ReplayingRenderer.h File Reference

Decodes a SerializingRenderer wire stream and dispatches its messages onto a wrapped, real RendererInterface. The replay is host-side: the target can be RendererTinySkia, RendererGeode, or a test mock. More...

#include <cstdint>
#include <memory>
#include <span>
#include "donner/base/EcsRegistry.h"
#include "donner/editor/sandbox/Wire.h"
#include "donner/svg/renderer/RendererInterface.h"

Include dependency graph for ReplayingRenderer.h:

This graph shows which files directly or indirectly include this file:

Classes
struct	donner::editor::sandbox::ReplayReport
	Statistics and diagnostic info from a replay. Always valid regardless of status. More...
class	donner::editor::sandbox::ReplayingRenderer

Namespaces
namespace	donner
	Top-level Donner namespace, which is split into different sub-namespaces such as donner::svg and donner::css.

Enumerations
enum class	donner::editor::sandbox::ReplayStatus {   kOk ,   kEndOfStream ,   kMalformed ,   kUnknownOpcode ,   kHeaderMismatch ,   kEncounteredUnsupported }
	Outcome of replaying a single frame onto the wrapped backend. More...

Detailed Description

Decodes a SerializingRenderer wire stream and dispatches its messages onto a wrapped, real RendererInterface. The replay is host-side: the target can be RendererTinySkia, RendererGeode, or a test mock.

ReplayingRenderer::pumpFrame() is the single entry point. It reads messages from the wire until it encounters kEndFrame, an unknown opcode, a malformed payload, or end-of-stream. It never crashes on adversarial input; every failure is reported via a ReplayStatus return code.

Enumeration Type Documentation

ReplayStatus

enum class donner::editor::sandbox::ReplayStatus

strong

Outcome of replaying a single frame onto the wrapped backend.

Enumerator
kOk	Frame ended cleanly with kEndFrame.
kEndOfStream	Reader ran out of bytes without seeing kEndFrame.
kMalformed	A payload failed to decode (length, tag, range).
kUnknownOpcode	Reader saw an opcode it doesn't know.
kHeaderMismatch	Magic or version mismatch on the stream header.
kEncounteredUnsupported	Replay succeeded but hit a kUnsupported message.