Android Open Source - FxCameraApp Gl Threex3 Convolution Shader






From Project

Back to project page FxCameraApp.

License

The source code is released under:

MIT License

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Java Source Code

package com.af.experiments.FxCameraApp.shaders;
/*  w  w  w .j a  v  a  2s.co  m*/
import static android.opengl.GLES20.glUniformMatrix3fv;

public class GlThreex3ConvolutionShader extends GlThreex3TextureSamplingShader {

  private static final String FRAGMENT_SHADER =
      "precision highp float;\n" +

      "uniform lowp sampler2D sTexture;\n" +
      "uniform mediump mat3 convolutionMatrix;\n" +

      "varying vec2 textureCoordinate;\n" +
      "varying vec2 leftTextureCoordinate;\n" +
      "varying vec2 rightTextureCoordinate;\n" +

      "varying vec2 topTextureCoordinate;\n" +
      "varying vec2 topLeftTextureCoordinate;\n" +
      "varying vec2 topRightTextureCoordinate;\n" +

      "varying vec2 bottomTextureCoordinate;\n" +
      "varying vec2 bottomLeftTextureCoordinate;\n" +
      "varying vec2 bottomRightTextureCoordinate;\n" +

      "void main() {\n" +
        "mediump vec4 bottomColor      = texture2D(sTexture, bottomTextureCoordinate);\n" +
        "mediump vec4 bottomLeftColor  = texture2D(sTexture, bottomLeftTextureCoordinate);\n" +
        "mediump vec4 bottomRightColor = texture2D(sTexture, bottomRightTextureCoordinate);\n" +

        "mediump vec4 centerColor = texture2D(sTexture, textureCoordinate);\n" +
        "mediump vec4 leftColor   = texture2D(sTexture, leftTextureCoordinate);\n" +
        "mediump vec4 rightColor  = texture2D(sTexture, rightTextureCoordinate);\n" +

        "mediump vec4 topColor      = texture2D(sTexture, topTextureCoordinate);\n" +
        "mediump vec4 topRightColor = texture2D(sTexture, topRightTextureCoordinate);\n" +
        "mediump vec4 topLeftColor  = texture2D(sTexture, topLeftTextureCoordinate);\n" +

        "mediump vec4 resultColor = topLeftColor * convolutionMatrix[0][0] + topColor * convolutionMatrix[0][1] + topRightColor * convolutionMatrix[0][2];\n" +
        "resultColor += leftColor * convolutionMatrix[1][0] + centerColor * convolutionMatrix[1][1] + rightColor * convolutionMatrix[1][2];\n" +
        "resultColor += bottomLeftColor * convolutionMatrix[2][0] + bottomColor * convolutionMatrix[2][1] + bottomRightColor * convolutionMatrix[2][2];\n" +
        "gl_FragColor = resultColor;\n" +
      "}";

  private static final float[] DEFAULT_CONVOLUTION_KERNEL = new float[] {
      0f, 0f, 0f,
      0f, 1f, 0f,
      0f, 0f, 0f
    };
  
  private float[] mConvolutionKernel;

  public GlThreex3ConvolutionShader() {
    this(DEFAULT_CONVOLUTION_KERNEL);
  }

  public GlThreex3ConvolutionShader(final float[] convolutionKernel) {
    super(FRAGMENT_SHADER);
    mConvolutionKernel = convolutionKernel;
  }


  public float[] getConvolutionKernel() {
    return mConvolutionKernel;
  }

  public void setConvolutionKernel(final float[] convolutionKernel) {
    mConvolutionKernel = convolutionKernel;
  }

  @Override
  public void onDraw() {
    super.onDraw();
    glUniformMatrix3fv(getHandle("convolutionMatrix"), 1, false, mConvolutionKernel, 0);
  }

}




Java Source Code List

com.af.experiments.FxCameraApp.FilterAdapter.java
com.af.experiments.FxCameraApp.MyActivity.java
com.af.experiments.FxCameraApp.Utils.BitmapFactoryUtils.java
com.af.experiments.FxCameraApp.Utils.ExifUtils.java
com.af.experiments.FxCameraApp.Utils.Fps.java
com.af.experiments.FxCameraApp.Utils.LogWriter.java
com.af.experiments.FxCameraApp.Utils.OpenGlUtils.java
com.af.experiments.FxCameraApp.View.CameraView.java
com.af.experiments.FxCameraApp.View.DefaultPreview.java
com.af.experiments.FxCameraApp.View.GlPreview.java
com.af.experiments.FxCameraApp.View.PreviewTexture.java
com.af.experiments.FxCameraApp.camera.CameraHelperBase.java
com.af.experiments.FxCameraApp.camera.CameraHelperCupcake.java
com.af.experiments.FxCameraApp.camera.CameraHelperDonut.java
com.af.experiments.FxCameraApp.camera.CameraHelperEclair.java
com.af.experiments.FxCameraApp.camera.CameraHelperFactory.java
com.af.experiments.FxCameraApp.camera.CameraHelperFroyo.java
com.af.experiments.FxCameraApp.camera.CameraHelperGingerbread.java
com.af.experiments.FxCameraApp.camera.CameraHelperHonycomb.java
com.af.experiments.FxCameraApp.camera.CameraHelperICS.java
com.af.experiments.FxCameraApp.camera.CameraHelper.java
com.af.experiments.FxCameraApp.display.DisplayHelperBase.java
com.af.experiments.FxCameraApp.display.DisplayHelperFactory.java
com.af.experiments.FxCameraApp.display.DisplayHelperFroyo.java
com.af.experiments.FxCameraApp.display.DisplayHelperHoneycombMR2.java
com.af.experiments.FxCameraApp.display.DisplayHelperHoneycomb.java
com.af.experiments.FxCameraApp.display.DisplayHelper.java
com.af.experiments.FxCameraApp.ogles.DefaultConfigChooser.java
com.af.experiments.FxCameraApp.ogles.DefaultContextFactory.java
com.af.experiments.FxCameraApp.ogles.DefaultWindowSurfaceFactory.java
com.af.experiments.FxCameraApp.ogles.EGLLogWrapper.java
com.af.experiments.FxCameraApp.ogles.GLES20ConfigChooser.java
com.af.experiments.FxCameraApp.ogles.GLES20ContextFactory.java
com.af.experiments.FxCameraApp.ogles.GlImageBitmapTexture.java
com.af.experiments.FxCameraApp.ogles.GlImageResourceTexture.java
com.af.experiments.FxCameraApp.ogles.GlImageTexture.java
com.af.experiments.FxCameraApp.ogles.GlPreviewTextureFactory.java
com.af.experiments.FxCameraApp.ogles.GlSurfaceTexture.java
com.af.experiments.FxCameraApp.ogles.GlTextureView.java
com.af.experiments.FxCameraApp.ogles.PixelBuffer.java
com.af.experiments.FxCameraApp.ogles.PreviewSurfaceHelperBase.java
com.af.experiments.FxCameraApp.ogles.PreviewSurfaceHelperFactory.java
com.af.experiments.FxCameraApp.ogles.PreviewSurfaceHelper.java
com.af.experiments.FxCameraApp.ogles.Texture.java
com.af.experiments.FxCameraApp.renderer.GLES20FramebufferObject.java
com.af.experiments.FxCameraApp.renderer.GlFrameBufferObjectRenderer.java
com.af.experiments.FxCameraApp.renderer.MainRenderer.java
com.af.experiments.FxCameraApp.shaders.GlBilateralShader.java
com.af.experiments.FxCameraApp.shaders.GlBoxBlurShader.java
com.af.experiments.FxCameraApp.shaders.GlBulgeDistortionShader.java
com.af.experiments.FxCameraApp.shaders.GlCGAColorspaceShader.java
com.af.experiments.FxCameraApp.shaders.GlColorInvertShader.java
com.af.experiments.FxCameraApp.shaders.GlColorMatrixShader.java
com.af.experiments.FxCameraApp.shaders.GlColorPackingShader.java
com.af.experiments.FxCameraApp.shaders.GlConvolutionShader.java
com.af.experiments.FxCameraApp.shaders.GlEmbossShader.java
com.af.experiments.FxCameraApp.shaders.GlFalseColorShader.java
com.af.experiments.FxCameraApp.shaders.GlFastBlurShader.java
com.af.experiments.FxCameraApp.shaders.GlGaussianBlurShader.java
com.af.experiments.FxCameraApp.shaders.GlGlassSphereShader.java
com.af.experiments.FxCameraApp.shaders.GlGrayScaleShader.java
com.af.experiments.FxCameraApp.shaders.GlHarrisCornerDetectionShader.java
com.af.experiments.FxCameraApp.shaders.GlHazeShader.java
com.af.experiments.FxCameraApp.shaders.GlMonochromeShader.java
com.af.experiments.FxCameraApp.shaders.GlNobleCornerDetectionShader.java
com.af.experiments.FxCameraApp.shaders.GlPerlinNoiseShader.java
com.af.experiments.FxCameraApp.shaders.GlPinchDistortionShader.java
com.af.experiments.FxCameraApp.shaders.GlPixellateShader.java
com.af.experiments.FxCameraApp.shaders.GlPolarPixellateShader.java
com.af.experiments.FxCameraApp.shaders.GlPolkaDotShader.java
com.af.experiments.FxCameraApp.shaders.GlPosterizeShader.java
com.af.experiments.FxCameraApp.shaders.GlPreviewShader.java
com.af.experiments.FxCameraApp.shaders.GlSepiaShader.java
com.af.experiments.FxCameraApp.shaders.GlShaderGroup.java
com.af.experiments.FxCameraApp.shaders.GlShader.java
com.af.experiments.FxCameraApp.shaders.GlSharpenShader.java
com.af.experiments.FxCameraApp.shaders.GlShiTomasiFeatureDetectionShader.java
com.af.experiments.FxCameraApp.shaders.GlSobelEdgeDetectionShader.java
com.af.experiments.FxCameraApp.shaders.GlSphereRefractionShader.java
com.af.experiments.FxCameraApp.shaders.GlStretchDistortionShader.java
com.af.experiments.FxCameraApp.shaders.GlThreex3ConvolutionShader.java
com.af.experiments.FxCameraApp.shaders.GlThreex3TextureSamplingShader.java
com.af.experiments.FxCameraApp.shaders.GlToneShader.java
com.af.experiments.FxCameraApp.shaders.GlTwoInputShader.java
com.af.experiments.FxCameraApp.shaders.GlVignetteShader.java
com.af.experiments.FxCameraApp.shaders.GlWeakPixelInclusionShader.java
com.af.experiments.FxCameraApp.shaders.GlWhiteBalanceShader.java
com.af.experiments.FxCameraApp.shaders.GlXRayShader.java
com.af.experiments.FxCameraApp.shaders.GlXYDerivativeShader.java
com.af.experiments.FxCameraApp.shaders.fx.GlLutShader.java