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Bring in GL's R_RecursiveWorldNode as R_VisiteWorldNodes.

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No surface queuing is done, but entities get queued.
This commit is contained in:
Bill Currie 2011-12-31 14:33:20 +09:00
parent ea2ae1436c
commit 091e16f9d2
1 changed files with 119 additions and 0 deletions
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119
libs/video/renderer/glsl/glsl_main.c
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@ -170,11 +170,130 @@ R_RenderEntities (void)
R_SpriteEnd ();
}
static inline void
visit_leaf (mleaf_t *leaf)
{
// deal with model fragments in this leaf
if (leaf->efrags)
R_StoreEfrags (leaf->efrags);
}
static inline int
get_side (mnode_t *node)
{
// find which side of the node we are on
plane_t *plane = node->plane;
if (plane->type < 3)
return (r_origin[plane->type] - plane->dist) < 0;
return (DotProduct (r_origin, plane->normal) - plane->dist) < 0;
}
static inline void
visit_node (mnode_t *node, int side)
{
int c;
msurface_t *surf;
// sneaky hack for side = side ? SURF_PLANEBACK : 0;
side = (~side + 1) & SURF_PLANEBACK;
// draw stuff
if ((c = node->numsurfaces)) {
surf = r_worldentity.model->surfaces + node->firstsurface;
for (; c; c--, surf++) {
if (surf->visframe != r_visframecount)
continue;
// side is either 0 or SURF_PLANEBACK
if (side ^ (surf->flags & SURF_PLANEBACK))
continue; // wrong side
//chain_surface (surf, 0, 0);
}
}
}
static inline int
test_node (mnode_t *node)
{
if (node->contents < 0)
return 0;
if (node->visframe != r_visframecount)
return 0;
if (R_CullBox (node->minmaxs, node->minmaxs + 3))
return 0;
return 1;
}
static void
R_VisitWorldNodes (mnode_t *node)
{
#define NODE_STACK 1024
struct {
mnode_t *node;
int side;
} *node_ptr, node_stack[NODE_STACK];
mnode_t *front;
int side;
node_ptr = node_stack;
while (1) {
while (test_node (node)) {
side = get_side (node);
front = node->children[side];
if (test_node (front)) {
if (node_ptr - node_stack == NODE_STACK)
Sys_Error ("node_stack overflow");
node_ptr->node = node;
node_ptr->side = side;
node_ptr++;
node = front;
continue;
}
if (front->contents < 0 && front->contents != CONTENTS_SOLID)
visit_leaf ((mleaf_t *) front);
visit_node (node, side);
node = node->children[!side];
}
if (node->contents < 0 && node->contents != CONTENTS_SOLID)
visit_leaf ((mleaf_t *) node);
if (node_ptr != node_stack) {
node_ptr--;
node = node_ptr->node;
side = node_ptr->side;
visit_node (node, side);
node = node->children[!side];
continue;
}
break;
}
if (node->contents < 0 && node->contents != CONTENTS_SOLID)
visit_leaf ((mleaf_t *) node);
}
static void
R_DrawWorld (void)
{
entity_t worldent;
memset (&worldent, 0, sizeof (worldent));
worldent.model = r_worldentity.model;
currententity = &worldent;
R_VisitWorldNodes (worldent.model->nodes);
}
VISIBLE void
R_RenderView (void)
{
R_SetupFrame ();
R_SetupView ();
R_DrawWorld ();
R_RenderEntities ();
}