Initial commit, basic old school demo

Signed-off-by: Joachim Wiberg <[email protected]>

Author: troglobit

.gitignore

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+*~
+demo

Dockerfile

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+FROM alpine:latest
+
+RUN apk add --no-cache \
+    sdl2 \
+    sdl2-dev \
+    sdl2_ttf \
+    sdl2_ttf-dev \
+    ttf-dejavu \
+    gcc \
+    musl-dev \
+    make
+
+WORKDIR /app
+COPY demo.c .
+
+RUN gcc -o demo demo.c -lSDL2 -lSDL2_ttf -lm -O2
+
+ENV DISPLAY=:0
+
+CMD ["./demo"]

Makefile

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+sdl_CFLAGS = $(shell pkg-config --cflags sdl2 SDL2_ttf SDL2_image)
+sdl_LIBS   = $(shell pkg-config --libs sdl2 SDL2_ttf SDL2_image)
+
+CFLAGS     =  $(sdl_CFLAGS) -Wall -Wextra -O2
+LDLIBS     = $(sdl_LIBS) -lm
+DEBUGFLAGS = -g -O0 -DDEBUG
+
+TARGET     = demo
+SOURCE     = demo.c
+
+all: $(TARGET)
+
+$(TARGET): $(SOURCE)
+	$(CC) $(CFLAGS) -o $(TARGET) $(SOURCE) $(LDLIBS)
+
+debug: $(SOURCE)
+	$(CC) $(CFLAGS) $(DEBUGFLAGS) -o $(TARGET) $(SOURCE) $(LDLIBS)
+
+run: $(TARGET)
+	./$(TARGET)
+
+clean:
+	rm -f $(TARGET)
+
+docker-build:
+	docker build -t demo .
+
+docker-run: docker-build
+	xhost +local:docker
+	docker run -it --rm \
+		-e DISPLAY=$(DISPLAY) \
+		-v /tmp/.X11-unix:/tmp/.X11-unix \
+		demo
+
+.PHONY: all clean run debug docker-build docker-run

README.md

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+
+On a Debian/Ubuntu/Mint system:
+
+```
+sudo apt install libsdl2-dev libsdl2-ttf-dev libsdl2-image-dev
+```