311 lines
9.6 KiB
C++
311 lines
9.6 KiB
C++
/**************************************************************************/
|
|
/* framebuffer_cache_rd.h */
|
|
/**************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/**************************************************************************/
|
|
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
|
|
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
|
/* a copy of this software and associated documentation files (the */
|
|
/* "Software"), to deal in the Software without restriction, including */
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
|
/* the following conditions: */
|
|
/* */
|
|
/* The above copyright notice and this permission notice shall be */
|
|
/* included in all copies or substantial portions of the Software. */
|
|
/* */
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
/**************************************************************************/
|
|
|
|
#ifndef FRAMEBUFFER_CACHE_RD_H
|
|
#define FRAMEBUFFER_CACHE_RD_H
|
|
|
|
#include "core/templates/local_vector.h"
|
|
#include "core/templates/paged_allocator.h"
|
|
#include "servers/rendering/rendering_device.h"
|
|
|
|
class FramebufferCacheRD : public Object {
|
|
GDCLASS(FramebufferCacheRD, Object)
|
|
|
|
struct Cache {
|
|
Cache *prev = nullptr;
|
|
Cache *next = nullptr;
|
|
uint32_t hash = 0;
|
|
RID cache;
|
|
LocalVector<RID> textures;
|
|
LocalVector<RD::FramebufferPass> passes;
|
|
uint32_t views = 0;
|
|
};
|
|
|
|
PagedAllocator<Cache> cache_allocator;
|
|
|
|
enum {
|
|
HASH_TABLE_SIZE = 16381 // Prime
|
|
};
|
|
|
|
Cache *hash_table[HASH_TABLE_SIZE] = {};
|
|
|
|
static _FORCE_INLINE_ uint32_t _hash_pass(const RD::FramebufferPass &p, uint32_t h) {
|
|
h = hash_murmur3_one_32(p.depth_attachment, h);
|
|
h = hash_murmur3_one_32(p.vrs_attachment, h);
|
|
|
|
h = hash_murmur3_one_32(p.color_attachments.size(), h);
|
|
for (int i = 0; i < p.color_attachments.size(); i++) {
|
|
h = hash_murmur3_one_32(p.color_attachments[i], h);
|
|
}
|
|
|
|
h = hash_murmur3_one_32(p.resolve_attachments.size(), h);
|
|
for (int i = 0; i < p.resolve_attachments.size(); i++) {
|
|
h = hash_murmur3_one_32(p.resolve_attachments[i], h);
|
|
}
|
|
|
|
h = hash_murmur3_one_32(p.preserve_attachments.size(), h);
|
|
for (int i = 0; i < p.preserve_attachments.size(); i++) {
|
|
h = hash_murmur3_one_32(p.preserve_attachments[i], h);
|
|
}
|
|
|
|
return h;
|
|
}
|
|
|
|
static _FORCE_INLINE_ bool _compare_pass(const RD::FramebufferPass &a, const RD::FramebufferPass &b) {
|
|
if (a.depth_attachment != b.depth_attachment) {
|
|
return false;
|
|
}
|
|
|
|
if (a.vrs_attachment != b.vrs_attachment) {
|
|
return false;
|
|
}
|
|
|
|
if (a.color_attachments.size() != b.color_attachments.size()) {
|
|
return false;
|
|
}
|
|
|
|
for (int i = 0; i < a.color_attachments.size(); i++) {
|
|
if (a.color_attachments[i] != b.color_attachments[i]) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (a.resolve_attachments.size() != b.resolve_attachments.size()) {
|
|
return false;
|
|
}
|
|
|
|
for (int i = 0; i < a.resolve_attachments.size(); i++) {
|
|
if (a.resolve_attachments[i] != b.resolve_attachments[i]) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (a.preserve_attachments.size() != b.preserve_attachments.size()) {
|
|
return false;
|
|
}
|
|
|
|
for (int i = 0; i < a.preserve_attachments.size(); i++) {
|
|
if (a.preserve_attachments[i] != b.preserve_attachments[i]) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
_FORCE_INLINE_ uint32_t _hash_rids(uint32_t h, const RID &arg) {
|
|
return hash_murmur3_one_64(arg.get_id(), h);
|
|
}
|
|
|
|
template <typename... Args>
|
|
uint32_t _hash_rids(uint32_t h, const RID &arg, Args... args) {
|
|
h = hash_murmur3_one_64(arg.get_id(), h);
|
|
return _hash_rids(h, args...);
|
|
}
|
|
|
|
_FORCE_INLINE_ bool _compare_args(uint32_t idx, const LocalVector<RID> &textures, const RID &arg) {
|
|
return textures[idx] == arg;
|
|
}
|
|
|
|
template <typename... Args>
|
|
_FORCE_INLINE_ bool _compare_args(uint32_t idx, const LocalVector<RID> &textures, const RID &arg, Args... args) {
|
|
if (textures[idx] != arg) {
|
|
return false;
|
|
}
|
|
return _compare_args(idx + 1, textures, args...);
|
|
}
|
|
|
|
_FORCE_INLINE_ void _create_args(Vector<RID> &textures, const RID &arg) {
|
|
textures.push_back(arg);
|
|
}
|
|
|
|
template <typename... Args>
|
|
_FORCE_INLINE_ void _create_args(Vector<RID> &textures, const RID &arg, Args... args) {
|
|
textures.push_back(arg);
|
|
_create_args(textures, args...);
|
|
}
|
|
|
|
static FramebufferCacheRD *singleton;
|
|
|
|
uint32_t cache_instances_used = 0;
|
|
|
|
void _invalidate(Cache *p_cache);
|
|
static void _framebuffer_invalidation_callback(void *p_userdata);
|
|
|
|
RID _allocate_from_data(uint32_t p_views, uint32_t p_hash, uint32_t p_table_idx, const Vector<RID> &p_textures, const Vector<RD::FramebufferPass> &p_passes) {
|
|
RID rid;
|
|
if (p_passes.size()) {
|
|
rid = RD::get_singleton()->framebuffer_create_multipass(p_textures, p_passes, RD::INVALID_ID, p_views);
|
|
} else {
|
|
rid = RD::get_singleton()->framebuffer_create(p_textures, RD::INVALID_ID, p_views);
|
|
}
|
|
|
|
ERR_FAIL_COND_V(rid.is_null(), rid);
|
|
|
|
Cache *c = cache_allocator.alloc();
|
|
c->views = p_views;
|
|
c->cache = rid;
|
|
c->hash = p_hash;
|
|
c->textures.resize(p_textures.size());
|
|
for (uint32_t i = 0; i < c->textures.size(); i++) {
|
|
c->textures[i] = p_textures[i];
|
|
}
|
|
c->passes.resize(p_passes.size());
|
|
for (uint32_t i = 0; i < c->passes.size(); i++) {
|
|
c->passes[i] = p_passes[i];
|
|
}
|
|
c->prev = nullptr;
|
|
c->next = hash_table[p_table_idx];
|
|
if (hash_table[p_table_idx]) {
|
|
hash_table[p_table_idx]->prev = c;
|
|
}
|
|
hash_table[p_table_idx] = c;
|
|
|
|
RD::get_singleton()->framebuffer_set_invalidation_callback(rid, _framebuffer_invalidation_callback, c);
|
|
|
|
cache_instances_used++;
|
|
|
|
return rid;
|
|
}
|
|
|
|
public:
|
|
template <typename... Args>
|
|
RID get_cache(Args... args) {
|
|
uint32_t h = hash_murmur3_one_32(1); //1 view
|
|
h = hash_murmur3_one_32(sizeof...(Args), h);
|
|
h = _hash_rids(h, args...);
|
|
h = hash_murmur3_one_32(0, h); // 0 passes
|
|
h = hash_fmix32(h);
|
|
|
|
uint32_t table_idx = h % HASH_TABLE_SIZE;
|
|
{
|
|
const Cache *c = hash_table[table_idx];
|
|
|
|
while (c) {
|
|
if (c->hash == h && c->passes.size() == 0 && c->textures.size() == sizeof...(Args) && c->views == 1 && _compare_args(0, c->textures, args...)) {
|
|
return c->cache;
|
|
}
|
|
c = c->next;
|
|
}
|
|
}
|
|
|
|
// Not in cache, create:
|
|
|
|
Vector<RID> textures;
|
|
_create_args(textures, args...);
|
|
|
|
return _allocate_from_data(1, h, table_idx, textures, Vector<RD::FramebufferPass>());
|
|
}
|
|
|
|
template <typename... Args>
|
|
RID get_cache_multiview(uint32_t p_views, Args... args) {
|
|
uint32_t h = hash_murmur3_one_32(p_views);
|
|
h = hash_murmur3_one_32(sizeof...(Args), h);
|
|
h = _hash_rids(h, args...);
|
|
h = hash_murmur3_one_32(0, h); // 0 passes
|
|
h = hash_fmix32(h);
|
|
|
|
uint32_t table_idx = h % HASH_TABLE_SIZE;
|
|
{
|
|
const Cache *c = hash_table[table_idx];
|
|
|
|
while (c) {
|
|
if (c->hash == h && c->passes.size() == 0 && c->textures.size() == sizeof...(Args) && c->views == p_views && _compare_args(0, c->textures, args...)) {
|
|
return c->cache;
|
|
}
|
|
c = c->next;
|
|
}
|
|
}
|
|
|
|
// Not in cache, create:
|
|
|
|
Vector<RID> textures;
|
|
_create_args(textures, args...);
|
|
|
|
return _allocate_from_data(p_views, h, table_idx, textures, Vector<RD::FramebufferPass>());
|
|
}
|
|
|
|
RID get_cache_multipass(const Vector<RID> &p_textures, const Vector<RD::FramebufferPass> &p_passes, uint32_t p_views = 1) {
|
|
uint32_t h = hash_murmur3_one_32(p_views);
|
|
h = hash_murmur3_one_32(p_textures.size(), h);
|
|
for (int i = 0; i < p_textures.size(); i++) {
|
|
h = hash_murmur3_one_64(p_textures[i].get_id(), h);
|
|
}
|
|
h = hash_murmur3_one_32(p_passes.size(), h);
|
|
for (int i = 0; i < p_passes.size(); i++) {
|
|
h = _hash_pass(p_passes[i], h);
|
|
}
|
|
|
|
h = hash_fmix32(h);
|
|
|
|
uint32_t table_idx = h % HASH_TABLE_SIZE;
|
|
{
|
|
const Cache *c = hash_table[table_idx];
|
|
|
|
while (c) {
|
|
if (c->hash == h && c->views == p_views && c->textures.size() == (uint32_t)p_textures.size() && c->passes.size() == (uint32_t)p_passes.size()) {
|
|
bool all_ok = true;
|
|
|
|
for (int i = 0; i < p_textures.size(); i++) {
|
|
if (p_textures[i] != c->textures[i]) {
|
|
all_ok = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (all_ok) {
|
|
for (int i = 0; i < p_passes.size(); i++) {
|
|
if (!_compare_pass(p_passes[i], c->passes[i])) {
|
|
all_ok = false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (all_ok) {
|
|
return c->cache;
|
|
}
|
|
}
|
|
c = c->next;
|
|
}
|
|
}
|
|
|
|
// Not in cache, create:
|
|
return _allocate_from_data(p_views, h, table_idx, p_textures, p_passes);
|
|
}
|
|
|
|
static FramebufferCacheRD *get_singleton() { return singleton; }
|
|
|
|
FramebufferCacheRD();
|
|
~FramebufferCacheRD();
|
|
};
|
|
|
|
#endif // FRAMEBUFFER_CACHE_RD_H
|