460 lines
12 KiB
C
460 lines
12 KiB
C
#include <rg_system.h>
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#include <string.h>
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#define AUDIO_SAMPLE_RATE (22050)
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#define AUDIO_BUFFER_LENGTH (AUDIO_SAMPLE_RATE / 60 + 1)
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static rg_surface_t *updates[2];
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static rg_surface_t *currentUpdate;
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static rg_app_t *app;
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static int JoyState, LastKey, InMenu, InKeyboard;
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static int KeyboardCol, KeyboardRow, KeyboardKey;
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static int64_t KeyboardDebounce = 0;
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static int FrameStartTime;
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static int KeyboardEmulation, CropPicture;
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static char *PendingLoadSTA = NULL;
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#define BPS16
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#define BPP16
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#define UNIX
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#define GenericSetVideo SetVideo
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#define LSB_FIRST
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#define NARROW
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#define WIDTH 256
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#define HEIGHT 228
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#define XKEYS 12
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#define YKEYS 6
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void PutImage(void);
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static uint16_t BPal[256];
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static uint16_t XPal[80];
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static uint16_t XPal0;
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static uint16_t *XBuf;
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#include "MSX.h"
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#include "Console.h"
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#include "EMULib.h"
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#include "Sound.h"
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#include "Record.h"
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#include "Touch.h"
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#include "CommonMux.h"
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#include "msxfix.h"
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static Image NormScreen;
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const char *Title = "fMSX 6.0";
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const char *Disks[2][MAXDISKS + 1];
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static const unsigned char KBDKeys[YKEYS][XKEYS] = {
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{0x1B, CON_F1, CON_F2, CON_F3, CON_F4, CON_F5, CON_F6, CON_F7, CON_F8, CON_INSERT, CON_DELETE, CON_STOP},
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{'1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '='},
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{CON_TAB, 'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', CON_BS},
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{'^', 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ';', CON_ENTER},
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{'Z', 'X', 'C', 'V', 'B', 'N', 'M', ',', '.', '/', 0, 0},
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{'[', ']', ' ', ' ', ' ', ' ', ' ', '\\', '\'', 0, 0, 0}};
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static const char *BiosFolder = RG_BASE_PATH_BIOS "/msx";
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// We only check for absolutely essential files to avoid slowing down boot too much!
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static const char *BiosFiles[] = {
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"MSX.ROM",
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"MSX2.ROM",
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"MSX2EXT.ROM",
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// "MSX2P.ROM",
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// "MSX2PEXT.ROM",
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// "FMPAC.ROM",
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"DISK.ROM",
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"MSXDOS2.ROM",
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// "PAINTER.ROM",
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// "KANJI.ROM",
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};
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static inline void SubmitFrame(void)
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{
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int crop_v = CropPicture ? (ScanLines212 ? 8 : 18) : 0;
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currentUpdate->offset = crop_v * currentUpdate->stride;
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currentUpdate->height = HEIGHT - crop_v * 2;
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rg_display_submit(currentUpdate, 0);
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}
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int ProcessEvents(int Wait)
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{
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for (int i = 0; i < 16; ++i)
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KeyState[i] = 0xFF;
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JoyState = 0;
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uint32_t joystick = rg_input_read_gamepad();
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if (joystick & (RG_KEY_MENU | RG_KEY_OPTION))
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{
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if (joystick & RG_KEY_MENU)
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rg_gui_game_menu();
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else
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rg_gui_options_menu();
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return 0;
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}
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if (!InMenu && joystick == RG_KEY_SELECT)
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{
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InMenu = true;
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rg_audio_set_mute(true);
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MenuMSX();
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rg_audio_set_mute(false);
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rg_input_wait_for_key(RG_KEY_ANY, false, 500);
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InMenu = false;
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return 0;
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}
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if (joystick == RG_KEY_START)
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{
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InKeyboard = !InKeyboard;
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rg_input_wait_for_key(RG_KEY_ANY, false, 500);
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}
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if (InMenu)
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{
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if (joystick == RG_KEY_LEFT)
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LastKey = CON_LEFT;
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if (joystick == RG_KEY_RIGHT)
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LastKey = CON_RIGHT;
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if (joystick == RG_KEY_UP)
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LastKey = CON_UP;
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if (joystick == RG_KEY_DOWN)
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LastKey = CON_DOWN;
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if (joystick == RG_KEY_A)
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LastKey = CON_OK;
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if (joystick == RG_KEY_B)
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LastKey = CON_EXIT;
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}
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else if (InKeyboard)
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{
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if (joystick & (RG_KEY_LEFT | RG_KEY_RIGHT | RG_KEY_UP | RG_KEY_DOWN))
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{
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if (rg_system_timer() > KeyboardDebounce)
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{
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if (joystick == RG_KEY_LEFT)
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KeyboardCol--;
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if (joystick == RG_KEY_RIGHT)
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KeyboardCol++;
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if (joystick == RG_KEY_UP)
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KeyboardRow--;
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if (joystick == RG_KEY_DOWN)
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KeyboardRow++;
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KeyboardCol = RG_MIN(RG_MAX(KeyboardCol, 0), XKEYS - 1);
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KeyboardRow = RG_MIN(RG_MAX(KeyboardRow, 0), YKEYS - 1);
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PutImage();
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KeyboardDebounce = rg_system_timer() + 250000;
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}
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}
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else if (joystick == RG_KEY_A)
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{
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KeyboardKey = KBDKeys[KeyboardRow][KeyboardCol];
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KBD_SET(KeyboardKey);
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}
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else if (joystick == RG_KEY_B)
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{
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rg_input_wait_for_key(RG_KEY_ANY, false, 500);
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InKeyboard = false;
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}
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}
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else if (KeyboardEmulation)
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{
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if (joystick & RG_KEY_LEFT)
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KBD_SET(KBD_LEFT);
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if (joystick & RG_KEY_RIGHT)
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KBD_SET(KBD_RIGHT);
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if (joystick & RG_KEY_UP)
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KBD_SET(KBD_UP);
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if (joystick & RG_KEY_DOWN)
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KBD_SET(KBD_DOWN);
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if (joystick & RG_KEY_A)
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KBD_SET(KBD_SPACE);
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if (joystick & RG_KEY_B)
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KBD_SET(KBD_ENTER);
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}
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else
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{
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if (joystick & RG_KEY_LEFT)
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JoyState |= JST_LEFT;
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if (joystick & RG_KEY_RIGHT)
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JoyState |= JST_RIGHT;
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if (joystick & RG_KEY_UP)
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JoyState |= JST_UP;
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if (joystick & RG_KEY_DOWN)
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JoyState |= JST_DOWN;
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if (joystick & RG_KEY_A)
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JoyState |= JST_FIREA;
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if (joystick & RG_KEY_B)
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JoyState |= JST_FIREB;
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}
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return 0;
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}
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int InitMachine(void)
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{
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NormScreen = (Image){
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.Data = currentUpdate->data,
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.W = WIDTH,
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.H = HEIGHT,
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.L = WIDTH,
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.D = 16,
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};
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XBuf = NormScreen.Data;
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SetScreenDepth(NormScreen.D);
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SetVideo(&NormScreen, 0, 0, WIDTH, HEIGHT);
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for (int J = 0; J < 80; J++)
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SetColor(J, 0, 0, 0);
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for (int J = 0; J < 256; J++)
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{
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uint16_t color = C_RGB(((J >> 2) & 0x07) * 255 / 7, ((J >> 5) & 0x07) * 255 / 7, (J & 0x03) * 255 / 3);
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BPal[J] = ((color >> 8) | (color << 8)) & 0xFFFF;
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}
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InitSound(AUDIO_SAMPLE_RATE, 150);
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SetChannels(64, 0xFFFFFFFF);
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RPLInit(SaveState, LoadState, MAX_STASIZE);
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RPLRecord(RPL_RESET);
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return 1;
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}
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void TrashMachine(void)
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{
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RPLTrash();
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TrashSound();
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}
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void SetColor(byte N, byte R, byte G, byte B)
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{
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uint16_t color = C_RGB(R, G, B);
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color = (color >> 8) | (color << 8);
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if (N)
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XPal[N] = color;
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else
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XPal0 = color;
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}
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void PutImage(void)
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{
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if (InKeyboard)
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DrawKeyboard(&NormScreen, KBDKeys[KeyboardRow][KeyboardCol]);
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SubmitFrame();
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currentUpdate = updates[currentUpdate == updates[0]];
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NormScreen.Data = currentUpdate->data;
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XBuf = NormScreen.Data;
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}
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unsigned int Joystick(void)
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{
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ProcessEvents(0);
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return JoyState;
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}
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void Keyboard(void)
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{
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// Keyboard() is a convenient place to do our vsync stuff :)
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rg_system_tick(rg_system_timer() - FrameStartTime);
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FrameStartTime = rg_system_timer();
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if (PendingLoadSTA)
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{
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LoadSTA(PendingLoadSTA);
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free(PendingLoadSTA);
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PendingLoadSTA = NULL;
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}
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}
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unsigned int Mouse(byte N)
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{
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return 0;
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}
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int ShowVideo(void)
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{
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SubmitFrame();
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rg_system_tick(0);
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return 1;
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}
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unsigned int GetJoystick(void)
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{
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ProcessEvents(0);
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return 0;
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}
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unsigned int GetMouse(void)
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{
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return 0;
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}
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unsigned int GetKey(void)
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{
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unsigned int J;
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ProcessEvents(0);
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J = LastKey;
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LastKey = 0;
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return J;
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}
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unsigned int WaitKey(void)
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{
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GetKey();
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rg_input_wait_for_key(RG_KEY_ANY, false, 200);
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while (!rg_input_wait_for_key(RG_KEY_ANY, true, 100))
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continue;
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return GetKey();
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}
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unsigned int WaitKeyOrMouse(void)
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{
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LastKey = WaitKey();
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return 0;
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}
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unsigned int InitAudio(unsigned int Rate, unsigned int Latency)
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{
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return AUDIO_SAMPLE_RATE;
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}
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void TrashAudio(void)
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{
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//
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}
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unsigned int GetFreeAudio(void)
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{
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return AUDIO_BUFFER_LENGTH * 2;
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}
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void PlayAllSound(int uSec)
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{
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RenderAndPlayAudio(2 * uSec * AUDIO_SAMPLE_RATE / 1000000);
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}
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unsigned int WriteAudio(sample *Data, unsigned int Length)
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{
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int64_t start = rg_system_timer();
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rg_audio_submit((void *)Data, Length >> 1);
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FrameStartTime += rg_system_timer() - start;
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return Length;
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}
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static bool save_state_handler(const char *filename)
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{
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return SaveSTA(filename);
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}
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static bool load_state_handler(const char *filename)
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{
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PendingLoadSTA = strdup(filename);
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return true;
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}
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static bool reset_handler(bool hard)
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{
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ResetMSX(Mode,RAMPages,VRAMPages);
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return true;
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}
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static bool screenshot_handler(const char *filename, int width, int height)
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{
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return rg_surface_save_image_file(currentUpdate, filename, width, height);
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}
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static void event_handler(int event, void *arg)
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{
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if (event == RG_EVENT_REDRAW)
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{
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SubmitFrame();
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}
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}
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static rg_gui_event_t crop_select_cb(rg_gui_option_t *option, rg_gui_event_t event)
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{
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if (event == RG_DIALOG_PREV || event == RG_DIALOG_NEXT)
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{
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CropPicture = !CropPicture;
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rg_settings_set_number(NS_APP, "Crop", CropPicture);
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return RG_DIALOG_REDRAW;
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}
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strcpy(option->value, CropPicture ? "On" : "Off");
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return RG_DIALOG_VOID;
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}
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static rg_gui_event_t input_select_cb(rg_gui_option_t *option, rg_gui_event_t event)
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{
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if (event == RG_DIALOG_PREV || event == RG_DIALOG_NEXT)
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{
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KeyboardEmulation = !KeyboardEmulation;
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rg_settings_set_number(NS_APP, "Input", KeyboardEmulation);
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}
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strcpy(option->value, KeyboardEmulation ? "Keyboard" : "Joystick");
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return RG_DIALOG_VOID;
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}
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void app_main(void)
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{
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const rg_handlers_t handlers = {
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.loadState = &load_state_handler,
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.saveState = &save_state_handler,
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.reset = &reset_handler,
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.screenshot = &screenshot_handler,
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.event = &event_handler,
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};
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const rg_gui_option_t options[] = {
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{0, "Input", "-", RG_DIALOG_FLAG_NORMAL, &input_select_cb},
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{0, "Crop ", "-", RG_DIALOG_FLAG_NORMAL, &crop_select_cb},
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RG_DIALOG_END,
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};
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app = rg_system_init(AUDIO_SAMPLE_RATE, &handlers, options);
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// This is probably not right, but the emulator outputs 440 samples per frame??
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app->tickRate = 55;
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updates[0] = rg_surface_create(WIDTH, HEIGHT, RG_PIXEL_565_BE, MEM_FAST);
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updates[1] = rg_surface_create(WIDTH, HEIGHT, RG_PIXEL_565_BE, MEM_FAST);
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currentUpdate = updates[0];
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KeyboardEmulation = rg_settings_get_number(NS_APP, "Input", 1);
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CropPicture = rg_settings_get_number(NS_APP, "Crop", 0);
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for (size_t i = 0; i < RG_COUNT(BiosFiles); ++i)
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{
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char pathbuf[RG_PATH_MAX + 1];
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snprintf(pathbuf, RG_PATH_MAX, "%s/%s", BiosFolder, BiosFiles[i]);
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if (!rg_storage_exists(pathbuf))
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{
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char message[512];
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snprintf(message, 512, "File: %s\nYou can find it at:\n%s",
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rg_relpath(pathbuf), "https://fms.komkon.org/fMSX/");
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rg_gui_alert("BIOS file missing!", message);
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}
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}
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if (app->bootFlags & RG_BOOT_RESUME)
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{
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PendingLoadSTA = rg_emu_get_path(RG_PATH_SAVE_STATE + app->saveSlot, app->romPath);
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}
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char *argv[] = {"fmsx", "-skip", "50", "-home", BiosFolder, "-joy", "1", NULL, NULL, NULL,};
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int argc = RG_COUNT(argv) - 3;
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if (strcasecmp(rg_extension(app->romPath), "dsk") == 0)
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{
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argv[argc++] = "-diska";
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}
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argv[argc++] = app->romPath;
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RG_LOGI("fMSX start");
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fmsx_main(argc, argv);
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RG_LOGI("fMSX ended");
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rg_system_exit();
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}
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