| 1 |
/* RCSid $Id$ */ |
| 2 |
/* |
| 3 |
* RtraceSimulManager.h |
| 4 |
* |
| 5 |
* Rtrace simulation manager class declaration (along with base class) |
| 6 |
* Enqueuing rays will block caller iff #rays >= ThreadsAvail() |
| 7 |
* Reporting call-backs made from EnqueBundle() and FlushQueue() |
| 8 |
* |
| 9 |
* Created by Greg Ward on 11/10/22. |
| 10 |
*/ |
| 11 |
|
| 12 |
#ifndef RtraceSimulManager_h |
| 13 |
#define RtraceSimulManager_h |
| 14 |
|
| 15 |
#include "ray.h" |
| 16 |
|
| 17 |
extern char * octname; // global octree name |
| 18 |
|
| 19 |
/// Ray reporting callback method |
| 20 |
typedef void RayReportCall(RAY *r, void *cd); |
| 21 |
|
| 22 |
/// Multi-threaded simulation manager base class |
| 23 |
class RadSimulManager { |
| 24 |
int nThreads; // number of active threads |
| 25 |
public: |
| 26 |
RadSimulManager(const char *octn = NULL) { |
| 27 |
LoadOctree(octn); |
| 28 |
nThreads = 1; |
| 29 |
} |
| 30 |
~RadSimulManager() { |
| 31 |
Cleanup(); |
| 32 |
} |
| 33 |
/// Load octree and prepare renderer |
| 34 |
bool LoadOctree(const char *octn); |
| 35 |
/// Set number of computation threads (0 => #cores) |
| 36 |
int SetThreadCount(int nt = 0); |
| 37 |
/// Check thread count (1 means no multi-threading) |
| 38 |
int NThreads() const { |
| 39 |
return nThreads; |
| 40 |
} |
| 41 |
/// How many threads are currently unoccupied? |
| 42 |
int ThreadsAvailable() const; |
| 43 |
/// Are we ready? |
| 44 |
bool Ready() const { |
| 45 |
return (octname && nsceneobjs > 0); |
| 46 |
} |
| 47 |
/// Close octree, free data, return status |
| 48 |
int Cleanup(); |
| 49 |
}; |
| 50 |
|
| 51 |
/// Flags to control rendering operations |
| 52 |
enum {RTdoFIFO=1, RTtraceSources=2, RTlimDist=4, RTimmIrrad=8, RTmask=15}; |
| 53 |
|
| 54 |
/// rtrace-like simulation manager (at most one such object) |
| 55 |
class RtraceSimulManager : public RadSimulManager { |
| 56 |
RayReportCall * cookedCall; // callback for cooked primary rays |
| 57 |
void * ccData; // client data for cooked primary rays |
| 58 |
RayReportCall * traceCall; // call for every ray in tree |
| 59 |
void * tcData; // client data for traced rays |
| 60 |
int curFlags; // current operating flags |
| 61 |
// Call-back for global ray-tracing context |
| 62 |
static void RTracer(RAY *r); |
| 63 |
// Check for changes to render flags, etc. |
| 64 |
bool UpdateMode(); |
| 65 |
protected: |
| 66 |
RNUMBER lastRayID; // last ray ID assigned |
| 67 |
public: |
| 68 |
int rtFlags; // operation (RT*) flags |
| 69 |
RtraceSimulManager(RayReportCall *cb = NULL, void *cd = NULL, |
| 70 |
const char *octn = NULL) : RadSimulManager(octn) { |
| 71 |
lastRayID = 0; |
| 72 |
rtFlags = curFlags = 0; |
| 73 |
SetCookedCall(cb, cd); |
| 74 |
traceCall = NULL; tcData = NULL; |
| 75 |
} |
| 76 |
~RtraceSimulManager() {} |
| 77 |
/// Add ray bundle to queue w/ optional 1st ray ID |
| 78 |
int EnqueueBundle(const FVECT orig_direc[], int n, |
| 79 |
RNUMBER rID0 = 0); |
| 80 |
/// Enqueue a single ray w/ optional ray ID |
| 81 |
bool EnqueueRay(const FVECT org, const FVECT dir, |
| 82 |
RNUMBER rID = 0) { |
| 83 |
if (dir == org+1) |
| 84 |
return EnqueueBundle((const FVECT *)org, 1, rID); |
| 85 |
FVECT orgdir[2]; |
| 86 |
VCOPY(orgdir[0], org); VCOPY(orgdir[1], dir); |
| 87 |
return EnqueueBundle(orgdir, 1, rID); |
| 88 |
} |
| 89 |
/// Set/change cooked ray callback & FIFO flag |
| 90 |
void SetCookedCall(RayReportCall *cb, void *cd = NULL) { |
| 91 |
if (cookedCall && (cookedCall != cb) | (ccData != cd)) |
| 92 |
FlushQueue(); |
| 93 |
cookedCall = cb; |
| 94 |
ccData = cd; |
| 95 |
} |
| 96 |
/// Set/change trace callback |
| 97 |
void SetTraceCall(RayReportCall *cb, void *cd = NULL) { |
| 98 |
traceCall = cb; |
| 99 |
tcData = cd; |
| 100 |
} |
| 101 |
/// Are we ready? |
| 102 |
bool Ready() const { |
| 103 |
return (cookedCall != NULL) | (traceCall != NULL) && |
| 104 |
RadSimulManager::Ready(); |
| 105 |
} |
| 106 |
/// Finish pending rays and complete callbacks |
| 107 |
bool FlushQueue(); |
| 108 |
/// Close octree, free data, return status |
| 109 |
int Cleanup() { |
| 110 |
SetCookedCall(NULL); |
| 111 |
SetTraceCall(NULL); |
| 112 |
rtFlags = 0; |
| 113 |
UpdateMode(); |
| 114 |
lastRayID = 0; |
| 115 |
return RadSimulManager::Cleanup(); |
| 116 |
} |
| 117 |
}; |
| 118 |
|
| 119 |
/// Determine if vector is all zeroes |
| 120 |
inline bool |
| 121 |
IsZeroVec(const FVECT vec) |
| 122 |
{ |
| 123 |
return (vec[0] == 0.0) & (vec[1] == 0.0) & (vec[2] == 0.0); |
| 124 |
} |
| 125 |
|
| 126 |
#endif /* RtraceSimulManager_h */ |
