#ifndef EMUAPI_H
#define EMUAPI_H

#include "platform_config.h"

//#define TIMER_REND  1
#define EXTRA_HEAP  0x10
//#define CUSTOM_SND  1


// Title:     <                        >
#define TITLE "    SPECTRUM Emulator"
#define ROMSDIR "spec"

#define emu_Init(ROM) {spec_Init(); spec_Start(ROM);}
#define emu_Step(x) {spec_Step();}
#define emu_Input(x) {spec_Input(x);}

#define PALETTE_SIZE         16
#define VID_FRAME_SKIP       0x0
#define TFT_VBUFFER_YCROP    0
#define SINGLELINE_RENDERING 1

#define ACTION_NONE          0
#define ACTION_MAXKBDVAL     225
#define ACTION_EXITKBD       128
#define ACTION_RUNTFT        129
#define ACTION_RUNVGA        130


#ifdef KEYMAP_PRESENT
/*
    {25, 6,27,29,224},// vcxz<caps shift=Lshift>
    {10, 9, 7,22, 4}, // gfdsa
    {23,21, 8,26,20}, // trewq
    {34,33,32,31,30}, // 54321
    {35,36,37,38,39}, // 67890
    {28,24,12,18,19}, // yuiop
    {11,13,14,15,40}, // hjkl<enter>
    { 5,17,16,225,44},// bnm <symbshift=RSHift> <space>
*/

#define keylables_map1_0 (char *)"qwertyuiop\x1a"
#define keylables_map1_1 (char *)" asdfghjkl\x19"
#define keylables_map1_2 (char *)" zxcvbnm.\x10 "
const unsigned short key_map1[] = {
  20,26,8,21,23,28,24,12,18,19,39+128,
  0, 4, 22, 7,9, 10,11,13,14,15,40,
  0,29,27,6,25,5,17,16,16+64,44, 
  0,0,0,0   //up,left,right,down
  };  

#define keylables_map2_0 (char *)"1234567890="
#define keylables_map2_1 (char *)" !@#$%+&*- "
#define keylables_map2_2 (char *)" ()?/\"<>,: "
const unsigned short key_map2[] = {
  30,31,32,33,34,35,36,37,38,39,15+64,
  0,30+64,31+64,32+64,33+64,34+64,14+64,35+64,5+64,13+64,0,
  0, 37+64,38+64,6+64,25+64,19+64,21+64,23+64,17+64,29+64,
  36+128,34+128,37+128,35+128   //up,left,right,down
  };  

#define keylables_map3_0 (char *)"QWERTYUIOP "
#define keylables_map3_1 (char *)" ASDFGHJKL "
#define keylables_map3_2 (char *)" ZXCVBNM;  "
const unsigned short key_map3[] = {
  20+128,26+128,8+128,21+128,23+128,28+128,24+128,12+128,18+128,19+128,0, // Upper case
  0, 4+128, 22+128, 7+128,9+128, 10+128,11+128,13+128,14+128,15+128,0,
  0,29+128,27+128,6+128,25+128,5+128,17+128,16+128,18+64,44+128,
  36+128,34+128,37+128,35+128   //up,left,right,down
  };

const unsigned short matkeys[] = {
  0x020,0x120,0x220,0x320,0x420,0x408,0x308,0x208,0x108,0x008,0x002, // row 1
  0x510,0x010,0x110,0x210,0x310,0x410,0x401,0x301,0x201,0x101,0x001, // row 2
  0x520,0x102,0x202,0x302,0x402,0x404,0x304,0x204,0x104,0x004, // row 3
  0x508,0x501,0x502,0x504 }; // cursor keys

#endif


#define MASK_JOY2_RIGHT 0x0001
#define MASK_JOY2_LEFT  0x0002
#define MASK_JOY2_UP    0x0004
#define MASK_JOY2_DOWN  0x0008
#define MASK_JOY2_BTN   0x0010
#define MASK_KEY_USER1  0x0020
#define MASK_KEY_USER2  0x0040
#define MASK_KEY_USER3  0x0080
#define MASK_JOY1_RIGHT 0x0100
#define MASK_JOY1_LEFT  0x0200
#define MASK_JOY1_UP    0x0400
#define MASK_JOY1_DOWN  0x0800
#define MASK_JOY1_BTN   0x1000
#define MASK_KEY_USER4  0x2000
#define MASK_OSKB       0x8000


extern void emu_init(void);
extern void emu_start(void);
extern void emu_resetSD(void);

extern void emu_printf(const char * text);
extern void emu_printi(int val);
extern void * emu_Malloc(int size);
extern void emu_Free(void * pt);

extern int emu_FileOpen(const char * filepath, const char * mode);
extern int emu_FileRead(void * buf, int size, int handler);
extern int emu_FileGetc(int handler);
extern int emu_FileSeek(int handler, int seek, int origin);
extern int emu_FileTell(int handler);
extern void emu_FileClose(int handler);

extern unsigned int emu_FileSize(const char * filepath);
extern unsigned int emu_LoadFile(const char * filepath, void * buf, int size);

extern void emu_SetPaletteEntry(unsigned char r, unsigned char g, unsigned char b, int index);
extern void emu_DrawScreen(unsigned char * VBuf, int width, int height, int stride);
extern void emu_DrawLine(unsigned char * VBuf, int width, int height, int line);
extern void emu_DrawLine8(unsigned char * VBuf, int width, int height, int line);
extern void emu_DrawLine16(unsigned short * VBuf, int width, int height, int line);
extern void emu_DrawVsync(void);
extern int emu_FrameSkip(void);
extern void * emu_LineBuffer(int line);
#define RGBVAL32(r,g,b)  ( (r<<16) | (g<<8) | b )
#define RGBVAL16(r,g,b)  ( (((r>>3)&0x1f)<<11) | (((g>>2)&0x3f)<<5) | (((b>>3)&0x1f)<<0) )
#define RGBVAL8(r,g,b)   ( (((r>>5)&0x07)<<5) | (((g>>5)&0x07)<<2) | (((b>>6)&0x3)<<0) )
#define R16(rgb) ((rgb>>8)&0xf8) 
#define G16(rgb) ((rgb>>3)&0xfc) 
#define B16(rgb) ((rgb<<3)&0xf8) 
extern void emu_drawText(unsigned short x, unsigned short y, const char * text, unsigned short fgcolor, unsigned short bgcolor, int doublesize);

extern void emu_InitJoysticks(void);
extern int emu_SwapJoysticks(int statusOnly);
extern unsigned short emu_DebounceLocalKeys(void);
extern int emu_ReadKeys(void);
extern int emu_GetPad(void);
extern int emu_ReadAnalogJoyX(int min, int max);
extern int emu_ReadAnalogJoyY(int min, int max);
extern int emu_ReadI2CKeyboard(void);
extern void emu_KeyboardOnUp(int keymodifer, int key);
extern void emu_KeyboardOnDown(int keymodifer, int key);

extern void emu_sndPlaySound(int chan, int volume, int freq);
extern void emu_sndPlayBuzz(int size, int val);
extern void emu_sndInit();
extern void emu_resetus(void);
extern int emu_us(void);

extern int emu_setKeymap(int index);

extern void emu_FileTempInit(void); 
extern void emu_FileTempRead(int addr, unsigned char * val, int n); 
extern void emu_FileTempWrite(int addr, unsigned char val); 
extern void emu_printh(int val);

#endif