nbgl_image_utils.h

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#ifndef NBGL_IMAGE_UTILS_H
#define NBGL_IMAGE_UTILS_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
/*********************
 *      INCLUDES
 *********************/
#include "nbgl_types.h"
 
/*********************
 *      DEFINES
 *********************/
#define WIDTH_OFFSET 0
 
#define HEIGHT_OFFSET 2
 
#define BPP_COMPRESS_OFFSET 4
 
#define BUFFER_LEN_OFFSET 5
 
#define BUFFER_OFFSET 8
 
#define IMAGE_FILE_HEADER_SIZE 8
 
/**********************
 *      MACROS
 **********************/
 
#define GET_IMAGE_FILE_WIDTH(image_file) \
    (image_file[WIDTH_OFFSET] | (image_file[WIDTH_OFFSET + 1] << 8))
 
#define GET_IMAGE_FILE_HEIGHT(image_file) \
    (image_file[HEIGHT_OFFSET] | (image_file[HEIGHT_OFFSET + 1] << 8))
 
#define GET_IMAGE_FILE_BPP(image_file) (image_file[BPP_COMPRESS_OFFSET] >> 4)
 
#define GET_IMAGE_FILE_COMPRESSION(image_file) (image_file[BPP_COMPRESS_OFFSET] & 0xF)
 
#define GET_IMAGE_FILE_BUFFER_LEN(image_file)                                 \
    (image_file[BUFFER_LEN_OFFSET] | (image_file[BUFFER_LEN_OFFSET + 1] << 8) \
     | (image_file[BUFFER_LEN_OFFSET + 2] << 16))
 
#define GET_IMAGE_FILE_BUFFER(image_file) (&image_file[BUFFER_OFFSET])
 
#ifdef __cplusplus
} /* extern "C" */
#endif
 
#endif /* NBGL_IMAGE_UTILS_H */