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eeshow/gfx/diff.c (show_areas): break out the actual coloring
... for future sharing.
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c6db84aa26
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@ -242,23 +242,30 @@ static void differences(struct diff *diff, uint32_t *a, const uint32_t *b)
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}
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static void show_areas(struct diff *diff, uint32_t *a)
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static void complement_box(struct diff *diff, uint32_t *a,
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int xa, int ya, int xb, int yb, uint32_t color)
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{
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const struct area *area;
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uint32_t *p;
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int x, y;
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for (y = ya; y != yb; y++) {
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if (y < 0 || y >= diff->h)
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continue;
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p = a + y * (diff->stride >> 2);
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for (x = xa; x != xb; x++)
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if (x >= 0 && x < diff->w && (p[x] & MASK) == MASK)
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p[x] = color;
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}
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}
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static void show_areas(struct diff *diff, uint32_t *a)
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{
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const struct area *area;
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for (area = diff->areas; area; area = area->next)
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for (y = area->ya; y != area->yb; y++) {
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if (y < 0 || y >= diff->h)
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continue;
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p = a + y * (diff->stride >> 2);
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for (x = area->xa; x != area->xb; x++) {
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if (x >= 0 && x < diff->w &&
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(p[x] & MASK) == MASK)
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p[x] = AREA_FILL;
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}
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}
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complement_box(diff, a, area->xa, area->ya, area->xb, area->yb,
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AREA_FILL);
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}
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