Hash :
9d668d6c
Author :
Date :
2022-01-07T18:18:23
Revert "Frontend: separate lock in swap prep" This reverts commit 40c5cb255c0a07bdab574aa076ee603e7d791ab3. Reason for revert: Regression in TSAN caused by this CL: https://ci.chromium.org/ui/p/angle/builders/ci/linux-tsan-test/352/overview Original change's description: > Frontend: separate lock in swap prep > > Swapchain-based backends like Vulkan might block a lot in > vkAcquireNextImageKHR, which is bad for overall fast progress if we also > hold the global EGL lock there. > > This CL starts to split the global EGL lock. We release the EGL lock > when performing vkAcquireNextImageKHR, and only maintain a lock for > surfaces. > > Bug: angleproject:6851 > Change-Id: I329d5c4c579718a4980c4261590f77099ce1400e > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3361249 > Reviewed-by: Charlie Lao <cclao@google.com> > Reviewed-by: Geoff Lang <geofflang@chromium.org> > Commit-Queue: Lingfeng Yang <lfy@google.com> Bug: angleproject:6851 Change-Id: Ie03b784021f7b8b5c1ef95a911ef7da4029abd46 No-Presubmit: true No-Tree-Checks: true No-Try: true Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3373165 Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com> Commit-Queue: Jamie Madill <jmadill@chromium.org>
This folder contains shared back-end-specific implementation files. The classes
and types in renderer are not specified by GLES. They instead are common to
all the various ANGLE implementations.
See renderer_utils.h for various cross back-end utilties.
The ANGLE format class, angle::Format, works as a union
between GLES and all the various back-end formats. It can represent any type
of format in ANGLE. e.g. Formats in Vulkan that don’t exist in GLES, or DXGI
formats that don’t exist in GLES, or Windows/Android surface configs that
don’t exist anywhere else.
The glInternalFormat member of angle::Format represents the “closest” GL
format for an ANGLE format. For formats that don’t exist in GLES this will
not be exactly what the format represents.
The back-ends also define their own format tables. See the Vulkan Format table docs and the [D3D11 format table docs][D23D11FormatDocs].
DXGI formats are used in both the GL and D3D11 back-end. Therefore the generated info table lives in this common shared location.
The DXGI info table is generated by gen_dxgi_format_table.py
and sources data from dxgi_format_data.json. The
main purpose of the table is to convert from a DXGI format to an ANGLE
format, where the ANGLE format should have all the necessary information.