source: proiecte/pmake3d/make3d_original/Make3dSingleImageStanford_version0.1/third_party/vrippack-0.31/src/march/shd.h @ 37

/********** shading - 3-d shading map **********/

/* Copyright 1990 by Marc Levoy - all rights reserved */

/* The following declarations show the layout of the .shd file.              */
/* If changed, the version number must be incremented and code               */
/* written to handle loading of both old and current versions.               */

                                /* Version for new .shd files:               */
#define SHD_CUR_VERSION 1       /*   Initial release                         */
short shd_version;              /* Version of this .shd file                 */

short shd_len[NM];              /* Size of this shading map                  */

long shd_length;                /* Total number of shades & opacities in map */
                                /*   (= (ICSIZE+1) * product of lens)        */
PIXEL *shd_address;             /* Pointer to shading map                    */

/* End of layout of .shd file.                                               */

                                /* Subscripted access to shading map         */
                                /*   (ICSIZE+1 chars at each IX,IY,IZ)       */
#define SHD_ADDRESS(IZ,IY,IX,C) (shd_address+\
                                 (((IZ)*shd_len[Y]+(IY))*shd_len[X]+(IX))*\
                                 (ICSIZE+1)+(C))
#define SHD(IZ,IY,IX,C)         (*SHD_ADDRESS(IZ,IY,IX,C))

short out_shd_len[NM];          /* Size of output shading map                */
long out_shd_length;            /* Total number of shades & opacities in map */
PIXEL *out_shd_address;         /* Pointer to map                            */

                                /* Subscripted access to output map          */
#define OUT_SHD_ADDRESS(IZ,IY,IX,C)     \
                                (out_shd_address+\
                                 (((IZ)*out_shd_len[Y]+\
                                   (IY))*out_shd_len[X]+\
                                  (IX))*(ICSIZE+1)+(C))
#define OUT_SHD(IZ,IY,IX,C)     (*OUT_SHD_ADDRESS(IZ,IY,IX,C))

short acc_shd_len[NM];          /* Size of 3-d shading accumulator           */
long acc_shd_length;            /* Total number of shades & opacities        */
WPIXELSUM *acc_shd_address;     /* Pointer to accumulator                    */

                                /* Subscripted access to accumulator         */
#define ACC_SHD_ADDRESS(IZ,IY,IX,C)     \
                                (acc_shd_address+\
                                 (((IZ)*acc_shd_len[Y]+\
                                   (IY))*acc_shd_len[X]+\
                                  (IX))*(ICSIZE+1)+(C))
#define ACC_SHD(IZ,IY,IX,C)     (*ACC_SHD_ADDRESS(IZ,IY,IX,C))

BOOLEAN shd_histogram_exists;                   /* True if histogram exists  */
long shading_color_histogram[MAX_PIXEL+1];      /* Histogram of shading map  */
long shading_opacity_histogram[MAX_PIXEL+1];    /*                           */