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eliminate tex_scope; fold into access

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This commit is contained in:
Ryan Fleury
2025-09-18 15:53:00 -07:00
parent c5bcdbf232
commit 4e99312b75
3 changed files with 9 additions and 133 deletions
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src/texture_cache/texture_cache.c
+6 -86
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@@ -44,93 +44,11 @@ tex_init(void)
tex_shared->evictor_thread = thread_launch(tex_evictor_thread__entry_point, 0);
}
////////////////////////////////
//~ rjf: Thread Context Initialization
internal void
tex_tctx_ensure_inited(void)
{
if(tex_tctx == 0)
{
Arena *arena = arena_alloc();
tex_tctx = push_array(arena, TEX_TCTX, 1);
tex_tctx->arena = arena;
}
}
////////////////////////////////
//~ rjf: Scoped Access
internal TEX_Scope *
tex_scope_open(void)
{
tex_tctx_ensure_inited();
TEX_Scope *scope = tex_tctx->free_scope;
if(scope)
{
SLLStackPop(tex_tctx->free_scope);
}
else
{
scope = push_array_no_zero(tex_tctx->arena, TEX_Scope, 1);
}
MemoryZeroStruct(scope);
return scope;
}
internal void
tex_scope_close(TEX_Scope *scope)
{
for(TEX_Touch *touch = scope->top_touch, *next = 0; touch != 0; touch = next)
{
U128 hash = touch->hash;
next = touch->next;
U64 slot_idx = hash.u64[1]%tex_shared->slots_count;
U64 stripe_idx = slot_idx%tex_shared->stripes_count;
TEX_Slot *slot = &tex_shared->slots[slot_idx];
TEX_Stripe *stripe = &tex_shared->stripes[stripe_idx];
MutexScopeR(stripe->rw_mutex)
{
for(TEX_Node *n = slot->first; n != 0; n = n->next)
{
if(u128_match(hash, n->hash) && MemoryMatchStruct(&touch->topology, &n->topology))
{
ins_atomic_u64_dec_eval(&n->scope_ref_count);
break;
}
}
}
SLLStackPush(tex_tctx->free_touch, touch);
}
SLLStackPush(tex_tctx->free_scope, scope);
}
internal void
tex_scope_touch_node__stripe_r_guarded(TEX_Scope *scope, TEX_Node *node)
{
TEX_Touch *touch = tex_tctx->free_touch;
ins_atomic_u64_inc_eval(&node->scope_ref_count);
ins_atomic_u64_eval_assign(&node->last_time_touched_us, os_now_microseconds());
ins_atomic_u64_eval_assign(&node->last_user_clock_idx_touched, update_tick_idx());
if(touch != 0)
{
SLLStackPop(tex_tctx->free_touch);
}
else
{
touch = push_array_no_zero(tex_tctx->arena, TEX_Touch, 1);
}
MemoryZeroStruct(touch);
touch->hash = node->hash;
touch->topology = node->topology;
SLLStackPush(scope->top_touch, touch);
}
////////////////////////////////
//~ rjf: Cache Lookups
internal R_Handle
tex_texture_from_hash_topology(TEX_Scope *scope, U128 hash, TEX_Topology topology)
tex_texture_from_hash_topology(Access *access, U128 hash, TEX_Topology topology)
{
R_Handle handle = {0};
{
@@ -148,7 +66,9 @@ tex_texture_from_hash_topology(TEX_Scope *scope, U128 hash, TEX_Topology topolog
{
handle = n->texture;
found = !r_handle_match(r_handle_zero(), handle);
tex_scope_touch_node__stripe_r_guarded(scope, n);
ins_atomic_u64_eval_assign(&n->last_time_touched_us, os_now_microseconds());
ins_atomic_u64_eval_assign(&n->last_user_clock_idx_touched, update_tick_idx());
access_touch(access, &n->scope_ref_count, stripe->cv);
break;
}
}
@@ -196,13 +116,13 @@ tex_texture_from_hash_topology(TEX_Scope *scope, U128 hash, TEX_Topology topolog
}
internal R_Handle
tex_texture_from_key_topology(TEX_Scope *scope, C_Key key, TEX_Topology topology, U128 *hash_out)
tex_texture_from_key_topology(Access *access, C_Key key, TEX_Topology topology, U128 *hash_out)
{
R_Handle handle = {0};
for(U64 rewind_idx = 0; rewind_idx < C_KEY_HASH_HISTORY_COUNT; rewind_idx += 1)
{
U128 hash = c_hash_from_key(key, rewind_idx);
handle = tex_texture_from_hash_topology(scope, hash, topology);
handle = tex_texture_from_hash_topology(access, hash, topology);
if(!r_handle_match(handle, r_handle_zero()))
{
if(hash_out)