mumble link support

The coordinate calculation was adopted from Warsow's mumble patch.

Makefile

@@ -125,6 +125,10 @@ ifndef USE_CODEC_VORBIS
 USE_CODEC_VORBIS=0
 endif
 
+ifndef USE_MUMBLE
+USE_MUMBLE=1
+endif
+
 ifndef USE_LOCAL_HEADERS
 USE_LOCAL_HEADERS=1
 endif
@@ -232,6 +236,10 @@ ifeq ($(PLATFORM),linux)
     BASE_CFLAGS += -DUSE_CODEC_VORBIS
   endif
 
+  ifeq ($(USE_MUMBLE),1)
+    BASE_CFLAGS += -DUSE_MUMBLE
+  endif
+
   OPTIMIZE = -O3 -ffast-math -funroll-loops -fomit-frame-pointer
 
   ifeq ($(ARCH),x86_64)
@@ -283,6 +291,10 @@ ifeq ($(PLATFORM),linux)
     CLIENT_LDFLAGS += -lvorbisfile -lvorbis -logg
   endif
 
+  ifeq ($(USE_MUMBLE),1)
+    CLIENT_LDFLAGS += -lrt
+  endif
+
   ifeq ($(ARCH),i386)
     # linux32 make ...
     BASE_CFLAGS += -m32
@@ -346,6 +358,10 @@ ifeq ($(PLATFORM),darwin)
     CLIENT_LDFLAGS += -lvorbisfile -lvorbis -logg
   endif
 
+  ifeq ($(USE_MUMBLE),1)
+    BASE_CFLAGS += -DUSE_MUMBLE
+  endif
+
   BASE_CFLAGS += -D_THREAD_SAFE=1
 
   ifeq ($(USE_LOCAL_HEADERS),1)
@@ -412,6 +428,10 @@ ifeq ($(PLATFORM),mingw32)
     BASE_CFLAGS += -DUSE_CODEC_VORBIS
   endif
 
+  ifeq ($(USE_MUMBLE),1)
+    BASE_CFLAGS += -DUSE_MUMBLE
+  endif
+
   OPTIMIZE = -O3 -march=i586 -fno-omit-frame-pointer -ffast-math \
     -falign-loops=2 -funroll-loops -falign-jumps=2 -falign-functions=2 \
     -fstrength-reduce
@@ -497,6 +517,10 @@ ifeq ($(PLATFORM),freebsd)
     BASE_CFLAGS += -DUSE_CODEC_VORBIS
   endif
 
+  ifeq ($(USE_MUMBLE),1)
+    BASE_CFLAGS += -DUSE_MUMBLE
+  endif
+
   ifeq ($(ARCH),axp)
     BASE_CFLAGS += -DNO_VM_COMPILED
     RELEASE_CFLAGS=$(BASE_CFLAGS) -DNDEBUG -O3 -ffast-math -funroll-loops \
@@ -564,6 +588,10 @@ ifeq ($(PLATFORM),openbsd)
     BASE_CFLAGS += -DUSE_CODEC_VORBIS
   endif
 
+  ifeq ($(USE_MUMBLE),1)
+    BASE_CFLAGS += -DUSE_MUMBLE
+  endif
+
   BASE_CFLAGS += -DNO_VM_COMPILED -I/usr/X11R6/include -I/usr/local/include
   RELEASE_CFLAGS=$(BASE_CFLAGS) -DNDEBUG -O3 \
     -march=pentium -fomit-frame-pointer -pipe -ffast-math \
@@ -1339,6 +1367,11 @@ else
     $(B)/client/sys_unix.o
 endif
 
+ifeq ($(USE_MUMBLE),1)
+  Q3OBJ += \
+    $(B)/client/libmumblelink.o
+endif
+
 Q3POBJ += \
   $(B)/client/sdl_glimp.o
 

code/client/cl_cgame.c

@@ -25,6 +25,8 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
 #include "../botlib/botlib.h"
 
+#include "libmumblelink.h"
+
 extern	botlib_export_t	*botlib_export;
 
 extern qboolean loadCamera(const char *name);
@@ -907,6 +909,13 @@ void CL_FirstSnapshot( void ) {
 		Cbuf_AddText( cl_activeAction->string );
 		Cvar_Set( "activeAction", "" );
 	}
+
+#ifdef USE_MUMBLE
+	if ((cl_useMumble->integer) && !mumble_islinked()) {
+		int ret = mumble_link(CLIENT_WINDOW_TITLE);
+		Com_Printf("Mumble: Linking to Mumble application %s\n", ret==0?"ok":"failed");
+	}
+#endif
 }
 
 /*

code/client/cl_main.c

@@ -24,6 +24,15 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 #include "client.h"
 #include <limits.h>
 
+#ifdef USE_MUMBLE
+#include "libmumblelink.h"
+#endif
+
+#ifdef USE_MUMBLE
+cvar_t	*cl_useMumble;
+cvar_t	*cl_mumbleScale;
+#endif
+
 cvar_t	*cl_nodelta;
 cvar_t	*cl_debugMove;
 
@@ -121,6 +130,43 @@ void CL_CDDialog( void ) {
 	cls.cddialog = qtrue;	// start it next frame
 }
 
+#ifdef USE_MUMBLE
+static
+void CL_UpdateMumble(void)
+{
+	vec3_t pos, forward, up;
+	float scale = cl_mumbleScale->value;
+	float tmp;
+	
+	if(!cl_useMumble->integer)
+		return;
+
+	// !!! FIXME: not sure if this is even close to correct.
+	AngleVectors( cl.snap.ps.viewangles, forward, NULL, up);
+
+	pos[0] = cl.snap.ps.origin[0] * scale;
+	pos[1] = cl.snap.ps.origin[2] * scale;
+	pos[2] = cl.snap.ps.origin[1] * scale;
+
+	tmp = forward[1];
+	forward[1] = forward[2];
+	forward[2] = tmp;
+
+	tmp = up[1];
+	up[1] = up[2];
+	up[2] = tmp;
+
+	if(cl_useMumble->integer > 1) {
+		fprintf(stderr, "%f %f %f, %f %f %f, %f %f %f\n",
+			pos[0], pos[1], pos[2],
+			forward[0], forward[1], forward[2],
+			up[0], up[1], up[2]);
+	}
+
+	mumble_update_coordinates(pos, forward, up);
+}
+#endif
+
 
 /*
 =======================================================================
@@ -852,6 +898,13 @@ void CL_Disconnect( qboolean showMainMenu ) {
 	*clc.downloadTempName = *clc.downloadName = 0;
 	Cvar_Set( "cl_downloadName", "" );
 
+#ifdef USE_MUMBLE
+	if (cl_useMumble->integer && mumble_islinked()) {
+		Com_Printf("Mumble: Unlinking from Mumble application\n");
+		mumble_unlink();
+	}
+#endif
+
 	if ( clc.demofile ) {
 		FS_FCloseFile( clc.demofile );
 		clc.demofile = 0;
@@ -2306,6 +2359,9 @@ void CL_Frame ( int msec ) {
 	// update audio
 	S_Update();
 
+#ifdef USE_MUMBLE
+	CL_UpdateMumble();
+#endif
 	// advance local effects for next frame
 	SCR_RunCinematic();
 
@@ -2720,6 +2776,11 @@ void CL_Init( void ) {
 
 	cl_guidServerUniq = Cvar_Get ("cl_guidServerUniq", "1", CVAR_ARCHIVE);
 
+#ifdef USE_MUMBLE
+	cl_useMumble = Cvar_Get ("cl_useMumble", "0", CVAR_ARCHIVE);
+	cl_mumbleScale = Cvar_Get ("cl_mumbleScale", "0.0254", CVAR_ARCHIVE);
+#endif
+
 	// userinfo
 	Cvar_Get ("name", "UnnamedPlayer", CVAR_USERINFO | CVAR_ARCHIVE );
 	Cvar_Get ("rate", "3000", CVAR_USERINFO | CVAR_ARCHIVE );

code/client/client.h

@@ -367,6 +367,11 @@ extern	cvar_t	*cl_inGameVideo;
 extern	cvar_t	*cl_lanForcePackets;
 extern	cvar_t	*cl_autoRecordDemo;
 
+#ifdef USE_MUMBLE
+extern	cvar_t	*cl_useMumble;
+extern	cvar_t	*cl_mumbleScale;
+#endif
+
 //=================================================
 
 //

code/client/libmumblelink.c

@@ -0,0 +1,134 @@
+/* libmumblelink.c -- mumble link interface
+
+  Copyright (C) 2008 Ludwig Nussel <ludwig.nussel@suse.de>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+*/
+
+#ifdef WIN32
+#include <windows.h>
+#define uint32_t UINT32
+#else
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#endif
+
+#include <fcntl.h>
+#include <inttypes.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+
+#include "libmumblelink.h"
+
+typedef struct
+{
+	uint32_t uiVersion;
+	uint32_t uiTick;
+	float   fPosition[3];
+	float   fFront[3];
+	float   fTop[3];
+	wchar_t name[256];
+} LinkedMem;
+
+static LinkedMem *lm = NULL;
+
+#ifdef WIN32
+static HANDLE hMapObject = NULL;
+#else
+static int32_t GetTickCount(void)
+{
+	struct timeval tv;
+	gettimeofday(&tv,NULL);
+
+	return tv.tv_usec / 1000 + tv.tv_sec * 1000;
+}
+#endif
+
+int mumble_link(const char* name)
+{
+#ifdef WIN32
+	if(lm)
+		return 0;
+
+	hMapObject = OpenFileMappingW(FILE_MAP_ALL_ACCESS, FALSE, L"MumbleLink");
+	if (hMapObject == NULL)
+		return -1;
+
+	lm = (LinkedMem *) MapViewOfFile(hMapObject, FILE_MAP_ALL_ACCESS, 0, 0, sizeof(LinkedMem));
+	if (lm == NULL) {
+		CloseHandle(hMapObject);
+		hMapObject = NULL;
+		return -1;
+	}
+#else
+	char file[256];
+	int shmfd;
+	if(lm)
+		return 0;
+
+	snprintf(file, sizeof (file), "/MumbleLink.%d", getuid());
+	shmfd = shm_open(file, O_RDWR, S_IRUSR | S_IWUSR);
+	if(shmfd < 0) {
+		return -1;
+	}
+
+	lm = (LinkedMem *) (mmap(NULL, sizeof(LinkedMem), PROT_READ | PROT_WRITE, MAP_SHARED, shmfd,0));
+	if (lm == (void *) (-1)) {
+		lm = NULL;
+	}
+	close(shmfd);
+#endif
+	mbstowcs(lm->name, name, sizeof(lm->name));
+
+	return 0;
+}
+
+void mumble_update_coordinates(float fPosition[3], float fFront[3], float fTop[3])
+{
+	if (!lm)
+		return;
+
+	memcpy(lm->fPosition, fPosition, sizeof(fPosition));
+	memcpy(lm->fFront, fFront, sizeof(fFront));
+	memcpy(lm->fTop, fTop, sizeof(fTop));
+	lm->uiVersion = 1;
+	lm->uiTick = GetTickCount();
+}
+
+void mumble_unlink()
+{
+	if(!lm)
+		return;
+#ifdef WIN32
+	UnmapViewOfFile(lm);
+	CloseHandle(hMapObject);
+	hMapObject = NULL;
+#else
+	munmap(lm, sizeof(LinkedMem));
+#endif
+	lm = NULL;
+}
+
+int mumble_islinked(void)
+{
+	return lm != NULL;
+}

code/client/libmumblelink.h

@@ -0,0 +1,26 @@
+/* libmumblelink.h -- mumble link interface
+
+  Copyright (C) 2008 Ludwig Nussel <ludwig.nussel@suse.de>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+*/
+
+int mumble_link(const char* name);
+int mumble_islinked(void);
+void mumble_update_coordinates(float fPosition[3], float fFront[3], float fTop[3]);
+void mumble_unlink(void);