Moved PNG loading to common.

cmd/mtseeder/pyramid.go

@@ -19,6 +19,8 @@ import (
 	"strings"
 	"sync"
 
+	"bitbucket.org/s_l_teichmann/mtredisalize/common"
+
 	"github.com/nfnt/resize"
 )
 
@@ -134,23 +136,6 @@ func createParentLevel(oldDir string, jobs chan pyramidJob) (newDir string, err
 	return
 }
 
-func loadImage(path string) image.Image {
-	var err error
-	var file *os.File
-	if file, err = os.Open(path); err != nil {
-		//log.Printf("WARN: %s", err)
-		return image.White
-	}
-	defer file.Close()
-	reader := bufio.NewReader(file)
-	var img image.Image
-	if img, err = png.Decode(reader); err != nil {
-		log.Printf("WARN: %s", err)
-		return image.White
-	}
-	return img
-}
-
 var dps = [4]image.Point{
 	image.Pt(0, 256),
 	image.Pt(0, 0),
@@ -161,7 +146,7 @@ func fuseTile(scratch *image.RGBA, job *pyramidJob) (err error) {
 
 	for i, path := range job.src {
 
-		img := loadImage(path)
+		img := common.LoadPNG(path)
 
 		sr := img.Bounds()
 		r := sr.Sub(sr.Min).Add(dps[i])