initial commit, 4.5 stable

servers/rendering/renderer_rd/framebuffer_cache_rd.cpp

@@ -0,0 +1,87 @@
+/**************************************************************************/
+/*  framebuffer_cache_rd.cpp                                              */
+/**************************************************************************/
+/*                         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.                 */
+/**************************************************************************/
+
+#include "framebuffer_cache_rd.h"
+
+FramebufferCacheRD *FramebufferCacheRD::singleton = nullptr;
+
+void FramebufferCacheRD::_bind_methods() {
+	ClassDB::bind_static_method("FramebufferCacheRD", D_METHOD("get_cache_multipass", "textures", "passes", "views"), &FramebufferCacheRD::get_cache_multipass_array);
+}
+
+void FramebufferCacheRD::_invalidate(Cache *p_cache) {
+	if (p_cache->prev) {
+		p_cache->prev->next = p_cache->next;
+	} else {
+		// At beginning of table
+		uint32_t table_idx = p_cache->hash % HASH_TABLE_SIZE;
+		hash_table[table_idx] = p_cache->next;
+	}
+
+	if (p_cache->next) {
+		p_cache->next->prev = p_cache->prev;
+	}
+
+	cache_allocator.free(p_cache);
+	cache_instances_used--;
+}
+void FramebufferCacheRD::_framebuffer_invalidation_callback(void *p_userdata) {
+	singleton->_invalidate(reinterpret_cast<Cache *>(p_userdata));
+}
+
+RID FramebufferCacheRD::get_cache_multipass_array(const TypedArray<RID> &p_textures, const TypedArray<RDFramebufferPass> &p_passes, uint32_t p_views) {
+	Vector<RID> textures;
+	Vector<RD::FramebufferPass> passes;
+
+	for (int i = 0; i < p_textures.size(); i++) {
+		RID texture = p_textures[i];
+		textures.push_back(texture); // store even if NULL
+	}
+
+	for (int i = 0; i < p_passes.size(); i++) {
+		Ref<RDFramebufferPass> pass = p_passes[i];
+		if (pass.is_valid()) {
+			passes.push_back(pass->base);
+		}
+	}
+
+	return FramebufferCacheRD::get_singleton()->get_cache_multipass(textures, passes, p_views);
+}
+
+FramebufferCacheRD::FramebufferCacheRD() {
+	ERR_FAIL_COND(singleton != nullptr);
+	singleton = this;
+}
+
+FramebufferCacheRD::~FramebufferCacheRD() {
+	if (cache_instances_used > 0) {
+		ERR_PRINT("At exit: " + itos(cache_instances_used) + " framebuffer cache instance(s) still in use.");
+	}
+}