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2df17a12
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2022-05-25T16:18:37
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Vulkan: Pack driver uniforms
Previously 5 vec4s were used for driver uniforms + 2 vec4s if
specialization constants couldn't be supported.
The driver uniforms are rearranged and packed such that only 2 vec4s are
normally used, which include fallback for specialization constants as
well. In the future, most of the specialization constants may turn into
uniforms, and this change prepares for that.
Additional uniforms are used (3 vec4s) only if common extensions are
missing; transform feedback and bresenham lines.
This change makes it more practical for driver uniforms to be turned
into push constants. Additionally, these uniforms could potentially be
loaded and cached at the beginning of the shader for more efficient
memory access.
On Pixel6, with this change, the traces show no difference in wall time.
On most traces, CPU time shows up to ~7% improvement.
Bug: angleproject:7366
Change-Id: I0f47f863955af06a19c69d1f1d7c45b97d95476e
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3668151
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Charlie Lao <cclao@google.com>
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98c2e169
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2022-05-20T16:17:49
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Vulkan: Reduce pre-rotation spec const to bool
The specialization constant now only dictates whether x and y should be
swapped. The complete 8 possible states of rotation and y-flip are
achieved by using this swap in combination with a driver uniform for x
and y flip.
Swapping is still a specialization constant to avoid degrading
performance of dFdx/dFdy which otherwise would need both to be evaluated
instead of one. On platforms which don't support pre-rotation, the
specialization constant will never change and driver uniforms entirely
govern y-flip. On platforms that do support pre-rotation, only two
variations of the pipeline are needed.
Bug: angleproject:7366
Change-Id: I73f84e89fa9349d2098fa5b21573aee57d93a30c
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3663151
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Lingfeng Yang <lfy@google.com>
Reviewed-by: Charlie Lao <cclao@google.com>
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32d6e806
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2021-09-24T23:50:54
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Vulkan: Fix rotation of interpolateAtOffset
interpolateAtOffset's offset was multiplied by flipXY*rotationMatrix,
which is a vector. This was unable to actually apply rotation to the
offset. The multiplier is changed to a matrix.
Can be tested by running interpolate_at_offset*default_framebuffer tests
in deqp gles3.1 together with pre-rotation:
./angle_deqp_gles31_tests
--deqp-case=dEQP.GLES31/functional_shaders_multisample_interpolation_interpolate_at_offset_no_qualifiers_default_framebuffer
--emulated-pre-rotation=90
Bug: angleproject:5843
Change-Id: I9727371375e999f07463b69153df3fd8b28c2a71
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3183108
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Ian Elliott <ianelliott@google.com>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
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061188a7
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2021-08-04T10:07:47
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Translator: General clean up
General clean up done as part of other changes, split to simplify
review.
Bug: angleproject:4889
Bug: angleproject:6132
Change-Id: Iade9954d187a759be9edd0e3754be007f4133c56
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3071598
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
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8b869a95
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2021-06-13T01:09:27
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Translator: Generate Ops for all built-in functions
EOpCallBuiltInFunction is removed in this change, as well as the
"op": "auto" property in builtin_function_declarations.txt. Instead,
gen_builtin_symbols.py automatically generates Ops for every built-in
function and generates the TOperator enum accordingly.
This simplifies SPIR-V code generation by allowing switches to be used
on operators instead of string comparisons.
Bug: angleproject:4589
Bug: angleproject:4889
Change-Id: Ia351524400b0e12a10a5572e27e9b88c6ec2e61c
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2958869
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
Reviewed-by: Tim Van Patten <timvp@google.com>
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f0286e63
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2021-01-19T12:38:46
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Translator: Stop allocating TIntermSequence
The functions that take a TIntermSequence always copy out / Swap the
contents away. This change makes all TIntermSequences live on the stack
instead of being newed.
Bug: angleproject:5535
Change-Id: I942f1c5e57b00199d5308183f71bd9e18b0608bd
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2636679
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
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382bf288
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2020-12-24T23:56:39
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Organize AST transforms per backend
Most of the AST transforms are written as a workaround to an issue that
affects a single backend. This change identifies such transforms and
organizes them by backend. They are then only built if the respective
backend is.
Additionally, about half of the GL transforms are due to mac
workarounds, including the large RewriteRowMajorMatrices transform.
Mac-specific workarounds are additionally only built on said platform.
This change reduces the ANGLE binary size:
- 106KB in a Vulkan-only build on Linux
- 27KB in a GL-only build on Android (60KB on Linux)
Bug: chromium:1084580
Bug: chromium:1161513
Change-Id: I64b334332c0d4f848756c6538af0d8d96864c7e9
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2601346
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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