97 lines
3.5 KiB
Java
97 lines
3.5 KiB
Java
/*
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* Copyright (C) 2021 pedroSG94.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.pedro.encoder.input.gl.render;
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import android.content.Context;
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import android.opengl.GLES20;
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import android.os.Build;
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import androidx.annotation.RequiresApi;
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import com.pedro.encoder.utils.gl.GlUtil;
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import java.nio.FloatBuffer;
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/**
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* Created by pedro on 29/01/18.
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*/
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@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN_MR2)
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public abstract class BaseRenderOffScreen {
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protected FloatBuffer squareVertex;
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public static final int FLOAT_SIZE_BYTES = 4;
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public static final int SQUARE_VERTEX_DATA_STRIDE_BYTES = 5 * FLOAT_SIZE_BYTES;
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public static final int SQUARE_VERTEX_DATA_POS_OFFSET = 0;
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public static final int SQUARE_VERTEX_DATA_UV_OFFSET = 3;
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protected float[] MVPMatrix = new float[16];
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protected float[] STMatrix = new float[16];
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protected RenderHandler renderHandler = new RenderHandler();
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protected int width;
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protected int height;
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public abstract void initGl(int width, int height, Context context, int previewWidth,
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int previewHeight);
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public abstract void draw();
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public abstract void release();
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public int getTexId() {
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return renderHandler.getTexId()[0];
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}
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protected void initFBO(int width, int height) {
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initFBO(width, height, renderHandler.getFboId(), renderHandler.getRboId(),
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renderHandler.getTexId());
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}
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protected void initFBO(int width, int height, int[] fboId, int[] rboId, int[] texId) {
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GlUtil.checkGlError("initFBO_S");
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GLES20.glGenFramebuffers(1, fboId, 0);
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GLES20.glGenRenderbuffers(1, rboId, 0);
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GLES20.glGenTextures(1, texId, 0);
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GLES20.glBindRenderbuffer(GLES20.GL_RENDERBUFFER, rboId[0]);
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GLES20.glRenderbufferStorage(GLES20.GL_RENDERBUFFER, GLES20.GL_DEPTH_COMPONENT16, width,
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height);
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GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, fboId[0]);
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GLES20.glFramebufferRenderbuffer(GLES20.GL_FRAMEBUFFER, GLES20.GL_DEPTH_ATTACHMENT,
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GLES20.GL_RENDERBUFFER, rboId[0]);
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GLES20.glActiveTexture(GLES20.GL_TEXTURE3);
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GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, texId[0]);
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GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_NEAREST);
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GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_NEAREST);
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GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE);
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GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE);
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GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, width, height, 0, GLES20.GL_RGBA,
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GLES20.GL_UNSIGNED_BYTE, null);
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GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0,
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GLES20.GL_TEXTURE_2D, texId[0], 0);
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int status = GLES20.glCheckFramebufferStatus(GLES20.GL_FRAMEBUFFER);
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if (status != GLES20.GL_FRAMEBUFFER_COMPLETE) {
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throw new RuntimeException("FrameBuffer uncompleted code: " + status);
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}
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GlUtil.checkGlError("initFBO_E");
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}
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}
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