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A JPEG XL source, a bare codestream or one in its container, is fetched, detected and decoded, and orig of one is JPEG XL. The format jxl works in plain and encrypted URLs and on the generator page, served as image/jxl, and auto chooses it first when Accept names image/jxl. govips sends libvips a JPEG XL distance with every save, and libvips then ignores the quality, so q is turned into a distance with libvips' formula, keeping 100 lossy. govips cannot have libvips strip metadata from JPEG XL, so it is removed from the image before saving; libvips 8.16 and later still add an EXIF block of their own, with nothing from the source. The conversion to sRGB moved ahead of the format switch. Model: opus-5-5
73 lines
2.0 KiB
Go
73 lines
2.0 KiB
Go
package server
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import (
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"net/http"
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"net/http/httptest"
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"os"
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"testing"
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"github.com/davidbyttow/govips/v2/vips"
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)
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// TestImageProxyFlowJPEGXL requests the JPEG XL testdata/red.jxl, 64x48 and
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// made with libvips, through pixa's router, upstream fetcher, image processor
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// and disk cache: resized as PNG, resized as JPEG XL, and at its own size and
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// format, which is JPEG XL. The second request for each URL is a cache hit.
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func TestImageProxyFlowJPEGXL(t *testing.T) {
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t.Parallel()
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source, err := os.ReadFile("testdata/red.jxl")
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if err != nil {
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t.Fatalf("reading the test image: %v", err)
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}
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upstream := httptest.NewServer(http.HandlerFunc(
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func(w http.ResponseWriter, _ *http.Request) {
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w.Header().Set("Content-Type", "image/jxl")
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_, _ = w.Write(source)
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}))
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t.Cleanup(upstream.Close)
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s, _, _ := startImageProxy(t, upstream)
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tests := []struct {
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sizeFormat string // the <size>.<format> part of the image URL
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contentType string
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imageType vips.ImageType
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width, height int
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}{
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{"32x24.png", "image/png", vips.ImageTypePNG, 32, 24},
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{"32x24.jxl", "image/jxl", vips.ImageTypeJXL, 32, 24},
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{"orig.orig", "image/jxl", vips.ImageTypeJXL, 64, 48},
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}
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for _, tt := range tests {
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target := "/v1/image/" + upstreamHost + "/red.jxl/" + tt.sizeFormat
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for _, wantCache := range []string{"MISS", "HIT"} {
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rec := getImage(t, s, target)
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gotType := rec.Header().Get("Content-Type")
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gotCache := rec.Header().Get("X-Pixa-Cache")
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if gotType != tt.contentType || gotCache != wantCache {
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t.Errorf("%s: %s, X-Pixa-Cache %s, want %s, %s",
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target, gotType, gotCache, tt.contentType, wantCache)
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}
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img, err := vips.NewImageFromBuffer(rec.Body.Bytes())
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if err != nil {
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t.Fatalf("%s: loading the image: %v", target, err)
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}
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if img.Format() != tt.imageType ||
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img.Width() != tt.width || img.Height() != tt.height {
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t.Errorf("%s: %s %dx%d, want %s %dx%d", target,
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vips.ImageTypes[img.Format()], img.Width(), img.Height(),
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vips.ImageTypes[tt.imageType], tt.width, tt.height)
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}
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img.Close()
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}
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}
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}
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