[U-Boot] [PATCH 1/2] LCD: drawing 32bpp uncompressed bitmap image

[Anatolij Gustschin]

Hi,

On Mon, 23 Apr 2012 10:47:07 +0900
Donghwa Lee <dh09.lee at samsung.com> wrote:

> This patch supports drawing 32bpp uncompressed bitmap image.
> 
> Signed-off-by: Donghwa Lee <dh09.lee at samsung.com>
> Signed-off-by: Kyungmin.park <kyungmin.park at samsung.com>
> ---
>  common/lcd.c |   26 ++++++++++++++++++++++----
>  1 files changed, 22 insertions(+), 4 deletions(-)
> 
> diff --git a/common/lcd.c b/common/lcd.c
> index bf1a6a9..a7b04d2 100644
> --- a/common/lcd.c
> +++ b/common/lcd.c
...
> @@ -739,8 +739,14 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y)
>  		height = panel_info.vl_row - y;
>  
>  	bmap = (uchar *)bmp + le32_to_cpu (bmp->header.data_offset);
> +
> +#ifndef CONFIG_EXYNOS_FB
>  	fb   = (uchar *) (lcd_base +
>  		(y + height - 1) * lcd_line_length + x * bpix / 8);
> +#else
> +	fb = (uchar *) (lcd_base + (y + height) *
> +			(panel_info.vl_col * (bpix / 8)) + x * (bpix / 8));
> +#endif

This ifndef shouldn't be needed. Better pass needed 'y' position
to the lcd_display_bitmap() function.

>  
>  	switch (bmp_bpix) {
>  	case 1: /* pass through */
> @@ -788,9 +794,21 @@ int lcd_display_bitmap(ulong bmp_image, int x, int y)
>  			bmap += (padded_line - width) * 2;
>  			fb   -= (width * 2 + lcd_line_length);
>  		}
> +

Please do not add this empty line here.

>  		break;
>  #endif /* CONFIG_BMP_16BPP */
> -
> +	case 32:
> +		for (i = 0; i < height; ++i) {
> +			for (j = 0; j < width; j++) {
> +				*(fb++) = *(bmap++);
> +				*(fb++) = *(bmap++);
> +				*(fb++) = *(bmap++);
> +				*(fb++) = *(bmap++);
> +			}
> +			fb  -= ((panel_info.vl_col *
> +				(bpix / 8)) + width * (bpix / 8));

you can use lcd_line_lenght instead of (panel_info.vl_col * (bpix / 8))
here, i think.

> +		}
> +		break;

Please surround by
#ifdef CONFIG_BMP_32BPP
...
#endif

so that boards not using 32bpp do not suffer from code size
increase.

Thanks,
Anatolij