
  }

  @Override
  public void glGetVertexAttribPointerv(int index, int pname, Buffer pointer) {
    throw new GdxRuntimeException("glGetVertexAttribPointer not supported by GWT WebGL backend");
  }

  @Override
  public boolean glIsBuffer(int buffer) {
    return gl.isBuffer(buffers.get(buffer));
  }

  @Override
  public boolean glIsEnabled(int cap) {
    return gl.isEnabled(cap);
  }

  @Override
  public boolean glIsFramebuffer(int framebuffer) {
    return gl.isFramebuffer(frameBuffers.get(framebuffer));
  }

  @Override
  public boolean glIsProgram(int program) {
    return gl.isProgram(programs.get(program));
  }

  @Override
  public boolean glIsRenderbuffer(int renderbuffer) {
    return gl.isRenderbuffer(renderBuffers.get(renderbuffer));
  }

  @Override
  public boolean glIsShader(int shader) {
    return gl.isShader(shaders.get(shader));
  }

  @Override
  public boolean glIsTexture(int texture) {
    return gl.isTexture(textures.get(texture));
  }

  @Override
  public void glLinkProgram(int program) {
    gl.linkProgram(programs.get(program));
  }

  @Override
  public void glReleaseShaderCompiler() {
    throw new GdxRuntimeException("not implemented");
  }

  @Override
  public void glRenderbufferStorage(int target, int internalformat, int width, int height) {
    gl.renderbufferStorage(target, internalformat, width, height);
  }

  @Override
  public void glSampleCoverage(float value, boolean invert) {
    gl.sampleCoverage(value, invert);
  }

  @Override
  public void glShaderBinary(
      int n, IntBuffer shaders, int binaryformat, Buffer binary, int length) {
    throw new GdxRuntimeException("glShaderBinary not supported by GWT WebGL backend");
  }

  @Override
  public void glShaderSource(int shader, String source) {
    gl.shaderSource(shaders.get(shader), source);
  }

  @Override
  public void glStencilFuncSeparate(int face, int func, int ref, int mask) {
    gl.stencilFuncSeparate(face, func, ref, mask);
  }

  @Override
  public void glStencilMaskSeparate(int face, int mask) {
    gl.stencilMaskSeparate(face, mask);
  }

  @Override
  public void glStencilOpSeparate(int face, int fail, int zfail, int zpass) {
    gl.stencilOpSeparate(face, fail, zfail, zpass);
  }

  @Override
  public void glTexParameterfv(int target, int pname, FloatBuffer params) {
    gl.texParameterf(target, pname, params.get());
  }

  @Override
  public void glTexParameteri(int target, int pname, int param) {
    gl.texParameterf(target, pname, param);
  }

  @Override
  public void glTexParameteriv(int target, int pname, IntBuffer params) {
    gl.texParameterf(target, pname, params.get());
  }

  @Override
  public void glUniform1f(int location, float x) {
    WebGLUniformLocation loc = getUniformLocation(location);
    gl.uniform1f(loc, x);
  }

  @Override
  public void glUniform1fv(int location, int count, FloatBuffer v) {
    WebGLUniformLocation loc = getUniformLocation(location);
    gl.uniform1fv(loc, copy(v));
  }

  @Override
  public void glUniform1i(int location, int x) {
    WebGLUniformLocation loc = getUniformLocation(location);
    gl.uniform1i(loc, x);
  }

  @Override
  public void glUniform1iv(int location, int count, IntBuffer v) {
    WebGLUniformLocation loc = getUniformLocation(location);
    gl.uniform1iv(loc, copy(v));
  }

  @Override
  public void glUniform2f(int location, float x, float y) {
    WebGLUniformLocation loc = getUniformLocation(location);
    gl.uniform2f(loc, x, y);
  }

  @Override
  public void glUniform2fv(int location, int count, FloatBuffer v) {
    WebGLUniformLocation loc = getUniformLocation(location);
    gl.uniform2fv(loc, copy(v));
  }

  @Override
  public void glUniform2i(int location, int x, int y) {
    WebGLUniformLocation loc = getUniformLocation(location);
    gl.uniform2i(loc, x, y);
  }

  @Override
  public void glUniform2iv(int location, int count, IntBuffer v) {
    WebGLUniformLocation loc = getUniformLocation(location);
    gl.uniform2iv(loc, copy(v));
  }

  @Override
  public void glUniform3f(int location, float x, float y, float z) {
    WebGLUniformLocation loc = getUniformLocation(location);
    gl.uniform3f(loc, x, y, z);
  }

  @Override
  public void glUniform3fv(int location, int count, FloatBuffer v) {
    WebGLUniformLocation loc = getUniformLocation(location);
    gl.uniform3fv(loc, copy(v));
  }

  @Override
  public void glUniform3i(int location, int x, int y, int z) {
    WebGLUniformLocation loc = getUniformLocation(location);
    gl.uniform3i(loc, x, y, z);
  }

  @Override
  public void glUniform3iv(int location, int count, IntBuffer v) {
    WebGLUniformLocation loc = getUniformLocation(location);
    gl.uniform3iv(loc, copy(v));
  }

  @Override
  public void glUniform4f(int location, float x, float y, float z, float w) {
    WebGLUniformLocation loc = getUniformLocation(location);
    gl.uniform4f(loc, x, y, z, w);
  }

  @Override
  public void glUniform4fv(int location, int count, FloatBuffer v) {
    WebGLUniformLocation loc = getUniformLocation(location);
    gl.uniform4fv(loc, copy(v));
  }

  @Override
  public void glUniform4i(int location, int x, int y, int z, int w) {
    WebGLUniformLocation loc = getUniformLocation(location);
    gl.uniform4i(loc, x, y, z, w);
  }

  @Override
  public void glUniform4iv(int location, int count, IntBuffer v) {
    WebGLUniformLocation loc = getUniformLocation(location);
    gl.uniform4iv(loc, copy(v));
  }

  @Override
  public void glUniformMatrix2fv(int location, int count, boolean transpose, FloatBuffer value) {
    WebGLUniformLocation loc = getUniformLocation(location);
    gl.uniformMatrix2fv(loc, transpose, copy(value));
  }

  @Override
  public void glUniformMatrix3fv(int location, int count, boolean transpose, FloatBuffer value) {
    WebGLUniformLocation loc = getUniformLocation(location);
    gl.uniformMatrix3fv(loc, transpose, copy(value));
  }

  @Override
  public void glUniformMatrix4fv(int location, int count, boolean transpose, FloatBuffer value) {
    WebGLUniformLocation loc = getUniformLocation(location);
    gl.uniformMatrix4fv(loc, transpose, copy(value));
  }

  @Override
  public void glUseProgram(int program) {
    currProgram = program;
    gl.useProgram(programs.get(program));
  }

  @Override
  public void glValidateProgram(int program) {
    gl.validateProgram(programs.get(program));
  }

  @Override
  public void glVertexAttrib1f(int indx, float x) {
    gl.vertexAttrib1f(indx, x);
  }

  @Override
  public void glVertexAttrib1fv(int indx, FloatBuffer values) {
    gl.vertexAttrib1fv(indx, copy(values));
  }

  @Override
  public void glVertexAttrib2f(int indx, float x, float y) {
    gl.vertexAttrib2f(indx, x, y);
  }

  @Override
  public void glVertexAttrib2fv(int indx, FloatBuffer values) {
    gl.vertexAttrib2fv(indx, copy(values));
  }

  @Override
  public void glVertexAttrib3f(int indx, float x, float y, float z) {
    gl.vertexAttrib3f(indx, x, y, z);
  }

  @Override
  public void glVertexAttrib3fv(int indx, FloatBuffer values) {
    gl.vertexAttrib3fv(indx, copy(values));
  }

  @Override
  public void glVertexAttrib4f(int indx, float x, float y, float z, float w) {
    gl.vertexAttrib4f(indx, x, y, z, w);
  }

  @Override
  public void glVertexAttrib4fv(int indx, FloatBuffer values) {
    gl.vertexAttrib4fv(indx, copy(values));
  }

  @Override
  public void glVertexAttribPointer(
      int indx, int size, int type, boolean normalized, int stride, Buffer ptr) {
    throw new GdxRuntimeException(
        "not implemented, vertex arrays aren't support in WebGL it seems");
  }

  @Override
  public void glVertexAttribPointer(
      int indx, int size, int type, boolean normalized, int stride, int ptr) {
    gl.vertexAttribPointer(indx, size, type, normalized, stride, ptr);
  }
}