mirror of
https://github.com/mickael-kerjean/filestash.git
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63 lines
1.2 KiB
Go
63 lines
1.2 KiB
Go
package lib
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// #cgo pkg-config: vips
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// #include <resizer.h>
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// #include <stdlib.h>
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import "C"
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import (
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. "github.com/mickael-kerjean/filestash/server/common"
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"io"
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"os"
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"runtime"
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"unsafe"
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"sync"
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)
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var (
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LIBVIPS_INSTALLED = false
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VIPS_LOCK = &sync.Mutex{}
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)
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type Transform struct {
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Input string
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Output string
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Size int
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Crop bool
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Quality int
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Exif bool
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}
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func init() {
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if C.resizer_init(C.int(runtime.NumCPU())) != 0 {
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Log.Warning("Can't load libvips")
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return
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}
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LIBVIPS_INSTALLED = true
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}
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func CreateThumbnail(t *Transform) (io.ReadCloser, error) {
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if LIBVIPS_INSTALLED == false {
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return nil, NewError("Libvips not installed", 501)
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}
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filenameInput := C.CString(t.Input)
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defer C.free(unsafe.Pointer(filenameInput))
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filenameOutput := C.CString(t.Output)
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defer C.free(unsafe.Pointer(filenameOutput))
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VIPS_LOCK.Lock()
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if C.resizer_process(filenameInput, filenameOutput, C.int(t.Size), boolToCInt(t.Crop), C.int(t.Quality), boolToCInt(t.Exif)) != 0 {
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return nil, NewError("", 500)
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}
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VIPS_LOCK.Unlock()
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return os.OpenFile(t.Output, os.O_RDONLY, os.ModePerm)
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}
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func boolToCInt(val bool) C.int {
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if val == false {
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return C.int(0)
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}
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return C.int(1)
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}
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