Description: Code alarm processing

IssueNo: https://gitee.com/openharmony/graphic_ui/issues/I5VWYT
Feature or Bugfix: Bugfix
Binary Source:No
Signed-off-by: youbing54<youbing3@huawei.com>

interfaces/kits/gfx_utils/color.h

@@ -144,7 +144,7 @@ struct Rgba {
     float blue;
     float alpha;
 
-    Rgba() {}
+    Rgba() : red(0), green(0), blue(0), alpha(0) {}
 
     /**
      * @brief Rgba Constructor.

interfaces/kits/gfx_utils/graphic_buffer.h

@@ -48,7 +48,7 @@ namespace OHOS {
  */
 struct BufferInfo {
     Rect rect;
-    int32_t stride;
+    uint32_t stride;
     void* phyAddr;
     void* virAddr;
     uint16_t width;