1 /* $NetBSD: amdgpu_rc_calc.c,v 1.2 2021/12/18 23:45:04 riastradh Exp $ */ 2 3 4 /* 5 * Copyright 2017 Advanced Micro Devices, Inc. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included in 15 * all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 23 * OTHER DEALINGS IN THE SOFTWARE. 24 * 25 * Authors: AMD 26 * 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: amdgpu_rc_calc.c,v 1.2 2021/12/18 23:45:04 riastradh Exp $"); 31 32 #include "os_types.h" 33 #include "rc_calc.h" 34 #include "qp_tables.h" 35 36 #define table_hash(mode, bpc, max_min) ((mode << 16) | (bpc << 8) | max_min) 37 38 #define MODE_SELECT(val444, val422, val420) \ 39 (cm == CM_444 || cm == CM_RGB) ? (val444) : (cm == CM_422 ? (val422) : (val420)) 40 41 42 #define TABLE_CASE(mode, bpc, max) case (table_hash(mode, BPC_##bpc, max)): \ 43 table = qp_table_##mode##_##bpc##bpc_##max; \ 44 table_size = sizeof(qp_table_##mode##_##bpc##bpc_##max)/sizeof(*qp_table_##mode##_##bpc##bpc_##max); \ 45 break 46 47 48 void get_qp_set(qp_set qps, enum colour_mode cm, enum bits_per_comp bpc, enum max_min max_min, float bpp) 49 { 50 int mode = MODE_SELECT(444, 422, 420); 51 int sel = table_hash(mode, bpc, max_min); 52 int table_size = 0; 53 int index; 54 const struct qp_entry *table = 0L; 55 56 // alias enum 57 enum { min = MM_MIN, max = MM_MAX }; 58 switch (sel) { 59 TABLE_CASE(444, 8, max); 60 TABLE_CASE(444, 8, min); 61 TABLE_CASE(444, 10, max); 62 TABLE_CASE(444, 10, min); 63 TABLE_CASE(444, 12, max); 64 TABLE_CASE(444, 12, min); 65 TABLE_CASE(422, 8, max); 66 TABLE_CASE(422, 8, min); 67 TABLE_CASE(422, 10, max); 68 TABLE_CASE(422, 10, min); 69 TABLE_CASE(422, 12, max); 70 TABLE_CASE(422, 12, min); 71 TABLE_CASE(420, 8, max); 72 TABLE_CASE(420, 8, min); 73 TABLE_CASE(420, 10, max); 74 TABLE_CASE(420, 10, min); 75 TABLE_CASE(420, 12, max); 76 TABLE_CASE(420, 12, min); 77 } 78 79 if (table == 0) 80 return; 81 82 index = (bpp - table[0].bpp) * 2; 83 84 /* requested size is bigger than the table */ 85 if (index >= table_size) { 86 dm_error("ERROR: Requested rc_calc to find a bpp entry that exceeds the table size\n"); 87 return; 88 } 89 90 memcpy(qps, table[index].qps, sizeof(qp_set)); 91 } 92 93 double dsc_roundf(double num) 94 { 95 if (num < 0.0) 96 num = num - 0.5; 97 else 98 num = num + 0.5; 99 100 return (int)(num); 101 } 102 103 double dsc_ceil(double num) 104 { 105 double retval = (int)num; 106 107 if (retval != num && num > 0) 108 retval = num + 1; 109 110 return (int)retval; 111 } 112 113 void get_ofs_set(qp_set ofs, enum colour_mode mode, float bpp) 114 { 115 int *p = ofs; 116 117 if (mode == CM_444 || mode == CM_RGB) { 118 *p++ = (bpp <= 6) ? (0) : ((((bpp >= 8) && (bpp <= 12))) ? (2) : ((bpp >= 15) ? (10) : ((((bpp > 6) && (bpp < 8))) ? (0 + dsc_roundf((bpp - 6) * (2 / 2.0))) : (2 + dsc_roundf((bpp - 12) * (8 / 3.0)))))); 119 *p++ = (bpp <= 6) ? (-2) : ((((bpp >= 8) && (bpp <= 12))) ? (0) : ((bpp >= 15) ? (8) : ((((bpp > 6) && (bpp < 8))) ? (-2 + dsc_roundf((bpp - 6) * (2 / 2.0))) : (0 + dsc_roundf((bpp - 12) * (8 / 3.0)))))); 120 *p++ = (bpp <= 6) ? (-2) : ((((bpp >= 8) && (bpp <= 12))) ? (0) : ((bpp >= 15) ? (6) : ((((bpp > 6) && (bpp < 8))) ? (-2 + dsc_roundf((bpp - 6) * (2 / 2.0))) : (0 + dsc_roundf((bpp - 12) * (6 / 3.0)))))); 121 *p++ = (bpp <= 6) ? (-4) : ((((bpp >= 8) && (bpp <= 12))) ? (-2) : ((bpp >= 15) ? (4) : ((((bpp > 6) && (bpp < 8))) ? (-4 + dsc_roundf((bpp - 6) * (2 / 2.0))) : (-2 + dsc_roundf((bpp - 12) * (6 / 3.0)))))); 122 *p++ = (bpp <= 6) ? (-6) : ((((bpp >= 8) && (bpp <= 12))) ? (-4) : ((bpp >= 15) ? (2) : ((((bpp > 6) && (bpp < 8))) ? (-6 + dsc_roundf((bpp - 6) * (2 / 2.0))) : (-4 + dsc_roundf((bpp - 12) * (6 / 3.0)))))); 123 *p++ = (bpp <= 12) ? (-6) : ((bpp >= 15) ? (0) : (-6 + dsc_roundf((bpp - 12) * (6 / 3.0)))); 124 *p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-2) : (-8 + dsc_roundf((bpp - 12) * (6 / 3.0)))); 125 *p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-4) : (-8 + dsc_roundf((bpp - 12) * (4 / 3.0)))); 126 *p++ = (bpp <= 12) ? (-8) : ((bpp >= 15) ? (-6) : (-8 + dsc_roundf((bpp - 12) * (2 / 3.0)))); 127 *p++ = (bpp <= 12) ? (-10) : ((bpp >= 15) ? (-8) : (-10 + dsc_roundf((bpp - 12) * (2 / 3.0)))); 128 *p++ = -10; 129 *p++ = (bpp <= 6) ? (-12) : ((bpp >= 8) ? (-10) : (-12 + dsc_roundf((bpp - 6) * (2 / 2.0)))); 130 *p++ = -12; 131 *p++ = -12; 132 *p++ = -12; 133 } else if (mode == CM_422) { 134 *p++ = (bpp <= 8) ? (2) : ((bpp >= 10) ? (10) : (2 + dsc_roundf((bpp - 8) * (8 / 2.0)))); 135 *p++ = (bpp <= 8) ? (0) : ((bpp >= 10) ? (8) : (0 + dsc_roundf((bpp - 8) * (8 / 2.0)))); 136 *p++ = (bpp <= 8) ? (0) : ((bpp >= 10) ? (6) : (0 + dsc_roundf((bpp - 8) * (6 / 2.0)))); 137 *p++ = (bpp <= 8) ? (-2) : ((bpp >= 10) ? (4) : (-2 + dsc_roundf((bpp - 8) * (6 / 2.0)))); 138 *p++ = (bpp <= 8) ? (-4) : ((bpp >= 10) ? (2) : (-4 + dsc_roundf((bpp - 8) * (6 / 2.0)))); 139 *p++ = (bpp <= 8) ? (-6) : ((bpp >= 10) ? (0) : (-6 + dsc_roundf((bpp - 8) * (6 / 2.0)))); 140 *p++ = (bpp <= 8) ? (-8) : ((bpp >= 10) ? (-2) : (-8 + dsc_roundf((bpp - 8) * (6 / 2.0)))); 141 *p++ = (bpp <= 8) ? (-8) : ((bpp >= 10) ? (-4) : (-8 + dsc_roundf((bpp - 8) * (4 / 2.0)))); 142 *p++ = (bpp <= 8) ? (-8) : ((bpp >= 10) ? (-6) : (-8 + dsc_roundf((bpp - 8) * (2 / 2.0)))); 143 *p++ = (bpp <= 8) ? (-10) : ((bpp >= 10) ? (-8) : (-10 + dsc_roundf((bpp - 8) * (2 / 2.0)))); 144 *p++ = -10; 145 *p++ = (bpp <= 6) ? (-12) : ((bpp >= 7) ? (-10) : (-12 + dsc_roundf((bpp - 6) * (2.0 / 1)))); 146 *p++ = -12; 147 *p++ = -12; 148 *p++ = -12; 149 } else { 150 *p++ = (bpp <= 6) ? (2) : ((bpp >= 8) ? (10) : (2 + dsc_roundf((bpp - 6) * (8 / 2.0)))); 151 *p++ = (bpp <= 6) ? (0) : ((bpp >= 8) ? (8) : (0 + dsc_roundf((bpp - 6) * (8 / 2.0)))); 152 *p++ = (bpp <= 6) ? (0) : ((bpp >= 8) ? (6) : (0 + dsc_roundf((bpp - 6) * (6 / 2.0)))); 153 *p++ = (bpp <= 6) ? (-2) : ((bpp >= 8) ? (4) : (-2 + dsc_roundf((bpp - 6) * (6 / 2.0)))); 154 *p++ = (bpp <= 6) ? (-4) : ((bpp >= 8) ? (2) : (-4 + dsc_roundf((bpp - 6) * (6 / 2.0)))); 155 *p++ = (bpp <= 6) ? (-6) : ((bpp >= 8) ? (0) : (-6 + dsc_roundf((bpp - 6) * (6 / 2.0)))); 156 *p++ = (bpp <= 6) ? (-8) : ((bpp >= 8) ? (-2) : (-8 + dsc_roundf((bpp - 6) * (6 / 2.0)))); 157 *p++ = (bpp <= 6) ? (-8) : ((bpp >= 8) ? (-4) : (-8 + dsc_roundf((bpp - 6) * (4 / 2.0)))); 158 *p++ = (bpp <= 6) ? (-8) : ((bpp >= 8) ? (-6) : (-8 + dsc_roundf((bpp - 6) * (2 / 2.0)))); 159 *p++ = (bpp <= 6) ? (-10) : ((bpp >= 8) ? (-8) : (-10 + dsc_roundf((bpp - 6) * (2 / 2.0)))); 160 *p++ = -10; 161 *p++ = (bpp <= 4) ? (-12) : ((bpp >= 5) ? (-10) : (-12 + dsc_roundf((bpp - 4) * (2 / 1.0)))); 162 *p++ = -12; 163 *p++ = -12; 164 *p++ = -12; 165 } 166 } 167 168 int median3(int a, int b, int c) 169 { 170 if (a > b) 171 swap(a, b); 172 if (b > c) 173 swap(b, c); 174 if (a > b) 175 swap(b, c); 176 177 return b; 178 } 179 180 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) 181 { 182 float bpp_group; 183 float initial_xmit_delay_factor; 184 int padding_pixels; 185 int i; 186 187 rc->rc_quant_incr_limit0 = ((bpc == BPC_8) ? 11 : (bpc == BPC_10 ? 15 : 19)) - ((minor_version == 1 && cm == CM_444) ? 1 : 0); 188 rc->rc_quant_incr_limit1 = ((bpc == BPC_8) ? 11 : (bpc == BPC_10 ? 15 : 19)) - ((minor_version == 1 && cm == CM_444) ? 1 : 0); 189 190 bpp_group = MODE_SELECT(bpp, bpp * 2.0, bpp * 2.0); 191 192 switch (cm) { 193 case CM_420: 194 rc->initial_fullness_offset = (bpp >= 6) ? (2048) : ((bpp <= 4) ? (6144) : ((((bpp > 4) && (bpp <= 5))) ? (6144 - dsc_roundf((bpp - 4) * (512))) : (5632 - dsc_roundf((bpp - 5) * (3584))))); 195 rc->first_line_bpg_offset = median3(0, (12 + (int) (0.09 * min(34, slice_height - 8))), (int)((3 * bpc * 3) - (3 * bpp_group))); 196 rc->second_line_bpg_offset = median3(0, 12, (int)((3 * bpc * 3) - (3 * bpp_group))); 197 break; 198 case CM_422: 199 rc->initial_fullness_offset = (bpp >= 8) ? (2048) : ((bpp <= 7) ? (5632) : (5632 - dsc_roundf((bpp - 7) * (3584)))); 200 rc->first_line_bpg_offset = median3(0, (12 + (int) (0.09 * min(34, slice_height - 8))), (int)((3 * bpc * 4) - (3 * bpp_group))); 201 rc->second_line_bpg_offset = 0; 202 break; 203 case CM_444: 204 case CM_RGB: 205 rc->initial_fullness_offset = (bpp >= 12) ? (2048) : ((bpp <= 8) ? (6144) : ((((bpp > 8) && (bpp <= 10))) ? (6144 - dsc_roundf((bpp - 8) * (512 / 2))) : (5632 - dsc_roundf((bpp - 10) * (3584 / 2))))); 206 rc->first_line_bpg_offset = median3(0, (12 + (int) (0.09 * min(34, slice_height - 8))), (int)(((3 * bpc + (cm == CM_444 ? 0 : 2)) * 3) - (3 * bpp_group))); 207 rc->second_line_bpg_offset = 0; 208 break; 209 } 210 211 initial_xmit_delay_factor = (cm == CM_444 || cm == CM_RGB) ? 1.0 : 2.0; 212 rc->initial_xmit_delay = dsc_roundf(8192.0/2.0/bpp/initial_xmit_delay_factor); 213 214 if (cm == CM_422 || cm == CM_420) 215 slice_width /= 2; 216 217 padding_pixels = ((slice_width % 3) != 0) ? (3 - (slice_width % 3)) * (rc->initial_xmit_delay / slice_width) : 0; 218 if (3 * bpp_group >= (((rc->initial_xmit_delay + 2) / 3) * (3 + (cm == CM_422)))) { 219 if ((rc->initial_xmit_delay + padding_pixels) % 3 == 1) 220 rc->initial_xmit_delay++; 221 } 222 223 rc->flatness_min_qp = ((bpc == BPC_8) ? (3) : ((bpc == BPC_10) ? (7) : (11))) - ((minor_version == 1 && cm == CM_444) ? 1 : 0); 224 rc->flatness_max_qp = ((bpc == BPC_8) ? (12) : ((bpc == BPC_10) ? (16) : (20))) - ((minor_version == 1 && cm == CM_444) ? 1 : 0); 225 rc->flatness_det_thresh = 2 << (bpc - 8); 226 227 get_qp_set(rc->qp_min, cm, bpc, MM_MIN, bpp); 228 get_qp_set(rc->qp_max, cm, bpc, MM_MAX, bpp); 229 if (cm == CM_444 && minor_version == 1) { 230 for (i = 0; i < QP_SET_SIZE; ++i) { 231 rc->qp_min[i] = rc->qp_min[i] > 0 ? rc->qp_min[i] - 1 : 0; 232 rc->qp_max[i] = rc->qp_max[i] > 0 ? rc->qp_max[i] - 1 : 0; 233 } 234 } 235 get_ofs_set(rc->ofs, cm, bpp); 236 237 /* fixed parameters */ 238 rc->rc_model_size = 8192; 239 rc->rc_edge_factor = 6; 240 rc->rc_tgt_offset_hi = 3; 241 rc->rc_tgt_offset_lo = 3; 242 243 rc->rc_buf_thresh[0] = 896; 244 rc->rc_buf_thresh[1] = 1792; 245 rc->rc_buf_thresh[2] = 2688; 246 rc->rc_buf_thresh[3] = 3584; 247 rc->rc_buf_thresh[4] = 4480; 248 rc->rc_buf_thresh[5] = 5376; 249 rc->rc_buf_thresh[6] = 6272; 250 rc->rc_buf_thresh[7] = 6720; 251 rc->rc_buf_thresh[8] = 7168; 252 rc->rc_buf_thresh[9] = 7616; 253 rc->rc_buf_thresh[10] = 7744; 254 rc->rc_buf_thresh[11] = 7872; 255 rc->rc_buf_thresh[12] = 8000; 256 rc->rc_buf_thresh[13] = 8064; 257 } 258 259
Indexes created Mon Sep 22 13:09:51 GMT 2025