Example usage for org.lwjgl.opengl GL20 glValidateProgram

Introduction

In this page you can find the example usage for org.lwjgl.opengl GL20 glValidateProgram.

Prototype

public static void glValidateProgram(@NativeType("GLuint") int program)

Source Link

Document

Validates a program object.

Usage

From source file:vertigo.graphics.lwjgl.ShaderUtils.java

License:Open Source License

public static int attachShaders(String vertexCode, String fragmentCode) throws Exception {
    int vertexShaderProgram;
    int fragmentShaderProgram;
    int shaderprogram;
    String log = "";

    vertexShaderProgram = compileShader(vertexCode, GL20.GL_VERTEX_SHADER);
    fragmentShaderProgram = compileShader(fragmentCode, GL20.GL_FRAGMENT_SHADER);

    shaderprogram = GL20.glCreateProgram();
    GL20.glAttachShader(shaderprogram, vertexShaderProgram);
    GL20.glAttachShader(shaderprogram, fragmentShaderProgram);
    GL20.glLinkProgram(shaderprogram);/* w  w w . j a v  a 2s.c o  m*/

    //grab our info log
    String infoLog = GL20.glGetProgramInfoLog(shaderprogram,
            GL20.glGetProgrami(shaderprogram, GL20.GL_INFO_LOG_LENGTH));

    //if some log exists, append it 
    if (infoLog != null && infoLog.trim().length() != 0)
        log += infoLog;

    //if the link failed, throw some sort of exception
    if (GL20.glGetProgrami(shaderprogram, GL20.GL_LINK_STATUS) == GL11.GL_FALSE)
        throw new LWJGLException("Failure in linking program. Error log:\n" + infoLog);

    //detach and delete the shaders which are no longer needed
    GL20.glDetachShader(shaderprogram, vertexShaderProgram);
    GL20.glDetachShader(shaderprogram, fragmentShaderProgram);
    GL20.glDeleteShader(vertexShaderProgram);
    GL20.glDeleteShader(fragmentShaderProgram);

    GL20.glValidateProgram(shaderprogram);

    return shaderprogram;
}

From source file:vertigo.graphics.lwjgl.ShaderUtils.java

License:Open Source License

private static int attachVFShaders(ShaderProg prog) throws Exception {
    System.out.println("attachVFShader");

    int vertexShaderProgram;
    int fragmentShaderProgram;
    int shaderprogram;
    vertexShaderProgram = GL20.glCreateShader(GL20.GL_VERTEX_SHADER);
    fragmentShaderProgram = GL20.glCreateShader(GL20.GL_FRAGMENT_SHADER);

    GL20.glShaderSource(vertexShaderProgram, prog.getVertexSource());
    GL20.glCompileShader(vertexShaderProgram);
    if (GL20.glGetShaderi(vertexShaderProgram, GL20.GL_COMPILE_STATUS) == GL11.GL_FALSE) {
        System.err.println("Compile error of vertexshader");
    }//from ww w .  j a v a2  s .com

    GL20.glShaderSource(fragmentShaderProgram, prog.getFragmentSource());
    GL20.glCompileShader(fragmentShaderProgram);
    if (GL20.glGetShaderi(fragmentShaderProgram, GL20.GL_COMPILE_STATUS) == GL11.GL_FALSE) {
        System.err.println("Compile error of fragmentshader");
    }

    //
    shaderprogram = GL20.glCreateProgram();

    GL20.glAttachShader(shaderprogram, vertexShaderProgram);
    GL20.glAttachShader(shaderprogram, fragmentShaderProgram);
    GL20.glLinkProgram(shaderprogram);
    GL20.glValidateProgram(shaderprogram);

    if (GL20.glGetProgrami(shaderprogram, GL20.GL_LINK_STATUS) == GL11.GL_FALSE) {

        IntBuffer intBuffer = BufferTools.newIntBuffer(1);
        GL20.glGetProgram(shaderprogram, GL20.GL_INFO_LOG_LENGTH, intBuffer);

        int size = intBuffer.get(0);
        System.err.println("Program link error: " + size);
        if (size > 0) {
            ByteBuffer byteBuffer = BufferTools.newByteBuffer(size);
            GL20.glGetProgramInfoLog(shaderprogram, intBuffer, byteBuffer);
            byteBuffer.rewind();
            byte[] bytearray = new byte[byteBuffer.remaining()];
            byteBuffer.get(bytearray);
            System.err.println(bytearray.length);
            String s = new String(bytearray, 0, bytearray.length - 1, Charset.forName("UTF-8"));
            System.err.print("<<" + s + ">>");
            /**
             * *
             * for (byte b : bytearray) { System.err.print(b+";"); } *
             */
            System.err.println(" - End");
        } else {
            System.out.println("Unknown");
        }
        System.exit(1);
    }
    System.out.println("End of attachVFShader");
    return shaderprogram;

}

From source file:wrath.client.graphics.ShaderProgram.java

License:Open Source License

/**
 * Finalizes the shader and prepares it for rendering.
 * This is called automatically!//from  ww  w  .  j  a va  2  s.c om
 */
public void finish() {
    GL20.glUseProgram(programID);
    GL20.glLinkProgram(programID);
    GL20.glValidateProgram(programID);
    setProjectionMatrix(Game.getCurrentInstance().getRenderer().getProjectionMatrix());
    finalized = true;
}