com.blastedstudios.ledge.ui.postprocessing.utils.ShaderLoader.java Source code

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Here is the source code for com.blastedstudios.ledge.ui.postprocessing.utils.ShaderLoader.java

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/*******************************************************************************
 * Copyright 2012 bmanuel
 * 
 * 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 com.blastedstudios.ledge.ui.postprocessing.utils;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.glutils.ShaderProgram;
import com.blastedstudios.gdxworld.util.Log;

public final class ShaderLoader {
    public static String BasePath = "data/shaders/";
    public static boolean Pedantic = true;

    public static ShaderProgram fromFile(String vertexFileName, String fragmentFileName) {
        return ShaderLoader.fromFile(vertexFileName, fragmentFileName, "");
    }

    public static ShaderProgram fromFile(String vertexFileName, String fragmentFileName, String defines) {
        String log = "\"" + vertexFileName + "/" + fragmentFileName + "\"";
        if (defines.length() > 0) {
            log += " w/ (" + defines.replace("\n", ", ") + ")";
        }
        log += "...";
        Log.log("ShaderLoader", "Compiling " + log);

        String vpSrc = Gdx.files.internal(BasePath + vertexFileName + ".vertex").readString();
        String fpSrc = Gdx.files.internal(BasePath + fragmentFileName + ".fragment").readString();

        ShaderProgram program = ShaderLoader.fromString(vpSrc, fpSrc, vertexFileName, fragmentFileName, defines);
        return program;
    }

    public static ShaderProgram fromString(String vertex, String fragment, String vertexName, String fragmentName) {
        return ShaderLoader.fromString(vertex, fragment, vertexName, fragmentName, "");
    }

    public static ShaderProgram fromString(String vertex, String fragment, String vertexName, String fragmentName,
            String defines) {
        ShaderProgram.pedantic = ShaderLoader.Pedantic;
        ShaderProgram shader = new ShaderProgram(defines + "\n" + vertex, defines + "\n" + fragment);

        if (!shader.isCompiled()) {
            Log.error("ShaderLoader", shader.getLog());
            System.exit(-1);
        }

        return shader;
    }

    private ShaderLoader() {
    }
}