opsin_params.h (788B)
1 // Copyright (c) the JPEG XL Project Authors. All rights reserved. 2 // 3 // Use of this source code is governed by a BSD-style 4 // license that can be found in the LICENSE file. 5 6 #ifndef LIB_JXL_OPSIN_PARAMS_H_ 7 #define LIB_JXL_OPSIN_PARAMS_H_ 8 9 // Constants that define the XYB color space. 10 11 #include "lib/jxl/base/compiler_specific.h" 12 #include "lib/jxl/base/matrix_ops.h" 13 14 namespace jxl { 15 16 // Returns 3x3 row-major matrix inverse of kOpsinAbsorbanceMatrix. 17 // opsin_image_test verifies this is actually the inverse. 18 const Matrix3x3& GetOpsinAbsorbanceInverseMatrix(); 19 20 void InitSIMDInverseMatrix(const Matrix3x3& inverse, 21 float* JXL_RESTRICT simd_inverse, 22 float intensity_target); 23 24 } // namespace jxl 25 26 #endif // LIB_JXL_OPSIN_PARAMS_H_