tyler
b6942d8577
Move all Unix-specific syscalls (fork, execvp, waitpid, strerror, /tmp) into a platform layer so the same spectrogram.c can target Windows (CreateProcess) and WebAssembly (stubs). Key changes: - src/platform.h: public API with spawn handle, error codes, path helpers - src/platform_linux.c: fork/execvp implementation, /tmp, strerror - src/platform_win32.c: CreateProcess implementation, temp dir lookup - src/platform_web.c: stub implementations (no subprocess support on web) - src/spectrogram.c: consume only platform.h; replace pid_t/fork/execvp with Platform_SpawnChild/WaitForChild; use Platform_GetTempDir() for /tmp path; replace strdup with malloc/memcpy for portability - Build: add platform_*.c to gmake, Premake, and build_web.sh
89 lines
3.0 KiB
Bash
Executable File
89 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
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# Build spectrogram viewer for the web using Emscripten
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# Usage: ./build_web.sh [debug|release]
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set -e
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# Get script directory (project root)
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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cd "$SCRIPT_DIR"
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BUILD_TYPE=${1:-release}
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RAYLIB_DIR="$SCRIPT_DIR/build/external/raylib-master"
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SRC_DIR="$SCRIPT_DIR/src"
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BUILD_DIR="$SCRIPT_DIR/bin/web"
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RAYLIB_BUILD="$BUILD_DIR/raylib_build"
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OUTPUT="$BUILD_DIR/rspektrum.html"
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# Create build directories
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mkdir -p "$BUILD_DIR" "$RAYLIB_BUILD"
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echo "=== Building Spectrogram Viewer for Web ($BUILD_TYPE) ==="
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echo "Raylib dir: $RAYLIB_DIR"
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# Common compile flags for raylib
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RAYLIB_CFLAGS="-Os -Wall -DPLATFORM_WEB -DGRAPHICS_API_OPENGL_ES2"
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if [ "$BUILD_TYPE" = "debug" ]; then
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RAYLIB_CFLAGS="-g -O0 -Wall -DPLATFORM_WEB -DGRAPHICS_API_OPENGL_ES2"
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fi
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echo "=== Step 1: Compiling raylib for web ==="
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# Compile raylib source files
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emcc -c "$RAYLIB_DIR/src/rcore.c" $RAYLIB_CFLAGS -o "$RAYLIB_BUILD/rcore.o"
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emcc -c "$RAYLIB_DIR/src/rshapes.c" $RAYLIB_CFLAGS -o "$RAYLIB_BUILD/rshapes.o"
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emcc -c "$RAYLIB_DIR/src/rtextures.c" $RAYLIB_CFLAGS -o "$RAYLIB_BUILD/rtextures.o"
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emcc -c "$RAYLIB_DIR/src/rtext.c" $RAYLIB_CFLAGS -o "$RAYLIB_BUILD/rtext.o"
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emcc -c "$RAYLIB_DIR/src/rmodels.c" $RAYLIB_CFLAGS -o "$RAYLIB_BUILD/rmodels.o"
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emcc -c "$RAYLIB_DIR/src/raudio.c" $RAYLIB_CFLAGS -o "$RAYLIB_BUILD/raudio.o"
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# Create static library
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cd "$RAYLIB_BUILD"
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emar rcs libraylib.a rcore.o rshapes.o rtextures.o rtext.o rmodels.o raudio.o
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cd "$SCRIPT_DIR"
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# Compile spectrogram (web version — no subprocess support)
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# platform_web.c provides stub implementations for spawn/error functions
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echo "=== Step 2: Compiling spectrogram + platform for web ==="
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cd "$SCRIPT_DIR"
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# Compile platform_web.o (handles fork/execvp stubs for web)
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emcc -c -Os -Wall -DPLATFORM_WEB "$SRC_DIR/platform_web.c" -o "$RAYLIB_BUILD/platform_web.o"
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# Compile spectrogram
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emcc -c -Os -Wall -DPLATFORM_WEB "$SRC_DIR/spectrogram.c" \
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-I"$RAYLIB_DIR/src" \
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-I"$RAYLIB_DIR/src/external" \
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-I"$RAYLIB_DIR/src/external/glfw/include" \
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-Iinclude \
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-o "$RAYLIB_BUILD/spectrogram.o"
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# Linker flags
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LDFLAGS="-s USE_GLFW=3 -s ASYNCIFY -s TOTAL_MEMORY=67108864 -s FORCE_FILESYSTEM=1 --preload-file resources@resources --preload-file fonts/DejaVuSansMono.ttf@fonts/DejaVuSansMono.ttf --shell-file $SCRIPT_DIR/web_shell.html -s NO_EXIT_RUNTIME=1"
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if [ "$BUILD_TYPE" = "debug" ]; then
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LDFLAGS="$LDFLAGS -g -O0 -s ASSERTIONS=1"
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else
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LDFLAGS="$LDFLAGS -O2"
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fi
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# Compile and link
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emcc -o "$OUTPUT" \
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"$RAYLIB_BUILD/platform_web.o" \
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"$RAYLIB_BUILD/spectrogram.o" \
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-I"$RAYLIB_DIR/src" \
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-I"$RAYLIB_DIR/src/external" \
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-I"$RAYLIB_DIR/src/external/glfw/include" \
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-Iinclude \
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-DPLATFORM_WEB \
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"$RAYLIB_BUILD/libraylib.a" \
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$LDFLAGS
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echo ""
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echo "=== Build complete ==="
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echo "Output: $OUTPUT"
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echo ""
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echo "To test locally, run:"
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echo " cd $BUILD_DIR && python3 -m http.server 8080"
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echo "Then open http://localhost:8080/rspektrum.html in your browser"
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