kc3-lang/angle/src/libANGLE/cl_utils.cpp

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• Hash : a9512a9f
  Author :
  Date : 2023-11-29T14:56:29
  

  OpenCL: Replace error-return APIs to use angle::Result
  
  The motivation of converting existing CL APIs using
  "cl_int errorCode" to now use "angle::Result" is for better
  interop with internal ANGLE plumbing/abstractions.
  
  To facilitate this, we now make use of a TLS errorCode
  object that we set internally and read from entrypoint/stubs
  layer so that we can propagate back to user.
  
  Bug: angleproject:8435
  Change-Id: I7c2a786019c33c56649be4b6e8b61bc318497bb1
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5075772
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/libANGLE/cl_utils.cpp

• //
  // 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.
  //
  // cl_utils.cpp: Helper functions for the CL front end
  
  #include "libANGLE/cl_utils.h"
  
  #include "libANGLE/renderer/CLExtensions.h"
  
  namespace cl
  {
  
  size_t GetChannelCount(cl_channel_order channelOrder)
  {
      size_t count = 0u;
      switch (channelOrder)
      {
          case CL_R:
          case CL_A:
          case CL_LUMINANCE:
          case CL_INTENSITY:
          case CL_DEPTH:
              count = 1u;
              break;
          case CL_RG:
          case CL_RA:
          case CL_Rx:
              count = 2u;
              break;
          case CL_RGB:
          case CL_RGx:
          case CL_sRGB:
              count = 3u;
              break;
          case CL_RGBA:
          case CL_ARGB:
          case CL_BGRA:
          case CL_ABGR:
          case CL_RGBx:
          case CL_sRGBA:
          case CL_sBGRA:
          case CL_sRGBx:
              count = 4u;
              break;
          default:
              break;
      }
      return count;
  }
  
  size_t GetElementSize(const cl_image_format &image_format)
  {
      size_t size = 0u;
      switch (image_format.image_channel_data_type)
      {
          case CL_SNORM_INT8:
          case CL_UNORM_INT8:
          case CL_SIGNED_INT8:
          case CL_UNSIGNED_INT8:
              size = GetChannelCount(image_format.image_channel_order);
              break;
          case CL_SNORM_INT16:
          case CL_UNORM_INT16:
          case CL_SIGNED_INT16:
          case CL_UNSIGNED_INT16:
          case CL_HALF_FLOAT:
              size = 2u * GetChannelCount(image_format.image_channel_order);
              break;
          case CL_SIGNED_INT32:
          case CL_UNSIGNED_INT32:
          case CL_FLOAT:
              size = 4u * GetChannelCount(image_format.image_channel_order);
              break;
          case CL_UNORM_SHORT_565:
          case CL_UNORM_SHORT_555:
              size = 2u;
              break;
          case CL_UNORM_INT_101010:
          case CL_UNORM_INT_101010_2:
              size = 4u;
              break;
          default:
              break;
      }
      return size;
  }
  
  bool IsValidImageFormat(const cl_image_format *imageFormat, const rx::CLExtensions &extensions)
  {
      if (imageFormat == nullptr)
      {
          return false;
      }
      switch (imageFormat->image_channel_order)
      {
          case CL_R:
          case CL_A:
          case CL_LUMINANCE:
          case CL_INTENSITY:
          case CL_RG:
          case CL_RA:
          case CL_RGB:
          case CL_RGBA:
          case CL_ARGB:
          case CL_BGRA:
              break;
  
          case CL_Rx:
          case CL_RGx:
          case CL_RGBx:
              if (extensions.version < CL_MAKE_VERSION(1, 1, 0))
              {
                  return false;
              }
              break;
  
          case CL_ABGR:
          case CL_sRGB:
          case CL_sRGBA:
          case CL_sBGRA:
          case CL_sRGBx:
              if (extensions.version < CL_MAKE_VERSION(2, 0, 0))
              {
                  return false;
              }
              break;
  
          case CL_DEPTH:
              // CL_DEPTH can only be used if channel data type = CL_UNORM_INT16 or CL_FLOAT.
              if (imageFormat->image_channel_data_type != CL_UNORM_INT16 &&
                  imageFormat->image_channel_data_type != CL_FLOAT)
              {
                  return false;
              }
              if (!extensions.khrDepthImages)
              {
                  return false;
              }
              break;
  
          default:
              return false;
      }
      switch (imageFormat->image_channel_data_type)
      {
          case CL_SNORM_INT8:
          case CL_SNORM_INT16:
          case CL_UNORM_INT8:
          case CL_UNORM_INT16:
          case CL_SIGNED_INT8:
          case CL_SIGNED_INT16:
          case CL_SIGNED_INT32:
          case CL_UNSIGNED_INT8:
          case CL_UNSIGNED_INT16:
          case CL_UNSIGNED_INT32:
          case CL_HALF_FLOAT:
          case CL_FLOAT:
              break;
  
          case CL_UNORM_SHORT_565:
          case CL_UNORM_SHORT_555:
          case CL_UNORM_INT_101010:
              if (imageFormat->image_channel_order != CL_RGB &&
                  imageFormat->image_channel_order != CL_RGBx)
              {
                  return false;
              }
              break;
  
          case CL_UNORM_INT_101010_2:
              if (extensions.version < CL_MAKE_VERSION(2, 1, 0) ||
                  imageFormat->image_channel_order != CL_RGBA)
              {
                  return false;
              }
              break;
  
          default:
              return false;
      }
      return true;
  }
  
  thread_local cl_int gClErrorTls;
  
  }  // namespace cl
  

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