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[Qemu-devel] [PATCH 06/12] console: add and use qemu_display_find_defaul


From: Gerd Hoffmann
Subject: [Qemu-devel] [PATCH 06/12] console: add and use qemu_display_find_default
Date: Wed, 21 Feb 2018 14:15:31 +0100

Using the new display registry instead of #ifdefs in vl.c.

Signed-off-by: Gerd Hoffmann <address@hidden>
---
 include/ui/console.h |  1 +
 ui/console.c         | 19 +++++++++++++++++++
 vl.c                 | 15 +++++----------
 3 files changed, 25 insertions(+), 10 deletions(-)

diff --git a/include/ui/console.h b/include/ui/console.h
index 1832c7eccf..a0d3330056 100644
--- a/include/ui/console.h
+++ b/include/ui/console.h
@@ -438,6 +438,7 @@ struct QemuDisplay {
 };
 
 void qemu_display_register(QemuDisplay *ui);
+bool qemu_display_find_default(DisplayOptions *opts);
 void qemu_display_early_init(DisplayOptions *opts);
 void qemu_display_init(DisplayState *ds, DisplayOptions *opts);
 
diff --git a/ui/console.c b/ui/console.c
index 8e55a05108..5a63e9dfa2 100644
--- a/ui/console.c
+++ b/ui/console.c
@@ -2178,6 +2178,25 @@ void qemu_display_register(QemuDisplay *ui)
     dpys[ui->type] = ui;
 }
 
+bool qemu_display_find_default(DisplayOptions *opts)
+{
+    static DisplayType prio[] = {
+        DISPLAY_TYPE_GTK,
+        DISPLAY_TYPE_SDL,
+        DISPLAY_TYPE_COCOA
+    };
+    int i;
+
+    for (i = 0; i < ARRAY_SIZE(prio); i++) {
+        if (dpys[prio[i]] == NULL) {
+            continue;
+        }
+        opts->type = prio[i];
+        return true;
+    }
+    return false;
+}
+
 void qemu_display_early_init(DisplayOptions *opts)
 {
     assert(opts->type < DISPLAY_TYPE__MAX);
diff --git a/vl.c b/vl.c
index 47c953f8dc..59e56593f8 100644
--- a/vl.c
+++ b/vl.c
@@ -4285,17 +4285,12 @@ int main(int argc, char **argv, char **envp)
     }
 #endif
     if (dpy.type == DISPLAY_TYPE_DEFAULT && !display_remote) {
-#if defined(CONFIG_GTK)
-        dpy.type = DISPLAY_TYPE_GTK;
-#elif defined(CONFIG_SDL)
-        dpy.type = DISPLAY_TYPE_SDL;
-#elif defined(CONFIG_COCOA)
-        dpy.type = DISPLAY_TYPE_COCOA;
-#elif defined(CONFIG_VNC)
-        vnc_parse("localhost:0,to=99,id=default", &error_abort);
-#else
-        dpy.type = DISPLAY_TYPE_NONE;
+        if (!qemu_display_find_default(&dpy)) {
+            dpy.type = DISPLAY_TYPE_NONE;
+#if defined(CONFIG_VNC)
+            vnc_parse("localhost:0,to=99,id=default", &error_abort);
 #endif
+        }
     }
     if (dpy.type == DISPLAY_TYPE_DEFAULT) {
         dpy.type = DISPLAY_TYPE_NONE;
-- 
2.9.3




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