osd_front.c

来自「sample on embedded linux」· C语言 代码 · 共 97 行

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <time.h>
#include <hi_common_api.h>

HI_S32 OSDFrontService(void)
{
    HI_S32 ret;
    OSD_REGION_HANDLE region0, region1;
    
    OSD_REGION_S RegionParam = 
    {
        .struValidRect = {64, 64, 64, 64},
        .u32Alpha = 80,
        .u32TransparentColor = 0x000000,
        .u32TopLevel = 0,
    };

   /*create region*/
    if((ret = HI_OSD_CreateRegion(OSD_FRONT, 0, &RegionParam, &region0)) < 0)
    {
        return ret;
    }
    /*fill region0 with red color*/
    HI_OSD_FillRegion(region0, 0xff0000);

    RegionParam.struValidRect.x += 64;
    RegionParam.struValidRect.y += 64;
    RegionParam.u32TopLevel = 1;
    RegionParam.u32Alpha = 40;

     /*create region1*/
    if((ret = HI_OSD_CreateRegion(OSD_FRONT, 0, &RegionParam, &region1)) < 0)
    {
        HI_OSD_DeleteRegion(region0);
        return ret;
    }
    /*fill region with green*/
    HI_OSD_FillRegion(region1, 0xff00);
    
    /*stop 2 second*/
    sleep(2);

    /*set region to toplevel*/
    if((ret = HI_OSD_SetRegionTopLevel(region0, 2)) < 0)
    {
        HI_OSD_DeleteRegion(region0);
        HI_OSD_DeleteRegion(region1);
    
        return ret;
    }

    sleep(2);

    if((ret = HI_OSD_SetRegionTopLevel(region1, 3)) < 0)
    {
        HI_OSD_DeleteRegion(region0);
        HI_OSD_DeleteRegion(region1);
  
        return ret;
    }

    sleep(2);

    /*set region to the new position*/
   if((ret = HI_OSD_SetRegionPosition(region0, 144, 144)) < 0)
    {
        HI_OSD_DeleteRegion(region0);
        HI_OSD_DeleteRegion(region1);
    
        return ret;
    }
    
  if((ret = HI_OSD_SetRegionPosition(region1, 200, 200)) < 0)
    {
        HI_OSD_DeleteRegion(region0);
        HI_OSD_DeleteRegion(region1);
    
        return ret;
    }    
    
  sleep(2);
  
    /*delete the region before quit*/    
    HI_OSD_DeleteRegion(region0);
    HI_OSD_DeleteRegion(region1);
  
    return HI_SUCCESS;
}

int main()
{
    OSDFrontService();
    return 0;
}