quakeforge/include/QF/render.h

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/*
render.h
public interface to refresh functions
Copyright (C) 1996-1997 Id Software, Inc.
This program 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 2
of the License, or (at your option) any later version.
This program 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 this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
#ifndef __QF_render_h
#define __QF_render_h
#include "QF/mathlib.h"
#include "QF/model.h"
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#include "QF/qdefs.h" // FIXME for MAX_STYLESTRING
#include "QF/vid.h"
#include "QF/simd/types.h"
#include "QF/ui/vrect.h"
typedef enum {
part_tex_dot,
part_tex_spark,
part_tex_smoke,
} ptextype_t;
typedef struct particle_s particle_t;
// !!! if this is changed, it must be changed in d_ifacea.h too !!!
struct particle_s {
vec4f_t pos;
vec4f_t vel;
union {
struct {
int icolor;
int pad[2];
float alpha;
};
vec4f_t color;
};
ptextype_t tex;
float ramp;
float scale;
float live;
};
typedef struct partparm_s {
vec4f_t drag; // drag[3] is grav scale
float ramp;
float ramp_max;
float scale_rate;
float alpha_rate;
} partparm_t;
typedef struct psystem_s {
vec4f_t gravity;
uint32_t maxparticles;
uint32_t numparticles;
particle_t *particles;
partparm_t *partparams;
const int **partramps;
int points_only;
} psystem_t;
extern struct vid_render_funcs_s *r_funcs;
extern struct vid_render_data_s *r_data;
typedef struct subpic_s {
const struct subpic_s *const next;
const struct scrap_s *const scrap; ///< renderer specific type
const struct vrect_s *const rect;
const int width; ///< requested width
const int height; ///< requested height
const float size; ///< size factor for tex coords (mult)
} subpic_t;
// dynamic lights ===========================================================
typedef struct dlight_s
{
int key; // so entities can reuse same entry
vec3_t origin;
float radius;
float die; // stop lighting after this time
float decay; // drop this each second
float minlight; // don't add when contributing less
float color[4];
} dlight_t;
extern dlight_t *r_dlights;
extern unsigned int r_maxdlights;
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typedef struct
{
int length;
char map[MAX_STYLESTRING];
char average;
char peak;
} lightstyle_t;
//===============
typedef union refframe_s {
mat4f_t mat;
struct {
vec4f_t right;
vec4f_t forward;
vec4f_t up;
vec4f_t position;
};
} refframe_t;
/** Generic frame buffer object.
*
* For attaching scene cameras to render targets.
*/
typedef struct framebuffer_s {
unsigned width;
unsigned height;
void *buffer; ///< renderer-specific frame buffer data
} framebuffer_t;
// !!! if this is changed, it must be changed in asm_draw.h too !!!
typedef struct {
float fvrectx_adj, fvrecty_adj; // left and top edges, for clamping
float fvrectright_adj, fvrectbottom_adj;
int aliasvrectleft, aliasvrecttop; // scaled Alias versions
int aliasvrectright, aliasvrectbottom; // scaled Alias versions
int vrectright, vrectbottom; // right & bottom screen coords
int vrectx_adj_shift20; // (vrect.x + 0.5 - epsilon) << 20
int vrectright_adj_shift20; // (vrectright + 0.5 - epsilon) << 20
float fvrectx, fvrecty; // for floating-point compares
// right and bottom edges, for clamping
float fvrectright; // rightmost edge, for Alias clamping
float fvrectbottom; // bottommost edge, for Alias clamping
// end of asm refs
//FIXME move all of below elsewhere
vrect_t vrect; // subwindow in video for refresh
refframe_t frame;
plane_t frustum[4];
mat4f_t camera;
mat4f_t camera_inverse;
int ambientlight;
int drawflat;
struct ecs_registry_s *registry;
struct model_s *worldmodel;
} refdef_t;
// REFRESH ====================================================================
extern struct texture_s *r_notexture_mip;
void R_Init (void);
struct vid_internal_s;
void R_LoadModule (struct vid_internal_s *vid_internal);
struct progs_s;
void R_Progs_Init (struct progs_s *pr);
dlight_t *R_AllocDlight (int key);
void R_DecayLights (double frametime);
void Fog_Update (float density, float red, float green, float blue,
float time);
struct plitem_s;
void Fog_ParseWorldspawn (struct plitem_s *worldspawn);
void Fog_GetColor (quat_t fogcolor);
float Fog_GetDensity (void) __attribute__((pure));
void Fog_SetupFrame (void);
void Fog_StartAdditive (void);
void Fog_StopAdditive (void);
void Fog_Init (void);
#endif//__QF_render_h