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

PortabilityLayer/QDPixMap.h

@@ -0,0 +1,60 @@
+#pragma once
+
+#include "PLBigEndian.h"
+#include "PLQuickdraw.h"
+#include "PixelFormat.h"
+
+#include <stdint.h>
+
+struct PixMap : public BitMap
+{
+};
+
+namespace PortabilityLayer
+{
+	class PixMapImpl final : public PixMap
+	{
+	public:
+		PixMapImpl(int16_t left, int16_t top, uint16_t width, uint16_t height, PixelFormat pixelFormat);
+		
+		PixelFormat GetPixelFormat() const;
+		size_t GetPitch() const;
+		void *GetPixelData();
+		const void *GetPixelData() const;
+
+		static size_t SizeForDimensions(uint16_t width, uint16_t height, PixelFormat pixelFormat);
+
+	private:
+		static size_t AlignedSize();
+		static size_t PitchForWidth(uint16_t width, PixelFormat pixelFormat);
+
+		int16_t m_left;
+		int16_t m_top;
+		uint16_t m_width;
+		uint16_t m_height;
+		PixelFormat m_pixelFormat;
+
+		size_t m_pitch;
+		void *m_data;
+	};
+}
+
+inline PortabilityLayer::PixelFormat PortabilityLayer::PixMapImpl::GetPixelFormat() const
+{
+	return m_pixelFormat;
+}
+
+inline size_t PortabilityLayer::PixMapImpl::GetPitch() const
+{
+	return m_pitch;
+}
+
+inline void *PortabilityLayer::PixMapImpl::GetPixelData()
+{
+	return m_data;
+}
+
+inline const void *PortabilityLayer::PixMapImpl::GetPixelData() const
+{
+	return m_data;
+}