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Ensure 16-bit PNG output uses correct bitdepth #2958

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This commit is contained in:
Max Gordon
2021-10-31 22:22:35 +01:00
committed by Lovell Fuller
parent 2a0077c481
commit 2deced0fb9
2 changed files with 14 additions and 2 deletions
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4
src/pipeline.cc
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@@ -824,7 +824,7 @@ class PipelineWorker : public Napi::AsyncWorker {
->set("filter", baton->pngAdaptiveFiltering ? VIPS_FOREIGN_PNG_FILTER_ALL : VIPS_FOREIGN_PNG_FILTER_NONE)
->set("palette", baton->pngPalette)
->set("Q", baton->pngQuality)
->set("bitdepth", baton->pngBitdepth)
->set("bitdepth", sharp::Is16Bit(image.interpretation()) ? 16 : baton->pngBitdepth)
->set("dither", baton->pngDither)));
baton->bufferOut = static_cast<char*>(area->data);
baton->bufferOutLength = area->length;
@@ -993,7 +993,7 @@ class PipelineWorker : public Napi::AsyncWorker {
->set("filter", baton->pngAdaptiveFiltering ? VIPS_FOREIGN_PNG_FILTER_ALL : VIPS_FOREIGN_PNG_FILTER_NONE)
->set("palette", baton->pngPalette)
->set("Q", baton->pngQuality)
->set("bitdepth", baton->pngBitdepth)
->set("bitdepth", sharp::Is16Bit(image.interpretation()) ? 16 : baton->pngBitdepth)
->set("dither", baton->pngDither));
baton->formatOut = "png";
} else if (baton->formatOut == "webp" || (mightMatchInput && isWebp) ||