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/*
* Copyright 2015 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: AMD
*
*/
#include "dal_services.h"
#include "color_temperature.h"
static const struct white_point_entry white_point_table[] = {
/*001*/ { 1000, 6499, 3474 },
/*002*/ { 1100, 6361, 3594 },
/*003*/ { 1200, 6226, 3703 },
/*004*/ { 1300, 6095, 3801 },
/*005*/ { 1400, 5966, 3887 },
/*006*/ { 1500, 5841, 3962 },
/*007*/ { 1600, 5720, 4025 },
/*008*/ { 1700, 5601, 4076 },
/*009*/ { 1800, 5486, 4118 },
/*010*/ { 1900, 5375, 4150 },
/*011*/ { 2000, 5267, 4173 },
/*012*/ { 2100, 5162, 4188 },
/*013*/ { 2200, 5062, 4196 },
/*014*/ { 2300, 4965, 4198 },
/*015*/ { 2400, 4872, 4194 },
/*016*/ { 2500, 4782, 4186 },
/*017*/ { 2600, 4696, 4173 },
/*018*/ { 2700, 4614, 4158 },
/*019*/ { 2800, 4535, 4139 },
/*020*/ { 2900, 4460, 4118 },
/*021*/ { 3000, 4388, 4095 },
/*022*/ { 3100, 4320, 4070 },
/*023*/ { 3200, 4254, 4044 },
/*024*/ { 3300, 4192, 4018 },
/*025*/ { 3400, 4132, 3990 },
/*026*/ { 3500, 4075, 3962 },
/*027*/ { 3600, 4021, 3934 },
/*028*/ { 3700, 3969, 3905 },
/*029*/ { 3800, 3919, 3877 },
/*030*/ { 3900, 3872, 3849 },
/*031*/ { 4000, 3827, 3820 },
/*032*/ { 4100, 3784, 3793 },
/*033*/ { 4200, 3743, 3765 },
/*034*/ { 4300, 3704, 3738 },
/*035*/ { 4400, 3666, 3711 },
/*036*/ { 4500, 3631, 3685 },
/*037*/ { 4600, 3596, 3659 },
/*038*/ { 4700, 3563, 3634 },
/*039*/ { 4800, 3532, 3609 },
/*040*/ { 4900, 3502, 3585 },
/*041*/ { 5000, 3473, 3561 },
/*042*/ { 5100, 3446, 3538 },
/*043*/ { 5200, 3419, 3516 },
/*044*/ { 5300, 3394, 3494 },
/*045*/ { 5400, 3369, 3472 },
/*046*/ { 5500, 3346, 3451 },
/*047*/ { 5600, 3323, 3431 },
/*048*/ { 5700, 3302, 3411 },
/*049*/ { 5800, 3281, 3392 },
/*050*/ { 5900, 3261, 3373 },
/*051*/ { 6000, 3242, 3355 },
/*052*/ { 6100, 3223, 3337 },
/*053*/ { 6200, 3205, 3319 },
/*054*/ { 6300, 3188, 3302 },
/*055*/ { 6400, 3161, 3296 },
/*056*/ { 6500, 3127, 3290 },
/*057*/ { 6600, 3126, 3264 },
/*058*/ { 6700, 3125, 3238 },
/*059*/ { 6800, 3110, 3224 },
/*060*/ { 6900, 3097, 3209 },
/*061*/ { 7000, 3083, 3195 },
/*062*/ { 7100, 3070, 3181 },
/*063*/ { 7200, 3058, 3168 },
/*064*/ { 7300, 3045, 3154 },
/*065*/ { 7400, 3034, 3142 },
/*066*/ { 7500, 3022, 3129 },
/*067*/ { 7600, 3011, 3117 },
/*068*/ { 7700, 3000, 3105 },
/*069*/ { 7800, 2990, 3094 },
/*070*/ { 7900, 2980, 3082 },
/*071*/ { 8000, 2970, 3071 },
/*072*/ { 8100, 2961, 3061 },
/*073*/ { 8200, 2952, 3050 },
/*074*/ { 8300, 2943, 3040 },
/*075*/ { 8400, 2934, 3030 },
/*076*/ { 8500, 2926, 3020 },
/*077*/ { 8600, 2917, 3011 },
/*078*/ { 8700, 2910, 3001 },
/*079*/ { 8800, 2902, 2992 },
/*080*/ { 8900, 2894, 2983 },
/*081*/ { 9000, 2887, 2975 },
/*082*/ { 9100, 2880, 2966 },
/*083*/ { 9200, 2873, 2958 },
/*084*/ { 9300, 2866, 2950 },
/*085*/ { 9400, 2860, 2942 },
/*086*/ { 9500, 2853, 2934 },
/*087*/ { 9600, 2847, 2927 },
/*088*/ { 9700, 2841, 2919 },
/*089*/ { 9800, 2835, 2912 },
/*090*/ { 9900, 2829, 2905 },
/*091*/ { 10000, 2824, 2898 },
};
bool dal_color_temperature_find_white_point(
int32_t request_temperature,
struct white_point_data *data)
{
bool ret = false;
struct white_point_entry entry;
if (request_temperature > 0) {
ret =
dal_color_temperature_search_white_point_table(
request_temperature,
&entry);
if (ret == true) {
data->white_x = entry.dx;
data->white_y = entry.dy;
}
}
return ret;
}
bool dal_color_temperature_search_white_point_table(
uint32_t temp_to_find,
struct white_point_entry *entry)
{
bool ret = false;
const struct white_point_entry *p;
uint32_t const_size;
const_size = ARRAY_SIZE(white_point_table);
for (p = white_point_table; p < &white_point_table[const_size]; p++) {
if (p->temperature == temp_to_find) {
*entry = *p;
ret = true;
break;
}
}
return ret;
}
bool dal_color_temperature_find_color_temperature(
struct white_point_data *data,
int32_t *temperature,
bool *exact_match)
{
bool ret = false;
const struct white_point_entry *p;
const struct white_point_entry *next;
const struct white_point_entry *foundx = NULL;
uint32_t const_size;
const_size = ARRAY_SIZE(white_point_table);
for (p = white_point_table; p < &white_point_table[const_size]; p++) {
if (p->dx == data->white_x && p->dy == data->white_y) {
*temperature = p->temperature;
*exact_match = true;
ret = true;
break;
}
}
if (ret == false) {
for (p = white_point_table;
p < &white_point_table[const_size]; p++) {
next = p + 1;
if (p->dx >= data->white_x &&
next->dx <= data->white_x) {
foundx = p;
*exact_match = false;
ret = true;
break;
}
if (foundx != NULL)
*temperature = foundx->temperature;
}
}
if (ret == false) {
/* no such color temperature */
/* give default and investigate because
* it would be annoying for CCC */
*temperature = 6500;
ret = true;
}
return ret;
}
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