chore(libs/png): rename lv_png to lv_lodepng (#4574)

Signed-off-by: pengyiqiang <pengyiqiang@xiaomi.com>
Co-authored-by: pengyiqiang <pengyiqiang@xiaomi.com>

examples/libs/lodepng/img_wink_png.c

@@ -1,5 +1,5 @@
 #include "../../../lvgl.h"
-#if LV_USE_PNG && LV_BUILD_EXAMPLES
+#if LV_USE_LODEPNG && LV_BUILD_EXAMPLES
 
 
 #ifndef LV_ATTRIBUTE_MEM_ALIGN
@@ -345,4 +345,4 @@ const lv_image_dsc_t img_wink_png = {
     .data = img_wink_png_map,
 };
 
-#endif /*LV_USE_PNG && LV_BUILD_EXAMPLES*/
+#endif /*LV_USE_LODEPNG && LV_BUILD_EXAMPLES*/

examples/libs/lodepng/index.rst

@@ -1,6 +1,6 @@
 Open a PNG image from file and variable
 ---------------------------------------
 
-.. lv_example:: libs/png/lv_example_png_1
+.. lv_example:: libs/lodepng/lv_example_png_1
   :language: c
 

examples/libs/lodepng/lv_example_lodepng.h

@@ -1,5 +1,5 @@
 /**
- * @file lv_example_png.h
+ * @file lv_example_lodepng.h
  *
  */
 
@@ -25,7 +25,7 @@ extern "C" {
 /**********************
  * GLOBAL PROTOTYPES
  **********************/
-void lv_example_png_1(void);
+void lv_example_lodepng_1(void);
 
 /**********************
  *      MACROS

examples/libs/lodepng/lv_example_lodepng_1.c

@@ -1,10 +1,10 @@
 #include "../../lv_examples.h"
-#if LV_USE_PNG && LV_USE_IMG && LV_BUILD_EXAMPLES
+#if LV_USE_LODEPNG && LV_USE_IMG && LV_BUILD_EXAMPLES
 
 /**
  * Open a PNG image from a file and a variable
  */
-void lv_example_png_1(void)
+void lv_example_lodepng_1(void)
 {
     LV_IMAGE_DECLARE(img_wink_png);
     lv_obj_t * img;
@@ -16,7 +16,7 @@ void lv_example_png_1(void)
     img = lv_image_create(lv_scr_act());
     /* Assuming a File system is attached to letter 'A'
      * E.g. set LV_USE_FS_STDIO 'A' in lv_conf.h */
-    lv_image_set_src(img, "A:lvgl/examples/libs/png/wink.png");
+    lv_image_set_src(img, "A:lvgl/examples/libs/lodepng/wink.png");
     lv_obj_align(img, LV_ALIGN_RIGHT_MID, -20, 0);
 }
 

examples/libs/lv_example_libs.h

@@ -18,7 +18,7 @@ extern "C" {
 #include "ffmpeg/lv_example_ffmpeg.h"
 #include "freetype/lv_example_freetype.h"
 #include "gif/lv_example_gif.h"
-#include "png/lv_example_png.h"
+#include "lodepng/lv_example_lodepng.h"
 #include "qrcode/lv_example_qrcode.h"
 #include "rlottie/lv_example_rlottie.h"
 #include "jpg/lv_example_jpg.h"

examples/others/imgfont/lv_example_imgfont_1.c

@@ -22,7 +22,7 @@ static const void * get_imgfont_path(const lv_font_t * font, uint32_t unicode, u
     else if(unicode == 0xF600) {
 #if LV_USE_FFMPEG
         return "lvgl/examples/assets/emoji/F600.png";
-#elif LV_USE_PNG
+#elif LV_USE_LODEPNG
         return "A:lvgl/examples/assets/emoji/F600.png";
 #endif
     }