mirror of
https://github.com/imgproxy/imgproxy.git
synced 2025-01-18 11:12:10 +02:00
Tune up processing
This commit is contained in:
DarthSim
parent
708b2751ed
commit
7e1b9408a4
62
process.go
62
process.go
@ -76,6 +76,8 @@ type processingOptions struct {
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format imageType
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}
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var vipsSupportSmartcrop bool
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func initVips() {
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runtime.LockOSThread()
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defer runtime.UnlockOSThread()
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@ -88,6 +90,8 @@ func initVips() {
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C.vips_concurrency_set(1)
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C.vips_cache_set_max_mem(100 * 1024 * 1024) // 100Mb
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C.vips_cache_set_max(500)
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vipsSupportSmartcrop = C.vips_support_smartcrop() == 1
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}
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func vipsTypeSupportedLoad(imgtype imageType) bool {
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@ -165,13 +169,9 @@ func processImage(data []byte, imgtype imageType, po processingOptions) ([]byte,
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err := C.int(0)
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var img, tmpImg *C.struct__VipsImage
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var img *C.struct__VipsImage
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// Cleanup after all
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defer func() {
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C.vips_thread_shutdown()
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C.vips_error_clear()
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}()
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defer C.vips_cleanup()
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// Load the image
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switch imgtype {
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@ -203,44 +203,36 @@ func processImage(data []byte, imgtype imageType, po processingOptions) ([]byte,
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}
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if po.width != imgWidth || po.height != imgHeight {
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// Resize image for "fill" and "fit"
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var (
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pResize, pCrop int
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pScale float64
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pSmart int
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pLeft, pTop, pWidth, pHeight int
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)
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if po.resize == FILL || po.resize == FIT {
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scale := calcScale(imgWidth, imgHeight, po)
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err = C.vips_resize_go(img, &tmpImg, C.double(scale))
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C.g_object_unref(C.gpointer(img))
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img = tmpImg
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if err != 0 {
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return nil, vipsError()
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}
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}
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// Crop image for "fill" and "crop"
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if po.resize == FILL || po.resize == CROP {
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if po.gravity == SMART && C.vips_support_smartcrop() == 1 {
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err = C.vips_smartcrop_go(img, &tmpImg, C.int(po.width), C.int(po.height))
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C.g_object_unref(C.gpointer(img))
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img = tmpImg
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if err != 0 {
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return nil, vipsError()
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}
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pResize = 1
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pScale = calcScale(imgWidth, imgHeight, po)
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} else {
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left, top := calcCrop(int(img.Xsize), int(img.Ysize), po)
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err = C.vips_extract_area_go(img, &tmpImg, C.int(left), C.int(top), C.int(po.width), C.int(po.height))
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C.g_object_unref(C.gpointer(img))
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img = tmpImg
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if err != 0 {
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return nil, vipsError()
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}
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pScale = 1.0
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}
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if po.resize == FILL || po.resize == CROP {
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pCrop = 1
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pWidth, pHeight = po.width, po.height
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if po.gravity == SMART && vipsSupportSmartcrop {
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pSmart = 1
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} else {
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pLeft, pTop = calcCrop(round(float64(imgWidth)*pScale), round(float64(imgHeight)*pScale), po)
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}
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}
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// Convert to sRGB colour space
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err = C.vips_colourspace_go(img, &tmpImg, C.VIPS_INTERPRETATION_sRGB)
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C.g_object_unref(C.gpointer(img))
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img = tmpImg
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err = C.vips_process_image(&img, C.int(pResize), C.double(pScale), C.int(pCrop), C.int(pSmart), C.int(pLeft), C.int(pTop), C.int(pWidth), C.int(pHeight))
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if err != 0 {
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return nil, vipsError()
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}
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}
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// Finally, save
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imgsize := C.size_t(0)
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65
vips.h
65
vips.h
@ -5,9 +5,6 @@
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#define VIPS_SUPPORT_SMARTCROP \
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(VIPS_MAJOR_VERSION > 8 || (VIPS_MAJOR_VERSION == 8 && VIPS_MINOR_VERSION >= 5))
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#define VIPS_SUPPORT_RESIZE_KERNEL \
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(VIPS_MAJOR_VERSION > 8 || (VIPS_MAJOR_VERSION == 8 && VIPS_MINOR_VERSION > 3) || (VIPS_MAJOR_VERSION == 8 && VIPS_MINOR_VERSION == 3 && VIPS_MICRO_VERSION >= 1))
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enum types {
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JPEG = 0,
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PNG,
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@ -21,6 +18,12 @@ vips_initialize()
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return vips_init("imgproxy");
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}
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void
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swap_and_clear(VipsImage **in, VipsImage *out) {
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g_object_unref((gpointer) *in);
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*in = out;
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}
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int
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vips_type_find_load_go(int imgtype) {
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if (imgtype == JPEG) {
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@ -56,35 +59,31 @@ int
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vips_jpegload_buffer_go(void *buf, size_t len, VipsImage **out)
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{
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return vips_jpegload_buffer(buf, len, out, "access", VIPS_ACCESS_RANDOM, NULL);
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};
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}
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int
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vips_pngload_buffer_go(void *buf, size_t len, VipsImage **out)
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{
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return vips_pngload_buffer(buf, len, out, "access", VIPS_ACCESS_RANDOM, NULL);
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};
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}
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int
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vips_gifload_buffer_go(void *buf, size_t len, VipsImage **out)
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{
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return vips_gifload_buffer(buf, len, out, "access", VIPS_ACCESS_RANDOM, NULL);
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};
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}
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int
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vips_webpload_buffer_go(void *buf, size_t len, VipsImage **out)
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{
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return vips_webpload_buffer(buf, len, out, "access", VIPS_ACCESS_SEQUENTIAL, NULL);
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};
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}
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int
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vips_resize_go(VipsImage *in, VipsImage **out, double scale)
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{
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#if VIPS_SUPPORT_RESIZE_KERNEL
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return vips_resize(in, out, scale, "kernel", VIPS_KERNEL_LANCZOS3, NULL);
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#else
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return vips_resize(in, out, scale, NULL);
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#endif
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};
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}
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int
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vips_support_smartcrop() {
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@ -108,7 +107,7 @@ int
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vips_colourspace_go(VipsImage *in, VipsImage **out, VipsInterpretation space)
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{
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return vips_colourspace(in, out, space, NULL);
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};
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}
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int
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vips_extract_area_go(VipsImage *in, VipsImage **out, int left, int top, int width, int height)
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@ -116,6 +115,36 @@ vips_extract_area_go(VipsImage *in, VipsImage **out, int left, int top, int widt
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return vips_extract_area(in, out, left, top, width, height, NULL);
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}
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int
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vips_process_image(VipsImage **img, int resize, double scale, int crop, int smart, int left, int top, int width, int height)
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{
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VipsImage *tmp;
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int err;
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if (resize > 0) {
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err = vips_resize_go(*img, &tmp, scale);
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swap_and_clear(img, tmp);
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if (err> 0) { return 1; }
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}
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if (crop > 0) {
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if (smart > 0) {
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err = vips_smartcrop_go(*img, &tmp, width, height);
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swap_and_clear(img, tmp);
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if (err> 0) { return 1; }
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} else {
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vips_extract_area_go(*img, &tmp, left, top, width, height);
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swap_and_clear(img, tmp);
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if (err> 0) { return 1; }
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}
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}
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err = vips_colourspace_go(*img, &tmp, VIPS_INTERPRETATION_sRGB);
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swap_and_clear(img, tmp);
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return err;
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}
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int
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vips_jpegsave_go(VipsImage *in, void **buf, size_t *len, int strip, int quality, int interlace)
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{
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@ -129,6 +158,14 @@ vips_pngsave_go(VipsImage *in, void **buf, size_t *len)
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}
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int
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vips_webpsave_go(VipsImage *in, void **buf, size_t *len, int strip, int quality) {
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vips_webpsave_go(VipsImage *in, void **buf, size_t *len, int strip, int quality)
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{
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return vips_webpsave_buffer(in, buf, len, "strip", strip, "Q", quality, NULL);
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}
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void
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vips_cleanup()
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{
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vips_thread_shutdown();
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vips_error_clear();
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}
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