Support for equirectangular sky images. Because skybox orientations are generally too hard to get right. Urgh.

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5955 fc73d0e0-1445-4013-8a0c-d673dee63da5

engine/client/image.c

@@ -3505,12 +3505,13 @@ static qbyte *ReadPBMFile(qbyte *buf, size_t len, const char *fname, int *width,
 static void *ReadRadianceFile(qbyte *buf, size_t len, const char *fname, int *width, int *height, uploadfmt_t *format)
 {	//this isn't expected to be fast.
 	qbyte *end = buf+len;
-	size_t l, x, y, w, h;
+	size_t l, x, y, w, h, e;
 	float *r, *o, m;
 	qbyte rgbe[4];
 
 	char fmt[128];
 	char line[256];
+	byte_vec4_t *row = NULL;
 	w = h = 0;
 	*fmt = 0;
 	while (buf < end)
@@ -3535,13 +3536,13 @@ static void *ReadRadianceFile(qbyte *buf, size_t len, const char *fname, int *wi
 		Con_Printf("%s uses unsupported orientation\n", fname);
 		return NULL;
 	}
-	w = strtol(buf+3, (char**)&buf, 0);
+	h = strtol(buf+3, (char**)&buf, 0);
 	if (strncmp(buf, " +X ", 4))
 	{
 		Con_Printf("%s uses unsupported orientation\n", fname);
 		return NULL;
 	}
-	h = strtol(buf+4, (char**)&buf, 0);
+	w = strtol(buf+4, (char**)&buf, 0);
 	if (*buf == '\r')
 		buf++;
 	if (*buf++ != '\n')
@@ -3556,38 +3557,83 @@ static void *ReadRadianceFile(qbyte *buf, size_t len, const char *fname, int *wi
 	r = o = BZ_Malloc(sizeof(float)*4*w*h);
 	if (!r)
 		return NULL;
-	for (y=0; y < h; y++)
+	for (y=0; y < h && buf+4<end; y++)
 	{
-		for (x=0; x < w; x++)
-		{
-			rgbe[0] = *buf++;
-			rgbe[1] = *buf++;
-			rgbe[2] = *buf++;
-			rgbe[3] = *buf++;
-			if (rgbe[0] == 2 && rgbe[1] == 2 && rgbe[2] < 127)
-			{ //new rle logic
-				Con_Printf("%s uses unsupported (new) RLE compression\n", fname);
-				goto fail;
-			}
-			if (rgbe[0] == 1 && rgbe[1] == 1 && rgbe[2] == 1)
-			{ //old rle logic
-				Con_Printf("%s uses unsupported (old) RLE compression\n", fname);
-				goto fail;
+		if (buf[0] == 2 && buf[1] == 2 && buf[2] < 127)
+		{ //'new' rle logic
+			int c, v;
+			buf+=4;
+			if (!row)
+				row = BZ_Malloc(w*sizeof(*row));
+			//encoded separately
+			for (c = 0; c < 4; c++)
+			{
+				for (x=0; x < w; )
+				{
+					if (buf+1 >= end)
+						goto fail;
+					if (*buf > 128)
+					{
+						e = x + (*buf++ - 128);
+						v = *buf++;
+						if (e == x || e > w)
+							goto fail;
+						while (x < e)
+							row[x++][c] = v;
+					}
+					else
+					{
+						e = x + *buf++;
+						if (e == x || e > w || buf+(e-x) >= end)
+							goto fail;
+						while (x < e)
+							row[x++][c] = *buf++;
+					}
+				}
 			}
 
-			m = ldexp(1,rgbe[3]-136);
-			*o++ = m * rgbe[0];
-			*o++ = m * rgbe[1];
-			*o++ = m * rgbe[2];
-			*o++ = 1;
+			//decompressed the entire line, can make sense of it now.
+			for (x=0; x < w; x++)
+			{
+				m = ldexp(1,row[x][3]-136);
+				*o++ = m * row[x][0];
+				*o++ = m * row[x][1];
+				*o++ = m * row[x][2];
+				*o++ = 1;
+			}
+		}
+		else if (rgbe[0] == 1 && rgbe[1] == 1 && rgbe[2] == 1)
+		{ //old rle logic
+			Con_Printf("%s uses unsupported (old) RLE compression\n", fname);
+			goto fail;
+		}
+		else
+		{
+			for (x=0; x < w && buf+4<end ; x++)
+			{
+				rgbe[0] = *buf++;
+				rgbe[1] = *buf++;
+				rgbe[2] = *buf++;
+				rgbe[3] = *buf++;
+
+				m = ldexp(1,rgbe[3]-136);
+				*o++ = m * rgbe[0];
+				*o++ = m * rgbe[1];
+				*o++ = m * rgbe[2];
+				*o++ = 1;
+			}
 		}
 	}
+	if (row)
+		BZ_Free(row);
 	*width = w;
 	*height = h;
 	//FIXME: should probably convert to e5bgr9 or something.
 	*format = PTI_RGBA32F;
 	return r;
 fail:
+	if (row)
+		BZ_Free(row);
 	BZ_Free(r);
 	return NULL;
 }

engine/client/m_options.c

@@ -1062,17 +1062,25 @@ struct
 	{	"shib",
 		"Performance optimisations for large/detailed maps.",
 
-		"if r_dynamic >= 1\n"
-		"{\n"	//fake it anyway.
-			"set r_shadow_realtime_dlight 1\n"
-			"set r_shadow_realtime_dlight_shadows 0\n"
-			"set r_dynamic 0\n"
-		"}\n"
 		"set r_temporalscenecache 1\n"	//the main speedup.
 		"set r_lightstylespeed 0\n"		//FIXME: we shouldn't need this, but its too stuttery without.
 		"set sv_autooffload 1\n"		//Needs polish still.
 		"set gl_pbolightmaps 1\n"		//FIXME: this needs to be the default eventually.
 	},
+	{	"dm",
+		"Various settings to make you more competitive."
+
+		"set cl_yieldcpu 0\n"
+		"set v_kickroll 0\n"		//roll change when taking damage
+		"set v_kickpitch 0\n"		//pitch change when taking damage
+		"set v_damagecshift 0\n"	//colour change when taking damage
+		"set v_gunkick 0\n"			//recoil when firing
+		"set cl_rollangle 0\n"		//rolling when strafing
+		"set cl_bob 0\n"			//view bobbing when moving.
+#ifdef _WIN32
+		"set sys_clockprecision 1\n"	//windows kinda sucks otherwise
+#endif
+	},
 	{	"qw",
 		"Enable QuakeWorld-isms, for better gameplay.",
 

engine/gl/gl_warp.c

@@ -79,22 +79,47 @@ void R_SetSky(const char *sky)
 	shadername = va("skybox_%s", sky);
 	if (!forcedsky || strcmp(shadername, forcedsky->name))
 	{
+		texnums_t tex;
 		forcedsky = NULL;	//fall back to regular skies if forcing fails.
 
 		if (!*sky)
 			return; //no need to do anything
 
+		memset(&tex, 0, sizeof(tex));
+
+		tex.base = R_LoadHiResTexture(sky, "env:gfx/env", IF_LOADNOW|IF_NOMIPMAP);
+		if (tex.reflectcube && tex.reflectcube->status == TEX_LOADING)
+			COM_WorkerPartialSync(tex.reflectcube, &tex.reflectcube->status, TEX_LOADING);
+		if (tex.base->width && TEXLOADED(tex.base))
+		{
+			forcedsky = R_RegisterShader(shadername, 0,
+				"{\n"
+					"sort sky\n"
+					"program defaultsky#EQUI\n"
+					"{\n"
+						"if !$unmaskedsky\n"	/* Q2/HL require the skybox to not draw over geometry, shouldn't we force it? --eukara */
+							"depthwrite\n"
+						"endif\n"
+						"map \"$diffuse\"\n"
+						"tcgen skybox\n"
+					"}\n"
+					"surfaceparm nodlight\n"
+				"surfaceparm sky\n"
+				"}");
+			R_BuildDefaultTexnums(&tex, forcedsky, IF_WORLDTEX);
+			return;
+		}
+
 		//if we have cubemaps then we can just go and use a cubemap for our skybox
 		if (sh_config.havecubemaps)
 		{
-			texnums_t tex;
 			memset(&tex, 0, sizeof(tex));
-			tex.reflectcube = R_LoadHiResTexture(sky, "env:gfx/env", IF_LOADNOW|IF_TEXTYPE_CUBE|IF_CLAMP);
+			tex.reflectcube = R_LoadHiResTexture(sky, "env:gfx/env", IF_LOADNOW|IF_TEXTYPE_CUBE|IF_NOMIPMAP|IF_CLAMP);
 			if (tex.reflectcube && tex.reflectcube->status == TEX_LOADING)
 				COM_WorkerPartialSync(tex.reflectcube, &tex.reflectcube->status, TEX_LOADING);
 			if (tex.reflectcube->width && TEXLOADED(tex.reflectcube))
 			{
-				forcedsky = R_RegisterShader(va("skybox_%s", sky), 0,
+				forcedsky = R_RegisterShader(shadername, 0,
 					"{\n"
 						"sort sky\n"
 						"program defaultskybox\n"

engine/shaders/glsl/defaultsky.glsl

@@ -22,6 +22,16 @@ void main ()
 {
 	vec2 tccoord;
 	vec3 dir = pos - e_eyepos;
+
+#ifdef EQUI
+#define PI 3.1415926535897932384626433832795
+	dir = normalize(dir);
+	tccoord.x = atan(dir.x,dir.y) / (PI*2.0) + 0.5;
+	tccoord.y = acos(dir.z) / PI;
+	
+	vec3 sky = vec3(texture2D(s_base, tccoord));
+#else
+
 	dir.z *= 3.0;
 	dir.xy /= 0.5*length(dir);
 	tccoord = (dir.xy + e_time*0.03125);
@@ -29,6 +39,8 @@ void main ()
 	tccoord = (dir.xy + e_time*0.0625);
 	vec4 clouds = texture2D(s_cloud, tccoord);
 	sky = (sky.rgb*(1.0-clouds.a)) + (clouds.a*clouds.rgb);
+#endif
+
 #ifdef FOG
 	sky.rgb = mix(sky.rgb, w_fogcolour, float(r_skyfog)*w_fogalpha);	//flat fog ignoring actual geometry
 	//sky = fog3(sky);													//fog according to actual geometry