Function get_attribute_format

framework/gltf_loader.cpp:151–269

};

inline VkFormat get_attribute_format(const tinygltf::Model *model, uint32_t accessorId)
{
	assert(accessorId < model->accessors.size());
	auto &accessor = model->accessors[accessorId];

	VkFormat format;

	switch (accessor.componentType)
	{
		case TINYGLTF_COMPONENT_TYPE_BYTE:
		{
			static const std::map<int, VkFormat> mapped_format = {{TINYGLTF_TYPE_SCALAR, VK_FORMAT_R8_SINT},
			                                                      {TINYGLTF_TYPE_VEC2, VK_FORMAT_R8G8_SINT},
			                                                      {TINYGLTF_TYPE_VEC3, VK_FORMAT_R8G8B8_SINT},
			                                                      {TINYGLTF_TYPE_VEC4, VK_FORMAT_R8G8B8A8_SINT}};

			format = mapped_format.at(accessor.type);

			break;
		}
		case TINYGLTF_COMPONENT_TYPE_UNSIGNED_BYTE:
		{
			static const std::map<int, VkFormat> mapped_format = {{TINYGLTF_TYPE_SCALAR, VK_FORMAT_R8_UINT},
			                                                      {TINYGLTF_TYPE_VEC2, VK_FORMAT_R8G8_UINT},
			                                                      {TINYGLTF_TYPE_VEC3, VK_FORMAT_R8G8B8_UINT},
			                                                      {TINYGLTF_TYPE_VEC4, VK_FORMAT_R8G8B8A8_UINT}};

			static const std::map<int, VkFormat> mapped_format_normalize = {{TINYGLTF_TYPE_SCALAR, VK_FORMAT_R8_UNORM},
			                                                                {TINYGLTF_TYPE_VEC2, VK_FORMAT_R8G8_UNORM},
			                                                                {TINYGLTF_TYPE_VEC3, VK_FORMAT_R8G8B8_UNORM},
			                                                                {TINYGLTF_TYPE_VEC4, VK_FORMAT_R8G8B8A8_UNORM}};

			if (accessor.normalized)
			{
				format = mapped_format_normalize.at(accessor.type);
			}
			else
			{
				format = mapped_format.at(accessor.type);
			}

			break;
		}
		case TINYGLTF_COMPONENT_TYPE_SHORT:
		{
			static const std::map<int, VkFormat> mapped_format = {{TINYGLTF_TYPE_SCALAR, VK_FORMAT_R8_SINT},
			                                                      {TINYGLTF_TYPE_VEC2, VK_FORMAT_R8G8_SINT},
			                                                      {TINYGLTF_TYPE_VEC3, VK_FORMAT_R8G8B8_SINT},
			                                                      {TINYGLTF_TYPE_VEC4, VK_FORMAT_R8G8B8A8_SINT}};

			format = mapped_format.at(accessor.type);

			break;
		}
		case TINYGLTF_COMPONENT_TYPE_UNSIGNED_SHORT:
		{
			static const std::map<int, VkFormat> mapped_format = {{TINYGLTF_TYPE_SCALAR, VK_FORMAT_R16_UINT},
			                                                      {TINYGLTF_TYPE_VEC2, VK_FORMAT_R16G16_UINT},