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dolphin/Source/Core/VideoCommon/Src/RenderBase.cpp

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// Copyright (C) 2003 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
// ---------------------------------------------------------------------------------------------
// GC graphics pipeline
// ---------------------------------------------------------------------------------------------
// 3d commands are issued through the fifo. The gpu draws to the 2MB EFB.
// The efb can be copied back into ram in two forms: as textures or as XFB.
// The XFB is the region in RAM that the VI chip scans out to the television.
// So, after all rendering to EFB is done, the image is copied into one of two XFBs in RAM.
// Next frame, that one is scanned out and the other one gets the copy. = double buffering.
// ---------------------------------------------------------------------------------------------
#include "RenderBase.h"
#include "Atomic.h"
#include "BPMemory.h"
#include "CommandProcessor.h"
#include "CPMemory.h"
#include "MainBase.h"
#include "VideoConfig.h"
#include "FramebufferManagerBase.h"
#include "TextureCacheBase.h"
#include "Fifo.h"
#include "OpcodeDecoding.h"
#include "Timer.h"
#include "StringUtil.h"
#include "Host.h"
#include "XFMemory.h"
#include "FifoPlayer/FifoRecorder.h"
#include <cmath>
#include <string>
// TODO: Move these out of here.
int frameCount;
int OSDChoice, OSDTime;
Renderer *g_renderer = NULL;
bool s_bLastFrameDumped = false;
std::mutex Renderer::s_criticalScreenshot;
std::string Renderer::s_sScreenshotName;
volatile bool Renderer::s_bScreenshot;
// The framebuffer size
int Renderer::s_target_width;
int Renderer::s_target_height;
// The custom resolution
int Renderer::s_Fulltarget_width;
int Renderer::s_Fulltarget_height;
// TODO: Add functionality to reinit all the render targets when the window is resized.
int Renderer::s_backbuffer_width;
int Renderer::s_backbuffer_height;
// ratio of backbuffer size and render area size
float Renderer::xScale;
float Renderer::yScale;
unsigned int Renderer::s_XFB_width;
unsigned int Renderer::s_XFB_height;
int Renderer::s_LastEFBScale;
bool Renderer::s_skipSwap;
bool Renderer::XFBWrited;
bool Renderer::s_EnableDLCachingAfterRecording;
unsigned int Renderer::prev_efb_format = (unsigned int)-1;
Renderer::Renderer()
{
UpdateActiveConfig();
}
Renderer::~Renderer()
{
// invalidate previous efb format
prev_efb_format = (unsigned int)-1;
}
void Renderer::RenderToXFB(u32 xfbAddr, u32 fbWidth, u32 fbHeight, const EFBRectangle& sourceRc, float Gamma)
{
CheckFifoRecording();
if (!fbWidth || !fbHeight)
return;
s_skipSwap = g_bSkipCurrentFrame;
VideoFifo_CheckEFBAccess();
VideoFifo_CheckSwapRequestAt(xfbAddr, fbWidth, fbHeight);
XFBWrited = true;
// XXX: Without the VI, how would we know what kind of field this is? So
// just use progressive.
if (g_ActiveConfig.bUseXFB)
{
FramebufferManagerBase::CopyToXFB(xfbAddr, fbWidth, fbHeight, sourceRc,Gamma);
}
else
{
g_renderer->Swap(xfbAddr, FIELD_PROGRESSIVE, fbWidth, fbHeight,sourceRc,Gamma);
Common::AtomicStoreRelease(s_swapRequested, false);
}
if (TextureCache::DeferredInvalidate)
{
TextureCache::Invalidate(false);
}
}
void Renderer::CalculateTargetScale(int x, int y, int &scaledX, int &scaledY)
{
switch (g_ActiveConfig.iEFBScale)
{
case 3: // 2x
scaledX = x * 2;
scaledY = y * 2;
break;
case 4: // 3x
scaledX = x * 3;
scaledY = y * 3;
break;
case 5: // 0.75x
scaledX = (x * 3) / 4;
scaledY = (y * 3) / 4;
break;
case 6: // 0.5x
scaledX = x / 2;
scaledY = y / 2;
break;
case 7: // 0.375x
scaledX = (x * 3) / 8;
scaledY = (y * 3) / 8;
break;
default:
scaledX = x;
scaledY = y;
};
}
// return true if target size changed
bool Renderer::CalculateTargetSize(int multiplier)
{
int newEFBWidth, newEFBHeight;
switch (s_LastEFBScale)
{
case 0: // fractional
newEFBWidth = (int)(EFB_WIDTH * xScale);
newEFBHeight = (int)(EFB_HEIGHT * yScale);
break;
case 1: // integral
newEFBWidth = EFB_WIDTH * (int)ceilf(xScale);
newEFBHeight = EFB_HEIGHT * (int)ceilf(yScale);
break;
default:
CalculateTargetScale(EFB_WIDTH, EFB_HEIGHT, newEFBWidth, newEFBHeight);
}
newEFBWidth *= multiplier;
newEFBHeight *= multiplier;
s_Fulltarget_width = newEFBWidth;
s_Fulltarget_height = newEFBHeight;
if (newEFBWidth != s_target_width || newEFBHeight != s_target_height)
{
s_target_width = newEFBWidth;
s_target_height = newEFBHeight;
return true;
}
return false;
}
void Renderer::SetScreenshot(const char *filename)
{
std::lock_guard<std::mutex> lk(s_criticalScreenshot);
s_sScreenshotName = filename;
s_bScreenshot = true;
}
// Create On-Screen-Messages
void Renderer::DrawDebugText()
{
// OSD Menu messages
if (g_ActiveConfig.bOSDHotKey)
{
if (OSDChoice > 0)
{
OSDTime = Common::Timer::GetTimeMs() + 3000;
OSDChoice = -OSDChoice;
}
if ((u32)OSDTime > Common::Timer::GetTimeMs())
{
const char* res_text = "";
switch (g_ActiveConfig.iEFBScale)
{
case 0:
res_text = "Auto (fractional)";
break;
case 1:
res_text = "Auto (integral)";
break;
case 2:
res_text = "Native";
break;
case 3:
res_text = "2x";
break;
case 4:
res_text = "3x";
break;
case 5:
res_text = "0.75x";
break;
case 6:
res_text = "0.5x";
break;
case 7:
res_text = "0.375x";
break;
}
const char* ar_text = "";
switch(g_ActiveConfig.iAspectRatio)
{
case ASPECT_AUTO:
ar_text = "Auto";
break;
case ASPECT_FORCE_16_9:
ar_text = "16:9";
break;
case ASPECT_FORCE_4_3:
ar_text = "4:3";
break;
case ASPECT_STRETCH:
ar_text = "Stretch";
break;
}
const char* const efbcopy_text = g_ActiveConfig.bEFBCopyEnable ?
(g_ActiveConfig.bCopyEFBToTexture ? "to Texture" : "to RAM") : "Disabled";
// The rows
const std::string lines[] =
{
std::string("3: Internal Resolution: ") + res_text,
std::string("4: Aspect Ratio: ") + ar_text + (g_ActiveConfig.bCrop ? " (crop)" : ""),
std::string("5: Copy EFB: ") + efbcopy_text,
std::string("6: Fog: ") + (g_ActiveConfig.bDisableFog ? "Disabled" : "Enabled"),
std::string("7: Material Lighting: ") + (g_ActiveConfig.bDisableLighting ? "Disabled" : "Enabled"),
};
enum { lines_count = sizeof(lines)/sizeof(*lines) };
std::string final_yellow, final_cyan;
// If there is more text than this we will have a collision
if (g_ActiveConfig.bShowFPS)
{
final_yellow = final_cyan = "\n\n";
}
// The latest changed setting in yellow
for (int i = 0; i != lines_count; ++i)
{
if (OSDChoice == -i - 1)
final_yellow += lines[i];
final_yellow += '\n';
}
// The other settings in cyan
for (int i = 0; i != lines_count; ++i)
{
if (OSDChoice != -i - 1)
final_cyan += lines[i];
final_cyan += '\n';
}
// Render a shadow
g_renderer->RenderText(final_cyan.c_str(), 21, 21, 0xDD000000);
g_renderer->RenderText(final_yellow.c_str(), 21, 21, 0xDD000000);
//and then the text
g_renderer->RenderText(final_cyan.c_str(), 20, 20, 0xFF00FFFF);
g_renderer->RenderText(final_yellow.c_str(), 20, 20, 0xFFFFFF00);
}
}
}
void Renderer::CalculateXYScale(const TargetRectangle& dst_rect)
{
if (g_ActiveConfig.bUseXFB && g_ActiveConfig.bUseRealXFB)
{
xScale = 1.0f;
yScale = 1.0f;
}
else
{
if (g_ActiveConfig.b3DVision)
{
// This works, yet the version in the else doesn't. No idea why.
xScale = (float)(s_backbuffer_width-1) / (float)(s_XFB_width-1);
yScale = (float)(s_backbuffer_height-1) / (float)(s_XFB_height-1);
}
else
{
xScale = (float)(dst_rect.right - dst_rect.left - 1) / (float)(s_XFB_width-1);
yScale = (float)(dst_rect.bottom - dst_rect.top - 1) / (float)(s_XFB_height-1);
}
}
}
void Renderer::SetWindowSize(int width, int height)
{
if (width < 1)
width = 1;
if (height < 1)
height = 1;
// Scale the window size by the EFB scale.
CalculateTargetScale(width, height, width, height);
Host_RequestRenderWindowSize(width, height);
}
void Renderer::CheckFifoRecording()
{
bool wasRecording = g_bRecordFifoData;
g_bRecordFifoData = FifoRecorder::GetInstance().IsRecording();
if (g_bRecordFifoData)
{
if (!wasRecording)
{
// Disable display list caching because the recorder does not handle it
s_EnableDLCachingAfterRecording = g_ActiveConfig.bDlistCachingEnable;
g_ActiveConfig.bDlistCachingEnable = false;
RecordVideoMemory();
}
FifoRecorder::GetInstance().EndFrame(CommandProcessor::fifo.CPBase, CommandProcessor::fifo.CPEnd);
}
else if (wasRecording)
{
g_ActiveConfig.bDlistCachingEnable = s_EnableDLCachingAfterRecording;
}
}
void Renderer::RecordVideoMemory()
{
u32 *bpMem = (u32*)&bpmem;
u32 cpMem[256];
u32 *xfMem = (u32*)xfmem;
u32 *xfRegs = (u32*)&xfregs;
memset(cpMem, 0, 256 * 4);
FillCPMemoryArray(cpMem);
FifoRecorder::GetInstance().SetVideoMemory(bpMem, cpMem, xfMem, xfRegs, sizeof(XFRegisters) / 4);
}
void UpdateViewport()
{
g_renderer->UpdateViewport();
}
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