Method vulkan_argument_buffer

src/device/vulkan/vulkan_argument_buffer.cpp:32–56

namespace fl {

vulkan_argument_buffer::vulkan_argument_buffer(const device_function& func_,
											   std::shared_ptr<device_buffer> storage_buffer_,
											   const toolchain::function_info& arg_info_,
											   const vulkan_descriptor_set_layout_t& layout_,
											   std::vector<VkDeviceSize>&& argument_offsets_,
											   std::span<uint8_t> mapped_host_memory_,
											   std::shared_ptr<device_buffer> constant_buffer_storage_,
											   std::span<uint8_t> constant_buffer_mapping_) :
argument_buffer(func_, storage_buffer_), arg_info(arg_info_), layout(layout_), argument_offsets(argument_offsets_),
mapped_host_memory(mapped_host_memory_), constant_buffer_storage(constant_buffer_storage_), constant_buffer_mapping(constant_buffer_mapping_) {
	if (mapped_host_memory.data() == nullptr || mapped_host_memory.size_bytes() == 0) {
		throw std::runtime_error("argument buffer host memory has not been mapped");
	}
	if (constant_buffer_storage && (constant_buffer_mapping.data() == nullptr || constant_buffer_mapping.size_bytes() == 0)) {
		throw std::runtime_error("constant buffer for argument buffer exists, but no host memory has been mapped");
	}
	if (has_flag<toolchain::FUNCTION_FLAGS::USES_SOFT_PRINTF>(arg_info.flags)) {
		throw std::runtime_error("should not have soft-printf flag in argument buffer function info");
	}
#if defined(FLOOR_DEBUG)
	if ((((const vulkan_buffer*)storage_buffer.get())->get_vulkan_buffer_usage() & VK_BUFFER_USAGE_2_RESOURCE_DESCRIPTOR_BUFFER_BIT_EXT) == 0) {
		throw std::runtime_error("argument buffer storage has not been created with descriptor buffer support");
	}
#endif
}

vulkan_argument_buffer::~vulkan_argument_buffer() {
	// ensure buffers are unmapped when they are heap-allocated