implements PLN-0079 gfx2d primitive buffering

crates/console/prometeu-system/src/services/vm_runtime/dispatch.rs

@@ -7,12 +7,13 @@ use prometeu_hal::asset::{AssetId, AssetOpStatus, BankType, SlotRef};
 use prometeu_hal::color::Color;
 use prometeu_hal::glyph::Glyph;
 use prometeu_hal::log::{LogLevel, LogSource};
+use prometeu_hal::primitives::Rect;
 use prometeu_hal::sprite::Sprite;
 use prometeu_hal::syscalls::Syscall;
 use prometeu_hal::vm_fault::VmFault;
 use prometeu_hal::{
-    AudioOpStatus, ComposerOpStatus, HostContext, HostReturn, NativeInterface, SyscallId,
+    AudioOpStatus, ComposerOpStatus, Gfx2dCommand, HostContext, HostReturn, NativeInterface,
-    expect_bool, expect_int,
+    SyscallId, expect_bool, expect_int,
 };
 use std::collections::HashMap;
 use std::ops::{Deref, DerefMut};
@@ -185,6 +186,7 @@ impl NativeInterface for VmRuntimeHost<'_> {
             Syscall::SystemRunCart => unreachable!(),
             Syscall::GfxClear => {
                 let color = self.get_color(expect_int(args, 0)?)?;
+                self.gfx2d_commands.push(Gfx2dCommand::Clear { color });
                 hw.gfx_mut().clear(color);
                 Ok(())
             }
@@ -205,6 +207,8 @@ impl NativeInterface for VmRuntimeHost<'_> {
                 let w = expect_int(args, 2)? as i32;
                 let h = expect_int(args, 3)? as i32;
                 let color = self.get_color(expect_int(args, 4)?)?;
+                self.gfx2d_commands
+                    .push(Gfx2dCommand::FillRect { rect: Rect { x, y, w, h }, color });
                 hw.gfx_mut().fill_rect(x, y, w, h, color);
                 Ok(())
             }
@@ -229,6 +233,13 @@ impl NativeInterface for VmRuntimeHost<'_> {
                 let x2 = expect_int(args, 2)? as i32;
                 let y2 = expect_int(args, 3)? as i32;
                 let color = self.get_color(expect_int(args, 4)?)?;
+                self.gfx2d_commands.push(Gfx2dCommand::DrawLine {
+                    x0: x1,
+                    y0: y1,
+                    x1: x2,
+                    y1: y2,
+                    color,
+                });
                 hw.gfx_mut().draw_line(x1, y1, x2, y2, color);
                 Ok(())
             }
@@ -252,6 +263,7 @@ impl NativeInterface for VmRuntimeHost<'_> {
                 let y = expect_int(args, 1)? as i32;
                 let r = expect_int(args, 2)? as i32;
                 let color = self.get_color(expect_int(args, 3)?)?;
+                self.gfx2d_commands.push(Gfx2dCommand::DrawCircle { x, y, radius: r, color });
                 hw.gfx_mut().draw_circle(x, y, r, color);
                 Ok(())
             }
@@ -275,6 +287,13 @@ impl NativeInterface for VmRuntimeHost<'_> {
                 let r = expect_int(args, 2)? as i32;
                 let border_color = self.get_color(expect_int(args, 3)?)?;
                 let fill_color = self.get_color(expect_int(args, 4)?)?;
+                self.gfx2d_commands.push(Gfx2dCommand::DrawDisc {
+                    x,
+                    y,
+                    radius: r,
+                    border_color,
+                    fill_color,
+                });
                 hw.gfx_mut().draw_disc(x, y, r, border_color, fill_color);
                 Ok(())
             }
@@ -300,6 +319,11 @@ impl NativeInterface for VmRuntimeHost<'_> {
                 let h = expect_int(args, 3)? as i32;
                 let border_color = self.get_color(expect_int(args, 4)?)?;
                 let fill_color = self.get_color(expect_int(args, 5)?)?;
+                self.gfx2d_commands.push(Gfx2dCommand::DrawSquare {
+                    rect: Rect { x, y, w, h },
+                    border_color,
+                    fill_color,
+                });
                 hw.gfx_mut().draw_square(x, y, w, h, border_color, fill_color);
                 Ok(())
             }
@@ -324,6 +348,7 @@ impl NativeInterface for VmRuntimeHost<'_> {
                 let y = expect_int(args, 1)? as i32;
                 let msg = expect_string(args, 2, "message")?;
                 let color = self.get_color(expect_int(args, 3)?)?;
+                self.gfx2d_commands.push(Gfx2dCommand::DrawText { x, y, text: msg.clone(), color });
                 hw.gfx_mut().draw_text(x, y, &msg, color);
                 Ok(())
             }

crates/console/prometeu-system/src/services/vm_runtime/lifecycle.rs

@@ -23,6 +23,7 @@ impl VirtualMachineRuntime {
             current_cartridge_app_version: String::new(),
             current_cartridge_app_mode: AppMode::Game,
             render_manager: RenderManager::new(AppMode::Game),
+            gfx2d_commands: Vec::new(),
             logs_written_this_frame: HashMap::new(),
             atomic_telemetry,
             last_crash_report: None,
@@ -118,6 +119,7 @@ impl VirtualMachineRuntime {
         self.current_cartridge_app_version.clear();
         self.current_cartridge_app_mode = AppMode::Game;
         self.render_manager = RenderManager::new(AppMode::Game);
+        self.gfx2d_commands.clear();
         self.logs_written_this_frame.clear();
 
         self.last_crash_report = None;

crates/console/prometeu-system/src/services/vm_runtime/mod.rs

@@ -7,6 +7,7 @@ mod tick;
 
 use crate::CrashReport;
 use prometeu_bytecode::string_materialization_count;
+use prometeu_hal::Gfx2dCommand;
 use prometeu_hal::app_mode::AppMode;
 use prometeu_hal::log::LogService;
 use prometeu_hal::telemetry::{AtomicTelemetry, CertificationConfig, Certifier};
@@ -28,6 +29,7 @@ pub struct VirtualMachineRuntime {
     pub current_cartridge_app_version: String,
     pub current_cartridge_app_mode: AppMode,
     pub render_manager: RenderManager,
+    pub gfx2d_commands: Vec<Gfx2dCommand>,
     pub logs_written_this_frame: HashMap<u32, u32>,
     pub atomic_telemetry: Arc<AtomicTelemetry>,
     pub last_crash_report: Option<CrashReport>,

crates/console/prometeu-system/src/services/vm_runtime/tests.rs

@@ -730,6 +730,13 @@ fn tick_draw_text_survives_no_scene_frame_path() {
     );
 
     assert!(report.is_none(), "no-scene overlay text must not crash");
+    let submission =
+        runtime.render_manager.latest_complete_submission().expect("closed submission");
+    let prometeu_hal::RenderSubmissionPacket::Game2D(packet) = &submission.packet else {
+        panic!("expected Game2D submission");
+    };
+    assert_eq!(packet.gfx2d.len(), 1);
+    assert!(matches!(packet.gfx2d[0], prometeu_hal::Gfx2dCommand::DrawText { .. }));
     hardware.gfx.present();
     assert_eq!(hardware.gfx.front_buffer()[0], Color::from_raw(0x11223344).raw());
 }

crates/console/prometeu-system/src/services/vm_runtime/tick.rs

@@ -222,10 +222,10 @@ impl VirtualMachineRuntime {
                     {
                         self.render_manager.set_active_app_mode(self.current_cartridge_app_mode);
                         if self.current_cartridge_app_mode == AppMode::Game {
+                            let mut packet = hw.close_game2d_packet();
+                            packet.gfx2d = std::mem::take(&mut self.gfx2d_commands);
                             self.render_manager
-                                .close_frame_with_packet(RenderSubmissionPacket::Game2D(
+                                .close_frame_with_packet(RenderSubmissionPacket::Game2D(packet))
-                                    hw.close_game2d_packet(),
-                                ))
                                 .expect("game packet must match Game app mode");
                         } else {
                             self.render_manager.close_compat_frame();

discussion/index.ndjson

@@ -1,5 +1,5 @@
 {"type":"meta","next_id":{"DSC":39,"AGD":39,"DEC":31,"PLN":87,"LSN":47,"CLSN":1}}
-{"type":"discussion","id":"DSC-0038","status":"in_progress","ticket":"render-frame-packet-boundary","title":"Logical Render Pipelines and Command Packets","created_at":"2026-05-25","updated_at":"2026-05-25","tags":["gfx","renderer","runtime","frame-composer","architecture","ui","pipeline"],"agendas":[{"id":"AGD-0038","file":"AGD-0038-renderframepacket-boundary-for-classic-2d-renderer.md","status":"accepted","created_at":"2026-05-25","updated_at":"2026-05-25"}],"decisions":[{"id":"DEC-0030","file":"DEC-0030-logical-render-pipeline-command-boundary.md","status":"accepted","created_at":"2026-05-25","updated_at":"2026-05-25","ref_agenda":"AGD-0038"}],"plans":[{"id":"PLN-0073","file":"PLN-0073-render-contract-specs.md","status":"done","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0074","file":"PLN-0074-hal-render-submission-types.md","status":"done","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0075","file":"PLN-0075-rendermanager-core.md","status":"done","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0076","file":"PLN-0076-capabilities-and-abi-domain-split.md","status":"done","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0077","file":"PLN-0077-composer-buffer-and-game2d-packet.md","status":"done","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0078","file":"PLN-0078-classic2d-game-renderer-consumer.md","status":"done","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0079","file":"PLN-0079-gfx2d-primitive-domain.md","status":"open","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0080","file":"PLN-0080-shell-ui-packet-and-gfxui-domain.md","status":"open","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0081","file":"PLN-0081-shell-hub-migration.md","status":"open","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0082","file":"PLN-0082-frame-publication-and-present-boundary.md","status":"open","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0083","file":"PLN-0083-fade-removal.md","status":"open","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0084","file":"PLN-0084-host-debug-overlay-removal.md","status":"open","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0085","file":"PLN-0085-pbs-stdlib-and-syscall-declarations.md","status":"open","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0086","file":"PLN-0086-end-to-end-render-boundary-validation.md","status":"open","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]}],"lessons":[]}
+{"type":"discussion","id":"DSC-0038","status":"in_progress","ticket":"render-frame-packet-boundary","title":"Logical Render Pipelines and Command Packets","created_at":"2026-05-25","updated_at":"2026-05-25","tags":["gfx","renderer","runtime","frame-composer","architecture","ui","pipeline"],"agendas":[{"id":"AGD-0038","file":"AGD-0038-renderframepacket-boundary-for-classic-2d-renderer.md","status":"accepted","created_at":"2026-05-25","updated_at":"2026-05-25"}],"decisions":[{"id":"DEC-0030","file":"DEC-0030-logical-render-pipeline-command-boundary.md","status":"accepted","created_at":"2026-05-25","updated_at":"2026-05-25","ref_agenda":"AGD-0038"}],"plans":[{"id":"PLN-0073","file":"PLN-0073-render-contract-specs.md","status":"done","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0074","file":"PLN-0074-hal-render-submission-types.md","status":"done","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0075","file":"PLN-0075-rendermanager-core.md","status":"done","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0076","file":"PLN-0076-capabilities-and-abi-domain-split.md","status":"done","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0077","file":"PLN-0077-composer-buffer-and-game2d-packet.md","status":"done","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0078","file":"PLN-0078-classic2d-game-renderer-consumer.md","status":"done","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0079","file":"PLN-0079-gfx2d-primitive-domain.md","status":"done","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0080","file":"PLN-0080-shell-ui-packet-and-gfxui-domain.md","status":"open","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0081","file":"PLN-0081-shell-hub-migration.md","status":"open","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0082","file":"PLN-0082-frame-publication-and-present-boundary.md","status":"open","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0083","file":"PLN-0083-fade-removal.md","status":"open","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0084","file":"PLN-0084-host-debug-overlay-removal.md","status":"open","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0085","file":"PLN-0085-pbs-stdlib-and-syscall-declarations.md","status":"open","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]},{"id":"PLN-0086","file":"PLN-0086-end-to-end-render-boundary-validation.md","status":"open","created_at":"2026-05-25","updated_at":"2026-05-25","ref_decisions":["DEC-0030"]}],"lessons":[]}
 {"type":"discussion","id":"DSC-0035","status":"done","ticket":"task-owned-shell-windows","title":"Agenda - Task-Owned Shell Windows","created_at":"2026-05-15","updated_at":"2026-05-15","tags":["runtime","os","task","window-manager","shell","lifecycle"],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0044","file":"discussion/lessons/DSC-0035-task-owned-shell-windows/LSN-0044-task-window-liveness-belongs-to-the-task.md","status":"done","created_at":"2026-05-15","updated_at":"2026-05-15"}]}
 {"type":"discussion","id":"DSC-0034","status":"done","ticket":"system-os-domain-facades","title":"Agenda - SystemOS Domain Facades","created_at":"2026-05-15","updated_at":"2026-05-15","tags":["runtime","os","services","api-surface","lifecycle","fs"],"agendas":[],"decisions":[],"plans":[],"lessons":[{"id":"LSN-0043","file":"discussion/lessons/DSC-0034-system-os-domain-facades/LSN-0043-systemos-domain-facades.md","status":"done","created_at":"2026-05-15","updated_at":"2026-05-15"}]}
 {"type":"discussion","id":"DSC-0023","status":"done","ticket":"perf-full-migration-to-atomic-telemetry","title":"Agenda - [PERF] Full Migration to Atomic Telemetry","created_at":"2026-04-10","updated_at":"2026-04-10","tags":["perf","runtime","telemetry"],"agendas":[{"id":"AGD-0021","file":"AGD-0021-full-migration-to-atomic-telemetry.md","status":"done","created_at":"2026-04-10","updated_at":"2026-04-10"}],"decisions":[{"id":"DEC-0008","file":"DEC-0008-full-migration-to-atomic-telemetry.md","status":"accepted","created_at":"2026-04-10","updated_at":"2026-04-10"}],"plans":[{"id":"PLN-0007","file":"PLN-0007-full-migration-to-atomic-telemetry.md","status":"done","created_at":"2026-04-10","updated_at":"2026-04-10"}],"lessons":[{"id":"LSN-0028","file":"discussion/lessons/DSC-0023-perf-full-migration-to-atomic-telemetry/LSN-0028-converging-to-single-atomic-telemetry-source.md","status":"done","created_at":"2026-04-10","updated_at":"2026-04-10"}]}

discussion/workflow/plans/PLN-0079-gfx2d-primitive-domain.md

@@ -2,7 +2,7 @@
 id: PLN-0079
 ticket: render-frame-packet-boundary
 title: Gfx2D Primitive Domain
-status: open
+status: done
 created: 2026-05-25
 ref_decisions: [DEC-0030]
 tags: [gfx, renderer, runtime, frame-composer, architecture, ui, pipeline]