EditorMaterialPreview.h

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#pragma once
 
#include "graphics/material/editor/EditorMaterialTarget.h"
 
#include <string>
#include <unordered_map>
#include <vector>
 
namespace eve::editor {
 
struct MaterialPreviewSettings {
    std::string geometry = "sphere";
    std::string customMeshAsset;
    std::string environmentAsset;
    int width = 512;
    int height = 512;
    double yawDegrees = 25.0;
    double pitchDegrees = -15.0;
    double distance = 3.0;
};
 
struct MaterialPreviewRenderRequest {
    StableId sceneId;
    DocumentId document;
    Revision documentRevision = 0;
    EditorValue material;
    MaterialPreviewSettings settings;
};
 
struct MaterialPreviewRenderResult {
    EditorStatus status = EditorStatus::Failed;
    std::string artifact;
    std::vector<EditorDiagnostic> diagnostics;
};
 
class IMaterialPreviewRenderer {
public:
    virtual ~IMaterialPreviewRenderer() = default;
    virtual MaterialPreviewRenderResult render(const MaterialPreviewRenderRequest& request) = 0;
};
 
class EVENGINE_API_EDITORS MaterialPreviewService {
public:
    Result<TaskId> render(const DocumentId& document, const MaterialDocumentTarget& material,
                                MaterialPreviewSettings settings, IMaterialPreviewRenderer& renderer);
    Result<MaterialPreviewRenderResult> result(const TaskId& task) const;
    Result<void> publish(const DocumentId& document, Revision currentRevision, const TaskId& task);
    std::string publishedArtifact(const DocumentId& document) const;
 
private:
    struct Task {
        DocumentId document;
        Revision revision = 0;
        MaterialPreviewRenderResult result;
    };
    std::unordered_map<TaskId, Task, StrongEditorIdHash<TaskId>> tasks_;
    std::unordered_map<DocumentId, std::string, StrongEditorIdHash<DocumentId>> published_;
    std::uint64_t sequence_ = 0;
};
 
}  // namespace eve::editor