removed R_Mesh_Draw_NativeOnly (it was not used)
authorhavoc <havoc@d7cf8633-e32d-0410-b094-e92efae38249>
Fri, 2 Aug 2002 12:11:16 +0000 (12:11 +0000)
committerhavoc <havoc@d7cf8633-e32d-0410-b094-e92efae38249>
Fri, 2 Aug 2002 12:11:16 +0000 (12:11 +0000)
cleaned up modulate detection (overbright decisions)

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@2160 d7cf8633-e32d-0410-b094-e92efae38249

gl_backend.c
gl_backend.h

index 4c1cd30..05e2747 100644 (file)
@@ -1165,12 +1165,13 @@ void R_Mesh_Draw(const rmeshinfo_t *m)
 
        overbright = false;
        scaler = 1;
-       if (m->blendfunc2 == GL_SRC_COLOR)
+       if (m->blendfunc1 == GL_DST_COLOR)
        {
-               if (m->blendfunc1 == GL_DST_COLOR) // 2x modulate with framebuffer
+               // check if it is a 2x modulate with framebuffer
+               if (m->blendfunc2 == GL_SRC_COLOR)
                        scaler *= 0.5f;
        }
-       else
+       else if (m->blendfunc2 != GL_SRC_COLOR)
        {
                if (m->tex[0])
                {
@@ -1251,183 +1252,6 @@ void R_Mesh_Draw(const rmeshinfo_t *m)
                R_Mesh_Render();
 }
 
-void R_Mesh_Draw_NativeOnly(const rmeshinfo_t *m)
-{
-       // these are static because gcc runs out of virtual registers otherwise
-       static int i, j, overbright, *index;
-       static float *in, scaler;
-       static buf_mesh_t *mesh;
-       static buf_vertex_t *vert;
-       static buf_fcolor_t *fcolor;
-       static buf_texcoord_t *texcoord[MAX_TEXTUREUNITS];
-
-       if (!backendactive)
-               Sys_Error("R_Mesh_Draw: called when backend is not active\n");
-
-       if (m->index == NULL
-        || !m->numtriangles
-        || m->vertex == NULL
-        || !m->numverts)
-               Host_Error("R_Mesh_Draw: no triangles or verts\n");
-
-       // ignore meaningless alpha meshs
-       if (!m->depthwrite && m->blendfunc1 == GL_SRC_ALPHA && (m->blendfunc2 == GL_ONE || m->blendfunc2 == GL_ONE_MINUS_SRC_ALPHA))
-       {
-               if (m->color)
-               {
-                       for (i = 0, in = m->color + 3;i < m->numverts;i++, (int)in += m->colorstep)
-                               if (*in >= 0.01f)
-                                       break;
-                       if (i == m->numverts)
-                               return;
-               }
-               else if (m->ca < 0.01f)
-                       return;
-       }
-
-       // LordHavoc: removed this error condition because with floatcolors 0,
-       // the 3DFX driver works with very large meshs
-       // FIXME: we can work around this by falling back on non-array renderer if buffers are too big
-       //if (m->numtriangles > 1024 || m->numverts > 3072)
-       //{
-       //      Con_Printf("R_Mesh_Draw_NativeOnly: mesh too big for 3DFX drivers, rejected\n");
-       //      return;
-       //}
-
-       i = max(m->numtriangles * 3, m->numverts);
-       if (overflowedverts < i)
-               overflowedverts = i;
-
-       if (m->numtriangles > max_meshs || m->numverts > max_verts)
-       {
-               Con_Printf("R_Mesh_Draw_NativeOnly: mesh too big for current gl_mesh_maxtriangles setting, increasing limits\n");
-               return;
-       }
-
-       if (m->transparent)
-       {
-               overflowedtransverts += max(m->numtriangles * 3, m->numverts);
-               if (currenttransmesh >= max_transmeshs || (currenttranstriangle + m->numtriangles) > max_transmeshs || (currenttransvertex + m->numverts) > max_transverts)
-               {
-                       if (!transranout)
-                       {
-                               Con_Printf("R_Mesh_Draw_NativeOnly: ran out of room for transparent meshs\n");
-                               transranout = true;
-                       }
-                       return;
-               }
-
-               c_transmeshs++;
-               c_transtris += m->numtriangles;
-               vert = &buf_transvertex[currenttransvertex];
-               fcolor = &buf_transfcolor[currenttransvertex];
-               for (i = 0;i < backendunits;i++)
-                       texcoord[i] = &buf_transtexcoord[i][currenttransvertex];
-
-               // transmesh is only for storage of transparent meshs until they
-               // are inserted into the main mesh array
-               mesh = &buf_transmesh[currenttransmesh++];
-               mesh->firsttriangle = currenttranstriangle;
-               mesh->firstvert = currenttransvertex;
-               index = &buf_transtri[currenttranstriangle].index[0];
-               currenttranstriangle += m->numtriangles;
-               currenttransvertex += m->numverts;
-       }
-       else
-       {
-               if (currentmesh >= max_meshs || (currenttriangle + m->numtriangles) > max_batch || (currentvertex + m->numverts) > max_verts)
-                       R_Mesh_Render();
-
-               c_meshs++;
-               c_meshtris += m->numtriangles;
-               vert = &buf_vertex[currentvertex];
-               fcolor = &buf_fcolor[currentvertex];
-               for (i = 0;i < backendunits;i++)
-                       texcoord[i] = &buf_texcoord[i][currentvertex];
-
-               // opaque meshs are rendered directly
-               mesh = &buf_mesh[currentmesh++];
-               mesh->firsttriangle = currenttriangle;
-               mesh->firstvert = currentvertex;
-               index = &buf_tri[currenttriangle].index[0];
-               currenttriangle += m->numtriangles;
-               currentvertex += m->numverts;
-       }
-
-       // code shared for transparent and opaque meshs
-       memcpy(index, m->index, sizeof(int[3]) * m->numtriangles);
-       mesh->blendfunc1 = m->blendfunc1;
-       mesh->blendfunc2 = m->blendfunc2;
-       mesh->depthmask = (m->blendfunc2 == GL_ZERO || m->depthwrite);
-       mesh->depthtest = !m->depthdisable;
-       mesh->triangles = m->numtriangles;
-       mesh->verts = m->numverts;
-
-       overbright = false;
-       scaler = 1;
-       if (m->blendfunc2 == GL_SRC_COLOR)
-       {
-               if (m->blendfunc1 == GL_DST_COLOR) // 2x modulate with framebuffer
-                       scaler *= 0.5f;
-       }
-       else
-       {
-               if (m->tex[0])
-               {
-                       overbright = gl_combine.integer;
-                       if (overbright)
-                               scaler *= 0.25f;
-               }
-               scaler *= overbrightscale;
-       }
-
-       j = -1;
-       for (i = 0;i < backendunits;i++)
-       {
-               if ((mesh->textures[i] = m->tex[i]))
-                       j = i;
-               mesh->texturergbscale[i] = m->texrgbscale[i];
-               if (mesh->texturergbscale[i] != 1 && mesh->texturergbscale[i] != 2 && mesh->texturergbscale[i] != 4)
-                       mesh->texturergbscale[i] = 1;
-       }
-       if (overbright && j >= 0)
-               mesh->texturergbscale[j] = 4;
-
-       if (m->vertexstep != sizeof(buf_vertex_t))
-               Host_Error("R_Mesh_Draw_NativeOnly: unsupported vertexstep\n");
-       if (m->colorstep != sizeof(buf_fcolor_t))
-               Host_Error("R_Mesh_Draw_NativeOnly: unsupported colorstep\n");
-       if (m->color == NULL)
-               Host_Error("R_Mesh_Draw_NativeOnly: must provide color array\n");
-       for (j = 0;j < MAX_TEXTUREUNITS && m->tex[j];j++)
-       {
-               if (j >= backendunits)
-                       Sys_Error("R_Mesh_Draw_NativeOnly: texture %i supplied when there are only %i texture units\n", j + 1, backendunits);
-               if (m->texcoordstep[j] != sizeof(buf_texcoord_t))
-                       Host_Error("R_Mesh_Draw_NativeOnly: unsupported texcoordstep\n");
-       }
-
-       memcpy(vert, m->vertex, m->numverts * sizeof(buf_vertex_t));
-       for (j = 0;j < MAX_TEXTUREUNITS && m->tex[j];j++)
-               memcpy(&texcoord[j][0].t[0], m->texcoords[j], m->numverts * sizeof(buf_texcoord_t));
-
-       memcpy(fcolor, m->color, m->numverts * sizeof(buf_fcolor_t));
-
-       // do this as a second step because memcpy preloaded the cache, which we can't easily do
-       if (scaler != 1)
-       {
-               for (i = 0;i < m->numverts;i++)
-               {
-                       fcolor[i].c[0] *= scaler;
-                       fcolor[i].c[1] *= scaler;
-                       fcolor[i].c[2] *= scaler;
-               }
-       }
-
-       if (currenttriangle >= max_batch)
-               R_Mesh_Render();
-}
-
 // allocates space in geometry buffers, and fills in pointers to the buffers in passsed struct
 // (this is used for very high speed rendering, no copying)
 int R_Mesh_Draw_GetBuffer(rmeshbufferinfo_t *m)
@@ -1523,12 +1347,13 @@ int R_Mesh_Draw_GetBuffer(rmeshbufferinfo_t *m)
 
        overbright = false;
        scaler = 1;
-       if (m->blendfunc2 == GL_SRC_COLOR)
+       if (m->blendfunc1 == GL_DST_COLOR)
        {
-               if (m->blendfunc1 == GL_DST_COLOR) // 2x modulate with framebuffer
+               // check if it is a 2x modulate with framebuffer
+               if (m->blendfunc2 == GL_SRC_COLOR)
                        scaler *= 0.5f;
        }
-       else
+       else if (m->blendfunc2 != GL_SRC_COLOR)
        {
                if (m->tex[0])
                {
index 9476312..be9ecf7 100644 (file)
@@ -80,10 +80,6 @@ void R_Mesh_AddTransparent(void);
 // (only valid between R_Mesh_Start and R_Mesh_Finish)
 void R_Mesh_DrawPolygon(rmeshinfo_t *m, int numverts);
 
-// same as normal, except for harsh format restrictions (vertex must be 4 float, color must be 4 float, texcoord must be 2 float, flat color not supported)
-// (only valid between R_Mesh_Start and R_Mesh_Finish)
-void R_Mesh_Draw_NativeOnly(const rmeshinfo_t *m);
-
 // allocates space in geometry buffers, and fills in pointers to the buffers in passsed struct
 // (this is used for very high speed rendering, no copying)
 // (only valid between R_Mesh_Start and R_Mesh_Finish)