307 lines
9.5 KiB
C
307 lines
9.5 KiB
C
/*
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** Insert new header here
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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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#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 <string.h>
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#include <glide.h>
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#include "tlib.h"
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typedef struct
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{
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float x, y; /* X and Y in screen space */
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float ooz; /* 65535/Z (used for Z-buffering) */
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float oow; /* 1/W (used for W-buffering, texturing) */
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float r, g, b, a; /* R, G, B, A [0..255.0] */
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float z; /* Z is ignored */
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GrTmuVertex tmuvtx[GLIDE_NUM_TMU];
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float fog; /* fog coordinate */
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} FogVertex;
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int hwconfig;
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static const char *version;
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static const char *extension;
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static const char name[] = "test34";
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static const char purpose[] = "fogging with table/fogcoord";
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static const char usage[] = "-n <frames> -r <res> -d <filename>";
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void 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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FxBool scrgrab = FXFALSE;
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char filename[256];
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int ftsize = 0;
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GrFog_t *fogtable = NULL;
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TlTexture baseTexture;
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unsigned long baseTextureAddr;
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FogVertex vtxA, vtxB, vtxC, vtxD;
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TlVertex3D srcVerts[4];
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TlVertex3D xfVerts[4];
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TlVertex3D prjVerts[4];
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FxBool fogCoord = FXFALSE, fogext = FXFALSE;
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char *extstr;
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float dist = 0.f;
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float delta = 0.5f;
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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, "nrd", &match, &remArgs ) ) {
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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;
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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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case 'd':
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scrgrab = FXTRUE;
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frames = 1;
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strcpy(filename, remArgs[0]);
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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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assert( 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_UPPER_LEFT,
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2, 1 ) );
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tlConSet( 0.0f, 0.0f, 1.0f, 1.0f,
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60, 30, 0xffffff );
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/* Set up Render State - gouraud shading + fog */
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extension = grGetString(GR_EXTENSION);
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extstr = strstr(extension, "FOGCOORD");
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if (!extstr) {
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printf( "FOGCOORD is not supported in %s\n", grGetString(GR_HARDWARE) );
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grGlideShutdown();
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return;
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}
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if (!strncmp(extstr, "FOGCOORD", 8)) {
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fogext = FXTRUE;
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}
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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, GR_VERTEX_X_OFFSET << 2, 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( 0xff00ff00 );
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guFogGenerateExp( fogtable, .01f );
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grFogTable( fogtable );
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assert( tlLoadTexture( "miro.3df",
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&baseTexture.info,
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&baseTexture.tableType,
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&baseTexture.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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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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grTexClampMode( GR_TMU0, GR_TEXTURECLAMP_WRAP, GR_TEXTURECLAMP_WRAP);
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tlConOutput( "Press a key to quit\n" );
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tlConOutput( "Press F to toggle fog mode\n" );
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while( frames-- && tlOkToRender()) {
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if (fogCoord && fogext) {
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grFogMode( GR_FOG_WITH_TABLE_ON_FOGCOORD_EXT );
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grVertexLayout(GR_PARAM_FOG_EXT, sizeof(GrVertex), GR_PARAM_ENABLE);
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tlConOutput( "GR_FOG_WITH_TABLE_ON_FOGCOORD\r" );
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}
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else {
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grFogMode( GR_FOG_WITH_TABLE_ON_W );
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grVertexLayout(GR_PARAM_FOG_EXT, sizeof(GrVertex), GR_PARAM_DISABLE);
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if (fogCoord && !fogext)
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tlConOutput( "FOG_COORD IS NOT SUPPORTED \r");
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else
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tlConOutput( "GR_FOG_WITH_TABLE_ON_W \r" );
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}
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{
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srcVerts[0].x = -10.0f, srcVerts[0].y = 0.0f, srcVerts[0].z = 200.0f, srcVerts[0].w = 1.0f;
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srcVerts[1].x = 10.0f, srcVerts[1].y = 0.0f, srcVerts[1].z = 200.0f, srcVerts[1].w = 1.0f;
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srcVerts[2].x = -10.0f, srcVerts[2].y = 0.0f, srcVerts[2].z = -40.0f, srcVerts[2].w = 1.0f;
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srcVerts[3].x = 10.0f, srcVerts[3].y = 0.0f, srcVerts[3].z = -40.0f, 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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tlSetMatrix( tlIdentity() );
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tlMultMatrix( tlXRotation( 15.f ) );
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if (dist <= 0.f)
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delta = 0.5f;
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if (dist >= 30.f)
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delta = -0.5f;
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dist += delta;
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tlMultMatrix( tlTranslation( 0.0f, 0.0f, 50.f + dist ) );
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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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vtxA.fog = 1.f / 30.f;
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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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vtxB.fog = 1.f / 15.f;
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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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vtxC.fog = 1.f / 300.f;
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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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vtxD.fog = 1.f / 15.f;
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}
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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( 0x00, 0, 0 );
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grDrawTriangle( &vtxA, &vtxB, &vtxD );
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grDrawTriangle( &vtxA, &vtxD, &vtxC );
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if (fogCoord && fogext) {
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grVertexLayout(GR_PARAM_FOG_EXT, sizeof(GrVertex), GR_PARAM_DISABLE);
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}
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tlConRender();
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grBufferSwap( 1 );
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/* grab the frame buffer */
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if (scrgrab) {
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if (!tlScreenDump(filename, (FxU16)scrWidth, (FxU16)scrHeight))
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printf( "Cannot open %s\n", filename);
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scrgrab = FXFALSE;
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}
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while( tlKbHit() ) {
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switch( tlGetCH() ) {
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case 'f':
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case 'F':
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fogCoord = !fogCoord;
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break;
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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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grGlideShutdown();
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free(fogtable);
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return;
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}
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