OpenDX/src/dxvk/dxvk_util.cpp

#include "dxvk_util.h"

namespace dxvk::util {
  
  VkPipelineStageFlags pipelineStages(
          VkShaderStageFlags shaderStages) {
    VkPipelineStageFlags result = 0;
    if (shaderStages & VK_SHADER_STAGE_COMPUTE_BIT)
      result |= VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT;
    if (shaderStages & VK_SHADER_STAGE_VERTEX_BIT)
      result |= VK_PIPELINE_STAGE_VERTEX_SHADER_BIT;
    if (shaderStages & VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT)
      result |= VK_PIPELINE_STAGE_TESSELLATION_CONTROL_SHADER_BIT;
    if (shaderStages & VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT)
      result |= VK_PIPELINE_STAGE_TESSELLATION_EVALUATION_SHADER_BIT;
    if (shaderStages & VK_SHADER_STAGE_GEOMETRY_BIT)
      result |= VK_PIPELINE_STAGE_GEOMETRY_SHADER_BIT;
    if (shaderStages & VK_SHADER_STAGE_FRAGMENT_BIT)
      result |= VK_PIPELINE_STAGE_FRAGMENT_SHADER_BIT;
    return result;
  }
  
  
  uint32_t computeMipLevelCount(VkExtent3D imageSize) {
    uint32_t maxDim = std::max(imageSize.width, imageSize.height);
             maxDim = std::max(imageSize.depth, maxDim);
    uint32_t mipCnt = 0;
    
    while (maxDim > 0) {
      mipCnt += 1;
      maxDim /= 2;
    }
    
    return mipCnt;
  }
  
}