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Deprecate background, add op-specific prop to resize/extend/flatten #1392

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Lovell Fuller
2018-10-01 20:58:55 +01:00
parent 6007e13a22
commit a64844689e
17 changed files with 378 additions and 296 deletions
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15
src/common.cc
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@@ -37,6 +37,14 @@ namespace sharp {
std::string AttrAsStr(v8::Handle<v8::Object> obj, std::string attr) {
return *Nan::Utf8String(Nan::Get(obj, Nan::New(attr).ToLocalChecked()).ToLocalChecked());
}
std::vector<double> AttrAsRgba(v8::Handle<v8::Object> obj, std::string attr) {
v8::Local<v8::Object> background = AttrAs<v8::Object>(obj, attr);
std::vector<double> rgba(4);
for (unsigned int i = 0; i < 4; i++) {
rgba[i] = AttrTo<double>(background, i);
}
return rgba;
}
// Create an InputDescriptor instance from a v8::Object describing an input image
InputDescriptor* CreateInputDescriptor(
@@ -72,10 +80,7 @@ namespace sharp {
descriptor->createChannels = AttrTo<uint32_t>(input, "createChannels");
descriptor->createWidth = AttrTo<uint32_t>(input, "createWidth");
descriptor->createHeight = AttrTo<uint32_t>(input, "createHeight");
v8::Local<v8::Object> createBackground = AttrAs<v8::Object>(input, "createBackground");
for (unsigned int i = 0; i < 4; i++) {
descriptor->createBackground[i] = AttrTo<double>(createBackground, i);
}
descriptor->createBackground = AttrAsRgba(input, "createBackground");
}
return descriptor;
}
@@ -605,7 +610,7 @@ namespace sharp {
/*
Apply the alpha channel to a given colour
*/
std::tuple<VImage, std::vector<double>> ApplyAlpha(VImage image, double colour[4]) {
std::tuple<VImage, std::vector<double>> ApplyAlpha(VImage image, std::vector<double> colour) {
// Scale up 8-bit values to match 16-bit input image
double const multiplier = sharp::Is16Bit(image.interpretation()) ? 256.0 : 1.0;
// Create alphaColour colour