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#!/bin/bash

OPTIMIZATION="-O2"  # Enable optimization.
DEBUG=0             # Compile with debug UI.
IMGUI=1             # Compile ImGui libs. Our custom ImGui functions still compile on zero.
PERF=0              # Print cycle stats.
STABLE=1            # Compile experimental stable-diffusion-webui support; requires curl.

# Add flag overrides to this file (it's untracked on the tree)
if test -f build_ops; then
    source build_ops
fi

FFMPEG_LIBS="
    libavformat
    libavfilter
    libavcodec
    libswresample
    libswscale
    libavutil
"

IMGUI_FILES="
    imgui
    imgui_demo
    imgui_draw
    imgui_tables
    imgui_widgets
    imgui_impl_sdl
    imgui_impl_opengl3
"

WARNING_FLAGS="
    -Wall -Wextra \
    -Wno-unused-function -Wno-unused-variable -Wno-unused-parameter -Wno-unused-but-set-variable \
    -Wno-missing-field-initializers -Wno-sign-compare -Wno-unused-but-set-parameter \
    -Wno-missing-braces -Wno-format-security \
    -fno-exceptions -Wno-strict-aliasing \
    -Wno-write-strings
"

if [[ "$DEBUG" == 1 ]]; then
    WARNING_FLAGS="$WARNING_FLAGS -DDEBUG=1"
fi
if [[ "$THREADED" == 1 ]]; then
    WARNING_FLAGS="$WARNING_FLAGS -DTHREADED=1"
fi
if [[ "$PERF" == 1 ]]; then
    WARNING_FLAGS="$WARNING_FLAGS -DPERF=1"
fi
if [[ "$STABLE" == 1 ]]; then
    WARNING_FLAGS="$WARNING_FLAGS -DSTABLE=1"
    OPTIONAL_FLAGS="$OPTIONAL_FLAGS -lcurl"
fi


if [[ "$(uname -m)" == "x86_64" ]]; then
    ARCHNAME="x86"
    ADDITIONAL_FLAGS="
        -march=native
    "
else
    ARCHNAME="arm"
    ADDITIONAL_FLAGS="
        -march=armv8.5-a+sve
    "
    WARNING_FLAGS="$WARNING_FLAGS -DARM=1"
fi

IMGUI_FLAGS="
    -Idependencies/include/imgui -Idependencies/ $OPTIMIZATION -Wall -Wformat `sdl2-config --cflags` -c
"

if [[ "$OSTYPE" =~ ^darwin ]]; then
    OSNAME="mac"
    IMGUI_FLAGS="
        $IMGUI_FLAGS -std=c++11 -I/usr/local/include -I/opt/local/include -c
    "
    SDL_ARGS="
        `sdl2-config --cflags` -framework OpenGL -ldl `sdl2-config --libs`
    "
else
    OSNAME="linux"
    SDL_ARGS="
        `sdl2-config --cflags` -lGL -ldl `sdl2-config --libs`
    "
fi

[[ -d bin ]] || mkdir bin

clang $IMGUI_FLAGS -MJ bin/imguihelper.json -Isrc/include -o bin/imgui_helper_internal.o src/imgui_helper_internal.cpp

if [[ "$IMGUI" == 1 ]]; then
    for i in $IMGUI_FILES
    do
        clang $IMGUI_FLAGS -MJ bin/$i.json -o bin/$i.o dependencies/src/imgui/$i.cpp
    done
fi

clang dependencies/src/glad.c -MJ bin/glad.json -Idependencies/include -I/usr/local/include -I/opt/local/include -c  \
    $WARNING_FLAGS $OPTIMIZATION $ADDITIONAL_FLAGS -o bin/glad.o

clang src/main.cpp -MJ bin/main.json $WARNING_FLAGS $OPTIMIZATION $ADDITIONAL_FLAGS -o bin/real2d_"$ARCHNAME"_"$OSNAME" bin/*.o  \
    -Idependencies/include -Idependencies/include/imgui -Idependencies/src -Isrc/include \
    -std=c++11 -lstdc++   \
    $SDL_ARGS \
    $OPTIONAL_FLAGS \
    -I . \
    -lm $(pkg-config --cflags --libs $FFMPEG_LIBS)

if [[ "$DEBUG" == 1 ]]; then
    pidof gf2 && echo "c ec compiled" > /tmp/control_pipe.dat
fi


# sed -e '1s/^/[\n/' -e '$s/,$/\n]/' bin/*.json > compile_commands.json

if [[ "$OSTYPE" =~ ^darwin ]]; then
mkdir bin/real_"$ARCHNAME".app
cp -r misc/mac_app_template/Contents bin/real_"$ARCHNAME".app
cp bin/real2d_"$ARCHNAME"_"$OSNAME" bin/real_"$ARCHNAME".app/Contents/MacOS/real
xattr -cr bin/real_"$ARCHNAME".app
dylibbundler -od -b -x bin/real_"$ARCHNAME".app/Contents/MacOS/real -d bin/real_"$ARCHNAME".app/Contents/libs
fi