Reland "Add SkImageInfoValidConversion() and SkImageInfoIsValid"
The original is at:
https://skia-review.googlesource.com/c/6887/
The only change to the original is to temporarily comment out
a check in SkImageInfoPriv.h until a Chrome unit test can
be fixed.
The idea is share these standards for the following:
SkImage::readPixels()
SkCanvas::readPixels()
SkCanvas::writePixels()
SkBitmap::readPixels()
SkPixmap::readPixels()
On the raster side, SkPixmap::readPixels() is the right
place to check, because all raster calls go through
there eventually. Then at lower levels (ex: SkPixelInfo),
we can assert.
There's not really a unifying location for gpu calls,
so I've added this in multiple places. I haven't really
dug into the gpu code to SkASSERT() on invalid cases
that we will have already caught.
Follow-up work:
Similar refactor for SkReadPixelRec::trim().
Code cleanup in SkPixelInfo::CopyPixels()
BUG=skia:6021
Change-Id: I6a16f9479bc09e3c87e10c72b0378579f1a70866
Reviewed-on: https://skia-review.googlesource.com/7104
Reviewed-by: Matt Sarett <msarett@google.com>
Commit-Queue: Matt Sarett <msarett@google.com>
9 files changed