[bun.js] Expose `ImageData` globally

1 files changed, 67 insertions, 0 deletions

diff --git a/src/javascript/jsc/bindings/webcore/ArrayBufferView.cpp b/src/javascript/jsc/bindings/webcore/ArrayBufferView.cpp
new file mode 100644
index 000000000..9bb609510
--- /dev/null
+++ b/src/javascript/jsc/bindings/webcore/ArrayBufferView.cpp
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2009-2021 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "JavaScriptCore/ArrayBufferView.h"
+
+namespace JSC {
+
+ArrayBufferView::ArrayBufferView(
+    RefPtr<ArrayBuffer>&& buffer, size_t byteOffset, size_t byteLength)
+    : m_byteOffset(byteOffset)
+    , m_isDetachable(true)
+    , m_byteLength(byteLength)
+    , m_buffer(WTFMove(buffer))
+{
+    Checked<size_t, CrashOnOverflow> length(byteOffset);
+    length += byteLength;
+    RELEASE_ASSERT_WITH_SECURITY_IMPLICATION(length <= m_buffer->byteLength());
+    if (m_buffer)
+        m_baseAddress = BaseAddress(static_cast<char*>(m_buffer->data()) + m_byteOffset, byteLength);
+}
+
+ArrayBufferView::~ArrayBufferView()
+{
+    if (!m_isDetachable)
+        m_buffer->unpin();
+}
+
+void ArrayBufferView::setDetachable(bool flag)
+{
+    if (flag == m_isDetachable)
+        return;
+
+    m_isDetachable = flag;
+
+    if (!m_buffer)
+        return;
+
+    if (flag)
+        m_buffer->unpin();
+    else
+        m_buffer->pin();
+}
+
+} // namespace JSC