_csl_osdswitchtopingpongbuff.c

来自「TI达芬奇dm644x各硬件模块测试代码」· C语言 代码 · 共 36 行

/** @file _csl_osdSwitchToPingpongBuff.c
 *
 * @brief Switch OSD video window 0 address
 * @date 6th Oct , 2004
 * @author Sandeep Tiwari
 */

#include <csl_osd.h>
#include <_csl_osd_aux.h>

CSL_Status    _CSL_osdSwitchToPingpongBuff(
      /** Pointer to the object that holds reference to the
	*  instance of OSD requested after the call 
	*/
	CSL_OsdHandle hOsd,
	
      /** Pointer to structure containing elements to 
       *  switch the Ping Pong buffer
       */
       CSL_OsdPingBuff *arg ) 

{

    if(CSL_FEXT(hOsd->regs->MISCCTL,OSD_MISCCTL_PPRV) == 0) {

        CSL_FINS(hOsd->regs->MISCCTL,OSD_MISCCTL_PPSW, arg->pingPongBuff == TRUE ? 1: 0);

    } else {

         CSL_FINS(hOsd->regs->MISCCTL,OSD_MISCCTL_PPSW, arg->pingPongBuff == TRUE ? 0: 1);
    }
    return CSL_SOK;
}