[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCHv2] unicore32-softmmu: Add a minimal curses scree
From: |
Andreas Färber |
Subject: |
Re: [Qemu-devel] [PATCHv2] unicore32-softmmu: Add a minimal curses screen support |
Date: |
Wed, 01 Aug 2012 16:23:51 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:14.0) Gecko/20120713 Thunderbird/14.0 |
Am 01.08.2012 05:09, schrieb address@hidden:
> From: Guan Xuetao <address@hidden>
>
> This patch adds a minimal curses screen support for unicore32-softmmu.
> We assume 80*30 screen size to minimize the implementation.
> Two problems are not solved, but they are innocuous.
> 1. curses windows will be blank when switching to monitor screen and back
> 2. backspace is not handled yet
>
> v1->v2: add extra handler for '\r'
>
> Signed-off-by: Zhang Mengchi <address@hidden>
> Signed-off-by: Guan Xuetao <address@hidden>
> ---
> target-unicore32/helper.c | 45
> +++++++++++++++++++++++++++++++++++++++++++--
> 1 files changed, 43 insertions(+), 2 deletions(-)
>
> diff --git a/target-unicore32/helper.c b/target-unicore32/helper.c
> index d6eb758..d21e7df 100644
> --- a/target-unicore32/helper.c
> +++ b/target-unicore32/helper.c
> @@ -13,6 +13,7 @@
> #include "gdbstub.h"
> #include "helper.h"
> #include "host-utils.h"
> +#include "console.h"
>
> #undef DEBUG_UC32
>
> @@ -186,10 +187,50 @@ uint32_t helper_cp0_get(CPUUniCore32State *env,
> uint32_t creg, uint32_t cop)
> return 0;
> }
>
> +#ifdef CONFIG_CURSES
> +/*
> + * FIXME:
> + * 1. curses windows will be blank when switching back
> + * 2. backspace is not handled yet
> + */
> +static void putc_on_screen(unsigned char ch)
> +{
> + static WINDOW *localwin;
> + static int init;
> +
> + if (!init) {
> + /* Assume 80 * 30 screen to minimize the implementation */
> + localwin = newwin(30, 80, 0, 0);
> + scrollok(localwin, TRUE);
> + init = TRUE;
> + }
> +
> + if (isprint(ch)) {
> + wprintw(localwin, "%c", ch);
> + } else {
> + switch (ch) {
> + case '\n':
> + wprintw(localwin, "%c", ch);
> + break;
> + case '\r':
> + /* If '\r' is put before '\n', the curses window will destroy the
> + * last print line. And meanwhile, '\n' implifies '\r' inside. */
> + break;
> + default: /* Not handled, so just print it hex code */
> + wprintw(localwin, "-- 0x%h --", ch);
> + }
> + }
> +
> + wrefresh(localwin);
> +}
> +#else
> +#define putc_on_screen(c) do { } while (0)
> +#endif
> +
> void helper_cp1_putc(target_ulong x)
> {
> - /* TODO: curses display should be added here for screen output. */
> - DPRINTF("%c", x);
> + putc_on_screen((unsigned char)x); /* Output to screen */
> + DPRINTF("%c", x); /* Output to stdout */
> }
> #endif
>
Why is a TCG helper missing with curses directly? Shouldn't that use
QEMU's console infrastructure and leave it to the user whether to use
curses as a backend at runtime?
What is the problem you are trying to solve? If you just need scrolling
support you can already use -curses, -nographic and friends...
Regards,
Andreas
--
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg
- Re: [Qemu-devel] [PATCHv2] unicore32-softmmu: Add a minimal curses screen support,
Andreas Färber <=