sandbox: add sdl video support

This will allow speed up the dev on framebuffer.

By default the resolution is VGA but this can be changed via cmdline.

We use a pthread to Flip the screen every 100ms as we can not detect when
barebox update it as barebox simpliy write in a buffer.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 23 insertions, 2 deletions

diff --git a/arch/sandbox/os/common.c b/arch/sandbox/os/common.c
index d2aea383fb..a73f400676 100644
--- a/arch/sandbox/os/common.c
+++ b/arch/sandbox/os/common.c
@@ -52,6 +52,9 @@
 #include <mach/linux.h>
 #include <mach/hostfile.h>
 
+int sdl_xres;
+int sdl_yres;
+
 static struct termios term_orig, term_vi;
 static char erase_char;	/* the users erase character */
 
@@ -278,10 +281,12 @@ static struct option long_options[] = {
 	{"env",    1, 0, 'e'},
 	{"stdout", 1, 0, 'O'},
 	{"stdin",  1, 0, 'I'},
+	{"xres",  1, 0, 'x'},
+	{"yres",  1, 0, 'y'},
 	{0, 0, 0, 0},
 };
 
-static const char optstring[] = "hm:i:e:O:I:";
+static const char optstring[] = "hm:i:e:O:I:x:y:";
 
 int main(int argc, char *argv[])
 {
@@ -333,6 +338,12 @@ int main(int argc, char *argv[])
 
 			barebox_register_console("cin", fd, -1);
 			break;
+		case 'x':
+			sdl_xres = strtoul(optarg, NULL, 0);
+			break;
+		case 'y':
+			sdl_yres = strtoul(optarg, NULL, 0);
+			break;
 		default:
 			exit(1);
 		}
@@ -415,7 +426,9 @@ static void print_usage(const char *prgname)
 "  -O, --stdout=<file>  Register a file as a console capable of doing stdout.\n"
 "                       <file> can be a regular file or a FIFO.\n"
 "  -I, --stdin=<file>   Register a file as a console capable of doing stdin.\n"
-"                       <file> can be a regular file or a FIFO.\n",
+"                       <file> can be a regular file or a FIFO.\n"
+"  -x, --xres=<res>     SDL width.\n"
+"  -y, --yres=<res>     SDL height.\n",
 	prgname
 	);
 }
@@ -455,6 +468,14 @@ static void print_usage(const char *prgname)
  * Register \<file\> as a console capable of doing stdin. \<file\> can be a regular
  * file or a fifo.
  *
+ * -x, --xres \<res\>
+ *
+ * Specify SDL width
+ *
+ * -y, --yres \<res\>
+ *
+ * Specify SDL height
+ *
  * @section simu_dbg How to debug barebox simulator
  *
  */