// Explicit thread-safe start of libvips.
// Only call this function if you've previously shutdown libvips
func Initialize() {
if C.VIPS_MAJOR_VERSION <= 7 && C.VIPS_MINOR_VERSION < 40 {
panic("unsupported libvips version!")
}
m.Lock()
runtime.LockOSThread()
defer m.Unlock()
defer runtime.UnlockOSThread()
err := C.vips_init(C.CString("bimg"))
if err != 0 {
panic("unable to start vips!")
}
// Set libvips cache params
C.vips_cache_set_max_mem(maxCacheMem)
C.vips_cache_set_max(maxCacheSize)
// Define a custom thread concurrency limit in libvips (this may generate thread-unsafe issues)
// See: https://github.com/jcupitt/libvips/issues/261#issuecomment-92850414
if os.Getenv("VIPS_CONCURRENCY") == "" {
C.vips_concurrency_set(1)
}
// Enable libvips cache tracing
if os.Getenv("VIPS_TRACE") != "" {
C.vips_enable_cache_set_trace()
}
initialized = true
}
func init() {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
err := C.vips_initialize()
if err != 0 {
C.vips_shutdown()
panic("unable to start vips!")
}
C.vips_concurrency_set(1)
C.vips_cache_set_max_mem(100 * 1048576) // 100Mb
C.vips_cache_set_max(500)
}
// Initialize starts up the world of VIPS. You should call this on program
// startup before using any other VIPS operations.
func Initialize() {
runtime.LockOSThread()
defer runtime.UnlockOSThread()
_ = os.Setenv("VIPS_WARNING", "disable")
if err := C.cgo_vips_init(); err != 0 {
C.vips_shutdown()
panic("vips_initialize error")
}
C.vips_concurrency_set(1)
C.vips_cache_set_max_mem(0)
C.vips_cache_set_max(0)
// Vips 8.3 sometimes produces 1px smaller images than desired without rounding help.
if C.VIPS_MAJOR_VERSION == 8 && C.VIPS_MINOR_VERSION < 4 {
ResizeOffset = 0.5
}
}