Android Open Source - FxCameraApp Gl Two Input Shader

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From Project

Back to project page FxCameraApp.

License

The source code is released under:

MIT License

Java Source Code

package com.af.experiments.FxCameraApp.shaders;
//from w w  w .  j ava 2 s .  co  m
import com.af.experiments.FxCameraApp.ogles.Texture;
import com.af.experiments.FxCameraApp.renderer.GLES20FramebufferObject;

import static android.opengl.GLES20.*;

public abstract class GlTwoInputShader extends GlShader {

  public static final String UNIFORM_SAMPLER2 = "sTexture2";

  private final Texture mTexture;

  protected GlTwoInputShader(final String vertexShaderSource, final String fragmentShaderSource, final Texture texture) {
    super(vertexShaderSource, fragmentShaderSource);
    mTexture = texture;
  }

  @Override
  public void setup() {
    release();
    super.setup();
    mTexture.setup();
  }

  @Override
  public void release() {
    mTexture.release();
    super.release();
  }

  @Override
  public void draw(final int texName, final GLES20FramebufferObject fbo) {
    useProgram();

    glBindBuffer(GL_ARRAY_BUFFER, getVertexBufferName());
    glEnableVertexAttribArray(getHandle(DEFAULT_ATTRIB_POSITION));
    glVertexAttribPointer(getHandle(DEFAULT_ATTRIB_POSITION), VERTICES_DATA_POS_SIZE, GL_FLOAT, false, VERTICES_DATA_STRIDE_BYTES, VERTICES_DATA_POS_OFFSET);
    glEnableVertexAttribArray(getHandle(DEFAULT_ATTRIB_TEXTURE_COORDINATE));
    glVertexAttribPointer(getHandle(DEFAULT_ATTRIB_TEXTURE_COORDINATE), VERTICES_DATA_UV_SIZE, GL_FLOAT, false, VERTICES_DATA_STRIDE_BYTES, VERTICES_DATA_UV_OFFSET);

    glActiveTexture(GL_TEXTURE0);
    glBindTexture(GL_TEXTURE_2D, texName);
    glUniform1i(getHandle(DEFAULT_UNIFORM_SAMPLER), 0);

    glActiveTexture(GL_TEXTURE1);
    glBindTexture(GL_TEXTURE_2D, mTexture.getTexName());
    glUniform1i(getHandle(UNIFORM_SAMPLER2), 1);

    onDraw();

    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);

    glDisableVertexAttribArray(getHandle(DEFAULT_ATTRIB_POSITION));
    glDisableVertexAttribArray(getHandle(DEFAULT_ATTRIB_TEXTURE_COORDINATE));
    glBindBuffer(GL_ARRAY_BUFFER, 0);
    glBindTexture(GL_TEXTURE_2D, 0);
  }

}

Java Source Code List

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