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primus_vk.cpp
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primus_vk.cpp
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#include "vulkan.h"
#include "vk_layer.h"
#include "vk_layer_dispatch_table.h"
#include <xcb/xcb.h>
#include <vulkan/vulkan_xcb.h>
#include <cassert>
#include <cstring>
#include <mutex>
#include <condition_variable>
#include <map>
#include <vector>
#include <list>
#include <iostream>
#include <pthread.h>
#include <stdexcept>
#include <dlfcn.h>
#include <vector>
#include <memory>
#include <thread>
#include <algorithm>
#include <sstream>
#include <string>
#include <chrono>
#undef VK_LAYER_EXPORT
#if defined(WIN32)
#define VK_LAYER_EXPORT extern "C" __declspec(dllexport)
#else
#define VK_LAYER_EXPORT extern "C"
#endif
// single global lock, for simplicity
std::mutex global_lock;
typedef std::lock_guard<std::mutex> scoped_lock;
// use the loader's dispatch table pointer as a key for dispatch map lookups
template<typename DispatchableType>
void *&GetKey(DispatchableType inst)
{
return *(void **)inst;
}
class CreateOtherDevice;
struct InstanceInfo {
VkInstance instance;
VkPhysicalDevice render;
VkPhysicalDevice display;
CreateOtherDevice *cod;
bool secondarySpawned;
};
std::map<void *, VkLayerInstanceDispatchTable> instance_dispatch;
VkLayerInstanceDispatchTable loader_dispatch;
// VkInstance->disp is beeing malloc'ed for every new instance
// so we can assume it to be a good key.
std::map<void *, InstanceInfo> instance_info;
std::map<void *, InstanceInfo*> device_instance_info;
std::map<void *, VkLayerDispatchTable> device_dispatch;
std::shared_ptr<void> libvulkan(dlopen("libvulkan.so.1", RTLD_NOW), dlclose);
// #define TRACE(x)
#define TRACE(x) std::cout << "PrimusVK: " << x << "\n";
#define TRACE_PROFILING(x)
// #define TRACE_PROFILING(x) std::cout << "PrimusVK: " << x << "\n";
#define TRACE_PROFILING_EVENT(x, y)
// #define TRACE_PROFILING_EVENT(idx, evt) std::cout << "PrimusVK-profiling: " << idx << " " << std::chrono::duration_cast<std::chrono::nanoseconds>(std::chrono::steady_clock::now() - primus_start).count() << " " << evt << "\n";
#define TRACE_FRAME(x)
// #define TRACE_FRAME(x) std::cout << "PrimusVK: " << x << "\n";
#define VK_CHECK_RESULT(x) do{ const VkResult r = x; if(r != VK_SUCCESS){printf("Error %d in %d\n", r, __LINE__);}}while(0);
// #define VK_CHECK_RESULT(x) if(x != VK_SUCCESS){printf("Error %d, in %d\n", x, __LINE__);}
void GetEnvVendorDeviceIDs(std::string env, uint32_t &vendor, uint32_t &device)
{
char *envstr = getenv(env.c_str());
if(envstr != nullptr){
std::stringstream ss(envstr);
std::string item;
std::vector<uint32_t> hexnums(2);
int i = 0;
while(std::getline(ss, item, ':') && (i < 2)) {
uint32_t num = 0;
std::stringstream _ss;
_ss << std::hex << item;
_ss >> num;
hexnums[i] = num;
++i;
}
vendor = hexnums[0];
device = hexnums[1];
}
}
bool IsDevice(
VkPhysicalDeviceProperties props,
uint32_t vendor,
uint32_t device,
VkPhysicalDeviceType type = VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU)
{
if((vendor == 0) && (props.deviceType == type)){
if(type == VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU){
TRACE("Got integrated gpu!");
} else {
TRACE("Got discrete gpu!");
}
TRACE("Device: " << props.deviceName);
TRACE(" Type: " << props.deviceType);
return true;
}
if((props.vendorID == vendor) && (props.deviceID == device)){
TRACE("Got device from env!");
TRACE("Device: " << props.deviceName);
TRACE(" Type: " << props.deviceType);
return true;
}
if(props.vendorID == vendor){
TRACE("Got device from env! (via vendorID)");
TRACE("Device: " << props.deviceName);
TRACE(" Type: " << props.deviceType);
return true;
}
return false;
}
///////////////////////////////////////////////////////////////////////////////////////////
// Layer init and shutdown
VkLayerDispatchTable fetchDispatchTable(PFN_vkGetDeviceProcAddr gdpa, VkDevice *pDevice);
VK_LAYER_EXPORT VkResult VKAPI_CALL PrimusVK_CreateInstance(
const VkInstanceCreateInfo* pCreateInfo,
const VkAllocationCallbacks* pAllocator,
VkInstance* pInstance)
{
TRACE("CreateInstance");
VkLayerInstanceCreateInfo *layerCreateInfo = (VkLayerInstanceCreateInfo *)pCreateInfo->pNext;
// step through the chain of pNext until we get to the link info
while(layerCreateInfo && (layerCreateInfo->sType != VK_STRUCTURE_TYPE_LOADER_INSTANCE_CREATE_INFO ||
layerCreateInfo->function != VK_LAYER_LINK_INFO))
{
layerCreateInfo = (VkLayerInstanceCreateInfo *)layerCreateInfo->pNext;
}
if(layerCreateInfo == NULL)
{
// No loader instance create info
return VK_ERROR_INITIALIZATION_FAILED;
}
PFN_vkGetInstanceProcAddr gpa = layerCreateInfo->u.pLayerInfo->pfnNextGetInstanceProcAddr;
// move chain on for next layer
layerCreateInfo->u.pLayerInfo = layerCreateInfo->u.pLayerInfo->pNext;
PFN_vkCreateInstance createFunc = (PFN_vkCreateInstance)gpa(VK_NULL_HANDLE, "vkCreateInstance");
VK_CHECK_RESULT( createFunc(pCreateInfo, pAllocator, pInstance) );
// fetch our own dispatch table for the functions we need, into the next layer
VkLayerInstanceDispatchTable dispatchTable;
#define FORWARD(func) dispatchTable.func = (PFN_vk##func)gpa(*pInstance, "vk" #func);
FORWARD(GetInstanceProcAddr);
FORWARD(EnumeratePhysicalDevices);
FORWARD(DestroyInstance);
FORWARD(EnumerateDeviceExtensionProperties);
FORWARD(GetPhysicalDeviceProperties);
#undef FORWARD
uint32_t displayVendorID = 0;
uint32_t displayDeviceID = 0;
uint32_t renderVendorID = 0;
uint32_t renderDeviceID = 0;
GetEnvVendorDeviceIDs("PRIMUS_VK_DISPLAYID", displayVendorID, displayDeviceID);
GetEnvVendorDeviceIDs("PRIMUS_VK_RENDERID", renderVendorID, renderDeviceID);
std::vector<VkPhysicalDevice> physicalDevices;
{
auto enumerateDevices = dispatchTable.EnumeratePhysicalDevices;
TRACE("Getting devices");
uint32_t gpuCount = 0;
enumerateDevices(*pInstance, &gpuCount, nullptr);
physicalDevices.resize(gpuCount);
enumerateDevices(*pInstance, &gpuCount, physicalDevices.data());
}
TRACE("Searching for display GPU:");
VkPhysicalDevice display = VK_NULL_HANDLE;
for(auto &dev: physicalDevices){
VkPhysicalDeviceProperties props;
dispatchTable.GetPhysicalDeviceProperties(dev, &props);
TRACE(GetKey(dev) << ": ");
if(IsDevice(props, displayVendorID, displayDeviceID, VK_PHYSICAL_DEVICE_TYPE_INTEGRATED_GPU)){
display = dev;
break;
}
}
TRACE("Searching for render GPU:");
VkPhysicalDevice render = VK_NULL_HANDLE;
for(auto &dev: physicalDevices){
VkPhysicalDeviceProperties props;
dispatchTable.GetPhysicalDeviceProperties(dev, &props);
TRACE(GetKey(dev) << ": ");
if(IsDevice(props, renderVendorID, renderDeviceID)){
render = dev;
break;
}
}
if(display == VK_NULL_HANDLE || render == VK_NULL_HANDLE){
const auto c_icd_filenames = getenv("VK_ICD_FILENAMES");
if(display == VK_NULL_HANDLE) {
TRACE("No device for the display GPU found. Are the intel-mesa drivers installed?");
}
if(render == VK_NULL_HANDLE) {
TRACE("No device for the rendering GPU found. Is the correct driver installed?");
}
if(c_icd_filenames != nullptr) {
TRACE("VK_ICD_FILENAMES=" << c_icd_filenames);
} else {
TRACE("VK_ICD_FILENAMES not set");
}
return VK_ERROR_INITIALIZATION_FAILED;
}
#define FORWARD(func) dispatchTable.func = (PFN_vk##func)gpa(*pInstance, "vk" #func);
FORWARD(GetPhysicalDeviceQueueFamilyProperties);
#include "primus_vk_forwarding.h"
#undef FORWARD
#define _FORWARD(x) loader_dispatch.x =(PFN_vk##x) dlsym(libvulkan.get(), "vk" #x);
_FORWARD(CreateDevice);
_FORWARD(EnumeratePhysicalDevices);
_FORWARD(GetPhysicalDeviceMemoryProperties);
_FORWARD(GetPhysicalDeviceQueueFamilyProperties);
#undef _FORWARD
// store the table by key
{
scoped_lock l(global_lock);
instance_dispatch[GetKey(*pInstance)] = dispatchTable;
instance_info[GetKey(*pInstance)] = InstanceInfo{.instance = *pInstance, .render = render, .display=display, .cod=nullptr, .secondarySpawned = false};
}
return VK_SUCCESS;
}
VK_LAYER_EXPORT void VKAPI_CALL PrimusVK_DestroyInstance(VkInstance instance, const VkAllocationCallbacks* pAllocator)
{
scoped_lock l(global_lock);
instance_dispatch[GetKey(instance)].DestroyInstance(instance, pAllocator);
instance_dispatch.erase(GetKey(instance));
instance_info.erase(GetKey(instance));
}
struct FramebufferImage;
struct MappedMemory{
VkDevice device;
VkDeviceMemory mem;
char* data;
MappedMemory(VkDevice device, FramebufferImage &img);
~MappedMemory();
};
struct FramebufferImage {
VkImage img;
VkDeviceMemory mem;
VkDevice device;
std::shared_ptr<MappedMemory> mapped;
FramebufferImage(FramebufferImage &) = delete;
FramebufferImage(VkDevice device, VkExtent2D size, VkImageTiling tiling, VkImageUsageFlags usage, int memoryTypeIndex): device(device){
TRACE("Creating image: " << size.width << "x" << size.height);
VkImageCreateInfo imageCreateCI {};
imageCreateCI.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
imageCreateCI.imageType = VK_IMAGE_TYPE_2D;
imageCreateCI.format = VK_FORMAT_B8G8R8A8_UNORM;
imageCreateCI.extent.width = size.width;
imageCreateCI.extent.height = size.height;
imageCreateCI.extent.depth = 1;
imageCreateCI.arrayLayers = 1;
imageCreateCI.mipLevels = 1;
imageCreateCI.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
imageCreateCI.samples = VK_SAMPLE_COUNT_1_BIT;
imageCreateCI.tiling = tiling;
imageCreateCI.usage = usage;
VK_CHECK_RESULT(device_dispatch[GetKey(device)].CreateImage(device, &imageCreateCI, nullptr, &img));
VkMemoryRequirements memRequirements {};
VkMemoryAllocateInfo memAllocInfo {.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO};
device_dispatch[GetKey(device)].GetImageMemoryRequirements(device, img, &memRequirements);
memAllocInfo.allocationSize = memRequirements.size;
memAllocInfo.memoryTypeIndex = memoryTypeIndex;
VK_CHECK_RESULT(device_dispatch[GetKey(device)].AllocateMemory(device, &memAllocInfo, nullptr, &mem));
VK_CHECK_RESULT(device_dispatch[GetKey(device)].BindImageMemory(device, img, mem, 0));
}
std::shared_ptr<MappedMemory> getMapped(){
if(!mapped){
throw std::runtime_error("not mapped");
}
return mapped;
}
void map(){
mapped = std::make_shared<MappedMemory>(device, *this);
}
VkSubresourceLayout getLayout(){
VkImageSubresource subResource { VK_IMAGE_ASPECT_COLOR_BIT, 0, 0 };
VkSubresourceLayout subResourceLayout;
device_dispatch[GetKey(device)].GetImageSubresourceLayout(device, img, &subResource, &subResourceLayout);
return subResourceLayout;
}
~FramebufferImage(){
mapped.reset();
device_dispatch[GetKey(device)].FreeMemory(device, mem, nullptr);
device_dispatch[GetKey(device)].DestroyImage(device, img, nullptr);
}
};
MappedMemory::MappedMemory(VkDevice device, FramebufferImage &img): device(device), mem(img.mem){
device_dispatch[GetKey(device)].MapMemory(device, img.mem, 0, VK_WHOLE_SIZE, 0, (void**)&data);
}
MappedMemory::~MappedMemory(){
device_dispatch[GetKey(device)].UnmapMemory(device, mem);
}
class CommandBuffer;
class Fence{
VkDevice device;
public:
VkFence fence;
Fence(VkDevice dev): device(dev){
// Create fence to ensure that the command buffer has finished executing
VkFenceCreateInfo fenceInfo = {.sType=VK_STRUCTURE_TYPE_FENCE_CREATE_INFO};
fenceInfo.flags = 0;
VK_CHECK_RESULT(device_dispatch[GetKey(device)].CreateFence(device, &fenceInfo, nullptr, &fence));
}
void await(){
// Wait for the fence to signal that command buffer has finished executing
VK_CHECK_RESULT(device_dispatch[GetKey(device)].WaitForFences(device, 1, &fence, VK_TRUE, 10000000000L));
}
~Fence(){
device_dispatch[GetKey(device)].DestroyFence(device, fence, nullptr);
}
};
class Semaphore{
VkDevice device;
public:
VkSemaphore sem;
Semaphore(VkDevice dev): device(dev){
VkSemaphoreCreateInfo semInfo = {.sType=VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO};
semInfo.flags = 0;
VK_CHECK_RESULT(device_dispatch[GetKey(device)].CreateSemaphore(device, &semInfo, nullptr, &sem));
}
~Semaphore(){
device_dispatch[GetKey(device)].DestroySemaphore(device, sem, nullptr);
}
};
struct PrimusSwapchain{
std::chrono::steady_clock::time_point lastPresent = std::chrono::steady_clock::now();
VkDevice device;
VkQueue render_queue;
VkDevice display_device;
std::mutex displayQueueMutex;
VkQueue display_queue;
VkSwapchainKHR backend;
std::vector<std::shared_ptr<FramebufferImage>> render_images;
std::vector<std::shared_ptr<FramebufferImage>> render_copy_images;
std::vector<std::shared_ptr<FramebufferImage>> display_src_images;
std::vector<VkImage> display_images;
VkExtent2D imgSize;
std::vector<std::shared_ptr<CommandBuffer>> render_copy_commands;
std::vector<std::shared_ptr<CommandBuffer>> display_commands;
std::vector<std::unique_ptr<std::thread>> threads;
CreateOtherDevice *cod;
PrimusSwapchain(PrimusSwapchain &) = delete;
PrimusSwapchain(VkDevice device, VkDevice display_device, VkSwapchainKHR backend, const VkSwapchainCreateInfoKHR *pCreateInfo, uint32_t imageCount, CreateOtherDevice *cod):
device(device), display_device(display_device), backend(backend), cod(cod){
// TODO automatically find correct queue and not choose 0 forcibly
device_dispatch[GetKey(device)].GetDeviceQueue(device, 0, 0, &render_queue);
device_dispatch[GetKey(display_device)].GetDeviceQueue(display_device, 0, 0, &display_queue);
uint32_t image_count;
device_dispatch[GetKey(display_device)].GetSwapchainImagesKHR(display_device, backend, &image_count, nullptr);
TRACE("Image aquiring: " << image_count);
display_images.resize(image_count);
device_dispatch[GetKey(display_device)].GetSwapchainImagesKHR(display_device, backend, &image_count, display_images.data());
render_images.resize(image_count);
render_copy_images.resize(image_count);
display_src_images.resize(image_count);
display_commands.resize(image_count);
render_copy_commands.resize(image_count);
imgSize = pCreateInfo->imageExtent;
initImages();
createCommandBuffers();
TRACE("Creating a Swapchain thread.");
size_t thread_count = 1;
char *m_env = getenv("PRIMUS_VK_MULTITHREADING");
if(m_env == nullptr || std::string{m_env} != "1"){
thread_count = imageCount;
}
threads.resize(thread_count);
for(auto &thread: threads){
thread = std::unique_ptr<std::thread>(new std::thread([this](){this->run();}));
pthread_setname_np(thread->native_handle(), "swapchain-thread");
}
}
void initImages();
void createCommandBuffers();
void copyImageData(uint32_t idx, std::vector<VkSemaphore> sems);
void storeImage(uint32_t index, VkDevice device, VkExtent2D imgSize, VkQueue queue, VkFormat colorFormat, std::vector<VkSemaphore> wait_on, Fence ¬ify);
void queue(VkQueue queue, const VkPresentInfoKHR *pPresentInfo);
std::mutex queueMutex;
std::condition_variable has_work;
bool active = true;
struct QueueItem {
VkQueue queue;
VkPresentInfoKHR pPresentInfo;
uint32_t imgIndex;
std::unique_ptr<Fence> fence;
};
std::list<QueueItem> work;
std::list<QueueItem> in_progress;
void present(const QueueItem &workItem);
void run();
void stop();
};
bool list_all_gpus = false;
class CreateOtherDevice {
public:
VkPhysicalDevice display_dev;
VkPhysicalDevice render_dev;
VkPhysicalDeviceMemoryProperties display_mem;
VkPhysicalDeviceMemoryProperties render_mem;
VkDevice render_gpu;
VkDevice display_gpu;
std::unique_ptr<std::thread> thread;
CreateOtherDevice(VkPhysicalDevice display_dev, VkPhysicalDevice render_dev, VkDevice render_gpu):
display_dev(display_dev), render_dev(render_dev), render_gpu(render_gpu){
}
void run(){
auto &minstance_info = instance_info[GetKey(render_dev)];
VkDevice pDeviceLogic;
TRACE("Thread running");
TRACE("getting rendering suff: " << GetKey(display_dev));
uint32_t gpuCount;
list_all_gpus = true;
loader_dispatch.EnumeratePhysicalDevices(minstance_info.instance, &gpuCount, nullptr);
TRACE("Gpus: " << gpuCount);
std::vector<VkPhysicalDevice> physicalDevices(gpuCount);
loader_dispatch.EnumeratePhysicalDevices(minstance_info.instance, &gpuCount, physicalDevices.data());
list_all_gpus = false;
display_dev = physicalDevices[1];
TRACE("phys[1]: " << display_dev);
loader_dispatch.GetPhysicalDeviceMemoryProperties(display_dev, &display_mem);
loader_dispatch.GetPhysicalDeviceMemoryProperties(physicalDevices[0], &render_mem);
std::vector<VkQueueFamilyProperties> queueFamilyProperties;
if(true){
PFN_vkGetPhysicalDeviceQueueFamilyProperties getQueues = loader_dispatch.GetPhysicalDeviceQueueFamilyProperties;
uint32_t queueFamilyCount;
getQueues(display_dev, &queueFamilyCount, nullptr);
assert(queueFamilyCount > 0);
queueFamilyProperties.resize(queueFamilyCount);
getQueues(display_dev, &queueFamilyCount, queueFamilyProperties.data());
TRACE("render queues: " << queueFamilyCount);
for(auto &props : queueFamilyProperties){
TRACE(" flags: " << props.queueFlags);
}
}
VkDeviceCreateInfo createInfo = {};
createInfo.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
VkDeviceQueueCreateInfo queueInfo{};
queueInfo.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
queueInfo.queueFamilyIndex = 0;
queueInfo.queueCount = 1;
const float defaultQueuePriority(0.0f);
queueInfo.pQueuePriorities = &defaultQueuePriority;
createInfo.queueCreateInfoCount = 1;
createInfo.pQueueCreateInfos = &queueInfo;
createInfo.enabledExtensionCount = 1;
const char *swap[] = {VK_KHR_SWAPCHAIN_EXTENSION_NAME};
createInfo.ppEnabledExtensionNames = swap;
VkResult ret = loader_dispatch.CreateDevice(display_dev, &createInfo, nullptr, &pDeviceLogic);
TRACE("Create Graphics FINISHED!: " << ret);
TRACE("Display: " << GetKey(pDeviceLogic));
TRACE("storing as reference to: " << GetKey(render_gpu));
display_gpu = pDeviceLogic;
}
void start(){
thread = std::unique_ptr<std::thread>(new std::thread([this](){this->run();}));
}
void join(){
if(thread == nullptr) { TRACE( "Refusing second join" ); return; }
thread->join();
thread.reset();
}
};
class CommandBuffer {
VkCommandPool commandPool;
VkDevice device;
public:
VkCommandBuffer cmd;
CommandBuffer(VkDevice device) : device(device) {
VkCommandPoolCreateInfo poolInfo = {.sType = VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO};
poolInfo.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
poolInfo.queueFamilyIndex = 0;
VK_CHECK_RESULT(device_dispatch[GetKey(device)].CreateCommandPool(device, &poolInfo, nullptr, &commandPool));
VkCommandBufferAllocateInfo cmdBufAllocateInfo = {.sType=VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO};
cmdBufAllocateInfo.commandPool = commandPool;
cmdBufAllocateInfo.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
cmdBufAllocateInfo.commandBufferCount = 1;
VK_CHECK_RESULT(device_dispatch[GetKey(device)].AllocateCommandBuffers(device, &cmdBufAllocateInfo, &cmd));
VkCommandBufferBeginInfo cmdBufInfo = {.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO};
VK_CHECK_RESULT(device_dispatch[GetKey(device)].BeginCommandBuffer(cmd, &cmdBufInfo));
}
~CommandBuffer(){
device_dispatch[GetKey(device)].FreeCommandBuffers(device, commandPool, 1, &cmd);
}
void insertImageMemoryBarrier(
VkImage image,
VkAccessFlags srcAccessMask,
VkAccessFlags dstAccessMask,
VkImageLayout oldImageLayout,
VkImageLayout newImageLayout,
VkPipelineStageFlags srcStageMask,
VkPipelineStageFlags dstStageMask,
VkImageSubresourceRange subresourceRange) {
VkImageMemoryBarrier imageMemoryBarrier{.sType=VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER};
imageMemoryBarrier.srcAccessMask = srcAccessMask;
imageMemoryBarrier.dstAccessMask = dstAccessMask;
imageMemoryBarrier.oldLayout = oldImageLayout;
imageMemoryBarrier.newLayout = newImageLayout;
imageMemoryBarrier.image = image;
imageMemoryBarrier.subresourceRange = subresourceRange;
device_dispatch[GetKey(device)].CmdPipelineBarrier(
cmd,
srcStageMask,
dstStageMask,
0,
0, nullptr,
0, nullptr,
1, &imageMemoryBarrier);
}
void copyImage(VkImage src, VkImage dst, VkExtent2D imgSize){
VkImageCopy imageCopyRegion{};
imageCopyRegion.srcSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
imageCopyRegion.srcSubresource.layerCount = 1;
imageCopyRegion.dstSubresource.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT;
imageCopyRegion.dstSubresource.layerCount = 1;
imageCopyRegion.extent.width = imgSize.width;
imageCopyRegion.extent.height = imgSize.height;
imageCopyRegion.extent.depth = 1;
// Issue the copy command
device_dispatch[GetKey(device)].CmdCopyImage(
cmd,
src, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
dst, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
1,
&imageCopyRegion);
}
void end(){
VK_CHECK_RESULT(device_dispatch[GetKey(device)].EndCommandBuffer(cmd));
}
void submit(VkQueue queue, VkFence fence, std::vector<VkSemaphore> semaphores){
VkSubmitInfo submitInfo = {.sType=VK_STRUCTURE_TYPE_SUBMIT_INFO};
submitInfo.commandBufferCount = 1;
submitInfo.pCommandBuffers = &cmd;
submitInfo.waitSemaphoreCount = semaphores.size();
submitInfo.pWaitSemaphores = semaphores.data();
// Submit to the queue
VK_CHECK_RESULT(device_dispatch[GetKey(queue)].QueueSubmit(queue, 1, &submitInfo, fence));
}
};
VK_LAYER_EXPORT VkResult VKAPI_CALL PrimusVK_CreateDevice(
VkPhysicalDevice physicalDevice,
const VkDeviceCreateInfo* pCreateInfo,
const VkAllocationCallbacks* pAllocator,
VkDevice* pDevice)
{
auto &my_instance_info = instance_info[GetKey(physicalDevice)];
TRACE("in function: creating device");
{
auto info = pCreateInfo;
while(info != nullptr){
TRACE("Extension: " << info->sType);
info = (VkDeviceCreateInfo *) info->pNext;
}
}
VkLayerDeviceCreateInfo *layerCreateInfo = (VkLayerDeviceCreateInfo *)pCreateInfo->pNext;
// step through the chain of pNext until we get to the link info
while(layerCreateInfo && (layerCreateInfo->sType != VK_STRUCTURE_TYPE_LOADER_DEVICE_CREATE_INFO ||
layerCreateInfo->function != VK_LAYER_LINK_INFO))
{
layerCreateInfo = (VkLayerDeviceCreateInfo *)layerCreateInfo->pNext;
}
if(layerCreateInfo == NULL)
{
// No loader instance create info
return VK_ERROR_INITIALIZATION_FAILED;
}
PFN_vkGetInstanceProcAddr gipa = layerCreateInfo->u.pLayerInfo->pfnNextGetInstanceProcAddr;
PFN_vkGetDeviceProcAddr gdpa = layerCreateInfo->u.pLayerInfo->pfnNextGetDeviceProcAddr;
// move chain on for next layer
layerCreateInfo->u.pLayerInfo = layerCreateInfo->u.pLayerInfo->pNext;
// store info for subsequent create call
const auto targetLayerInfo = layerCreateInfo->u.pLayerInfo;
PFN_vkCreateDevice createFunc = (PFN_vkCreateDevice)gipa(VK_NULL_HANDLE, "vkCreateDevice");
VkResult ret = createFunc(physicalDevice, pCreateInfo, pAllocator, pDevice);
{
static bool first = true;
if(!my_instance_info.secondarySpawned){
scoped_lock l(global_lock);
my_instance_info.secondarySpawned = true;
TRACE("spawning secondary device creation: " << &my_instance_info);
// hopefully the first createFunc has only modified this one field
layerCreateInfo->u.pLayerInfo = targetLayerInfo;
TRACE("After reset:" << layerCreateInfo->u.pLayerInfo);
auto display_dev = my_instance_info.display;
my_instance_info.cod = new CreateOtherDevice{display_dev, physicalDevice, *pDevice};
my_instance_info.cod->start();
pthread_yield();
}
}
// store the table by key
{
scoped_lock l(global_lock);
device_instance_info[GetKey(*pDevice)] = &my_instance_info;
device_dispatch[GetKey(*pDevice)] = fetchDispatchTable(gdpa, pDevice);
}
TRACE("CreateDevice done");
return ret;
}
VkLayerDispatchTable fetchDispatchTable(PFN_vkGetDeviceProcAddr gdpa, VkDevice *pDevice){
TRACE("fetching dispatch for " << GetKey(*pDevice));
// fetch our own dispatch table for the functions we need, into the next layer
VkLayerDispatchTable dispatchTable;
#define FETCH(x) dispatchTable.x = (PFN_vk##x)gdpa(*pDevice, "vk" #x);
#define _FETCH(x) dispatchTable.x =(PFN_vk##x) dlsym(libvulkan.get(), "vk" #x);
FETCH(GetDeviceProcAddr);
TRACE("GetDeviceProcAddr is: " << (void*) dispatchTable.GetDeviceProcAddr);
FETCH(DestroyDevice);
FETCH(BeginCommandBuffer);
FETCH(CmdDraw);
FETCH(CmdDrawIndexed);
FETCH(EndCommandBuffer);
FETCH(CreateSwapchainKHR);
TRACE("Create Swapchain KHR is: " << (void*) dispatchTable.CreateSwapchainKHR);
FETCH(DestroySwapchainKHR);
FETCH(GetSwapchainImagesKHR);
FETCH(AcquireNextImageKHR);
FETCH(QueuePresentKHR);
FETCH(CreateImage);
FETCH(GetImageMemoryRequirements);
FETCH(AllocateMemory);
FETCH(BindImageMemory);
FETCH(GetImageSubresourceLayout);
FETCH(FreeMemory);
FETCH(DestroyImage);
FETCH(MapMemory);
FETCH(UnmapMemory);
_FETCH(AllocateCommandBuffers);
FETCH(BeginCommandBuffer);
FETCH(CmdCopyImage);
FETCH(CmdPipelineBarrier);
FETCH(CreateCommandPool);
//FETCH(CreateDevice);
FETCH(EndCommandBuffer);
//FETCH(EnumeratePhysicalDevices);
FETCH(FreeCommandBuffers);
//FETCH(GetPhysicalDeviceMemoryProperties);
//FETCH(GetPhysicalDeviceQueueFamilyProperties);
_FETCH(QueueSubmit);
_FETCH(GetDeviceQueue);
FETCH(CreateFence);
FETCH(WaitForFences);
FETCH(DestroyFence);
FETCH(CreateSemaphore);
FETCH(DestroySemaphore);
#undef FETCH
return dispatchTable;
}
VK_LAYER_EXPORT void VKAPI_CALL PrimusVK_DestroyDevice(VkDevice device, const VkAllocationCallbacks* pAllocator)
{
scoped_lock l(global_lock);
device_dispatch.erase(GetKey(device));
}
VK_LAYER_EXPORT VkResult VKAPI_CALL PrimusVK_CreateSwapchainKHR(VkDevice device, const VkSwapchainCreateInfoKHR* pCreateInfo, const VkAllocationCallbacks* pAllocator, VkSwapchainKHR* pSwapchain) {
auto &my_instance = *device_instance_info[GetKey(device)];
{
if(my_instance.cod == nullptr){
std::cerr << "no thread to join\n";
return VK_ERROR_INITIALIZATION_FAILED;
}
TRACE("joining secondary device creation");
TRACE("When startup hangs here, you have probably hit the initialization deadlock");
my_instance.cod->join();
TRACE("joining succeeded. Luckily initialization deadlock did not occur.");
}
TRACE("Application requested " << pCreateInfo->minImageCount << " images.");
VkDevice render_gpu = device;
VkSwapchainCreateInfoKHR info2 = *pCreateInfo;
info2.minImageCount = std::max(3u, pCreateInfo->minImageCount);
pCreateInfo = &info2;
VkSwapchainKHR old = pCreateInfo->oldSwapchain;
if(old != VK_NULL_HANDLE){
PrimusSwapchain *ch = reinterpret_cast<PrimusSwapchain*>(old);
info2.oldSwapchain = ch->backend;
TRACE("Old Swapchain: " << ch->backend);
}
TRACE("Creating Swapchain for size: " << pCreateInfo->imageExtent.width << "x" << pCreateInfo->imageExtent.height);
TRACE("MinImageCount: " << pCreateInfo->minImageCount);
TRACE("fetching device for: " << GetKey(render_gpu));
VkDevice display_gpu = my_instance.cod->display_gpu;
TRACE("found: " << GetKey(display_gpu));
TRACE("FamilyIndexCount: " << pCreateInfo->queueFamilyIndexCount);
TRACE("Dev: " << GetKey(display_gpu));
TRACE("Swapchainfunc: " << (void*) device_dispatch[GetKey(display_gpu)].CreateSwapchainKHR);
VkSwapchainKHR backend;
VkResult rc = device_dispatch[GetKey(display_gpu)].CreateSwapchainKHR(display_gpu, pCreateInfo, pAllocator, &backend);
TRACE(">> Swapchain create done " << rc << ";" << (void*) backend);
if(rc != VK_SUCCESS){
return rc;
}
PrimusSwapchain *ch = new PrimusSwapchain(render_gpu, display_gpu, backend, pCreateInfo, info2.minImageCount, my_instance.cod);
*pSwapchain = reinterpret_cast<VkSwapchainKHR>(ch);
return rc;
}
VK_LAYER_EXPORT void VKAPI_CALL PrimusVK_DestroySwapchainKHR(VkDevice device, VkSwapchainKHR swapchain, const VkAllocationCallbacks* pAllocator) {
if(swapchain == VK_NULL_HANDLE) { return;}
PrimusSwapchain *ch = reinterpret_cast<PrimusSwapchain*>(swapchain);
TRACE(">> Destroy swapchain: " << (void*) ch->backend);
ch->stop();
device_dispatch[GetKey(ch->display_device)].DestroySwapchainKHR(ch->display_device, ch->backend, pAllocator);
delete ch;
}
VK_LAYER_EXPORT VkResult VKAPI_CALL PrimusVK_GetSwapchainImagesKHR(VkDevice device, VkSwapchainKHR swapchain, uint32_t* pSwapchainImageCount, VkImage* pSwapchainImages) {
PrimusSwapchain *ch = reinterpret_cast<PrimusSwapchain*>(swapchain);
*pSwapchainImageCount = ch->render_images.size();
VkResult res = VK_SUCCESS;
if(pSwapchainImages != nullptr) {
TRACE("Get Swapchain Images buffer: " << pSwapchainImages);
res = VK_SUCCESS; //device_dispatch[GetKey(device)].GetSwapchainImagesKHR(device, ch->backend, pSwapchainImageCount, pSwapchainImages);
for(size_t i = 0; i < *pSwapchainImageCount; i++){
pSwapchainImages[i] = ch->render_images[i]->img;
}
TRACE("Count: " << *pSwapchainImageCount);
}
return res;
}
const auto primus_start = std::chrono::steady_clock::now();
VK_LAYER_EXPORT VkResult VKAPI_CALL PrimusVK_AcquireNextImageKHR(VkDevice device, VkSwapchainKHR swapchain, uint64_t timeout, VkSemaphore semaphore, VkFence fence, uint32_t* pImageIndex) {
TRACE_PROFILING_EVENT(-1, "Acquire starting");
PrimusSwapchain *ch = reinterpret_cast<PrimusSwapchain*>(swapchain);
VkResult res;
{
Fence myfence{ch->display_device};
res = device_dispatch[GetKey(ch->display_device)].AcquireNextImageKHR(ch->display_device, ch->backend, timeout, VK_NULL_HANDLE, myfence.fence, pImageIndex);
TRACE_PROFILING_EVENT(*pImageIndex, "got image");
myfence.await();
}
VkSubmitInfo qsi{};
qsi.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO;
qsi.signalSemaphoreCount = 1;
qsi.pSignalSemaphores = &semaphore;
device_dispatch[GetKey(ch->render_queue)].QueueSubmit(ch->render_queue, 1, &qsi, fence);
TRACE_PROFILING_EVENT(*pImageIndex, "Acquire done");
return res;
}
void PrimusSwapchain::initImages(){
VkMemoryPropertyFlags host_mem = VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT;
VkMemoryPropertyFlags local_mem = VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
ssize_t render_host_mem = -1;
ssize_t render_local_mem = -1;
ssize_t display_host_mem = -1;
for(size_t j=0; j < cod->render_mem.memoryTypeCount; j++){
if ( render_host_mem == -1 && ( cod->render_mem.memoryTypes[j].propertyFlags & host_mem ) == host_mem ) {
render_host_mem = j;
}
if ( render_local_mem == -1 && ( cod->render_mem.memoryTypes[j].propertyFlags & local_mem ) == local_mem ) {
render_local_mem = j;
}
}
for(size_t j=0; j < cod->display_mem.memoryTypeCount; j++){
if ( display_host_mem == -1 && ( cod->display_mem.memoryTypes[j].propertyFlags & host_mem ) == host_mem ) {
display_host_mem = j;
}
}
TRACE("Selected render mem: " << render_host_mem << ";" << render_local_mem << " display: " << display_host_mem);
size_t i = 0;
for( auto &renderImage: render_images){
renderImage = std::make_shared<FramebufferImage>(device, imgSize,
VK_IMAGE_TILING_OPTIMAL,VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT |/**/ VK_IMAGE_USAGE_TRANSFER_SRC_BIT, render_local_mem);
auto &renderCopyImage = render_copy_images[i];
renderCopyImage = std::make_shared<FramebufferImage>(device, imgSize,
VK_IMAGE_TILING_LINEAR, VK_IMAGE_USAGE_TRANSFER_DST_BIT, render_host_mem);
auto &displaySrcImage = display_src_images[i++];
displaySrcImage = std::make_shared<FramebufferImage>(display_device, imgSize,
VK_IMAGE_TILING_LINEAR,VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT |/**/ VK_IMAGE_USAGE_TRANSFER_SRC_BIT, display_host_mem);
renderCopyImage->map();
displaySrcImage->map();
CommandBuffer cmd{display_device};
cmd.insertImageMemoryBarrier(
displaySrcImage->img,
0,
VK_ACCESS_MEMORY_WRITE_BIT,
VK_IMAGE_LAYOUT_UNDEFINED,
VK_IMAGE_LAYOUT_GENERAL,
VK_PIPELINE_STAGE_TRANSFER_BIT,
VK_PIPELINE_STAGE_TRANSFER_BIT,
VkImageSubresourceRange{ VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 });
cmd.end();
Fence f{display_device};
cmd.submit(display_queue, f.fence, {});
f.await();
}
}
void PrimusSwapchain::createCommandBuffers(){
for(uint32_t index = 0; index < render_copy_commands.size(); index++){
auto cpyImage = render_copy_images[index];
auto srcImage = render_images[index]->img;
render_copy_commands[index] = std::make_shared<CommandBuffer>(device);
CommandBuffer &cmd = *render_copy_commands[index];
cmd.insertImageMemoryBarrier(
cpyImage->img,
0, VK_ACCESS_TRANSFER_WRITE_BIT,
VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT,
VkImageSubresourceRange{ VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 });
cmd.insertImageMemoryBarrier(
srcImage,
VK_ACCESS_MEMORY_READ_BIT, VK_ACCESS_TRANSFER_READ_BIT,
VK_IMAGE_LAYOUT_PRESENT_SRC_KHR, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT,
VkImageSubresourceRange{ VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 });
cmd.copyImage(srcImage, cpyImage->img, imgSize);
cmd.insertImageMemoryBarrier(
cpyImage->img,
VK_ACCESS_TRANSFER_WRITE_BIT, VK_ACCESS_MEMORY_READ_BIT,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, VK_IMAGE_LAYOUT_GENERAL,
VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT,
VkImageSubresourceRange{ VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 });
cmd.insertImageMemoryBarrier(
srcImage,
VK_ACCESS_TRANSFER_READ_BIT, VK_ACCESS_MEMORY_READ_BIT,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT,
VkImageSubresourceRange{ VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 });
cmd.end();
}
for(uint32_t index = 0; index < display_commands.size(); index++){
display_commands[index] = std::make_shared<CommandBuffer>(display_device);
CommandBuffer &cmd = *display_commands[index];
cmd.insertImageMemoryBarrier(
display_src_images[index]->img,
VK_ACCESS_MEMORY_WRITE_BIT, VK_ACCESS_TRANSFER_READ_BIT,
VK_IMAGE_LAYOUT_GENERAL, VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL,
VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT,
VkImageSubresourceRange{ VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 });
cmd.insertImageMemoryBarrier(
display_images[index],
VK_ACCESS_MEMORY_READ_BIT, VK_ACCESS_TRANSFER_WRITE_BIT,
VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL,
VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT,
VkImageSubresourceRange{ VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 });
cmd.copyImage(display_src_images[index]->img, display_images[index], imgSize);
cmd.insertImageMemoryBarrier(
display_src_images[index]->img,
VK_ACCESS_TRANSFER_READ_BIT, VK_ACCESS_MEMORY_WRITE_BIT,
VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL, VK_IMAGE_LAYOUT_GENERAL,
VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT,
VkImageSubresourceRange{ VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 });
cmd.insertImageMemoryBarrier(
display_images[index],
VK_ACCESS_TRANSFER_READ_BIT, VK_ACCESS_MEMORY_READ_BIT,
VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_PRESENT_SRC_KHR,
VK_PIPELINE_STAGE_TRANSFER_BIT, VK_PIPELINE_STAGE_TRANSFER_BIT,
VkImageSubresourceRange{ VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 });
cmd.end();
}
}
void PrimusSwapchain::storeImage(uint32_t index, VkDevice device, VkExtent2D imgSize, VkQueue queue, VkFormat colorFormat, std::vector<VkSemaphore> wait_on, Fence ¬ify){
render_copy_commands[index]->submit(queue, notify.fence, wait_on);
}
void PrimusSwapchain::copyImageData(uint32_t index, std::vector<VkSemaphore> sems){
{
auto rendered = render_copy_images[index]->getMapped();
auto display = display_src_images[index]->getMapped();
auto rendered_layout = render_copy_images[index]->getLayout();
auto display_layout = display_src_images[index]->getLayout();
auto rendered_start = rendered->data + rendered_layout.offset;
auto display_start = display->data + display_layout.offset;
if(rendered_layout.size/rendered_layout.rowPitch != display_layout.size/display_layout.rowPitch){
TRACE("Layouts don't match at all");
throw std::runtime_error("Layouts don't match at all");
}
TRACE_PROFILING_EVENT(index, "memcpy start");
if(rendered_layout.rowPitch == display_layout.rowPitch){
std::memcpy(display_start, rendered_start, rendered_layout.size);
}else{
VkDeviceSize display_offset = 0;
VkDeviceSize minRowPitch = rendered_layout.rowPitch;
if(display_layout.rowPitch < minRowPitch){
minRowPitch = display_layout.rowPitch;
}
for(VkDeviceSize offset = 0; offset < rendered_layout.size; offset += rendered_layout.rowPitch){
std::memcpy(display_start + display_offset, rendered_start + offset, minRowPitch);
display_offset += display_layout.rowPitch;
}
}
TRACE_PROFILING_EVENT(index, "memcpy done");
}
{
std::unique_lock<std::mutex> lock(queueMutex);