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-rw-r--r--doc/lua_api.txt1
-rw-r--r--src/client/tile.cpp23
2 files changed, 23 insertions, 1 deletions
diff --git a/doc/lua_api.txt b/doc/lua_api.txt
index fdc736906..47624496b 100644
--- a/doc/lua_api.txt
+++ b/doc/lua_api.txt
@@ -243,6 +243,7 @@ Example:
default_dirt.png^default_grass_side.png
`default_grass_side.png` is overlayed over `default_dirt.png`.
+The texture with the lower resolution will be automatically upscaled to the higher resolution texture.
### Texture grouping
Textures can be grouped together by enclosing them in `(` and `)`.
diff --git a/src/client/tile.cpp b/src/client/tile.cpp
index e6668063c..72d626da7 100644
--- a/src/client/tile.cpp
+++ b/src/client/tile.cpp
@@ -1175,7 +1175,28 @@ bool TextureSource::generateImagePart(std::string part_of_name,
core::rect<s32>(pos_from, dim),
video::SColor(255,255,255,255),
NULL);*/
- blit_with_alpha(image, baseimg, pos_from, pos_to, dim);
+
+ core::dimension2d<u32> dim_dst = baseimg->getDimension();
+ if (dim == dim_dst) {
+ blit_with_alpha(image, baseimg, pos_from, pos_to, dim);
+ } else if (dim.Width * dim.Height < dim_dst.Width * dim_dst.Height) {
+ // Upscale overlying image
+ video::IImage* scaled_image = m_device->getVideoDriver()->
+ createImage(video::ECF_A8R8G8B8, dim_dst);
+ image->copyToScaling(scaled_image);
+
+ blit_with_alpha(scaled_image, baseimg, pos_from, pos_to, dim_dst);
+ scaled_image->drop();
+ } else {
+ // Upscale base image
+ video::IImage* scaled_base = m_device->getVideoDriver()->
+ createImage(video::ECF_A8R8G8B8, dim);
+ baseimg->copyToScaling(scaled_base);
+ baseimg->drop();
+ baseimg = scaled_base;
+
+ blit_with_alpha(image, baseimg, pos_from, pos_to, dim);
+ }
}
//cleanup
image->drop();