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481bf0647f
snes9x/win32/win32_display.cpp
OV2 481bf0647f Win32: rework hi-res blending 
Only blend on filters that do not blend themself.
2011-03-02 23:13:02 +01:00

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/***********************************************************************************
Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
(c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com),
Jerremy Koot (jkoot@snes9x.com)
(c) Copyright 2002 - 2004 Matthew Kendora
(c) Copyright 2002 - 2005 Peter Bortas (peter@bortas.org)
(c) Copyright 2004 - 2005 Joel Yliluoma (http://iki.fi/bisqwit/)
(c) Copyright 2001 - 2006 John Weidman (jweidman@slip.net)
(c) Copyright 2002 - 2006 funkyass (funkyass@spam.shaw.ca),
Kris Bleakley (codeviolation@hotmail.com)
(c) Copyright 2002 - 2010 Brad Jorsch (anomie@users.sourceforge.net),
Nach (n-a-c-h@users.sourceforge.net),
zones (kasumitokoduck@yahoo.com)
(c) Copyright 2006 - 2007 nitsuja
(c) Copyright 2009 - 2010 BearOso,
OV2
BS-X C emulator code
(c) Copyright 2005 - 2006 Dreamer Nom,
zones
C4 x86 assembler and some C emulation code
(c) Copyright 2000 - 2003 _Demo_ (_demo_@zsnes.com),
Nach,
zsKnight (zsknight@zsnes.com)
C4 C++ code
(c) Copyright 2003 - 2006 Brad Jorsch,
Nach
DSP-1 emulator code
(c) Copyright 1998 - 2006 _Demo_,
Andreas Naive (andreasnaive@gmail.com),
Gary Henderson,
Ivar (ivar@snes9x.com),
John Weidman,
Kris Bleakley,
Matthew Kendora,
Nach,
neviksti (neviksti@hotmail.com)
DSP-2 emulator code
(c) Copyright 2003 John Weidman,
Kris Bleakley,
Lord Nightmare (lord_nightmare@users.sourceforge.net),
Matthew Kendora,
neviksti
DSP-3 emulator code
(c) Copyright 2003 - 2006 John Weidman,
Kris Bleakley,
Lancer,
z80 gaiden
DSP-4 emulator code
(c) Copyright 2004 - 2006 Dreamer Nom,
John Weidman,
Kris Bleakley,
Nach,
z80 gaiden
OBC1 emulator code
(c) Copyright 2001 - 2004 zsKnight,
pagefault (pagefault@zsnes.com),
Kris Bleakley
Ported from x86 assembler to C by sanmaiwashi
SPC7110 and RTC C++ emulator code used in 1.39-1.51
(c) Copyright 2002 Matthew Kendora with research by
zsKnight,
John Weidman,
Dark Force
SPC7110 and RTC C++ emulator code used in 1.52+
(c) Copyright 2009 byuu,
neviksti
S-DD1 C emulator code
(c) Copyright 2003 Brad Jorsch with research by
Andreas Naive,
John Weidman
S-RTC C emulator code
(c) Copyright 2001 - 2006 byuu,
John Weidman
ST010 C++ emulator code
(c) Copyright 2003 Feather,
John Weidman,
Kris Bleakley,
Matthew Kendora
Super FX x86 assembler emulator code
(c) Copyright 1998 - 2003 _Demo_,
pagefault,
zsKnight
Super FX C emulator code
(c) Copyright 1997 - 1999 Ivar,
Gary Henderson,
John Weidman
Sound emulator code used in 1.5-1.51
(c) Copyright 1998 - 2003 Brad Martin
(c) Copyright 1998 - 2006 Charles Bilyue'
Sound emulator code used in 1.52+
(c) Copyright 2004 - 2007 Shay Green (gblargg@gmail.com)
SH assembler code partly based on x86 assembler code
(c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
2xSaI filter
(c) Copyright 1999 - 2001 Derek Liauw Kie Fa
HQ2x, HQ3x, HQ4x filters
(c) Copyright 2003 Maxim Stepin (maxim@hiend3d.com)
NTSC filter
(c) Copyright 2006 - 2007 Shay Green
GTK+ GUI code
(c) Copyright 2004 - 2010 BearOso
Win32 GUI code
(c) Copyright 2003 - 2006 blip,
funkyass,
Matthew Kendora,
Nach,
nitsuja
(c) Copyright 2009 - 2010 OV2
Mac OS GUI code
(c) Copyright 1998 - 2001 John Stiles
(c) Copyright 2001 - 2010 zones
Specific ports contains the works of other authors. See headers in
individual files.
Snes9x homepage: http://www.snes9x.com/
Permission to use, copy, modify and/or distribute Snes9x in both binary
and source form, for non-commercial purposes, is hereby granted without
fee, providing that this license information and copyright notice appear
with all copies and any derived work.
This software is provided 'as-is', without any express or implied
warranty. In no event shall the authors be held liable for any damages
arising from the use of this software or it's derivatives.
Snes9x is freeware for PERSONAL USE only. Commercial users should
seek permission of the copyright holders first. Commercial use includes,
but is not limited to, charging money for Snes9x or software derived from
Snes9x, including Snes9x or derivatives in commercial game bundles, and/or
using Snes9x as a promotion for your commercial product.
The copyright holders request that bug fixes and improvements to the code
should be forwarded to them so everyone can benefit from the modifications
in future versions.
Super NES and Super Nintendo Entertainment System are trademarks of
Nintendo Co., Limited and its subsidiary companies.
***********************************************************************************/
/* win32_display.cpp
Contains most of the display related functions of the win32 port.
Delegates relevant function calls to the currently selected IS9xDisplayOutput object.
*/
#include "../snes9x.h"
#include "../ppu.h"
#include "../font.h"
#include "wsnes9x.h"
#include "win32_display.h"
#include "CDirect3D.h"
#include "CDirectDraw.h"
#include "COpenGL.h"
#include "IS9xDisplayOutput.h"
#include "../filter/hq2x.h"
#include "../filter/2xsai.h"
// available display output methods
CDirect3D Direct3D;
CDirectDraw DirectDraw;
COpenGL OpenGL;
SSurface Src = {0};
extern BYTE *ScreenBufferBlend;
// Interface used to access the display output
IS9xDisplayOutput *S9xDisplayOutput=&Direct3D;
#ifndef max
#define max(a,b) (((a) > (b)) ? (a) : (b))
#endif
#ifndef min
#define min(a,b) (((a) < (b)) ? (a) : (b))
#endif
bool8 S9xDeinitUpdate (int, int);
void DoAVIVideoFrame();
/* WinRefreshDisplay
repeats the last rendered frame
*/
void WinRefreshDisplay(void)
{
if(!Src.Width)
return;
SelectRenderMethod ();
S9xDisplayOutput->Render(Src);
GUI.FlipCounter++;
}
void WinChangeWindowSize(unsigned int newWidth, unsigned int newHeight)
{
S9xDisplayOutput->ChangeRenderSize(newWidth,newHeight);
}
/* WinDisplayReset
initializes the currently selected display output and
reinitializes the core graphics rendering
-----
returns true if successful, false otherwise
*/
bool WinDisplayReset(void)
{
S9xDisplayOutput->DeInitialize();
switch(GUI.outputMethod) {
default:
case DIRECT3D:
S9xDisplayOutput = &Direct3D;
break;
case DIRECTDRAW:
S9xDisplayOutput = &DirectDraw;
break;
case OPENGL:
S9xDisplayOutput = &OpenGL;
break;
}
if(S9xDisplayOutput->Initialize(GUI.hWnd)) {
S9xGraphicsDeinit();
S9xSetWinPixelFormat ();
S9xInitUpdate();
S9xGraphicsInit();
return true;
} else {
MessageBox (GUI.hWnd, Languages[ GUI.Language].errInitDD, TEXT("Snes9X - Display Failure"), MB_OK | MB_ICONSTOP);
return false;
}
}
void WinDisplayApplyChanges()
{
S9xDisplayOutput->ApplyDisplayChanges();
}
RECT CalculateDisplayRect(unsigned int sourceWidth,unsigned int sourceHeight,
unsigned int displayWidth,unsigned int displayHeight)
{
float xFactor;
float yFactor;
float minFactor;
float renderWidthCalc,renderHeightCalc;
int hExtend = GUI.HeightExtend ? SNES_HEIGHT_EXTENDED : SNES_HEIGHT;
float snesAspect = (float)GUI.AspectWidth/hExtend;
RECT drawRect;
if(GUI.Stretch) {
if(GUI.AspectRatio) {
//fix for hi-res images with FILTER_NONE
//where we need to correct the aspect ratio
renderWidthCalc = (float)sourceWidth;
renderHeightCalc = (float)sourceHeight;
if(renderWidthCalc/renderHeightCalc>snesAspect)
renderWidthCalc = renderHeightCalc * snesAspect;
else if(renderWidthCalc/renderHeightCalc<snesAspect)
renderHeightCalc = renderWidthCalc / snesAspect;
xFactor = (float)displayWidth / renderWidthCalc;
yFactor = (float)displayHeight / renderHeightCalc;
minFactor = xFactor < yFactor ? xFactor : yFactor;
drawRect.right = (LONG)(renderWidthCalc * minFactor);
drawRect.bottom = (LONG)(renderHeightCalc * minFactor);
drawRect.left = (displayWidth - drawRect.right) / 2;
drawRect.top = (displayHeight - drawRect.bottom) / 2;
drawRect.right += drawRect.left;
drawRect.bottom += drawRect.top;
} else {
drawRect.top = 0;
drawRect.left = 0;
drawRect.right = displayWidth;
drawRect.bottom = displayHeight;
}
} else {
drawRect.left = ((int)(displayWidth) - (int)sourceWidth) / 2;
drawRect.top = ((int)(displayHeight) - (int)sourceHeight) / 2;
if(!GUI.AlwaysCenterImage) {
if(drawRect.left < 0) drawRect.left = 0;
if(drawRect.top < 0) drawRect.top = 0;
}
drawRect.right = drawRect.left + sourceWidth;
drawRect.bottom = drawRect.top + sourceHeight;
}
return drawRect;
}
// we no longer support 8bit modes - no palette necessary
void S9xSetPalette( void)
{
return;
}
bool8 S9xInitUpdate (void)
{
return (TRUE);
}
// only necessary for avi recording
// TODO: check if this can be removed
bool8 S9xContinueUpdate(int Width, int Height)
{
// called every other frame during interlace
Src.Width = Width;
if(Height%SNES_HEIGHT)
Src.Height = Height;
else
{
if(Height==SNES_HEIGHT)
Src.Height=SNES_HEIGHT_EXTENDED;
else Src.Height=SNES_HEIGHT_EXTENDED<<1;
}
Src.Pitch = GFX.Pitch;
Src.Surface = (BYTE*)GFX.Screen;
// avi writing
DoAVIVideoFrame();
return true;
}
// do the actual rendering of a frame
bool8 S9xDeinitUpdate (int Width, int Height)
{
Src.Width = Width;
if(Height%SNES_HEIGHT)
Src.Height = Height;
else
{
if(Height==SNES_HEIGHT)
Src.Height=SNES_HEIGHT_EXTENDED;
else Src.Height=SNES_HEIGHT_EXTENDED<<1;
}
Src.Pitch = GFX.Pitch;
Src.Surface = (BYTE*)GFX.Screen;
// avi writing
DoAVIVideoFrame();
// Clear some of the old SNES rendered image
// when the resolution becomes lower in x or y,
// otherwise the image processors (filters) might access
// some of the old rendered data at the edges.
{
static int LastWidth = 0;
static int LastHeight = 0;
if (Width < LastWidth)
{
const int hh = max(LastHeight, Height);
for (int i = 0; i < hh; i++)
memset (GFX.Screen + i * (GFX.Pitch>>1) + Width*1, 0, 4);
}
if (Height < LastHeight)
{
const int ww = max(LastWidth, Width);
for (int i = Height; i < LastHeight ; i++)
memset (GFX.Screen + i * (GFX.Pitch>>1), 0, ww * 2);
// also old clear extended height stuff from drawing surface
if((int)Src.Height > Height)
for (int i = Height; i < (int)Src.Height ; i++)
memset (Src.Surface + i * Src.Pitch, 0, Src.Pitch);
}
LastWidth = Width;
LastHeight = Height;
}
WinRefreshDisplay();
return (true);
}
/* S9xSetWinPixelFormat
sets default settings and calls the appropriate display object
*/
void S9xSetWinPixelFormat ()
{
S9xSetRenderPixelFormat (RGB565);
GUI.NeedDepthConvert = FALSE;
GUI.DepthConverted = !GUI.NeedDepthConvert;
S9xBlit2xSaIFilterDeinit();
S9xBlitHQ2xFilterDeinit();
S9xDisplayOutput->SetSnes9xColorFormat();
}
char *ReadShaderFileContents(const TCHAR *filename)
{
HANDLE hFile;
DWORD size;
DWORD bytesRead;
char *contents;
hFile = CreateFile(filename, GENERIC_READ, FILE_SHARE_READ, NULL,
OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN , 0);
if(hFile == INVALID_HANDLE_VALUE){
return NULL;
}
size = GetFileSize(hFile,NULL);
contents = new char[size+1];
if(!ReadFile(hFile,contents,size,&bytesRead,NULL)) {
CloseHandle(hFile);
delete[] contents;
return NULL;
}
CloseHandle(hFile);
contents[size] = '\0';
return contents;
}
// TODO: abstract the following functions in some way - only necessary for directdraw
/* DirectDraw only begin */
void SwitchToGDI()
{
if(GUI.outputMethod!=DIRECTDRAW)
return;
IPPU.ColorsChanged = true;
DirectDraw.lpDD->FlipToGDISurface();
GUI.FlipCounter = 0;
DirectDraw.lpDDSPrimary2->SetPalette (NULL);
}
static void ClearSurface (LPDIRECTDRAWSURFACE2 lpDDSurface)
{
DDBLTFX fx;
memset (&fx, 0, sizeof (fx));
fx.dwSize = sizeof (fx);
while (lpDDSurface->Blt (NULL, DirectDraw.lpDDSPrimary2, NULL, DDBLT_WAIT, NULL) == DDERR_SURFACELOST)
lpDDSurface->Restore ();
}
void UpdateBackBuffer()
{
if (GUI.outputMethod==DIRECTDRAW && GUI.FullScreen)
{
SwitchToGDI();
DDBLTFX fx;
memset (&fx, 0, sizeof (fx));
fx.dwSize = sizeof (fx);
while (DirectDraw.lpDDSPrimary2->Blt (NULL, NULL, NULL, DDBLT_WAIT | DDBLT_COLORFILL, &fx) == DDERR_SURFACELOST)
DirectDraw.lpDDSPrimary2->Restore ();
if (GetMenu (GUI.hWnd) != NULL)
DrawMenuBar (GUI.hWnd);
GUI.FlipCounter = 0;
DDSCAPS caps;
caps.dwCaps = DDSCAPS_BACKBUFFER;
LPDIRECTDRAWSURFACE2 pDDSurface;
if (DirectDraw.lpDDSPrimary2->GetAttachedSurface (&caps, &pDDSurface) == DD_OK &&
pDDSurface != NULL)
{
ClearSurface (pDDSurface);
DirectDraw.lpDDSPrimary2->Flip (NULL, GUI.Vsync?DDFLIP_WAIT:DDFLIP_NOVSYNC);
while (DirectDraw.lpDDSPrimary2->GetFlipStatus (DDGFS_ISFLIPDONE) != DD_OK)
Sleep (0);
if(DirectDraw.doubleBuffered)
ClearSurface (pDDSurface);
}
}
else
{
if (GetMenu( GUI.hWnd) != NULL)
DrawMenuBar (GUI.hWnd);
}
}
void RestoreGUIDisplay ()
{
if(GUI.outputMethod!=DIRECTDRAW)
return;
S9xSetPause (PAUSE_RESTORE_GUI);
if (GUI.FullScreen &&
(GUI.FullscreenMode.width < 640 || GUI.FullscreenMode.height < 400) &&
!DirectDraw.SetDisplayMode (640, 480, 1, 0, 60, !GUI.FullScreen, false))
{
MessageBox (GUI.hWnd, Languages[ GUI.Language].errModeDD, TEXT("Snes9X - DirectDraw(1)"), MB_OK | MB_ICONSTOP);
S9xClearPause (PAUSE_RESTORE_GUI);
return;
}
SwitchToGDI();
S9xClearPause (PAUSE_RESTORE_GUI);
}
void RestoreSNESDisplay ()
{
if(GUI.outputMethod!=DIRECTDRAW)
return;
if (!DirectDraw.SetFullscreen(GUI.FullScreen))
{
MessageBox (GUI.hWnd, Languages[ GUI.Language].errModeDD, TEXT("Snes9X - DirectDraw(4)"), MB_OK | MB_ICONSTOP);
return;
}
UpdateBackBuffer();
}
/* DirectDraw only end */
void SaveMainWinPos()
{
WINDOWPLACEMENT wndPlacement={0};
wndPlacement.length = sizeof(WINDOWPLACEMENT);
GetWindowPlacement(GUI.hWnd,&wndPlacement);
GUI.window_maximized = wndPlacement.showCmd == SW_SHOWMAXIMIZED;
GUI.window_size = wndPlacement.rcNormalPosition;
}
void RestoreMainWinPos()
{
WINDOWPLACEMENT wndPlacement={0};
wndPlacement.length = sizeof(WINDOWPLACEMENT);
wndPlacement.showCmd = GUI.window_maximized?SW_SHOWMAXIMIZED:SW_SHOWNORMAL;
wndPlacement.rcNormalPosition = GUI.window_size;
SetWindowPlacement(GUI.hWnd,&wndPlacement);
}
/* ToggleFullScreen
switches between fullscreen and window mode and saves the window position
if EmulateFullscreen is set we simply create a borderless window that spans the screen
*/
void ToggleFullScreen ()
{
S9xSetPause (PAUSE_TOGGLE_FULL_SCREEN);
if(GUI.EmulateFullscreen) {
HMONITOR hm;
MONITORINFO mi;
GUI.EmulatedFullscreen = !GUI.EmulatedFullscreen;
if(GUI.EmulatedFullscreen) {
SaveMainWinPos();
if(GetMenu(GUI.hWnd)!=NULL)
SetMenu(GUI.hWnd,NULL);
SetWindowLong (GUI.hWnd, GWL_STYLE, WS_POPUP|WS_VISIBLE);
hm = MonitorFromWindow(GUI.hWnd,MONITOR_DEFAULTTONEAREST);
mi.cbSize = sizeof(mi);
GetMonitorInfo(hm,&mi);
SetWindowPos (GUI.hWnd, HWND_TOP, mi.rcMonitor.left, mi.rcMonitor.top, mi.rcMonitor.right - mi.rcMonitor.left, mi.rcMonitor.bottom - mi.rcMonitor.top, SWP_DRAWFRAME|SWP_FRAMECHANGED);
} else {
SetWindowLong( GUI.hWnd, GWL_STYLE, WS_POPUPWINDOW|WS_CAPTION|
WS_THICKFRAME|WS_VISIBLE|WS_MINIMIZEBOX|WS_MAXIMIZEBOX);
SetMenu(GUI.hWnd,GUI.hMenu);
SetWindowPos (GUI.hWnd, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE|SWP_DRAWFRAME|SWP_FRAMECHANGED);
RestoreMainWinPos();
}
} else {
GUI.FullScreen = !GUI.FullScreen;
if(GUI.FullScreen) {
SaveMainWinPos();
if(GetMenu(GUI.hWnd)!=NULL)
SetMenu(GUI.hWnd,NULL);
SetWindowLong (GUI.hWnd, GWL_STYLE, WS_POPUP|WS_VISIBLE);
SetWindowPos (GUI.hWnd, HWND_TOP, 0, 0, GUI.FullscreenMode.width, GUI.FullscreenMode.height, SWP_DRAWFRAME|SWP_FRAMECHANGED);
if(!S9xDisplayOutput->SetFullscreen(true))
GUI.FullScreen = false;
}
if(!GUI.FullScreen) {
SetWindowLong( GUI.hWnd, GWL_STYLE, WS_POPUPWINDOW|WS_CAPTION|
WS_THICKFRAME|WS_VISIBLE|WS_MINIMIZEBOX|WS_MAXIMIZEBOX);
SetMenu(GUI.hWnd,GUI.hMenu);
S9xDisplayOutput->SetFullscreen(false);
SetWindowPos (GUI.hWnd, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE|SWP_DRAWFRAME|SWP_FRAMECHANGED);
RestoreMainWinPos();
}
S9xGraphicsDeinit();
S9xSetWinPixelFormat ();
S9xInitUpdate();
S9xGraphicsInit();
}
IPPU.RenderThisFrame = true;
S9xClearPause (PAUSE_TOGGLE_FULL_SCREEN);
}
/* S9xOpenSoundDevice
ennumerates the available display modes of the currently selected output
*/
void WinEnumDisplayModes(std::vector<dMode> *modeVector)
{
S9xDisplayOutput->EnumModes(modeVector);
}
/* Depth conversion functions begin */
void Convert16To24 (SSurface *src, SSurface *dst, RECT *srect)
{
const int height = srect->bottom - srect->top;
const int width = srect->right - srect->left;
const int offset1 = srect->top * src->Pitch + srect->left * 2;
const int offset2 = ((dst->Height - height) >> 1) * dst->Pitch + ((dst->Width - width) >> 1) * 3;
const int snesWidth = src->Width;
const int snesHeight = src->Height;
const bool doubledX = (snesWidth >= width*2) ? true : false;
const bool doubledY = (snesHeight >= height*2) ? true : false;
for (int y = 0; y < height; y++)
{
register uint16 *s = (uint16 *) ((uint8 *) src->Surface + (doubledY ? y*2 : y) * src->Pitch + offset1);
register uint8 *d = ((uint8 *) dst->Surface + y * dst->Pitch + offset2);
#define Interp(c1, c2) \
(c1 == c2) ? c1 : \
(((((c1 & 0x07E0) + (c2 & 0x07E0)) >> 1) & 0x07E0) + \
((((c1 & 0xF81F) + (c2 & 0xF81F)) >> 1) & 0xF81F))
if(y >= snesHeight)
{
// beyond SNES image - make the row black
memset(d, 0, width*3);
}
else
#ifdef LSB_FIRST
if (GUI.RedShift < GUI.BlueShift)
#else
if (GUI.RedShift > GUI.BlueShift)
#endif
{
// Order is RGB
if(!doubledX)
{
for (int x = 0; x < width; x++)
{
uint32 pixel = *s++;
*(d + 0) = (pixel >> (11 - 3)) & 0xf8;
*(d + 1) = (pixel >> (6 - 3)) & 0xf8;
*(d + 2) = (pixel & 0x1f) << 3;
d += 3;
}
}
else // high-res x, blend:
{
for (int x = 0; x < width; x++)
{
uint32 pixel = Interp(s[0],s[1]);
s += 2;
*(d + 0) = (pixel >> (11 - 3)) & 0xf8;
*(d + 1) = (pixel >> (6 - 3)) & 0xf8;
*(d + 2) = (pixel & 0x1f) << 3;
d += 3;
}
}
}
else
{
// Order is BGR
if(!doubledX)
{
for (int x = 0; x < width; x++)
{
uint32 pixel = *s++;
*(d + 0) = (pixel & 0x1f) << 3;
*(d + 1) = (pixel >> (6 - 3)) & 0xf8;
*(d + 2) = (pixel >> (11 - 3)) & 0xf8;
d += 3;
}
}
else // high-res x, blend:
{
for (int x = 0; x < width; x++)
{
uint32 pixel = Interp(s[0],s[1]);
s += 2;
*(d + 0) = (pixel & 0x1f) << 3;
*(d + 1) = (pixel >> (6 - 3)) & 0xf8;
*(d + 2) = (pixel >> (11 - 3)) & 0xf8;
d += 3;
}
}
}
}
}
void Convert16To32 (SSurface *src, SSurface *dst, RECT *srect)
{
int height = srect->bottom - srect->top;
int width = srect->right - srect->left;
int offset1 = srect->top * src->Pitch + srect->left * 2;
int offset2 = 0;//((dst->Height - height) >> 1) * dst->Pitch +
//((dst->Width - width) >> 1) * sizeof (uint32);
for (register int y = 0; y < height; y++)
{
register uint16 *s = (uint16 *) ((uint8 *) src->Surface + y * src->Pitch + offset1);
register uint32 *d = (uint32 *) ((uint8 *) dst->Surface +
y * dst->Pitch + offset2);
for (register int x = 0; x < width; x++)
{
uint32 pixel = *s++;
*d++ = (((pixel >> 11) & 0x1f) << GUI.RedShift) |
(((pixel >> 6) & 0x1f) << GUI.GreenShift) |
((pixel & 0x1f) << GUI.BlueShift);
}
}
}
void ConvertDepth (SSurface *src, SSurface *dst, RECT *srect)
{
// SNES image has been rendered in 16-bit, RGB565 format
switch (GUI.ScreenDepth)
{
case 15: // is this right?
case 16:
break;
case 24:
Convert16To24 (src, dst, srect);
break;
case 32:
Convert16To32 (src, dst, srect);
break;
}
}
/* Depth conversion functions end */
/* The rest of the functions are recreations of the core string display functions with additional scaling.
They provide the possibility to render the messages into a surface other than the core GFX.Screen.
*/
void WinDisplayStringFromBottom (const char *string, int linesFromBottom, int pixelsFromLeft, bool allowWrap)
{
if(Settings.StopEmulation)
return;
if(Settings.AutoDisplayMessages) {
WinSetCustomDisplaySurface((void *)GFX.Screen, GFX.RealPPL, IPPU.RenderedScreenWidth, IPPU.RenderedScreenHeight, 1);
WinDisplayStringInBuffer<uint16>(string, linesFromBottom, pixelsFromLeft, allowWrap);
} else
if(GUI.ScreenDepth == 32) {
WinDisplayStringInBuffer<uint32>(string, linesFromBottom, pixelsFromLeft, allowWrap);
} else {
WinDisplayStringInBuffer<uint16>(string, linesFromBottom, pixelsFromLeft, allowWrap);
}
}
static int font_width = 8, font_height = 9;
static void *displayScreen;
int displayPpl, displayWidth, displayHeight, displayScale,fontwidth_scaled,fontheight_scaled;
void WinSetCustomDisplaySurface(void *screen, int ppl, int width, int height, int scale)
{
displayScreen=screen;
displayPpl=ppl;
displayWidth=width;
displayHeight=height;
displayScale=scale;
fontwidth_scaled=font_width*displayScale;
fontheight_scaled=font_height*displayScale;
}
template<typename screenPtrType>
void WinDisplayChar (screenPtrType *s, uint8 c)
{
int h, w;
int line = ((c - 32) >> 4) * fontheight_scaled;
int offset = ((c - 32) & 15) * fontwidth_scaled;
if(displayScale == 1) {
for(h=0; h<fontheight_scaled; h++, line++, s+=displayPpl-fontwidth_scaled)
for(w=0; w<fontwidth_scaled; w++, s++)
FontPixToScreen(font [(line)] [(offset + w)], s);
} else if(displayScale == 2) {
for(h=0; h<fontheight_scaled; h+=2, line+=2, s+=2*displayPpl-fontwidth_scaled)
for(w=0; w<fontwidth_scaled; w+=2, s+=2)
FontPixToScreenEPX((offset + w)/2, line/2, s);
} else if(displayScale == 3) {
for(h=0; h<fontheight_scaled; h+=3, line+=3, s+=3*displayPpl-fontwidth_scaled)
for(w=0; w<fontwidth_scaled; w+=3, s+=3)
FontPixToScreenEPXSimple3((offset + w)/3, line/3, s);
} else {
for(h=0; h<fontheight_scaled; h++, line++, s+=displayPpl-fontwidth_scaled)
for(w=0; w<fontwidth_scaled; w++, s++)
FontPixToScreen(font [(line)/displayScale] [(offset + w)/displayScale], s);
}
}
static inline void FontPixToScreen(char p, uint16 *s)
{
if(p == '#')
{
*s = Settings.DisplayColor;
}
else if(p == '.')
{
static const uint16 black = BUILD_PIXEL(0,0,0);
*s = black;
}
}
static inline void FontPixToScreen(char p, uint32 *s)
{
#define CONVERT_16_TO_32(pixel) \
(((((pixel) >> 11) ) << /*RedShift+3*/ 19) | \
((((pixel) >> 6) & 0x1f) << /*GreenShift+3*/11) | \
(((pixel) & 0x1f) << /*BlueShift+3*/ 3))
if(p == '#')
{
*s = CONVERT_16_TO_32(Settings.DisplayColor);
}
else if(p == '.')
{
static const uint32 black = CONVERT_16_TO_32(BUILD_PIXEL(0,0,0));
*s = black;
}
}
#define CHOOSE(c1) ((c1=='#'||X=='#') ? '#' : ((c1=='.'||X=='.') ? '.' : c1))
template<typename screenPtrType>
static inline void FontPixToScreenEPX(int x, int y, screenPtrType *s)
{
const char X = font[y][x]; // E D H
const char A = x>0 ?font[y][x-1]:' '; // A X C
const char C = x<143?font[y][x+1]:' '; // F B G
if (A != C)
{
const char D = y>0 ?font[y-1][x]:' ';
const char B = y<125?font[y+1][x]:' ';
if (B != D)
{
FontPixToScreen((D == A) ? CHOOSE(D) : X, s);
FontPixToScreen((C == D) ? CHOOSE(C) : X, s+1);
FontPixToScreen((A == B) ? CHOOSE(A) : X, s+displayPpl);
FontPixToScreen((B == C) ? CHOOSE(B) : X, s+displayPpl+1);
return;
}
}
FontPixToScreen(X, s);
FontPixToScreen(X, s+1);
FontPixToScreen(X, s+displayPpl);
FontPixToScreen(X, s+displayPpl+1);
}
#undef CHOOSE
#define CHOOSE(c1) ((X=='#') ? '#' : c1)
template<typename screenPtrType>
inline void FontPixToScreenEPXSimple3(int x, int y, screenPtrType *s)
{
const char X = font[y][x]; // E D H
const char A = x>0 ?font[y][x-1]:' '; // A X C
const char C = x<143?font[y][x+1]:' '; // F B G
const char D = y>0 ?font[y-1][x]:' ';
const char B = y<125?font[y+1][x]:' ';
const bool XnE = y>0 &&x>0 ?(X != font[y-1][x-1]):X!=' ';
const bool XnF = y<125&&x<143?(X != font[y+1][x-1]):X!=' ';
const bool XnG = y<125&&x>0 ?(X != font[y+1][x+1]):X!=' ';
const bool XnH = y>0 &&x<143?(X != font[y-1][x+1]):X!=' ';
const bool DA = D == A && (XnE || CHOOSE(D)!=X);
const bool AB = A == B && (XnF || CHOOSE(A)!=X);
const bool BC = B == C && (XnG || CHOOSE(B)!=X);
const bool CD = C == D && (XnH || CHOOSE(C)!=X);
FontPixToScreen(DA ? A : X, s);
FontPixToScreen(X, s+1);
FontPixToScreen(CD ? C : X, s+2);
FontPixToScreen(X, s+displayPpl);
FontPixToScreen(X, s+displayPpl+1);
FontPixToScreen(X, s+displayPpl+2);
FontPixToScreen(AB ? A : X, s+displayPpl+displayPpl);
FontPixToScreen(X, s+displayPpl+displayPpl+1);
FontPixToScreen(BC ? C : X, s+displayPpl+displayPpl+2);
}
#undef CHOOSE
template<typename screenPtrType>
void WinDisplayStringInBuffer (const char *string, int linesFromBottom, int pixelsFromLeft, bool allowWrap)
{
if (linesFromBottom <= 0)
linesFromBottom = 1;
screenPtrType *dst = (screenPtrType *)displayScreen + (displayHeight - fontheight_scaled * linesFromBottom) * displayPpl + (int)(pixelsFromLeft * (2*(float)displayWidth/IPPU.RenderedScreenWidth - displayScale));
int len = strlen(string);
int max_chars = displayWidth / (fontwidth_scaled - displayScale);
int char_count = 0;
for (int i = 0 ; i < len ; i++, char_count++)
{
if (char_count >= max_chars || (uint8) string[i] < 32)
{
if (!allowWrap)
break;
dst += fontheight_scaled * displayPpl - (fontwidth_scaled - displayScale) * max_chars;
if (dst >= (screenPtrType *)displayScreen + displayHeight * displayPpl)
break;
char_count -= max_chars;
}
if ((uint8) string[i] < 32)
continue;
WinDisplayChar(dst, string[i]);
dst += fontwidth_scaled - displayScale;
}
}
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