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a1d5d102
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2025-07-22T02:15:43
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WGSL: Allow matrices as in/out vars in shaders
WGSL only supports scalars and vectors in in/out vars in shaders,
matrices will need to be broken into column vectors and then
put back together at the beginning (or end) of the shader.
Arrays also need to be split, which will be done in another CL.
Bug: angleproject:42267100
Change-Id: If1ba28c1b687ae0a3a5a554479f0ff0b5d9df39c
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6777201
Commit-Queue: Matthew Denton <mpdenton@chromium.org>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Liza Burakova <liza@chromium.org>
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b7582680
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2025-02-24T18:04:32
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Reland: GL: Allow untranslated shaders to pass through on GLES
Add an EGL extension EGL_ANGLE_create_context_passthrough_shaders which
uses the NULL translator and passes the original shader to the driver.
The parser is still used for shader reflection.
Always enable the null compiler backend. It has almost no binary size
cost and is now potentially used when the null ANGLE backend is not
enabled.
Bug: angleproject:398857482
Change-Id: Id528189ccbbacb1c444eacb151baadfda9fcc04b
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6488609
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>
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5dd05578
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2025-04-14T07:34:57
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Revert "GL: Allow untranslated shaders to pass through on GLES"
This reverts commit 4e77552b86a89b449ada6d6c18f84285f5812b1d.
Reason for revert: breaks ChromeOS and fuzzers
Bug: angleproject:398857482
Original change's description:
> GL: Allow untranslated shaders to pass through on GLES
>
> Add an EGL extension EGL_ANGLE_create_context_passthrough_shaders which
> uses the NULL translator and passes the original shader to the driver.
> The parser is still used for shader reflection.
>
> Bug: angleproject:398857482
> Change-Id: I7c5fcc318c7e11931f78c08dcbf4764bf77d397d
> Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6297527
> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
> Commit-Queue: Geoff Lang <geofflang@chromium.org>
Bug: angleproject:398857482, angleproject:410423936
Bug: chromium:410114655, chromium:410100607, chromium:410121218
Bug: chromium:410052365, chromium:410290507, chromium:410178288
No-Presubmit: true
Change-Id: I45b01960637a1cda05d21a7df6d07465f6a8f5e9
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6448984
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Auto-Submit: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Yuly Novikov <ynovikov@chromium.org>
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4e77552b
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2025-02-24T18:04:32
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GL: Allow untranslated shaders to pass through on GLES
Add an EGL extension EGL_ANGLE_create_context_passthrough_shaders which
uses the NULL translator and passes the original shader to the driver.
The parser is still used for shader reflection.
Bug: angleproject:398857482
Change-Id: I7c5fcc318c7e11931f78c08dcbf4764bf77d397d
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6297527
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>
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0cdbc781
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2025-03-06T11:22:18
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WGSL: Output samplers, including samplers from structs
This output two WGSL variables for each GLSL sampler, including samplers
in structs. This does not output the correct types for the WGSL
variables, yet, nor does it generate texture access function calls.
It also can't deal with arrays of samplers, which are not allowed in
WGSL.
Note that WGSL does not allow structs containing samplers to be
arguments to a function, like Vulkan, nor does it allowed arrays of
samplers at all, unlike Vulkan. This deals with the former problem the
same way as Vulkan and Metal, by monomorphizing functions that take
unsupported arguments.
Bug: angleproject:389145696
Change-Id: I346688783dd2771c8fe6848b6783d948ed111783
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6253672
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Matthew Denton <mpdenton@chromium.org>
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1161ac8e
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2025-01-23T13:25:01
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WebGPU: Implement no-op gl_PointSize
Support writing to the gl_PointSize builtin but do not pass it to the
next shader stages.
Bug: angleproject:392604862
Change-Id: I845a3edeb0ce8e7ea41a5e96e5f3b443100f2cbf
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6194555
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Matthew Denton <mpdenton@chromium.org>
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53ec86ab
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2024-12-17T14:40:31
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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>
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b16d105f
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2024-10-03T10:25:32
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Remove Desktop GL front-end support
For Desktop GL applications, please use Zink!
Bug: angleproject:370937467
Change-Id: Ie734634bb62a2e98c80e1b32d8b3d34624da3c04
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5905428
Reviewed-by: Geoff Lang <geofflang@chromium.org>
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a6ee4641
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2024-09-25T11:41:47
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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>
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c2a9300c
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2024-09-10T19:33:33
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WGSL: Rewrite input/output variables
GLSL builtin variables and in/out variables correspond to WGSL's main
function params and return value, so rewrite them accordingly.
This is done by generating structs to use as main function params and
return values, generating similar global structs, and copying the
former into the latter so the rest of the program can just use the
variables stored in the global structs.
Bug: angleproject:42267100
Change-Id: Ic3e1196f6fb95b963ce03845096a59ea7599d608
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5835347
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Matthew Denton <mpdenton@chromium.org>
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