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Use yuv and fix FR to use batch 4

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This commit is contained in:
Tuan Nghia Nguyen
2026-04-22 16:01:44 +10:00
parent 24d6d2e0a5
commit fc47a42c6a
6 changed files with 65 additions and 22 deletions
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32
CMakeLists.txt
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@@ -107,19 +107,27 @@ endif()
# Default: OFF. Enable with `-DANSCORE_USE_LIBYUV=ON` only after switching
# the project's compiler to clang-cl / clang / gcc.
option(ANSCORE_USE_LIBYUV "Use libyuv for YUV→BGR conversion (only effective on Clang/GCC, NOT MSVC)" OFF)
if(ANSCORE_USE_LIBYUV AND EXISTS "${CMAKE_SOURCE_DIR}/3rdparty/libyuv/CMakeLists.txt")
if(MSVC AND NOT CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
message(WARNING "ANSCORE_USE_LIBYUV=ON but compiler is MSVC cl.exe — "
"libyuv's SIMD paths (row_gcc.cc) won't compile. "
"Expect ~10× slowdown vs cv::cvtColor. "
"Use clang-cl (LLVM) instead, or keep ANSCORE_USE_LIBYUV=OFF.")
endif()
# Prevent libyuv from finding a system libjpeg and enabling HAVE_JPEG
# (we don't use libyuv's MJPEG codepaths; avoids an unnecessary runtime dep).
set(CMAKE_DISABLE_FIND_PACKAGE_JPEG TRUE)
add_subdirectory(3rdparty/libyuv EXCLUDE_FROM_ALL)
# Prebuilt libyuv path — built separately with clang-cl so its SIMD rows compile,
# then linked into the MSVC main build (clang-cl output is MSVC-ABI-compatible).
# Override with -DANSCORE_LIBYUV_LIB=<path> if the .lib lives elsewhere.
set(ANSCORE_LIBYUV_LIB "${CMAKE_SOURCE_DIR}/3rdparty/libyuv/build-clangcl/Release/yuv.lib"
CACHE FILEPATH "Path to the prebuilt libyuv static library (built with clang-cl)")
if(ANSCORE_USE_LIBYUV AND EXISTS "${ANSCORE_LIBYUV_LIB}")
add_library(yuv STATIC IMPORTED GLOBAL)
set_target_properties(yuv PROPERTIES
IMPORTED_LOCATION "${ANSCORE_LIBYUV_LIB}"
INTERFACE_INCLUDE_DIRECTORIES "${CMAKE_SOURCE_DIR}/3rdparty/libyuv/include")
set(ANSCORE_HAS_LIBYUV ON)
message(STATUS "libyuv: ENABLED (vendored from 3rdparty/libyuv, static target 'yuv')")
message(STATUS "libyuv: ENABLED (prebuilt static lib at ${ANSCORE_LIBYUV_LIB})")
elseif(ANSCORE_USE_LIBYUV)
set(ANSCORE_HAS_LIBYUV OFF)
message(WARNING "ANSCORE_USE_LIBYUV=ON but prebuilt libyuv not found at "
"${ANSCORE_LIBYUV_LIB}. Build it first with clang-cl:\n"
" cmake -S 3rdparty/libyuv -B 3rdparty/libyuv/build-clangcl "
"-G \"Visual Studio 17 2022\" -T ClangCL -A x64\n"
" cmake --build 3rdparty/libyuv/build-clangcl --config Release\n"
"Falling back to cv::cvtColor path.")
else()
set(ANSCORE_HAS_LIBYUV OFF)
message(STATUS "libyuv: DISABLED — using cv::cvtColor+IPP path (fast on MSVC)")