Patch * TerrainPager::GetPatch(const PatchID &patchID)
{
if (patchID.GetI() < 0 || patchID.GetJ() < 0) // reject call
return NULL;
// Check the working set to see if it is loaded
Patch *pPatch = findPatch(patchID);
if (NULL != pPatch)
{
pPatch->IncrementReferenceCount();
return pPatch;
}
// not within the working set.
// go get it.
// get a free slot.
assert(!readyPatchQueue.empty()); // uptil now we just assume that we have a patch pool that is sufficient to our needs.
unsigned int index = readyPatchQueue.front();
readyPatchQueue.pop(); // mark this patch as occupied.
// load the patch into this slot
pPatch = pPatches[index];
pPatch->Reset(); // reset internal values of nbLoadedVertices, currentLoadedLevel.
pPatch->SetID(patchID);
jobManager->RequestFillPatch(*pPatch, utilizeTextures);
// push it onto the list
workingSet.push_back(pPatch);
pPatch->IncrementReferenceCount(); // this one is used.
pPatch->SetIterator(--workingSet.end()); // the iterator of the latest added item.
return pPatch;
}
void TerrainPager::FreePatch(const PatchID &patchID)
{
if (patchID.GetI() < 0 || patchID.GetJ() < 0) // reject call
return;
// Check the working set to see if it is loaded
Patch *pPatch = findPatch(patchID);
assert(NULL != pPatch);
FreePatch(pPatch);
}
void R2D2Audio::play3DAudio(vec3 position)
{
if(_lastPlayTime + _delay < glfwGetTime())
{
_lastPlayTime = glfwGetTime();
GLfloat random = rand() % 3 + 1;
if (random == 0)
_music = _engine->play3D(findPatch("r2d2a"), vec3df(0, 0, 0), false, false, true);
if (random == 1)
_music = _engine->play3D(findPatch("r2d2b"), vec3df(0, 0, 0), false, false, true);
else
_music = _engine->play3D(findPatch("r2d2c"), vec3df(0, 0, 0), false, false, true);
_music->setMinDistance(2.0f);
_music->setPosition(vec3df(position.x, position.y, position.z));
}
}
/*
* The strategy for this goes as follows:
*
* 1) Scan the stack, looking at all return addresses that could go into JIT
* code.
* 2) If an address corresponds to a call site registered by |callSite| during
* the last compilation, remember it.
* 3) Purge the old compiled state and return if there were no active frames of
* this script on the stack.
* 4) Fix up the stack by replacing all saved addresses with the addresses the
* new compiler gives us for the call sites.
*/
bool
Recompiler::recompile()
{
JS_ASSERT(script->hasJITCode());
Vector<PatchableAddress> normalPatches(cx);
Vector<PatchableAddress> ctorPatches(cx);
JSStackFrame *firstCtorFrame = NULL;
JSStackFrame *firstNormalFrame = NULL;
// Find all JIT'd stack frames to account for return addresses that will
// need to be patched after recompilation.
for (VMFrame *f = script->compartment->jaegerCompartment->activeFrame();
f != NULL;
f = f->previous) {
// Scan all frames owned by this VMFrame.
JSStackFrame *end = f->entryfp->prev();
for (JSStackFrame *fp = f->fp(); fp != end; fp = fp->prev()) {
// Remember the latest frame for each type of JIT'd code, so the
// compiler will have a frame to re-JIT from.
if (!firstCtorFrame && fp->script() == script && fp->isConstructing())
firstCtorFrame = fp;
else if (!firstNormalFrame && fp->script() == script && !fp->isConstructing())
firstNormalFrame = fp;
void **addr = fp->addressOfNativeReturnAddress();
if (script->jitCtor && script->jitCtor->isValidCode(*addr)) {
if (!ctorPatches.append(findPatch(script->jitCtor, addr)))
return false;
} else if (script->jitNormal && script->jitNormal->isValidCode(*addr)) {
if (!normalPatches.append(findPatch(script->jitNormal, addr)))
return false;
}
}
void **addr = f->returnAddressLocation();
if (script->jitCtor && script->jitCtor->isValidCode(*addr)) {
if (!ctorPatches.append(findPatch(script->jitCtor, addr)))
return false;
} else if (script->jitNormal && script->jitNormal->isValidCode(*addr)) {
if (!normalPatches.append(findPatch(script->jitNormal, addr)))
return false;
}
}
Vector<CallSite> normalSites(cx);
Vector<CallSite> ctorSites(cx);
if (script->jitNormal && !saveTraps(script->jitNormal, &normalSites))
return false;
if (script->jitCtor && !saveTraps(script->jitCtor, &ctorSites))
return false;
ReleaseScriptCode(cx, script);
if (normalPatches.length() &&
!recompile(firstNormalFrame, normalPatches, normalSites)) {
return false;
}
if (ctorPatches.length() &&
!recompile(firstCtorFrame, ctorPatches, ctorSites)) {
return false;
}
return true;
}
