static cvar_t gl_mesh_batchtriangles = {0, "gl_mesh_batchtriangles", "1024"};
static cvar_t gl_mesh_merge = {0, "gl_mesh_merge", "1"};
static cvar_t gl_mesh_floatcolors = {0, "gl_mesh_floatcolors", "0"};
-static cvar_t gl_mesh_dupetransverts = {0, "gl_mesh_dupetransverts", "0"};
-static cvar_t gl_mesh_sorttransbymesh = {0, "gl_mesh_sorttransbymesh", "1"};
typedef struct buf_mesh_s
{
static int currenttransmesh, currenttransvertex, currenttranstriangle;
static buf_mesh_t *buf_transmesh;
-static buf_transtri_t *buf_transtri;
-static buf_transtri_t **buf_transtri_list;
+static buf_transtri_t *buf_sorttranstri;
+static buf_transtri_t **buf_sorttranstri_list;
+static buf_tri_t *buf_transtri;
static buf_vertex_t *buf_transvertex;
static buf_fcolor_t *buf_transfcolor;
static buf_texcoord_t *buf_transtexcoord[MAX_TEXTUREUNITS];
BACKENDALLOC(buf_bcolor, max_verts, buf_bcolor_t)
BACKENDALLOC(buf_transmesh, max_meshs, buf_mesh_t)
- BACKENDALLOC(buf_transtri, max_meshs, buf_transtri_t)
- BACKENDALLOC(buf_transtri_list, TRANSDEPTHRES, buf_transtri_t *)
+ BACKENDALLOC(buf_sorttranstri, max_meshs, buf_transtri_t)
+ BACKENDALLOC(buf_sorttranstri_list, TRANSDEPTHRES, buf_transtri_t *)
+ BACKENDALLOC(buf_transtri, max_meshs, buf_tri_t)
BACKENDALLOC(buf_transvertex, max_verts, buf_vertex_t)
BACKENDALLOC(buf_transfcolor, max_verts, buf_fcolor_t)
static void gl_backend_shutdown(void)
{
- //int i;
- /*
-#define BACKENDFREE(var)\
- if (var)\
- {\
- Mem_Free(var);\
- var = NULL;\
- }
- */
- /*
-#define BACKENDFREE(var) var = NULL;
-
- BACKENDFREE(buf_mesh)
- BACKENDFREE(buf_tri)
- BACKENDFREE(buf_vertex)
- BACKENDFREE(buf_fcolor)
- BACKENDFREE(buf_bcolor)
-
- BACKENDFREE(buf_transmesh)
- BACKENDFREE(buf_transtri)
- BACKENDFREE(buf_transtri_list)
- BACKENDFREE(buf_transvertex)
- BACKENDFREE(buf_transfcolor)
-
- for (i = 0;i < MAX_TEXTUREUNITS;i++)
- {
- BACKENDFREE(buf_texcoord[i])
- BACKENDFREE(buf_transtexcoord[i])
- }
- */
-
if (resizingbuffers)
Mem_EmptyPool(gl_backend_mempool);
else
Cvar_RegisterVariable(&gl_mesh_batchtriangles);
Cvar_RegisterVariable(&gl_mesh_merge);
Cvar_RegisterVariable(&gl_mesh_floatcolors);
- Cvar_RegisterVariable(&gl_mesh_dupetransverts);
- Cvar_RegisterVariable(&gl_mesh_sorttransbymesh);
R_RegisterModule("GL_Backend", gl_backend_start, gl_backend_shutdown, gl_backend_newmap);
gl_backend_bufferchanges(true);
for (i = 0;i < 256;i++)
int i, k, blendfunc1, blendfunc2, blend, depthmask, depthtest, unit = 0, clientunit = 0, firsttriangle, triangles, firstvert, lastvert, texture[MAX_TEXTUREUNITS];
float farclip, texturergbscale[MAX_TEXTUREUNITS];
buf_mesh_t *mesh;
+ unsigned int *index;
// float to byte color conversion
int *icolor;
float *fcolor;
}
}
+ index = (unsigned int *)&buf_tri[firsttriangle].index[0];
+ for (i = 0;i < triangles * 3;i++)
+ index[i] += firstvert;
+
#ifdef WIN32
// FIXME: dynamic link to GL so we can get DrawRangeElements on WIN32
- glDrawElements(GL_TRIANGLES, triangles * 3, GL_UNSIGNED_INT, (unsigned int *)&buf_tri[firsttriangle]);
+ glDrawElements(GL_TRIANGLES, triangles * 3, GL_UNSIGNED_INT, index);
#else
- glDrawRangeElements(GL_TRIANGLES, firstvert, lastvert + 1, triangles * 3, GL_UNSIGNED_INT, (unsigned int *)&buf_tri[firsttriangle]);
+ glDrawRangeElements(GL_TRIANGLES, firstvert, lastvert + 1, triangles * 3, GL_UNSIGNED_INT, index);
#endif
CHECKGLERROR
}
void R_Mesh_AddTransparent(void)
{
- if (gl_mesh_sorttransbymesh.integer)
- {
- int i, j, k;
- float viewdistcompare, centerscaler, dist1, dist2, dist3, center, maxdist;
- buf_vertex_t *vert1, *vert2, *vert3;
- buf_transtri_t *tri;
- buf_mesh_t *mesh, *transmesh;
-
- // process and add transparent mesh triangles
- if (!currenttranstriangle)
- return;
-
- // map farclip to 0-4095 list range
- centerscaler = (TRANSDEPTHRES / r_farclip) * (1.0f / 3.0f);
- viewdistcompare = viewdist + 4.0f;
+ int i, j, k, *index;
+ float viewdistcompare, centerscaler, dist1, dist2, dist3, center, maxdist;
+ buf_vertex_t *vert1, *vert2, *vert3;
+ buf_transtri_t *tri;
+ buf_mesh_t *mesh, *transmesh;
- memset(buf_transtri_list, 0, TRANSDEPTHRES * sizeof(buf_transtri_t *));
+ if (!currenttransmesh)
+ return;
- k = 0;
- for (j = 0;j < currenttranstriangle;j++)
+ // convert index data to transtris for sorting
+ for (j = 0;j < currenttransmesh;j++)
+ {
+ mesh = buf_transmesh + j;
+ k = mesh->firsttriangle;
+ index = &buf_transtri[k].index[0];
+ for (i = 0;i < mesh->triangles;i++)
{
- tri = &buf_transtri[j];
-
- vert1 = &buf_transvertex[tri->index[0]];
- vert2 = &buf_transvertex[tri->index[1]];
- vert3 = &buf_transvertex[tri->index[2]];
-
- dist1 = DotProduct(vert1->v, vpn);
- dist2 = DotProduct(vert2->v, vpn);
- dist3 = DotProduct(vert3->v, vpn);
-
- maxdist = max(dist1, max(dist2, dist3));
- if (maxdist < viewdistcompare)
- continue;
-
- center = (dist1 + dist2 + dist3) * centerscaler - viewdist;
- #if SLOWMATH
- i = (int) center;
- i = bound(0, i, (TRANSDEPTHRES - 1));
- #else
- if (center < 0.0f)
- center = 0.0f;
- center += 8388608.0f;
- i = *((long *)¢er) & 0x7FFFFF;
- i = min(i, (TRANSDEPTHRES - 1));
- #endif
- tri->next = buf_transtri_list[i];
- buf_transtri_list[i] = tri;
- k++;
+ tri = &buf_sorttranstri[k++];
+ tri->mesh = mesh;
+ tri->index[0] = *index++;
+ tri->index[1] = *index++;
+ tri->index[2] = *index++;
}
+ }
- #ifndef TRANSBATCH
- if (currentmesh + k > max_meshs || currenttriangle + k > max_batch || currentvertex + currenttransvertex > max_verts)
- R_Mesh_Render();
-
- // note: can't batch these because they can be rendered in any order
- // there can never be more transparent triangles than fit in main buffers
- memcpy(&buf_vertex[currentvertex], &buf_transvertex[0], currenttransvertex * sizeof(buf_vertex_t));
- memcpy(&buf_fcolor[currentvertex], &buf_transfcolor[0], currenttransvertex * sizeof(buf_fcolor_t));
- for (i = 0;i < backendunits;i++)
- memcpy(&buf_texcoord[i][currentvertex], &buf_transtexcoord[i][0], currenttransvertex * sizeof(buf_texcoord_t));
- #endif
-
- for (i = 0;i < currenttransmesh;i++)
- {
- buf_transmesh[i].transchain = NULL;
- //buf_transmesh[i].transchainpointer = &buf_transmesh[i].transchain;
- buf_transmesh[i].triangles = 0;
- }
- transmesh = NULL;
- for (j = 0;j < TRANSDEPTHRES;j++)
- {
- if ((tri = buf_transtri_list[j]))
- {
- for (;tri;tri = tri->next)
- {
- if (!tri->mesh->transchain)
- {
- tri->mesh->chain = transmesh;
- transmesh = tri->mesh;
- }
- tri->meshsortchain = tri->mesh->transchain;
- tri->mesh->transchain = tri;
- /*
- *tri->mesh->transchainpointer = tri;
- tri->meshsortchain = NULL;
- tri->mesh->transchainpointer = &tri->meshsortchain;
- */
- tri->mesh->triangles++;
- }
- }
- }
+ // map farclip to 0-4095 list range
+ centerscaler = (TRANSDEPTHRES / r_farclip) * (1.0f / 3.0f);
+ viewdistcompare = viewdist + 4.0f;
- #if TRANSBATCH
- for (;transmesh;transmesh = transmesh->chain)
- {
- int meshvertexadjust;
- int numverts = transmesh->lastvert - transmesh->firstvert + 1;
- if (currentmesh >= max_meshs || currenttriangle + transmesh->triangles > max_batch || currentvertex + numverts > max_verts)
- R_Mesh_Render();
-
- memcpy(&buf_vertex[currentvertex], &buf_transvertex[transmesh->firstvert], numverts * sizeof(buf_vertex_t));
- memcpy(&buf_fcolor[currentvertex], &buf_transfcolor[transmesh->firstvert], numverts * sizeof(buf_fcolor_t));
- for (i = 0;i < backendunits && transmesh->textures[i];i++)
- memcpy(&buf_texcoord[i][currentvertex], &buf_transtexcoord[i][transmesh->firstvert], numverts * sizeof(buf_texcoord_t));
-
- mesh = &buf_mesh[currentmesh++];
- *mesh = *transmesh; // copy mesh properties
- mesh->firstvert = currentvertex;
- mesh->lastvert = currentvertex + numverts - 1;
- currentvertex += numverts;
- meshvertexadjust = mesh->firstvert - transmesh->firstvert;
- mesh->firsttriangle = currenttriangle;
- for (tri = transmesh->transchain;tri;tri = tri->meshsortchain)
- {
- buf_tri[currenttriangle].index[0] = tri->index[0] + meshvertexadjust;
- buf_tri[currenttriangle].index[1] = tri->index[1] + meshvertexadjust;
- buf_tri[currenttriangle].index[2] = tri->index[2] + meshvertexadjust;
- /*
- if (tri->mesh != transmesh)
- Sys_Error("!?!");
- if ((unsigned int) buf_tri[currenttriangle].index[0] < (unsigned int) mesh->firstvert
- || (unsigned int) buf_tri[currenttriangle].index[0] > (unsigned int) mesh->lastvert
- || (unsigned int) buf_tri[currenttriangle].index[1] < (unsigned int) mesh->firstvert
- || (unsigned int) buf_tri[currenttriangle].index[1] > (unsigned int) mesh->lastvert
- || (unsigned int) buf_tri[currenttriangle].index[2] < (unsigned int) mesh->firstvert
- || (unsigned int) buf_tri[currenttriangle].index[2] > (unsigned int) mesh->lastvert)
- Sys_Error("!?");
- */
- currenttriangle++;
- }
- /*
- if (mesh->triangles != currenttriangle - mesh->firsttriangle)
- Sys_Error("!");
- */
- }
- #else
- for (;transmesh;transmesh = transmesh->chain)
- {
- mesh = &buf_mesh[currentmesh++];
- *mesh = *transmesh; // copy mesh properties
- mesh->firstvert += currentvertex;
- mesh->lastvert += currentvertex;
- mesh->firsttriangle = currenttriangle;
- for (tri = transmesh->transchain;tri;tri = tri->meshsortchain)
- {
- buf_tri[currenttriangle].index[0] = tri->index[0] + currentvertex;
- buf_tri[currenttriangle].index[1] = tri->index[1] + currentvertex;
- buf_tri[currenttriangle].index[2] = tri->index[2] + currentvertex;
- /*
- if (tri->mesh != transmesh)
- Sys_Error("!?!");
- if ((unsigned int) buf_tri[currenttriangle].index[0] < (unsigned int) mesh->firstvert
- || (unsigned int) buf_tri[currenttriangle].index[0] > (unsigned int) mesh->lastvert
- || (unsigned int) buf_tri[currenttriangle].index[1] < (unsigned int) mesh->firstvert
- || (unsigned int) buf_tri[currenttriangle].index[1] > (unsigned int) mesh->lastvert
- || (unsigned int) buf_tri[currenttriangle].index[2] < (unsigned int) mesh->firstvert
- || (unsigned int) buf_tri[currenttriangle].index[2] > (unsigned int) mesh->lastvert)
- Sys_Error("!?");
- */
- currenttriangle++;
- }
- /*
- if (mesh->triangles != currenttriangle - mesh->firsttriangle)
- Sys_Error("!");
- */
- }
- currentvertex += currenttransvertex;
- #endif
+ memset(buf_sorttranstri_list, 0, TRANSDEPTHRES * sizeof(buf_transtri_t *));
- currenttransmesh = 0;
- currenttranstriangle = 0;
- currenttransvertex = 0;
- }
- else if (gl_mesh_dupetransverts.integer)
+ k = 0;
+ for (j = 0;j < currenttranstriangle;j++)
{
- int i, j, k, index;
- float viewdistcompare, centerscaler, dist1, dist2, dist3, center, maxdist;
- buf_vertex_t *vert1, *vert2, *vert3;
- buf_transtri_t *tri;
- buf_mesh_t *mesh;
-
- // process and add transparent mesh triangles
- if (!currenttranstriangle)
- return;
+ tri = &buf_sorttranstri[j];
+ i = tri->mesh->firstvert;
- // map farclip to 0-4095 list range
- centerscaler = (TRANSDEPTHRES / r_farclip) * (1.0f / 3.0f);
- viewdistcompare = viewdist + 4.0f;
+ vert1 = &buf_transvertex[tri->index[0] + i];
+ vert2 = &buf_transvertex[tri->index[1] + i];
+ vert3 = &buf_transvertex[tri->index[2] + i];
- memset(buf_transtri_list, 0, TRANSDEPTHRES * sizeof(buf_transtri_t *));
+ dist1 = DotProduct(vert1->v, vpn);
+ dist2 = DotProduct(vert2->v, vpn);
+ dist3 = DotProduct(vert3->v, vpn);
- // process in reverse because transtri_list adding code is in reverse as well
- k = 0;
- for (j = currenttranstriangle - 1;j >= 0;j--)
- {
- tri = &buf_transtri[j];
-
- vert1 = &buf_transvertex[tri->index[0]];
- vert2 = &buf_transvertex[tri->index[1]];
- vert3 = &buf_transvertex[tri->index[2]];
-
- dist1 = DotProduct(vert1->v, vpn);
- dist2 = DotProduct(vert2->v, vpn);
- dist3 = DotProduct(vert3->v, vpn);
-
- maxdist = max(dist1, max(dist2, dist3));
- if (maxdist < viewdistcompare)
- continue;
-
- center = (dist1 + dist2 + dist3) * centerscaler - viewdist;
- #if SLOWMATH
- i = (int) center;
- i = bound(0, i, (TRANSDEPTHRES - 1));
- #else
- if (center < 0.0f)
- center = 0.0f;
- center += 8388608.0f;
- i = *((long *)¢er) & 0x7FFFFF;
- i = min(i, (TRANSDEPTHRES - 1));
- #endif
- tri->next = buf_transtri_list[i];
- buf_transtri_list[i] = tri;
- k++;
- }
+ maxdist = max(dist1, max(dist2, dist3));
+ if (maxdist < viewdistcompare)
+ continue;
- if (currentmesh + k > max_meshs || currenttriangle + k > max_batch || currentvertex + k * 3 > max_verts)
- R_Mesh_Render();
+ center = (dist1 + dist2 + dist3) * centerscaler - viewdist;
+#if SLOWMATH
+ i = (int) center;
+ i = bound(0, i, (TRANSDEPTHRES - 1));
+#else
+ if (center < 0.0f)
+ center = 0.0f;
+ center += 8388608.0f;
+ i = *((long *)¢er) & 0x7FFFFF;
+ i = min(i, (TRANSDEPTHRES - 1));
+#endif
+ tri->next = buf_sorttranstri_list[i];
+ buf_sorttranstri_list[i] = tri;
+ k++;
+ }
- currenttransmesh = 0;
- currenttranstriangle = 0;
- currenttransvertex = 0;
+ //if (currentmesh + k > max_meshs || currenttriangle + k > max_batch || currentvertex + currenttransvertex > max_verts)
+ // R_Mesh_Render();
- // note: can't batch these because they can be rendered in any order
- // there can never be more transparent triangles than fit in main buffers
- for (j = TRANSDEPTHRES - 1;j >= 0;j--)
+ for (i = 0;i < currenttransmesh;i++)
+ buf_transmesh[i].transchain = NULL;
+ transmesh = NULL;
+ for (j = 0;j < TRANSDEPTHRES;j++)
+ {
+ if ((tri = buf_sorttranstri_list[j]))
{
- if ((tri = buf_transtri_list[j]))
+ for (;tri;tri = tri->next)
{
- while(tri)
+ if (!tri->mesh->transchain)
{
- mesh = &buf_mesh[currentmesh++];
- *mesh = *tri->mesh; // copy mesh properties
- mesh->firstvert = currentvertex;
- mesh->lastvert = currentvertex + 2;
- mesh->firsttriangle = currenttriangle;
- mesh->triangles = 1;
- for (k = 0;k < 3;k++)
- {
- index = tri->index[k];
- buf_tri[currenttriangle].index[k] = currentvertex;
- memcpy(buf_vertex[currentvertex].v, buf_transvertex[index].v, sizeof(buf_vertex_t));
- memcpy(buf_fcolor[currentvertex].c, buf_transfcolor[index].c, sizeof(buf_fcolor_t));
- for (i = 0;i < backendunits && tri->mesh->textures[i];i++)
- memcpy(buf_texcoord[i][currentvertex].t, buf_transtexcoord[i][index].t, sizeof(buf_texcoord_t));
- currentvertex++;
- }
- currenttriangle++;
- tri = tri->next;
+ tri->mesh->chain = transmesh;
+ transmesh = tri->mesh;
}
+ tri->meshsortchain = tri->mesh->transchain;
+ tri->mesh->transchain = tri;
}
}
}
- else
- {
- int i, j, k;
- float viewdistcompare, centerscaler, dist1, dist2, dist3, center, maxdist;
- buf_vertex_t *vert1, *vert2, *vert3;
- buf_transtri_t *tri;
- buf_mesh_t *mesh;
-
- // process and add transparent mesh triangles
- if (!currenttranstriangle)
- return;
-
- // map farclip to 0-4095 list range
- centerscaler = (TRANSDEPTHRES / r_farclip) * (1.0f / 3.0f);
- viewdistcompare = viewdist + 4.0f;
-
- memset(buf_transtri_list, 0, TRANSDEPTHRES * sizeof(buf_transtri_t *));
- // process in reverse because transtri_list adding code is in reverse as well
- k = 0;
- for (j = currenttranstriangle - 1;j >= 0;j--)
- {
- tri = &buf_transtri[j];
-
- vert1 = &buf_transvertex[tri->index[0]];
- vert2 = &buf_transvertex[tri->index[1]];
- vert3 = &buf_transvertex[tri->index[2]];
-
- dist1 = DotProduct(vert1->v, vpn);
- dist2 = DotProduct(vert2->v, vpn);
- dist3 = DotProduct(vert3->v, vpn);
-
- maxdist = max(dist1, max(dist2, dist3));
- if (maxdist < viewdistcompare)
- continue;
-
- center = (dist1 + dist2 + dist3) * centerscaler - viewdist;
- #if SLOWMATH
- i = (int) center;
- i = bound(0, i, (TRANSDEPTHRES - 1));
- #else
- if (center < 0.0f)
- center = 0.0f;
- center += 8388608.0f;
- i = *((long *)¢er) & 0x7FFFFF;
- i = min(i, (TRANSDEPTHRES - 1));
- #endif
- tri->next = buf_transtri_list[i];
- buf_transtri_list[i] = tri;
- k++;
- }
-
- if (currentmesh + k > max_meshs || currenttriangle + k > max_batch || currentvertex + currenttransvertex > max_verts)
+ for (;transmesh;transmesh = transmesh->chain)
+ {
+ int numverts = transmesh->lastvert - transmesh->firstvert + 1;
+ if (currentmesh >= max_meshs || currenttriangle + transmesh->triangles > max_batch || currentvertex + numverts > max_verts)
R_Mesh_Render();
- // note: can't batch these because they can be rendered in any order
- // there can never be more transparent triangles than fit in main buffers
- memcpy(&buf_vertex[currentvertex], &buf_transvertex[0], currenttransvertex * sizeof(buf_vertex_t));
- memcpy(&buf_fcolor[currentvertex], &buf_transfcolor[0], currenttransvertex * sizeof(buf_fcolor_t));
- for (i = 0;i < backendunits;i++)
- memcpy(&buf_texcoord[i][currentvertex], &buf_transtexcoord[i][0], currenttransvertex * sizeof(buf_texcoord_t));
+ memcpy(&buf_vertex[currentvertex], &buf_transvertex[transmesh->firstvert], numverts * sizeof(buf_vertex_t));
+ memcpy(&buf_fcolor[currentvertex], &buf_transfcolor[transmesh->firstvert], numverts * sizeof(buf_fcolor_t));
+ for (i = 0;i < backendunits && transmesh->textures[i];i++)
+ memcpy(&buf_texcoord[i][currentvertex], &buf_transtexcoord[i][transmesh->firstvert], numverts * sizeof(buf_texcoord_t));
- for (j = TRANSDEPTHRES - 1;j >= 0;j--)
+ mesh = &buf_mesh[currentmesh++];
+ *mesh = *transmesh; // copy mesh properties
+ mesh->firstvert = currentvertex;
+ mesh->lastvert = currentvertex + numverts - 1;
+ currentvertex += numverts;
+ mesh->firsttriangle = currenttriangle;
+ for (tri = transmesh->transchain;tri;tri = tri->meshsortchain)
{
- if ((tri = buf_transtri_list[j]))
- {
- while(tri)
- {
- mesh = &buf_mesh[currentmesh++];
- *mesh = *tri->mesh; // copy mesh properties
- buf_tri[currenttriangle].index[0] = tri->index[0] + currentvertex;
- buf_tri[currenttriangle].index[1] = tri->index[1] + currentvertex;
- buf_tri[currenttriangle].index[2] = tri->index[2] + currentvertex;
- mesh->firstvert = min(buf_tri[currenttriangle].index[0], min(buf_tri[currenttriangle].index[1], buf_tri[currenttriangle].index[2]));
- mesh->lastvert = max(buf_tri[currenttriangle].index[0], max(buf_tri[currenttriangle].index[1], buf_tri[currenttriangle].index[2]));
- mesh->firsttriangle = currenttriangle++;
- mesh->triangles = 1;
- tri = tri->next;
- }
- }
+ buf_tri[currenttriangle].index[0] = tri->index[0];
+ buf_tri[currenttriangle].index[1] = tri->index[1];
+ buf_tri[currenttriangle].index[2] = tri->index[2];
+ currenttriangle++;
}
- currentvertex += currenttransvertex;
- currenttransmesh = 0;
- currenttranstriangle = 0;
- currenttransvertex = 0;
+ mesh->triangles = currenttriangle - mesh->firsttriangle;
}
+
+ currenttransmesh = 0;
+ currenttranstriangle = 0;
+ currenttransvertex = 0;
}
void R_Mesh_Draw(const rmeshinfo_t *m)
{
// these are static because gcc runs out of virtual registers otherwise
- static int i, j, *index, overbright;
+ static int i, j, overbright;
static float *in, scaler;
static float cr, cg, cb, ca;
static buf_mesh_t *mesh;
static buf_vertex_t *vert;
static buf_fcolor_t *fcolor;
static buf_texcoord_t *texcoord[MAX_TEXTUREUNITS];
- static buf_transtri_t *tri;
+
+ 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)
- return;
+ 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))
{
// transmesh is only for storage of transparent meshs until they
// are inserted into the main mesh array
mesh = &buf_transmesh[currenttransmesh++];
-
- // transparent meshs are broken up into individual triangles which can
- // be sorted by depth
- index = m->index;
- for (i = 0;i < m->numtriangles;i++)
- {
- tri = &buf_transtri[currenttranstriangle++];
- tri->mesh = mesh;
- tri->index[0] = *index++ + currenttransvertex;
- tri->index[1] = *index++ + currenttransvertex;
- tri->index[2] = *index++ + currenttransvertex;
- }
+ mesh->firsttriangle = currenttranstriangle;
+ memcpy(&buf_transtri[currenttranstriangle].index[0], m->index, sizeof(int[3]) * m->numtriangles);
+ currenttranstriangle += m->numtriangles;
mesh->firstvert = currenttransvertex;
mesh->lastvert = currenttransvertex + m->numverts - 1;
for (i = 0;i < backendunits;i++)
texcoord[i] = &buf_texcoord[i][currentvertex];
- mesh = &buf_mesh[currentmesh++];
// opaque meshs are rendered directly
- index = (int *)&buf_tri[currenttriangle];
+ mesh = &buf_mesh[currentmesh++];
mesh->firsttriangle = currenttriangle;
+ memcpy(&buf_tri[currenttriangle].index[0], m->index, sizeof(int[3]) * m->numtriangles);
currenttriangle += m->numtriangles;
- for (i = 0;i < m->numtriangles * 3;i++)
- index[i] = m->index[i] + currentvertex;
mesh->firstvert = currentvertex;
mesh->lastvert = currentvertex + m->numverts - 1;
for (;j < backendunits;j++)
memset(&texcoord[j][0].t[0], 0, m->numverts * sizeof(buf_texcoord_t));
#endif
+
+ if (currenttriangle >= max_batch)
+ 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;
+ 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;
+ }
+
+ 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;
+ }
+
+ if (m->transparent)
+ {
+ if (currenttransmesh >= max_meshs || (currenttranstriangle + m->numtriangles) > max_meshs || (currenttransvertex + m->numverts) > max_verts)
+ {
+ 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;
+ memcpy(&buf_transtri[currenttranstriangle].index[0], m->index, sizeof(int[3]) * m->numtriangles);
+ currenttranstriangle += m->numtriangles;
+
+ mesh->firstvert = currenttransvertex;
+ mesh->lastvert = currenttransvertex + m->numverts - 1;
+ currenttransvertex += m->numverts;
+ }
+ else
+ {
+ if (m->numtriangles > max_meshs || m->numverts > max_verts)
+ {
+ Con_Printf("R_Mesh_Draw_NativeOnly: mesh too big for buffers\n");
+ return;
+ }
+
+ 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];
+
+ mesh = &buf_mesh[currentmesh++];
+ // opaque meshs are rendered directly
+ mesh->firsttriangle = currenttriangle;
+ memcpy(&buf_tri[currenttriangle].index[0], m->index, sizeof(int[3]) * m->numtriangles);
+ currenttriangle += m->numtriangles;
+
+ mesh->firstvert = currentvertex;
+ mesh->lastvert = currentvertex + m->numverts - 1;
+ currentvertex += m->numverts;
+ }
+
+ // code shared for transparent and opaque meshs
+ mesh->blendfunc1 = m->blendfunc1;
+ mesh->blendfunc2 = m->blendfunc2;
+ mesh->depthmask = (m->blendfunc2 == GL_ZERO || m->depthwrite);
+ mesh->depthtest = !m->depthdisable;
+ mesh->triangles = m->numtriangles;
+ 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));
+ #if 0
+ for (;j < backendunits;j++)
+ memset(&texcoord[j][0].t[0], 0, m->numverts * sizeof(buf_texcoord_t));
+ #endif
+
+ 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();
+}
+
+/*
+void R_Mesh_Draw_GetBuffer(volatile rmeshinfo_t *m)
+{
+ // these are static because gcc runs out of virtual registers otherwise
+ static int i, j, *index, overbright;
+ static float *in, scaler;
+
+ if (!backendactive)
+ Sys_Error("R_Mesh_Draw: called when backend is not active\n");
+
+ if (!m->numtriangles
+ || !m->numverts)
+ Host_Error("R_Mesh_Draw: no triangles or verts\n");
+
+ 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;
+ }
+
+ if (m->transparent)
+ {
+ if (currenttransmesh >= max_meshs || (currenttranstriangle + m->numtriangles) > max_meshs || (currenttransvertex + m->numverts) > max_verts)
+ {
+ if (!transranout)
+ {
+ Con_Printf("R_Mesh_Draw: ran out of room for transparent meshs\n");
+ transranout = true;
+ }
+ return;
+ }
+
+ c_transmeshs++;
+ c_transtris += m->numtriangles;
+ m->vertex = &buf_transvertex[currenttransvertex].v[0];
+ m->color = &buf_transfcolor[currenttransvertex].c[0];
+ for (i = 0;i < backendunits;i++)
+ m->texcoords[i] = &buf_transtexcoord[i][currenttransvertex].tc[0];
+
+ // transmesh is only for storage of transparent meshs until they
+ // are inserted into the main mesh array
+ mesh = &buf_transmesh[currenttransmesh++];
+ mesh->firsttriangle = currenttranstriangle;
+ memcpy(&buf_transtri[currenttranstriangle].index[0], m->index, sizeof(int[3]) * m->numtriangles);
+ currenttranstriangle += m->numtriangles;
+
+ mesh->firstvert = currenttransvertex;
+ mesh->lastvert = currenttransvertex + m->numverts - 1;
+ currenttransvertex += m->numverts;
+ }
+ else
+ {
+ if (m->numtriangles > max_meshs || m->numverts > max_verts)
+ {
+ Con_Printf("R_Mesh_Draw_NativeOnly: mesh too big for buffers\n");
+ return;
+ }
+
+ 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;
+ memcpy(&buf_tri[currenttriangle].index[0], m->index, sizeof(int[3]) * m->numtriangles);
+ currenttriangle += m->numtriangles;
+
+ mesh->firstvert = currentvertex;
+ mesh->lastvert = currentvertex + m->numverts - 1;
+ currentvertex += m->numverts;
+ }
+
+ // code shared for transparent and opaque meshs
+ mesh->blendfunc1 = m->blendfunc1;
+ mesh->blendfunc2 = m->blendfunc2;
+ mesh->depthmask = (m->blendfunc2 == GL_ZERO || m->depthwrite);
+ mesh->depthtest = !m->depthdisable;
+ mesh->triangles = m->numtriangles;
+ 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));
+ #if 0
+ for (;j < backendunits;j++)
+ memset(&texcoord[j][0].t[0], 0, m->numverts * sizeof(buf_texcoord_t));
+ #endif
+
+ 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();
}
+*/
void R_Mesh_DrawPolygon(rmeshinfo_t *m, int numverts)
{
R_Mesh_Draw(m);
}
+/*
// LordHavoc: this thing is evil, but necessary because decals account for so much overhead
void R_Mesh_DrawDecal(const rmeshinfo_t *m)
{
mesh->blendfunc2 = m->blendfunc2;
mesh->depthmask = false;
mesh->depthtest = true;
+ mesh->firsttriangle = currenttranstriangle;
mesh->triangles = 2;
mesh->textures[0] = m->tex[0];
mesh->texturergbscale[0] = overbright ? 4 : 1;
}
mesh->chain = NULL;
- // transparent meshs are broken up into individual triangles which can
- // be sorted by depth
- index = m->index;
- tri = &buf_transtri[currenttranstriangle++];
- tri->mesh = mesh;
- tri->index[0] = 0 + currenttransvertex;
- tri->index[1] = 1 + currenttransvertex;
- tri->index[2] = 2 + currenttransvertex;
- tri = &buf_transtri[currenttranstriangle++];
- tri->mesh = mesh;
- tri->index[0] = 0 + currenttransvertex;
- tri->index[1] = 2 + currenttransvertex;
- tri->index[2] = 3 + currenttransvertex;
-
+ index = &buf_transtri[currenttranstriangle].index[0];
mesh->firstvert = currenttransvertex;
mesh->lastvert = currenttransvertex + 3;
+ currenttranstriangle += 2;
currenttransvertex += 4;
}
else
}
// opaque meshs are rendered directly
- index = (int *)&buf_tri[currenttriangle];
- index[0] = 0 + currentvertex;
- index[1] = 1 + currentvertex;
- index[2] = 2 + currentvertex;
- index[3] = 0 + currentvertex;
- index[4] = 2 + currentvertex;
- index[5] = 3 + currentvertex;
+ index = &buf_tri[currenttriangle].index[0];
mesh->firstvert = currentvertex;
mesh->lastvert = currentvertex + 3;
currenttriangle += 2;
currentvertex += 4;
}
+ index[0] = 0;
+ index[1] = 1;
+ index[2] = 2;
+ index[3] = 0;
+ index[4] = 2;
+ index[5] = 3;
+
// buf_vertex_t must match the size of the decal vertex array (or vice versa)
memcpy(vert, m->vertex, 4 * sizeof(buf_vertex_t));
// buf_texcoord_t must be the same size as the decal texcoord array (or vice versa)
memcpy(&texcoord[0].t[0], m->texcoords[0], 4 * sizeof(buf_texcoord_t));
+
+ if (currenttriangle >= max_batch)
+ R_Mesh_Render();
}
+*/
/*
==============================================================================
projects / xonotic / darkplaces.git / blobdiff