drivers/gpu/drm/amd/display/dc/dsc/rc_calc.h

   1
   2 /*
   3  * Copyright 2017 Advanced Micro Devices, Inc.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice shall be included in
  13  * all copies or substantial portions of the Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  19  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  20  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  21  * OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  * Authors: AMD
  24  *
  25  */
  26
  27 #ifndef __RC_CALC_H__
  28 #define __RC_CALC_H__
  29
  30
  31 #define QP_SET_SIZE 15
  32
  33 typedef int qp_set[QP_SET_SIZE];
  34
  35 struct rc_params {
  36         int      rc_quant_incr_limit0;
  37         int      rc_quant_incr_limit1;
  38         int      initial_fullness_offset;
  39         int      initial_xmit_delay;
  40         int      first_line_bpg_offset;
  41         int      second_line_bpg_offset;
  42         int      flatness_min_qp;
  43         int      flatness_max_qp;
  44         int      flatness_det_thresh;
  45         qp_set   qp_min;
  46         qp_set   qp_max;
  47         qp_set   ofs;
  48         int      rc_model_size;
  49         int      rc_edge_factor;
  50         int      rc_tgt_offset_hi;
  51         int      rc_tgt_offset_lo;
  52         int      rc_buf_thresh[QP_SET_SIZE - 1];
  53 };
  54
  55 enum colour_mode {
  56         CM_RGB,   /* 444 RGB */
  57         CM_444,   /* 444 YUV or simple 422 */
  58         CM_422,   /* native 422 */
  59         CM_420    /* native 420 */
  60 };
  61
  62 enum bits_per_comp {
  63         BPC_8  =  8,
  64         BPC_10 = 10,
  65         BPC_12 = 12
  66 };
  67
  68 enum max_min {
  69         MM_MIN = 0,
  70         MM_MAX = 1
  71 };
  72
  73 struct qp_entry {
  74         float         bpp;
  75         const qp_set  qps;
  76 };
  77
  78 typedef struct qp_entry qp_table[];
  79
  80 void calc_rc_params(struct rc_params *rc, enum colour_mode cm, enum bits_per_comp bpc, float bpp, int slice_width, int slice_height, int minor_version);
  81
  82 #endif
  83