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Fix erroneous top/left clipping in composite #2571

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Fixes bug where certain input values for top/left parameters
in composite can conflict with clipping logic, resulting in
inaccurate alignment in output.
This commit is contained in:
SHG42
2021-02-24 12:02:13 -05:00
committed by Lovell Fuller
parent 83fe65b9e9
commit 34a2e14a14
2 changed files with 23 additions and 2 deletions
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9
src/pipeline.cc
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@@ -602,8 +602,13 @@ class PipelineWorker : public Napi::AsyncWorker {
int top;
if (composite->hasOffset) {
// Composite image at given offsets
std::tie(left, top) = sharp::CalculateCrop(image.width(), image.height(),
compositeImage.width(), compositeImage.height(), composite->left, composite->top);
if (composite->tile) {
std::tie(left, top) = sharp::CalculateCrop(image.width(), image.height(),
compositeImage.width(), compositeImage.height(), composite->left, composite->top);
} else {
left = composite->left;
top = composite->top;
}
} else {
// Composite image with given gravity
std::tie(left, top) = sharp::CalculateCrop(image.width(), image.height(),