Android Open Source - glvideoplayer-android F B O Texture

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Back to project page glvideoplayer-android.

License

The source code is released under:

Apache License

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Java Source Code

package net.binzume.android.glvideoplayer;
//from w ww . jav  a  2  s  . c om
import android.graphics.SurfaceTexture;
import android.opengl.GLES20;

public abstract class FBOTexture {
  protected SurfaceTexture surfaceTexture;
  protected boolean textureUpdated;
  public int textureName = -1;

  private int FBO;
  private int RBOD;
  

  protected SurfaceTexture createSurfaceTexture(int width, int height) {

    // color
    int ret[] = new int[1];
    GLES20.glGenFramebuffers(1, ret, 0);
    FBO = ret[0];
    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, FBO);
    
    // depth
    GLES20.glGenRenderbuffers(1, ret, 0);
    RBOD = ret[0];
    GLES20.glBindRenderbuffer(GLES20.GL_RENDERBUFFER, RBOD);
    GLES20.glRenderbufferStorage(GLES20.GL_RENDERBUFFER, GLES20.GL_DEPTH_COMPONENT16, width, height);
    GLES20.glFramebufferRenderbuffer(GLES20.GL_FRAMEBUFFER, GLES20.GL_DEPTH_ATTACHMENT, GLES20.GL_RENDERBUFFER, RBOD);
    
    
    int tex[] = new int[1];
    GLES20.glGenTextures(1, tex, 0);
    GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, tex[0]);
    GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_S, GLES20.GL_CLAMP_TO_EDGE);
    GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_WRAP_T, GLES20.GL_CLAMP_TO_EDGE);
    GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MAG_FILTER, GLES20.GL_LINEAR);
    GLES20.glTexParameteri(GLES20.GL_TEXTURE_2D, GLES20.GL_TEXTURE_MIN_FILTER, GLES20.GL_LINEAR);
    GLES20.glTexImage2D(GLES20.GL_TEXTURE_2D, 0, GLES20.GL_RGBA, width, height, 0, GLES20.GL_RGBA, GLES20.GL_UNSIGNED_BYTE, null);
    GLES20.glFramebufferTexture2D(GLES20.GL_FRAMEBUFFER, GLES20.GL_COLOR_ATTACHMENT0, GLES20.GL_TEXTURE_2D, tex[0], 0);

    GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);
    
    textureName = tex[0];
    final SurfaceTexture t = new SurfaceTexture(tex[0]);
    t.setOnFrameAvailableListener(new SurfaceTexture.OnFrameAvailableListener() {
      
      @Override
      public void onFrameAvailable(SurfaceTexture surfaceTexture) {
        textureUpdated = true;
      }
    });
    return t;
  }
  
  public void update() {
    if (textureUpdated) {
      textureUpdated = false;
      surfaceTexture.updateTexImage();
      // cameraTexture.getTransformMatrix(mtx);
    }
  }
  
  abstract public void bindBuffer(GLShaderProgram glsl);
  
  public void release() {
    if (textureName > 0) {
      GLES20.glDeleteTextures(0, new int[]{textureName}, 0);
      textureName = -1;
    }
    if (surfaceTexture != null) {
      surfaceTexture.release();
      surfaceTexture = null;
    }
  }

}

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