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set -eu
camellia_path_check
fetch() {
git clone https://github.com/ozkl/doomgeneric
cd doomgeneric
# TODO use a newer commit
git -c advice.detachedHead=false checkout ee3ee581912dacd38af06e81da2374c1267453e8
cd doomgeneric
rm doomgeneric # a leftover OS X binary
sed s/xlib/camellia/ -i Makefile
sed s/-lX11// -i Makefile
curl -A "Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/81.0" -LO https://assets.wad-archive.com/wadarchive/files/1437fc1ac25a17d5b3cef4c9d2f74e40cae3d231/DOOM1.WAD
cat <<\EOF > doomgeneric_camellia.c
#include <string.h>
#include <camellia/syscalls.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <user/lib/draw/draw.h>
#include "doomgeneric.h"
struct framebuf fb;
void DG_Init(void) {
if (fb_setup(&fb, "/kdev/video/") < 0) {
puts("DG_Init: fb_setup error");
abort();
}
}
void DG_DrawFrame(void) {
size_t doomw = DOOMGENERIC_RESX;
size_t doomh = DOOMGENERIC_RESY;
size_t doompitch = doomw * 4;
for (int y = 0; y < DOOMGENERIC_RESY; y++) {
memcpy(fb.b + fb.pitch * y, ((char*)DG_ScreenBuffer) + doompitch * y, doompitch);
}
struct rect d;
dirty_mark(&d, 0, 0);
dirty_mark(&d, doomw, doomh);
dirty_flush(&d, &fb);
}
static uint32_t timer = 0;
void DG_SleepMs(uint32_t ms) {
timer += ms;
_syscall_sleep(ms);
}
uint32_t DG_GetTicksMs(void) {
/* if it's stupid and it works... */
return timer;
}
int DG_GetKey(int *pressed, unsigned char *doomKey) {
return 0;
}
void DG_SetWindowTitle(const char *title) {
(void)title;
}
EOF
}
prep() {
[ -d doomgeneric ] || (fetch)
cd doomgeneric/doomgeneric
}
case $1 in
install) (prep; make "CC=cc" && cp doomgeneric $PREFIX/bin/doom && cp DOOM1.WAD $PREFIX/) ;;
clean) (prep; make clean) ;;
*) echo "usage: $0 install|clean"; false ;;
esac
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