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ui: Add dpy_gfx_check_format() to check backend shared surface support

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This allows VGA to decide whether to use a shared surface based on
whether the UI backend supports the format or not. Backends that
don't provide the new callback fallback to native 32 bpp which
is equivalent to what was supported before.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

[ kraxel: fix console check, allow only 32 bpp as fallback ]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Benjamin Herrenschmidt 2014-07-07 16:39:05 +10:00 • committed by Gerd Hoffmann
parent aca7aaf628
commit 49743df399
3 changed files with 43 additions and 4 deletions
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4
include/ui/console.h
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@ -161,6 +161,8 @@ typedef struct DisplayChangeListenerOps {
void (*dpy_gfx_copy)(DisplayChangeListener *dcl,
int src_x, int src_y,
int dst_x, int dst_y, int w, int h);
bool (*dpy_gfx_check_format)(DisplayChangeListener *dcl,
pixman_format_code_t format);
void (*dpy_text_cursor)(DisplayChangeListener *dcl,
int x, int y);
@ -235,6 +237,8 @@ void dpy_gfx_update_dirty(QemuConsole *con,
MemoryRegion *address_space,
uint64_t base,
bool invalidate);
bool dpy_gfx_check_format(QemuConsole *con,
pixman_format_code_t format);
static inline int surface_stride(DisplaySurface *s)
{