| 66c3a829dc129b6081979facf5a652d5d9f1f51a |
|
25-Apr-2017 |
Chris Craik <ccraik@google.com> |
Fix include
Bug: 35387665
Test: builds with HWUI_ENABLE_OPENGL_VALIDATION := false
Dependency on gl3.h was added while that header was auto-included for
error checking purposes. Add the include to enable us to disable gl
error checking.
Change-Id: Ic969da716e2323f8e42d20da8fd0a6fa653f9775
/frameworks/base/libs/hwui/Texture.h
|
| caaaa66e57293e4a6f312649bf472eab84d5c7fe |
|
27-Mar-2017 |
Romain Guy <romainguy@google.com> |
Convert bitmaps to sRGB/scRGB when they have a color profile
This change also fixes an issue with RGBA16F bitmaps when modulated
with a color (for instance by setting an alpha on the Paint object).
The color space conversion is currently done entirely in the shader,
by doing these operations in order:
1. Sample the texture
2. Un-premultiply alpha
3. Apply the EOTF
4. Multiply by the 3x3 color space matrix
5. Apply the OETF
6. Premultiply alpha
Optimizations:
- Steps 2 & 6 are skipped for opaque (common) bitmaps
- Step 3 is skipped when the color space's EOTF is close
to sRGB (Display P3 for instance). Instead, we use
a hardware sRGB fetch (when the GPU supports it)
- When step 3 is necessary, we use one of four standard
EOTF implementations, to save cycles when possible:
+ Linear (doesn't do anything)
+ Full parametric (ICC parametric curve type 4 as defined
in ICC.1:2004-10, section 10.15)
+ Limited parametric (ICC parametric curve type 3)
+ Gamma (ICC parametric curve type 0)
Color space conversion could be done using texture samplers
instead, for instance 3D LUTs, with or without transfer
functions baked in, or 1D LUTs for transfer functions. This
would result in dependent texture fetches which may or may
not be an advantage over an ALU based implementation. The
current solution favor the use of ALUs to save precious
bandwidth.
Test: CtsUiRenderingTests, CtsGraphicsTests
Bug: 32984164
Change-Id: I10bc3db515e13973b45220f129c66b23f0f7f8fe
/frameworks/base/libs/hwui/Texture.h
|
| 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/Texture.h
|
| 636afc1877882dc9cf73b49f8a68c73cc418d8cd |
|
07-Feb-2017 |
Romain Guy <romainguy@google.com> |
Apply transfer function when rendering with linear textures
RGBA16F bitmaps are always encoded in linear space, which means we must
apply the opto-electronic transfer function before we can render them
in the framebuffer.
Since our linear bitmaps are assumed to be scRGB, values can be negative.
The OETF is a slightly modified sRGB OETF:
sign(x) * OETF_sRGB(abs(x))
This effectively mirrors the OETF over the negative domain.
This CL also removes the "optimized" shader generation path. With
current compilers, the optimized path doesn't do anything of value
and makes ProgramCache difficult to maintain. Shader compilers inline
everything and are really good at folding expressions and removing
unused code.
Bug: 32984164
Test: CtsUiRenderingTestCases
Change-Id: Ieb458ad53574e3a8959aa6bccbbd2d1fe203cbc5
/frameworks/base/libs/hwui/Texture.h
|
| 8cd3edfa15cc9cdbffa935d19ab894426b08d174 |
|
09-Jan-2017 |
Greg Daniel <egdaniel@google.com> |
Break Layer class into Gl and Vulkan subclasses
Test: manual testing
Change-Id: Ibd2beed39de3ac6da7448e96496253cfe427dfbb
/frameworks/base/libs/hwui/Texture.h
|
| 694d499662838123f474f41b31dea84ec5d563f0 |
|
27-Oct-2016 |
sergeyv <sergeyv@google.com> |
Routine to upload hardware bitmaps
Change-Id: Id8283a0975325e6830d55fd1e33c5f292a1e9be0
Test: refactoring cl.
bug:30999911
/frameworks/base/libs/hwui/Texture.h
|
| 2a38c42e921451abebb4ee5f5ecd738f1b6b04ed |
|
26-Oct-2016 |
sergeyv <sergeyv@google.com> |
Add target to texture
Test: refactoring cl.
bug:32413624
Change-Id: I94b1c31cd4e0712dfcfd7777a0012424c1bf0dca
/frameworks/base/libs/hwui/Texture.h
|
| 98fa4f9e7b33a3004ce9142c9acd4300391b9a0e |
|
25-Oct-2016 |
sergeyv <sergeyv@google.com> |
Use Bitmap in Texture.upload
Test: refactoring cl.
bug:32216791
Change-Id: Ib0b16c878d8371e0471e9a502f55626ec5999c60
/frameworks/base/libs/hwui/Texture.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/Texture.h
|
| 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/Texture.h
|
| 48247a2956f34d5d709660869273e0f7356e42b6 |
|
22-Jan-2016 |
John Reck <jreck@google.com> |
Fix mismatch in assumed defaults vs. actual defaults
Bug: 26584230
Change-Id: Ia0271b097a40123c18f6b3540c1168cba109b5ce
/frameworks/base/libs/hwui/Texture.h
|
| 38e0c32852e3b9d8ca4a9d3791577f52536419cb |
|
10-Nov-2015 |
John Reck <jreck@google.com> |
Track texture memory globally
Also mostly consolidates texture creation
Change-Id: Ifea01303afda531dcec99b8fe2a0f64cf2f24420
/frameworks/base/libs/hwui/Texture.h
|
| 386aa031793bb037ec43b6cdbd8908c343cc86cb |
|
08-Dec-2015 |
Chris Craik <ccraik@google.com> |
Add more shape drawing to new reorderer/renderer
bug:22480459
Add support for outsetting final bounds based on stroke.
Change-Id: I659318ccec51882bba1906ce3c7042288ce35c30
/frameworks/base/libs/hwui/Texture.h
|
| 00e79c9947b741194ff6c0d08ede9b3befbf9c9d |
|
21-Jul-2015 |
John Reck <jreck@google.com> |
Mark isInUse per-window
Bug: 22509159
Change-Id: I0ae0f1fa582ee38dcb9f24ca20f0b4d0c57ccb32
/frameworks/base/libs/hwui/Texture.h
|
| e2bb380bc26749782c873e5488cfdf4e42b27346 |
|
13-Mar-2015 |
Chris Craik <ccraik@google.com> |
Use glops for text rendering
Change-Id: I5e155c8baf3149f0ff231ec3c89dbff6bb8eae92
/frameworks/base/libs/hwui/Texture.h
|
| 8e93a7c9377b4ae43ecfb408f4906a09f6c83c03 |
|
23-Feb-2015 |
Chris Craik <ccraik@google.com> |
Simplify Texture member initialization
Change-Id: Iaaa6dd20e64a0a075d732b101e3c4278cad44047
/frameworks/base/libs/hwui/Texture.h
|
| 860d155f866cc15a725e7ce03763280987f24901 |
|
12-Apr-2014 |
John Reck <jreck@google.com> |
Fix issue with bitmap uploading
Bug: 13912749
Change-Id: Ic23fa1d280118dc93dc2716a4a24cc0bbbdca595
/frameworks/base/libs/hwui/Texture.h
|
| be1b127c7bec252e0c6ab0e06ed6babed07d496f |
|
06-Jun-2013 |
Romain Guy <romainguy@google.com> |
Assume a texture is unbound after deleting it
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
/frameworks/base/libs/hwui/Texture.h
|
| 8aa195d7081b889f3a7b1f426cbd8556377aae5e |
|
05-Jun-2013 |
Romain Guy <romainguy@google.com> |
Introduce Caches::bindTexture() to reduce glBindTexture calls
Change-Id: Ic345422567c020c0a9035ff51dcf2ae2a1fc59f4
/frameworks/base/libs/hwui/Texture.h
|
| a404e16e4933857464046d763ed7629cd0c86cbf |
|
25-May-2013 |
Romain Guy <romainguy@google.com> |
Make sure atlas antries can correctly filter/wrap textures
The virtual textures would each have their own values for wrapping
and filtering which could lead to conflict and/or extraneous GL
commands being issued.
Change-Id: I64cb59a03e598f46bf645bd1d30fccfa63a07431
/frameworks/base/libs/hwui/Texture.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/Texture.h
|
| 713e1bb9df6bdfc21bd5c40d1a6ecf6c822a4be5 |
|
17-Oct-2012 |
Romain Guy <romainguy@google.com> |
Add API to enable mipmaps on Bitmap
Bug #7353771
This API can be used when scaling large images down to a small size
to get nicer looking results.
Change-Id: If09087eed36077eee5355f6047a3ca67747d7d9e
/frameworks/base/libs/hwui/Texture.h
|
| 98d3a64ffa13596e3ea9125bbff40c51ec96bd8d |
|
26-Sep-2012 |
Chet Haase <chet@google.com> |
Assign default texture id of 0
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
/frameworks/base/libs/hwui/Texture.h
|
| 39d252a6632d057d5077f7eaf1b8ed7a142f3397 |
|
13-Dec-2011 |
Romain Guy <romainguy@google.com> |
Various OpenGL optimizations
Change-Id: Ib0742c96f10f5f50e7e5148b742c31b6c232d127
/frameworks/base/libs/hwui/Texture.h
|
| d21b6e1fe337b35f62cf2028e9bd0637fd009a75 |
|
01-Dec-2011 |
Romain Guy <romainguy@google.com> |
Optimize away unnecessary state changes
Change-Id: I0f6816f9f6234853575ecee5033186ad19e76380
/frameworks/base/libs/hwui/Texture.h
|
| e3c26851dc315b730ea0fe5ef35bb1db81f6d675 |
|
26-Jul-2011 |
Romain Guy <romainguy@google.com> |
Improve rendering performance on some GPUs
This change sets textures filtering to GL_NEAREST by default. GL_LINEAR
filtering is only used when textures are transformed with a scale or
a rotation. This helps save a couple of fps on some GPUs.
Change-Id: I1efaa452c2c79905f00238e54d886a37203a2ac1
/frameworks/base/libs/hwui/Texture.h
|
| 9ace8f5e79e76893fe4ca9e4d10f6c4056330485 |
|
08-Jul-2011 |
Romain Guy <romainguy@google.com> |
Use NEAREST filtering for layers whenever possible.
Change-Id: Id5bee1bd4a322cf93e8000b08e18f1e1b058648e
/frameworks/base/libs/hwui/Texture.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/Texture.h
|
| 8164c2d338781c3a3c4a443941070dca5d88f2a7 |
|
26-Oct-2010 |
Romain Guy <romainguy@google.com> |
Don't change textures wrap modes on every draw.
Change-Id: If6d3f313778cc7f3e803a063338539c8b3e165e3
/frameworks/base/libs/hwui/Texture.h
|
| 9aaa8269a3e7291aab84d01c3fc9c744d8f2d2f4 |
|
09-Sep-2010 |
Romain Guy <romainguy@google.com> |
Fix possible infinite loop when purging textures.
Change-Id: Ib05b398ae03e734da2dab0496df416fed4570b1c
/frameworks/base/libs/hwui/Texture.h
|
| 22158e139a3d6c6a9787ca0de224e9368f643284 |
|
06-Aug-2010 |
Romain Guy <romainguy@google.com> |
Automatically cleanup textures that don't fit in the cache.
Change-Id: I4f29ed96ea11118b391fb957e1e4d1b8fcef1537
/frameworks/base/libs/hwui/Texture.h
|
| 7d139ba2c331f11e9b485753cc727a0ff202f2a4 |
|
02-Jul-2010 |
Romain Guy <romainguy@android.com> |
Remove extra leftover logs and use uint32_t instead of unsigned int.
Change-Id: I944f82fe3255de38dc04048cc8bd861f578f01a7
/frameworks/base/libs/hwui/Texture.h
|
| fe8809471a40cac8acc984adfa51c39e13e83947 |
|
01-Jul-2010 |
Romain Guy <romainguy@google.com> |
Remove unnecessary return and add bitmap generation ID tracking.
Change-Id: Icf5e0635e789f5ea53268c22fad51cf733b5b1a6
/frameworks/base/libs/hwui/Texture.h
|
| ce0537b80087a6225273040a987414b1dd081aa0 |
|
30-Jun-2010 |
Romain Guy <romainguy@google.com> |
Add hooks for drawBitmap().
Change-Id: I58e962c3a8b2bc75c2605fe369ad3002579d86e0
Add texture cache.
Change-Id: I1c0e5581d228869e114438258a1014e33e024ad7
/frameworks/base/libs/hwui/Texture.h
|