587 lines
24 KiB
C++
587 lines
24 KiB
C++
#include "Plot_Core.h"
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#include "Plot_Frame_Pipeline.h"
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#include "../architecture/Renderable.h"
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#include "../architecture/Render_Time.h"
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#include "../architecture/Update_Completion.h"
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#include "../base/global.h"
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#include "../render/Canvas.h"
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#include <algorithm>
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#include <memory>
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#include <utility>
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namespace renderive {
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class Plot_Core_Private;
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struct Frame_Render_Job {
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std::shared_ptr<Plot_Core_Private> owner;
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std::uint64_t generation{};
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Plot_Frame_Lease frame_lease;
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Plot_Frame* buffer{};
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std::shared_ptr<Frame_Lifecycle_Record> lifecycle;
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Plot_Render_Snapshot render_snapshot;
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Renderable_Tree_Snapshot renderables;
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std::shared_ptr<Frame_Worker_Stats> worker_stat;
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};
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class Plot_Core_Private final : public std::enable_shared_from_this<Plot_Core_Private> {
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public:
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explicit Plot_Core_Private(std::unique_ptr<Refresh_Strategy> s)
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: strategy(std::move(s)) {}
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~Plot_Core_Private() = default;
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bool render_enabled() const {
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return rendering.load(std::memory_order_acquire);
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}
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bool destroying() const {
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return !context || context->destroying.load(std::memory_order_acquire);
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}
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Refresh_Runtime_Snapshot refresh_runtime_snapshot(std::uint64_t now_ns = steady_now_ns()) const {
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return {
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render_enabled(),
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destroying(),
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pipeline.has_unrendered_edit(),
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pipeline.render_job_state != Frame_Job_State::Idle,
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pipeline.middle_frame_ready(),
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pipeline.painting_frame_in_use(),
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now_ns
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};
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}
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bool submit_render_once() {
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if (!rendering.load(std::memory_order_acquire) || destroying())
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return false;
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if (!root)
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return false;
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Size size{
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context->render_width.load(std::memory_order_acquire),
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context->render_height.load(std::memory_order_acquire)
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};
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if (size.empty())
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return false;
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auto frame_lease = pipeline.try_acquire_render_frame();
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if (!frame_lease)
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return false;
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Plot_Frame* buffer = frame_lease.frame;
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cancel_update_states(buffer->presented_update_states);
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std::uint64_t render_role_enter_ns = buffer->metadata ? buffer->metadata->render_role_enter_ns : 0;
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buffer->metadata = std::make_shared<Frame_Lifecycle_Record>();
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auto frame_record = buffer->metadata;
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Frame_Lifecycle_Record& frame = *frame_record;
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std::uint64_t submit_time = steady_now_ns();
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frame.frame_id = ++next_frame_id;
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frame.input_version = pipeline.edit_version.load(std::memory_order_acquire);
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frame.render_request_ns = submit_time;
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frame.render_role_enter_ns = render_role_enter_ns ? render_role_enter_ns : submit_time;
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frame.core_data_time_ns = latest_input_time_ns.load(std::memory_order_acquire);
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frame.raw_input_count = pending_input_count.exchange(0, std::memory_order_acq_rel);
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frame.pixel_width = static_cast<std::uint64_t>(size.width);
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frame.pixel_height = static_cast<std::uint64_t>(size.height);
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frame.viewport_version = context->viewport_version.load(std::memory_order_acquire);
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frame.wait_21_ns = submit_time > frame.render_role_enter_ns ? submit_time - frame.render_role_enter_ns : 0;
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frame.render_begin_ns = submit_time;
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std::uint64_t previous_render_state_version = pipeline.rendered_edit_version;
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pipeline.render_job_state = Frame_Job_State::Running;
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pipeline.rendered_edit_version = frame.input_version;
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auto job = std::make_shared<Frame_Render_Job>();
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job->owner = shared_from_this();
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job->generation = generation.load(std::memory_order_acquire);
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job->frame_lease = std::move(frame_lease);
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job->buffer = buffer;
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job->lifecycle = frame_record;
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job->worker_stat = std::make_shared<Frame_Worker_Stats>();
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job->render_snapshot.context = context;
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job->render_snapshot.size = size;
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job->render_snapshot.background_color = background_color();
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job->render_snapshot.previous_frame_time_ns = previous_frame_time_ns;
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job->render_snapshot.frame_time_ns = submit_time;
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job->render_snapshot.frame_metadata = frame_record.get();
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job->render_snapshot.frame_update_states = &buffer->presented_update_states;
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previous_frame_time_ns = submit_time;
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job->renderables = renderable_tree_snapshot();
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auto& scheduler = Global::instance()->render_scheduler();
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bool submitted = scheduler.try_submit_render_task(Render_Executor_Task{
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plot_execution_id,
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frame.frame_id,
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Render_Task_Kind::Frame,
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Task{},
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[job](tf::Taskflow& taskflow, tf::Task entry, tf::Task exit) {
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auto prepare = taskflow.emplace([job]() {
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job->owner->prepare_frame_job(job);
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});
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auto draw = taskflow.emplace([job]() {
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job->owner->draw_frame_job(job);
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});
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auto finalize = taskflow.emplace([job]() {
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job->owner->finalize_frame_job(job);
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});
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entry.precede(prepare);
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prepare.precede(draw);
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draw.precede(finalize);
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finalize.precede(exit);
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},
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Task([job]() {
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Global::instance()->render_scheduler().post([job]() {
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job->owner->complete_frame_job(job);
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});
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}),
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job->worker_stat,
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3,
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true
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});
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if (submitted)
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return true;
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frame.outcome = Frame_Outcome::Worker_Budget_Dropped;
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frame.worker.rejected_task_count++;
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job->frame_lease.reset();
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pipeline.rendered_edit_version = previous_render_state_version;
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pipeline.render_job_state = Frame_Job_State::Idle;
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collect_frame(frame_record);
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trigger_refresh_strategy(Refresh_Trigger::Render_Finished, &frame);
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return false;
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}
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static bool frame_job_valid(const std::shared_ptr<Frame_Render_Job>& job) {
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return job && job->buffer && job->lifecycle && job->render_snapshot.context && !job->render_snapshot.destroying();
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}
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void prepare_frame_job(const std::shared_ptr<Frame_Render_Job>& job) {
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if (!frame_job_valid(job))
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return;
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Frame_Lifecycle_Record& frame = *job->lifecycle;
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frame.prepare_begin_ns = steady_now_ns();
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for (const auto& node : job->renderables) {
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const auto& renderable = node.renderable;
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if (!renderable || !renderable->should_prepare())
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continue;
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renderable->prepare_data(job->render_snapshot);
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++frame.prepared_output_count;
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}
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frame.prepare_end_ns = steady_now_ns();
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job->render_snapshot.context->first_prepare_data.store(false, std::memory_order_release);
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}
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void draw_frame_job(const std::shared_ptr<Frame_Render_Job>& job) {
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if (!frame_job_valid(job) || !job->lifecycle->prepare_end_ns)
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return;
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Frame_Lifecycle_Record& frame = *job->lifecycle;
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job->buffer->image.resize(job->render_snapshot.size.width, job->render_snapshot.size.height);
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job->buffer->image.fill(job->render_snapshot.background_color);
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Canvas canvas(job->buffer->image);
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frame.draw_begin_ns = steady_now_ns();
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if (!job->renderables.empty() && job->renderables.front().renderable)
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job->renderables.front().renderable->render_tree_snapshot(canvas, job->render_snapshot, job->renderables, 0);
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frame.draw_end_ns = steady_now_ns();
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frame.render_end_ns = steady_now_ns();
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}
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void finalize_frame_job(const std::shared_ptr<Frame_Render_Job>& job) {
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if (!frame_job_valid(job) || !job->lifecycle->render_end_ns)
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return;
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Frame_Lifecycle_Record& frame = *job->lifecycle;
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job->buffer->version.store(frame.frame_id, std::memory_order_release);
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for (const auto& update_state : job->buffer->presented_update_states) {
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if (update_state)
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update_state->complete_until(Update_Stage::Rendered);
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}
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}
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void execute_frame_job(const std::shared_ptr<Frame_Render_Job>& job) {
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if (!job || !job->buffer || !job->lifecycle || !job->render_snapshot.context || job->render_snapshot.destroying())
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return;
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prepare_frame_job(job);
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draw_frame_job(job);
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finalize_frame_job(job);
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}
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void complete_frame_job(const std::shared_ptr<Frame_Render_Job>& job) {
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if (!job || !job->buffer || !job->lifecycle)
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return;
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Frame_Lifecycle_Record& frame = *job->lifecycle;
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if (job->worker_stat)
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frame.worker = *job->worker_stat;
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bool valid_generation = job->generation == generation.load(std::memory_order_acquire);
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bool valid_context = !destroying();
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if (!valid_generation || !valid_context || !frame.render_end_ns) {
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job->frame_lease.reset();
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frame.outcome = Frame_Outcome::Cancelled;
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pipeline.render_job_state = Frame_Job_State::Idle;
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supersede_update_states(job->buffer->presented_update_states);
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trigger_refresh_strategy(Refresh_Trigger::Render_Finished, &frame);
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return;
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}
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auto publish_result = pipeline.try_publish_rendered_frame(std::move(job->frame_lease), steady_now_ns());
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if (publish_result.superseded_frame_record) {
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trigger_refresh_strategy(Refresh_Trigger::Frame_Returned, publish_result.superseded_frame_record.get());
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collect_frame(publish_result.superseded_frame_record);
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}
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if (publish_result.dropped_frame_record) {
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collect_frame(publish_result.dropped_frame_record);
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}
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pipeline.render_job_state = Frame_Job_State::Idle;
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if (publish_result.request_present)
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request_present(publish_result.dirty_rect);
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trigger_refresh_strategy(Refresh_Trigger::Render_Finished, &frame);
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}
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void post_scheduler_action(Task task) {
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if (!task)
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return;
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auto guard = context;
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auto action = [guard, task = std::move(task)]() mutable {
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if (!guard || guard->destroying.load(std::memory_order_acquire))
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return;
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task();
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};
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auto& scheduler = Global::instance()->render_scheduler();
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if (scheduler.is_scheduler_thread()) {
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action();
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return;
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}
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scheduler.post(std::move(action));
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}
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void trigger_refresh_strategy(Refresh_Trigger trigger, Frame_Lifecycle_Record* frame = nullptr) {
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if (!strategy)
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return;
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std::uint64_t now_ns = steady_now_ns();
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Refresh_Runtime_Snapshot runtime = refresh_runtime_snapshot(now_ns);
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Refresh_Action action = strategy->on_trigger(trigger, runtime, frame);
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apply_refresh_action(action, runtime);
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}
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void notify_input_changed(std::uint64_t now_ns) {
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if (!strategy)
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return;
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Refresh_Runtime_Snapshot runtime = refresh_runtime_snapshot(now_ns);
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Refresh_Action action = strategy->on_trigger(Refresh_Trigger::Input_Dirty, runtime, nullptr);
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apply_refresh_action(action, runtime);
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}
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void notify_started() {
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if (!strategy_started) {
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strategy_started = true;
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trigger_refresh_strategy(Refresh_Trigger::Started);
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}
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else {
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trigger_refresh_strategy(Refresh_Trigger::Input_Dirty);
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}
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}
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void notify_paused() {
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invalidate_refresh_deadline();
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if (!strategy_started)
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return;
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strategy_started = false;
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trigger_refresh_strategy(Refresh_Trigger::Paused);
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}
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void notify_frame_returned(std::shared_ptr<Frame_Lifecycle_Record> frame) {
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if (!frame)
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return;
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trigger_refresh_strategy(Refresh_Trigger::Frame_Returned, frame.get());
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collect_frame(frame);
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}
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void apply_refresh_action(Refresh_Action action, const Refresh_Runtime_Snapshot& runtime) {
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if (action.request_paint) {
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auto update_result = pipeline.request_present(steady_now_ns());
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if (update_result.request_present)
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request_present(update_result.dirty_rect);
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}
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if (action.try_render) {
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invalidate_refresh_deadline();
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submit_render_once();
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return;
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}
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if (action.render_deadline_ns) {
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schedule_refresh_deadline(action.render_deadline_ns);
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return;
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}
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if (!runtime.enabled || runtime.destroying || !runtime.dirty)
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invalidate_refresh_deadline();
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}
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void schedule_refresh_deadline(std::uint64_t deadline_ns) {
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if (deadline_ns <= steady_now_ns()) {
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invalidate_refresh_deadline();
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trigger_refresh_strategy(Refresh_Trigger::Timer_Fired);
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return;
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}
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if (scheduled_refresh_deadline_ns && scheduled_refresh_deadline_ns <= deadline_ns)
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return;
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scheduled_refresh_deadline_ns = deadline_ns;
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std::uint64_t generation = ++refresh_deadline_generation;
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auto guard = context;
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auto self = shared_from_this();
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Global::instance()->render_scheduler().post_at(deadline_ns, [guard, self, generation, deadline_ns]() {
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if (!guard || guard->destroying.load(std::memory_order_acquire))
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return;
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if (self->refresh_deadline_generation != generation || self->scheduled_refresh_deadline_ns != deadline_ns)
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return;
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self->scheduled_refresh_deadline_ns = 0;
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self->trigger_refresh_strategy(Refresh_Trigger::Timer_Fired);
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});
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}
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void invalidate_refresh_deadline() {
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scheduled_refresh_deadline_ns = 0;
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++refresh_deadline_generation;
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}
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void dispatch_event(const Event& event) {
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if (!root)
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return;
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switch (event.type) {
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case Event_Type::Pointer_Move: {
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const auto& pointer_event = static_cast<const Pointer_Event&>(event);
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update_hover_targets(pointer_event);
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dispatch_to_renderables(root->hit_renderables(pointer_event.position), event);
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break;
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}
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case Event_Type::Pointer_Press:
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case Event_Type::Pointer_Release: {
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const auto& pointer_event = static_cast<const Pointer_Event&>(event);
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dispatch_to_renderables(root->hit_renderables(pointer_event.position), event);
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break;
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}
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case Event_Type::Wheel: {
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const auto& wheel_event = static_cast<const Wheel_Event&>(event);
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dispatch_to_renderables(root->hit_renderables(wheel_event.position), event);
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break;
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}
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case Event_Type::Key_Press:
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case Event_Type::Key_Release:
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dispatch_to_renderables(reverse_renderable_snapshot(), event);
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break;
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case Event_Type::Leave:
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clear_hover_targets();
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dispatch_to_renderables(renderable_snapshot(), event);
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break;
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default:
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dispatch_to_renderables(renderable_snapshot(), event);
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break;
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}
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}
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std::vector<std::shared_ptr<Renderable>> renderable_snapshot() const {
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std::vector<std::shared_ptr<Renderable>> result;
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append_renderable_snapshot(result, root);
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return result;
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}
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Renderable_Tree_Snapshot renderable_tree_snapshot() const {
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Renderable_Tree_Snapshot result;
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if (root)
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root->append_tree_snapshot(result);
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return result;
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}
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std::vector<std::shared_ptr<Renderable>> reverse_renderable_snapshot() const {
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std::vector<std::shared_ptr<Renderable>> result = renderable_snapshot();
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std::reverse(result.begin(), result.end());
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return result;
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}
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void append_renderable_snapshot(std::vector<std::shared_ptr<Renderable>>& result, const std::shared_ptr<Renderable>& renderable) const {
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if (!renderable)
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return;
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result.push_back(renderable);
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for (const auto& child : renderable->children_snapshot())
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append_renderable_snapshot(result, child);
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}
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void dispatch_to_renderables(const std::vector<std::shared_ptr<Renderable>>& renderables, const Event& event) {
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for (const auto& renderable : renderables) {
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if (!renderable || event.is_accepted())
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break;
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renderable->plot_event(event);
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}
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}
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void update_hover_targets(const Pointer_Event& event) {
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Point pos{static_cast<int>(event.position.x), static_cast<int>(event.position.y)};
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std::vector<std::shared_ptr<Renderable>> hits = root->hit_renderables(event.position);
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for (const auto& old_target : hover_targets) {
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auto target = old_target.lock();
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if (!target)
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continue;
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if (std::find(hits.begin(), hits.end(), target) == hits.end())
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target->set_hover_state(pos, false);
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}
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hover_targets.clear();
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hover_targets.reserve(hits.size());
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for (const auto& target : hits) {
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if (!target)
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continue;
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target->set_hover_state(pos, true);
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hover_targets.push_back(target);
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}
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}
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void clear_hover_targets() {
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Point pos{};
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for (const auto& old_target : hover_targets) {
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if (auto target = old_target.lock())
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target->set_hover_state(pos, false);
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}
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hover_targets.clear();
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}
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void request_present(Rect dirty_rect) {
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if (auto target = sink.lock())
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target->request_present(dirty_rect);
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}
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void collect_frame(std::shared_ptr<const Frame_Lifecycle_Record> frame) {
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if (!frame)
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return;
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auto observer = std::atomic_load_explicit(&context->frame_lifecycle_observer, std::memory_order_acquire);
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if (observer && observer->enabled())
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observer->collect_frame(frame);
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}
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Color background_color() const {
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Pixel p = context->background_rgba.load(std::memory_order_acquire);
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return premultiplied_to_color(p);
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}
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std::unique_ptr<Refresh_Strategy> strategy;
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std::shared_ptr<Plot_Render_Context> context = std::make_shared<Plot_Render_Context>();
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std::shared_ptr<Renderable> root;
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std::vector<std::weak_ptr<Renderable>> hover_targets;
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Plot_Frame_Pipeline pipeline;
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std::weak_ptr<Presentation_Sink> sink;
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std::atomic_bool rendering{false};
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std::atomic<std::uint64_t> latest_input_time_ns{0};
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std::atomic<std::uint64_t> pending_input_count{0};
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bool strategy_started{};
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std::uint64_t refresh_deadline_generation{};
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std::uint64_t scheduled_refresh_deadline_ns{};
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std::uint64_t next_frame_id{};
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std::uint64_t previous_frame_time_ns{};
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Plot_Execution_Id plot_execution_id{};
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std::atomic<std::uint64_t> generation{1};
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};
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namespace {
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Plot_Execution_Id next_plot_execution_id() {
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static std::atomic<Plot_Execution_Id> next_id{1};
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return next_id.fetch_add(1, std::memory_order_acq_rel);
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|
}
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|
} // namespace
|
|
Plot_Core::Plot_Core(std::unique_ptr<Refresh_Strategy> strategy)
|
|
: d(std::make_shared<Plot_Core_Private>(std::move(strategy))) {
|
|
d->plot_execution_id = next_plot_execution_id();
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|
d->context->owner.store(this, std::memory_order_release);
|
|
Global::instance()->render_scheduler().register_plot(this);
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|
}
|
|
Plot_Core::~Plot_Core() {
|
|
d->context->destroying.store(true, std::memory_order_release);
|
|
d->generation.fetch_add(1, std::memory_order_acq_rel);
|
|
Global::instance()->render_scheduler().remove_plot(this);
|
|
d->pipeline.cancel_all_update_states();
|
|
d->context->owner.store(nullptr, std::memory_order_release);
|
|
}
|
|
void Plot_Core::init() {
|
|
if (!d->root) {
|
|
d->root = std::make_shared<Renderable>();
|
|
d->root->set_object_name("Root_Renderable");
|
|
d->root->init_root(this);
|
|
}
|
|
d->context->first_resize.store(true, std::memory_order_release);
|
|
}
|
|
std::shared_ptr<Plot_Render_Context> Plot_Core::render_context() const {
|
|
return d->context;
|
|
}
|
|
std::shared_ptr<Renderable> Plot_Core::root_renderable() const {
|
|
return d->root;
|
|
}
|
|
std::shared_ptr<Renderable> Plot_Core::create_renderable_node(
|
|
const std::shared_ptr<Renderable>& parent, std::string object_name) {
|
|
if (!parent)
|
|
return {};
|
|
auto node = std::make_shared<Renderable>();
|
|
node->set_object_name(std::move(object_name));
|
|
node->init(parent);
|
|
return node;
|
|
}
|
|
void Plot_Core::remove_renderable(const std::shared_ptr<Renderable>& renderable) {
|
|
if (!renderable)
|
|
return;
|
|
if (renderable == d->root)
|
|
d->root.reset();
|
|
else
|
|
renderable->detach_from_parent();
|
|
mark_render_state_dirty();
|
|
}
|
|
void Plot_Core::set_background_color(Color color) {
|
|
d->context->background_rgba.store(premultiply(color), std::memory_order_release);
|
|
mark_render_state_dirty();
|
|
}
|
|
Color Plot_Core::background_color() const {
|
|
return d->background_color();
|
|
}
|
|
void Plot_Core::set_viewport_size(Size size) {
|
|
Size previous{
|
|
d->context->render_width.load(std::memory_order_acquire),
|
|
d->context->render_height.load(std::memory_order_acquire)
|
|
};
|
|
d->context->render_width.store(size.width, std::memory_order_release);
|
|
d->context->render_height.store(size.height, std::memory_order_release);
|
|
if (previous != size)
|
|
d->context->viewport_version.fetch_add(1, std::memory_order_acq_rel);
|
|
if (!size.empty())
|
|
d->context->first_resize.store(false, std::memory_order_release);
|
|
}
|
|
Size Plot_Core::viewport_size() const {
|
|
return {
|
|
d->context->render_width.load(std::memory_order_acquire),
|
|
d->context->render_height.load(std::memory_order_acquire)
|
|
};
|
|
}
|
|
void Plot_Core::dispatch_event(const Event& event) {
|
|
d->dispatch_event(event);
|
|
}
|
|
void Plot_Core::mark_render_state_dirty() {
|
|
if (d->destroying())
|
|
return;
|
|
std::uint64_t now_ns = steady_now_ns();
|
|
d->pipeline.advance_edit_version();
|
|
d->latest_input_time_ns.store(now_ns, std::memory_order_release);
|
|
d->pending_input_count.fetch_add(1, std::memory_order_relaxed);
|
|
d->post_scheduler_action([data = d, now_ns]() {
|
|
data->notify_input_changed(now_ns);
|
|
});
|
|
}
|
|
void Plot_Core::request_manual_refresh() {
|
|
if (d->destroying())
|
|
return;
|
|
d->post_scheduler_action([data = d]() {
|
|
data->trigger_refresh_strategy(Refresh_Trigger::Manual_Request);
|
|
});
|
|
}
|
|
void Plot_Core::start_render() {
|
|
if (d->destroying())
|
|
return;
|
|
d->rendering.store(true, std::memory_order_release);
|
|
d->post_scheduler_action([data = d]() {
|
|
data->notify_started();
|
|
});
|
|
}
|
|
void Plot_Core::pause_render() {
|
|
d->rendering.store(false, std::memory_order_release);
|
|
d->post_scheduler_action([data = d]() {
|
|
data->notify_paused();
|
|
});
|
|
}
|
|
bool Plot_Core::is_rendering() const {
|
|
return d->rendering.load(std::memory_order_acquire);
|
|
}
|
|
void Plot_Core::set_presentation_sink(std::weak_ptr<Presentation_Sink> sink) {
|
|
d->sink = std::move(sink);
|
|
}
|
|
Present_Frame_Lease Plot_Core::begin_present() {
|
|
Present_Frame_Lease result;
|
|
if (!d->root)
|
|
return result;
|
|
auto consumed = d->pipeline.try_acquire_paint_frame(steady_now_ns());
|
|
if (consumed.returned_frame_record) {
|
|
d->post_scheduler_action([data = d, frame = consumed.returned_frame_record]() mutable {
|
|
data->notify_frame_returned(frame);
|
|
});
|
|
}
|
|
result.is_new_frame = consumed.has_new_frame;
|
|
result.update_was_pending = consumed.present_request_was_pending;
|
|
if (consumed.lease)
|
|
result.lease_.emplace(std::move(consumed.lease));
|
|
if (!result.new_frame() && result.request_was_pending()) {
|
|
d->post_scheduler_action([data = d]() {
|
|
data->trigger_refresh_strategy(Refresh_Trigger::Paint_Finished);
|
|
});
|
|
}
|
|
return result;
|
|
}
|
|
void Plot_Core::end_present(Present_Frame_Lease&& frame, std::uint64_t paint_begin_ns, std::uint64_t paint_end_ns) {
|
|
if (frame.lease_ && frame.lease_->frame) {
|
|
auto* rendered_frame = frame.lease_->frame;
|
|
if (rendered_frame->metadata) {
|
|
rendered_frame->metadata->paint_begin_ns = paint_begin_ns;
|
|
rendered_frame->metadata->paint_end_ns = paint_end_ns;
|
|
rendered_frame->metadata->wait_23_ns = paint_begin_ns > rendered_frame->metadata->transition_12_ns ? paint_begin_ns - rendered_frame->metadata->transition_12_ns : 0;
|
|
}
|
|
complete_update_states(rendered_frame->presented_update_states, Update_Stage::Presented);
|
|
}
|
|
frame.lease_.reset();
|
|
d->post_scheduler_action([data = d]() mutable {
|
|
data->trigger_refresh_strategy(Refresh_Trigger::Paint_Finished);
|
|
});
|
|
}
|
|
} // namespace renderive
|