Example usage for org.lwjgl.opengl ARBVertexShader glGetAttribLocationARB

Introduction

In this page you can find the example usage for org.lwjgl.opengl ARBVertexShader glGetAttribLocationARB.

Prototype

@NativeType("GLint")
public static int glGetAttribLocationARB(@NativeType("GLhandleARB") int programObj,
        @NativeType("GLchar const *") CharSequence name) 

Source Link

Document

Returns the location of an attribute variable.

Usage

From source file:com.a2client.corex.ShaderAttrib.java

License:Open Source License

public void init(int ShaderID, String name, Const.SHADER_ATTRIB_TYPE attrib_type, boolean norm) {
    //        ARBShaderObjects.glUseProgramObjectARB(ShaderID);
    this.Name = name;
    this.ID = ARBVertexShader.glGetAttribLocationARB(ShaderID, name);
    this.Type = attrib_type;
    int type_ord = attrib_type.ordinal();
    this.Size = type_ord % 4 + 1;
    this.Norm = norm;
    switch (this.Type) {
    case atVec1b:
        this.DType = GL11.GL_UNSIGNED_BYTE;
        break;//  w  w w.  j a  va  2 s  . c o  m
    case atVec2b:
        this.DType = GL11.GL_UNSIGNED_BYTE;
        break;
    case atVec3b:
        this.DType = GL11.GL_UNSIGNED_BYTE;
        break;
    case atVec4b:
        this.DType = GL11.GL_UNSIGNED_BYTE;
        break;

    case atVec1s:
        this.DType = GL11.GL_SHORT;
        break;
    case atVec2s:
        this.DType = GL11.GL_SHORT;
        break;
    case atVec3s:
        this.DType = GL11.GL_SHORT;
        break;
    case atVec4s:
        this.DType = GL11.GL_SHORT;

    case atVec1f:
        this.DType = GL11.GL_FLOAT;
        break;
    case atVec2f:
        this.DType = GL11.GL_FLOAT;
        break;
    case atVec3f:
        this.DType = GL11.GL_FLOAT;
        break;
    case atVec4f:
        this.DType = GL11.GL_FLOAT;
        break;
    }
}

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From source file:com.ardor3d.scene.state.lwjgl.shader.LwjglShaderUtil.java

License:Open Source License

/**
 * Update variableID for attribute shadervariable if needed.
 * //from  w ww.j  a  v  a 2  s  .  c o m
 * @param variable
 *            shadervaribale to update ID on
 * @param programID
 *            shader program context ID
 */
public static void updateAttributeLocation(final ShaderVariable variable, final int programID) {
    if (variable.variableID == -1) {
        final ByteBuffer nameBuf = BufferUtils.createByteBuffer(variable.name.getBytes().length + 1);
        nameBuf.clear();
        nameBuf.put(variable.name.getBytes());
        nameBuf.rewind();

        variable.variableID = ARBVertexShader.glGetAttribLocationARB(programID, nameBuf);

        if (variable.variableID == -1 && !variable.errorLogged) {
            logger.severe("Shader attribute [" + variable.name + "] could not be located in shader");
            variable.errorLogged = true;
        }
    }
}

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From source file:taiga.code.opengl.shaders.ShaderProgram.java

License:Open Source License

/**
 * Returns the index for a given attribute in this {@link ShaderProgram}.
 * Th program must be loaded before this method is called.
 * //  ww w.j  a v a  2 s .c om
 * @param name The name of the attribute to look up.
 * @return The index of the attribute , or -1 if there was a problem.
 */
public Location getAttributeLocation(String name) {
    Location output = new Location(name, false);
    output.index = ARBVertexShader.glGetAttribLocationARB(shaderprog, name);
    locations.put(name, output);

    return output;
}

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From source file:taiga.code.opengl.shaders.ShaderProgram.java

License:Open Source License

@Override
public void load() {
    try {/*from   w  ww .ja  v  a 2  s .com*/
        shaderprog = ARBShaderObjects.glCreateProgramObjectARB();

        if (!fragsrc.isEmpty()) {
            String[] src = new String[fragsrc.size()];
            fragsrc.toArray(src);

            attachShader(shaderprog, ARBFragmentShader.GL_FRAGMENT_SHADER_ARB, src);
        }

        if (!vertsrc.isEmpty()) {
            String[] src = new String[vertsrc.size()];
            vertsrc.toArray(src);

            attachShader(shaderprog, ARBVertexShader.GL_VERTEX_SHADER_ARB, src);
        }

        if (!geomsrc.isEmpty()) {
            String[] src = new String[geomsrc.size()];
            geomsrc.toArray(src);

            attachShader(shaderprog, ARBGeometryShader4.GL_GEOMETRY_SHADER_ARB, src);
        }

        ARBShaderObjects.glLinkProgramARB(shaderprog);
        if (ARBShaderObjects.glGetObjectParameteriARB(shaderprog,
                ARBShaderObjects.GL_OBJECT_LINK_STATUS_ARB) == GL11.GL_FALSE) {
            throw new RuntimeException(getLog(shaderprog));
        }

        ARBShaderObjects.glValidateProgramARB(shaderprog);
        if (ARBShaderObjects.glGetObjectParameteriARB(shaderprog,
                ARBShaderObjects.GL_OBJECT_VALIDATE_STATUS_ARB) == GL11.GL_FALSE) {
            throw new RuntimeException(getLog(shaderprog));
        }
    } catch (RuntimeException ex) {
        ARBShaderObjects.glDeleteObjectARB(shaderprog);

        throw ex;
    }

    for (Location loc : locations.values()) {
        if (loc.uniform)
            loc.index = ARBShaderObjects.glGetUniformLocationARB(shaderprog, loc.name);
        else
            loc.index = ARBVertexShader.glGetAttribLocationARB(shaderprog, loc.name);
    }
}

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