org.jogamp.glg2d.impl.shader.text.TextPipeline.java Source code

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Here is the source code for org.jogamp.glg2d.impl.shader.text.TextPipeline.java

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/*
 * Copyright 2013 Brandon Borkholder
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jogamp.glg2d.impl.shader.text;

import org.lwjgl.opengl.GL20;

import org.jogamp.glg2d.impl.shader.AnyModePipeline;

public class TextPipeline extends AnyModePipeline {
    protected int xOffsetLocation = -1;
    protected int yOffsetLocation = -1;

    public TextPipeline() {
        this("TextShader.v", "FixedFuncShader.f");
    }

    public TextPipeline(String vertexShaderFilename, String fragmentShaderFilename) {
        super(vertexShaderFilename, fragmentShaderFilename);
    }

    public void setLocation(float x, float y) {
        if (xOffsetLocation >= 0) {
            GL20.glUniform1f(xOffsetLocation, x);
        }

        if (yOffsetLocation >= 0) {
            GL20.glUniform1f(yOffsetLocation, y);
        }
    }

    @Override
    protected void setupUniformsAndAttributes() {
        super.setupUniformsAndAttributes();

        xOffsetLocation = GL20.glGetUniformLocation(programId, "u_xoffset");
        yOffsetLocation = GL20.glGetUniformLocation(programId, "u_yoffset");
    }
}