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-rw-r--r--platform/default/png_writer.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/platform/default/png_writer.cpp b/platform/default/png_writer.cpp
index 13d60c34fe..9ef9052158 100644
--- a/platform/default/png_writer.cpp
+++ b/platform/default/png_writer.cpp
@@ -72,7 +72,7 @@ std::string encodePNG(const PremultipliedImage& pre) {
(12 + idat.size() /* IDAT */) + (12 /* IEND */));
png.append(preamble, 8);
addChunk(png, "IHDR", ihdr, 13);
- addChunk(png, "IDAT", idat.data(), idat.size());
+ addChunk(png, "IDAT", idat.data(), static_cast<uint32_t>(idat.size()));
addChunk(png, "IEND");
return png;
}