commit | 667ab103e907e5d99cc5d79fe80b12c93e26cc09 | [log] [tgz] |
---|---|---|
author | Nicolas Capens <capn@google.com> | Thu Mar 22 13:22:20 2018 -0400 |
committer | Nicolas Capens <nicolascapens@google.com> | Mon Mar 26 20:26:14 2018 +0000 |
tree | 921336ccc47c5f5dfef32b8bc424b2e96b8c023d | |
parent | 894858a5bac9bfc8afde903e9c40a26631edde72 [diff] |
Support more glCopyTexImage unsized formats. Convert packed types to the next greater non-packed component type. Specifically, when the red component has fewer than 8 bits, use the corresponding sized internal format with 8-bit components. Note that this is still not fully compliant. The OpenGL ES 3.0 spec section 3.8.5 states that: If internalformat is unsized, the internal format of the new texel array is determined by the following rules, applied in order. If an effective internal format exists that has 1. the same component sizes as, 2. component sizes greater than or equal to, or 3. component sizes smaller than or equal to those of the source buffer’s effective internal format (for all matching components in internalformat), that format is chosen for the new image array, and this is also the new texel array’s effective internal format. This means that in theory when copying an RGBA4 framebuffer into an RGB texture, the effective internal format should be RGB565, not RGB8. However, dEQP does not enforce this, and ANGLE always assumes UNSIGNED_BYTE components. Change-Id: Id243b963779108e205c275499ddfb6e041a873d6 Reviewed-on: https://swiftshader-review.googlesource.com/17969 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.