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Add a new HashMap implementation

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Adds a new, cleaned up, HashMap implementation.

* Uses Robin Hood Hashing (https://en.wikipedia.org/wiki/Hash_table#Robin_Hood_hashing).
* Keeps elements in a double linked list for simpler, ordered, iteration.
* Allows keeping iterators for later use in removal (Unlike Map<>, it does not do much
  for performance vs keeping the key, but helps replace old code).
* Uses a more modern C++ iterator API, deprecates the old one.
* Supports custom allocator (in case there is a wish to use a paged one).

This class aims to unify all the associative template usage and replace it by this one:
* Map<> (whereas key order does not matter, which is 99% of cases)
* HashMap<>
* OrderedHashMap<>
* OAHashMap<>
This commit is contained in:
reduz
2022-05-08 10:09:19 +02:00
committed by Rémi Verschelde
parent 9b7e16a6b8
commit 8b7c7f5a75
95 changed files with 1434 additions and 1874 deletions
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17
modules/raycast/raycast_occlusion_cull.cpp
View File

@ -454,10 +454,9 @@ bool RaycastOcclusionCull::Scenario::update(ThreadWorkPool &p_thread_pool) {
next_scene = rtcNewScene(raycast_singleton->ebr_device);
rtcSetSceneBuildQuality(next_scene, RTCBuildQuality(raycast_singleton->build_quality));
const RID *inst_rid = nullptr;
while ((inst_rid = instances.next(inst_rid))) {
OccluderInstance *occ_inst = instances.getptr(*inst_rid);
Occluder *occ = raycast_singleton->occluder_owner.get_or_null(occ_inst->occluder);
for (const KeyValue<RID, OccluderInstance> &E : instances) {
const OccluderInstance *occ_inst = &E.value;
const Occluder *occ = raycast_singleton->occluder_owner.get_or_null(occ_inst->occluder);
if (!occ || !occ_inst->enabled) {
continue;
@ -573,9 +572,8 @@ void RaycastOcclusionCull::set_build_quality(RS::ViewportOcclusionCullingBuildQu
build_quality = p_quality;
const RID *scenario_rid = nullptr;
while ((scenario_rid = scenarios.next(scenario_rid))) {
scenarios[*scenario_rid].dirty = true;
for (KeyValue<RID, Scenario> &K : scenarios) {
K.value.dirty = true;
}
}
@ -596,9 +594,8 @@ RaycastOcclusionCull::RaycastOcclusionCull() {
}
RaycastOcclusionCull::~RaycastOcclusionCull() {
const RID *scenario_rid = nullptr;
while ((scenario_rid = scenarios.next(scenario_rid))) {
Scenario &scenario = scenarios[*scenario_rid];
for (KeyValue<RID, Scenario> &K : scenarios) {
Scenario &scenario = K.value;
if (scenario.commit_thread) {
scenario.commit_thread->wait_to_finish();
memdelete(scenario.commit_thread);