Files
photoprism/internal/config/config_thumb.go
2024-05-24 11:25:42 +02:00

112 lines
2.9 KiB
Go

package config
import (
"github.com/photoprism/photoprism/internal/thumb"
"github.com/photoprism/photoprism/pkg/clean"
)
// JpegSize returns the size limit for automatically converted files in `PIXELS` (720-30000).
func (c *Config) JpegSize() int {
if c.options.JpegSize < 720 {
return 720
} else if c.options.JpegSize > 30000 {
return 30000
}
return c.options.JpegSize
}
// PngSize returns the size limit for automatically converted files in `PIXELS` (720-30000).
func (c *Config) PngSize() int {
if c.options.PngSize < 720 {
return 720
} else if c.options.PngSize > 30000 {
return 30000
}
return c.options.PngSize
}
// JpegQuality returns the jpeg image quality as thumb.Quality (25-100).
func (c *Config) JpegQuality() thumb.Quality {
if c.options.JpegQuality < 25 {
c.options.JpegQuality = thumb.QualityMedium.Int()
} else if c.options.JpegQuality > 100 {
c.options.JpegQuality = thumb.QualityMax.Int()
}
return thumb.Quality(c.options.JpegQuality)
}
// ThumbLibrary returns the name of the image processing library to be used for generating thumbnails.
func (c *Config) ThumbLibrary() string {
if c.DisableVips() {
return thumb.LibImaging
}
switch c.options.ThumbLibrary {
case thumb.LibVips, thumb.LibAuto:
return thumb.LibVips
case thumb.LibImaging:
return thumb.LibImaging
default:
c.options.ThumbLibrary = clean.TypeLowerUnderscore(c.options.ThumbLibrary)
if c.options.ThumbLibrary == "imagine" || c.options.ThumbLibrary == "" {
c.options.ThumbLibrary = thumb.LibImaging
return thumb.LibImaging
} else if c.options.ThumbLibrary == "vips" || c.options.ThumbLibrary == "libvips" {
c.options.ThumbLibrary = thumb.LibVips
} else {
c.options.ThumbLibrary = thumb.LibAuto
}
return thumb.LibVips
}
}
// ThumbColor returns the color space for thumbnails.
func (c *Config) ThumbColor() thumb.ColorSpace {
return thumb.ParseColor(c.options.ThumbColor, c.ThumbLibrary())
}
// ThumbFilter returns the thumbnail resample filter (best to worst: blackman, lanczos, cubic or linear).
func (c *Config) ThumbFilter() thumb.ResampleFilter {
return thumb.ParseFilter(c.options.ThumbFilter, c.ThumbLibrary())
}
// ThumbUncached checks if on-demand thumbnail rendering is enabled (high memory and cpu usage).
func (c *Config) ThumbUncached() bool {
return c.options.ThumbUncached
}
// ThumbSizePrecached returns the pre-cached thumbnail size limit in pixels (720-7680).
func (c *Config) ThumbSizePrecached() int {
size := c.options.ThumbSize
if size < 720 {
size = 720 // Mobile, TV
} else if size > 7680 {
size = 7680 // 8K Ultra HD
}
return size
}
// ThumbSizeUncached returns the on-demand rendering size limit in pixels (720-7680).
func (c *Config) ThumbSizeUncached() int {
limit := c.options.ThumbSizeUncached
if limit < 720 {
limit = 720 // Mobile, TV
} else if limit > 7680 {
limit = 7680 // 8K Ultra HD
}
if c.ThumbSizePrecached() > limit {
limit = c.ThumbSizePrecached()
}
return limit
}