feat: Move hashes into plugin, merged in extra hashes plugin

lib/libimhex/source/providers/memory_provider.cpp

@@ -0,0 +1,71 @@
+#include <hex/providers/memory_provider.hpp>
+
+#include <cstring>
+
+namespace hex::prv {
+
+    bool MemoryProvider::open() {
+        if (m_data.empty()) {
+            m_data.resize(1);
+        }
+
+        return true;
+    }
+
+    void MemoryProvider::readRaw(u64 offset, void *buffer, size_t size) {
+        auto actualSize = this->getActualSize();
+        if (actualSize == 0 || (offset + size) > actualSize || buffer == nullptr || size == 0)
+            return;
+
+        std::memcpy(buffer, &m_data.front() + offset, size);
+    }
+
+    void MemoryProvider::writeRaw(u64 offset, const void *buffer, size_t size) {
+        if ((offset + size) > this->getActualSize() || buffer == nullptr || size == 0)
+            return;
+
+        std::memcpy(&m_data.front() + offset, buffer, size);
+    }
+
+    void MemoryProvider::resizeRaw(u64 newSize) {
+        m_data.resize(newSize);
+    }
+
+    void MemoryProvider::insertRaw(u64 offset, u64 size) {
+        auto oldSize = this->getActualSize();
+        this->resizeRaw(oldSize + size);
+
+        std::vector<u8> buffer(0x1000);
+        const std::vector<u8> zeroBuffer(0x1000);
+
+        auto position = oldSize;
+        while (position > offset) {
+            const auto readSize = std::min<size_t>(position - offset, buffer.size());
+
+            position -= readSize;
+
+            this->readRaw(position, buffer.data(), readSize);
+            this->writeRaw(position, zeroBuffer.data(), readSize);
+            this->writeRaw(position + size, buffer.data(), readSize);
+        }
+    }
+
+    void MemoryProvider::removeRaw(u64 offset, u64 size) {
+        auto oldSize = this->getActualSize();
+        std::vector<u8> buffer(0x1000);
+
+        const auto newSize = oldSize - size;
+        auto position = offset;
+        while (position < newSize) {
+            const auto readSize = std::min<size_t>(newSize - position, buffer.size());
+
+            this->readRaw(position + size, buffer.data(), readSize);
+            this->writeRaw(position, buffer.data(), readSize);
+
+            position += readSize;
+        }
+
+        this->resizeRaw(oldSize - size);
+    }
+
+}