png_t
gfx_fb_putimage(png_t *png, uint32_t ux1, uint32_t uy1, uint32_t ux2,
int gfx_fb_putimage(png_t *, uint32_t, uint32_t, uint32_t, uint32_t, uint32_t);
gfx_fb_putimage(png_t *png, uint32_t ux1, uint32_t uy1, uint32_t ux2,
int gfx_fb_putimage(png_t *, uint32_t, uint32_t, uint32_t, uint32_t, uint32_t);
png_t png;
png_t png;
png_read_ihdr(png_t *png)
png_print_info(png_t *png)
png_open(png_t *png, const char *filename)
png_close(png_t *png)
png_init_inflate(png_t *png)
png_end_inflate(png_t *png)
png_inflate(png_t *png, uint8_t *data, int len)
file_read(png_t *png, void *out, size_t size, size_t numel)
png_read_idat(png_t *png, unsigned length)
png_process_chunk(png_t *png)
png_unfilter(png_t *png, uint8_t *data)
file_read_ul(png_t *png, unsigned *out)
png_get_data(png_t *png, uint8_t *data)
png_get_bpp(png_t *png)
int png_open(png_t *png, const char *filename);
void png_print_info(png_t *png);
int png_get_data(png_t *png, uint8_t *data);
int png_close(png_t *png);