ivorius.ivtoolkit.rendering.IvShaderInstanceMC.java Source code

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Here is the source code for ivorius.ivtoolkit.rendering.IvShaderInstanceMC.java

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/*
 * Copyright 2014 Lukas Tenbrink
 *
 *    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 ivorius.ivtoolkit.rendering;

import com.google.common.base.Charsets;
import net.minecraft.client.Minecraft;
import net.minecraft.client.resources.IResource;
import net.minecraft.util.ResourceLocation;
import org.apache.commons.io.IOUtils;

import java.io.IOException;

/**
 * Created by lukas on 17.02.14.
 */
public class IvShaderInstanceMC {
    @Deprecated
    /**
     * Use IvShaderLoaderMC instead.
     */
    public static void trySettingUpShader(IvShaderInstance shaderInstance, ResourceLocation vertexShader,
            ResourceLocation fragmentShader, String utils) {
        String vShader = null;
        String fShader = null;

        IResource vShaderRes = null;
        IResource fShaderRes = null;

        try {
            vShaderRes = Minecraft.getMinecraft().getResourceManager().getResource(vertexShader);
            fShaderRes = Minecraft.getMinecraft().getResourceManager().getResource(fragmentShader);
        } catch (IOException e) {
            e.printStackTrace();
        }

        if (vShaderRes != null && fShaderRes != null) {
            try {
                vShader = IOUtils.toString(vShaderRes.getInputStream(), Charsets.UTF_8);
                fShader = IOUtils.toString(fShaderRes.getInputStream(), Charsets.UTF_8);
            } catch (IOException e) {
                e.printStackTrace();
            }

            if (vShader != null && fShader != null) {
                if (utils != null) {
                    vShader = addUtils(vShader, utils);
                    fShader = addUtils(fShader, utils);
                }

                shaderInstance.trySettingUpShader(vShader, fShader);
            }
        }
    }

    @Deprecated
    public static String addUtils(String shader, String utils) {
        int indexVersion = shader.indexOf("#version");
        if (indexVersion < 0) {
            indexVersion = 0;
        }

        int indexVersionNL = shader.indexOf("\n", indexVersion);

        return shader.substring(0, indexVersionNL + 1) + utils + shader.substring(indexVersionNL + 1);
    }
}