C++ (Cpp) ppm_read_magic_number示例

示例#1

文件： ppm_decoder.c 项目： Brandon7357/rockbox

static int read_ppm_init(int fd, struct ppm_info *ppm)
{
    /* Check magic number. */
    ppm->format = ppm_read_magic_number( fd );

    if (ppm->format == PLUGIN_ERROR) return PLUGIN_ERROR;
    switch (ppm->format) {
        case PPM_FORMAT:
        case RPPM_FORMAT:
            return read_ppm_init_rest(fd, ppm);

        default:
            ppm_error( "Bad magic number - not a ppm or rppm file." );
            return PLUGIN_ERROR;
    }
    return PLUGIN_OK;
}

示例#2

文件： ppmviewer.c 项目： CrashSerious/rockbox_psgroove

void read_ppm_init(int fd, 
                   int * const cols, 
                   int * const rows, 
                   int * const maxval, 
                   int * const format)
{
    /* Check magic number. */
    *format = ppm_read_magic_number( fd );
    
    if (*format == PLUGIN_ERROR) return;
    switch (*format) {
        case PPM_FORMAT:
        case RPPM_FORMAT:
            if(read_ppm_init_rest(fd, cols, rows, maxval) == PLUGIN_ERROR) {
                *format = PLUGIN_ERROR;
            }
            break;

        default:
            ppm_error( "Bad magic number - not a ppm or rppm file." );
            *format = PLUGIN_ERROR;
    }
}