Allow WriteImageDataFunction() callback to be called with empty images #496
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ptc-tgamper
commented
Jul 9, 2024
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Please create PR for each issues(if issues are orthogonal) |
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ptc-tgamper
commented
Jul 23, 2024
| @@ -2767,6 +2767,12 @@ bool WriteImageData(const std::string *basepath, const std::string *filename, | |||
| const Image *image, bool embedImages, | |||
| const FsCallbacks* fs_cb, const URICallbacks *uri_cb, | |||
| std::string *out_uri, void *) { | |||
| // Early out on empty images, report the original uri if the image was not written. | |||
| if (image->image.empty()) { | |||
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With this we keep the previous behaviour, although the callback is now invoked for empty images.
ptc-tgamper
commented
Jul 23, 2024
| bool imageWritten = false; | ||
| if (WriteImageData != nullptr && !filename.empty() && !image.image.empty()) { | ||
| if (WriteImageData != nullptr && !filename.empty()) { |
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Invoke the callback for empty images
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I tailored this branch now to the specific issue, nothing more. Please review. |
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You should describe the summary of what this PR is. |
ptc-tgamper
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Is it ok to merge now, or am I still missing something? @syoyo ? |
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Good! Merged! The description become clear. |
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Allow WriteImageDataFunction() callback to be called with empty images.
The motivation on our side is that we want to avoid to load any image data into memory at all, as we have to deal with models that use multiple Gigabytes (compressed size) of textures. Thus we are looking to employ a custom image loader and writer, where the first does not load/decode any image data, and the second is still called for those empty images.