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console/win32: allocate shareable display surface

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Introduce qemu_win32_map_alloc() and qemu_win32_map_free() to allocate
shared memory mapping. The handle can be used to share the mapping with
another process.

Teach qemu_create_displaysurface() to allocate shared memory. Following
patches will introduce other places for shared memory allocation.

Other patches for -display dbus will share the memory when possible with
the client, to avoid expensive memory copy between the processes.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20230606115658.677673-10-marcandre.lureau@redhat.com>
This commit is contained in:
Marc-André Lureau 2023-06-06 15:56:46 +04:00
parent 439e0164cd
commit 09b4c198b8
7 changed files with 102 additions and 8 deletions
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1
ui/qemu-pixman.c
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@ -6,6 +6,7 @@
#include "qemu/osdep.h"
#include "ui/console.h"
#include "standard-headers/drm/drm_fourcc.h"
#include "trace.h"
PixelFormat qemu_pixelformat_from_pixman(pixman_format_code_t format)
{