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Merge pull request #39200 from azagaya/fix-blend-2 

Fixing wrong blending rect methods
This commit is contained in:
Rémi Verschelde 2020-06-07 15:52:22 +02:00 committed by GitHub
parent 46d8d60186 b211a86ebe
commit ec1bf96e41
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 10 additions and 12 deletions
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22
core/image.cpp
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@ -2539,12 +2539,11 @@ void Image::blend_rect(const Ref<Image> &p_src, const Rect2 &p_src_rect, const P
int dst_y = dest_rect.position.y + i;
Color sc = img->get_pixel(src_x, src_y);
Color dc = get_pixel(dst_x, dst_y);
dc.r = (double)(sc.a * sc.r + dc.a * (1.0 - sc.a) * dc.r);
dc.g = (double)(sc.a * sc.g + dc.a * (1.0 - sc.a) * dc.g);
dc.b = (double)(sc.a * sc.b + dc.a * (1.0 - sc.a) * dc.b);
dc.a = (double)(sc.a + dc.a * (1.0 - sc.a));
set_pixel(dst_x, dst_y, dc);
if (sc.a != 0) {
Color dc = get_pixel(dst_x, dst_y);
dc = dc.blend(sc);
set_pixel(dst_x, dst_y, dc);
}
}
}
}
@ -2594,12 +2593,11 @@ void Image::blend_rect_mask(const Ref<Image> &p_src, const Ref<Image> &p_mask, c
int dst_y = dest_rect.position.y + i;
Color sc = img->get_pixel(src_x, src_y);
Color dc = get_pixel(dst_x, dst_y);
dc.r = (double)(sc.a * sc.r + dc.a * (1.0 - sc.a) * dc.r);
dc.g = (double)(sc.a * sc.g + dc.a * (1.0 - sc.a) * dc.g);
dc.b = (double)(sc.a * sc.b + dc.a * (1.0 - sc.a) * dc.b);
dc.a = (double)(sc.a + dc.a * (1.0 - sc.a));
set_pixel(dst_x, dst_y, dc);
if (sc.a != 0) {
Color dc = get_pixel(dst_x, dst_y);
dc = dc.blend(sc);
set_pixel(dst_x, dst_y, dc);
}
}
}
}