Hash :
f1e19872
Author :
Date :
2023-06-12T14:38:23
Vulkan: Fix read pixels with RGBX Typically, the format used for data uploads and downloads as well as the storage format are consistent. That is unfortunately not the case for GL_RGBX8_ANGLE where data uploads are through 3-byte RGB pixels while downloads are through 4-byte RGBX pixels. This change swaps out RGBX for RGBA on the read pixels path. Test credit of Jason Macnak <natsu@google.com> Bug: b/246008627 Test: atest CtsSkQPTestCases Change-Id: I531ebd8318bf4fe5ac09c623068b790a7e301428 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4608488 Reviewed-by: Jason Macnak <natsu@google.com> Auto-Submit: Shahbaz Youssefi <syoussefi@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Geoff Lang <geofflang@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.