package com.seu.magicfilter.advanced;

import java.nio.ByteBuffer;

import android.opengl.GLES20;

import com.seu.magicfilter.utils.MagicFilterType;
import net.ossrs.yasea.R;

import com.seu.magicfilter.base.gpuimage.GPUImageFilter;
import com.seu.magicfilter.utils.OpenGLUtils;

public class MagicSweetsFilter extends GPUImageFilter{
    private int[] mToneCurveTexture = {-1};
    private int mToneCurveTextureUniformLocation;
    private int mMaskGrey1TextureId = -1;
    private int mMaskGrey1UniformLocation;
    private int mLowPerformanceUniformLocation;
    
    public MagicSweetsFilter(){
        super(MagicFilterType.SWEETS, R.raw.sweets);
    }

    @Override
    protected void onDestroy(){
        super.onDestroy();
        GLES20.glDeleteTextures(2, new int[]{mToneCurveTexture[0], mMaskGrey1TextureId}, 0);
        mToneCurveTexture[0] = -1;
        mMaskGrey1TextureId = -1;
    }

    @Override
    protected void onDrawArraysAfter(){
        if (mToneCurveTexture[0] != -1){
            GLES20.glActiveTexture(GLES20.GL_TEXTURE3);
            GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, 0);
            GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
        }
        if (mMaskGrey1TextureId != -1){
            GLES20.glActiveTexture(GLES20.GL_TEXTURE4);
            GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, 0);
            GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
        }
    }

    @Override
    protected void onDrawArraysPre(){
        if (mToneCurveTexture[0] != -1){
            GLES20.glActiveTexture(GLES20.GL_TEXTURE3);
            GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mToneCurveTexture[0]);
            GLES20.glUniform1i(mToneCurveTextureUniformLocation, 3);
        }
        if (mMaskGrey1TextureId != -1){
            GLES20.glActiveTexture(GLES20.GL_TEXTURE4);
            GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mMaskGrey1TextureId);
            GLES20.glUniform1i(mMaskGrey1UniformLocation, 4);
        }
    }

    @Override
    protected void onInit(){
        super.onInit();
        mToneCurveTextureUniformLocation = GLES20.glGetUniformLocation(getProgram(), "curve");
        mMaskGrey1UniformLocation = GLES20.glGetUniformLocation(getProgram(), "grey1Frame");
        mLowPerformanceUniformLocation = GLES20.glGetUniformLocation(getProgram(), "lowPerformance");
        setInteger(mLowPerformanceUniformLocation, 1);
    }

    @Override
    protected void onInitialized(){
        super.onInitialized();
        runOnDraw(new Runnable(){
            public void run(){
                GLES20.glGenTextures(1, mToneCurveTexture, 0);
                GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mToneCurveTexture[0]);
                GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D,
                        GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);
                GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D,
                        GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);
                GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D,
                        GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE);
                GLES20.glTexParameterf(GLES20.GL_TEXTURE_2D,
                        GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE);                
                byte[] arrayOfByte = new byte[1024];
                int[] arrayOfInt = { 0, 1, 2, 2, 3, 4, 5, 6, 6, 7, 8, 9, 10, 10, 11, 12, 13, 14, 14, 15, 16, 17, 18, 19, 19, 20, 21, 22, 23, 24, 24, 25, 26, 27, 28, 29, 30, 30, 31, 32, 33, 34, 35, 36, 37, 38, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 71, 72, 73, 74, 75, 76, 77, 79, 80, 81, 82, 83, 84, 86, 87, 88, 89, 90, 92, 93, 94, 95, 96, 98, 99, 100, 101, 103, 104, 105, 106, 108, 109, 110, 111, 113, 114, 115, 116, 118, 119, 120, 121, 123, 124, 125, 126, 128, 129, 130, 132, 133, 134, 135, 137, 138, 139, 140, 142, 143, 144, 145, 147, 148, 149, 150, 152, 153, 154, 155, 157, 158, 159, 160, 161, 163, 164, 165, 166, 167, 169, 170, 171, 172, 173, 174, 176, 177, 178, 179, 180, 181, 182, 183, 184, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 209, 210, 211, 212, 213, 214, 215, 216, 217, 217, 218, 219, 220, 221, 222, 222, 223, 224, 225, 226, 227, 227, 228, 229, 230, 230, 231, 232, 233, 234, 234, 235, 236, 237, 237, 238, 239, 240, 240, 241, 242, 243, 243, 244, 245, 246, 246, 247, 248, 248, 249, 250, 251, 251, 252, 253, 254, 254, 255 };
                for (int i = 0; i < 256; i++){
                  arrayOfByte[(i * 4)] = ((byte)arrayOfInt[i]);
                  arrayOfByte[(1 + i * 4)] = ((byte)arrayOfInt[i]);
                  arrayOfByte[(2 + i * 4)] = ((byte)arrayOfInt[i]);
                  arrayOfByte[(3 + i * 4)] = ((byte)i);
                }
                GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, 256, 1, 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, ByteBuffer.wrap(arrayOfByte));
                mMaskGrey1TextureId = OpenGLUtils.loadTexture(getContext(), "filter/rise_mask2.jpg");
            }
        });
    }
}
