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snes9x/win32/CDirectDraw.cpp

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/*****************************************************************************\
Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
This file is licensed under the Snes9x License.
For further information, consult the LICENSE file in the root directory.
\*****************************************************************************/
#if DIRECTDRAW_SUPPORT
#ifdef _WIN64
#pragma comment( lib, "ddraw/ddraw_x64" )
#else
#pragma comment( lib, "ddraw/ddraw_x86" )
#endif
// CDirectDraw.cpp: implementation of the CDirectDraw class.
//
//////////////////////////////////////////////////////////////////////
#include "wsnes9x.h"
#include "../snes9x.h"
#include "../gfx.h"
#include "CDirectDraw.h"
#include "win32_display.h"
#include "../filter/hq2x.h"
#include "../filter/2xsai.h"
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
CDirectDraw::CDirectDraw()
{
lpDD = NULL;
lpDDClipper = NULL;
lpDDPalette = NULL;
lpDDSPrimary2 = NULL;
lpDDSOffScreen2 = NULL;
width = height = -1;
depth = -1;
doubleBuffered = false;
dDinitialized = false;
convertBuffer = NULL;
filterScale = 0;
}
CDirectDraw::~CDirectDraw()
{
DeInitialize();
}
bool CDirectDraw::Initialize (HWND hWnd)
{
if(dDinitialized)
return true;
dErr = DirectDrawCreate (NULL, &lpDD, NULL);
if(FAILED(dErr))
return false;
dErr = lpDD -> CreateClipper (0, &lpDDClipper, NULL);
if(FAILED(dErr))
return false;
dErr = lpDDClipper->SetHWnd (0, hWnd);
if(FAILED(dErr))
return false;
if (!SetDisplayMode (GUI.FullscreenMode.width, GUI.FullscreenMode.height, max(GetFilterScale(GUI.Scale), GetFilterScale(GUI.ScaleHiRes)), GUI.FullscreenMode.depth, GUI.FullscreenMode.rate,
TRUE, GUI.DoubleBuffered))
{
MessageBox( GUI.hWnd, Languages[ GUI.Language].errModeDD, TEXT("Snes9x - DirectDraw(7)"), MB_OK | MB_ICONSTOP);
return (false);
}
dDinitialized = true;
return (true);
}
void CDirectDraw::DeInitialize()
{
if (lpDD != NULL)
{
if (lpDDSPrimary2 != NULL)
{
lpDDSPrimary2->Release();
lpDDSPrimary2 = NULL;
}
if (lpDDSOffScreen2 != NULL)
{
lpDDSOffScreen2->PageUnlock(0);
lpDDSOffScreen2->Release();
lpDDSOffScreen2 = NULL;
}
if (lpDDClipper != NULL)
{
lpDDClipper->Release();
lpDDClipper = NULL;
}
if (lpDDPalette != NULL)
{
lpDDPalette->Release();
lpDDPalette = NULL;
}
lpDD->Release();
lpDD = NULL;
}
if(convertBuffer) {
delete [] convertBuffer;
convertBuffer = NULL;
}
filterScale = 0;
dDinitialized = false;
}
bool CDirectDraw::SetDisplayMode(
int pWidth, int pHeight, int pScale,
char pDepth, int pRefreshRate, bool pWindowed, bool pDoubleBuffered)
{
if(pScale < 2) pScale = 2;
static bool BLOCK = false;
DDSURFACEDESC ddsd;
PALETTEENTRY PaletteEntries [256];
if (BLOCK)
return (false);
BLOCK = true;
if (pWindowed)
pDoubleBuffered = false;
if (pDepth == 0)
pDepth = depth;
if (lpDDSPrimary2 != NULL)
{
lpDDSPrimary2->Release();
lpDDSPrimary2 = NULL;
}
if (lpDDSOffScreen2 != NULL)
{
lpDDSOffScreen2->PageUnlock(0);
lpDDSOffScreen2->Release();
lpDDSOffScreen2 = NULL;
}
if( lpDDPalette != NULL)
{
lpDDPalette->Release();
lpDDPalette = NULL;
}
lpDD->FlipToGDISurface();
if (pWindowed)
{
lpDD->RestoreDisplayMode();
ZeroMemory (&ddsd, sizeof (ddsd));
ddsd.dwSize = sizeof (ddsd);
ddsd.dwFlags = DDSD_PIXELFORMAT;
dErr = lpDD->GetDisplayMode (&ddsd);
if (FAILED(dErr))
pDepth = 8;
else
{
if (ddsd.ddpfPixelFormat.dwFlags&DDPF_RGB)
pDepth = (char) ddsd.ddpfPixelFormat.dwRGBBitCount;
else
pDepth = 8;
}
if (pDepth == 8)
dErr = lpDD->SetCooperativeLevel (GUI.hWnd, DDSCL_FULLSCREEN|
DDSCL_EXCLUSIVE|DDSCL_ALLOWREBOOT);
else
dErr = lpDD->SetCooperativeLevel (GUI.hWnd, DDSCL_NORMAL|DDSCL_ALLOWREBOOT);
}
else
{
dErr = lpDD->SetCooperativeLevel (GUI.hWnd, DDSCL_EXCLUSIVE|DDSCL_FULLSCREEN|DDSCL_ALLOWREBOOT);
// XXX: TODO: use pRefreshRate!
dErr = lpDD->SetDisplayMode (pWidth, pHeight, pDepth);
}
if (FAILED(dErr))
{
BLOCK = false;
return false;
}
ZeroMemory (&ddsd, sizeof (ddsd));
ddsd.dwSize = sizeof (ddsd);
ddsd.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH;
if(Settings.BilinearFilter)
{
ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN | DDSCAPS_VIDEOMEMORY | (GUI.LocalVidMem ? DDSCAPS_LOCALVIDMEM : DDSCAPS_NONLOCALVIDMEM);
}
else
{
ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN | DDSCAPS_SYSTEMMEMORY;
}
ddsd.dwWidth = SNES_WIDTH * pScale;
ddsd.dwHeight = SNES_HEIGHT_EXTENDED * pScale;
LPDIRECTDRAWSURFACE lpDDSOffScreen;
if (FAILED(lpDD->CreateSurface (&ddsd, &lpDDSOffScreen, NULL)))
{
ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN | DDSCAPS_VIDEOMEMORY | (GUI.LocalVidMem ? DDSCAPS_NONLOCALVIDMEM : DDSCAPS_LOCALVIDMEM);
if(!Settings.BilinearFilter || FAILED(lpDD->CreateSurface (&ddsd, &lpDDSOffScreen, NULL)))
{
ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN | DDSCAPS_SYSTEMMEMORY;
if(!Settings.BilinearFilter || FAILED(lpDD->CreateSurface (&ddsd, &lpDDSOffScreen, NULL)))
{
BLOCK = false;
return (false);
}
}
}
if (FAILED (lpDDSOffScreen->QueryInterface (IID_IDirectDrawSurface2,
(void **)&lpDDSOffScreen2)))
{
lpDDSOffScreen->Release();
BLOCK = false;
return (false);
}
lpDDSOffScreen2->PageLock(0);
lpDDSOffScreen->Release();
ZeroMemory (&ddsd, sizeof (ddsd));
if (pDoubleBuffered)
{
ddsd.dwSize = sizeof( ddsd);
ddsd.dwFlags = DDSD_CAPS | DDSD_BACKBUFFERCOUNT;
ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE | DDSCAPS_COMPLEX | DDSCAPS_FLIP;
GUI.NumFlipFrames = 3;
ddsd.dwBackBufferCount = 2;
}
else
{
GUI.NumFlipFrames = 1;
ddsd.dwSize = sizeof (ddsd);
ddsd.dwFlags = DDSD_CAPS;
ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
}
LPDIRECTDRAWSURFACE lpDDSPrimary;
dErr = lpDD->CreateSurface (&ddsd, &lpDDSPrimary, NULL);
if( FAILED(dErr) )
{
if (pDoubleBuffered)
{
ddsd.dwBackBufferCount = 1;
GUI.NumFlipFrames = 2;
if (FAILED(dErr = lpDD->CreateSurface (&ddsd, &lpDDSPrimary, NULL)))
{
ddsd.dwFlags = DDSD_CAPS;
ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
pDoubleBuffered = false;
GUI.NumFlipFrames = 1;
dErr = lpDD->CreateSurface (&ddsd, &lpDDSPrimary, NULL);
}
}
if (FAILED(dErr))
{
BLOCK = false;
lpDDSOffScreen2->PageUnlock(0);
lpDDSOffScreen2->Release();
lpDDSOffScreen2 = NULL;
return (false);
}
}
ZeroMemory (&DDPixelFormat, sizeof (DDPixelFormat));
DDPixelFormat.dwSize = sizeof (DDPixelFormat);
lpDDSPrimary->GetPixelFormat (&DDPixelFormat);
clipped = true;
if((!pWindowed && pDoubleBuffered) || FAILED(lpDDSPrimary->SetClipper( lpDDClipper)))
clipped = false;
if (FAILED (lpDDSPrimary->QueryInterface (IID_IDirectDrawSurface2, (void **)&lpDDSPrimary2)))
{
BLOCK = false;
lpDDSPrimary->Release();
lpDDSPrimary = NULL;
return (FALSE);
}
lpDDSPrimary->Release();
lpDDSPrimary = NULL;
if((!pWindowed && pDoubleBuffered) || FAILED(lpDDSPrimary2->SetClipper( lpDDClipper)))
clipped = false;
if (pDepth == 8)
{
dErr = lpDD->CreatePalette (DDPCAPS_8BIT | DDPCAPS_ALLOW256,
PaletteEntries, &lpDDPalette, NULL);
if( FAILED(dErr))
{
lpDDPalette = NULL;
BLOCK = false;
return false;
}
}
depth = pDepth;
height = pHeight;
width = pWidth;
doubleBuffered = pDoubleBuffered;
BLOCK = false;
return (true);
}
void CDirectDraw::GetPixelFormat ()
{
if (lpDDSPrimary2)
{
ZeroMemory (&DDPixelFormat, sizeof (DDPixelFormat));
DDPixelFormat.dwSize = sizeof (DDPixelFormat);
lpDDSPrimary2->GetPixelFormat (&DDPixelFormat);
}
}
static bool LockSurface2 (LPDIRECTDRAWSURFACE2 lpDDSurface, SSurface *lpSurface)
{
DDSURFACEDESC ddsd;
HRESULT hResult;
int retry;
ddsd.dwSize = sizeof (ddsd);
retry = 0;
while (true)
{
hResult = lpDDSurface->Lock( NULL, &ddsd, DDLOCK_WAIT, NULL);
if( hResult == DD_OK)
{
lpSurface->Width = ddsd.dwWidth;
lpSurface->Height = ddsd.dwHeight;
lpSurface->Pitch = ddsd.lPitch;
lpSurface->Surface = (unsigned char *)ddsd.lpSurface;
return (true);
}
if (hResult == DDERR_SURFACELOST)
{
retry++;
if (retry > 5)
return (false);
hResult = lpDDSurface->Restore();
if (hResult != DD_OK)
return (false);
continue;
}
if (hResult != DDERR_WASSTILLDRAWING)
return (false);
}
}
void CDirectDraw::Render(SSurface Src)
{
LPDIRECTDRAWSURFACE2 lpDDSurface2 = NULL;
LPDIRECTDRAWSURFACE2 pDDSurface = NULL;
SSurface Dst;
RECT srcRect;
RECT dstRect = { 0, 512, 0, 448 };
DDSCAPS caps;
unsigned int newFilterScale;
if(!dDinitialized) return;
memset(&caps, 0,sizeof(DDSCAPS));
caps.dwCaps = DDSCAPS_BACKBUFFER;
if (lpDDSPrimary2->GetAttachedSurface (&caps, &pDDSurface) != DD_OK ||
pDDSurface == NULL)
{
lpDDSurface2 = lpDDSPrimary2;
}
else
lpDDSurface2 = pDDSurface;
lpDDSurface2 = lpDDSOffScreen2;
if (!LockSurface2 (lpDDSurface2, &Dst))
return;
if (!GUI.DepthConverted)
{
SSurface tmp;
newFilterScale = max(2,max(GetFilterScale(GUI.ScaleHiRes),GetFilterScale(GUI.Scale)));
if(newFilterScale!=filterScale) {
if(convertBuffer)
delete [] convertBuffer;
filterScale = newFilterScale;
convertBuffer = new unsigned char[SNES_WIDTH * sizeof(uint16) * SNES_HEIGHT_EXTENDED * sizeof(uint16) *filterScale*filterScale]();
}
tmp.Surface = convertBuffer;
if(CurrentScale == FILTER_NONE) {
tmp.Pitch = Src.Pitch;
tmp.Width = Src.Width;
tmp.Height = Src.Height;
} else {
tmp.Pitch = Dst.Pitch;
tmp.Width = Dst.Width;
tmp.Height = Dst.Height;
}
RenderMethod (Src, tmp, &srcRect);
ConvertDepth (&tmp, &Dst, &srcRect);
}
else
{
RenderMethod (Src, Dst, &srcRect);
}
RECT lastRect = SizeHistory [GUI.FlipCounter % GUI.NumFlipFrames];
POINT p;
if (GUI.Stretch)
{
p.x = p.y = 0;
ClientToScreen (GUI.hWnd, &p);
GetClientRect (GUI.hWnd, &dstRect);
// dstRect.bottom = int(double(dstRect.bottom) * double(239.0 / 240.0));
if(GUI.AspectRatio)
{
int width = dstRect.right - dstRect.left;
int height = dstRect.bottom - dstRect.top;
int oldWidth = GUI.AspectWidth;
int oldHeight = Settings.ShowOverscan ? SNES_HEIGHT_EXTENDED : SNES_HEIGHT;
int newWidth, newHeight;
if(oldWidth * height > oldHeight * width)
{
newWidth = width;
newHeight = oldHeight*width/oldWidth;
}
else
{
newWidth = oldWidth*height/oldHeight;
newHeight = height;
}
int xOffset = (width - newWidth)/2;
int yOffset = (height - newHeight)/2;
dstRect.right = dstRect.left + newWidth;
dstRect.bottom = dstRect.top + newHeight;
OffsetRect(&dstRect, p.x + xOffset, p.y + yOffset);
}
else
{
OffsetRect(&dstRect, p.x, p.y);
}
}
else
{
GetClientRect (GUI.hWnd, &dstRect);
int width = srcRect.right - srcRect.left;
int height = srcRect.bottom - srcRect.top;
//if (GUI.Scale == 1)
//{
// width = MAX_SNES_WIDTH;
// if (height < 240)
// height *= 2;
//}
p.x = ((dstRect.right - dstRect.left) - width) >> 1;
p.y = ((dstRect.bottom - dstRect.top) - height) >> 1;
if(p.y < 0) p.y = 0;
if(p.x < 0) p.x = 0;
ClientToScreen (GUI.hWnd, &p);
dstRect.top = p.y;
dstRect.left = p.x;
dstRect.bottom = dstRect.top + height;
dstRect.right = dstRect.left + width;
}
lpDDSurface2->Unlock (Dst.Surface);
memset(&caps, 0,sizeof(DDSCAPS));
caps.dwCaps = DDSCAPS_BACKBUFFER;
if (lpDDSPrimary2->GetAttachedSurface (&caps, &pDDSurface) != DD_OK ||
pDDSurface == NULL)
{
lpDDSurface2 = lpDDSPrimary2;
}
else
lpDDSurface2 = pDDSurface;
// actually draw it onto the screen (unless in fullscreen mode; see UpdateBackBuffer() for that)
while (lpDDSurface2->Blt (&dstRect, lpDDSOffScreen2, &srcRect, DDBLT_WAIT, NULL) == DDERR_SURFACELOST)
lpDDSurface2->Restore ();
RECT rect;
DDBLTFX fx;
memset (&fx, 0, sizeof (fx));
fx.dwSize = sizeof (fx);
if (GUI.FlipCounter >= GUI.NumFlipFrames)
{
if (lastRect.top < dstRect.top)
{
rect.top = lastRect.top;
rect.bottom = dstRect.top;
rect.left = min(lastRect.left, dstRect.left);
rect.right = max(lastRect.right, dstRect.right);
lpDDSurface2->Blt (&rect, NULL, &rect,
DDBLT_WAIT | DDBLT_COLORFILL, &fx);
}
if (lastRect.bottom > dstRect.bottom)
{
rect.left = min(lastRect.left, dstRect.left);
rect.right = max(lastRect.right, dstRect.right);
rect.top = dstRect.bottom;
rect.bottom = lastRect.bottom;
lpDDSurface2->Blt (&rect, NULL, &rect,
DDBLT_WAIT | DDBLT_COLORFILL, &fx);
}
if (lastRect.left < dstRect.left)
{
rect.left = lastRect.left;
rect.right = dstRect.left;
rect.top = dstRect.top;
rect.bottom = dstRect.bottom;
lpDDSurface2->Blt (&rect, NULL, &rect,
DDBLT_WAIT | DDBLT_COLORFILL, &fx);
}
if (lastRect.right > dstRect.right)
{
rect.left = dstRect.right;
rect.right = lastRect.right;
rect.top = dstRect.top;
rect.bottom = dstRect.bottom;
lpDDSurface2->Blt (&rect, NULL, &rect,
DDBLT_WAIT | DDBLT_COLORFILL, &fx);
}
}
if(GUI.Vsync) {
lpDD->WaitForVerticalBlank(DDWAITVB_BLOCKBEGIN,NULL);
}
lpDDSPrimary2->Flip (NULL, GUI.Vsync?DDFLIP_WAIT:DDFLIP_NOVSYNC);
SizeHistory [GUI.FlipCounter % GUI.NumFlipFrames] = dstRect;
}
bool CDirectDraw::ApplyDisplayChanges(void)
{
return SetDisplayMode (GUI.FullscreenMode.width, GUI.FullscreenMode.height, max(GetFilterScale(GUI.Scale), GetFilterScale(GUI.ScaleHiRes)), GUI.FullscreenMode.depth, GUI.FullscreenMode.rate,
!GUI.FullScreen, GUI.DoubleBuffered);
}
bool CDirectDraw::ChangeRenderSize(unsigned int newWidth, unsigned int newHeight)
{
return true;
}
bool CDirectDraw::SetFullscreen(bool fullscreen)
{
if (!SetDisplayMode (GUI.FullscreenMode.width, GUI.FullscreenMode.height, max(GetFilterScale(GUI.Scale), GetFilterScale(GUI.ScaleHiRes)), GUI.FullscreenMode.depth, GUI.FullscreenMode.rate, !fullscreen, GUI.DoubleBuffered))
{
MessageBox( GUI.hWnd, Languages[ GUI.Language].errModeDD, TEXT("Snes9x - DirectDraw(2)"), MB_OK | MB_ICONSTOP);
return false;
}
return true;
}
int ffs (uint32 mask)
{
int m = 0;
if (mask)
{
while (!(mask & (1 << m)))
m++;
return (m);
}
return (0);
}
void CDirectDraw::SetSnes9xColorFormat()
{
GUI.ScreenDepth = DDPixelFormat.dwRGBBitCount;
if (GUI.ScreenDepth == 15)
GUI.ScreenDepth = 16;
GUI.RedShift = ffs (DDPixelFormat.dwRBitMask);
GUI.GreenShift = ffs (DDPixelFormat.dwGBitMask);
GUI.BlueShift = ffs (DDPixelFormat.dwBBitMask);
if ((GUI.ScreenDepth == 24 || GUI.ScreenDepth == 32))
GUI.NeedDepthConvert = TRUE;
GUI.DepthConverted = !GUI.NeedDepthConvert;
if ((GUI.ScreenDepth == 24 || GUI.ScreenDepth == 32))
{
GUI.RedShift += 3;
GUI.GreenShift += 3;
GUI.BlueShift += 3;
}
S9xBlit2xSaIFilterInit();
S9xBlitHQ2xFilterInit();
}
HRESULT CALLBACK EnumModesCallback( LPDDSURFACEDESC lpDDSurfaceDesc, LPVOID lpContext)
{
dMode curmode;
std::vector<dMode> *modeVector=(std::vector<dMode> *)lpContext;
HWND hDlg = (HWND)lpContext;
if((lpDDSurfaceDesc->ddpfPixelFormat.dwRGBBitCount != 15 &&
lpDDSurfaceDesc->ddpfPixelFormat.dwRGBBitCount != 16 &&
lpDDSurfaceDesc->ddpfPixelFormat.dwRGBBitCount != 32) ||
(lpDDSurfaceDesc->dwWidth < SNES_WIDTH ||
lpDDSurfaceDesc->dwHeight < SNES_HEIGHT_EXTENDED))
{
// let them muck with the .cfg file if they really want to set such a poor display mode
return DDENUMRET_OK; // keep going without adding mode to list
}
curmode.width=lpDDSurfaceDesc->dwWidth;
curmode.height=lpDDSurfaceDesc->dwHeight;
curmode.depth=lpDDSurfaceDesc->ddpfPixelFormat.dwRGBBitCount;
curmode.rate=lpDDSurfaceDesc->dwRefreshRate;
modeVector->push_back(curmode);
return DDENUMRET_OK;
}
void CDirectDraw::EnumModes(std::vector<dMode> *modeVector)
{
if(!dDinitialized)
return;
lpDD->EnumDisplayModes(DDEDM_REFRESHRATES,NULL,(void *)modeVector,(LPDDENUMMODESCALLBACK)EnumModesCallback);
}
#endif
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