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Add GIF save support from libvips 8.12

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This commit is contained in:
lucor 2022-01-11 14:51:12 +01:00
parent 78145aa405
commit 2f73f4d9e0
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GPG key ID: 5AB05891A4905007
4 changed files with 39 additions and 5 deletions
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15
image_test.go
View file

@ -21,9 +21,18 @@ func TestImageResize(t *testing.T) {
}
func TestImageGifResize(t *testing.T) {
_, err := initImage("test.gif").Resize(300, 240)
if err == nil {
t.Errorf("GIF shouldn't be saved within VIPS")
if VipsMajorVersion >= 8 && VipsMinorVersion >= 12 {
buf, err := initImage("test.gif").Resize(300, 240)
if err != nil {
t.Errorf("Cannot process the image: %#v", err)
}
err = assertSize(buf, 300, 240)
if err != nil {
t.Error(err)
}
Write("testdata/test_resize_out.gif", buf)
}
}

7
type_test.go
View file

@ -125,7 +125,7 @@ func TestIsTypeSupportedSave(t *testing.T) {
types := []struct {
name ImageType
}{
{JPEG}, {PNG}, {WEBP},
{JPEG}, {PNG}, {WEBP}, {GIF},
}
if VipsVersion >= "8.5.0" {
types = append(types, struct{ name ImageType }{TIFF})
@ -136,6 +136,9 @@ func TestIsTypeSupportedSave(t *testing.T) {
if VipsVersion >= "8.9.0" {
types = append(types, struct{ name ImageType }{AVIF})
}
if VipsVersion >= "8.12.0" {
types = append(types, struct{ name ImageType }{GIF})
}
for _, n := range types {
if IsTypeSupportedSave(n.name) == false {
@ -152,11 +155,11 @@ func TestIsTypeNameSupportedSave(t *testing.T) {
{"jpeg", true},
{"png", true},
{"webp", true},
{"gif", false},
{"pdf", false},
{"tiff", VipsVersion >= "8.5.0"},
{"heif", VipsVersion >= "8.8.0"},
{"avif", VipsVersion >= "8.9.0"},
{"gif", VipsVersion >= "8.12.0"},
}
for _, n := range types {

5
vips.go
View file

@ -230,6 +230,9 @@ func VipsIsTypeSupportedSave(t ImageType) bool {
if t == AVIF {
return int(C.vips_type_find_save_bridge(C.HEIF)) != 0
}
if t == GIF {
return int(C.vips_type_find_save_bridge(C.GIF)) != 0
}
return false
}
@ -524,6 +527,8 @@ func vipsSave(image *C.VipsImage, o vipsSaveOptions) ([]byte, error) {
saveErr = C.vips_heifsave_bridge(tmpImage, &ptr, &length, strip, quality, lossless)
case AVIF:
saveErr = C.vips_avifsave_bridge(tmpImage, &ptr, &length, strip, quality, lossless, speed)
case GIF:
saveErr = C.vips_gifsave_bridge(tmpImage, &ptr, &length, strip)
default:
saveErr = C.vips_jpegsave_bridge(tmpImage, &ptr, &length, strip, quality, interlace)
}

17
vips.h
View file

@ -185,6 +185,11 @@ vips_type_find_save_bridge(int t) {
if (t == HEIF) {
return vips_type_find("VipsOperation", "heifsave_buffer");
}
#endif
#if (VIPS_MAJOR_VERSION > 8 || (VIPS_MAJOR_VERSION == 8 && VIPS_MINOR_VERSION >= 12))
if (t == GIF) {
return vips_type_find("VipsOperation", "gifsave_buffer");
}
#endif
return 0;
}
@ -407,6 +412,18 @@ vips_heifsave_bridge(VipsImage *in, void **buf, size_t *len, int strip, int qual
#endif
}
int
vips_gifsave_bridge(VipsImage *in, void **buf, size_t *len, int strip) {
#if (VIPS_MAJOR_VERSION > 8 || (VIPS_MAJOR_VERSION == 8 && VIPS_MINOR_VERSION >= 12))
return vips_gifsave_buffer(in, buf, len,
"strip", INT_TO_GBOOLEAN(strip),
NULL
);
#else
return 0;
#endif
}
int
vips_is_16bit (VipsInterpretation interpretation) {
return interpretation == VIPS_INTERPRETATION_RGB16 || interpretation == VIPS_INTERPRETATION_GREY16;