Rename some functions that start with underscore.

core/src/fxcodec/lbmp/fx_bmp.h

Index: core/src/fxcodec/lbmp/fx_bmp.h
diff --git a/core/src/fxcodec/lbmp/fx_bmp.h b/core/src/fxcodec/lbmp/fx_bmp.h
index 063b1bd757882792734cdaddb1580e3b830005e4..24c94cabbe809373b8944b8bdb673a08cef784ea 100644
--- a/core/src/fxcodec/lbmp/fx_bmp.h
+++ b/core/src/fxcodec/lbmp/fx_bmp.h
@@ -11,7 +11,6 @@
 
 #include "core/include/fxcrt/fx_basic.h"
 
-#define BMP_SUPPORT_BITFIELD
 #define BMP_WIDTHBYTES(width, bitCount) ((width * bitCount) + 31) / 32 * 4
 #define BMP_PAL_ENCODE(a, r, g, b) \
   (((FX_DWORD)(a) << 24) | ((r) << 16) | ((g) << 8) | (b))
@@ -70,8 +69,7 @@ typedef bmp_decompress_struct_p* bmp_decompress_struct_pp;
 struct tag_bmp_decompress_struct {
   jmp_buf jmpbuf;
   FX_CHAR* err_ptr;
-  void (*_bmp_error_fn)(bmp_decompress_struct_p gif_ptr,
-                        const FX_CHAR* err_msg);
+  void (*bmp_error_fn)(bmp_decompress_struct_p gif_ptr, const FX_CHAR* err_msg);
 
   void* context_ptr;
 
@@ -97,39 +95,37 @@ struct tag_bmp_decompress_struct {
   int32_t col_num;
   int32_t dpi_x;
   int32_t dpi_y;
-#ifdef BMP_SUPPORT_BITFIELD
   FX_DWORD mask_red;
   FX_DWORD mask_green;
   FX_DWORD mask_blue;
-#endif
 
-  FX_BOOL (*_bmp_get_data_position_fn)(bmp_decompress_struct_p bmp_ptr,
+  FX_BOOL (*bmp_get_data_position_fn)(bmp_decompress_struct_p bmp_ptr,
                                        FX_DWORD cur_pos);
-  void (*_bmp_get_row_fn)(bmp_decompress_struct_p bmp_ptr,
-                          int32_t row_num,
-                          uint8_t* row_buf);
+  void (*bmp_get_row_fn)(bmp_decompress_struct_p bmp_ptr,
+                         int32_t row_num,
+                         uint8_t* row_buf);
   uint8_t* next_in;
   FX_DWORD avail_in;
   FX_DWORD skip_size;
   int32_t decode_status;
 };
-void _bmp_error(bmp_decompress_struct_p bmp_ptr, const FX_CHAR* err_msg);
-bmp_decompress_struct_p _bmp_create_decompress();
-void _bmp_destroy_decompress(bmp_decompress_struct_pp bmp_ptr_ptr);
-int32_t _bmp_read_header(bmp_decompress_struct_p bmp_ptr);
-int32_t _bmp_decode_image(bmp_decompress_struct_p bmp_ptr);
-int32_t _bmp_decode_rgb(bmp_decompress_struct_p bmp_ptr);
-int32_t _bmp_decode_rle8(bmp_decompress_struct_p bmp_ptr);
-int32_t _bmp_decode_rle4(bmp_decompress_struct_p bmp_ptr);
-uint8_t* _bmp_read_data(bmp_decompress_struct_p bmp_ptr,
-                        uint8_t** des_buf_pp,
-                        FX_DWORD data_size);
-void _bmp_save_decoding_status(bmp_decompress_struct_p bmp_ptr, int32_t status);
-void _bmp_input_buffer(bmp_decompress_struct_p bmp_ptr,
-                       uint8_t* src_buf,
-                       FX_DWORD src_size);
-FX_DWORD _bmp_get_avail_input(bmp_decompress_struct_p bmp_ptr,
-                              uint8_t** avial_buf_ptr);
+void bmp_error(bmp_decompress_struct_p bmp_ptr, const FX_CHAR* err_msg);
+bmp_decompress_struct_p bmp_create_decompress();
+void bmp_destroy_decompress(bmp_decompress_struct_pp bmp_ptr_ptr);
+int32_t bmp_read_header(bmp_decompress_struct_p bmp_ptr);
+int32_t bmp_decode_image(bmp_decompress_struct_p bmp_ptr);
+int32_t bmp_decode_rgb(bmp_decompress_struct_p bmp_ptr);
+int32_t bmp_decode_rle8(bmp_decompress_struct_p bmp_ptr);
+int32_t bmp_decode_rle4(bmp_decompress_struct_p bmp_ptr);
+uint8_t* bmp_read_data(bmp_decompress_struct_p bmp_ptr,
+                       uint8_t** des_buf_pp,
+                       FX_DWORD data_size);
+void bmp_save_decoding_status(bmp_decompress_struct_p bmp_ptr, int32_t status);
+void bmp_input_buffer(bmp_decompress_struct_p bmp_ptr,
+                      uint8_t* src_buf,
+                      FX_DWORD src_size);
+FX_DWORD bmp_get_avail_input(bmp_decompress_struct_p bmp_ptr,
+                             uint8_t** avial_buf_ptr);
 typedef struct tag_bmp_compress_struct bmp_compress_struct;
 typedef bmp_compress_struct* bmp_compress_struct_p;
 typedef bmp_compress_struct_p* bmp_compress_struct_pp;
@@ -144,15 +140,16 @@ struct tag_bmp_compress_struct {
   FX_BOOL src_free;
   FX_DWORD* pal_ptr;
   FX_WORD pal_num;
-#ifdef BMP_SUPPORT_BITFIELD
   uint8_t bit_type;
-#endif
 };
 
-bmp_compress_struct_p _bmp_create_compress();
-void _bmp_destroy_compress(bmp_compress_struct_p bmp_ptr);
-FX_BOOL _bmp_encode_image(bmp_compress_struct_p bmp_ptr,
-                          uint8_t*& dst_buf,
-                          FX_DWORD& dst_size);
+bmp_compress_struct_p bmp_create_compress();
+void bmp_destroy_compress(bmp_compress_struct_p bmp_ptr);
+FX_BOOL bmp_encode_image(bmp_compress_struct_p bmp_ptr,
+                         uint8_t*& dst_buf,
+                         FX_DWORD& dst_size);
+
+FX_WORD GetWord_LSBFirst(uint8_t* p);
+void SetWord_LSBFirst(uint8_t* p, FX_WORD v);
 
 #endif  // CORE_SRC_FXCODEC_LBMP_FX_BMP_H_