1 /* 2 * Copyright (c) 2015-2018, The Linux Foundation. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above 10 * copyright notice, this list of conditions and the following 11 * disclaimer in the documentation and/or other materials provided 12 * with the distribution. 13 * * Neither the name of The Linux Foundation nor the names of its 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 17 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #ifndef __DISP_COLOR_PROCESSING_H__ 31 #define __DISP_COLOR_PROCESSING_H__ 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 #define LUT3D_ENTRIES_SIZE (17 * 17 * 17) 38 39 struct rgb { 40 uint32_t r; 41 uint32_t g; 42 uint32_t b; 43 }; 44 45 struct rgb_entry { 46 struct rgb in; 47 struct rgb out; 48 }; 49 50 /* 51 struct lut3d_info 52 flags -- Reserved 53 lut3d_id -- Unique ID used to distinguish individual 3D Lut tables 54 uniform -- Identifies if coefficients are uniform (1) or non-uniform (0) 55 num_entries-- Identifies the number of lut values in the table 56 entries -- Table buffer holding the lut values. 57 58 All coefficients are expected to be tightly packed in the 59 structure, any unused buffer space shall exist at the end 60 of the buffer. 61 */ 62 struct lut3d_info { 63 uint32_t flags; 64 uint32_t lut3d_id; 65 uint32_t uniform; 66 uint32_t num_entries; 67 struct rgb_entry entries[LUT3D_ENTRIES_SIZE]; 68 }; 69 70 /* 71 struct lut1d_info 72 flags -- Reserved 73 bit_width -- Bit width of each entry 74 num_entries -- Identifies the number of lut values in the table 75 entries -- Table buffer holding the lut values 76 */ 77 #define LUT1D_ENTRIES_SIZE (256) 78 struct lut1d_info { 79 uint32_t flags; 80 uint32_t bit_width; 81 uint32_t strength; 82 uint32_t num_entries; 83 struct rgb entries[LUT1D_ENTRIES_SIZE]; 84 }; 85 86 #ifdef __cplusplus 87 } 88 #endif 89 #endif // __DISP_COLOR_PROCESSING_H__ 90