fix endianness problem sharing the videoram buffer

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This patch fixes vga rendering when the guest endianness differs from
the host endianness: in this case we can only share the buffer if the
bpp is 32 and we must change the pixelformat accordingly.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6413 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
malc 2009-01-23 19:56:19 +00:00
parent 1a6f0dbcc0
commit 0da2ea1b37
3 changed files with 63 additions and 12 deletions

View file

@ -1623,12 +1623,19 @@ static void vga_draw_graphic(VGAState *s, int full_update)
disp_width != s->last_width ||
height != s->last_height ||
s->last_depth != depth) {
#if defined(WORDS_BIGENDIAN) == defined(TARGET_WORDS_BIGENDIAN)
if (depth == 16 || depth == 32) {
#else
if (depth == 32) {
#endif
if (is_graphic_console()) {
qemu_free_displaysurface(s->ds->surface);
s->ds->surface = qemu_create_displaysurface_from(disp_width, height, depth,
s->line_offset,
s->vram_ptr + (s->start_addr * 4));
#if defined(WORDS_BIGENDIAN) != defined(TARGET_WORDS_BIGENDIAN)
s->ds->surface->pf = qemu_different_endianness_pixelformat(depth);
#endif
dpy_resize(s->ds);
} else {
qemu_console_resize(s->ds, disp_width, height);