| 03240107a54c8a0ad1e7e496c81182eb5a086f89 |
|
02-Dec-2016 |
John Reck <jreck@google.com> |
Delete dead code
Test: none, it's unused code
Change-Id: If25f4f22d8f3a9819f673bacce9ad4c213dd73ed
/frameworks/base/libs/hwui/PatchCache.h
|
| 253f2c213f6ecda63b6872aee77bd30d5ec07c82 |
|
29-Sep-2016 |
Romain Guy <romainguy@google.com> |
Linear blending, step 1
NOTE: Linear blending is currently disabled in this CL as the
feature is still a work in progress
Android currently performs all blending (any kind of linear math
on colors really) on gamma-encoded colors. Since Android assumes
that the default color space is sRGB, all bitmaps and colors
are encoded with the sRGB Opto-Electronic Conversion Function
(OECF, which can be approximated with a power function). Since
the power curve is not linear, our linear math is incorrect.
The result is that we generate colors that tend to be too dark;
this affects blending but also anti-aliasing, gradients, blurs,
etc.
The solution is to convert gamma-encoded colors back to linear
space before doing any math on them, using the sRGB Electo-Optical
Conversion Function (EOCF). This is achieved in different
ways in different parts of the pipeline:
- Using hardware conversions when sampling from OpenGL textures
or writing into OpenGL frame buffers
- Using software conversion functions, to translate app-supplied
colors to and from sRGB
- Using Skia's color spaces
Any type of processing on colors must roughly ollow these steps:
[sRGB input]->EOCF->[linear data]->[processing]->OECF->[sRGB output]
For the sRGB color space, the conversion functions are defined as
follows:
OECF(linear) :=
linear <= 0.0031308 ? linear * 12.92 : (pow(linear, 1/2.4) * 1.055) - 0.055
EOCF(srgb) :=
srgb <= 0.04045 ? srgb / 12.92 : pow((srgb + 0.055) / 1.055, 2.4)
The EOCF is simply the reciprocal of the OECF.
While it is highly recommended to use the exact sRGB conversion
functions everywhere possible, it is sometimes useful or beneficial
to rely on approximations:
- pow(x,2.2) and pow(x,1/2.2)
- x^2 and sqrt(x)
The latter is particularly useful in fragment shaders (for instance
to apply dithering in sRGB space), especially if the sqrt() can be
replaced with an inversesqrt().
Here is a fairly exhaustive list of modifications implemented
in this CL:
- Set TARGET_ENABLE_LINEAR_BLENDING := false in BoardConfig.mk
to disable linear blending. This is only for GLES 2.0 GPUs
with no hardware sRGB support. This flag is currently assumed
to be false (see note above)
- sRGB writes are disabled when entering a functor (WebView).
This will need to be fixed at some point
- Skia bitmaps are created with the sRGB color space
- Bitmaps using a 565 config are expanded to 888
- Linear blending is disabled when entering a functor
- External textures are not properly sampled (see below)
- Gradients are interpolated in linear space
- Texture-based dithering was replaced with analytical dithering
- Dithering is done in the quantization color space, which is
why we must do EOCF(OECF(color)+dither)
- Text is now gamma corrected differently depending on the luminance
of the source pixel. The asumption is that a bright pixel will be
blended on a dark background and the other way around. The source
alpha is gamma corrected to thicken dark on bright and thin
bright on dark to match the intended design of fonts. This also
matches the behavior of popular design/drawing applications
- Removed the asset atlas. It did not contain anything useful and
could not be sampled in sRGB without a yet-to-be-defined GL
extension
- The last column of color matrices is converted to linear space
because its value are added to linear colors
Missing features:
- Resource qualifier?
- Regeneration of goldeng images for automated tests
- Handle alpha8/grey8 properly
- Disable sRGB write for layers with external textures
Test: Manual testing while work in progress
Bug: 29940137
Change-Id: I6a07b15ab49b554377cd33a36b6d9971a15e9a0b
/frameworks/base/libs/hwui/PatchCache.h
|
| 846799d693adc83ba973d8fef6d73dc53a994d1d |
|
22-Jul-2016 |
Stephen Hines <srhines@google.com> |
resolve merge conflicts of f53bfc9 to master
Change-Id: Idb454415b166b2ff215c604475dd9129958e7edd
|
| 05160d70d14180fef3782a63dff2e822b51c3cf5 |
|
22-Jul-2016 |
Chih-Hung Hsieh <chh@google.com> |
resolve merge conflicts of 5152fd9 to stage-aosp-master
Change-Id: I2066125eb4076dbc9e8996bb1fa87735aa6040d3
|
| faecb78a6b11c780db47bc940ca7662899ab5d5e |
|
21-Jul-2016 |
Chih-Hung Hsieh <chh@google.com> |
Fix google-explicit-constructor warnings in frameworks/base
* Add explicit keyword to conversion constructors.
* Add NOLINT to implicit conversion constructors.
Bug: 28341362
Test: build with clang-tidy
Change-Id: Ie4d37072ab57d1662d18db4de1c8577247f43337
/frameworks/base/libs/hwui/PatchCache.h
|
| 5e00c7ce063116c11315639f0035aca8ad73e8cc |
|
07-Jul-2016 |
Chris Craik <ccraik@google.com> |
Delete old rendering pipeline
fixes: 30002246
Change-Id: I45df0e924708526cee045b14c291bd23aa1a92db
/frameworks/base/libs/hwui/PatchCache.h
|
| fd3744b7d88d0015cfb36be2b485c4b6ba0c1b58 |
|
12-May-2016 |
sergeyv <sergeyv@google.com> |
Move gl calls from PatchCache to MeshState
bug:27358166
Change-Id: I5f544f497e9480e64faa2ddd369eb16318e82dc3
/frameworks/base/libs/hwui/PatchCache.h
|
| 48a8f431fa52ae2ee25ffba9d20676f03bb710ff |
|
06-Feb-2016 |
Chris Craik <ccraik@google.com> |
Move several property queries to Properties class
bug:17478770
This removes a lot of redundant property query code, and puts the
queries all in one place, so defining them automatically will be simpler
in the future.
Change-Id: I0428550e6081f07bc6554ffdf73b22284325abb8
/frameworks/base/libs/hwui/PatchCache.h
|
| 8820fd1d82acaefda98ae73ccf61413d5044f9f3 |
|
03-Mar-2015 |
Chris Craik <ccraik@google.com> |
Patch cleanup, reenable Patch Glops
bug:19597454
Change-Id: If12b95e83588b81a553210cd8c2437c6c771073a
/frameworks/base/libs/hwui/PatchCache.h
|
| 96a5c4c7bab6718524de7253da8309143ab48bef |
|
28-Jan-2015 |
Chris Craik <ccraik@google.com> |
Move more GL state management to RenderState and its directory
Change-Id: Ic68584e1c08dc64be2ad43450cb6caa1de834fdc
/frameworks/base/libs/hwui/PatchCache.h
|
| e84a208317e0ed388fcdad1e6743c7849acb51b0 |
|
22-Dec-2014 |
Chris Craik <ccraik@google.com> |
Add overrides and switch to nullptr keyword
Changes generated with clang-modernize.
Additionally, fixed some struct-vs-class usage to make clang happy.
Change-Id: Ic6ef2427401ff1e794d26f21f7b44868fc75fb72
/frameworks/base/libs/hwui/PatchCache.h
|
| 2dc236b2bae13b9a0ed9b3f7320502aecd7983b3 |
|
15-Oct-2014 |
Tom Hudson <tomhudson@google.com> |
Clean up physical coupling
Narrow the use of #include directives in hwui, replacing with forward
declarations where straightforward. Speeds compiles; doesn't do any
restructuring of code.
Change-Id: Icac2baffb5896f55d8c6718e9bd9d4bfa02d3ca0
/frameworks/base/libs/hwui/PatchCache.h
|
| e3b0a0117a2ab4118f868a731b238fe8f2430276 |
|
27-Jun-2013 |
Romain Guy <romainguy@google.com> |
Refcount 9-patches and properly handle GC events
This change adds refcounting of Res_png_9patch instances, the native
data structure used to represent 9-patches. The Dalvik NinePatch class
now holds a native pointer instead of a Dalvik byte[]. This pointer
is used whenever we need to draw the 9-patch (software or hardware.)
Since we are now tracking garbage collection of NinePatch objects
libhwui's PatchCache must keep a list of free blocks in the VBO
used to store the meshes.
This change also removes unnecessary instances tracking from
GLES20DisplayList. Bitmaps and 9-patches are refcounted at the
native level and do not need to be tracked by the Dalvik layer.
Change-Id: Ib8682d573a538aaf1945f8ec5a9bd5da5d16f74b
/frameworks/base/libs/hwui/PatchCache.h
|
| 4c2547fa9244e78115cde0a259291053108c3dc7 |
|
12-Jun-2013 |
Romain Guy <romainguy@google.com> |
Avoid 9patch cache lookups when possible
This optimization saves up to 0.3ms per frame on the Play Store's
front page, on a Nexus 4 device.
Change-Id: Iaa4ef33c6e3b37e175efd5b9eea9ef59b43f14f3
/frameworks/base/libs/hwui/PatchCache.h
|
| 7d9b1b3c02eb1ffd99742ecb7b69e3ab97d2ba18 |
|
28-May-2013 |
Romain Guy <romainguy@google.com> |
Re-initialize the 9patch cache if cleared with onTrimMemory
The 9aptch cache was reinitialized after destroying/recreating
the EGL context but not after clearing it during a normal
memory trim.
Change-Id: If6155bfc8a62439e9878bc742a4766b3bd6c6aec
/frameworks/base/libs/hwui/PatchCache.h
|
| 3b748a44c6bd2ea05fe16839caf73dbe50bd7ae9 |
|
18-Apr-2013 |
Romain Guy <romainguy@google.com> |
Pack preloaded framework assets in a texture atlas
When the Android runtime starts, the system preloads a series of assets
in the Zygote process. These assets are shared across all processes.
Unfortunately, each one of these assets is later uploaded in its own
OpenGL texture, once per process. This wastes memory and generates
unnecessary OpenGL state changes.
This CL introduces an asset server that provides an atlas to all processes.
Note: bitmaps used by skia shaders are *not* sampled from the atlas.
It's an uncommon use case and would require extra texture transforms
in the GL shaders.
WHAT IS THE ASSETS ATLAS
The "assets atlas" is a single, shareable graphic buffer that contains
all the system's preloaded bitmap drawables (this includes 9-patches.)
The atlas is made of two distinct objects: the graphic buffer that
contains the actual pixels and the map which indicates where each
preloaded bitmap can be found in the atlas (essentially a pair of
x and y coordinates.)
HOW IS THE ASSETS ATLAS GENERATED
Because we need to support a wide variety of devices and because it
is easy to change the list of preloaded drawables, the atlas is
generated at runtime, during the startup phase of the system process.
There are several steps that lead to the atlas generation:
1. If the device is booting for the first time, or if the device was
updated, we need to find the best atlas configuration. To do so,
the atlas service tries a number of width, height and algorithm
variations that allows us to pack as many assets as possible while
using as little memory as possible. Once a best configuration is found,
it gets written to disk in /data/system/framework_atlas
2. Given a best configuration (algorithm variant, dimensions and
number of bitmaps that can be packed in the atlas), the atlas service
packs all the preloaded bitmaps into a single graphic buffer object.
3. The packing is done using Skia in a temporary native bitmap. The
Skia bitmap is then copied into the graphic buffer using OpenGL ES
to benefit from texture swizzling.
HOW PROCESSES USE THE ATLAS
Whenever a process' hardware renderer initializes its EGL context,
it queries the atlas service for the graphic buffer and the map.
It is important to remember that both the context and the map will
be valid for the lifetime of the hardware renderer (if the system
process goes down, all apps get killed as well.)
Every time the hardware renderer needs to render a bitmap, it first
checks whether the bitmap can be found in the assets atlas. When
the bitmap is part of the atlas, texture coordinates are remapped
appropriately before rendering.
Change-Id: I8eaecf53e7f6a33d90da3d0047c5ceec89ea3af0
/frameworks/base/libs/hwui/PatchCache.h
|
| 13ba0054846ce630ca31e8f26169fd9388faee02 |
|
15-Feb-2013 |
Romain Guy <romainguy@google.com> |
Remove obsolete header file
We now use the same mechanism to compare keys everywhere in libhwui.
Change-Id: I8b3cb25b13f4f38eb6f12aed0356f796a773617c
/frameworks/base/libs/hwui/PatchCache.h
|
| 5baa3a62a97544669fba6d65a11c07f252e654dd |
|
20-Dec-2011 |
Steve Block <steveblock@google.com> |
Rename (IF_)LOGD(_IF) to (IF_)ALOGD(_IF) DO NOT MERGE
See https://android-git.corp.google.com/g/156016
Bug: 5449033
Change-Id: I4c4e33bb9df3e39e11cd985e193e6fbab4635298
/frameworks/base/libs/hwui/PatchCache.h
|
| e5df231434357424cea8d2b8d0cdf31253a98110 |
|
12-Aug-2011 |
Romain Guy <romainguy@google.com> |
Make sure we correctly copy caches keys.
Bug #5136067
Change-Id: I366e840bef44415436dc7b13d89cfb610feed663
/frameworks/base/libs/hwui/PatchCache.h
|
| 25dc3a7dbac2f90f5144035e9c8ed99c09cc3132 |
|
10-Dec-2010 |
Romain Guy <romainguy@google.com> |
Correctly compare strings in UTF-8 instead of UTF-16
Bug #3272858
Change-Id: Idacd5d7c2c052b4834a8ddb5906ab32b3f548f73
/frameworks/base/libs/hwui/PatchCache.h
|
| 6f72bebe92a4db7b5dc83f4ac5b5fd02e3b4e2cd |
|
30-Nov-2010 |
Romain Guy <romainguy@google.com> |
Update 9patch structure when rendering with different divs/colors.
Bug #3221488
Change-Id: Ifc9e42a991d630feadc9e8032322f37504d09d6d
/frameworks/base/libs/hwui/PatchCache.h
|
| c15008e72ec00ca20a271c3006dac649fd07533b |
|
10-Nov-2010 |
Romain Guy <romainguy@google.com> |
Move all debug flags in a single place.
This change also adds a new memory usage flag. When turned on, the
following is printed after every frame:
D/OpenGLRenderer( 3723): Current memory usage / total memory usage (bytes):
D/OpenGLRenderer( 3723): TextureCache 3766680 / 20971520
D/OpenGLRenderer( 3723): LayerCache 3538944 / 8388608
D/OpenGLRenderer( 3723): GradientCache 135168 / 524288
D/OpenGLRenderer( 3723): PathCache 41180 / 4194304
D/OpenGLRenderer( 3723): TextDropShadowCache 0 / 2097152
D/OpenGLRenderer( 3723): FontRenderer 0 262144 / 262144
D/OpenGLRenderer( 3723): FontRenderer 1 262144 / 262144
D/OpenGLRenderer( 3723): FontRenderer 2 262144 / 262144
D/OpenGLRenderer( 3723): Other:
D/OpenGLRenderer( 3723): FboCache 2 / 12
D/OpenGLRenderer( 3723): PatchCache 31 / 512
D/OpenGLRenderer( 3723): Total memory usage:
D/OpenGLRenderer( 3723): 8268404 bytes, 7.89 MB
This should help tracking possibe memory issues.
Change-Id: I83f483ca1d2dbef904829bce368e33fe5503e8d6
/frameworks/base/libs/hwui/PatchCache.h
|
| 5b3b35296e8b2c8d3f07d32bb645d5414db41a1d |
|
28-Oct-2010 |
Romain Guy <romainguy@google.com> |
Optimize FBO drawing with regions.
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
/frameworks/base/libs/hwui/PatchCache.h
|
| 1f114a55b5eaaa81bd302c9ad851362512b61e2f |
|
13-Oct-2010 |
Romain Guy <romainguy@google.com> |
Remove logging.
Change-Id: Ibcb11d704653d8875e22629ea39e4ee2ebce3c22
/frameworks/base/libs/hwui/PatchCache.h
|
| 4bb942083a0d4db746adf95349108dd8ef842e32 |
|
13-Oct-2010 |
Romain Guy <romainguy@google.com> |
Optimize 9patch rendering.
This change detects empty quads in 9patches and removes them from
the mesh to avoid unnecessary blending.
Change-Id: I4500566fb4cb6845d64dcb59b522c0be7a0ec704
/frameworks/base/libs/hwui/PatchCache.h
|
| 2728f961614a385df1f056fc24803a9f65c90fab |
|
09-Oct-2010 |
Romain Guy <romainguy@google.com> |
Don't update 9patches on every frame.
Change-Id: I7ffb2365f83e0453e7d0a0cdcb3fc9308b305238
/frameworks/base/libs/hwui/PatchCache.h
|
| 4aa90573bbf86db0d33a3a790c5dbd0d93b95cfe |
|
27-Sep-2010 |
Romain Guy <romainguy@google.com> |
Adding display lists to the GL renderer (checkpoint.)
Change-Id: Iaa49757600a53b39369dbb23f8c3feab282518e6
/frameworks/base/libs/hwui/PatchCache.h
|
| 9aaa8269a3e7291aab84d01c3fc9c744d8f2d2f4 |
|
09-Sep-2010 |
Romain Guy <romainguy@google.com> |
Fix possible infinite loop when purging textures.
Change-Id: Ib05b398ae03e734da2dab0496df416fed4570b1c
/frameworks/base/libs/hwui/PatchCache.h
|
| fb8b763f762ae21923c58d64caa729b012f40e05 |
|
24-Aug-2010 |
Romain Guy <romainguy@google.com> |
Use only one GL context per process, share chaches.
Change-Id: Ieabaa25338d2f4b8d4fd90e7401ad6e7452eae11
/frameworks/base/libs/hwui/PatchCache.h
|
| f7f93556c8fcc640ab5adef79d021a80a72a645a |
|
09-Jul-2010 |
Romain Guy <romainguy@google.com> |
Draw n-patches using OpenGL.
Currently only tested with title bars and buttons.
Change-Id: I8263a9281898dc0e943b1b8412827fe55639b9d6
/frameworks/base/libs/hwui/PatchCache.h
|