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port u8g2 module from esp32 platform

This commit is contained in:
devsaurus 2017-11-18 21:29:57 +01:00
parent 7d04636689
commit 87bb96dfbe
19 changed files with 1649 additions and 468 deletions
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12
Makefile
View File

@ -308,11 +308,11 @@ endif
$(OBJODIR)/%.o: %.c $(OBJODIR)/%.o: %.c
@mkdir -p $(OBJODIR); @mkdir -p $(dir $@);
$(CC) $(if $(findstring $<,$(DSRCS)),$(DFLAGS),$(CFLAGS)) $(COPTS_$(*F)) -o $@ -c $< $(CC) $(if $(findstring $<,$(DSRCS)),$(DFLAGS),$(CFLAGS)) $(COPTS_$(*F)) -o $@ -c $<
$(OBJODIR)/%.d: %.c $(OBJODIR)/%.d: %.c
@mkdir -p $(OBJODIR); @mkdir -p $(dir $@);
@echo DEPEND: $(CC) -M $(CFLAGS) $< @echo DEPEND: $(CC) -M $(CFLAGS) $<
@set -e; rm -f $@; \ @set -e; rm -f $@; \
$(CC) -M $(CFLAGS) $< > $@.$$$$; \ $(CC) -M $(CFLAGS) $< > $@.$$$$; \
@ -331,22 +331,22 @@ $(OBJODIR)/%.d: %.cpp
rm -f $@.$$$$ rm -f $@.$$$$
$(OBJODIR)/%.o: %.s $(OBJODIR)/%.o: %.s
@mkdir -p $(OBJODIR); @mkdir -p $(dir $@);
$(CC) $(CFLAGS) -o $@ -c $< $(CC) $(CFLAGS) -o $@ -c $<
$(OBJODIR)/%.d: %.s $(OBJODIR)/%.d: %.s
@mkdir -p $(OBJODIR); \ @mkdir -p $(dir $@); \
set -e; rm -f $@; \ set -e; rm -f $@; \
$(CC) -M $(CFLAGS) $< > $@.$$$$; \ $(CC) -M $(CFLAGS) $< > $@.$$$$; \
sed 's,\($*\.o\)[ :]*,$(OBJODIR)/\1 $@ : ,g' < $@.$$$$ > $@; \ sed 's,\($*\.o\)[ :]*,$(OBJODIR)/\1 $@ : ,g' < $@.$$$$ > $@; \
rm -f $@.$$$$ rm -f $@.$$$$
$(OBJODIR)/%.o: %.S $(OBJODIR)/%.o: %.S
@mkdir -p $(OBJODIR); @mkdir -p $(dir $@);
$(CC) $(CFLAGS) -D__ASSEMBLER__ -o $@ -c $< $(CC) $(CFLAGS) -D__ASSEMBLER__ -o $@ -c $<
$(OBJODIR)/%.d: %.S $(OBJODIR)/%.d: %.S
@mkdir -p $(OBJODIR); \ @mkdir -p $(dir $@); \
set -e; rm -f $@; \ set -e; rm -f $@; \
$(CC) -M $(CFLAGS) $< > $@.$$$$; \ $(CC) -M $(CFLAGS) $< > $@.$$$$; \
sed 's,\($*\.o\)[ :]*,$(OBJODIR)/\1 $@ : ,g' < $@.$$$$ > $@; \ sed 's,\($*\.o\)[ :]*,$(OBJODIR)/\1 $@ : ,g' < $@.$$$$ > $@; \

2
app/Makefile
View File

@ -38,6 +38,7 @@ SUBDIRS= \
lua \ lua \
lwip \ lwip \
task \ task \
u8g2lib \
smart \ smart \
modules \ modules \
spiffs \ spiffs \
@ -68,6 +69,7 @@ COMPONENTS_eagle.app.v6 = \
libc/liblibc.a \ libc/liblibc.a \
lua/liblua.a \ lua/liblua.a \
lwip/liblwip.a \ lwip/liblwip.a \
u8g2lib/u8g2lib.a \
smart/smart.a \ smart/smart.a \
spiffs/spiffs.a \ spiffs/spiffs.a \
fatfs/libfatfs.a \ fatfs/libfatfs.a \

14
app/include/u8g2_displays.h Normal file
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@ -0,0 +1,14 @@
#ifndef _U8G2_DISPLAYS_H
#define _U8G2_DISPLAYS_H
#define U8G2_DISPLAY_TABLE_ENTRY(function, binding)
#define U8G2_DISPLAY_TABLE_I2C \
U8G2_DISPLAY_TABLE_ENTRY(u8g2_Setup_ssd1306_i2c_128x64_noname_f, ssd1306_i2c_128x64_noname) \
#define U8G2_DISPLAY_TABLE_SPI \
U8G2_DISPLAY_TABLE_ENTRY(u8g2_Setup_ssd1306_128x64_noname_f, ssd1306_128x64_noname) \
#endif /* _U8G2_DISPLAYS_H */

12
app/include/u8g2_fonts.h Normal file
View File

@ -0,0 +1,12 @@
#ifndef _U8G2_FONTS_H
#define _U8G2_FONTS_H
#define U8G2_FONT_TABLE_ENTRY(font)
#define U8G2_FONT_TABLE \
U8G2_FONT_TABLE_ENTRY(font_6x10_tf) \
U8G2_FONT_TABLE_ENTRY(font_unifont_t_symbols) \
#endif /* _U8G2_FONTS_H */

1
app/include/user_modules.h
View File

@ -65,6 +65,7 @@
#define LUA_USE_MODULES_TMR #define LUA_USE_MODULES_TMR
//#define LUA_USE_MODULES_TSL2561 //#define LUA_USE_MODULES_TSL2561
#define LUA_USE_MODULES_UART #define LUA_USE_MODULES_UART
//#define LUA_USE_MODULES_U8G2
//#define LUA_USE_MODULES_UCG //#define LUA_USE_MODULES_UCG
//#define LUA_USE_MODULES_WEBSOCKET //#define LUA_USE_MODULES_WEBSOCKET
#define LUA_USE_MODULES_WIFI #define LUA_USE_MODULES_WIFI

1
app/modules/Makefile
View File

@ -43,6 +43,7 @@ INCLUDES += -I ./
INCLUDES += -I ../libc INCLUDES += -I ../libc
INCLUDES += -I ../coap INCLUDES += -I ../coap
INCLUDES += -I ../mqtt INCLUDES += -I ../mqtt
INCLUDES += -I ../u8g2lib/u8g2/src/clib
INCLUDES += -I ../ucglib INCLUDES += -I ../ucglib
INCLUDES += -I ../lua INCLUDES += -I ../lua
INCLUDES += -I ../pcm INCLUDES += -I ../pcm

805
app/modules/u8g2.c Normal file
View File

@ -0,0 +1,805 @@
// Module for binding the u8g2 library
// Note: This file is intended to be shared between esp8266 and esp32 platform
#include "module.h"
#include "lauxlib.h"
#define U8X8_USE_PINS
#include "u8g2.h"
#include "u8x8_nodemcu_hal.h"
#include "u8g2_displays.h"
#include "u8g2_fonts.h"
#ifdef ESP_PLATFORM
#include "spi_common.h"
#include "sdkconfig.h"
#endif
#ifndef CONFIG_LUA_MODULE_U8G2
// ignore unused functions if u8g2 module will be skipped anyhow
#pragma GCC diagnostic ignored "-Wunused-function"
#endif
typedef struct {
int font_ref;
int host_ref;
u8g2_nodemcu_t u8g2;
} u8g2_ud_t;
#define GET_U8G2() \
u8g2_ud_t *ud = (u8g2_ud_t *)luaL_checkudata( L, 1, "u8g2.display" ); \
u8g2_t *u8g2 = (u8g2_t *)(&(ud->u8g2));
static int lu8g2_clearBuffer( lua_State *L )
{
GET_U8G2();
u8g2_ClearBuffer( u8g2 );
return 0;
}
static int lu8g2_drawBox( 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_DrawBox( u8g2, x, y, w, h );
return 0;
}
static int lu8g2_drawCircle( lua_State *L )
{
GET_U8G2();
int stack = 1;
int x0 = luaL_checkint( L, ++stack );
int y0 = luaL_checkint( L, ++stack );
int rad = luaL_checkint( L, ++stack );
int opt = luaL_optint( L, ++stack, U8G2_DRAW_ALL );
u8g2_DrawCircle( u8g2, x0, y0, rad, opt );
return 0;
}
static int lu8g2_drawDisc( lua_State *L )
{
GET_U8G2();
int stack = 1;
int x0 = luaL_checkint( L, ++stack );
int y0 = luaL_checkint( L, ++stack );
int rad = luaL_checkint( L, ++stack );
int opt = luaL_optint( L, ++stack, U8G2_DRAW_ALL );
u8g2_DrawDisc( u8g2, x0, y0, rad, opt );
return 0;
}
static int lu8g2_drawEllipse( lua_State *L )
{
GET_U8G2();
int stack = 1;
int x0 = luaL_checkint( L, ++stack );
int y0 = luaL_checkint( L, ++stack );
int rx = luaL_checkint( L, ++stack );
int ry = luaL_checkint( L, ++stack );
int opt = luaL_optint( L, ++stack, U8G2_DRAW_ALL );
u8g2_DrawEllipse( u8g2, x0, y0, rx, ry, opt );
return 0;
}
static int lu8g2_drawFilledEllipse( lua_State *L )
{
GET_U8G2();
int stack = 1;
int x0 = luaL_checkint( L, ++stack );
int y0 = luaL_checkint( L, ++stack );
int rx = luaL_checkint( L, ++stack );
int ry = luaL_checkint( L, ++stack );
int opt = luaL_optint( L, ++stack, U8G2_DRAW_ALL );
u8g2_DrawFilledEllipse( u8g2, x0, y0, rx, ry, opt );
return 0;
}
static int lu8g2_drawFrame( 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_DrawFrame( u8g2, x, y, w, h );
return 0;
}
static int lu8g2_drawGlyph( lua_State *L )
{
GET_U8G2();
int stack = 1;
int x = luaL_checkint( L, ++stack );
int y = luaL_checkint( L, ++stack );
int enc = luaL_checkint( L, ++stack );
u8g2_DrawGlyph( u8g2, x, y, enc );
return 0;
}
static int lu8g2_drawHLine( 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 );
u8g2_DrawHLine( u8g2, x, y, w );
return 0;
}
static int lu8g2_drawLine( lua_State *L )
{
GET_U8G2();
int stack = 1;
int x0 = luaL_checkint( L, ++stack );
int y0 = luaL_checkint( L, ++stack );
int x1 = luaL_checkint( L, ++stack );
int y1 = luaL_checkint( L, ++stack );
u8g2_DrawLine( u8g2, x0, y0, x1, y1 );
return 0;
}
static int lu8g2_drawPixel( lua_State *L )
{
GET_U8G2();
int stack = 1;
int x = luaL_checkint( L, ++stack );
int y = luaL_checkint( L, ++stack );
u8g2_DrawPixel( u8g2, x, y );
return 0;
}
static int lu8g2_drawRBox( 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 );
int r = luaL_checkint( L, ++stack );
u8g2_DrawRBox( u8g2, x, y, w, h, r );
return 0;
}
static int lu8g2_drawRFrame( 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 );
int r = luaL_checkint( L, ++stack );
u8g2_DrawRFrame( u8g2, x, y, w, h, r );
return 0;
}
static int lu8g2_drawStr( lua_State *L )
{
GET_U8G2();
int stack = 1;
int x = luaL_checkint( L, ++stack );
int y = luaL_checkint( L, ++stack );
const char *str = luaL_checkstring( L, ++stack );
u8g2_DrawStr( u8g2, x, y, str );
return 0;
}
static int lu8g2_drawTriangle( lua_State *L )
{
GET_U8G2();
int stack = 1;
int x0 = luaL_checkint( L, ++stack );
int y0 = luaL_checkint( L, ++stack );
int x1 = luaL_checkint( L, ++stack );
int y1 = luaL_checkint( L, ++stack );
int x2 = luaL_checkint( L, ++stack );
int y2 = luaL_checkint( L, ++stack );
u8g2_DrawTriangle( u8g2, x0, y0, x1, y1, x2, y2 );
return 0;
}
static int lu8g2_drawUTF8( lua_State *L )
{
GET_U8G2();
int stack = 1;
int x = luaL_checkint( L, ++stack );
int y = luaL_checkint( L, ++stack );
const char *str = luaL_checkstring( L, ++stack );
u8g2_DrawUTF8( u8g2, x, y, str );
return 0;
}
static int lu8g2_drawVLine( lua_State *L )
{
GET_U8G2();
int stack = 1;
int x = luaL_checkint( L, ++stack );
int y = luaL_checkint( L, ++stack );
int h = luaL_checkint( L, ++stack );
u8g2_DrawVLine( u8g2, x, y, h );
return 0;
}
static int lu8g2_drawXBM( 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 );
size_t len;
const char *bitmap = luaL_checklstring( L, ++stack, &len );
u8g2_DrawXBM( u8g2, x, y, w, h, (uint8_t *)bitmap );
return 0;
}
static int lu8g2_getAscent( lua_State *L )
{
GET_U8G2();
lua_pushinteger( L, u8g2_GetAscent( u8g2 ) );
return 1;
}
static int lu8g2_getDescent( lua_State *L )
{
GET_U8G2();
lua_pushinteger( L, u8g2_GetDescent( u8g2 ) );
return 1;
}
static int lu8g2_getStrWidth( lua_State *L )
{
GET_U8G2();
int stack = 1;
const char *s = luaL_checkstring( L, ++stack );
lua_pushinteger( L, u8g2_GetStrWidth( u8g2, s ) );
return 1;
}
static int lu8g2_getUTF8Width( lua_State *L )
{
GET_U8G2();
int stack = 1;
const char *s = luaL_checkstring( L, ++stack );
lua_pushinteger( L, u8g2_GetUTF8Width( u8g2, s ) );
return 1;
}
static int lu8g2_sendBuffer( lua_State *L )
{
GET_U8G2();
u8g2_SendBuffer( u8g2 );
return 0;
}
static int lu8g2_setBitmapMode( lua_State *L )
{
GET_U8G2();
int stack = 1;
int is_transparent = luaL_checkint( L, ++stack );
u8g2_SetBitmapMode( u8g2, is_transparent );
return 0;
}
static int lu8g2_setContrast( lua_State *L )
{
GET_U8G2();
int stack = 1;
int value = luaL_checkint( L, ++stack );
u8g2_SetContrast( u8g2, value );
return 0;
}
static int lu8g2_setDisplayRotation( lua_State *L )
{
GET_U8G2();
int stack = 1;
const u8g2_cb_t *u8g2_cb = (u8g2_cb_t *)lua_touserdata( L, ++stack );
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 const LUA_REG_TYPE lu8g2_display_map[] = {
{ LSTRKEY( "clearBuffer" ), LFUNCVAL( lu8g2_clearBuffer ) },
{ LSTRKEY( "drawBox" ), LFUNCVAL( lu8g2_drawBox ) },
{ LSTRKEY( "drawCircle" ), LFUNCVAL( lu8g2_drawCircle ) },
{ LSTRKEY( "drawDisc" ), LFUNCVAL( lu8g2_drawDisc ) },
{ LSTRKEY( "drawEllipse" ), LFUNCVAL( lu8g2_drawEllipse ) },
{ LSTRKEY( "drawFilledEllipse" ), LFUNCVAL( lu8g2_drawFilledEllipse ) },
{ LSTRKEY( "drawFrame" ), LFUNCVAL( lu8g2_drawFrame ) },
{ LSTRKEY( "drawGlyph" ), LFUNCVAL( lu8g2_drawGlyph ) },
{ LSTRKEY( "drawHLine" ), LFUNCVAL( lu8g2_drawHLine ) },
{ LSTRKEY( "drawLine" ), LFUNCVAL( lu8g2_drawLine ) },
{ LSTRKEY( "drawPixel" ), LFUNCVAL( lu8g2_drawPixel ) },
{ LSTRKEY( "drawRBox" ), LFUNCVAL( lu8g2_drawRBox ) },
{ LSTRKEY( "drawRFrame" ), LFUNCVAL( lu8g2_drawRFrame ) },
{ LSTRKEY( "drawStr" ), LFUNCVAL( lu8g2_drawStr ) },
{ LSTRKEY( "drawTriangle" ), LFUNCVAL( lu8g2_drawTriangle ) },
{ LSTRKEY( "drawUTF8" ), LFUNCVAL( lu8g2_drawUTF8 ) },
{ LSTRKEY( "drawVLine" ), LFUNCVAL( lu8g2_drawVLine ) },
{ LSTRKEY( "drawXBM" ), LFUNCVAL( lu8g2_drawXBM ) },
{ LSTRKEY( "getAscent" ), LFUNCVAL( lu8g2_getAscent ) },
{ LSTRKEY( "getDescent" ), LFUNCVAL( lu8g2_getDescent ) },
{ LSTRKEY( "getStrWidth" ), LFUNCVAL( lu8g2_getStrWidth ) },
{ LSTRKEY( "getUTF8Width" ), LFUNCVAL( lu8g2_getUTF8Width ) },
{ LSTRKEY( "sendBuffer" ), LFUNCVAL( lu8g2_sendBuffer ) },
{ LSTRKEY( "setBitmapMode" ), LFUNCVAL( lu8g2_setBitmapMode ) },
{ LSTRKEY( "setContrast" ), LFUNCVAL( lu8g2_setContrast ) },
{ LSTRKEY( "setDisplayRotation" ), LFUNCVAL( lu8g2_setDisplayRotation ) },
{ LSTRKEY( "setDrawColor" ), LFUNCVAL( lu8g2_setDrawColor ) },
{ LSTRKEY( "setFlipMode" ), LFUNCVAL( lu8g2_setFlipMode ) },
{ LSTRKEY( "setFont" ), LFUNCVAL( lu8g2_setFont ) },
{ LSTRKEY( "setFontDirection" ), LFUNCVAL( lu8g2_setFontDirection ) },
{ LSTRKEY( "setFontMode" ), LFUNCVAL( lu8g2_setFontMode ) },
{ LSTRKEY( "setFontPosBaseline" ), LFUNCVAL( lu8g2_setFontPosBaseline ) },
{ LSTRKEY( "setFontPosBottom" ), LFUNCVAL( lu8g2_setFontPosBottom ) },
{ LSTRKEY( "setFontPosTop" ), LFUNCVAL( lu8g2_setFontPosTop ) },
{ LSTRKEY( "setFontPosCenter" ), LFUNCVAL( lu8g2_setFontPosCenter ) },
{ LSTRKEY( "setFontRefHeightAll" ), LFUNCVAL( lu8g2_setFontRefHeightAll ) },
{ LSTRKEY( "setFontRefHeightExtendedText" ), LFUNCVAL( lu8g2_setFontRefHeightExtendedText ) },
{ LSTRKEY( "setFontRefHeightText" ), LFUNCVAL( lu8g2_setFontRefHeightText ) },
{ LSTRKEY( "setPowerSave" ), LFUNCVAL( lu8g2_setPowerSave ) },
//{ LSTRKEY( "__gc" ), LFUNCVAL( lu8g2_display_free ) },
{ LSTRKEY( "__index" ), LROVAL( lu8g2_display_map ) },
{LNILKEY, LNILVAL}
};
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;
/* the i2c driver id is forwarded in the hal member */
ext_u8g2->hal = id >= 0 ? (void *)id : NULL;
u8g2_t *u8g2 = (u8g2_t *)ext_u8g2;
u8x8_t *u8x8 = (u8x8_t *)u8g2;
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
typedef struct {
int host;
} lspi_host_t;
lspi_host_t host_elem;
lspi_host_t *host = &host_elem;
#else
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 = TRUE;
} else if (lua_type( L, stack ) == LUA_TNUMBER) {
host->host = luaL_checkint( L, stack );
get_spi_pins = TRUE;
} else {
get_spi_pins = FALSE;
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;
/* the spi host id is forwarded in the hal member */
ext_u8g2->hal = host ? (void *)(host->host) : NULL;
u8g2_t *u8g2 = (u8g2_t *)ext_u8g2;
u8x8_t *u8x8 = (u8x8_t *)u8g2;
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) \
{ LSTRKEY( #binding ), LFUNCVAL( l ## binding ) },
static const LUA_REG_TYPE lu8g2_map[] = {
U8G2_DISPLAY_TABLE_I2C
U8G2_DISPLAY_TABLE_SPI
//
// Register fonts
#define U8G2_FONT_TABLE_ENTRY(font) \
{ LSTRKEY( #font ), LUDATA( (void *)(u8g2_ ## font) ) },
U8G2_FONT_TABLE
//
{ LSTRKEY( "DRAW_UPPER_RIGHT" ), LNUMVAL( U8G2_DRAW_UPPER_RIGHT ) },
{ LSTRKEY( "DRAW_UPPER_LEFT" ), LNUMVAL( U8G2_DRAW_UPPER_LEFT ) },
{ LSTRKEY( "DRAW_LOWER_RIGHT" ), LNUMVAL( U8G2_DRAW_LOWER_RIGHT ) },
{ LSTRKEY( "DRAW_LOWER_LEFT" ), LNUMVAL( U8G2_DRAW_LOWER_LEFT ) },
{ LSTRKEY( "DRAW_ALL" ), LNUMVAL( U8G2_DRAW_ALL ) },
{ LSTRKEY( "R0" ), LUDATA( (void *)U8G2_R0 ) },
{ LSTRKEY( "R1" ), LUDATA( (void *)U8G2_R1 ) },
{ LSTRKEY( "R2" ), LUDATA( (void *)U8G2_R2 ) },
{ LSTRKEY( "R3" ), LUDATA( (void *)U8G2_R3 ) },
{ LSTRKEY( "MIRROR" ), LUDATA( (void *)U8G2_MIRROR ) },
{LNILKEY, LNILVAL}
};
int luaopen_u8g2( lua_State *L ) {
luaL_rometatable(L, "u8g2.display", (void *)lu8g2_display_map);
return 0;
}
NODEMCU_MODULE(U8G2, "u8g2", lu8g2_map, luaopen_u8g2);

1
app/platform/Makefile
View File

@ -43,6 +43,7 @@ INCLUDES += -I ./
INCLUDES += -I ../spiffs INCLUDES += -I ../spiffs
INCLUDES += -I ../libc INCLUDES += -I ../libc
INCLUDES += -I ../lua INCLUDES += -I ../lua
INCLUDES += -I ../u8g2lib/u8g2/src/clib
PDIR := ../$(PDIR) PDIR := ../$(PDIR)
sinclude $(PDIR)Makefile sinclude $(PDIR)Makefile

283
app/platform/u8x8_nodemcu_hal.c Normal file
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@ -0,0 +1,283 @@
#include <string.h>
#include "c_stdlib.h"
#include "platform.h"
#define U8X8_USE_PINS
#include "u8x8_nodemcu_hal.h"
uint8_t u8x8_gpio_and_delay_nodemcu(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
{
uint32_t temp;
switch(msg)
{
case U8X8_MSG_GPIO_AND_DELAY_INIT: // called once during init phase of u8g2/u8x8
// can be used to setup pins
for (int idx = 0; idx < U8X8_PIN_OUTPUT_CNT; idx++) {
if (u8x8->pins[idx] != U8X8_PIN_NONE) {
// configure pin as output
if (idx == U8X8_PIN_I2C_CLOCK || idx == U8X8_PIN_I2C_DATA) {
platform_gpio_mode( u8x8->pins[idx], PLATFORM_GPIO_OPENDRAIN, PLATFORM_GPIO_PULLUP );
} else {
platform_gpio_mode( u8x8->pins[idx], PLATFORM_GPIO_OUTPUT, PLATFORM_GPIO_FLOAT );
}
}
}
break;
case U8X8_MSG_DELAY_NANO: // delay arg_int * 1 nano second
os_delay_us( 1 );
break;
case U8X8_MSG_DELAY_100NANO: // delay arg_int * 100 nano seconds
temp = arg_int * 100;
temp /= 1000;
os_delay_us( temp > 0 ? temp : 1 );
break;
case U8X8_MSG_DELAY_10MICRO: // delay arg_int * 10 micro seconds
os_delay_us( arg_int * 10 );
break;
case U8X8_MSG_DELAY_MILLI: // delay arg_int * 1 milli second
os_delay_us( arg_int * 1000 );
break;
case U8X8_MSG_DELAY_I2C: // arg_int is the I2C speed in 100KHz, e.g. 4 = 400 KHz
temp = 5000 / arg_int; // arg_int=1: delay by 5us, arg_int = 4: delay by 1.25us
temp /= 1000;
os_delay_us( temp > 0 ? temp : 1 );
break;
case U8X8_MSG_GPIO_D0: // D0 or SPI clock pin: Output level in arg_int
//case U8X8_MSG_GPIO_SPI_CLOCK:
break;
case U8X8_MSG_GPIO_D1: // D1 or SPI data pin: Output level in arg_int
//case U8X8_MSG_GPIO_SPI_DATA:
break;
case U8X8_MSG_GPIO_D2: // D2 pin: Output level in arg_int
break;
case U8X8_MSG_GPIO_D3: // D3 pin: Output level in arg_int
break;
case U8X8_MSG_GPIO_D4: // D4 pin: Output level in arg_int
break;
case U8X8_MSG_GPIO_D5: // D5 pin: Output level in arg_int
break;
case U8X8_MSG_GPIO_D6: // D6 pin: Output level in arg_int
break;
case U8X8_MSG_GPIO_D7: // D7 pin: Output level in arg_int
break;
case U8X8_MSG_GPIO_E: // E/WR pin: Output level in arg_int
break;
case U8X8_MSG_GPIO_CS: // CS (chip select) pin: Output level in arg_int
platform_gpio_write( u8x8_GetPinValue( u8x8, msg ), arg_int );
break;
case U8X8_MSG_GPIO_DC: // DC (data/cmd, A0, register select) pin: Output level in arg_int
platform_gpio_write( u8x8_GetPinValue( u8x8, msg ), arg_int );
break;
case U8X8_MSG_GPIO_RESET: // Reset pin: Output level in arg_int
if (u8x8_GetPinValue( u8x8, msg ) != U8X8_PIN_NONE)
platform_gpio_write( u8x8_GetPinValue(u8x8, msg), arg_int );
break;
case U8X8_MSG_GPIO_CS1: // CS1 (chip select) pin: Output level in arg_int
break;
case U8X8_MSG_GPIO_CS2: // CS2 (chip select) pin: Output level in arg_int
break;
case U8X8_MSG_GPIO_I2C_CLOCK: // arg_int=0: Output low at I2C clock pin
// arg_int=1: Input dir with pullup high for I2C clock pin
// for SW comm routine
platform_gpio_write( u8x8_GetPinValue( u8x8, msg ), arg_int );
break;
case U8X8_MSG_GPIO_I2C_DATA: // arg_int=0: Output low at I2C data pin
// arg_int=1: Input dir with pullup high for I2C data pin
// for SW comm routine
platform_gpio_write( u8x8_GetPinValue( u8x8, msg ), arg_int );
break;
case U8X8_MSG_GPIO_MENU_SELECT:
case U8X8_MSG_GPIO_MENU_NEXT:
case U8X8_MSG_GPIO_MENU_PREV:
case U8X8_MSG_GPIO_MENU_HOME:
u8x8_SetGPIOResult( u8x8, /* get menu select pin state */ 0 );
break;
default:
u8x8_SetGPIOResult( u8x8, 1 ); // default return value
break;
}
return 1;
}
// static variables containing info about the i2c link
// TODO: move to user space in u8x8_t once available
typedef struct {
uint8_t id;
} hal_i2c_t;
uint8_t u8x8_byte_nodemcu_i2c(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
{
uint8_t *data;
hal_i2c_t *hal = ((u8g2_nodemcu_t *)u8x8)->hal;
switch(msg) {
case U8X8_MSG_BYTE_SEND:
if (hal->id == 0) {
data = (uint8_t *)arg_ptr;
while( arg_int > 0 ) {
platform_i2c_send_byte( 0, *data );
data++;
arg_int--;
}
} else {
// invalid id
return 0;
}
break;
case U8X8_MSG_BYTE_INIT:
{
// the hal member initially contains the i2c id
int id = (int)hal;
if (!(hal = c_malloc( sizeof ( hal_i2c_t ) )))
return 0;
hal->id = id;
((u8g2_nodemcu_t *)u8x8)->hal = hal;
}
break;
case U8X8_MSG_BYTE_SET_DC:
break;
case U8X8_MSG_BYTE_START_TRANSFER:
if (hal->id == 0) {
platform_i2c_send_start( 0 );
platform_i2c_send_address( 0, u8x8_GetI2CAddress(u8x8), PLATFORM_I2C_DIRECTION_TRANSMITTER );
} else {
// invalid id
return 0;
}
break;
case U8X8_MSG_BYTE_END_TRANSFER:
if (hal->id == 0) {
platform_i2c_send_stop( 0 );
} else {
// invalid id
return 0;
}
break;
default:
return 0;
}
return 1;
}
// static variables containing info about the spi link
// TODO: move to user space in u8x8_t once available
typedef struct {
uint8_t host;
//spi_device_handle_t device;
uint8_t last_dc;
struct {
uint8_t *data;
size_t size, used;
} buffer;
} hal_spi_t;
static void flush_buffer_spi( hal_spi_t *hal )
{
if (hal->buffer.used > 0) {
platform_spi_blkwrite( hal->host, hal->buffer.used, hal->buffer.data );
hal->buffer.used = 0;
}
}
uint8_t u8x8_byte_nodemcu_spi(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
{
hal_spi_t *hal = ((u8g2_nodemcu_t *)u8x8)->hal;
switch(msg) {
case U8X8_MSG_BYTE_INIT:
{
/* disable chipselect */
u8x8_gpio_SetCS( u8x8, u8x8->display_info->chip_disable_level );
// the hal member initially contains the spi host id
int host = (int)hal;
if (!(hal = c_malloc( sizeof ( hal_spi_t ) )))
return 0;
hal->host = host;
((u8g2_nodemcu_t *)u8x8)->hal = hal;
hal->last_dc = 0;
}
break;
case U8X8_MSG_BYTE_SET_DC:
if (hal->last_dc != arg_int)
flush_buffer_spi( hal );
u8x8_gpio_SetDC( u8x8, arg_int );
hal->last_dc = arg_int;
break;
case U8X8_MSG_BYTE_START_TRANSFER:
hal->buffer.size = 256;
if (!(hal->buffer.data = (uint8_t *)c_malloc( hal->buffer.size )))
return 0;
hal->buffer.used = 0;
u8x8_gpio_SetCS( u8x8, u8x8->display_info->chip_enable_level );
break;
case U8X8_MSG_BYTE_SEND:
if (!hal->buffer.data)
return 0;
while (hal->buffer.size - hal->buffer.used < arg_int) {
hal->buffer.size *= 2;
uint8_t *tmp;
if (!(tmp = (uint8_t *)c_malloc( hal->buffer.size ))) {
c_free( hal->buffer.data );
hal->buffer.data = NULL;
return 0;
}
os_memcpy( tmp, hal->buffer.data, hal->buffer.used );
c_free( hal->buffer.data );
hal->buffer.data = tmp;
}
os_memcpy( hal->buffer.data + hal->buffer.used, arg_ptr, arg_int );
hal->buffer.used += arg_int;
break;
case U8X8_MSG_BYTE_END_TRANSFER:
if (!hal->buffer.data)
return 0;
flush_buffer_spi( hal );
u8x8_gpio_SetCS( u8x8, u8x8->display_info->chip_disable_level );
c_free( hal->buffer.data );
break;
default:
return 0;
}
return 1;
}

26
app/platform/u8x8_nodemcu_hal.h Normal file
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@ -0,0 +1,26 @@
#ifndef _U8X8_NODEMCU_HAL_H
#define _U8X8_NODEMCU_HAL_H
#include "u8g2.h"
// extend standard u8g2_t struct with info that's needed in the communication callbacks
typedef struct {
u8g2_t u8g2;
void *hal;
// elements for the overlay display driver
struct {
u8x8_msg_cb hardware_display_cb, template_display_cb;
int rfb_cb_ref;
uint8_t fb_update_ongoing;
} overlay;
} u8g2_nodemcu_t;
uint8_t u8x8_gpio_and_delay_nodemcu(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
uint8_t u8x8_byte_nodemcu_i2c(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
uint8_t u8x8_byte_nodemcu_spi(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr);
#endif /* _U8X8_NODEMCU_HAL_H */

50
app/u8g2lib/Makefile Normal file
View File

@ -0,0 +1,50 @@
#############################################################
# Required variables for each makefile
# Discard this section from all parent makefiles
# Expected variables (with automatic defaults):
# CSRCS (all "C" files in the dir)
# SUBDIRS (all subdirs with a Makefile)
# GEN_LIBS - list of libs to be generated ()
# GEN_IMAGES - list of images to be generated ()
# COMPONENTS_xxx - a list of libs/objs in the form
# subdir/lib to be extracted and rolled up into
# a generated lib/image xxx.a ()
#
ifndef PDIR
GEN_LIBS = u8g2lib.a
endif
STD_CFLAGS=-std=gnu11 -Wimplicit
#############################################################
# Configuration i.e. compile options etc.
# Target specific stuff (defines etc.) goes in here!
# Generally values applying to a tree are captured in the
# makefile at its root level - these are then overridden
# for a subtree within the makefile rooted therein
#
DEFINES += -DU8X8_USE_PINS
#############################################################
# Recursion Magic - Don't touch this!!
#
# Each subtree potentially has an include directory
# corresponding to the common APIs applicable to modules
# rooted at that subtree. Accordingly, the INCLUDE PATH
# of a module can only contain the include directories up
# its parent path, and not its siblings
#
# Required for each makefile to inherit from the parent
#
CSRCS := $(wildcard u8g2/src/clib/*.c *.c)
INCLUDES := $(INCLUDES) -I $(PDIR)include
INCLUDES += -I u8g2/src/clib
INCLUDES += -I ../libc
INCLUDES += -I ../lua
INCLUDES += -I ../platform
PDIR := ../$(PDIR)
sinclude $(PDIR)Makefile

185
app/u8g2lib/u8x8_d_fbrle.c Normal file
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@ -0,0 +1,185 @@
// Note: This file is intended to be shared between esp8266 and esp32 platform
#include "u8x8.h"
#include "lauxlib.h"
#include "u8x8_nodemcu_hal.h"
#include <stdlib.h>
#include <string.h>
static const u8x8_display_info_t u8x8_fbrle_display_info =
{
/* chip_enable_level = */ 0,
/* chip_disable_level = */ 1,
/* post_chip_enable_wait_ns = */ 0,
/* pre_chip_disable_wait_ns = */ 0,
/* reset_pulse_width_ms = */ 0,
/* post_reset_wait_ms = */ 0,
/* sda_setup_time_ns = */ 0,
/* sck_pulse_width_ns = */ 0,
/* sck_clock_hz = */ 0,
/* spi_mode = */ 0,
/* i2c_bus_clock_100kHz = */ 4,
/* data_setup_time_ns = */ 0,
/* write_pulse_width_ns = */ 0,
/* tile_width = */ 16,
/* tile_hight = */ 8,
/* default_x_offset = */ 0,
/* flipmode_x_offset = */ 0,
/* pixel_width = */ 128,
/* pixel_height = */ 64
};
static int bit_at( uint8_t *buf, int line, int x )
{
return buf[x] & (1 << line) ? 1 : 0;
}
struct fbrle_item
{
uint8_t start_x;
uint8_t len;
};
struct fbrle_line
{
uint8_t num_valid;
struct fbrle_item items[0];
};
static uint8_t u8x8_d_fbrle(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
{
u8g2_nodemcu_t *ext_u8g2 = (u8g2_nodemcu_t *)u8x8;
switch(msg)
{
case U8X8_MSG_DISPLAY_SETUP_MEMORY:
// forward to template display driver
return ext_u8g2->overlay.template_display_cb(u8x8, msg, arg_int, arg_ptr);
case U8X8_MSG_DISPLAY_INIT:
//u8x8_d_helper_display_init(u8x8);
ext_u8g2->overlay.fb_update_ongoing = 0;
break;
case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
case U8X8_MSG_DISPLAY_SET_FLIP_MODE:
break;
#ifdef U8X8_WITH_SET_CONTRAST
case U8X8_MSG_DISPLAY_SET_CONTRAST:
break;
#endif
case U8X8_MSG_DISPLAY_REFRESH:
ext_u8g2->overlay.fb_update_ongoing = 0;
break;
case U8X8_MSG_DISPLAY_DRAW_TILE:
if (ext_u8g2->overlay.fb_update_ongoing == 0) {
// tell rfb callback that a new framebuffer starts
if (ext_u8g2->overlay.rfb_cb_ref != LUA_NOREF) {
// fire callback with nil argument
lua_State *L = lua_getstate();
lua_rawgeti( L, LUA_REGISTRYINDEX, ext_u8g2->overlay.rfb_cb_ref );
lua_pushnil( L );
lua_call( L, 1, 0 );
}
// and note ongoing framebuffer update
ext_u8g2->overlay.fb_update_ongoing = 1;
}
{
// TODO: transport tile_y, needs structural change!
uint8_t tile_x = ((u8x8_tile_t *)arg_ptr)->x_pos;
tile_x *= 8;
tile_x += u8x8->x_offset;
uint8_t tile_w = ((u8x8_tile_t *)arg_ptr)->cnt * 8;
size_t fbrle_line_size = sizeof( struct fbrle_line ) + sizeof( struct fbrle_item ) * (tile_w/2);
int num_lines = 8; /*arg_val / (xwidth/8);*/
uint8_t *buf = ((u8x8_tile_t *)arg_ptr)->tile_ptr;
struct fbrle_line *fbrle_line;
if (!(fbrle_line = (struct fbrle_line *)malloc( fbrle_line_size ))) {
break;
}
for (int line = 0; line < num_lines; line++) {
int start_run = -1;
fbrle_line->num_valid = 0;
for (int x = tile_x; x < tile_x+tile_w; x++) {
if (bit_at( buf, line, x ) == 0) {
if (start_run >= 0) {
// inside run, end it and enter result
fbrle_line->items[fbrle_line->num_valid].start_x = start_run;
fbrle_line->items[fbrle_line->num_valid++].len = x - start_run;
//NODE_ERR( " line: %d x: %d len: %d\n", line, start_run, x - start_run );
start_run = -1;
}
} else {
if (start_run < 0) {
// outside run, start it
start_run = x;
}
}
if (fbrle_line->num_valid >= tile_w/2) break;
}
// active run?
if (start_run >= 0 && fbrle_line->num_valid < tile_w/2) {
fbrle_line->items[fbrle_line->num_valid].start_x = start_run;
fbrle_line->items[fbrle_line->num_valid++].len = tile_w - start_run;
}
// line done, trigger callback
if (ext_u8g2->overlay.rfb_cb_ref != LUA_NOREF) {
lua_State *L = lua_getstate();
lua_rawgeti( L, LUA_REGISTRYINDEX, ext_u8g2->overlay.rfb_cb_ref );
lua_pushlstring( L, (const char *)fbrle_line, fbrle_line_size );
lua_call( L, 1, 0 );
}
}
free( fbrle_line );
}
break;
default:
return 0;
break;
}
return 1;
}
uint8_t u8x8_d_overlay(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
{
uint8_t res = 1;
u8g2_nodemcu_t *ext_u8g2 = (u8g2_nodemcu_t *)u8x8;
switch(msg)
{
case U8X8_MSG_DISPLAY_SETUP_MEMORY:
// only call for hardware display
if (ext_u8g2->overlay.hardware_display_cb)
return ext_u8g2->overlay.hardware_display_cb(u8x8, msg, arg_int, arg_ptr);
break;
default:
// forward all messages first to hardware display and then to fbrle
if (ext_u8g2->overlay.hardware_display_cb)
res = ext_u8g2->overlay.hardware_display_cb(u8x8, msg, arg_int, arg_ptr);
u8x8_d_fbrle(u8x8, msg, arg_int, arg_ptr);
break;
}
return res;
}

263
lua_examples/u8g2/graphics_test.lua Normal file
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-- ***************************************************************************
-- Graphics Test
--
-- This script executes several features of u8glib to test their Lua bindings.
--
-- Note: It is prepared for SSD1306-based displays. Select your connectivity
-- type by calling either init_i2c_display() or init_spi_display() at
-- the bottom of this file.
--
-- ***************************************************************************
-- setup I2c and connect display
function init_i2c_display()
-- SDA and SCL can be assigned freely to available GPIOs
local sda = 5 -- GPIO14
local scl = 6 -- GPIO12
local sla = 0x3c
i2c.setup(0, sda, scl, i2c.SLOW)
disp = u8g2.ssd1306_i2c_128x64_noname(0, sla)
end
-- setup SPI and connect display
function init_spi_display()
-- Hardware SPI CLK = GPIO14
-- Hardware SPI MOSI = GPIO13
-- Hardware SPI MISO = GPIO12 (not used)
-- Hardware SPI /CS = GPIO15 (not used)
-- CS, D/C, and RES can be assigned freely to available GPIOs
local cs = 8 -- GPIO15, pull-down 10k to GND
local dc = 4 -- GPIO2
local res = 0 -- GPIO16
spi.setup(1, spi.MASTER, spi.CPOL_LOW, spi.CPHA_LOW, 8, 8)
-- we won't be using the HSPI /CS line, so disable it again
gpio.mode(8, gpio.INPUT, gpio.PULLUP)
disp = u8g2.ssd1306_128x64_noname(1, cs, dc, res)
end
function u8g2_prepare()
disp:setFont(u8g2.font_6x10_tf)
disp:setFontRefHeightExtendedText()
disp:setDrawColor(1)
disp:setFontPosTop()
disp:setFontDirection(0)
end
function u8g2_box_frame(a)
disp:drawStr( 0, 0, "drawBox")
disp:drawBox(5,10,20,10)
disp:drawBox(10+a,15,30,7)
disp:drawStr( 0, 30, "drawFrame")
disp:drawFrame(5,10+30,20,10)
disp:drawFrame(10+a,15+30,30,7)
end
function u8g2_disc_circle(a)
disp:drawStr( 0, 0, "drawDisc")
disp:drawDisc(10,18,9)
disp:drawDisc(24+a,16,7)
disp:drawStr( 0, 30, "drawCircle")
disp:drawCircle(10,18+30,9)
disp:drawCircle(24+a,16+30,7)
end
function u8g2_r_frame(a)
disp:drawStr( 0, 0, "drawRFrame/Box")
disp:drawRFrame(5, 10,40,30, a+1)
disp:drawRBox(50, 10,25,40, a+1)
end
function u8g2_string(a)
disp:setFontDirection(0)
disp:drawStr(30+a,31, " 0")
disp:setFontDirection(1)
disp:drawStr(30,31+a, " 90")
disp:setFontDirection(2)
disp:drawStr(30-a,31, " 180")
disp:setFontDirection(3)
disp:drawStr(30,31-a, " 270")
end
function u8g2_line(a)
disp:drawStr( 0, 0, "drawLine")
disp:drawLine(7+a, 10, 40, 55)
disp:drawLine(7+a*2, 10, 60, 55)
disp:drawLine(7+a*3, 10, 80, 55)
disp:drawLine(7+a*4, 10, 100, 55)
end
function u8g2_triangle(a)
local offset = a
disp:drawStr( 0, 0, "drawTriangle")
disp:drawTriangle(14,7, 45,30, 10,40)
disp:drawTriangle(14+offset,7-offset, 45+offset,30-offset, 57+offset,10-offset)
disp:drawTriangle(57+offset*2,10, 45+offset*2,30, 86+offset*2,53)
disp:drawTriangle(10+offset,40+offset, 45+offset,30+offset, 86+offset,53+offset)
end
function u8g2_ascii_1()
disp:drawStr( 0, 0, "ASCII page 1")
for y = 0, 5 do
for x = 0, 15 do
disp:drawStr(x*7, y*10+10, string.char(y*16 + x + 32))
end
end
end
function u8g2_ascii_2()
disp:drawStr( 0, 0, "ASCII page 2")
for y = 0, 5 do
for x = 0, 15 do
disp:drawStr(x*7, y*10+10, string.char(y*16 + x + 160))
end
end
end
function u8g2_extra_page(a)
disp:drawStr( 0, 0, "Unicode")
disp:setFont(u8g2.font_unifont_t_symbols)
disp:setFontPosTop()
disp:drawUTF8(0, 24, "☀ ☁")
if a <= 3 then
disp:drawUTF8(a*3, 36, "☂")
else
disp:drawUTF8(a*3, 36, "☔")
end
end
cross_width = 24
cross_height = 24
cross_bits = string.char(
0x00, 0x18, 0x00, 0x00, 0x24, 0x00, 0x00, 0x24, 0x00, 0x00, 0x42, 0x00,
0x00, 0x42, 0x00, 0x00, 0x42, 0x00, 0x00, 0x81, 0x00, 0x00, 0x81, 0x00,
0xC0, 0x00, 0x03, 0x38, 0x3C, 0x1C, 0x06, 0x42, 0x60, 0x01, 0x42, 0x80,
0x01, 0x42, 0x80, 0x06, 0x42, 0x60, 0x38, 0x3C, 0x1C, 0xC0, 0x00, 0x03,
0x00, 0x81, 0x00, 0x00, 0x81, 0x00, 0x00, 0x42, 0x00, 0x00, 0x42, 0x00,
0x00, 0x42, 0x00, 0x00, 0x24, 0x00, 0x00, 0x24, 0x00, 0x00, 0x18, 0x00)
cross_fill_width = 24
cross_fill_height = 24
cross_fill_bits = string.char(
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x18, 0x64, 0x00, 0x26,
0x84, 0x00, 0x21, 0x08, 0x81, 0x10, 0x08, 0x42, 0x10, 0x10, 0x3C, 0x08,
0x20, 0x00, 0x04, 0x40, 0x00, 0x02, 0x80, 0x00, 0x01, 0x80, 0x18, 0x01,
0x80, 0x18, 0x01, 0x80, 0x00, 0x01, 0x40, 0x00, 0x02, 0x20, 0x00, 0x04,
0x10, 0x3C, 0x08, 0x08, 0x42, 0x10, 0x08, 0x81, 0x10, 0x84, 0x00, 0x21,
0x64, 0x00, 0x26, 0x18, 0x00, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)
cross_block_width = 14
cross_block_height = 14
cross_block_bits = string.char(
0xFF, 0x3F, 0x01, 0x20, 0x01, 0x20, 0x01, 0x20, 0x01, 0x20, 0x01, 0x20,
0xC1, 0x20, 0xC1, 0x20, 0x01, 0x20, 0x01, 0x20, 0x01, 0x20, 0x01, 0x20,
0x01, 0x20, 0xFF, 0x3F)
function u8g2_bitmap_overlay(a)
local frame_size = 28
disp:drawStr(0, 0, "Bitmap overlay")
disp:drawStr(0, frame_size + 12, "Solid / transparent")
disp:setBitmapMode(0) -- solid
disp:drawFrame(0, 10, frame_size, frame_size)
disp:drawXBM(2, 12, cross_width, cross_height, cross_bits)
if bit.band(a, 4) > 0 then
disp:drawXBM(7, 17, cross_block_width, cross_block_height, cross_block_bits)
end
disp:setBitmapMode(1) -- transparent
disp:drawFrame(frame_size + 5, 10, frame_size, frame_size)
disp:drawXBM(frame_size + 7, 12, cross_width, cross_height, cross_bits)
if bit.band(a, 4) then
disp:drawXBM(frame_size + 12, 17, cross_block_width, cross_block_height, cross_block_bits)
end
end
function u8g2_bitmap_modes(transparent)
local frame_size = 24
disp:drawBox(0, frame_size * 0.5, frame_size * 5, frame_size)
disp:drawStr(frame_size * 0.5, 50, "Black")
disp:drawStr(frame_size * 2, 50, "White")
disp:drawStr(frame_size * 3.5, 50, "XOR")
if transparent == 0 then
disp:setBitmapMode(0) -- solid
disp:drawStr(0, 0, "Solid bitmap")
else
disp:setBitmapMode(1) -- transparent
disp:drawStr(0, 0, "Transparent bitmap")
end
disp:setDrawColor(0) -- Black
disp:drawXBM(frame_size * 0.5, 24, cross_width, cross_height, cross_bits)
disp:setDrawColor(1) -- White
disp:drawXBM(frame_size * 2, 24, cross_width, cross_height, cross_bits)
disp:setDrawColor(2) -- XOR
disp:drawXBM(frame_size * 3.5, 24, cross_width, cross_height, cross_bits)
end
function draw()
u8g2_prepare()
local d3 = bit.rshift(draw_state, 3)
local d7 = bit.band(draw_state, 7)
if d3 == 0 then
u8g2_box_frame(d7)
elseif d3 == 1 then
u8g2_disc_circle(d7)
elseif d3 == 2 then
u8g2_r_frame(d7)
elseif d3 == 3 then
u8g2_string(d7)
elseif d3 == 4 then
u8g2_line(d7)
elseif d3 == 5 then
u8g2_triangle(d7)
elseif d3 == 6 then
u8g2_ascii_1()
elseif d3 == 7 then
u8g2_ascii_2()
elseif d3 == 8 then
u8g2_extra_page(d7)
elseif d3 == 9 then
u8g2_bitmap_modes(0)
elseif d3 == 10 then
u8g2_bitmap_modes(1)
elseif d3 == 11 then
u8g2_bitmap_overlay(d7)
end
end
function loop()
-- picture loop
disp:clearBuffer()
draw()
disp:sendBuffer()
-- increase the state
draw_state = draw_state + 1
if draw_state >= 12*8 then
draw_state = 0
end
-- delay between each frame
loop_tmr:start()
end
draw_state = 0
loop_tmr = tmr.create()
loop_tmr:register(100, tmr.ALARM_SEMI, loop)
init_i2c_display()
--init_spi_display()
print("--- Starting Graphics Test ---")
loop_tmr:start()

115
lua_examples/u8glib/u8g_bitmaps.lua
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@ -1,115 +0,0 @@
-- ***************************************************************************
-- Bitmaps Test
--
-- This script executes the bitmap features of u8glib to test their Lua
-- integration.
--
-- Note: It is prepared for SSD1306-based displays. Select your connectivity
-- type by calling either init_i2c_display() or init_spi_display() at
-- the bottom of this file.
--
-- ***************************************************************************
-- setup I2c and connect display
function init_i2c_display()
-- SDA and SCL can be assigned freely to available GPIOs
local sda = 5 -- GPIO14
local scl = 6 -- GPIO12
local sla = 0x3c
i2c.setup(0, sda, scl, i2c.SLOW)
disp = u8g.ssd1306_128x64_i2c(sla)
end
-- setup SPI and connect display
function init_spi_display()
-- Hardware SPI CLK = GPIO14
-- Hardware SPI MOSI = GPIO13
-- Hardware SPI MISO = GPIO12 (not used)
-- Hardware SPI /CS = GPIO15 (not used)
-- CS, D/C, and RES can be assigned freely to available GPIOs
local cs = 8 -- GPIO15, pull-down 10k to GND
local dc = 4 -- GPIO2
local res = 0 -- GPIO16
spi.setup(1, spi.MASTER, spi.CPOL_LOW, spi.CPHA_LOW, 8, 8)
-- we won't be using the HSPI /CS line, so disable it again
gpio.mode(8, gpio.INPUT, gpio.PULLUP)
disp = u8g.ssd1306_128x64_hw_spi(cs, dc, res)
end
function xbm_picture()
disp:setFont(u8g.font_6x10)
disp:drawStr( 0, 10, "XBM picture")
disp:drawXBM( 0, 20, 38, 24, xbm_data )
end
function bitmap_picture(state)
disp:setFont(u8g.font_6x10)
disp:drawStr( 0, 10, "Bitmap picture")
disp:drawBitmap( 0 + (state * 10), 20 + (state * 4), 1, 8, bm_data )
end
-- the draw() routine
function draw(draw_state)
local component = bit.rshift(draw_state, 3)
if (component == 0) then
xbm_picture(bit.band(draw_state, 7))
elseif (component == 1) then
bitmap_picture(bit.band(draw_state, 7))
end
end
function draw_loop()
-- Draws one page and schedules the next page, if there is one
local function draw_pages()
draw(draw_state)
if disp:nextPage() then
node.task.post(draw_pages)
else
node.task.post(bitmap_test)
end
end
-- Restart the draw loop and start drawing pages
disp:firstPage()
node.task.post(draw_pages)
end
function bitmap_test()
if (draw_state <= 7 + 1*8) then
draw_state = draw_state + 1
else
print("--- Restarting Bitmap Test ---")
draw_state = 1
end
print("Heap: " .. node.heap())
-- retrigger draw_loop
node.task.post(draw_loop)
end
draw_state = 1
init_i2c_display()
--init_spi_display()
-- read XBM picture
file.open("u8glib_logo.xbm", "r")
xbm_data = file.read()
file.close()
-- read Bitmap picture
file.open("u8g_rook.bm", "r")
bm_data = file.read()
file.close()
print("--- Starting Bitmap Test ---")
node.task.post(draw_loop)

73
lua_examples/u8glib/u8g_drawloop.lua
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@ -1,73 +0,0 @@
------------------------------------------------------------------------------
-- u8glib example which shows how to implement the draw loop without causing
-- timeout issues with the WiFi stack. This is done by drawing one page at
-- a time, allowing the ESP SDK to do its house keeping between the page
-- draws.
--
-- This example assumes you have an SSD1306 display connected to pins 4 and 5
-- using I2C and that the profont22r is compiled into the firmware.
-- Please edit the init_display function to match your setup.
--
-- Example:
-- dofile("u8g_drawloop.lua")
------------------------------------------------------------------------------
local disp
local font
function init_display()
local sda = 4
local sdl = 5
local sla = 0x3c
i2c.setup(0,sda,sdl, i2c.SLOW)
disp = u8g.ssd1306_128x64_i2c(sla)
font = u8g.font_profont22r
end
local function setLargeFont()
disp:setFont(font)
disp:setFontRefHeightExtendedText()
disp:setDefaultForegroundColor()
disp:setFontPosTop()
end
-- Start the draw loop with the draw implementation in the provided function callback
function updateDisplay(func)
-- Draws one page and schedules the next page, if there is one
local function drawPages()
func()
if (disp:nextPage() == true) then
node.task.post(drawPages)
end
end
-- Restart the draw loop and start drawing pages
disp:firstPage()
node.task.post(drawPages)
end
function drawHello()
setLargeFont()
disp:drawStr(30,22, "Hello")
end
function drawWorld()
setLargeFont()
disp:drawStr(30,22, "World")
end
local drawDemo = { drawHello, drawWorld }
function demoLoop()
-- Start the draw loop with one of the demo functions
local f = table.remove(drawDemo,1)
updateDisplay(f)
table.insert(drawDemo,f)
end
-- Initialise the display
init_display()
-- Draw demo page immediately and then schedule an update every 5 seconds.
-- To test your own drawXYZ function, disable the next two lines and call updateDisplay(drawXYZ) instead.
demoLoop()
tmr.alarm(4, 5000, 1, demoLoop)

177
lua_examples/u8glib/u8g_graphics_test.lua
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@ -1,177 +0,0 @@
-- ***************************************************************************
-- Graphics Test
--
-- This script executes several features of u8glib to test their Lua bindings.
--
-- Note: It is prepared for SSD1306-based displays. Select your connectivity
-- type by calling either init_i2c_display() or init_spi_display() at
-- the bottom of this file.
--
-- ***************************************************************************
-- setup I2c and connect display
function init_i2c_display()
-- SDA and SCL can be assigned freely to available GPIOs
local sda = 5 -- GPIO14
local scl = 6 -- GPIO12
local sla = 0x3c
i2c.setup(0, sda, scl, i2c.SLOW)
disp = u8g.ssd1306_128x64_i2c(sla)
end
-- setup SPI and connect display
function init_spi_display()
-- Hardware SPI CLK = GPIO14
-- Hardware SPI MOSI = GPIO13
-- Hardware SPI MISO = GPIO12 (not used)
-- Hardware SPI /CS = GPIO15 (not used)
-- CS, D/C, and RES can be assigned freely to available GPIOs
local cs = 8 -- GPIO15, pull-down 10k to GND
local dc = 4 -- GPIO2
local res = 0 -- GPIO16
spi.setup(1, spi.MASTER, spi.CPOL_LOW, spi.CPHA_LOW, 8, 8)
-- we won't be using the HSPI /CS line, so disable it again
gpio.mode(8, gpio.INPUT, gpio.PULLUP)
disp = u8g.ssd1306_128x64_hw_spi(cs, dc, res)
end
-- graphic test components
function prepare()
disp:setFont(u8g.font_6x10)
disp:setFontRefHeightExtendedText()
disp:setDefaultForegroundColor()
disp:setFontPosTop()
end
function box_frame(a)
disp:drawStr(0, 0, "drawBox")
disp:drawBox(5, 10, 20, 10)
disp:drawBox(10+a, 15, 30, 7)
disp:drawStr(0, 30, "drawFrame")
disp:drawFrame(5, 10+30, 20, 10)
disp:drawFrame(10+a, 15+30, 30, 7)
end
function disc_circle(a)
disp:drawStr(0, 0, "drawDisc")
disp:drawDisc(10, 18, 9)
disp:drawDisc(24+a, 16, 7)
disp:drawStr(0, 30, "drawCircle")
disp:drawCircle(10, 18+30, 9)
disp:drawCircle(24+a, 16+30, 7)
end
function r_frame(a)
disp:drawStr(0, 0, "drawRFrame/Box")
disp:drawRFrame(5, 10, 40, 30, a+1)
disp:drawRBox(50, 10, 25, 40, a+1)
end
function stringtest(a)
disp:drawStr(30+a, 31, " 0")
disp:drawStr90(30, 31+a, " 90")
disp:drawStr180(30-a, 31, " 180")
disp:drawStr270(30, 31-a, " 270")
end
function line(a)
disp:drawStr(0, 0, "drawLine")
disp:drawLine(7+a, 10, 40, 55)
disp:drawLine(7+a*2, 10, 60, 55)
disp:drawLine(7+a*3, 10, 80, 55)
disp:drawLine(7+a*4, 10, 100, 55)
end
function triangle(a)
local offset = a
disp:drawStr(0, 0, "drawTriangle")
disp:drawTriangle(14,7, 45,30, 10,40)
disp:drawTriangle(14+offset,7-offset, 45+offset,30-offset, 57+offset,10-offset)
disp:drawTriangle(57+offset*2,10, 45+offset*2,30, 86+offset*2,53)
disp:drawTriangle(10+offset,40+offset, 45+offset,30+offset, 86+offset,53+offset)
end
function ascii_1()
local x, y, s
disp:drawStr(0, 0, "ASCII page 1")
for y = 0, 5, 1 do
for x = 0, 15, 1 do
s = y*16 + x + 32
disp:drawStr(x*7, y*10+10, string.char(s))
end
end
end
function extra_page(a)
disp:drawStr(0, 12, "setScale2x2")
disp:setScale2x2()
disp:drawStr(0, 6+a, "setScale2x2")
disp:undoScale()
end
-- the draw() routine
function draw(draw_state)
local component = bit.rshift(draw_state, 3)
prepare()
if (component == 0) then
box_frame(bit.band(draw_state, 7))
elseif (component == 1) then
disc_circle(bit.band(draw_state, 7))
elseif (component == 2) then
r_frame(bit.band(draw_state, 7))
elseif (component == 3) then
stringtest(bit.band(draw_state, 7))
elseif (component == 4) then
line(bit.band(draw_state, 7))
elseif (component == 5) then
triangle(bit.band(draw_state, 7))
elseif (component == 6) then
ascii_1()
elseif (component == 7) then
extra_page(bit.band(draw_state, 7))
end
end
function draw_loop()
-- Draws one page and schedules the next page, if there is one
local function draw_pages()
draw(draw_state)
if disp:nextPage() then
node.task.post(draw_pages)
else
node.task.post(graphics_test)
end
end
-- Restart the draw loop and start drawing pages
disp:firstPage()
node.task.post(draw_pages)
end
function graphics_test()
if (draw_state <= 7 + 8*8) then
draw_state = draw_state + 1
else
print("--- Restarting Graphics Test ---")
draw_state = 0
end
print("Heap: " .. node.heap())
-- retrigger draw_loop
node.task.post(draw_loop)
end
draw_state = 0
init_i2c_display()
--init_spi_display()
print("--- Starting Graphics Test ---")
node.task.post(draw_loop)

BIN
lua_examples/u8glib/u8g_rook.bm
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97
lua_examples/u8glib/u8g_rotation.lua
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@ -1,97 +0,0 @@
-- ***************************************************************************
-- Rotation Test
--
-- This script executes the rotation features of u8glib to test their Lua
-- integration.
--
-- Note: It is prepared for SSD1306-based displays. Select your connectivity
-- type by calling either init_i2c_display() or init_spi_display() at
-- the bottom of this file.
--
-- ***************************************************************************
-- setup I2c and connect display
function init_i2c_display()
-- SDA and SCL can be assigned freely to available GPIOs
local sda = 5 -- GPIO14
local scl = 6 -- GPIO12
local sla = 0x3c
i2c.setup(0, sda, scl, i2c.SLOW)
disp = u8g.ssd1306_128x64_i2c(sla)
end
-- setup SPI and connect display
function init_spi_display()
-- Hardware SPI CLK = GPIO14
-- Hardware SPI MOSI = GPIO13
-- Hardware SPI MISO = GPIO12 (not used)
-- Hardware SPI /CS = GPIO15 (not used)
-- CS, D/C, and RES can be assigned freely to available GPIOs
local cs = 8 -- GPIO15, pull-down 10k to GND
local dc = 4 -- GPIO2
local res = 0 -- GPIO16
spi.setup(1, spi.MASTER, spi.CPOL_LOW, spi.CPHA_LOW, 8, 8)
-- we won't be using the HSPI /CS line, so disable it again
gpio.mode(8, gpio.INPUT, gpio.PULLUP)
disp = u8g.ssd1306_128x64_hw_spi(cs, dc, res)
end
-- the draw() routine
function draw()
disp:setFont(u8g.font_6x10)
disp:drawStr( 0+0, 20+0, "Hello!")
disp:drawStr( 0+2, 20+16, "Hello!")
disp:drawBox(0, 0, 3, 3)
disp:drawBox(disp:getWidth()-6, 0, 6, 6)
disp:drawBox(disp:getWidth()-9, disp:getHeight()-9, 9, 9)
disp:drawBox(0, disp:getHeight()-12, 12, 12)
end
function rotate()
if (next_rotation < tmr.now() / 1000) then
if (dir == 0) then
disp:undoRotation()
elseif (dir == 1) then
disp:setRot90()
elseif (dir == 2) then
disp:setRot180()
elseif (dir == 3) then
disp:setRot270()
end
dir = dir + 1
dir = bit.band(dir, 3)
-- schedule next rotation step in 1000ms
next_rotation = tmr.now() / 1000 + 1000
end
end
function rotation_test()
print("--- Starting Rotation Test ---")
dir = 0
next_rotation = 0
local loopcnt
for loopcnt = 1, 100, 1 do
rotate()
disp:firstPage()
repeat
draw(draw_state)
until disp:nextPage() == false
tmr.delay(100000)
tmr.wdclr()
end
print("--- Rotation Test done ---")
end
--init_i2c_display()
init_spi_display()
rotation_test()

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