Java Code Examples for android.opengl.GLES20#glGetError()

private static int compileShader(int shaderType, String source) {
  final int shader = GLES20.glCreateShader(shaderType);
  if (shader == 0) {
    throw new RuntimeException("glCreateShader() failed. GLES20 error: " + GLES20.glGetError());
  }
  GLES20.glShaderSource(shader, source);
  GLES20.glCompileShader(shader);
  int[] compileStatus = new int[] {GLES20.GL_FALSE};
  GLES20.glGetShaderiv(shader, GLES20.GL_COMPILE_STATUS, compileStatus, 0);
  if (compileStatus[0] != GLES20.GL_TRUE) {
    Logging.e(
        TAG, "Could not compile shader " + shaderType + ":" + GLES20.glGetShaderInfoLog(shader));
    throw new RuntimeException(GLES20.glGetShaderInfoLog(shader));
  }
  GlUtil.checkNoGLES2Error("compileShader");
  return shader;
}
 

private int assembleProgram(int vertexShader, int fragmentShader, ShaderParameter[] params) {
    int program = GLES20.glCreateProgram();
    checkError();
    if (program == 0) {
        throw new RuntimeException("Cannot create GL program: " + GLES20.glGetError());
    }
    GLES20.glAttachShader(program, vertexShader);
    checkError();
    GLES20.glAttachShader(program, fragmentShader);
    checkError();
    GLES20.glLinkProgram(program);
    checkError();
    int[] mLinkStatus = mTempIntArray;
    GLES20.glGetProgramiv(program, GLES20.GL_LINK_STATUS, mLinkStatus, 0);
    if (mLinkStatus[0] != GLES20.GL_TRUE) {
        Log.e(TAG, "Could not link program: ");
        Log.e(TAG, GLES20.glGetProgramInfoLog(program));
        GLES20.glDeleteProgram(program);
        program = 0;
    }
    for (int i = 0; i < params.length; i++) {
        params[i].loadHandle(program);
    }
    return program;
}
 

private int assembleProgram(int vertexShader, int fragmentShader, ShaderParameter[] params) {
    int program = GLES20.glCreateProgram();
    checkError();
    if (program == 0) {
        throw new RuntimeException("Cannot create GL program: " + GLES20.glGetError());
    }
    GLES20.glAttachShader(program, vertexShader);
    checkError();
    GLES20.glAttachShader(program, fragmentShader);
    checkError();
    GLES20.glLinkProgram(program);
    checkError();
    int[] mLinkStatus = mTempIntArray;
    GLES20.glGetProgramiv(program, GLES20.GL_LINK_STATUS, mLinkStatus, 0);
    if (mLinkStatus[0] != GLES20.GL_TRUE) {
        Log.e(TAG, "Could not link program: ");
        Log.e(TAG, GLES20.glGetProgramInfoLog(program));
        GLES20.glDeleteProgram(program);
        program = 0;
    }
    for (int i = 0; i < params.length; i++) {
        params[i].loadHandle(program);
    }
    return program;
}
 

/**
 * GL error judgment method for debugging
 * @param glOperation Message output character string
 */
private void checkGlError(final String glOperation) {
    int error;
    while ((error = GLES20.glGetError()) != GLES20.GL_NO_ERROR) {
        mLogger.warning(glOperation + ": glError " + error);
        throw new RuntimeException(glOperation + ": glError " + error);
    }
}
 

/**
 * Checks if we've had an error inside of OpenGL ES, and if so what that error is.
 *
 * @param label Label to report in case of error.
 * @throws RuntimeException If an OpenGL error is detected.
 */
static void checkGLError(String tag, String label) {
    int error = GLES20.glGetError();
    if (error != GLES20.GL_NO_ERROR) {
        Log.e(tag, label + ": glError " + error);
        throw new RuntimeException(label + ": glError " + error);
    }
}
 

private void checkGlError(String op) {
	int error;
	if ((error = GLES20.glGetError()) != 0) {
		Log.e("DistortionRenderer", op + ": glError " + error);
		throw new RuntimeException(op + ": glError " + error);
	}
}
 

/**
 * Checks to see if a GLES error has been raised.
 */
public static void checkGlError(String op) {
    int error = GLES20.glGetError();
    if (error != GLES20.GL_NO_ERROR) {
        String msg = op + ": glError 0x" + Integer.toHexString(error);
        Log.e(TAG, msg);
        throw new RuntimeException(msg);
    }
}
 

public GlShader(String vertexSource, String fragmentSource) {
  final int vertexShader = compileShader(GLES20.GL_VERTEX_SHADER, vertexSource);
  final int fragmentShader = compileShader(GLES20.GL_FRAGMENT_SHADER, fragmentSource);
  program = GLES20.glCreateProgram();
  if (program == 0) {
    throw new RuntimeException("glCreateProgram() failed. GLES20 error: " + GLES20.glGetError());
  }
  GLES20.glAttachShader(program, vertexShader);
  GLES20.glAttachShader(program, fragmentShader);
  GLES20.glLinkProgram(program);
  int[] linkStatus = new int[] {GLES20.GL_FALSE};
  GLES20.glGetProgramiv(program, GLES20.GL_LINK_STATUS, linkStatus, 0);
  if (linkStatus[0] != GLES20.GL_TRUE) {
    Logging.e(TAG, "Could not link program: " + GLES20.glGetProgramInfoLog(program));
    throw new RuntimeException(GLES20.glGetProgramInfoLog(program));
  }
  // According to the documentation of glLinkProgram():
  // "After the link operation, applications are free to modify attached shader objects, compile
  // attached shader objects, detach shader objects, delete shader objects, and attach additional
  // shader objects. None of these operations affects the information log or the program that is
  // part of the program object."
  // But in practice, detaching shaders from the program seems to break some devices. Deleting the
  // shaders are fine however - it will delete them when they are no longer attached to a program.
  GLES20.glDeleteShader(vertexShader);
  GLES20.glDeleteShader(fragmentShader);
  GlUtil.checkNoGLES2Error("Creating GlShader");
}
 

private static void generateTextureIds(int[] textureIdHolder) {
  GLES20.glGenTextures(/* n= */ 1, textureIdHolder, /* offset= */ 0);
  int errorCode = GLES20.glGetError();
  if (errorCode != GLES20.GL_NO_ERROR) {
    throw new GlException("glGenTextures failed. Error: " + Integer.toHexString(errorCode));
  }
}
 

private static void checkError(String operation, boolean throwException) {
    int errorCount = 0;
    int error;
    String msg = null;

    while((error = GLES20.glGetError()) != GLES20.GL_NO_ERROR) {
        msg = "GL ERROR " + String.format("0x%X", error) + " @ " + operation;
        Log.e(TAG, msg);
        errorCount++;
    }

    if(throwException && errorCount > 0) {
        throw new RuntimeException(msg);
    }
}
 

public static void checkGlError(String label) {
    int error;
    while ((error = GLES20.glGetError()) != GLES20.GL_NO_ERROR) {
        Log.e(TAG, label + ": glError " + error);
        throw new RuntimeException(label + ": glError " + error);
    }
}
 

public static void checkGlError(String op) {
    int error = GLES20.glGetError();
    if (error != GLES20.GL_NO_ERROR) {
        String msg = op + ": glError 0x" + Integer.toHexString(error);
        LogUtil.logd(msg);
        throw new RuntimeException(msg);
    }
}
 

private void initFBO() {
	if(frameBuffer != null) {
		GLES20.glDeleteFramebuffers(1, frameBuffer, 0);
		frameBuffer = null;
	}
	if(texture_out != null) {
		GLES20.glDeleteTextures(1, texture_out, 0);
		texture_out = null;
	}
	if(depthRenderBuffer != null) {
		GLES20.glDeleteRenderbuffers(1, depthRenderBuffer, 0);
		depthRenderBuffer = null;
	}
	frameBuffer = new int[1];
	texture_out = new int[1];
	depthRenderBuffer = new int[1];
	GLES20.glGenFramebuffers(1, frameBuffer, 0);
	GLES20.glGenRenderbuffers(1, depthRenderBuffer, 0);
	GLES20.glGenTextures(1, texture_out, 0);
	
	GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, frameBuffer[0]);
	
	GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
	GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, texture_out[0]);
	GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, getWidth(), getHeight(), 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);
	GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE);
	GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE);
	GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);
	GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);
	GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D, texture_out[0], 0);
	
	GLES20.glBindRenderbuffer(GLES20.GL_RENDERBUFFER, depthRenderBuffer[0]);
	GLES20.glRenderbufferStorage(GLES20.GL_RENDERBUFFER, GLES20.GL_DEPTH_COMPONENT16, getWidth(), getHeight());
	GLES20.glFramebufferRenderbuffer(GLES20.GL_FRAMEBUFFER, GLES20.GL_DEPTH_ATTACHMENT, GLES20.GL_RENDERBUFFER, depthRenderBuffer[0]);
	
	int status = GLES20.glCheckFramebufferStatus(GLES20.GL_FRAMEBUFFER);
	if (status != GLES20.GL_FRAMEBUFFER_COMPLETE) {
		throw new RuntimeException(this+": Failed to set up render buffer with status "+status+" and error "+GLES20.glGetError());
	}
}
 

private void checkGlError(String op) {
    int error;
    while ((error = GLES20.glGetError()) != GLES20.GL_NO_ERROR) {
        Log.e(TAG, op + ": glError " + error);
        throw new RuntimeException(op + ": glError " + error);
    }
}
 

public GlShader(String vertexSource, String fragmentSource) {
    final int vertexShader = compileShader(GLES20.GL_VERTEX_SHADER, vertexSource);
    final int fragmentShader = compileShader(GLES20.GL_FRAGMENT_SHADER, fragmentSource);
    program = GLES20.glCreateProgram();
    if (program == 0) {
        throw new RuntimeException(
                "glCreateProgram() failed. GLES20 error: " + GLES20.glGetError());
    }
    GLES20.glAttachShader(program, vertexShader);
    GLES20.glAttachShader(program, fragmentShader);
    GLES20.glLinkProgram(program);
    int[] linkStatus = new int[] {GLES20.GL_FALSE};
    GLES20.glGetProgramiv(program, GLES20.GL_LINK_STATUS, linkStatus, 0);
    if (linkStatus[0] != GLES20.GL_TRUE) {
        Log.e(TAG, "Could not link program: " + GLES20.glGetProgramInfoLog(program));
        throw new RuntimeException(GLES20.glGetProgramInfoLog(program));
    }
    // According to the documentation of glLinkProgram():
    // "After the link operation, applications are free to modify attached shader objects,
    // compile
    // attached shader objects, detach shader objects, delete shader objects, and attach
    // additional
    // shader objects. None of these operations affects the information log or the program that
    // is
    // part of the program object."
    // But in practice, detaching shaders from the program seems to break some devices. Deleting
    // the
    // shaders are fine however - it will delete them when they are no longer attached to a
    // program.
    GLES20.glDeleteShader(vertexShader);
    GLES20.glDeleteShader(fragmentShader);
    GlUtil.checkNoGLES2Error("Creating GlShader");
}
 

public void checkError() throws GLException {
	final int error = GLES20.glGetError();
	if (error != GLES20.GL_NO_ERROR) {
		throw new GLException(error);
	}
}
 

public static void glCheck(String op) {
    int error;
    while ((error = GLES20.glGetError()) != GLES20.GL_NO_ERROR) {
        Log.e(TAG, op + ": glError " + android.opengl.GLUtils.getEGLErrorString(error));
    }
}
 

public static void HasGLError() {
    int error = GLES20.glGetError();
    if (error != 0) {
        Log.d("Paint", GLUtils.getEGLErrorString(error));
    }
}
 

private void initFBO() {
		if(frameBuffer != null) {
			GLES20.glDeleteFramebuffers(1, frameBuffer, 0);
			frameBuffer = null;
		}
		if(texture_out != null) {
			GLES20.glDeleteTextures(1, texture_out, 0);
			texture_out = null;
		}
		if(depthRenderBuffer != null) {
			GLES20.glDeleteRenderbuffers(1, depthRenderBuffer, 0);
			depthRenderBuffer = null;
		}
		frameBuffer = new int[1];
		texture_out = new int[1];
		depthRenderBuffer = new int[1];
		GLES20.glGenFramebuffers(1, frameBuffer, 0);
		GLES20.glGenRenderbuffers(1, depthRenderBuffer, 0);
		GLES20.glGenTextures(1, texture_out, 0);
		
		GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, frameBuffer[0]);
		
		GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
		GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, texture_out[0]);
		GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, getWidth(), getHeight(), 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);
		GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE);
		GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE);
		GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);
		GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);
		GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D, texture_out[0], 0);
		
		GLES20.glBindRenderbuffer(GLES20.GL_RENDERBUFFER, depthRenderBuffer[0]);
		GLES20.glRenderbufferStorage(GLES20.GL_RENDERBUFFER, GLES20.GL_DEPTH_COMPONENT16, getWidth(), getHeight());
		GLES20.glFramebufferRenderbuffer(GLES20.GL_FRAMEBUFFER, GLES20.GL_DEPTH_ATTACHMENT, GLES20.GL_RENDERBUFFER, depthRenderBuffer[0]);
		
		int status = GLES20.glCheckFramebufferStatus(GLES20.GL_FRAMEBUFFER);
		if (status != GLES20.GL_FRAMEBUFFER_COMPLETE) {
			throw new RuntimeException(this+": Failed to set up render buffer with status "+status+" and error "+GLES20.glGetError());
		}
	} 

private void initFBO() {
		if(frameBuffer != null) {
			GLES20.glDeleteFramebuffers(1, frameBuffer, 0);
			frameBuffer = null;
		}
		if(texture_out != null) {
			GLES20.glDeleteTextures(1, texture_out, 0);
			texture_out = null;
		}
		if(depthRenderBuffer != null) {
			GLES20.glDeleteRenderbuffers(1, depthRenderBuffer, 0);
			depthRenderBuffer = null;
		}
		frameBuffer = new int[1];
		texture_out = new int[1];
		depthRenderBuffer = new int[1];
		GLES20.glGenFramebuffers(1, frameBuffer, 0);
		GLES20.glGenRenderbuffers(1, depthRenderBuffer, 0);
		GLES20.glGenTextures(1, texture_out, 0);
		
		GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, frameBuffer[0]);
		
		GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
		GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, texture_out[0]);
		GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, getWidth(), getHeight(), 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);
		GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE);
		GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE);
		GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);
		GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);
		GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D, texture_out[0], 0);
		
		GLES20.glBindRenderbuffer(GLES20.GL_RENDERBUFFER, depthRenderBuffer[0]);
		GLES20.glRenderbufferStorage(GLES20.GL_RENDERBUFFER, GLES20.GL_DEPTH_COMPONENT16, getWidth(), getHeight());
		GLES20.glFramebufferRenderbuffer(GLES20.GL_FRAMEBUFFER, GLES20.GL_DEPTH_ATTACHMENT, GLES20.GL_RENDERBUFFER, depthRenderBuffer[0]);
		
		int status = GLES20.glCheckFramebufferStatus(GLES20.GL_FRAMEBUFFER);
		if (status != GLES20.GL_FRAMEBUFFER_COMPLETE) {
			throw new RuntimeException(this+": Failed to set up render buffer with status "+status+" and error "+GLES20.glGetError());
		}
	}