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d33a2222
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2021-04-26T16:56:15
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Upstream Apple's direct-to-Metal backend: compile libANGLE.
This change is meant to merge the metal backend changes from Apple's
direct-to-Metal backend. Taken from Kyle Piddington's CL:
https://chromium-review.googlesource.com/c/angle/angle/+/2857366/
The goal of this CL is to merge the metal backend code in a state
that compiles, but not to switch the Metal backend over to using
the direct-to-metal backend yet.
Bug: angleproject:5505
Bug: angleproject:6127
Change-Id: If6783e06e0086b3a1dd25c6f53caca5cfc96cb86
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2950067
Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>
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776c6015
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2021-02-26T00:00:57
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Vulkan: Call glslang at compile time
With this change, the ANGLE translator immediately compiles the
generated GLSL into SPIR-V with glslang and discards the source. This
is in preparation for generating SPIR-V directly, by making the frontend
and backend already able to digest it.
This change also allows the expensive glslang calls to be parallelized,
improving the following perf test by about 20%:
LinkProgramBenchmark.Run/vulkan_compile_and_link_multi_thread
Previously, the test was run as such in the Vulkan backend:
Main Thread 1 Thread 2
Compile1 --->
Compile2 --------------------->
Translator Translator
<---
<---------------------
Link
glslang
for
shader1
glslang
for
shader2
Done
With this change, it is run as such:
Main Thread 1 Thread 2
Compile1 --->
Compile2 --------------------->
Translator Translator
glslang glslang
<---
<---------------------
Link
Done
glslang_wrapper_utils no longer interacts with glslang! A rename will
follow.
Bug: angleproject:4889
Change-Id: If4303e8ba0ba43b1a2f47f8c0a9133d0bee1a19a
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2721195
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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c7c38731
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2021-03-04T15:04:07
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Vulkan: Move SpirvBlob definition to common/
For use by the translator.
Bug: angleproject:4889
Change-Id: Ie95cafd3cfcdde50acc5d26d3c00e6574186a805
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2737276
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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77637f2d
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2021-02-19T15:18:52
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Vulkan: Generate xfb support code in SPIR-V for emulation path
This change moves the code generation at link time from source code to
SPIR-V. As a result, transform feedback extension and emulation paths
are more similarly handled before SPIR-V transformation (they both store
information identically in the ShaderInterfaceVariableInfoMap).
This change gets rid of the @@ XFB-OUT @@ marker. With no source code
generation at link time, shader compilation can be moved to
glCompileShader time.
Bug: angleproject:4888
Change-Id: I8cdb89c22b57ce48cf5d226b8e41622d9d550d46
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2713269
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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093250e0
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2020-12-23T12:07:46
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Vulkan: Make shader variable info maps a class.
Instead of using a map type directly we abstract the info maps into an
encapsulated class. We can enforce a specific API set instead of using
the same API as the map class. This also cleans up a few of the APIs
related to these maps.
This change will allow future changes to the way the variables are
stored in the class without drastically changing the interface.
Bug: angleproject:3572
Bug: angleproject:4524
Change-Id: Ic1a63e1776c39f49b895a1274bae8282d7a6b9b5
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2600080
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>
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6136cbcb
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2020-09-23T21:31:05
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Metal: Implement transform feedback
- XFB is currently emulated by writing to storage buffers.
- Metal doesn't allow vertex shader to both write to storage buffers and
to stage output (i.e clip position). So if GL_RASTERIZER_DISCARD is
NOT enabled, the draw with XFB enabled will have 2 passes:
+ First pass: vertex shader writes to XFB buffers + not write to stage
output + disable rasterizer.
+ Second pass: vertex shader writes to stage output (i.e.
[[position]]) + enable rasterizer. If GL_RASTERIZER_DISCARD is
enabled, the second pass is omitted.
+ This effectively executes the same vertex shader twice. TODO:
possible improvement is writing vertex outputs to buffer in first
pass then re-use that buffer as input for second pass which has a
passthrough vertex shader.
- If GL_RASTERIZER_DISCARD is enabled, and XFB is enabled:
+ Only first pass above will be executed, and the render pass will use
an empty 1x1 texture attachment since rasterization is not needed.
- If GL_RASTERIZER_DISCARD is enabled, but XFB is NOT enabled:
+ we still enable Metal rasterizer.
+ but vertex shader must emulate the discard by writing gl_Position =
(-3, -3, -3, 1). This effectively moves the vertex out of clip
space's visible area.
+ This is because GLSL still allows vertex shader to write to stage
output when rasterizer is disabled. However, Metal doesn't allow
that. In Metal, if rasterizer is disabled, then vertex shader must
not write to stage output.
- See src/libANGLE/renderer/metal/doc/TransformFeedback.md for more
details.
Bug: angleproject:2634
Change-Id: I6c700e031052560326b7f660ee7597202d38e6aa
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2408594
Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>
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1677cf14
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2020-09-13T20:14:59
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Metal: Implement Uniform buffers
Uniform buffer is implemented in two forms:
- If number of ubo used in shader program is low, each buffer will use
one discrete Metal buffer slot.
- If number of ubo used is large, they will be embedded into one Metal
argument buffer. Argument buffer is similar to Vulkan descriptor set.
This is due to limit of number of Metal's discrete buffer slots which
is only 31 and over half of them are already used by vertex
attributes, default uniforms, driver uniforms, etc. The downside is
that whenever a buffer binding is changed, the argument buffer must be
updated also.
Added empty TransformFeedbackMtl implementation to enable ES3 context
creation on Metal.
Bug: angleproject:2634
Change-Id: I69325696fac735cb45ab88ab55468c0991abc317
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2408593
Commit-Queue: Le Hoang Quyen <le.hoang.q@gmail.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
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50704dc3
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2020-08-04T12:08:00
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Metal: Implement EXT_occlusion_query_boolean.
- Metal's occlusion(called visibility) query operates per render pass.
Implementation details are in
src/libANGLE/renderer/metal/doc/OcclusionQueries.md.
- New tests:
- OcclusionQueriesTest.ClearNotCounted.
- OcclusionQueriesTest.MultiQueries (failure on OpenGL/D3D11
back-end).
Bug: angleproject:2634
Change-Id: Idd1327b5472d0e8c2b69307a7f04a1da4a847a40
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2336121
Commit-Queue: Le Hoang Quyen <le.hoang.q@gmail.com>
Reviewed-by: back sept 10 - Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
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5e13757b
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2020-05-11T00:50:00
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Metal: Fix array of structs containing array of samplers bug.
Previously ProgramMtl could try to bind fixed slots to samplers based on
layout (set=..., binding=...). However, GLSL layout model is different
from Metal slots assignment. For example, The following is valid layout
in GLSL:
- array samplers A[2] is bound to index 0.
- array samplers B[2] is bound to index 1.
It is invalid to do so in Metal, since A occupies 2 slots, thus samplers
B[2] must be bound to slots starting from 2.
New binding method: let spirv-cross auto assigns the texture slots and
retrieve them after compilation.
Incomplete textures moved to ContextMtl using IncompleteTextureSet.
New test added: GLSLTest.ArrayOfStructContainingArrayOfSamplers.
Bug: angleproject:2634
Change-Id: Ib0edaaf8b20512e1272c37c1d4b16a88a5b35e75
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2193193
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
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913f4f42
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2020-04-15T00:54:37
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Vulkan: Support VS, FS, and CS in the same PPO
This CL adds support for a Program Pipeline Object to have a VS, FS,
and CS attached to the same PPO and then using that PPO for both draw
and dispatch calls.
Bug: angleproject:3570
Test: KHR-GLES31.core.compute_shader.sso*
Change-Id: I262cdbdfd442f6db5ba2b45d1308003102b237cb
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2150078
Reviewed-by: Tim Van Patten <timvp@google.com>
Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>
Commit-Queue: Tim Van Patten <timvp@google.com>
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85c076ee
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2020-02-20T17:54:35
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Vulkan: Make mVariableInfoMap a gl::ShaderMap<>
The ShaderInterfaceVariableInfoMap information is specific to each
shader stage, since the locations are determined for each shader stage.
This change makes mVariableInfoMap a gl::ShaderMap<> to handle this,
which will make it easier to compile separable programs, determine the
variable locations, and transform the SPIR-V.
Bug: angleproject:3570
Change-Id: I28b71a37efe54bbcfe1dcd445fa03ee71e74f0a6
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2062741
Commit-Queue: Tim Van Patten <timvp@google.com>
Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>
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71e6afb1
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2020-01-14T14:12:31
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Vulkan: Set set/binding in SPIR-V
This change introduces a SPIR-V transformer that modifies shader
interface variable decorations directly in SPIR-V instead of
manipulating the input GLSL. Currently, descriptor set and binding
indices are set by the transformer.
The shader translator outputs arbitrary set and binding indices. Once
compiled by glslang, the SPIR-V transformer modifies these decorations.
The ultimate goal is to be able to modify the SPIR-V again when program
pipeline objects decide a different set/binding is necessary.
Bug: angleproject:3394
Change-Id: If358265a72bf1fe9f5676562b39a632cb2e05dc4
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2001477
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
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b36e46ab
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2020-01-08T15:49:18
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Vulkan: Line raster emulation through specialization constant
In preparation for compiling shaders early at link time, this change
reworks line raster emulation such that it uses specialization constants
instead of a preprocessor condition. This means drawing both triangles
and lines with this program will still result in a one-time shader
compilation.
The compilation is still done at draw time in this change.
Bug: angleproject:3394
Change-Id: I0bf91398868d7f7147456533b728906b505192b2
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1992365
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>
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a5a04ac0
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2019-10-29T22:57:55
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Metal backend pt3: shader translator
Implementation of GLSL to MSL translator
Bug: angleproject:2634
Change-Id: I66e2374b461548fac46163ea79790a488515e6b0
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1887251
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
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fe26bae4
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2019-10-29T18:38:53
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Metal backend implementation pt 2
This is without Metal specific shader translator implemented yet.
Bug: angleproject:2634
Change-Id: I95d589442251c9ba111bd05a2dc379a36739046c
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1855069
Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>
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