diff options
| -rw-r--r-- | qemu-options.hx | 7 | ||||
| -rw-r--r-- | vnc-encoding-tight.c | 4 | ||||
| -rw-r--r-- | vnc.c | 2 | ||||
| -rw-r--r-- | vnc.h | 2 |
4 files changed, 15 insertions, 0 deletions
diff --git a/qemu-options.hx b/qemu-options.hx index 0d7dd90710..40cee704ea 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -835,6 +835,13 @@ empty, with a @code{deny} policy. Thus no one will be allowed to use the VNC server until the ACLs have been loaded. This can be achieved using the @code{acl} monitor command. +@item lossy + +Enable lossy compression methods (gradient, JPEG, ...). If this +option is set, VNC client may receive lossy framebuffer updates +depending on its encoding settings. Enabling this option can save +a lot of bandwidth at the expense of quality. + @end table ETEXI diff --git a/vnc-encoding-tight.c b/vnc-encoding-tight.c index 5b69ff0b52..c1a292bdd2 100644 --- a/vnc-encoding-tight.c +++ b/vnc-encoding-tight.c @@ -228,6 +228,10 @@ tight_detect_smooth_image(VncState *vs, int w, int h) int compression = vs->tight_compression; int quality = vs->tight_quality; + if (!vs->vd->lossy) { + return 0; + } + if (ds_get_bytes_per_pixel(vs->ds) == 1 || vs->clientds.pf.bytes_per_pixel == 1 || w < VNC_TIGHT_DETECT_MIN_WIDTH || h < VNC_TIGHT_DETECT_MIN_HEIGHT) { @@ -2482,6 +2482,8 @@ int vnc_display_open(DisplayState *ds, const char *display) #endif } else if (strncmp(options, "acl", 3) == 0) { acl = 1; + } else if (strncmp(options, "lossy", 5) == 0) { + vs->lossy = true; } } @@ -33,6 +33,7 @@ #include "monitor.h" #include "audio/audio.h" #include <zlib.h> +#include <stdbool.h> #include "keymaps.h" @@ -111,6 +112,7 @@ struct VncDisplay char *display; char *password; int auth; + bool lossy; #ifdef CONFIG_VNC_TLS int subauth; /* Used by VeNCrypt */ VncDisplayTLS tls; |