void MeshBase::loadFromObj( const std::string& filename )
{
preProcess();
loadInfoFromObj( filename );
allocateData();
startWritingData();
loadDataFromObj( filename );
computeAabb();
postProcess();
finishWritingData();
}
void processRaycastTask(void* userPtr, void* lsMemory)
{
RaycastTask_LocalStoreMemory* localMemory = (RaycastTask_LocalStoreMemory*)lsMemory;
SpuRaycastTaskDesc* taskDescPtr = (SpuRaycastTaskDesc*)userPtr;
SpuRaycastTaskDesc& taskDesc = *taskDescPtr;
SpuCollisionObjectWrapper* cows = (SpuCollisionObjectWrapper*)taskDesc.spuCollisionObjectsWrappers;
//spu_printf("in processRaycastTask %d\n", taskDesc.numSpuCollisionObjectWrappers);
/* for each object */
RaycastGatheredObjectData gatheredObjectData;
for (int objectId = 0; objectId < taskDesc.numSpuCollisionObjectWrappers; objectId++)
{
//spu_printf("%d / %d\n", objectId, taskDesc.numSpuCollisionObjectWrappers);
/* load initial collision shape */
GatherCollisionObjectAndShapeData (&gatheredObjectData, localMemory, (ppu_address_t)&cows[objectId]);
if (btBroadphaseProxy::isConcave (gatheredObjectData.m_shapeType))
{
SpuRaycastTaskWorkUnitOut tWorkUnitsOut[SPU_RAYCAST_WORK_UNITS_PER_TASK];
for (int rayId = 0; rayId < taskDesc.numWorkUnits; rayId++)
{
tWorkUnitsOut[rayId].hitFraction = 1.0;
}
performRaycastAgainstConcave (&gatheredObjectData, &taskDesc.workUnits[0], &tWorkUnitsOut[0], taskDesc.numWorkUnits, localMemory);
for (int rayId = 0; rayId < taskDesc.numWorkUnits; rayId++)
{
const SpuRaycastTaskWorkUnit& workUnit = taskDesc.workUnits[rayId];
if (tWorkUnitsOut[rayId].hitFraction == 1.0)
continue;
ATTRIBUTE_ALIGNED16(SpuRaycastTaskWorkUnitOut workUnitOut);
dmaLoadRayOutput ((ppu_address_t)workUnit.output, &workUnitOut, 1);
cellDmaWaitTagStatusAll(DMA_MASK(1));
/* XXX Only support taking the closest hit for now */
if (tWorkUnitsOut[rayId].hitFraction < workUnitOut.hitFraction)
{
workUnitOut.hitFraction = tWorkUnitsOut[rayId].hitFraction;
workUnitOut.hitNormal = tWorkUnitsOut[rayId].hitNormal;
}
/* write ray cast data back */
dmaStoreRayOutput ((ppu_address_t)workUnit.output, &workUnitOut, 1);
cellDmaWaitTagStatusAll(DMA_MASK(1));
}
} else if (btBroadphaseProxy::isConvex (gatheredObjectData.m_shapeType)) {
btVector3 objectBoxMin, objectBoxMax;
computeAabb (objectBoxMin, objectBoxMax, (btConvexInternalShape*)gatheredObjectData.m_spuCollisionShape, gatheredObjectData.m_collisionShape, gatheredObjectData.m_shapeType, gatheredObjectData.m_worldTransform);
for (unsigned int rayId = 0; rayId < taskDesc.numWorkUnits; rayId++)
{
const SpuRaycastTaskWorkUnit& workUnit = taskDesc.workUnits[rayId];
btScalar ignored_param = 1.0;
btVector3 ignored_normal;
if (btRayAabb(workUnit.rayFrom, workUnit.rayTo, objectBoxMin, objectBoxMax, ignored_param, ignored_normal))
{
ATTRIBUTE_ALIGNED16(SpuRaycastTaskWorkUnitOut workUnitOut);
SpuRaycastTaskWorkUnitOut tWorkUnitOut;
tWorkUnitOut.hitFraction = 1.0;
performRaycastAgainstConvex (&gatheredObjectData, workUnit, &tWorkUnitOut, localMemory);
if (tWorkUnitOut.hitFraction == 1.0)
continue;
dmaLoadRayOutput ((ppu_address_t)workUnit.output, &workUnitOut, 1);
cellDmaWaitTagStatusAll(DMA_MASK(1));
/* XXX Only support taking the closest hit for now */
if (tWorkUnitOut.hitFraction < workUnitOut.hitFraction)
{
workUnitOut.hitFraction = tWorkUnitOut.hitFraction;
workUnitOut.hitNormal = tWorkUnitOut.hitNormal;
/* write ray cast data back */
dmaStoreRayOutput ((ppu_address_t)workUnit.output, &workUnitOut, 1);
cellDmaWaitTagStatusAll(DMA_MASK(1));
}
}
}
} else if (btBroadphaseProxy::isCompound (gatheredObjectData.m_shapeType)) {
for (unsigned int rayId = 0; rayId < taskDesc.numWorkUnits; rayId++)
{
const SpuRaycastTaskWorkUnit& workUnit = taskDesc.workUnits[rayId];
ATTRIBUTE_ALIGNED16(SpuRaycastTaskWorkUnitOut workUnitOut);
SpuRaycastTaskWorkUnitOut tWorkUnitOut;
tWorkUnitOut.hitFraction = 1.0;
performRaycastAgainstCompound (&gatheredObjectData, workUnit, &tWorkUnitOut, localMemory);
if (tWorkUnitOut.hitFraction == 1.0)
continue;
dmaLoadRayOutput ((ppu_address_t)workUnit.output, &workUnitOut, 1);
cellDmaWaitTagStatusAll(DMA_MASK(1));
/* XXX Only support taking the closest hit for now */
if (tWorkUnitOut.hitFraction < workUnitOut.hitFraction)
{
workUnitOut.hitFraction = tWorkUnitOut.hitFraction;
workUnitOut.hitNormal = tWorkUnitOut.hitNormal;
}
/* write ray cast data back */
dmaStoreRayOutput ((ppu_address_t)workUnit.output, &workUnitOut, 1);
cellDmaWaitTagStatusAll(DMA_MASK(1));
}
}
}
}