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Tasmota/tasmota/xdrv_52_3_berry_lvgl.ino

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/*
xdrv_52_3_berry_native.ino - Berry scripting language, native fucnctions
Copyright (C) 2021 Stephan Hadinger, Berry language by Guan Wenliang https://github.com/Skiars/berry
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef USE_BERRY
#ifdef USE_LVGL
#include <berry.h>
#include "lvgl.h"
#include "be_mapping.h"
#include "be_ctypes.h"
#include "lv_berry.h"
#include "Adafruit_LvGL_Glue.h"
// Berry easy logging
extern "C" {
extern void berry_log_C(const char * berry_buf, ...);
extern const be_ntv_class_def_t lv_classes[];
extern const size_t lv_classes_size;
}
extern Adafruit_LvGL_Glue * glue;
/********************************************************************
* Structures used by LVGL_Berry
*******************************************************************/
class LVBE_button {
public:
bool pressed = false; // what is the current state
bool inverted = false; // false: button pressed is HIGH, true: button pressed is LOW
int8_t pin = -1; // physical GPIO (-1 if unconfigured)
uint32_t millis_last_state_change = 0; // last millis() time stamp when the state changed, used for debouncing
const uint32_t debounce_time = 10; // Needs to stabilize for 10ms before state change
inline void set_inverted(bool inv) { inverted = inv; }
inline bool get_inverted(void) const { return inverted; }
inline bool valid(void) const { return pin >= 0; }
bool read_gpio(void) const {
bool cur_state = digitalRead(pin);
if (inverted) { cur_state = !cur_state; }
return cur_state;
}
void set_gpio(int8_t _pin) { // is the button pressed
pin = _pin;
pressed = read_gpio();
millis_last_state_change = millis();
}
bool state_changed(void) { // do we need to report a change
if (!valid()) { return false; }
if (TimeReached(millis_last_state_change + debounce_time)) {
// read current state of GPIO after debounce
if (read_gpio() != pressed) {
return true;
}
}
return false;
}
bool clear_state_changed(void) { // read and clear the state
pressed = read_gpio();
millis_last_state_change = millis();
return pressed;
}
};
class LVBE_globals {
public:
lv_indev_drv_t indev_drv;
LList<lv_indev_t*> indev_list;
// input devices
LVBE_button btn[3];
};
LVBE_globals lvbe;
extern void start_lvgl(const char * uconfig);
extern void lv_ex_get_started_1(void);
extern "C" {
}
/*********************************************************************************************\
* Native functions mapped to Berry functions
*
* import power
*
* power.read() -> map
*
\*********************************************************************************************/
extern "C" {
/*********************************************************************************************\
* Support for Freetype fonts
\*********************************************************************************************/
// load freetype font by name in file-system
int lv0_load_freetype_font(bvm *vm) {
#ifdef USE_LVGL_FREETYPE
int argc = be_top(vm);
if (argc == 3 && be_isstring(vm, 1) && be_isint(vm, 2) && be_isint(vm, 3)) {
lv_ft_info_t info = {};
info.name = be_tostring(vm, 1);
info.weight = be_toint(vm, 2);
info.style = be_toint(vm, 3);
lv_ft_font_init(&info);
lv_font_t * font = info.font;
if (font != nullptr) {
be_find_global_or_module_member(vm, "lv.lv_font");
be_pushcomptr(vm, font);
be_call(vm, 1);
be_pop(vm, 1);
be_return(vm);
} else {
be_return_nil(vm);
}
}
be_raise(vm, kTypeError, nullptr);
#else // USE_LVGL_FREETYPE
be_raise(vm, "feature_error", "FreeType fonts are not available, use '#define USE_LVGL_FREETYPE 1'");
#endif // USE_LVGL_FREETYPE
}
/*********************************************************************************************\
* Support for embedded fonts in Flash
\*********************************************************************************************/
// We create tables for Font matching
// Size of `0` indicates end of table
typedef struct {
int16_t size;
const lv_font_t *font;
} lv_font_table_t;
typedef struct {
const char * name;
const lv_font_table_t * table;
} lv_font_names_t;
// Montserrat Font
const lv_font_table_t lv_montserrat_fonts[] = {
#if LV_FONT_MONTSERRAT_8
{ 8, &lv_font_montserrat_8 },
#endif
#if LV_FONT_MONTSERRAT_10
{ 10, &lv_font_montserrat_10 },
#endif
#if LV_FONT_MONTSERRAT_12
{ 12, &lv_font_montserrat_12 },
#endif
#if LV_FONT_MONTSERRAT_14
{ 14, &lv_font_montserrat_14 },
#endif
#if LV_FONT_MONTSERRAT_16
{ 16, &lv_font_montserrat_16 },
#endif
#if LV_FONT_MONTSERRAT_18
{ 18, &lv_font_montserrat_18 },
#endif
#if LV_FONT_MONTSERRAT_20
{ 20, &lv_font_montserrat_20 },
#endif
#if LV_FONT_MONTSERRAT_22
{ 22, &lv_font_montserrat_22 },
#endif
#if LV_FONT_MONTSERRAT_24
{ 24, &lv_font_montserrat_24 },
#endif
#if LV_FONT_MONTSERRAT_26
{ 26, &lv_font_montserrat_26 },
#endif
#if LV_FONT_MONTSERRAT_28
{ 28, &lv_font_montserrat_28 },
#endif
#if LV_FONT_MONTSERRAT_28_COMPRESSED
{ 28, &lv_font_montserrat_28_compressed, },
#endif
#if LV_FONT_MONTSERRAT_30
{ 30, &lv_font_montserrat_30 },
#endif
#if LV_FONT_MONTSERRAT_32
{ 32, &lv_font_montserrat_32 },
#endif
#if LV_FONT_MONTSERRAT_34
{ 34, &lv_font_montserrat_34 },
#endif
#if LV_FONT_MONTSERRAT_36
{ 36, &lv_font_montserrat_36 },
#endif
#if LV_FONT_MONTSERRAT_38
{ 38, &lv_font_montserrat_38 },
#endif
#if LV_FONT_MONTSERRAT_40
{ 40, &lv_font_montserrat_40 },
#endif
#if LV_FONT_MONTSERRAT_42
{ 42, &lv_font_montserrat_42 },
#endif
#if LV_FONT_MONTSERRAT_44
{ 44, &lv_font_montserrat_44 },
#endif
#if LV_FONT_MONTSERRAT_46
{ 46, &lv_font_montserrat_46 },
#endif
#if LV_FONT_MONTSERRAT_48
{ 48, &lv_font_montserrat_48 },
#endif
{ 0, nullptr}
};
// unscii fonts
const lv_font_table_t lv_unscii_fonts[] = {
#if LV_FONT_UNSCII_8
{ 8, &lv_font_unscii_8 },
#endif
#if LV_FONT_UNSCII_16
{ 16, &lv_font_unscii_16 },
#endif
{ 0, nullptr}
};
// Seg7 Font
const lv_font_table_t lv_seg7_fonts[] = {
{ 8, &seg7_8 },
{ 10, &seg7_10 },
{ 12, &seg7_12 },
{ 14, &seg7_14 },
{ 16, &seg7_16 },
{ 18, &seg7_18 },
{ 20, &seg7_20 },
{ 24, &seg7_24 },
{ 28, &seg7_28 },
{ 36, &seg7_36 },
{ 48, &seg7_48 },
{ 0, nullptr}
};
// robotocondensed-latin1
const lv_font_table_t lv_robotocondensed_fonts[] = {
#if ROBOTOCONDENSED_REGULAR_12_LATIN1
{ 12, &robotocondensed_regular_12_latin1 },
#endif
#if ROBOTOCONDENSED_REGULAR_14_LATIN1
{ 14, &robotocondensed_regular_14_latin1 },
#endif
#if ROBOTOCONDENSED_REGULAR_16_LATIN1
{ 16, &robotocondensed_regular_16_latin1 },
#endif
#if ROBOTOCONDENSED_REGULAR_20_LATIN1
{ 20, &robotocondensed_regular_20_latin1 },
#endif
#if ROBOTOCONDENSED_REGULAR_22_LATIN1
{ 22, &robotocondensed_regular_22_latin1 },
#endif
#if ROBOTOCONDENSED_REGULAR_24_LATIN1
{ 24, &robotocondensed_regular_24_latin1 },
#endif
#if ROBOTOCONDENSED_REGULAR_28_LATIN1
{ 28, &robotocondensed_regular_28_latin1 },
#endif
#if ROBOTOCONDENSED_REGULAR_32_LATIN1
{ 32, &robotocondensed_regular_32_latin1 },
#endif
#if ROBOTOCONDENSED_REGULAR_36_LATIN1
{ 36, &robotocondensed_regular_36_latin1 },
#endif
#if ROBOTOCONDENSED_REGULAR_38_LATIN1
{ 38, &robotocondensed_regular_38_latin1 },
#endif
#if ROBOTOCONDENSED_REGULAR_40_LATIN1
{ 40, &robotocondensed_regular_40_latin1 },
#endif
#if ROBOTOCONDENSED_REGULAR_44_LATIN1
{ 44, &robotocondensed_regular_44_latin1 },
#endif
#if ROBOTOCONDENSED_REGULAR_48_LATIN1
{ 48, &robotocondensed_regular_48_latin1 },
#endif
{ 0, nullptr}
};
// register all included fonts
const lv_font_names_t lv_embedded_fonts[] = {
{ "montserrat", lv_montserrat_fonts },
{ "seg7", lv_seg7_fonts },
{ "unscii", lv_unscii_fonts},
#ifdef USE_LVGL_OPENHASP
{ "robotocondensed", lv_robotocondensed_fonts },
#endif
{ nullptr, nullptr}
};
// If size is zero, it is read at arg 1
int lv_load_embedded_font(bvm *vm, const char * name, int16_t size) {
if (0 == size) {
if (be_top(vm) >= 1 && be_isint(vm, 1)) {
size = be_toindex(vm, 1);
}
}
if (name == nullptr || 0 == size) {
be_raise(vm, "value_error", "");
}
// first look for font
const lv_font_names_t * font_name_cursor = lv_embedded_fonts;
for (font_name_cursor = lv_embedded_fonts; font_name_cursor->name; font_name_cursor++) {
if (strcmp(name, font_name_cursor->name) == 0) break; // found
}
if (font_name_cursor->name == nullptr) {
be_raisef(vm, "value_error", "unknown font '%s'", name);
}
// scan for font size
const lv_font_table_t * font_entry = font_name_cursor->table;
for (font_entry = font_name_cursor->table; font_entry->size; font_entry++) {
if (font_entry->size == size) break; // found
}
if (font_entry->size == 0) {
be_raisef(vm, "value_error", "unknown font size '%s-%i'", name, size);
}
be_find_global_or_module_member(vm, "lv.lv_font");
be_pushcomptr(vm, (void*)font_entry->font);
be_call(vm, 1);
be_pop(vm, 1);
be_return(vm);
}
int lv0_load_montserrat_font(bvm *vm) {
return lv_load_embedded_font(vm, "montserrat", 0);
}
int lv0_load_seg7_font(bvm *vm) {
return lv_load_embedded_font(vm, "seg7", 0);
}
int lv0_load_robotocondensed_latin1_font(bvm *vm) {
#ifdef USE_LVGL_OPENHASP
return lv_load_embedded_font(vm, "robotocondensed", 0);
#endif // USE_LVGL_OPENHASP
be_raise(vm, kTypeError, nullptr);
}
int lv0_load_font_embedded(bvm *vm) {
if ((be_top(vm) >= 2) && (be_isstring(vm, 1)) && (be_isint(vm, 2))) {
return lv_load_embedded_font(vm, be_tostring(vm, 1), be_toint(vm, 2));
}
be_return_nil(vm);
}
/*********************************************************************************************\
* Tasmota Logo
\*********************************************************************************************/
#include "lvgl_berry/tasmota_logo_64_truecolor_alpha.h"
void lv_img_set_tasmota_logo(lv_obj_t * img) {
lv_img_set_src(img, &tasmota_logo_64_truecolor);
}
/*********************************************************************************************\
* LVGL Start
*
* Calls uDisplay and starts LVGL
\*********************************************************************************************/
// lv.start(instance, instance) -> nil
int lv0_start(bvm *vm);
int lv0_start(bvm *vm) {
int32_t argc = be_top(vm); // Get the number of arguments
if (argc == 0 || (argc == 1 && be_isstring(vm, 1))) {
const char * uconfig = nullptr;
if (argc == 1) {
uconfig = be_tostring(vm, 1);
}
start_lvgl(uconfig);
// call lv.splash_remove() to kill any current splash screen
if (be_getglobal(vm, "lv")) {
if (be_getmember(vm, -1, "splash_remove")) {
// call it
be_call(vm, 0);
}
be_pop(vm, 1);
}
be_pop(vm, 1);
be_return_nil(vm);
}
be_raise(vm, kTypeError, nullptr);
}
/*********************************************************************************************\
* LVGL Input Devices
*
* Calls uDisplay and starts LVGL
*
* lv.register_button_encoder([inv: bool]) -> nil
\*********************************************************************************************/
void lvbe_encoder_with_keys_read(lv_indev_drv_t * drv, lv_indev_data_t*data);
int lv0_register_button_encoder(bvm *vm); // add buttons with encoder logic
int lv0_register_button_encoder(bvm *vm) {
int32_t argc = be_top(vm); // Get the number of arguments
bool inverted = false;
// berry_log_C("lv0_register_button_encoder argc=%d inverted=%d", argc, be_tobool(vm, 1));
if (argc >= 1) {
inverted = be_tobool(vm, 1); // get the inverted flag
}
// we need 3 buttons from the template
int32_t btn0 = Pin(GPIO_INPUT, 0);
int32_t btn1 = Pin(GPIO_INPUT, 1);
int32_t btn2 = Pin(GPIO_INPUT, 2);
if (btn0 < 0 || btn1 < 0 || btn2 < 0) {
be_raise(vm, "template_error", "You need to configure GPIO Inputs 1/2/3");
}
lvbe.btn[0].set_gpio(btn0);
lvbe.btn[0].set_inverted(inverted);
lvbe.btn[1].set_gpio(btn1);
lvbe.btn[1].set_inverted(inverted);
lvbe.btn[2].set_gpio(btn2);
lvbe.btn[2].set_inverted(inverted);
berry_log_C(D_LOG_LVGL "Button Rotary encoder using GPIOs %d,%d,%d%s", btn0, btn1, btn2, inverted ? " (inverted)" : "");
lv_indev_drv_init(&lvbe.indev_drv);
lvbe.indev_drv.type = LV_INDEV_TYPE_ENCODER;
lvbe.indev_drv.read_cb = lvbe_encoder_with_keys_read;
lv_indev_t * indev = lv_indev_drv_register(&lvbe.indev_drv);
lvbe.indev_list.addHead(indev); // keep track of indevs
be_find_global_or_module_member(vm, "lv.lv_indev");
be_pushint(vm, (int32_t) indev);
be_call(vm, 1);
be_pop(vm, 1);
be_return(vm);
}
/*********************************************************************************************\
* LVGL Input Devices - callbacks
\*********************************************************************************************/
// typedef struct {
// lv_point_t point; /**< For LV_INDEV_TYPE_POINTER the currently pressed point*/
// uint32_t key; /**< For LV_INDEV_TYPE_KEYPAD the currently pressed key*/
// uint32_t btn_id; /**< For LV_INDEV_TYPE_BUTTON the currently pressed button*/
// int16_t enc_diff; /**< For LV_INDEV_TYPE_ENCODER number of steps since the previous read*/
// lv_indev_state_t state; /**< LV_INDEV_STATE_REL or LV_INDEV_STATE_PR*/
// } lv_indev_data_t;
void lvbe_encoder_with_keys_read(lv_indev_drv_t * drv, lv_indev_data_t *data){
// scan through buttons if we need to report something
uint32_t i;
for (i = 0; i < 3; i++) {
if (lvbe.btn[i].state_changed()) {
switch (i) {
case 0: data->key = LV_KEY_LEFT; break;
case 1: data->key = LV_KEY_ENTER; break;
case 2: data->key = LV_KEY_RIGHT; break;
default: break;
}
bool state = lvbe.btn[i].clear_state_changed();
data->state = state ? LV_INDEV_STATE_PR : LV_INDEV_STATE_REL;
// berry_log_C("Button event key %d state %d,%d", data->key, state, data->state);
break;
}
}
// do we have more to report?
data->continue_reading = false;
for (/* continue where we left */; i < 3; i++) {
if (lvbe.btn[i].state_changed()) {
data->continue_reading = true;
}
}
}
/*********************************************************************************************\
* Screenshot in raw format
\********************************************************************************************/
int lv0_screenshot(bvm *vm);
int lv0_screenshot(bvm *vm) {
if (!glue) { be_return_nil(vm); }
char fname[32];
snprintf(fname, sizeof(fname), "/screenshot-%d.bmp", Rtc.utc_time);
File f = dfsp->open(fname, "w");
if (f) {
glue->setScreenshotFile(&f);
uint32_t bmp_width = lv_disp_get_hor_res(nullptr);
uint32_t bmp_height = lv_disp_get_ver_res(nullptr);
// write BMP header
static const uint8_t bmp_sign[] = { 0x42, 0x4d }; // BM = Windows
f.write(bmp_sign, sizeof(bmp_sign));
size_t bmp_size = bmp_width * bmp_height * LV_COLOR_DEPTH / 8 + 0x44;
f.write((uint8_t*)&bmp_size, sizeof(bmp_size));
uint32_t zero = 0;
f.write((uint8_t*) &zero, sizeof(zero)); // reserved 4-bytes
uint32_t bmp_offset_to_pixels = 0x44; // TODO
f.write((uint8_t*) &bmp_offset_to_pixels, sizeof(bmp_offset_to_pixels));
// DIB Header BITMAPINFOHEADER
size_t bmp_dib_header_size = 52; // BITMAPV2INFOHEADER
f.write((uint8_t*) &bmp_dib_header_size, sizeof(bmp_dib_header_size));
f.write((uint8_t*) &bmp_width, sizeof(bmp_width));
f.write((uint8_t*) &bmp_height, sizeof(bmp_height));
// rest of header
// BITMAPV2INFOHEADER = 52 bytes header, 40 bytes sub-header
static const uint8_t bmp_dib_header[] = {
0x01, 0x00, // planes
16, 0x00, // bits per pixel = 16
0x03, 0x00, 0x00, 0x00, // compression = BI_BITFIELDS uncrompressed
0x00, 0x00, 0x00, 0x00, // Image size, 0 is valid for BI_RGB (uncompressed) TODO
0x00, 0x00, 0x00, 0x00, // X pixels per meter
0x00, 0x00, 0x00, 0x00, // Y pixels per meter
0x00, 0x00, 0x00, 0x00, // Colors in table
0x00, 0x00, 0x00, 0x00, // Important color count
// RGB masks
0x00, 0xF8, 0x00, 0x00, // Red channel mask
0xE0, 0x07, 0x00, 0x00, // Green channel mask
0x1F, 0x00, 0x00, 0x00, // Blue channel mask
0x00, 0x00, // Padding to align on 4 bytes boundary
};
f.write(bmp_dib_header, sizeof(bmp_dib_header));
// now we can write the pixels array
// redraw screen
lv_obj_invalidate(lv_scr_act());
lv_refr_now(lv_disp_get_default());
glue->stopScreenshot();
f.close();
}
be_pushstring(vm, fname);
be_return(vm);
}
}
#else // USE_LVGL
// // define weak aliases
// int32_t b_nrg_read(struct bvm *vm) __attribute__ ((weak, alias ("b_wire_energymissing")));
#endif // USE_LVGL
#endif // USE_BERRY
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