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| author | Justin Berger <j.david.berger@gmail.com> | 2018-02-23 23:15:31 -0700 |
|---|---|---|
| committer | Justin Berger <j.david.berger@gmail.com> | 2018-02-23 23:30:16 -0700 |
| commit | 9a9a539396c622246a527ed0c12df36edf5ff807 (patch) | |
| tree | 9490c013fd3e73f207b18e5b5d3d8dfb8d0cbac5 /src/survive_vive.c | |
| parent | 99deb0176b02d9a35114fefe951cdea50186a6ee (diff) | |
| download | libsurvive-9a9a539396c622246a527ed0c12df36edf5ff807.tar.gz libsurvive-9a9a539396c622246a527ed0c12df36edf5ff807.tar.bz2 | |
Fixed unaligned access issues
Diffstat (limited to 'src/survive_vive.c')
| -rwxr-xr-x | src/survive_vive.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/src/survive_vive.c b/src/survive_vive.c index 934b5d3..a74d699 100755 --- a/src/survive_vive.c +++ b/src/survive_vive.c @@ -902,8 +902,16 @@ int survive_get_config( char ** config, SurviveViveData * sv, int devno, int ifa /////////////////////////////////////////////////////////////////////////////// #define POP1 (*(readdata++)) -#define POP2 (*(((uint16_t*)((readdata+=2)-2)))) -#define POP4 (*(((uint32_t*)((readdata+=4)-4)))) + + +struct __attribute__((__packed__)) unaligned_16_t { + uint16_t v; +}; +struct __attribute__((__packed__)) unaligned_32_t { + uint32_t v; +}; +#define POP2 ((((( struct unaligned_16_t*)((readdata+=2)-2))))->v) +#define POP4 ((((( struct unaligned_32_t*)((readdata+=4)-4))))->v) void calibrate_acc(SurviveObject* so, FLT* agm) { if (so->acc_bias != NULL) { @@ -1431,7 +1439,7 @@ void survive_data_cb( SurviveUSBInterface * si ) //printf( "%d -> ", size ); for( i = 0; i < 3; i++ ) { - int16_t * acceldata = (int16_t*)readdata; + struct unaligned_16_t * acceldata = (struct unaligned_16_t *)readdata; readdata += 12; uint32_t timecode = POP4; uint8_t code = POP1; @@ -1443,8 +1451,8 @@ void survive_data_cb( SurviveUSBInterface * si ) obj->oldcode = code; //XXX XXX BIG TODO!!! Actually recal gyro data. - FLT agm[9] = { acceldata[0], acceldata[1], acceldata[2], - acceldata[3], acceldata[4], acceldata[5], + FLT agm[9] = { acceldata[0].v, acceldata[1].v, acceldata[2].v, + acceldata[3].v, acceldata[4].v, acceldata[5].v, 0,0,0 }; agm[0]*=(float)(1./8192.0); |