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

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• Hash : a6210a8f
  Author :
  Date : 2021-05-23T19:02:46
  

  CL: image object creation for front end and pass-through
  
  Add image object to front end and implement creation and info query.
  Cache more Device info for Image validation.
  
  Bug: angleproject:5956
  Change-Id: I38374f4c2c85287109c464ac90eb1bf49b07fa0a
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2912805
  Commit-Queue: John Plate <jplate@google.com>
  Reviewed-by: Cody Northrop <cnorthrop@google.com>
  Reviewed-by: Jamie Madill <jmadill@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>
  
  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;
  }
  
  }  // namespace cl
  

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