Image (gfx_img)

Types

gfx_color_format_t

typedef enum {
    GFX_COLOR_FORMAT_RGB565   = 0x04,  /**< RGB565 format without alpha channel */
    GFX_COLOR_FORMAT_RGB565A8 = 0x0A,  /**< RGB565 format with separate alpha channel */
} gfx_color_format_t;

gfx_image_header_t

typedef struct {
    uint32_t magic: 8;          /**< Magic number. Must be GFX_IMAGE_HEADER_MAGIC */
    uint32_t cf : 8;            /**< Color format: See `gfx_color_format_t` */
    uint32_t flags: 16;         /**< Image flags */
    uint32_t w: 16;             /**< Width of the image */
    uint32_t h: 16;             /**< Height of the image */
    uint32_t stride: 16;        /**< Number of bytes in a row */
    uint32_t reserved: 16;      /**< Reserved for future use */
} gfx_image_header_t;

gfx_image_dsc_t

typedef struct {
    gfx_image_header_t header;   /**< A header describing the basics of the image */
    uint32_t data_size;         /**< Size of the image in bytes */
    const uint8_t *data;        /**< Pointer to the data of the image */
    const void *reserved;       /**< Reserved field for future use */
    const void *reserved_2;     /**< Reserved field for future use */
} gfx_image_dsc_t;

Functions

gfx_img_set_src()

esp_err_t gfx_img_set_src(gfx_obj_t *obj, void *src);