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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5131 | clevermous | 1 | /* |
| 2 | Copyright (C) 1996-1997 Id Software, Inc. |
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| 3 | |||
| 4 | This program is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU General Public License |
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| 6 | as published by the Free Software Foundation; either version 2 |
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| 7 | of the License, or (at your option) any later version. |
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| 8 | |||
| 9 | This program is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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| 12 | |||
| 13 | See the GNU General Public License for more details. |
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| 14 | |||
| 15 | You should have received a copy of the GNU General Public License |
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| 16 | along with this program; if not, write to the Free Software |
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| 17 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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| 18 | |||
| 19 | */ |
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| 20 | // d_local.h: private rasterization driver defs |
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| 21 | |||
| 22 | #include "r_shared.h" |
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| 23 | |||
| 24 | // |
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| 25 | // TODO: fine-tune this; it's based on providing some overage even if there |
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| 26 | // is a 2k-wide scan, with subdivision every 8, for 256 spans of 12 bytes each |
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| 27 | // |
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| 28 | #define SCANBUFFERPAD 0x1000 |
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| 29 | |||
| 30 | #define R_SKY_SMASK 0x007F0000 |
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| 31 | #define R_SKY_TMASK 0x007F0000 |
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| 32 | |||
| 33 | #define DS_SPAN_LIST_END -128 |
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| 34 | |||
| 35 | #define SURFCACHE_SIZE_AT_320X200 600*1024 |
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| 36 | |||
| 37 | typedef struct surfcache_s |
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| 38 | { |
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| 39 | struct surfcache_s *next; |
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| 40 | struct surfcache_s **owner; // NULL is an empty chunk of memory |
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| 41 | int lightadj[MAXLIGHTMAPS]; // checked for strobe flush |
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| 42 | int dlight; |
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| 43 | int size; // including header |
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| 44 | unsigned width; |
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| 45 | unsigned height; // DEBUG only needed for debug |
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| 46 | float mipscale; |
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| 47 | struct texture_s *texture; // checked for animating textures |
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| 48 | byte data[4]; // width*height elements |
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| 49 | } surfcache_t; |
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| 50 | |||
| 51 | // !!! if this is changed, it must be changed in asm_draw.h too !!! |
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| 52 | typedef struct sspan_s |
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| 53 | { |
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| 54 | int u, v, count; |
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| 55 | } sspan_t; |
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| 56 | |||
| 57 | extern cvar_t d_subdiv16; |
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| 58 | |||
| 59 | extern float scale_for_mip; |
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| 60 | |||
| 61 | extern qboolean d_roverwrapped; |
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| 62 | extern surfcache_t *sc_rover; |
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| 63 | extern surfcache_t *d_initial_rover; |
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| 64 | |||
| 65 | extern float d_sdivzstepu, d_tdivzstepu, d_zistepu; |
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| 66 | extern float d_sdivzstepv, d_tdivzstepv, d_zistepv; |
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| 67 | extern float d_sdivzorigin, d_tdivzorigin, d_ziorigin; |
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| 68 | |||
| 69 | fixed16_t sadjust, tadjust; |
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| 70 | fixed16_t bbextents, bbextentt; |
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| 71 | |||
| 72 | |||
| 73 | void D_DrawSpans8 (espan_t *pspans); |
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| 74 | void D_DrawSpans16 (espan_t *pspans); |
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| 75 | void D_DrawZSpans (espan_t *pspans); |
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| 76 | void Turbulent8 (espan_t *pspan); |
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| 77 | void D_SpriteDrawSpans (sspan_t *pspan); |
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| 78 | |||
| 79 | void D_DrawSkyScans8 (espan_t *pspan); |
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| 80 | void D_DrawSkyScans16 (espan_t *pspan); |
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| 81 | |||
| 82 | void R_ShowSubDiv (void); |
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| 83 | void (*prealspandrawer)(void); |
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| 84 | surfcache_t *D_CacheSurface (msurface_t *surface, int miplevel); |
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| 85 | |||
| 86 | extern int D_MipLevelForScale (float scale); |
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| 87 | |||
| 88 | #if id386 |
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| 89 | extern void D_PolysetAff8Start (void); |
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| 90 | extern void D_PolysetAff8End (void); |
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| 91 | #endif |
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| 92 | |||
| 93 | extern short *d_pzbuffer; |
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| 94 | extern unsigned int d_zrowbytes, d_zwidth; |
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| 95 | |||
| 96 | extern int *d_pscantable; |
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| 97 | extern int d_scantable[MAXHEIGHT]; |
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| 98 | |||
| 99 | extern int d_vrectx, d_vrecty, d_vrectright_particle, d_vrectbottom_particle; |
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| 100 | |||
| 101 | extern int d_y_aspect_shift, d_pix_min, d_pix_max, d_pix_shift; |
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| 102 | |||
| 103 | extern pixel_t *d_viewbuffer; |
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| 104 | |||
| 105 | extern short *zspantable[MAXHEIGHT]; |
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| 106 | |||
| 107 | extern int d_minmip; |
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| 108 | extern float d_scalemip[3]; |
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| 109 | |||
| 110 | extern void (*d_drawspans) (espan_t *pspan); |
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| 111 |