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

PortabilityLayer/QDPictEmitContext.h

@@ -0,0 +1,35 @@
+#pragma once
+
+#include <stdint.h>
+
+struct Rect;
+
+namespace PortabilityLayer
+{
+	struct RGBAColor;
+	struct QDPictEmitScanlineParameters;
+
+	enum QDPictBlitSourceType
+	{
+		QDPictBlitSourceType_1Bit,
+		QDPictBlitSourceType_Indexed1Bit,
+		QDPictBlitSourceType_Indexed2Bit,
+		QDPictBlitSourceType_Indexed4Bit,
+		QDPictBlitSourceType_Indexed8Bit,
+		QDPictBlitSourceType_RGB15,
+		QDPictBlitSourceType_RGB24_Interleaved,
+		QDPictBlitSourceType_RGB24_Multiplane,
+	};
+
+	bool QDPictBlitSourceType_IsIndexed(QDPictBlitSourceType sourceType);
+
+	class QDPictEmitContext
+	{
+	public:
+		virtual bool SpecifyFrame(const Rect &rect) = 0;
+		virtual Rect ConstrainRegion(const Rect &rect) const = 0;
+		virtual void Start(QDPictBlitSourceType sourceType, const QDPictEmitScanlineParameters &params) = 0;
+		virtual void BlitScanlineAndAdvance(const void *) = 0;
+		virtual bool AllocTempBuffers(uint8_t *&buffer1, size_t buffer1Size, uint8_t *&buffer2, size_t buffer2Size) = 0;
+	};
+}