2 files changed, 93 insertions, 0 deletions
diff --git a/lib/lvgl b/lib/lvgl
deleted file mode 160000
-Subproject 0732400e7b564dd0e7dc4a924619d8e19c5b23a
diff --git a/lib/lvgl/src/draw/lv_draw_layer.c b/lib/lvgl/src/draw/lv_draw_layer.c
new file mode 100644
index 00000000..da35682d
--- /dev/null
+++ b/lib/lvgl/src/draw/lv_draw_layer.c
@@ -0,0 +1,93 @@
+/**
+ * @file lv_draw_layer.c
+ *
+ */
+
+/*********************
+ *      INCLUDES
+ *********************/
+#include "lv_draw.h"
+#include "lv_draw_arc.h"
+#include "../core/lv_refr.h"
+
+/*********************
+ *      DEFINES
+ *********************/
+
+/**********************
+ *      TYPEDEFS
+ **********************/
+
+/**********************
+ *  STATIC PROTOTYPES
+ **********************/
+
+/**********************
+ *  STATIC VARIABLES
+ **********************/
+
+/**********************
+ *      MACROS
+ **********************/
+
+/**********************
+ *   GLOBAL FUNCTIONS
+ **********************/
+
+lv_draw_layer_ctx_t * lv_draw_layer_create(lv_draw_ctx_t * draw_ctx, const lv_area_t * layer_area,
+                                           lv_draw_layer_flags_t flags)
+{
+    if(draw_ctx->layer_init == NULL) return NULL;
+
+    lv_draw_layer_ctx_t * layer_ctx = lv_mem_alloc(draw_ctx->layer_instance_size);
+    LV_ASSERT_MALLOC(layer_ctx);
+    if(layer_ctx == NULL) {
+        LV_LOG_WARN("Couldn't allocate a new layer context");
+        return NULL;
+    }
+
+    lv_memset_00(layer_ctx, draw_ctx->layer_instance_size);
+
+    lv_disp_t * disp_refr = _lv_refr_get_disp_refreshing();
+    layer_ctx->original.buf = draw_ctx->buf;
+    layer_ctx->original.buf_area = draw_ctx->buf_area;
+    layer_ctx->original.clip_area = draw_ctx->clip_area;
+    layer_ctx->original.screen_transp = disp_refr->driver->screen_transp;
+    layer_ctx->area_full = *layer_area;
+
+    lv_draw_layer_ctx_t * init_layer_ctx =  draw_ctx->layer_init(draw_ctx, layer_ctx, flags);
+    if(NULL == init_layer_ctx) {
+        lv_mem_free(layer_ctx);
+    }
+    return init_layer_ctx;
+}
+
+void lv_draw_layer_adjust(struct _lv_draw_ctx_t * draw_ctx, struct _lv_draw_layer_ctx_t * layer_ctx,
+                          lv_draw_layer_flags_t flags)
+{
+    if(draw_ctx->layer_adjust) draw_ctx->layer_adjust(draw_ctx, layer_ctx, flags);
+}
+
+void lv_draw_layer_blend(struct _lv_draw_ctx_t * draw_ctx, struct _lv_draw_layer_ctx_t * layer_ctx,
+                         lv_draw_img_dsc_t * draw_dsc)
+{
+    if(draw_ctx->layer_blend) draw_ctx->layer_blend(draw_ctx, layer_ctx, draw_dsc);
+}
+
+void lv_draw_layer_destroy(lv_draw_ctx_t * draw_ctx, lv_draw_layer_ctx_t * layer_ctx)
+{
+
+    lv_draw_wait_for_finish(draw_ctx);
+    draw_ctx->buf = layer_ctx->original.buf;
+    draw_ctx->buf_area = layer_ctx->original.buf_area;
+    draw_ctx->clip_area = layer_ctx->original.clip_area;
+    lv_disp_t * disp_refr = _lv_refr_get_disp_refreshing();
+    disp_refr->driver->screen_transp = layer_ctx->original.screen_transp;
+
+    if(draw_ctx->layer_destroy) draw_ctx->layer_destroy(draw_ctx, layer_ctx);
+    lv_mem_free(layer_ctx);
+}
+
+/**********************
+ *   STATIC FUNCTIONS
+ **********************/