More work. Audio driver works enough to play music now.

PortabilityLayer/QDPort.cpp

@@ -0,0 +1,77 @@
+#include "QDPort.h"
+#include "PLErrorCodes.h"
+#include "MemoryManager.h"
+#include "MMHandleBlock.h"
+#include "QDPixMap.h"
+
+namespace PortabilityLayer
+{
+	QDPort::QDPort(QDPortType portType)
+		: m_portType(portType)
+		, m_left(0)
+		, m_top(0)
+		, m_width(0)
+		, m_height(0)
+		, m_pixMap(nullptr)
+		, m_pixelFormat(PixelFormat_Invalid)
+	{
+	}
+
+	QDPort::~QDPort()
+	{
+		if (m_pixMap)
+		{
+			if (*m_pixMap)
+				static_cast<PixMapImpl*>(*m_pixMap)->~PixMapImpl();
+			MemoryManager::GetInstance()->ReleaseHandle(reinterpret_cast<MMHandleBlock*>(m_pixMap));
+		}
+	}
+
+	int QDPort::Init(const Rect &rect, PixelFormat pixelFormat)
+	{
+		m_left = rect.left;
+		m_top = rect.top;
+		m_width = static_cast<uint16_t>(rect.right - rect.left);
+		m_height = static_cast<uint16_t>(rect.bottom - rect.top);
+		m_pixMap = nullptr;
+		m_pixelFormat = pixelFormat;
+
+		size_t pixMapSize = PixMapImpl::SizeForDimensions(m_width, m_height, m_pixelFormat);
+		if (pixMapSize == 0)
+			return mFulErr;
+
+		MMHandleBlock *pmBlock = MemoryManager::GetInstance()->AllocHandle(pixMapSize);
+		if (!pmBlock)
+			return mFulErr;
+
+		new (pmBlock->m_contents) PixMapImpl(m_left, m_top, m_width, m_height, m_pixelFormat);
+		m_pixMap = reinterpret_cast<PixMap**>(&pmBlock->m_contents);
+
+		return noErr;
+	}
+
+	PixMap **QDPort::GetPixMap() const
+	{
+		return m_pixMap;
+	}
+
+	const QDState *QDPort::GetState() const
+	{
+		return &m_state;
+	}
+
+	QDState *QDPort::GetState()
+	{
+		return &m_state;
+	}
+
+	PixelFormat QDPort::GetPixelFormat() const
+	{
+		return m_pixelFormat;
+	}
+
+	Rect QDPort::GetRect() const
+	{
+		return Rect::Create(0, 0, m_height, m_width);
+	}
+}