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1/*
2 * Copyright 2020 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#include "dm_services.h"
27#include "core_types.h"
28#include "reg_helper.h"
29#include "dcn30_dpp.h"
30#include "basics/conversion.h"
31#include "dcn30_cm_common.h"
32#include "custom_float.h"
33
34#define REG(reg) reg
35
36#define CTX \
37 ctx //dpp->base.ctx
38
39#undef FN
40#define FN(reg_name, field_name) \
41 reg->shifts.field_name, reg->masks.field_name
42
43void cm_helper_program_gamcor_xfer_func(
44 struct dc_context *ctx,
45 const struct pwl_params *params,
46 const struct dcn3_xfer_func_reg *reg)
47{
48 uint32_t reg_region_cur;
49 unsigned int i = 0;
50
51 REG_SET_2(reg->start_cntl_b, 0,
52 exp_region_start, params->corner_points[0].blue.custom_float_x,
53 exp_resion_start_segment, 0);
54 REG_SET_2(reg->start_cntl_g, 0,
55 exp_region_start, params->corner_points[0].green.custom_float_x,
56 exp_resion_start_segment, 0);
57 REG_SET_2(reg->start_cntl_r, 0,
58 exp_region_start, params->corner_points[0].red.custom_float_x,
59 exp_resion_start_segment, 0);
60
61 REG_SET(reg->start_slope_cntl_b, 0, //linear slope at start of curve
62 field_region_linear_slope, params->corner_points[0].blue.custom_float_slope);
63 REG_SET(reg->start_slope_cntl_g, 0,
64 field_region_linear_slope, params->corner_points[0].green.custom_float_slope);
65 REG_SET(reg->start_slope_cntl_r, 0,
66 field_region_linear_slope, params->corner_points[0].red.custom_float_slope);
67
68 REG_SET(reg->start_end_cntl1_b, 0,
69 field_region_end_base, params->corner_points[1].blue.custom_float_y);
70 REG_SET(reg->start_end_cntl1_g, 0,
71 field_region_end_base, params->corner_points[1].green.custom_float_y);
72 REG_SET(reg->start_end_cntl1_r, 0,
73 field_region_end_base, params->corner_points[1].red.custom_float_y);
74
75 REG_SET_2(reg->start_end_cntl2_b, 0,
76 field_region_end_slope, params->corner_points[1].blue.custom_float_slope,
77 field_region_end, params->corner_points[1].blue.custom_float_x);
78 REG_SET_2(reg->start_end_cntl2_g, 0,
79 field_region_end_slope, params->corner_points[1].green.custom_float_slope,
80 field_region_end, params->corner_points[1].green.custom_float_x);
81 REG_SET_2(reg->start_end_cntl2_r, 0,
82 field_region_end_slope, params->corner_points[1].red.custom_float_slope,
83 field_region_end, params->corner_points[1].red.custom_float_x);
84
85 for (reg_region_cur = reg->region_start;
86 reg_region_cur <= reg->region_end;
87 reg_region_cur++) {
88
89 const struct gamma_curve *curve0 = &(params->arr_curve_points[2 * i]);
90 const struct gamma_curve *curve1 = &(params->arr_curve_points[(2 * i) + 1]);
91
92 REG_SET_4(reg_region_cur, 0,
93 exp_region0_lut_offset, curve0->offset,
94 exp_region0_num_segments, curve0->segments_num,
95 exp_region1_lut_offset, curve1->offset,
96 exp_region1_num_segments, curve1->segments_num);
97
98 i++;
99 }
100}
101
102/* driver uses 32 regions or less, but DCN HW has 34, extra 2 are set to 0 */
103#define MAX_REGIONS_NUMBER 34
104#define MAX_LOW_POINT 25
105#define NUMBER_REGIONS 32
106#define NUMBER_SW_SEGMENTS 16
107
108bool cm3_helper_translate_curve_to_hw_format(
109 const struct dc_transfer_func *output_tf,
110 struct pwl_params *lut_params, bool fixpoint)
111{
112 struct curve_points3 *corner_points;
113 struct pwl_result_data *rgb_resulted;
114 struct pwl_result_data *rgb;
115 struct pwl_result_data *rgb_plus_1;
116 struct pwl_result_data *rgb_minus_1;
117
118 int32_t region_start, region_end;
119 int32_t i;
120 uint32_t j, k, seg_distr[MAX_REGIONS_NUMBER], increment, start_index, hw_points;
121
122 if (output_tf == NULL || lut_params == NULL || output_tf->type == TF_TYPE_BYPASS)
123 return false;
124
125 corner_points = lut_params->corner_points;
126 rgb_resulted = lut_params->rgb_resulted;
127 hw_points = 0;
128
129 memset(lut_params, 0, sizeof(struct pwl_params));
130 memset(seg_distr, 0, sizeof(seg_distr));
131
132 if (output_tf->tf == TRANSFER_FUNCTION_PQ || output_tf->tf == TRANSFER_FUNCTION_GAMMA22 ||
133 output_tf->tf == TRANSFER_FUNCTION_HLG) {
134 /* 32 segments
135 * segments are from 2^-25 to 2^7
136 */
137 for (i = 0; i < NUMBER_REGIONS ; i++)
138 seg_distr[i] = 3;
139
140 region_start = -MAX_LOW_POINT;
141 region_end = NUMBER_REGIONS - MAX_LOW_POINT;
142 } else {
143 /* 11 segments
144 * segment is from 2^-10 to 2^0
145 * There are less than 256 points, for optimization
146 */
147 seg_distr[0] = 3;
148 seg_distr[1] = 4;
149 seg_distr[2] = 4;
150 seg_distr[3] = 4;
151 seg_distr[4] = 4;
152 seg_distr[5] = 4;
153 seg_distr[6] = 4;
154 seg_distr[7] = 4;
155 seg_distr[8] = 4;
156 seg_distr[9] = 4;
157 seg_distr[10] = 1;
158
159 region_start = -10;
160 region_end = 1;
161 }
162
163 for (i = region_end - region_start; i < MAX_REGIONS_NUMBER ; i++)
164 seg_distr[i] = -1;
165
166 for (k = 0; k < MAX_REGIONS_NUMBER; k++) {
167 if (seg_distr[k] != -1)
168 hw_points += (1 << seg_distr[k]);
169 }
170
171 j = 0;
172 for (k = 0; k < (region_end - region_start); k++) {
173 increment = NUMBER_SW_SEGMENTS / (1 << seg_distr[k]);
174 start_index = (region_start + k + MAX_LOW_POINT) *
175 NUMBER_SW_SEGMENTS;
176 for (i = start_index; i < start_index + NUMBER_SW_SEGMENTS;
177 i += increment) {
178 if (j == hw_points)
179 break;
180 rgb_resulted[j].red = output_tf->tf_pts.red[i];
181 rgb_resulted[j].green = output_tf->tf_pts.green[i];
182 rgb_resulted[j].blue = output_tf->tf_pts.blue[i];
183 j++;
184 }
185 }
186
187 /* last point */
188 start_index = (region_end + MAX_LOW_POINT) * NUMBER_SW_SEGMENTS;
189 rgb_resulted[hw_points].red = output_tf->tf_pts.red[start_index];
190 rgb_resulted[hw_points].green = output_tf->tf_pts.green[start_index];
191 rgb_resulted[hw_points].blue = output_tf->tf_pts.blue[start_index];
192
193 rgb_resulted[hw_points+1].red = rgb_resulted[hw_points].red;
194 rgb_resulted[hw_points+1].green = rgb_resulted[hw_points].green;
195 rgb_resulted[hw_points+1].blue = rgb_resulted[hw_points].blue;
196
197 // All 3 color channels have same x
198 corner_points[0].red.x = dc_fixpt_pow(dc_fixpt_from_int(2),
199 dc_fixpt_from_int(region_start));
200 corner_points[0].green.x = corner_points[0].red.x;
201 corner_points[0].blue.x = corner_points[0].red.x;
202
203 corner_points[1].red.x = dc_fixpt_pow(dc_fixpt_from_int(2),
204 dc_fixpt_from_int(region_end));
205 corner_points[1].green.x = corner_points[1].red.x;
206 corner_points[1].blue.x = corner_points[1].red.x;
207
208 corner_points[0].red.y = rgb_resulted[0].red;
209 corner_points[0].green.y = rgb_resulted[0].green;
210 corner_points[0].blue.y = rgb_resulted[0].blue;
211
212 corner_points[0].red.slope = dc_fixpt_div(corner_points[0].red.y,
213 corner_points[0].red.x);
214 corner_points[0].green.slope = dc_fixpt_div(corner_points[0].green.y,
215 corner_points[0].green.x);
216 corner_points[0].blue.slope = dc_fixpt_div(corner_points[0].blue.y,
217 corner_points[0].blue.x);
218
219 /* see comment above, m_arrPoints[1].y should be the Y value for the
220 * region end (m_numOfHwPoints), not last HW point(m_numOfHwPoints - 1)
221 */
222 corner_points[1].red.y = rgb_resulted[hw_points].red;
223 corner_points[1].green.y = rgb_resulted[hw_points].green;
224 corner_points[1].blue.y = rgb_resulted[hw_points].blue;
225 corner_points[1].red.slope = dc_fixpt_zero;
226 corner_points[1].green.slope = dc_fixpt_zero;
227 corner_points[1].blue.slope = dc_fixpt_zero;
228
229 // DCN3+ have 257 pts in lieu of no separate slope registers
230 // Prior HW had 256 base+slope pairs
231 lut_params->hw_points_num = hw_points + 1;
232
233 k = 0;
234 for (i = 1; i < MAX_REGIONS_NUMBER; i++) {
235 if (seg_distr[k] != -1) {
236 lut_params->arr_curve_points[k].segments_num =
237 seg_distr[k];
238 lut_params->arr_curve_points[i].offset =
239 lut_params->arr_curve_points[k].offset + (1 << seg_distr[k]);
240 }
241 k++;
242 }
243
244 if (seg_distr[k] != -1)
245 lut_params->arr_curve_points[k].segments_num = seg_distr[k];
246
247 rgb = rgb_resulted;
248 rgb_plus_1 = rgb_resulted + 1;
249 rgb_minus_1 = rgb;
250
251 if (fixpoint == true) {
252 i = 1;
253 while (i != hw_points + 2) {
254 if (i >= hw_points) {
255 if (dc_fixpt_lt(rgb_plus_1->red, rgb->red))
256 rgb_plus_1->red = dc_fixpt_add(rgb->red,
257 rgb_minus_1->delta_red);
258 if (dc_fixpt_lt(rgb_plus_1->green, rgb->green))
259 rgb_plus_1->green = dc_fixpt_add(rgb->green,
260 rgb_minus_1->delta_green);
261 if (dc_fixpt_lt(rgb_plus_1->blue, rgb->blue))
262 rgb_plus_1->blue = dc_fixpt_add(rgb->blue,
263 rgb_minus_1->delta_blue);
264 }
265
266 rgb->delta_red_reg = dc_fixpt_clamp_u0d10(rgb->delta_red);
267 rgb->delta_green_reg = dc_fixpt_clamp_u0d10(rgb->delta_green);
268 rgb->delta_blue_reg = dc_fixpt_clamp_u0d10(rgb->delta_blue);
269 rgb->red_reg = dc_fixpt_clamp_u0d14(rgb->red);
270 rgb->green_reg = dc_fixpt_clamp_u0d14(rgb->green);
271 rgb->blue_reg = dc_fixpt_clamp_u0d14(rgb->blue);
272
273 ++rgb_plus_1;
274 rgb_minus_1 = rgb;
275 ++rgb;
276 ++i;
277 }
278 }
279 cm3_helper_convert_to_custom_float(rgb_resulted,
280 lut_params->corner_points,
281 hw_points+1, fixpoint);
282
283 return true;
284}
285
286#define NUM_DEGAMMA_REGIONS 12
287
288
289bool cm3_helper_translate_curve_to_degamma_hw_format(
290 const struct dc_transfer_func *output_tf,
291 struct pwl_params *lut_params)
292{
293 struct curve_points3 *corner_points;
294 struct pwl_result_data *rgb_resulted;
295 struct pwl_result_data *rgb;
296 struct pwl_result_data *rgb_plus_1;
297
298 int32_t region_start, region_end;
299 int32_t i;
300 uint32_t j, k, seg_distr[MAX_REGIONS_NUMBER], increment, start_index, hw_points;
301
302 if (output_tf == NULL || lut_params == NULL || output_tf->type == TF_TYPE_BYPASS)
303 return false;
304
305 corner_points = lut_params->corner_points;
306 rgb_resulted = lut_params->rgb_resulted;
307 hw_points = 0;
308
309 memset(lut_params, 0, sizeof(struct pwl_params));
310 memset(seg_distr, 0, sizeof(seg_distr));
311
312 region_start = -NUM_DEGAMMA_REGIONS;
313 region_end = 0;
314
315
316 for (i = region_end - region_start; i < MAX_REGIONS_NUMBER ; i++)
317 seg_distr[i] = -1;
318 /* 12 segments
319 * segments are from 2^-12 to 0
320 */
321 for (i = 0; i < NUM_DEGAMMA_REGIONS ; i++)
322 seg_distr[i] = 4;
323
324 for (k = 0; k < MAX_REGIONS_NUMBER; k++) {
325 if (seg_distr[k] != -1)
326 hw_points += (1 << seg_distr[k]);
327 }
328
329 j = 0;
330 for (k = 0; k < (region_end - region_start); k++) {
331 increment = NUMBER_SW_SEGMENTS / (1 << seg_distr[k]);
332 start_index = (region_start + k + MAX_LOW_POINT) *
333 NUMBER_SW_SEGMENTS;
334 for (i = start_index; i < start_index + NUMBER_SW_SEGMENTS;
335 i += increment) {
336 if (j == hw_points - 1)
337 break;
338 rgb_resulted[j].red = output_tf->tf_pts.red[i];
339 rgb_resulted[j].green = output_tf->tf_pts.green[i];
340 rgb_resulted[j].blue = output_tf->tf_pts.blue[i];
341 j++;
342 }
343 }
344
345 /* last point */
346 start_index = (region_end + MAX_LOW_POINT) * NUMBER_SW_SEGMENTS;
347 rgb_resulted[hw_points - 1].red = output_tf->tf_pts.red[start_index];
348 rgb_resulted[hw_points - 1].green = output_tf->tf_pts.green[start_index];
349 rgb_resulted[hw_points - 1].blue = output_tf->tf_pts.blue[start_index];
350
351 corner_points[0].red.x = dc_fixpt_pow(dc_fixpt_from_int(2),
352 dc_fixpt_from_int(region_start));
353 corner_points[0].green.x = corner_points[0].red.x;
354 corner_points[0].blue.x = corner_points[0].red.x;
355 corner_points[1].red.x = dc_fixpt_pow(dc_fixpt_from_int(2),
356 dc_fixpt_from_int(region_end));
357 corner_points[1].green.x = corner_points[1].red.x;
358 corner_points[1].blue.x = corner_points[1].red.x;
359
360 corner_points[0].red.y = rgb_resulted[0].red;
361 corner_points[0].green.y = rgb_resulted[0].green;
362 corner_points[0].blue.y = rgb_resulted[0].blue;
363
364 /* see comment above, m_arrPoints[1].y should be the Y value for the
365 * region end (m_numOfHwPoints), not last HW point(m_numOfHwPoints - 1)
366 */
367 corner_points[1].red.y = rgb_resulted[hw_points - 1].red;
368 corner_points[1].green.y = rgb_resulted[hw_points - 1].green;
369 corner_points[1].blue.y = rgb_resulted[hw_points - 1].blue;
370 corner_points[1].red.slope = dc_fixpt_zero;
371 corner_points[1].green.slope = dc_fixpt_zero;
372 corner_points[1].blue.slope = dc_fixpt_zero;
373
374 if (output_tf->tf == TRANSFER_FUNCTION_PQ) {
375 /* for PQ, we want to have a straight line from last HW X point,
376 * and the slope to be such that we hit 1.0 at 10000 nits.
377 */
378 const struct fixed31_32 end_value =
379 dc_fixpt_from_int(125);
380
381 corner_points[1].red.slope = dc_fixpt_div(
382 dc_fixpt_sub(dc_fixpt_one, corner_points[1].red.y),
383 dc_fixpt_sub(end_value, corner_points[1].red.x));
384 corner_points[1].green.slope = dc_fixpt_div(
385 dc_fixpt_sub(dc_fixpt_one, corner_points[1].green.y),
386 dc_fixpt_sub(end_value, corner_points[1].green.x));
387 corner_points[1].blue.slope = dc_fixpt_div(
388 dc_fixpt_sub(dc_fixpt_one, corner_points[1].blue.y),
389 dc_fixpt_sub(end_value, corner_points[1].blue.x));
390 }
391
392 lut_params->hw_points_num = hw_points;
393
394 k = 0;
395 for (i = 1; i < MAX_REGIONS_NUMBER; i++) {
396 if (seg_distr[k] != -1) {
397 lut_params->arr_curve_points[k].segments_num =
398 seg_distr[k];
399 lut_params->arr_curve_points[i].offset =
400 lut_params->arr_curve_points[k].offset + (1 << seg_distr[k]);
401 }
402 k++;
403 }
404
405 if (seg_distr[k] != -1)
406 lut_params->arr_curve_points[k].segments_num = seg_distr[k];
407
408 rgb = rgb_resulted;
409 rgb_plus_1 = rgb_resulted + 1;
410
411 i = 1;
412 while (i != hw_points + 1) {
413 if (dc_fixpt_lt(rgb_plus_1->red, rgb->red))
414 rgb_plus_1->red = rgb->red;
415 if (dc_fixpt_lt(rgb_plus_1->green, rgb->green))
416 rgb_plus_1->green = rgb->green;
417 if (dc_fixpt_lt(rgb_plus_1->blue, rgb->blue))
418 rgb_plus_1->blue = rgb->blue;
419
420 rgb->delta_red = dc_fixpt_sub(rgb_plus_1->red, rgb->red);
421 rgb->delta_green = dc_fixpt_sub(rgb_plus_1->green, rgb->green);
422 rgb->delta_blue = dc_fixpt_sub(rgb_plus_1->blue, rgb->blue);
423
424 ++rgb_plus_1;
425 ++rgb;
426 ++i;
427 }
428 cm3_helper_convert_to_custom_float(rgb_resulted,
429 lut_params->corner_points,
430 hw_points, false);
431
432 return true;
433}
434
435bool cm3_helper_convert_to_custom_float(
436 struct pwl_result_data *rgb_resulted,
437 struct curve_points3 *corner_points,
438 uint32_t hw_points_num,
439 bool fixpoint)
440{
441 struct custom_float_format fmt;
442
443 struct pwl_result_data *rgb = rgb_resulted;
444
445 uint32_t i = 0;
446
447 fmt.exponenta_bits = 6;
448 fmt.mantissa_bits = 12;
449 fmt.sign = false;
450
451 /* corner_points[0] - beginning base, slope offset for R,G,B
452 * corner_points[1] - end base, slope offset for R,G,B
453 */
454 if (!convert_to_custom_float_format(corner_points[0].red.x, &fmt,
455 &corner_points[0].red.custom_float_x)) {
456 BREAK_TO_DEBUGGER();
457 return false;
458 }
459 if (!convert_to_custom_float_format(corner_points[0].green.x, &fmt,
460 &corner_points[0].green.custom_float_x)) {
461 BREAK_TO_DEBUGGER();
462 return false;
463 }
464 if (!convert_to_custom_float_format(corner_points[0].blue.x, &fmt,
465 &corner_points[0].blue.custom_float_x)) {
466 BREAK_TO_DEBUGGER();
467 return false;
468 }
469
470 if (!convert_to_custom_float_format(corner_points[0].red.offset, &fmt,
471 &corner_points[0].red.custom_float_offset)) {
472 BREAK_TO_DEBUGGER();
473 return false;
474 }
475 if (!convert_to_custom_float_format(corner_points[0].green.offset, &fmt,
476 &corner_points[0].green.custom_float_offset)) {
477 BREAK_TO_DEBUGGER();
478 return false;
479 }
480 if (!convert_to_custom_float_format(corner_points[0].blue.offset, &fmt,
481 &corner_points[0].blue.custom_float_offset)) {
482 BREAK_TO_DEBUGGER();
483 return false;
484 }
485
486 if (!convert_to_custom_float_format(corner_points[0].red.slope, &fmt,
487 &corner_points[0].red.custom_float_slope)) {
488 BREAK_TO_DEBUGGER();
489 return false;
490 }
491 if (!convert_to_custom_float_format(corner_points[0].green.slope, &fmt,
492 &corner_points[0].green.custom_float_slope)) {
493 BREAK_TO_DEBUGGER();
494 return false;
495 }
496 if (!convert_to_custom_float_format(corner_points[0].blue.slope, &fmt,
497 &corner_points[0].blue.custom_float_slope)) {
498 BREAK_TO_DEBUGGER();
499 return false;
500 }
501
502 if (fixpoint == true) {
503 corner_points[1].red.custom_float_y =
504 dc_fixpt_clamp_u0d14(corner_points[1].red.y);
505 corner_points[1].green.custom_float_y =
506 dc_fixpt_clamp_u0d14(corner_points[1].green.y);
507 corner_points[1].blue.custom_float_y =
508 dc_fixpt_clamp_u0d14(corner_points[1].blue.y);
509 } else {
510 if (!convert_to_custom_float_format(corner_points[1].red.y,
511 &fmt, &corner_points[1].red.custom_float_y)) {
512 BREAK_TO_DEBUGGER();
513 return false;
514 }
515 if (!convert_to_custom_float_format(corner_points[1].green.y,
516 &fmt, &corner_points[1].green.custom_float_y)) {
517 BREAK_TO_DEBUGGER();
518 return false;
519 }
520 if (!convert_to_custom_float_format(corner_points[1].blue.y,
521 &fmt, &corner_points[1].blue.custom_float_y)) {
522 BREAK_TO_DEBUGGER();
523 return false;
524 }
525 }
526
527 fmt.mantissa_bits = 10;
528 fmt.sign = false;
529
530 if (!convert_to_custom_float_format(corner_points[1].red.x, &fmt,
531 &corner_points[1].red.custom_float_x)) {
532 BREAK_TO_DEBUGGER();
533 return false;
534 }
535 if (!convert_to_custom_float_format(corner_points[1].green.x, &fmt,
536 &corner_points[1].green.custom_float_x)) {
537 BREAK_TO_DEBUGGER();
538 return false;
539 }
540 if (!convert_to_custom_float_format(corner_points[1].blue.x, &fmt,
541 &corner_points[1].blue.custom_float_x)) {
542 BREAK_TO_DEBUGGER();
543 return false;
544 }
545
546 if (!convert_to_custom_float_format(corner_points[1].red.slope, &fmt,
547 &corner_points[1].red.custom_float_slope)) {
548 BREAK_TO_DEBUGGER();
549 return false;
550 }
551 if (!convert_to_custom_float_format(corner_points[1].green.slope, &fmt,
552 &corner_points[1].green.custom_float_slope)) {
553 BREAK_TO_DEBUGGER();
554 return false;
555 }
556 if (!convert_to_custom_float_format(corner_points[1].blue.slope, &fmt,
557 &corner_points[1].blue.custom_float_slope)) {
558 BREAK_TO_DEBUGGER();
559 return false;
560 }
561
562 if (hw_points_num == 0 || rgb_resulted == NULL || fixpoint == true)
563 return true;
564
565 fmt.mantissa_bits = 12;
566
567 while (i != hw_points_num) {
568 if (!convert_to_custom_float_format(rgb->red, &fmt,
569 &rgb->red_reg)) {
570 BREAK_TO_DEBUGGER();
571 return false;
572 }
573
574 if (!convert_to_custom_float_format(rgb->green, &fmt,
575 &rgb->green_reg)) {
576 BREAK_TO_DEBUGGER();
577 return false;
578 }
579
580 if (!convert_to_custom_float_format(rgb->blue, &fmt,
581 &rgb->blue_reg)) {
582 BREAK_TO_DEBUGGER();
583 return false;
584 }
585
586 ++rgb;
587 ++i;
588 }
589
590 return true;
591}
592
593bool is_rgb_equal(const struct pwl_result_data *rgb, uint32_t num)
594{
595 uint32_t i;
596 bool ret = true;
597
598 for (i = 0 ; i < num; i++) {
599 if (rgb[i].red_reg != rgb[i].green_reg ||
600 rgb[i].blue_reg != rgb[i].red_reg ||
601 rgb[i].blue_reg != rgb[i].green_reg) {
602 ret = false;
603 break;
604 }
605 }
606 return ret;
607}
608