optimize screendump for the common non-switch case

switch console only if needed, also pass down whenever the console was
switched or not because a displaysurface redraw is only needed in case
the console was switched.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/hw/tcx.c b/hw/tcx.c
index 2b66d8619e..ac7dcb428c 100644
--- a/hw/tcx.c
+++ b/hw/tcx.c
@@ -56,8 +56,8 @@ typedef struct TCXState {
     uint8_t dac_index, dac_state;
 } TCXState;
 
-static void tcx_screen_dump(void *opaque, const char *filename);
-static void tcx24_screen_dump(void *opaque, const char *filename);
+static void tcx_screen_dump(void *opaque, const char *filename, bool cswitch);
+static void tcx24_screen_dump(void *opaque, const char *filename, bool cswitch);
 
 static void tcx_set_dirty(TCXState *s)
 {
@@ -574,7 +574,7 @@ static int tcx_init1(SysBusDevice *dev)
     return 0;
 }
 
-static void tcx_screen_dump(void *opaque, const char *filename)
+static void tcx_screen_dump(void *opaque, const char *filename, bool cswitch)
 {
     TCXState *s = opaque;
     FILE *f;
@@ -601,7 +601,7 @@ static void tcx_screen_dump(void *opaque, const char *filename)
     return;
 }
 
-static void tcx24_screen_dump(void *opaque, const char *filename)
+static void tcx24_screen_dump(void *opaque, const char *filename, bool cswitch)
 {
     TCXState *s = opaque;
     FILE *f;