156 lines
3.8 KiB
Go
156 lines
3.8 KiB
Go
package main
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"github.com/skip2/go-qrcode"
|
|
"os"
|
|
"path/filepath"
|
|
"syscall"
|
|
"unsafe"
|
|
)
|
|
|
|
// ImageDLL 图片处理DLL结构
|
|
type imageDLL struct {
|
|
dll *syscall.DLL
|
|
processImage *syscall.Proc
|
|
createWhiteBottomCenteredImage *syscall.Proc
|
|
freeCString *syscall.Proc
|
|
}
|
|
|
|
// 初始化imageDLL
|
|
func InitImageDll() (*imageDLL, error) {
|
|
dllPath := filepath.Join("image", "dll", "image.dll")
|
|
if _, err := os.Stat(dllPath); os.IsNotExist(err) {
|
|
return nil, fmt.Errorf("image DLL 不存在: %s", dllPath)
|
|
}
|
|
if dll, err := syscall.LoadDLL(dllPath); err != nil {
|
|
return nil, fmt.Errorf("加载image DLL 失败: %s", err)
|
|
} else {
|
|
return &imageDLL{
|
|
dll: dll,
|
|
processImage: dll.MustFindProc("ProcessImage"),
|
|
createWhiteBottomCenteredImage: dll.MustFindProc("CreateWhiteBottomCenteredImage"),
|
|
freeCString: dll.MustFindProc("FreeCString"),
|
|
}, nil
|
|
}
|
|
}
|
|
|
|
func (m *imageDLL) ProcessImage(config *Config) error {
|
|
marshal, err := json.Marshal(config)
|
|
if err != nil {
|
|
return fmt.Errorf("json转换失败: %s", err)
|
|
}
|
|
fromString, _ := syscall.BytePtrFromString(string(marshal))
|
|
info, _, _ := m.processImage.Call(uintptr(unsafe.Pointer(fromString)))
|
|
cStr(info)
|
|
return nil
|
|
}
|
|
|
|
func (m *imageDLL) CreateWhiteBottomCenteredImage(config *Config, w int, h int) (string, error) {
|
|
proc, err2 := m.dll.FindProc("CreateWhiteBottomCenteredImage")
|
|
if err2 != nil {
|
|
return "", err2
|
|
}
|
|
marshal, err := json.Marshal(config)
|
|
if err != nil {
|
|
return "", fmt.Errorf("json转换失败: %s", err)
|
|
}
|
|
|
|
fromString, _ := syscall.BytePtrFromString(string(marshal))
|
|
info, _, _ := proc.Call(uintptr(unsafe.Pointer(fromString)), uintptr(w), uintptr(h))
|
|
return cStr(info), nil
|
|
}
|
|
|
|
// cStr 将 C 字符串指针转换为 Go 字符串
|
|
func cStr(ptr uintptr) string {
|
|
if ptr == 0 {
|
|
return ""
|
|
}
|
|
var b []byte
|
|
for {
|
|
c := *(*byte)(unsafe.Pointer(ptr))
|
|
if c == 0 {
|
|
break
|
|
}
|
|
b = append(b, c)
|
|
ptr++
|
|
}
|
|
return string(b)
|
|
}
|
|
|
|
func main() {
|
|
|
|
//config := &Config{
|
|
// OutputDir: "D:\\isbn_images\\result", // 输出根目录
|
|
// FileName: "D:\\isbn_images\\result\\97800079351851.jpg",
|
|
// //MatchDir: "matched", // 满足条件的图片目录
|
|
// //UnmatchDir: "unmatched", // 不满足条件的图片目录
|
|
// //WhiteDir: "white",
|
|
// //EqualHeightDir: "equalHeight",
|
|
// //WhiteHeightZoomDir: "whiteHeightZoom",
|
|
// CropDir: "crop",
|
|
// MinWhitePct: 0.1, // 纯白占比下限 10%
|
|
// MaxWhitePct: 0.65, // 纯白占比上限 90%
|
|
// Extensions: []string{"jpg", "jpeg", "png", "gif", "bmp", "webp"},
|
|
//}
|
|
|
|
//dll, err := InitImageDll()
|
|
//if err != nil {
|
|
// fmt.Println(err)
|
|
//}
|
|
////err = dll.ProcessImage(config)
|
|
////if err != nil {
|
|
//// fmt.Println(err)
|
|
////}
|
|
//
|
|
//image, err := dll.CreateWhiteBottomCenteredImage(config, 800, 800)
|
|
//if err != nil {
|
|
// fmt.Println(err)
|
|
//}
|
|
//fmt.Println(image)
|
|
|
|
// 图片缩放
|
|
//quality, err := resizeWTToHeightQuality(config, 800, 500)
|
|
//if err != nil {
|
|
// fmt.Println(err)
|
|
//}
|
|
//fmt.Println(quality)
|
|
|
|
//// 图片裁切
|
|
//image, err := cropImage(config, 100, 0, 300, 300)
|
|
//if err != nil {
|
|
// fmt.Println(err)
|
|
//}
|
|
//fmt.Println(image)
|
|
|
|
//file := "D:\\isbn_images\\result\\123\\qrcode.jpg"
|
|
//
|
|
//code, s, err := scanQRCodeNew(file)
|
|
//if err != nil {
|
|
// fmt.Println(err)
|
|
//}
|
|
//if code {
|
|
// fmt.Println(s)
|
|
//}
|
|
|
|
code, err := generateQRCode("你好", 500, 500, "D:\\isbn_images\\result\\123\\qrcode.jpg")
|
|
if err != nil {
|
|
fmt.Println(err)
|
|
}
|
|
fmt.Println(code)
|
|
}
|
|
|
|
// 生成二维码
|
|
func generateQRCode1() {
|
|
// 一行代码生成二维码
|
|
err := qrcode.WriteFile("https://example.com", qrcode.Medium, 256, "qrcode.png")
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
//// 更多控制
|
|
//q, _ := qrcode.New("https://github.com", qrcode.High)
|
|
//q.WriteFile(256, "custom_qr.png")
|
|
}
|