839 lines
19 KiB
C
839 lines
19 KiB
C
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// Module for binding the u8g2 library
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// Note: This file is intended to be shared between esp8266 and esp32 platform
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// Do not use the code from u8g2 submodule and skip the complete source here
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// if the u8g2 module is not selected.
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// Reason: The whole u8g2 submodule code tree might not even exist in this case.
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#include "user_modules.h"
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#if defined(LUA_USE_MODULES_U8G2) || defined(ESP_PLATFORM)
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#include "module.h"
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#include "lauxlib.h"
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#define U8X8_USE_PINS
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#define U8X8_WITH_USER_PTR
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#include "u8g2.h"
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#include "u8x8_nodemcu_hal.h"
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#include "u8g2_displays.h"
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#include "u8g2_fonts.h"
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#ifdef ESP_PLATFORM
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// ESP32
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#include "spi_common.h"
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#include "sdkconfig.h"
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#endif
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#ifndef CONFIG_LUA_MODULE_U8G2
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// ignore unused functions if u8g2 module will be skipped anyhow
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#pragma GCC diagnostic ignored "-Wunused-function"
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#endif
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typedef struct {
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int font_ref;
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int host_ref;
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u8g2_nodemcu_t u8g2;
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} u8g2_ud_t;
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#define GET_U8G2() \
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u8g2_ud_t *ud = (u8g2_ud_t *)luaL_checkudata( L, 1, "u8g2.display" ); \
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u8g2_t *u8g2 = (u8g2_t *)(&(ud->u8g2));
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static int lu8g2_clearBuffer( lua_State *L )
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{
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GET_U8G2();
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u8g2_ClearBuffer( u8g2 );
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return 0;
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}
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static int lu8g2_drawBox( lua_State *L )
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{
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GET_U8G2();
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int stack = 1;
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int x = luaL_checkint( L, ++stack );
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int y = luaL_checkint( L, ++stack );
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int w = luaL_checkint( L, ++stack );
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int h = luaL_checkint( L, ++stack );
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u8g2_DrawBox( u8g2, x, y, w, h );
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return 0;
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}
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static int lu8g2_drawCircle( lua_State *L )
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{
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GET_U8G2();
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int stack = 1;
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int x0 = luaL_checkint( L, ++stack );
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int y0 = luaL_checkint( L, ++stack );
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int rad = luaL_checkint( L, ++stack );
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int opt = luaL_optint( L, ++stack, U8G2_DRAW_ALL );
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u8g2_DrawCircle( u8g2, x0, y0, rad, opt );
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return 0;
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}
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static int lu8g2_drawDisc( lua_State *L )
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{
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GET_U8G2();
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int stack = 1;
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int x0 = luaL_checkint( L, ++stack );
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int y0 = luaL_checkint( L, ++stack );
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int rad = luaL_checkint( L, ++stack );
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int opt = luaL_optint( L, ++stack, U8G2_DRAW_ALL );
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u8g2_DrawDisc( u8g2, x0, y0, rad, opt );
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return 0;
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}
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static int lu8g2_drawEllipse( lua_State *L )
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{
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GET_U8G2();
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int stack = 1;
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int x0 = luaL_checkint( L, ++stack );
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int y0 = luaL_checkint( L, ++stack );
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int rx = luaL_checkint( L, ++stack );
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int ry = luaL_checkint( L, ++stack );
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int opt = luaL_optint( L, ++stack, U8G2_DRAW_ALL );
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u8g2_DrawEllipse( u8g2, x0, y0, rx, ry, opt );
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return 0;
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}
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static int lu8g2_drawFilledEllipse( lua_State *L )
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{
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GET_U8G2();
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int stack = 1;
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int x0 = luaL_checkint( L, ++stack );
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int y0 = luaL_checkint( L, ++stack );
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int rx = luaL_checkint( L, ++stack );
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int ry = luaL_checkint( L, ++stack );
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int opt = luaL_optint( L, ++stack, U8G2_DRAW_ALL );
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u8g2_DrawFilledEllipse( u8g2, x0, y0, rx, ry, opt );
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return 0;
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}
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static int lu8g2_drawFrame( lua_State *L )
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{
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GET_U8G2();
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int stack = 1;
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int x = luaL_checkint( L, ++stack );
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int y = luaL_checkint( L, ++stack );
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int w = luaL_checkint( L, ++stack );
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int h = luaL_checkint( L, ++stack );
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u8g2_DrawFrame( u8g2, x, y, w, h );
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return 0;
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}
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static int lu8g2_drawGlyph( lua_State *L )
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{
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GET_U8G2();
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int stack = 1;
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int x = luaL_checkint( L, ++stack );
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int y = luaL_checkint( L, ++stack );
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int enc = luaL_checkint( L, ++stack );
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u8g2_DrawGlyph( u8g2, x, y, enc );
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return 0;
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}
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static int lu8g2_drawHLine( lua_State *L )
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{
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GET_U8G2();
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int stack = 1;
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int x = luaL_checkint( L, ++stack );
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int y = luaL_checkint( L, ++stack );
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int w = luaL_checkint( L, ++stack );
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u8g2_DrawHLine( u8g2, x, y, w );
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return 0;
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}
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static int lu8g2_drawLine( lua_State *L )
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{
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GET_U8G2();
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int stack = 1;
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int x0 = luaL_checkint( L, ++stack );
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int y0 = luaL_checkint( L, ++stack );
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int x1 = luaL_checkint( L, ++stack );
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int y1 = luaL_checkint( L, ++stack );
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u8g2_DrawLine( u8g2, x0, y0, x1, y1 );
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return 0;
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}
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static int lu8g2_drawPixel( lua_State *L )
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{
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GET_U8G2();
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int stack = 1;
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int x = luaL_checkint( L, ++stack );
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int y = luaL_checkint( L, ++stack );
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u8g2_DrawPixel( u8g2, x, y );
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return 0;
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}
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static int lu8g2_drawRBox( lua_State *L )
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{
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GET_U8G2();
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int stack = 1;
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int x = luaL_checkint( L, ++stack );
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int y = luaL_checkint( L, ++stack );
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int w = luaL_checkint( L, ++stack );
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int h = luaL_checkint( L, ++stack );
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int r = luaL_checkint( L, ++stack );
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u8g2_DrawRBox( u8g2, x, y, w, h, r );
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return 0;
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}
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static int lu8g2_drawRFrame( lua_State *L )
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{
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GET_U8G2();
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int stack = 1;
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int x = luaL_checkint( L, ++stack );
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int y = luaL_checkint( L, ++stack );
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int w = luaL_checkint( L, ++stack );
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int h = luaL_checkint( L, ++stack );
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int r = luaL_checkint( L, ++stack );
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u8g2_DrawRFrame( u8g2, x, y, w, h, r );
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return 0;
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}
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static int lu8g2_drawStr( lua_State *L )
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{
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GET_U8G2();
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int stack = 1;
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int x = luaL_checkint( L, ++stack );
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int y = luaL_checkint( L, ++stack );
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const char *str = luaL_checkstring( L, ++stack );
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u8g2_DrawStr( u8g2, x, y, str );
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return 0;
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}
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static int lu8g2_drawTriangle( lua_State *L )
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{
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GET_U8G2();
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int stack = 1;
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int x0 = luaL_checkint( L, ++stack );
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int y0 = luaL_checkint( L, ++stack );
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int x1 = luaL_checkint( L, ++stack );
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int y1 = luaL_checkint( L, ++stack );
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int x2 = luaL_checkint( L, ++stack );
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int y2 = luaL_checkint( L, ++stack );
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u8g2_DrawTriangle( u8g2, x0, y0, x1, y1, x2, y2 );
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return 0;
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}
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static int lu8g2_drawUTF8( lua_State *L )
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{
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GET_U8G2();
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int stack = 1;
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int x = luaL_checkint( L, ++stack );
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int y = luaL_checkint( L, ++stack );
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const char *str = luaL_checkstring( L, ++stack );
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u8g2_DrawUTF8( u8g2, x, y, str );
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return 0;
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}
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static int lu8g2_drawVLine( lua_State *L )
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{
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GET_U8G2();
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int stack = 1;
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int x = luaL_checkint( L, ++stack );
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int y = luaL_checkint( L, ++stack );
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int h = luaL_checkint( L, ++stack );
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u8g2_DrawVLine( u8g2, x, y, h );
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return 0;
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}
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static int lu8g2_drawXBM( lua_State *L )
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{
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GET_U8G2();
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int stack = 1;
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int x = luaL_checkint( L, ++stack );
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int y = luaL_checkint( L, ++stack );
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int w = luaL_checkint( L, ++stack );
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int h = luaL_checkint( L, ++stack );
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size_t len;
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const char *bitmap = luaL_checklstring( L, ++stack, &len );
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u8g2_DrawXBM( u8g2, x, y, w, h, (uint8_t *)bitmap );
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return 0;
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}
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static int lu8g2_getAscent( lua_State *L )
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{
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GET_U8G2();
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lua_pushinteger( L, u8g2_GetAscent( u8g2 ) );
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return 1;
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}
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static int lu8g2_getDescent( lua_State *L )
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{
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GET_U8G2();
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lua_pushinteger( L, u8g2_GetDescent( u8g2 ) );
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return 1;
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}
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static int lu8g2_getStrWidth( lua_State *L )
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{
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GET_U8G2();
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int stack = 1;
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const char *s = luaL_checkstring( L, ++stack );
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lua_pushinteger( L, u8g2_GetStrWidth( u8g2, s ) );
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return 1;
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}
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static int lu8g2_getUTF8Width( lua_State *L )
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{
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GET_U8G2();
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int stack = 1;
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const char *s = luaL_checkstring( L, ++stack );
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lua_pushinteger( L, u8g2_GetUTF8Width( u8g2, s ) );
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return 1;
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}
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static int lu8g2_sendBuffer( lua_State *L )
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{
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GET_U8G2();
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u8g2_SendBuffer( u8g2 );
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return 0;
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}
|
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|
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static int lu8g2_setBitmapMode( lua_State *L )
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{
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GET_U8G2();
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int stack = 1;
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int is_transparent = luaL_checkint( L, ++stack );
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u8g2_SetBitmapMode( u8g2, is_transparent );
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return 0;
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}
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static int lu8g2_setContrast( lua_State *L )
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{
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||
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GET_U8G2();
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int stack = 1;
|
||
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|
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int value = luaL_checkint( L, ++stack );
|
||
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u8g2_SetContrast( u8g2, value );
|
||
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return 0;
|
||
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}
|
||
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|
||
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static int lu8g2_setDisplayRotation( lua_State *L )
|
||
|
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{
|
||
|
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GET_U8G2();
|
||
|
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int stack = 1;
|
||
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|
||
|
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const u8g2_cb_t *u8g2_cb = (u8g2_cb_t *)lua_touserdata( L, ++stack );
|
||
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|
||
|
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u8g2_SetDisplayRotation( u8g2, u8g2_cb );
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int lu8g2_setDrawColor( lua_State *L )
|
||
|
|
{
|
||
|
|
GET_U8G2();
|
||
|
|
int stack = 1;
|
||
|
|
|
||
|
|
int col = luaL_checkint( L, ++stack );
|
||
|
|
|
||
|
|
u8g2_SetDrawColor( u8g2, col );
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int lu8g2_setFlipMode( lua_State *L )
|
||
|
|
{
|
||
|
|
GET_U8G2();
|
||
|
|
int stack = 1;
|
||
|
|
|
||
|
|
int is_enable = luaL_checkint( L, ++stack );
|
||
|
|
|
||
|
|
u8g2_SetFlipMode( u8g2, is_enable );
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int lu8g2_setFont( lua_State *L )
|
||
|
|
{
|
||
|
|
GET_U8G2();
|
||
|
|
int stack = 1;
|
||
|
|
|
||
|
|
const uint8_t *font = NULL;
|
||
|
|
|
||
|
|
luaL_unref( L, LUA_REGISTRYINDEX, ud->font_ref );
|
||
|
|
ud->font_ref = LUA_NOREF;
|
||
|
|
|
||
|
|
if (lua_islightuserdata( L, ++stack )) {
|
||
|
|
font = (const uint8_t *)lua_touserdata( L, stack );
|
||
|
|
|
||
|
|
} else if (lua_isstring( L, stack )) {
|
||
|
|
// ref the font string to safe it in case the string variable gets gc'ed
|
||
|
|
lua_pushvalue( L, stack );
|
||
|
|
ud->font_ref = luaL_ref( L, LUA_REGISTRYINDEX );
|
||
|
|
|
||
|
|
size_t len;
|
||
|
|
font = (const uint8_t *)luaL_checklstring( L, stack, &len );
|
||
|
|
|
||
|
|
}
|
||
|
|
luaL_argcheck( L, font != NULL, stack, "invalid font" );
|
||
|
|
|
||
|
|
u8g2_SetFont( u8g2, font );
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int lu8g2_setFontDirection( lua_State *L )
|
||
|
|
{
|
||
|
|
GET_U8G2();
|
||
|
|
int stack = 1;
|
||
|
|
|
||
|
|
int dir = luaL_checkint( L, ++stack );
|
||
|
|
|
||
|
|
u8g2_SetFontDirection( u8g2, dir );
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int lu8g2_setFontMode( lua_State *L )
|
||
|
|
{
|
||
|
|
GET_U8G2();
|
||
|
|
int stack = 1;
|
||
|
|
|
||
|
|
int is_transparent = luaL_checkint( L, ++stack );
|
||
|
|
|
||
|
|
u8g2_SetFontMode( u8g2, is_transparent );
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int lu8g2_setFontPosBaseline( lua_State *L )
|
||
|
|
{
|
||
|
|
GET_U8G2();
|
||
|
|
|
||
|
|
u8g2_SetFontPosBaseline( u8g2 );
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int lu8g2_setFontPosBottom( lua_State *L )
|
||
|
|
{
|
||
|
|
GET_U8G2();
|
||
|
|
|
||
|
|
u8g2_SetFontPosBottom( u8g2 );
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int lu8g2_setFontPosTop( lua_State *L )
|
||
|
|
{
|
||
|
|
GET_U8G2();
|
||
|
|
|
||
|
|
u8g2_SetFontPosTop( u8g2 );
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int lu8g2_setFontPosCenter( lua_State *L )
|
||
|
|
{
|
||
|
|
GET_U8G2();
|
||
|
|
|
||
|
|
u8g2_SetFontPosCenter( u8g2 );
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int lu8g2_setFontRefHeightAll( lua_State *L )
|
||
|
|
{
|
||
|
|
GET_U8G2();
|
||
|
|
|
||
|
|
u8g2_SetFontRefHeightAll( u8g2 );
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int lu8g2_setFontRefHeightExtendedText( lua_State *L )
|
||
|
|
{
|
||
|
|
GET_U8G2();
|
||
|
|
|
||
|
|
u8g2_SetFontRefHeightExtendedText( u8g2 );
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int lu8g2_setFontRefHeightText( lua_State *L )
|
||
|
|
{
|
||
|
|
GET_U8G2();
|
||
|
|
|
||
|
|
u8g2_SetFontRefHeightText( u8g2 );
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int lu8g2_setPowerSave( lua_State *L )
|
||
|
|
{
|
||
|
|
GET_U8G2();
|
||
|
|
int stack = 1;
|
||
|
|
|
||
|
|
int is_enable = luaL_checkint( L, ++stack );
|
||
|
|
|
||
|
|
u8g2_SetPowerSave( u8g2, is_enable );
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int lu8g2_updateDisplay( lua_State *L )
|
||
|
|
{
|
||
|
|
GET_U8G2();
|
||
|
|
|
||
|
|
u8g2_UpdateDisplay( u8g2 );
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int lu8g2_updateDisplayArea( lua_State *L )
|
||
|
|
{
|
||
|
|
GET_U8G2();
|
||
|
|
int stack = 1;
|
||
|
|
|
||
|
|
int x = luaL_checkint( L, ++stack );
|
||
|
|
int y = luaL_checkint( L, ++stack );
|
||
|
|
int w = luaL_checkint( L, ++stack );
|
||
|
|
int h = luaL_checkint( L, ++stack );
|
||
|
|
|
||
|
|
u8g2_UpdateDisplayArea( u8g2, x, y, w, h );
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
LROT_BEGIN(lu8g2_display, NULL, LROT_MASK_INDEX)
|
||
|
|
LROT_TABENTRY( __index, lu8g2_display )
|
||
|
|
LROT_FUNCENTRY( clearBuffer, lu8g2_clearBuffer )
|
||
|
|
LROT_FUNCENTRY( drawBox, lu8g2_drawBox )
|
||
|
|
LROT_FUNCENTRY( drawCircle, lu8g2_drawCircle )
|
||
|
|
LROT_FUNCENTRY( drawDisc, lu8g2_drawDisc )
|
||
|
|
LROT_FUNCENTRY( drawEllipse, lu8g2_drawEllipse )
|
||
|
|
LROT_FUNCENTRY( drawFilledEllipse, lu8g2_drawFilledEllipse )
|
||
|
|
LROT_FUNCENTRY( drawFrame, lu8g2_drawFrame )
|
||
|
|
LROT_FUNCENTRY( drawGlyph, lu8g2_drawGlyph )
|
||
|
|
LROT_FUNCENTRY( drawHLine, lu8g2_drawHLine )
|
||
|
|
LROT_FUNCENTRY( drawLine, lu8g2_drawLine )
|
||
|
|
LROT_FUNCENTRY( drawPixel, lu8g2_drawPixel )
|
||
|
|
LROT_FUNCENTRY( drawRBox, lu8g2_drawRBox )
|
||
|
|
LROT_FUNCENTRY( drawRFrame, lu8g2_drawRFrame )
|
||
|
|
LROT_FUNCENTRY( drawStr, lu8g2_drawStr )
|
||
|
|
LROT_FUNCENTRY( drawTriangle, lu8g2_drawTriangle )
|
||
|
|
LROT_FUNCENTRY( drawUTF8, lu8g2_drawUTF8 )
|
||
|
|
LROT_FUNCENTRY( drawVLine, lu8g2_drawVLine )
|
||
|
|
LROT_FUNCENTRY( drawXBM, lu8g2_drawXBM )
|
||
|
|
LROT_FUNCENTRY( getAscent, lu8g2_getAscent )
|
||
|
|
LROT_FUNCENTRY( getDescent, lu8g2_getDescent )
|
||
|
|
LROT_FUNCENTRY( getStrWidth, lu8g2_getStrWidth )
|
||
|
|
LROT_FUNCENTRY( getUTF8Width, lu8g2_getUTF8Width )
|
||
|
|
LROT_FUNCENTRY( sendBuffer, lu8g2_sendBuffer )
|
||
|
|
LROT_FUNCENTRY( setBitmapMode, lu8g2_setBitmapMode )
|
||
|
|
LROT_FUNCENTRY( setContrast, lu8g2_setContrast )
|
||
|
|
LROT_FUNCENTRY( setDisplayRotation, lu8g2_setDisplayRotation )
|
||
|
|
LROT_FUNCENTRY( setDrawColor, lu8g2_setDrawColor )
|
||
|
|
LROT_FUNCENTRY( setFlipMode, lu8g2_setFlipMode )
|
||
|
|
LROT_FUNCENTRY( setFont, lu8g2_setFont )
|
||
|
|
LROT_FUNCENTRY( setFontDirection, lu8g2_setFontDirection )
|
||
|
|
LROT_FUNCENTRY( setFontMode, lu8g2_setFontMode )
|
||
|
|
LROT_FUNCENTRY( setFontPosBaseline, lu8g2_setFontPosBaseline )
|
||
|
|
LROT_FUNCENTRY( setFontPosBottom, lu8g2_setFontPosBottom )
|
||
|
|
LROT_FUNCENTRY( setFontPosTop, lu8g2_setFontPosTop )
|
||
|
|
LROT_FUNCENTRY( setFontPosCenter, lu8g2_setFontPosCenter )
|
||
|
|
LROT_FUNCENTRY( setFontRefHeightAll, lu8g2_setFontRefHeightAll )
|
||
|
|
LROT_FUNCENTRY( setFontRefHeightExtendedText, lu8g2_setFontRefHeightExtendedText )
|
||
|
|
LROT_FUNCENTRY( setFontRefHeightText, lu8g2_setFontRefHeightText )
|
||
|
|
LROT_FUNCENTRY( setPowerSave, lu8g2_setPowerSave )
|
||
|
|
LROT_FUNCENTRY( updateDisplay, lu8g2_updateDisplay )
|
||
|
|
LROT_FUNCENTRY( updateDisplayArea, lu8g2_updateDisplayArea )
|
||
|
|
LROT_END(lu8g2_display, NULL, LROT_MASK_INDEX)
|
||
|
|
|
||
|
|
|
||
|
|
uint8_t u8x8_d_overlay(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
|
||
|
|
|
||
|
|
typedef void (*display_setup_fn_t)(u8g2_t *u8g2, const u8g2_cb_t *rotation, u8x8_msg_cb byte_cb, u8x8_msg_cb gpio_and_delay_cb);
|
||
|
|
|
||
|
|
// ***************************************************************************
|
||
|
|
// Device constructors
|
||
|
|
//
|
||
|
|
// I2C based devices will use this function template to implement the Lua binding.
|
||
|
|
//
|
||
|
|
static int ldisplay_i2c( lua_State *L, display_setup_fn_t setup_fn )
|
||
|
|
{
|
||
|
|
int stack = 0;
|
||
|
|
|
||
|
|
int id = -1;
|
||
|
|
int i2c_addr = -1;
|
||
|
|
int rfb_cb_ref = LUA_NOREF;
|
||
|
|
|
||
|
|
if (lua_type( L, ++stack) == LUA_TNUMBER) {
|
||
|
|
/* hardware display connected */
|
||
|
|
id = luaL_checkint( L, stack );
|
||
|
|
i2c_addr = luaL_checkint( L, ++stack );
|
||
|
|
luaL_argcheck( L, i2c_addr >= 0 && i2c_addr <= 0x7f, stack, "invalid i2c address" );
|
||
|
|
} else
|
||
|
|
stack--;
|
||
|
|
if (lua_isfunction( L, ++stack )) {
|
||
|
|
lua_pushvalue( L, stack );
|
||
|
|
rfb_cb_ref = luaL_ref( L, LUA_REGISTRYINDEX );
|
||
|
|
}
|
||
|
|
if (id < 0 && rfb_cb_ref == LUA_NOREF)
|
||
|
|
return luaL_error( L, "wrong args" );
|
||
|
|
|
||
|
|
u8g2_ud_t *ud = (u8g2_ud_t *)lua_newuserdata( L, sizeof( u8g2_ud_t ) );
|
||
|
|
u8g2_nodemcu_t *ext_u8g2 = &(ud->u8g2);
|
||
|
|
ud->font_ref = LUA_NOREF;
|
||
|
|
ud->host_ref = LUA_NOREF;
|
||
|
|
|
||
|
|
u8g2_t *u8g2 = (u8g2_t *)ext_u8g2;
|
||
|
|
u8x8_t *u8x8 = (u8x8_t *)u8g2;
|
||
|
|
/* the i2c driver id is forwarded in the user pointer */
|
||
|
|
u8x8->user_ptr = id >= 0 ? (void *)id : NULL;
|
||
|
|
|
||
|
|
setup_fn( u8g2, U8G2_R0, u8x8_byte_nodemcu_i2c, u8x8_gpio_and_delay_nodemcu );
|
||
|
|
|
||
|
|
/* prepare overlay data */
|
||
|
|
if (rfb_cb_ref != LUA_NOREF) {
|
||
|
|
ext_u8g2->overlay.template_display_cb = u8x8->display_cb;
|
||
|
|
ext_u8g2->overlay.hardware_display_cb = NULL;
|
||
|
|
ext_u8g2->overlay.rfb_cb_ref = LUA_NOREF;
|
||
|
|
u8x8->display_cb = u8x8_d_overlay;
|
||
|
|
}
|
||
|
|
if (id >= 0) {
|
||
|
|
/* hardware device specific initialization */
|
||
|
|
u8x8_SetI2CAddress( u8x8, i2c_addr );
|
||
|
|
ext_u8g2->overlay.hardware_display_cb = ext_u8g2->overlay.template_display_cb;
|
||
|
|
}
|
||
|
|
|
||
|
|
u8g2_InitDisplay( (u8g2_t *)u8g2 );
|
||
|
|
u8g2_ClearDisplay( (u8g2_t *)u8g2 );
|
||
|
|
u8g2_SetPowerSave( (u8g2_t *)u8g2, 0 );
|
||
|
|
|
||
|
|
if (rfb_cb_ref != LUA_NOREF) {
|
||
|
|
/* finally enable rfb display driver */
|
||
|
|
ext_u8g2->overlay.rfb_cb_ref = rfb_cb_ref;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* set its metatable */
|
||
|
|
luaL_getmetatable(L, "u8g2.display");
|
||
|
|
lua_setmetatable(L, -2);
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
//
|
||
|
|
// SPI based devices will use this function template to implement the Lua binding.
|
||
|
|
//
|
||
|
|
static int ldisplay_spi( lua_State *L, display_setup_fn_t setup_fn )
|
||
|
|
{
|
||
|
|
int stack = 0;
|
||
|
|
|
||
|
|
#ifndef ESP_PLATFORM
|
||
|
|
// ESP8266
|
||
|
|
typedef struct {
|
||
|
|
int host;
|
||
|
|
} lspi_host_t;
|
||
|
|
lspi_host_t host_elem;
|
||
|
|
lspi_host_t *host = &host_elem;
|
||
|
|
#else
|
||
|
|
// ESP32
|
||
|
|
lspi_host_t *host = NULL;
|
||
|
|
#endif
|
||
|
|
int host_ref = LUA_NOREF;
|
||
|
|
int cs = -1;
|
||
|
|
int dc = -1;
|
||
|
|
int res = -1;
|
||
|
|
int rfb_cb_ref = LUA_NOREF;
|
||
|
|
int get_spi_pins;
|
||
|
|
|
||
|
|
|
||
|
|
if (lua_type( L, ++stack ) == LUA_TUSERDATA) {
|
||
|
|
host = (lspi_host_t *)luaL_checkudata( L, stack, "spi.master" );
|
||
|
|
/* reference host object to avoid automatic gc */
|
||
|
|
lua_pushvalue( L, stack );
|
||
|
|
host_ref = luaL_ref( L, LUA_REGISTRYINDEX );
|
||
|
|
get_spi_pins = 1;
|
||
|
|
} else if (lua_type( L, stack ) == LUA_TNUMBER) {
|
||
|
|
host->host = luaL_checkint( L, stack );
|
||
|
|
get_spi_pins = 1;
|
||
|
|
} else {
|
||
|
|
get_spi_pins = 0;
|
||
|
|
stack--;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (get_spi_pins) {
|
||
|
|
cs = luaL_checkint( L, ++stack );
|
||
|
|
dc = luaL_checkint( L, ++stack );
|
||
|
|
res = luaL_optint( L, ++stack, -1 );
|
||
|
|
}
|
||
|
|
|
||
|
|
if (lua_isfunction( L, ++stack )) {
|
||
|
|
lua_pushvalue( L, stack );
|
||
|
|
rfb_cb_ref = luaL_ref( L, LUA_REGISTRYINDEX );
|
||
|
|
}
|
||
|
|
if (!host && rfb_cb_ref == LUA_NOREF)
|
||
|
|
return luaL_error( L, "wrong args" );
|
||
|
|
|
||
|
|
u8g2_ud_t *ud = (u8g2_ud_t *)lua_newuserdata( L, sizeof( u8g2_ud_t ) );
|
||
|
|
u8g2_nodemcu_t *ext_u8g2 = &(ud->u8g2);
|
||
|
|
ud->font_ref = LUA_NOREF;
|
||
|
|
ud->host_ref = host_ref;
|
||
|
|
|
||
|
|
u8g2_t *u8g2 = (u8g2_t *)ext_u8g2;
|
||
|
|
u8x8_t *u8x8 = (u8x8_t *)u8g2;
|
||
|
|
/* the spi host id is forwarded in the user pointer */
|
||
|
|
u8x8->user_ptr = host ? (void *)(host->host) : NULL;
|
||
|
|
|
||
|
|
setup_fn( u8g2, U8G2_R0, u8x8_byte_nodemcu_spi, u8x8_gpio_and_delay_nodemcu );
|
||
|
|
|
||
|
|
/* prepare overlay data */
|
||
|
|
if (rfb_cb_ref != LUA_NOREF) {
|
||
|
|
ext_u8g2->overlay.template_display_cb = u8x8->display_cb;
|
||
|
|
ext_u8g2->overlay.hardware_display_cb = NULL;
|
||
|
|
ext_u8g2->overlay.rfb_cb_ref = LUA_NOREF;
|
||
|
|
u8x8->display_cb = u8x8_d_overlay;
|
||
|
|
}
|
||
|
|
if (host) {
|
||
|
|
/* hardware specific device initialization */
|
||
|
|
u8x8_SetPin( u8x8, U8X8_PIN_CS, cs );
|
||
|
|
u8x8_SetPin( u8x8, U8X8_PIN_DC, dc );
|
||
|
|
if (res >= 0)
|
||
|
|
u8x8_SetPin( u8x8, U8X8_PIN_RESET, res );
|
||
|
|
ext_u8g2->overlay.hardware_display_cb = ext_u8g2->overlay.template_display_cb;
|
||
|
|
}
|
||
|
|
|
||
|
|
u8g2_InitDisplay( (u8g2_t *)u8g2 );
|
||
|
|
u8g2_ClearDisplay( (u8g2_t *)u8g2 );
|
||
|
|
u8g2_SetPowerSave( (u8g2_t *)u8g2, 0 );
|
||
|
|
|
||
|
|
if (rfb_cb_ref != LUA_NOREF) {
|
||
|
|
/* finally enable rfb display driver */
|
||
|
|
ext_u8g2->overlay.rfb_cb_ref = rfb_cb_ref;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* set its metatable */
|
||
|
|
luaL_getmetatable(L, "u8g2.display");
|
||
|
|
lua_setmetatable(L, -2);
|
||
|
|
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
//
|
||
|
|
//
|
||
|
|
#undef U8G2_DISPLAY_TABLE_ENTRY
|
||
|
|
#define U8G2_DISPLAY_TABLE_ENTRY(function, binding) \
|
||
|
|
static int l ## binding( lua_State *L ) \
|
||
|
|
{ \
|
||
|
|
return ldisplay_i2c( L, function ); \
|
||
|
|
}
|
||
|
|
//
|
||
|
|
// Unroll the display table and insert binding functions for I2C based displays.
|
||
|
|
U8G2_DISPLAY_TABLE_I2C
|
||
|
|
//
|
||
|
|
//
|
||
|
|
#undef U8G2_DISPLAY_TABLE_ENTRY
|
||
|
|
#define U8G2_DISPLAY_TABLE_ENTRY(function, binding) \
|
||
|
|
static int l ## binding( lua_State *L ) \
|
||
|
|
{ \
|
||
|
|
return ldisplay_spi( L, function ); \
|
||
|
|
}
|
||
|
|
//
|
||
|
|
// Unroll the display table and insert binding functions for SPI based displays.
|
||
|
|
U8G2_DISPLAY_TABLE_SPI
|
||
|
|
//
|
||
|
|
|
||
|
|
|
||
|
|
#undef U8G2_FONT_TABLE_ENTRY
|
||
|
|
#undef U8G2_DISPLAY_TABLE_ENTRY
|
||
|
|
#define U8G2_DISPLAY_TABLE_ENTRY(function, binding) LROT_FUNCENTRY(binding,l ## binding)
|
||
|
|
LROT_BEGIN(lu8g2, NULL, 0)
|
||
|
|
U8G2_DISPLAY_TABLE_I2C
|
||
|
|
U8G2_DISPLAY_TABLE_SPI
|
||
|
|
//
|
||
|
|
// Register fonts
|
||
|
|
#define U8G2_FONT_TABLE_ENTRY(font) LROT_LUDENTRY(font, u8g2_ ## font)
|
||
|
|
U8G2_FONT_TABLE
|
||
|
|
//
|
||
|
|
LROT_NUMENTRY( DRAW_UPPER_RIGHT, U8G2_DRAW_UPPER_RIGHT )
|
||
|
|
LROT_NUMENTRY( DRAW_UPPER_LEFT, U8G2_DRAW_UPPER_LEFT )
|
||
|
|
LROT_NUMENTRY( DRAW_LOWER_RIGHT, U8G2_DRAW_LOWER_RIGHT )
|
||
|
|
LROT_NUMENTRY( DRAW_LOWER_LEFT, U8G2_DRAW_LOWER_LEFT )
|
||
|
|
LROT_NUMENTRY( DRAW_ALL, U8G2_DRAW_ALL )
|
||
|
|
LROT_LUDENTRY( R0, U8G2_R0 )
|
||
|
|
LROT_LUDENTRY( R1, U8G2_R1 )
|
||
|
|
LROT_LUDENTRY( R2, U8G2_R2 )
|
||
|
|
LROT_LUDENTRY( R3, U8G2_R3 )
|
||
|
|
LROT_LUDENTRY( MIRROR, U8G2_MIRROR )
|
||
|
|
LROT_END(lu8g2, NULL, 0)
|
||
|
|
|
||
|
|
|
||
|
|
int luaopen_u8g2( lua_State *L ) {
|
||
|
|
luaL_rometatable(L, "u8g2.display", LROT_TABLEREF(lu8g2_display));
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
NODEMCU_MODULE(U8G2, "u8g2", lu8g2, luaopen_u8g2);
|
||
|
|
|
||
|
|
#endif /* defined(LUA_USE_MODULES_U8G2) || defined(ESP_PLATFORM) */
|