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feat(nuttx): add adaptive color format

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Signed-off-by: pengyiqiang <pengyiqiang@xiaomi.com>
This commit is contained in:
pengyiqiang 2024-04-19 20:20:10 +08:00 committed by Neo Xu
parent fb482a1da4
commit 691554ded8
1 changed files with 27 additions and 12 deletions
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39
src/drivers/nuttx/lv_nuttx_fbdev.c
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@ -50,6 +50,7 @@ typedef struct {
**********************/
static void flush_cb(lv_display_t * disp, const lv_area_t * area, uint8_t * color_p);
static lv_color_format_t fb_fmt_to_color_format(int fmt);
static int fbdev_get_pinfo(int fd, struct fb_planeinfo_s * pinfo);
static int fbdev_init_mem2(lv_nuttx_fb_t * dsc);
static void display_refr_timer_cb(lv_timer_t * tmr);
@ -118,6 +119,11 @@ int lv_nuttx_fbdev_set_file(lv_display_t * disp, const char * file)
goto errout;
}
lv_color_format_t color_format = fb_fmt_to_color_format(dsc->vinfo.fmt);
if(color_format == LV_COLOR_FORMAT_UNKNOWN) {
goto errout;
}
dsc->mem = mmap(NULL, dsc->pinfo.fblen, PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_FILE, dsc->fd, 0);
if(dsc->mem == MAP_FAILED) {
@ -130,7 +136,7 @@ int lv_nuttx_fbdev_set_file(lv_display_t * disp, const char * file)
uint32_t h = dsc->vinfo.yres;
uint32_t stride = dsc->pinfo.stride;
uint32_t data_size = h * stride;
lv_draw_buf_init(&dsc->buf1, w, h, LV_COLOR_FORMAT_NATIVE, stride, dsc->mem, data_size);
lv_draw_buf_init(&dsc->buf1, w, h, color_format, stride, dsc->mem, data_size);
/* double buffer mode */
@ -140,7 +146,7 @@ int lv_nuttx_fbdev_set_file(lv_display_t * disp, const char * file)
goto errout;
}
lv_draw_buf_init(&dsc->buf2, w, h, LV_COLOR_FORMAT_NATIVE, stride, dsc->mem2, data_size);
lv_draw_buf_init(&dsc->buf2, w, h, color_format, stride, dsc->mem2, data_size);
}
lv_display_set_draw_buffers(disp, &dsc->buf1, double_buffer ? &dsc->buf2 : NULL);
@ -233,6 +239,25 @@ static void flush_cb(lv_display_t * disp, const lv_area_t * area, uint8_t * colo
lv_display_flush_ready(disp);
}
static lv_color_format_t fb_fmt_to_color_format(int fmt)
{
switch(fmt) {
case FB_FMT_RGB16_565:
return LV_COLOR_FORMAT_RGB565;
case FB_FMT_RGB24:
return LV_COLOR_FORMAT_RGB888;
case FB_FMT_RGB32:
case FB_FMT_RGBA32:
return LV_COLOR_FORMAT_ARGB8888;
default:
break;
}
LV_LOG_ERROR("Unsupported color format: %d", fmt);
return LV_COLOR_FORMAT_UNKNOWN;
}
static int fbdev_get_pinfo(int fd, FAR struct fb_planeinfo_s * pinfo)
{
if(ioctl(fd, FBIOGET_PLANEINFO, (unsigned long)((uintptr_t)pinfo)) < 0) {
@ -247,16 +272,6 @@ static int fbdev_get_pinfo(int fd, FAR struct fb_planeinfo_s * pinfo)
LV_LOG_USER(" display: %u", pinfo->display);
LV_LOG_USER(" bpp: %u", pinfo->bpp);
/* Only these pixel depths are supported. vinfo.fmt is ignored, only
* certain color formats are supported.
*/
if(pinfo->bpp != 32 && pinfo->bpp != 16 &&
pinfo->bpp != 8 && pinfo->bpp != 1) {
LV_LOG_ERROR("bpp = %u not supported", pinfo->bpp);
return -EINVAL;
}
return 0;
}