model_nwn.h

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/* xoreos - A reimplementation of BioWare's Aurora engine
 *
 * xoreos is the legal property of its developers, whose names
 * can be found in the AUTHORS file distributed with this source
 * distribution.
 *
 * xoreos is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version.
 *
 * xoreos is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with xoreos. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef GRAPHICS_AURORA_MODEL_NWN_H
#define GRAPHICS_AURORA_MODEL_NWN_H

#include "src/graphics/aurora/model.h"
#include "src/graphics/aurora/modelnode.h"

namespace Common {
    class SeekableReadStream;
    class StreamTokenizer;
}

namespace Graphics {

namespace Aurora {

class ModelNode_NWN_Binary;
class ModelNode_NWN_ASCII;

class Model_NWN : public Model {
public:
    Model_NWN(const Common::UString &name, ModelType type = kModelTypeObject,
              const Common::UString &texture = "", ModelCache *modelCache = 0);
    ~Model_NWN();

private:
    struct ParserContext {
        Common::SeekableReadStream *mdl;

        Common::UString mdlName;

        State *state;

        bool isASCII;

        std::list<ModelNode *> nodes;

        Common::UString texture;

        uint32 offModelData;
        uint32 offRawData;

        bool hasPosition;
        bool hasOrientation;

        Common::StreamTokenizer *tokenize;
        std::vector<uint32> anims;

        ParserContext(const Common::UString &name, const Common::UString &t);
        ~ParserContext();

        bool findNode(const Common::UString &name, ModelNode *&node) const;

        void clear();
    };


    void newState(ParserContext &ctx);
    void addState(ParserContext &ctx);

    void loadBinary(ParserContext &ctx);
    void readAnimBinary(ParserContext &ctx, uint32 offset);

    void loadASCII(ParserContext &ctx);
    void readAnimASCII(ParserContext &ctx);
    void skipAnimASCII(ParserContext &ctx);

    void loadSuperModel(ModelCache *modelCache);

    void populateDefaultAnimations();

    friend class ModelNode_NWN_Binary;
    friend class ModelNode_NWN_ASCII;
};

class ModelNode_NWN_Binary : public ModelNode {
public:
    ModelNode_NWN_Binary(Model &model);
    ~ModelNode_NWN_Binary();

    void load(Model_NWN::ParserContext &ctx);

    static Common::UString loadName(Model_NWN::ParserContext &ctx);

private:
    void checkDuplicateNode(Model_NWN::ParserContext &ctx, ModelNode_NWN_Binary *newNode);

    void readMesh(Model_NWN::ParserContext &ctx);
    void readAnim(Model_NWN::ParserContext &ctx);

    void readNodeControllers(Model_NWN::ParserContext &ctx, uint32 offset,
                           uint32 count, std::vector<float> &data);
};

class ModelNode_NWN_ASCII : public ModelNode {
public:
    ModelNode_NWN_ASCII(Model &model);
    ~ModelNode_NWN_ASCII();

    void load(Model_NWN::ParserContext &ctx,
              const Common::UString &type, const Common::UString &name);

private:
    struct Mesh {
        uint32 vCount;
        uint32 tCount;
        uint32 faceCount;

        std::vector<Common::UString> textures;

        std::vector<float> vX, vY, vZ;
        std::vector<float> tX, tY;

        std::vector<uint32> vIA, vIB, vIC;
        std::vector<uint32> tIA, tIB, tIC;

        std::vector<uint32> smooth, mat;

        Mesh();
    };

    void readConstraints(Model_NWN::ParserContext &ctx, uint32 n);
    void readWeights(Model_NWN::ParserContext &ctx, uint32 n);

    void readFloats(const std::vector<Common::UString> &strings,
                    float *floats, uint32 n, uint32 start);

    void readVCoords(Model_NWN::ParserContext &ctx, Mesh &mesh);
    void readTCoords(Model_NWN::ParserContext &ctx, Mesh &mesh);

    void readFaces(Model_NWN::ParserContext &ctx, Mesh &mesh);

    void processMesh(ModelNode_NWN_ASCII::Mesh &mesh);
};

} // End of namespace Aurora

} // End of namespace Graphics

#endif // GRAPHICS_AURORA_MODEL_NWN_BINARY_H