ref: c7cca52323edfc8c8792bc75829e853689bb94ec
dir: /d_iface.h/
// d_iface.h: interface header file for rasterization driver modules
#define MAX_LBM_HEIGHT 480
typedef struct
{
float u, v, s, t, zi;
} emitpoint_t;
typedef enum {
pt_static, pt_grav, pt_slowgrav, pt_fire, pt_explode, pt_explode2, pt_blob, pt_blob2
} ptype_t;
// !!! if this is changed, it must be changed in d_ifacea.h too !!!
typedef struct particle_s
{
// driver-usable fields
vec3_t org;
pixel_t color;
// drivers never touch the following fields
struct particle_s *next;
vec3_t vel;
float ramp;
float die;
ptype_t type;
} particle_t;
extern particle_t *active_particles, *free_particles;
#define PARTICLE_Z_CLIP 8.0
// !!! if this is changed, it must be changed in d_ifacea.h too !!!
typedef struct finalvert_s {
union {
struct {
int u, v, s, t, zi;
int l[3];
};
int x[5+3];
};
int flags;
} finalvert_t;
// !!! if this is changed, it must be changed in d_ifacea.h too !!!
typedef struct
{
pixel_t *pskin;
maliasskindesc_t *pskindesc;
int skinwidth;
int skinheight;
mtriangle_t *ptriangles;
finalvert_t *pfinalverts;
int numtriangles;
int drawtype;
int seamfixupX16;
} affinetridesc_t;
typedef struct
{
int nump;
emitpoint_t *pverts; // there's room for an extra element at [nump],
// if the driver wants to duplicate element [0] at
// element [nump] to avoid dealing with wrapping
mspriteframe_t *pspriteframe;
vec3_t vup, vright, vpn; // in worldspace
float nearzi;
} spritedesc_t;
extern int r_framecount; // sequence # of current frame since Quake
// started
extern bool r_recursiveaffinetriangles; // true if a driver wants to use
// recursive triangular subdivison
// and vertex drawing via
// D_PolysetDrawFinalVerts() past
// a certain distance (normally
// only used by the software
// driver)
extern float r_aliasuvscale; // scale-up factor for screen u and v
// on Alias vertices passed to driver
extern bool r_dowarp;
extern affinetridesc_t r_affinetridesc;
extern spritedesc_t r_spritedesc;
extern vec3_t r_pright, r_pup, r_ppn;
void D_PolysetDraw (pixel_t *colormap);
void D_PolysetDrawFinalVerts (finalvert_t *fv, int numverts, pixel_t *colormap, byte alpha);
void D_DrawParticle (particle_t *pparticle);
void D_DrawPoly (void);
void D_DrawSprite (void);
void D_DrawSurfaces (void);
void D_Init (void);
void D_ViewChanged (void);
void D_SetupFrame (void);
void D_WarpScreen (void);
void D_DrawRect (void);
// currently for internal use only, and should be a do-nothing function in
// hardware drivers
// FIXME: this should go away
void D_PolysetUpdateTables (void);
// these are currently for internal use only, and should not be used by drivers
extern pixel_t *r_skysource[2];
// transparency types for D_DrawRect ()
#define DR_SOLID 0
#define DR_TRANSPARENT 1
extern void *acolormap; // FIXME: should go away
//=======================================================================//
// callbacks to Quake
typedef struct
{
pixel_t *surfdat; // destination for generated surface
int rowbytes; // destination logical width in bytes
msurface_t *surf; // description for surface to generate
fixed8_t lightadj[MAXLIGHTMAPS];
// adjust for lightmap levels for dynamic lighting
texture_t *texture; // corrected for animating textures
int surfmip; // mipmapped ratio of surface texels / world pixels
int surfwidth; // in mipmapped texels
int surfheight; // in mipmapped texels
} drawsurf_t;
extern drawsurf_t r_drawsurf;
void R_DrawSurface (void);
// !!! if this is changed, it must be changed in d_ifacea.h too !!!
#define TURB_TEX_SIZE 64 // base turbulent texture size
// !!! if this is changed, it must be changed in d_ifacea.h too !!!
#define CYCLE 128 // turbulent cycle size
#define TILE_SIZE 128 // size of textures generated by R_GenTiledSurf
extern float skyspeed;
extern float skytime;
extern int c_surf;
extern vrect_t scr_vrect;
extern pixel_t *r_warpbuffer;