Mercurial > sdl-ios-xcode
diff src/haptic/darwin/SDL_syshaptic.c @ 2627:265ced2079bd gsoc2008_force_feedback
Proper axes support for darwin haptic.
author | Edgar Simo <bobbens@gmail.com> |
---|---|
date | Wed, 06 Aug 2008 10:26:47 +0000 |
parents | 71a835ee438a |
children | bfbda6c656e5 |
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--- a/src/haptic/darwin/SDL_syshaptic.c Wed Aug 06 10:11:35 2008 +0000 +++ b/src/haptic/darwin/SDL_syshaptic.c Wed Aug 06 10:26:47 2008 +0000 @@ -55,6 +55,7 @@ struct haptic_hwdata { FFDeviceObjectReference device; /* Hardware device. */ + UInt8 axes[3]; }; @@ -275,25 +276,27 @@ * Gets supported features. */ static unsigned int -GetSupportedFeatures(FFDeviceObjectReference device, - int *neffects, int *nplaying, int *naxes) +GetSupportedFeatures(SDL_Haptic* haptic) { HRESULT ret; + FFDeviceObjectReference device; FFCAPABILITIES features; unsigned int supported; Uint32 val; + device = haptic->hwdata->device; + ret = FFDeviceGetForceFeedbackCapabilities(device, &features); if (ret != FF_OK) { SDL_SetError("Haptic: Unable to get device's supported features."); - return 0; + return -1; } supported = 0; /* Get maximum effects. */ - *neffects = features.storageCapacity; - *nplaying = features.playbackCapacity; + haptic->neffects = features.storageCapacity; + haptic->nplaying = features.playbackCapacity; /* Test for effects. */ FF_TEST(FFCAP_ET_CONSTANTFORCE, SDL_HAPTIC_CONSTANT); @@ -316,7 +319,7 @@ else if (ret != FFERR_UNSUPPORTED) { SDL_SetError("Haptic: Unable to get if device supports gain: %s.", FFStrError(ret)); - return 0; + return -1; } /* Checks if supports autocenter. */ @@ -326,16 +329,20 @@ else if (ret != FFERR_UNSUPPORTED) { SDL_SetError("Haptic: Unable to get if device supports autocenter: %s.", FFStrError(ret)); - return 0; + return -1; } /* Check for axes, we have an artificial limit on axes */ - *naxes = ((features.numFfAxes) > 3) ? + haptic->naxes = ((features.numFfAxes) > 3) ? 3 : features.numFfAxes; + /* Actually store the axes we want to use */ + SDL_memcpy( haptic->hwdata->axes, features.ffAxes, haptic->naxes * sizeof(Uint8)); /* Always supported features. */ supported |= SDL_HAPTIC_STATUS; - return supported; + + haptic->supported = supported; + return 0;; } @@ -346,6 +353,7 @@ SDL_SYS_HapticOpenFromService(SDL_Haptic * haptic, io_service_t service) { HRESULT ret; + int ret2; /* Allocate the hwdata */ haptic->hwdata = (struct haptic_hwdata *) @@ -365,10 +373,8 @@ } /* Get supported features. */ - haptic->supported = GetSupportedFeatures( haptic->hwdata->device, - &haptic->neffects, &haptic->nplaying, - &haptic->naxes ); - if (haptic->supported == 0) { /* Error since device supports nothing. */ + ret2 = GetSupportedFeatures( haptic ); + if (haptic->supported < 0) { goto open_err; } @@ -622,12 +628,12 @@ SDL_OutOfMemory(); return -1; } - axes[0] = FFJOFS_X; /* Always at least one axis. */ + axes[0] = haptic->hwdata->axes[0]; /* Always at least one axis. */ if (dest->cAxes > 1) { - axes[1] = FFJOFS_Y; + axes[1] = haptic->hwdata->axes[1]; } if (dest->cAxes > 2) { - axes[2] = FFJOFS_Z; + axes[2] = haptic->hwdata->axes[2]; } dest->rgdwAxes = axes; }