aboutsummaryrefslogtreecommitdiff
path: root/main.c
blob: 3d89c088bf780669c74db94a96283e69e32372c6 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
/*
 * 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 "ms/getopt.h"

#include <stddef.h>
#define WIN32_LEAN_AND_MEAN
#include <Windows.h>

struct {
	int width;
	int height;
	char *game;
	int fps;
	int quality;
	int bitrate;
	int qvs;
	char *out;
	char **demo;
	bool combine;
} 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 modsettings.cfg mod\n")) {
		bool use_bitrate = !!args.bitrate;
		if (!render_init(args.width, args.height, args.fps, use_bitrate,
					use_bitrate ? args.bitrate : args.quality, args.out, args.qvs)) 
			die("couldn't init render");
		// play the demo
		demoplayer->vt->start_playback(demoplayer, args.demo[0], false);
	}
}

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, "engine.dll")) {
		if (!api_init()) die("couldn't get apis");
		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);

int main(int argc, char **argv) {
	SetDllDirectoryA("bin/");
	int c;
	char *strend;
	while ((c = getopt(argc, argv, "w:h:g:r:q:b:s:")) != -1) {
		switch (c) {
		case 'w':
			args.width = strtol(optarg, &strend, 10);
			if (strend == optarg) die("width must be a number");
			break;
		case 'h':
			args.height = strtol(optarg, &strend, 10);
			if (strend == optarg) die("height must be a number");
			break;
		case 'r':
			args.fps = strtol(optarg, &strend, 10);
			if (strend == optarg) die("fps must be a number");
			break;
		case 'q':
			args.quality = strtol(optarg, &strend, 10);
			if (strend == optarg || args.quality < 1 || args.quality > 100)
				die("quality must be a number 1-100");
			break;
		case 's':
			args.qvs = strtol(optarg, &strend, 10);
			if (strend == optarg || args.qvs < 1 || args.qvs > 100)
				die("qvs must be a number 1-100");
			break;
		case 'b':
			args.bitrate = strtol(optarg, &strend, 10);
			if (strend == optarg) die("bitrate must be a number");
			break;
		case 'g':
			args.game = optarg;
		case '1':
			args.combine = true;
		case '?':
			break;
		}
	}

	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 = 75;
	if (!args.qvs) args.qvs = 100;

	if (argc - optind < 2) {
		printf(
			"usage:\n"
			"   rt [-w <width>] [-h <height>] [-g <game>] [-r <fps>] [-s <qvs>] [-1] [-q <quality>] OR [-b <bitrate>]\n"
			"   path/to/video.mp4 path/to/demo1.dem...\n");
		exit(1);
	}
	args.out = argv[optind++];
	args.demo = argv + optind;

	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