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expose clear way to create default mips

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Change-Id: Id533b71d56fc44d8f86db24c5c4e9131d57479a5
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/316716
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
This commit is contained in:
Mike Reed 2020-09-12 10:38:32 -04:00 committed by Skia Commit-Bot
parent 582c5a9a84
commit 186866c461
3 changed files with 11 additions and 1 deletions
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6
include/core/SkImage.h
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@ -1174,6 +1174,12 @@ public:
*/
sk_sp<SkImage> withMipmaps(sk_sp<SkMipmap> data) const;
/**
* Returns an image with the same "base" pixels as the this image, but with mipmap levels
* automatically generated and attached.
*/
sk_sp<SkImage> withDefaultMipmaps() const;
/** Returns SkImage backed by GPU texture associated with context. Returned SkImage is
compatible with SkSurface created with dstColorSpace. The returned SkImage respects
mipMapped setting; if mipMapped equals GrMipmapped::kYes, the backing texture

4
src/image/SkImage.cpp
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@ -669,3 +669,7 @@ sk_sp<SkImage> SkImage::withMipmaps(sk_sp<SkMipmap> mips) const {
}
return sk_ref_sp((const_cast<SkImage*>(this)));
}
sk_sp<SkImage> SkImage::withDefaultMipmaps() const {
return this->withMipmaps(nullptr);
}

2
tests/MipMapTest.cpp
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@ -228,7 +228,7 @@ DEF_TEST(image_mip_factory, reporter) {
auto img = GetResourceAsImage("images/mandrill_128.png")->makeRasterImage();
REPORTER_ASSERT(reporter, !img->hasMipmaps());
auto img1 = img->withMipmaps(nullptr);
auto img1 = img->withDefaultMipmaps();
REPORTER_ASSERT(reporter, img.get() != img1.get());
REPORTER_ASSERT(reporter, img1->hasMipmaps());