/*
Open Asset Import Library (assimp)
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*/

/** @file Defines a post processing step to bring a given scene
 into the verbose format that is expected by most postprocess steps.
 This is the inverse of the "JoinIdenticalVertices" step. */
#ifndef AI_MAKEVERBOSEFORMAT_H_INC
#define AI_MAKEVERBOSEFORMAT_H_INC

#include "Common/BaseProcess.h"

struct aiMesh;

namespace Assimp {

// ---------------------------------------------------------------------------
/** MakeVerboseFormatProcess: Class to convert an asset to the verbose
 *  format which is expected by most postprocess steps.
 *
 * This is the inverse of what the "JoinIdenticalVertices" step is doing.
 * This step has no official flag (since it wouldn't make sense to run it
 * during import). It is intended for applications intending to modify the
 * returned aiScene. After this step has been executed, they can execute
 * other postprocess steps on the data. The code might also be useful to
 * quickly adapt code that doesn't result in a verbose representation of
 * the scene data.
 * The step has been added because it was required by the viewer, however
 * it has been moved to the main library since others might find it
 * useful, too. */
class ASSIMP_API_WINONLY MakeVerboseFormatProcess : public BaseProcess {
public:
    // -------------------------------------------------------------------
    /// The default class constructor / destructor.
    MakeVerboseFormatProcess() = default;
    ~MakeVerboseFormatProcess() override = default;

    // -------------------------------------------------------------------
    /** Returns whether the processing step is present in the given flag field.
    * @param pFlags The processing flags the importer was called with. A bitwise
    *   combination of #aiPostProcessSteps.
    * @return true if the process is present in this flag fields, false if not */
    bool IsActive( unsigned int /*pFlags*/ ) const  override
    {
        // NOTE: There is no direct flag that corresponds to
        // this postprocess step.
        return false;
    }

    // -------------------------------------------------------------------
    /** Executes the post processing step on the given imported data.
    * At the moment a process is not supposed to fail.
    * @param pScene The imported data to work at. */
    void Execute( aiScene* pScene) override;

public:

    // -------------------------------------------------------------------
    /** Checks whether the scene is already in verbose format.
    * @param pScene The data to check.
    * @return true if the scene is already in verbose format. */
    static bool IsVerboseFormat(const aiScene* pScene);

private:

    //! Apply the postprocess step to a given submesh
    bool MakeVerboseFormat (aiMesh* pcMesh);
};

} // end of namespace Assimp

#endif // !!AI_KILLNORMALPROCESS_H_INC
