m_allocator

1 files changed, 104 insertions, 0 deletions

diff --git a/src/m/m_allocator.cpp b/src/m/m_allocator.cpp
new file mode 100644
index 00000000..a4f2c05b
--- /dev/null
+++ b/src/m/m_allocator.cpp
@@ -0,0 +1,104 @@
+#include <egg/core/eggAllocator.h>
+#include <m/m_allocator.h>
+#include <m/m_heap.h>
+
+// TODO this include is weird
+#include <egg/core/eggAssertHeap.h>
+#include <egg/core/eggHeap.h>
+
+mAllocator_c::mAllocator_c() : EGG::Allocator(mHeap::g_assertHeap, 0x04) {}
+
+mAllocator_c::~mAllocator_c() {}
+
+bool mAllocator_c::attach(EGG::Heap *heap, int align) {
+    if (heap == nullptr) {
+        heap = EGG::Heap::sCurrentHeap;
+    }
+    this->align = align;
+    this->mHeap = heap;
+    heap->initAllocator(this, align);
+    return true;
+}
+
+void *mAllocator_c::alloc(u32 size) {
+    return EGG::Allocator::alloc(size);
+}
+
+void mAllocator_c::free(void *block) {
+    EGG::Allocator::free(block);
+}
+
+mHeapAllocator_c::mHeapAllocator_c() {}
+mHeapAllocator_c::~mHeapAllocator_c() {
+    destroyHeap();
+}
+
+bool mHeapAllocator_c::replaceWithNewFrmHeap(s32 size, EGG::Heap *newHeap, char *heapName, s32 align, u32 attrs) {
+    destroyHeap();
+    EGG::Heap *heap = mHeap::createFrmHeap(size, newHeap, heapName, align, attrs);
+    if (heap == nullptr) {
+        return false;
+    }
+    attach(heap, align);
+    return true;
+}
+
+bool mHeapAllocator_c::replaceWithNewExpHeap(s32 size, EGG::Heap *newHeap, char *heapName, s32 align, u32 attrs) {
+    destroyHeap();
+    EGG::Heap *heap = mHeap::createExpHeap(size, newHeap, heapName, align, attrs);
+    if (heap == nullptr) {
+        return false;
+    }
+    attach(heap, align);
+    return true;
+}
+
+void mHeapAllocator_c::destroyHeap() {
+    EGG::Heap *assertHeap = mHeap::g_assertHeap;
+    if (mHeap != assertHeap) {
+        mHeap->destroy();
+        mHeap = assertHeap;
+    }
+}
+
+inline EGG::Heap *getHeapOfKind(EGG::Heap *heap, EGG::Heap::eHeapKind kind) {
+    if (heap != nullptr && heap->getHeapKind() == kind) {
+        return heap;
+    }
+    return nullptr;
+}
+
+s32 mHeapAllocator_c::adjustFrmHeap() {
+    EGG::Heap *heap = mHeap;
+    if (heap == mHeap::g_assertHeap) {
+        return 0;
+    }
+    return mHeap::adjustFrmHeap(static_cast<EGG::FrmHeap *>(getHeapOfKind(heap, EGG::Heap::HEAP_KIND_FRAME)));
+}
+
+s32 mHeapAllocator_c::adjustExpHeap() {
+    EGG::Heap *heap = mHeap;
+    if (heap == mHeap::g_assertHeap) {
+        return 0;
+    }
+    return mHeap::adjustExpHeap(static_cast<EGG::ExpHeap *>(getHeapOfKind(heap, EGG::Heap::HEAP_KIND_EXPANDED)));
+}
+
+s32 mHeapAllocator_c::createNewTempFrmHeap(s32 size, EGG::Heap *newHeap, char *heapName, s32 align, u32 attrs) {
+    if (!replaceWithNewFrmHeap(size, newHeap, heapName, align, attrs)) {
+        return false;
+    }
+    mHeap::saveCurrentHeap();
+    mHeap::setCurrentHeap(mHeap);
+    return true;
+}
+
+void mHeapAllocator_c::adjustFrmHeapRestoreCurrent() {
+    mHeap::restoreCurrentHeap();
+    EGG::Heap *heap = mHeap;
+    mHeap::adjustFrmHeap(static_cast<EGG::FrmHeap *>(getHeapOfKind(heap, EGG::Heap::HEAP_KIND_FRAME)));
+}
+
+void *mHeapAllocator_c::allocOnHeap(u32 size, mHeapAllocator_c *allocator) {
+    return allocator->alloc(size);
+}