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Fix dividing by zero crashes in texture modifiers

This commit is contained in:
cx384 2024-01-07 21:49:26 +01:00 committed by GitHub
parent 2c390b5473
commit 2766c70ad3
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 27 additions and 13 deletions
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14
src/client/tile.cpp
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@ -1598,6 +1598,13 @@ bool TextureSource::generateImagePart(std::string part_of_name,
u32 frame_count = stoi(sf.next(":"));
u32 frame_index = stoi(sf.next(":"));
if (frame_count == 0){
errorstream << "generateImagePart(): invalid frame_count "
<< "for part_of_name=\"" << part_of_name
<< "\", using frame_count = 1 instead." << std::endl;
frame_count = 1;
}
if (baseimg == NULL){
errorstream<<"generateImagePart(): baseimg != NULL "
<<"for part_of_name=\""<<part_of_name
@ -1899,6 +1906,13 @@ bool TextureSource::generateImagePart(std::string part_of_name,
u32 x0 = stoi(sf.next(","));
u32 y0 = stoi(sf.next(":"));
if (w0 == 0 || h0 == 0) {
errorstream << "generateImagePart(): invalid width or height "
<< "for part_of_name=\"" << part_of_name
<< "\", cancelling." << std::endl;
return false;
}
core::dimension2d<u32> img_dim = baseimg->getDimension();
core::dimension2d<u32> tile_dim(v2u32(img_dim) / v2u32(w0, h0));