DanS
a78b44246e
The chat "Emoji style: Color" option renders the merged emoji in color (COLR/CPAL Twemoji) instead of the monochrome NotoEmoji subset. This needs FreeType, which the default stb_truetype rasterizer can't do for color glyphs. - Vendor imgui_freetype (matches the bundled 1.92 ImFontLoader API) and embed a 1.4 MB COLRv0 Twemoji font (no libpng/harfbuzz needed). - CMake gains an optional FreeType path: native Linux/macOS use the system FreeType via find_package; the mingw-w64 cross-compile has none, so build.sh --win-release now cross-builds a minimal static FreeType (scripts/build-freetype-mingw.sh) and passes it in. Absent FreeType => graceful monochrome fallback, so no build breaks. - Typography selects the FreeType loader + the color font (LoadColor) when color emoji is on, else the stb loader + mono subset; toggling reloads the atlas. Both the DX11 and OpenGL backends already support the 1.92 RGBA dynamic atlas, so color glyphs render. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
95 lines
3.7 KiB
Bash
Executable File
95 lines
3.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Cross-build a MINIMAL static FreeType for the mingw-w64 (Windows) target.
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#
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# Why: the wallet's optional color-emoji rendering needs FreeType (to rasterize the COLR/CPAL Twemoji
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# font). Native Linux/macOS pick up the system FreeType via find_package; the Debian/Ubuntu mingw-w64
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# cross toolchain ships no FreeType, so we build one here. The Twemoji font is COLRv0 (layered vector),
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# which FreeType renders WITHOUT libpng / harfbuzz / brotli / zlib — so this is a dependency-free static
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# build (no external libs to also cross-compile), producing a self-contained libfreetype.a.
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#
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# Output: <prefix>/include/freetype2/... + <prefix>/lib/libfreetype.a (default prefix: third_party/freetype-mingw)
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# build.sh --win-release runs this automatically and passes -DDRAGONX_MINGW_FREETYPE_PREFIX to CMake.
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set -euo pipefail
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FT_VERSION="2.13.3"
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FT_SHA256="5c3a8e78f7b24c20b25b54ee575d6daa40007a5f4eea2845861c3409b3021747" # freetype-2.13.3.tar.gz
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FT_URL="https://download.savannah.gnu.org/releases/freetype/freetype-${FT_VERSION}.tar.gz"
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FT_URL_MIRROR="https://downloads.sourceforge.net/project/freetype/freetype2/${FT_VERSION}/freetype-${FT_VERSION}.tar.gz"
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
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PREFIX="${1:-$SCRIPT_DIR/third_party/freetype-mingw}"
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WORK="$SCRIPT_DIR/third_party/.freetype-mingw-build"
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# Already built? (libfreetype.a present) → nothing to do.
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if [[ -f "$PREFIX/lib/libfreetype.a" && -d "$PREFIX/include/freetype2" ]]; then
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echo "FreeType (mingw) already built at: $PREFIX"
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exit 0
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fi
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# Pick the mingw compilers (posix threads variant preferred, matching build.sh).
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if command -v x86_64-w64-mingw32-gcc-posix &>/dev/null; then
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MINGW_GCC=x86_64-w64-mingw32-gcc-posix; MINGW_GXX=x86_64-w64-mingw32-g++-posix
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elif command -v x86_64-w64-mingw32-gcc &>/dev/null; then
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MINGW_GCC=x86_64-w64-mingw32-gcc; MINGW_GXX=x86_64-w64-mingw32-g++
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else
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echo "ERROR: x86_64-w64-mingw32-gcc not found (install mingw-w64)." >&2
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exit 1
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fi
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mkdir -p "$WORK"
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cd "$WORK"
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TARBALL="freetype-${FT_VERSION}.tar.gz"
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if [[ ! -f "$TARBALL" ]]; then
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echo "Downloading FreeType ${FT_VERSION} ..."
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curl -fsSL -o "$TARBALL" "$FT_URL" || curl -fsSL -o "$TARBALL" "$FT_URL_MIRROR"
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fi
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echo "Verifying SHA-256 ..."
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echo "${FT_SHA256} ${TARBALL}" | sha256sum -c - || {
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echo "ERROR: FreeType tarball checksum mismatch (expected ${FT_SHA256})." >&2
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echo " got: $(sha256sum "$TARBALL" | cut -d' ' -f1)" >&2
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exit 1
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}
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rm -rf "freetype-${FT_VERSION}"
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tar xf "$TARBALL"
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SRC="$WORK/freetype-${FT_VERSION}"
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# Minimal mingw toolchain for FreeType's own CMake.
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cat > "$WORK/ft-mingw-toolchain.cmake" <<TOOLCHAIN
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set(CMAKE_SYSTEM_NAME Windows)
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set(CMAKE_SYSTEM_PROCESSOR x86_64)
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set(CMAKE_C_COMPILER ${MINGW_GCC})
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set(CMAKE_CXX_COMPILER ${MINGW_GXX})
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set(CMAKE_RC_COMPILER x86_64-w64-mingw32-windres)
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set(CMAKE_FIND_ROOT_PATH /usr/x86_64-w64-mingw32)
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set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
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set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
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TOOLCHAIN
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echo "Configuring FreeType (static, no external deps) ..."
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rm -rf "$WORK/build"
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cmake -S "$SRC" -B "$WORK/build" \
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-DCMAKE_TOOLCHAIN_FILE="$WORK/ft-mingw-toolchain.cmake" \
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-DCMAKE_BUILD_TYPE=Release \
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-DCMAKE_INSTALL_PREFIX="$PREFIX" \
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-DBUILD_SHARED_LIBS=OFF \
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-DFT_DISABLE_ZLIB=ON \
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-DFT_DISABLE_BZIP2=ON \
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-DFT_DISABLE_PNG=ON \
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-DFT_DISABLE_HARFBUZZ=ON \
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-DFT_DISABLE_BROTLI=ON
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echo "Building + installing FreeType ..."
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cmake --build "$WORK/build" -j "$(nproc)"
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cmake --install "$WORK/build"
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if [[ -f "$PREFIX/lib/libfreetype.a" ]]; then
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echo "OK: mingw FreeType -> $PREFIX/lib/libfreetype.a"
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else
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echo "ERROR: build did not produce libfreetype.a" >&2
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exit 1
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fi
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