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avfilter/vf_selectivecolor: refactor some repeating calculations

This commit is contained in:
Paul B Mahol 2021-09-25 20:48:03 +02:00
parent 2b787ef766
commit 69f4fdd10d
1 changed files with 9 additions and 6 deletions
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15
libavfilter/vf_selectivecolor.c
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@ -328,6 +328,9 @@ static inline int selective_color_##nbits(AVFilterContext *ctx, ThreadData *td,
const uint8_t goffset = s->rgba_map[G]; \
const uint8_t boffset = s->rgba_map[B]; \
const uint8_t aoffset = s->rgba_map[A]; \
const int mid = 1<<(nbits-1); \
const int max = (1<<nbits)-1; \
const float scale = 1.f / max; \
\
for (y = slice_start; y < slice_end; y++) { \
uint##nbits##_t *dst = ( uint##nbits##_t *)(out->data[0] + y * dst_linesize); \
@ -339,10 +342,10 @@ static inline int selective_color_##nbits(AVFilterContext *ctx, ThreadData *td,
const int b = src[x + boffset]; \
const int min_color = FFMIN3(r, g, b); \
const int max_color = FFMAX3(r, g, b); \
const int is_white = (r > 1<<(nbits-1) && g > 1<<(nbits-1) && b > 1<<(nbits-1)); \
const int is_white = (r > mid && g > mid && b > mid); \
const int is_neutral = (r || g || b) && \
(r != (1<<nbits)-1 || g != (1<<nbits)-1 || b != (1<<nbits)-1); \
const int is_black = (r < 1<<(nbits-1) && g < 1<<(nbits-1) && b < 1<<(nbits-1)); \
(r != max || g != max || b != max); \
const int is_black = (r < mid && g < mid && b < mid); \
const uint32_t range_flag = (r == max_color) << RANGE_REDS \
| (r == min_color) << RANGE_CYANS \
| (g == max_color) << RANGE_GREENS \
@ -353,9 +356,9 @@ static inline int selective_color_##nbits(AVFilterContext *ctx, ThreadData *td,
| is_neutral << RANGE_NEUTRALS \
| is_black << RANGE_BLACKS; \
\
const float rnorm = r * (1.f / ((1<<nbits)-1)); \
const float gnorm = g * (1.f / ((1<<nbits)-1)); \
const float bnorm = b * (1.f / ((1<<nbits)-1)); \
const float rnorm = r * scale; \
const float gnorm = g * scale; \
const float bnorm = b * scale; \
int adjust_r = 0, adjust_g = 0, adjust_b = 0; \
\
for (i = 0; i < s->nb_process_ranges; i++) { \