mirror of
https://github.com/scp-fs2open/fs2open.github.com.git
synced 2026-11-11 04:31:35 -10:00
randomtiger
19bef23d16
OK, these changes effect a lot of file, I suggest everyone updates ASAP: Removal of many files from project. Removal of meanless Gr_bitmap_poly variable. Removal of glide, directdraw, software modules all links to them, and all code specific to those paths. Removal of redundant Fred paths that arent needed for Fred OGL. Have seriously tidied the graphics initialisation code and added generic non standard mode functionality. Fixed many D3D non standard mode bugs and brought OGL up to the same level. Removed texture section support for D3D8, voodoo 2 and 3 cards will no longer run under fs2_open in D3D, same goes for any card with a maximum texture size less than 1024.
129 lines
2.8 KiB
C++
129 lines
2.8 KiB
C++
/*
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* Copyright (C) Volition, Inc. 1999. All rights reserved.
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*
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* All source code herein is the property of Volition, Inc. You may not sell
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* or otherwise commercially exploit the source or things you created based on the
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* source.
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*
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*/
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/*
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* $Logfile: /Freespace2/code/Graphics/GrZbuffer.cpp $
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* $Revision: 2.2 $
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* $Date: 2004-02-14 00:18:32 $
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* $Author: randomtiger $
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*
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* Code for the software renderer's zbuffer
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*
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* $Log: not supported by cvs2svn $
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* Revision 2.1 2002/08/01 01:41:05 penguin
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* The big include file move
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*
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* Revision 2.0 2002/06/03 04:02:23 penguin
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* Warpcore CVS sync
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*
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* Revision 1.2 2002/05/08 02:36:01 mharris
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* porting
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*
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* Revision 1.1 2002/05/02 18:03:07 mharris
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* Initial checkin - converted filenames and includes to lower case
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*
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*
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* 2 10/07/98 10:53a Dave
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* Initial checkin.
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*
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* 1 10/07/98 10:49a Dave
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*
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* 1 3/25/98 8:07p John
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* Split software renderer into Win32 and DirectX
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*
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* $NoKeywords: $
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*/
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#include "globalincs/pstypes.h"
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#include "osapi/osapi.h"
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#include "graphics/2d.h"
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#include "math/floating.h"
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#include "graphics/grinternal.h"
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int gr_zcount=GR_Z_COUNT;
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int gr_zoffset=0;
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uint *gr_zbuffer = NULL;
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int gr_zbuffer_w = 0;
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int gr_zbuffer_h = 0;
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int gr_zbuffering = 0;
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int gr_zbuffering_mode = 0;
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int gr_global_zbuffering = 0;
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// If mode is FALSE, turn zbuffer off the entire frame,
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// no matter what people pass to gr_zbuffer_set.
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void gr8_zbuffer_clear(int mode)
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{
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if ( mode ) {
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gr_zbuffering = 1;
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gr_zbuffering_mode = GR_ZBUFF_FULL;
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gr_global_zbuffering = 1;
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if ( (!gr_zbuffer) || (gr_screen.max_w!=gr_zbuffer_w) || (gr_screen.max_h!=gr_zbuffer_h) ) {
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//mprintf(( "Allocating a %d x %d zbuffer\n", gr_screen.max_w, gr_screen.max_h ));
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if ( gr_zbuffer ) {
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free(gr_zbuffer);
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gr_zbuffer = NULL;
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}
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gr_zbuffer_w = gr_screen.max_w;
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gr_zbuffer_h = gr_screen.max_h;
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gr_zbuffer = (uint *)malloc(gr_zbuffer_w*gr_zbuffer_h*sizeof(uint));
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if ( !gr_zbuffer ) {
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Error( LOCATION, "Couldn't allocate zbuffer\n" );
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gr_zbuffering = 0;
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return;
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}
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memset( gr_zbuffer, 0, gr_zbuffer_w*gr_zbuffer_h*sizeof(uint) );
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}
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gr_zcount++;
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gr_zoffset += GR_Z_RANGE;
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if ( gr_zcount >= (GR_Z_COUNT-16) ) {
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//mprintf(( "Bing!\n" ));
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memset( gr_zbuffer, 0, gr_zbuffer_w*gr_zbuffer_h*sizeof(uint) );
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gr_zcount = 0;
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gr_zoffset = GR_Z_RANGE*16;
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}
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} else {
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gr_zbuffering = 0;
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gr_zbuffering_mode = GR_ZBUFF_NONE;
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gr_global_zbuffering = 0;
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}
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}
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int gr8_zbuffer_get()
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{
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if ( !gr_global_zbuffering ) {
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return GR_ZBUFF_NONE;
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}
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return gr_zbuffering_mode;
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}
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int gr8_zbuffer_set(int mode)
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{
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if ( !gr_global_zbuffering ) {
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gr_zbuffering = 0;
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return GR_ZBUFF_NONE;
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}
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int tmp = gr_zbuffering_mode;
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gr_zbuffering_mode = mode;
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if ( gr_zbuffering_mode == GR_ZBUFF_NONE ) {
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gr_zbuffering = 0;
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} else {
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gr_zbuffering = 1;
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}
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return tmp;
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}
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