I2C Implementation (#84)

2024-11-24 18:04:57 +01:00
parent 881c8517bf
commit d8731eaa17
51 changed files with 936 additions and 433 deletions
@@ -0,0 +1,61 @@
+#include "TactilityCore.h"
+
+#include "M5Unified.hpp"
+#include "esp_err.h"
+#include "esp_lvgl_port.h"
+
+static void flush_callback(lv_display_t* display, const lv_area_t* area, uint8_t* px_map) {
+    M5GFX& gfx = *(M5GFX*)lv_display_get_driver_data(display);
+
+    int32_t width = (area->x2 - area->x1 + 1);
+    int32_t height = (area->y2 - area->y1 + 1);
+
+    gfx.startWrite();
+    gfx.setAddrWindow(area->x1, area->y1, width, height);
+    gfx.writePixels((lgfx::rgb565_t*)px_map, width * height);
+    gfx.endWrite();
+
+    lv_display_flush_ready(display);
+}
+
+
+_Nullable lv_disp_t* m5stack_lvgl_display(bool usePsram) {
+    M5GFX& gfx = M5.Display;
+
+    static lv_display_t* display = lv_display_create(gfx.width(), gfx.height());
+    LV_ASSERT_MALLOC(display)
+    if (display == nullptr) {
+        return nullptr;
+    }
+
+    lv_display_set_driver_data(display, &gfx);
+    lv_display_set_flush_cb(display, flush_callback);
+
+    const size_t bytes_per_pixel = 2; // assume 16-bit color
+    const size_t buffer_size = gfx.width() * gfx.height() * bytes_per_pixel / 8;
+    if (usePsram) {
+        static auto* buffer1 = (uint8_t*)heap_caps_malloc(buffer_size, MALLOC_CAP_SPIRAM);
+        LV_ASSERT_MALLOC(buffer1)
+        static auto* buffer2 = (uint8_t*)heap_caps_malloc(buffer_size, MALLOC_CAP_SPIRAM);
+        LV_ASSERT_MALLOC(buffer2)
+        lv_display_set_buffers(
+            display,
+            (void*)buffer1,
+            (void*)buffer2,
+            buffer_size,
+            LV_DISPLAY_RENDER_MODE_PARTIAL
+        );
+    } else {
+        static auto* buffer = (uint8_t*)malloc(buffer_size);
+        LV_ASSERT_MALLOC(buffer)
+        lv_display_set_buffers(
+            display,
+            (void*)buffer,
+            nullptr,
+            buffer_size,
+            LV_DISPLAY_RENDER_MODE_PARTIAL
+        );
+    }
+
+    return display;
+}