kc3-lang/angle/src/compiler/translator/TranslatorMetalDirect/TranslatorMetalUtils.cpp

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• Author : Kyle Piddington
  Date : 2021-04-26 16:56:15
  Hash : d7aa0130
  Message : Upstream Apple's direct-to-Metal backend: compile translator. This change is meant to merge the translator 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 translator code in a state that compiles, but not to switch the Metal backend over to use this translator backend yet. Bug: angleproject:5505 Change-Id: I68a6354604498cd5fd1eb96c13fc56f3b38f2bd0 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2897536 Reviewed-by: Jonah Ryan-Davis <jonahr@google.com> Commit-Queue: Jonah Ryan-Davis <jonahr@google.com>

• src/compiler/translator/TranslatorMetalDirect/TranslatorMetalUtils.cpp

• //
  // Copyright 2002 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.
  //
  
  #if defined(_MSC_VER)
  #    pragma warning(disable : 4718)
  #endif
  #include "compiler/translator/TranslatorMetalDirect/TranslatorMetalUtils.h"
  #include <algorithm>
  #include <climits>
  #include "compiler/translator/HashNames.h"
  #include "compiler/translator/ImmutableString.h"
  #include "compiler/translator/InfoSink.h"
  #include "compiler/translator/IntermNode.h"
  #include "compiler/translator/SymbolTable.h"
  #include "compiler/translator/Types.h"
  
  namespace sh
  {
  
  const char *getBasicMetalString(const TType *t)
  {
      switch (t->getBasicType())
      {
          case EbtVoid:
              return "void";
          case EbtFloat:
              return "float";
          case EbtInt:
              return "int";
          case EbtUInt:
              return "uint";
          case EbtBool:
              return "bool";
          case EbtYuvCscStandardEXT:
              return "yuvCscStandardEXT";
          case EbtSampler2D:
              return "sampler2D";
          case EbtSampler3D:
              return "sampler3D";
          case EbtSamplerCube:
              return "samplerCube";
          case EbtSamplerExternalOES:
              return "samplerExternalOES";
          case EbtSamplerExternal2DY2YEXT:
              return "__samplerExternal2DY2YEXT";
          case EbtSampler2DRect:
              return "sampler2DRect";
          case EbtSampler2DArray:
              return "sampler2DArray";
          case EbtSampler2DMS:
              return "sampler2DMS";
          case EbtSampler2DMSArray:
              return "sampler2DMSArray";
          case EbtSamplerCubeArray:
              return "samplerCubeArray";
          case EbtISampler2D:
              return "isampler2D";
          case EbtISampler3D:
              return "isampler3D";
          case EbtISamplerCube:
              return "isamplerCube";
          case EbtISampler2DArray:
              return "isampler2DArray";
          case EbtISampler2DMS:
              return "isampler2DMS";
          case EbtISampler2DMSArray:
              return "isampler2DMSArray";
          case EbtISamplerCubeArray:
              return "isamplerCubeArray";
          case EbtUSampler2D:
              return "usampler2D";
          case EbtUSampler3D:
              return "usampler3D";
          case EbtUSamplerCube:
              return "usamplerCube";
          case EbtUSampler2DArray:
              return "usampler2DArray";
          case EbtUSampler2DMS:
              return "usampler2DMS";
          case EbtUSampler2DMSArray:
              return "usampler2DMSArray";
          case EbtUSamplerCubeArray:
              return "usamplerCubeArray";
          case EbtSampler2DShadow:
              return "sampler2DShadow";
          case EbtSamplerCubeShadow:
              return "samplerCubeShadow";
          case EbtSampler2DArrayShadow:
              return "sampler2DArrayShadow";
          case EbtSamplerCubeArrayShadow:
              return "samplerCubeArrayShadow";
          case EbtStruct:
              return "structure";
          case EbtInterfaceBlock:
              return "interface block";
          case EbtImage2D:
              return "texture2d";
          case EbtIImage2D:
              return "texture2d<int>";
          case EbtUImage2D:
              return "texture2d<uint>";
          case EbtImage3D:
              return "texture3d";
          case EbtIImage3D:
              return "texture3d<int>";
          case EbtUImage3D:
              return "texture3d<uint>";
          case EbtImage2DArray:
              if (t->isUnsizedArray())
              {
                  return "array_ref<texture2d>";
              }
              else
              {
                  return "NOT_IMPLEMENTED";
              }
          case EbtIImage2DArray:
              if (t->isUnsizedArray())
              {
                  return "array_ref<texture2d<int>>";
              }
              else
              {
                  return "NOT_IMPLEMENTED";
              }
          case EbtUImage2DArray:
              if (t->isUnsizedArray())
              {
                  return "array_ref<texture2d<uint>>";
              }
              else
              {
                  return "NOT_IMPLEMENTED";
              }
          case EbtImageCube:
              return "texturecube";
          case EbtIImageCube:
              return "texturecube<int>";
          case EbtUImageCube:
              return "texturecube<uint>";
          case EbtImageCubeArray:
              if (t->isUnsizedArray())
              {
                  return "array_ref<texturecube>";
              }
              else
              {
                  return "NOT_IMPLEMENTED";
              }
          case EbtIImageCubeArray:
              if (t->isUnsizedArray())
              {
                  return "array_ref<texturecube<int>>";
              }
              else
              {
                  return "NOT_IMPLEMENTED";
              }
          case EbtUImageCubeArray:
              if (t->isUnsizedArray())
              {
                  return "array_ref<texturecube<uint>>";
              }
              else
              {
                  return "NOT_IMPLEMENTED";
              }
          case EbtAtomicCounter:
              return "atomic_uint";
          case EbtSamplerVideoWEBGL:
              return "$samplerVideoWEBGL";
          default:
              UNREACHABLE();
              return "unknown type";
      }
  }
  
  const char *getBuiltInMetalTypeNameString(const TType *t)
  {
      if (t->isMatrix())
      {
          switch (t->getCols())
          {
              case 2:
                  switch (t->getRows())
                  {
                      case 2:
                          return "float2";
                      case 3:
                          return "float2x3";
                      case 4:
                          return "float2x4";
                      default:
                          UNREACHABLE();
                          return nullptr;
                  }
              case 3:
                  switch (t->getRows())
                  {
                      case 2:
                          return "float3x2";
                      case 3:
                          return "float3";
                      case 4:
                          return "float3x4";
                      default:
                          UNREACHABLE();
                          return nullptr;
                  }
              case 4:
                  switch (t->getRows())
                  {
                      case 2:
                          return "float4x2";
                      case 3:
                          return "float4x3";
                      case 4:
                          return "float4";
                      default:
                          UNREACHABLE();
                          return nullptr;
                  }
              default:
                  UNREACHABLE();
                  return nullptr;
          }
      }
      if (t->isVector())
      {
          switch (t->getBasicType())
          {
              case EbtFloat:
                  switch (t->getNominalSize())
                  {
                      case 2:
                          return "float2";
                      case 3:
                          return "float3";
                      case 4:
                          return "float4";
                      default:
                          UNREACHABLE();
                          return nullptr;
                  }
              case EbtInt:
                  switch (t->getNominalSize())
                  {
                      case 2:
                          return "int2";
                      case 3:
                          return "int3";
                      case 4:
                          return "int4";
                      default:
                          UNREACHABLE();
                          return nullptr;
                  }
              case EbtBool:
                  switch (t->getNominalSize())
                  {
                      case 2:
                          return "bool2";
                      case 3:
                          return "bool3";
                      case 4:
                          return "bool4";
                      default:
                          UNREACHABLE();
                          return nullptr;
                  }
              case EbtUInt:
                  switch (t->getNominalSize())
                  {
                      case 2:
                          return "uint2";
                      case 3:
                          return "uint3";
                      case 4:
                          return "uint4";
                      default:
                          UNREACHABLE();
                          return nullptr;
                  }
              default:
                  UNREACHABLE();
                  return nullptr;
          }
      }
      ASSERT(t->getBasicType() != EbtStruct);
      ASSERT(t->getBasicType() != EbtInterfaceBlock);
      return getBasicMetalString(t);
  }
  
  ImmutableString GetMetalTypeName(const TType &type, ShHashFunction64 hashFunction, NameMap *nameMap)
  {
      if (type.getBasicType() == EbtStruct)
          return HashName(type.getStruct(), hashFunction, nameMap);
      else
          return ImmutableString(getBuiltInMetalTypeNameString(&type));
  }
  
  }  // namespace sh