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(); }