diff options
| author | Simon Glass <sjg@chromium.org> | 2021-11-19 13:23:45 -0700 |
|---|---|---|
| committer | Anatolij Gustschin <agust@denx.de> | 2021-12-26 23:02:19 +0100 |
| commit | 0fe5e9481e8ad39393523a23ebb090a249da18b7 (patch) | |
| tree | 4841fc25d1ba69ba86858840bfad0eb53d7b5cae /drivers | |
| parent | bc0abd80b3c2d395a0245d4e1ce4f8f445f79cde (diff) | |
| download | u-boot-0fe5e9481e8ad39393523a23ebb090a249da18b7.zip u-boot-0fe5e9481e8ad39393523a23ebb090a249da18b7.tar.gz u-boot-0fe5e9481e8ad39393523a23ebb090a249da18b7.tar.bz2 | |
sandbox: video: Support 8bpp depth
At present sandbox only supports 16 and 32bpp depths, since those are the
easy ones with SDL.
We can support other depths by manually converting the pixel formats. Add
support for this, to enable an 8ppp (monochrome) format.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/sandbox_sdl.c | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/drivers/video/sandbox_sdl.c b/drivers/video/sandbox_sdl.c index 5956b59..32739de 100644 --- a/drivers/video/sandbox_sdl.c +++ b/drivers/video/sandbox_sdl.c @@ -48,22 +48,33 @@ static int sandbox_sdl_probe(struct udevice *dev) return 0; } -static int sandbox_sdl_bind(struct udevice *dev) +static void set_bpp(struct udevice *dev, enum video_log2_bpp l2bpp) { struct video_uc_plat *uc_plat = dev_get_uclass_plat(dev); struct sandbox_sdl_plat *plat = dev_get_plat(dev); - int ret = 0; - plat->xres = dev_read_u32_default(dev, "xres", LCD_MAX_WIDTH); - plat->yres = dev_read_u32_default(dev, "yres", LCD_MAX_HEIGHT); - plat->bpix = dev_read_u32_default(dev, "log2-depth", VIDEO_BPP16); - plat->rot = dev_read_u32_default(dev, "rotate", 0); + plat->bpix = l2bpp; + uc_plat->size = plat->xres * plat->yres * (1 << plat->bpix) / 8; /* Allow space for two buffers, the lower one being the copy buffer */ log_debug("Frame buffer size %x\n", uc_plat->size); if (IS_ENABLED(CONFIG_VIDEO_COPY)) uc_plat->size *= 2; +} + +static int sandbox_sdl_bind(struct udevice *dev) +{ + struct sandbox_sdl_plat *plat = dev_get_plat(dev); + enum video_log2_bpp l2bpp; + int ret = 0; + + plat->xres = dev_read_u32_default(dev, "xres", LCD_MAX_WIDTH); + plat->yres = dev_read_u32_default(dev, "yres", LCD_MAX_HEIGHT); + l2bpp = dev_read_u32_default(dev, "log2-depth", VIDEO_BPP16); + plat->rot = dev_read_u32_default(dev, "rotate", 0); + + set_bpp(dev, l2bpp); return ret; } |