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/* See LICENSE file for copyright and license details. */
#include "common.h"
/**
* Concatenation of all ramps
*/
#define ALL red
/**
* Preform installation in an `for (i = 0; i < n; i++)`
* loop and do a `break` afterwords
*/
#define __translate(instruction) for (i = 0; i < n; i++) instruction; break
/**
* Undo the actions of `libgamma_internal_translate_to_64`
*
* @param depth The depth of the gamma ramp, `-1` for `float`, `-2` for `double`
* @param n The grand size of gamma ramps (sum of all channels' sizes)
* @param out Output gamma ramps
* @param in Input array, may be modified
*/
void
libgamma_internal_translate_from_64(signed depth, size_t n, gamma_ramps_any_t out, uint64_t *restrict in)
{
size_t i;
switch (depth) {
/* Translate integer */
case 8: __translate(out.bits8. ALL[i] = (uint8_t)(in[i] / 0x0101010101010101ULL));
case 16: __translate(out.bits16.ALL[i] = (uint16_t)(in[i] / 0x0001000100010001ULL));
case 32: __translate(out.bits32.ALL[i] = (uint32_t)(in[i] / 0x0000000100000001ULL));
/* Identity translation */
case 64: __translate(out.bits64.ALL[i] = in[i]);
/* Translate floating point */
case -1: __translate(out.float_single.ALL[i] = (float)(in[i]) / (float)UINT64_MAX);
case -2: __translate(out.float_double.ALL[i] = (double)(in[i]) / (double)UINT64_MAX);
default:
/* This is not possible */
abort();
break;
}
}
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