Implement 2D graphic API (#87)

* Implement 2D graphic library based on LittlevGL * Add lvgl license file
2019-08-01 16:57:54 +08:00
parent 1db5a2f697
commit 9aa9cbde77
86 changed files with 8675 additions and 10 deletions
--- a/samples/gui/wasm-apps/lvgl-compatible/Makefile
+++ b/samples/gui/wasm-apps/lvgl-compatible/Makefile
@ -0,0 +1,39 @@
+# Copyright (C) 2019 Intel Corporation.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+CC = emcc
+APP_DIR = ${shell pwd}
+IWASM_DIR=../../../../core/iwasm
+CFLAGS += -O3 \
+	  -Wno-int-conversion \
+	  -DLV_CONF_INCLUDE_SIMPLE \
+	  -I$(APP_DIR)/src/ \
+	  -I$(IWASM_DIR)/lib/app-libs/base/ \
+	  -I$(IWASM_DIR)/lib/native-interface/ \
+	  -I$(IWASM_DIR)/lib/app-libs/extension/sensor \
+	  -I$(IWASM_DIR)/lib/app-libs/extension/gui \
+	  -I$(IWASM_DIR)/lib/app-libs/extension/connection
+
+SRCS += $(APP_DIR)/src/main.c
+
+# For app size consideration, not all but necessary app libs are included
+SRCS += $(IWASM_DIR)/lib/app-libs/base/timer.c
+SRCS += $(IWASM_DIR)/lib/app-libs/extension/gui/src/*.c
+
+all: 
+	@$(CC) $(CFLAGS) $(SRCS) \
+    -s WASM=1 -s SIDE_MODULE=1 -s ASSERTIONS=1 -s STACK_OVERFLOW_CHECK=2 \
+    -s TOTAL_MEMORY=65536 -s TOTAL_STACK=2048\
+    -s "EXPORTED_FUNCTIONS=['_on_init', '_on_timer_callback', '_on_widget_event']" \
+    -o ui_app_lvgl_compatible.wasm
--- a/samples/gui/wasm-apps/lvgl-compatible/src/main.c
+++ b/samples/gui/wasm-apps/lvgl-compatible/src/main.c
@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2019 Intel Corporation.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdlib.h>
+#include <unistd.h>
+#include "wasm_app.h"
+#include "lvgl.h"
+
+extern char g_widget_text[];
+
+static void btn_event_cb(lv_obj_t *btn, lv_event_t event);
+
+uint32_t count = 0;
+char count_str[11] = { 0 };
+lv_obj_t *hello_world_label;
+lv_obj_t *count_label;
+lv_obj_t *btn1;
+lv_obj_t *label_count1;
+int label_count1_value = 0;
+char label_count1_str[11] = { 0 };
+
+void timer1_update(user_timer_t timer1)
+{
+    if ((count % 100) == 0) {
+        sprintf(count_str, "%d", count / 100);
+        lv_label_set_text(count_label, count_str);
+    }
+    ++count;
+}
+
+void on_init()
+{
+    char *text;
+
+    hello_world_label = lv_label_create(NULL, NULL);
+    lv_label_set_text(hello_world_label, "Hello world!");
+    text = lv_label_get_text(hello_world_label);
+    printf("Label text %lu %s \n", strlen(text), text);
+    lv_obj_align(hello_world_label, NULL, LV_ALIGN_IN_TOP_LEFT, 0, 0);
+
+    count_label = lv_label_create(NULL, NULL);
+    lv_obj_align(count_label, NULL, LV_ALIGN_IN_TOP_MID, 0, 0);
+
+    btn1 = lv_btn_create(NULL, NULL); /*Create a button on the currently loaded screen*/
+    lv_obj_set_event_cb(btn1, btn_event_cb); /*Set function to be called when the button is released*/
+    lv_obj_align(btn1, NULL, LV_ALIGN_CENTER, 0, 0); /*Align below the label*/
+
+    /*Create a label on the button*/
+    lv_obj_t *btn_label = lv_label_create(btn1, NULL);
+    lv_label_set_text(btn_label, "Click ++");
+
+    label_count1 = lv_label_create(NULL, NULL);
+    lv_label_set_text(label_count1, "0");
+    lv_obj_align(label_count1, NULL, LV_ALIGN_IN_BOTTOM_MID, 0, 0);
+
+    /* set up a timer */
+    user_timer_t timer;
+    timer = api_timer_create(10, true, false, timer1_update);
+    api_timer_restart(timer, 10);
+}
+
+static void btn_event_cb(lv_obj_t *btn, lv_event_t event)
+{
+    if(event == LV_EVENT_RELEASED) {
+        label_count1_value++;
+        sprintf(label_count1_str, "%d", label_count1_value);
+        lv_label_set_text(label_count1, label_count1_str);
+    }
+}
--- a/samples/gui/wasm-apps/wgl/Makefile
+++ b/samples/gui/wasm-apps/wgl/Makefile
@ -0,0 +1,39 @@
+# Copyright (C) 2019 Intel Corporation.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+CC = emcc
+APP_DIR = ${shell pwd}
+IWASM_DIR=../../../../core/iwasm
+CFLAGS += -O3 \
+	  -Wno-int-conversion \
+	  -DLV_CONF_INCLUDE_SIMPLE \
+	  -I$(APP_DIR)/src/ \
+	  -I$(IWASM_DIR)/lib/app-libs/base/ \
+	  -I$(IWASM_DIR)/lib/native-interface/ \
+	  -I$(IWASM_DIR)/lib/app-libs/extension/sensor \
+	  -I$(IWASM_DIR)/lib/app-libs/extension/gui \
+	  -I$(IWASM_DIR)/lib/app-libs/extension/connection
+
+SRCS += $(APP_DIR)/src/main.c
+
+# For app size consideration, not all but necessary app libs are included
+SRCS += $(IWASM_DIR)/lib/app-libs/base/timer.c
+SRCS += $(IWASM_DIR)/lib/app-libs/extension/gui/src/*.c
+
+all: 
+	@$(CC) $(CFLAGS) $(SRCS) \
+    -s WASM=1 -s SIDE_MODULE=1 -s ASSERTIONS=1 -s STACK_OVERFLOW_CHECK=2 \
+    -s TOTAL_MEMORY=65536 -s TOTAL_STACK=2048\
+    -s "EXPORTED_FUNCTIONS=['_on_init', '_on_timer_callback', '_on_widget_event']" \
+    -o ui_app.wasm
--- a/samples/gui/wasm-apps/wgl/src/main.c
+++ b/samples/gui/wasm-apps/wgl/src/main.c
@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2019 Intel Corporation.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdlib.h>
+#include <unistd.h>
+#include "wasm_app.h"
+
+static void btn_event_cb(wgl_obj_t btn, wgl_event_t event);
+
+uint32_t count = 0;
+char count_str[11] = { 0 };
+wgl_obj_t hello_world_label;
+wgl_obj_t count_label;
+wgl_obj_t btn1;
+wgl_obj_t label_count1;
+int label_count1_value = 0;
+char label_count1_str[11] = { 0 };
+
+void timer1_update(user_timer_t timer1)
+{
+    if ((count % 100) == 0) {
+        sprintf(count_str, "%d", count / 100);
+        wgl_label_set_text(count_label, count_str);
+    }
+    ++count;
+}
+
+void on_init()
+{
+    hello_world_label = wgl_label_create((wgl_obj_t)NULL, (wgl_obj_t)NULL);
+    wgl_label_set_text(hello_world_label, "Hello world!");
+    wgl_obj_align(hello_world_label, (wgl_obj_t)NULL, WGL_ALIGN_IN_TOP_LEFT, 0, 0);
+
+    count_label = wgl_label_create((wgl_obj_t)NULL, (wgl_obj_t)NULL);
+    wgl_obj_align(count_label, (wgl_obj_t)NULL, WGL_ALIGN_IN_TOP_MID, 0, 0);
+
+    btn1 = wgl_btn_create((wgl_obj_t)NULL, (wgl_obj_t)NULL); /*Create a button on the currently loaded screen*/
+    wgl_obj_set_event_cb(btn1, btn_event_cb); /*Set function to be called when the button is released*/
+    wgl_obj_align(btn1, (wgl_obj_t)NULL, WGL_ALIGN_CENTER, 0, 0); /*Align below the label*/
+
+    /*Create a label on the button*/
+    wgl_obj_t btn_label = wgl_label_create(btn1, (wgl_obj_t)NULL);
+    wgl_label_set_text(btn_label, "Click ++");
+
+    label_count1 = wgl_label_create((wgl_obj_t)NULL, (wgl_obj_t)NULL);
+    wgl_label_set_text(label_count1, "0");
+    wgl_obj_align(label_count1, (wgl_obj_t)NULL, WGL_ALIGN_IN_BOTTOM_MID, 0, 0);
+
+    /* set up a timer */
+    user_timer_t timer;
+    timer = api_timer_create(10, true, false, timer1_update);
+    api_timer_restart(timer, 10);
+}
+
+static void btn_event_cb(wgl_obj_t btn, wgl_event_t event)
+{
+    if(event == WGL_EVENT_RELEASED) {
+        label_count1_value++;
+        sprintf(label_count1_str, "%d", label_count1_value);
+        wgl_label_set_text(label_count1, label_count1_str);
+
+        //wgl_cont_set_fit4(btn, WGL_FIT_FLOOD, WGL_FIT_FLOOD, WGL_FIT_FLOOD, WGL_FIT_FLOOD);
+        //wgl_obj_clean(btn);
+    }
+}