// Module for Ucglib #include "module.h" #include "lauxlib.h" #include "platform.h" #include "c_stdlib.h" #include "ucg.h" #include "ucg_config.h" struct _lucg_userdata_t { ucg_t ucg; ucg_dev_fnptr dev_cb; ucg_dev_fnptr ext_cb; // For Print() function ucg_int_t tx, ty; uint8_t tdir; }; typedef struct _lucg_userdata_t lucg_userdata_t; #define delayMicroseconds os_delay_us static int16_t ucg_com_esp8266_hw_spi(ucg_t *ucg, int16_t msg, uint16_t arg, uint8_t *data); // shorthand macro for the ucg structure inside the userdata #define LUCG (&(lud->ucg)) // helper function: retrieve and check userdata argument static lucg_userdata_t *get_lud( lua_State *L ) { lucg_userdata_t *lud = (lucg_userdata_t *)luaL_checkudata(L, 1, "ucg.display"); luaL_argcheck(L, lud, 1, "ucg.display expected"); return lud; } // helper function: retrieve given number of integer arguments static void lucg_get_int_args( lua_State *L, uint8_t stack, uint8_t num, ucg_int_t *args) { while (num-- > 0) { *args++ = luaL_checkinteger( L, stack++ ); } } // Lua: ucg.begin( self, fontmode ) static int lucg_begin( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_Init( LUCG, lud->dev_cb, lud->ext_cb, ucg_com_esp8266_hw_spi ); ucg_int_t fontmode = luaL_checkinteger( L, 2 ); ucg_SetFontMode( LUCG, fontmode ); return 0; } // Lua: ucg.clearScreen( self ) static int lucg_clearScreen( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_ClearScreen( LUCG ); return 0; } // Lua: ucg.draw90Line( self, x, y, len, dir, col_idx ) static int lucg_draw90Line( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t args[5]; lucg_get_int_args( L, 2, 5, args ); ucg_Draw90Line( LUCG, args[0], args[1], args[2], args[3], args[4] ); return 0; } // Lua: ucg.drawBox( self, x, y, w, h ) static int lucg_drawBox( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t args[4]; lucg_get_int_args( L, 2, 4, args ); ucg_DrawBox( LUCG, args[0], args[1], args[2], args[3] ); return 0; } // Lua: ucg.drawCircle( self, x0, y0, rad, option ) static int lucg_drawCircle( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t args[4]; lucg_get_int_args( L, 2, 4, args ); ucg_DrawCircle( LUCG, args[0], args[1], args[2], args[3] ); return 0; } // Lua: ucg.drawDisc( self, x0, y0, rad, option ) static int lucg_drawDisc( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t args[4]; lucg_get_int_args( L, 2, 4, args ); ucg_DrawDisc( LUCG, args[0], args[1], args[2], args[3] ); return 0; } // Lua: ucg.drawFrame( self, x, y, w, h ) static int lucg_drawFrame( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t args[4]; lucg_get_int_args( L, 2, 4, args ); ucg_DrawFrame( LUCG, args[0], args[1], args[2], args[3] ); return 0; } // Lua: ucg.drawGradientBox( self, x, y, w, h ) static int lucg_drawGradientBox( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t args[4]; lucg_get_int_args( L, 2, 4, args ); ucg_DrawGradientBox( LUCG, args[0], args[1], args[2], args[3] ); return 0; } // Lua: width = ucg.drawGlyph( self, x, y, dir, encoding ) static int lucg_drawGlyph( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t args[3]; lucg_get_int_args( L, 2, 3, args ); const char *c = luaL_checkstring( L, (1+3) + 1 ); if (c == NULL) return 0; lua_pushinteger( L, ucg_DrawGlyph( LUCG, args[0], args[1], args[2], *c ) ); return 1; } // Lua: ucg.drawGradientLine( self, x, y, len, dir ) static int lucg_drawGradientLine( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t args[4]; lucg_get_int_args( L, 2, 4, args ); ucg_DrawGradientLine( LUCG, args[0], args[1], args[2], args[3] ); return 0; } // Lua: ucg.drawHLine( self, x, y, len ) static int lucg_drawHLine( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t args[3]; lucg_get_int_args( L, 2, 3, args ); ucg_DrawHLine( LUCG, args[0], args[1], args[2] ); return 0; } // Lua: ucg.drawLine( self, x1, y1, x2, y2 ) static int lucg_drawLine( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t args[4]; lucg_get_int_args( L, 2, 4, args ); ucg_DrawLine( LUCG, args[0], args[1], args[2], args[3] ); return 0; } // Lua: ucg.drawPixel( self, x, y ) static int lucg_drawPixel( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t args[2]; lucg_get_int_args( L, 2, 2, args ); ucg_DrawPixel( LUCG, args[0], args[1] ); return 0; } // Lua: ucg.drawRBox( self, x, y, w, h, r ) static int lucg_drawRBox( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t args[5]; lucg_get_int_args( L, 2, 5, args ); ucg_DrawRBox( LUCG, args[0], args[1], args[2], args[3], args[4] ); return 0; } // Lua: ucg.drawRFrame( self, x, y, w, h, r ) static int lucg_drawRFrame( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t args[5]; lucg_get_int_args( L, 2, 5, args ); ucg_DrawRFrame( LUCG, args[0], args[1], args[2], args[3], args[4] ); return 0; } // Lua: width = ucg.drawString( self, x, y, dir, str ) static int lucg_drawString( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t args[3]; lucg_get_int_args( L, 2, 3, args ); const char *s = luaL_checkstring( L, (1+3) + 1 ); if (s == NULL) return 0; lua_pushinteger( L, ucg_DrawString( LUCG, args[0], args[1], args[2], s ) ); return 1; } // Lua: ucg.drawTetragon( self, x0, y0, x1, y1, x2, y2, x3, y3 ) static int lucg_drawTetragon( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t args[8]; lucg_get_int_args( L, 2, 8, args ); ucg_DrawTetragon( LUCG, args[0], args[1], args[2], args[3], args[4], args[5], args[6], args[7] ); return 0; } // Lua: ucg.drawTriangle( self, x0, y0, x1, y1, x2, y2 ) static int lucg_drawTriangle( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t args[6]; lucg_get_int_args( L, 2, 6, args ); ucg_DrawTriangle( LUCG, args[0], args[1], args[2], args[3], args[4], args[5] ); return 0; } // Lua: ucg.drawVLine( self, x, y, len ) static int lucg_drawVLine( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t args[3]; lucg_get_int_args( L, 2, 3, args ); ucg_DrawVLine( LUCG, args[0], args[1], args[2] ); return 0; } // Lua: height = ucg.getFontAscent( self ) static int lucg_getFontAscent( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; lua_pushinteger( L, ucg_GetFontAscent( LUCG ) ); return 1; } // Lua: height = ucg.getFontDescent( self ) static int lucg_getFontDescent( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; lua_pushinteger( L, ucg_GetFontDescent( LUCG ) ); return 1; } // Lua: height = ucg.getHeight( self ) static int lucg_getHeight( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; lua_pushinteger( L, ucg_GetHeight( LUCG ) ); return 1; } // Lua: width = ucg.getStrWidth( self, string ) static int lucg_getStrWidth( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; const char *s = luaL_checkstring( L, 2 ); if (s == NULL) return 0; lua_pushinteger( L, ucg_GetStrWidth( LUCG, s ) ); return 1; } // Lua: width = ucg.getWidth( self ) static int lucg_getWidth( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; lua_pushinteger( L, ucg_GetWidth( LUCG ) ); return 1; } // Lua: ucg.setClipRange( self, x, y, w, h ) static int lucg_setClipRange( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t args[4]; lucg_get_int_args( L, 2, 4, args ); ucg_SetClipRange( LUCG, args[0], args[1], args[2], args[3] ); return 0; } // Lua: ucg.setColor( self, [idx], r, g, b ) static int lucg_setColor( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t args[3]; lucg_get_int_args( L, 2, 3, args ); ucg_int_t opt = luaL_optint( L, (1+3) + 1, -1 ); if (opt < 0) ucg_SetColor( LUCG, 0, args[0], args[1], args[2] ); else ucg_SetColor( LUCG, args[0], args[1], args[2], opt ); return 0; } // Lua: ucg.setFont( self, font ) static int lucg_setFont( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_fntpgm_uint8_t *font = (ucg_fntpgm_uint8_t *)lua_touserdata( L, 2 ); if (font != NULL) ucg_SetFont( LUCG, font ); else luaL_argerror(L, 2, "font data expected"); return 0; } // Lua: ucg.print( self, str ) static int lucg_print( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; const char *s = luaL_checkstring( L, 2 ); if (s == NULL) return 0; while (*s) { ucg_int_t delta; delta = ucg_DrawGlyph(LUCG, lud->tx, lud->ty, lud->tdir, *(s++)); switch(lud->tdir) { case 0: lud->tx += delta; break; case 1: lud->ty += delta; break; case 2: lud->tx -= delta; break; default: case 3: lud->ty -= delta; break; } } return 0; } // Lua: ucg.setFontMode( self, fontmode ) static int lucg_setFontMode( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t fontmode = luaL_checkinteger( L, 2 ); ucg_SetFontMode( LUCG, fontmode ); return 0; } // Lua: ucg.setFontPosBaseline( self ) static int lucg_setFontPosBaseline( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_SetFontPosBaseline( LUCG ); return 0; } // Lua: ucg.setFontPosBottom( self ) static int lucg_setFontPosBottom( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_SetFontPosBottom( LUCG ); return 0; } // Lua: ucg.setFontPosCenter( self ) static int lucg_setFontPosCenter( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_SetFontPosCenter( LUCG ); return 0; } // Lua: ucg.setFontPosTop( self ) static int lucg_setFontPosTop( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_SetFontPosTop( LUCG ); return 0; } // Lua: ucg.setMaxClipRange( self ) static int lucg_setMaxClipRange( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_SetMaxClipRange( LUCG ); return 0; } // Lua: ucg.setPrintPos( self, x, y ) static int lucg_setPrintPos( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_int_t args[2]; lucg_get_int_args( L, 2, 2, args ); lud->tx = args[0]; lud->ty = args[1]; return 0; } // Lua: ucg.setPrintDir( self, dir ) static int lucg_setPrintDir( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; lud->tdir = luaL_checkinteger( L, 2 ); return 0; } // Lua: ucg.setRotate90( self ) static int lucg_setRotate90( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_SetRotate90( LUCG ); return 0; } // Lua: ucg.setRotate180( self ) static int lucg_setRotate180( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_SetRotate180( LUCG ); return 0; } // Lua: ucg.setRotate270( self ) static int lucg_setRotate270( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_SetRotate270( LUCG ); return 0; } // Lua: ucg.setScale2x2( self ) static int lucg_setScale2x2( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_SetScale2x2( LUCG ); return 0; } // Lua: ucg.undoRotate( self ) static int lucg_undoRotate( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_UndoRotate( LUCG ); return 0; } // Lua: ucg.undoScale( self ) static int lucg_undoScale( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; ucg_UndoScale( LUCG ); return 0; } spi_data_type cache; uint8_t cached; #define CACHED_TRANSFER(dat, num) cache = cached = 0; \ while( arg > 0 ) { \ if (cached == 4) { \ platform_spi_transaction( 1, 0, 0, 32, cache, 0, 0, 0 ); \ cache = cached = 0; \ } \ cache = (cache << num*8) | dat; \ cached += num; \ arg--; \ } \ if (cached > 0) { \ platform_spi_transaction( 1, 0, 0, cached * 8, cache, 0, 0, 0 ); \ } static int16_t ucg_com_esp8266_hw_spi(ucg_t *ucg, int16_t msg, uint16_t arg, uint8_t *data) { switch(msg) { case UCG_COM_MSG_POWER_UP: /* "data" is a pointer to ucg_com_info_t structure with the following information: */ /* ((ucg_com_info_t *)data)->serial_clk_speed value in nanoseconds */ /* ((ucg_com_info_t *)data)->parallel_clk_speed value in nanoseconds */ /* setup pins */ // we assume that the SPI interface was already initialized // just care for the /CS and D/C pins //platform_gpio_write( ucg->pin_list[0], value ); if ( ucg->pin_list[UCG_PIN_RST] != UCG_PIN_VAL_NONE ) platform_gpio_mode( ucg->pin_list[UCG_PIN_RST], PLATFORM_GPIO_OUTPUT, PLATFORM_GPIO_FLOAT ); platform_gpio_mode( ucg->pin_list[UCG_PIN_CD], PLATFORM_GPIO_OUTPUT, PLATFORM_GPIO_FLOAT ); if ( ucg->pin_list[UCG_PIN_CS] != UCG_PIN_VAL_NONE ) platform_gpio_mode( ucg->pin_list[UCG_PIN_CS], PLATFORM_GPIO_OUTPUT, PLATFORM_GPIO_FLOAT ); break; case UCG_COM_MSG_POWER_DOWN: break; case UCG_COM_MSG_DELAY: delayMicroseconds(arg); break; case UCG_COM_MSG_CHANGE_RESET_LINE: if ( ucg->pin_list[UCG_PIN_RST] != UCG_PIN_VAL_NONE ) platform_gpio_write( ucg->pin_list[UCG_PIN_RST], arg ); break; case UCG_COM_MSG_CHANGE_CS_LINE: if ( ucg->pin_list[UCG_PIN_CS] != UCG_PIN_VAL_NONE ) platform_gpio_write( ucg->pin_list[UCG_PIN_CS], arg ); break; case UCG_COM_MSG_CHANGE_CD_LINE: platform_gpio_write( ucg->pin_list[UCG_PIN_CD], arg ); break; case UCG_COM_MSG_SEND_BYTE: platform_spi_send( 1, 8, arg ); break; case UCG_COM_MSG_REPEAT_1_BYTE: CACHED_TRANSFER(data[0], 1); break; case UCG_COM_MSG_REPEAT_2_BYTES: CACHED_TRANSFER((data[0] << 8) | data[1], 2); break; case UCG_COM_MSG_REPEAT_3_BYTES: while( arg > 0 ) { platform_spi_transaction( 1, 0, 0, 24, (data[0] << 16) | (data[1] << 8) | data[2], 0, 0, 0 ); arg--; } break; case UCG_COM_MSG_SEND_STR: CACHED_TRANSFER(*data++, 1); break; case UCG_COM_MSG_SEND_CD_DATA_SEQUENCE: while(arg > 0) { if ( *data != 0 ) { /* set the data line directly, ignore the setting from UCG_CFG_CD */ if ( *data == 1 ) { platform_gpio_write( ucg->pin_list[UCG_PIN_CD], 0 ); } else { platform_gpio_write( ucg->pin_list[UCG_PIN_CD], 1 ); } } data++; platform_spi_send( 1, 8, *data ); data++; arg--; } break; } return 1; } // device destructor static int lucg_close_display( lua_State *L ) { lucg_userdata_t *lud; if ((lud = get_lud( L )) == NULL) return 0; return 0; } // *************************************************************************** // Device constructors // // #undef UCG_DISPLAY_TABLE_ENTRY #define UCG_DISPLAY_TABLE_ENTRY(binding, device, extension) \ static int lucg_ ## binding( lua_State *L ) \ { \ unsigned cs = luaL_checkinteger( L, 1 ); \ if (cs == 0) \ return luaL_error( L, "CS pin required" ); \ unsigned dc = luaL_checkinteger( L, 2 ); \ if (dc == 0) \ return luaL_error( L, "D/C pin required" ); \ unsigned res = luaL_optinteger( L, 3, UCG_PIN_VAL_NONE ); \ \ lucg_userdata_t *lud = (lucg_userdata_t *) lua_newuserdata( L, sizeof( lucg_userdata_t ) ); \ \ /* do a dummy init so that something usefull is part of the ucg structure */ \ ucg_Init( LUCG, ucg_dev_default_cb, ucg_ext_none, (ucg_com_fnptr)0 ); \ \ /* reset cursor position */ \ lud->tx = 0; \ lud->ty = 0; \ lud->tdir = 0; /* default direction */ \ \ uint8_t i; \ for( i = 0; i < UCG_PIN_COUNT; i++ ) \ lud->ucg.pin_list[i] = UCG_PIN_VAL_NONE; \ \ lud->dev_cb = device; \ lud->ext_cb = extension; \ lud->ucg.pin_list[UCG_PIN_RST] = res; \ lud->ucg.pin_list[UCG_PIN_CD] = dc; \ lud->ucg.pin_list[UCG_PIN_CS] = cs; \ \ /* set its metatable */ \ luaL_getmetatable(L, "ucg.display"); \ lua_setmetatable(L, -2); \ \ return 1; \ } // // Unroll the display table and insert binding functions. UCG_DISPLAY_TABLE // // *************************************************************************** // Module function map static const LUA_REG_TYPE lucg_display_map[] = { { LSTRKEY( "begin" ), LFUNCVAL( lucg_begin ) }, { LSTRKEY( "clearScreen" ), LFUNCVAL( lucg_clearScreen ) }, { LSTRKEY( "draw90Line" ), LFUNCVAL( lucg_draw90Line ) }, { LSTRKEY( "drawBox" ), LFUNCVAL( lucg_drawBox ) }, { LSTRKEY( "drawCircle" ), LFUNCVAL( lucg_drawCircle ) }, { LSTRKEY( "drawDisc" ), LFUNCVAL( lucg_drawDisc ) }, { LSTRKEY( "drawFrame" ), LFUNCVAL( lucg_drawFrame ) }, { LSTRKEY( "drawGlyph" ), LFUNCVAL( lucg_drawGlyph ) }, { LSTRKEY( "drawGradientBox" ), LFUNCVAL( lucg_drawGradientBox ) }, { LSTRKEY( "drawGradientLine" ), LFUNCVAL( lucg_drawGradientLine ) }, { LSTRKEY( "drawHLine" ), LFUNCVAL( lucg_drawHLine ) }, { LSTRKEY( "drawLine" ), LFUNCVAL( lucg_drawLine ) }, { LSTRKEY( "drawPixel" ), LFUNCVAL( lucg_drawPixel ) }, { LSTRKEY( "drawRBox" ), LFUNCVAL( lucg_drawRBox ) }, { LSTRKEY( "drawRFrame" ), LFUNCVAL( lucg_drawRFrame ) }, { LSTRKEY( "drawString" ), LFUNCVAL( lucg_drawString ) }, { LSTRKEY( "drawTetragon" ), LFUNCVAL( lucg_drawTetragon ) }, { LSTRKEY( "drawTriangle" ), LFUNCVAL( lucg_drawTriangle ) }, { LSTRKEY( "drawVLine" ), LFUNCVAL( lucg_drawVLine ) }, { LSTRKEY( "getFontAscent" ), LFUNCVAL( lucg_getFontAscent ) }, { LSTRKEY( "getFontDescent" ), LFUNCVAL( lucg_getFontDescent ) }, { LSTRKEY( "getHeight" ), LFUNCVAL( lucg_getHeight ) }, { LSTRKEY( "getStrWidth" ), LFUNCVAL( lucg_getStrWidth ) }, { LSTRKEY( "getWidth" ), LFUNCVAL( lucg_getWidth ) }, { LSTRKEY( "print" ), LFUNCVAL( lucg_print ) }, { LSTRKEY( "setClipRange" ), LFUNCVAL( lucg_setClipRange ) }, { LSTRKEY( "setColor" ), LFUNCVAL( lucg_setColor ) }, { LSTRKEY( "setFont" ), LFUNCVAL( lucg_setFont ) }, { LSTRKEY( "setFontMode" ), LFUNCVAL( lucg_setFontMode ) }, { LSTRKEY( "setFontPosBaseline" ), LFUNCVAL( lucg_setFontPosBaseline ) }, { LSTRKEY( "setFontPosBottom" ), LFUNCVAL( lucg_setFontPosBottom ) }, { LSTRKEY( "setFontPosCenter" ), LFUNCVAL( lucg_setFontPosCenter ) }, { LSTRKEY( "setFontPosTop" ), LFUNCVAL( lucg_setFontPosTop ) }, { LSTRKEY( "setMaxClipRange" ), LFUNCVAL( lucg_setMaxClipRange ) }, { LSTRKEY( "setPrintDir" ), LFUNCVAL( lucg_setPrintDir ) }, { LSTRKEY( "setPrintPos" ), LFUNCVAL( lucg_setPrintPos ) }, { LSTRKEY( "setRotate90" ), LFUNCVAL( lucg_setRotate90 ) }, { LSTRKEY( "setRotate180" ), LFUNCVAL( lucg_setRotate180 ) }, { LSTRKEY( "setRotate270" ), LFUNCVAL( lucg_setRotate270 ) }, { LSTRKEY( "setScale2x2" ), LFUNCVAL( lucg_setScale2x2 ) }, { LSTRKEY( "undoClipRange" ), LFUNCVAL( lucg_setMaxClipRange ) }, { LSTRKEY( "undoRotate" ), LFUNCVAL( lucg_undoRotate ) }, { LSTRKEY( "undoScale" ), LFUNCVAL( lucg_undoScale ) }, { LSTRKEY( "__gc" ), LFUNCVAL( lucg_close_display ) }, { LSTRKEY( "__index" ), LROVAL ( lucg_display_map ) }, { LNILKEY, LNILVAL } }; static const LUA_REG_TYPE lucg_map[] = { #undef UCG_DISPLAY_TABLE_ENTRY #define UCG_DISPLAY_TABLE_ENTRY(binding, device, extension) { LSTRKEY( #binding ), LFUNCVAL ( lucg_ ##binding ) }, UCG_DISPLAY_TABLE // Register fonts #undef UCG_FONT_TABLE_ENTRY #define UCG_FONT_TABLE_ENTRY(font) { LSTRKEY( #font ), LUDATA( (void *)(ucg_ ## font) ) }, UCG_FONT_TABLE // Font modes { LSTRKEY( "FONT_MODE_TRANSPARENT" ), LNUMVAL( UCG_FONT_MODE_TRANSPARENT ) }, { LSTRKEY( "FONT_MODE_SOLID" ), LNUMVAL( UCG_FONT_MODE_SOLID ) }, // Options for circle/ disc drawing { LSTRKEY( "DRAW_UPPER_RIGHT" ), LNUMVAL( UCG_DRAW_UPPER_RIGHT ) }, { LSTRKEY( "DRAW_UPPER_LEFT" ), LNUMVAL( UCG_DRAW_UPPER_LEFT ) }, { LSTRKEY( "DRAW_LOWER_RIGHT" ), LNUMVAL( UCG_DRAW_LOWER_RIGHT ) }, { LSTRKEY( "DRAW_LOWER_LEFT" ), LNUMVAL( UCG_DRAW_LOWER_LEFT ) }, { LSTRKEY( "DRAW_ALL" ), LNUMVAL( UCG_DRAW_ALL ) }, { LSTRKEY( "__metatable" ), LROVAL( lucg_map ) }, { LNILKEY, LNILVAL } }; int luaopen_ucg( lua_State *L ) { luaL_rometatable(L, "ucg.display", (void *)lucg_display_map); // create metatable return 0; } NODEMCU_MODULE(UCG, "ucg", lucg_map, luaopen_ucg);