func checkBoundsAndPix(b1, b2 image.Rectangle, pix1, pix2 []uint8) bool {
if !b1.Eq(b2) {
return false
}
if len(pix1) != len(pix2) {
return false
}
for i := 0; i < len(pix1); i++ {
if pix1[i] != pix2[i] {
return false
}
}
return true
}
func thumbnailRez(imgSrc image.Image, size image.Point, trimmedBounds image.Rectangle) image.Image {
img := ConvertToRGBAIfNecessary(imgSrc)
if !trimmedBounds.Empty() && !trimmedBounds.Eq(img.Bounds()) {
img = img.SubImage(trimmedBounds).(*image.RGBA)
}
b := img.Bounds()
imgSize := image.Point{b.Dx(), b.Dy()}
thumbSize, downscaling := SizePreservingAspect(imgSize, size)
resizedImg := img
if downscaling {
resizedImg = CreateRGBAImageOfSize(thumbSize)
convert(resizedImg, img, false, rez.NewBicubicFilter())
}
dstImg := CreateRGBAImageOfSize(size)
// paint the background
//draw.Draw(dstImg, dstImg.Bounds(), &image.Uniform{bgColor}, image.ZP, draw.Src)
drawCentered(dstImg, resizedImg)
return dstImg
}
func thumbnailNfnt(imgSrc image.Image, size image.Point, trimmedBounds image.Rectangle) image.Image {
img := ConvertToRGBAIfNecessary(imgSrc)
if !trimmedBounds.Empty() && !trimmedBounds.Eq(img.Bounds()) {
img = img.SubImage(trimmedBounds).(*image.RGBA)
}
b := img.Bounds()
imgSize := image.Point{b.Dx(), b.Dy()}
thumbSize, downscaling := SizePreservingAspect(imgSize, size)
var resizedImg image.Image = img
if downscaling {
// resize.Resize returns *image.RGBA64
resizedImg = resize.Resize(uint(thumbSize.X), uint(thumbSize.Y), img, resize.Bilinear)
}
dstImg := CreateRGBAImageOfSize(size)
// paint the background
//draw.Draw(dstImg, dstImg.Bounds(), &image.Uniform{bgColor}, image.ZP, draw.Src)
drawCentered(dstImg, resizedImg)
return dstImg
}