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| author | enne@chromium.org <enne@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-01-08 17:12:33 +0000 |
|---|---|---|
| committer | enne@chromium.org <enne@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-01-08 17:12:33 +0000 |
| commit | ce37a153aa8edcda878ca8dde0a61f43e514c88f (patch) | |
| tree | 2cea5a5f3ac23539ed74147e001f56ad9431d8ff /cc/picture.cc | |
| parent | fb6df6d7cb47fcf34dfc4e72b130d3c0fe5a2ba5 (diff) | |
| download | chromium_src-ce37a153aa8edcda878ca8dde0a61f43e514c88f.zip chromium_src-ce37a153aa8edcda878ca8dde0a61f43e514c88f.tar.gz chromium_src-ce37a153aa8edcda878ca8dde0a61f43e514c88f.tar.bz2 | |
cc: Fix low-res impl-side painting artifacts
Instead of clipping cc::Picture on recorded pixel boundaries (which may be a
partial pixel in the final rastered content if content scale < 1), clip only on
integral pixels in the final rastered output. This requires recording a small
buffer of pixels around every picture, specified via a min contents scale.
NOTRY=true
R=nduca@chromium.org
BUG=167590
Review URL: https://chromiumcodereview.appspot.com/11678003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@175542 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'cc/picture.cc')
| -rw-r--r-- | cc/picture.cc | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/cc/picture.cc b/cc/picture.cc index 378c20e..b0e36e8 100644 --- a/cc/picture.cc +++ b/cc/picture.cc @@ -10,6 +10,7 @@ #include "third_party/skia/include/core/SkData.h" #include "third_party/skia/include/utils/SkPictureUtils.h" #include "ui/gfx/rect_conversions.h" +#include "ui/gfx/skia_util.h" namespace { // URI label for a lazily decoded SkPixelRef. @@ -88,10 +89,16 @@ void Picture::Record(ContentLayerClient* painter, opaque_rect_ = gfx::ToEnclosedRect(opaque_layer_rect); } -void Picture::Raster(SkCanvas* canvas) { +void Picture::Raster( + SkCanvas* canvas, + gfx::Rect content_rect, + float contents_scale) { TRACE_EVENT0("cc", "Picture::Raster"); DCHECK(picture_); + canvas->save(); + canvas->clipRect(gfx::RectToSkRect(content_rect)); + canvas->scale(contents_scale, contents_scale); canvas->translate(layer_rect_.x(), layer_rect_.y()); canvas->drawPicture(*picture_); canvas->restore(); |