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authoraap <aap@papnet.eu>2019-05-18 12:39:39 +0200
committeraap <aap@papnet.eu>2019-05-18 12:39:39 +0200
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+/***************************************************************************
+ * *
+ * Module : rtimport.h *
+ * *
+ * Purpose : World handling functions. *
+ * *
+ **************************************************************************/
+
+#ifndef RTIMPORT_H
+#define RTIMPORT_H
+
+/**
+ * \defgroup rtimport RtWorldImport
+ * \ingroup rttool
+ *
+ * World Import Toolkit for Renderware.
+ */
+
+/**
+ * \defgroup selectors RtWorldImportPartitionSelectors
+ * \ingroup rtimport
+ *
+ * The set of provided RtWorldImportPartitionSelectors:
+ * Selects a good partition by calling one of the
+ * \ref iterators and then
+ * one of the \ref evaluators to
+ * see which is best.
+ */
+
+/**
+ * \defgroup iterators RtWorldImportPartitionIterators
+ * \ingroup rtimport
+ *
+ * The set of provided RtWorldImportPartitionIterators:
+ * Iterates through a set of candidate partitions, possibly
+ * using the geometric information in the build sector, or perhaps
+ * using some other criteria.
+ */
+
+/**
+ * \defgroup evaluators RtWorldImportPartitionEvaluators
+ * \ingroup rtimport
+ *
+ * The set of provided RtWorldImportPartitionEvaluators:
+ * Uses a combination of statistics, build sector, build status, and
+ * possibly other criteria to evaluate a partition. While the value
+ * returned can be any real value, all provided evaluators are return
+ * lower values for better partitioners, and are in the range [0..1]
+ * where appropriate
+ */
+
+/**
+ * \defgroup terminators RtWorldImportPartitionTerminators
+ * \ingroup rtimport
+ *
+ * The set of provided RtWorldImportPartitionTerminators:
+ * Checks given criteria about the statistics, build sector, build status, and
+ * possibly other criteria to see whether the building process should be
+ * allowed to terminate, or whether more parititoning is necessary.
+ */
+
+/**
+ * \defgroup kd RtWorldImportGuideKD
+ * \ingroup rtimport
+ *
+ * Tools to manipulate the \ref RtWorldImportGuideKDTree that is used to
+ * manually build the sectors of a world.
+ */
+
+/**
+ * \defgroup hints RtWorldImportHints
+ * \ingroup rtimport
+ *
+ * Tools to aid the build process by giving hints as to what geometry should
+ * not be split, and what geometry makes for a good partitioning guide.
+ */
+
+/****************************************************************************
+ Includes
+ */
+#include "rwcore.h"
+#include "rpworld.h"
+
+#include "rtimport.rpe" /* automatically generated header file */
+
+/****************************************************************************
+ Defines
+ */
+
+/* Progress callback message types */
+#define rtWORLDIMPORTPROGRESSBSPBUILDSTART 0
+#define rtWORLDIMPORTPROGRESSBSPBUILDUPDATE 1
+#define rtWORLDIMPORTPROGRESSBSPBUILDEND 2
+#define rtWORLDIMPORTPROGRESSBSPCOMPRESSSTART 3
+#define rtWORLDIMPORTPROGRESSBSPCOMPRESSUPDATE 4
+#define rtWORLDIMPORTPROGRESSBSPCOMPRESSEND 5
+
+/**
+ * \ingroup rtimport
+ * \def rtWORLDIMPORTINVALIDPARTITION
+ *
+ * This value means that no partition was found, or that the partition was
+ * invalid or impractical. The value represents infinity.
+ */
+#define rtWORLDIMPORTINVALIDPARTITION RwRealMAXVAL
+
+/****************************************************************************
+ Global types
+ */
+
+/**
+ * Internal use only
+ */
+typedef union RtWorldImportVertexState RtWorldImportVertexState;
+
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportVertex
+ *
+ * typedef for struct \ref RtWorldImportVertex
+ */
+typedef struct RtWorldImportVertex RtWorldImportVertex;
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportWeldVertex
+ *
+ * typedef for struct \ref RtWorldImportWeldVertex
+ */
+typedef struct RtWorldImportWeldVertex RtWorldImportWeldVertex;
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportBuildVertex
+ *
+ * typedef for struct \ref RtWorldImportBuildVertex
+ */
+typedef struct RtWorldImportBuildVertex RtWorldImportBuildVertex;
+
+
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportBuildPolyInfo
+ *
+ * typedef for struct \ref RtWorldImportBuildPolyInfo
+ */
+typedef struct RtWorldImportBuildPolyInfo RtWorldImportBuildPolyInfo;
+/**
+ * \ingroup rtimport
+ * \struct RtWorldImportBuildPolyInfo
+ *
+ * Information about a polygon
+ */
+struct RtWorldImportBuildPolyInfo
+{
+ RwInt16 matIndex;
+ /**< The material index */
+ RwUInt8 clipFlags;
+ /**< Clipping flags */
+ RwUInt8 hasAlpha;
+ /**< Alpha status */
+ void *pUserdata;
+ /**< Userdata */
+};
+
+typedef union RtWorldImportBuildVertexMode RtWorldImportBuildVertexMode;
+/**
+ * \ingroup rtimport
+ * \struct RtWorldImportBuildVertexMode
+ *
+ * Mode of the vertex.
+ *
+ */
+union RtWorldImportBuildVertexMode
+{
+ RtWorldImportVertex *vpVert;
+ /**< The vertex */
+ RwInt32 index;
+ /**< The index */
+};
+
+/**
+ * \ingroup rtimport
+ * \struct RtWorldImportBuildVertex
+ *
+ * A list of polygons as a list of vertices where the end of poly boundary
+ * is marked by mode.vpVert == NULL.
+ *
+ */
+struct RtWorldImportBuildVertex
+{
+ RtWorldImportBuildVertexMode mode;
+ /**< The mode of the element */
+
+ RtWorldImportBuildPolyInfo pinfo;
+ /**< we store some poly info in the end marker of a boundary */
+};
+
+
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportGuideKDTree
+ *
+ * typedef for struct \ref RtWorldImportGuideKDTree
+ */
+typedef struct RtWorldImportGuideKDTree RtWorldImportGuideKDTree;
+
+/* NB Merged RtWorldImportPartition with RtWorldImportBuildClipStatistics because
+ * there was a unique one-to-one relationship between them, and it made things easier
+ * just updating one stucture, without having to update both in sequence...
+ */
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportBuildClipStatistics
+ *
+ * typedef for struct \ref RtWorldImportBuildClipStatistics
+ */
+typedef struct RtWorldImportBuildClipStatistics RtWorldImportBuildClipStatistics;
+/**
+ * \ingroup rtimport
+ * \struct RtWorldImportBuildClipStatistics
+ *
+ * Holds statistics about a partition or candidate partition during
+ * the build process.
+ */
+struct RtWorldImportBuildClipStatistics
+{
+ RwInt32 numPotentialSplit;
+ /**< The number of polygons split by the partition,
+ * disgregarding overlaps */
+
+ RwInt32 numPotentialLeft;
+ /**< The number of potential polygons and fragments on the
+ * left of the partition, disgregarding overlaps */
+
+ RwInt32 numPotentialRight;
+ /**< The number of potential polygons and fragments on the
+ * right of the partition, disgregarding overlaps */
+
+
+ RwInt32 numActualSplit;
+ /**< The number of polygons split by the partition */
+
+ RwInt32 numActualLeft;
+ /**< The number of polygons and fragments on the
+ * left of the partition */
+
+ RwInt32 numActualRight;
+ /**< The number of polygons and fragments on the
+ * right of the partition */
+
+
+ RwInt32 numMaterialLeft;
+ /**< The number of materials on the left of the partition */
+
+ RwInt32 numMaterialRight;
+ /**< The number of materials on the right of the partition */
+
+ RwInt32 numMaterialSplits;
+ /**< The number of materials split by the partition */
+
+
+ RwInt32 numMaterialSector;
+ /**< The total number of materials in the sector containing
+ * the partition */
+
+
+ RwReal overlapLeft;
+ /**< The actual, relative size of the overlap on the left of the partition */
+
+ RwReal overlapRight;
+ /**< The actual, relative size of the overlap on the right of the partition */
+};
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportPartition
+ *
+ * typedef for struct \ref RtWorldImportPartition
+ */
+typedef struct RtWorldImportPartition RtWorldImportPartition;
+/**
+ * \ingroup rtimport
+ * \struct RtWorldImportPartition
+ *
+ * A partitioning plane.
+ */
+struct RtWorldImportPartition
+{
+ RwInt32 type;
+ /**< Plane type, i.e. 0,4,8 for being normal to the x,y,z axes respectively. */
+
+ RwReal value;
+ /**< The distance of the plane from the origin */
+
+ RwReal maxLeftValue;
+ /**< The maximum value of the left face of the overlap. This is derived
+ * from the maxOverlapPercent value in \ref RtWorldImportParameters
+ */
+
+ RwReal maxRightValue;
+ /**< The maximum value of the right face of the overlap. This is derived
+ * from the maxOverlapPercent value in \ref RtWorldImportParameters
+ */
+
+ RtWorldImportBuildClipStatistics buildStats;
+ /**< The statistics for the partition */
+};
+
+/**
+ * \ingroup rtimport
+ * \struct RtWorldImportGuideKDTree
+ * Represents the structure of a binary tree with
+ * no contents per se. It is used to build a BSP in a user specified
+ * manner instead of using any heuristic.
+ *
+ */
+struct RtWorldImportGuideKDTree
+{
+ RtWorldImportPartition partition;
+ /**< A partitioning plane */
+
+ RwBBox bbox;
+ /**< Bounding box of the sector or super-sector */
+
+ RtWorldImportGuideKDTree *parent;
+ /**< Pointer to its parent */
+
+ RwInt32 order;
+ /**< Relationship information - 0 for left child, 1 for right child */
+
+ RtWorldImportGuideKDTree *left;
+ /**< Left child */
+
+ RtWorldImportGuideKDTree *right;
+ /**< Right child */
+};
+
+typedef struct _rtWorldImportGuideKDStackElement _rtWorldImportGuideKDStackElement;
+
+struct _rtWorldImportGuideKDStackElement
+{
+ RwBool terminal;
+ RtWorldImportGuideKDTree *node;
+ _rtWorldImportGuideKDStackElement *next;
+};
+
+typedef struct _rtWorldImportGuideKDStack _rtWorldImportGuideKDStack;
+
+struct _rtWorldImportGuideKDStack
+{
+ _rtWorldImportGuideKDStackElement *top;
+ _rtWorldImportGuideKDStackElement *current;
+ _rtWorldImportGuideKDStackElement *bottom;
+};
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportBuildSector
+ *
+ * typedef for struct \ref RtWorldImportBuildSector
+ */
+typedef struct RtWorldImportBuildSector RtWorldImportBuildSector;
+/**
+ * \ingroup rtimport
+ * \struct RtWorldImportBuildSector
+ *
+ * Holds information about the sector that is being subdivided
+ */
+struct RtWorldImportBuildSector
+{
+ RwInt32 type;
+ /**< Sector type (so can handle in an RpWorld) */
+
+ RtWorldImportVertex *vertices;
+ /**< A pointer to the list of vertices */
+
+ RwInt32 numVertices;
+ /**< The number of vertices */
+
+ RtWorldImportBuildVertex *boundaries;
+ /**< A list of boundaries \see RtWorldImportBuildVertex */
+
+ RwInt32 numBoundaries;
+ /**< The number of boundaries */
+
+ RwInt32 numPolygons;
+ /**< The number of polygons (triangles) */
+
+ RwBBox boundingBox;
+ /**< Sector's bounding box */
+
+ RwReal overlap;
+ /**< The percentage that the sector overlaps with its neighbour */
+
+ RwUInt32 maxNumMaterials;
+ /**< Maximum number of materials in the in the world */
+};
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportBuildStatus
+ *
+ * typedef for struct \ref RtWorldImportBuildStatus
+ */
+typedef struct RtWorldImportBuildStatus RtWorldImportBuildStatus;
+/**
+ * \ingroup rtimport
+ * \struct RtWorldImportBuildStatus
+ * World Import Build Status Structure
+ * Used to store the current tree's build status
+ */
+struct RtWorldImportBuildStatus
+{
+ RwInt32 depth; /**< current depth in the tree */
+};
+
+/**
+ * Internal use only
+ */
+union RtWorldImportVertexState
+{
+ /* clipFlags, two types, first is based on partition only, 2nd is
+ * also based on partition, but takes overlaps into consideration. i.e.
+ * number splits is usually higher in clipFlags[0] than [1] */
+ RwInt32 clipFlags[2]; /**< Internal use only */
+ RwInt32 forwardingAddress; /**< Internal use only */
+ RtWorldImportVertex *vpVert; /**< Internal use only */
+ RtWorldImportWeldVertex *vpWeldVert; /**< Internal use only */
+ RtWorldImportBuildVertex *vpBuildVert; /**< Internal use only */
+ RwSList *slist; /**< Internal use only */
+};
+
+/**
+ * \ingroup rtimport
+ * \struct RtWorldImportVertex
+ * Holds data for each vertex in the import world.
+ *
+ */
+struct RtWorldImportVertex
+{
+ RwV3d OC; /**< World space vertex position */
+ RwV3d normal; /**< World space vertex normal */
+ RwRGBA preLitCol; /**< Vertex Prelight color */
+ RwTexCoords texCoords[rwMAXTEXTURECOORDS];
+ /**< Vertex texture coordinates */
+ RtWorldImportVertexState state; /**< Internal use only */
+ RwInt32 matIndex; /**< Vertex material index */
+ void *pUserdata; /**< Pointer to unspecified per vertex user data */
+};
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportTriangle
+ * Holds data for each triangle in the import world.
+ *
+ * \see RtWorldImportTriangle
+ */
+typedef struct RtWorldImportTriangle RtWorldImportTriangle;
+/**
+ * \ingroup rtimport
+ * \struct RtWorldImportTriangle
+ * Holds data for each triangle in the import world.
+ *
+ * \see RtWorldImportTriangle
+ */
+struct RtWorldImportTriangle
+{
+ RwInt32 matIndex; /**< Index into material list */
+ RwInt32 vertIndex[3]; /**< Indices into vertex list */
+ void *pUserdata; /**< Pointer to unspecified per triangle user data */
+};
+
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportHints
+ *
+ * typedef for struct \ref RtWorldImportHints
+ */
+typedef struct RtWorldImportHints RtWorldImportHints;
+
+/**
+ * \ingroup rtimport
+ * \struct RtWorldImportHints
+ * Bounding box hints used to control the world sectorization process.
+ * \see RtWorldImportHintsSet
+ */
+struct RtWorldImportHints
+{
+ /** The bounding box hints */
+ RwBBox *boundingBoxes;
+ /** The number of bounding box hints */
+ RwInt32 numBoundingBoxes;
+};
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportParameters
+ *
+ * typedef for struct \ref RtWorldImportParameters
+ */
+typedef struct RtWorldImportParameters RtWorldImportParameters;
+
+/**
+ * \ingroup rtimport
+ * \struct RtWorldImportParameters
+ * Parameters used with \ref RtWorldImportCreateWorld.
+ * They are initialized to default values using \ref RtWorldImportParametersInit.
+ *
+ */
+struct RtWorldImportParameters
+{
+ RwReal worldSectorMaxSize;
+ /**< The maximum world sector size. */
+ RwInt32 maxWorldSectorPolygons;
+ /**< The maximum number of polygons in a world sector. */
+ RwReal maxOverlapPercent;
+ /**< Total fraction of world sector overlap allowed. */
+ RwReal weldThreshold;
+ /**< Threshold for welding vertices. */
+ RwReal angularThreshold;
+ /**< Angular threshold for welding vertex normals */
+ RwBool calcNormals;
+ /**< If TRUE then importer creates normals. */
+ RwBool conditionGeometry;
+ /**< If TRUE perform vertex welding and degenerate triangle removal.*/
+ RwBool userSpecifiedBBox;
+ /**< If TRUE allows user to specify minimum bounding-box for the
+ * world using the userBBox parameter. */
+ RwBBox userBBox;
+ /**< User specified world bounding-box if userSpecifiedBBox is TRUE.*/
+ RwReal uvLimit;
+ /**< If conditionGeometry is TRUE limit texture coordinates to this
+ * value. */
+ RwBool retainCreases;
+ /**< If TRUE then duplicate vertices with differing normals will not
+ * be merged. */
+ RwBool fixTJunctions;
+ /**< If TRUE then T-junctions are fixed in the geometry (slow). */
+ RwBool weldPolygons;
+ /**< If TRUE then polygons are welded where possible to reduce the
+ * polygon count. */
+ RwInt32 flags;
+ /**< Conversion flags (see RpWorldFlag). */
+ RwTextureAddressMode mode;
+ /**< If \ref rwTEXTUREADDRESSWRAP than weld vertices according to
+ * mod(1) congruent texture coordinates */
+ RwBool sortPolygons;
+ /**< If TRUE then polygons are sorted by their centroid */
+ RwBool cullZeroAreaPolygons;
+ /**< If TRUE then zero-area polygons are culled */
+ RwInt32 numTexCoordSets;
+ /**< The number of texture coordinate sets to use. If set to zero, then
+ * the number is taken from the flags parameter which, for backward
+ * compatibility, can include the \ref rpWORLDTEXTURED or \ref rpWORLDTEXTURED2
+ * flags. These specify one or two sets respectively. */
+ RwBool terminatorCheck;
+ /**< If TRUE the world will be checked for validity during the build process. */
+};
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImport
+ *
+ * typedef for struct \ref RtWorldImport
+ */
+typedef struct RtWorldImport RtWorldImport;
+/**
+ * \ingroup rtimport
+ * \struct RtWorldImport
+ * World Import State Structure
+ */
+struct RtWorldImport
+{
+ RpMaterialList matList; /**< Material list */
+ RtWorldImportVertex *vertices; /**< Vertex array */
+ RwInt32 numVertices; /**< Vertex count */
+
+ RtWorldImportTriangle *polygons; /**< Triangle array */
+ RwInt32 numPolygons; /**< Triangle count */
+
+
+ RwSurfaceProperties surfaceProps; /**< The world's surface
+ lighting properties */
+};
+
+/**
+ * \ingroup rtimport
+ * \ref RtWorldImportProgressCallBack is the type for the callback function supplied to
+ * \ref RtWorldImportSetProgressCallBack.
+ *
+ * \param msg Message type corresponding to one of the following:
+ * \li rtWORLDIMPORTPROGRESSBSPBUILDSTART -
+ * The BSP creation process is about to start.
+ * The argument value is equal to 0.0.
+ * \li rtWORLDIMPORTPROGRESSBSPBUILDUPDATE -
+ * The BSP creation process has finished processing a subsection of
+ * the world. The argument value is equal to the percentage of the
+ * world processed up to this point.
+ * \li rtWORLDIMPORTPROGRESSBSPBUILDEND -
+ * The BSP creation process has ended.
+ * The argument value is equal to 100.0.
+ * \li rtWORLDIMPORTPROGRESSBSPCOMPRESSSTART -
+ * The BSP compression process is about to start. The argument value
+ * is equal to 0.0.
+ * \li rtWORLDIMPORTPROGRESSBSPCOMPRESSUPDATE -
+ * The BSP compression has finished processing a subsection of the
+ * world. The argument value is equal to the percentage of the world
+ * processed up to this point.
+ * \li rtWORLDIMPORTPROGRESSBSPCOMPRESSEND -
+ * The BSP compression process has ended. The argument value is equal
+ * to 100.0.
+ *
+ * \param value The percentage of the progress made in either BSP
+ * building or BSP compression.
+ *
+ * \return TRUE to continue BSP processing, FALSE to abort.
+ *
+ * \see RtWorldImportSetProgressCallBack
+ */
+typedef RwBool (*RtWorldImportProgressCallBack)(RwInt32 msg, RwReal value);
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportDestroyVertexUserdataCallBack
+ *
+ * A pointer to the CallBack function that will be called during
+ * vertex destruction.
+ */
+typedef RwBool (*RtWorldImportDestroyVertexUserdataCallBack)(void **pUserdata);
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportCloneVertexUserdataCallBack
+ *
+ * A pointer to the CallBack function that will be called during
+ * vertex cloning.
+ */
+typedef RwBool (*RtWorldImportCloneVertexUserdataCallBack)(void **pUserdataDst, void **pUserdataSrc);
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportInterpVertexUserdataCallBack
+ *
+ * A pointer to the CallBack function that will be called during
+ * vertex interpolation.
+ */
+typedef RwBool (*RtWorldImportInterpVertexUserdataCallBack)(void **pUserdataDst, void **pUserdata1, void **pUserdata2, RwReal delta);
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportDestroyPolygonUserdataCallBack
+ *
+ * A pointer to the CallBack function that will be called during
+ * polygon destruction.
+ */
+typedef RwBool (*RtWorldImportDestroyPolygonUserdataCallBack)(void **pUserdata);
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportSplitPolygonUserdataCallBack
+ *
+ * A pointer to the CallBack function that will be called during
+ * polygon division.
+ */
+typedef RwBool (*RtWorldImportSplitPolygonUserdataCallBack)(void **pUserdataDst, void **pUserdataSrc);
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportSectorSetVertexUserdataCallBack
+ *
+ * A pointer to the CallBack function that will be called during
+ * the setting of the vertex user data.
+ */
+typedef RwBool (*RtWorldImportSectorSetVertexUserdataCallBack)(void **pUserdata, RpWorldSector *sector, RwInt32 index);
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportSectorSetPolygonUserdataCallBack
+ *
+ * A pointer to the CallBack function that will be called during
+ * the setting of the polygon user data.
+ */
+typedef RwBool (*RtWorldImportSectorSetPolygonUserdataCallBack)(void **pUserdata, RpWorldSector *sector, RwInt32 index);
+
+
+
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportTerminationBuildCallBack
+ *
+ * A pointer to the function that will be called during the
+ * build process to determine whether the current sector should
+ * be subdivided further, or terminated.
+ */
+typedef RwBool (*RtWorldImportTerminationBuildCallBack)
+ (RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ void *pData);
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportPartitionBuildCallBack
+ *
+ * A pointer to the function that will be called during the
+ * build process to select a suitable sector partition.
+ */
+typedef RwReal (*RtWorldImportPartitionBuildCallBack)
+ (RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void *pData);
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportBuildCallBacks
+ *
+ * typedef for struct \ref RtWorldImportBuildCallBacks
+ */
+typedef struct RtWorldImportBuildCallBacks RtWorldImportBuildCallBacks; /* MAYBE: rename to SectorCallBacks ?*/
+/**
+ * \ingroup rtimport
+ * \struct RtWorldImportBuildCallBacks
+ * Sectorization callbacks
+ */
+struct RtWorldImportBuildCallBacks
+{
+ RtWorldImportPartitionBuildCallBack partitionBuild;
+ /**< Callback for choosing partition */
+ void *partitionUserData;
+ /**< Partition callback user data */
+ RtWorldImportTerminationBuildCallBack terminationBuild;
+ /**< Callback for termination of further partitioning */
+ void *terminationUserData;
+ /**< Termination callback user data */
+};
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportUserdataCallBacks
+ *
+ * typedef for struct \ref RtWorldImportUserdataCallBacks
+ */
+typedef struct RtWorldImportUserdataCallBacks RtWorldImportUserdataCallBacks;
+/**
+ * \ingroup rtimport
+ * \struct RtWorldImportUserdataCallBacks
+ * Bundle of callbacks
+ */
+struct RtWorldImportUserdataCallBacks
+{
+ RtWorldImportDestroyVertexUserdataCallBack destroyVertexUserdata;
+ /**< Callback on vertex destruction */
+ RtWorldImportCloneVertexUserdataCallBack cloneVertexUserdata;
+ /**< Callback on vertex cloning */
+ RtWorldImportInterpVertexUserdataCallBack interpVertexUserdata;
+ /**< Callback on vertex interpolation */
+ RtWorldImportDestroyPolygonUserdataCallBack destroyPolygonUserdata;
+ /**< Callback on polygon destruction */
+ RtWorldImportSplitPolygonUserdataCallBack splitPolygonUserdata;
+ /**< Callback on polygon division */
+ RtWorldImportSectorSetVertexUserdataCallBack sectorSetVertexUserdata;
+ /**< Callback on setting vertex user data */
+ RtWorldImportSectorSetPolygonUserdataCallBack sectorSetPolygonUserdata;
+ /**< Callback on setting polygon user data */
+};
+
+/**
+ * \ingroup rtimport
+ * \typedef RtWorldImportBuildPartitionSelector
+ *
+ * An enumeration that can be passed to
+ * \ref RtWorldImportSetStandardBuildPartitionSelector to determine
+ * whether partitioning will be achieved automatically, using the
+ * default partition selected, or manually using the \ref RtWorldImportGuideKDTree
+ */
+typedef enum
+{
+ rwBUILDPARTITIONSELECTOR_DEFAULT,
+ /**< Sets the default automated process */
+ rwBUILDPARTITIONSELECTOR_GUIDED
+ /**< Sets the guided manual process */
+}
+RtWorldImportBuildPartitionSelector;
+
+
+
+
+/* Builds overlaps from plane and conversion params */
+#define BuildSectorSetOverlapsMacro(_boundingBox, _partition, _conversionParams) \
+MACRO_START \
+{ \
+ RwReal sup = GETCOORD((_boundingBox).sup, (_partition).type); \
+ RwReal inf = GETCOORD((_boundingBox).inf, (_partition).type); \
+ \
+ (_partition).maxLeftValue = \
+ (_partition).value + \
+ ((sup - (_partition).value) * (_conversionParams).maxOverlapPercent); \
+ \
+ (_partition).maxRightValue = \
+ (_partition).value - \
+ ((((_partition).value) - inf) * (_conversionParams).maxOverlapPercent); \
+} \
+MACRO_STOP
+
+/*****************************************************************************
+ * Function prototypes
+ */
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif /* __cplusplus */
+
+extern RwBool
+_rtImportBuildSectorFindBBox(RtWorldImportBuildSector *buildSector, RwBBox *bbpOut);
+
+/* TODO: decide where these scheme functions are going and which ones are public and
+ whether _rt or RT should be used */
+extern void
+ _rtWorldImportGuideKDCopy(RtWorldImportGuideKDTree *KD, RpSector *spSector, RwInt32 depth);
+extern void _rtWorldImportGuideKDStackDestroy(_rtWorldImportGuideKDStack *stack);
+extern void
+_rtWorldImportGuideKDEncodeAsStack(RtWorldImportGuideKDTree *tree, _rtWorldImportGuideKDStack *stack);
+
+extern RtWorldImportGuideKDTree *RtWorldImportGuideKDCreate(RwBBox *bbox);
+extern RtWorldImportGuideKDTree *RtWorldImportGuideKDAddPartition
+ (RtWorldImportGuideKDTree *KD, RwInt32 type, RwReal value);
+extern void RtWorldImportGuideKDDeletePartition(RtWorldImportGuideKDTree *KD);
+extern void RtWorldImportGuideKDDestroy(RtWorldImportGuideKDTree *KD);
+
+extern RtWorldImportGuideKDTree *RtWorldImportGuideKDWrite(
+ RtWorldImportGuideKDTree *guideKD, const RwChar *filename);
+extern RtWorldImportGuideKDTree * RtWorldImportGuideKDRead(
+ const RwChar *filename, const RwBBox *bbox);
+
+/*****************************************************************************
+ * PARTITION SELECTORS - These callbacks for used to select a partition
+ * from a sector.
+ */
+
+extern RwReal
+RtWorldImportBalancedCullPartitionSelector(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void *userData);
+
+extern RwReal
+RtWorldImportMaterialCountPartitionSelector(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void *userData);
+
+extern RwReal
+RtWorldImportMaterialSeparatePartitionSelector(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void *userData);
+
+extern RwReal
+RtWorldImportMaximumOccluderPartitionSelector(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData);
+
+extern RwReal
+RtWorldImportDisjointOccluderPartitionSelector(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData);
+
+extern RwReal
+RtWorldImportLeastCutAndBalancedPartitionSelector(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData);
+
+extern RwReal
+RtWorldImportMaximumExtentPartitionSelector(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData);
+
+extern RwReal
+RtWorldImportCullMiddleSpacePartitionSelector(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void *userData);
+
+extern RwReal
+RtWorldImportCullEndSpacePartitionSelector(RtWorldImportBuildSector * buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void *userData);
+
+extern RwReal
+RtWorldImportCullSpacePartitionSelector(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void *userData);
+
+extern RwReal
+RtWorldImportHintBBoxPartitionSelector(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void *userData);
+
+extern RwReal
+RtWorldImportGeneralOccluderPartitionSelector(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData);
+
+extern RwReal
+RtWorldImportBalancedTreePartitionSelector(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData);
+
+/*****************************************************************************
+ * PARTITION ITERATORS - These callbacks iterate though a set of partitions
+ */
+
+extern RwBool
+RtWorldImportOrthogonalAutoPartitionIterator(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData,
+ RwInt32* loopCounter);
+
+
+extern RwBool
+RtWorldImportRegularIntervalPartitionIterator(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData,
+ RwInt32* loopCounter);
+
+
+extern RwBool
+RtWorldImportMiddleAxisPartitionIterator(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData,
+ RwInt32 * loopCounter);
+
+
+extern RwBool
+RtWorldImportMedianPercentagePartitionIterator(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void *userData,
+ RwInt32 *loopCounter);
+
+
+extern RwBool
+RtWorldImportHintBBoxPartitionIterator(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData,
+ RwInt32* loopCounter);
+
+extern RwBool
+RtWorldImportHighestVertexAccommodatingPlanePartitionIterator(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus * buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData,
+ RwInt32* loopCounter);
+
+extern RwBool
+RtWorldImportMaterialBoundsPartitionIterator(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus * buildStatus,
+ RtWorldImportPartition *partition,
+ void *userData,
+ RwInt32 *loopCounter);
+
+/*****************************************************************************
+ * PARTITION EVALUATORS - These callbacks iterate though a set of partitions
+ */
+
+extern RwReal
+RtWorldImportFuzzyBalancedPartitionEvaluator(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void *userData);
+
+
+extern RwReal
+RtWorldImportPotentialSplitPartitionEvaluator(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData);
+
+
+extern RwReal
+RtWorldImportBalancedPartitionEvaluator(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData);
+
+
+extern RwReal
+RtWorldImportExtentPartitionEvaluator(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData);
+
+
+extern RwReal
+RtWorldImportOccluderPartitionEvaluator(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData);
+
+
+extern RwReal
+RtWorldImportWeightedOccluderPartitionEvaluator(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData);
+
+extern RwReal
+RtWorldImportHintBBoxPartitionEvaluator(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void *userData);
+
+extern RwReal
+RtWorldImportVolumeBalancedPartitionEvaluator(RtWorldImportBuildSector * buildSector,
+ RtWorldImportBuildStatus * buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData);
+
+extern RwReal
+RtWorldImportWeightedDisjointOccluderPartitionEvaluator(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData);
+
+extern RwReal
+RtWorldImportMaterialCutsPartitionEvaluator(RtWorldImportBuildSector * buildSector,
+ RtWorldImportBuildStatus * buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData);
+
+extern RwReal
+RtWorldImportMaterialBalancedPartitionEvaluator(RtWorldImportBuildSector * buildSector,
+ RtWorldImportBuildStatus *buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData);
+
+extern RwReal
+RtWorldImportAspectPartitionEvaluator(RtWorldImportBuildSector *buildSector,
+ RtWorldImportBuildStatus * buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData);
+
+extern RwReal
+RtWorldImportMaterialSeparatorPartitionEvaluator(RtWorldImportBuildSector * buildSector,
+ RtWorldImportBuildStatus * buildStatus,
+ RtWorldImportPartition *partition,
+ void * userData);
+/*****************************************************************************
+ * PARTITION TERMINATORS - These callbacks are used to decide when
+ * partitioning of a sector should stop
+ */
+extern RwBool
+RtWorldImportNeverPartitionTerminator(RtWorldImportBuildSector * buildSector,
+ RtWorldImportBuildStatus * buildStatus,
+ void * userData);
+
+extern RwBool
+RtWorldImportMaximumLegalPartitionTerminator(RtWorldImportBuildSector * buildSector,
+ RtWorldImportBuildStatus * __RWUNUSED__ buildStatus,
+ void * __RWUNUSED__ userData);
+
+extern RwBool
+RtWorldImportDefaultPartitionTerminator(RtWorldImportBuildSector * buildSector,
+ RtWorldImportBuildStatus * buildStatus,
+ void * pData);
+
+
+extern RwBool
+RtWorldImportDepthPartitionTerminator(RtWorldImportBuildSector * buildSector,
+ RtWorldImportBuildStatus * buildStatus,
+ void * userData);
+
+
+extern RwBool
+RtWorldImportSectorHeightPartitionTerminator(RtWorldImportBuildSector * buildSector,
+ RtWorldImportBuildStatus * buildStatus,
+ void * userData);
+
+extern RwBool
+RtWorldImportSizePartitionTerminator(RtWorldImportBuildSector * buildSector,
+ RtWorldImportBuildStatus * buildStatus,
+ void * userData);
+
+extern RwBool
+RtWorldImportSectorAspectSizePartitionTerminator(RtWorldImportBuildSector * buildSector,
+ RtWorldImportBuildStatus * buildStatus,
+ void * userData);
+
+
+
+/* END TODO */
+
+/* WorldImport hints */
+extern void
+RtWorldImportHintsSet(RtWorldImportHints *hints);
+
+extern RtWorldImportHints *
+RtWorldImportHintsGet(void);
+
+extern RtWorldImportHints *
+RtWorldImportHintsCreate(void);
+
+extern RwBool
+RtWorldImportHintsDestroy(RtWorldImportHints *hints);
+
+extern RtWorldImportHints *
+RtWorldImportHintsAddBoundingBoxes(RtWorldImportHints *hints, RwInt32 numBoundingBoxes);
+
+extern void
+RtWorldImportMaterialGroupHintGenerator(RtWorldImportBuildSector *buildSector,
+ RtWorldImportHints *materialGroupHints);
+
+/* Initializing the conversion structure */
+extern RtWorldImportParameters *RtWorldImportParametersInit(void);
+extern void RtWorldImportParametersSet(RtWorldImportParameters *params);
+extern RtWorldImportParameters *RtWorldImportParametersGet(void);
+
+
+extern RpWorld *RtWorldImportCreateWorld(RtWorldImport *
+ nohsworld,
+ RtWorldImportParameters
+ * conversionParams);
+
+extern RpGeometry *RtWorldImportCreateGeometry(RtWorldImport *
+ nohsworld,
+ RtWorldImportParameters
+ * conversionParams);
+
+extern RtWorldImport *RtWorldImportCreate(void);
+
+extern RwBool RtWorldImportDestroy(RtWorldImport * nohsworld);
+
+extern RtWorldImport *RtWorldImportAddNumVertices(RtWorldImport *
+ nohsworld,
+ RwInt32
+ numNewVertices);
+
+extern RtWorldImport *RtWorldImportAddNumTriangles(RtWorldImport *
+ nohsworld,
+ RwInt32
+ numNewTriangles);
+
+extern RpMaterial *RtWorldImportGetMaterial(RtWorldImport *
+ nohsworld,
+ RwInt32 matInd);
+
+extern RwInt32 RtWorldImportGetNumVertices(RtWorldImport * nohsworld);
+
+extern RtWorldImportVertex *RtWorldImportGetVertices(RtWorldImport *
+ nohsworld);
+
+extern RwInt32 RtWorldImportGetNumTriangles(RtWorldImport * nohsworld);
+
+extern RtWorldImportTriangle *
+RtWorldImportGetTriangles(RtWorldImport * nohsworld);
+
+/* Surface lighting characteristics */
+extern RtWorldImport *
+RtWorldImportSetSurfaceProperties(RtWorldImport * world,
+ RwSurfaceProperties *
+ surface);
+
+extern RwSurfaceProperties *
+RtWorldImportGetSurfaceProperties(RtWorldImport * world);
+
+/* Progress callbacks */
+extern void
+RtWorldImportSetProgressCallBack(RtWorldImportProgressCallBack CB);
+
+extern RpWorldSector * RtWorldImportGetNumMaterials(RpWorldSector *worldSector, void *data);
+
+extern void
+_rtImportWorldSendProgressMessage(RwInt32 msgtype, RwReal value);
+
+/* Reading and Writing */
+
+extern RtWorldImport *RtWorldImportWrite(RtWorldImport * world,
+ RwChar * filename);
+
+extern RtWorldImport *RtWorldImportRead(RwChar * filename);
+
+extern RwInt32 RtWorldImportAddMaterial(RtWorldImport * nohsworld,
+ RpMaterial * material);
+
+extern RwInt32 RtWorldImportGetMaterialIndex(RtWorldImport * nohsworld,
+ RpMaterial * material);
+
+extern RtWorldImport *RtWorldImportForAllMaterials(RtWorldImport *
+ nohsworld,
+ RpMaterialCallBack
+ fpCallBack,
+ void *pData);
+
+extern void
+RtWorldImportSetUserdataCallBacks(RtWorldImportDestroyVertexUserdataCallBack
+ destroyVertexUserdataCB,
+ RtWorldImportCloneVertexUserdataCallBack
+ cloneVertexUserdataCB,
+ RtWorldImportInterpVertexUserdataCallBack
+ interpVertexUserdataCB,
+ RtWorldImportSectorSetVertexUserdataCallBack
+ sectorSetVertexUserdata,
+ RtWorldImportDestroyPolygonUserdataCallBack
+ destroyPolygonUserdataCB,
+ RtWorldImportSplitPolygonUserdataCallBack
+ splitPolygonUserdataCB,
+ RtWorldImportSectorSetPolygonUserdataCallBack
+ sectorSetPolygonUserdata);
+
+extern void
+RtWorldImportSetBuildCallBacks(RtWorldImportPartitionBuildCallBack
+ partitionBuildCB,
+ RtWorldImportTerminationBuildCallBack
+ terminationBuildCB);
+
+extern void
+RtWorldImportSetPartitionStatistics(RtWorldImportBuildSector * buildSector,
+ RtWorldImportPartition * partition);
+
+extern void
+RtWorldImportSetBuildCallBacksUserData(void *partitionUserData,
+ void *terminateUserData);
+
+
+extern void
+RtWorldImportSetStandardBuildPartitionSelector(RtWorldImportBuildPartitionSelector partitionSelector, void* userData);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+
+#define RtWorldImportParametersInitialize(_paramsPtr) \
+ *(_paramsPtr) = *RtWorldImportParametersInit();
+
+
+
+#endif /* RTIMPORT_H */
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+