1/*
2 * Copyright 2021 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: AMD
23 *
24 */
25
26#ifndef __RC_CALC_FPU_H__
27#define __RC_CALC_FPU_H__
28
29#include "os_types.h"
30#include <drm/display/drm_dsc.h>
31
32#define QP_SET_SIZE 15
33
34typedef int qp_set[QP_SET_SIZE];
35
36struct rc_params {
37 int rc_quant_incr_limit0;
38 int rc_quant_incr_limit1;
39 int initial_fullness_offset;
40 int initial_xmit_delay;
41 int first_line_bpg_offset;
42 int second_line_bpg_offset;
43 int flatness_min_qp;
44 int flatness_max_qp;
45 int flatness_det_thresh;
46 qp_set qp_min;
47 qp_set qp_max;
48 qp_set ofs;
49 int rc_model_size;
50 int rc_edge_factor;
51 int rc_tgt_offset_hi;
52 int rc_tgt_offset_lo;
53 int rc_buf_thresh[QP_SET_SIZE - 1];
54};
55
56enum colour_mode {
57 CM_RGB, /* 444 RGB */
58 CM_444, /* 444 YUV or simple 422 */
59 CM_422, /* native 422 */
60 CM_420 /* native 420 */
61};
62
63enum bits_per_comp {
64 BPC_8 = 8,
65 BPC_10 = 10,
66 BPC_12 = 12
67};
68
69enum max_min {
70 DAL_MM_MIN = 0,
71 DAL_MM_MAX = 1
72};
73
74struct qp_entry {
75 float bpp;
76 const qp_set qps;
77};
78
79typedef struct qp_entry qp_table[];
80
81void _do_calc_rc_params(struct rc_params *rc,
82 enum colour_mode cm,
83 enum bits_per_comp bpc,
84 u16 drm_bpp,
85 bool is_navite_422_or_420,
86 int slice_width,
87 int slice_height,
88 int minor_version);
89
90#endif
91

source code of linux/drivers/gpu/drm/amd/display/dc/dml/dsc/rc_calc_fpu.h