// 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 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 ); luaL_pcallx( 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 ); luaL_pcallx( 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; }