diff options
| author | Marc-André Lureau <marcandre.lureau@redhat.com> | 2023-06-06 15:56:46 +0400 |
|---|---|---|
| committer | Marc-André Lureau <marcandre.lureau@redhat.com> | 2023-06-27 17:08:56 +0200 |
| commit | 09b4c198b80c3f5c9c051bc8d8935668cdd206e5 (patch) | |
| tree | 4b5f90d29bd863eed8e1bda300cadb5bbebec68b /include | |
| parent | 439e0164cd83bf50095e6f66bb036b43a65a68b6 (diff) | |
console/win32: allocate shareable display surface
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/sysemu/os-win32.h | 3 | ||||
| -rw-r--r-- | include/ui/console.h | 8 |
2 files changed, 11 insertions, 0 deletions
diff --git a/include/sysemu/os-win32.h b/include/sysemu/os-win32.h index 65f6c9ea57..91aa0d7ec0 100644 --- a/include/sysemu/os-win32.h +++ b/include/sysemu/os-win32.h @@ -263,6 +263,9 @@ EXCEPTION_DISPOSITION win32_close_exception_handler(struct _EXCEPTION_RECORD*, void*, struct _CONTEXT*, void*); +void *qemu_win32_map_alloc(size_t size, HANDLE *h, Error **errp); +void qemu_win32_map_free(void *ptr, HANDLE h, Error **errp); + #ifdef __cplusplus } #endif diff --git a/include/ui/console.h b/include/ui/console.h index 2093e2a3ba..2ab0c7112a 100644 --- a/include/ui/console.h +++ b/include/ui/console.h @@ -143,6 +143,10 @@ typedef struct DisplaySurface { GLenum gltype; GLuint texture; #endif +#ifdef WIN32 + HANDLE handle; + uint32_t handle_offset; +#endif } DisplaySurface; typedef struct QemuUIInfo { @@ -329,6 +333,10 @@ DisplaySurface *qemu_create_displaysurface_from(int width, int height, DisplaySurface *qemu_create_displaysurface_pixman(pixman_image_t *image); DisplaySurface *qemu_create_placeholder_surface(int w, int h, const char *msg); +#ifdef WIN32 +void qemu_displaysurface_win32_set_handle(DisplaySurface *surface, + HANDLE h, uint32_t offset); +#endif PixelFormat qemu_default_pixelformat(int bpp); DisplaySurface *qemu_create_displaysurface(int width, int height); |