|
b1a0d60f
|
2025-01-08T15:10:41
|
|
WGSL: Fix accidentally overloaded functions
Small-stride arrays in uniforms with the same element type, but
different array sizes, would cause the WGSL generator to produce
conversion functions with the same name but different array sizes.
This CL puts the array size in the name of the function to
avoid overloading, which is unsupported in WGSL.
Bug: angleproject:376553328
Change-Id: I446e91ccb9da2872c88f1a4e05283aacc9d6f8b1
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6160334
Commit-Queue: Matt Denton <mpdenton@google.com>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Auto-Submit: Matthew Denton <mpdenton@chromium.org>
Reviewed-by: Matt Denton <mpdenton@google.com>
Reviewed-by: Liza Burakova <liza@chromium.org>
|
|
|
53ec86ab
|
2024-12-17T14:40:31
|
|
WGSL: support small stride arrays in uniforms
WGSL requires arrays in the uniform address space to have a stride
a multiple of 16.
This CL makes WGSL translator emit wrapper structs for array element
types used in the uniform address space, when the array stride is
not a multiple of 16. The exception is for structs that aren't
an aligned size of 16n, and for any types matCx2, since they are
(or will be) handled in different ways that ensure alignment to 16.
This should leave only f32, i32, u32, and vec2.
See https://www.w3.org/TR/WGSL/#example-67da5de6 for an example
of using a wrapper struct.
This requires converting arrays with a wrapper struct element type
to arrays with an unwrapped element type when they are first used;
this can be "optimized" later for the common case of accessing a
single array element, which can then be unwrapped immediately. This
CL generates WGSL conversion functions when necessary.
After this, the only types that can't yet be used in a uniform
are matCx2 and bools.
This is #2 in
https://docs.google.com/document/d/17Qku1QEbLDhvJS-JJ9lPQAbnuZtLxWhG-ha5eCUhtEY/edit?tab=t.0#bookmark=id.rt3slgehd4te
Bug: angleproject:376553328
Change-Id: I1edfa7f481a6cbf5b595643aae8728e67bc4b770
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6092038
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Liza Burakova <liza@chromium.org>
Reviewed-by: Matt Denton <mpdenton@google.com>
Commit-Queue: Matt Denton <mpdenton@google.com>
|
|
|
473798bf
|
2024-11-28T00:38:36
|
|
WGSL: @align appropriate struct members in uniforms.
Structs used in the uniform address space need to have certain
members aligned according to the uniform address space layout
constraints (substantially similar to std140).
This CL adds @align annotations where necessary, in structs used
in the uniform address space. Strictly speaking, it's okay to apply
@align annotations to all structs used in the WGSL program, but this
CL uses a pre-pass AST traverser to records all the structs used
in the uniform address space. This is to avoid more unreadable
generated code, and when more transformations are applied to
these structs in future CLs, less generated code overall.
After this, the only types that can't yet be used in a uniform
are matCx2, arrays with stride not divisble by 16 (except when the
array element type is a struct), and bools.
This is #1 in struct translation in
https://docs.google.com/document/d/17Qku1QEbLDhvJS-JJ9lPQAbnuZtLxWhG-ha5eCUhtEY/edit?tab=t.0#bookmark=id.rudfrn2o6jv1
Bug: angleproject:376553328
Change-Id: Ibff3414043a6ecb4a01ef8e3e71dad9c1066ddfd
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6056951
Commit-Queue: Matthew Denton <mpdenton@chromium.org>
Reviewed-by: Liza Burakova <liza@chromium.org>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
|
|
|
4a835cf2
|
2024-11-01T13:31:00
|
|
WebGPU: send uniforms to GPU for use in shader
Basic uniforms should now be accessible in the shader during a draw
call, rather than just via glGetUniform*().
This is unoptimized and creates a new GPU-side copy of all the uniforms,
every time any uniform changes.
This sets up the bind group layout for a pipeline and sets the bind
groups in the renderer pass. Right now these bind groups only contain
the default uniform blocks, but in the future will need to contain
textures, samplers, and non-default uniform blocks (UBOs).
Bug: angleproject:376553328
Change-Id: I50891b81ab2ee374d674213257f76319c0222120
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5980972
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Liza Burakova <liza@chromium.org>
Commit-Queue: Matthew Denton <mpdenton@chromium.org>
|
|
|
a6ee4641
|
2024-09-25T11:41:47
|
|
WGSL: Output default uniform block and accesses to it
Default uniforms are put into a WGSL struct, and all accesses
of those uniforms now output struct accesses.
Similarly to I/O vars and builtins, these are outputted in a
pre-pass, but in the future it might make sense to do what
Vulkan does and do an AST transformation to put the default
uniforms into a UBO which should be outputted similarly.
This does not handle bool, matCx2, or array of element size < 16.
Bug: angleproject:42267100
Change-Id: If29e2895a8aba3212b581813316af87273c1515c
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5878759
Reviewed-by: Liza Burakova <liza@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Matthew Denton <mpdenton@chromium.org>
|