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/*
* Copyright © 2024 Matthew Wozniak <me@woz.blue>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
#include "api.h"
#include "hook.h"
#include "log.h"
#include "render.h"
#include "os.h"
#include "opt.h"
#include <stddef.h>
#define WIN32_LEAN_AND_MEAN
#include <Windows.h>
struct {
int width;
int height;
const char *game;
int fps;
int quality;
int bitrate;
const char *out;
const char **demo;
int demo_count;
const char *encoder;
const char *preset;
} args = {0};
void (*orig_cbuf_addtext)(char *);
void hook_cbuf_addtext(char *str) {
orig_cbuf_addtext(str);
// this is the last thing that happens when the game is opened
if (!strcmp(str, "exec valve.rc\n")) {
// after sound has been init'd, we can finish this
if (!api_find_snd_recordbuffer())
die("couldn't find SND_RecordBuffer");
if (!render_init())
die("couldn't init render");
demoplayer->vt->start_playback(demoplayer, args.demo[0], false);
orig_cbuf_addtext("exec prerender");
}
}
char cmdline[128];
char WINAPI *hook_GetCommandLineA(void) {
return cmdline;
}
void *(WINAPI *orig_LoadLibraryExA)(const char *, void *, int);
void WINAPI *hook_LoadLibraryExA(const char *filename, void *hfile, int flags) {
// if the dll is already loaded, don't run our code again
if (os_dlhandle(filename))
return orig_LoadLibraryExA(filename, hfile, flags);
void *ret = orig_LoadLibraryExA(filename, hfile, flags);
if (!ret) return ret;
// cut down to basename for display
const char *basename = filename;
for (const char *p = filename; *p; p++)
if (*p == '\\') basename = p + 1;
if (!strcmp(basename, "gameui.dll") || !strcmp(basename, "GameUI.dll")) {
if (!api_init(basename[0] == 'G'))
die("couldn't get apis");
cbuf_addtext("echo THIS WORKS!!!!!!!!!!!!;");
orig_cbuf_addtext = (void (*)(char *))
hook_inline((void *)cbuf_addtext, (void *)hook_cbuf_addtext);
}
return ret;
}
typedef int (*LauncherMain_t)(void *instance, void *prev_inst, char *cmdline,
int cmd_show);
void usage() {
printf("usage:\n"
"\trt [-w <width>] [-h <height>] [-g <game>] [-e <encoder>] [-r <fps>]\n"
"\t[-q <crf>] OR [-b <bitrate>] path/to/video.mp4 path/to/demo1.dem...\n");
exit(1);
}
int main(int argc, const char **argv) {
SetDllDirectoryA("bin/");
char *strend;
const char *arg;
FOR_OPTS(argc, argv) {
case 'w':
arg = OPTARG(argc, argv);
args.width = strtol(arg, &strend, 10);
if (strend == arg) die("width must be a number");
break;
case 'h':
arg = OPTARG(argc, argv);
args.height = strtol(arg, &strend, 10);
if (strend == arg) die("height must be a number");
break;
case 'r':
arg = OPTARG(argc, argv);
args.fps = strtol(arg, &strend, 10);
if (strend == arg) die("fps must be a number");
break;
case 'q':
arg = OPTARG(argc, argv);
args.quality = strtol(arg, &strend, 10);
if (strend == arg) die("crf must be a number");
break;
case 'b':
arg = OPTARG(argc, argv);
args.bitrate = strtol(arg, &strend, 10);
if (strend == arg) die("bitrate must be a number");
break;
case 'g':
args.game = OPTARG(argc, argv);
break;
case 'p':
args.preset = OPTARG(argc, argv);
break;
case 'e':
args.encoder = OPTARG(argc, argv);
break;
}
if (!args.encoder) args.encoder = "libx264";
if (!args.width) args.width = 1280;
if (!args.height) args.height = 720;
if (!args.game) args.game = "hl2";
if (!args.fps) args.fps = 30;
if (!args.quality) args.quality = 25;
if (!args.preset) args.preset = "fast";
if (argc < 2) usage();
args.out = argv[0];
args.demo = argv + 1;
args.demo_count = argc - 2;
sprintf(cmdline, "hl2.exe -game %s -w %d -h %d -window -console",
args.game, args.width, args.height);
info("cmdline = %s", cmdline);
hook_init();
orig_LoadLibraryExA = (typeof(orig_LoadLibraryExA))hook_dllapi("kernel32",
"LoadLibraryExA", (void *)hook_LoadLibraryExA);
hook_dllapi("kernel32", "GetCommandLineA", (void *)hook_GetCommandLineA);
void *launcher_dll = os_dlopen("launcher");
LauncherMain_t launcher_main =
(LauncherMain_t)os_dlsym(launcher_dll, "LauncherMain");
if (!launcher_main) die("couldn't open launcher");
launcher_main(NULL, NULL, cmdline, 0);
}
// vi: sw=4 ts=4 noet tw=80 cc=80
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