7 Commits

Author SHA1 Message Date
Chris Craik
15a07a21eb Use path outlines to define shadow shapes
Fixes the simplifying assumption that shadow casters were always
rectangular.

Java side APIs + plumbing to pass down correct shapes still need to be added.

Change-Id: Ic4fee90af15679951a44bb5cc6ae454b98c4c194
2014-01-26 13:43:53 -08:00
Chris Craik
d218a92c0a Use const where possible for drawing parameters
They should never be modified by a Renderer, only read and copied.

Change-Id: I9d8d55dca19115ee9dfeb2bb3f092ba2fb327cd4
2014-01-03 13:55:08 -08:00
Chris Craik
d6b65f6771 Use const access to snapshot from OpenGLRenderer
Additionally, move clipping methods to StatefulBaseRenderer

Change-Id: Iff232bf16fc1ad3b7d89493da6d8915db7bc5e4f
2014-01-02 12:57:41 -08:00
ztenghui
55bfb4e728 Calculate and show Ambient shadow.
Basically we compute the shadow as a strip of triangles, whose alpha value
is the strength of the shadow.
We use the normal to extend the geometry.
And we use static function and try to avoid new/malloc in the computation.

Change-Id: I382286f1cad351bd5ff983f76f446c075819dcaf
2013-12-13 17:25:47 -08:00
Chris Craik
f0a590781b Clean up quick rejection, especially surrounding points + lines.
bug:4351353

quickReject and quickRejectNoScissor have been renamed and refactored:
- to make the scissor side effect clear and explicit
- dangerous methods no longer public
- to make the simple quick reject check logic const
- simple quick reject is now conservative

This CL also fixes several issues with line and point quickRejection -
sub-pixel and hairline lines are much less likely to be incorrectly
rejected, especially at small canvas scale.

Additionally, alpha modulation for AA points < 1px in size is now
correct, dumplicating SW behavior (similar to lines and stroked
shapes work).

Change-Id: Ibb0710c721b9fb415d05acf54dd3d2b4d602156a
2013-11-22 11:36:12 -08:00
Chris Craik
6d29c8d521 Add tessellation path for points
bug:4351353
bug:8185479

Point tessellation is similar to line special case, except that we
only tessellate one point (as a circle or rect) and duplicate it
across other instances.

Additionally:

Fixes square caps for AA=false lines

Cleanup in CanvasCompare, disabling interpolation on zoomed-in
comparison view

Change-Id: I0756fcc4b20f77878fed0d8057297c80e82ed9dc
2013-05-14 14:12:55 -07:00
Chris Craik
65cd612fac Add cap tessellation support
bug:7117155
bug:8114304

Currently used for lines (with and without AA) and arcs with useCenter=false

Also removes 0.375, 0.375 offset for AA lines

Change-Id: Ic8ace418739344db1e2814edf65253fe7448b0b0
2013-02-06 15:35:12 -08:00