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Upgrade libvips to v8.4.2

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Improved EXIF orientation and GIF alpha channel support
This commit is contained in:
Lovell Fuller
2016-10-15 19:07:25 +01:00
parent 1051fcd278
commit eb30f6ceff
19 changed files with 497 additions and 154 deletions
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13
src/common.cc
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@@ -263,11 +263,8 @@ namespace sharp {
*/
int ExifOrientation(VImage image) {
int orientation = 0;
if (image.get_typeof(EXIF_IFD0_ORIENTATION) != 0) {
char const *exif = image.get_string(EXIF_IFD0_ORIENTATION);
if (exif != nullptr) {
orientation = atoi(&exif[0]);
}
if (image.get_typeof(VIPS_META_ORIENTATION) != 0) {
orientation = image.get_int(VIPS_META_ORIENTATION);
}
return orientation;
}
@@ -276,16 +273,14 @@ namespace sharp {
Set EXIF Orientation of image.
*/
void SetExifOrientation(VImage image, int const orientation) {
char exif[3];
g_snprintf(exif, sizeof(exif), "%d", orientation);
image.set(EXIF_IFD0_ORIENTATION, exif);
image.set(VIPS_META_ORIENTATION, orientation);
}
/*
Remove EXIF Orientation from image.
*/
void RemoveExifOrientation(VImage image) {
SetExifOrientation(image, 0);
vips_image_remove(image.get_image(), VIPS_META_ORIENTATION);
}
/*