291 lines
8.6 KiB
C
291 lines
8.6 KiB
C
/*
|
|
** THIS SOFTWARE IS SUBJECT TO COPYRIGHT PROTECTION AND IS OFFERED ONLY
|
|
** PURSUANT TO THE 3DFX GLIDE GENERAL PUBLIC LICENSE. THERE IS NO RIGHT
|
|
** TO USE THE GLIDE TRADEMARK WITHOUT PRIOR WRITTEN PERMISSION OF 3DFX
|
|
** INTERACTIVE, INC. A COPY OF THIS LICENSE MAY BE OBTAINED FROM THE
|
|
** DISTRIBUTOR OR BY CONTACTING 3DFX INTERACTIVE INC(info@3dfx.com).
|
|
** THIS PROGRAM IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
|
|
** EXPRESSED OR IMPLIED. SEE THE 3DFX GLIDE GENERAL PUBLIC LICENSE FOR A
|
|
** FULL TEXT OF THE NON-WARRANTY PROVISIONS.
|
|
**
|
|
** USE, DUPLICATION OR DISCLOSURE BY THE GOVERNMENT IS SUBJECT TO
|
|
** RESTRICTIONS AS SET FORTH IN SUBDIVISION (C)(1)(II) OF THE RIGHTS IN
|
|
** TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 252.227-7013,
|
|
** AND/OR IN SIMILAR OR SUCCESSOR CLAUSES IN THE FAR, DOD OR NASA FAR
|
|
** SUPPLEMENT. UNPUBLISHED RIGHTS RESERVED UNDER THE COPYRIGHT LAWS OF
|
|
** THE UNITED STATES.
|
|
**
|
|
** COPYRIGHT 3DFX INTERACTIVE, INC. 1999, ALL RIGHTS RESERVED
|
|
**
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#ifndef __linux__
|
|
#include <conio.h>
|
|
#else
|
|
#include <linutil.h>
|
|
#endif
|
|
#include <assert.h>
|
|
|
|
#include <glide.h>
|
|
#include "tlib.h"
|
|
|
|
|
|
int hwconfig;
|
|
static const char *version;
|
|
|
|
static const char name[] = "test23";
|
|
static const char purpose[] = "anti-aliased points test";
|
|
static const char usage[] = "-n <frames> -r <res>";
|
|
|
|
static int rRandom(int s, int e);
|
|
static unsigned int iRandom (unsigned int maxr);
|
|
|
|
typedef enum { NORMAL, ANTIALIASED } Mode;
|
|
|
|
int main( int argc, char **argv) {
|
|
char match;
|
|
char **remArgs;
|
|
int rv;
|
|
|
|
GrScreenResolution_t resolution = GR_RESOLUTION_640x480;
|
|
float scrWidth = 640.0f;
|
|
float scrHeight = 480.0f;
|
|
int frames = -1;
|
|
|
|
Mode mode;
|
|
int speed;
|
|
|
|
int i;
|
|
static TlVertex3D srcVerts[100];
|
|
float angle;
|
|
|
|
FxI32 ftsize = 0;
|
|
GrFog_t *fogtable = NULL;
|
|
FxU32 zrange[2];
|
|
GrContext_t gc = 0;
|
|
|
|
/* Initialize Glide */
|
|
grGlideInit();
|
|
assert( hwconfig = tlVoodooType() );
|
|
|
|
/* Process Command Line Arguments */
|
|
while ((rv = tlGetOpt(argc, argv, "nr", &match, &remArgs)) != 0) {
|
|
if ( rv == -1 ) {
|
|
printf( "Unrecognized command line argument\n" );
|
|
printf( "%s %s\n", name, usage );
|
|
printf( "Available resolutions:\n%s\n",
|
|
tlGetResolutionList() );
|
|
return -1;
|
|
}
|
|
switch( match ) {
|
|
case 'n':
|
|
frames = atoi( remArgs[0] );
|
|
break;
|
|
case 'r':
|
|
resolution = tlGetResolutionConstant( remArgs[0],
|
|
&scrWidth,
|
|
&scrHeight );
|
|
break;
|
|
}
|
|
}
|
|
|
|
tlSetScreen( scrWidth, scrHeight );
|
|
|
|
version = grGetString( GR_VERSION );
|
|
|
|
printf( "%s:\n%s\n", name, purpose );
|
|
printf( "%s\n", version );
|
|
printf( "Resolution: %s\n", tlGetResolutionString( resolution ) );
|
|
if ( frames == -1 ) {
|
|
printf( "Press A Key To Begin Test.\n" );
|
|
tlGetCH();
|
|
}
|
|
|
|
grSstSelect( 0 );
|
|
gc = grSstWinOpen(tlGethWnd(),
|
|
resolution,
|
|
GR_REFRESH_60Hz,
|
|
GR_COLORFORMAT_ABGR,
|
|
GR_ORIGIN_LOWER_LEFT,
|
|
2, 1 );
|
|
if (!gc) {
|
|
printf("Could not allocate glide fullscreen context.\n");
|
|
goto __errExit;
|
|
}
|
|
|
|
tlConSet( 0.0f, 0.0f, 1.0f, 0.5f,
|
|
60, 15, 0xffffff );
|
|
|
|
/* Set up Render State - flat shading - alpha blending */
|
|
grGet(GR_ZDEPTH_MIN_MAX, 8, (FxI32 *)zrange);
|
|
grGet(GR_FOG_TABLE_ENTRIES, 4, &ftsize);
|
|
fogtable = malloc(sizeof(GrFog_t)*ftsize);
|
|
assert(fogtable);
|
|
grVertexLayout(GR_PARAM_XY, 0, GR_PARAM_ENABLE);
|
|
grVertexLayout(GR_PARAM_Q, GR_VERTEX_OOW_OFFSET << 2, GR_PARAM_ENABLE);
|
|
|
|
grColorCombine( GR_COMBINE_FUNCTION_LOCAL,
|
|
GR_COMBINE_FACTOR_NONE,
|
|
GR_COMBINE_LOCAL_CONSTANT,
|
|
GR_COMBINE_OTHER_NONE,
|
|
FXFALSE );
|
|
grAlphaCombine( GR_COMBINE_FUNCTION_LOCAL,
|
|
GR_COMBINE_FACTOR_NONE,
|
|
GR_COMBINE_LOCAL_ITERATED,
|
|
GR_COMBINE_OTHER_NONE,
|
|
FXFALSE );
|
|
grFogMode( GR_FOG_WITH_TABLE_ON_W );
|
|
grFogColorValue( 0x0 );
|
|
guFogGenerateExp( fogtable, .8f );
|
|
grFogTable( fogtable );
|
|
grAlphaBlendFunction( GR_BLEND_SRC_ALPHA, GR_BLEND_ONE_MINUS_SRC_ALPHA,
|
|
GR_BLEND_ZERO, GR_BLEND_ZERO );
|
|
|
|
/* Initialize Source 3D data - One Hundred Random Points within
|
|
a 1x1 box */
|
|
for( i = 0; i < 100; i++ ) {
|
|
srcVerts[i].x = (((float)rRandom( 0, 100 )) / 100.0f ) - 0.5f;
|
|
srcVerts[i].y = (((float)rRandom( 0, 100 )) / 100.0f ) - 0.5f;
|
|
srcVerts[i].z = (((float)rRandom( 0, 100 )) / 100.0f ) - 0.5f;
|
|
srcVerts[i].w = 1.0f;
|
|
}
|
|
|
|
#define RED 0x000000ff
|
|
#define BLUE 0x00ff0000
|
|
|
|
angle = 0.0f;
|
|
mode = ANTIALIASED;
|
|
speed = 0;
|
|
|
|
tlConOutput( "a - toggles anti-aliasing\n" );
|
|
tlConOutput( "s - toggles speed of rotation\n" );
|
|
tlConOutput( "Press any key to quit\n\n" );
|
|
while( frames-- && tlOkToRender()) {
|
|
GrVertex vtxA;
|
|
static TlVertex3D xfVerts[100];
|
|
static TlVertex3D prjVerts[100];
|
|
|
|
if (hwconfig == TL_VOODOORUSH) {
|
|
tlGetDimsByConst(resolution,
|
|
&scrWidth,
|
|
&scrHeight );
|
|
|
|
grClipWindow(0, 0, (FxU32) scrWidth, (FxU32) scrHeight);
|
|
}
|
|
|
|
grBufferClear( 0x0, 0, zrange[1] );
|
|
|
|
/* 3D Transformations */
|
|
if ( speed ) {
|
|
angle += 1.0f;
|
|
} else {
|
|
angle += 0.05f;
|
|
}
|
|
if ( angle >= 360.0f ) angle -= 360.0f;
|
|
|
|
tlSetMatrix( tlIdentity() );
|
|
tlMultMatrix( tlYRotation( angle ) );
|
|
tlMultMatrix( tlTranslation( 0.0f, 0.0f, 1.5f ) );
|
|
|
|
tlTransformVertices( xfVerts, srcVerts, 100 );
|
|
tlProjectVertices( prjVerts, xfVerts, 100 );
|
|
|
|
grConstantColorValue( 0xffffffff );
|
|
|
|
switch( mode ) {
|
|
case NORMAL:
|
|
tlConOutput( "NORMAL POINTS \r" );
|
|
grAlphaCombine(GR_COMBINE_FUNCTION_SCALE_OTHER,
|
|
GR_COMBINE_FACTOR_ONE,
|
|
GR_COMBINE_LOCAL_NONE,
|
|
GR_COMBINE_OTHER_CONSTANT,
|
|
FXFALSE);
|
|
grAlphaBlendFunction(GR_BLEND_ONE , GR_BLEND_ZERO,
|
|
GR_BLEND_ONE, GR_BLEND_ZERO);
|
|
grVertexLayout(GR_PARAM_A, GR_VERTEX_A_OFFSET << 2, GR_PARAM_DISABLE);
|
|
grDisable(GR_AA_ORDERED);
|
|
break;
|
|
case ANTIALIASED:
|
|
tlConOutput( "ANTIALIASED POINTS \r" );
|
|
grAlphaCombine( GR_COMBINE_FUNCTION_LOCAL,
|
|
GR_COMBINE_FACTOR_NONE,
|
|
GR_COMBINE_LOCAL_ITERATED,
|
|
GR_COMBINE_OTHER_NONE,
|
|
FXFALSE );
|
|
grAlphaBlendFunction( GR_BLEND_SRC_ALPHA, GR_BLEND_ONE_MINUS_SRC_ALPHA,
|
|
GR_BLEND_ZERO, GR_BLEND_ZERO );
|
|
grVertexLayout(GR_PARAM_A, GR_VERTEX_A_OFFSET << 2, GR_PARAM_ENABLE);
|
|
grEnable(GR_AA_ORDERED);
|
|
break;
|
|
}
|
|
|
|
for( i = 0; i < 100; i++ ) {
|
|
vtxA.x = tlScaleX( prjVerts[i].x );
|
|
vtxA.y = tlScaleY( prjVerts[i].y );
|
|
vtxA.oow = 1.0f / prjVerts[i].w;
|
|
vtxA.a = 255.0f;
|
|
grDrawPoint( &vtxA );
|
|
}
|
|
|
|
tlConRender();
|
|
grBufferSwap( 1 );
|
|
grFinish();
|
|
|
|
while( tlKbHit() ) {
|
|
switch( tlGetCH() ) {
|
|
case 'a':
|
|
case 'A':
|
|
mode++;
|
|
mode%=2;
|
|
break;
|
|
case 's':
|
|
case 'S':
|
|
speed = !speed;
|
|
break;
|
|
default:
|
|
frames = 0;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
free(fogtable);
|
|
__errExit:
|
|
grGlideShutdown();
|
|
return 0;
|
|
}
|
|
|
|
static unsigned long randx = 1;
|
|
|
|
static unsigned int iRandom (unsigned int maxr)
|
|
{
|
|
unsigned int n,retval;
|
|
|
|
if (maxr > 0xFFFFFFF) {
|
|
do {
|
|
retval = iRandom(0xFFFFFFF);
|
|
retval |= iRandom(maxr>>28)<<28;
|
|
} while (retval > maxr);
|
|
return retval;
|
|
}
|
|
for (n=1; n<32; n++)
|
|
if (((unsigned)1 << n) > maxr) break;
|
|
do {
|
|
randx = randx*1103515245 + 12345;
|
|
retval = (randx & 0x7fffffff) >> (31-n);
|
|
} while (retval > maxr);
|
|
return retval;
|
|
}
|
|
|
|
static int rRandom(int s, int e)
|
|
{
|
|
return s + iRandom(e-s);
|
|
}
|
|
|
|
|
|
|
|
|