bug:10863163
This fixes two issues
The check for pure translation was incorrect. It was fixed and renamed
for clarity.
Certain matrix paths weren't setting kTypePositiveScale. For
simplicity (and because positive scale is simple to check) removed
flag in favor of dynamic checking.
Change-Id: Ic5ce235653ef49a68b8b242bd89fc2e95874ecc9
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
This optimization saves up to 0.3ms per frame on the Play Store's
front page, on a Nexus 4 device.
Change-Id: Iaa4ef33c6e3b37e175efd5b9eea9ef59b43f14f3
The renderer used to pre-cache glyphs at record time. This then changed
to pre-caching at the beginning of every frame. This unfortunately entails
a lot of duplicate work on every frame, which amounts to 0.5 to 1ms in
some stock applications.
This change is somewhere in the middle: pre-caching happens the first
time a DrawTextOp is deferred or every time the screen-space transform
is different from the last pre-caching operation.
Change-Id: Id6d9e2599d90a5b75010b0f0a28746befbf3c205
This change extracts the scale parameters of the current transform
to pass then to the font renderer. Rotation and perspective are
applied to the generated mesh inside the vertex shader. This limits
the number of glyphs we have to create in the font cache and thus
reduces memory churn.
Change-Id: Ic5b3bae2b2b0e0250a8ee723b071a1709725c749
The drawColorRects() method was clipping individual rectangles
using the wrong parameters left, top, right and bottom instead
of l, r, t and b. It also checked for count == 0 after the loop
when it should have checked for vertexCount == 0. The quickReject
is now not part of the loop since it's a bit overkill to perform
so many matrix multiplications. What we really care about is the
final quickReject performed on the max bounds of the entire set
of rectangles.
This change also replaces all instances of mSnapshot->transform
by currentTransform() to make the code slightly more readable.
Change-Id: I6485280414499716852f7dbfba186774eb6763d4
This change does not apply to drawPosText() and drawTextOnPath() yet.
Prior to this change, glyphs were always rasterized based on the
font size specified in the paint. All transforms were then applied
on the resulting texture. This creates rather ugly results when
text is scaled and/or rotated.
With this change, the font renderer will apply the current transform
matrix to the glyph before they are rasterized. This generates much
better looking results.
Change-Id: I0141b6ff18db35e1213e7a3ab9db1ecaf03d7a9c
Bug #7146141
When non-rectangular clipping occurs in a layer the render buffer
used as the stencil buffer is not cached. If this happens on a
View's hardware layer the render buffer will live for as long
as the layer is bound to the view. When a stencil buffer is
required because of a call to Canvas.saveLayer() it will be allocated
on every frame. A future change will address this problem.
If "show GPU overdraw" is enabled, non-rectangular clips are not
supported anymore and we fall back to rectangular clips instead.
This is a limitation imposed by OpenGL ES that cannot be worked
around at this time.
This change also improves the Matrix4 implementation to easily
detect when a rect remains a rect after transform.
Change-Id: I0e69fb901792d38bc0c4ca1bf9fdb02d7db415b9
Bug #7253839
1. Make sure we don't make GL calls while recording display lists
2. Disable an early and trivial clip optimization in font renderer
when a perspective transformation is used on the Canvas
Change-Id: I3f1052164239329346854f72d0a0d401fbfecf06
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
This change also adds full support for local transformation matrices on
sweep and radial gradients.
Change-Id: Id8773bc0766575190e3f3d51984fc5e57b266c3f
This change also modifies the way the clip is stored. The clip is now
always stored in screen-space coordinates.
Change-Id: I96375784d82dfe975bc6477a159e6866e7052487
Even though there's an implementation for textured rects, drawBitmap() is not
hooked up yet as it will require a good texture cache.
This method is implemented using FBOs. There's currently an issue either in the
driver or in the Canvas renderer that forces the FBO to be fullscreen, which is
extremely expensive and yields terrible performance.
Change-Id: I148419195e12d45653c60186938aa78c23a68e2c
The OpenGL ES 2.0 renderer can now draw colored rectangles. At least there's
something on screen now.
Change-Id: I80a13ccc1dd56784edf74f2670a364f30700234a
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
This change adds partial support for the following transforms:
- scale()
- translate()
- rotate()
- setMatrix()
- getMatrix()
The transform is stored in a snapshot and saved/restored as needed.
The transform is currently not applied to the clip rect and is not
mapped to the vertex shader.
Change-Id: Id48993453311200804149917d0c126a4d0471226
