minor fixes.

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5025 fc73d0e0-1445-4013-8a0c-d673dee63da5

engine/client/cl_demo.c

@@ -2272,7 +2272,7 @@ void CL_PlayDemoFile(vfsfile_t *f, char *demoname, qboolean issyspath)
 				break;
 			len--;
 			VFS_READ(f, &type, sizeof(type));
-			while (len >= 2 && (type == svcq2_stufftext) || (type == svcq2_print))
+			while (len >= 2 && (type == svcq2_stufftext || type == svcq2_print))
 			{
 				while (len > 0)
 				{

engine/client/m_download.c

@@ -1344,8 +1344,6 @@ typedef struct {
 	qboolean populated;
 } dlmenu_t;
 
-static int autoupdatesetting = UPD_UNSUPPORTED;
-
 static void COM_QuotedConcat(const char *cat, char *buf, size_t bufsize)
 {
 	const unsigned char *gah;
@@ -2192,6 +2190,7 @@ void PM_Shutdown(void)
 #endif
 
 #ifdef DOWNLOADMENU
+static int autoupdatesetting = UPD_UNSUPPORTED;
 static void MD_Draw (int x, int y, struct menucustom_s *c, struct menu_s *m)
 {
 	package_t *p;

engine/gl/gl_rlight.c

@@ -529,6 +529,7 @@ void R_GenDlightMesh(struct batch_s *batch)
 	int lightflags = batch->surf_count;
 
 	BE_SelectDLight(l, l->color, l->axis, lightflags);
+#ifdef RTLIGHTS
 	if (lightflags & LSHADER_SMAP)
 	{
 		if (!Sh_GenerateShadowMap(l))
@@ -539,6 +540,7 @@ void R_GenDlightMesh(struct batch_s *batch)
 		BE_SelectEntity(&r_worldentity);
 		BE_SelectMode(BEM_STANDARD);
 	}
+#endif
 
 	if (!R_BuildDlightMesh (l, 2, 1, 2))
 	{
@@ -582,6 +584,7 @@ void R_GenDlightBatches(batch_t *batches[])
 							"lpp_light\n"
 						"}\n"
 					);
+#ifdef RTLIGHTS
 		lpplight_shader[LSHADER_SMAP] = R_RegisterShader("lpp_light#PCF", SUF_NONE,
 						"{\n"
 							"program lpp_light\n"
@@ -594,6 +597,7 @@ void R_GenDlightBatches(batch_t *batches[])
 							"lpp_light\n"
 						"}\n"
 					);
+#endif
 	}
 
 	l = cl_dlights+rtlights_first;
@@ -606,8 +610,10 @@ void R_GenDlightBatches(batch_t *batches[])
 			continue;
 
 		lmode = 0;
+#ifdef RTLIGHTS
 		if (!(((i >= RTL_FIRST)?!r_shadow_realtime_world_shadows.ival:!r_shadow_realtime_dlight_shadows.ival) || l->flags & LFLAG_NOSHADOWS))
 			lmode |= LSHADER_SMAP;
+#endif
 //		if (TEXLOADED(l->cubetexture))
 //			lmode |= LSHADER_CUBE;
 

engine/shaders/glsl/lpp_depthnorm.glsl

@@ -1,16 +1,23 @@
 !!permu BUMP
 !!permu SKELETAL
+!!cvarf r_glsl_offsetmapping_scale
 
 //light pre-pass rendering (defered lighting)
 //this is the initial pass, that draws the surface normals and depth to the initial colour buffer
 
+#include "sys/defs.h"
+
+#if defined(OFFSETMAPPING)
+varying vec3 eyevector;
+#endif
+
 varying vec3 norm, tang, bitang;
 #if defined(BUMP)
 varying vec2 tc;
 #endif
 #ifdef VERTEX_SHADER
 #include "sys/skeletal.h"
-attribute vec2 v_texcoord;
+
 void main()
 {
 #if defined(BUMP)
@@ -19,21 +26,34 @@ void main()
 #else
 	gl_Position = skeletaltransform_n(norm);
 #endif
+
+#if defined(OFFSETMAPPING)
+	vec3 eyeminusvertex = e_eyepos - v_position.xyz;
+	eyevector.x = dot(eyeminusvertex, v_svector.xyz);
+	eyevector.y = dot(eyeminusvertex, v_tvector.xyz);
+	eyevector.z = dot(eyeminusvertex, v_normal.xyz);
+#endif
 }
 #endif
 #ifdef FRAGMENT_SHADER
-#if defined(BUMP)
-uniform sampler2D s_t0;
+#ifdef OFFSETMAPPING
+#include "sys/offsetmapping.h"
 #endif
 void main()
 {
+//adjust texture coords for offsetmapping
+#ifdef OFFSETMAPPING
+	vec2 tcoffsetmap = offsetmap(s_normalmap, tc, eyevector);
+#define tc tcoffsetmap
+#endif
+
 	vec3 onorm;
 #if defined(BUMP)
-	vec3 bm = 2.0*texture2D(s_t0, tc).xyz - 1.0;
+	vec3 bm = 2.0*texture2D(s_normalmap, tc).xyz - 1.0;
 	onorm = normalize(bm.x * tang + bm.y * bitang + bm.z * norm);
 #else
 	onorm = norm;
 #endif
-	gl_FragColor = vec4(onorm.xyz, gl_FragCoord.z / gl_FragCoord.w);
+	gl_FragColor = vec4(onorm.xyz, gl_FragCoord.z);
 }
 #endif

engine/shaders/glsl/lpp_light.glsl

@@ -3,6 +3,9 @@
 //you can blame Electro for much of the maths in here.
 //fixme: no fog
 
+//s_t0 is the normals and depth
+//output should be amount of light hitting the surface.
+
 varying vec4 tf;
 #ifdef VERTEX_SHADER
 void main()
@@ -12,27 +15,147 @@ void main()
 }
 #endif
 #ifdef FRAGMENT_SHADER
-uniform sampler2D s_t0;
+uniform sampler2D s_t0;	//norm.xyz, depth
 uniform vec3 l_lightposition;
 uniform mat4 m_invviewprojection;
 uniform vec3 l_lightcolour;
 uniform float l_lightradius;
+uniform mat4 l_cubematrix;
+
+
+
+
+
+#ifdef PCF
+#define USE_ARB_SHADOW
+#ifndef USE_ARB_SHADOW
+//fall back on regular samplers if we must
+#define sampler2DShadow sampler2D
+#endif
+uniform sampler2DShadow s_shadowmap;
+
+uniform vec4 l_shadowmapproj; //light projection matrix info
+uniform vec2 l_shadowmapscale;	//xy are the texture scale, z is 1, w is the scale.
+vec3 ShadowmapCoord(vec4 cubeproj)
+{
+#ifdef SPOT
+	//bias it. don't bother figuring out which side or anything, its not needed
+	//l_projmatrix contains the light's projection matrix so no other magic needed
+	return ((cubeproj.xyz-vec3(0.0,0.0,0.015))/cubeproj.w + vec3(1.0, 1.0, 1.0)) * vec3(0.5, 0.5, 0.5);
+//#elif defined(CUBESHADOW)
+//	vec3 shadowcoord = vshadowcoord.xyz / vshadowcoord.w;
+//	#define dosamp(x,y) shadowCube(s_shadowmap, shadowcoord + vec2(x,y)*texscale.xy).r
+#else
+	//figure out which axis to use
+	//texture is arranged thusly:
+	//forward left  up
+	//back    right down
+	vec3 dir = abs(cubeproj.xyz);
+	//assume z is the major axis (ie: forward from the light)
+	vec3 t = cubeproj.xyz;
+	float ma = dir.z;
+	vec3 axis = vec3(0.5/3.0, 0.5/2.0, 0.5);
+	if (dir.x > ma)
+	{
+		ma = dir.x;
+		t = cubeproj.zyx;
+		axis.x = 0.5;
+	}
+	if (dir.y > ma)
+	{
+		ma = dir.y;
+		t = cubeproj.xzy;
+		axis.x = 2.5/3.0;
+	}
+	//if the axis is negative, flip it.
+	if (t.z > 0.0)
+	{
+		axis.y = 1.5/2.0;
+		t.z = -t.z;
+	}
+
+	//we also need to pass the result through the light's projection matrix too
+	//the 'matrix' we need only contains 5 actual values. and one of them is a -1. So we might as well just use a vec4.
+	//note: the projection matrix also includes scalers to pinch the image inwards to avoid sampling over borders, as well as to cope with non-square source image
+	//the resulting z is prescaled to result in a value between -0.5 and 0.5.
+	//also make sure we're in the right quadrant type thing
+	return axis + ((l_shadowmapproj.xyz*t.xyz + vec3(0.0, 0.0, l_shadowmapproj.w)) / -t.z);
+#endif
+}
+
+float ShadowmapFilter(vec4 vtexprojcoord)
+{
+	vec3 shadowcoord = ShadowmapCoord(vtexprojcoord);
+
+	#if 0//def GL_ARB_texture_gather
+		vec2 ipart, fpart;
+		#define dosamp(x,y) textureGatherOffset(s_shadowmap, ipart.xy, vec2(x,y)))
+		vec4 tl = step(shadowcoord.z, dosamp(-1.0, -1.0));
+		vec4 bl = step(shadowcoord.z, dosamp(-1.0, 1.0));
+		vec4 tr = step(shadowcoord.z, dosamp(1.0, -1.0));
+		vec4 br = step(shadowcoord.z, dosamp(1.0, 1.0));
+		//we now have 4*4 results, woo
+		//we can just average them for 1/16th precision, but that's still limited graduations
+		//the middle four pixels are 'full strength', but we interpolate the sides to effectively give 3*3
+		vec4 col =     vec4(tl.ba, tr.ba) + vec4(bl.rg, br.rg) + //middle two rows are full strength
+				mix(vec4(tl.rg, tr.rg), vec4(bl.ba, br.ba), fpart.y); //top+bottom rows
+		return dot(mix(col.rgb, col.agb, fpart.x), vec3(1.0/9.0));	//blend r+a, gb are mixed because its pretty much free and gives a nicer dot instruction instead of lots of adds.
+
+	#else
+#ifdef USE_ARB_SHADOW
+		//with arb_shadow, we can benefit from hardware acclerated pcf, for smoother shadows
+		#define dosamp(x,y) shadow2D(s_shadowmap, shadowcoord.xyz + (vec3(x,y,0.0)*l_shadowmapscale.xyx)).r
+#else
+		//this will probably be a bit blocky.
+		#define dosamp(x,y) float(texture2D(s_shadowmap, shadowcoord.xy + (vec2(x,y)*l_shadowmapscale.xy)).r >= shadowcoord.z)
+#endif
+		float s = 0.0;
+		#if r_glsl_pcf >= 1 && r_glsl_pcf < 5
+			s += dosamp(0.0, 0.0);
+			return s;
+		#elif r_glsl_pcf >= 5 && r_glsl_pcf < 9
+			s += dosamp(-1.0, 0.0);
+			s += dosamp(0.0, -1.0);
+			s += dosamp(0.0, 0.0);
+			s += dosamp(0.0, 1.0);
+			s += dosamp(1.0, 0.0);
+			return s/5.0;
+		#else
+			s += dosamp(-1.0, -1.0);
+			s += dosamp(-1.0, 0.0);
+			s += dosamp(-1.0, 1.0);
+			s += dosamp(0.0, -1.0);
+			s += dosamp(0.0, 0.0);
+			s += dosamp(0.0, 1.0);
+			s += dosamp(1.0, -1.0);
+			s += dosamp(1.0, 0.0);
+			s += dosamp(1.0, 1.0);
+			return s/9.0;
+		#endif
+	#endif
+}
+#else
+float ShadowmapFilter(vec4 vtexprojcoord)
+{
+	return 1.0;
+}
+#endif
+
+
+
+
+
 vec3 calcLightWorldPos(vec2 screenPos, float depth)
 {
-	vec4 pos;
-	pos.x	= screenPos.x;
-	pos.y	= screenPos.y;
-	pos.z	= depth;
-	pos.w	= 1.0;
-	pos	= m_invviewprojection * pos;
+	vec4 pos = m_invviewprojection * vec4(screenPos.xy, (depth*2.0)-1.0, 1.0);
 	return pos.xyz / pos.w;
 }
 void main ()
 {
 	vec3 lightColour		= l_lightcolour.rgb;
-	float lightIntensity	= 1.0;
+	float lightIntensity		= 1.0;
 	float lightAttenuation	= l_lightradius;	// fixme: just use the light radius for now, use better near/far att math separately once working
-	float radiusFar		= l_lightradius;
+	float radiusFar			= l_lightradius;
 	float radiusNear		= l_lightradius*0.5;
 
 	vec2 fc;
@@ -44,15 +167,22 @@ void main ()
 	/* calc where the wall that generated this sample came from */
 	vec3 worldPos	= calcLightWorldPos(fc, depth);
 
+	/*we need to know the cube projection (for both cubemaps+shadows)*/
+	vec4 cubeaxis = l_cubematrix*vec4(worldPos.xyz, 1.0);
+
 	/*calc diffuse lighting term*/
 	vec3 lightDir = l_lightposition - worldPos;
 	float zdiff = 1.0 - clamp(length(lightDir) / lightAttenuation, 0.0, 1.0);
 	float atten = (radiusFar * zdiff) / (radiusFar - radiusNear);
 	atten = pow(atten, 2.0);
 	lightDir = normalize(lightDir);
-	float nDotL = dot(norm, lightDir) * atten;
-	float lightDiffuse = max(0.0, nDotL);
+	float nDotL = dot(norm, lightDir);
+	float lightDiffuse = max(0.0, nDotL) * atten;
 
-	gl_FragColor = vec4(lightDiffuse * (lightColour * lightIntensity), 1.0);
+	//fixme: apply fog
+	//fixme: output a specular term
+	//fixme: cubemap filters
+
+	gl_FragColor = vec4(lightDiffuse * (lightColour * lightIntensity) * ShadowmapFilter(cubeaxis), 1.0);
 }
 #endif

engine/shaders/glsl/lpp_wall.glsl

@@ -1,34 +1,59 @@
+!!permu BUMP	//for offsetmapping rather than bumpmapping (real bumps are handled elsewhere)
+!!cvarf r_glsl_offsetmapping_scale
+
 //the final defered lighting pass.
 //the lighting values were written to some render target, which is fed into this shader, and now we draw all the wall textures with it.
 
+#include "sys/defs.h"
+
+#if defined(OFFSETMAPPING)
+varying vec3 eyevector;
+#endif
+
+
 varying vec2 tc, lm;
 varying vec4 tf;
 #ifdef VERTEX_SHADER
-attribute vec2 v_texcoord;
-attribute vec2 v_lmcoord;
 void main ()
 {
 	tc = v_texcoord;
 	lm = v_lmcoord;
 	gl_Position = tf = ftetransform();
+
+#if defined(OFFSETMAPPING)
+	vec3 eyeminusvertex = e_eyepos - v_position.xyz;
+	eyevector.x = dot(eyeminusvertex, v_svector.xyz);
+	eyevector.y = dot(eyeminusvertex, v_tvector.xyz);
+	eyevector.z = dot(eyeminusvertex, v_normal.xyz);
+#endif
 }
 #endif
 #ifdef FRAGMENT_SHADER
-uniform sampler2D s_t0;
-uniform sampler2D s_t1;
-uniform sampler2D s_t2;
-uniform vec4 e_lmscale;
+uniform sampler2D s_t0;	//light gbuffer
+#ifdef OFFSETMAPPING
+#include "sys/offsetmapping.h"
+#endif
 void main ()
 {
+//adjust texture coords for offsetmapping
+#ifdef OFFSETMAPPING
+	vec2 tcoffsetmap = offsetmap(s_normalmap, tc, eyevector);
+#define tc tcoffsetmap
+#endif
+
 	vec2 nst;
 	nst = tf.xy / tf.w;
 	nst = (1.0 + nst) / 2.0;
-	vec4 l = texture2D(s_t0, nst)*5.0;
-	vec4 c = texture2D(s_t1, tc);
-	vec3 lmsamp = texture2D(s_t2, lm).rgb*e_lmscale.rgb;
+	vec4 l = texture2D(s_t0, nst);
+	vec4 c = texture2D(s_diffuse, tc);
+//fixme: top+bottom should add upper+lower colours to c here
+	vec3 lmsamp = texture2D(s_lightmap, lm).rgb*e_lmscale.rgb;
+//fixme: fog the legacy lightmap data
 	vec3 diff = l.rgb;
-	vec3 chrom = diff / (0.001 + dot(diff, vec3(0.3, 0.59, 0.11)));
-	vec3 spec = chrom * l.a;
+//	vec3 chrom = diff / (0.001 + dot(diff, vec3(0.3, 0.59, 0.11)));
+//	vec3 spec = chrom * l.a;
+//fixme: do specular somehow
 	gl_FragColor = vec4((diff + lmsamp) * c.xyz, 1.0);
+//fixme: fullbrights should add to the rgb value
 }
 #endif