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fix(resize): auto rotate image before resize calculus

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This commit is contained in:
Tomas Aparicio 2016-02-09 21:37:08 +00:00
parent da1108f1ad
commit edeb809cc1
3 changed files with 50 additions and 20 deletions
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23
vips.go
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@ -341,8 +341,23 @@ func vipsSave(image *C.VipsImage, o vipsSaveOptions) ([]byte, error) {
return buf, nil
}
func max(x int) int {
return int(math.Max(float64(x), 0))
func getImageBuffer(image *C.VipsImage) ([]byte, error) {
var ptr unsafe.Pointer
length := C.size_t(0)
interlace := C.int(0)
quality := C.int(100)
err := C.int(0)
err = C.vips_jpegsave_bridge(image, &ptr, &length, 1, quality, interlace)
if int(err) != 0 {
return nil, catchVipsError()
}
defer C.g_free(C.gpointer(ptr))
defer C.vips_error_clear()
return C.GoBytes(ptr, C.int(length)), nil
}
func vipsExtract(image *C.VipsImage, left, top, width, height int) (*C.VipsImage, error) {
@ -484,3 +499,7 @@ func vipsSharpen(image *C.VipsImage, o Sharpen) (*C.VipsImage, error) {
}
return out, nil
}
func max(x int) int {
return int(math.Max(float64(x), 0))
}