54 lines
1.8 KiB
Diff
54 lines
1.8 KiB
Diff
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diff --git a/thirdparty/vhacd/inc/btScalar.h b/thirdparty/vhacd/inc/btScalar.h
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index 487205062..52297cd78 100644
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--- a/thirdparty/vhacd/inc/btScalar.h
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+++ b/thirdparty/vhacd/inc/btScalar.h
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@@ -535,6 +535,29 @@ struct btTypedObject {
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}
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};
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+// -- GODOT start --
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+// Cherry-picked from Bullet 2.88 to fix GH-27926
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+///align a pointer to the provided alignment, upwards
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+template <typename T>
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+T *btAlignPointer(T *unalignedPtr, size_t alignment)
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+{
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+ struct btConvertPointerSizeT
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+ {
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+ union {
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+ T *ptr;
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+ size_t integer;
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+ };
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+ };
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+ btConvertPointerSizeT converter;
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+
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+ const size_t bit_mask = ~(alignment - 1);
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+ converter.ptr = unalignedPtr;
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+ converter.integer += alignment - 1;
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+ converter.integer &= bit_mask;
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+ return converter.ptr;
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+}
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+// -- GODOT end --
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+
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// -- GODOT start --
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}; // namespace VHACD
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// -- GODOT end --
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diff --git a/thirdparty/vhacd/src/btAlignedAllocator.cpp b/thirdparty/vhacd/src/btAlignedAllocator.cpp
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index ce0e7f26f..8dee31e7e 100644
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--- a/thirdparty/vhacd/src/btAlignedAllocator.cpp
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+++ b/thirdparty/vhacd/src/btAlignedAllocator.cpp
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@@ -72,8 +72,12 @@ static inline void* btAlignedAllocDefault(size_t size, int32_t alignment)
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real = (char*)sAllocFunc(size + sizeof(void*) + (alignment - 1));
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if (real) {
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- offset = (alignment - (unsigned long)(real + sizeof(void*))) & (alignment - 1);
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- ret = (void*)((real + sizeof(void*)) + offset);
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+ // -- GODOT start --
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+ // Synced with Bullet 2.88 to fix GH-27926
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+ //offset = (alignment - (unsigned long)(real + sizeof(void*))) & (alignment - 1);
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+ //ret = (void*)((real + sizeof(void*)) + offset);
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+ ret = btAlignPointer(real + sizeof(void *), alignment);
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+ // -- GODOT end --
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*((void**)(ret)-1) = (void*)(real);
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}
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else {
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