37 lines
1.9 KiB
Java
37 lines
1.9 KiB
Java
package com.kofax.kmc.ken.engines.gpu.shaders;
|
|
|
|
import android.opengl.GLES20;
|
|
import com.kofax.kmc.ken.engines.gpu.OpenGLESContextManager;
|
|
import com.kofax.kmc.ken.engines.gpu.OpenGlUtils;
|
|
|
|
/* loaded from: classes3.dex */
|
|
public class YuvToRgbShader extends SinglePassShader {
|
|
protected static final String FragmentShaderString = "precision highp float;varying vec2 textureCoordinate;uniform sampler2D y_inputImageTexture;uniform sampler2D uv_inputImageTexture;void main(){float r, g, b, y, u, v;y = texture2D(y_inputImageTexture, textureCoordinate).r;u = texture2D(uv_inputImageTexture, textureCoordinate).a - 0.5;v = texture2D(uv_inputImageTexture, textureCoordinate).r - 0.5;r = y + 1.13983 * v;g = y - 0.39465 * u - 0.58060 * v;b = y + 2.03211 * u;gl_FragColor = vec4(r, g, b, 1.0);}";
|
|
protected int _uvTextureUniform;
|
|
protected int _yTextureUniform;
|
|
|
|
public YuvToRgbShader(OpenGLESContextManager openGLESContextManager) {
|
|
super(openGLESContextManager);
|
|
this._yTextureUniform = 0;
|
|
this._uvTextureUniform = 0;
|
|
}
|
|
|
|
@Override // com.kofax.kmc.ken.engines.gpu.shaders.SinglePassShader
|
|
public int getProgram() {
|
|
if (this._program == 0) {
|
|
this._program = OpenGlUtils.loadProgram("attribute vec4 position;attribute vec4 inputTextureCoordinate;varying vec2 textureCoordinate;void main(){gl_Position = position;textureCoordinate = inputTextureCoordinate.xy;}", FragmentShaderString, new int[]{0, 1}, new String[]{"position", "inputTextureCoordinate"}, 2);
|
|
this._yTextureUniform = GLES20.glGetUniformLocation(this._program, "y_inputImageTexture");
|
|
this._uvTextureUniform = GLES20.glGetUniformLocation(this._program, "uv_inputImageTexture");
|
|
}
|
|
return this._program;
|
|
}
|
|
|
|
public int getYTextureUniform() {
|
|
return this._yTextureUniform;
|
|
}
|
|
|
|
public int getUVTextureUniform() {
|
|
return this._uvTextureUniform;
|
|
}
|
|
}
|