hi3531的hifb显示1080p60Hz 分类： HI3531 arm-linux-Ubuntu 2014-03-22 10:43 1061人阅读 评论(2) 收藏

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <unistd.h>

#include <pthread.h>

#include <signal.h>

#include <sys/types.h>

#include <sys/stat.h>

#include <fcntl.h>

#include <sys/ioctl.h>

#include <linux/fb.h>

#include <sys/mman.h> //mmap

#include "hifb.h"

#include "sample_comm.h"

#define IMAGE_WIDTH 1920

#define IMAGE_HEIGHT 1080

#define IMAGE_SIZE (1920*1080*3)

#define IMAGE_NUM 14

#define IMAGE_PATH "./res/%d.bits"

struct fb_bitfield a16 = {15, 1, 0}, a32 = {24, 8, 0};

struct fb_bitfield r16 = {10, 5, 0}, r32 = {16, 8, 0};

struct fb_bitfield g16 = {5, 5, 0}, g32 = {8, 8, 0};

struct fb_bitfield b16 = {0, 5, 0}, b32 = {0, 8, 0};

HIFB_ALPHA_S stAlpha;

HIFB_COLORKEY_S stColorKey;

FILE *fp1,*fp2,*fp3;

char bmp_buf[1920*1080*3*4];

int main()

{

int fd;

int i;

struct fb_fix_screeninfo fix;

struct fb_var_screeninfo var;

unsigned char *pShowScreen;

unsigned char *pHideScreen;

HIFB_POINT_S stPoint = {0, 0};

FILE *fp;

VO_PUB_ATTR_S stPubAttr = {0};

char image_name[128];

/*0. open VO device 0 */

/* …… initialize the attributes for stPubAttr */

HI_MPI_VO_SetPubAttr(0, &stPubAttr);

HI_MPI_VO_Enable(0);

/*1. open Framebuffer device overlay 0*/

fd = open("/dev/fb0", O_RDWR);

if(fd < 0)

{

printf("open fb0 failed!\n");

return -1;

}

HI_BOOL bShow = HI_FALSE;

/*2. set the screen original position*/

if (ioctl(fd, FBIOPUT_SCREEN_ORIGIN_HIFB, &stPoint) < 0)

{

printf("set screen original show position failed!\n");

return -1;

}

/*3. get the variable screen info*/

if (ioctl(fd, FBIOGET_VSCREENINFO, &var) < 0)

{

printf("Get variable screen info failed!\n");

close(fd);

return -1;

}

/*4. modify the variable screen info

the screen size: IMAGE_WIDTH*IMAGE_HEIGHT

the virtual screen size: IMAGE_WIDTH*(IMAGE_HEIGHT*2)

the pixel format: ARGB1555

*/

printf("%d,%d,%d,%d,%d,%d,%d\n", var.xres_virtual,var.yres_virtual,var.xres,var.yres,var.xoffset,var.yoffset,var.bits_per_pixel);

var.xres = var.xres_virtual = IMAGE_WIDTH;

var.yres = IMAGE_HEIGHT;

var.yres_virtual = IMAGE_HEIGHT*2;

var.bits_per_pixel = 32;

var.xoffset = 0;

var.yoffset = 0;

var.red = r32;

var.green = g32;

var.blue = b32;

var.transp = a32;

/*5. set the variable screeninfo*/

if (ioctl(fd, FBIOPUT_VSCREENINFO, &var) < 0)

{

printf("Put variable screen info failed!\n");

close(fd);

return -1;

}

printf("%d,%d,%d,%d,%d,%d,%d\n", var.xres_virtual,var.yres_virtual,var.xres,var.yres,var.xoffset,var.yoffset,var.bits_per_pixel);

/*6. get the fix screen info*/

if (ioctl(fd, FBIOGET_FSCREENINFO, &fix) < 0)

{

printf("Get fix screen info failed!\n");

close(fd);

return -1;

}

/*7. map the physical video memory for user use*/

pShowScreen = mmap(NULL, fix.smem_len, PROT_READ|PROT_WRITE,MAP_SHARED, fd, 0);

//pHideScreen = pShowScreen + (1920*1080*3;

memset(pShowScreen, 0, 1920*1080*8);

printf("fix.smem_len: %d\n", fix.smem_len);

/*8. load the bitmaps from file to hide screen and set pan display the

hide screen*/

unsigned int h,w,u32Height = 1080;

unsigned int u32Width = 1920;

bShow = HI_TRUE;

if (ioctl(fd, FBIOPUT_SHOW_HIFB, &bShow) < 0)

{

printf("FBIOPUT_SHOW_HIFB failed!\n");

close(fd);

return -1;

}

fp1 = fopen("1080P1.bmp", "rb");

if(fp1==NULL) printf("fp1 not open\n");

fread(bmp_buf, 54, 1, fp1);

fread(bmp_buf, u32Width*u32Height*3, 1, fp1);

fclose(fp1);

fp2 = fopen("2.bmp", "rb");

if(fp2==NULL) printf("fp1 not open\n");

fread(bmp_buf+u32Width*u32Height*3, 54, 1, fp2);

fread(bmp_buf+u32Width*u32Height*3, u32Width*u32Height*3, 1, fp2);

fclose(fp2);

fp3 = fopen("3.bmp", "rb");

if(fp3==NULL) printf("fp1 not open\n");

fread(bmp_buf+u32Width*u32Height*6, 54, 1, fp3);

fread(bmp_buf+u32Width*u32Height*6, u32Width*u32Height*3, 1, fp3);

fclose(fp3);

printf("ok open file\n");

int index=0;

for( index=0;index<100;index++)

{

////////////////////////////////////////////////////////////////////////////////////

for(h=0;h<u32Height;h++)

{

for(w=0;w<u32Width;w++)

{

*(unsigned char *)(pShowScreen+(1-index%2)*u32Width*u32Height*4+h*u32Width*4+w*4+0) = bmp_buf[(u32Height-1-h)*u32Width*3+w*3+0+(index%3)*u32Width*u32Height*3]; //b

*(unsigned char *)(pShowScreen+(1-index%2)*u32Width*u32Height*4+h*u32Width*4+w*4+1) = bmp_buf[(u32Height-1-h)*u32Width*3+w*3+1+(index%3)*u32Width*u32Height*3]; //g

*(unsigned char *)(pShowScreen+(1-index%2)*u32Width*u32Height*4+h*u32Width*4+w*4+2) = bmp_buf[(u32Height-1-h)*u32Width*3+w*3+2+(index%3)*u32Width*u32Height*3]; //r

*(unsigned char *)(pShowScreen+(1-index%2)*u32Width*u32Height*4+h*u32Width*4+w*4+3) = 0xff; //a

}

}

////////////////////////////////////////////////////////////////////////////////////

if(index%2==0)

{

var.yoffset = u32Height;

}

else

{

var.yoffset = 0;

}

if (ioctl(fd, FBIOPAN_DISPLAY, &var) < 0)

{

printf("FBIOPAN_DISPLAY failed!\n");

close(fd);

return -1;

}

sleep(3);

}

printf("Enter to quit!\n");

getchar();

/*9. close the devices*/

close(fd);

HI_MPI_VO_Disable(0);

return 0;

}