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f999f52f0a
Adds a FramebufferCache singletion that operates the same way as UniformSetCache. Allows creating framebuffers on the fly (and keep them cached if re-requested) such as: ```C++ RID fb = FramebufferCache::get_singleton()->get_cache(texture1,texture2); ```
65 lines
3.0 KiB
C++
65 lines
3.0 KiB
C++
/*************************************************************************/
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/* framebuffer_cache_rd.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include "framebuffer_cache_rd.h"
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FramebufferCacheRD *FramebufferCacheRD::singleton = nullptr;
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void FramebufferCacheRD::_invalidate(Cache *p_cache) {
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if (p_cache->prev) {
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p_cache->prev->next = p_cache->next;
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} else {
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// At beginning of table
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uint32_t table_idx = p_cache->hash % HASH_TABLE_SIZE;
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hash_table[table_idx] = p_cache->next;
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}
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if (p_cache->next) {
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p_cache->next->prev = p_cache->prev;
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}
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cache_allocator.free(p_cache);
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cache_instances_used--;
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}
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void FramebufferCacheRD::_framebuffer_invalidation_callback(void *p_userdata) {
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singleton->_invalidate(reinterpret_cast<Cache *>(p_userdata));
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}
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FramebufferCacheRD::FramebufferCacheRD() {
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ERR_FAIL_COND(singleton != nullptr);
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singleton = this;
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}
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FramebufferCacheRD::~FramebufferCacheRD() {
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if (cache_instances_used > 0) {
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ERR_PRINT("At exit: " + itos(cache_instances_used) + " framebuffer cache instance(s) still in use.");
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}
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}
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