mewin/vulkan-hpp
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Add support for a full volk replacement by supporting a global DispatchLoaderDynamic. The global dynamic dispatcher will be available if either the define VULKAN_HPP_DISPATCH_LOADER_DYNAMIC is set to 1 or if VK_NO_PROTOTYPES is defined. In those cases it is required to add VULKAN_HPP_DEFAULT_DISPATCH_LOADER_DYNAMIC_STORAGE; to any compilation unit of the project to allocate storage for the dispatcher. (#390)

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This commit is contained in:
Markus Tavenrath
2019-09-25 11:59:39 +02:00
committed by Andreas Süßenbach
parent 9df0fac638
commit e26cb8113a
3 changed files with 2449 additions and 2075 deletions
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36
tests/DispatchLoaderDynamic/DispatchLoaderDynamic.cpp
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@@ -15,47 +15,41 @@
// VulkanHpp Samples : DispatchLoaderDynamic
// Compile test on DispatchLoaderDynamic functions
#define VULKAN_HPP_DISPATCH_LOADER_DYNAMIC 1
#include <vulkan/vulkan.h>
#include "vulkan/vulkan.hpp"
#include <iostream>
#include <map>
static char const* AppName = "DispatchLoaderDynamic";
static char const* EngineName = "Vulkan.hpp";
VULKAN_HPP_DEFAULT_DISPATCH_LOADER_DYNAMIC_STORAGE;
int main(int /*argc*/, char ** /*argv*/)
{
try
{
vk::DispatchLoaderDynamic dld0;
vk::DynamicLoader dl;
PFN_vkGetInstanceProcAddr vkGetInstanceProcAddr = dl.getProcAddress<PFN_vkGetInstanceProcAddr>("vkGetInstanceProcAddr");
VULKAN_HPP_DEFAULT_DISPATCHER.init(vkGetInstanceProcAddr);
// empty DispatchLoaderDynamic, used for init calls later on
vk::DispatchLoaderDynamic dld_boot(vkGetInstanceProcAddr);
vk::Instance instance = vk::createInstance({}, nullptr, dld_boot);
vk::Instance instance = vk::createInstance({}, nullptr);
vk::DispatchLoaderDynamic dld1(instance, vkGetInstanceProcAddr);
// compare to the empty dispatcher, and init the empty dispatcher the same way
assert(memcmp(&dld0, &dld1, sizeof(vk::DispatchLoaderDynamic)) != 0);
dld0.init(instance, vkGetInstanceProcAddr);
assert(memcmp(&dld0, &dld1, sizeof(vk::DispatchLoaderDynamic)) == 0);
// initialize function pointers for instance
VULKAN_HPP_DEFAULT_DISPATCHER.init(instance);
// create a dispatcher, based on additional vkDevice/vkGetDeviceProcAddr
std::vector<vk::PhysicalDevice> physicalDevices = instance.enumeratePhysicalDevices(dld1);
std::vector<vk::PhysicalDevice> physicalDevices = instance.enumeratePhysicalDevices();
assert(!physicalDevices.empty());
vk::Device device = physicalDevices[0].createDevice({}, nullptr, dld1);
vk::Device device = physicalDevices[0].createDevice({}, nullptr);
// device specialization functions
vk::DispatchLoaderDynamic dld2(instance, vkGetInstanceProcAddr, device);
// compare to "simpler" dispatcher and make them equal
assert(memcmp(&dld0, &dld2, sizeof(vk::DispatchLoaderDynamic)) != 0);
dld0.init(instance, vkGetInstanceProcAddr, device);
assert(memcmp(&dld0, &dld2, sizeof(vk::DispatchLoaderDynamic)) == 0);
// function pointer specialization for device
VULKAN_HPP_DEFAULT_DISPATCHER.init(device);
}
catch (vk::SystemError err)
{