kc3-lang/angle/include/platform/FeaturesMtl.h

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• Hash : 9bc837f6
  Author :
  Date : 2021-04-07T15:24:12
  

  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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• include/platform/FeaturesMtl.h

• //
  // Copyright 2019 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.
  //
  // FeaturesMtl.h: Optional features for the Metal renderer.
  //
  
  #ifndef ANGLE_PLATFORM_FEATURESMTL_H_
  #define ANGLE_PLATFORM_FEATURESMTL_H_
  
  #include "platform/Feature.h"
  
  namespace angle
  {
  
  struct FeaturesMtl : FeatureSetBase
  {
      // BaseVertex/Instanced draw support:
      Feature hasBaseVertexInstancedDraw = {
          "has_base_vertex_instanced_draw", FeatureCategory::MetalFeatures,
          "The renderer supports base vertex instanced draw", &members};
  
      // Support depth texture filtering
      Feature hasDepthTextureFiltering = {
          "has_depth_texture_filtering", FeatureCategory::MetalFeatures,
          "The renderer supports depth texture's filtering other than nearest", &members};
  
      // Support explicit memory barrier
      Feature hasExplicitMemBarrier = {"has_explicit_mem_barrier_mtl", FeatureCategory::MetalFeatures,
                                       "The renderer supports explicit memory barrier", &members};
  
      // Some renderer can break render pass cheaply, i.e. desktop class GPUs.
      Feature hasCheapRenderPass = {"has_cheap_render_pass_mtl", FeatureCategory::MetalFeatures,
                                    "The renderer can cheaply break a render pass.", &members};
  
      // Non-uniform compute shader dispatch support, i.e. Group size is not necessarily to be fixed:
      Feature hasNonUniformDispatch = {
          "has_non_uniform_dispatch", FeatureCategory::MetalFeatures,
          "The renderer supports non uniform compute shader dispatch's group size", &members};
  
      // fragment stencil output support
      Feature hasStencilOutput = {"has_shader_stencil_output", FeatureCategory::MetalFeatures,
                                  "The renderer supports stencil output from fragment shader",
                                  &members};
  
      // Texture swizzle support:
      Feature hasTextureSwizzle = {"has_texture_swizzle", FeatureCategory::MetalFeatures,
                                   "The renderer supports texture swizzle", &members};
  
      Feature hasDepthAutoResolve = {
          "has_msaa_depth_auto_resolve", FeatureCategory::MetalFeatures,
          "The renderer supports MSAA depth auto resolve at the end of render pass", &members};
  
      Feature hasStencilAutoResolve = {
          "has_msaa_stencil_auto_resolve", FeatureCategory::MetalFeatures,
          "The renderer supports MSAA stencil auto resolve at the end of render pass", &members};
  
      Feature hasEvents = {"has_mtl_events", FeatureCategory::MetalFeatures,
                           "The renderer supports MTL(Shared)Event", &members};
  
      // On macos, separate depth & stencil buffers are not supproted. However, on iOS devices,
      // they are supproted:
      Feature allowSeparatedDepthStencilBuffers = {
          "allow_separate_depth_stencil_buffers", FeatureCategory::MetalFeatures,
          "Some Apple platforms such as iOS allows separate depth & stencil buffers, "
          "whereas others such as macOS don't",
          &members};
  
      Feature allowMultisampleStoreAndResolve = {
          "allow_msaa_store_and_resolve", FeatureCategory::MetalFeatures,
          "The renderer supports MSAA store and resolve in the same pass", &members};
  
      Feature allowGenMultipleMipsPerPass = {
          "gen_multiple_mips_per_pass", FeatureCategory::MetalFeatures,
          "The renderer supports generating multiple mipmaps per pass", &members};
  
      Feature forceBufferGPUStorage = {
          "force_buffer_gpu_storage_mtl", FeatureCategory::MetalFeatures,
          "On systems that support both buffer's memory allocation on GPU and shared memory (such as "
          "macOS), force using GPU memory allocation for buffers.",
          &members};
  
      Feature forceD24S8AsUnsupported = {"force_d24s8_as_unsupported", FeatureCategory::MetalFeatures,
                                         "Force Depth24Stencil8 format as unsupported.", &members};
  
      // Whether SPIR-V should be generated directly instead of through glslang.  Transitory feature
      // until the work is complete.
      Feature directSPIRVGeneration = {"directSPIRVGeneration", FeatureCategory::MetalFeatures,
                                       "Direct translation to SPIR-V.", &members,
                                       "http://anglebug.com/4889"};
  };
  
  }  // namespace angle
  
  #endif  // ANGLE_PLATFORM_FEATURESMTL_H_
  

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