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https://github.com/citra-mirror/citra.git
synced 2024-08-20 18:33:24 +02:00
service/cam: Implement Vsync interrupt callbacks
According to HW tests, this vsync event is signaled for activated cameras at about the same frequency as the frame rate. The last 5 vsync timings are recorded (in microseconds) and can be retrieved with the service function. Also, corrected the default frame_rate to 15, according to HW test. This should fix the missing camera images in certain games.
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cd46e62ad4
commit
eced511382
@ -60,6 +60,7 @@ void Module::PortConfig::Clear() {
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completion_event->Clear();
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buffer_error_interrupt_event->Clear();
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vsync_interrupt_event->Clear();
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vsync_timings.clear();
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is_receiving = false;
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is_active = false;
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is_pending_receiving = false;
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@ -133,6 +134,27 @@ void Module::CompletionEventCallBack(u64 port_id, s64) {
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port.completion_event->Signal();
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}
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static constexpr std::size_t MaxVsyncTimings = 5;
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void Module::VsyncInterruptEventCallBack(u64 port_id, s64 cycles_late) {
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PortConfig& port = ports[port_id];
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const CameraConfig& camera = cameras[port.camera_id];
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if (!port.is_active) {
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return;
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}
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port.vsync_timings.emplace_front(system.CoreTiming().GetGlobalTimeUs().count());
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if (port.vsync_timings.size() > MaxVsyncTimings) {
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port.vsync_timings.pop_back();
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}
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port.vsync_interrupt_event->Signal();
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system.CoreTiming().ScheduleEvent(
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msToCycles(LATENCY_BY_FRAME_RATE[static_cast<int>(camera.frame_rate)]) - cycles_late,
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vsync_interrupt_event_callback, port_id);
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}
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void Module::StartReceiving(int port_id) {
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PortConfig& port = ports[port_id];
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port.is_receiving = true;
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@ -173,6 +195,9 @@ void Module::ActivatePort(int port_id, int camera_id) {
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}
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ports[port_id].is_active = true;
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ports[port_id].camera_id = camera_id;
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system.CoreTiming().ScheduleEvent(
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msToCycles(LATENCY_BY_FRAME_RATE[static_cast<int>(cameras[camera_id].frame_rate)]),
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vsync_interrupt_event_callback, port_id);
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}
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template <int max_index>
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@ -631,6 +656,7 @@ void Module::Interface::Activate(Kernel::HLERequestContext& ctx) {
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cam->ports[i].is_busy = false;
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}
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cam->ports[i].is_active = false;
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cam->system.CoreTiming().UnscheduleEvent(cam->vsync_interrupt_event_callback, i);
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}
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rb.Push(RESULT_SUCCESS);
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} else if (camera_select[0] && camera_select[1]) {
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@ -860,6 +886,33 @@ void Module::Interface::SynchronizeVsyncTiming(Kernel::HLERequestContext& ctx) {
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camera_select1, camera_select2);
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}
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void Module::Interface::GetLatestVsyncTiming(Kernel::HLERequestContext& ctx) {
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IPC::RequestParser rp(ctx, 0x2A, 2, 0);
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const PortSet port_select(rp.Pop<u8>());
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const u32 count = rp.Pop<u32>();
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if (!port_select.IsSingle() || count > MaxVsyncTimings) {
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 2);
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rb.Push(ERROR_OUT_OF_RANGE);
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rb.PushStaticBuffer({}, 0);
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return;
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}
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IPC::RequestBuilder rb = rp.MakeBuilder(1, 2);
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rb.Push(RESULT_SUCCESS);
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std::vector<u8> out(count * sizeof(s64_le));
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std::size_t offset = 0;
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for (const s64_le timing : cam->ports[port_select.m_val].vsync_timings) {
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std::memcpy(out.data() + offset * sizeof(timing), &timing, sizeof(timing));
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offset++;
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if (offset >= count) {
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break;
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}
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}
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rb.PushStaticBuffer(out, 0);
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}
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void Module::Interface::GetStereoCameraCalibrationData(Kernel::HLERequestContext& ctx) {
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IPC::RequestBuilder rb = IPC::RequestParser(ctx, 0x2B, 0, 0).MakeBuilder(17, 0);
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@ -1032,6 +1085,10 @@ Module::Module(Core::System& system) : system(system) {
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completion_event_callback = system.CoreTiming().RegisterEvent(
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"CAM::CompletionEventCallBack",
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[this](u64 userdata, s64 cycles_late) { CompletionEventCallBack(userdata, cycles_late); });
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vsync_interrupt_event_callback = system.CoreTiming().RegisterEvent(
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"CAM::VsyncInterruptEventCallBack", [this](u64 userdata, s64 cycles_late) {
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VsyncInterruptEventCallBack(userdata, cycles_late);
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});
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}
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Module::~Module() {
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@ -5,6 +5,7 @@
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#pragma once
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#include <array>
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#include <deque>
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#include <future>
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#include <memory>
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#include <vector>
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@ -616,6 +617,21 @@ public:
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*/
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void SynchronizeVsyncTiming(Kernel::HLERequestContext& ctx);
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/**
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* Gets the vsync timing record of the specified camera for the specified number of signals.
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* Inputs:
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* 0: 0x002A0080
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* 1: Port
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* 2: Number of timings to get
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* 64: ((PastTimings * 8) << 14) | 2
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* 65: s64* TimingsOutput
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* Outputs:
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* 0: 0x002A0042
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* 1: ResultCode
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* 2-3: Output static buffer
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*/
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void GetLatestVsyncTiming(Kernel::HLERequestContext& ctx);
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/**
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* Returns calibration data relating the outside cameras to each other, for use in AR
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* applications.
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@ -716,6 +732,7 @@ public:
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private:
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void CompletionEventCallBack(u64 port_id, s64);
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void VsyncInterruptEventCallBack(u64 port_id, s64 cycles_late);
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// Starts a receiving process on the specified port. This can only be called when is_busy = true
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// and is_receiving = false.
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@ -744,7 +761,7 @@ private:
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std::unique_ptr<Camera::CameraInterface> impl;
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std::array<ContextConfig, 2> contexts;
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int current_context{0};
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FrameRate frame_rate{FrameRate::Rate_5};
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FrameRate frame_rate{FrameRate::Rate_15};
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};
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struct PortConfig {
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@ -773,6 +790,8 @@ private:
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std::shared_ptr<Kernel::Event> buffer_error_interrupt_event;
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std::shared_ptr<Kernel::Event> vsync_interrupt_event;
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std::deque<s64> vsync_timings;
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std::future<std::vector<u16>> capture_result; // will hold the received frame.
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Kernel::Process* dest_process{nullptr};
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VAddr dest{0}; // the destination address of the receiving process
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@ -787,6 +806,7 @@ private:
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std::array<CameraConfig, NumCameras> cameras;
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std::array<PortConfig, 2> ports;
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Core::TimingEventType* completion_event_callback;
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Core::TimingEventType* vsync_interrupt_event_callback;
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std::atomic<bool> is_camera_reload_pending{false};
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};
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@ -50,7 +50,7 @@ CAM_C::CAM_C(std::shared_ptr<Module> cam) : Module::Interface(std::move(cam), "c
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{0x00270140, nullptr, "SetAutoWhiteBalanceWindow"},
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{0x00280080, nullptr, "SetNoiseFilter"},
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{0x00290080, &CAM_C::SynchronizeVsyncTiming, "SynchronizeVsyncTiming"},
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{0x002A0080, nullptr, "GetLatestVsyncTiming"},
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{0x002A0080, &CAM_C::GetLatestVsyncTiming, "GetLatestVsyncTiming"},
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{0x002B0000, &CAM_C::GetStereoCameraCalibrationData, "GetStereoCameraCalibrationData"},
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{0x002C0400, nullptr, "SetStereoCameraCalibrationData"},
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{0x002D00C0, nullptr, "WriteRegisterI2c"},
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@ -50,7 +50,7 @@ CAM_S::CAM_S(std::shared_ptr<Module> cam) : Module::Interface(std::move(cam), "c
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{0x00270140, nullptr, "SetAutoWhiteBalanceWindow"},
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{0x00280080, nullptr, "SetNoiseFilter"},
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{0x00290080, &CAM_S::SynchronizeVsyncTiming, "SynchronizeVsyncTiming"},
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{0x002A0080, nullptr, "GetLatestVsyncTiming"},
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{0x002A0080, &CAM_S::GetLatestVsyncTiming, "GetLatestVsyncTiming"},
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{0x002B0000, &CAM_S::GetStereoCameraCalibrationData, "GetStereoCameraCalibrationData"},
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{0x002C0400, nullptr, "SetStereoCameraCalibrationData"},
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{0x002D00C0, nullptr, "WriteRegisterI2c"},
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@ -50,7 +50,7 @@ CAM_U::CAM_U(std::shared_ptr<Module> cam) : Module::Interface(std::move(cam), "c
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{0x00270140, nullptr, "SetAutoWhiteBalanceWindow"},
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{0x00280080, nullptr, "SetNoiseFilter"},
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{0x00290080, &CAM_U::SynchronizeVsyncTiming, "SynchronizeVsyncTiming"},
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{0x002A0080, nullptr, "GetLatestVsyncTiming"},
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{0x002A0080, &CAM_U::GetLatestVsyncTiming, "GetLatestVsyncTiming"},
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{0x002B0000, &CAM_U::GetStereoCameraCalibrationData, "GetStereoCameraCalibrationData"},
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{0x002C0400, nullptr, "SetStereoCameraCalibrationData"},
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{0x002D00C0, nullptr, "WriteRegisterI2c"},
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