kc3-lang/angle/src/common/spirv/BUILD.gn

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• Hash : f3d5dac3
  Author :
  Date : 2021-08-23T17:25:15
  

  Vulkan: SPIR-V Gen: Drop dependency to glslang
  
  The SPIR-V gen path is now made default.  Compilation through glslang is
  still supported for debugging, and is enabled on the GLSL* end2end tests
  for smoke testing.  On release builds, glslang is not supported.
  
  To test with glslang, add the following gn arg (only necessary if dcheck
  is disabled):
  
      angle_enable_spirv_gen_through_glslang = true
  
  Then enable the generateSPIRVThroughGlslang feature.  This can be done
  by setting an environment variable:
  
      ANGLE_FEATURE_OVERRIDES_ENABLED=generateSPIRVThroughGlslang ./angle_deqp_gles2_tests
  
  Binary size saving:
  
  - 1.3MB on Linux (SPIR-V gen itself: 240KB)
  - 730KB on Android (SPIR-V gen itself: 140KB)
  
  Perf tests:
  
  - LinkProgramBenchmark.Run/vulkan_compile_single_thread
    * Through glslang:
        truncated mean: 1287033.36
    * Direct SPIR-V Gen:
        truncated mean: 244495.91  (~80% reduction)
  
  - LinkProgramBenchmark.Run/vulkan_compile_multi_thread
    * Through glslang:
        truncated mean: 4565894.83
    * Direct SPIR-V Gen:
        truncated mean: 1158164.10  (~75% reduction)
  
  Bug: angleproject:4889
  Bug: angleproject:6210
  Change-Id: I486342702977c8114e90073b97183aba115a8b2d
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3115140
  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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• src/common/spirv/BUILD.gn

• # Copyright 2021 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")
  
  angle_source_set("angle_spirv_headers") {
    sources = [ "spirv_types.h" ]
  
    deps = [ "$angle_root:angle_common" ]
  }
  
  angle_source_set("angle_spirv_base") {
    sources = [ "angle_spirv_utils.cpp" ]
    deps = [
      ":angle_spirv_headers",
      "$angle_root:angle_common",
      "${angle_spirv_headers_dir}:spv_headers",
      "${angle_spirv_tools_dir}:spvtools_headers",
    ]
  
    if (angle_debug_layers_enabled) {
      deps += [ "$angle_spirv_tools_dir:spvtools_val" ]
    }
  }
  
  angle_source_set("angle_spirv_builder") {
    sources = [
      "spirv_instruction_builder_autogen.cpp",
      "spirv_instruction_builder_autogen.h",
    ]
    deps = [
      ":angle_spirv_base",
      ":angle_spirv_headers",
      "$angle_root:angle_common",
      "${angle_spirv_headers_dir}:spv_headers",
    ]
  }
  
  angle_source_set("angle_spirv_parser") {
    sources = [
      "spirv_instruction_parser_autogen.cpp",
      "spirv_instruction_parser_autogen.h",
    ]
    deps = [
      ":angle_spirv_base",
      ":angle_spirv_headers",
      "$angle_root:angle_common",
      "${angle_spirv_headers_dir}:spv_headers",
    ]
  }
  

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