| commit | ce8eb945ca823a50eca9bb0d7b32c31e4c20a477 | [log] [tgz] |
|---|---|---|
| author | Nicolas Capens <capn@google.com> | Thu Apr 26 16:38:05 2018 -0400 |
| committer | Nicolas Capens <nicolascapens@google.com> | Thu Apr 26 21:29:24 2018 +0000 |
| tree | a6d2810971c9f44551146e5b51f0a33b7dc07cbb | |
| parent | 840f47ea853b48c0c3f35c279489862c2ff0c979 [diff] |
Accept GL_HALF_FLOAT and GL_HALF_FLOAT_OES interchangeably. These enums don't have the same value, but this is only because of desktop OpenGL and OpenGL ES having evolved separately. OpenGL ES 3.0 reconverged to use the enum name and value of desktop OpenGL. Apps choosing between OpenGL ES 2.0 and 3.0 strictly speaking have to use different enums, but many drivers already accept either enum so the apps don't bother to differentiate them. Running them on a driver which adheres more strictly to the (extension) specs would cause parameter validation errors. Additionally, native platform pixel formats such as HAL_PIXEL_FORMAT_RGBA_FP16 on Android couldn't be mapped to GL_RGBA16F with GL_HALF_FLOAT component types on an OpenGL ES 2.0 context if the latter are considered OpenGL ES 3.0 only. Change-Id: Ib66cba7444fe438c0e4a8a6454460773cf02236d Reviewed-on: https://swiftshader-review.googlesource.com/18728 Tested-by: Nicolas Capens <nicolascapens@google.com> Reviewed-by: Alexis Hétu <sugoi@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
The third_party directory contains projects which originated outside of SwiftShader:
LLVM contains an outdated and diverged copy of the LLVM compiler framework. Until further notice, maintenance fixes can be made directly in the SwiftShader repository.
subzero contains a fork of the Subzero project. It is part of Google Chrome‘s (Portable) Native Client project. Its authoritative source is at https://chromium.googlesource.com/native_client/pnacl-subzero/. The fork was made using git-subtree to include all of Subzero’s history, and until further notice it should not diverge from the upstream project. Contributions must be tested using the README instructions, reviewed at https://chromium-review.googlesource.com, and then pulled into the SwiftShader repository.
llvm-subzero contains a minimized set of LLVM dependencies of the Subzero project.
PowerVR_SDK contains a subset of the PowerVR Graphics Native SDK for running several sample applications.
googletest contains the Google Test project, as a Git submodule. It is used for running unit tests for Chromium, and Reactor unit tests. Run git submodule update --init to obtain/update the code. Any contributions should be made upstream.
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.