1 files changed, 108 insertions, 0 deletions
diff --git a/arch/sandbox/os/sdl.c b/arch/sandbox/os/sdl.c
new file mode 100644
index 0000000000..ec538e9af9
--- /dev/null
+++ b/arch/sandbox/os/sdl.c
@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ *
+ * GPL v2
+ */
+
+#include <stdio.h>
+#include <SDL.h>
+#include <time.h>
+#include <signal.h>
+#include <mach/linux.h>
+#include <unistd.h>
+#include <pthread.h>
+
+struct fb_bitfield {
+	uint32_t offset;			/* beginning of bitfield	*/
+	uint32_t length;			/* length of bitfield		*/
+	uint32_t msb_right;			/* != 0 : Most significant bit is */
+					/* right */
+};
+
+static SDL_Surface *real_screen;
+static void *buffer = NULL;
+pthread_t th;
+
+int sdl_init(void)
+{
+	return SDL_Init(SDL_INIT_VIDEO | SDL_INIT_NOPARACHUTE);
+}
+
+static void sdl_copy_buffer(SDL_Surface *screen)
+{
+	if (SDL_MUSTLOCK(screen)) {
+		if (SDL_LockSurface(screen) < 0)
+			return;
+	}
+
+	memcpy(screen->pixels, buffer, screen->pitch * screen->h);
+
+	if(SDL_MUSTLOCK(screen))
+		SDL_UnlockSurface(screen);
+}
+
+static void *threadStart(void *ptr)
+{
+	while (1) {
+		usleep(1000 * 100);
+
+		sdl_copy_buffer(real_screen);
+		SDL_Flip(real_screen);
+	}
+
+	return 0;
+}
+
+void sdl_start_timer(void)
+{
+	pthread_attr_t attr;
+	pthread_attr_init(&attr);
+	pthread_create(&th, &attr, threadStart, NULL);
+}
+
+void sdl_stop_timer(void)
+{
+	pthread_cancel(th);
+}
+
+void sdl_get_bitfield_rgba(struct fb_bitfield *r, struct fb_bitfield *g,
+			    struct fb_bitfield *b, struct fb_bitfield *a)
+{
+	SDL_Surface *screen = real_screen;
+
+	r->length = 8 - screen->format->Rloss;
+	r->offset = screen->format->Rshift;
+	g->length = 8 - screen->format->Gloss;
+	g->offset = screen->format->Gshift;
+	b->length = 8 - screen->format->Bloss;
+	b->offset = screen->format->Bshift;
+	a->length = 8 - screen->format->Aloss;
+	a->offset = screen->format->Ashift;
+}
+
+int sdl_open(int xres, int yres, int bpp, void* buf)
+{
+	int flags = SDL_HWSURFACE | SDL_ASYNCBLIT | SDL_HWACCEL;
+
+	if (sdl_init() < 0) {
+		printf("Could not initialize SDL: %s.\n", SDL_GetError());
+		return -1;
+	}
+
+	real_screen = SDL_SetVideoMode(xres, yres, bpp, flags);
+	if (!real_screen) {
+		sdl_close();
+		fprintf(stderr, "Couldn't create renderer: %s\n", SDL_GetError());
+		return -1;
+	}
+
+	buffer = buf;
+
+	return 0;
+}
+
+void sdl_close(void)
+{
+	sdl_stop_timer();
+	SDL_Quit();
+}