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// Copyright 2010 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <list>
#include <memory>
#include <utility>
#include "Common/CommonTypes.h"
#include "VideoCommon/VideoCommon.h"
inline bool AddressRangesOverlap(u32 aLower, u32 aUpper, u32 bLower, u32 bUpper)
{
return !((aLower >= bUpper) || (bLower >= aUpper));
}
struct XFBSourceBase
{
virtual ~XFBSourceBase() {}
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 fbStride, 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, const TargetRectangle& target_rectangle);
static int ScaleToVirtualXfbHeight(int y, const TargetRectangle& target_rectangle);
static unsigned int GetEFBLayers() { return m_EFBLayers; }
virtual std::pair<u32, u32> GetTargetSize() const = 0;
protected:
struct VirtualXFB
{
VirtualXFB() {}
// Address and size in GameCube RAM
u32 xfbAddr = 0;
u32 xfbWidth = 0;
u32 xfbHeight = 0;
std::unique_ptr<XFBSourceBase> xfbSource;
};
typedef std::list<VirtualXFB> VirtualXFBListType;
static unsigned int m_EFBLayers;
private:
virtual std::unique_ptr<XFBSourceBase>
CreateXFBSource(unsigned int target_width, unsigned int target_height, unsigned int layers) = 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 fbStride, 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 std::unique_ptr<XFBSourceBase> m_realXFBSource; // Only used in Real XFB mode
static VirtualXFBListType m_virtualXFBList; // Only used in Virtual XFB mode
static std::array<const XFBSourceBase*, MAX_VIRTUAL_XFB> m_overlappingXFBArray;
static unsigned int s_last_xfb_width;
static unsigned int s_last_xfb_height;
};
extern std::unique_ptr<FramebufferManagerBase> g_framebuffer_manager;
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