mesh_chunk *build_mesh_chunk_for_coord(int x, int y)
{
int cx = MESH_CHUNK_X_FOR_WORLD_X(x);
int slot_x = cx & (MESH_CHUNK_CACHE_X-1);
int cy = MESH_CHUNK_Y_FOR_WORLD_Y(y);
int slot_y = cy & (MESH_CHUNK_CACHE_Y-1);
mesh_chunk *mc = &mesh_cache[slot_y][slot_x];
if (mc->vbuf) {
assert(mc->chunk_x != cx || mc->chunk_y != cy);
free_mesh_chunk(mc);
}
{
stbvox_mesh_maker mm;
chunk_set cs;
int i,j;
vec3i wc = { x,y,0 };
for (j=0; j < 4; ++j)
for (i=0; i < 4; ++i)
cs.chunk[j][i] = get_gen_chunk_for_coord(x + (i-1)*GEN_CHUNK_SIZE_X, y + (j-1)*GEN_CHUNK_SIZE_Y);
stbvox_init_mesh_maker(&mm);
generate_mesh_for_chunk_set(&mm, mc, wc, &cs, vertex_build_buffer, sizeof(vertex_build_buffer), face_buffer);
upload_mesh(mc, vertex_build_buffer, face_buffer);
}
return mc;
}
int mesh_worker_handler(void *data)
{
for(;;) {
task t;
if (get_pending_task(&t)) {
switch (t.task_type) {
case JOB_build_mesh: {
stbvox_mesh_maker mm;
mesh_chunk *mc = malloc(sizeof(*mc));
built_mesh out_mesh;
vec3i wc = { t.world_x, t.world_y, 0 };
stbvox_init_mesh_maker(&mm);
mc->chunk_x = t.world_x >> MESH_CHUNK_CACHE_X_LOG2;
mc->chunk_y = t.world_y >> MESH_CHUNK_CACHE_Y_LOG2;
generate_mesh_for_chunk_set(&mm, mc, wc, &t.cs, vertex_build_buffer, sizeof(vertex_build_buffer), face_buffer);
out_mesh.vertex_build_buffer = malloc(mc->num_quads * 16);
out_mesh.face_buffer = malloc(mc->num_quads * 4);
memcpy(out_mesh.vertex_build_buffer, vertex_build_buffer, mc->num_quads * 16);
memcpy(out_mesh.face_buffer, face_buffer, mc->num_quads * 4);
{
int i;
for (i=0; i < 16; ++i)
release_gen_chunk(t.cs.chunk[0][i]);
}
out_mesh.mc = mc;
if (!add_to_queue(&built_meshes, &out_mesh)) {
free(out_mesh.vertex_build_buffer);
free(out_mesh.face_buffer);
} else
waiter_wake(&manager_monitor);
break;
}
case JOB_generate_terrain: {
finished_gen_chunk fgc;
fgc.world_x = t.world_x;
fgc.world_y = t.world_y;
fgc.gc = generate_chunk(t.world_x, t.world_y);
if (!add_to_queue(&finished_gen, &fgc))
release_gen_chunk(fgc.gc);
else {
++fgc.gc->ref_count;
waiter_wake(&manager_monitor);
}
break;
}
}
}
}
}
int mesh_worker_handler(void *data)
{
for(;;) {
task t;
if (get_pending_task(&t)) {
switch (t.task_type) {
case JOB_build_mesh: {
stbvox_mesh_maker mm;
mesh_chunk *mc = malloc(sizeof(*mc));
built_mesh out_mesh;
vec3i wc = { t.world_x, t.world_y, 0 };
stbvox_init_mesh_maker(&mm);
mc->chunk_x = t.world_x >> MESH_CHUNK_CACHE_X_LOG2;
mc->chunk_y = t.world_y >> MESH_CHUNK_CACHE_Y_LOG2;
generate_mesh_for_chunk_set(&mm, mc, wc, &t.cs, vertex_build_buffer, sizeof(vertex_build_buffer), face_buffer);
out_mesh.vertex_build_buffer = malloc(mc->num_quads * 16);
out_mesh.face_buffer = malloc(mc->num_quads * 4);
memcpy(out_mesh.vertex_build_buffer, vertex_build_buffer, mc->num_quads * 16);
memcpy(out_mesh.face_buffer, face_buffer, mc->num_quads * 4);
out_mesh.mc = mc;
if (!add_built_mesh(&out_mesh)) {
free(out_mesh.vertex_build_buffer);
free(out_mesh.face_buffer);
}
break;
}
case JOB_generate_terrain: {
finished_gen_chunk fgc;
fgc.world_x = t.world_x;
fgc.world_y = t.world_y;
fgc.gc = generate_chunk(t.world_x, t.world_y);
if (!add_gen(fgc))
free(fgc.gc);
break;
}
}
}
}
}
