bug:10761696
Avoids a case where a rect with top coordinate of (e.g.) 0.51f is
assumed to not draw in the first row of pixels, which leads to it not
being clipped. Since rounding can cause it to render in this first
pixel anyway, we very slightly expand geometry bounds.
Now, in ambiguous cases, the geometry bounds are expanded so clipping
is more likely to happen.
Change-Id: I119b7c7720de07bac1634549724ffb63935567fc
By having quickReject round out the window-space geometry bounds, we
prevent the AA perimeter (which falls outside the local bounds passed
in) from drawing outside the clip.
Change-Id: I8ee36be9039a9c47906815ee2f0dbaa5eb910b82
bug:8965976
Also consolidates quickReject scissor-ing and scissor-less paths.
Renamed plain 'quickReject' method, as it has sideEffects beyond what
the java and skia canvases do.
Change-Id: I4bdf874d3c8f469d283eae1e71c5e7ea53d47016
bug:8951267
If an opaque op, or group of opaque ops covers the invalidate region,
skip draw operations that precede it.
Clipped operations may now be merged, but only if they share a
clipRect - this is a very case for e.g. ListView, where all background
elements may now be a part of the same MergingDrawBatch.
It is this more aggressive merging that groups together clipped
background elements in the ListView case, enabling the overdraw
avoidance skipping the window background.
Change-Id: Ib0961977e272c5ac37f59e4c67d828467422d259
bug:8037003
The reordering enables similar operations to draw together, minimizing the
OpenGL state change operations that go inbetween draws. Eventually, multiple
complete canvas draw operations will be merged (into a single glDrawArrays call,
for example)
Reorders DisplayList draw operations when:
-They can move backwards in the command stream to be after similar
operations without violating draw ordering
-The OpenGLRenderer is in a simple, replayable state (no complex clip,
or filter/shadow etc)
Also adds two system properties to control the deferral/reordering:
"debug.hwui.disable_draw_defer"
"debug.hwui.disable_draw_reorder"
which can be set to "true" to control the display list manipulation
Change-Id: I5e89f3cb0ea2d2afd3e15c64d7f32b8406777a32
bug:8037003
Changes the DisplayList from using stream read/write commands to use an array of
objects manually allocated on a linear buffer.
Depends on frameworks/native change https://googleplex-android-review.googlesource.com/#/c/257695/ which adds LinearAllocator
Also changes drawRects to use float count instead of rect count, to be more like drawLines/drawPoints
Change-Id: Ia2e4a11acd8f0a757042a05cbc9e7563cb73ee47
This change improves execution of display lists, particularly on
tiled renderers. The goal is to disable the scissor test as
often as possible. Drawing commands are rarely clipped by View
bounds so most of them can be drawn without doing a scissor test.
The speed improvements scale with the number of views and drawing
commands.
Change-Id: Ibd9b5e051a3e4300562463805acc4fd744ba6266
- we want functions like isEmpty() to return true if NANs are
involved in the Rect
- also clean-up the intersect familly of calls
- minor cleanup in the int32_t Rect as well
These played a role in http://b/5331198.
Bug: 5331198
Change-Id: I5369725ab482e4b83da9f1bd4cee5256e5de75b2
This optimization is currently disabled until Launcher is
modified to take advantage of it. The optimization can be
enabled by turning on RENDER_LAYERS_AS_REGIONS in the
OpenGLRenderer.h file.
Change-Id: I2fdf59d0f4dc690a3d7f712173ab8db3848b27b1
A change was made earlier in the renderer to not snap the current clip rect
on every clip operation. The clip rect must not be snapped to pixel boundaries
before being used for pixel precision operations. Some operations were doing
this correctly, others were not. For instance, a layer was always created by
rounding to the correct pixels, but composing a layer was done with a non
rounded clip, thus resulting in slightly odd behaviors.
Change-Id: I31c2cf0a343450470bcd449c3f13fe37648b9c7c
This change also modifies the way the clip is stored. The clip is now
always stored in screen-space coordinates.
Change-Id: I96375784d82dfe975bc6477a159e6866e7052487
This change also refactors the code base a bit by moving classes out of
OpenGLRenderer into separate headers/implementations. This makes the code
more manageable.
This change also adds documentation for implementation methods. The
undocumented methods are simply Skia's Canvas methods.
Change-Id: I54c68b443580a0129251dddc1a7ac95813d5289e
Drawing two rectangles one after the other discards the second one because of
Z buffering issues. This will be fixed in another changelist.
Change-Id: Ida1b3cde8a78e60cacc07e477abc44def527ff67
The current implementation of clipRect() does not apply local transformations
before setting the new clip.
Change-Id: I5997871bb638dfcd1a8ef96354846af52427e445
