| 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/GlLayer.h
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| 09df887c9078a34f2bda32c83734b7f75c0a60ff |
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14-Feb-2017 |
Chris Craik <ccraik@google.com> |
Always flush renderstate in DeferredLayerUpdater::apply
Bug: 34206215
Test: hwui unit tests passing, manual test of TextureView video playback
Always flush renderstate to the GlLayer's texture, regardless of
whether updateTexImage has ever been called.
Change-Id: I3974dce9d90633a0299e6bc4259b76c622717c90
/frameworks/base/libs/hwui/GlLayer.h
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| 00eb43dbc04083eab85fbb1a9589e2548f2004ed |
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13-Feb-2017 |
sergeyv <sergeyv@google.com> |
DeferredLayerUpdater: clean up Layer lifecycle
Test: refactoring CL, all existent tests should pass
bug:34919311
Change-Id: Ib2889667a5ab8a2aaba443458782bc163467f0ea
/frameworks/base/libs/hwui/GlLayer.h
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| 3e9999bd866fac71c72e6b484a9836c87c328a08 |
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20-Jan-2017 |
sergeyv <sergeyv@google.com> |
Explicitly destroy Layer in DeferredLayerUpdater on destroyHardwareResources()
Change-Id: I0987104eabda9a2a302b9e765213aad48f93aea4
Test: refactoring CL. Existing tests still pass
bug:33753499
/frameworks/base/libs/hwui/GlLayer.h
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| 8cd3edfa15cc9cdbffa935d19ab894426b08d174 |
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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/GlLayer.h
|