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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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76b0e7f3
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2023-06-01T11:25:54
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Vulkan: Use reserved SPIR-V ids for internal variables
With this change, the SPIR-V transformer does not need to discover these
ids through name matching. Ultimately, user variables would also be
identified by their SPIR-V ids (instead of name), removing the Vulkan
backend's reliance on strings.
Bug: angleproject:7220
Change-Id: I241c3247b89a28f9eed28f23c06b7c8b7fbbeaa0
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4583133
Reviewed-by: Yuxin Hu <yuxinhu@google.com>
Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
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4ff41604
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2023-05-31T11:12:33
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Vulkan: Declare common SPIR-V ids in the compiler
The SPIR-V transformer no longer needs to discover these ids.
Bug: angleproject:7220
Change-Id: I7082e831308eaac97ace3c128f398ff5f5497739
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4573825
Reviewed-by: Yuxin Hu <yuxinhu@google.com>
Reviewed-by: Charlie Lao <cclao@google.com>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
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6f80f0f0
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2022-08-06T02:29:19
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Translator: Clean up the compile flag passing interface
Historically, compile flags were sent to the translator as a bitmask.
Recently, we were getting close to running out of bits. Additionally,
direct-to-metal work had started to introduce constants to be passed to
the translator, which were misplaced in ShBuiltInResources and Caps.
Recent work on Pixel Local Storage adds even more constants, aggravating
the situation.
In this change, the interface to passing compile flags is reworked. A
struct is passed (instead of a bitmask) that has one bit for each flag.
This can be indefinitely extended. Additionally, the constants needed
by metal and PLS are also placed in this struct. In turn, the backends
can set these options directly, and don't have to hack them into Caps to
further get hacked into ShBuiltInResources.
Bug: angleproject:7559
Change-Id: If93f1e1b8818ad3a0ac708ab04ab93b4b397d114
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3812562
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com>
Commit-Queue: Amirali Abdolrashidi <abdolrashidi@google.com>
Auto-Submit: Shahbaz Youssefi <syoussefi@chromium.org>
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1ce78397
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2021-07-30T16:51:45
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Remove support for WEBGL_debug_shader_precision
This extension was rejected, and the implementation was hacky. This
clean up is part of an ongoing work to improve precision handling.
Bug: angleproject:6059
Change-Id: If08581ec6f19cf1698ffa3dd6d248dc5e68a1d31
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3064303
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
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18ddd131
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2021-06-07T14:59:43
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Vulkan: SPIR-V Gen: Support mediump/lowp
The mediump and lowp precisions translate to a RelaxedPrecision
decoration in SPIR-V. This change implements this decoration and
enables SPIR-V generation when emulating Bresenham lines. Prior to this
change, Bresenham line emulation resulted in a validation error due to
the vertex shader output being without RelaxedPrecision but the fragment
shader input (translated by glslang) with it.
The function that produces a new id is given a list of decorations to
apply, which itself is automatically deriven from the TType where
applicable, to minimize the risk of any id missing this decoration.
Bug: angleproject:4889
Change-Id: I30cc5a278634c5d83d63cd65b057336f9f573baa
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2946113
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>
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9bc837f6
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2021-04-07T15:24:12
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Vulkan: Generate SPIR-V directly from the translator; Part 1
This is the first change in a series to generate SPIR-V directly from
the translator's AST, instead of the generating text GLSL and feeding it
to glslang.
This change implements the majority of the work needed to map AST types
to SPIR-V types, and declare types and interface variables in SPIR-V.
Additionally, it lays the infrastructure to conditionally enabling this
path in end2end tests.
No tests are currently enabled as the change doesn't actually generate
code for function bodies yet.
Bug: angleproject:4889
Change-Id: Iacb28b6907fd48c50e4cc5a0e7ad72f6eed241d4
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2889603
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
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