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Precompute fade_table first level index

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Kp 2016-02-10 03:58:05 +00:00
parent e6d5b6f041
commit 443b021db8
1 changed files with 4 additions and 2 deletions
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6
common/2d/2dsline.cpp
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@ -30,8 +30,10 @@ COPYRIGHT 1993-1998 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
namespace dcx {
static void gr_linear_darken(ubyte * dest, int darkening_level, int count, const gft_array1 &fade_table) {
auto predicate = [&](ubyte c) { return fade_table[darkening_level][c]; };
static void gr_linear_darken(uint8_t *const dest, unsigned darkening_level, unsigned count, const gft_array1 &fade_table)
{
auto &t = fade_table[darkening_level];
const auto predicate = [&](const uint8_t c) { return t[c]; };
std::transform(dest, dest + count, dest, predicate);
}