X-Git-Url: http://de.git.xonotic.org/?a=blobdiff_plain;f=r_sky.c;h=63f2820c311013951328a084ffffa243330fcbdb;hb=63a4ff4563c4bbd232c265a288e9890e4015bd93;hp=deec343915c83d07bc49406215345ae01786f461;hpb=ea7c24e1fb41f3b1df984ac0eed6881c9fde16f5;p=xonotic%2Fdarkplaces.git

diff --git a/r_sky.c b/r_sky.c
index deec3439..63f2820c 100644
--- a/r_sky.c
+++ b/r_sky.c
@@ -1,99 +1,46 @@
 
 #include "quakedef.h"
+#include "image.h"
 
-void LoadSky_f(void);
-
-cvar_t r_skyquality = {CVAR_SAVE, "r_skyquality", "2"};
-cvar_t r_skyflush = {0, "r_skyflush", "0"};
-
-static char skyworldname[1024];
-rtexture_t *solidskytexture;
-rtexture_t *alphaskytexture;
-static qboolean skyavailable_quake;
-static qboolean skyavailable_box;
-static rtexturepool_t *skytexturepool;
-
+cvar_t r_sky = {CVAR_SAVE, "r_sky", "1"};
+qboolean skyavailable_quake;
+qboolean skyavailable_box;
 int skyrendernow;
 int skyrendermasked;
-int skyrenderglquake;
-
-static void r_sky_start(void)
-{
-	skytexturepool = R_AllocTexturePool();
-	solidskytexture = NULL;
-	alphaskytexture = NULL;
-}
-
-static void r_sky_shutdown(void)
-{
-	R_FreeTexturePool(&skytexturepool);
-	solidskytexture = NULL;
-	alphaskytexture = NULL;
-}
-
-int R_SetSkyBox(char *sky);
-
-static void r_sky_newmap(void)
-{
-	skyavailable_quake = false;
-	if (!strcmp(skyworldname, cl.worldmodel->name))
-		skyavailable_quake = true;
-}
-
-void R_Sky_Init(void)
-{
-	Cmd_AddCommand ("loadsky", &LoadSky_f);
-	Cvar_RegisterVariable (&r_skyquality);
-	Cvar_RegisterVariable (&r_skyflush);
-	R_RegisterModule("R_Sky", r_sky_start, r_sky_shutdown, r_sky_newmap);
-}
 
+static rtexture_t *solidskytexture;
+static rtexture_t *alphaskytexture;
 static int skyrendersphere;
 static int skyrenderbox;
+static rtexturepool_t *skytexturepool;
+static char skyname[256];
+static char *suf[6] = {"rt", "bk", "lf", "ft", "up", "dn"};
+static rtexture_t *skyboxside[6];
 
 void R_SkyStartFrame(void)
 {
 	skyrendernow = false;
 	skyrendersphere = false;
 	skyrenderbox = false;
-	skyrenderglquake = false;
 	skyrendermasked = false;
-	if (r_skyquality.integer >= 1 && !fogenabled)
+	if (r_sky.integer && !fogenabled)
 	{
 		if (skyavailable_box)
 			skyrenderbox = true;
 		else if (skyavailable_quake)
-		{
-			switch(r_skyquality.integer)
-			{
-			case 1:
-				skyrenderglquake = true;
-				break;
-			default:
-			case 2:
-				skyrendersphere = true;
-				break;
-			}
-		}
-		if (skyrenderbox || skyrendersphere)
-		{
-			// for depth-masked sky, render the sky on the first sky surface encountered
-			skyrendernow = true;
-			skyrendermasked = true;
-		}
+			skyrendersphere = true;
+		// for depth-masked sky, render the sky on the first sky surface encountered
+		skyrendernow = true;
+		skyrendermasked = true;
 	}
 }
 
-static char skyname[256];
-
 /*
 ==================
 R_SetSkyBox
 ==================
 */
-static char *suf[6] = {"rt", "bk", "lf", "ft", "up", "dn"};
-static rtexture_t *skyboxside[6];
-int R_SetSkyBox(char *sky)
+int R_SetSkyBox(const char *sky)
 {
 	int i;
 	char name[1024];
@@ -127,7 +74,7 @@ int R_SetSkyBox(char *sky)
 				continue;
 			}
 		}
-		skyboxside[i] = R_LoadTexture(skytexturepool, va("skyboxside%d", i), image_width, image_height, image_rgba, TEXTYPE_RGBA, TEXF_PRECACHE);
+		skyboxside[i] = R_LoadTexture2D(skytexturepool, va("skyboxside%d", i), image_width, image_height, image_rgba, TEXTYPE_RGBA, TEXF_CLAMP | TEXF_PRECACHE, NULL);
 		Mem_Free(image_rgba);
 	}
 
@@ -168,85 +115,90 @@ void LoadSky_f (void)
 	}
 }
 
-#define R_SkyBoxPolyVec(i,s,t,x,y,z) \
-	vert[i][0] = (x) * 1024.0f + r_origin[0];\
-	vert[i][1] = (y) * 1024.0f + r_origin[1];\
-	vert[i][2] = (z) * 1024.0f + r_origin[2];\
-	st[i][0] = (s) * (254.0f/256.0f) + (1.0f/256.0f);\
-	st[i][1] = (t) * (254.0f/256.0f) + (1.0f/256.0f);
-
-int skyboxindex[6] = {0, 1, 2, 0, 2, 3};
-
 static void R_SkyBox(void)
 {
-	float vert[4][4], st[4][2];
-	rmeshinfo_t m;
+	rmeshstate_t m;
+
+#define R_SkyBoxPolyVec(i,s,t,x,y,z) \
+	varray_vertex[i * 4 + 0] = (x) * 16.0f;\
+	varray_vertex[i * 4 + 1] = (y) * 16.0f;\
+	varray_vertex[i * 4 + 2] = (z) * 16.0f;\
+	varray_texcoord[0][i * 4 + 0] = (s);\
+	varray_texcoord[0][i * 4 + 1] = (t);
+
 	memset(&m, 0, sizeof(m));
-	m.transparent = false;
 	m.blendfunc1 = GL_ONE;
 	m.blendfunc2 = GL_ZERO;
-	m.numtriangles = 2;
-	m.numverts = 4;
-	m.index = skyboxindex;
-	m.vertex = &vert[0][0];
-	m.vertexstep = sizeof(float[4]);
-	m.cr = 1;
-	m.cg = 1;
-	m.cb = 1;
-	m.ca = 1;
-	m.texcoords[0] = &st[0][0];
-	m.texcoordstep[0] = sizeof(float[2]);
+	m.depthdisable = true; // don't modify or read zbuffer
 	m.tex[0] = R_GetTexture(skyboxside[3]); // front
+	R_Mesh_State(&m);
+
+	GL_Color(r_colorscale, r_colorscale, r_colorscale, 1);
+	
 	R_SkyBoxPolyVec(0, 1, 0,  1, -1,  1);
 	R_SkyBoxPolyVec(1, 1, 1,  1, -1, -1);
 	R_SkyBoxPolyVec(2, 0, 1,  1,  1, -1);
 	R_SkyBoxPolyVec(3, 0, 0,  1,  1,  1);
-	R_Mesh_Draw(&m);
+	R_Mesh_Draw(4, 2, polygonelements);
 	m.tex[0] = R_GetTexture(skyboxside[1]); // back
+	R_Mesh_State(&m);
 	R_SkyBoxPolyVec(0, 1, 0, -1,  1,  1);
 	R_SkyBoxPolyVec(1, 1, 1, -1,  1, -1);
 	R_SkyBoxPolyVec(2, 0, 1, -1, -1, -1);
 	R_SkyBoxPolyVec(3, 0, 0, -1, -1,  1);
-	R_Mesh_Draw(&m);
+	R_Mesh_Draw(4, 2, polygonelements);
 	m.tex[0] = R_GetTexture(skyboxside[0]); // right
+	R_Mesh_State(&m);
 	R_SkyBoxPolyVec(0, 1, 0,  1,  1,  1);
 	R_SkyBoxPolyVec(1, 1, 1,  1,  1, -1);
 	R_SkyBoxPolyVec(2, 0, 1, -1,  1, -1);
 	R_SkyBoxPolyVec(3, 0, 0, -1,  1,  1);
-	R_Mesh_Draw(&m);
+	R_Mesh_Draw(4, 2, polygonelements);
 	m.tex[0] = R_GetTexture(skyboxside[2]); // left
+	R_Mesh_State(&m);
 	R_SkyBoxPolyVec(0, 1, 0, -1, -1,  1);
 	R_SkyBoxPolyVec(1, 1, 1, -1, -1, -1);
 	R_SkyBoxPolyVec(2, 0, 1,  1, -1, -1);
 	R_SkyBoxPolyVec(3, 0, 0,  1, -1,  1);
-	R_Mesh_Draw(&m);
+	R_Mesh_Draw(4, 2, polygonelements);
 	m.tex[0] = R_GetTexture(skyboxside[4]); // up
+	R_Mesh_State(&m);
 	R_SkyBoxPolyVec(0, 1, 0,  1, -1,  1);
 	R_SkyBoxPolyVec(1, 1, 1,  1,  1,  1);
 	R_SkyBoxPolyVec(2, 0, 1, -1,  1,  1);
 	R_SkyBoxPolyVec(3, 0, 0, -1, -1,  1);
-	R_Mesh_Draw(&m);
+	R_Mesh_Draw(4, 2, polygonelements);
 	m.tex[0] = R_GetTexture(skyboxside[5]); // down
+	R_Mesh_State(&m);
 	R_SkyBoxPolyVec(0, 1, 0,  1,  1, -1);
 	R_SkyBoxPolyVec(1, 1, 1,  1, -1, -1);
 	R_SkyBoxPolyVec(2, 0, 1, -1, -1, -1);
 	R_SkyBoxPolyVec(3, 0, 0, -1,  1, -1);
-	R_Mesh_Draw(&m);
+	R_Mesh_Draw(4, 2, polygonelements);
 }
 
-#define skygridx 16
+#define skygridx 32
 #define skygridx1 (skygridx + 1)
 #define skygridxrecip (1.0f / (skygridx))
 #define skygridy 32
 #define skygridy1 (skygridy + 1)
 #define skygridyrecip (1.0f / (skygridy))
+#define skysphere_numverts (skygridx1 * skygridy1)
+#define skysphere_numtriangles (skygridx * skygridy * 2)
+static float skysphere_vertex[skysphere_numverts * 4];
+static float skysphere_texcoord[skysphere_numverts * 4];
+static int skysphere_elements[skysphere_numtriangles * 3];
 
-static float skysphere[skygridx1*skygridy1*5];
-static int skysphereindices[skygridx*skygridy*6];
-static void skyspherecalc(float *sphere, float dx, float dy, float dz)
+static void skyspherecalc(void)
 {
-	float a, b, x, ax, ay, v[3], length;
-	int i, j, *index;
+	int i, j, *e;
+	float a, b, x, ax, ay, v[3], length, *vertex, *texcoord;
+	float dx, dy, dz;
+	dx = 16;
+	dy = 16;
+	dz = 16 / 3;
+	vertex = skysphere_vertex;
+	texcoord = skysphere_texcoord;
 	for (j = 0;j <= skygridy;j++)
 	{
 		a = j * skygridyrecip;
@@ -260,104 +212,110 @@ static void skyspherecalc(float *sphere, float dx, float dy, float dz)
 			v[1] = ay*x * dy;
 			v[2] = -sin(b * M_PI * 2) * dz;
 			length = 3.0f / sqrt(v[0]*v[0]+v[1]*v[1]+(v[2]*v[2]*9));
-			*sphere++ = v[0] * length;
-			*sphere++ = v[1] * length;
-			*sphere++ = v[0];
-			*sphere++ = v[1];
-			*sphere++ = v[2];
+			*texcoord++ = v[0] * length;
+			*texcoord++ = v[1] * length;
+			*texcoord++ = 0;
+			*texcoord++ = 0;
+			*vertex++ = v[0];
+			*vertex++ = v[1];
+			*vertex++ = v[2];
+			*vertex++ = 1;
 		}
 	}
-	index = skysphereindices;
+	e = skysphere_elements;
 	for (j = 0;j < skygridy;j++)
 	{
 		for (i = 0;i < skygridx;i++)
 		{
-			*index++ =  j      * skygridx1 + i;
-			*index++ =  j      * skygridx1 + i + 1;
-			*index++ = (j + 1) * skygridx1 + i;
+			*e++ =  j      * skygridx1 + i;
+			*e++ =  j      * skygridx1 + i + 1;
+			*e++ = (j + 1) * skygridx1 + i;
 
-			*index++ =  j      * skygridx1 + i + 1;
-			*index++ = (j + 1) * skygridx1 + i + 1;
-			*index++ = (j + 1) * skygridx1 + i;
+			*e++ =  j      * skygridx1 + i + 1;
+			*e++ = (j + 1) * skygridx1 + i + 1;
+			*e++ = (j + 1) * skygridx1 + i;
 		}
 		i++;
 	}
 }
 
-static void skyspherearrays(float *vert, float *tex, float *tex2, float *source, float s, float s2)
-{
-	float *v, *t, *t2, radius;
-	int i;
-	v = vert;
-	t = tex;
-	t2 = tex2;
-	radius = r_farclip - 8;
-	for (i = 0;i < (skygridx1*skygridy1);i++)
-	{
-		*t++ = source[0] + s;
-		*t++ = source[1] + s;
-		*t2++ = source[0] + s2;
-		*t2++ = source[1] + s2;
-		*v++ = source[2] + r_origin[0];
-		*v++ = source[3] + r_origin[1];
-		*v++ = source[4] + r_origin[2];
-		*v++ = 0;
-		source += 5;
-	}
-}
-
 static void R_SkySphere(void)
 {
-	float speedscale, speedscale2;
-	float vert[skygridx1*skygridy1*4], tex[skygridx1*skygridy1*2], tex2[skygridx1*skygridy1*2];
+	int i;
+	float speedscale, *t;
 	static qboolean skysphereinitialized = false;
-	rmeshinfo_t m;
+	rmeshstate_t m;
 	if (!skysphereinitialized)
 	{
 		skysphereinitialized = true;
-		skyspherecalc(skysphere, 1024, 1024, 1024 / 3);
+		skyspherecalc();
 	}
+
+	// scroll speed for upper layer
+	speedscale = cl.time*8.0/128.0;
+	// wrap the scroll just to be extra kind to float accuracy
+	speedscale -= (int)speedscale;
+
+	R_Mesh_ResizeCheck(skysphere_numverts);
+
 	memset(&m, 0, sizeof(m));
-	m.transparent = false;
 	m.blendfunc1 = GL_ONE;
 	m.blendfunc2 = GL_ZERO;
-	m.numtriangles = skygridx*skygridy*2;
-	m.numverts = skygridx1*skygridy1;
-	m.index = skysphereindices;
-	m.vertex = vert;
-	m.vertexstep = sizeof(float[4]);
-	m.cr = 1;
-	m.cg = 1;
-	m.cb = 1;
-	m.ca = 1;
-	m.texcoords[0] = tex;
-	m.texcoordstep[0] = sizeof(float[2]);
-	speedscale = cl.time*8.0/128.0;
-	speedscale -= (int)speedscale;
-	speedscale2 = cl.time*16.0/128.0;
-	speedscale2 -= (int)speedscale2;
-	skyspherearrays(vert, tex, tex2, skysphere, speedscale, speedscale2);
+	m.depthdisable = true; // don't modify or read zbuffer
 	m.tex[0] = R_GetTexture(solidskytexture);
-	R_Mesh_Draw(&m);
+	R_Mesh_State(&m);
+
+	GL_Color(r_colorscale, r_colorscale, r_colorscale, 1);
+
+	memcpy(varray_vertex, skysphere_vertex, skysphere_numverts * sizeof(float[4]));
+	memcpy(varray_texcoord[0], skysphere_texcoord, skysphere_numverts * sizeof(float[4]));
+	for (i = 0, t = varray_texcoord[0];i < skysphere_numverts;i++, t += 4)
+	{
+		t[0] += speedscale;
+		t[1] += speedscale;
+	}
+	R_Mesh_Draw(skysphere_numverts, skysphere_numtriangles, skysphere_elements);
 
 	m.blendfunc1 = GL_SRC_ALPHA;
 	m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 	m.tex[0] = R_GetTexture(alphaskytexture);
-	m.texcoords[0] = tex2;
-	R_Mesh_Draw(&m);
+	R_Mesh_State(&m);
+
+	// scroll it again, this makes the lower cloud layer scroll twice as fast (just like quake did)
+	for (i = 0, t = varray_texcoord[0];i < skysphere_numverts;i++, t += 4)
+	{
+		t[0] += speedscale;
+		t[1] += speedscale;
+	}
+	R_Mesh_Draw(skysphere_numverts, skysphere_numtriangles, skysphere_elements);
 }
 
 void R_Sky(void)
 {
+	matrix4x4_t skymatrix;
 	if (skyrendermasked)
 	{
+		Matrix4x4_CreateTranslate(&skymatrix, r_origin[0], r_origin[1], r_origin[2]);
+		R_Mesh_Matrix(&skymatrix);
 		if (skyrendersphere)
+		{
+			// this does not modify depth buffer
 			R_SkySphere();
+		}
 		else if (skyrenderbox)
+		{
+			// this does not modify depth buffer
 			R_SkyBox();
-
-		// clear the zbuffer that was used while rendering the sky
-		R_Mesh_ClearDepth();
+		}
+		/* this will be skyroom someday
+		else
+		{
+			// this modifies the depth buffer so we have to clear it afterward
+			//R_SkyRoom();
+			// clear the depthbuffer that was used while rendering the skyroom
+			//qglClear(GL_DEPTH_BUFFER_BIT);
+		}
+		*/
 	}
 }
 
@@ -376,7 +334,7 @@ void R_InitSky (qbyte *src, int bytesperpixel)
 	qbyte skyupperlayerpixels[128*128*4], skylowerlayerpixels[128*128*4];
 	unsigned trans[128*128], transpix, *rgba;
 
-	strcpy(skyworldname, loadmodel->name);
+	skyavailable_quake = true;
 
 	// flush skytexturepool so we won't build up a leak from uploading textures multiple times
 	R_FreeTexturePool(&skytexturepool);
@@ -400,7 +358,7 @@ void R_InitSky (qbyte *src, int bytesperpixel)
 			for (j=0 ; j<128 ; j++)
 			{
 				p = src[i*256 + j + 128];
-				rgba = &d_8to24table[p];
+				rgba = &palette_complete[p];
 				trans[(i*128) + j] = *rgba;
 				r += ((qbyte *)rgba)[0];
 				g += ((qbyte *)rgba)[1];
@@ -416,7 +374,7 @@ void R_InitSky (qbyte *src, int bytesperpixel)
 
 	memcpy(skyupperlayerpixels, trans, 128*128*4);
 
-	solidskytexture = R_LoadTexture (skytexturepool, "sky_solidtexture", 128, 128, (qbyte *) trans, TEXTYPE_RGBA, TEXF_PRECACHE);
+	solidskytexture = R_LoadTexture2D(skytexturepool, "sky_solidtexture", 128, 128, (qbyte *) trans, TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
 
 	if (bytesperpixel == 4)
 	{
@@ -434,13 +392,49 @@ void R_InitSky (qbyte *src, int bytesperpixel)
 				if (p == 0)
 					trans[(i*128) + j] = transpix;
 				else
-					trans[(i*128) + j] = d_8to24table[p];
+					trans[(i*128) + j] = palette_complete[p];
 			}
 		}
 	}
 
 	memcpy(skylowerlayerpixels, trans, 128*128*4);
 
-	alphaskytexture = R_LoadTexture (skytexturepool, "sky_alphatexture", 128, 128, (qbyte *) trans, TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE);
+	alphaskytexture = R_LoadTexture2D(skytexturepool, "sky_alphatexture", 128, 128, (qbyte *) trans, TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
+}
+
+void R_ResetQuakeSky(void)
+{
+	skyavailable_quake = false;
+}
+
+void R_ResetSkyBox(void)
+{
+	skyboxside[0] = skyboxside[1] = skyboxside[2] = skyboxside[3] = skyboxside[4] = skyboxside[5] = NULL;
+	skyname[0] = 0;
+	skyavailable_box = false;
+}
+
+static void r_sky_start(void)
+{
+	skytexturepool = R_AllocTexturePool();
+	solidskytexture = NULL;
+	alphaskytexture = NULL;
+}
+
+static void r_sky_shutdown(void)
+{
+	R_FreeTexturePool(&skytexturepool);
+	solidskytexture = NULL;
+	alphaskytexture = NULL;
+}
+
+static void r_sky_newmap(void)
+{
 }
 
+void R_Sky_Init(void)
+{
+	Cmd_AddCommand ("loadsky", &LoadSky_f);
+	Cvar_RegisterVariable (&r_sky);
+	R_RegisterModule("R_Sky", r_sky_start, r_sky_shutdown, r_sky_newmap);
+}