| efb4b06493fe7b1604c762a448b13c7af2845a8d |
|
27-Feb-2017 |
Romain Guy <romainguy@google.com> |
Add ColorSpace information on Bitmap
This is the first step toward interpreting color spaces at render time.
Bug: 32984164
Test: BitmapColorSpaceTest in CtsGraphicsTestCases
Change-Id: I0164a18f1ed74a745874fe5229168042afe27a04
/frameworks/base/libs/hwui/Extensions.h
|
| 8762e332e3797fb41929a1c6069207f4906ca329 |
|
12-Oct-2016 |
Romain Guy <romainguy@google.com> |
Various fixes for linear blending and gradients
With linear blending turned off some textures were still
created as sRGB textures instead of linear textures.
Multi-stop gradients were not behaving properly on devices
with no support for float textures.
Gradients are now always interpolated in linear space
even if linear blending is off.
New functions to always force sRGB->linear->sRGB conversions.
Test: Manual testing
Bug: 29940137
Change-Id: Ie2f84ee2a65fd85570e88af813e841e0e625df6c
/frameworks/base/libs/hwui/Extensions.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/Extensions.h
|
| 1540153198fc59e5f344b363c198acf5b65251aa |
|
16-Nov-2015 |
John Reck <jreck@google.com> |
Extensions must load in ctor
Because Caches is terrible
Change-Id: I91e2442d97664759ee2c7602eb7172f009b20d53
/frameworks/base/libs/hwui/Extensions.h
|
| 704bed0da7cc75d0c517d425445de70ceb58060b |
|
05-Nov-2015 |
John Reck <jreck@google.com> |
add DeviceInfo
This reverts commit 096895550b9d5430d7a001d491566decf4f9791b.
Change-Id: Ib2ed1e96d8f7f88302f5e27fe735687194553104
/frameworks/base/libs/hwui/Extensions.h
|
| 096895550b9d5430d7a001d491566decf4f9791b |
|
05-Nov-2015 |
John Reck <jreck@google.com> |
Revert "add DeviceInfo"
This reverts commit b2442896e3a226c7ebe9d47fa80b257e98a6a34d.
Change-Id: I50f6555451f71067505245333c8e558b5e3b2b3b
/frameworks/base/libs/hwui/Extensions.h
|
| b2442896e3a226c7ebe9d47fa80b257e98a6a34d |
|
04-Nov-2015 |
John Reck <jreck@google.com> |
add DeviceInfo
Change-Id: I4c122278a7e88b6f47c4dd3c5fc553df7d3c900d
/frameworks/base/libs/hwui/Extensions.h
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| 6b50780363d3bb8db600c770183fa07677509ae8 |
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03-Nov-2015 |
John Reck <jreck@google.com> |
Remove almost-all android::Singleton users
Bug: 25426213
Change-Id: I88e6206e8915cce95c3a8a8a82a4bb8fbf668141
/frameworks/base/libs/hwui/Extensions.h
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| 6e6646c03788f198a9878763680c05342d7622f3 |
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15-Sep-2015 |
Chris Craik <ccraik@google.com> |
Unify extensions parsing behavior
Removes remnants of EGL extension support, and persistence of
GL extension list.
Change-Id: I35aec12d900bdb33549ea47654bb8146f350ef48
/frameworks/base/libs/hwui/Extensions.h
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| 149173d28c0843aba86b0810ce75b34be6a0d08f |
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10-Aug-2015 |
John Reck <jreck@google.com> |
Support new EGL extensions
Bug: 21753739
Includes a revert of 13d1b4ab10fbee5e81a2ba1ac59cfae1e51d3ef0
as that only supported EGL_EXT_buffer_age
Change-Id: Ia86a47d19e3355c067934d7764c330b640c6958d
/frameworks/base/libs/hwui/Extensions.h
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| b47ea9b2ed24f8eb6fc8b338555ff0d8825d8565 |
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04-Aug-2015 |
John Reck <jreck@google.com> |
am 2fa3eec0: am 93c14069: Merge "hwui: add extension to support unpack operations in OpenGL ES 2.0"
* commit '2fa3eec0e1807f6a45b71a41624698e8cc949026':
hwui: add extension to support unpack operations in OpenGL ES 2.0
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| d538d30e2f498de12a46e2aa3b0814c8d9526226 |
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04-Aug-2015 |
xiaozhengdong <xiaozhengdong@xiaomi.com> |
hwui: add extension to support unpack operations in OpenGL ES 2.0
OpenGL ES 3.0+ lets us specify the row length for unpack operations
such as glTexSubImage2D(). This allows us to upload a sub-rectangle
of a texture. Also, the GL_EXT_unpack_subimage extension can also
support this feature in OpenGL ES 2.0
Change-Id: Id43c2c55c5eaefbace67087c955f0b4324fb2c35
Signed-off-by: xiaozhengdong <xiaozhengdong@xiaomi.com>
/frameworks/base/libs/hwui/Extensions.h
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| 041b985dbb2f75aa492236d46ab47dbda8c2c74e |
|
25-Feb-2015 |
John Reck <jreck@google.com> |
Add null egl/gles stub support
Change-Id: I41372585202f69ef31a4ef95efc75fb7a1ff7289
/frameworks/base/libs/hwui/Extensions.h
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| 117bdbcfa3e8306dad21e7e01fa71b00cdfa7265 |
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05-Feb-2015 |
Chris Craik <ccraik@google.com> |
Glop ColorFilter & VertexBuffer support, initial enable
Enables Glop rendering for supported Rects and VertexBuffers
Also removes unused Query object
Change-Id: Ibe227bc362685a153159f75077664f0947764e06
/frameworks/base/libs/hwui/Extensions.h
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| 318ae7bb92869d99a05388c598ad105e7aa4cdbd |
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25-Sep-2013 |
Romain Guy <romainguy@google.com> |
Take SkBitmap's stride into account when uploading textures
Bug #10151807
Change-Id: I7ba4804fa3619088fea70eb55f10519fff0bf5f0
/frameworks/base/libs/hwui/Extensions.h
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| 7f4307668b10467ee39d41c7ea29cf1ff238a835 |
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13-Jun-2013 |
Romain Guy <romainguy@google.com> |
Add new Query class for debugging
This class can be used to perform occlusion queries. An occlusion query
can be used to test whether an object is entirely hidden or not.
Change-Id: Ida456df81dbe008a64d3ff4cb7879340785c6abf
/frameworks/base/libs/hwui/Extensions.h
|
| e9bc11f7121dbe373b0cbe5779ee6a12d824492c |
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23-May-2013 |
Romain Guy <romainguy@google.com> |
Add PerfHUD ES profiling capabilities
The eglGetSystemTimeNV extension can be used to enable profiling
in PerfHUD ES. When the delta of two calls to eglGetSystemTimeNV
equals 0, we now cancels display lists updates. This allows the
tool to redraw the same frame several times in a row to run its
analysis.
For better results profiling should only be attempted after
setting viewroot.profile_rendering to true using adb shell
setprop.
Change-Id: I02e3c237418004cff8d6cb0b9a37126efae44c90
/frameworks/base/libs/hwui/Extensions.h
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| 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/Extensions.h
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| df1dc28ba0c63b195016ad0453fc58025ee82acb |
|
30-Mar-2013 |
Romain Guy <romainguy@google.com> |
Add internal API to query GL version number
Change-Id: Idc02efc237b8e97445a9bab05c291bf193c7f279
/frameworks/base/libs/hwui/Extensions.h
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| 3bbacf27c0be1bae4e4483577fc89ae3113abe5d |
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07-Feb-2013 |
Romain Guy <romainguy@google.com> |
Add a RenderBuffer object to store stencil buffers.
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
/frameworks/base/libs/hwui/Extensions.h
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| 85ef80d8902afe8d26cb75fa7837fd9e6d019620 |
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14-Sep-2012 |
Romain Guy <romainguy@google.com> |
Foundation for tiling optimization
Change-Id: I4db32a4749f196472ba0dde7e102439d2ba4a3a7
/frameworks/base/libs/hwui/Extensions.h
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| 63553478130f78d44c8fbeaebc610e19925544a5 |
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19-Jul-2012 |
Romain Guy <romainguy@google.com> |
Remove vendor specific precision qualifier
Change-Id: I0a56ca7a5a399ec94993d3cea0c4aff6c0f86e39
/frameworks/base/libs/hwui/Extensions.h
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| dfa1046ecab165eb0daf5caa8475e993350f4a2b |
|
13-May-2012 |
Romain Guy <romainguy@google.com> |
Add call sites for OpenGL's debug label extension
Change-Id: I9c689127e8166cbef92c935f8aa07217ab806dda
/frameworks/base/libs/hwui/Extensions.h
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| 13631f3da855f200a151e7837ed9f6b079622b58 |
|
31-Jan-2012 |
Romain Guy <romainguy@google.com> |
Add debug markers to OpenGLRenderer
These markers will be used to group the GL commands by View in the
OpenGL ES debugging tool. This will help correlate individual GL
calls to higher level components like Views.
Change-Id: I73607ba2e7224a80ac32527968261ee008f049c6
/frameworks/base/libs/hwui/Extensions.h
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| 5baa3a62a97544669fba6d65a11c07f252e654dd |
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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/Extensions.h
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| 9c4b79af221b53f602f946faa9ff317a596a0c39 |
|
11-Nov-2011 |
Romain Guy <romainguy@google.com> |
Discard framebuffer rendering queues when discarding layers
Bug #5581817
Change-Id: Ie30700a29059d2ea60eb7bd3f8bd20ac48a149ab
/frameworks/base/libs/hwui/Extensions.h
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| 7077506f9945b87b02bdd47ffce75a5b813c821c |
|
14-Nov-2011 |
Dave Burke <daveburke@google.com> |
Revert "Discard framebuffer rendering queues when discarding layers"
This reverts commit da96f8ac2c1c35a54f3f36e6d776cb386a251d03.
/frameworks/base/libs/hwui/Extensions.h
|
| da96f8ac2c1c35a54f3f36e6d776cb386a251d03 |
|
11-Nov-2011 |
Romain Guy <romainguy@google.com> |
Discard framebuffer rendering queues when discarding layers
Bug #5581817
Change-Id: If612846ec5f7793710fc4df152791fb32c506551
/frameworks/base/libs/hwui/Extensions.h
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| a60c3889718f4513a6c9d8b80f655db5d6346905 |
|
02-Aug-2011 |
Romain Guy <romainguy@google.com> |
Use high precision iterators on specific GPUs
Bug #5098359
Change-Id: I52ee8c7b4c9e8d4c7bedb684eaf7bef6c44c74b9
/frameworks/base/libs/hwui/Extensions.h
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| 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/Extensions.h
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| a5aed0d58962a24c44728ffc46dc9e1ba2f9fda5 |
|
09-Sep-2010 |
Romain Guy <romainguy@google.com> |
Add support for advanced blend modes with the framebuffer.
This adds the ability to blend with the framebuffer using Darken,
Lighten, Add, Multiply, Overlay and Screen.
Change-Id: Iae01a53797d4ad39c373cba6ff2a42293129da1a
/frameworks/base/libs/hwui/Extensions.h
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| db1938e0e6ef816e228c815adccebd5cb05f2aa8 |
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03-Aug-2010 |
Romain Guy <romainguy@google.com> |
Add support for ColorFilters.
Color filters are fully supported and can be used with shaders.
Change-Id: Id90ccf1c81cb462f2431f366f3f8f710d7971e04
/frameworks/base/libs/hwui/Extensions.h
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| 51769a68a5cb34e9564740c6a854fcb93018789d |
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23-Jul-2010 |
Romain Guy <romainguy@android.com> |
Cleanup, added properties for the FontRenderer.
Change-Id: I909c74815d3ac394438ad8071d17fef5401dbeed
/frameworks/base/libs/hwui/Extensions.h
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| bd0e6aa0ff0bd8b376772c3e23513a6021bdda87 |
|
23-Jul-2010 |
Romain Guy <romainguy@google.com> |
Add a way to query GL extensions.
Change-Id: Ic27dbf72289dacf641b640a749fbd40c12cd474f
/frameworks/base/libs/hwui/Extensions.h
|