Rockbox mail archive
Subject: Re: Trimming the lcd api
2011/10/12 Thomas Martitz <kugel_at_rockbox.org>:
> Am 11.10.2011 21:22, schrieb Björn Stenberg:
>> I would like to condense all of our puts variants into one single
>> void lcd_puts(int x, int y, int xcrop, int style,
>> bool scrolled, const char* fmt, ...)
> I agree this number of wrappers is excessive, and a smaller API (and pixel
> based with scrolling, finally) would be great. But perhaps keep 1 or 2 of
> the most simple wrappers (if they're also the most common one) as calling
> functions with a large number of parameters does have a binsize impact (and
> there's a large number of callers). Not to mention the inconvinience for the
> most simple cases.
> void lcd_puts(int x, int y, const char* text);
> void lcd_putsf(int x, int y, const char* fmt, ...);
> void lcd_putsf_ex(int x, int y, int xcrop, int style, bool scrolled, const
> char* fmt, ...);
> Best regards.
It is worh noting that on arm-eabi r0-r3 are used to pass arguments to
called function. Above 4 args things are passed through the stack.
Received on 2011-10-12
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