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Annotation of quakeworld/client/d_local.h, revision 1.1

1.1     ! root        1: /*
        !             2: Copyright (C) 1996-1997 Id Software, Inc.
        !             3: 
        !             4: This program is free software; you can redistribute it and/or
        !             5: modify it under the terms of the GNU General Public License
        !             6: as published by the Free Software Foundation; either version 2
        !             7: of the License, or (at your option) any later version.
        !             8: 
        !             9: This program is distributed in the hope that it will be useful,
        !            10: but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            11: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  
        !            12: 
        !            13: See the GNU General Public License for more details.
        !            14: 
        !            15: You should have received a copy of the GNU General Public License
        !            16: along with this program; if not, write to the Free Software
        !            17: Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
        !            18: 
        !            19: */
        !            20: // d_local.h:  private rasterization driver defs
        !            21: 
        !            22: #include "r_shared.h"
        !            23: 
        !            24: //
        !            25: // TODO: fine-tune this; it's based on providing some overage even if there
        !            26: // is a 2k-wide scan, with subdivision every 8, for 256 spans of 12 bytes each
        !            27: //
        !            28: #define SCANBUFFERPAD          0x1000
        !            29: 
        !            30: #define R_SKY_SMASK    0x007F0000
        !            31: #define R_SKY_TMASK    0x007F0000
        !            32: 
        !            33: #define DS_SPAN_LIST_END       -128
        !            34: 
        !            35: #define SURFCACHE_SIZE_AT_320X200      600*1024
        !            36: 
        !            37: typedef struct surfcache_s
        !            38: {
        !            39:        struct surfcache_s      *next;
        !            40:        struct surfcache_s      **owner;                // NULL is an empty chunk of memory
        !            41:        int                                     lightadj[MAXLIGHTMAPS]; // checked for strobe flush
        !            42:        int                                     dlight;
        !            43:        int                                     size;           // including header
        !            44:        unsigned                        width;
        !            45:        unsigned                        height;         // DEBUG only needed for debug
        !            46:        float                           mipscale;
        !            47:        struct texture_s        *texture;       // checked for animating textures
        !            48:        byte                            data[4];        // width*height elements
        !            49: } surfcache_t;
        !            50: 
        !            51: // !!! if this is changed, it must be changed in asm_draw.h too !!!
        !            52: typedef struct sspan_s
        !            53: {
        !            54:        int                             u, v, count;
        !            55: } sspan_t;
        !            56: 
        !            57: extern cvar_t  d_subdiv16;
        !            58: 
        !            59: extern float   scale_for_mip;
        !            60: 
        !            61: extern qboolean                d_roverwrapped;
        !            62: extern surfcache_t     *sc_rover;
        !            63: extern surfcache_t     *d_initial_rover;
        !            64: 
        !            65: extern float   d_sdivzstepu, d_tdivzstepu, d_zistepu;
        !            66: extern float   d_sdivzstepv, d_tdivzstepv, d_zistepv;
        !            67: extern float   d_sdivzorigin, d_tdivzorigin, d_ziorigin;
        !            68: 
        !            69: fixed16_t      sadjust, tadjust;
        !            70: fixed16_t      bbextents, bbextentt;
        !            71: 
        !            72: 
        !            73: void D_DrawSpans8 (espan_t *pspans);
        !            74: void D_DrawSpans16 (espan_t *pspans);
        !            75: void D_DrawZSpans (espan_t *pspans);
        !            76: void Turbulent8 (espan_t *pspan);
        !            77: void D_SpriteDrawSpans (sspan_t *pspan);
        !            78: 
        !            79: void D_DrawSkyScans8 (espan_t *pspan);
        !            80: void D_DrawSkyScans16 (espan_t *pspan);
        !            81: 
        !            82: void R_ShowSubDiv (void);
        !            83: void (*prealspandrawer)(void);
        !            84: surfcache_t    *D_CacheSurface (msurface_t *surface, int miplevel);
        !            85: 
        !            86: extern int D_MipLevelForScale (float scale);
        !            87: 
        !            88: #if id386
        !            89: extern void D_PolysetAff8Start (void);
        !            90: extern void D_PolysetAff8End (void);
        !            91: #endif
        !            92: 
        !            93: extern short *d_pzbuffer;
        !            94: extern unsigned int d_zrowbytes, d_zwidth;
        !            95: 
        !            96: extern int     *d_pscantable;
        !            97: extern int     d_scantable[MAXHEIGHT];
        !            98: 
        !            99: extern int     d_vrectx, d_vrecty, d_vrectright_particle, d_vrectbottom_particle;
        !           100: 
        !           101: extern int     d_y_aspect_shift, d_pix_min, d_pix_max, d_pix_shift;
        !           102: 
        !           103: extern pixel_t *d_viewbuffer;
        !           104: 
        !           105: extern short   *zspantable[MAXHEIGHT];
        !           106: 
        !           107: extern int             d_minmip;
        !           108: extern float   d_scalemip[3];
        !           109: 
        !           110: extern void (*d_drawspans) (espan_t *pspan);
        !           111: 

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