[Gc-linux-cvs] libsdl/src/video/gc SDL_gcvideo.c,1.3,1.4

[Albert H. <he...@us...>]

Update of /cvsroot/gc-linux/libsdl/src/video/gc
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv17380/src/video/gc

Modified Files:
	SDL_gcvideo.c 
Log Message:
Do not modify the yres, even on PAL mode.
We want the yres equal to the actual physical screen mode.
Make sure video page 0 is both the visible and back page when
no double-buffering is enabled.


Index: SDL_gcvideo.c
===================================================================
RCS file: /cvsroot/gc-linux/libsdl/src/video/gc/SDL_gcvideo.c,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -d -r1.3 -r1.4
--- SDL_gcvideo.c	17 Mar 2006 22:32:02 -0000	1.3
+++ SDL_gcvideo.c	21 Mar 2006 22:36:38 -0000	1.4
@@ -439,8 +439,9 @@
 		vinfo.bits_per_pixel = bpp;
 		vinfo.xres = width;
 		vinfo.xres_virtual = width;
-		vinfo.yres = height;
-		vinfo.yres_virtual = 2*height;
+		/* do not modify yres*, we use a fake 640x480 mode in PAL */
+		//vinfo.yres = height;
+		//vinfo.yres_virtual = 2*height;
 		vinfo.xoffset = 0;
 		vinfo.yoffset = 0;
 		vinfo.red.length = vinfo.red.offset = 0;
@@ -456,7 +457,7 @@
 		int maxheight;
 
 		/* Figure out how much video memory is available */
-		maxheight = 2*height;
+		maxheight = 2*yres;
 		if (vinfo.yres_virtual > maxheight) {
 			vinfo.yres_virtual = maxheight;
 		}
@@ -514,12 +515,16 @@
 	page_address[0] = mapped_mem;
 	page_address[1] = mapped_mem + current->pitch * yres;
 
-	back_page = 0;
+	back_page = 1;
 	if (flags & SDL_DOUBLEBUF) {
 		current->flags |= SDL_DOUBLEBUF;
 		flip_pending = 1;
 	} else {
 		flip_pending = 0;
+		/* make page 0 both the visible and back page */
+		back_page = ioctl(console_fd, FBIOFLIPHACK, &back_page);
+		if (back_page < 0)
+			back_page = 0;
 	}
 
 	/* Set the update rectangle function */