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/*
XSW Image Sets
Image set referances (abbriviated isref) used by the
client to display objects on the view screen.
*/
#ifndef ISREFS_H
#define ISREFS_H
#include <db.h>
#include <sys/types.h>
/*
* Maximum isrefs per client.
*/
#define ISREF_MAX 500
/*
* Maximum frames per isref.
*/
#define ISREF_FRAMES_MAX 16
/*
* Option flags:
*/
#define ISREF_OPT_HAS_TRANSPARENCY (1 << 2)
#define ISREF_OPT_NO_IMAGE (1 << 3)
#define ISREF_OPT_STAY_LOADED (1 << 4)
/*
* Special isref numbers:
*
* These numbers are for special isrefs that
* are handled differently.
*/
#define ISREF_DEFAULT 0
/*
* Isrefs 10 to 19 are for stream weapons.
* Note: No graphical images are used for these isrefs.
*/
#define ISREF_STREAMWEAPON_YELLOW 10
#define ISREF_STREAMWEAPON_GREEN 11
#define ISREF_STREAMWEAPON_PURPLE 12
#define ISREF_STREAMWEAPON_ORANGE 13
/*
* Isrefs 20 to 29 are for special effects (such as explosions).
*/
#define ISREF_EXPLOSION_LARGE 20
#define ISREF_EXPLOSION_SMALL 21
/*
* Image format codes:
*/
#define ISREF_FORMAT_CODE_UNKNOWN 0
#define ISREF_FORMAT_CODE_TGA 1
/*
* Load progress codes:
*/
#define ISREF_LOAD_PROGRESS_DONE 0
#define ISREF_LOAD_PROGRESS_LOADING 1
/*
* Merge modes:
*
* Determines the mathimatical operation applied to the
* isref being blitted on to the buffer.
*/
#define ISREF_MERGE_NORMAL 0
#define ISREF_MERGE_ADDITIVE 1
#define ISREF_MERGE_SUBTRACTIVE 2
#define ISREF_MERGE_MIRAGE 3
#define ISREF_MERGE_MULTIPLY 4
/*
* Has transparency:
*
* If an isref has transparency set to ISREF_HASTRANSPARENT, the
* blitting functions will check for transparent pixel
* r = 0x00, g = 0x00, and b = 0x00.
*
* This will help to boost blitting speed by not checking transparency
* on isrefs that don't intend to have transparency.
*/
#define ISREF_NOTRANSPARENT 0
#define ISREF_HASTRANSPARENT 1
/*
* Frame determinat:
*
* Determines how and where the frame number will be
* calculated from.
*/
#define ISREF_FDETERMINE_BY_HEADING 0
#define ISREF_FDETERMINE_BY_ANIMATION 1
/*
* Layer Placement
*
* These are codes for determining the value for the member
* layer_placement of the isref_struct.
*
* When an isref's layer_placement is set to any of the
* background codes then it will be visible as long as
* the 'viewport' is within it's size.
*/
#define ISREF_LAYER_FG 0 /* Normal object in foreground. */
#define ISREF_LAYER_BG_TILED 1
#define ISREF_LAYER_BG_STATIC 2
/*
* Special effects:
*
* These are codes for determining the value for the member
* effects of the isref_struct.
*/
#define ISREF_EFFECTS_STARGLOW (1 << 1)
#define ISREF_EFFECTS_FADEINGLOW (1 << 2)
#define ISREF_EFFECTS_FADEOUTGLOW (1 << 3)
/*
* Data types:
*/
typedef u_int64_t isref_options_mask_t;
typedef u_int64_t isref_effects_mask_t;
/*
* Point light structure:
*
* Used for drawing vector, hazard, and strobe lights.
*
* Point lights should be drawn after the image is blitted.
*
* The angle theta is relative to the object's north, not
* the galactic core north.
*/
typedef struct {
/* Relative position. */
double theta; /* Bearing angle from object center. */
double radius; /* In Screen units. */
/* Color. */
u_int8_t a, r, g, b;
/* Strobe intervals, set all to 0 for no strobing. */
char strobe_state; /* True = on, False = off. */
long strobe_off_int, /* In milliseconds. */
strobe_on_int, /* In milliseconds. */
strobe_next; /* In milliseconds. */
} isref_point_light_struct;
/*
* ISRef core structure:
*/
typedef struct {
char *filename; /* Absolute path to the image file. */
int load_progress; /* One of ISREF_LOAD_PROGRESS_*. */
/* Options. */
isref_options_mask_t option;
/* Calculation methoids. */
int merge_mode; /* One of ISREF_MERGE_*. */
int frame_determinant; /* One of ISREF_FDETERMINE_*. */
int layer_placement; /* One of ISREF_LAYER_*. */
isref_effects_mask_t effects; /* Special effects. */
double magnification; /* Magnification, must be 1 or greater. */
/* Size and frame attributes. */
unsigned int total_frames;
unsigned int width, /* Total width and height. */
height;
unsigned int fwidth, /* Frame width and height. */
fheight;
/* Allocated structure containing image library data.
* Pointer type determined by format_code.
* This must be freed after calling library structure destroy
* routine (as only it's substructures are deallocated by
* library routine).
*/
void *lib_data;
/* Format code for member lib_data, One of ISREF_FORMAT_CODE_*. */
int format_code;
/* Pointer to image data in lib_data, do not free this!
* The call to the image library function will do that.
*/
u_int8_t *image_data;
/* Point lights. */
isref_point_light_struct **point_light;
int total_point_lights;
} isref_struct;
extern isref_struct **isref;
extern long total_isrefs;
#endif /* ISREFS_H */
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