diff options
| -rw-r--r-- | src/client/tile.cpp | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/client/tile.cpp b/src/client/tile.cpp index f9f38ec6d..e6668063c 100644 --- a/src/client/tile.cpp +++ b/src/client/tile.cpp @@ -1748,6 +1748,37 @@ static void blit_with_alpha_overlay(video::IImage *src, video::IImage *dst, } } +// This function has been disabled because it is currently unused. +// Feel free to re-enable if you find it handy. +#if 0 +/* + Draw an image on top of an another one, using the specified ratio + modify all partially-opaque pixels in the destination. +*/ +static void blit_with_interpolate_overlay(video::IImage *src, video::IImage *dst, + v2s32 src_pos, v2s32 dst_pos, v2u32 size, int ratio) +{ + for (u32 y0 = 0; y0 < size.Y; y0++) + for (u32 x0 = 0; x0 < size.X; x0++) + { + s32 src_x = src_pos.X + x0; + s32 src_y = src_pos.Y + y0; + s32 dst_x = dst_pos.X + x0; + s32 dst_y = dst_pos.Y + y0; + video::SColor src_c = src->getPixel(src_x, src_y); + video::SColor dst_c = dst->getPixel(dst_x, dst_y); + if (dst_c.getAlpha() > 0 && src_c.getAlpha() != 0) + { + if (ratio == -1) + dst_c = src_c.getInterpolated(dst_c, (float)src_c.getAlpha()/255.0f); + else + dst_c = src_c.getInterpolated(dst_c, (float)ratio/255.0f); + dst->setPixel(dst_x, dst_y, dst_c); + } + } +} +#endif + /* Apply color to destination */ |