]> Shamusworld >> Repos - virtualjaguar/blobdiff - src/vj.cpp
Initial changeset to experimental branch
[virtualjaguar] / src / vj.cpp
index 376c3e2a1e73aa4ba66585d36579b8474ba46501..0619b0523d070f2de61b07053a0ca800aaffa9cf 100644 (file)
 //
 // Virtual Jaguar Emulator
 //
-// by cal2
+// Original codebase by David Raingeard (Cal2)
 // GCC/SDL port by Niels Wagenaar (Linux/WIN32) and Caz (BeOS)
-// Cleanups/fixes by James L. Hammons
+// Cleanups/fixes/enhancements by James L. Hammons and Adam Green
 //
 
-// Added by SDLEMU (http://sdlemu.ngemu.com)
-// Added for GCC UNIX compatibility
-#ifdef __GCCUNIX__
-#include <unistd.h>
-#endif // __GCCUNIX__
-
-#include <time.h>
 #include <SDL.h>
-//#include "SDLptc.h"                  // Ick! Aargh! Bleah!
+#include <time.h>
+#include "file.h"
+//#include "gui.h"
 #include "jaguar.h"
-#include "crc32.h"
-#include "unzip.h"
+#include "log.h"
+#include "memory.h"
+#include "sdlemu_opengl.h"
+#include "settings.h"                                                          // Pull in "vjs" struct
+#include "video.h"
+
+// Uncomment this to use built-in BIOS/CD-ROM BIOS
+// You'll need a copy of jagboot.h & jagcd.h for this to work...!
+//#define USE_BUILT_IN_BIOS
+
+// Uncomment this for an official Virtual Jaguar release
+//#define VJ_RELEASE_VERSION "1.1.0"
+#warning !!! FIX !!! Figure out how to use this in GUI.CPP as well!
+
+#ifdef USE_BUILT_IN_BIOS
+#include "jagboot.h"
+#include "jagcd.h"
+#endif
 
-// Uncomment this for speed control
-//#define SPEED_CONTROL
 
 // Private function prototypes
 
-uint32 JaguarLoadROM(uint8 *, char *);
-void JaguarLoadCart(uint8 *, char *);
-
-// External variables
-
-//These two should be local!
-extern bool jaguar_use_bios;
-extern bool dsp_enabled;
-
-extern uint8 * jaguar_mainRam;
-extern uint8 * jaguar_bootRom;
-extern uint8 * jaguar_mainRom;
-
-// Various paths
-
-static char * jaguar_bootRom_path = "./bios/jagboot.rom";
-//static char  *jaguar_bootRom_path="c:/jaguarEmu/newload.img";
-//static char  *jaguar_bootRom_path="./bios/JagOS.bin";
-char * jaguar_eeproms_path = "./eeproms/";
-char jaguar_boot_dir[1024];
-
-SDL_Surface * surface, * mainSurface;
-SDL_Joystick * joystick;
-Uint32 mainSurfaceFlags = SDL_SWSURFACE;
-
-//Console console;
-//Surface * surface;
-//Format format(16, 0x007C00, 0x00003E0, 0x0000001F);
-bool finished = false;
-bool fullscreen = false;
-bool hardwareTypeNTSC = true;                  // Set to false for PAL
-
-bool useJoystick = false;
-
-
-// Added/changed by SDLEMU http://sdlemu.ngemu.com
-
-uint32 totalFrames;//so we can grab this from elsewhere...
-int main(int argc, char * argv[])
+//
+// The main emulator loop (what else?)
+//
+//Maybe we should move the video stuff to TOM? Makes more sense to put it there...
+//Actually, it would probably be better served in VIDEO.CPP... !!! FIX !!! [DONE]
+//uint32 totalFrames;//temp, so we can grab this from elsewhere...
+int main_old(int argc, char * argv[])
 {
-       uint32 startTime;//, totalFrames;//, endTime;//, w, h;
-//     int32 * vs;
-       uint32 nNormalLast = 0;
-       int32 nNormalFrac = 0; 
-//     int32 i = 0;
-//unused       int32 nTime = 0;
-//unused       int32 nCount = 0;
-    int32 nFrameskip = 0;                                                              // Default: Show every frame
-    int32 nFrame = 0;                                                                  // No. of Frame
-    int32 nJoyport = 0;                                                                        // Joystick port
-
-       printf("Virtual Jaguar/SDL v1.0.5 (GCC/SDL Port)\n");
-       printf("Based upon Virtual Jaguar core v1.0.0 by cal2 of Potato emulation.\n");
-       printf("Written by Niels Wagenaar (Linux/WIN32) and Caz (BeOS)\n");
-       printf("Portions massaged by James L. Hammons (WIN32)\n");
+//NOTE: This isn't actually used anywhere... !!! FIX !!!
+       int32 nFrameskip = 0;                                                   // Default: Show every frame
+
+#ifdef VJ_RELEASE_VERSION
+       printf("Virtual Jaguar GCC/SDL Portable Jaguar Emulator v%s\n", VJ_RELEASE_VERSION);
+#else
+       printf("Virtual Jaguar GCC/SDL Portable Jaguar Emulator SVN %s\n", __DATE__);
+#endif
+       printf("Based upon Virtual Jaguar core v1.0.0 by David Raingeard.\n");
+       printf("Written by Niels Wagenaar (Linux/WIN32), Carwin Jones (BeOS),\n");
+       printf("James L. Hammons (WIN32) and Adam Green (MacOS)\n");
        printf("Contact: http://sdlemu.ngemu.com/ | sdlemu@ngemu.com\n");
 
-//    console.option("windowed output");
+       bool haveCart = false;                                                  // Assume there is no cartridge...!
 
-       // BIOS is now ON by default--use the -nobios switch to turn it off!
-       jaguar_use_bios = true;
-       bool haveCart = false;                                                                  // Assume there is no cartridge...!
+       LogInit("vj.log");
+       LoadVJSettings();                                                               // Get config file settings...
 
-       // Checking the switches ;)
+       // Check the switches... ;-)
+       // NOTE: Command line switches can override any config file settings, thus the
+       //       proliferation of the noXXX switches. ;-)
 
        for(int i=1; i<argc || argv[i]!=NULL; i++)
        {
                // This would be the most likely place to do the cart loading...
                if (argv[i][0] != '-')
-                       haveCart = true;                                                                // It looks like we have a cartridge!
-
-               if (!strcmp(argv[i], "-fullscreen")) 
-//             {
-                       fullscreen = true;
-//                     console.option("fullscreen output");
-//             }
+                       haveCart = true;                                                // It looks like we have a cartridge!
 
-//We *don't* need this option!
-/*             if (!strcmp(argv[i], "-window")) 
-//                     console.option("windowed output");
-                       fullscreen = false;*/
-
-               if (!strcmp(argv[i], "-joystick")) 
-//                     console.option("joystick enabled");
-                       useJoystick = true;
+               if (!strcmp(argv[i], "-joystick"))
+                       vjs.useJoystick = true;
 
                if (!strcmp(argv[i], "-joyport"))
                {
-                       nJoyport = atoi(argv[++i]) + 1;
-                       if (nJoyport > 3)
-                               nJoyport = 3;
+                       vjs.joyport = atoi(argv[++i]) + 1;
+                       if (vjs.joyport > 3)
+                               vjs.joyport = 3;
                }
 
                if (!strcmp(argv[i], "-frameskip"))
@@ -122,278 +84,131 @@ int main(int argc, char * argv[])
                        nFrameskip = atoi(argv[++i]) + 1;
                        if (nFrameskip > 10)
                                nFrameskip = 10;
-#ifdef SPEED_CONTROL
-                       nFrameskip = 0;
-#endif
                }
 
+               if (!strcmp(argv[i], "-bios"))
+                       vjs.useJaguarBIOS = true;
+
                if (!strcmp(argv[i], "-nobios"))
-                       jaguar_use_bios = false;
+                       vjs.useJaguarBIOS = false;
+
+               if (!strcmp(argv[i], "-dsp"))
+                       vjs.DSPEnabled = true;
+
+               if (!strcmp(argv[i], "-nodsp"))
+                       vjs.DSPEnabled = false;
+
+               if (!strcmp(argv[i], "-pipeline"))
+                       vjs.usePipelinedDSP = true;
+
+               if (!strcmp(argv[i], "-nopipeline"))
+                       vjs.usePipelinedDSP = false;
+
+               if (!strcmp(argv[i], "-gl"))
+                       vjs.useOpenGL = true;
 
-               if (!strcmp(argv[i], "-dspon"))
-                       dsp_enabled = 1;
+               if (!strcmp(argv[i], "-nogl"))
+                       vjs.useOpenGL = false;
+
+               if (!strcmp(argv[i], "-fullscreen"))
+                       vjs.fullscreen = true;
+
+               if (!strcmp(argv[i], "-window"))
+                       vjs.fullscreen = false;
 
                if (!strcmp(argv[i], "-pal"))
-                       hardwareTypeNTSC = false;
+                       vjs.hardwareTypeNTSC = false;
+
+               if (!strcmp(argv[i], "-ntsc"))
+                       vjs.hardwareTypeNTSC = true;
 
-               if (!strcmp(argv[i], "-help") || !strcmp(argv[i], "-?"))
+               if (!strcmp(argv[i], "--help") || !strcmp(argv[i], "-?"))
                {
                    printf("Usage: \n\n");
                        printf("vj [romfile] [switches]\n");
-                       printf("  -? or -help     : Display usage and switches               \n");
-                       printf("  -fullscreen     : Enable fullscreen mode (windowed default)\n");
-                       printf("  -frameskip 1-10 : Enable frameskip 1 (default) - 10        \n");
-                       printf("  -joystick       : Enable joystick/gamepad                  \n");
-                       printf("  -joyport   0-3  : Select desired joystick port             \n");
-                       printf("  -nobios         : Boot cart without using Jaguar BIOS ROM  \n");
-                       printf("  -dspon          : Force VJ to use the DSP                  \n");
-                       printf("  -pal            : Force VJ to PAL mode (default is NTSC)   \n");
+                       printf("  -? or --help    : Display usage and switches                \n");
+                       printf("  -frameskip 1-10 : Enable frameskip 1 - 10 (default: none)   \n");
+                       printf("  -joystick       : Enable joystick/gamepad                   \n");
+                       printf("  -joyport 0-3    : Select desired joystick port              \n");
+                       printf("  -bios           : Boot cart using Jaguar BIOS ROM           \n");
+                       printf("  -nobios         : Boot cart without using Jaguar BIOS ROM   \n");
+                       printf("  -dsp            : Force VJ to use the DSP                   \n");
+                       printf("  -nodsp          : Force VJ to run without the DSP           \n");
+                       printf("  -pipeline       : Use the DSP pipelined core                \n");
+                       printf("  -nopipeline     : Use the DSP non-pipelined core            \n");
+                       printf("  -gl             : Use OpenGL rendering                      \n");
+                       printf("  -nogl           : Use old non-OpenGL rendering              \n");
+                       printf("  -fullscreen     : Enable fullscreen mode (default: windowed)\n");
+                       printf("  -window         : Enable windowed mode                      \n");
+                       printf("  -pal            : Force VJ to PAL mode (default: NTSC)      \n");
+                       printf("  -ntsc           : Force VJ to NTSC mode                     \n");
                        printf("\nInvoking Virtual Jagaur with no ROM file will cause it to boot up\n");
-                       printf("with the Jaguar BIOS.\n");
+                       printf("with the VJ GUI.\n");
                        return 1;
                }
     }
 
-       getcwd(jaguar_boot_dir, 1024);
-       log_init("vj.log");
-       memory_init();
-       version_init();
-       version_display(log_get());
-       jaguar_init();
-
-       // Get the BIOS ROM
-       if (jaguar_use_bios)
-               JaguarLoadROM(jaguar_bootRom, jaguar_bootRom_path);
-
-       SET32(jaguar_mainRam, 0, 0x00200000);                   // Set top of stack...
-
-       // Get the cartridge ROM (if passed in)
-       if (haveCart)
-               JaguarLoadCart(jaguar_mainRom, argv[1]);
-
-       jaguar_reset();
-       
-       // Set up the backbuffer
-       int16 * backbuffer = (int16 *)malloc(845 * 525 * sizeof(int16));
-       memset(backbuffer, 0xAA, tom_getVideoModeWidth() * tom_getVideoModeHeight() * sizeof(int16));
-
        // Set up SDL library
-       if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK | SDL_INIT_AUDIO | SDL_INIT_TIMER | SDL_INIT_NOPARACHUTE) < 0)
+       if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK | SDL_INIT_AUDIO | SDL_INIT_TIMER) < 0)
        {
-               WriteLog("VJ: Could not initialize the SDL library: %s", SDL_GetError());
-               exit(1);
+               WriteLog("VJ: Could not initialize the SDL library: %s\n", SDL_GetError());
+               return -1;
        }
 
-       // Let's get proper info about the platform we're running on.
-       const SDL_VideoInfo * info = SDL_GetVideoInfo();
-
-       if (!info)
-       {
-               WriteLog("VJ: SDL is unable to get the video query: %s\n", SDL_GetError());
-               exit(1);
-       }
-
-       if (info->hw_available)
-               mainSurfaceFlags = SDL_HWSURFACE | SDL_HWPALETTE | SDL_DOUBLEBUF;
-
-       if (info->blit_hw)
-               mainSurfaceFlags |= SDL_HWACCEL;
-
-       if (fullscreen)
-               mainSurfaceFlags |= SDL_FULLSCREEN;
-
-       // Note: mainSurface is *never* used again!
-       //Not true--had to look at what's what here...
-       mainSurface = SDL_SetVideoMode(tom_getVideoModeWidth(), tom_getVideoModeHeight(), 16, mainSurfaceFlags);
+       WriteLog("VJ: SDL successfully initialized.\n");
 
-       if (mainSurface == NULL)
-       {
-               WriteLog("VJ: SDL is unable to set the video mode: %s\n", SDL_GetError());
-               exit(1);
-       }
+//     WriteLog("Initializing memory subsystem...\n");
+//     MemoryInit();
+#ifdef VJ_RELEASE_VERSION
+       WriteLog("Virtual Jaguar %s (Last full build was on %s %s)\n", VJ_RELEASE_VERSION, __DATE__, __TIME__);
+#else
+       WriteLog("Virtual Jaguar SVN %s (Last full build was on %s %s)\n", __DATE__, __DATE__, __TIME__);
+#endif
+       WriteLog("Initializing jaguar subsystem...\n");
+       JaguarInit();
 
-       SDL_WM_SetCaption("Virtual Jaguar", "Virtual Jaguar");
+       // Get the BIOS ROM
+#ifdef USE_BUILT_IN_BIOS
+       WriteLog("VJ: Using built in BIOS/CD BIOS...\n");
+       memcpy(jaguarBootROM, jagBootROM, 0x20000);
+       memcpy(jaguarCDBootROM, jagCDROM, 0x40000);
+       BIOSLoaded = CDBIOSLoaded = true;
+#else
+// What would be nice here would be a way to check if the BIOS was loaded so that we
+// could disable the pushbutton on the Misc Options menu... !!! FIX !!! [DONE here, but needs to be fixed in GUI as well!]
+WriteLog("About to attempt to load BIOSes...\n");
+       BIOSLoaded = (JaguarLoadROM(jaguarBootROM, vjs.jagBootPath) == 0x20000 ? true : false);
+       WriteLog("VJ: BIOS is %savailable...\n", (BIOSLoaded ? "" : "not "));
+       CDBIOSLoaded = (JaguarLoadROM(jaguarCDBootROM, vjs.CDBootPath) == 0x40000 ? true : false);
+       WriteLog("VJ: CD BIOS is %savailable...\n", (CDBIOSLoaded ? "" : "not "));
+#endif
 
-       // Create the primary SDL display (16 BPP, 5/5/5 RGB format)
-//     surface = new Surface(tom_getVideoModeWidth(), tom_getVideoModeHeight(), format);
-//Format format(16, 0x007C00, 0x00003E0, 0x0000001F);
-       surface = SDL_CreateRGBSurface(SDL_SWSURFACE, tom_getVideoModeWidth(),
-               tom_getVideoModeHeight(), 16, 0x7C00, 0x03E0, 0x001F, 0);
-       if (surface == NULL)
-       {
-               WriteLog("VJ: Could not create primary SDL surface: %s", SDL_GetError());
-               exit(1);
-       }
+       SET32(jaguarMainRAM, 0, 0x00200000);                    // Set top of stack...
 
-       // Initialize Joystick support under SDL
-//     if (console.JoyEnabled() == 1)
-       if (useJoystick)
-       {
-               if (SDL_NumJoysticks() <= 0)
-               {
-//             console.option("joystick disabled");
-                       useJoystick = false;
-                       printf("No joystick(s) or joypad(s) detected on your system. Using keyboard...\n");
-               }
-               else
-               {
-//                     if ((console.joystick = SDL_JoystickOpen(nJoyport)) == 0)
-                       if ((joystick = SDL_JoystickOpen(nJoyport)) == 0)
-                       {
-//                             console.option("joystick disabled");
-                               useJoystick = false;
-                               printf("Unable to open a Joystick on port: %d\n", (int)nJoyport);
-                       }
-                       else
-                               printf("Using: %s\n", SDL_JoystickName(nJoyport));
-               }
-       }
+WriteLog("Initializing video subsystem...\n");
+       VideoInit();
+WriteLog("Initializing GUI subsystem...\n");
+#warning "!!! FIX !!! (GUIInit())"
+//     GUIInit();
 
-       // Open the display and start emulating some 3l337 Atari Jaguar games :P
-//     console.open("Virtual Jaguar", tom_getVideoModeWidth(), tom_getVideoModeHeight(), format);
+       // Now with crunchy GUI goodness!
+WriteLog("About to start GUI...\n");
+#warning "!!! FIX !!! (GUIMain(...))"
+//     GUIMain(haveCart ? argv[1] : NULL);
 
-       totalFrames = 0;
-       startTime = clock();
-       nNormalLast = 0;                                                                        // Last value of timeGetTime()
-       nNormalFrac = 0;                                                                        // Extra fraction we did
-       nNormalLast = SDL_GetTicks();                                           //timeGetTime();
+//This is no longer accurate...!
+//     int elapsedTime = clock() - startTime;
+//     int fps = (1000 * totalFrames) / elapsedTime;
+//     WriteLog("VJ: Ran at an average of %i FPS.\n", fps);
 
-       while (!finished)
-       {
-#ifdef SPEED_CONTROL
-               nTime = SDL_GetTicks() - nNormalLast;                   // calcule le temps écoulé depuis le dernier affichage
-                                                                                                               // nTime est en mili-secondes.
-               // détermine le nombre de trames à passer + 1
-               nCount = (nTime * 600 - nNormalFrac) / 10000;
-
-               // si le nombre de trames à passer + 1 est nul ou négatif,
-               // ne rien faire pendant 2 ms
-               if (nCount <= 0) 
-               { 
-                       //Sleep(2); 
-                       //SDL_Delay(1);
-               } // No need to do anything for a bit
-               else
-               {
-                       nNormalFrac += nCount * 10000;                          // 
-                       nNormalLast += nNormalFrac / 600;                       // add the duration of nNormalFrac frames
-                       nNormalFrac %= 600;                                                     // 
-
-                       // Pas plus de 9 (10-1) trames non affichées 
-                       if (nCount > 10)
-                               nCount = 10;
-                       for(int i=0; i<nCount-1; i++)
-                               jaguar_exec(backbuffer, false);
-#endif
-            // Setting up new backbuffer with new pixels and data
-//                     jaguar_exec(backbuffer, true);
-                       JaguarExecute(backbuffer, true);
-                       totalFrames++;
-
-                       // Simple frameskip
-                       if (nFrame == nFrameskip)
-                       {
-//                             int32 * vs = (int32 *)surface->lock();
-                               if (SDL_MUSTLOCK(surface))
-                                       while (SDL_LockSurface(surface) < 0)
-                                               SDL_Delay(10);
-//                             uint8 * vs = (Uint8 *)surface->pixels;
-//                             memcpy(vs, backbuffer, tom_width * tom_height * 2);
-                               memcpy(surface->pixels, backbuffer, tom_width * tom_height * 2);
-//                             surface->unlock();
-                               if (SDL_MUSTLOCK(surface))
-                                       SDL_UnlockSurface(surface);
-//                             surface->copy(console);
-                               SDL_Rect srcrect, dstrect;
-                               srcrect.x = srcrect.y = 0, srcrect.w = surface->w, srcrect.h = surface->h;
-                               dstrect.x = dstrect.y = 0, dstrect.w = surface->w, dstrect.h = surface->h;
-//                             SDL_LowerBlit(surface, &srcrect, dst.surface, &dstrect);
-                               SDL_BlitSurface(surface, &srcrect, mainSurface, &dstrect);
-//                             dst.updates[dst.nupdates++] = dstrect;
-//                             console.update();
-                           SDL_Flip(mainSurface);      
-//                             nupdates = 0;
-
-                               nFrame = 0;
-                       }
-                       else
-                               nFrame++;
-
-                       joystick_exec();
-                       
-#ifdef SPEED_CONTROL
-               }
-#endif
-       }
+       JaguarDone();
+       VideoDone();
+//     MemoryDone();
+       LogDone();
 
-       int elapsedTime = clock() - startTime;
-       int fps = (1000 * totalFrames) / elapsedTime;
-       fprintf(log_get(), "Statistics: %i FPS\n", fps);
-
-       jaguar_done();
-       version_done();
-       memory_done();
-       log_done();     
-//     console.close();                                                                        // Close SDL items as last!
-       SDL_JoystickClose(joystick);
-       SDL_FreeSurface(surface);
+       // Free SDL components last...!
        SDL_QuitSubSystem(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK | SDL_INIT_AUDIO | SDL_INIT_TIMER);
        SDL_Quit();
 
-    return 0;
-}
-
-//
-// Generic ROM loading
-//
-uint32 JaguarLoadROM(uint8 * rom, char * path)
-{
-       uint32 romSize;
-
-       WriteLog("JagEm: Loading %s...", path);
-
-       char * ext = strrchr(path, '.');
-       if (strcmpi(ext, ".zip") == 0)
-       {
-               // Handle ZIP file loading here...
-               WriteLog("(ZIPped)...");
-
-               if (load_zipped_file(0, 0, path, NULL, &rom, &romSize) == -1)
-               {
-                       WriteLog("Failed!\n");
-                       log_done();
-                       exit(0);
-               }
-       }
-       else
-       {
-               FILE * fp = fopen(path, "rb");
-
-               if (fp == NULL)
-               {
-                       WriteLog("Failed!\n");
-                       log_done();
-                       exit(0);
-               }
-
-               fseek(fp, 0, SEEK_END);
-               romSize = ftell(fp);
-               fseek(fp, 0, SEEK_SET);
-               fread(rom, 1, romSize, fp);
-               fclose(fp);
-       }
-
-       WriteLog("OK (%i bytes)\n", romSize);
-       return romSize;
-}
-
-//
-// Jaguar cartridge ROM loading
-//
-void JaguarLoadCart(uint8 * mem, char * path)
-{
-       uint32 romsize = JaguarLoadROM(mem, path);
-       jaguar_mainRom_crc32 = crc32_calcCheckSum(jaguar_mainRom, romsize);
-       WriteLog( "CRC: %08X\n", (unsigned int)jaguar_mainRom_crc32);
-       eeprom_init();
+       return 0;
 }