91 lines
3.3 KiB
CMake
91 lines
3.3 KiB
CMake
cmake_minimum_required(VERSION 3.20)
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# ---------------------------------------------------------------------------
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# wpywdlss native bridge
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#
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# A small C++ shim that lets the Java/Fabric side talk to NVIDIA Streamline/NGX
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# over Vulkan, sharing textures with Minecraft's OpenGL context via Win32
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# external memory + semaphores.
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#
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# Phase 0 scope: bring up a Vulkan device and PROVE the interop capabilities we
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# need actually exist on this machine. No NVIDIA headers required yet -- the
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# Streamline/NGX integration is added in phase 2 (see STREAMLINE_SDK_DIR below).
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# ---------------------------------------------------------------------------
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project(wpywdlss_bridge LANGUAGES CXX)
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set(CMAKE_CXX_STANDARD 17)
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set(CMAKE_CXX_STANDARD_REQUIRED ON)
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if(NOT CMAKE_BUILD_TYPE)
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set(CMAKE_BUILD_TYPE Release)
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endif()
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# --- JDK for jni.h ---------------------------------------------------------
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# Prefer an explicit -DJAVA_HOME=... otherwise fall back to the environment.
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if(NOT DEFINED JAVA_HOME)
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if(DEFINED ENV{JAVA_HOME})
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set(JAVA_HOME "$ENV{JAVA_HOME}")
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else()
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message(FATAL_ERROR "JAVA_HOME is not set and -DJAVA_HOME= was not given")
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endif()
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endif()
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message(STATUS "JAVA_HOME = ${JAVA_HOME}")
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# --- Vulkan headers + import library --------------------------------------
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# Both are vendored/generated by tools/make_vulkan_lib.cmd; no LunarG SDK needed.
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set(VULKAN_INCLUDE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/third_party/vulkan/include")
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set(VULKAN_LIB_DIR "${CMAKE_CURRENT_SOURCE_DIR}/third_party/vulkan/lib")
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if(NOT EXISTS "${VULKAN_INCLUDE_DIR}/vulkan/vulkan.h")
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message(FATAL_ERROR "Vulkan headers missing at ${VULKAN_INCLUDE_DIR}/vulkan")
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endif()
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if(NOT EXISTS "${VULKAN_LIB_DIR}/vulkan-1.lib")
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message(FATAL_ERROR "vulkan-1.lib missing. Run native/tools/make_vulkan_lib.cmd first.")
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endif()
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# --- optional Streamline / NGX (phase 2) ----------------------------------
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# Point -DSTREAMLINE_SDK_DIR=D:/Download/streamline-sdk-v2.14.1 to enable the
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# DLSS code paths. Left optional so phase 0 builds without it.
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set(STREAMLINE_SDK_DIR "" CACHE PATH "Path to the extracted NVIDIA Streamline SDK")
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add_library(wpywdlss_bridge SHARED
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src/dlss_bridge.cpp
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src/gl_probe.cpp
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)
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target_include_directories(wpywdlss_bridge PRIVATE
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"${VULKAN_INCLUDE_DIR}"
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"${JAVA_HOME}/include"
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"${JAVA_HOME}/include/win32"
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)
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target_link_directories(wpywdlss_bridge PRIVATE "${VULKAN_LIB_DIR}")
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# vulkan-1 for the compute/interop device, opengl32 for the GL side of the bridge.
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target_link_libraries(wpywdlss_bridge PRIVATE vulkan-1 opengl32)
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if(STREAMLINE_SDK_DIR)
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message(STATUS "Streamline SDK enabled: ${STREAMLINE_SDK_DIR}")
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target_include_directories(wpywdlss_bridge PRIVATE "${STREAMLINE_SDK_DIR}/include")
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target_compile_definitions(wpywdlss_bridge PRIVATE WPYWDLSS_HAVE_STREAMLINE=1)
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else()
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message(STATUS "Streamline SDK not configured -- phase 0 (Vulkan probe) only")
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endif()
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target_compile_definitions(wpywdlss_bridge PRIVATE
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VK_USE_PLATFORM_WIN32_KHR
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WIN32_LEAN_AND_MEAN
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NOMINMAX
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)
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# The DLL is loaded from a jar at runtime, so keep it self-contained.
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set_target_properties(wpywdlss_bridge PROPERTIES
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PREFIX ""
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OUTPUT_NAME "wpywdlss_bridge"
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)
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if(MSVC)
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target_compile_options(wpywdlss_bridge PRIVATE /W4 /permissive- /utf-8)
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target_link_options(wpywdlss_bridge PRIVATE /INCREMENTAL:NO)
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endif()
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