Method createView

3rdparty/bgfx/src/renderer_vk.cpp:7061–7128

	}

	VkResult TextureVK::createView(uint32_t _layer, uint32_t _numLayers, uint32_t _mip, uint32_t _numMips, VkImageViewType _type, VkImageAspectFlags _aspectMask, bool _renderTarget, ::VkImageView* _view) const
	{
		VkResult result = VK_SUCCESS;

		if (VK_IMAGE_VIEW_TYPE_3D == m_type)
		{
			BX_ASSERT(false
				  || !_renderTarget
				  || !(m_aspectFlags & (VK_IMAGE_ASPECT_DEPTH_BIT | VK_IMAGE_ASPECT_STENCIL_BIT) )
				, "3D image can't be a depth attachment"
			);
		}

		if (VK_IMAGE_VIEW_TYPE_CUBE       == _type
		||  VK_IMAGE_VIEW_TYPE_CUBE_ARRAY == _type)
		{
			BX_ASSERT(_numLayers % 6 == 0, "");
			BX_ASSERT(
				  VK_IMAGE_VIEW_TYPE_3D != m_type
				, "3D image can't be aliased as a cube texture"
				);
		}

		VkImageViewCreateInfo viewInfo;
		viewInfo.sType      = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
		viewInfo.pNext      = NULL;
		viewInfo.flags      = 0;
		viewInfo.image      = ( (VK_NULL_HANDLE != m_singleMsaaImage) && !_renderTarget)
			? m_singleMsaaImage
			: m_textureImage
			;
		viewInfo.viewType   = _type;
		viewInfo.format     = m_format;
		viewInfo.components = m_components;
		viewInfo.subresourceRange.aspectMask     = m_aspectFlags & _aspectMask;
		viewInfo.subresourceRange.baseMipLevel   = _mip;
		viewInfo.subresourceRange.levelCount     = _numMips;
		viewInfo.subresourceRange.baseArrayLayer = _layer;
		viewInfo.subresourceRange.layerCount     = 1;

		if (VK_IMAGE_VIEW_TYPE_2D != _type
		&&  VK_IMAGE_VIEW_TYPE_3D != _type)
		{
			viewInfo.subresourceRange.layerCount = VK_IMAGE_VIEW_TYPE_CUBE == _type
				? 6
				: _numLayers
				;
		}

		VkImageView view = VK_NULL_HANDLE;

		result = vkCreateImageView(
			  s_renderVK->m_device
			, &viewInfo
			, s_renderVK->m_allocatorCb
			, &view
			);