Platform: Rework defaultskin and defaultwall glsl their 'gl_ldr' hack to

how certain GoldSrc games look, with more accurate lightmap banding.

platform/base_glsl.pk3dir/glsl/defaultskin.glsl

@@ -78,9 +78,19 @@ varying vec3 light;
 
 		light *= e_lmscale.r;
 
-	#if gl_ldr==1
+		if (gl_ldr == 1.0) {
-		light *= 0.75;
+			if (light.r > 1.5)
-	#endif
+				light.r = 1.5f;
+			if (light.g > 1.5)
+				light.g = 1.5f;
+			if (light.b > 1.5)
+				light.b = 1.5f;
+
+			light.rgb * 0.5f;
+			light.rgb = floor(light.rgb * vec3(32,64,32))/vec3(32,64,32);
+			light.rgb * 2.0f;
+			light.rgb *= 0.75f;
+		}
 
 #ifdef CHROME
 		vec3 rorg = rlv(vec3(0,0,0), w, e_light_dir);

platform/base_glsl.pk3dir/glsl/defaultwall.glsl

@@ -12,6 +12,7 @@
 !!cvardf gl_mono
 !!cvardf gl_kdither
 !!cvardf gl_stipplealpha
+!!cvardf gl_ldr
 
 !!cvardf r_skipDiffuse
 !!cvardf r_skipLightmap
@@ -86,6 +87,19 @@ varying mat3 invsurface;
 #else
 		lightmaps  = texture2D(s_lightmap, lm0).rgb * e_lmscale.rgb;
 #endif
+	#if gl_ldr==1
+		if (lightmaps.r > 1.5)
+			lightmaps.r = 1.5f;
+		if (lightmaps.g > 1.5)
+			lightmaps.g = 1.5f;
+		if (lightmaps.b > 1.5)
+			lightmaps.b = 1.5f;
+
+		lightmaps.rgb * 0.5f;
+		lightmaps.rgb = floor(lightmaps.rgb * vec3(32,64,32))/vec3(32,64,32);
+		lightmaps.rgb * 2.0f;
+	#endif
+
 		return lightmaps;
 	}
 #else
@@ -142,6 +156,7 @@ varying mat3 invsurface;
 		}
 #endif
 		/* lighting */
+		//diffuse_f.rgb = vec3(1,1,1);
 		diffuse_f.rgb *= lightmap_fragment();
 
 #ifdef REFLECTCUBE