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feat: mangohud integration

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PancakeTAS 2025-12-25 05:55:54 +01:00
parent 1975f2f64f
commit 44dcc2b7d0
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3 changed files with 46 additions and 0 deletions
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4
CMakeLists.txt
View file

@ -9,6 +9,7 @@ option(LSFGVK_BUILD_CLI "Build the command line interface" ON)
option(LSFGVK_INSTALL_DEVELOP "Install development libraries and headers" OFF)
option(LSFGVK_INSTALL_XDG_FILES "Install the application icon and desktop files" OFF)
set(LSFGVK_LAYER_LIBRARY_PATH liblsfg-vk-layer.so CACHE STRING "Change where Vulkan searches for the layer library")
option(LSFGVK_LAYER_MANGOHUD "Enable MangoHud support in the Vulkan layer" ON)
option(LSFGVK_TESTING_RENDERDOC "Enable RenderDoc integration for testing purposes" OFF)
# === READ HERE FOR BUILD OPTIONS ===
@ -44,6 +45,9 @@ if(CMAKE_BUILD_TYPE STREQUAL "Debug")
endif()
endif()
if(LSFGVK_LAYER_MANGOHUD)
add_compile_definitions(LSFGVK_LAYER_MANGOHUD)
endif()
if(LSFGVK_TESTING_RENDERDOC)
add_compile_definitions(LSFGVK_TESTING_RENDERDOC)
endif()

34
lsfg-vk-layer/src/swapchain.cpp
View file

@ -21,10 +21,15 @@
#include <vulkan/vulkan_core.h>
#ifdef LSFGVK_LAYER_MANGOHUD
#include <dlfcn.h>
#endif
using namespace lsfgvk;
using namespace lsfgvk::layer;
namespace {
/// helper to create an image memory barrier
VkImageMemoryBarrier barrierHelper(VkImage handle,
VkAccessFlags srcAccessMask,
VkAccessFlags dstAccessMask,
@ -48,6 +53,21 @@ namespace {
}
};
}
#ifdef LSFGVK_LAYER_MANGOHUD
/// load MangoHud integration
PFN_MangoHud_notify loadMangoHudIntegration() {
void* module = dlopen("libMangoHud.so", RTLD_NOW | RTLD_NOLOAD);
if (!module)
return nullptr;
auto func = reinterpret_cast<PFN_MangoHud_notify>(
dlsym(module, "notify_extra_frame"));
if (!func)
return nullptr;
return func;
}
#endif
}
void layer::context_ModifySwapchainCreateInfo(const ls::GameConf& profile, uint32_t maxImages,
@ -124,6 +144,10 @@ Swapchain::Swapchain(const vk::Vulkan& vk, backend::Instance& backend,
vk::Semaphore(vk)
);
}
#ifdef LSFGVK_LAYER_MANGOHUD
this->mangohud_notify = loadMangoHudIntegration();
#endif
}
VkResult Swapchain::present(const vk::Vulkan& vk,
@ -281,6 +305,11 @@ VkResult Swapchain::present(const vk::Vulkan& vk,
if (res != VK_SUCCESS && res != VK_SUBOPTIMAL_KHR)
throw ls::vulkan_error(res, "vkQueuePresentKHR() failed");
#ifdef LSFGVK_LAYER_MANGOHUD
if (this->mangohud_notify)
this->mangohud_notify(this->fidx, swapchain, true);
#endif
this->idx++;
}
@ -298,6 +327,11 @@ VkResult Swapchain::present(const vk::Vulkan& vk,
if (res != VK_SUCCESS && res != VK_SUBOPTIMAL_KHR)
throw ls::vulkan_error(res, "vkQueuePresentKHR() failed");
#ifdef LSFGVK_LAYER_MANGOHUD
if (this->mangohud_notify)
this->mangohud_notify(this->fidx, swapchain, false);
#endif
this->fidx++;
return res;
}

8
lsfg-vk-layer/src/swapchain.hpp
View file

@ -36,6 +36,10 @@ namespace lsfgvk::layer {
void context_ModifySwapchainCreateInfo(const ls::GameConf& profile, uint32_t maxImages,
VkSwapchainCreateInfoKHR& createInfo);
#ifdef LSFGVK_LAYER_MANGOHUD
using PFN_MangoHud_notify = void(*)(uint64_t, VkSwapchainKHR, bool);
#endif
/// swapchain context for a layer instance
class Swapchain {
public:
@ -79,6 +83,10 @@ namespace lsfgvk::layer {
ls::GameConf profile;
SwapchainInfo info;
#ifdef LSFGVK_LAYER_MANGOHUD
PFN_MangoHud_notify mangohud_notify{nullptr};
#endif
};
}