37 lines
1.9 KiB
Java
37 lines
1.9 KiB
Java
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package com.kofax.kmc.ken.engines.gpu.shaders;
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import android.opengl.GLES20;
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import com.kofax.kmc.ken.engines.gpu.OpenGLESContextManager;
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import com.kofax.kmc.ken.engines.gpu.OpenGlUtils;
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/* loaded from: classes3.dex */
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public class YuvToRgbShader extends SinglePassShader {
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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);}";
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protected int _uvTextureUniform;
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protected int _yTextureUniform;
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public YuvToRgbShader(OpenGLESContextManager openGLESContextManager) {
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super(openGLESContextManager);
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this._yTextureUniform = 0;
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this._uvTextureUniform = 0;
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}
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@Override // com.kofax.kmc.ken.engines.gpu.shaders.SinglePassShader
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public int getProgram() {
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if (this._program == 0) {
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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);
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this._yTextureUniform = GLES20.glGetUniformLocation(this._program, "y_inputImageTexture");
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this._uvTextureUniform = GLES20.glGetUniformLocation(this._program, "uv_inputImageTexture");
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}
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return this._program;
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}
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public int getYTextureUniform() {
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return this._yTextureUniform;
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}
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public int getUVTextureUniform() {
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return this._uvTextureUniform;
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}
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}
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