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Guard against unexpected overlay band format #97

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Lovell Fuller 2015-07-11 22:56:18 +01:00
parent 2ec845b083
commit 642e5687b6
1 changed files with 10 additions and 0 deletions
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10
src/pipeline.cc
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@ -726,6 +726,16 @@ class PipelineWorker : public NanAsyncWorker {
(baton->err).append("Overlay image is of an unsupported image format");
return Error();
}
if (image->BandFmt != VIPS_FORMAT_UCHAR && image->BandFmt != VIPS_FORMAT_FLOAT) {
(baton->err).append("Expected image band format to be uchar or float: ");
(baton->err).append(vips_enum_nick(VIPS_TYPE_BAND_FORMAT, image->BandFmt));
return Error();
}
if (overlayImage->BandFmt != VIPS_FORMAT_UCHAR && overlayImage->BandFmt != VIPS_FORMAT_FLOAT) {
(baton->err).append("Expected overlay image band format to be uchar or float: ");
(baton->err).append(vips_enum_nick(VIPS_TYPE_BAND_FORMAT, overlayImage->BandFmt));
return Error();
}
if (!HasAlpha(overlayImage)) {
(baton->err).append("Overlay image must have an alpha channel");
return Error();