GLSurfaceView screenshot save picture

GLSurfaceView screenshot save picture

package com.byteflow.app;

import android.graphics.Bitmap;
import android.opengl.GLES20;
import android.opengl.GLSurfaceView;
import android.util.Log;

import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.opengles.GL10;

import static com.byteflow.app.MyNativeRender.SAMPLE_TYPE;
import static com.byteflow.app.MyNativeRender.SAMPLE_TYPE_SET_GRAVITY_XY;
import static com.byteflow.app.MyNativeRender.SAMPLE_TYPE_SET_TOUCH_LOC;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;

public class MyGLRender implements GLSurfaceView.Renderer {
    private static final String TAG = "MyGLRender";
    private MyNativeRender mNativeRender;
    private int mSampleType;
    private int mTextureId;
    private int mShaderProgram;
    private ByteBuffer mPixelBuffer;
    MyGLRender() {
        mNativeRender = new MyNativeRender();
    }

    @Override
    public void onSurfaceCreated(GL10 gl, EGLConfig config) {
        mNativeRender.native_OnSurfaceCreated();
        Log.e(TAG, "onSurfaceCreated() called with: GL_VERSION = [" + gl.glGetString(GL10.GL_VERSION) + "]");
        int[] textures = new int[1];
        mTextureId = textures[0];
    }

    @Override
    public void onSurfaceChanged(GL10 gl, int width, int height) {
        mNativeRender.native_OnSurfaceChanged(width, height);
        mPixelBuffer = ByteBuffer.allocateDirect(width * height * 4);
        mPixelBuffer.order(ByteOrder.nativeOrder());
    }

    @Override
    public void onDrawFrame(GL10 gl) {
        mNativeRender.native_OnDrawFrame();
        int width=1920;
        int height=1080;
        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, mTextureId);


        String filePath="/storage/emulated/0/Android/data/com.byteflow.app/files/aaa.jpg";
        // 读取像素数据
        GLES20.glReadPixels(0, 0, width, height, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, mPixelBuffer);

        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        bitmap.copyPixelsFromBuffer(mPixelBuffer);

        File file = new File(filePath);
        FileOutputStream fos = null;
        try {
            fos = new FileOutputStream(file);
            bitmap.compress(Bitmap.CompressFormat.PNG, 100, fos);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (fos != null) {
                try {
                    fos.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    public void init() {
        mNativeRender.native_Init();
    }

    public void unInit() {
        mNativeRender.native_UnInit();
    }

    public void setParamsInt(int paramType, int value0, int value1) {
        if (paramType == SAMPLE_TYPE) {
            mSampleType = value0;
        }
        mNativeRender.native_SetParamsInt(paramType, value0, value1);
    }

    public void setTouchLoc(float x, float y)
    {
        mNativeRender.native_SetParamsFloat(SAMPLE_TYPE_SET_TOUCH_LOC, x, y);
    }

    public void setGravityXY(float x, float y) {
        mNativeRender.native_SetParamsFloat(SAMPLE_TYPE_SET_GRAVITY_XY, x, y);
    }

    public void setImageData(int format, int width, int height, byte[] bytes) {
        mNativeRender.native_SetImageData(format, width, height, bytes);
    }

    public void setImageDataWithIndex(int index, int format, int width, int height, byte[] bytes) {
        mNativeRender.native_SetImageDataWithIndex(index, format, width, height, bytes);
    }

    public void setAudioData(short[] audioData) {
        mNativeRender.native_SetAudioData(audioData);
    }

    public int getSampleType() {
        return mSampleType;
    }

    public void updateTransformMatrix(float rotateX, float rotateY, float scaleX, float scaleY)
    {
        mNativeRender.native_UpdateTransformMatrix(rotateX, rotateY, scaleX, scaleY);
    }

}