From 5170307f72115aa03683631890830c268778f6d4 Mon Sep 17 00:00:00 2001
From: WarmUpTill <WarmUpTill@web.de>
Date: Wed, 15 Feb 2023 14:14:59 +0100
Subject: [PATCH] Add leptonica and tesseract build

---
 .github/scripts/.build.zsh            |  81 +++++++++++++++++++--
 .github/scripts/Build-Windows.ps1     | 101 ++++++++++++++++++++++----
 .github/scripts/utils.zsh/setup_linux |   1 +
 3 files changed, 163 insertions(+), 20 deletions(-)

diff --git a/.github/scripts/.build.zsh b/.github/scripts/.build.zsh
index 74c9cb7d..3464129d 100755
--- a/.github/scripts/.build.zsh
+++ b/.github/scripts/.build.zsh
@@ -173,23 +173,29 @@ Usage: %B${functrace[1]%:*}%b <option> [<options>]
   read -r product_name product_version <<< \
     "$(jq -r '. | {name, version} | join(" ")' ${buildspec_file})"
 
-  local opencv_dir="${project_root}/deps/opencv"
-  local opencv_build_dir="${opencv_dir}/build_${target##*-}"
+
+
+
   case ${host_os} {
     macos)
       sed -i '' \
         "s/project(\(.*\) VERSION \(.*\))/project(${product_name} VERSION ${product_version})/" \
         "${project_root}/CMakeLists.txt"
 
-        # Note: IPP must be set to OFF to avoid build failures on ARM architectures
+        local opencv_dir="${project_root}/deps/opencv"
+        local opencv_build_dir="${opencv_dir}/build_${target##*-}"
+
         local -a opencv_cmake_args=(
           -DCMAKE_BUILD_TYPE=Release
           -DBUILD_LIST=core,imgproc,objdetect
           -DCMAKE_OSX_ARCHITECTURES=${${target##*-}//universal/x86_64;arm64}
           -DCMAKE_OSX_DEPLOYMENT_TARGET=${DEPLOYMENT_TARGET:-10.15}
-          -DWITH_IPP=OFF
         )
 
+        if [ "${target}" != "macos-x86_64" ]; then
+          opencv_cmake_args+=(-DWITH_IPP=OFF)
+        fi
+
         pushd ${opencv_dir}
         log_info "Configure OpenCV ..."
         cmake -S . -B ${opencv_build_dir} -G ${generator} ${opencv_cmake_args}
@@ -198,9 +204,73 @@ Usage: %B${functrace[1]%:*}%b <option> [<options>]
         cmake --build ${opencv_build_dir} --config Release
 
         log_info "Installing OpenCV..."
-        cmake --install ${opencv_build_dir} --config Release --prefix ${opencv_build_dir}
+        cmake --install ${opencv_build_dir} --config Release || true
         popd
 
+        local leptonica_dir="${project_root}/deps/leptonica"
+        local leptonica_build_dir="${leptonica_dir}/build_${target##*-}"
+
+        local -a leptonica_cmake_args=(
+          -DCMAKE_BUILD_TYPE=Release
+          -DCMAKE_OSX_ARCHITECTURES=${${target##*-}//universal/x86_64;arm64}
+          -DCMAKE_OSX_DEPLOYMENT_TARGET=${DEPLOYMENT_TARGET:-10.15}
+          -DSW_BUILD=OFF
+          -DOPENJPEG_SUPPORT=OFF
+          -DLIBWEBP_SUPPORT=OFF
+          -DCMAKE_DISABLE_FIND_PACKAGE_GIF=TRUE
+          -DCMAKE_DISABLE_FIND_PACKAGE_JPEG=TRUE
+          -DCMAKE_DISABLE_FIND_PACKAGE_TIFF=TRUE
+          -DCMAKE_DISABLE_FIND_PACKAGE_PNG=TRUE
+        )
+
+        pushd ${leptonica_dir}
+        log_info "Configure Leptonica ..."
+        cmake -S . -B ${leptonica_build_dir} -G ${generator} ${leptonica_cmake_args}
+
+        log_info "Building Leptonica ..."
+        cmake --build ${leptonica_build_dir} --config Release
+
+        log_info "Installing Leptonica..."
+        # Workaround for "unknown file attribute: H" errors when running install
+        cmake --install ${leptonica_build_dir} --config Release || :
+        popd
+
+        local tesseract_dir="${project_root}/deps/tesseract"
+        local tesseract_build_dir="${tesseract_dir}/build_${target##*-}"
+
+        local -a tesseract_cmake_args=(
+          -DCMAKE_BUILD_TYPE=Release
+          -DCMAKE_OSX_ARCHITECTURES=${${target##*-}//universal/x86_64;arm64}
+          -DCMAKE_OSX_DEPLOYMENT_TARGET=${DEPLOYMENT_TARGET:-10.15}
+          -DSW_BUILD=OFF
+          -DBUILD_TRAINING_TOOLS=OFF
+        )
+
+        if [ "${target}" != "macos-x86_64" ]; then
+          tesseract_cmake_args+=(
+            -DCMAKE_SYSTEM_PROCESSOR=aarch64
+            -DHAVE_AVX=FALSE
+            -DHAVE_AVX2=FALSE
+            -DHAVE_AVX512F=FALSE
+            -DHAVE_FMA=FALSE
+            -DHAVE_SSE4_1=FALSE
+            -DHAVE_NEON=TRUE
+          )
+          sed -i'.original' 's/HAVE_NEON FALSE/HAVE_NEON TRUE/g' "${tesseract_dir}/CMakeLists.txt"
+        fi
+
+        pushd ${tesseract_dir}
+        log_info "Configure Tesseract ..."
+        cmake -S . -B ${tesseract_build_dir} -G ${generator} ${tesseract_cmake_args}
+
+        log_info "Building Tesseract ..."
+        #cmake --build ${tesseract_build_dir} --config Release --target libtesseract
+        cmake --build ${tesseract_build_dir} --config Release
+
+        log_info "Installing Tesseract..."
+        #cmake --install ${tesseract_build_dir} --config Release --component libtesseract
+        cmake --install ${tesseract_build_dir} --config Release
+        popd
       ;;
     linux)
       sed -i'' \
@@ -242,7 +312,6 @@ Usage: %B${functrace[1]%:*}%b <option> [<options>]
           -DCMAKE_OSX_DEPLOYMENT_TARGET=${DEPLOYMENT_TARGET:-10.15}
           -DOBS_CODESIGN_LINKER=ON
           -DOBS_BUNDLE_CODESIGN_IDENTITY="${CODESIGN_IDENT:--}"
-          -DOpenCV_DIR="${opencv_build_dir}"
         )
 
         ;;
diff --git a/.github/scripts/Build-Windows.ps1 b/.github/scripts/Build-Windows.ps1
index f889fdd9..1ff6afed 100644
--- a/.github/scripts/Build-Windows.ps1
+++ b/.github/scripts/Build-Windows.ps1
@@ -37,7 +37,7 @@ function Build {
 
     $UtilityFunctions = Get-ChildItem -Path $PSScriptRoot/utils.pwsh/*.ps1 -Recurse
 
-    foreach($Utility in $UtilityFunctions) {
+    foreach ($Utility in $UtilityFunctions) {
         Write-Debug "Loading $($Utility.FullName)"
         . $Utility.FullName
     }
@@ -57,18 +57,22 @@ function Build {
         $CmakeGenerator = $script:VisualStudioVersion
     }
 
+    $DepsPath = "plugin-deps-${script:DepsVersion}-qt${script:QtVersion}-${script:Target}"
+    $DepInstallPath = "$(Resolve-Path -Path ${ProjectRoot}/../obs-build-dependencies/${DepsPath})"
+
+    $OpenCVPath = "${ProjectRoot}/deps/opencv"
+    $OpenCVBuildPath = "${OpenCVPath}/build"
+
     Push-Location -Stack BuildOpenCVTemp
     if ( ! ( ( $SkipAll ) -or ( $SkipBuild ) ) ) {
         Ensure-Location $ProjectRoot
 
-        $OpenCVPath = "${ProjectRoot}/deps/opencv"
-        $OpenCVBuildPath = "${OpenCVPath}/build"
         $OpenCVCmakeArgs = @(
             '-G', $CmakeGenerator
             "-DCMAKE_SYSTEM_VERSION=${script:PlatformSDK}"
             "-DCMAKE_GENERATOR_PLATFORM=$(if (${script:Target} -eq "x86") { "Win32" } else { "x64" })"
             "-DCMAKE_BUILD_TYPE=Release"
-            "-DCMAKE_PREFIX_PATH:PATH=$(Resolve-Path -Path ${ProjectRoot}/../obs-build-dependencies/${DepsPath})"
+            "-DCMAKE_PREFIX_PATH:PATH=${DepInstallPath}"
             "-DBUILD_LIST=core,imgproc,objdetect"
         )
 
@@ -80,18 +84,92 @@ function Build {
         )
 
         if ( $VerbosePreference -eq 'Continue' ) {
-            $OpenCVCmakeArgs+=('--verbose')
+            $OpenCVCmakeArgs += ('--verbose')
         }
 
         Log-Information "Building OpenCV..."
         Invoke-External cmake --build "${OpenCVBuildPath}" @OpenCVCmakeArgs
     }
     Log-Information "Install OpenCV}..."
-    Invoke-External cmake --install "${OpenCVBuildPath}" --prefix "${OpenCVBuildPath}" @OpenCVCmakeArgs
+    Invoke-External cmake --install "${OpenCVBuildPath}" --prefix "${DepInstallPath}" @OpenCVCmakeArgs
+
+    $LeptonicaPath = "${ProjectRoot}/deps/leptonica"
+    $LeptonicaBuildPath = "${LeptonicaPath}/build"
+
+    Push-Location -Stack BuildLeptonicaTemp
+    if ( ! ( ( $SkipAll ) -or ( $SkipBuild ) ) ) {
+        Ensure-Location $ProjectRoot
+
+        $LeptonicaCmakeArgs = @(
+            '-G', $CmakeGenerator
+            "-DCMAKE_SYSTEM_VERSION=${script:PlatformSDK}"
+            "-DCMAKE_GENERATOR_PLATFORM=$(if (${script:Target} -eq "x86") { "Win32" } else { "x64" })"
+            "-DCMAKE_BUILD_TYPE=Release"
+            "-DCMAKE_PREFIX_PATH:PATH=${DepInstallPath}"
+            "-DCMAKE_INSTALL_PREFIX:PATH=${DepInstallPath}"
+            "-DSW_BUILD=OFF"
+            "-DLIBWEBP_SUPPORT=OFF"
+        )
+
+        Log-Information "Configuring leptonica..."
+        Invoke-External cmake -S ${LeptonicaPath} -B ${LeptonicaBuildPath} @LeptonicaCmakeArgs
+
+        $LeptonicaCmakeArgs = @(
+            '--config', "Release"
+        )
+
+        if ( $VerbosePreference -eq 'Continue' ) {
+            $LeptonicaCmakeArgs += ('--verbose')
+        }
+
+        Log-Information "Building leptonica..."
+        Invoke-External cmake --build "${LeptonicaBuildPath}" @LeptonicaCmakeArgs
+    }
+    Log-Information "Install leptonica..."
+    Invoke-External cmake --install "${LeptonicaBuildPath}" --prefix "${DepInstallPath}" @LeptonicaCmakeArgs
+
+    Push-Location -Stack BuildTesseractTemp
+    if ( ! ( ( $SkipAll ) -or ( $SkipBuild ) ) ) {
+        Ensure-Location $ProjectRoot
+
+        $TesseractPath = "${ProjectRoot}/deps/tesseract"
+        $TesseractBuildPath = "${TesseractPath}/build"
+
+        # Explicitly disable PkgConfig and tiff as it will lead build errors
+        $TesseractCmakeArgs = @(
+            '-G', $CmakeGenerator
+            "-DCMAKE_SYSTEM_VERSION=${script:PlatformSDK}"
+            "-DCMAKE_GENERATOR_PLATFORM=$(if (${script:Target} -eq "x86") { "Win32" } else { "x64" })"
+            "-DCMAKE_BUILD_TYPE=Release"
+            "-DCMAKE_PREFIX_PATH:PATH=${DepInstallPath}"
+            "-DCMAKE_INSTALL_PREFIX:PATH=${DepInstallPath}"
+            "-DSW_BUILD=OFF"
+            "-DDISABLE_CURL=ON"
+            "-DBUILD_TRAINING_TOOLS=OFF"
+            "-DCMAKE_DISABLE_FIND_PACKAGE_TIFF=TRUE"
+            "-DCMAKE_DISABLE_FIND_PACKAGE_PkgConfig=TRUE"
+        )
+
+        Log-Information "Configuring tesseract..."
+        Invoke-External cmake -S ${TesseractPath} -B ${TesseractBuildPath} @TesseractCmakeArgs
+
+        $TesseractCmakeArgs = @(
+            '--config', "Release"
+        )
+
+        if ( $VerbosePreference -eq 'Continue' ) {
+            $TesseractCmakeArgs += ('--verbose')
+        }
+
+        Log-Information "Building tesseract..."
+        Invoke-External cmake --build "${TesseractBuildPath}" @TesseractCmakeArgs
+    }
+    Log-Information "Install tesseract..."
+    Invoke-External cmake --install "${TesseractBuildPath}" --prefix "${DepInstallPath}" @TesseractCmakeArgs
 
     (Get-Content -Path ${ProjectRoot}/CMakeLists.txt -Raw) `
         -replace "project\((.*) VERSION (.*)\)", "project(${ProductName} VERSION ${ProductVersion})" `
-        | Out-File -Path ${ProjectRoot}/CMakeLists.txt
+    | Out-File -Path ${ProjectRoot}/CMakeLists.txt
 
     Setup-Obs
 
@@ -99,18 +177,13 @@ function Build {
     if ( ! ( ( $SkipAll ) -or ( $SkipBuild ) ) ) {
         Ensure-Location $ProjectRoot
 
-        $OpenCVPath = "${ProjectRoot}/deps/opencv"
-        $OpenCVBuildPath = "${OpenCVPath}/build"
-
-        $DepsPath = "plugin-deps-${script:DepsVersion}-qt${script:QtVersion}-${script:Target}"
         $CmakeArgs = @(
             '-G', $CmakeGenerator
             "-DCMAKE_SYSTEM_VERSION=${script:PlatformSDK}"
             "-DCMAKE_GENERATOR_PLATFORM=$(if (${script:Target} -eq "x86") { "Win32" } else { "x64" })"
             "-DCMAKE_BUILD_TYPE=${Configuration}"
-            "-DCMAKE_PREFIX_PATH:PATH=$(Resolve-Path -Path "${ProjectRoot}/../obs-build-dependencies/${DepsPath}")"
+            "-DCMAKE_PREFIX_PATH:PATH=${DepInstallPath}"
             "-DQT_VERSION=${script:QtVersion}"
-            "-DOpenCV_DIR=${OpenCVBuildPath}"
         )
 
         Log-Debug "Attempting to configure OBS with CMake arguments: $($CmakeArgs | Out-String)"
@@ -122,7 +195,7 @@ function Build {
         )
 
         if ( $VerbosePreference -eq 'Continue' ) {
-            $CmakeArgs+=('--verbose')
+            $CmakeArgs += ('--verbose')
         }
 
         Log-Information "Building ${ProductName}..."
diff --git a/.github/scripts/utils.zsh/setup_linux b/.github/scripts/utils.zsh/setup_linux
index b6b41a1b..eded2af5 100755
--- a/.github/scripts/utils.zsh/setup_linux
+++ b/.github/scripts/utils.zsh/setup_linux
@@ -38,6 +38,7 @@ if (( ! (${skips[(Ie)all]} + ${skips[(Ie)deps]}) )) {
     libxtst-dev \
     libxss-dev \
     libopencv-dev \
+    libtesseract-dev \
     libprocps-dev
 
   local -a _qt_packages=()