From e65c9fa18138e8623d5f8e5e8f25fcf0e3d3cf67 Mon Sep 17 00:00:00 2001
From: JF <jf@codingfield.com>
Date: Mon, 10 Feb 2020 21:05:33 +0100
Subject: Integration of lvgl : continued...

---
 src/DisplayApp/LittleVgl.cpp | 59 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 src/DisplayApp/LittleVgl.cpp

(limited to 'src/DisplayApp/LittleVgl.cpp')

diff --git a/src/DisplayApp/LittleVgl.cpp b/src/DisplayApp/LittleVgl.cpp
new file mode 100644
index 00000000..7830953a
--- /dev/null
+++ b/src/DisplayApp/LittleVgl.cpp
@@ -0,0 +1,59 @@
+#include <FreeRTOS.h>
+#include <projdefs.h>
+#include <task.h>
+#include <libs/lvgl/src/lv_core/lv_obj.h>
+#include <hal/nrf_rtc.h>
+#include <libraries/log/nrf_log.h>
+
+#include <libs/lvgl/src/lv_themes/lv_theme.h>
+#include <libs/lvgl/src/lv_themes/lv_theme_night.h>
+
+#include "LittleVgl.h"
+
+using namespace Pinetime::Components;
+
+static void disp_flush(lv_disp_drv_t * disp_drv, const lv_area_t * area, lv_color_t * color_p) {
+  auto* lvgl = static_cast<LittleVgl*>(disp_drv->user_data);
+  lvgl->FlushDisplay(area, color_p);
+}
+
+LittleVgl::LittleVgl(Pinetime::Drivers::St7789& lcd) : lcd{lcd} {
+  lv_init();
+  lv_theme_t* theme = lv_theme_night_init(10, NULL);
+  lv_theme_set_current(theme);
+
+  lv_disp_buf_init(&disp_buf_2, buf2_1, buf2_2, LV_HOR_RES_MAX * 2);   /*Initialize the display buffer*/
+  lv_disp_drv_init(&disp_drv);                    /*Basic initialization*/
+
+  /*Set up the functions to access to your display*/
+
+  /*Set the resolution of the display*/
+  disp_drv.hor_res = 240;
+  disp_drv.ver_res = 240;
+
+  /*Used to copy the buffer's content to the display*/
+  disp_drv.flush_cb = disp_flush;
+  /*Set a display buffer*/
+  disp_drv.buffer = &disp_buf_2;
+  disp_drv.user_data = this;
+
+  /*Finally register the driver*/
+  lv_disp_drv_register(&disp_drv);
+
+
+}
+
+void LittleVgl::FlushDisplay(const lv_area_t *area, lv_color_t *color_p) {
+  auto x = area->x1;
+  auto y = area->y1;
+  auto width = (area->x2-area->x1)+1;
+  auto height = (area->y2-area->y1)+1;
+  lcd.BeginDrawBuffer(x, y, width, height);
+  lcd.NextDrawBuffer(reinterpret_cast<const uint8_t *>(color_p), width * height*2) ;
+
+  ulTaskNotifyTake(pdTRUE, 500);
+
+  /* IMPORTANT!!!
+   * Inform the graphics library that you are ready with the flushing*/
+  lv_disp_flush_ready(&disp_drv);
+}
-- 
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