kc3-lang/angle/src/libANGLE/renderer/metal/metal_backend.gni

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• Hash : 9b00af52
  Author :
  Date : 2023-02-01T11:10:32
  

  Metal: Add an in-memory MTLLibrary cache.
  
  Add a small cache for (msl + compile parameters) -> MTLLibrary at the
  egl::Display level. In regular executions of Chrome, the same shaders
  (particularly vertex) are compiled multiple times in different programs.
  
  Tested for a regular Chrome startup + open wikipedia + motionmark 1.2:
  112/282 (40%) cache hits.
  
  Several different caching methods were profiled (LinkProgram perf test)
   - struct key with std::map                             : 303309
   - struct key with std::unordered_map                   : 308090
   - binary blob key with std::map                        : 263595
   - binary blob key with std::unordered_map              : 286051
   - struct key + is_transparent with std::unordered_map  : 304877
   - struct key + is_transparent with absl::flat_hash_map : 335686
  
  Using is_transparent allows us to search the hash map without
  copying the shader source string to construct the key structure.
  
  Bug: chromium:1385510
  Change-Id: Ieec4ba526fe286276a4af7114d89cde32a8f9e1d
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4214012
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Kenneth Russell <kbr@chromium.org>
  

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• src/libANGLE/renderer/metal/metal_backend.gni

• # Copyright 2022 The ANGLE Project Authors. All rights reserved.
  # Use of this source code is governed by a BSD-style license that can be
  # found in the LICENSE file.
  
  import("../../../../gni/angle.gni")
  
  metal_backend_sources = [
    "BufferMtl.h",
    "BufferMtl.mm",
    "CompilerMtl.h",
    "CompilerMtl.mm",
    "ContextMtl.h",
    "ContextMtl.mm",
    "DeviceMtl.h",
    "DeviceMtl.mm",
    "DisplayMtl.h",
    "DisplayMtl.mm",
    "DisplayMtl_api.h",
    "FrameBufferMtl.h",
    "FrameBufferMtl.mm",
    "IOSurfaceSurfaceMtl.h",
    "IOSurfaceSurfaceMtl.mm",
    "ImageMtl.h",
    "ImageMtl.mm",
    "ProgramMtl.h",
    "ProgramMtl.mm",
    "ProvokingVertexHelper.h",
    "ProvokingVertexHelper.mm",
    "QueryMtl.h",
    "QueryMtl.mm",
    "RenderBufferMtl.h",
    "RenderBufferMtl.mm",
    "RenderTargetMtl.h",
    "RenderTargetMtl.mm",
    "SamplerMtl.h",
    "SamplerMtl.mm",
    "ShaderMtl.h",
    "ShaderMtl.mm",
    "SurfaceMtl.h",
    "SurfaceMtl.mm",
    "SyncMtl.h",
    "SyncMtl.mm",
    "TextureMtl.h",
    "TextureMtl.mm",
    "TransformFeedbackMtl.h",
    "TransformFeedbackMtl.mm",
    "VertexArrayMtl.h",
    "VertexArrayMtl.mm",
    "blocklayoutMetal.cpp",
    "blocklayoutMetal.h",
    "mtl_buffer_manager.h",
    "mtl_buffer_manager.mm",
    "mtl_buffer_pool.h",
    "mtl_buffer_pool.mm",
    "mtl_command_buffer.h",
    "mtl_command_buffer.mm",
    "mtl_common.h",
    "mtl_common.mm",
    "mtl_context_device.h",
    "mtl_context_device.mm",
    "mtl_default_shaders_compiled.inc",
    "mtl_format_table_autogen.mm",
    "mtl_format_utils.h",
    "mtl_format_utils.mm",
    "mtl_library_cache.h",
    "mtl_library_cache.mm",
    "mtl_msl_utils.h",
    "mtl_msl_utils.mm",
    "mtl_occlusion_query_pool.h",
    "mtl_occlusion_query_pool.mm",
    "mtl_render_utils.h",
    "mtl_render_utils.mm",
    "mtl_resource_spi.h",
    "mtl_resources.h",
    "mtl_resources.mm",
    "mtl_state_cache.h",
    "mtl_state_cache.mm",
    "mtl_utils.h",
    "mtl_utils.mm",
    "renderermtl_utils.cpp",
    "renderermtl_utils.h",
    "shaders/constants.h",
    "shaders/format_autogen.h",
    "shaders/mtl_default_shaders_src_autogen.inc",
    "shaders/rewrite_indices_shared.h",
  ]
  

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