]> Shamusworld >> Repos - virtualjaguar/blobdiff - src/vj.cpp
Initial changeset to experimental branch
[virtualjaguar] / src / vj.cpp
index e33ffe25f00887e4273ff8d11e8155d6b95f4812..0619b0523d070f2de61b07053a0ca800aaffa9cf 100644 (file)
@@ -1,85 +1,62 @@
 //
 // Virtual Jaguar Emulator
 //
-// Original codebase by Cal2
+// Original codebase by David Raingeard (Cal2)
 // GCC/SDL port by Niels Wagenaar (Linux/WIN32) and Caz (BeOS)
 // Cleanups/fixes/enhancements by James L. Hammons and Adam Green
 //
 
-#ifdef __GCCUNIX__
-#include <unistd.h>
-#endif
-
-#include <dirent.h>                                                                    // POSIX, but should compile with linux & mingw...
-#include <time.h>
 #include <SDL.h>
+#include <time.h>
+#include "file.h"
+//#include "gui.h"
 #include "jaguar.h"
-#include "crc32.h"
-#include "zlib.h"
-#include "unzip.h"
-#include "video.h"
-#include "gui.h"
+#include "log.h"
+#include "memory.h"
 #include "sdlemu_opengl.h"
 #include "settings.h"                                                          // Pull in "vjs" struct
+#include "video.h"
 
-// Uncomment this for speed control (?)
-//#define SPEED_CONTROL
-
-// Private function prototypes
-
-uint32 JaguarLoadROM(uint8 *, char *);
-void JaguarLoadCart(uint8 *, char *);
-int gzfilelength(gzFile gd);
-
-// External variables
-
-extern uint8 * jaguar_mainRam;
-extern uint8 * jaguar_bootRom;
-extern uint8 * jaguar_mainRom;
+// 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
 
-// Various paths
+// 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!
 
-//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[MAX_PATH];
+#ifdef USE_BUILT_IN_BIOS
+#include "jagboot.h"
+#include "jagcd.h"
+#endif
 
-//These should go into video.cpp...
-SDL_Surface * surface, * mainSurface;
-int16 * backbuffer = NULL;
-SDL_Joystick * joystick;
-Uint32 mainSurfaceFlags = SDL_SWSURFACE;
 
-bool finished = false;
-bool showGUI = false;
-bool showMessage = false;
-uint32 showMessageTimeout;
-char messageBuffer[200];
+// Private function prototypes
 
 //
 // 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(int argc, char * argv[])
+//uint32 totalFrames;//temp, so we can grab this from elsewhere...
+int main_old(int argc, char * argv[])
 {
-       uint32 startTime;//, totalFrames;//, endTime;//, w, h;
-       uint32 nNormalLast = 0;
-       int32 nNormalFrac = 0; 
-    int32 nFrameskip = 0;                                                      // Default: Show every frame
-    int32 nFrame = 0;                                                          // No. of Frame
-
-       printf("Virtual Jaguar GCC/SDL Portable Jaguar Emulator v1.0.6\n");
-       printf("Based upon Virtual Jaguar core v1.0.0 by Cal2 of Potato emulation.\n");
-       printf("Written by Niels Wagenaar (Linux/WIN32), Caz (BeOS),\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");
 
        bool haveCart = false;                                                  // Assume there is no cartridge...!
 
-       log_init("vj.log");
+       LogInit("vj.log");
        LoadVJSettings();                                                               // Get config file settings...
 
        // Check the switches... ;-)
@@ -92,7 +69,7 @@ int main(int argc, char * argv[])
                if (argv[i][0] != '-')
                        haveCart = true;                                                // It looks like we have a cartridge!
 
-               if (!strcmp(argv[i], "-joystick")) 
+               if (!strcmp(argv[i], "-joystick"))
                        vjs.useJoystick = true;
 
                if (!strcmp(argv[i], "-joyport"))
@@ -107,9 +84,6 @@ 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"))
@@ -136,10 +110,10 @@ int main(int argc, char * argv[])
                if (!strcmp(argv[i], "-nogl"))
                        vjs.useOpenGL = false;
 
-               if (!strcmp(argv[i], "-fullscreen")) 
+               if (!strcmp(argv[i], "-fullscreen"))
                        vjs.fullscreen = true;
 
-               if (!strcmp(argv[i], "-window")) 
+               if (!strcmp(argv[i], "-window"))
                        vjs.fullscreen = false;
 
                if (!strcmp(argv[i], "-pal"))
@@ -148,11 +122,11 @@ int main(int argc, char * argv[])
                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("  -? 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");
@@ -169,234 +143,72 @@ int main(int argc, char * argv[])
                        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);
-       memory_init();
-       version_init();
-       version_display(log_get());
-       jaguar_init();
-
-       // Get the BIOS ROM
-       if (vjs.useJaguarBIOS)
-               JaguarLoadROM(jaguar_bootRom, vjs.jagBootPath);
-
-       SET32(jaguar_mainRam, 0, 0x00200000);                   // Set top of stack...
-
-       // Set up the backbuffer
-//To be safe, this should be 1280 * 625 * 2...
-//     backbuffer = (int16 *)malloc(845 * 525 * sizeof(int16));
-       backbuffer = (int16 *)malloc(1280 * 625 * sizeof(int16));
-       memset(backbuffer, 0x44, VIRTUAL_SCREEN_WIDTH * VIRTUAL_SCREEN_HEIGHT * sizeof(int16));
-
-       InitVideo();
-       InitGUI();
-
-       // Get the cartridge ROM (if passed in)
-       // Now with crunchy GUI goodness!
-//     JaguarLoadCart(jaguar_mainRom, (haveCart ? argv[1] : (char *)""));
-       JaguarLoadCart(jaguar_mainRom, (haveCart ? argv[1] : vjs.ROMPath));
-
-       jaguar_reset();
-       
-       totalFrames = 0;
-       startTime = clock();
-       nNormalLast = 0;                                                                        // Last value of timeGetTime()
-       nNormalFrac = 0;                                                                        // Extra fraction we did
-       nNormalLast = SDL_GetTicks();                                           //timeGetTime();
-
-       while (!finished)
+       // Set up SDL library
+       if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK | SDL_INIT_AUDIO | SDL_INIT_TIMER) < 0)
        {
-#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
-            // Set up new backbuffer with new pixels and data
-                       JaguarExecute(backbuffer, true);
-                       totalFrames++;
-//WriteLog("Frame #%u...\n", totalFrames);
-//extern bool doDSPDis;
-//if (totalFrames == 373)
-//     doDSPDis = true;
-
-                       // Some QnD GUI stuff here...
-                       if (showGUI)
-                       {
-                               extern uint32 gpu_pc, dsp_pc;
-                               DrawString(backbuffer, 8, 8, false, "GPU PC: %08X", gpu_pc);
-                               DrawString(backbuffer, 8, 16, false, "DSP PC: %08X", dsp_pc);
-                       }
-
-                       // Simple frameskip
-                       if (nFrame == nFrameskip)
-                       {
-                               RenderBackbuffer();
-                               nFrame = 0;
-                       }
-                       else
-                               nFrame++;
-
-                       joystick_exec();
-
-#ifdef SPEED_CONTROL
-               }
-#endif
+               WriteLog("VJ: Could not initialize the SDL library: %s\n", SDL_GetError());
+               return -1;
        }
 
-       int elapsedTime = clock() - startTime;
-       int fps = (1000 * totalFrames) / elapsedTime;
-       WriteLog("VJ: Ran at an average of %i FPS.\n", fps);
-
-       jaguar_done();
-       version_done();
-       memory_done();
-       VideoDone();                                                                    // Free SDL components last...!
-       log_done();     
-
-    return 0;
-}
+       WriteLog("VJ: SDL successfully initialized.\n");
 
-//
-// Generic ROM loading
-//
-uint32 JaguarLoadROM(uint8 * rom, char * path)
-{
-       uint32 romSize = 0;
-
-       char * ext = strrchr(path, '.');
-       if (ext != NULL)
-       {
-               WriteLog("VJ: Loading \"%s\"...", path);
-
-               if (stricmp(ext, ".zip") == 0)
-               {
-                       // Handle ZIP file loading here...
-                       WriteLog("(ZIPped)...");
-
-                       if (load_zipped_file(0, 0, path, NULL, &rom, &romSize) == -1)
-                       {
-                               WriteLog("Failed!\n");
-                               return 0;
-                       }
-               }
-               else
-               {
-/*                     FILE * fp = fopen(path, "rb");
-
-                       if (fp == NULL)
-                       {
-                               WriteLog("Failed!\n");
-                               return 0;
-                       }
-
-                       fseek(fp, 0, SEEK_END);
-                       romSize = ftell(fp);
-                       fseek(fp, 0, SEEK_SET);
-                       fread(rom, 1, romSize, fp);
-                       fclose(fp);*/
-
-                       gzFile fp = gzopen(path, "rb");
-
-                       if (fp == NULL)
-                       {
-                               WriteLog("Failed!\n");
-                               return 0;
-                       }
-
-                       romSize = gzfilelength(fp);
-                       gzseek(fp, 0, SEEK_SET);
-                       gzread(fp, rom, romSize);
-                       gzclose(fp);
-               }
-
-               WriteLog("OK (%i bytes)\n", romSize);
-       }
-
-       return romSize;
-}
-
-//
-// Jaguar cartridge ROM loading
-//
-void JaguarLoadCart(uint8 * mem, char * path)
-{
-       uint32 romSize = JaguarLoadROM(mem, path);
-
-       if (romSize == 0)
-       {
-               char newPath[2048];
-               WriteLog("VJ: Trying GUI...\n");
-
-//This is not *nix friendly for some reason...
-//             if (!UserSelectFile(path, newPath))
-               if (!UserSelectFile((strlen(path) == 0 ? (char *)"." : path), newPath))
-               {
-                       WriteLog("VJ: Could not find valid ROM in directory \"%s\"...\nAborting!\n", path);
-                       log_done();
-                       exit(0);
-               }
-
-               romSize = JaguarLoadROM(mem, newPath);
+//     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();
 
-               if (romSize == 0)
-               {
-                       WriteLog("VJ: Could not load ROM from file \"%s\"...\nAborting!\n", newPath);
-                       log_done();
-                       exit(0);
-               }
-       }
+       // 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
 
-       jaguar_mainRom_crc32 = crc32_calcCheckSum(jaguar_mainRom, romSize);
-       WriteLog("CRC: %08X\n", (unsigned int)jaguar_mainRom_crc32);
-       eeprom_init();
-}
+       SET32(jaguarMainRAM, 0, 0x00200000);                    // Set top of stack...
 
-//
-// Get the length of a (possibly) gzipped file
-//
-int gzfilelength(gzFile gd)
-{
-   int size = 0, length = 0;
-   unsigned char buffer[0x10000];
+WriteLog("Initializing video subsystem...\n");
+       VideoInit();
+WriteLog("Initializing GUI subsystem...\n");
+#warning "!!! FIX !!! (GUIInit())"
+//     GUIInit();
 
-   gzrewind(gd);
+       // Now with crunchy GUI goodness!
+WriteLog("About to start GUI...\n");
+#warning "!!! FIX !!! (GUIMain(...))"
+//     GUIMain(haveCart ? argv[1] : NULL);
 
-   do
-   {
-      // Read in chunks until EOF
-      size = gzread(gd, buffer, 0x10000);
+//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);
 
-      if (size <= 0)
-       break;
+       JaguarDone();
+       VideoDone();
+//     MemoryDone();
+       LogDone();
 
-      length += size;
-   }
-   while (!gzeof(gd));
+       // Free SDL components last...!
+       SDL_QuitSubSystem(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK | SDL_INIT_AUDIO | SDL_INIT_TIMER);
+       SDL_Quit();
 
-   gzrewind(gd);
-   return length;
+       return 0;
 }