mirror of
https://github.com/KartKrewDev/RingRacers.git
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40cbc30bff
All my work thus far on solving the drawflag/renderflag/additive/subtractive conundrum. Outstandng problems: * Bad additive/subtractive tables means that they appear opaque except under certain conditions. * No support for FOFs, Polyobjects, or linedefs in OpenGL yet. * All OpenGL support mostly done blind, may or may not function in practice. If nothing else, the hard engineering problems are solved and it's just bug hammering...
103 lines
2.8 KiB
C
103 lines
2.8 KiB
C
// SONIC ROBO BLAST 2
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//-----------------------------------------------------------------------------
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// Copyright (C) 1993-1996 by id Software, Inc.
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// Copyright (C) 1998-2000 by DooM Legacy Team.
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// Copyright (C) 1999-2020 by Sonic Team Junior.
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//
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// This program is free software distributed under the
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// terms of the GNU General Public License, version 2.
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// See the 'LICENSE' file for more details.
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//-----------------------------------------------------------------------------
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/// \file r_textures.h
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/// \brief Texture generation.
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#ifndef __R_TEXTURES__
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#define __R_TEXTURES__
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#include "r_defs.h"
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#include "r_state.h"
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#include "p_setup.h" // levelflats
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#include "r_data.h"
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#ifdef __GNUG__
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#pragma interface
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#endif
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// A single patch from a texture definition,
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// basically a rectangular area within
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// the texture rectangle.
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typedef struct
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{
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// Block origin (always UL), which has already accounted for the internal origin of the patch.
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INT16 originx, originy;
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UINT16 wad, lump;
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UINT8 flip; // 1 = flipx, 2 = flipy, 3 = both
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UINT8 alpha; // Translucency value
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patchalphastyle_t style;
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} texpatch_t;
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// texture type
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enum
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{
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TEXTURETYPE_UNKNOWN,
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TEXTURETYPE_SINGLEPATCH,
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TEXTURETYPE_COMPOSITE,
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#ifdef WALLFLATS
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TEXTURETYPE_FLAT,
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#endif
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};
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// A texture_t describes a rectangular texture,
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// which is composed of one or more texpatch_t structures
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// that arrange graphic patches.
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typedef struct
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{
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// Keep name for switch changing, etc.
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char name[8];
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UINT8 type; // TEXTURETYPE_
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INT16 width, height;
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boolean holes;
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UINT8 flip; // 1 = flipx, 2 = flipy, 3 = both
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void *flat; // The texture, as a flat.
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// All the patches[patchcount] are drawn back to front into the cached texture.
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INT16 patchcount;
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texpatch_t patches[0];
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} texture_t;
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// all loaded and prepared textures from the start of the game
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extern texture_t **textures;
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extern INT32 *texturewidth;
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extern fixed_t *textureheight; // needed for texture pegging
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extern UINT32 **texturecolumnofs; // column offset lookup table for each texture
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extern UINT8 **texturecache; // graphics data for each generated full-size texture
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// Load TEXTURES definitions, create lookup tables
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void R_LoadTextures(void);
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void R_FlushTextureCache(void);
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// Texture generation
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UINT8 *R_GenerateTexture(size_t texnum);
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UINT8 *R_GenerateTextureAsFlat(size_t texnum);
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INT32 R_GetTextureNum(INT32 texnum);
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void R_CheckTextureCache(INT32 tex);
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void R_ClearTextureNumCache(boolean btell);
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// Retrieve texture data.
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void *R_GetLevelFlat(levelflat_t *levelflat);
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UINT8 *R_GetColumn(fixed_t tex, INT32 col);
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void *R_GetFlat(lumpnum_t flatnum);
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boolean R_CheckPowersOfTwo(void);
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void R_CheckFlatLength(size_t size);
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// Returns the texture number for the texture name.
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INT32 R_TextureNumForName(const char *name);
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INT32 R_CheckTextureNumForName(const char *name);
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lumpnum_t R_GetFlatNumForName(const char *name);
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extern INT32 numtextures;
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#endif
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