/* AppleWin : An Apple //e emulator for Windows Copyright (C) 1994-1996, Michael O'Brien Copyright (C) 1999-2001, Oliver Schmidt Copyright (C) 2002-2005, Tom Charlesworth Copyright (C) 2006-2010, Tom Charlesworth, Michael Pohoreski, Nick Westgate AppleWin 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; either version 2 of the License, or (at your option) any later version. AppleWin 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 for more details. You should have received a copy of the GNU General Public License along with AppleWin; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* Description: Emulation of video modes * * Author: Various */ #include "StdAfx.h" #include "Applewin.h" #include "CPU.h" #include "Disk.h" // DiskUpdateDriveState() #include "Frame.h" #include "Keyboard.h" #include "Memory.h" #include "Registry.h" #include "Video.h" #include "NTSC.h" #include "../resource/resource.h" #include "Configuration/PropertySheet.h" #include "YamlHelper.h" #define SW_80COL (g_uVideoMode & VF_80COL) #define SW_DHIRES (g_uVideoMode & VF_DHIRES) #define SW_HIRES (g_uVideoMode & VF_HIRES) #define SW_80STORE (g_uVideoMode & VF_80STORE) #define SW_MIXED (g_uVideoMode & VF_MIXED) #define SW_PAGE2 (g_uVideoMode & VF_PAGE2) #define SW_TEXT (g_uVideoMode & VF_TEXT) // Globals (Public) uint8_t *g_pFramebufferbits = NULL; // last drawn frame int g_nAltCharSetOffset = 0; // alternate character set // Globals (Private) // video scanner constants int const kHBurstClock = 53; // clock when Color Burst starts int const kHBurstClocks = 4; // clocks per Color Burst duration int const kHClock0State = 0x18; // H[543210] = 011000 int const kHClocks = 65; // clocks per horizontal scan (including HBL) int const kHPEClock = 40; // clock when HPE (horizontal preset enable) goes low int const kHPresetClock = 41; // clock when H state presets int const kHSyncClock = 49; // clock when HSync starts int const kHSyncClocks = 4; // clocks per HSync duration int const kNTSCScanLines = 262; // total scan lines including VBL (NTSC) int const kNTSCVSyncLine = 224; // line when VSync starts (NTSC) int const kPALScanLines = 312; // total scan lines including VBL (PAL) int const kPALVSyncLine = 264; // line when VSync starts (PAL) int const kVLine0State = 0x100; // V[543210CBA] = 100000000 int const kVPresetLine = 256; // line when V state presets int const kVSyncLines = 4; // lines per VSync duration int const kVDisplayableScanLines = 192; // max displayable scanlines static COLORREF customcolors[256]; // MONOCHROME is last custom color static HBITMAP g_hDeviceBitmap; static HDC g_hDeviceDC; static LPBITMAPINFO g_pFramebufferinfo = NULL; HBITMAP g_hLogoBitmap; const int MAX_SOURCE_Y = 512; static LPBYTE g_aSourceStartofLine[ MAX_SOURCE_Y ]; COLORREF g_nMonochromeRGB = RGB(0xC0,0xC0,0xC0); uint32_t g_uVideoMode = VF_TEXT; // Current Video Mode (this is the last set one as it may change mid-scan line!) DWORD g_eVideoType = VT_COLOR_TV; DWORD g_uHalfScanLines = 1; // drop 50% scan lines for a more authentic look static const bool g_bVideoScannerNTSC = true; // NTSC video scanning (or PAL) //------------------------------------- // NOTE: KEEP IN SYNC: VideoType_e g_aVideoChoices g_apVideoModeDesc TCHAR g_aVideoChoices[] = TEXT("Monochrome (Custom)\0") TEXT("Color Monitor\0") TEXT("B&W TV\0") TEXT("Color TV\0") TEXT("Monochrome (Amber)\0") TEXT("Monochrome (Green)\0") TEXT("Monochrome (White)\0") ; // NOTE: KEEP IN SYNC: VideoType_e g_aVideoChoices g_apVideoModeDesc // The window title will be set to this. char *g_apVideoModeDesc[ NUM_VIDEO_MODES ] = { "Monochrome Monitor (Custom)" , "Color Monitor" , "B&W TV" , "Color TV" , "Amber Monitor" , "Green Monitor" , "White Monitor" }; // Prototypes (Private) _____________________________________________ bool g_bDisplayPrintScreenFileName = false; bool g_bShowPrintScreenWarningDialog = true; void Util_MakeScreenShotFileName( char *pFinalFileName_ ); bool Util_TestScreenShotFileName( const char *pFileName ); void Video_SaveScreenShot( const char *pScreenShotFileName, const VideoScreenShot_e ScreenShotType ); void Video_MakeScreenShot( FILE *pFile, const VideoScreenShot_e ScreenShotType ); void videoCreateDIBSection(); //=========================================================================== void VideoInitialize () { // RESET THE VIDEO MODE SWITCHES AND THE CHARACTER SET OFFSET VideoResetState(); // LOAD THE LOGO g_hLogoBitmap = LoadBitmap( g_hInstance, MAKEINTRESOURCE(IDB_APPLEWIN) ); // CREATE A BITMAPINFO STRUCTURE FOR THE FRAME BUFFER g_pFramebufferinfo = (LPBITMAPINFO)VirtualAlloc( NULL, sizeof(BITMAPINFOHEADER) + 256*sizeof(RGBQUAD), MEM_COMMIT, PAGE_READWRITE); ZeroMemory(g_pFramebufferinfo,sizeof(BITMAPINFOHEADER)+256*sizeof(RGBQUAD)); g_pFramebufferinfo->bmiHeader.biSize = sizeof(BITMAPINFOHEADER); g_pFramebufferinfo->bmiHeader.biWidth = GetFrameBufferWidth(); g_pFramebufferinfo->bmiHeader.biHeight = GetFrameBufferHeight(); g_pFramebufferinfo->bmiHeader.biPlanes = 1; g_pFramebufferinfo->bmiHeader.biBitCount = 32; g_pFramebufferinfo->bmiHeader.biCompression = BI_RGB; g_pFramebufferinfo->bmiHeader.biClrUsed = 0; videoCreateDIBSection(); } //=========================================================================== // // ----- ALL GLOBALLY ACCESSIBLE FUNCTIONS ARE BELOW THIS LINE ----- // //=========================================================================== void VideoBenchmark () { Sleep(500); // PREPARE TWO DIFFERENT FRAME BUFFERS, EACH OF WHICH HAVE HALF OF THE // BYTES SET TO 0x14 AND THE OTHER HALF SET TO 0xAA int loop; LPDWORD mem32 = (LPDWORD)mem; for (loop = 4096; loop < 6144; loop++) *(mem32+loop) = ((loop & 1) ^ ((loop & 0x40) >> 6)) ? 0x14141414 : 0xAAAAAAAA; for (loop = 6144; loop < 8192; loop++) *(mem32+loop) = ((loop & 1) ^ ((loop & 0x40) >> 6)) ? 0xAAAAAAAA : 0x14141414; // SEE HOW MANY TEXT FRAMES PER SECOND WE CAN PRODUCE WITH NOTHING ELSE // GOING ON, CHANGING HALF OF THE BYTES IN THE VIDEO BUFFER EACH FRAME TO // SIMULATE THE ACTIVITY OF AN AVERAGE GAME DWORD totaltextfps = 0; g_uVideoMode = VF_TEXT; FillMemory(mem+0x400,0x400,0x14); VideoRedrawScreen(); DWORD milliseconds = GetTickCount(); while (GetTickCount() == milliseconds) ; milliseconds = GetTickCount(); DWORD cycle = 0; do { if (cycle & 1) FillMemory(mem+0x400,0x400,0x14); else CopyMemory(mem+0x400,mem+((cycle & 2) ? 0x4000 : 0x6000),0x400); VideoRefreshScreen(); if (cycle++ >= 3) cycle = 0; totaltextfps++; } while (GetTickCount() - milliseconds < 1000); // SEE HOW MANY HIRES FRAMES PER SECOND WE CAN PRODUCE WITH NOTHING ELSE // GOING ON, CHANGING HALF OF THE BYTES IN THE VIDEO BUFFER EACH FRAME TO // SIMULATE THE ACTIVITY OF AN AVERAGE GAME DWORD totalhiresfps = 0; g_uVideoMode = VF_HIRES; FillMemory(mem+0x2000,0x2000,0x14); VideoRedrawScreen(); milliseconds = GetTickCount(); while (GetTickCount() == milliseconds) ; milliseconds = GetTickCount(); cycle = 0; do { if (cycle & 1) FillMemory(mem+0x2000,0x2000,0x14); else CopyMemory(mem+0x2000,mem+((cycle & 2) ? 0x4000 : 0x6000),0x2000); VideoRefreshScreen(); if (cycle++ >= 3) cycle = 0; totalhiresfps++; } while (GetTickCount() - milliseconds < 1000); // DETERMINE HOW MANY 65C02 CLOCK CYCLES WE CAN EMULATE PER SECOND WITH // NOTHING ELSE GOING ON DWORD totalmhz10[2] = {0,0}; // bVideoUpdate & !bVideoUpdate for (UINT i=0; i<2; i++) { CpuSetupBenchmark(); milliseconds = GetTickCount(); while (GetTickCount() == milliseconds) ; milliseconds = GetTickCount(); do { CpuExecute(100000, i==0 ? true : false); totalmhz10[i]++; } while (GetTickCount() - milliseconds < 1000); } // IF THE PROGRAM COUNTER IS NOT IN THE EXPECTED RANGE AT THE END OF THE // CPU BENCHMARK, REPORT AN ERROR AND OPTIONALLY TRACK IT DOWN if ((regs.pc < 0x300) || (regs.pc > 0x400)) if (MessageBox(g_hFrameWindow, TEXT("The emulator has detected a problem while running ") TEXT("the CPU benchmark. Would you like to gather more ") TEXT("information?"), TEXT("Benchmarks"), MB_ICONQUESTION | MB_YESNO | MB_SETFOREGROUND) == IDYES) { BOOL error = 0; WORD lastpc = 0x300; int loop = 0; while ((loop < 10000) && !error) { CpuSetupBenchmark(); CpuExecute(loop, true); if ((regs.pc < 0x300) || (regs.pc > 0x400)) error = 1; else { lastpc = regs.pc; ++loop; } } if (error) { TCHAR outstr[256]; wsprintf(outstr, TEXT("The emulator experienced an error %u clock cycles ") TEXT("into the CPU benchmark. Prior to the error, the ") TEXT("program counter was at $%04X. After the error, it ") TEXT("had jumped to $%04X."), (unsigned)loop, (unsigned)lastpc, (unsigned)regs.pc); MessageBox(g_hFrameWindow, outstr, TEXT("Benchmarks"), MB_ICONINFORMATION | MB_SETFOREGROUND); } else MessageBox(g_hFrameWindow, TEXT("The emulator was unable to locate the exact ") TEXT("point of the error. This probably means that ") TEXT("the problem is external to the emulator, ") TEXT("happening asynchronously, such as a problem in ") TEXT("a timer interrupt handler."), TEXT("Benchmarks"), MB_ICONINFORMATION | MB_SETFOREGROUND); } // DO A REALISTIC TEST OF HOW MANY FRAMES PER SECOND WE CAN PRODUCE // WITH FULL EMULATION OF THE CPU, JOYSTICK, AND DISK HAPPENING AT // THE SAME TIME DWORD realisticfps = 0; FillMemory(mem+0x2000,0x2000,0xAA); VideoRedrawScreen(); milliseconds = GetTickCount(); while (GetTickCount() == milliseconds) ; milliseconds = GetTickCount(); cycle = 0; do { if (realisticfps < 10) { int cycles = 100000; while (cycles > 0) { DWORD executedcycles = CpuExecute(103, true); cycles -= executedcycles; DiskUpdateDriveState(executedcycles); JoyUpdateButtonLatch(executedcycles); } } if (cycle & 1) FillMemory(mem+0x2000,0x2000,0xAA); else CopyMemory(mem+0x2000,mem+((cycle & 2) ? 0x4000 : 0x6000),0x2000); VideoRedrawScreen(); if (cycle++ >= 3) cycle = 0; realisticfps++; } while (GetTickCount() - milliseconds < 1000); // DISPLAY THE RESULTS VideoDisplayLogo(); TCHAR outstr[256]; wsprintf(outstr, TEXT("Pure Video FPS:\t%u hires, %u text\n") TEXT("Pure CPU MHz:\t%u.%u%s (video update)\n") TEXT("Pure CPU MHz:\t%u.%u%s (full-speed)\n\n") TEXT("EXPECTED AVERAGE VIDEO GAME\n") TEXT("PERFORMANCE: %u FPS"), (unsigned)totalhiresfps, (unsigned)totaltextfps, (unsigned)(totalmhz10[0] / 10), (unsigned)(totalmhz10[0] % 10), (LPCTSTR)(IS_APPLE2 ? TEXT(" (6502)") : TEXT("")), (unsigned)(totalmhz10[1] / 10), (unsigned)(totalmhz10[1] % 10), (LPCTSTR)(IS_APPLE2 ? TEXT(" (6502)") : TEXT("")), (unsigned)realisticfps); MessageBox(g_hFrameWindow, outstr, TEXT("Benchmarks"), MB_ICONINFORMATION | MB_SETFOREGROUND); } // This is called from PageConfig //=========================================================================== void VideoChooseMonochromeColor () { CHOOSECOLOR cc; ZeroMemory(&cc,sizeof(CHOOSECOLOR)); cc.lStructSize = sizeof(CHOOSECOLOR); cc.hwndOwner = g_hFrameWindow; cc.rgbResult = g_nMonochromeRGB; cc.lpCustColors = customcolors + 1; cc.Flags = CC_RGBINIT | CC_SOLIDCOLOR; if (ChooseColor(&cc)) { g_nMonochromeRGB = cc.rgbResult; VideoReinitialize(); if ((g_nAppMode != MODE_LOGO) && (g_nAppMode != MODE_DEBUG)) { VideoRedrawScreen(); } Config_Save_Video(); } } //=========================================================================== void VideoDestroy () { // DESTROY BUFFERS VirtualFree(g_pFramebufferinfo,0,MEM_RELEASE); g_pFramebufferinfo = NULL; // DESTROY FRAME BUFFER DeleteDC(g_hDeviceDC); DeleteObject(g_hDeviceBitmap); g_hDeviceDC = (HDC)0; g_hDeviceBitmap = (HBITMAP)0; // DESTROY LOGO if (g_hLogoBitmap) { DeleteObject(g_hLogoBitmap); g_hLogoBitmap = (HBITMAP)0; } } //=========================================================================== static void VideoDrawLogoBitmap(HDC hDstDC, int xoff, int yoff, int srcw, int srch, int scale) { HDC hSrcDC = CreateCompatibleDC( hDstDC ); SelectObject( hSrcDC, g_hLogoBitmap ); StretchBlt( hDstDC, // hdcDest xoff, yoff, // nXDest, nYDest scale * srcw, scale * srch, // nWidth, nHeight hSrcDC, // hdcSrc 0, 0, // nXSrc, nYSrc srcw, srch, SRCCOPY // dwRop ); DeleteObject( hSrcDC ); } //=========================================================================== void VideoDisplayLogo () { int nLogoX = 0, nLogoY = 0; int scale = GetViewportScale(); HDC hFrameDC = FrameGetDC(); // DRAW THE LOGO SelectObject(hFrameDC, GetStockObject(NULL_PEN)); if (g_hLogoBitmap) { BITMAP bm; if (GetObject(g_hLogoBitmap, sizeof(bm), &bm)) { nLogoX = (g_nViewportCX - scale*bm.bmWidth )/2; nLogoY = (g_nViewportCY - scale*bm.bmHeight)/2; if( IsFullScreen() ) { nLogoX += GetFullScreenOffsetX(); nLogoY += GetFullScreenOffsetY(); } VideoDrawLogoBitmap( hFrameDC, nLogoX, nLogoY, bm.bmWidth, bm.bmHeight, scale ); } } // DRAW THE VERSION NUMBER TCHAR sFontName[] = TEXT("Arial"); HFONT font = CreateFont(-20,0,0,0,FW_NORMAL,0,0,0,ANSI_CHARSET, OUT_DEFAULT_PRECIS,CLIP_DEFAULT_PRECIS,DEFAULT_QUALITY, VARIABLE_PITCH | 4 | FF_SWISS, sFontName ); SelectObject(hFrameDC,font); SetTextAlign(hFrameDC,TA_RIGHT | TA_TOP); SetBkMode(hFrameDC,TRANSPARENT); char szVersion[ 64 ] = ""; sprintf( szVersion, "Version %s", VERSIONSTRING ); int xoff = GetFullScreenOffsetX(), yoff = GetFullScreenOffsetY(); #define DRAWVERSION(x,y,c) \ SetTextColor(hFrameDC,c); \ TextOut(hFrameDC, \ scale*540+x+xoff,scale*358+y+yoff, \ szVersion, \ strlen(szVersion)); if (GetDeviceCaps(hFrameDC,PLANES) * GetDeviceCaps(hFrameDC,BITSPIXEL) <= 4) { DRAWVERSION( 2, 2,RGB(0x00,0x00,0x00)); DRAWVERSION( 1, 1,RGB(0x00,0x00,0x00)); DRAWVERSION( 0, 0,RGB(0xFF,0x00,0xFF)); } else { DRAWVERSION( 1, 1,PALETTERGB(0x30,0x30,0x70)); DRAWVERSION(-1,-1,PALETTERGB(0xC0,0x70,0xE0)); DRAWVERSION( 0, 0,PALETTERGB(0x70,0x30,0xE0)); } #if _DEBUG sprintf( szVersion, "DEBUG" ); DRAWVERSION( 2, -358*scale,RGB(0x00,0x00,0x00)); DRAWVERSION( 1, -357*scale,RGB(0x00,0x00,0x00)); DRAWVERSION( 0, -356*scale,RGB(0xFF,0x00,0xFF)); #endif #undef DRAWVERSION DeleteObject(font); } //=========================================================================== void VideoRedrawScreenDuringFullSpeed(DWORD dwCyclesThisFrame, bool bInit /*=false*/) { static DWORD dwFullSpeedStartTime = 0; // static bool bValid = false; if (bInit) { // Just entered full-speed mode // bValid = false; dwFullSpeedStartTime = GetTickCount(); return; } DWORD dwFullSpeedDuration = GetTickCount() - dwFullSpeedStartTime; if (dwFullSpeedDuration <= 16) // Only update after every realtime ~17ms of *continuous* full-speed return; dwFullSpeedStartTime += dwFullSpeedDuration; // #if 0 static BYTE text_main[1024*2] = {0}; // page1 & 2 static BYTE text_aux[1024*2] = {0}; // page1 & 2 static BYTE hgr_main[8192*2] = {0}; // page1 & 2 static BYTE hgr_aux[8192*2] = {0}; // page1 & 2 bool bRedraw = true; // Always redraw for bValid==false (ie. just entered full-speed mode) if (bValid) { if ((g_uVideoMode&(VF_DHIRES|VF_HIRES|VF_TEXT|VF_MIXED)) == VF_HIRES) { // HIRES (not MIXED) - eg. AZTEC.DSK if ((g_uVideoMode&VF_PAGE2) == 0) bRedraw = memcmp(&hgr_main[0x0000], MemGetMainPtr(0x2000), 8192) != 0; else bRedraw = memcmp(&hgr_main[0x2000], MemGetMainPtr(0x4000), 8192) != 0; } else { bRedraw = (memcmp(text_main, MemGetMainPtr(0x400), sizeof(text_main)) != 0) || (memcmp(text_aux, MemGetAuxPtr(0x400), sizeof(text_aux)) != 0) || (memcmp(hgr_main, MemGetMainPtr(0x2000), sizeof(hgr_main)) != 0) || (memcmp(hgr_aux, MemGetAuxPtr(0x2000), sizeof(hgr_aux)) != 0); } } if (bRedraw) VideoRedrawScreenAfterFullSpeed(dwCyclesThisFrame); // Copy all video memory (+ screen holes) memcpy(text_main, MemGetMainPtr(0x400), sizeof(text_main)); memcpy(text_aux, MemGetAuxPtr(0x400), sizeof(text_aux)); memcpy(hgr_main, MemGetMainPtr(0x2000), sizeof(hgr_main)); memcpy(hgr_aux, MemGetAuxPtr(0x2000), sizeof(hgr_aux)); bValid = true; #else VideoRedrawScreenAfterFullSpeed(dwCyclesThisFrame); #endif } //=========================================================================== void VideoRedrawScreenAfterFullSpeed(DWORD dwCyclesThisFrame) { if (g_bVideoScannerNTSC) { NTSC_VideoClockResync(dwCyclesThisFrame); } else // PAL { _ASSERT(0); g_nVideoClockVert = (uint16_t) (dwCyclesThisFrame / kHClocks) % kPALScanLines; g_nVideoClockHorz = (uint16_t) (dwCyclesThisFrame % kHClocks); } VideoRedrawScreen(); // Better (no flicker) than using: NTSC_VideoReinitialize() or VideoReinitialize() } //=========================================================================== void VideoRedrawScreen (void) { // NB. Can't rely on g_uVideoMode being non-zero (ie. so it can double up as a flag) since 'GR,PAGE1,non-mixed' mode == 0x00. VideoRefreshScreen( g_uVideoMode, true ); } //=========================================================================== // TC: Hacky-fix for GH#341 - better to draw to the correct position in the framebuffer to start with! (in NTSC.cpp) // . NB. Now the dx is corrected in NTSC.cpp, updateVideoScannerAddress() static void VideoFrameBufferAdjust(int& xSrc, int& ySrc, bool bInvertY=false) { int dx=0, dy=0; if (g_eVideoType == VT_MONO_TV || g_eVideoType == VT_COLOR_TV) { // Adjust the src locations for the NTSC video modes dy = -1; } if (bInvertY) dy =- dy; xSrc += dx; ySrc += dy; } void VideoRefreshScreen ( uint32_t uRedrawWholeScreenVideoMode /* =0*/, bool bRedrawWholeScreen /* =false*/ ) { if (bRedrawWholeScreen || g_nAppMode == MODE_PAUSED) { // uVideoModeForWholeScreen set if: // . MODE_DEBUG : always // . MODE_RUNNING : called from VideoRedrawScreen(), eg. during full-speed if (bRedrawWholeScreen) NTSC_SetVideoMode( uRedrawWholeScreenVideoMode ); NTSC_VideoRedrawWholeScreen(); } HDC hFrameDC = FrameGetDC(); if (hFrameDC) { int xSrc = GetFrameBufferBorderWidth(); int ySrc = GetFrameBufferBorderHeight(); VideoFrameBufferAdjust(xSrc, ySrc); // TC: Hacky-fix for GH#341 int xdest = IsFullScreen() ? GetFullScreenOffsetX() : 0; int ydest = IsFullScreen() ? GetFullScreenOffsetY() : 0; int wdest = g_nViewportCX; int hdest = g_nViewportCY; SetStretchBltMode(hFrameDC, COLORONCOLOR); StretchBlt( hFrameDC, xdest, ydest, wdest, hdest, g_hDeviceDC, xSrc, ySrc, GetFrameBufferBorderlessWidth(), GetFrameBufferBorderlessHeight(), SRCCOPY); } GdiFlush(); } //=========================================================================== void VideoReinitialize () { NTSC_VideoReinitialize( g_dwCyclesThisFrame ); NTSC_VideoInitAppleType(); NTSC_SetVideoStyle(); NTSC_SetVideoTextMode( g_uVideoMode & VF_80COL ? 80 : 40 ); NTSC_SetVideoMode( g_uVideoMode ); // Pre-condition: g_nVideoClockHorz (derived from g_dwCyclesThisFrame) } //=========================================================================== void VideoResetState () { g_nAltCharSetOffset = 0; g_uVideoMode = VF_TEXT; NTSC_SetVideoTextMode( 40 ); NTSC_SetVideoMode( g_uVideoMode ); } //=========================================================================== BYTE VideoSetMode (WORD, WORD address, BYTE write, BYTE, ULONG uExecutedCycles) { address &= 0xFF; switch (address) { case 0x00: g_uVideoMode &= ~VF_80STORE; break; case 0x01: g_uVideoMode |= VF_80STORE; break; case 0x0C: if (!IS_APPLE2){g_uVideoMode &= ~VF_80COL; NTSC_SetVideoTextMode(40);}; break; case 0x0D: if (!IS_APPLE2){g_uVideoMode |= VF_80COL; NTSC_SetVideoTextMode(80);}; break; case 0x0E: if (!IS_APPLE2) g_nAltCharSetOffset = 0; break; // Alternate char set off case 0x0F: if (!IS_APPLE2) g_nAltCharSetOffset = 256; break; // Alternate char set on case 0x50: g_uVideoMode &= ~VF_TEXT; break; case 0x51: g_uVideoMode |= VF_TEXT; break; case 0x52: g_uVideoMode &= ~VF_MIXED; break; case 0x53: g_uVideoMode |= VF_MIXED; break; case 0x54: g_uVideoMode &= ~VF_PAGE2; break; case 0x55: g_uVideoMode |= VF_PAGE2; break; case 0x56: g_uVideoMode &= ~VF_HIRES; break; case 0x57: g_uVideoMode |= VF_HIRES; break; case 0x5E: if (!IS_APPLE2) g_uVideoMode |= VF_DHIRES; break; case 0x5F: if (!IS_APPLE2) g_uVideoMode &= ~VF_DHIRES; break; } NTSC_SetVideoMode( g_uVideoMode ); return MemReadFloatingBus(uExecutedCycles); } //=========================================================================== bool VideoGetSW80COL(void) { return SW_80COL ? true : false; } bool VideoGetSWDHIRES(void) { return SW_DHIRES ? true : false; } bool VideoGetSWHIRES(void) { return SW_HIRES ? true : false; } bool VideoGetSW80STORE(void) { return SW_80STORE ? true : false; } bool VideoGetSWMIXED(void) { return SW_MIXED ? true : false; } bool VideoGetSWPAGE2(void) { return SW_PAGE2 ? true : false; } bool VideoGetSWTEXT(void) { return SW_TEXT ? true : false; } bool VideoGetSWAltCharSet(void) { return g_nAltCharSetOffset != 0; } //=========================================================================== void VideoSetSnapshot_v1(const UINT AltCharSet, const UINT VideoMode) { g_nAltCharSetOffset = !AltCharSet ? 0 : 256; g_uVideoMode = VideoMode; g_dwCyclesThisFrame = 0; } // #define SS_YAML_KEY_ALTCHARSET "Alt Char Set" #define SS_YAML_KEY_VIDEOMODE "Video Mode" #define SS_YAML_KEY_CYCLESTHISFRAME "Cycles This Frame" static std::string VideoGetSnapshotStructName(void) { static const std::string name("Video"); return name; } void VideoSaveSnapshot(YamlSaveHelper& yamlSaveHelper) { YamlSaveHelper::Label state(yamlSaveHelper, "%s:\n", VideoGetSnapshotStructName().c_str()); yamlSaveHelper.SaveBool(SS_YAML_KEY_ALTCHARSET, g_nAltCharSetOffset ? true : false); yamlSaveHelper.SaveHexUint32(SS_YAML_KEY_VIDEOMODE, g_uVideoMode); yamlSaveHelper.SaveUint(SS_YAML_KEY_CYCLESTHISFRAME, g_dwCyclesThisFrame); } void VideoLoadSnapshot(YamlLoadHelper& yamlLoadHelper) { if (!yamlLoadHelper.GetSubMap(VideoGetSnapshotStructName())) return; g_nAltCharSetOffset = yamlLoadHelper.LoadBool(SS_YAML_KEY_ALTCHARSET) ? 256 : 0; g_uVideoMode = yamlLoadHelper.LoadUint(SS_YAML_KEY_VIDEOMODE); g_dwCyclesThisFrame = yamlLoadHelper.LoadUint(SS_YAML_KEY_CYCLESTHISFRAME); yamlLoadHelper.PopMap(); } //=========================================================================== // // References to Jim Sather's books are given as eg: // UTAIIe:5-7,P3 (Understanding the Apple IIe, chapter 5, page 7, Paragraph 3) // WORD VideoGetScannerAddress(DWORD nCycles, VideoScanner_e videoScannerAddr /*= VS_FullAddr*/) { // machine state switches // bool bHires = VideoGetSWHIRES() && !VideoGetSWTEXT(); bool bPage2 = VideoGetSWPAGE2(); bool b80Store = VideoGetSW80STORE(); // calculate video parameters according to display standard // const int kScanLines = g_bVideoScannerNTSC ? kNTSCScanLines : kPALScanLines; const int kScanCycles = kScanLines * kHClocks; _ASSERT(nCycles < kScanCycles); nCycles %= kScanCycles; // calculate horizontal scanning state // int nHClock = (nCycles + kHPEClock) % kHClocks; // which horizontal scanning clock int nHState = kHClock0State + nHClock; // H state bits if (nHClock >= kHPresetClock) // check for horizontal preset { nHState -= 1; // correct for state preset (two 0 states) } int h_0 = (nHState >> 0) & 1; // get horizontal state bits int h_1 = (nHState >> 1) & 1; int h_2 = (nHState >> 2) & 1; int h_3 = (nHState >> 3) & 1; int h_4 = (nHState >> 4) & 1; int h_5 = (nHState >> 5) & 1; // calculate vertical scanning state // int nVLine = nCycles / kHClocks; // which vertical scanning line int nVState = kVLine0State + nVLine; // V state bits if (nVLine >= kVPresetLine) // check for previous vertical state preset { nVState -= kScanLines; // compensate for preset } int v_A = (nVState >> 0) & 1; // get vertical state bits int v_B = (nVState >> 1) & 1; int v_C = (nVState >> 2) & 1; int v_0 = (nVState >> 3) & 1; int v_1 = (nVState >> 4) & 1; int v_2 = (nVState >> 5) & 1; int v_3 = (nVState >> 6) & 1; int v_4 = (nVState >> 7) & 1; int v_5 = (nVState >> 8) & 1; // calculate scanning memory address // if (bHires && SW_MIXED && v_4 && v_2) // HIRES TIME signal (UTAIIe:5-7,P3) { bHires = false; // address is in text memory for mixed hires } int nAddend0 = 0x0D; // 1 1 0 1 int nAddend1 = (h_5 << 2) | (h_4 << 1) | (h_3 << 0); int nAddend2 = (v_4 << 3) | (v_3 << 2) | (v_4 << 1) | (v_3 << 0); int nSum = (nAddend0 + nAddend1 + nAddend2) & 0x0F; // SUM (UTAIIe:5-9) WORD nAddressH = 0; // build address from video scanner equations (UTAIIe:5-8,T5.1) nAddressH |= h_0 << 0; // a0 nAddressH |= h_1 << 1; // a1 nAddressH |= h_2 << 2; // a2 nAddressH |= nSum << 3; // a3 - a6 if (!bHires) { // Apple ][ (not //e) and HBL? // if (IS_APPLE2 && // Apple II only (UTAIIe:I-4,#5) !h_5 && (!h_4 || !h_3)) // HBL (UTAIIe:8-10,F8.5) { nAddressH |= 1 << 12; // Y: a12 (add $1000 to address!) } } WORD nAddressV = 0; nAddressV |= v_0 << 7; // a7 nAddressV |= v_1 << 8; // a8 nAddressV |= v_2 << 9; // a9 int p2a = !(bPage2 && !b80Store) ? 1 : 0; int p2b = (bPage2 && !b80Store) ? 1 : 0; WORD nAddressP = 0; // Page bits if (bHires) // hires? { // Y: insert hires-only address bits // nAddressV |= v_A << 10; // a10 nAddressV |= v_B << 11; // a11 nAddressV |= v_C << 12; // a12 nAddressP |= p2a << 13; // a13 nAddressP |= p2b << 14; // a14 } else { // N: insert text-only address bits // nAddressP |= p2a << 10; // a10 nAddressP |= p2b << 11; // a11 } // VBL' = v_4' | v_3' = (v_4 & v_3)' (UTAIIe:5-10,#3) if (videoScannerAddr == VS_PartialAddrH) return nAddressH; if (videoScannerAddr == VS_PartialAddrV) return nAddressV; return nAddressP | nAddressV | nAddressH; } //=========================================================================== bool VideoGetVblBar(const DWORD uExecutedCycles) { // get video scanner position int nCycles = CpuGetCyclesThisVideoFrame(uExecutedCycles); // calculate video parameters according to display standard const int kScanLines = g_bVideoScannerNTSC ? kNTSCScanLines : kPALScanLines; const int kScanCycles = kScanLines * kHClocks; nCycles %= kScanCycles; // VBL' return nCycles < kVDisplayableScanLines * kHClocks; } //=========================================================================== #define SCREENSHOT_BMP 1 #define SCREENSHOT_TGA 0 static int g_nLastScreenShot = 0; const int nMaxScreenShot = 999999999; static char *g_pLastDiskImageName = NULL; //=========================================================================== void Video_ResetScreenshotCounter( char *pImageName ) { g_nLastScreenShot = 0; g_pLastDiskImageName = pImageName; } //=========================================================================== void Util_MakeScreenShotFileName( char *pFinalFileName_ ) { char sPrefixScreenShotFileName[ 256 ] = "AppleWin_ScreenShot"; // TODO: g_sScreenshotDir char *pPrefixFileName = g_pLastDiskImageName ? g_pLastDiskImageName : sPrefixScreenShotFileName; #if SCREENSHOT_BMP sprintf( pFinalFileName_, "%s_%09d.bmp", pPrefixFileName, g_nLastScreenShot ); #endif #if SCREENSHOT_TGA sprintf( pFinalFileName_, "%s%09d.tga", pPrefixFileName, g_nLastScreenShot ); #endif } // Returns TRUE if file exists, else FALSE //=========================================================================== bool Util_TestScreenShotFileName( const char *pFileName ) { bool bFileExists = false; FILE *pFile = fopen( pFileName, "rt" ); if (pFile) { fclose( pFile ); bFileExists = true; } return bFileExists; } //=========================================================================== void Video_TakeScreenShot( const VideoScreenShot_e ScreenShotType ) { char sScreenShotFileName[ MAX_PATH ]; // find last screenshot filename so we don't overwrite the existing user ones bool bExists = true; while( bExists ) { if (g_nLastScreenShot > nMaxScreenShot) // Holy Crap! User has maxed the number of screenshots!? { sprintf( sScreenShotFileName, "You have more then %d screenshot filenames! They will no longer be saved.\n\nEither move some of your screenshots or increase the maximum in video.cpp\n", nMaxScreenShot ); MessageBox( g_hFrameWindow, sScreenShotFileName, "Warning", MB_OK ); g_nLastScreenShot = 0; return; } Util_MakeScreenShotFileName( sScreenShotFileName ); bExists = Util_TestScreenShotFileName( sScreenShotFileName ); if( !bExists ) { break; } g_nLastScreenShot++; } Video_SaveScreenShot( sScreenShotFileName, ScreenShotType ); g_nLastScreenShot++; } WinBmpHeader_t g_tBmpHeader; #if SCREENSHOT_TGA enum TargaImageType_e { TARGA_RGB = 2 }; struct TargaHeader_t { // Addr Bytes u8 nIdBytes ; // 00 01 size of ID field that follows 18 byte header (0 usually) u8 bHasPalette ; // 01 01 u8 iImageType ; // 02 01 type of image 0=none,1=indexed,2=rgb,3=grey,+8=rle packed s16 iPaletteFirstColor ; // 03 02 s16 nPaletteColors ; // 05 02 u8 nPaletteBitsPerEntry ; // 07 01 number of bits per palette entry 15,16,24,32 s16 nOriginX ; // 08 02 image x origin s16 nOriginY ; // 0A 02 image y origin s16 nWidthPixels ; // 0C 02 s16 nHeightPixels ; // 0E 02 u8 nBitsPerPixel ; // 10 01 image bits per pixel 8,16,24,32 u8 iDescriptor ; // 11 01 image descriptor bits (vh flip bits) // pixel data... u8 aPixelData[1] ; // rgb }; TargaHeader_t g_tTargaHeader; #endif // SCREENSHOT_TGA void Video_SetBitmapHeader( WinBmpHeader_t *pBmp, int nWidth, int nHeight, int nBitsPerPixel ) { #if SCREENSHOT_BMP pBmp->nCookie[ 0 ] = 'B'; // 0x42 pBmp->nCookie[ 1 ] = 'M'; // 0x4d pBmp->nSizeFile = 0; pBmp->nReserved1 = 0; pBmp->nReserved2 = 0; #if VIDEO_SCREENSHOT_PALETTE pBmp->nOffsetData = sizeof(WinBmpHeader_t) + (256 * sizeof(bgra_t)); #else pBmp->nOffsetData = sizeof(WinBmpHeader_t); #endif pBmp->nStructSize = 0x28; // sizeof( WinBmpHeader_t ); pBmp->nWidthPixels = nWidth; pBmp->nHeightPixels = nHeight; pBmp->nPlanes = 1; #if VIDEO_SCREENSHOT_PALETTE pBmp->nBitsPerPixel = 8; #else pBmp->nBitsPerPixel = nBitsPerPixel; #endif pBmp->nCompression = BI_RGB; // none pBmp->nSizeImage = 0; pBmp->nXPelsPerMeter = 0; pBmp->nYPelsPerMeter = 0; #if VIDEO_SCREENSHOT_PALETTE pBmp->nPaletteColors = 256; #else pBmp->nPaletteColors = 0; #endif pBmp->nImportantColors = 0; } //=========================================================================== static void Video_MakeScreenShot(FILE *pFile, const VideoScreenShot_e ScreenShotType) { WinBmpHeader_t *pBmp = &g_tBmpHeader; Video_SetBitmapHeader( pBmp, ScreenShotType == SCREENSHOT_280x192 ? GetFrameBufferBorderlessWidth()/2 : GetFrameBufferBorderlessWidth(), ScreenShotType == SCREENSHOT_280x192 ? GetFrameBufferBorderlessHeight()/2 : GetFrameBufferBorderlessHeight(), 32 ); // char sText[256]; // sprintf( sText, "sizeof: BITMAPFILEHEADER = %d\n", sizeof(BITMAPFILEHEADER) ); // = 14 // MessageBox( g_hFrameWindow, sText, "Info 1", MB_OK ); // sprintf( sText, "sizeof: BITMAPINFOHEADER = %d\n", sizeof(BITMAPINFOHEADER) ); // = 40 // MessageBox( g_hFrameWindow, sText, "Info 2", MB_OK ); char sIfSizeZeroOrUnknown_BadWinBmpHeaderPackingSize54[ sizeof( WinBmpHeader_t ) == (14 + 40) ]; /**/ sIfSizeZeroOrUnknown_BadWinBmpHeaderPackingSize54[0]=0; // Write Header fwrite( pBmp, sizeof( WinBmpHeader_t ), 1, pFile ); uint32_t *pSrc; #if VIDEO_SCREENSHOT_PALETTE // Write Palette Data pSrc = ((uint8_t*)g_pFramebufferinfo) + sizeof(BITMAPINFOHEADER); int nLen = g_tBmpHeader.nPaletteColors * sizeof(bgra_t); // RGBQUAD fwrite( pSrc, nLen, 1, pFile ); pSrc += nLen; #endif // Write Pixel Data // No need to use GetDibBits() since we already have http://msdn.microsoft.com/en-us/library/ms532334.aspx // @reference: "Storing an Image" http://msdn.microsoft.com/en-us/library/ms532340(VS.85).aspx pSrc = (uint32_t*) g_pFramebufferbits; int xSrc = GetFrameBufferBorderWidth(); int ySrc = GetFrameBufferBorderHeight(); VideoFrameBufferAdjust(xSrc, ySrc, true); // TC: Hacky-fix for GH#341 & GH#356 // Lines stored in reverse, so invert the y-adjust value pSrc += xSrc; // Skip left border pSrc += ySrc * GetFrameBufferWidth(); // Skip top border if( ScreenShotType == SCREENSHOT_280x192 ) { pSrc += GetFrameBufferWidth(); // Start on odd scanline (otherwise for 50% scanline mode get an all black image!) uint32_t aScanLine[ 280 ]; uint32_t *pDst; // 50% Half Scan Line clears every odd scanline. // SHIFT+PrintScreen saves only the even rows. // NOTE: Keep in sync with _Video_RedrawScreen() & Video_MakeScreenShot() for( UINT y = 0; y < GetFrameBufferBorderlessHeight()/2; y++ ) { pDst = aScanLine; for( UINT x = 0; x < GetFrameBufferBorderlessWidth()/2; x++ ) { *pDst++ = pSrc[1]; // correction for left edge loss of scaled scanline [Bill Buckel, B#18928] pSrc += 2; // skip odd pixels } fwrite( aScanLine, sizeof(uint32_t), GetFrameBufferBorderlessWidth()/2, pFile ); pSrc += GetFrameBufferWidth(); // scan lines doubled - skip odd ones pSrc += GetFrameBufferBorderWidth()*2; // Skip right border & next line's left border } } else { for( UINT y = 0; y < GetFrameBufferBorderlessHeight(); y++ ) { fwrite( pSrc, sizeof(uint32_t), GetFrameBufferBorderlessWidth(), pFile ); pSrc += GetFrameBufferWidth(); } } #endif // SCREENSHOT_BMP #if SCREENSHOT_TGA TargaHeader_t *pHeader = &g_tTargaHeader; memset( (void*)pHeader, 0, sizeof( TargaHeader_t ) ); pHeader->iImageType = TARGA_RGB; pHeader->nWidthPixels = FRAMEBUFFER_W; pHeader->nHeightPixels = FRAMEBUFFER_H; pHeader->nBitsPerPixel = 24; #endif // SCREENSHOT_TGA } //=========================================================================== static void Video_SaveScreenShot( const char *pScreenShotFileName, const VideoScreenShot_e ScreenShotType ) { FILE *pFile = fopen( pScreenShotFileName, "wb" ); if( pFile ) { Video_MakeScreenShot( pFile, ScreenShotType ); fclose( pFile ); } if( g_bDisplayPrintScreenFileName ) { MessageBox( g_hFrameWindow, pScreenShotFileName, "Screen Captured", MB_OK ); } } //=========================================================================== void Config_Load_Video() { REGLOAD(TEXT(REGVALUE_VIDEO_MODE ),&g_eVideoType); REGLOAD(TEXT(REGVALUE_VIDEO_HALF_SCAN_LINES),&g_uHalfScanLines); REGLOAD(TEXT(REGVALUE_VIDEO_MONO_COLOR ),&g_nMonochromeRGB); if (g_eVideoType >= NUM_VIDEO_MODES) g_eVideoType = VT_COLOR_MONITOR; } void Config_Save_Video() { REGSAVE(TEXT(REGVALUE_VIDEO_MODE ),g_eVideoType); REGSAVE(TEXT(REGVALUE_VIDEO_HALF_SCAN_LINES),g_uHalfScanLines); REGSAVE(TEXT(REGVALUE_VIDEO_MONO_COLOR ),g_nMonochromeRGB); } // ____________________________________________________________________ //=========================================================================== static void videoCreateDIBSection() { // CREATE THE DEVICE CONTEXT HWND window = GetDesktopWindow(); HDC dc = GetDC(window); if (g_hDeviceDC) { DeleteDC(g_hDeviceDC); } g_hDeviceDC = CreateCompatibleDC(dc); // CREATE THE FRAME BUFFER DIB SECTION if (g_hDeviceBitmap) DeleteObject(g_hDeviceBitmap); g_hDeviceBitmap = CreateDIBSection( dc, g_pFramebufferinfo, DIB_RGB_COLORS, (LPVOID *)&g_pFramebufferbits,0,0 ); SelectObject(g_hDeviceDC,g_hDeviceBitmap); // CREATE THE OFFSET TABLE FOR EACH SCAN LINE IN THE FRAME BUFFER // DRAW THE SOURCE IMAGE INTO THE SOURCE BIT BUFFER ZeroMemory( g_pFramebufferbits, GetFrameBufferWidth()*GetFrameBufferHeight()*sizeof(bgra_t) ); NTSC_VideoInit( g_pFramebufferbits ); }