Tha_14/tomato-testing
1
0
Fork 0
forked from Green-Sky/tomato
Code Pull Requests Actions Packages Releases Activity

cache the localtime result in the message

Browse Source 
localtime uses global state AND spams allocations like cazy
This commit is contained in:
Green Sky 2024-03-12 18:04:02 +01:00
parent aaf8c6adc1
commit 719400068a
No known key found for this signature in database
1 changed files with 37 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
src/chat_gui4.cpp
View File

@ -35,6 +35,16 @@ namespace Components {
float fade {1.f};
};
struct ConvertedTimeCache {
// calling localtime is expensive af
int tm_year {0};
int tm_yday {0};
int tm_mon {0};
int tm_mday {0};
int tm_hour {0};
int tm_min {0};
};
} // Components
static constexpr float lerp(float a, float b, float t) {
@ -324,7 +334,8 @@ float ChatGui4::render(float time_delta) {
//tmp_view.use<Message::Components::Timestamp>();
//tmp_view.each([&](const Message3 e, Message::Components::ContactFrom& c_from, Message::Components::ContactTo& c_to, Message::Components::Timestamp ts
//) {
uint64_t prev_ts {0};
//uint64_t prev_ts {0};
Components::ConvertedTimeCache prev_time {};
auto tmp_view = msg_reg.view<Message::Components::Timestamp>();
for (auto view_it = tmp_view.rbegin(), view_last = tmp_view.rend(); view_it != view_last; view_it++) {
const Message3 e = *view_it;
@ -342,15 +353,12 @@ float ChatGui4::render(float time_delta) {
// TODO: why?
ImGui::TableNextRow(0, TEXT_BASE_HEIGHT);
{ // check if date changed
// TODO: find defined ways of casting to time_t
std::time_t prev = prev_ts / 1000;
std::time_t next = ts.ts / 1000;
std::tm prev_tm = *std::localtime(&prev);
std::tm next_tm = *std::localtime(&next);
if (msg_reg.all_of<Components::ConvertedTimeCache>(e)) { // check if date changed
// TODO: move conversion up?
const auto& next_time = msg_reg.get<Components::ConvertedTimeCache>(e);
if (
prev_tm.tm_yday != next_tm.tm_yday ||
prev_tm.tm_year != next_tm.tm_year // making sure
prev_time.tm_yday != next_time.tm_yday ||
prev_time.tm_year != next_time.tm_year // making sure
) {
// name
if (ImGui::TableNextColumn()) {
@ -359,14 +367,14 @@ float ChatGui4::render(float time_delta) {
// msg
if (ImGui::TableNextColumn()) {
ImGui::TextDisabled("DATE CHANGED from %d.%d.%d to %d.%d.%d",
1900+prev_tm.tm_year, 1+prev_tm.tm_mon, prev_tm.tm_mday,
1900+next_tm.tm_year, 1+next_tm.tm_mon, next_tm.tm_mday
1900+prev_time.tm_year, 1+prev_time.tm_mon, prev_time.tm_mday,
1900+next_time.tm_year, 1+next_time.tm_mon, next_time.tm_mday
);
}
ImGui::TableNextRow(0, TEXT_BASE_HEIGHT);
}
prev_ts = ts.ts;
prev_time = next_time;
}
@ -519,12 +527,24 @@ float ChatGui4::render(float time_delta) {
// ts
if (ImGui::TableNextColumn()) {
auto time = std::chrono::system_clock::to_time_t(
std::chrono::time_point<std::chrono::system_clock, std::chrono::milliseconds>{std::chrono::milliseconds{ts.ts}}
);
auto localtime = std::localtime(&time);
if (!msg_reg.all_of<Components::ConvertedTimeCache>(e)) {
auto time = std::chrono::system_clock::to_time_t(
std::chrono::time_point<std::chrono::system_clock, std::chrono::milliseconds>{std::chrono::milliseconds{ts.ts}}
);
auto localtime = std::localtime(&time);
msg_reg.emplace<Components::ConvertedTimeCache>(
e,
localtime->tm_year,
localtime->tm_yday,
localtime->tm_mon,
localtime->tm_mday,
localtime->tm_hour,
localtime->tm_min
);
}
const auto& ctc = msg_reg.get<Components::ConvertedTimeCache>(e);
ImGui::Text("%.2d:%.2d", localtime->tm_hour, localtime->tm_min);
ImGui::Text("%.2d:%.2d", ctc.tm_hour, ctc.tm_min);
}
// extra