11 Commits

Author SHA1 Message Date
ztenghui
21ef8205a1 Tweak the threshold for conic path quads computation.
We still want it to be related to the threshold for bezier generation.

b/19903239

Change-Id: Ifdce32f1c28ecea9eac98d02c73afa948341fc7d
2015-05-29 15:12:55 -07:00
Chris Craik
fca52b7583 Use path intersection instead of saveLayer+mesh to mask projected ripples
bug:14297149

SaveLayer's performance cost is high, and proportional to the surface
being projected onto. Since ripples (even unbounded ones) are now
always projected to the arbitrary background content behind them, this
cost is especially important to avoid.

This removes the last semi-secret, saveLayer from the projected
ripple implementation.

Also fixes the HW test app to correctly demonstrate this projection
masking behavior.

Additionaly, alters PathTessellator to gracefully handle
counter-clockwise paths, and simplifies the work done by
ShadowTessellator to ensure all of its paths are counterclockwise.

Change-Id: Ibe9e12812bd10a774e20b1d444a140c368cbba8c
2015-05-26 17:53:16 -07:00
Chris Craik
9c3dd62d0f Limit path approximation recursion depth
bug:15369119
Change-Id: I6f009f5e8790129e1aa8a51e1fc6cdd1415dd617
2014-06-11 17:24:51 -07:00
Chris Craik
05f3d6e511 Tessellate on worker threads
Tessellate and cache (where possible) shadow and round rect
tessellation tasks.

Change-Id: I2cfda8e11d83d51ea74af871235cf26e8f831d40
2014-06-10 01:53:17 +00:00
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