gl_rmisc.c

来自「quake1 dos源代码最新版本」· C语言 代码 · 共 530 行 · 第 1/2 页

	{	// 1999-12-28 OpenGL fullbright fix by Neal White III
		Cvar_Set (gl_texsort, "0");
// 1999-12-28 OpenGL fullbright fix by Neal White III  start
		Cvar_Set (gl_glowmap, "1");
	}
// 1999-12-28 OpenGL fullbright fix by Neal White III  end

	gl_cull = Cvar_Get ("gl_cull", "1", CVAR_ORIGINAL);
	gl_smoothmodels = Cvar_Get ("gl_smoothmodels", "1", CVAR_ORIGINAL);
	gl_affinemodels = Cvar_Get ("gl_affinemodels", "0", CVAR_ORIGINAL);
	gl_polyblend = Cvar_Get ("gl_polyblend", "1", CVAR_ORIGINAL);
	gl_flashblend = Cvar_Get ("gl_flashblend", "1", CVAR_ORIGINAL);
	gl_playermip = Cvar_Get ("gl_playermip", "0", CVAR_ORIGINAL);
	gl_nocolors = Cvar_Get ("gl_nocolors", "0", CVAR_ORIGINAL);
	gl_keeptjunctions = Cvar_Get ("gl_keeptjunctions", "0", CVAR_ORIGINAL);
	gl_reporttjunctions = Cvar_Get ("gl_reporttjunctions", "0", CVAR_ORIGINAL);
	gl_doubleeyes = Cvar_Get ("gl_doubleeys", "1", CVAR_ORIGINAL);
*/
// 2001-09-18 New cvar system by Maddes (Init)  end

	R_InitParticles ();
	R_InitParticleTexture ();

#ifdef GLTEST
	Test_Init ();
#endif

	playertextures = texture_extension_number;
	texture_extension_number += 16;
}

/*
===============
R_TranslatePlayerSkin

Translates a skin texture by the per-player color lookup
===============
*/
void R_TranslatePlayerSkin (int playernum)
{
	int		top, bottom;
	byte	translate[256];
	unsigned	translate32[256];
	int		i, j, s;
	model_t	*model;
	aliashdr_t *paliashdr;
	byte	*original;
	unsigned	pixels[512*256], *out;
	unsigned	scaled_width, scaled_height;
	int			inwidth, inheight;
	byte		*inrow;
	unsigned	frac, fracstep;
	extern	byte		**player_8bit_texels_tbl;

	GL_DisableMultitexture();

	top = cl.scores[playernum].colors & 0xf0;
	bottom = (cl.scores[playernum].colors &15)<<4;

	for (i=0 ; i<256 ; i++)
		translate[i] = i;

	for (i=0 ; i<16 ; i++)
	{
		if (top < 128)	// the artists made some backwards ranges.  sigh.
			translate[TOP_RANGE+i] = top+i;
		else
			translate[TOP_RANGE+i] = top+15-i;

		if (bottom < 128)
			translate[BOTTOM_RANGE+i] = bottom+i;
		else
			translate[BOTTOM_RANGE+i] = bottom+15-i;
	}

	//
	// locate the original skin pixels
	//
	currententity = &cl_entities[1+playernum];
	model = currententity->model;
	if (!model)
		return;		// player doesn't have a model yet
	if (model->type != mod_alias)
		return; // only translate skins on alias models

	paliashdr = (aliashdr_t *)Mod_Extradata (model);
	s = paliashdr->skinwidth * paliashdr->skinheight;
	if (currententity->skinnum < 0 || currententity->skinnum >= paliashdr->numskins) {
		Con_DPrintf("(%d): Invalid player skin #%d\n", playernum, currententity->skinnum);	// 1999-12-27 Invalid skin number as developer message by Maddes
		original = (byte *)paliashdr + paliashdr->texels[0];
	} else
		original = (byte *)paliashdr + paliashdr->texels[currententity->skinnum];
	if (s & 3)
		Sys_Error ("R_TranslateSkin: s&3");

	inwidth = paliashdr->skinwidth;
	inheight = paliashdr->skinheight;

	// because this happens during gameplay, do it fast
	// instead of sending it through gl_upload 8
	GL_Bind(playertextures + playernum);

#if 0
	byte	translated[320*200];

	for (i=0 ; i<s ; i+=4)
	{
		translated[i] = translate[original[i]];
		translated[i+1] = translate[original[i+1]];
		translated[i+2] = translate[original[i+2]];
		translated[i+3] = translate[original[i+3]];
	}


	// don't mipmap these, because it takes too long
	GL_Upload8 (translated, paliashdr->skinwidth, paliashdr->skinheight, false, false, true);
#else
	scaled_width = gl_max_size->value < 512 ? gl_max_size->value : 512;
	scaled_height = gl_max_size->value < 256 ? gl_max_size->value : 256;

	// allow users to crunch sizes down even more if they want
	scaled_width >>= (int)gl_playermip->value;
	scaled_height >>= (int)gl_playermip->value;

	if (VID_Is8bit()) { // 8bit texture upload
		byte *out2;

		out2 = (byte *)pixels;
		memset(pixels, 0, sizeof(pixels));
		fracstep = inwidth*0x10000/scaled_width;
		for (i=0 ; i<scaled_height ; i++, out2 += scaled_width)
		{
			inrow = original + inwidth*(i*inheight/scaled_height);
			frac = fracstep >> 1;
			for (j=0 ; j<scaled_width ; j+=4)
			{
				out2[j] = translate[inrow[frac>>16]];
				frac += fracstep;
				out2[j+1] = translate[inrow[frac>>16]];
				frac += fracstep;
				out2[j+2] = translate[inrow[frac>>16]];
				frac += fracstep;
				out2[j+3] = translate[inrow[frac>>16]];
				frac += fracstep;
			}
		}

		GL_Upload8_EXT ((byte *)pixels, scaled_width, scaled_height, false, false);
		return;
	}

	for (i=0 ; i<256 ; i++)
		translate32[i] = d_8to24table[translate[i]];

	out = pixels;
	fracstep = inwidth*0x10000/scaled_width;
	for (i=0 ; i<scaled_height ; i++, out += scaled_width)
	{
		inrow = original + inwidth*(i*inheight/scaled_height);
		frac = fracstep >> 1;
		for (j=0 ; j<scaled_width ; j+=4)
		{
			out[j] = translate32[inrow[frac>>16]];
			frac += fracstep;
			out[j+1] = translate32[inrow[frac>>16]];
			frac += fracstep;
			out[j+2] = translate32[inrow[frac>>16]];
			frac += fracstep;
			out[j+3] = translate32[inrow[frac>>16]];
			frac += fracstep;
		}
	}
	glTexImage2D (GL_TEXTURE_2D, 0, gl_solid_format, scaled_width, scaled_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);

	glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
#endif

}


/*
===============
R_NewMap
===============
*/
void R_NewMap (void)
{
	int		i;

	for (i=0 ; i<256 ; i++)
		d_lightstylevalue[i] = 264;		// normal light value

	memset (&r_worldentity, 0, sizeof(r_worldentity));
	r_worldentity.model = cl.worldmodel;

// clear out efrags in case the level hasn't been reloaded
// FIXME: is this one short?
	for (i=0 ; i<cl.worldmodel->numleafs ; i++)
		cl.worldmodel->leafs[i].efrags = NULL;

	r_viewleaf = NULL;
	R_ClearParticles ();

	GL_BuildLightmaps ();

	// identify sky texture
	skytexturenum = -1;
	mirrortexturenum = -1;
	for (i=0 ; i<cl.worldmodel->numtextures ; i++)
	{
		if (!cl.worldmodel->textures[i])
			continue;
		if (!strncmp(cl.worldmodel->textures[i]->name,"sky",3) )
			skytexturenum = i;
		if (!strncmp(cl.worldmodel->textures[i]->name,"window02_1",10) )
			mirrortexturenum = i;
 		cl.worldmodel->textures[i]->texturechain = NULL;
	}
#ifdef QUAKE2
	R_LoadSkys ();
#endif
}


/*
====================
R_TimeRefresh_f

For program optimization
====================
*/
void R_TimeRefresh_f (void)
{
	int			i;
	float		start, stop, time;
	int			startangle;
	vrect_t		vr;

	glDrawBuffer  (GL_FRONT);
	glFinish ();

	start = Sys_FloatTime ();
	for (i=0 ; i<128 ; i++)
	{
		r_refdef.viewangles[1] = i/128.0*360.0;
		R_RenderView ();
	}

	glFinish ();
	stop = Sys_FloatTime ();
	time = stop-start;
	Con_Printf ("%f seconds (%f fps)\n", time, 128/time);

	glDrawBuffer  (GL_BACK);
	GL_EndRendering ();
}

void D_FlushCaches (void)
{
}