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- added a quick header check for WebP before loading the entire file for real identification.
This allows quick rejection of virtually everything that's not a WebP without loading the entire file first.
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1748477086
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1 changed files with 7 additions and 1 deletions
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@ -56,6 +56,12 @@ FImageSource *WebPImage_TryCreate(FileReader &file, int lumpnum)
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{
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int width = 0, height = 0;
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int xoff = 0, yoff = 0;
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file.Seek(0, FileReader::SeekSet);
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uint8_t header[12];
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if (file.Read(header, 12) != 12) return nullptr;
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if (memcmp(header, "RIFF", 4) || memcmp(header + 8, "WEBP", 4)) return nullptr;
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file.Seek(0, FileReader::SeekSet);
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auto bytes = file.Read();
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@ -76,7 +82,7 @@ FImageSource *WebPImage_TryCreate(FileReader &file, int lumpnum)
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}
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return new FWebPTexture(lumpnum, width, height, xoff, yoff);
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}
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return NULL;
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return nullptr;
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}
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FWebPTexture::FWebPTexture(int lumpnum, int w, int h, int xoff, int yoff)
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