325 lines
10 KiB
C
325 lines
10 KiB
C
/*
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** THIS SOFTWARE IS SUBJECT TO COPYRIGHT PROTECTION AND IS OFFERED ONLY
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** PURSUANT TO THE 3DFX GLIDE GENERAL PUBLIC LICENSE. THERE IS NO RIGHT
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** TO USE THE GLIDE TRADEMARK WITHOUT PRIOR WRITTEN PERMISSION OF 3DFX
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** INTERACTIVE, INC. A COPY OF THIS LICENSE MAY BE OBTAINED FROM THE
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** DISTRIBUTOR OR BY CONTACTING 3DFX INTERACTIVE INC(info@3dfx.com).
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** THIS PROGRAM IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
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** EXPRESSED OR IMPLIED. SEE THE 3DFX GLIDE GENERAL PUBLIC LICENSE FOR A
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** FULL TEXT OF THE NON-WARRANTY PROVISIONS.
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**
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** USE, DUPLICATION OR DISCLOSURE BY THE GOVERNMENT IS SUBJECT TO
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** RESTRICTIONS AS SET FORTH IN SUBDIVISION (C)(1)(II) OF THE RIGHTS IN
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** TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 252.227-7013,
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** AND/OR IN SIMILAR OR SUCCESSOR CLAUSES IN THE FAR, DOD OR NASA FAR
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** SUPPLEMENT. UNPUBLISHED RIGHTS RESERVED UNDER THE COPYRIGHT LAWS OF
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** THE UNITED STATES.
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**
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** COPYRIGHT 3DFX INTERACTIVE, INC. 1999, ALL RIGHTS RESERVED
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**
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#ifndef __linux__
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#include <conio.h>
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#else
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#include <linutil.h>
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#endif
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#include <assert.h>
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#include <glide.h>
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#include "tlib.h"
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int hwconfig;
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static const char *version;
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static const char name[] = "test22";
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static const char purpose[] = "fog with multi-pass texturing";
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static const char usage[] = "-n <frames> -r <res>";
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int main( int argc, char **argv) {
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char match;
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char **remArgs;
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int rv;
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GrScreenResolution_t resolution = GR_RESOLUTION_640x480;
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float scrWidth = 640.0f;
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float scrHeight = 480.0f;
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int frames = -1;
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TlTexture baseTexture;
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unsigned long baseTextureAddr;
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TlTexture lightTexture;
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unsigned long lightTextureAddr;
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FxI32 ftsize = 0;
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GrFog_t *fogtable = NULL;
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TlVertex3D srcVerts[4];
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float distance, dDelta;
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FxU32 zrange[2];
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GrContext_t gc = 0;
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/* Initialize Glide */
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grGlideInit();
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assert( hwconfig = tlVoodooType() );
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/* Process Command Line Arguments */
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while ((rv = tlGetOpt(argc, argv, "nr", &match, &remArgs)) != 0) {
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if ( rv == -1 ) {
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printf( "Unrecognized command line argument\n" );
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printf( "%s %s\n", name, usage );
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printf( "Available resolutions:\n%s\n",
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tlGetResolutionList() );
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return -1;
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}
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switch( match ) {
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case 'n':
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frames = atoi( remArgs[0] );
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break;
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case 'r':
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resolution = tlGetResolutionConstant( remArgs[0],
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&scrWidth,
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&scrHeight );
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break;
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}
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}
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tlSetScreen( scrWidth, scrHeight );
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version = grGetString( GR_VERSION );
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printf( "%s:\n%s\n", name, purpose );
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printf( "%s\n", version );
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printf( "Resolution: %s\n", tlGetResolutionString( resolution ) );
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if ( frames == -1 ) {
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printf( "Press A Key To Begin Test.\n" );
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tlGetCH();
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}
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grSstSelect( 0 );
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gc = grSstWinOpen(tlGethWnd(),
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resolution,
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GR_REFRESH_60Hz,
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GR_COLORFORMAT_ABGR,
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GR_ORIGIN_LOWER_LEFT,
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2, 1 );
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if (!gc) {
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printf("Could not allocate glide fullscreen context.\n");
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goto __errExit;
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}
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tlConSet( 0.0f, 0.0f, 1.0f, 0.5f,
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60, 15, 0xffffff );
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/* Set up Render State - decal - bilinear - nearest mipmapping - fogging */
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grGet(GR_ZDEPTH_MIN_MAX, 8, (FxI32 *)zrange);
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grGet(GR_FOG_TABLE_ENTRIES, 4, &ftsize);
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fogtable = malloc(sizeof(GrFog_t)*ftsize);
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assert(fogtable);
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grVertexLayout(GR_PARAM_XY, 0, GR_PARAM_ENABLE);
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grVertexLayout(GR_PARAM_Q, GR_VERTEX_OOW_OFFSET << 2, GR_PARAM_ENABLE);
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grVertexLayout(GR_PARAM_ST0, GR_VERTEX_SOW_TMU0_OFFSET << 2, GR_PARAM_ENABLE);
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grColorCombine( GR_COMBINE_FUNCTION_SCALE_OTHER,
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GR_COMBINE_FACTOR_ONE,
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GR_COMBINE_LOCAL_NONE,
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GR_COMBINE_OTHER_TEXTURE,
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FXFALSE );
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grTexMipMapMode( GR_TMU0,
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GR_MIPMAP_NEAREST,
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FXFALSE );
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grTexFilterMode( GR_TMU0,
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GR_TEXTUREFILTER_BILINEAR,
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GR_TEXTUREFILTER_BILINEAR );
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grFogColorValue( 0x404040 );
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guFogGenerateExp( fogtable, .2f );
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grFogTable( fogtable );
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/* Load texture data into system ram */
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assert( tlLoadTexture( "decal1.3df",
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&baseTexture.info,
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&baseTexture.tableType,
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&baseTexture.tableData ) );
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assert( tlLoadTexture( "light.3df",
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&lightTexture.info,
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&lightTexture.tableType,
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&lightTexture.tableData ) );
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/* Download texture data to TMU */
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baseTextureAddr = grTexMinAddress( GR_TMU0 );
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grTexDownloadMipMap( GR_TMU0,
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baseTextureAddr,
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GR_MIPMAPLEVELMASK_BOTH,
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&baseTexture.info );
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if ( baseTexture.tableType != NO_TABLE ) {
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grTexDownloadTable( baseTexture.tableType,
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&baseTexture.tableData );
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}
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lightTextureAddr =
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baseTextureAddr +
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grTexTextureMemRequired( GR_MIPMAPLEVELMASK_BOTH,
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&baseTexture.info );
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grTexDownloadMipMap( GR_TMU0,
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lightTextureAddr,
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GR_MIPMAPLEVELMASK_BOTH,
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&lightTexture.info );
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if ( lightTexture.tableType != NO_TABLE ) {
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grTexDownloadTable( lightTexture.tableType,
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&lightTexture.tableData );
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}
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/* Initialize Source 3D data - Rectangle on X/Z Plane
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Centered about Y Axis
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0--1 Z+
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| | |
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2--3 - X+
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*/
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srcVerts[0].x = -0.5f, srcVerts[0].y = 0.0f, srcVerts[0].z = 0.5f, srcVerts[0].w = 1.0f;
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srcVerts[1].x = 0.5f, srcVerts[1].y = 0.0f, srcVerts[1].z = 0.5f, srcVerts[1].w = 1.0f;
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srcVerts[2].x = -0.5f, srcVerts[2].y = 0.0f, srcVerts[2].z = -0.5f, srcVerts[2].w = 1.0f;
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srcVerts[3].x = 0.5f, srcVerts[3].y = 0.0f, srcVerts[3].z = -0.5f, srcVerts[3].w = 1.0f;
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srcVerts[0].s = 0.0f, srcVerts[0].t = 0.0f;
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srcVerts[1].s = 1.0f, srcVerts[1].t = 0.0f;
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srcVerts[2].s = 0.0f, srcVerts[2].t = 1.0f;
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srcVerts[3].s = 1.0f, srcVerts[3].t = 1.0f;
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#define RED 0x000000ff
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#define BLUE 0x00ff0000
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#define MAX_DIST 10.0f
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#define MIN_DIST 1.0f
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distance = 1.0f;
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dDelta = 0.05f;
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tlConOutput( "Press any key to quit\n\n" );
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while( frames-- && tlOkToRender()) {
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GrVertex vtxA, vtxB, vtxC, vtxD;
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TlVertex3D xfVerts[4];
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TlVertex3D prjVerts[4];
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if (hwconfig == TL_VOODOORUSH) {
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tlGetDimsByConst(resolution,
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&scrWidth,
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&scrHeight );
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grClipWindow(0, 0, (FxU32) scrWidth, (FxU32) scrHeight);
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}
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grBufferClear( 0x00404040, 0, zrange[1] );
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/* 3D Transformations */
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/*----
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A-B
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C-D
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-----*/
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vtxA.oow = 1.0f;
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vtxB = vtxC = vtxD = vtxA;
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distance += dDelta;
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if ( distance > MAX_DIST ||
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distance < MIN_DIST ) {
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dDelta *= -1.0f;
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distance += dDelta;
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}
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tlSetMatrix( tlIdentity() );
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tlMultMatrix( tlXRotation( -90.0f ) );
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tlMultMatrix( tlTranslation( 0.0f, 0.0f, distance ) );
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tlTransformVertices( xfVerts, srcVerts, 4 );
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tlProjectVertices( prjVerts, xfVerts, 4 );
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vtxA.x = tlScaleX( prjVerts[0].x );
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vtxA.y = tlScaleY( prjVerts[0].y );
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vtxA.oow = 1.0f / prjVerts[0].w;
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vtxB.x = tlScaleX( prjVerts[1].x );
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vtxB.y = tlScaleY( prjVerts[1].y );
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vtxB.oow = 1.0f / prjVerts[1].w;
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vtxC.x = tlScaleX( prjVerts[2].x );
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vtxC.y = tlScaleY( prjVerts[2].y );
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vtxC.oow = 1.0f / prjVerts[2].w;
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vtxD.x = tlScaleX( prjVerts[3].x );
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vtxD.y = tlScaleY( prjVerts[3].y );
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vtxD.oow = 1.0f / prjVerts[3].w;
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vtxA.tmuvtx[0].sow = prjVerts[0].s * 255.0f * vtxA.oow;
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vtxA.tmuvtx[0].tow = prjVerts[0].t * 255.0f * vtxA.oow;
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vtxB.tmuvtx[0].sow = prjVerts[1].s * 255.0f * vtxB.oow;
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vtxB.tmuvtx[0].tow = prjVerts[1].t * 255.0f * vtxB.oow;
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vtxC.tmuvtx[0].sow = prjVerts[2].s * 255.0f * vtxC.oow;
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vtxC.tmuvtx[0].tow = prjVerts[2].t * 255.0f * vtxC.oow;
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vtxD.tmuvtx[0].sow = prjVerts[3].s * 255.0f * vtxD.oow;
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vtxD.tmuvtx[0].tow = prjVerts[3].t * 255.0f * vtxD.oow;
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/* Render First Pass */
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grTexCombine( GR_TMU0,
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GR_COMBINE_FUNCTION_LOCAL,
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GR_COMBINE_FACTOR_NONE,
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GR_COMBINE_FUNCTION_LOCAL,
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GR_COMBINE_FACTOR_NONE,
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FXFALSE,
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FXFALSE );
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grAlphaBlendFunction( GR_BLEND_ONE, GR_BLEND_ZERO,
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GR_BLEND_ONE, GR_BLEND_ZERO );
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grTexSource( GR_TMU0,
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baseTextureAddr,
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GR_MIPMAPLEVELMASK_BOTH,
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&baseTexture.info );
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grFogMode( GR_FOG_ADD2 | GR_FOG_WITH_TABLE_ON_W );
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grDrawTriangle( &vtxA, &vtxB, &vtxD );
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grDrawTriangle( &vtxA, &vtxD, &vtxC );
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/* Render Second Pass */
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grAlphaBlendFunction( GR_BLEND_ONE, GR_BLEND_PREFOG_COLOR,
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GR_BLEND_ZERO, GR_BLEND_ZERO );
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grTexSource( GR_TMU0,
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lightTextureAddr,
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GR_MIPMAPLEVELMASK_BOTH,
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&lightTexture.info );
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grFogMode( GR_FOG_MULT2 | GR_FOG_WITH_TABLE_ON_W );
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grDrawTriangle( &vtxA, &vtxB, &vtxD );
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grDrawTriangle( &vtxA, &vtxD, &vtxC );
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tlConRender();
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grBufferSwap( 1 );
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grFinish();
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while( tlKbHit() ) {
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switch( tlGetCH() ) {
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default:
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frames = 0;
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break;
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}
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}
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}
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free(fogtable);
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__errExit:
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grGlideShutdown();
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return 0;
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}
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