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fb: select the FB_NO_OVERLAY because it will be showed on the main surface

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Signed-off-by: jianglianfang <jianglianfang@xiaomi.com>
This commit is contained in:
jianglianfang 2024-04-02 19:34:00 +08:00 committed by Xiang Xiao
parent 009fc1a28a
commit 2305255373
1 changed files with 47 additions and 25 deletions
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72
examples/fb/fb_main.c
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@ -151,6 +151,41 @@ static void pan_display(FAR struct fb_state_s *state)
}
}
/****************************************************************************
* fbdev_get_pinfo
****************************************************************************/
static int fbdev_get_pinfo(int fd, FAR struct fb_planeinfo_s *pinfo)
{
if (ioctl(fd, FBIOGET_PLANEINFO, (unsigned long)((uintptr_t)pinfo)) < 0)
{
int errcode = errno;
fprintf(stderr, "ERROR: ioctl(FBIOGET_PLANEINFO) failed: %d\n",
errcode);
return EXIT_FAILURE;
}
printf("PlaneInfo (plane %d):\n", pinfo->display);
printf(" fbmem: %p\n", pinfo->fbmem);
printf(" fblen: %zu\n", pinfo->fblen);
printf(" stride: %u\n", pinfo->stride);
printf(" display: %u\n", pinfo->display);
printf(" bpp: %u\n", pinfo->bpp);
/* Only these pixel depths are supported. viinfo.fmt is ignored, only
* certain color formats are supported.
*/
if (pinfo->bpp != 32 && pinfo->bpp != 16 &&
pinfo->bpp != 8 && pinfo->bpp != 1)
{
fprintf(stderr, "ERROR: bpp=%u not supported\n", pinfo->bpp);
return EXIT_FAILURE;
}
return 0;
}
/****************************************************************************
* fb_init_mem2
****************************************************************************/
@ -164,13 +199,8 @@ static int fb_init_mem2(FAR struct fb_state_s *state)
memset(&pinfo, 0, sizeof(pinfo));
pinfo.display = state->pinfo.display + 1;
ret = ioctl(state->fd, FBIOGET_PLANEINFO,
&pinfo);
if (ret < 0)
if ((ret = fbdev_get_pinfo(state->fd, &pinfo)) < 0)
{
int errcode = errno;
fprintf(stderr, "ERROR: ioctl(FBIOGET_PLANEINFO) failed: %d\n",
errcode);
return EXIT_FAILURE;
}
@ -192,7 +222,7 @@ static int fb_init_mem2(FAR struct fb_state_s *state)
{
fprintf(stderr, "ERROR: It is detected that buf_offset(%" PRIuPTR ") "
"and stride(%d) are not divisible, please ensure "
"that the driver handles the address offset by itself.",
"that the driver handles the address offset by itself.\n",
buf_offset, state->pinfo.stride);
}
@ -204,6 +234,8 @@ static int fb_init_mem2(FAR struct fb_state_s *state)
state->mem2_yoffset = state->vinfo.yres;
state->fbmem2 = pinfo.fbmem + state->mem2_yoffset * pinfo.stride;
printf("Use consecutive fbmem2 = %p, yoffset = %" PRIu32"\n",
state->fbmem2, state->mem2_yoffset);
}
else
{
@ -211,6 +243,8 @@ static int fb_init_mem2(FAR struct fb_state_s *state)
state->mem2_yoffset = buf_offset / state->pinfo.stride;
state->fbmem2 = pinfo.fbmem;
printf("Use non-consecutive fbmem2 = %p, yoffset = %" PRIu32"\n",
state->fbmem2, state->mem2_yoffset);
}
return 0;
@ -510,7 +544,7 @@ int main(int argc, FAR char *argv[])
printf("OverlayInfo (overlay 0):\n");
printf(" fbmem: %p\n", state.oinfo.fbmem);
printf(" fblen: %lu\n", (unsigned long)state.oinfo.fblen);
printf(" fblen: %zu\n", state.oinfo.fblen);
printf(" stride: %u\n", state.oinfo.stride);
printf(" overlay: %u\n", state.oinfo.overlay);
printf(" bpp: %u\n", state.oinfo.bpp);
@ -524,34 +558,22 @@ int main(int argc, FAR char *argv[])
state.oinfo.sarea.w, state.oinfo.sarea.h);
printf(" accl: %" PRIu32 "\n", state.oinfo.accl);
#endif
/* select default framebuffer layer */
ret = ioctl(state.fd, FBIOGET_PLANEINFO,
(unsigned long)((uintptr_t)&state.pinfo));
ret = ioctl(state.fd, FBIO_SELECT_OVERLAY, FB_NO_OVERLAY);
if (ret < 0)
{
int errcode = errno;
fprintf(stderr, "ERROR: ioctl(FBIOGET_PLANEINFO) failed: %d\n",
fprintf(stderr, "ERROR: ioctl(FBIO_SELECT_OVERLAY) failed: %d\n",
errcode);
close(state.fd);
return EXIT_FAILURE;
}
printf("PlaneInfo (plane 0):\n");
printf(" fbmem: %p\n", state.pinfo.fbmem);
printf(" fblen: %lu\n", (unsigned long)state.pinfo.fblen);
printf(" stride: %u\n", state.pinfo.stride);
printf(" display: %u\n", state.pinfo.display);
printf(" bpp: %u\n", state.pinfo.bpp);
#endif
/* Only these pixel depths are supported. viinfo.fmt is ignored, only
* certain color formats are supported.
*/
if (state.pinfo.bpp != 32 && state.pinfo.bpp != 16 &&
state.pinfo.bpp != 8 && state.pinfo.bpp != 1)
if ((ret = fbdev_get_pinfo(state.fd, &state.pinfo)) < 0)
{
fprintf(stderr, "ERROR: bpp=%u not supported\n", state.pinfo.bpp);
close(state.fd);
return EXIT_FAILURE;
}