purge CR from this project

1 files changed, 83 insertions, 83 deletions

diff --git a/api.c b/api.c
index b24514e..563b1cc 100644
--- a/api.c
+++ b/api.c
@@ -1,83 +1,83 @@
-// SPDX-License-Identifier: ISC

-// SPDX-FileCopyrightText: 2024 Matthew Wozniak <me@woz.blue>

-

-#define NO_EXTERNS

-#include "api.h"

-#undef NO_EXTERNS

-#include "os.h"

-#include "log.h"

-#include "sst/x86.h"

-

-struct engserver *engserver = NULL;

-struct engclient *engclient = NULL;

-struct engineapi *engineapi = NULL;

-struct enginetools *enginetools = NULL;

-struct demoplayer *demoplayer = NULL;

-struct videomode **videomode = NULL;

-struct movieinfo *movieinfo = NULL;

-void (*cbuf_addtext)(char *) = NULL;

-

-// TODO: should this be split up?

-

-bool api_init(void) {

-	void *engine_dll = os_dlhandle("engine");

-	createinterface_func engine_factory =

-		(createinterface_func)os_dlsym(engine_dll, "CreateInterface");

-	if (!engine_factory) bail("couldn't get engine factory");

-	engserver = engine_factory(VENGINE_SERVER_INTERFACE_VERSION, NULL);

-	if (!engserver) bail("couldn't get IVEngineServer from engine");

-	engclient = engine_factory(VENGINE_CLIENT_INTERFACE_VERSION, NULL);

-	if (!engclient) bail("couldn't get IVEngineClient from engine");

-	engineapi = engine_factory(VENGINE_LAUNCHER_INTERFACE_VERSION, NULL);

-	if (!engineapi) bail("couldn't get IEngineAPI from engine");

-	enginetools = engine_factory(VENGINE_TOOL_INTERFACE_VERSION, NULL);

-	if (!engineapi) bail("couldn't get IEngineTools from engine");

-

-	// find cbuf_addtext

-	const u8 *instr = (const u8 *)engserver->vt->server_command;

-	// ServerCommand() calls a few small functions before Cbuf_AddText but they

-	// get inlined. look for 'push esi' and then a call.

-	for (const u8 *p = instr; p - instr < 64;) {

-		if (*p == X86_PUSHESI && *++p == X86_CALL) {

-			// jump is relative to after the instruction

-			cbuf_addtext = (void (*)(char *))(p + 5 + *(i32 *)(p + 1));

-		}

-		int l = x86_len(p);

-		if (l == -1)

-			bail("invalid instruction looking for cbuf_addtext");

-		p += l;

-	}

-	if (!cbuf_addtext) bail("couldn't find cbuf_addtext");

-

-	// find demoplayer

-	instr = (const u8 *)engclient->vt->is_playing_demo;

-	// CEngineClient::IsPlayingDemo is a wrapper around a demoplayer call

-	// The first thing it does should be load a ptr to demoplayer into ECX

-	if (instr[0] != X86_MOVRMW || instr[1] != X86_MODRM(0, 1, 5))

-		bail("couldn't get demoplayer");

-	demoplayer = **(struct demoplayer ***)(instr + 2);

-	debug("demoplayer = %p", (void *)demoplayer);

-

-	// find videomode

-	// CEngineAPI::SetEngineWindow calls videomode->SetGameWindow after

-	// detaching the current window with another vcall. Look for the second one.

-	// This, like the demoplayer, is a pointer. Mind the double dereference.

-	instr = (const u8 *)engineapi->vt->set_engine_window;

-	int mov_ecx_counter = 0;

-	for (const u8 *p = instr; p - instr < 64;) {

-		if (p[0] == X86_MOVRMW && p[1] == X86_MODRM(0, 1, 5)

-				&& ++mov_ecx_counter == 2) {

-			videomode = *(struct videomode ***)(p + 2);

-			break;

-		}

-		int l = x86_len(p);

-		if (l == -1)

-			bail("invalid instruction looking for videomode");

-		p += l;

-	}

-	debug("videomode = %p", (void *)videomode);

-	

-	return true;

-}

-

-// vi: sw=4 ts=4 noet tw=80 cc=80

+// SPDX-License-Identifier: ISC
+// SPDX-FileCopyrightText: 2024 Matthew Wozniak <me@woz.blue>
+
+#define NO_EXTERNS
+#include "api.h"
+#undef NO_EXTERNS
+#include "os.h"
+#include "log.h"
+#include "sst/x86.h"
+
+struct engserver *engserver = NULL;
+struct engclient *engclient = NULL;
+struct engineapi *engineapi = NULL;
+struct enginetools *enginetools = NULL;
+struct demoplayer *demoplayer = NULL;
+struct videomode **videomode = NULL;
+struct movieinfo *movieinfo = NULL;
+void (*cbuf_addtext)(char *) = NULL;
+
+// TODO: should this be split up?
+
+bool api_init(void) {
+	void *engine_dll = os_dlhandle("engine");
+	createinterface_func engine_factory =
+		(createinterface_func)os_dlsym(engine_dll, "CreateInterface");
+	if (!engine_factory) bail("couldn't get engine factory");
+	engserver = engine_factory(VENGINE_SERVER_INTERFACE_VERSION, NULL);
+	if (!engserver) bail("couldn't get IVEngineServer from engine");
+	engclient = engine_factory(VENGINE_CLIENT_INTERFACE_VERSION, NULL);
+	if (!engclient) bail("couldn't get IVEngineClient from engine");
+	engineapi = engine_factory(VENGINE_LAUNCHER_INTERFACE_VERSION, NULL);
+	if (!engineapi) bail("couldn't get IEngineAPI from engine");
+	enginetools = engine_factory(VENGINE_TOOL_INTERFACE_VERSION, NULL);
+	if (!engineapi) bail("couldn't get IEngineTools from engine");
+
+	// find cbuf_addtext
+	const u8 *instr = (const u8 *)engserver->vt->server_command;
+	// ServerCommand() calls a few small functions before Cbuf_AddText but they
+	// get inlined. look for 'push esi' and then a call.
+	for (const u8 *p = instr; p - instr < 64;) {
+		if (*p == X86_PUSHESI && *++p == X86_CALL) {
+			// jump is relative to after the instruction
+			cbuf_addtext = (void (*)(char *))(p + 5 + *(i32 *)(p + 1));
+		}
+		int l = x86_len(p);
+		if (l == -1)
+			bail("invalid instruction looking for cbuf_addtext");
+		p += l;
+	}
+	if (!cbuf_addtext) bail("couldn't find cbuf_addtext");
+
+	// find demoplayer
+	instr = (const u8 *)engclient->vt->is_playing_demo;
+	// CEngineClient::IsPlayingDemo is a wrapper around a demoplayer call
+	// The first thing it does should be load a ptr to demoplayer into ECX
+	if (instr[0] != X86_MOVRMW || instr[1] != X86_MODRM(0, 1, 5))
+		bail("couldn't get demoplayer");
+	demoplayer = **(struct demoplayer ***)(instr + 2);
+	debug("demoplayer = %p", (void *)demoplayer);
+
+	// find videomode
+	// CEngineAPI::SetEngineWindow calls videomode->SetGameWindow after
+	// detaching the current window with another vcall. Look for the second one.
+	// This, like the demoplayer, is a pointer. Mind the double dereference.
+	instr = (const u8 *)engineapi->vt->set_engine_window;
+	int mov_ecx_counter = 0;
+	for (const u8 *p = instr; p - instr < 64;) {
+		if (p[0] == X86_MOVRMW && p[1] == X86_MODRM(0, 1, 5)
+				&& ++mov_ecx_counter == 2) {
+			videomode = *(struct videomode ***)(p + 2);
+			break;
+		}
+		int l = x86_len(p);
+		if (l == -1)
+			bail("invalid instruction looking for videomode");
+		p += l;
+	}
+	debug("videomode = %p", (void *)videomode);
+	
+	return true;
+}
+
+// vi: sw=4 ts=4 noet tw=80 cc=80