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try to catch / handle Gif decoder OOM gracefully

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... by adding an exception handler that will catch OOM inside decoder.alloc().
not tested yet.
This commit is contained in:
Frank
2025-11-07 00:11:14 +01:00
parent 698da84b4a
commit 25391fe765
1 changed files with 11 additions and 0 deletions
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11
wled00/image_loader.cpp
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@@ -131,7 +131,18 @@ byte renderImageToSegment(Segment &seg) {
decoder.setFileReadCallback(fileReadCallback);
decoder.setFileReadBlockCallback(fileReadBlockCallback);
decoder.setFileSizeCallback(fileSizeCallback);
#if __cpp_exceptions // use exception handler if we can (some targets don't support exceptions)
try {
#endif
decoder.alloc(); // WLEDMM this function may throw out-of memory and cause a crash
#if __cpp_exceptions
} catch (...) { // if we arrive here, the decoder has thrown an OOM exception
gifDecodeFailed = true;
errorFlag = ERR_NORAM_PX;
USER_PRINTLN("\nGIF decoder out of memory. I'm going to shoot myself now.\n");
return IMAGE_ERROR_DECODER_ALLOC;
}
#endif
DEBUG_PRINTLN(F("Starting decoding"));
int derr = 0;