just something to play with lvgl

simu is working partially
TX16S has worked, is now broken, due to changes to make simu work

working means, lvgl shows something on the display and handles touch events

to stop libopenui from interfering this is needed in libopenui:

diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 09cc3d3..cda095f 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -79,7 +79,7 @@ void MainWindow::checkEvents()
   if (touchPanelEventOccured()) {
     short lastDeltaX = touchState.lastDeltaX;
     short lastDeltaY = touchState.lastDeltaY;;
-    touchState = touchPanelRead();
+    //touchState = touchPanelRead();
     touchState.lastDeltaX = lastDeltaX;
     touchState.lastDeltaY = lastDeltaY;
   }
@@ -177,6 +177,7 @@ void MainWindow::invalidate(const rect_t & rect)

 bool MainWindow::refresh()
 {
+return false;
   if (invalidatedRect.w) {
     if (invalidatedRect.x > 0 || invalidatedRect.y > 0 || invalidatedRect.w < LCD_W || invalidatedRect.h < LCD_H) {
       TRACE_WINDOWS("Refresh rect: left=%d top=%d width=%d height=%d", invalidatedRect.left(), invalidatedRect.top(), invalidatedRect.w, invalidatedRect.h);

add eclipse projetc files and helper scripts

some cleanup and fix simu

NV14 simu and TX16s simu are working with lvgl
no more magic numbers
added files for a lvgl wrapper class for initialization

moved lvgl initialization to LvglWrapper
code cleanup
started implementing a widget as a drawing target for libopenui

with some additional changesin libopenui, the libopenui ui can be displayed on a lvgl canvas

fix lvgl full screen canvas

update personal project files

add file with patch instructions for libopenui

works on NV14 with a canvas as the drawingtarget for libopenui and direct touch handling by libopenui

fix indentation

enabled double buffering for LVGL using the LCD frame buffers
transparancies are broken on TX16s
simulator does not work
untested on NV14

simu for NV14 and TX16S run and work mostly
works mostly on NV14 and TX16S

some pop ups (e.g. USB) flicker
LUA full screen apps won't display anything

touch handling still done by libopenui
on TX16S lvgl widgets are rotated by 180°

untested on all other radios

fix using of commeted out function. No touch handling for LVGL right now

rotate screens, so that libopenui and LVGL have the same screen rotation

removed the need to rotate images and fonts when using LVGL
currently the changes can be easily reverted

deleted lvgl copy

building with lvgl as unmodified submodule works

move lv_conf to radio/src

delete eclipse project files

use specific branch for lvgl

use libopenui lvgl branch
remove now unneeded help.txt

add missing file to colorlcd CMakelist

fix image display problems in TX16S simulator

just something to play with lvgl
simu is working partially
TX16S has worked, is now broken, due to changes to make simu work

working means, lvgl shows something on the display and handles touch events

to stop libopenui from interfering this is needed in libopenui:

diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 09cc3d3..cda095f 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -79,7 +79,7 @@ void MainWindow::checkEvents()
   if (touchPanelEventOccured()) {
     short lastDeltaX = touchState.lastDeltaX;
     short lastDeltaY = touchState.lastDeltaY;;
-    touchState = touchPanelRead();
+    //touchState = touchPanelRead();
     touchState.lastDeltaX = lastDeltaX;
     touchState.lastDeltaY = lastDeltaY;
   }
@@ -177,6 +177,7 @@ void MainWindow::invalidate(const rect_t & rect)

 bool MainWindow::refresh()
 {
+return false;
   if (invalidatedRect.w) {
     if (invalidatedRect.x > 0 || invalidatedRect.y > 0 || invalidatedRect.w < LCD_W || invalidatedRect.h < LCD_H) {
       TRACE_WINDOWS("Refresh rect: left=%d top=%d width=%d height=%d", invalidatedRect.left(), invalidatedRect.top(), invalidatedRect.w, invalidatedRect.h);

add eclipse projetc files and helper scripts

some cleanup and fix simu

NV14 simu and TX16s simu are working with lvgl
no more magic numbers
added files for a lvgl wrapper class for initialization

moved lvgl initialization to LvglWrapper
code cleanup
started implementing a widget as a drawing target for libopenui

with some additional changesin libopenui, the libopenui ui can be displayed on a lvgl canvas

fix lvgl full screen canvas

update personal project files

add file with patch instructions for libopenui

works on NV14 with a canvas as the drawingtarget for libopenui and direct touch handling by libopenui

fix indentation

enabled double buffering for LVGL using the LCD frame buffers
transparancies are broken on TX16s
simulator does not work
untested on NV14

simu for NV14 and TX16S run and work mostly
works mostly on NV14 and TX16S

some pop ups (e.g. USB) flicker
LUA full screen apps won't display anything

touch handling still done by libopenui
on TX16S lvgl widgets are rotated by 180°

untested on all other radios

fix using of commeted out function. No touch handling for LVGL right now

rotate screens, so that libopenui and LVGL have the same screen rotation

removed the need to rotate images and fonts when using LVGL
currently the changes can be easily reverted

deleted lvgl copy

building with lvgl as unmodified submodule works

move lv_conf to radio/src

delete eclipse project files

.gitmodules

@@ -1,7 +1,7 @@
 [submodule "libopenui"]
 	path = radio/src/thirdparty/libopenui
 	url = https://github.com/EdgeTX/libopenui.git
-	branch = master
+	branch = lvgl
 [submodule "radio/src/thirdparty/AccessDenied"]
 	path = radio/src/thirdparty/AccessDenied
 	url = https://github.com/raphaelcoeffic/AccessDenied.git
@@ -12,3 +12,6 @@
 	path = radio/src/thirdparty/FreeRTOS
 	url = https://github.com/FreeRTOS/FreeRTOS-Kernel.git
 	shallow = true
+[submodule "radio/src/thirdparty/lvgl"]
+	path = radio/src/thirdparty/lvgl
+	url = https://github.com/lvgl/lvgl.git

cmake.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+cmake --target simu "$@"

help.txt

@@ -0,0 +1,68 @@
+additional libopenui patch:
+diff --git a/src/bitmapbuffer.h b/src/bitmapbuffer.h
+index 146c815..f5ce245 100644
+--- a/src/bitmapbuffer.h
++++ b/src/bitmapbuffer.h
+@@ -36,7 +36,7 @@ constexpr uint8_t STASHED = 0x33;
+ #define APPLY_OFFSET() x += this->offsetX; y += this->offsetY
+ #define RESTORE_OFFSET()  this->offsetX = offsetX, this->offsetY = offsetY
+
+-#if defined(LCD_VERTICAL_INVERT)
++#if defined(LCD_VERTICAL_INVERT) && 0
+   #define MOVE_PIXEL_RIGHT(p, count)   p -= count
+ #else
+   #define MOVE_PIXEL_RIGHT(p, count)   p += count
+@@ -156,7 +156,7 @@ class BitmapBufferBase
+
+     inline const pixel_t * getPixelPtrAbs(coord_t x, coord_t y) const
+     {
+-#if defined(LCD_VERTICAL_INVERT)
++#if defined(LCD_VERTICAL_INVERT) && 0
+       x = _width - x - 1;
+       y = _height - y - 1;
+ #endif
+@@ -401,7 +401,7 @@ class BitmapBuffer: public BitmapBufferBase<pixel_t>
+
+     inline const pixel_t * getPixelPtrAbs(coord_t x, coord_t y) const
+     {
+-#if defined(LCD_VERTICAL_INVERT)
++#if defined(LCD_VERTICAL_INVERT) && 0
+       x = _width - x - 1;
+       y = _height - y - 1;
+ #endif
+@@ -410,7 +410,7 @@ class BitmapBuffer: public BitmapBufferBase<pixel_t>
+
+     inline pixel_t * getPixelPtrAbs(coord_t x, coord_t y)
+     {
+-#if defined(LCD_VERTICAL_INVERT)
++#if defined(LCD_VERTICAL_INVERT) && 0
+       x = _width - x - 1;
+       y = _height - y - 1;
+ #endif
+diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
+index c256d0b..dede0c9 100644
+--- a/src/mainwindow.cpp
++++ b/src/mainwindow.cpp
+@@ -179,9 +179,21 @@ void MainWindow::invalidate(const rect_t & rect)
+     invalidatedRect = rect;
+   }
+ }
+-
++#include "lvgl/lvgl.h"
++extern lv_obj_t * canvas;
++extern BitmapBuffer lcdBackup;
+ bool MainWindow::refresh()
+ {
++  if (invalidatedRect.w) {
++    lcdBackup.setOffset(0, 0);
++    lcdBackup.setClippingRect(0,LCD_W,0, LCD_H);
++    fullPaint(&lcdBackup);
++    lv_canvas_copy_buf(canvas, lcdBackup.getData(), 0, 0, LCD_W, LCD_H);
++    lv_img_cache_invalidate_src(lcdBackup.getData());
++    lv_obj_invalidate(canvas);
++  }
++  return false;
++
+   if (invalidatedRect.w) {
+     if (invalidatedRect.x > 0 || invalidatedRect.y > 0 || invalidatedRect.w < LCD_W || invalidatedRect.h < LCD_H) {
+       TRACE_WINDOWS("Refresh rect: left=%d top=%d width=%d height=%d", invalidatedRect.left(), invalidatedRect.top(), invalidatedRect.w, invalidatedRect.h);

prepare.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+mkdir -p _Release
+cd _Release
+
+cmake -DPCB=X10 -DPCBREV=TX16S -DDEFAULT_MODE=2 -DGVARS=YES -DPPM_UNIT=US -DHELI=YES -DLUA=YES -DINTERNAL_GPS=NO -DCMAKE_BUILD_TYPE=Release ../
+
+cd ..
+mkdir -p _Debug
+cd _Debug
+cmake -DPCB=X10 -DPCBREV=TX16S -DDEFAULT_MODE=2 -DGVARS=YES -DPPM_UNIT=US -DHELI=YES -DLUA=YES -DINTERNAL_GPS=NO -DCMAKE_BUILD_TYPE=Debug ../
+
+cd ..
+mkdir -p _NV14
+cd _NV14
+cmake -DPCB=NV14 -DDEFAULT_MODE=2 -DGVARS=YES -DPPM_UNIT=US -DHELI=YES -DLUA=YES -DINTERNAL_GPS=NO -DCMAKE_BUILD_TYPE=Debug ../

radio/src/bitmaps/480x272/CMakeLists.txt

@@ -11,8 +11,8 @@ else()
   if(PCBREV STREQUAL T18)
     # straight screen
   else()
-    set(BITMAP_ARGS ${BITMAP_ARGS} --reverse)
-    set(MASK_ARGS ${MASK_ARGS} --reverse)
+#    set(BITMAP_ARGS ${BITMAP_ARGS} --reverse)
+#    set(MASK_ARGS ${MASK_ARGS} --reverse)
   endif()
 endif()
 

radio/src/fonts/CMakeLists.txt

@@ -19,7 +19,7 @@ else()
 endif()
 
 if(PCB STREQUAL X10)
-  set(FONT_ARGS ${FONT_ARGS} --reverse)
+#  set(FONT_ARGS ${FONT_ARGS} --reverse)
 endif()
 
 add_truetype_font_target(9      9  ${subset} none "${FONT_ARGS}")

radio/src/gui/colorlcd/CMakeLists.txt

@@ -75,6 +75,7 @@ set(GUI_SRC
   menu_screen.cpp
   screen_setup.cpp
   switch_warn_dialog.cpp
+  LvglWrapper.cpp
   )
 
 macro(add_gui_src src)
@@ -134,6 +135,151 @@ foreach(LIBOPENUI_FILE ${LIBOPENUI_SRC})
   set(SRC ${SRC} thirdparty/libopenui/src/${LIBOPENUI_FILE})
 endforeach()
 
+set(LVGL_SOURCES
+  gpu/lv_gpu_stm32_dma2d.c
+  core/lv_group.c
+  core/lv_obj.c
+  core/lv_event.c
+  core/lv_indev.c
+  core/lv_obj_scroll.c
+  core/lv_obj_draw.c
+  core/lv_disp.c
+  core/lv_obj_style.c
+  core/lv_theme.c
+  core/lv_obj_style_gen.c
+  core/lv_refr.c
+  core/lv_indev_scroll.c
+  core/lv_obj_class.c
+  core/lv_obj_tree.c
+  core/lv_obj_pos.c
+  font/lv_font_montserrat_20.c
+  font/lv_font_unscii_8.c
+  font/lv_font_montserrat_48.c
+  font/lv_font_montserrat_28.c
+  font/lv_font_montserrat_26.c
+  font/lv_font_montserrat_38.c
+  font/lv_font_montserrat_18.c
+  font/lv_font_montserrat_8.c
+  font/lv_font_montserrat_44.c
+  font/lv_font_montserrat_40.c
+  font/lv_font_dejavu_16_persian_hebrew.c
+  font/lv_font_montserrat_32.c
+  font/lv_font_montserrat_46.c
+  font/lv_font_montserrat_14.c
+  font/lv_font_montserrat_12_subpx.c
+  font/lv_font_montserrat_34.c
+  font/lv_font_montserrat_16.c
+  font/lv_font_montserrat_42.c
+  font/lv_font_montserrat_12.c
+  font/lv_font_simsun_16_cjk.c
+  font/lv_font_montserrat_30.c
+  font/lv_font_montserrat_22.c
+  font/lv_font_montserrat_10.c
+  font/lv_font_fmt_txt.c
+  font/lv_font_montserrat_24.c
+  font/lv_font_loader.c
+  font/lv_font_montserrat_28_compressed.c
+  font/lv_font.c
+  font/lv_font_montserrat_36.c
+  font/lv_font_unscii_16.c
+  misc/lv_timer.c
+  misc/lv_txt.c
+  misc/lv_gc.c
+  misc/lv_style_gen.c
+  misc/lv_templ.c
+  misc/lv_color.c
+  misc/lv_fs.c
+  misc/lv_printf.c
+  misc/lv_style.c
+  misc/lv_log.c
+  misc/lv_area.c
+  misc/lv_math.c
+  misc/lv_tlsf.c
+  misc/lv_anim_timeline.c
+  misc/lv_ll.c
+  misc/lv_bidi.c
+  misc/lv_mem.c
+  misc/lv_utils.c
+  misc/lv_async.c
+  misc/lv_anim.c
+  misc/lv_txt_ap.c
+  draw/lv_draw_mask.c
+  draw/lv_img_cache.c
+  draw/lv_draw_blend.c
+  draw/lv_draw_line.c
+  draw/lv_img_buf.c
+  draw/lv_draw_rect.c
+  draw/lv_draw_label.c
+  draw/lv_draw_img.c
+  draw/lv_draw_arc.c
+  draw/lv_draw_triangle.c
+  draw/lv_img_decoder.c
+  hal/lv_hal_indev.c
+  hal/lv_hal_disp.c
+  hal/lv_hal_tick.c
+  extra/others/snapshot/lv_snapshot.c
+  extra/layouts/grid/lv_grid.c
+  extra/layouts/flex/lv_flex.c
+  extra/libs/bmp/lv_bmp.c
+  extra/libs/gif/lv_gif.c
+  extra/libs/gif/gifdec.c
+  extra/libs/freetype/lv_freetype.c
+  extra/libs/qrcode/lv_qrcode.c
+  extra/libs/qrcode/qrcodegen.c
+  extra/libs/sjpg/tjpgd.c
+  extra/libs/sjpg/lv_sjpg.c
+  extra/libs/fsdrv/lv_fs_win32.c
+  extra/libs/fsdrv/lv_fs_stdio.c
+  extra/libs/fsdrv/lv_fs_posix.c
+  extra/libs/fsdrv/lv_fs_fatfs.c
+  extra/libs/rlottie/lv_rlottie.c
+  extra/libs/png/lv_png.c
+  extra/libs/png/lodepng.c
+  extra/lv_extra.c
+  extra/widgets/imgbtn/lv_imgbtn.c
+  extra/widgets/win/lv_win.c
+  extra/widgets/colorwheel/lv_colorwheel.c
+  extra/widgets/list/lv_list.c
+  extra/widgets/chart/lv_chart.c
+  extra/widgets/calendar/lv_calendar_header_arrow.c
+  extra/widgets/calendar/lv_calendar.c
+  extra/widgets/calendar/lv_calendar_header_dropdown.c
+  extra/widgets/tileview/lv_tileview.c
+  extra/widgets/led/lv_led.c
+  extra/widgets/spinner/lv_spinner.c
+  extra/widgets/tabview/lv_tabview.c
+  extra/widgets/meter/lv_meter.c
+  extra/widgets/spinbox/lv_spinbox.c
+  extra/widgets/animimg/lv_animimg.c
+  extra/widgets/span/lv_span.c
+  extra/widgets/keyboard/lv_keyboard.c
+  extra/widgets/msgbox/lv_msgbox.c
+  extra/themes/basic/lv_theme_basic.c
+  extra/themes/default/lv_theme_default.c
+  extra/themes/mono/lv_theme_mono.c
+  widgets/lv_line.c
+  widgets/lv_dropdown.c
+  widgets/lv_objx_templ.c
+  widgets/lv_canvas.c
+  widgets/lv_switch.c
+  widgets/lv_btnmatrix.c
+  widgets/lv_bar.c
+  widgets/lv_roller.c
+  widgets/lv_img.c
+  widgets/lv_btn.c
+  widgets/lv_checkbox.c
+  widgets/lv_label.c
+  widgets/lv_table.c
+  widgets/lv_slider.c
+  widgets/lv_textarea.c
+  widgets/lv_arc.c
+)
+
+
+foreach(LVGL_FILE ${LVGL_SOURCES})
+  set(SRC ${SRC} thirdparty/lvgl/src/${LVGL_FILE})
+endforeach()
+
 add_gui_src(fullscreen_dialog.cpp)
 add_gui_src(message_dialog.cpp)
 add_gui_src(confirm_dialog.cpp)