Report

Report/uml/zivro-render-sequence.puml

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+@startuml
+title Zivro: последовательность рендера кадра (CPU)
+
+actor User
+participant "UI Frame\n(frame.zig)" as UI
+participant "Canvas\n(Canvas.zig)" as Canvas
+participant "RenderEngine" as RE
+participant "CpuRenderEngine" as CPU
+participant "drawDocument\n(cpu/draw.zig)" as Draw
+participant "Shape modules\nline/ellipse/broken" as Shapes
+
+User -> UI : input/events
+UI -> Canvas : processPendingRedraw()
+alt redraw pending and throttle passed
+  Canvas -> Canvas : computeVisibleImageRect()\ncompute quality scale
+  Canvas -> RE : render(document, canvas_size, visible_rect)
+  RE -> CPU : renderDocument(...)
+  CPU -> Draw : drawDocument(pixels,...)
+  loop for each root object
+    Draw -> Draw : Transform.compose(parent, local)
+    Draw -> Shapes : draw shape by object.kind
+    loop for each child
+      Draw -> Draw : recursive drawObject(child, world_transform)
+    end
+  end
+  Draw --> CPU : pixels rendered
+  CPU --> Canvas : texture
+  Canvas -> UI : texture for draw
+else no redraw
+  Canvas -> UI : keep previous texture
+end
+
+@enduml