diff options
Diffstat (limited to 'demos/3rdparty/doom/v_video.c')
| -rw-r--r-- | demos/3rdparty/doom/v_video.c | 493 |
1 files changed, 0 insertions, 493 deletions
diff --git a/demos/3rdparty/doom/v_video.c b/demos/3rdparty/doom/v_video.c deleted file mode 100644 index 55f3e94f..00000000 --- a/demos/3rdparty/doom/v_video.c +++ /dev/null @@ -1,493 +0,0 @@ -// Emacs style mode select -*- C++ -*- -//----------------------------------------------------------------------------- -// -// $Id:$ -// -// Copyright (C) 1993-1996 by id Software, Inc. -// -// This source is available for distribution and/or modification -// only under the terms of the DOOM Source Code License as -// published by id Software. All rights reserved. -// -// The source is distributed in the hope that it will be useful, -// but WITHOUT ANY WARRANTY; without even the implied warranty of -// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License -// for more details. -// -// $Log:$ -// -// DESCRIPTION: -// Gamma correction LUT stuff. -// Functions to draw patches (by post) directly to screen. -// Functions to blit a block to the screen. -// -//----------------------------------------------------------------------------- - - -static const char -rcsid[] = "$Id: v_video.c,v 1.5 1997/02/03 22:45:13 b1 Exp $"; - - -#include "i_system.h" -#include "r_local.h" - -#include "doomdef.h" -#include "doomdata.h" - -#include "m_bbox.h" -#include "m_swap.h" - -#include "v_video.h" - - -// Each screen is [SCREENWIDTH*SCREENHEIGHT]; -byte* screens[5]; - -int dirtybox[4]; - - - -// Now where did these came from? -byte gammatable[5][256] = -{ - {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16, - 17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32, - 33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48, - 49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64, - 65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80, - 81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96, - 97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112, - 113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128, - 128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143, - 144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159, - 160,161,162,163,164,165,166,167,168,169,170,171,172,173,174,175, - 176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191, - 192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207, - 208,209,210,211,212,213,214,215,216,217,218,219,220,221,222,223, - 224,225,226,227,228,229,230,231,232,233,234,235,236,237,238,239, - 240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255}, - - {2,4,5,7,8,10,11,12,14,15,16,18,19,20,21,23,24,25,26,27,29,30,31, - 32,33,34,36,37,38,39,40,41,42,44,45,46,47,48,49,50,51,52,54,55, - 56,57,58,59,60,61,62,63,64,65,66,67,69,70,71,72,73,74,75,76,77, - 78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98, - 99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114, - 115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,129, - 130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145, - 146,147,148,148,149,150,151,152,153,154,155,156,157,158,159,160, - 161,162,163,163,164,165,166,167,168,169,170,171,172,173,174,175, - 175,176,177,178,179,180,181,182,183,184,185,186,186,187,188,189, - 190,191,192,193,194,195,196,196,197,198,199,200,201,202,203,204, - 205,205,206,207,208,209,210,211,212,213,214,214,215,216,217,218, - 219,220,221,222,222,223,224,225,226,227,228,229,230,230,231,232, - 233,234,235,236,237,237,238,239,240,241,242,243,244,245,245,246, - 247,248,249,250,251,252,252,253,254,255}, - - {4,7,9,11,13,15,17,19,21,22,24,26,27,29,30,32,33,35,36,38,39,40,42, - 43,45,46,47,48,50,51,52,54,55,56,57,59,60,61,62,63,65,66,67,68,69, - 70,72,73,74,75,76,77,78,79,80,82,83,84,85,86,87,88,89,90,91,92,93, - 94,95,96,97,98,100,101,102,103,104,105,106,107,108,109,110,111,112, - 113,114,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128, - 129,130,131,132,133,133,134,135,136,137,138,139,140,141,142,143,144, - 144,145,146,147,148,149,150,151,152,153,153,154,155,156,157,158,159, - 160,160,161,162,163,164,165,166,166,167,168,169,170,171,172,172,173, - 174,175,176,177,178,178,179,180,181,182,183,183,184,185,186,187,188, - 188,189,190,191,192,193,193,194,195,196,197,197,198,199,200,201,201, - 202,203,204,205,206,206,207,208,209,210,210,211,212,213,213,214,215, - 216,217,217,218,219,220,221,221,222,223,224,224,225,226,227,228,228, - 229,230,231,231,232,233,234,235,235,236,237,238,238,239,240,241,241, - 242,243,244,244,245,246,247,247,248,249,250,251,251,252,253,254,254, - 255}, - - {8,12,16,19,22,24,27,29,31,34,36,38,40,41,43,45,47,49,50,52,53,55, - 57,58,60,61,63,64,65,67,68,70,71,72,74,75,76,77,79,80,81,82,84,85, - 86,87,88,90,91,92,93,94,95,96,98,99,100,101,102,103,104,105,106,107, - 108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124, - 125,126,127,128,129,130,131,132,133,134,135,135,136,137,138,139,140, - 141,142,143,143,144,145,146,147,148,149,150,150,151,152,153,154,155, - 155,156,157,158,159,160,160,161,162,163,164,165,165,166,167,168,169, - 169,170,171,172,173,173,174,175,176,176,177,178,179,180,180,181,182, - 183,183,184,185,186,186,187,188,189,189,190,191,192,192,193,194,195, - 195,196,197,197,198,199,200,200,201,202,202,203,204,205,205,206,207, - 207,208,209,210,210,211,212,212,213,214,214,215,216,216,217,218,219, - 219,220,221,221,222,223,223,224,225,225,226,227,227,228,229,229,230, - 231,231,232,233,233,234,235,235,236,237,237,238,238,239,240,240,241, - 242,242,243,244,244,245,246,246,247,247,248,249,249,250,251,251,252, - 253,253,254,254,255}, - - {16,23,28,32,36,39,42,45,48,50,53,55,57,60,62,64,66,68,69,71,73,75,76, - 78,80,81,83,84,86,87,89,90,92,93,94,96,97,98,100,101,102,103,105,106, - 107,108,109,110,112,113,114,115,116,117,118,119,120,121,122,123,124, - 125,126,128,128,129,130,131,132,133,134,135,136,137,138,139,140,141, - 142,143,143,144,145,146,147,148,149,150,150,151,152,153,154,155,155, - 156,157,158,159,159,160,161,162,163,163,164,165,166,166,167,168,169, - 169,170,171,172,172,173,174,175,175,176,177,177,178,179,180,180,181, - 182,182,183,184,184,185,186,187,187,188,189,189,190,191,191,192,193, - 193,194,195,195,196,196,197,198,198,199,200,200,201,202,202,203,203, - 204,205,205,206,207,207,208,208,209,210,210,211,211,212,213,213,214, - 214,215,216,216,217,217,218,219,219,220,220,221,221,222,223,223,224, - 224,225,225,226,227,227,228,228,229,229,230,230,231,232,232,233,233, - 234,234,235,235,236,236,237,237,238,239,239,240,240,241,241,242,242, - 243,243,244,244,245,245,246,246,247,247,248,248,249,249,250,250,251, - 251,252,252,253,254,254,255,255} -}; - - - -int usegamma; - -// -// V_MarkRect -// -void -V_MarkRect -( int x, - int y, - int width, - int height ) -{ - M_AddToBox (dirtybox, x, y); - M_AddToBox (dirtybox, x+width-1, y+height-1); -} - - -// -// V_CopyRect -// -void -V_CopyRect -( int srcx, - int srcy, - int srcscrn, - int width, - int height, - int destx, - int desty, - int destscrn ) -{ - byte* src; - byte* dest; - -#ifdef RANGECHECK - if (srcx<0 - ||srcx+width >SCREENWIDTH - || srcy<0 - || srcy+height>SCREENHEIGHT - ||destx<0||destx+width >SCREENWIDTH - || desty<0 - || desty+height>SCREENHEIGHT - || (unsigned)srcscrn>4 - || (unsigned)destscrn>4) - { - I_Error ("Bad V_CopyRect"); - } -#endif - V_MarkRect (destx, desty, width, height); - - src = screens[srcscrn]+SCREENWIDTH*srcy+srcx; - dest = screens[destscrn]+SCREENWIDTH*desty+destx; - - for ( ; height>0 ; height--) - { - memcpy (dest, src, width); - src += SCREENWIDTH; - dest += SCREENWIDTH; - } -} - - -// -// V_DrawPatch -// Masks a column based masked pic to the screen. -// -void -V_DrawPatch -( int x, - int y, - int scrn, - patch_t* patch ) -{ - - int count; - int col; - column_t* column; - byte* desttop; - byte* dest; - byte* source; - int w; - - y -= SHORT(patch->topoffset); - x -= SHORT(patch->leftoffset); -#ifdef RANGECHECK - if (x<0 - ||x+SHORT(patch->width) >SCREENWIDTH - || y<0 - || y+SHORT(patch->height)>SCREENHEIGHT - || (unsigned)scrn>4) - { - I_DBGprintf("Patch at %d,%d exceeds LFB\n", x,y ); - // No I_Error abort - what is up with TNT.WAD? - I_DBGprintf("V_DrawPatch: bad patch (ignored)\n"); - return; - } -#endif - - if (!scrn) - V_MarkRect (x, y, SHORT(patch->width), SHORT(patch->height)); - - col = 0; - desttop = screens[scrn]+y*SCREENWIDTH+x; - - w = SHORT(patch->width); - - for ( ; col<w ; x++, col++, desttop++) - { - column = (column_t *)((byte *)patch + LONG(patch->columnofs[col])); - - // step through the posts in a column - while (column->topdelta != 0xff ) - { - source = (byte *)column + 3; - dest = desttop + column->topdelta*SCREENWIDTH; - count = column->length; - - while (count--) - { - *dest = *source++; - dest += SCREENWIDTH; - } - column = (column_t *)( (byte *)column + column->length - + 4 ); - } - } -} - -// -// V_DrawPatchFlipped -// Masks a column based masked pic to the screen. -// Flips horizontally, e.g. to mirror face. -// -void -V_DrawPatchFlipped -( int x, - int y, - int scrn, - patch_t* patch ) -{ - - int count; - int col; - column_t* column; - byte* desttop; - byte* dest; - byte* source; - int w; - - y -= SHORT(patch->topoffset); - x -= SHORT(patch->leftoffset); -#ifdef RANGECHECK - if (x<0 - ||x+SHORT(patch->width) >SCREENWIDTH - || y<0 - || y+SHORT(patch->height)>SCREENHEIGHT - || (unsigned)scrn>4) - { - I_DBGprintf("Patch origin %d,%d exceeds LFB\n", x,y ); - I_Error ("Bad V_DrawPatch in V_DrawPatchFlipped"); - } -#endif - - if (!scrn) - V_MarkRect (x, y, SHORT(patch->width), SHORT(patch->height)); - - col = 0; - desttop = screens[scrn]+y*SCREENWIDTH+x; - - w = SHORT(patch->width); - - for ( ; col<w ; x++, col++, desttop++) - { - column = (column_t *)((byte *)patch + LONG(patch->columnofs[w-1-col])); - - // step through the posts in a column - while (column->topdelta != 0xff ) - { - source = (byte *)column + 3; - dest = desttop + column->topdelta*SCREENWIDTH; - count = column->length; - - while (count--) - { - *dest = *source++; - dest += SCREENWIDTH; - } - column = (column_t *)( (byte *)column + column->length - + 4 ); - } - } -} - - - -// -// V_DrawPatchDirect -// Draws directly to the screen on the pc. -// -void -V_DrawPatchDirect -( int x, - int y, - int scrn, - patch_t* patch ) -{ - V_DrawPatch (x,y,scrn, patch); - - /* - int count; - int col; - column_t* column; - byte* desttop; - byte* dest; - byte* source; - int w; - - y -= SHORT(patch->topoffset); - x -= SHORT(patch->leftoffset); - -#ifdef RANGECHECK - if (x<0 - ||x+SHORT(patch->width) >SCREENWIDTH - || y<0 - || y+SHORT(patch->height)>SCREENHEIGHT - || (unsigned)scrn>4) - { - I_Error ("Bad V_DrawPatchDirect"); - } -#endif - - // V_MarkRect (x, y, SHORT(patch->width), SHORT(patch->height)); - desttop = destscreen + y*SCREENWIDTH/4 + (x>>2); - - w = SHORT(patch->width); - for ( col = 0 ; col<w ; col++) - { - outp (SC_INDEX+1,1<<(x&3)); - column = (column_t *)((byte *)patch + LONG(patch->columnofs[col])); - - // step through the posts in a column - - while (column->topdelta != 0xff ) - { - source = (byte *)column + 3; - dest = desttop + column->topdelta*SCREENWIDTH/4; - count = column->length; - - while (count--) - { - *dest = *source++; - dest += SCREENWIDTH/4; - } - column = (column_t *)( (byte *)column + column->length - + 4 ); - } - if ( ((++x)&3) == 0 ) - desttop++; // go to next byte, not next plane - }*/ -} - - - -// -// V_DrawBlock -// Draw a linear block of pixels into the view buffer. -// -void -V_DrawBlock -( int x, - int y, - int scrn, - int width, - int height, - byte* src ) -{ - byte* dest; - -#ifdef RANGECHECK - if (x<0 - ||x+width >SCREENWIDTH - || y<0 - || y+height>SCREENHEIGHT - || (unsigned)scrn>4 ) - { - I_Error ("Bad V_DrawBlock"); - } -#endif - - V_MarkRect (x, y, width, height); - - dest = screens[scrn] + y*SCREENWIDTH+x; - - while (height--) - { - memcpy (dest, src, width); - src += width; - dest += SCREENWIDTH; - } -} - - - -// -// V_GetBlock -// Gets a linear block of pixels from the view buffer. -// -void -V_GetBlock -( int x, - int y, - int scrn, - int width, - int height, - byte* dest ) -{ - byte* src; - -#ifdef RANGECHECK - if (x<0 - ||x+width >SCREENWIDTH - || y<0 - || y+height>SCREENHEIGHT - || (unsigned)scrn>4 ) - { - I_Error ("Bad V_DrawBlock"); - } -#endif - - src = screens[scrn] + y*SCREENWIDTH+x; - - while (height--) - { - memcpy (dest, src, width); - src += SCREENWIDTH; - dest += width; - } -} - - - - -// -// V_Init -// -void V_Init (void) -{ - int i; - byte* base; - - // stick these in low dos memory on PCs - - base = I_AllocLow (SCREENWIDTH*SCREENHEIGHT*4); - - for (i=0 ; i<4 ; i++) - screens[i] = base + i*SCREENWIDTH*SCREENHEIGHT; -} |