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https://gitlab.com/qemu-project/qemu
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console: add dpy_gfx_update_dirty
Calls dpy_gfx_update for all dirty scanlines. Works for DisplaySurfaces backed by guest memory (i.e. the ones created using qemu_create_displaysurface_guestmem). Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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parent
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commit
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@ -232,6 +232,10 @@ void dpy_text_resize(QemuConsole *con, int w, int h);
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void dpy_mouse_set(QemuConsole *con, int x, int y, int on);
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void dpy_cursor_define(QemuConsole *con, QEMUCursor *cursor);
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bool dpy_cursor_define_supported(QemuConsole *con);
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void dpy_gfx_update_dirty(QemuConsole *con,
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MemoryRegion *address_space,
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uint64_t base,
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bool invalidate);
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static inline int surface_stride(DisplaySurface *s)
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{
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61
ui/console.c
61
ui/console.c
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@ -1581,6 +1581,67 @@ bool dpy_cursor_define_supported(QemuConsole *con)
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return false;
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}
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/*
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* Call dpy_gfx_update for all dirity scanlines. Works for
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* DisplaySurfaces backed by guest memory (i.e. the ones created
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* using qemu_create_displaysurface_guestmem).
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*/
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void dpy_gfx_update_dirty(QemuConsole *con,
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MemoryRegion *address_space,
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hwaddr base,
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bool invalidate)
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{
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DisplaySurface *ds = qemu_console_surface(con);
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int width = surface_stride(ds);
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int height = surface_height(ds);
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hwaddr size = width * height;
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MemoryRegionSection mem_section;
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MemoryRegion *mem;
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ram_addr_t addr;
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int first, last, i;
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bool dirty;
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mem_section = memory_region_find(address_space, base, size);
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mem = mem_section.mr;
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if (int128_get64(mem_section.size) != size ||
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!memory_region_is_ram(mem_section.mr)) {
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goto out;
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}
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assert(mem);
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memory_region_sync_dirty_bitmap(mem);
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addr = mem_section.offset_within_region;
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first = -1;
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last = -1;
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for (i = 0; i < height; i++, addr += width) {
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dirty = invalidate ||
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memory_region_get_dirty(mem, addr, width, DIRTY_MEMORY_VGA);
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if (dirty) {
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if (first == -1) {
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first = i;
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}
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last = i;
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}
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if (first != -1 && !dirty) {
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assert(last != -1 && last >= first);
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dpy_gfx_update(con, 0, first, surface_width(ds),
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last - first + 1);
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first = -1;
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}
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}
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if (first != -1) {
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assert(last != -1 && last >= first);
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dpy_gfx_update(con, 0, first, surface_width(ds),
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last - first + 1);
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}
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memory_region_reset_dirty(mem, mem_section.offset_within_region, size,
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DIRTY_MEMORY_VGA);
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out:
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memory_region_unref(mem);
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}
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/***********************************************************/
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/* register display */
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