| commit | 764d14268b9067fec1589fc7182d328410a94d52 | [log] [tgz] |
|---|---|---|
| author | Alexis Hetu <sugoi@google.com> | Wed Sep 28 08:44:22 2016 -0400 |
| committer | Alexis Hétu <sugoi@google.com> | Wed Sep 28 14:14:03 2016 +0000 |
| tree | 620f6ff14dbca5111e12f2e9994ad46af5649fbc | |
| parent | 8e7675dd6f40b49f81f336a22e33e1516a990263 [diff] |
Fixed Float4 -> UInt4 conversion It appears the Nucleus::createFPToUI function is broken and does not yield the correct values for one pixel out of 4 when the f2u operation is used. By manually rewriting the conversion using signed int conversion and some arithmetic, the issue is solved. This fixes at least 130 failures and also fixes many other tests which were passing only due to the threshold being too lenient, but which were showing obvious visual artefacts. This affects, to the very least: dEQP.functional.fbo.blit.conversion dEQP.functional.shaders.functions.datatypes dEQP.functional.shaders.operator.binary_operator ... and any other test using the f2u operation. Change-Id: If38dad6b6ae8198f40e863d0847fa5080a2997e3 Reviewed-on: https://swiftshader-review.googlesource.com/7354 Tested-by: Alexis Hétu <sugoi@google.com> Reviewed-by: Nicolas Capens <capn@google.com>
SwiftShader is a high-performance CPU-based implementation of the OpenGL ES and Direct3D 9 graphics APIs12. Its goal is to provide hardware independence for advanced 3D graphics.
The SwiftShader libraries act as drop-in replacements for graphics drivers.
On Windows, most applications can be made to use SwiftShader's DLLs by placing them in the same folder as the executable. On Linux, the LD_LIBRARY_PATH environment variable or -rpath linker option can be used to direct applications to search for shared libraries in the indicated directory first.
Prebuilt binaries can be found at: https://goo.gl/5MOcdb
See CONTRIBUTING.txt for important contributing requirements.
The canonical repository for SwiftShader is hosted at: https://swiftshader.googlesource.com/SwiftShader
All changes must be reviewed and approved in the Gerrit review tool at: https://swiftshader-review.googlesource.com
Authenticate your account here: https://swiftshader-review.googlesource.com/new-password
All changes require a Change-ID tag in the commit message. A commit hook may be used to add this tag automatically, and can be found at: https://gerrit-review.googlesource.com/tools/hooks/commit-msg. To clone the repository and install the commit hook in one go:
git clone https://swiftshader.googlesource.com/SwiftShader && (cd SwiftShader && curl -Lo `git rev-parse --git-dir`/hooks/commit-msg https://gerrit-review.googlesource.com/tools/hooks/commit-msg ; chmod +x `git rev-parse --git-dir`/hooks/commit-msg)
Changes are uploaded to Gerrit by performing:
git push origin HEAD:refs/for/master
See docs/Index.md.
Public mailing list: swiftshader@googlegroups.com
Bug tracker: https://bugs.chromium.org/p/swiftshader
The SwiftShader project is licensed under the Apache License Version 2.0. You can find a copy of it in LICENSE.txt.
Files in the third_party folder are subject to their respective license.
The legal authors for copyright purposes are listed in AUTHORS.txt.
CONTRIBUTORS.txt contains a list of names of individuals who have contributed to SwiftShader. If you‘re not on the list, but you’ve signed the Google CLA and have contributed more than a formatting change, feel free to request to be added.