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20 lines
933 B
C
20 lines
933 B
C
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#ifndef VITER_H
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#define VITER_H
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// Spread memory touched by different threads at least 64B apart which I assume is the cache line size. This should avoid memory write contention.
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#define VITER_CACHE_LINE_GAP ((64+sizeof(viter_state)-1)/sizeof(viter_state))
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typedef struct {
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double a, r, g, b, total;
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} viter_state;
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typedef void (*viter_callback)(hist_item *item, float diff);
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LIQ_PRIVATE void viter_init(const colormap *map, const unsigned int max_threads, viter_state state[]);
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LIQ_PRIVATE void viter_update_color(const f_pixel acolor, const float value, const colormap *map, unsigned int match, const unsigned int thread, viter_state average_color[]);
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LIQ_PRIVATE void viter_finalize(colormap *map, const unsigned int max_threads, const viter_state state[]);
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LIQ_PRIVATE double viter_do_iteration(histogram *hist, colormap *const map, const float min_opaque_val, viter_callback callback, const bool fast_palette);
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#endif
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