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Integrate AMD FSR2 backend and document SDK bootstrap

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Kelsi 2026-03-08 19:56:52 -07:00
parent a24ff375fb
commit 51a8cf565f
11 changed files with 329 additions and 28 deletions
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41
CMakeLists.txt
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@ -27,18 +27,49 @@ option(WOWEE_ENABLE_AMD_FSR2 "Enable AMD FidelityFX FSR2 backend when SDK is pre
# AMD FidelityFX FSR2 SDK detection (drop-in under extern/FidelityFX-FSR2)
set(WOWEE_AMD_FSR2_DIR ${CMAKE_SOURCE_DIR}/extern/FidelityFX-FSR2)
set(WOWEE_AMD_FSR2_HEADER ${WOWEE_AMD_FSR2_DIR}/src/ffx-fsr2-api/ffx_fsr2.h)
if(WOWEE_ENABLE_AMD_FSR2 AND EXISTS ${WOWEE_AMD_FSR2_HEADER})
set(WOWEE_AMD_FSR2_VK_PERM_HEADER ${WOWEE_AMD_FSR2_DIR}/src/ffx-fsr2-api/vk/shaders/ffx_fsr2_accumulate_pass_permutations.h)
if(WOWEE_ENABLE_AMD_FSR2 AND EXISTS ${WOWEE_AMD_FSR2_HEADER} AND EXISTS ${WOWEE_AMD_FSR2_VK_PERM_HEADER})
message(STATUS "AMD FSR2 SDK detected at ${WOWEE_AMD_FSR2_DIR}")
add_compile_definitions(WOWEE_HAS_AMD_FSR2=1)
include_directories(
add_compile_definitions(FFX_GCC=1)
# AMD FSR2 Vulkan backend sources (official SDK implementation)
set(WOWEE_AMD_FSR2_SOURCES
${WOWEE_AMD_FSR2_DIR}/src/ffx-fsr2-api/ffx_assert.cpp
${WOWEE_AMD_FSR2_DIR}/src/ffx-fsr2-api/ffx_fsr2.cpp
${WOWEE_AMD_FSR2_DIR}/src/ffx-fsr2-api/vk/ffx_fsr2_vk.cpp
${WOWEE_AMD_FSR2_DIR}/src/ffx-fsr2-api/vk/shaders/ffx_fsr2_shaders_vk.cpp
)
add_library(wowee_fsr2_amd_vk STATIC ${WOWEE_AMD_FSR2_SOURCES})
set_target_properties(wowee_fsr2_amd_vk PROPERTIES
CXX_STANDARD 17
CXX_STANDARD_REQUIRED ON
)
target_include_directories(wowee_fsr2_amd_vk PUBLIC
${WOWEE_AMD_FSR2_DIR}/src
${WOWEE_AMD_FSR2_DIR}/src/ffx-fsr2-api
${WOWEE_AMD_FSR2_DIR}/src/ffx-fsr2-api/vk
${WOWEE_AMD_FSR2_DIR}/src/ffx-fsr2-api/vk/shaders
)
set(WOWEE_FFX_COMPAT_HEADER ${CMAKE_SOURCE_DIR}/include/third_party/ffx_fsr2_compat.h)
if(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
target_compile_options(wowee_fsr2_amd_vk PRIVATE
"-include${WOWEE_FFX_COMPAT_HEADER}"
)
elseif(MSVC)
target_compile_options(wowee_fsr2_amd_vk PRIVATE
"/FI${WOWEE_FFX_COMPAT_HEADER}"
)
endif()
target_link_libraries(wowee_fsr2_amd_vk PUBLIC Vulkan::Vulkan)
else()
add_compile_definitions(WOWEE_HAS_AMD_FSR2=0)
if(WOWEE_ENABLE_AMD_FSR2)
message(WARNING "AMD FSR2 SDK not found at ${WOWEE_AMD_FSR2_DIR}; using internal fallback implementation.")
if(NOT EXISTS ${WOWEE_AMD_FSR2_HEADER})
message(WARNING "AMD FSR2 SDK not found at ${WOWEE_AMD_FSR2_DIR}; using internal fallback implementation.")
elseif(NOT EXISTS ${WOWEE_AMD_FSR2_VK_PERM_HEADER})
message(WARNING "AMD FSR2 SDK found, but generated Vulkan permutation headers are missing (e.g. ${WOWEE_AMD_FSR2_VK_PERM_HEADER}); using internal fallback implementation.")
endif()
endif()
endif()
@ -556,6 +587,10 @@ if(TARGET vk-bootstrap)
target_link_libraries(wowee PRIVATE vk-bootstrap)
endif()
if(TARGET wowee_fsr2_amd_vk)
target_link_libraries(wowee PRIVATE wowee_fsr2_amd_vk)
endif()
# Link Unicorn if available
if(HAVE_UNICORN)
target_link_libraries(wowee PRIVATE ${UNICORN_LIBRARY})