void _3dfx_BlitScale( grs_bitmap *source_bmp, grs_bitmap *dest_bmp,
int x0, int y0, int x1, int y1,
fix u0, fix v0, fix u1, fix v1, int orient )
{
if ( _3dfx_available )
{
if ( source_bmp->bm_flags & BM_FLAG_RLE )
{
fix u, v, du, dv;
int x, y;
ubyte * sbits;
unsigned long * dbits;
unsigned long * fb;
du = (u1-u0) / (x1-x0);
dv = (v1-v0) / (y1-y0);
v = v0;
grLfbBegin();
grLfbBypassMode( GR_LFBBYPASS_ENABLE );
fb = ( unsigned long * ) grLfbGetWritePtr( GR_BUFFER_BACKBUFFER );
grLfbWriteMode( GR_LFBWRITEMODE_8888 );
guColorCombineFunction( GR_COLORCOMBINE_DECAL_TEXTURE );
for ( y = y0; y <= y1; y++, v += dv )
{
extern ubyte scale_rle_data[];
decode_row( source_bmp, f2i( v ) );
sbits = scale_rle_data + f2i( u0 );
dbits = fb + _3DFX_FB_WIDTH * y + x0;
u = u0;
for ( x = x0; x <= x1; x++ )
{
int pindex = sbits[ u >> 16 ];
if ( pindex != 255 )
*dbits = _3dfx_PaletteToARGB( pindex );
dbits++;
u += du;
}
}
grLfbBypassMode( GR_LFBBYPASS_DISABLE );
grLfbEnd();
}
else
{
void
main( int argc, char **argv ) {
float
minColor = 15.f,
maxColor = 240.f;
GrVertex
localVerts[NVERTS],
texVerts[NVERTS];
int
nFrames = 0;
float
alpha = 192.0f,
y_angle = 0.0f;
FxBool
lines = FXFALSE,
blend = FXFALSE,
texturing = FXFALSE,
antialias = FXTRUE,
bilinear = FXTRUE,
render = FXTRUE,
backbuffer = FXTRUE,
background = FXTRUE;
GrCullMode_t
cullMode = GR_CULL_DISABLE;
float
wWidth, wHeight;
GrScreenResolution_t
screenRes;
GrMipMapId_t
triDecal,
bgDecal;
Gu3dfInfo
bgInfo, triInfo;
FxU16
*scrnImage;
GrColorCombineFnc_t
ccFnc = GR_COLORCOMBINE_ITRGB;
int
numFrames = -1,
frameCount = 0;
char
*bgFileName = NULL,
*triFileName = NULL;
wWidth = 640.0f;
wHeight = 480.0f;
screenRes = GR_RESOLUTION_640x480;
--argc; ++argv;
while (argc) {
if (strstr(*argv, "320x200")) {
wWidth = 320.0f; wHeight = 200.0f;
screenRes = GR_RESOLUTION_320x200;
--argc; ++argv;
} else if (strstr(*argv, "320x240")) {
wWidth = 320.0f; wHeight = 240.0f;
screenRes = GR_RESOLUTION_320x240;
--argc; ++argv;
} else if (strstr(*argv, "400x256")) {
wWidth = 400.0f; wHeight = 256.0f;
screenRes = GR_RESOLUTION_400x256;
--argc; ++argv;
} else if (strstr(*argv, "512x384")) {
wWidth = 512.0f; wHeight = 384.0f;
screenRes = GR_RESOLUTION_512x384;
--argc; ++argv;
} else if (strstr(*argv, "640x480")) {
wWidth = 640.0f; wHeight = 480.0f;
screenRes = GR_RESOLUTION_640x480;
--argc; ++argv;
} else if (strstr(*argv, "800x600")) {
wWidth = 800.0f; wHeight = 600.0f;
screenRes = GR_RESOLUTION_800x600;
--argc; ++argv;
} else if (strstr(*argv, "856x480")) {
wWidth = 856.0f; wHeight = 480.0f;
screenRes = GR_RESOLUTION_856x480;
--argc; ++argv;
} else if (strstr(*argv, "960x720")) {
wWidth = 960.0f; wHeight = 720.0f;
screenRes = GR_RESOLUTION_960x720;
--argc; ++argv;
} else if (strstr(*argv, "640x200")) {
wWidth = 640.f; wHeight = 200.f;
screenRes = GR_RESOLUTION_640x200;
--argc; ++argv;
} else if (strstr(*argv, "640x350")) {
wWidth = 640.f; wHeight = 350.f;
screenRes = GR_RESOLUTION_640x350;
--argc; ++argv;
} else if (strstr(*argv, "640x400")) {
wWidth = 640.f; wHeight = 400.f;
screenRes = GR_RESOLUTION_640x400;
--argc; ++argv;
} else if (strstr(*argv, "bgFile")) {
bgFileName = argv[1];
argc-= 2; argv += 2;
} else if (strstr(*argv, "triFile")) {
triFileName = argv[1];
argc-= 2; argv += 2;
} else if (strstr(*argv, "alpha")) {
alpha = (float)atof(argv[1]);
argc -= 2; argv += 2;
} else if (strstr(*argv, "-n")) {
numFrames = atoi(argv[1]);
argc -= 2; argv += 2;
} else {
fprintf(
stderr,
"Useage: test27 [-bgFile bgfile.3ds] [-triFile triFile.3ds] [ScreenRes (i.e. 640x480 .. 960x720] [-alpha alphavalue] [-n numFrames]\n");
exit(-1);
}
}
scrnImage = malloc((int)wWidth * (int)wHeight * sizeof(FxU16));
puts( "\nTEST27:" );
puts( "Antialiased Polygon Test\n" );
puts("press H for help\n");
if(numFrames == -1)
{
puts("Press a key to continue");
getch();
}
grGlideInit();
if ( !grSstQueryHardware( &hwconfig ) )
{
fprintf( stderr, "main: grSstQueryHardware failed!\n" );
grGlideShutdown();
exit( -1 );
}
/* Select SST 0 */
grSstSelect( 0 );
/* Open up the hardware */
if ( !grSstOpen( screenRes,
GR_REFRESH_60Hz,
GR_COLORFORMAT_ABGR,
GR_ORIGIN_LOWER_LEFT,
GR_SMOOTHING_ENABLE,
2 ) )
{
fprintf( stderr, "main: grSstOpen failed!\n" );
grGlideShutdown();
exit( -1 );
}
localVerts[0].x = -0.666f;
localVerts[0].y = -1.0f;
localVerts[0].z = 0.0f;
localVerts[0].tmuvtx[0].sow = 85.f;
localVerts[0].tmuvtx[0].tow = 255.f;
localVerts[0].oow = 1.f;
localVerts[0].r = maxColor;
localVerts[0].g = minColor;
localVerts[0].b = minColor;
localVerts[0].a = 255.f;
localVerts[1].x = -1.0f;
localVerts[1].y = -0.666f;
localVerts[1].z = 0.0f;
localVerts[1].tmuvtx[0].sow = 0.f;
localVerts[1].tmuvtx[0].tow = 170.f;
localVerts[1].oow = 1.f;
localVerts[1].r = minColor;
localVerts[1].g = maxColor;
localVerts[1].b = minColor;
localVerts[1].a = 255.f;
localVerts[2].x = -1.f;
localVerts[2].y = 0.333f;
localVerts[2].z = 0.0f;
localVerts[2].tmuvtx[0].sow = 0.f;
localVerts[2].tmuvtx[0].tow = 85.f;
localVerts[2].oow = 1.f;
localVerts[2].r = minColor;
localVerts[2].g = minColor;
localVerts[2].b = maxColor;
localVerts[2].a = 255.f;
localVerts[3].x = -0.666f;
localVerts[3].y = 1.f;
localVerts[3].z = 0.0f;
localVerts[3].tmuvtx[0].sow = 85.f;
localVerts[3].tmuvtx[0].tow = 0.f;
localVerts[3].oow = 1.f;
localVerts[3].r = maxColor;
localVerts[3].g = minColor;
localVerts[3].b = maxColor;
localVerts[3].a = 255.f;
localVerts[4].x = 0.333f;
localVerts[4].y = 1.f;
localVerts[4].z = 0.0f;
localVerts[4].tmuvtx[0].sow = 170.f;
localVerts[4].tmuvtx[0].tow = 0.f;
localVerts[4].oow = 1.f;
localVerts[4].r = minColor;
localVerts[4].g = maxColor;
localVerts[4].b = maxColor;
localVerts[4].a = 255.f;
localVerts[5].x = 1.f;
localVerts[5].y = 0.333f;
localVerts[5].z = 0.0f;
localVerts[5].tmuvtx[0].sow = 255.f;
localVerts[5].tmuvtx[0].tow = 85.f;
localVerts[5].oow = 1.f;
localVerts[5].r = maxColor;
localVerts[5].g = maxColor;
localVerts[5].b = minColor;
localVerts[5].a = 255.f;
localVerts[6].x = 1.f;
localVerts[6].y = -0.666f;
localVerts[6].z = 0.0f;
localVerts[6].tmuvtx[0].sow = 255.f;
localVerts[6].tmuvtx[0].tow = 170.f;
localVerts[6].oow = 1.f;
localVerts[6].r = maxColor;
localVerts[6].g = maxColor;
localVerts[6].b = maxColor;
localVerts[6].a = 255.f;
localVerts[7].x = 0.333f;
localVerts[7].y = -1.f;
localVerts[7].z = 0.0f;
localVerts[7].tmuvtx[0].sow = 170.f;
localVerts[7].tmuvtx[0].tow = 255.f;
localVerts[7].oow = 1.f;
localVerts[7].r = minColor;
localVerts[7].g = minColor;
localVerts[7].b = minColor;
localVerts[7].a = 255.f;
texVerts[0].x = 0.f;
texVerts[0].y = 0.f;
texVerts[0].a = 255.f;
texVerts[0].oow = 1.f;
texVerts[0].tmuvtx[0].sow = 0.f * texVerts[0].oow;
texVerts[0].tmuvtx[0].tow = 255.f * texVerts[0].oow;
texVerts[1].x = wWidth;
texVerts[1].y = 0.f;
texVerts[1].a = 255.f;
texVerts[1].oow = 1.f;
texVerts[1].tmuvtx[0].sow = 255.f * texVerts[1].oow;
texVerts[1].tmuvtx[0].tow = 255.f * texVerts[1].oow;
texVerts[2].x = wWidth;
texVerts[2].y = wHeight;
texVerts[2].a = 255.f;
texVerts[2].oow = 1.f;
texVerts[2].tmuvtx[0].sow = 255.f * texVerts[2].oow;
texVerts[2].tmuvtx[0].tow = 0.f * texVerts[2].oow;
texVerts[3].x = 0.f;
texVerts[3].y = wHeight;
texVerts[3].a = 255.f;
texVerts[3].oow = 1.f;
texVerts[3].tmuvtx[0].sow = 0.f * texVerts[3].oow;
texVerts[3].tmuvtx[0].tow = 0.f * texVerts[3].oow;
if (bgFileName == NULL)
bgFileName = "miro.3df";
if (triFileName == NULL)
triFileName = "matt1.3df";
if ( gu3dfGetInfo( bgFileName, &bgInfo ) ) {
bgInfo.data = malloc( bgInfo.mem_required );
if ( bgInfo.data == 0 ) {
fprintf( stderr, "out of memory for texture file %s\n", bgFileName );
grGlideShutdown();
exit( -1 );
}
if ( !gu3dfLoad( bgFileName, &bgInfo ) ) {
fprintf( stderr, "could not load texture file %s\n", bgFileName );
grGlideShutdown();
exit( -1 );
}
bgDecal = guTexAllocateMemory( 0, GR_MIPMAPLEVELMASK_BOTH,
bgInfo.header.width, bgInfo.header.height,
bgInfo.header.format,
GR_MIPMAP_NEAREST,
bgInfo.header.small_lod, bgInfo.header.large_lod,
bgInfo.header.aspect_ratio,
GR_TEXTURECLAMP_WRAP, GR_TEXTURECLAMP_WRAP,
GR_TEXTUREFILTER_BILINEAR, GR_TEXTUREFILTER_BILINEAR,
0.0F,
FXFALSE );
if ( bgDecal == GR_NULL_MIPMAP_HANDLE ) {
fprintf( stderr, "could not allocate memory for texture file %s\n", bgFileName );
grGlideShutdown();
exit( -1 );
}
guTexDownloadMipMap( bgDecal, bgInfo.data, &bgInfo.table.nccTable );
free( bgInfo.data );
} else {
fprintf( stderr, "could not get info on %s\n", bgFileName );
grGlideShutdown();
exit( -1 );
}
if ( gu3dfGetInfo( triFileName, &triInfo ) ) {
triInfo.data = malloc( triInfo.mem_required );
if ( triInfo.data == 0 ) {
fprintf( stderr, "out of memory for texture file %s\n", triFileName );
grGlideShutdown();
exit( -1 );
}
if ( !gu3dfLoad( triFileName, &triInfo ) ) {
fprintf( stderr, "could not load texture file %s\n", triFileName );
grGlideShutdown();
exit( -1 );
}
triDecal = guTexAllocateMemory( 0, GR_MIPMAPLEVELMASK_BOTH,
triInfo.header.width,
triInfo.header.height,
triInfo.header.format,
GR_MIPMAP_NEAREST,
triInfo.header.small_lod,
triInfo.header.large_lod,
triInfo.header.aspect_ratio,
GR_TEXTURECLAMP_WRAP,
GR_TEXTURECLAMP_WRAP,
GR_TEXTUREFILTER_BILINEAR,
GR_TEXTUREFILTER_BILINEAR,
0.0F,
FXFALSE );
if ( triDecal == GR_NULL_MIPMAP_HANDLE ) {
fprintf( stderr, "could not allocate memory for %s\n", triFileName );
grGlideShutdown();
exit( -1 );
}
guTexDownloadMipMap( triDecal, triInfo.data, &triInfo.table.nccTable );
free( triInfo.data );
} else {
fprintf( stderr, "could not get info on %s\n", triFileName );
grGlideShutdown();
exit( -1 );
}
grTexCombineFunction(GR_TMU0, GR_TEXTURECOMBINE_DECAL);
grRenderBuffer(backbuffer == FXTRUE ? GR_BUFFER_BACKBUFFER : GR_BUFFER_FRONTBUFFER);
guAlphaSource( GR_ALPHASOURCE_ITERATED_ALPHA );
grAlphaBlendFunction( GR_BLEND_SRC_ALPHA, GR_BLEND_ONE_MINUS_SRC_ALPHA, GR_BLEND_ONE, GR_BLEND_ZERO );
grAlphaTestFunction( GR_CMP_ALWAYS );
while ( 1 ) {
Matrix rotm;
GrVertex xformedVerts[NVERTS];
int i;
int ilist[NVERTS];
++nFrames;
for (i = 0; i < NVERTS; i++)
ilist[i] = i;
MatMakeYRot( rotm, DEG2RAD( y_angle ) );
for( i = 0; i < NVERTS; i++ ) {
PointMatMult( &xformedVerts[i], &localVerts[i], rotm );
xformedVerts[i].x = xformedVerts[i].x / ( xformedVerts[i].z + 2.0f );
xformedVerts[i].y = xformedVerts[i].y / ( xformedVerts[i].z + 2.0f );
xformedVerts[i].x *= wHeight / 2.0f;
xformedVerts[i].y *= wHeight / 2.0f;
xformedVerts[i].x += wHeight / 2.0f;
xformedVerts[i].y += wHeight / 2.0f;
xformedVerts[i].oow = 1.f / ((xformedVerts[i].z + 2) * wHeight);
xformedVerts[i].tmuvtx[0].sow *= xformedVerts[i].oow;
xformedVerts[i].tmuvtx[0].tow *= xformedVerts[i].oow;
SNAP_COORD( xformedVerts[i].x );
SNAP_COORD( xformedVerts[i].y );
}
guColorCombineFunction( ccFnc );
grLfbBypassMode(GR_LFBBYPASS_ENABLE);
if (render == FXTRUE) {
grBufferClear( 0xffffffff, 0, GR_WDEPTHVALUE_FARTHEST );
if (background == FXTRUE) {
GrState
oldState;
grGlideGetState(&oldState);
grAlphaBlendFunction(
GR_BLEND_ONE, GR_BLEND_ZERO,
GR_BLEND_ONE, GR_BLEND_ZERO);
grColorCombine(
GR_COMBINE_FUNCTION_SCALE_OTHER,
GR_COMBINE_FACTOR_ONE,
GR_COMBINE_LOCAL_NONE,
GR_COMBINE_OTHER_TEXTURE, FXFALSE
);
guTexSource(bgDecal);
grDrawTriangle(&texVerts[0], &texVerts[1], &texVerts[2]);
grDrawTriangle(&texVerts[2], &texVerts[3], &texVerts[0]);
grGlideSetState(&oldState);
}
if (texturing == FXTRUE)
guTexSource(bgDecal);
if (texturing)
guTexSource(triDecal);
if (lines == FXTRUE) {
for (i = 0; i < NVERTS - 1; i++)
if (antialias == FXTRUE)
grAADrawLine(&xformedVerts[i], &xformedVerts[i+1]);
else
grDrawLine(&xformedVerts[i], &xformedVerts[i+1]);
grAADrawLine(&xformedVerts[NVERTS-1], &xformedVerts[0]);
} else {
if (antialias == FXTRUE) {
grAADrawPolygon(NVERTS, ilist, xformedVerts);
} else {
grDrawPolygon(NVERTS, ilist, xformedVerts);
}
}
if (backbuffer) {
grBufferSwap( 1 );
}
}
if (kbhit()) {
char c = getch();
switch (c) {
case 'a':
case 'A':
if (antialias == FXFALSE) {
printf("Turning ON Antialiasing\n");
antialias = FXTRUE;
} else {
printf("Turning OFF Antialiasing\n");
antialias = FXFALSE;
}
break;
case 'B':
case 'b':
if (bilinear == FXFALSE) {
bilinear = FXTRUE;
printf("Turning ON BiLinear blending\n");
guTexChangeAttributes(
triDecal, bgInfo.header.width,
bgInfo.header.height,
bgInfo.header.format, GR_MIPMAP_NEAREST,
bgInfo.header.small_lod,
bgInfo.header.large_lod,
bgInfo.header.aspect_ratio,
GR_TEXTURECLAMP_WRAP, GR_TEXTURECLAMP_WRAP,
GR_TEXTUREFILTER_BILINEAR,
GR_TEXTUREFILTER_BILINEAR);
} else {
bilinear = FXFALSE;
printf("Turning OFF BiLinear blending\n");
guTexChangeAttributes(
triDecal, bgInfo.header.width,
bgInfo.header.height,
bgInfo.header.format, GR_MIPMAP_NEAREST,
bgInfo.header.small_lod,
bgInfo.header.large_lod,
bgInfo.header.aspect_ratio,
GR_TEXTURECLAMP_WRAP, GR_TEXTURECLAMP_WRAP,
GR_TEXTUREFILTER_POINT_SAMPLED,
GR_TEXTUREFILTER_POINT_SAMPLED);
}
break;
case 'c':
case 'C':
if (blend == FXTRUE) {
blend = FXFALSE;
for (i = 0; i < NVERTS; i++)
localVerts[i].a = 255.f;
} else {
blend = FXTRUE;
for (i = 0; i < NVERTS; i++)
localVerts[i].a = alpha;
}
break;
case 'd':
case 'D':
printf("vtxa = (%.2f, %.2f), vtxb = (%.2f, %.2f), vtxc = (%.2f, %.2f)\n",
xformedVerts[0].x, xformedVerts[0].y,
xformedVerts[1].x, xformedVerts[1].y,
xformedVerts[2].x, xformedVerts[2].y
);
break;
case 'f':
case 'F':
if (backbuffer == FXTRUE) {
backbuffer = FXFALSE;
grRenderBuffer(GR_BUFFER_FRONTBUFFER);
} else {
backbuffer = FXTRUE;
grRenderBuffer(GR_BUFFER_BACKBUFFER);
}
break;
case 'g':
case 'G':
grLfbBegin();
grLfbWriteMode(GR_LFBWRITEMODE_565);
grLfbOrigin(GR_ORIGIN_UPPER_LEFT);
grLfbGetReadPtr(GR_BUFFER_FRONTBUFFER);
printf("Press a key to get front buffer\n");
while (!kbhit());
c = getch();
guFbReadRegion(0,0,(int)wWidth,(int)wHeight,scrnImage,(int)wWidth * sizeof(FxU16));
printf("Press a key to put image in back buffer and swap\n");
while (!kbhit());
getch();
grLfbGetWritePtr(GR_BUFFER_BACKBUFFER);
guFbWriteRegion(0,0,(int)wWidth,(int)wHeight,scrnImage,(int)wWidth * sizeof(FxU16));
grBufferSwap(1);
printf("Press a key to continue...\n");
while (!kbhit());
getch();
grLfbEnd();
break;
case 'h':
case 'H':
case '?':
grSstPassthruMode(GR_PASSTHRU_SHOW_VGA);
printf("Keymap:\n");
printf(" A or a: toggle Antialiasing\n");
printf(" B or b: toggle Bilinear\n");
printf(" F or f: toggle Front buffer \n");
printf(" H, h, or ?: Help\n");
printf(" I or i: toggle background Image\n");
printf(" P or p: Pause rendering\n");
printf(" Q or q: Quit\n");
printf(" S or s: toggle hidden Surface removal (backface culling)\n");
printf(" T or t: toggle Texturing\n");
printf("Press a key to continue...\n");
getch();
grSstPassthruMode(GR_PASSTHRU_SHOW_SST1);
break;
case 'i':
case 'I':
if (background == FXTRUE) {
background = FXFALSE;
printf("Turning off background\n");
} else {
printf("Turning on background\n");
background = FXTRUE;
}
break;
case 'l':
case 'L':
if (lines == FXTRUE) {
lines = FXFALSE;
printf("Turning OFF lines\n");
} else {
lines = FXTRUE;
printf("Turning ON lines\n");
}
break;
case 'm':
case 'M':
ccFnc = GR_COLORCOMBINE_TEXTURE_TIMES_ITRGB;
break;
case 'p':
case 'P':
if (render == FXTRUE)
render = FXFALSE;
else
render = FXTRUE;
break;
case 'q':
case 'Q':
grGlideShutdown();
exit(0);
break;
case 'S':
case 's':
if (cullMode == GR_CULL_DISABLE) {
cullMode = GR_CULL_NEGATIVE;
printf("Turning ON backface culling (hidden Surface removal)\n");
} else {
cullMode = GR_CULL_DISABLE;
printf("Turning OFF backface culling (hidden Surface removal)\n");
}
grCullMode(cullMode);
break;
case 'T':
case 't':
if (texturing == FXFALSE) {
printf("Turning ON texturing\n");
ccFnc = GR_COLORCOMBINE_DECAL_TEXTURE;
texturing = FXTRUE;
} else {
printf("Turning OFF texturing\n");
ccFnc = GR_COLORCOMBINE_ITRGB;
texturing = FXFALSE;
}
break;
}
}
if (render) {
y_angle += 2.f;
if( y_angle > 360.0f )
y_angle -= 360.0f;
}
frameCount++;
if(frameCount < 0)
frameCount = 0;
if(frameCount == numFrames)
break;
}
grGlideShutdown();
}
