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0001 /*
0002  * Copyright 2020 Advanced Micro Devices, Inc.
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  *
0022  * Authors: AMD
0023  *
0024  */
0025 
0026 #include "dm_services.h"
0027 #include "core_types.h"
0028 #include "reg_helper.h"
0029 #include "dcn30_dpp.h"
0030 #include "basics/conversion.h"
0031 #include "dcn30_cm_common.h"
0032 #include "custom_float.h"
0033 
0034 #define REG(reg) reg
0035 
0036 #define CTX \
0037     ctx //dpp->base.ctx
0038 
0039 #undef FN
0040 #define FN(reg_name, field_name) \
0041     reg->shifts.field_name, reg->masks.field_name
0042 
0043 void cm_helper_program_gamcor_xfer_func(
0044         struct dc_context *ctx,
0045         const struct pwl_params *params,
0046         const struct dcn3_xfer_func_reg *reg)
0047 {
0048     uint32_t reg_region_cur;
0049     unsigned int i = 0;
0050 
0051     REG_SET_2(reg->start_cntl_b, 0,
0052         exp_region_start, params->corner_points[0].blue.custom_float_x,
0053         exp_resion_start_segment, 0);
0054     REG_SET_2(reg->start_cntl_g, 0,
0055         exp_region_start, params->corner_points[0].green.custom_float_x,
0056         exp_resion_start_segment, 0);
0057     REG_SET_2(reg->start_cntl_r, 0,
0058         exp_region_start, params->corner_points[0].red.custom_float_x,
0059         exp_resion_start_segment, 0);
0060 
0061     REG_SET(reg->start_slope_cntl_b, 0, //linear slope at start of curve
0062         field_region_linear_slope, params->corner_points[0].blue.custom_float_slope);
0063     REG_SET(reg->start_slope_cntl_g, 0,
0064         field_region_linear_slope, params->corner_points[0].green.custom_float_slope);
0065     REG_SET(reg->start_slope_cntl_r, 0,
0066         field_region_linear_slope, params->corner_points[0].red.custom_float_slope);
0067 
0068     REG_SET(reg->start_end_cntl1_b, 0,
0069         field_region_end_base, params->corner_points[1].blue.custom_float_y);
0070     REG_SET(reg->start_end_cntl1_g, 0,
0071         field_region_end_base, params->corner_points[1].green.custom_float_y);
0072     REG_SET(reg->start_end_cntl1_r, 0,
0073         field_region_end_base, params->corner_points[1].red.custom_float_y);
0074 
0075     REG_SET_2(reg->start_end_cntl2_b, 0,
0076         field_region_end_slope, params->corner_points[1].blue.custom_float_slope,
0077         field_region_end, params->corner_points[1].blue.custom_float_x);
0078     REG_SET_2(reg->start_end_cntl2_g, 0,
0079         field_region_end_slope, params->corner_points[1].green.custom_float_slope,
0080         field_region_end, params->corner_points[1].green.custom_float_x);
0081     REG_SET_2(reg->start_end_cntl2_r, 0,
0082         field_region_end_slope, params->corner_points[1].red.custom_float_slope,
0083         field_region_end, params->corner_points[1].red.custom_float_x);
0084 
0085     for (reg_region_cur = reg->region_start;
0086         reg_region_cur <= reg->region_end;
0087         reg_region_cur++) {
0088 
0089         const struct gamma_curve *curve0 = &(params->arr_curve_points[2 * i]);
0090         const struct gamma_curve *curve1 = &(params->arr_curve_points[(2 * i) + 1]);
0091 
0092         REG_SET_4(reg_region_cur, 0,
0093             exp_region0_lut_offset, curve0->offset,
0094             exp_region0_num_segments, curve0->segments_num,
0095             exp_region1_lut_offset, curve1->offset,
0096             exp_region1_num_segments, curve1->segments_num);
0097 
0098         i++;
0099     }
0100 }
0101 
0102 /* driver uses 32 regions or less, but DCN HW has 34, extra 2 are set to 0 */
0103 #define MAX_REGIONS_NUMBER 34
0104 #define MAX_LOW_POINT      25
0105 #define NUMBER_REGIONS     32
0106 #define NUMBER_SW_SEGMENTS 16
0107 
0108 bool cm3_helper_translate_curve_to_hw_format(
0109                 const struct dc_transfer_func *output_tf,
0110                 struct pwl_params *lut_params, bool fixpoint)
0111 {
0112     struct curve_points3 *corner_points;
0113     struct pwl_result_data *rgb_resulted;
0114     struct pwl_result_data *rgb;
0115     struct pwl_result_data *rgb_plus_1;
0116     struct pwl_result_data *rgb_minus_1;
0117     struct fixed31_32 end_value;
0118 
0119     int32_t region_start, region_end;
0120     int32_t i;
0121     uint32_t j, k, seg_distr[MAX_REGIONS_NUMBER], increment, start_index, hw_points;
0122 
0123     if (output_tf == NULL || lut_params == NULL || output_tf->type == TF_TYPE_BYPASS)
0124         return false;
0125 
0126     corner_points = lut_params->corner_points;
0127     rgb_resulted = lut_params->rgb_resulted;
0128     hw_points = 0;
0129 
0130     memset(lut_params, 0, sizeof(struct pwl_params));
0131     memset(seg_distr, 0, sizeof(seg_distr));
0132 
0133     if (output_tf->tf == TRANSFER_FUNCTION_PQ || output_tf->tf == TRANSFER_FUNCTION_GAMMA22 ||
0134         output_tf->tf == TRANSFER_FUNCTION_HLG) {
0135         /* 32 segments
0136          * segments are from 2^-25 to 2^7
0137          */
0138         for (i = 0; i < NUMBER_REGIONS ; i++)
0139             seg_distr[i] = 3;
0140 
0141         region_start = -MAX_LOW_POINT;
0142         region_end   = NUMBER_REGIONS - MAX_LOW_POINT;
0143     } else {
0144         /* 11 segments
0145          * segment is from 2^-10 to 2^0
0146          * There are less than 256 points, for optimization
0147          */
0148         seg_distr[0] = 3;
0149         seg_distr[1] = 4;
0150         seg_distr[2] = 4;
0151         seg_distr[3] = 4;
0152         seg_distr[4] = 4;
0153         seg_distr[5] = 4;
0154         seg_distr[6] = 4;
0155         seg_distr[7] = 4;
0156         seg_distr[8] = 4;
0157         seg_distr[9] = 4;
0158         seg_distr[10] = 1;
0159 
0160         region_start = -10;
0161         region_end = 1;
0162     }
0163 
0164     for (i = region_end - region_start; i < MAX_REGIONS_NUMBER ; i++)
0165         seg_distr[i] = -1;
0166 
0167     for (k = 0; k < MAX_REGIONS_NUMBER; k++) {
0168         if (seg_distr[k] != -1)
0169             hw_points += (1 << seg_distr[k]);
0170     }
0171 
0172     j = 0;
0173     for (k = 0; k < (region_end - region_start); k++) {
0174         increment = NUMBER_SW_SEGMENTS / (1 << seg_distr[k]);
0175         start_index = (region_start + k + MAX_LOW_POINT) *
0176                 NUMBER_SW_SEGMENTS;
0177         for (i = start_index; i < start_index + NUMBER_SW_SEGMENTS;
0178                 i += increment) {
0179             if (j == hw_points - 1)
0180                 break;
0181             rgb_resulted[j].red = output_tf->tf_pts.red[i];
0182             rgb_resulted[j].green = output_tf->tf_pts.green[i];
0183             rgb_resulted[j].blue = output_tf->tf_pts.blue[i];
0184             j++;
0185         }
0186     }
0187 
0188     /* last point */
0189     start_index = (region_end + MAX_LOW_POINT) * NUMBER_SW_SEGMENTS;
0190     rgb_resulted[hw_points - 1].red = output_tf->tf_pts.red[start_index];
0191     rgb_resulted[hw_points - 1].green = output_tf->tf_pts.green[start_index];
0192     rgb_resulted[hw_points - 1].blue = output_tf->tf_pts.blue[start_index];
0193 
0194     rgb_resulted[hw_points].red = rgb_resulted[hw_points - 1].red;
0195     rgb_resulted[hw_points].green = rgb_resulted[hw_points - 1].green;
0196     rgb_resulted[hw_points].blue = rgb_resulted[hw_points - 1].blue;
0197 
0198     // All 3 color channels have same x
0199     corner_points[0].red.x = dc_fixpt_pow(dc_fixpt_from_int(2),
0200                          dc_fixpt_from_int(region_start));
0201     corner_points[0].green.x = corner_points[0].red.x;
0202     corner_points[0].blue.x = corner_points[0].red.x;
0203 
0204     corner_points[1].red.x = dc_fixpt_pow(dc_fixpt_from_int(2),
0205                          dc_fixpt_from_int(region_end));
0206     corner_points[1].green.x = corner_points[1].red.x;
0207     corner_points[1].blue.x = corner_points[1].red.x;
0208 
0209     corner_points[0].red.y = rgb_resulted[0].red;
0210     corner_points[0].green.y = rgb_resulted[0].green;
0211     corner_points[0].blue.y = rgb_resulted[0].blue;
0212 
0213     corner_points[0].red.slope = dc_fixpt_div(corner_points[0].red.y,
0214             corner_points[0].red.x);
0215     corner_points[0].green.slope = dc_fixpt_div(corner_points[0].green.y,
0216             corner_points[0].green.x);
0217     corner_points[0].blue.slope = dc_fixpt_div(corner_points[0].blue.y,
0218             corner_points[0].blue.x);
0219 
0220     /* see comment above, m_arrPoints[1].y should be the Y value for the
0221      * region end (m_numOfHwPoints), not last HW point(m_numOfHwPoints - 1)
0222      */
0223     corner_points[1].red.y = rgb_resulted[hw_points - 1].red;
0224     corner_points[1].green.y = rgb_resulted[hw_points - 1].green;
0225     corner_points[1].blue.y = rgb_resulted[hw_points - 1].blue;
0226     corner_points[1].red.slope = dc_fixpt_zero;
0227     corner_points[1].green.slope = dc_fixpt_zero;
0228     corner_points[1].blue.slope = dc_fixpt_zero;
0229 
0230     if (output_tf->tf == TRANSFER_FUNCTION_PQ || output_tf->tf == TRANSFER_FUNCTION_HLG) {
0231         /* for PQ/HLG, we want to have a straight line from last HW X point,
0232          * and the slope to be such that we hit 1.0 at 10000/1000 nits.
0233          */
0234 
0235         if (output_tf->tf == TRANSFER_FUNCTION_PQ)
0236             end_value = dc_fixpt_from_int(125);
0237         else
0238             end_value = dc_fixpt_from_fraction(125, 10);
0239 
0240         corner_points[1].red.slope = dc_fixpt_div(
0241             dc_fixpt_sub(dc_fixpt_one, corner_points[1].red.y),
0242             dc_fixpt_sub(end_value, corner_points[1].red.x));
0243         corner_points[1].green.slope = dc_fixpt_div(
0244             dc_fixpt_sub(dc_fixpt_one, corner_points[1].green.y),
0245             dc_fixpt_sub(end_value, corner_points[1].green.x));
0246         corner_points[1].blue.slope = dc_fixpt_div(
0247             dc_fixpt_sub(dc_fixpt_one, corner_points[1].blue.y),
0248             dc_fixpt_sub(end_value, corner_points[1].blue.x));
0249     }
0250     lut_params->hw_points_num = hw_points;
0251 
0252     k = 0;
0253     for (i = 1; i < MAX_REGIONS_NUMBER; i++) {
0254         if (seg_distr[k] != -1) {
0255             lut_params->arr_curve_points[k].segments_num =
0256                     seg_distr[k];
0257             lut_params->arr_curve_points[i].offset =
0258                     lut_params->arr_curve_points[k].offset + (1 << seg_distr[k]);
0259         }
0260         k++;
0261     }
0262 
0263     if (seg_distr[k] != -1)
0264         lut_params->arr_curve_points[k].segments_num = seg_distr[k];
0265 
0266     rgb = rgb_resulted;
0267     rgb_plus_1 = rgb_resulted + 1;
0268     rgb_minus_1 = rgb;
0269 
0270     i = 1;
0271     while (i != hw_points + 1) {
0272         if (i >= hw_points - 1) {
0273             if (dc_fixpt_lt(rgb_plus_1->red, rgb->red))
0274                 rgb_plus_1->red = dc_fixpt_add(rgb->red, rgb_minus_1->delta_red);
0275             if (dc_fixpt_lt(rgb_plus_1->green, rgb->green))
0276                 rgb_plus_1->green = dc_fixpt_add(rgb->green, rgb_minus_1->delta_green);
0277             if (dc_fixpt_lt(rgb_plus_1->blue, rgb->blue))
0278                 rgb_plus_1->blue = dc_fixpt_add(rgb->blue, rgb_minus_1->delta_blue);
0279         }
0280 
0281         rgb->delta_red   = dc_fixpt_sub(rgb_plus_1->red,   rgb->red);
0282         rgb->delta_green = dc_fixpt_sub(rgb_plus_1->green, rgb->green);
0283         rgb->delta_blue  = dc_fixpt_sub(rgb_plus_1->blue,  rgb->blue);
0284 
0285         if (fixpoint == true) {
0286             rgb->delta_red_reg   = dc_fixpt_clamp_u0d10(rgb->delta_red);
0287             rgb->delta_green_reg = dc_fixpt_clamp_u0d10(rgb->delta_green);
0288             rgb->delta_blue_reg  = dc_fixpt_clamp_u0d10(rgb->delta_blue);
0289             rgb->red_reg         = dc_fixpt_clamp_u0d14(rgb->red);
0290             rgb->green_reg       = dc_fixpt_clamp_u0d14(rgb->green);
0291             rgb->blue_reg        = dc_fixpt_clamp_u0d14(rgb->blue);
0292         }
0293 
0294         ++rgb_plus_1;
0295         rgb_minus_1 = rgb;
0296         ++rgb;
0297         ++i;
0298     }
0299     cm3_helper_convert_to_custom_float(rgb_resulted,
0300                         lut_params->corner_points,
0301                         hw_points, fixpoint);
0302 
0303     return true;
0304 }
0305 
0306 #define NUM_DEGAMMA_REGIONS    12
0307 
0308 
0309 bool cm3_helper_translate_curve_to_degamma_hw_format(
0310                 const struct dc_transfer_func *output_tf,
0311                 struct pwl_params *lut_params)
0312 {
0313     struct curve_points3 *corner_points;
0314     struct pwl_result_data *rgb_resulted;
0315     struct pwl_result_data *rgb;
0316     struct pwl_result_data *rgb_plus_1;
0317 
0318     int32_t region_start, region_end;
0319     int32_t i;
0320     uint32_t j, k, seg_distr[MAX_REGIONS_NUMBER], increment, start_index, hw_points;
0321 
0322     if (output_tf == NULL || lut_params == NULL || output_tf->type == TF_TYPE_BYPASS)
0323         return false;
0324 
0325     corner_points = lut_params->corner_points;
0326     rgb_resulted = lut_params->rgb_resulted;
0327     hw_points = 0;
0328 
0329     memset(lut_params, 0, sizeof(struct pwl_params));
0330     memset(seg_distr, 0, sizeof(seg_distr));
0331 
0332     region_start = -NUM_DEGAMMA_REGIONS;
0333     region_end   = 0;
0334 
0335 
0336     for (i = region_end - region_start; i < MAX_REGIONS_NUMBER ; i++)
0337         seg_distr[i] = -1;
0338     /* 12 segments
0339      * segments are from 2^-12 to 0
0340      */
0341     for (i = 0; i < NUM_DEGAMMA_REGIONS ; i++)
0342         seg_distr[i] = 4;
0343 
0344     for (k = 0; k < MAX_REGIONS_NUMBER; k++) {
0345         if (seg_distr[k] != -1)
0346             hw_points += (1 << seg_distr[k]);
0347     }
0348 
0349     j = 0;
0350     for (k = 0; k < (region_end - region_start); k++) {
0351         increment = NUMBER_SW_SEGMENTS / (1 << seg_distr[k]);
0352         start_index = (region_start + k + MAX_LOW_POINT) *
0353                 NUMBER_SW_SEGMENTS;
0354         for (i = start_index; i < start_index + NUMBER_SW_SEGMENTS;
0355                 i += increment) {
0356             if (j == hw_points - 1)
0357                 break;
0358             rgb_resulted[j].red = output_tf->tf_pts.red[i];
0359             rgb_resulted[j].green = output_tf->tf_pts.green[i];
0360             rgb_resulted[j].blue = output_tf->tf_pts.blue[i];
0361             j++;
0362         }
0363     }
0364 
0365     /* last point */
0366     start_index = (region_end + MAX_LOW_POINT) * NUMBER_SW_SEGMENTS;
0367     rgb_resulted[hw_points - 1].red = output_tf->tf_pts.red[start_index];
0368     rgb_resulted[hw_points - 1].green = output_tf->tf_pts.green[start_index];
0369     rgb_resulted[hw_points - 1].blue = output_tf->tf_pts.blue[start_index];
0370 
0371     corner_points[0].red.x = dc_fixpt_pow(dc_fixpt_from_int(2),
0372                          dc_fixpt_from_int(region_start));
0373     corner_points[0].green.x = corner_points[0].red.x;
0374     corner_points[0].blue.x = corner_points[0].red.x;
0375     corner_points[1].red.x = dc_fixpt_pow(dc_fixpt_from_int(2),
0376                          dc_fixpt_from_int(region_end));
0377     corner_points[1].green.x = corner_points[1].red.x;
0378     corner_points[1].blue.x = corner_points[1].red.x;
0379 
0380     corner_points[0].red.y = rgb_resulted[0].red;
0381     corner_points[0].green.y = rgb_resulted[0].green;
0382     corner_points[0].blue.y = rgb_resulted[0].blue;
0383 
0384     /* see comment above, m_arrPoints[1].y should be the Y value for the
0385      * region end (m_numOfHwPoints), not last HW point(m_numOfHwPoints - 1)
0386      */
0387     corner_points[1].red.y = rgb_resulted[hw_points - 1].red;
0388     corner_points[1].green.y = rgb_resulted[hw_points - 1].green;
0389     corner_points[1].blue.y = rgb_resulted[hw_points - 1].blue;
0390     corner_points[1].red.slope = dc_fixpt_zero;
0391     corner_points[1].green.slope = dc_fixpt_zero;
0392     corner_points[1].blue.slope = dc_fixpt_zero;
0393 
0394     if (output_tf->tf == TRANSFER_FUNCTION_PQ) {
0395         /* for PQ, we want to have a straight line from last HW X point,
0396          * and the slope to be such that we hit 1.0 at 10000 nits.
0397          */
0398         const struct fixed31_32 end_value =
0399                 dc_fixpt_from_int(125);
0400 
0401         corner_points[1].red.slope = dc_fixpt_div(
0402             dc_fixpt_sub(dc_fixpt_one, corner_points[1].red.y),
0403             dc_fixpt_sub(end_value, corner_points[1].red.x));
0404         corner_points[1].green.slope = dc_fixpt_div(
0405             dc_fixpt_sub(dc_fixpt_one, corner_points[1].green.y),
0406             dc_fixpt_sub(end_value, corner_points[1].green.x));
0407         corner_points[1].blue.slope = dc_fixpt_div(
0408             dc_fixpt_sub(dc_fixpt_one, corner_points[1].blue.y),
0409             dc_fixpt_sub(end_value, corner_points[1].blue.x));
0410     }
0411 
0412     lut_params->hw_points_num = hw_points;
0413 
0414     k = 0;
0415     for (i = 1; i < MAX_REGIONS_NUMBER; i++) {
0416         if (seg_distr[k] != -1) {
0417             lut_params->arr_curve_points[k].segments_num =
0418                     seg_distr[k];
0419             lut_params->arr_curve_points[i].offset =
0420                     lut_params->arr_curve_points[k].offset + (1 << seg_distr[k]);
0421         }
0422         k++;
0423     }
0424 
0425     if (seg_distr[k] != -1)
0426         lut_params->arr_curve_points[k].segments_num = seg_distr[k];
0427 
0428     rgb = rgb_resulted;
0429     rgb_plus_1 = rgb_resulted + 1;
0430 
0431     i = 1;
0432     while (i != hw_points + 1) {
0433         if (dc_fixpt_lt(rgb_plus_1->red, rgb->red))
0434             rgb_plus_1->red = rgb->red;
0435         if (dc_fixpt_lt(rgb_plus_1->green, rgb->green))
0436             rgb_plus_1->green = rgb->green;
0437         if (dc_fixpt_lt(rgb_plus_1->blue, rgb->blue))
0438             rgb_plus_1->blue = rgb->blue;
0439 
0440         rgb->delta_red   = dc_fixpt_sub(rgb_plus_1->red,   rgb->red);
0441         rgb->delta_green = dc_fixpt_sub(rgb_plus_1->green, rgb->green);
0442         rgb->delta_blue  = dc_fixpt_sub(rgb_plus_1->blue,  rgb->blue);
0443 
0444         ++rgb_plus_1;
0445         ++rgb;
0446         ++i;
0447     }
0448     cm3_helper_convert_to_custom_float(rgb_resulted,
0449                         lut_params->corner_points,
0450                         hw_points, false);
0451 
0452     return true;
0453 }
0454 
0455 bool cm3_helper_convert_to_custom_float(
0456         struct pwl_result_data *rgb_resulted,
0457         struct curve_points3 *corner_points,
0458         uint32_t hw_points_num,
0459         bool fixpoint)
0460 {
0461     struct custom_float_format fmt;
0462 
0463     struct pwl_result_data *rgb = rgb_resulted;
0464 
0465     uint32_t i = 0;
0466 
0467     fmt.exponenta_bits = 6;
0468     fmt.mantissa_bits = 12;
0469     fmt.sign = false;
0470 
0471     /* corner_points[0] - beginning base, slope offset for R,G,B
0472      * corner_points[1] - end base, slope offset for R,G,B
0473      */
0474     if (!convert_to_custom_float_format(corner_points[0].red.x, &fmt,
0475                 &corner_points[0].red.custom_float_x)) {
0476         BREAK_TO_DEBUGGER();
0477         return false;
0478     }
0479     if (!convert_to_custom_float_format(corner_points[0].green.x, &fmt,
0480                 &corner_points[0].green.custom_float_x)) {
0481         BREAK_TO_DEBUGGER();
0482         return false;
0483     }
0484     if (!convert_to_custom_float_format(corner_points[0].blue.x, &fmt,
0485                 &corner_points[0].blue.custom_float_x)) {
0486         BREAK_TO_DEBUGGER();
0487         return false;
0488     }
0489 
0490     if (!convert_to_custom_float_format(corner_points[0].red.offset, &fmt,
0491                 &corner_points[0].red.custom_float_offset)) {
0492         BREAK_TO_DEBUGGER();
0493         return false;
0494     }
0495     if (!convert_to_custom_float_format(corner_points[0].green.offset, &fmt,
0496                 &corner_points[0].green.custom_float_offset)) {
0497         BREAK_TO_DEBUGGER();
0498         return false;
0499     }
0500     if (!convert_to_custom_float_format(corner_points[0].blue.offset, &fmt,
0501                 &corner_points[0].blue.custom_float_offset)) {
0502         BREAK_TO_DEBUGGER();
0503         return false;
0504     }
0505 
0506     if (!convert_to_custom_float_format(corner_points[0].red.slope, &fmt,
0507                 &corner_points[0].red.custom_float_slope)) {
0508         BREAK_TO_DEBUGGER();
0509         return false;
0510     }
0511     if (!convert_to_custom_float_format(corner_points[0].green.slope, &fmt,
0512                 &corner_points[0].green.custom_float_slope)) {
0513         BREAK_TO_DEBUGGER();
0514         return false;
0515     }
0516     if (!convert_to_custom_float_format(corner_points[0].blue.slope, &fmt,
0517                 &corner_points[0].blue.custom_float_slope)) {
0518         BREAK_TO_DEBUGGER();
0519         return false;
0520     }
0521 
0522     if (fixpoint == true) {
0523         corner_points[1].red.custom_float_y =
0524                 dc_fixpt_clamp_u0d14(corner_points[1].red.y);
0525         corner_points[1].green.custom_float_y =
0526                 dc_fixpt_clamp_u0d14(corner_points[1].green.y);
0527         corner_points[1].blue.custom_float_y =
0528                 dc_fixpt_clamp_u0d14(corner_points[1].blue.y);
0529     } else {
0530         if (!convert_to_custom_float_format(corner_points[1].red.y,
0531                 &fmt, &corner_points[1].red.custom_float_y)) {
0532             BREAK_TO_DEBUGGER();
0533             return false;
0534         }
0535         if (!convert_to_custom_float_format(corner_points[1].green.y,
0536                 &fmt, &corner_points[1].green.custom_float_y)) {
0537             BREAK_TO_DEBUGGER();
0538             return false;
0539         }
0540         if (!convert_to_custom_float_format(corner_points[1].blue.y,
0541                 &fmt, &corner_points[1].blue.custom_float_y)) {
0542             BREAK_TO_DEBUGGER();
0543             return false;
0544         }
0545     }
0546 
0547     fmt.mantissa_bits = 10;
0548     fmt.sign = false;
0549 
0550     if (!convert_to_custom_float_format(corner_points[1].red.x, &fmt,
0551                 &corner_points[1].red.custom_float_x)) {
0552         BREAK_TO_DEBUGGER();
0553         return false;
0554     }
0555     if (!convert_to_custom_float_format(corner_points[1].green.x, &fmt,
0556                 &corner_points[1].green.custom_float_x)) {
0557         BREAK_TO_DEBUGGER();
0558         return false;
0559     }
0560     if (!convert_to_custom_float_format(corner_points[1].blue.x, &fmt,
0561                 &corner_points[1].blue.custom_float_x)) {
0562         BREAK_TO_DEBUGGER();
0563         return false;
0564     }
0565 
0566     if (!convert_to_custom_float_format(corner_points[1].red.slope, &fmt,
0567                 &corner_points[1].red.custom_float_slope)) {
0568         BREAK_TO_DEBUGGER();
0569         return false;
0570     }
0571     if (!convert_to_custom_float_format(corner_points[1].green.slope, &fmt,
0572                 &corner_points[1].green.custom_float_slope)) {
0573         BREAK_TO_DEBUGGER();
0574         return false;
0575     }
0576     if (!convert_to_custom_float_format(corner_points[1].blue.slope, &fmt,
0577                 &corner_points[1].blue.custom_float_slope)) {
0578         BREAK_TO_DEBUGGER();
0579         return false;
0580     }
0581 
0582     if (hw_points_num == 0 || rgb_resulted == NULL || fixpoint == true)
0583         return true;
0584 
0585     fmt.mantissa_bits = 12;
0586 
0587     while (i != hw_points_num) {
0588         if (!convert_to_custom_float_format(rgb->red, &fmt,
0589                             &rgb->red_reg)) {
0590             BREAK_TO_DEBUGGER();
0591             return false;
0592         }
0593 
0594         if (!convert_to_custom_float_format(rgb->green, &fmt,
0595                             &rgb->green_reg)) {
0596             BREAK_TO_DEBUGGER();
0597             return false;
0598         }
0599 
0600         if (!convert_to_custom_float_format(rgb->blue, &fmt,
0601                             &rgb->blue_reg)) {
0602             BREAK_TO_DEBUGGER();
0603             return false;
0604         }
0605 
0606         if (!convert_to_custom_float_format(rgb->delta_red, &fmt,
0607                             &rgb->delta_red_reg)) {
0608             BREAK_TO_DEBUGGER();
0609             return false;
0610         }
0611 
0612         if (!convert_to_custom_float_format(rgb->delta_green, &fmt,
0613                             &rgb->delta_green_reg)) {
0614             BREAK_TO_DEBUGGER();
0615             return false;
0616         }
0617 
0618         if (!convert_to_custom_float_format(rgb->delta_blue, &fmt,
0619                             &rgb->delta_blue_reg)) {
0620             BREAK_TO_DEBUGGER();
0621             return false;
0622         }
0623 
0624         ++rgb;
0625         ++i;
0626     }
0627 
0628     return true;
0629 }
0630 
0631 bool is_rgb_equal(const struct pwl_result_data *rgb, uint32_t num)
0632 {
0633     uint32_t i;
0634     bool ret = true;
0635 
0636     for (i = 0 ; i < num; i++) {
0637         if (rgb[i].red_reg != rgb[i].green_reg ||
0638         rgb[i].blue_reg != rgb[i].red_reg  ||
0639         rgb[i].blue_reg != rgb[i].green_reg) {
0640             ret = false;
0641             break;
0642         }
0643     }
0644     return ret;
0645 }
0646
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