SRB2/src/r_data.h

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// SONIC ROBO BLAST 2
//-----------------------------------------------------------------------------
// Copyright (C) 1993-1996 by id Software, Inc.
// Copyright (C) 1998-2000 by DooM Legacy Team.
// Copyright (C) 1999-2016 by Sonic Team Junior.
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//
// This program is free software distributed under the
// terms of the GNU General Public License, version 2.
// See the 'LICENSE' file for more details.
//-----------------------------------------------------------------------------
/// \file r_data.h
/// \brief Refresh module, data I/O, caching, retrieval of graphics by name
#ifndef __R_DATA__
#define __R_DATA__
#include "r_defs.h"
#include "r_state.h"
#ifdef __GNUG__
#pragma interface
#endif
// Possible alpha types for a patch.
enum patchalphastyle {AST_COPY, AST_TRANSLUCENT}; // , AST_ADD, AST_SUBTRACT, AST_REVERSESUBTRACT, AST_MODULATE, AST_OVERLAY};
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// moved here for r_sky.c (texpatch_t is used)
// A single patch from a texture definition,
// basically a rectangular area within
// the texture rectangle.
typedef struct
{
// Block origin (always UL), which has already accounted for the internal origin of the patch.
INT16 originx, originy;
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UINT16 wad, lump;
UINT8 flip; // 1 = flipx, 2 = flipy, 3 = both
UINT8 alpha; // Translucency value
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enum patchalphastyle style;
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} texpatch_t;
// A maptexturedef_t describes a rectangular texture,
// which is composed of one or more mappatch_t structures
// that arrange graphic patches.
typedef struct
{
// Keep name for switch changing, etc.
char name[8];
INT16 width, height;
boolean holes;
UINT8 flip; // 1 = flipx, 2 = flipy, 3 = both
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// All the patches[patchcount] are drawn back to front into the cached texture.
INT16 patchcount;
texpatch_t patches[0];
} texture_t;
// all loaded and prepared textures from the start of the game
extern texture_t **textures;
// texture width is a power of 2, so it can easily repeat along sidedefs using a simple mask
extern INT32 *texturewidthmask;
extern fixed_t *textureheight; // needed for texture pegging
extern INT16 color8to16[256]; // remap color index to highcolor
extern INT16 *hicolormaps; // remap high colors to high colors..
extern CV_PossibleValue_t Color_cons_t[];
// Load TEXTURES definitions, create lookup tables
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void R_LoadTextures(void);
void R_FlushTextureCache(void);
INT32 R_GetTextureNum(INT32 texnum);
void R_CheckTextureCache(INT32 tex);
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// Retrieve column data for span blitting.
UINT8 *R_GetColumn(fixed_t tex, INT32 col);
UINT8 *R_GetFlat(lumpnum_t flatnum);
// I/O, setting up the stuff.
void R_InitData(void);
void R_PrecacheLevel(void);
// Retrieval.
// Floor/ceiling opaque texture tiles,
// lookup by name. For animation?
lumpnum_t R_GetFlatNumForName(const char *name);
#define R_FlatNumForName(x) R_GetFlatNumForName(x)
// Called by P_Ticker for switches and animations,
// returns the texture number for the texture name.
void R_ClearTextureNumCache(boolean btell);
INT32 R_TextureNumForName(const char *name);
INT32 R_CheckTextureNumForName(const char *name);
void R_ReInitColormaps(UINT16 num);
void R_ClearColormaps(void);
INT32 R_ColormapNumForName(char *name);
lighttable_t *R_CreateLightTable(extracolormap_t *extra_colormap);
extracolormap_t *R_CreateColormap(char *p1, char *p2, char *p3);
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const char *R_ColormapNameForNum(INT32 num);
extern INT32 numtextures;
#endif