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The DOOM Classic for iPhone 1.0 source as released on November 3, 2009
This commit is contained in:
Travis Bradshaw
300
code/prboom/r_drawflush.inl
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300
code/prboom/r_drawflush.inl
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/* Emacs style mode select -*- C++ -*-
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*-----------------------------------------------------------------------------
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*
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*
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* PrBoom: a Doom port merged with LxDoom and LSDLDoom
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* based on BOOM, a modified and improved DOOM engine
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* Copyright (C) 1999 by
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* id Software, Chi Hoang, Lee Killough, Jim Flynn, Rand Phares, Ty Halderman
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* Copyright (C) 1999-2000 by
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* Jess Haas, Nicolas Kalkhof, Colin Phipps, Florian Schulze
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* Copyright 2005, 2006 by
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* Florian Schulze, Colin Phipps, Neil Stevens, Andrey Budko
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*
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*-----------------------------------------------------------------------------*/
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#if (R_DRAWCOLUMN_PIPELINE_BITS == 8)
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#define SCREENTYPE byte
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#define TOPLEFT byte_topleft
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#define PITCH byte_pitch
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#define TEMPBUF byte_tempbuf
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#elif (R_DRAWCOLUMN_PIPELINE_BITS == 15)
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#define SCREENTYPE unsigned short
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#define TOPLEFT short_topleft
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#define PITCH short_pitch
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#define TEMPBUF short_tempbuf
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#elif (R_DRAWCOLUMN_PIPELINE_BITS == 16)
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#define SCREENTYPE unsigned short
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#define TOPLEFT short_topleft
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#define PITCH short_pitch
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#define TEMPBUF short_tempbuf
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#elif (R_DRAWCOLUMN_PIPELINE_BITS == 32)
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#define SCREENTYPE unsigned int
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#define TOPLEFT int_topleft
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#define PITCH int_pitch
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#define TEMPBUF int_tempbuf
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#endif
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#if (R_DRAWCOLUMN_PIPELINE & RDC_TRANSLUCENT)
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#define GETDESTCOLOR8(col1, col2) (temptranmap[((col1)<<8)+(col2)])
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#define GETDESTCOLOR15(col1, col2) (GETBLENDED15_3268((col1), (col2)))
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#define GETDESTCOLOR16(col1, col2) (GETBLENDED16_3268((col1), (col2)))
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#define GETDESTCOLOR32(col1, col2) (GETBLENDED32_3268((col1), (col2)))
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#elif (R_DRAWCOLUMN_PIPELINE & RDC_FUZZ)
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#define GETDESTCOLOR8(col) (tempfuzzmap[6*256+(col)])
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#define GETDESTCOLOR15(col) GETBLENDED15_9406(col, 0)
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#define GETDESTCOLOR16(col) GETBLENDED16_9406(col, 0)
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#define GETDESTCOLOR32(col) GETBLENDED32_9406(col, 0)
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#else
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#define GETDESTCOLOR8(col) (col)
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#define GETDESTCOLOR15(col) (col)
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#define GETDESTCOLOR16(col) (col)
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#define GETDESTCOLOR32(col) (col)
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#endif
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#if (R_DRAWCOLUMN_PIPELINE & RDC_TRANSLUCENT)
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#if (R_DRAWCOLUMN_PIPELINE_BITS == 8)
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#define GETDESTCOLOR(col1, col2) GETDESTCOLOR8(col1, col2)
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#elif (R_DRAWCOLUMN_PIPELINE_BITS == 15)
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#define GETDESTCOLOR(col1, col2) GETDESTCOLOR15(col1, col2)
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#elif (R_DRAWCOLUMN_PIPELINE_BITS == 16)
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#define GETDESTCOLOR(col1, col2) GETDESTCOLOR16(col1, col2)
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#elif (R_DRAWCOLUMN_PIPELINE_BITS == 32)
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#define GETDESTCOLOR(col1, col2) GETDESTCOLOR32(col1, col2)
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#endif
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#else
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#if (R_DRAWCOLUMN_PIPELINE_BITS == 8)
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#define GETDESTCOLOR(col) GETDESTCOLOR8(col)
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#elif (R_DRAWCOLUMN_PIPELINE_BITS == 15)
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#define GETDESTCOLOR(col) GETDESTCOLOR15(col)
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#elif (R_DRAWCOLUMN_PIPELINE_BITS == 16)
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#define GETDESTCOLOR(col) GETDESTCOLOR16(col)
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#elif (R_DRAWCOLUMN_PIPELINE_BITS == 32)
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#define GETDESTCOLOR(col) GETDESTCOLOR32(col)
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#endif
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#endif
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//
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// R_FlushWholeOpaque
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//
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// Flushes the entire columns in the buffer, one at a time.
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// This is used when a quad flush isn't possible.
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// Opaque version -- no remapping whatsoever.
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//
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static void R_FLUSHWHOLE_FUNCNAME(void)
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{
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SCREENTYPE *source;
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SCREENTYPE *dest;
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int count, yl;
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while(--temp_x >= 0)
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{
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yl = tempyl[temp_x];
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source = &TEMPBUF[temp_x + (yl << 2)];
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dest = drawvars.TOPLEFT + yl*drawvars.PITCH + startx + temp_x;
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count = tempyh[temp_x] - yl + 1;
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while(--count >= 0)
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{
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#if (R_DRAWCOLUMN_PIPELINE & RDC_TRANSLUCENT)
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*dest = GETDESTCOLOR(*dest, *source);
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#elif (R_DRAWCOLUMN_PIPELINE & RDC_FUZZ)
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// SoM 7-28-04: Fix the fuzz problem.
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*dest = GETDESTCOLOR(dest[fuzzoffset[fuzzpos]]);
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// Clamp table lookup index.
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if(++fuzzpos == FUZZTABLE)
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fuzzpos = 0;
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#else
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*dest = *source;
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#endif
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source += 4;
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dest += drawvars.PITCH;
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}
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}
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}
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//
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// R_FlushHTOpaque
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//
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// Flushes the head and tail of columns in the buffer in
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// preparation for a quad flush.
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// Opaque version -- no remapping whatsoever.
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//
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static void R_FLUSHHEADTAIL_FUNCNAME(void)
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{
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SCREENTYPE *source;
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SCREENTYPE *dest;
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int count, colnum = 0;
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int yl, yh;
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while(colnum < 4)
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{
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yl = tempyl[colnum];
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yh = tempyh[colnum];
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// flush column head
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if(yl < commontop)
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{
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source = &TEMPBUF[colnum + (yl << 2)];
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dest = drawvars.TOPLEFT + yl*drawvars.PITCH + startx + colnum;
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count = commontop - yl;
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while(--count >= 0)
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{
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#if (R_DRAWCOLUMN_PIPELINE & RDC_TRANSLUCENT)
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// haleyjd 09/11/04: use temptranmap here
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*dest = GETDESTCOLOR(*dest, *source);
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#elif (R_DRAWCOLUMN_PIPELINE & RDC_FUZZ)
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// SoM 7-28-04: Fix the fuzz problem.
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*dest = GETDESTCOLOR(dest[fuzzoffset[fuzzpos]]);
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// Clamp table lookup index.
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if(++fuzzpos == FUZZTABLE)
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fuzzpos = 0;
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#else
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*dest = *source;
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#endif
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source += 4;
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dest += drawvars.PITCH;
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}
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}
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// flush column tail
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if(yh > commonbot)
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{
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source = &TEMPBUF[colnum + ((commonbot + 1) << 2)];
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dest = drawvars.TOPLEFT + (commonbot + 1)*drawvars.PITCH + startx + colnum;
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count = yh - commonbot;
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while(--count >= 0)
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{
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#if (R_DRAWCOLUMN_PIPELINE & RDC_TRANSLUCENT)
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// haleyjd 09/11/04: use temptranmap here
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*dest = GETDESTCOLOR(*dest, *source);
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#elif (R_DRAWCOLUMN_PIPELINE & RDC_FUZZ)
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// SoM 7-28-04: Fix the fuzz problem.
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*dest = GETDESTCOLOR(dest[fuzzoffset[fuzzpos]]);
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// Clamp table lookup index.
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if(++fuzzpos == FUZZTABLE)
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fuzzpos = 0;
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#else
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*dest = *source;
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#endif
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source += 4;
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dest += drawvars.PITCH;
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}
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}
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++colnum;
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}
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}
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static void R_FLUSHQUAD_FUNCNAME(void)
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{
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SCREENTYPE *source = &TEMPBUF[commontop << 2];
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SCREENTYPE *dest = drawvars.TOPLEFT + commontop*drawvars.PITCH + startx;
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int count;
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#if (R_DRAWCOLUMN_PIPELINE & RDC_FUZZ)
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int fuzz1, fuzz2, fuzz3, fuzz4;
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fuzz1 = fuzzpos;
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fuzz2 = (fuzz1 + tempyl[1]) % FUZZTABLE;
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fuzz3 = (fuzz2 + tempyl[2]) % FUZZTABLE;
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fuzz4 = (fuzz3 + tempyl[3]) % FUZZTABLE;
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#endif
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count = commonbot - commontop + 1;
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#if (R_DRAWCOLUMN_PIPELINE & RDC_TRANSLUCENT)
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while(--count >= 0)
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{
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dest[0] = GETDESTCOLOR(dest[0], source[0]);
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dest[1] = GETDESTCOLOR(dest[1], source[1]);
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dest[2] = GETDESTCOLOR(dest[2], source[2]);
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dest[3] = GETDESTCOLOR(dest[3], source[3]);
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source += 4 * sizeof(byte);
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dest += drawvars.PITCH * sizeof(byte);
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}
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#elif (R_DRAWCOLUMN_PIPELINE & RDC_FUZZ)
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while(--count >= 0)
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{
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dest[0] = GETDESTCOLOR(dest[0 + fuzzoffset[fuzz1]]);
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dest[1] = GETDESTCOLOR(dest[1 + fuzzoffset[fuzz2]]);
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dest[2] = GETDESTCOLOR(dest[2 + fuzzoffset[fuzz3]]);
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dest[3] = GETDESTCOLOR(dest[3 + fuzzoffset[fuzz4]]);
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fuzz1 = (fuzz1 + 1) % FUZZTABLE;
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fuzz2 = (fuzz2 + 1) % FUZZTABLE;
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fuzz3 = (fuzz3 + 1) % FUZZTABLE;
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fuzz4 = (fuzz4 + 1) % FUZZTABLE;
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source += 4 * sizeof(byte);
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dest += drawvars.PITCH * sizeof(byte);
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}
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#else
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#if (R_DRAWCOLUMN_PIPELINE_BITS == 8)
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if ((sizeof(int) == 4) && (((int)source % 4) == 0) && (((int)dest % 4) == 0)) {
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while(--count >= 0)
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{
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*(int *)dest = *(int *)source;
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source += 4 * sizeof(byte);
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dest += drawvars.PITCH * sizeof(byte);
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}
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} else {
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while(--count >= 0)
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{
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dest[0] = source[0];
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dest[1] = source[1];
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dest[2] = source[2];
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dest[3] = source[3];
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source += 4 * sizeof(byte);
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dest += drawvars.PITCH * sizeof(byte);
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}
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}
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#else
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while(--count >= 0)
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{
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dest[0] = source[0];
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dest[1] = source[1];
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dest[2] = source[2];
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dest[3] = source[3];
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source += 4;
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dest += drawvars.PITCH;
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}
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#endif
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#endif
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}
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#undef GETDESTCOLOR32
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#undef GETDESTCOLOR16
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#undef GETDESTCOLOR15
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#undef GETDESTCOLOR8
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#undef GETDESTCOLOR
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#undef TEMPBUF
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#undef PITCH
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#undef TOPLEFT
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#undef SCREENTYPE
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#undef R_DRAWCOLUMN_PIPELINE_BITS
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#undef R_DRAWCOLUMN_PIPELINE
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#undef R_FLUSHWHOLE_FUNCNAME
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#undef R_FLUSHHEADTAIL_FUNCNAME
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#undef R_FLUSHQUAD_FUNCNAME
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