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Age	Commit message (Collapse)	Author
2017-04-14	video: Fix crash when scroll screen	[email protected]
	After enabling log printing to lcd, when the screen starts scrolling, system crashes. Log is shown as bellow: "Synchronous Abort" handler, esr 0x96000045 "Synchronous Abort" handler, esr 0x96000045 Checking the source code, we found that the variable "pixels" gets a wrong value: int pixels = VIDEO_FONT_HEIGHT * vid_priv->line_length; "pixels" here means the value of pixels for a character, rather than the bytes for a character. So the variable "pixels" is 4 times bigger than it's exact value, which will cause the memory overflow when the cpu runs the following code: for (i = 0; i < pixels; i++) *dst++ = clr; <<---- Signed-off-by: Eric Gao <[email protected]>
2016-01-30	video: Use fractional units for X coordinates	Simon Glass
	With anti-aliased fonts we need a more fine-grained horizontal position than a single pixel. Characters can be positioned to start part-way through a pixel, with anti-aliasing (greyscale edges) taking care of the visual effect. To cope with this, use fractional units (1/256 pixel) for horizontal positions in the text console. Signed-off-by: Simon Glass <[email protected]> [agust: rebased] Signed-off-by: Anatolij Gustschin <[email protected]>
2016-01-20	dm: video: Add a 'normal' text console driver	Simon Glass
	Most of the time we don't need to rotate the display so a simple font blitting feature is enough for our purposes. Add a simple driver which supports this function. It provides text output on the console using the standard 8x16-pixel font. Signed-off-by: Simon Glass <[email protected]> Acked-by: Anatolij Gustschin <[email protected]>