Fix memory alignment of outline spans.

Some CPU architectures require all memory accesses to be naturally aligned.
We read polygon outline spans in pairs, so we need two underflow spans.

b/37478805

Change-Id: If74fd59654fb6fa56cbed93122b496b9e86dda06
Reviewed-on: https://swiftshader-review.googlesource.com/9528
Reviewed-by: Nicolas Capens <capn@google.com>
Tested-by: Nicolas Capens <capn@google.com>
1 file changed
tree: bbbda5c072ff04aaf30181867df742e14bc30fe1
  1. .dir-locals.el
  2. .gitignore
  3. .gitmodules
  4. .vscode/
  5. AUTHORS.txt
  6. Android.mk
  7. BUILD.gn
  8. CMakeLists.txt
  9. CONTRIBUTING.txt
  10. CONTRIBUTORS.txt
  11. DEPS
  12. LICENSE.txt
  13. OWNERS
  14. README.google
  15. README.md
  16. README.version
  17. SwiftShader.sln
  18. docs/
  19. include/
  20. src/
  21. tests/
  22. third_party/
README.md

SwiftShader

Introduction

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.

Usage

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

Contributing

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

Documentation

See docs/Index.md.

Contact

Public mailing list: swiftshader@googlegroups.com

Bug tracker: https://bugs.chromium.org/p/swiftshader

License

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.

Authors and Contributors

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.

Disclaimer

  1. Trademarks are the property of their respective owners.
  2. We do not claim official conformance with any graphics APIs at this moment.
  3. This is not an official Google product.