rename main file to inkpot

main/CMakeLists.txt

@@ -1,2 +1,2 @@
-idf_component_register(SRCS "esp32-lua-example.c"
+idf_component_register(SRCS "inkpot.c"
                     INCLUDE_DIRS ".")

main/inkpot.c

@@ -14,11 +14,7 @@
 #include "esp_littlefs.h"
 #include <dirent.h>
 
-// epd
-//#include <epd_highlevel.h>
-#include <epdiy.h>
-
-#define WAVEFORM EPD_BUILTIN_WAVEFORM
+#include "paper.h"
 
 #define WIFI_SCAN_LIST_SIZE 10
 #define LUA_FILE_PATH "/assets"
@@ -110,6 +106,9 @@ void run_embedded_lua_test(const char *lua_script, const char *test_name) {
     luaL_openlibs(L);
     log_memory_usage("After luaL_openlibs");
 
+    luaopen_paper(L);
+    log_memory_usage("After luaopen_paper");
+
     if (luaL_dostring(L, lua_script) == LUA_OK) {
         lua_pop(L, lua_gettop(L));
     } else {
@@ -170,10 +169,8 @@ void scan_wifi_networks(void) {
     ESP_LOGI(TAG, "Wi-Fi scan completed.");
 }
 
-EpdiyHighlevelState hl;
-uint8_t* fb;
-
 void app_main(void) {
+    /*
     epd_init(&epd_board_lilygo_t5_47, &ED097TC2, EPD_LUT_64K);
     // epd_set_vcom(1560);
     hl = epd_hl_init(WAVEFORM);
@@ -196,14 +193,37 @@ void app_main(void) {
         .width = 200,
         .height = 100
     };
-    epd_fill_rect(some_rect, 0x0, fb);
+    epd_draw_rect(some_rect, 0x0, fb);
+
+    // write a message
+    int cursor_x = 100;
+    int cursor_y = 300;
+    epd_write_default(&DepartureMono22, "TODO 2025-10-04", &cursor_x, &cursor_y, fb);
+
+    int cursor_x_2 = 100;
+    int cursor_y_2 = 344;
+    epd_write_default(&DepartureMono11, "- [ ] Create epaper thingy", &cursor_x_2, &cursor_y_2, fb);
+
+    int cursor_x_3 = 100;
+    int cursor_y_3 = 377;
+    epd_write_default(&DepartureMono11, "- [ ] Be kind", &cursor_x_3, &cursor_y_3, fb);
+
+    int cursor_x_4 = 100;
+    int cursor_y_4 = 410;
+    epd_write_default(&DepartureMono11, "- [ ] Enjoy life", &cursor_x_4, &cursor_y_4, fb);
+
+    // draw a line pattern
+    for (int i = 0; i < 20; i++) {
+        epd_draw_line(400 + i * 20, 100, 400 + (i + 1) * 20, 300, 0x0, fb);
+        epd_draw_line(401 + i * 20, 100, 401 + (i + 1) * 20, 300, 0x0, fb);
+    }
 
     // finally, update the display!
     int temperature = 25;
     epd_poweron();
     epd_hl_update_screen(&hl, MODE_GC16, temperature);
     epd_poweroff();
-
+    */
     // Initialize and mount the filesystem
     init_filesystem();
 
@@ -211,6 +231,9 @@ void app_main(void) {
     const char *simple_script = "answer = 42; print('The answer is: '..answer)";
     run_embedded_lua_test(simple_script, "Simple Embedded Script");
 
+    //const char *paper_script = "local paper = require('paper'); paper.init(); print('width: '..paper.get_width(), 'height: '..paper.get_height())";
+    //run_embedded_lua_test(paper_script, "Paper Script");
+
     // Test 2: Run Lua script from a file (e.g., fibonacci.lua)
     run_lua_file("fibonacci.lua", "Fibonacci Script from File");
 
@@ -218,7 +241,7 @@ void app_main(void) {
     run_lua_file("qr_code.lua", "QR Code Script from File");
 
     // Perform Wi-Fi scan
-    scan_wifi_networks();
+    // scan_wifi_networks();
 
     ESP_LOGI(TAG, "End of testing application.");
 

main/paper.h

@@ -0,0 +1,72 @@
+#ifndef PAPER_H_
+#define PAPER_H_
+
+#include <lua.h>
+#include <lauxlib.h>
+
+#include <epdiy.h>
+#include "departure_mono_11.h"
+#include "departure_mono_22.h"
+
+#define WAVEFORM EPD_BUILTIN_WAVEFORM
+
+EpdiyHighlevelState hl;
+uint8_t* fb;
+
+static int init (lua_State *L) {
+    epd_init(&epd_board_lilygo_t5_47, &ED097TC2, EPD_LUT_64K);
+    // epd_set_vcom(1560);
+    hl = epd_hl_init(WAVEFORM);
+    epd_set_rotation(EPD_ROT_LANDSCAPE);
+    fb = epd_hl_get_framebuffer(&hl);
+    return 0;
+}
+
+static int clear (lua_State *L){
+    epd_clear();
+    return 0;
+}
+
+static int get_width (lua_State *L) {
+    int width = epd_rotated_display_width();
+    lua_pushnumber(L, width);
+    return 1;
+}
+
+static int get_height (lua_State *L) {
+    int height = epd_rotated_display_height();
+    lua_pushnumber(L, height);
+    return 1;
+}
+
+static int draw_line (lua_State *L) {
+    return 0;
+}
+
+static int update (lua_State *L) {
+    int temperature = 25;
+    epd_poweron();
+    epd_hl_update_screen(&hl, MODE_GC16, temperature);
+    epd_poweroff();
+    return 0;
+}
+
+static const struct luaL_Reg paper[] = {
+  {"init", init},
+  {"clear", clear},
+
+  {"get_width", get_width},
+  {"get_height", get_height},
+
+  {"draw_line", draw_line},
+  {"update", update},
+
+  {NULL, NULL},
+};
+
+int luaopen_paper (lua_State *L) {
+    luaL_newlib(L, paper);
+    return 1;
+}
+
+#endif // PAPER_H_