// Assumes that arguments are powers of 2, and that
// grids_per_edge / grids_per_patch_edge = power of 2
void LLSurface::create(const S32 grids_per_edge,
const S32 grids_per_patch_edge,
const LLVector3d &origin_global,
const F32 width)
{
// Initialize various constants for the surface
mGridsPerEdge = grids_per_edge + 1; // Add 1 for the east and north buffer
mOOGridsPerEdge = 1.f / mGridsPerEdge;
mGridsPerPatchEdge = grids_per_patch_edge;
mPatchesPerEdge = (mGridsPerEdge - 1) / mGridsPerPatchEdge;
mNumberOfPatches = mPatchesPerEdge * mPatchesPerEdge;
mMetersPerGrid = width / ((F32)(mGridsPerEdge - 1));
mMetersPerEdge = mMetersPerGrid * (mGridsPerEdge - 1);
// <FS:CR> Aurora Sim
sTextureSize = width;
// </FS:CR> Aurora Sim
mOriginGlobal.setVec(origin_global);
mPVArray.create(mGridsPerEdge, mGridsPerPatchEdge, LLWorld::getInstance()->getRegionScale());
S32 number_of_grids = mGridsPerEdge * mGridsPerEdge;
/////////////////////////////////////
//
// Initialize data arrays for surface
///
mSurfaceZ = new F32[number_of_grids];
mNorm = new LLVector3[number_of_grids];
// Reset the surface to be a flat square grid
for(S32 i=0; i < number_of_grids; i++)
{
// Surface is flat and zero
// Normals all point up
mSurfaceZ[i] = 0.0f;
mNorm[i].setVec(0.f, 0.f, 1.f);
}
mVisiblePatchCount = 0;
///////////////////////
//
// Initialize textures
//
initTextures();
// Has to be done after texture initialization
createPatchData();
}
void MIDI_InitPatch(struct Patch *patch) {
patch->playnote=MIDIplaynote;
patch->stopnote=MIDIstopnote;
patch->changevelocity=MIDIchangevelocity;
patch->changepitch=MIDIchangepitch;
patch->sendrawmidimessage=MIDIsendrawmidimessage;
patch->closePatch=MIDIclosePatch;
patch->changeTrackPan=MIDIchangeTrackPan;
patch->patchdata = createPatchData();
patch->instrument = get_MIDI_instrument();
patch->is_usable = true;
}
