Hash :
fe76d70b
Author :
Date :
2025-01-10T14:41:06
Vulkan: Enable 16-bit norm support for tex buffers
According to the spec for EXT_texture_norm16, it enables texture
buffers to support the following additional formats:
* GL_R16_EXT
* GL_RG16_EXT
* GL_RGBA16_EXT
All of the above are unsigned short normalized values.
* Updated validation to support the aforementioned formats in texture
buffers in case of support for the norm16 extension.
* Updated AdjustViewFormatForSampler() to also support norm16 values.
* Added the condition for advertising textureNorm16EXT that the 16-bit
UNORM formats above should have the buffer feature bit for texture
buffer support: VK_FORMAT_FEATURE_UNIFORM_TEXEL_BUFFER_BIT
* Added support check for renderSnormEXT after textureNorm16EXT,
since the check for former currently uses the support for latter
as a parameter.
* Added unit tests to draw using a texture buffer with norm16 formats.
* Added TextureBufferTestBase in order to test the API calls in the
extensions and the core ES 3.2 version, which the following suites
are derived from:
* TextureBufferTestES31 (existing)
* TextureBufferTestES32 (new)
* Extended the tests to similar 8-bit formats.
Bug: angleproject:381313704
Change-Id: I49157e8c2c9b5438eaf8d56c1932d12e56489318
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6169006
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Charlie Lao <cclao@google.com>
Commit-Queue: Amirali Abdolrashidi <abdolrashidi@google.com>
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.