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68bfa1ed
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2023-08-22T22:02:15
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Support for link to be entirely parallelized
The link job is split as such:
- Front-end link
- Back-end link
- Independent back-end link subtasks (typically native driver compile
jobs)
- Post-link finalization
Each step depends on the previous. These steps are executed as such:
1. Program::link calls into ProgramImpl::link
- ProgramImpl::link runs whatever needs the Context, such as releasing
resources
- ProgramImpl::link returns a LinkTask
2. Program::link implements a closure that calls the front-end link and
passes the results to the backend's LinkTask.
3. The LinkTask potentially returns a set of LinkSubTasks to be
scheduled by the worker pool
4. Once the link is resolved, the post-link finalization is run
In the above, steps 1 and 4 are done under the share group lock. Steps
2 and 3 can be done in threads or without holding the share group lock
if the backend supports it. Step 2 is not yet made independent of the
Context on some backends, and a frontend feature is used to make that
step either run on the main thread or as a worker thread.
Bug: angleproject:8297
Change-Id: I12f1e6bbaf365543dfcac969e166e0b5aa622104
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4808191
Reviewed-by: Charlie Lao <cclao@google.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Shahbaz Youssefi <syoussefi@google.com>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
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962fdf7b
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2023-08-31T17:44:51
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Add templated BinaryOutputStream::writeVector and writeStruct
To avoid repeated code pattern, this CL adds templated
BinaryInputStream::readVector and readStruct and
BinaryOutputStream::writeVector and writeStruct, that does the static
assertion to ensure they are trivially copyable.
readIntVector/writeIntVector is removed.
This CL also padding warning for ProgramExecutable::PODStruct to avoid
potential Msan complain.
Bug: b/296433003
Change-Id: I8e718b41cde898960b9e86a2d7d1bc5a837fe561
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4834700
Reviewed-by: Roman Lavrov <romanl@google.com>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Commit-Queue: Charlie Lao <cclao@google.com>
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f3c1de36
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2023-08-17T15:29:24
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Make shader recompile while parallel linking safe
Prior to this change, Program* objects held references to Shader*
objects. This poses a problem where a shader recompile can race with a
program link, if the program link is done in parallel.
As a result, a good chunk of the link job is done serially and under the
share group lock. After this change, that is no longer a problem, and
most of the link can be made lockless/parallelized.
This change separates out the "compiled state" from the rest of the
shader state. This was already done for the front-end state (for the
sake of caching), but is also now done for the backends that need it.
The compiled state in turn is placed in a shared_ptr, and is shared with
the program. When a shader is compiled, its own shared_ptr is replaced
with a new object, leaving all programs currently compiling unaffected
and using the previous compilation results.
Once a program is linked, its references to compiled shader states is
updated.
Bug: angleproject:8297
Change-Id: Iff7094a37088fbad99c6241f1c48b0bd4c820eb2
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4791065
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Charlie Lao <cclao@google.com>
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10380f4b
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2023-06-06T11:52:08
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Vulkan: Output SPIR-V ids from compiler
In this change, the shader interface variables are given SPIR-V ids by
the compiler before SPIR-V generation. Those ids are made available
through the ShaderVariable interface.
The transformer does not yet rely on this information. A follow up
change will rework the backend's name->info map and the transformer to
directly use ids instead of names.
Bug: angleproject:7220
Change-Id: Ic0a62681d4bcf3ed171c39c3ecd83e438ea068c8
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4600609
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Roman Lavrov <romanl@google.com>
Reviewed-by: Yuxin Hu <yuxinhu@google.com>
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cc34aa73
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2022-12-19T14:03:27
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Move BinaryStream to common and expose ShaderState to compiler
This is a refactor change in preparation for adding support for
glShaderBinary.
Move BinaryStream to common so that it is accessible by both libANGLE
and the Compiler.
Extract members that hold the result of compilation from ShaderState
and move into new CompiledShaderState struct.
Move helper functions & classes relevant to ShaderVar serialization to
the CompiledShaderState header.
Tests: EGLBlobCacheTest*
Bug: angleproject:7833
Change-Id: I7ec575247eccb3afbc6ab6bfa24d36e69d4576f5
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4080998
Reviewed-by: Charlie Lao <cclao@google.com>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Commit-Queue: mohan maiya <m.maiya@samsung.com>
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