dolphin/Source/Core/VideoCommon/FramebufferManagerBase.cpp

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2015-05-24 04:32:32 +00:00
// Copyright 2010 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "VideoCommon/FramebufferManagerBase.h"
#include "VideoCommon/RenderBase.h"
#include "VideoCommon/VideoConfig.h"
FramebufferManagerBase *g_framebuffer_manager;
XFBSourceBase *FramebufferManagerBase::m_realXFBSource; // Only used in Real XFB mode
FramebufferManagerBase::VirtualXFBListType FramebufferManagerBase::m_virtualXFBList; // Only used in Virtual XFB mode
const XFBSourceBase* FramebufferManagerBase::m_overlappingXFBArray[MAX_VIRTUAL_XFB];
unsigned int FramebufferManagerBase::s_last_xfb_width = 1;
unsigned int FramebufferManagerBase::s_last_xfb_height = 1;
unsigned int FramebufferManagerBase::m_EFBLayers = 1;
FramebufferManagerBase::FramebufferManagerBase()
{
m_realXFBSource = nullptr;
// can't hurt
memset(m_overlappingXFBArray, 0, sizeof(m_overlappingXFBArray));
}
FramebufferManagerBase::~FramebufferManagerBase()
{
for (VirtualXFB& vxfb : m_virtualXFBList)
{
delete vxfb.xfbSource;
}
m_virtualXFBList.clear();
delete m_realXFBSource;
}
const XFBSourceBase* const* FramebufferManagerBase::GetXFBSource(u32 xfbAddr, u32 fbWidth, u32 fbHeight, u32* xfbCountP)
{
if (!g_ActiveConfig.bUseXFB)
return nullptr;
if (g_ActiveConfig.bUseRealXFB)
return GetRealXFBSource(xfbAddr, fbWidth, fbHeight, xfbCountP);
else
return GetVirtualXFBSource(xfbAddr, fbWidth, fbHeight, xfbCountP);
}
const XFBSourceBase* const* FramebufferManagerBase::GetRealXFBSource(u32 xfbAddr, u32 fbWidth, u32 fbHeight, u32* xfbCountP)
{
*xfbCountP = 1;
// recreate if needed
if (m_realXFBSource && (m_realXFBSource->texWidth != fbWidth || m_realXFBSource->texHeight != fbHeight))
{
delete m_realXFBSource;
m_realXFBSource = nullptr;
}
if (!m_realXFBSource)
m_realXFBSource = g_framebuffer_manager->CreateXFBSource(fbWidth, fbHeight, 1);
m_realXFBSource->srcAddr = xfbAddr;
m_realXFBSource->srcWidth = MAX_XFB_WIDTH;
m_realXFBSource->srcHeight = MAX_XFB_HEIGHT;
m_realXFBSource->texWidth = fbWidth;
m_realXFBSource->texHeight = fbHeight;
// OpenGL texture coordinates originate at the lower left, which is why
// sourceRc.top = fbHeight and sourceRc.bottom = 0.
m_realXFBSource->sourceRc.left = 0;
m_realXFBSource->sourceRc.top = fbHeight;
m_realXFBSource->sourceRc.right = fbWidth;
m_realXFBSource->sourceRc.bottom = 0;
// Decode YUYV data from GameCube RAM
m_realXFBSource->DecodeToTexture(xfbAddr, fbWidth, fbHeight);
m_overlappingXFBArray[0] = m_realXFBSource;
return &m_overlappingXFBArray[0];
}
const XFBSourceBase* const* FramebufferManagerBase::GetVirtualXFBSource(u32 xfbAddr, u32 fbWidth, u32 fbHeight, u32* xfbCountP)
{
u32 xfbCount = 0;
if (m_virtualXFBList.empty()) // no Virtual XFBs available
return nullptr;
u32 srcLower = xfbAddr;
u32 srcUpper = xfbAddr + 2 * fbWidth * fbHeight;
VirtualXFBListType::reverse_iterator
it = m_virtualXFBList.rbegin(),
vlend = m_virtualXFBList.rend();
for (; it != vlend; ++it)
{
VirtualXFB* vxfb = &*it;
u32 dstLower = vxfb->xfbAddr;
u32 dstUpper = vxfb->xfbAddr + 2 * vxfb->xfbWidth * vxfb->xfbHeight;
if (AddressRangesOverlap(srcLower, srcUpper, dstLower, dstUpper))
{
m_overlappingXFBArray[xfbCount] = vxfb->xfbSource;
++xfbCount;
}
}
*xfbCountP = xfbCount;
return &m_overlappingXFBArray[0];
}
void FramebufferManagerBase::CopyToXFB(u32 xfbAddr, u32 fbWidth, u32 fbHeight, const EFBRectangle& sourceRc,float Gamma)
{
if (g_ActiveConfig.bUseRealXFB)
g_framebuffer_manager->CopyToRealXFB(xfbAddr, fbWidth, fbHeight, sourceRc,Gamma);
else
CopyToVirtualXFB(xfbAddr, fbWidth, fbHeight, sourceRc,Gamma);
}
void FramebufferManagerBase::CopyToVirtualXFB(u32 xfbAddr, u32 fbWidth, u32 fbHeight, const EFBRectangle& sourceRc,float Gamma)
{
VirtualXFBListType::iterator vxfb = FindVirtualXFB(xfbAddr, fbWidth, fbHeight);
if (m_virtualXFBList.end() == vxfb)
{
if (m_virtualXFBList.size() < MAX_VIRTUAL_XFB)
{
// create a new Virtual XFB and place it at the front of the list
m_virtualXFBList.emplace_front();
vxfb = m_virtualXFBList.begin();
}
else
{
// Replace the last virtual XFB
--vxfb;
}
}
//else // replace existing virtual XFB
// move this Virtual XFB to the front of the list.
if (m_virtualXFBList.begin() != vxfb)
m_virtualXFBList.splice(m_virtualXFBList.begin(), m_virtualXFBList, vxfb);
unsigned int target_width, target_height;
g_framebuffer_manager->GetTargetSize(&target_width, &target_height);
// recreate if needed
if (vxfb->xfbSource && (vxfb->xfbSource->texWidth != target_width || vxfb->xfbSource->texHeight != target_height))
{
delete vxfb->xfbSource;
vxfb->xfbSource = nullptr;
}
if (!vxfb->xfbSource)
{
vxfb->xfbSource = g_framebuffer_manager->CreateXFBSource(target_width, target_height, m_EFBLayers);
vxfb->xfbSource->texWidth = target_width;
vxfb->xfbSource->texHeight = target_height;
}
vxfb->xfbSource->srcAddr = vxfb->xfbAddr = xfbAddr;
vxfb->xfbSource->srcWidth = vxfb->xfbWidth = fbWidth;
vxfb->xfbSource->srcHeight = vxfb->xfbHeight = fbHeight;
vxfb->xfbSource->sourceRc = g_renderer->ConvertEFBRectangle(sourceRc);
// keep stale XFB data from being used
ReplaceVirtualXFB();
// Copy EFB data to XFB and restore render target again
vxfb->xfbSource->CopyEFB(Gamma);
}
FramebufferManagerBase::VirtualXFBListType::iterator FramebufferManagerBase::FindVirtualXFB(u32 xfbAddr, u32 width, u32 height)
{
const u32 srcLower = xfbAddr;
const u32 srcUpper = xfbAddr + 2 * width * height;
VirtualXFBListType::iterator it = m_virtualXFBList.begin();
for (; it != m_virtualXFBList.end(); ++it)
{
const u32 dstLower = it->xfbAddr;
const u32 dstUpper = it->xfbAddr + 2 * it->xfbWidth * it->xfbHeight;
if (dstLower >= srcLower && dstUpper <= srcUpper)
break;
}
return it;
}
void FramebufferManagerBase::ReplaceVirtualXFB()
{
VirtualXFBListType::iterator it = m_virtualXFBList.begin();
const s32 srcLower = it->xfbAddr;
const s32 srcUpper = it->xfbAddr + 2 * it->xfbWidth * it->xfbHeight;
const s32 lineSize = 2 * it->xfbWidth;
++it;
for (; it != m_virtualXFBList.end(); ++it)
{
s32 dstLower = it->xfbAddr;
s32 dstUpper = it->xfbAddr + 2 * it->xfbWidth * it->xfbHeight;
if (dstLower >= srcLower && dstUpper <= srcUpper)
{
// Invalidate the data
it->xfbAddr = 0;
it->xfbHeight = 0;
it->xfbWidth = 0;
}
else if (AddressRangesOverlap(srcLower, srcUpper, dstLower, dstUpper))
{
s32 upperOverlap = (srcUpper - dstLower) / lineSize;
s32 lowerOverlap = (dstUpper - srcLower) / lineSize;
if (upperOverlap > 0 && lowerOverlap < 0)
{
it->xfbAddr += lineSize * upperOverlap;
it->xfbHeight -= upperOverlap;
}
else if (lowerOverlap > 0)
{
it->xfbHeight -= lowerOverlap;
}
}
}
}
int FramebufferManagerBase::ScaleToVirtualXfbWidth(int x)
{
if (g_ActiveConfig.RealXFBEnabled())
return x;
return x * (int)Renderer::GetTargetRectangle().GetWidth() / (int)FramebufferManagerBase::LastXfbWidth();
}
int FramebufferManagerBase::ScaleToVirtualXfbHeight(int y)
{
if (g_ActiveConfig.RealXFBEnabled())
return y;
return y * (int)Renderer::GetTargetRectangle().GetHeight() / (int)FramebufferManagerBase::LastXfbHeight();
}