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Expose density metadata; set density of images from vector input

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Lovell Fuller
2016-03-01 19:27:47 +00:00
parent d92ea31858
commit bb37dc1ea6
12 changed files with 98 additions and 9 deletions
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10
src/metadata.cc
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@@ -38,6 +38,8 @@ using sharp::DetermineImageType;
using sharp::HasProfile;
using sharp::HasAlpha;
using sharp::ExifOrientation;
using sharp::HasDensity;
using sharp::GetDensity;
using sharp::FreeCallback;
using sharp::counterQueue;
@@ -52,6 +54,7 @@ struct MetadataBaton {
int height;
std::string space;
int channels;
int density;
bool hasProfile;
bool hasAlpha;
int orientation;
@@ -63,6 +66,7 @@ struct MetadataBaton {
MetadataBaton():
bufferInLength(0),
density(0),
orientation(0),
exifLength(0),
iccLength(0) {}
@@ -120,6 +124,9 @@ class MetadataWorker : public AsyncWorker {
baton->height = image.height();
baton->space = vips_enum_nick(VIPS_TYPE_INTERPRETATION, image.interpretation());
baton->channels = image.bands();
if (HasDensity(image)) {
baton->density = GetDensity(image);
}
baton->hasProfile = HasProfile(image);
// Derived attributes
baton->hasAlpha = HasAlpha(image);
@@ -161,6 +168,9 @@ class MetadataWorker : public AsyncWorker {
Set(info, New("height").ToLocalChecked(), New<Number>(baton->height));
Set(info, New("space").ToLocalChecked(), New<String>(baton->space).ToLocalChecked());
Set(info, New("channels").ToLocalChecked(), New<Number>(baton->channels));
if (baton->density > 0) {
Set(info, New("density").ToLocalChecked(), New<Number>(baton->density));
}
Set(info, New("hasProfile").ToLocalChecked(), New<Boolean>(baton->hasProfile));
Set(info, New("hasAlpha").ToLocalChecked(), New<Boolean>(baton->hasAlpha));
if (baton->orientation > 0) {