no message

cocos/core/animation/SkeletalAnimationUtils.cpp

@@ -0,0 +1,110 @@
+/****************************************************************************
+ Copyright (c) 2021-2023 Xiamen Yaji Software Co., Ltd.
+
+ http://www.cocos.com
+
+ 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 "core/animation/SkeletalAnimationUtils.h"
+#include "core/scene-graph/Node.h"
+
+namespace cc {
+
+namespace {
+ccstd::vector<IJointTransform *> stack;
+ccstd::unordered_map<ccstd::string, IJointTransform *> pool;
+} // namespace
+
+Mat4 getWorldMatrix(IJointTransform *transform, int32_t stamp) {
+    uint32_t i = 0;
+    Mat4 *res = nullptr;
+    while (transform != nullptr) {
+        if ((transform->stamp == stamp || transform->stamp + 1 == stamp) && !transform->node->getChangedFlags()) {
+            res = &transform->world;
+            transform->stamp = stamp;
+            break;
+        }
+        transform->stamp = stamp;
+        stack.resize(i + 1);
+        stack[i++] = transform;
+        transform = transform->parent;
+    }
+    while (i > 0) {
+        transform = stack[--i];
+        stack[i] = nullptr;
+        const auto *node = transform->node;
+        CC_ASSERT_NOT_NULL(node);
+        Mat4::fromRTS(node->getRotation(), node->getPosition(), node->getScale(), &transform->local);
+        if (res != nullptr) {
+            Mat4::multiply(*res, transform->local, &transform->world);
+        } else {
+            transform->world = transform->local;
+        }
+        res = &transform->world;
+    }
+    return res != nullptr ? *res : Mat4::IDENTITY;
+}
+
+IJointTransform *getTransform(Node *node, Node *root) {
+    IJointTransform *joint = nullptr;
+    uint32_t i = 0;
+    while (node != root) {
+        const ccstd::string &id = node->getUuid();
+        auto iter = pool.find(id);
+        if (iter != pool.end()) {
+            joint = iter->second;
+            break;
+        }
+        // TODO(): object reuse
+        joint = ccnew IJointTransform;
+        joint->node = node;
+        pool[id] = joint;
+        stack.resize(i + 1);
+        stack[i++] = joint;
+        node = node->getParent();
+        joint = nullptr;
+    }
+    IJointTransform *child;
+    while (i > 0) {
+        child = stack[--i];
+        stack[i] = nullptr;
+        child->parent = joint;
+        joint = child;
+    }
+    return joint;
+}
+
+void deleteTransform(Node *node) {
+    IJointTransform *transform = nullptr;
+    auto iter = pool.find(node->getUuid());
+    if (iter != pool.end()) {
+        transform = iter->second;
+    }
+
+    while (transform != nullptr) {
+        iter = pool.find(transform->node->getUuid());
+        if (iter != pool.end()) {
+            pool.erase(iter);
+        }
+        transform = transform->parent;
+    }
+}
+
+} // namespace cc

cocos/core/animation/SkeletalAnimationUtils.h

@@ -0,0 +1,61 @@
+/****************************************************************************
+ Copyright (c) 2021-2023 Xiamen Yaji Software Co., Ltd.
+
+ http://www.cocos.com
+
+ 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.
+****************************************************************************/
+
+#pragma once
+
+#include "base/Ptr.h"
+#include "base/RefCounted.h"
+#include "math/Mat4.h"
+#include "renderer/gfx-base/GFXTexture.h"
+
+namespace cc {
+
+class Node;
+
+struct IJointTransform : RefCounted {
+    Node *node{nullptr};
+    Mat4 local;
+    Mat4 world;
+    int stamp{-1};
+    IntrusivePtr<IJointTransform> parent;
+};
+
+struct RealTimeJointTexture {
+    ~RealTimeJointTexture() {
+        CC_SAFE_DELETE_ARRAY(buffer);
+        for (auto &texture : textures) {
+            texture->destroy();
+        }
+    }
+    std::vector<IntrusivePtr<gfx::Texture>> textures;
+    float *buffer = nullptr;
+};
+
+Mat4 getWorldMatrix(IJointTransform *transform, int32_t stamp);
+
+IJointTransform *getTransform(Node *node, Node *root);
+
+void deleteTransform(Node *node);
+
+} // namespace cc