This optimization saves up to 0.3ms per frame on the Play Store's
front page, on a Nexus 4 device.
Change-Id: Iaa4ef33c6e3b37e175efd5b9eea9ef59b43f14f3
Bug #9316260
The GL specification indicates that deleting a bound texture has
the side effect of binding the default texture (name=0). This change
replaces all calls to glDeleteTextures() by Caches::deleteTexture()
to properly keep track of texture bindings.
Change-Id: Ifbc60ef433e0f9776a668dd5bd5f0adbc65a77a0
This change uses a new OpenGL ES 3.0 feature to upload less data when
the font cache needs to be update. This can result in significant
performance improvements on device with large textures or with locales
that use a lot of glyphs (CJK for instance.)
This change also fixes various unpack alignment issues. The unpack
alignment, as well as the unpack row length, is not texture specific
but a global state that affect all glTex/SubImage2D calls. Some of
them were missing the appropriate glPixelStorei() call. This could
result in corrupted textures.
Change-Id: Iefb429d4d0d0b4e0faeadf27daafee6d30a21d85
Bug #8437401
A misplaced ref count decrement was causing a crash when attempting to
resize a layer to dimensions larger than the max texture size supported
by the GPU.
This change fixes the crash and clarifies the warnings to make it more
obvious what's happening.
Change-Id: I632dc1b90aaa2605969e10523491a81c4922d3dc
Bug #8378964
This change defers drawing into layers until after the renderer for FBO0
is ready to draw. At that point, all the precaching is done which means
all glyphs can be uploaded at once in the font caches.
Change-Id: Ie1f7a7ff30f76f06fb3dbc72c7d05e66207d1ecb
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
bug:4128442
Currently we fix T-junctions for hardware layers, and for
Canvas.saveLayer if the transform isn't rectAsRect. Ideally, hardware
layers should lazily re-generate T-junction free geometry if the
transform becomes non-rectAsRect
Depends on frameworks/native change:
https://googleplex-android-review.googlesource.com/#/c/277668/
which adds Region::createTJunctionFreeRegion()
Change-Id: Ice75b4a1a4459ff835059ea81d70f7d1563fd96d
Bug #7146141
This change is needed to add a render buffer cache to avoid
creating and destroying stencil buffers on every frame.
This change also allows the renderer to use a 1 bit or 4 bit
stencil buffer whenever possible.
Finally this change fixes a bug introduced by a previous CL
which causes the stencil buffer to not be updated in certain
conditions. The fix relies on a new optional parameter in
drawColorRects() that can be used to avoid performing a
quickReject on rectangles generated by the clip region.
Change-Id: I2f55a8e807009887b276a83cde9f53fd5c01199f
Bug #7146141
The GL_QCOM_tiled_rendering extension requires careful use of
start/endTiling when attaching a renderbuffer dynamically.
Change-Id: I20036683ed3909ffaf40cc3d57a25257e35b6fa2
Bug #7146141
This change moves the resizeLayer() from LayerCache (where it should
never have been anyway) to Layer. This makes a little more sense.
Change-Id: I8b2f9c19c558e738405a58b9e71ec5799fc6be88
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 #7326824
When a layer is taken out of the cache and initialized it gets cleared
to prepare it for future rendering. This triggers the following sequence
of operations:
glBindFramebuffer(layer.fbo)
attach texture storage to FBO
glClear()
glBindFramebuffer(defaultFbo)
The clear forces a resolve on tilers which stalls the CPU for a little
while, thus producing jank during animations. This change moves the
clear to the next frame when we know we will have to execute a resolve
anyway.
Change-Id: Ic1939c25df20ed65a4c48dc81ee549b2cd8b6ec3
Some logic depends on a default value of 0, which was not being
assigned.
Issue #7195815 chrome url bar is corrupted
Issue #7190656 Textures corrupted on mr1
Change-Id: I346b7b76e885bf8f04740e711fd88f917a5418c7
Launcher occasionally crashes with a stack trace indicating that the memory
of a Layer object is corrupt. It is possible for us to delete a Layer
structure and then, briefly, use it to draw a DisplayList again before
that DisplayList gets recreated (without the layer that got deleted).
When this happens, if the memory got corrupted, it's possible to crash.
The fix is to add Layer to the other objects which we currently refcount
(bitmaps, shaders, etc.). Then instead of deleting a Layer, we decrement the
refcount. We increment when creating it, then increment it again when it's
referenced from a DisplayList. Then we decrement the refcount instead of
deleting it, and decrement when we clear a DisplayList that refers to it.
Then when the refcount reaches 0, we delete it.
Issue #6994632 Native crash in launcher when trying to launch all apps screen
Change-Id: I0627be8d49bb2f9ba8d158a84b764bb4e7df934c
The pixel store pack alignment was not set for the source texture,
causing a write to occur outside of the destination bitmap's
bounds.
Change-Id: Iaa5767acf7b5943fbc2765c3810a142f06b1a796
You can setprop debug.hwui.show_layers_updates true to flash
hw layers in green when they update. This is also a setting
in the Dev. section of the settings app.
Change-Id: Ibe1d63a4f81567dc1d590c9b088d2e7505df8abf
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
A previous fix made it necessary for a frame to render something to GL
in order to cause a call to eglSwapBuffers(). Besides the calls being
tracked as part of issuing a DisplayList, there is also a potential call
to clear the canvas (via glClear()) on non-opaque surfaces. This call is also
good to track, since a surface that gets cleared without any other drawing operations
is worth flipping to the screen (to erase old contents on that surface).
This fix tracks the status of the pre-draw operations to find out whether
glClear() was called and then sets the drawing status appropriately.
Issue #6606422 QuickContact dismissal is janky again (Tracking)
Change-Id: I5fcaccfdc9293dd46b83f2fc279730a5d2740ebf
Bug #6258973
When flushing the layer caches we would attempt to delete the FBOs
associate with layers in the cache. The FBO property was however not
always properly cleared when recycling layers.
Change-Id: I7dedfe391d659a0849f1e1d84df17313b2c6e2b2
I don't know who's to blame, SGX or Tegra2 but one of those two GPUs is not
following the OpenGL ES 2.0 spec.
Change-Id: I2624e0efbc9c57d571c55c8b440a5e43f08a54f2
This change removes unnessary symbols. All symbols are hidden by
default, public APIs with exported symbols are explicitly marked
with ANDROID_API.
Change-Id: I692fde432a86c12108de1cfd1f6504919a7d5f3f
This method is invoked by TextureView.getBitmap() and failures must be
caught to avoid leaving the GL context in a potentially bad state.
Change-Id: I620de395ba1bc20154de58c81963223dc55cac78
