cvar_t gl_mesh_maxtriangles = {0, "gl_mesh_maxtriangles", "1024"};
cvar_t gl_mesh_batchtriangles = {0, "gl_mesh_batchtriangles", "0"};
cvar_t gl_mesh_transtriangles = {0, "gl_mesh_transtriangles", "16384"};
-cvar_t gl_mesh_floatcolors = {0, "gl_mesh_floatcolors", "0"};
+cvar_t gl_mesh_floatcolors = {0, "gl_mesh_floatcolors", "1"};
cvar_t gl_mesh_drawmode = {CVAR_SAVE, "gl_mesh_drawmode", "3"};
cvar_t r_render = {0, "r_render", "1"};
// this is used to increase gl_mesh_maxtriangles automatically if a mesh was
// too large for the buffers in the previous frame
-int overflowedmeshtris = 0;
+int overflowedverts = 0;
+// increase transtriangles automatically too
+int overflowedtransverts = 0;
int gl_maxdrawrangeelementsvertices;
int gl_maxdrawrangeelementsindices;
{
int i;
+ qglGetIntegerv(GL_MAX_ELEMENTS_VERTICES, &gl_maxdrawrangeelementsvertices);
+ qglGetIntegerv(GL_MAX_ELEMENTS_INDICES, &gl_maxdrawrangeelementsindices);
+
+ Con_Printf("OpenGL Backend started with gl_mesh_maxtriangles %i, gl_mesh_transtriangles %i\n", gl_mesh_maxtriangles.integer, gl_mesh_transtriangles.integer);
+ if (qglDrawRangeElements != NULL)
+ Con_Printf("glDrawRangeElements detected (max vertices %i, max indices %i)\n", gl_maxdrawrangeelementsvertices, gl_maxdrawrangeelementsindices);
+ if (strstr(gl_renderer, "3Dfx"))
+ {
+ Con_Printf("3Dfx driver detected, forcing gl_mesh_floatcolors to 0 to prevent crashs\n");
+ Cvar_SetValueQuick(&gl_mesh_floatcolors, 0);
+ }
+ Con_Printf("\n");
+
max_verts = max_meshs * 3;
max_transverts = max_transmeshs * 3;
static void gl_backend_shutdown(void)
{
+ Con_Printf("OpenGL Backend shutting down\n");
+
if (resizingbuffers)
Mem_EmptyPool(gl_backend_mempool);
else
static void gl_backend_bufferchanges(int init)
{
- if (overflowedmeshtris > gl_mesh_maxtriangles.integer)
- Cvar_SetValueQuick(&gl_mesh_maxtriangles, overflowedmeshtris);
- overflowedmeshtris = 0;
+ if (overflowedverts > gl_mesh_maxtriangles.integer * 3)
+ Cvar_SetValueQuick(&gl_mesh_maxtriangles, (int) ((overflowedverts + 2) / 3));
+ overflowedverts = 0;
+
+ if (overflowedtransverts > gl_mesh_transtriangles.integer * 3)
+ Cvar_SetValueQuick(&gl_mesh_transtriangles, (int) ((overflowedtransverts + 2) / 3));
+ overflowedtransverts = 0;
if (gl_mesh_drawmode.integer < 0)
Cvar_SetValueQuick(&gl_mesh_drawmode, 0);
if (gl_mesh_drawmode.integer > 3)
Cvar_SetValueQuick(&gl_mesh_drawmode, 3);
- if (gl_mesh_drawmode.integer >= 3)
+ if (gl_mesh_drawmode.integer >= 3 && qglDrawRangeElements == NULL)
{
- if (qglDrawRangeElements != NULL && gl_maxdrawrangeelementsindices >= 3072 && gl_maxdrawrangeelementsvertices >= 3072)
- {
- // make sure we don't exceed the DrawRangeElements limits
- if (gl_mesh_maxtriangles.integer * 3 > gl_maxdrawrangeelementsindices)
- Cvar_SetValueQuick(&gl_mesh_maxtriangles, (int) (gl_maxdrawrangeelementsindices / 3));
- if (gl_mesh_maxtriangles.integer * 3 > gl_maxdrawrangeelementsvertices)
- Cvar_SetValueQuick(&gl_mesh_maxtriangles, (int) (gl_maxdrawrangeelementsvertices / 3));
- }
- else
- {
- // change drawmode 3 to 2 if 3 won't work
- Cvar_SetValueQuick(&gl_mesh_drawmode, 2);
- }
+ // change drawmode 3 to 2 if 3 won't work at all
+ Cvar_SetValueQuick(&gl_mesh_drawmode, 2);
}
// 21760 is (65536 / 3) rounded off to a multiple of 128
if (gl_mesh_transtriangles.integer > 65536)
Cvar_SetValueQuick(&gl_mesh_transtriangles, 65536);
- if (gl_mesh_batchtriangles.integer < 0)
- Cvar_SetValueQuick(&gl_mesh_batchtriangles, 0);
+ if (gl_mesh_batchtriangles.integer < 1)
+ Cvar_SetValueQuick(&gl_mesh_batchtriangles, 1);
if (gl_mesh_batchtriangles.integer > gl_mesh_maxtriangles.integer)
Cvar_SetValueQuick(&gl_mesh_batchtriangles, gl_mesh_maxtriangles.integer);
void GL_DrawRangeElements(int firstvert, int endvert, int indexcount, GLuint *index)
{
unsigned int i, j, in;
- if (gl_mesh_drawmode.integer >= 3)
+ if (gl_mesh_drawmode.integer >= 3/* && (endvert - firstvert) <= gl_maxdrawrangeelementsvertices && (indexcount) <= gl_maxdrawrangeelementsindices*/)
{
// GL 1.2 or GL 1.1 with extension
qglDrawRangeElements(GL_TRIANGLES, firstvert, endvert, indexcount, GL_UNSIGNED_INT, index);
{
int i;
// flush any queued meshs
- R_Mesh_Render();
+ if (currentmesh)
+ R_Mesh_Render();
if (backendunits > 1)
{
// 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: mesh too big for current gl_mesh_maxtriangles setting, increasing limits\n");
- if (m->numtriangles > overflowedmeshtris)
- overflowedmeshtris = m->numtriangles;
- if (((m->numverts + 2) / 3) > overflowedmeshtris)
- overflowedmeshtris = (m->numverts + 2) / 3;
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)
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])
{
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;
- //}
-
- 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");
- if (m->numtriangles > overflowedmeshtris)
- overflowedmeshtris = m->numtriangles;
- if (((m->numverts + 2) / 3) > overflowedmeshtris)
- overflowedmeshtris = (m->numverts + 2) / 3;
- return;
- }
-
- if (m->transparent)
- {
- 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)
// return false;
//}
+ 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_GetBuffer: mesh too big for current gl_mesh_maxtriangles setting, increasing limits\n");
- if (m->numtriangles > overflowedmeshtris)
- overflowedmeshtris = m->numtriangles;
- if (((m->numverts + 2) / 3) > overflowedmeshtris)
- overflowedmeshtris = (m->numverts + 2) / 3;
return false;
}
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)
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])
{
projects / xonotic / darkplaces.git / blobdiff