]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - model_shared.c
corrected a few LittleLongs to LittleFloat in md3 loading (EEP those were bad)
[xonotic/darkplaces.git] / model_shared.c
index bb0804031b40bb4bd28210d9b9c0247c0ac2f077..d993fe8f880e0e0f787f70017c64891b22834191 100644 (file)
@@ -26,6 +26,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "image.h"
 #include "r_shadow.h"
 
+cvar_t r_mipskins = {CVAR_SAVE, "r_mipskins", "0"};
+
 model_t *loadmodel;
 
 // LordHavoc: increased from 512 to 2048
@@ -148,6 +150,7 @@ void Mod_Init (void)
        Mod_AliasInit();
        Mod_SpriteInit();
 
+       Cvar_RegisterVariable(&r_mipskins);
        Cmd_AddCommand ("modellist", Mod_Print);
        Cmd_AddCommand ("modelprecache", Mod_Precache);
 }
@@ -479,108 +482,81 @@ void Mod_ValidateElements(const int *elements, int numtriangles, int numverts, c
                        Con_Printf("Mod_ValidateElements: out of bounds element detected at %s:%d\n", filename, fileline);
 }
 
-/*
-a note on the cost of executing this function:
-per triangle: 188 (83 42 13 45 4 1)
-assignments: 83 (20 3 3 3 1 4 4 1 3 4 3 4 30)
-adds: 42 (2 2 2 2 3 2 2 27)
-subtracts: 13 (3 3 3 1 3)
-multiplies: 45 (6 3 6 6 3 3 6 6 6)
-rsqrts: 4 (1 1 1 1)
-compares: 1 (1)
-per vertex: 39 (12 6 18 3)
-assignments: 12 (4 4 4)
-adds: 6 (2 2 2)
-multiplies: 18 (6 6 6)
-rsqrts: 3 (1 1 1)
-*/
+void Mod_BuildBumpVectors(const float *v0, const float *v1, const float *v2, const float *tc0, const float *tc1, const float *tc2, float *svector3f, float *tvector3f, float *normal3f)
+{
+       float f;
+       normal3f[0] = (v1[1] - v0[1]) * (v2[2] - v0[2]) - (v1[2] - v0[2]) * (v2[1] - v0[1]);
+       normal3f[1] = (v1[2] - v0[2]) * (v2[0] - v0[0]) - (v1[0] - v0[0]) * (v2[2] - v0[2]);
+       normal3f[2] = (v1[0] - v0[0]) * (v2[1] - v0[1]) - (v1[1] - v0[1]) * (v2[0] - v0[0]);
+       VectorNormalize(normal3f);
+       tvector3f[0] = ((tc1[0] - tc0[0]) * (v2[0] - v0[0]) - (tc2[0] - tc0[0]) * (v1[0] - v0[0]));
+       tvector3f[1] = ((tc1[0] - tc0[0]) * (v2[1] - v0[1]) - (tc2[0] - tc0[0]) * (v1[1] - v0[1]));
+       tvector3f[2] = ((tc1[0] - tc0[0]) * (v2[2] - v0[2]) - (tc2[0] - tc0[0]) * (v1[2] - v0[2]));
+       f = -DotProduct(tvector3f, normal3f);
+       VectorMA(tvector3f, f, normal3f, tvector3f);
+       VectorNormalize(tvector3f);
+       CrossProduct(normal3f, tvector3f, svector3f);
+}
 
+// warning: this is an expensive function!
 void Mod_BuildTextureVectorsAndNormals(int numverts, int numtriangles, const float *vertex3f, const float *texcoord2f, const int *elements, float *svector3f, float *tvector3f, float *normal3f)
 {
-       int i, tnum, voffset;
-       float vert[3][4], vec[3][4], sdir[3], tdir[3], normal[3], f, *v;
+       int i, tnum;
+       float sdir[3], tdir[3], normal[3], *v;
        const int *e;
        // clear the vectors
-       memset(svector3f, 0, numverts * sizeof(float[3]));
-       memset(tvector3f, 0, numverts * sizeof(float[3]));
-       memset(normal3f, 0, numverts * sizeof(float[3]));
+       if (svector3f)
+               memset(svector3f, 0, numverts * sizeof(float[3]));
+       if (tvector3f)
+               memset(tvector3f, 0, numverts * sizeof(float[3]));
+       if (normal3f)
+               memset(normal3f, 0, numverts * sizeof(float[3]));
        // process each vertex of each triangle and accumulate the results
        for (tnum = 0, e = elements;tnum < numtriangles;tnum++, e += 3)
        {
-               // calculate texture matrix for triangle
-               // 20 assignments
-               voffset = e[0];
-               vert[0][0] = vertex3f[voffset*3+0];
-               vert[0][1] = vertex3f[voffset*3+1];
-               vert[0][2] = vertex3f[voffset*3+2];
-               vert[0][3] = texcoord2f[voffset*2];
-               voffset = e[1];
-               vert[1][0] = vertex3f[voffset*3+0];
-               vert[1][1] = vertex3f[voffset*3+1];
-               vert[1][2] = vertex3f[voffset*3+2];
-               vert[1][3] = texcoord2f[voffset*2];
-               voffset = e[2];
-               vert[2][0] = vertex3f[voffset*3+0];
-               vert[2][1] = vertex3f[voffset*3+1];
-               vert[2][2] = vertex3f[voffset*3+2];
-               vert[2][3] = texcoord2f[voffset*2];
-               // 3 assignments, 3 subtracts
-               VectorSubtract(vert[1], vert[0], vec[0]);
-               // 3 assignments, 3 subtracts
-               VectorSubtract(vert[2], vert[0], vec[1]);
-               // 3 assignments, 3 subtracts, 6 multiplies
-               CrossProduct(vec[0], vec[1], normal);
-               // 1 assignment, 2 adds, 3 multiplies, 1 compare
-               if (DotProduct(normal, normal) >= 0.001)
+               Mod_BuildBumpVectors(vertex3f + e[0] * 3, vertex3f + e[1] * 3, vertex3f + e[2] * 3, texcoord2f + e[0] * 2, texcoord2f + e[1] * 2, texcoord2f + e[2] * 2, sdir, tdir, normal);
+               if (svector3f)
                {
-                       // 4 assignments, 1 rsqrt, 2 adds, 6 multiplies
-                       VectorNormalize(normal);
-                       tdir[0] = ((vert[1][3] - vert[0][3]) * (vert[2][0] - vert[0][0]) - (vert[2][3] - vert[0][3]) * (vert[1][0] - vert[0][0]));
-                       tdir[1] = ((vert[1][3] - vert[0][3]) * (vert[2][1] - vert[0][1]) - (vert[2][3] - vert[0][3]) * (vert[1][1] - vert[0][1]));
-                       tdir[2] = ((vert[1][3] - vert[0][3]) * (vert[2][2] - vert[0][2]) - (vert[2][3] - vert[0][3]) * (vert[1][2] - vert[0][2]));
-                       // 4 assignments, 1 rsqrt, 2 adds, 6 multiplies
-                       VectorNormalize(tdir);
-                       // 1 assignments, 1 negates, 2 adds, 3 multiplies
-                       f = -DotProduct(tdir, normal);
-                       // 3 assignments, 3 adds, 3 multiplies
-                       VectorMA(tdir, f, normal, tdir);
-                       // 4 assignments, 1 rsqrt, 2 adds, 6 multiplies
-                       VectorNormalize(tdir);
-                       // 3 assignments, 3 subtracts, 6 multiplies
-                       CrossProduct(tdir, normal, sdir);
-                       // this is probably not necessary
-                       // 4 assignments, 1 rsqrt, 2 adds, 6 multiplies
-                       VectorNormalize(sdir);
-                       //
-                       VectorNegate(sdir, sdir);
-                       // accumulate matrix onto verts used by triangle
-                       // 30 assignments, 27 adds
                        for (i = 0;i < 3;i++)
                        {
-                               voffset = e[i];
-                               svector3f[voffset*3  ] += sdir[0];
-                               svector3f[voffset*3+1] += sdir[1];
-                               svector3f[voffset*3+2] += sdir[2];
-                               tvector3f[voffset*3  ] += tdir[0];
-                               tvector3f[voffset*3+1] += tdir[1];
-                               tvector3f[voffset*3+2] += tdir[2];
-                               normal3f[voffset*3  ] += normal[0];
-                               normal3f[voffset*3+1] += normal[1];
-                               normal3f[voffset*3+2] += normal[2];
+                               svector3f[e[i]*3  ] += sdir[0];
+                               svector3f[e[i]*3+1] += sdir[1];
+                               svector3f[e[i]*3+2] += sdir[2];
+                       }
+               }
+               if (tvector3f)
+               {
+                       for (i = 0;i < 3;i++)
+                       {
+                               tvector3f[e[i]*3  ] += tdir[0];
+                               tvector3f[e[i]*3+1] += tdir[1];
+                               tvector3f[e[i]*3+2] += tdir[2];
+                       }
+               }
+               if (normal3f)
+               {
+                       for (i = 0;i < 3;i++)
+                       {
+                               normal3f[e[i]*3  ] += normal[0];
+                               normal3f[e[i]*3+1] += normal[1];
+                               normal3f[e[i]*3+2] += normal[2];
                        }
                }
        }
        // now we could divide the vectors by the number of averaged values on
        // each vertex...  but instead normalize them
-       for (i = 0, v = svector3f;i < numverts;i++, v += 3)
-               // 4 assignments, 1 rsqrt, 2 adds, 6 multiplies
-               VectorNormalize(v);
-       for (i = 0, v = tvector3f;i < numverts;i++, v += 3)
-               // 4 assignments, 1 rsqrt, 2 adds, 6 multiplies
-               VectorNormalize(v);
-       for (i = 0, v = normal3f;i < numverts;i++, v += 3)
-               // 4 assignments, 1 rsqrt, 2 adds, 6 multiplies
-               VectorNormalize(v);
+       // 4 assignments, 1 divide, 1 sqrt, 2 adds, 6 multiplies
+       if (svector3f)
+               for (i = 0, v = svector3f;i < numverts;i++, v += 3)
+                       VectorNormalize(v);
+       // 4 assignments, 1 divide, 1 sqrt, 2 adds, 6 multiplies
+       if (tvector3f)
+               for (i = 0, v = tvector3f;i < numverts;i++, v += 3)
+                       VectorNormalize(v);
+       // 4 assignments, 1 divide, 1 sqrt, 2 adds, 6 multiplies
+       if (normal3f)
+               for (i = 0, v = normal3f;i < numverts;i++, v += 3)
+                       VectorNormalize(v);
 }
 
 shadowmesh_t *Mod_ShadowMesh_Alloc(mempool_t *mempool, int maxverts)
@@ -802,7 +778,7 @@ int Mod_LoadSkinFrame(skinframe_t *skinframe, char *basename, int textureflags,
                skinframe->detail = mod_shared_detailtextures[(detailtexturecycle++) % NUM_DETAILTEXTURES];
        skinframe->base = R_LoadTexture2D (loadmodel->texturepool, basename, s.basepixels_width, s.basepixels_height, s.basepixels, TEXTYPE_RGBA, textureflags, NULL);
        if (s.nmappixels != NULL)
-               skinframe->nmap = R_LoadTexture2D (loadmodel->texturepool, va("%s_nmap", basename), s.basepixels_width, s.basepixels_height, s.nmappixels, TEXTYPE_RGBA, textureflags, NULL);
+               skinframe->nmap = R_LoadTexture2D (loadmodel->texturepool, va("%s_nmap", basename), s.nmappixels_width, s.nmappixels_height, s.nmappixels, TEXTYPE_RGBA, textureflags, NULL);
        if (s.glosspixels != NULL)
                skinframe->gloss = R_LoadTexture2D (loadmodel->texturepool, va("%s_gloss", basename), s.glosspixels_width, s.glosspixels_height, s.glosspixels, TEXTYPE_RGBA, textureflags, NULL);
        if (s.glowpixels != NULL && loadglowtexture)
@@ -862,3 +838,204 @@ int Mod_LoadSkinFrame_Internal(skinframe_t *skinframe, char *basename, int textu
        }
        return true;
 }
+
+void Mod_GetTerrainVertex3fTexCoord2fFromRGBA(const qbyte *imagepixels, int imagewidth, int imageheight, int ix, int iy, float *vertex3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
+{
+       float v[3], tc[3];
+       v[0] = ix;
+       v[1] = iy;
+       if (ix >= 0 && iy >= 0 && ix < imagewidth && iy < imageheight)
+               v[2] = (imagepixels[((iy*imagewidth)+ix)*4+0] + imagepixels[((iy*imagewidth)+ix)*4+1] + imagepixels[((iy*imagewidth)+ix)*4+2]) * (1.0f / 765.0f);
+       else
+               v[2] = 0;
+       Matrix4x4_Transform(pixelstepmatrix, v, vertex3f);
+       Matrix4x4_Transform(pixeltexturestepmatrix, v, tc);
+       texcoord2f[0] = tc[0];
+       texcoord2f[1] = tc[1];
+}
+
+void Mod_GetTerrainVertexFromRGBA(const qbyte *imagepixels, int imagewidth, int imageheight, int ix, int iy, float *vertex3f, float *svector3f, float *tvector3f, float *normal3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
+{
+       float vup[3], vdown[3], vleft[3], vright[3];
+       float tcup[3], tcdown[3], tcleft[3], tcright[3];
+       float sv[3], tv[3], nl[3];
+       Mod_GetTerrainVertex3fTexCoord2fFromRGBA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, pixelstepmatrix, pixeltexturestepmatrix);
+       Mod_GetTerrainVertex3fTexCoord2fFromRGBA(imagepixels, imagewidth, imageheight, ix, iy - 1, vup, tcup, pixelstepmatrix, pixeltexturestepmatrix);
+       Mod_GetTerrainVertex3fTexCoord2fFromRGBA(imagepixels, imagewidth, imageheight, ix, iy + 1, vdown, tcdown, pixelstepmatrix, pixeltexturestepmatrix);
+       Mod_GetTerrainVertex3fTexCoord2fFromRGBA(imagepixels, imagewidth, imageheight, ix - 1, iy, vleft, tcleft, pixelstepmatrix, pixeltexturestepmatrix);
+       Mod_GetTerrainVertex3fTexCoord2fFromRGBA(imagepixels, imagewidth, imageheight, ix + 1, iy, vright, tcright, pixelstepmatrix, pixeltexturestepmatrix);
+       Mod_BuildBumpVectors(vertex3f, vup, vright, texcoord2f, tcup, tcright, svector3f, tvector3f, normal3f);
+       Mod_BuildBumpVectors(vertex3f, vright, vdown, texcoord2f, tcright, tcdown, sv, tv, nl);
+       VectorAdd(svector3f, sv, svector3f);
+       VectorAdd(tvector3f, tv, tvector3f);
+       VectorAdd(normal3f, nl, normal3f);
+       Mod_BuildBumpVectors(vertex3f, vdown, vleft, texcoord2f, tcdown, tcleft, sv, tv, nl);
+       VectorAdd(svector3f, sv, svector3f);
+       VectorAdd(tvector3f, tv, tvector3f);
+       VectorAdd(normal3f, nl, normal3f);
+       Mod_BuildBumpVectors(vertex3f, vleft, vup, texcoord2f, tcleft, tcup, sv, tv, nl);
+       VectorAdd(svector3f, sv, svector3f);
+       VectorAdd(tvector3f, tv, tvector3f);
+       VectorAdd(normal3f, nl, normal3f);
+}
+
+void Mod_ConstructTerrainPatchFromRGBA(const qbyte *imagepixels, int imagewidth, int imageheight, int x1, int y1, int width, int height, int *element3i, int *neighbor3i, float *vertex3f, float *svector3f, float *tvector3f, float *normal3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
+{
+       int x, y, ix, iy, *e;
+       e = element3i;
+       for (y = 0;y < height;y++)
+       {
+               for (x = 0;x < width;x++)
+               {
+                       e[0] = (y + 1) * (width + 1) + (x + 0);
+                       e[1] = (y + 0) * (width + 1) + (x + 0);
+                       e[2] = (y + 1) * (width + 1) + (x + 1);
+                       e[3] = (y + 0) * (width + 1) + (x + 0);
+                       e[4] = (y + 0) * (width + 1) + (x + 1);
+                       e[5] = (y + 1) * (width + 1) + (x + 1);
+                       e += 6;
+               }
+       }
+       Mod_BuildTriangleNeighbors(neighbor3i, element3i, width*height*2);
+       for (y = 0, iy = y1;y < height + 1;y++, iy++)
+               for (x = 0, ix = x1;x < width + 1;x++, ix++, vertex3f += 3, texcoord2f += 2, svector3f += 3, tvector3f += 3, normal3f += 3)
+                       Mod_GetTerrainVertexFromRGBA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, svector3f, tvector3f, normal3f, pixelstepmatrix, pixeltexturestepmatrix);
+}
+
+skinfile_t *Mod_LoadSkinFiles(void)
+{
+       int i, words, numtags, line, tagsetsused = false, wordsoverflow;
+       char *text;
+       const char *data;
+       skinfile_t *skinfile, *first = NULL;
+       skinfileitem_t *skinfileitem;
+       char word[10][MAX_QPATH];
+       overridetagnameset_t tagsets[MAX_SKINS];
+       overridetagname_t tags[256];
+
+/*
+sample file:
+U_bodyBox,models/players/Legoman/BikerA2.tga
+U_RArm,models/players/Legoman/BikerA1.tga
+U_LArm,models/players/Legoman/BikerA1.tga
+U_armor,common/nodraw
+U_sword,common/nodraw
+U_shield,common/nodraw
+U_homb,common/nodraw
+U_backpack,common/nodraw
+U_colcha,common/nodraw
+tag_head,
+tag_weapon,
+tag_torso,
+*/
+       memset(tagsets, 0, sizeof(tagsets));
+       memset(word, 0, sizeof(word));
+       for (i = 0;i < MAX_SKINS && (data = text = FS_LoadFile(va("%s_%i.skin", loadmodel->name, i), true));i++)
+       {
+               numtags = 0;
+               skinfile = Mem_Alloc(tempmempool, sizeof(skinfile_t));
+               skinfile->next = first;
+               first = skinfile;
+               for(line = 0;;line++)
+               {
+                       // parse line
+                       if (!COM_ParseToken(&data, true))
+                               break;
+                       if (!strcmp(com_token, "\n"))
+                               continue;
+                       words = 0;
+                       wordsoverflow = false;
+                       do
+                       {
+                               if (words < 10)
+                                       strncpy(word[words++], com_token, MAX_QPATH - 1);
+                               else
+                                       wordsoverflow = true;
+                       }
+                       while (COM_ParseToken(&data, true) && strcmp(com_token, "\n"));
+                       if (wordsoverflow)
+                       {
+                               Con_Printf("Mod_LoadSkinFiles: parsing error in file \"%s_%i.skin\" on line #%i: line with too many statements, skipping\n", loadmodel->name, i, line);
+                               continue;
+                       }
+                       // words is always >= 1
+                       if (!strcmp(word[0], "replace"))
+                       {
+                               if (words == 3)
+                               {
+                                       Con_DPrintf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[1], word[2]);
+                                       skinfileitem = Mem_Alloc(tempmempool, sizeof(skinfileitem_t));
+                                       skinfileitem->next = skinfile->items;
+                                       skinfile->items = skinfileitem;
+                                       strncpy(skinfileitem->name, word[1], sizeof(skinfileitem->name) - 1);
+                                       strncpy(skinfileitem->replacement, word[2], sizeof(skinfileitem->replacement) - 1);
+                               }
+                               else
+                                       Con_Printf("Mod_LoadSkinFiles: parsing error in file \"%s_%i.skin\" on line #%i: wrong number of parameters to command \"%s\", see documentation in DP_GFX_SKINFILES extension in dpextensions.qc\n", loadmodel->name, i, line, word[0]);
+                       }
+                       else if (words == 2 && !strcmp(word[1], ","))
+                       {
+                               // tag name, like "tag_weapon,"
+                               Con_DPrintf("Mod_LoadSkinFiles: parsed tag #%i \"%s\"\n", numtags, word[0]);
+                               memset(tags + numtags, 0, sizeof(tags[numtags]));
+                               strncpy(tags[numtags].name, word[0], sizeof(tags[numtags].name) - 1);
+                               numtags++;
+                       }
+                       else if (words == 3 && !strcmp(word[1], ","))
+                       {
+                               // mesh shader name, like "U_RArm,models/players/Legoman/BikerA1.tga"
+                               Con_DPrintf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[0], word[2]);
+                               skinfileitem = Mem_Alloc(tempmempool, sizeof(skinfileitem_t));
+                               skinfileitem->next = skinfile->items;
+                               skinfile->items = skinfileitem;
+                               strncpy(skinfileitem->name, word[0], sizeof(skinfileitem->name) - 1);
+                               strncpy(skinfileitem->replacement, word[2], sizeof(skinfileitem->replacement) - 1);
+                       }
+                       else
+                               Con_Printf("Mod_LoadSkinFiles: parsing error in file \"%s_%i.skin\" on line #%i: does not look like tag or mesh specification, or replace command, see documentation in DP_GFX_SKINFILES extension in dpextensions.qc\n", loadmodel->name, i, line);
+               }
+               Mem_Free(text);
+
+               if (numtags)
+               {
+                       overridetagnameset_t *t;
+                       t = tagsets + i;
+                       t->num_overridetagnames = numtags;
+                       t->data_overridetagnames = Mem_Alloc(loadmodel->mempool, t->num_overridetagnames * sizeof(overridetagname_t));
+                       memcpy(t->data_overridetagnames, tags, t->num_overridetagnames * sizeof(overridetagname_t));
+                       tagsetsused = true;
+               }
+       }
+       if (tagsetsused)
+       {
+               loadmodel->data_overridetagnamesforskin = Mem_Alloc(loadmodel->mempool, i * sizeof(overridetagnameset_t));
+               memcpy(loadmodel->data_overridetagnamesforskin, tagsets, i * sizeof(overridetagnameset_t));
+       }
+       loadmodel->numskins = i;
+       return first;
+}
+
+void Mod_FreeSkinFiles(skinfile_t *skinfile)
+{
+       skinfile_t *next;
+       skinfileitem_t *skinfileitem, *nextitem;
+       for (;skinfile;skinfile = next)
+       {
+               next = skinfile->next;
+               for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = nextitem)
+               {
+                       nextitem = skinfileitem->next;
+                       Mem_Free(skinfileitem);
+               }
+               Mem_Free(skinfile);
+       }
+}
+
+int Mod_CountSkinFiles(skinfile_t *skinfile)
+{
+       int i;
+       for (i = 0;skinfile;skinfile = skinfile->next, i++);
+       return i;
+}
+
+