Merge branch 'master' into buffer_storage

1 files changed, 102 insertions, 0 deletions

diff --git a/Source/Core/VideoCommon/FramebufferManagerBase.h b/Source/Core/VideoCommon/FramebufferManagerBase.h
new file mode 100644
index 0000000000..2680f0ced4
--- /dev/null
+++ b/Source/Core/VideoCommon/FramebufferManagerBase.h
@@ -0,0 +1,102 @@
+
+#ifndef _FRAMEBUFFERMANAGERBASE_H
+#define _FRAMEBUFFERMANAGERBASE_H
+
+#include <list>
+
+#include "VideoCommon.h"
+
+inline bool addrRangesOverlap(u32 aLower, u32 aUpper, u32 bLower, u32 bUpper)
+{
+	return !((aLower >= bUpper) || (bLower >= aUpper));
+}
+
+struct XFBSourceBase
+{
+	virtual ~XFBSourceBase() {}
+
+	virtual void Draw(const MathUtil::Rectangle<float> &sourcerc,
+		const MathUtil::Rectangle<float> &drawrc) const = 0;
+
+	virtual void DecodeToTexture(u32 xfbAddr, u32 fbWidth, u32 fbHeight) = 0;
+
+	virtual void CopyEFB(float Gamma) = 0;
+
+	u32 srcAddr;
+	u32 srcWidth;
+	u32 srcHeight;
+
+	unsigned int texWidth;
+	unsigned int texHeight;
+
+	// TODO: only used by OGL
+	TargetRectangle sourceRc;
+};
+
+class FramebufferManagerBase
+{
+public:
+	enum
+	{
+		// There may be multiple XFBs in GameCube RAM. This is the maximum number to
+		// virtualize.
+		MAX_VIRTUAL_XFB = 8
+	};
+
+	FramebufferManagerBase();
+	virtual ~FramebufferManagerBase();
+
+	static void CopyToXFB(u32 xfbAddr, u32 fbWidth, u32 fbHeight, const EFBRectangle& sourceRc,float Gamma);
+	static const XFBSourceBase* const* GetXFBSource(u32 xfbAddr, u32 fbWidth, u32 fbHeight, u32 &xfbCount);
+
+	static void SetLastXfbWidth(unsigned int width) { s_last_xfb_width = width; }
+	static void SetLastXfbHeight(unsigned int height) { s_last_xfb_height = height; }
+	static unsigned int LastXfbWidth() { return s_last_xfb_width; }
+	static unsigned int LastXfbHeight() { return s_last_xfb_height; }
+
+	static int ScaleToVirtualXfbWidth(int x, unsigned int backbuffer_width);
+	static int ScaleToVirtualXfbHeight(int y, unsigned int backbuffer_height);
+
+protected:
+	struct VirtualXFB
+	{
+		VirtualXFB() : xfbSource(NULL) {}
+
+		// Address and size in GameCube RAM
+		u32 xfbAddr;
+		u32 xfbWidth;
+		u32 xfbHeight;
+
+		XFBSourceBase *xfbSource;
+	};
+
+	typedef std::list<VirtualXFB> VirtualXFBListType;
+
+private:
+	virtual XFBSourceBase* CreateXFBSource(unsigned int target_width, unsigned int target_height) = 0;
+	// TODO: figure out why OGL is different for this guy
+	virtual void GetTargetSize(unsigned int *width, unsigned int *height, const EFBRectangle& sourceRc) = 0;
+
+	static VirtualXFBListType::iterator FindVirtualXFB(u32 xfbAddr, u32 width, u32 height);
+
+	static void ReplaceVirtualXFB();
+
+	// TODO: merge these virtual funcs, they are nearly all the same
+	virtual void CopyToRealXFB(u32 xfbAddr, u32 fbWidth, u32 fbHeight, const EFBRectangle& sourceRc,float Gamma = 1.0f) = 0;
+	static void CopyToVirtualXFB(u32 xfbAddr, u32 fbWidth, u32 fbHeight, const EFBRectangle& sourceRc,float Gamma = 1.0f);
+
+	static const XFBSourceBase* const* GetRealXFBSource(u32 xfbAddr, u32 fbWidth, u32 fbHeight, u32 &xfbCount);
+	static const XFBSourceBase* const* GetVirtualXFBSource(u32 xfbAddr, u32 fbWidth, u32 fbHeight, u32 &xfbCount);
+
+	static XFBSourceBase *m_realXFBSource; // Only used in Real XFB mode
+	static VirtualXFBListType m_virtualXFBList; // Only used in Virtual XFB mode
+
+	static const XFBSourceBase* m_overlappingXFBArray[MAX_VIRTUAL_XFB];
+
+	static unsigned int s_last_xfb_width;
+	static unsigned int s_last_xfb_height;
+};
+
+extern FramebufferManagerBase *g_framebuffer_manager;
+
+#endif