160 lines
5.3 KiB
Java
160 lines
5.3 KiB
Java
/*
|
|
* Copyright (C) 2021 pedroSG94.
|
|
*
|
|
* 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.pedro.encoder.input.gl.render;
|
|
|
|
import android.content.Context;
|
|
import android.graphics.SurfaceTexture;
|
|
import android.opengl.GLES11Ext;
|
|
import android.opengl.GLES20;
|
|
import android.opengl.Matrix;
|
|
import android.os.Build;
|
|
import androidx.annotation.RequiresApi;
|
|
import android.view.Surface;
|
|
import com.pedro.encoder.R;
|
|
import com.pedro.encoder.input.video.CameraHelper;
|
|
import com.pedro.encoder.utils.gl.GlUtil;
|
|
import java.nio.ByteBuffer;
|
|
import java.nio.ByteOrder;
|
|
|
|
/**
|
|
* Created by pedro on 29/01/18.
|
|
*/
|
|
|
|
@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR2)
|
|
public class CameraRender extends BaseRenderOffScreen {
|
|
|
|
private int[] textureID = new int[1];
|
|
private float[] rotationMatrix = new float[16];
|
|
private float[] scaleMatrix = new float[16];
|
|
|
|
private int program = -1;
|
|
private int uMVPMatrixHandle = -1;
|
|
private int uSTMatrixHandle = -1;
|
|
private int aPositionHandle = -1;
|
|
private int aTextureCameraHandle = -1;
|
|
|
|
private SurfaceTexture surfaceTexture;
|
|
private Surface surface;
|
|
|
|
public CameraRender() {
|
|
Matrix.setIdentityM(MVPMatrix, 0);
|
|
Matrix.setIdentityM(STMatrix, 0);
|
|
float[] vertex = CameraHelper.getVerticesData();
|
|
squareVertex = ByteBuffer.allocateDirect(vertex.length * FLOAT_SIZE_BYTES)
|
|
.order(ByteOrder.nativeOrder())
|
|
.asFloatBuffer();
|
|
squareVertex.put(vertex).position(0);
|
|
setRotation(0);
|
|
setFlip(false, false);
|
|
}
|
|
|
|
@Override
|
|
public void initGl(int width, int height, Context context, int previewWidth,
|
|
int previewHeight) {
|
|
this.width = width;
|
|
this.height = height;
|
|
GlUtil.checkGlError("initGl start");
|
|
String vertexShader = GlUtil.getStringFromRaw(context, R.raw.simple_vertex);
|
|
String fragmentShader = GlUtil.getStringFromRaw(context, R.raw.camera_fragment);
|
|
|
|
program = GlUtil.createProgram(vertexShader, fragmentShader);
|
|
aPositionHandle = GLES20.glGetAttribLocation(program, "aPosition");
|
|
aTextureCameraHandle = GLES20.glGetAttribLocation(program, "aTextureCoord");
|
|
uMVPMatrixHandle = GLES20.glGetUniformLocation(program, "uMVPMatrix");
|
|
uSTMatrixHandle = GLES20.glGetUniformLocation(program, "uSTMatrix");
|
|
uSTMatrixHandle = GLES20.glGetUniformLocation(program, "uSTMatrix");
|
|
|
|
//camera texture
|
|
GlUtil.createExternalTextures(textureID.length, textureID, 0);
|
|
surfaceTexture = new SurfaceTexture(textureID[0]);
|
|
surfaceTexture.setDefaultBufferSize(width, height);
|
|
surface = new Surface(surfaceTexture);
|
|
initFBO(width, height);
|
|
GlUtil.checkGlError("initGl end");
|
|
}
|
|
|
|
@Override
|
|
public void draw() {
|
|
GlUtil.checkGlError("drawCamera start");
|
|
GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, renderHandler.getFboId()[0]);
|
|
|
|
surfaceTexture.getTransformMatrix(STMatrix);
|
|
GLES20.glViewport(0, 0, width, height);
|
|
GLES20.glUseProgram(program);
|
|
GLES20.glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
|
|
GLES20.glClear(GLES20.GL_DEPTH_BUFFER_BIT | GLES20.GL_COLOR_BUFFER_BIT);
|
|
|
|
squareVertex.position(SQUARE_VERTEX_DATA_POS_OFFSET);
|
|
GLES20.glVertexAttribPointer(aPositionHandle, 3, GLES20.GL_FLOAT, false,
|
|
SQUARE_VERTEX_DATA_STRIDE_BYTES, squareVertex);
|
|
GLES20.glEnableVertexAttribArray(aPositionHandle);
|
|
|
|
squareVertex.position(SQUARE_VERTEX_DATA_UV_OFFSET);
|
|
GLES20.glVertexAttribPointer(aTextureCameraHandle, 2, GLES20.GL_FLOAT, false,
|
|
SQUARE_VERTEX_DATA_STRIDE_BYTES, squareVertex);
|
|
GLES20.glEnableVertexAttribArray(aTextureCameraHandle);
|
|
|
|
GLES20.glUniformMatrix4fv(uMVPMatrixHandle, 1, false, MVPMatrix, 0);
|
|
GLES20.glUniformMatrix4fv(uSTMatrixHandle, 1, false, STMatrix, 0);
|
|
//camera
|
|
GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
|
|
GLES20.glBindTexture(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, textureID[0]);
|
|
//draw
|
|
GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4);
|
|
|
|
GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);
|
|
GlUtil.checkGlError("drawCamera end");
|
|
}
|
|
|
|
@Override
|
|
public void release() {
|
|
GLES20.glDeleteProgram(program);
|
|
surfaceTexture.release();
|
|
surface.release();
|
|
}
|
|
|
|
public void updateTexImage() {
|
|
surfaceTexture.updateTexImage();
|
|
}
|
|
|
|
public SurfaceTexture getSurfaceTexture() {
|
|
return surfaceTexture;
|
|
}
|
|
|
|
public Surface getSurface() {
|
|
return surface;
|
|
}
|
|
|
|
public void setRotation(int rotation) {
|
|
Matrix.setIdentityM(rotationMatrix, 0);
|
|
Matrix.rotateM(rotationMatrix, 0, rotation, 0f, 0f, -1f);
|
|
update();
|
|
}
|
|
|
|
public void setFlip(boolean isFlipHorizontal, boolean isFlipVertical) {
|
|
Matrix.setIdentityM(scaleMatrix, 0);
|
|
Matrix.scaleM(scaleMatrix, 0, isFlipHorizontal ? -1f : 1f, isFlipVertical ? -1f : 1f, 1f);
|
|
update();
|
|
}
|
|
|
|
private void update() {
|
|
Matrix.setIdentityM(MVPMatrix, 0);
|
|
Matrix.multiplyMM(MVPMatrix, 0, scaleMatrix, 0, MVPMatrix, 0);
|
|
Matrix.multiplyMM(MVPMatrix, 0, rotationMatrix, 0, MVPMatrix, 0);
|
|
}
|
|
}
|