[WIP] .github (macOS): Build libvncserver instead of using brew

.github/workflows/main.yml

@@ -162,11 +162,11 @@ jobs:
           verbose: true
           qt: ${{ env.qt }}
 
-      - name: Install libvncserver
+      - name: Build libvncserver
         run: |
           export arch=${{ matrix.arch }}
           export deps=/tmp/deps-${{ matrix.obs }}-${{ matrix.arch }}
-          ci/macos/install-libvncserver-${{ matrix.arch }}.sh
+          ci/macos/build-libvncserver.sh
 
       - name: Build plugin
         run: |

ci/macos/build-libvncserver.sh

@@ -0,0 +1,42 @@
+#! /bin/bash
+
+set -ex
+
+brew install pkg-config
+
+mkdir deps
+
+curl -L -o deps/lzo.tar.gz http://www.oberhumer.com/opensource/lzo/download/lzo-2.10.tar.gz
+mkdir deps/lzo/
+tar -xzf deps/lzo.tar.gz -C deps/lzo/ --strip-components 1
+
+pushd deps/lzo
+cmake '-DCMAKE_OSX_ARCHITECTURES=x86_64;arm64' -B build
+cmake --build build
+popd
+file deps/lzo/build/liblzo2.a
+cat deps/lzo/build/lzo2.pc
+
+curl -L -o deps/libjpeg.tar.gz https://github.com/norihiro/obs-vnc/releases/download/0.1.0/libjpeg-2.0.4-norihiro.tar.gz
+mkdir deps/libjpeg
+tar -xzf deps/libjpeg.tar.gz -C deps/libjpeg --strip-components 1
+
+pushd deps/libjpeg
+cmake '-DCMAKE_OSX_ARCHITECTURES=x86_64;arm64' -B build
+cmake --build build
+popd
+file deps/libjpeg/build/*.dylib
+
+curl -L -o deps/libpng.tar.gz https://downloads.sourceforge.net/project/libpng/libpng16/1.6.39/libpng-1.6.39.tar.gz
+mkdir deps/libpng
+tar -xzf deps/libpng.tar.gz -C deps/libpng --strip-components 1
+
+pushd deps/libpng
+# TODO: apply arm-neon patch
+cmake '-DCMAKE_OSX_ARCHITECTURES=x86_64;arm64' -B build \
+	-DPNG_TESTS=OFF -DPNG_STATIC=ON -DPNG_SHARED=OFF -DPNG_DEBUG=OFF \
+	-DCMAKE_ASM_FLAGS='-DPNG_ARM_NEON_IMPLEMENTATION=1' -DPNG_ARM_NEON=on
+mkdir -p build/arm64
+cmake --build build
+popd
+file deps/libpng/build/libpng16.a