diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/video.h | 3 | ||||
| -rw-r--r-- | include/video_console.h | 8 |
2 files changed, 10 insertions, 1 deletions
diff --git a/include/video.h b/include/video.h index fd19723b1d2..c7afe22d823 100644 --- a/include/video.h +++ b/include/video.h @@ -78,7 +78,8 @@ enum video_format { * * @xsize: Number of pixel columns (e.g. 1366) * @ysize: Number of pixels rows (e.g.. 768) - * @rot: Display rotation (0=none, 1=90 degrees clockwise, etc.) + * @rot: Display rotation (0=none, 1=90 degrees clockwise, etc.). THis + * does not affect @xsize and @ysize * @bpix: Encoded bits per pixel (enum video_log2_bpp) * @format: Pixel format (enum video_format) * @vidconsole_drv_name: Driver to use for the text console, NULL to diff --git a/include/video_console.h b/include/video_console.h index 8b5928dc5eb..723d2315606 100644 --- a/include/video_console.h +++ b/include/video_console.h @@ -27,6 +27,14 @@ enum { * Drivers must set up @rows, @cols, @x_charsize, @y_charsize in their probe() * method. Drivers may set up @xstart_frac if desired. * + * Note that these values relate to the rotated console, so that an 80x25 + * console which is rotated 90 degrees will have rows=80 and cols=25 + * + * The xcur_frac and ycur values refer to the unrotated coordinates, that is + * xcur_frac always advances with each character, even if its limit might be + * vid_priv->ysize instead of vid_priv->xsize if the console is rotated 90 or + * 270 degrees. + * * @sdev: stdio device, acting as an output sink * @xcur_frac: Current X position, in fractional units (VID_TO_POS(x)) * @ycur: Current Y position in pixels (0=top) |