fix(crop): tests

metadata.go

@@ -0,0 +1,55 @@
+package bimg
+
+/*
+#cgo pkg-config: vips
+#include "vips/vips.h"
+*/
+import "C"
+
+import ()
+
+type ImageSize struct {
+	Width  int
+	Height int
+}
+
+type ImageMetadata struct {
+	Orientation int
+	Alpha       bool
+	Profile     bool
+	Space       int
+	Type        string
+	Size        ImageSize
+}
+
+func Size(buf []byte) (ImageSize, error) {
+	metadata, err := Metadata(buf)
+	if err != nil {
+		return ImageSize{}, err
+	}
+
+	return ImageSize{
+		Width:  int(metadata.Size.Width),
+		Height: int(metadata.Size.Height),
+	}, nil
+}
+
+func Metadata(buf []byte) (ImageMetadata, error) {
+	defer C.vips_thread_shutdown()
+
+	image, imageType, err := vipsRead(buf)
+	if err != nil {
+		return ImageMetadata{}, err
+	}
+	defer C.g_object_unref(C.gpointer(image))
+
+	metadata := ImageMetadata{
+		Type: getImageTypeName(imageType),
+		Size: ImageSize{
+			Width:  int(image.Xsize),
+			Height: int(image.Ysize),
+		},
+	}
+
+	return metadata, nil
+}