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doc: list image changes in 1.9 release notes

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Updates #20587

Change-Id: I551a21c0226bc66fd7bca737c30cba679b958c37
Reviewed-on: https://go-review.googlesource.com/45091
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Alberto Donizetti 2017-06-08 10:59:31 +02:00
parent e5e0e5fc3e
commit f749f856f4
1 changed files with 17 additions and 4 deletions
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doc/go1.9.html
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@ -364,7 +364,11 @@ type T1 = T2
<dl id="image"><dt><a href="/pkg/image/">image</a></dt>
<dd>
<p><!-- CL 36734 -->
TODO: <a href="https://golang.org/cl/36734">https://golang.org/cl/36734</a>: fix the overlap check in Rectangle.Intersect.
The <a href="/pkg/image/#Rectangle.Intersect"><code>Rectangle.Intersect</code></a>
method now returns a zero <code>Rectangle</code> when called on
adjacent but non-overlapping rectangles, as documented. In
earlier releases it would incorrectly return an empty but
non-zero <code>Rectangle</code>.
</p>
</dl><!-- image -->
@ -372,7 +376,9 @@ type T1 = T2
<dl id="image/color"><dt><a href="/pkg/image/color/">image/color</a></dt>
<dd>
<p><!-- CL 36732 -->
TODO: <a href="https://golang.org/cl/36732">https://golang.org/cl/36732</a>: tweak the YCbCr to RGBA conversion formula again.
The YCbCr to RGBA conversion formula has been tweaked to ensure
that rounding adjustments span the complete [0, 0xffff] RGBA
range.
</p>
</dl><!-- image/color -->
@ -380,11 +386,18 @@ type T1 = T2
<dl id="image/png"><dt><a href="/pkg/image/png/">image/png</a></dt>
<dd>
<p><!-- CL 34150 -->
TODO: <a href="https://golang.org/cl/34150">https://golang.org/cl/34150</a>: reduce memory allocs encoding images by reusing buffers
The new <a href="/pkg/image/png/#Encoder.BufferPool"><code>Encoder.BufferPool</code></a>
field allows specifying an <a href="/pkg/image/png/#EncoderBufferPool"><code>EncoderBufferPool</code></a>,
that will be used by the encoder to get temporary <code>EncoderBuffer</code>
buffers when encoding a PNG image.
The use of a <code>BufferPool</code> reduces the number of
memory allocations performed while encoding multiple images.
</p>
<p><!-- CL 38271 -->
TODO: <a href="https://golang.org/cl/38271">https://golang.org/cl/38271</a>: decode Gray8 transparent images.
The package now supports the decoding of transparent 8-bit
grayscale ("Gray8") images.
</p>
</dl><!-- image/png -->