build: switch to GH action for Windows build

.github/workflows/windows.yml

@@ -0,0 +1,91 @@
+name: Windows
+
+on:
+  pull_request:
+  push:
+    branches:
+      - dev
+      - release
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build-windows:
+    runs-on: windows-2022
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.22'
+          cache: true
+      - name: Restore cached OpenCV source
+        uses: actions/cache/restore@v4
+        id: cache-opencv-source
+        with:
+          key: opencv-source-490-windows-v1a
+          path: |
+            ./opencv/opencv-4.9.0
+            ./opencv/opencv_contrib-4.9.0
+      - name: Download OpenCV source
+        if: steps.cache-opencv-source.outputs.cache-hit != 'true'
+        shell: bash
+        run: |
+            mkdir -p ./opencv
+            curl -Lo ./opencv/opencv-4.9.0.zip https://github.com/opencv/opencv/archive/4.9.0.zip
+            curl -Lo ./opencv/opencv_contrib-4.9.0.zip https://github.com/opencv/opencv_contrib/archive/4.9.0.zip
+      - name: Extract OpenCV source
+        if: steps.cache-opencv-source.outputs.cache-hit != 'true'
+        shell: bash
+        run: |
+            cd ./opencv
+            mkdir -p opencv-4.9.0
+            mkdir -p opencv_contrib-4.9.0
+            7z x opencv-4.9.0.zip
+            7z x opencv_contrib-4.9.0.zip
+      - name: Save cached OpenCV source
+        uses: actions/cache/save@v4
+        if: steps.cache-opencv-source.outputs.cache-hit != 'true'
+        with:
+          key: ${{ steps.cache-opencv-source.outputs.cache-primary-key }}
+          path: |
+            ./opencv/opencv-4.9.0
+            ./opencv/opencv_contrib-4.9.0
+      - name: Restore cached OpenCV build
+        uses: actions/cache/restore@v4
+        id: cache-opencv-build
+        with:
+          key: opencv-build-490-windows-v1c
+          path: |
+            ./opencv/build
+      - name: Build OpenCV
+        if: steps.cache-opencv-build.outputs.cache-hit != 'true'
+        run: |
+            mkdir -p ./opencv/build            
+            cd ./opencv/build
+            cmake -G "MinGW Makefiles" -DENABLE_CXX11=ON -DOPENCV_EXTRA_MODULES_PATH="../opencv_contrib-4.9.0/modules" -DBUILD_SHARED_LIBS=ON -DWITH_IPP=OFF -DWITH_MSMF=OFF -DBUILD_EXAMPLES=OFF -DBUILD_TESTS=OFF -DBUILD_PERF_TESTS=ON -DBUILD_opencv_java=OFF -DBUILD_opencv_python=OFF -DBUILD_opencv_python2=OFF -DBUILD_opencv_python3=OFF -DBUILD_DOCS=OFF -DENABLE_PRECOMPILED_HEADERS=OFF -DBUILD_opencv_saliency=OFF -DBUILD_opencv_wechat_qrcode=ON -DCPU_DISPATCH= -DOPENCV_GENERATE_PKGCONFIG=ON -DWITH_OPENCL_D3D11_NV=OFF -DOPENCV_ALLOCATOR_STATS_COUNTER_TYPE=int64_t -Wno-dev ../opencv-4.9.0
+            cmake --build . --target install
+      - name: Save cached OpenCV build
+        uses: actions/cache/save@v4
+        if: steps.cache-opencv-build.outputs.cache-hit != 'true'
+        with:
+          key: ${{ steps.cache-opencv-build.outputs.cache-primary-key }}
+          path: |
+            ./opencv/build
+      - name: Set GoCV env
+        run: |
+            go env
+            echo "CGO_CXXFLAGS=--std=c++11" >> $env:GITHUB_ENV
+            echo "CGO_CPPFLAGS=-I${env:GITHUB_WORKSPACE}\opencv\build\install\include" >> $env:GITHUB_ENV
+            echo "CGO_LDFLAGS=-L${env:GITHUB_WORKSPACE}\opencv\build\install\x64\mingw\lib -lopencv_core490 -lopencv_face490 -lopencv_videoio490 -lopencv_imgproc490 -lopencv_highgui490 -lopencv_imgcodecs490 -lopencv_objdetect490 -lopencv_features2d490 -lopencv_video490 -lopencv_dnn490 -lopencv_xfeatures2d490 -lopencv_plot490 -lopencv_tracking490 -lopencv_img_hash490 -lopencv_calib3d490 -lopencv_bgsegm490 -lopencv_photo490 -lopencv_aruco490 -lopencv_wechat_qrcode490 -lopencv_ximgproc490 -lopencv_xphoto490" >> $env:GITHUB_ENV
+            echo "${env:GITHUB_WORKSPACE}/opencv/build/install/x64/mingw/bin" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append
+      - name: Test GoCV
+        run: |
+            go env
+            go test -v -tags="matprofile,customenv" .
+      - name: Test GoCV Contrib
+        run: |
+            go test -v -tags="matprofile,customenv" ./contrib

Makefile

@@ -10,8 +10,8 @@ OPENCV_VERSION?=4.9.0
 # Go version to use when building Docker image
 GOVERSION?=1.22.0
 
-# Temporary directory to put files into.
-TMP_DIR?=/tmp/
+# Build directory to put files into.
+BUILD_DIR?=/tmp
 
 # Build shared or static library
 BUILD_SHARED_LIBS?=ON
@@ -76,23 +76,38 @@ deps_jetson:
 	sudo apt-get -y install $(JETSON)
 
 # Download OpenCV source tarballs.
-download:
-	rm -rf $(TMP_DIR)opencv
-	mkdir $(TMP_DIR)opencv
-	cd $(TMP_DIR)opencv
+download-clean:
+	rm -rf $(BUILD_DIR)/opencv
+	mkdir -p $(BUILD_DIR)
+	mkdir -p $(BUILD_DIR)/opencv
+
+# Download OpenCV source tarballs.
+download-opencv-source:
+	cd $(BUILD_DIR)/opencv
 	curl -Lo opencv.zip https://github.com/opencv/opencv/archive/refs/tags/$(OPENCV_VERSION).zip
-	unzip -q opencv.zip
 	curl -Lo opencv_contrib.zip https://github.com/opencv/opencv_contrib/archive/refs/tags/$(OPENCV_VERSION).zip
+
+# Download OpenCV source tarballs.
+download-extract:
+	cd $(BUILD_DIR)/opencv
+	unzip -q opencv.zip
 	unzip -q opencv_contrib.zip
-	rm opencv.zip opencv_contrib.zip
 	cd -
 
+download: download-clean download-opencv-source download-extract
+
 # Download openvino source tarballs.
 download_openvino:
 	sudo rm -rf /usr/local/dldt/
 	sudo rm -rf /usr/local/openvino/
 	sudo git clone https://github.com/openvinotoolkit/openvino -b 2019_R3.1 /usr/local/openvino/
 
+build-clean:
+	cd $(BUILD_DIR)/opencv/opencv-$(OPENCV_VERSION)
+	mkdir -p build
+	cd build
+	rm -rf *
+
 # Build openvino.
 build_openvino_package:
 	cd /usr/local/openvino/inference-engine
@@ -111,53 +126,45 @@ build_openvino_package:
 	cd -
 
 # Build OpenCV.
-build:
-	cd $(TMP_DIR)opencv/opencv-$(OPENCV_VERSION)
-	mkdir build
-	cd build
-	rm -rf *
-	cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} -D OPENCV_EXTRA_MODULES_PATH=$(TMP_DIR)opencv/opencv_contrib-$(OPENCV_VERSION)/modules -D BUILD_DOCS=OFF -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=ON -D BUILD_opencv_java=NO -D BUILD_opencv_python=NO -D BUILD_opencv_python2=NO -D BUILD_opencv_python3=NO -D WITH_JASPER=OFF -D WITH_TBB=ON -DOPENCV_GENERATE_PKGCONFIG=ON ..
+build: build-clean build_normal_task
+build_normal_task:
+	cd $(BUILD_DIR)/opencv/opencv-$(OPENCV_VERSION)/build
+	cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} -D OPENCV_EXTRA_MODULES_PATH=$(BUILD_DIR)/opencv/opencv_contrib-$(OPENCV_VERSION)/modules -D BUILD_DOCS=OFF -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=ON -D BUILD_opencv_java=NO -D BUILD_opencv_python=NO -D BUILD_opencv_python2=NO -D BUILD_opencv_python3=NO -D WITH_JASPER=OFF -D WITH_TBB=ON -DOPENCV_GENERATE_PKGCONFIG=ON ..
 	$(MAKE) -j $(shell nproc --all --ignore 1)
 	$(MAKE) preinstall
 	cd -
 
 # Build OpenCV on Raspbian with ARM hardware optimizations.
-build_raspi:
-	cd $(TMP_DIR)opencv/opencv-$(OPENCV_VERSION)
-	mkdir build
-	cd build
-	rm -rf *
+build_raspi: build-clean build_raspi_task
+build_raspi_task:
+	cd $(BUILD_DIR)/opencv/opencv-$(OPENCV_VERSION)/build
 ifneq ($(shell uname -m | grep "aarch64"),)
-	cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} -D OPENCV_EXTRA_MODULES_PATH=$(TMP_DIR)opencv/opencv_contrib-$(OPENCV_VERSION)/modules -D BUILD_DOCS=OFF -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=ON -D BUILD_opencv_java=OFF -D BUILD_opencv_python=NO -D BUILD_opencv_python2=NO -D BUILD_opencv_python3=NO -D ENABLE_NEON=ON -D WITH_JASPER=OFF -D WITH_TBB=ON -D OPENCV_GENERATE_PKGCONFIG=ON ..
+	cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} -D OPENCV_EXTRA_MODULES_PATH=$(BUILD_DIR)/opencv/opencv_contrib-$(OPENCV_VERSION)/modules -D BUILD_DOCS=OFF -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=ON -D BUILD_opencv_java=OFF -D BUILD_opencv_python=NO -D BUILD_opencv_python2=NO -D BUILD_opencv_python3=NO -D ENABLE_NEON=ON -D WITH_JASPER=OFF -D WITH_TBB=ON -D OPENCV_GENERATE_PKGCONFIG=ON ..
 else
-	cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} -D OPENCV_EXTRA_MODULES_PATH=$(TMP_DIR)opencv/opencv_contrib-$(OPENCV_VERSION)/modules -D BUILD_DOCS=OFF -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=ON -D BUILD_opencv_java=OFF -D BUILD_opencv_python=NO -D BUILD_opencv_python2=NO -D BUILD_opencv_python3=NO -D ENABLE_NEON=ON -D ENABLE_VFPV3=ON -D WITH_JASPER=OFF -D OPENCV_GENERATE_PKGCONFIG=ON ..
+	cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} -D OPENCV_EXTRA_MODULES_PATH=$(BUILD_DIR)/opencv/opencv_contrib-$(OPENCV_VERSION)/modules -D BUILD_DOCS=OFF -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=ON -D BUILD_opencv_java=OFF -D BUILD_opencv_python=NO -D BUILD_opencv_python2=NO -D BUILD_opencv_python3=NO -D ENABLE_NEON=ON -D ENABLE_VFPV3=ON -D WITH_JASPER=OFF -D OPENCV_GENERATE_PKGCONFIG=ON ..
 endif
 	$(MAKE) -j $(shell nproc --all --ignore 1)
 	$(MAKE) preinstall
 	cd -
 
 # Build OpenCV on Raspberry pi zero which has ARMv6.
-build_raspi_zero:
-	cd $(TMP_DIR)opencv/opencv-$(OPENCV_VERSION)
-	mkdir build
-	cd build
-	rm -rf *
-	cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} -D OPENCV_EXTRA_MODULES_PATH=$(TMP_DIR)opencv/opencv_contrib-$(OPENCV_VERSION)/modules -D BUILD_DOCS=OFF -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=ON -D BUILD_opencv_java=OFF -D BUILD_opencv_python=NO -D BUILD_opencv_python2=NO -D BUILD_opencv_python3=NO -D ENABLE_VFPV2=ON -D WITH_JASPER=OFF -D OPENCV_GENERATE_PKGCONFIG=ON ..
+build_raspi_zero: build-clean build_raspi_zero_task
+build_raspi_zero_task:
+	cd $(BUILD_DIR)/opencv/opencv-$(OPENCV_VERSION)/build
+	cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} -D OPENCV_EXTRA_MODULES_PATH=$(BUILD_DIR)/opencv/opencv_contrib-$(OPENCV_VERSION)/modules -D BUILD_DOCS=OFF -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=ON -D BUILD_opencv_java=OFF -D BUILD_opencv_python=NO -D BUILD_opencv_python2=NO -D BUILD_opencv_python3=NO -D ENABLE_VFPV2=ON -D WITH_JASPER=OFF -D OPENCV_GENERATE_PKGCONFIG=ON ..
 	$(MAKE) -j $(shell nproc --all --ignore 1)
 	$(MAKE) preinstall
 	cd -
 
 # Build OpenCV for NVidia Jetson with CUDA.
-build_jetson:
-	cd $(TMP_DIR)opencv/opencv-$(OPENCV_VERSION)
-	mkdir build
-	cd build
-	rm -rf *
+build_jetson: build-clean build_jetson_task
+build_jetson_task:
+	cd $(BUILD_DIR)/opencv/opencv-$(OPENCV_VERSION)/build
 	cmake -D CMAKE_BUILD_TYPE=RELEASE \
 		-D CMAKE_INSTALL_PREFIX=/usr/local \
 		-D EIGEN_INCLUDE_PATH=/usr/include/eigen3 \
 		-D BUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} \
-		-D OPENCV_EXTRA_MODULES_PATH=$(TMP_DIR)opencv/opencv_contrib-$(OPENCV_VERSION)/modules \
+		-D OPENCV_EXTRA_MODULES_PATH=$(BUILD_DIR)/opencv/opencv_contrib-$(OPENCV_VERSION)/modules \
 		-D BUILD_DOCS=OFF -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=ON -D BUILD_opencv_java=OFF -D BUILD_opencv_python=NO -D BUILD_opencv_python2=NO -D BUILD_opencv_python3=NO \
 		-D WITH_OPENCL=OFF \
 		-D WITH_CUDA=ON \
@@ -187,64 +194,54 @@ build_jetson:
 	cd -
 
 # Build OpenCV with non-free contrib modules.
-build_nonfree:
-	cd $(TMP_DIR)opencv/opencv-$(OPENCV_VERSION)
-	mkdir build
-	cd build
-	rm -rf *
-	cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} -D OPENCV_EXTRA_MODULES_PATH=$(TMP_DIR)opencv/opencv_contrib-$(OPENCV_VERSION)/modules -D BUILD_DOCS=OFF -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=ON -D BUILD_opencv_java=NO -D BUILD_opencv_python=NO -D BUILD_opencv_python2=NO -D BUILD_opencv_python3=NO -D WITH_JASPER=OFF -D WITH_TBB=ON -DOPENCV_GENERATE_PKGCONFIG=ON -DOPENCV_ENABLE_NONFREE=ON ..
+build_nonfree: build-clean build_nonfree_task
+build_nonfree_task:
+	cd $(BUILD_DIR)/opencv/opencv-$(OPENCV_VERSION)/build
+	cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} -D OPENCV_EXTRA_MODULES_PATH=$(BUILD_DIR)/opencv/opencv_contrib-$(OPENCV_VERSION)/modules -D BUILD_DOCS=OFF -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=ON -D BUILD_opencv_java=NO -D BUILD_opencv_python=NO -D BUILD_opencv_python2=NO -D BUILD_opencv_python3=NO -D WITH_JASPER=OFF -D WITH_TBB=ON -DOPENCV_GENERATE_PKGCONFIG=ON -DOPENCV_ENABLE_NONFREE=ON ..
 	$(MAKE) -j $(shell nproc --all --ignore 1)
 	$(MAKE) preinstall
 	cd -
 
 # Build OpenCV with openvino.
-build_openvino:
-	cd $(TMP_DIR)opencv/opencv-$(OPENCV_VERSION)
-	mkdir build
-	cd build
-	rm -rf *
-	cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} -D ENABLE_CXX11=ON -D OPENCV_EXTRA_MODULES_PATH=$(TMP_DIR)opencv/opencv_contrib-$(OPENCV_VERSION)/modules -D WITH_INF_ENGINE=ON -D InferenceEngine_DIR=/usr/local/dldt/inference-engine/build -D BUILD_DOCS=OFF -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=ON -D BUILD_opencv_java=NO -D BUILD_opencv_python=NO -D BUILD_opencv_python2=NO -D BUILD_opencv_python3=NO -D WITH_JASPER=OFF -D WITH_TBB=ON -DOPENCV_GENERATE_PKGCONFIG=ON -DOPENCV_ENABLE_NONFREE=ON ..
+build_openvino: build-clean build_openvino_task
+build_openvino_task:
+	cd $(BUILD_DIR)/opencv/opencv-$(OPENCV_VERSION)/build
+	cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} -D ENABLE_CXX11=ON -D OPENCV_EXTRA_MODULES_PATH=$(BUILD_DIR)/opencv/opencv_contrib-$(OPENCV_VERSION)/modules -D WITH_INF_ENGINE=ON -D InferenceEngine_DIR=/usr/local/dldt/inference-engine/build -D BUILD_DOCS=OFF -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=ON -D BUILD_opencv_java=NO -D BUILD_opencv_python=NO -D BUILD_opencv_python2=NO -D BUILD_opencv_python3=NO -D WITH_JASPER=OFF -D WITH_TBB=ON -DOPENCV_GENERATE_PKGCONFIG=ON -DOPENCV_ENABLE_NONFREE=ON ..
 	$(MAKE) -j $(shell nproc --all --ignore 1)
 	$(MAKE) preinstall
 	cd -
 
 # Build OpenCV with cuda.
-build_cuda:
-	cd $(TMP_DIR)opencv/opencv-$(OPENCV_VERSION)
-	mkdir build
-	cd build
-	rm -rf *
-	cmake -j $(shell nproc --all --ignore 1) -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} -D OPENCV_EXTRA_MODULES_PATH=$(TMP_DIR)opencv/opencv_contrib-$(OPENCV_VERSION)/modules -D BUILD_DOCS=OFF -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=ON -D BUILD_opencv_java=NO -D BUILD_opencv_python=NO -D BUILD_opencv_python2=NO -D BUILD_opencv_python3=NO -D WITH_JASPER=OFF -D WITH_TBB=ON -DOPENCV_GENERATE_PKGCONFIG=ON -DWITH_CUDA=ON -DENABLE_FAST_MATH=1 -DCUDA_FAST_MATH=1 -DWITH_CUBLAS=1 -DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda/ -DBUILD_opencv_cudacodec=OFF -D WITH_CUDNN=ON -D OPENCV_DNN_CUDA=ON -D CUDA_GENERATION=Auto ..
+build_cuda: build-clean build_cuda_task
+build_cuda_task:
+	cd $(BUILD_DIR)/opencv/opencv-$(OPENCV_VERSION)/build
+	cmake -j $(shell nproc --all --ignore 1) -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} -D OPENCV_EXTRA_MODULES_PATH=$(BUILD_DIR)/opencv/opencv_contrib-$(OPENCV_VERSION)/modules -D BUILD_DOCS=OFF -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=ON -D BUILD_opencv_java=NO -D BUILD_opencv_python=NO -D BUILD_opencv_python2=NO -D BUILD_opencv_python3=NO -D WITH_JASPER=OFF -D WITH_TBB=ON -DOPENCV_GENERATE_PKGCONFIG=ON -DWITH_CUDA=ON -DENABLE_FAST_MATH=1 -DCUDA_FAST_MATH=1 -DWITH_CUBLAS=1 -DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda/ -DBUILD_opencv_cudacodec=OFF -D WITH_CUDNN=ON -D OPENCV_DNN_CUDA=ON -D CUDA_GENERATION=Auto ..
 	$(MAKE) -j $(shell nproc --all --ignore 1)
 	$(MAKE) preinstall
 	cd -
 
 # Build OpenCV statically linked
-build_static:
-	cd $(TMP_DIR)opencv/opencv-$(OPENCV_VERSION)
-	mkdir build
-	cd build
-	rm -rf *
-	cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_SHARED_LIBS=OFF -D OPENCV_EXTRA_MODULES_PATH=$(TMP_DIR)opencv/opencv_contrib-$(OPENCV_VERSION)/modules -D BUILD_DOCS=OFF -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=ON -D BUILD_opencv_java=NO -D BUILD_opencv_python=NO -D BUILD_opencv_python2=NO -D BUILD_opencv_python3=NO -DWITH_JASPER=OFF -DWITH_QT=OFF -DWITH_GTK=OFF -DWITH_FFMPEG=OFF -DWITH_TIFF=OFF -DWITH_WEBP=OFF -DWITH_PNG=OFF -DWITH_1394=OFF -DWITH_OPENJPEG=OFF -DOPENCV_GENERATE_PKGCONFIG=ON ..
+build_static: build-clean build_static_task
+build_static_task:
+	cd $(BUILD_DIR)/opencv/opencv-$(OPENCV_VERSION)/build
+	cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_SHARED_LIBS=OFF -D OPENCV_EXTRA_MODULES_PATH=$(BUILD_DIR)/opencv/opencv_contrib-$(OPENCV_VERSION)/modules -D BUILD_DOCS=OFF -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=ON -D BUILD_opencv_java=NO -D BUILD_opencv_python=NO -D BUILD_opencv_python2=NO -D BUILD_opencv_python3=NO -DWITH_JASPER=OFF -DWITH_QT=OFF -DWITH_GTK=OFF -DWITH_FFMPEG=OFF -DWITH_TIFF=OFF -DWITH_WEBP=OFF -DWITH_PNG=OFF -DWITH_1394=OFF -DWITH_OPENJPEG=OFF -DOPENCV_GENERATE_PKGCONFIG=ON ..
 	$(MAKE) -j $(shell nproc --all --ignore 1)
 	$(MAKE) preinstall
 	cd -
 
 # Build OpenCV with cuda.
-build_all:
-	cd $(TMP_DIR)opencv/opencv-$(OPENCV_VERSION)
-	mkdir build
-	cd build
-	rm -rf *
-	cmake -j $(shell nproc --all --ignore 1) -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} -D ENABLE_CXX11=ON -D OPENCV_EXTRA_MODULES_PATH=$(TMP_DIR)opencv/opencv_contrib-$(OPENCV_VERSION)/modules -D WITH_INF_ENGINE=ON -D InferenceEngine_DIR=/usr/local/dldt/inference-engine/build -D BUILD_DOCS=OFF -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=ON -D BUILD_opencv_java=NO -D BUILD_opencv_python=NO -D BUILD_opencv_python2=NO -D BUILD_opencv_python3=NO -D WITH_JASPER=OFF -D WITH_TBB=ON -DOPENCV_GENERATE_PKGCONFIG=ON -DWITH_CUDA=ON -DENABLE_FAST_MATH=1 -DCUDA_FAST_MATH=1 -DWITH_CUBLAS=1 -DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda/ -DBUILD_opencv_cudacodec=OFF -D WITH_CUDNN=ON -D OPENCV_DNN_CUDA=ON -D CUDA_GENERATION=Auto ..
+build_all: build-clean build_all_task
+build_all_task:
+	cd $(BUILD_DIR)/opencv/opencv-$(OPENCV_VERSION)/build
+	cmake -j $(shell nproc --all --ignore 1) -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local -D BUILD_SHARED_LIBS=${BUILD_SHARED_LIBS} -D ENABLE_CXX11=ON -D OPENCV_EXTRA_MODULES_PATH=$(BUILD_DIR)/opencv/opencv_contrib-$(OPENCV_VERSION)/modules -D WITH_INF_ENGINE=ON -D InferenceEngine_DIR=/usr/local/dldt/inference-engine/build -D BUILD_DOCS=OFF -D BUILD_EXAMPLES=OFF -D BUILD_TESTS=OFF -D BUILD_PERF_TESTS=ON -D BUILD_opencv_java=NO -D BUILD_opencv_python=NO -D BUILD_opencv_python2=NO -D BUILD_opencv_python3=NO -D WITH_JASPER=OFF -D WITH_TBB=ON -DOPENCV_GENERATE_PKGCONFIG=ON -DWITH_CUDA=ON -DENABLE_FAST_MATH=1 -DCUDA_FAST_MATH=1 -DWITH_CUBLAS=1 -DCUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda/ -DBUILD_opencv_cudacodec=OFF -D WITH_CUDNN=ON -D OPENCV_DNN_CUDA=ON -D CUDA_GENERATION=Auto ..
 	$(MAKE) -j $(shell nproc --all --ignore 1)
 	$(MAKE) preinstall
 	cd -
 
 # Cleanup temporary build files.
 clean:
 	go clean --cache
-	rm -rf $(TMP_DIR)opencv
+	rm -rf $(BUILD_DIR)/opencv
 
 # Cleanup old library files.
 sudo_pre_install_clean:
@@ -298,7 +295,7 @@ install_all: deps download download_openvino sudo_pre_install_clean build_openvi
 
 # Install system wide.
 sudo_install:
-	cd $(TMP_DIR)opencv/opencv-$(OPENCV_VERSION)/build
+	cd $(BUILD_DIR)/opencv/opencv-$(OPENCV_VERSION)/build
 	sudo $(MAKE) install
 	sudo ldconfig
 	cd -