brendt / responsive-images

            $responsiveImage->addSource($scaledSrc, $newWidth);

            $publicScaledPath = "{$this->publicPath}/{$urlPath}/{$scaledName}";

            if (!$this->enableCache || !$this->fs->exists($publicScaledPath)) {

                $this->fs->dumpFile(

                    $publicScaledPath,

                    $imageObject->resize($newWidth, $newWidth * $ratio)->encode($extension)

                );

            }

            $fileSize = $fileSize * $this->stepModifier;

            $newWidth = floor(sqrt(($fileSize / $pixelPrice) / $ratio));

            $responsiveImage->addSource($scaledSrc, $width);

            $publicScaledPath = "{$this->publicPath}/{$urlPath}/{$scaledName}";

            if (!$this->enableCache || !$this->fs->exists($publicScaledPath)) {

                $this->fs->dumpFile(

                    $publicScaledPath,

                    $imageObject->resize($width, $height)->encode($extension)

                );

            }

            $width = floor($width * $this->stepModifier);

            $height = floor($height * $this->stepModifier);