82     fragBuilder->codeAppend("float red = 0.0, green = 0.0, blue = 0.0;");  in add_pixelxor_code()
92     fragBuilder->codeAppend("float modValue = 128.0;");  in add_pixelxor_code()
94     fragBuilder->codeAppend("for (int i = 0; i < 8; i++) {");  in add_pixelxor_code()
97     fragBuilder->codeAppend("red += modValue * bit;");  in add_pixelxor_code()
98     fragBuilder->codeAppend("src.r = mod(src.r, modValue);");  in add_pixelxor_code()
99     fragBuilder->codeAppend("dst.r = mod(dst.r, modValue);");  in add_pixelxor_code()
100     fragBuilder->codeAppend("op.r = mod(op.r, modValue);");  in add_pixelxor_code()
103     fragBuilder->codeAppend("green += modValue * bit;");  in add_pixelxor_code()
104     fragBuilder->codeAppend("src.g = mod(src.g, modValue);");  in add_pixelxor_code()
105     fragBuilder->codeAppend("dst.g = mod(dst.g, modValue);");  in add_pixelxor_code()
106     fragBuilder->codeAppend("op.g = mod(op.g, modValue);");  in add_pixelxor_code()
109     fragBuilder->codeAppend("blue += modValue * bit;");  in add_pixelxor_code()
110     fragBuilder->codeAppend("src.b = mod(src.b, modValue);");  in add_pixelxor_code()
111     fragBuilder->codeAppend("dst.b = mod(dst.b, modValue);");  in add_pixelxor_code()
112     fragBuilder->codeAppend("op.b = mod(op.b, modValue);");  in add_pixelxor_code()
114     fragBuilder->codeAppend("modValue /= 2.0;");  in add_pixelxor_code()
116     fragBuilder->codeAppend("}");  in add_pixelxor_code()