diff options
Diffstat (limited to 'modules')
| -rw-r--r-- | modules/gltf/gltf_document.cpp | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/modules/gltf/gltf_document.cpp b/modules/gltf/gltf_document.cpp index 24d43858b5..be44f66423 100644 --- a/modules/gltf/gltf_document.cpp +++ b/modules/gltf/gltf_document.cpp @@ -3002,24 +3002,31 @@ Error GLTFDocument::_parse_images(Ref<GLTFState> state, const String &p_base_pat Ref<Image> img; + // First we honor the mime types if they were defined. if (mimetype == "image/png") { // Load buffer as PNG. ERR_FAIL_COND_V(Image::_png_mem_loader_func == nullptr, ERR_UNAVAILABLE); img = Image::_png_mem_loader_func(data_ptr, data_size); } else if (mimetype == "image/jpeg") { // Loader buffer as JPEG. ERR_FAIL_COND_V(Image::_jpg_mem_loader_func == nullptr, ERR_UNAVAILABLE); img = Image::_jpg_mem_loader_func(data_ptr, data_size); - } else { - // We can land here if we got an URI with base64-encoded data with application/* MIME type, - // and the optional mimeType property was not defined to tell us how to handle this data (or was invalid). - // So let's try PNG first, then JPEG. + } + + // If we didn't pass the above tests, we attempt loading as PNG and then + // JPEG directly. + // This covers URIs with base64-encoded data with application/* type but + // no optional mimeType property, or bufferViews with a bogus mimeType + // (e.g. `image/jpeg` but the data is actually PNG). + // That's not *exactly* what the spec mandates but this lets us be + // lenient with bogus glb files which do exist in production. + if (img.is_null()) { // Try PNG first. ERR_FAIL_COND_V(Image::_png_mem_loader_func == nullptr, ERR_UNAVAILABLE); img = Image::_png_mem_loader_func(data_ptr, data_size); - if (img.is_null()) { - ERR_FAIL_COND_V(Image::_jpg_mem_loader_func == nullptr, ERR_UNAVAILABLE); - img = Image::_jpg_mem_loader_func(data_ptr, data_size); - } } - + if (img.is_null()) { // And then JPEG. + ERR_FAIL_COND_V(Image::_jpg_mem_loader_func == nullptr, ERR_UNAVAILABLE); + img = Image::_jpg_mem_loader_func(data_ptr, data_size); + } + // Now we've done our best, fix your scenes. if (img.is_null()) { ERR_PRINT(vformat("glTF: Couldn't load image index '%d' with its given mimetype: %s.", i, mimetype)); state->images.push_back(Ref<Texture2D>()); |