Android Open Source - FxCameraApp Gl C G A Colorspace Shader

• Back to Camera/effect  ↑

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 ww  w.java2  s .  c  om
public class GlCGAColorspaceShader extends GlShader {

  private static final String FRAGMENT_SHADER =
      "precision mediump float;" +

      "varying vec2 vTextureCoord;" +
      "uniform lowp sampler2D sTexture;" +

      "void main() {" +
        "highp vec2 sampleDivisor = vec2(1.0 / 200.0, 1.0 / 320.0);" +
        //"highp vec4 colorDivisor = vec4(colorDepth);" +

        "highp vec2 samplePos = vTextureCoord - mod(vTextureCoord, sampleDivisor);" +
        "highp vec4 color = texture2D(sTexture, samplePos);" +

        //"gl_FragColor = texture2D(sTexture, samplePos);" +
        "mediump vec4 colorCyan = vec4(85.0 / 255.0, 1.0, 1.0, 1.0);" +
        "mediump vec4 colorMagenta = vec4(1.0, 85.0 / 255.0, 1.0, 1.0);" +
        "mediump vec4 colorWhite = vec4(1.0, 1.0, 1.0, 1.0);" +
        "mediump vec4 colorBlack = vec4(0.0, 0.0, 0.0, 1.0);" +

        "mediump vec4 endColor;" +
        "highp float blackDistance = distance(color, colorBlack);" +
        "highp float whiteDistance = distance(color, colorWhite);" +
        "highp float magentaDistance = distance(color, colorMagenta);" +
        "highp float cyanDistance = distance(color, colorCyan);" +

        "mediump vec4 finalColor;" +

        "highp float colorDistance = min(magentaDistance, cyanDistance);" +
        "colorDistance = min(colorDistance, whiteDistance);" +
        "colorDistance = min(colorDistance, blackDistance);" +

        "if (colorDistance == blackDistance) {" +
          "finalColor = colorBlack;" +
        "} else if (colorDistance == whiteDistance) {" +
          "finalColor = colorWhite;" +
        "} else if (colorDistance == cyanDistance) {" +
          "finalColor = colorCyan;" +
        "} else {" +
          "finalColor = colorMagenta;" +
        "}" +

        "gl_FragColor = finalColor;" +
      "}";

  protected String mShaderName = "CGA Colors";

  public String getName() {
    return mShaderName;
  }

  public GlCGAColorspaceShader() {
    super(DEFAULT_VERTEX_SHADER, FRAGMENT_SHADER);
  }

}

Java Source Code List

• Back to Camera/effect  ↑