From 0e74eb86eaf3ef57e9f9741cb668784c96e654ff Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= Date: Thu, 7 Dec 2023 13:45:01 +0000 Subject: ui: drop VNC feature _MASK constants MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Each VNC feature enum entry has a corresponding _MASK constant which is the bit-shifted value. It is very easy for contributors to accidentally use the _MASK constant, instead of the non-_MASK constant, or the reverse. No compiler warning is possible and it'll just silently do the wrong thing at runtime. By introducing the vnc_set_feature helper method, we can drop all the _MASK constants and thus prevent any future accidents. Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Daniel P. Berrangé --- ui/vnc.c | 34 +++++++++++++++++----------------- ui/vnc.h | 22 +++++----------------- 2 files changed, 22 insertions(+), 34 deletions(-) (limited to 'ui') diff --git a/ui/vnc.c b/ui/vnc.c index 4f23a0f..3db87fd 100644 --- a/ui/vnc.c +++ b/ui/vnc.c @@ -2144,16 +2144,16 @@ static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings) vs->vnc_encoding = enc; break; case VNC_ENCODING_HEXTILE: - vs->features |= VNC_FEATURE_HEXTILE_MASK; + vnc_set_feature(vs, VNC_FEATURE_HEXTILE); vs->vnc_encoding = enc; break; case VNC_ENCODING_TIGHT: - vs->features |= VNC_FEATURE_TIGHT_MASK; + vnc_set_feature(vs, VNC_FEATURE_TIGHT); vs->vnc_encoding = enc; break; #ifdef CONFIG_PNG case VNC_ENCODING_TIGHT_PNG: - vs->features |= VNC_FEATURE_TIGHT_PNG_MASK; + vnc_set_feature(vs, VNC_FEATURE_TIGHT_PNG); vs->vnc_encoding = enc; break; #endif @@ -2163,57 +2163,57 @@ static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings) * So prioritize ZRLE, even if the client hints that it prefers * ZLIB. */ - if ((vs->features & VNC_FEATURE_ZRLE_MASK) == 0) { - vs->features |= VNC_FEATURE_ZLIB_MASK; + if (!vnc_has_feature(vs, VNC_FEATURE_ZRLE)) { + vnc_set_feature(vs, VNC_FEATURE_ZLIB); vs->vnc_encoding = enc; } break; case VNC_ENCODING_ZRLE: - vs->features |= VNC_FEATURE_ZRLE_MASK; + vnc_set_feature(vs, VNC_FEATURE_ZRLE); vs->vnc_encoding = enc; break; case VNC_ENCODING_ZYWRLE: - vs->features |= VNC_FEATURE_ZYWRLE_MASK; + vnc_set_feature(vs, VNC_FEATURE_ZYWRLE); vs->vnc_encoding = enc; break; case VNC_ENCODING_DESKTOPRESIZE: - vs->features |= VNC_FEATURE_RESIZE_MASK; + vnc_set_feature(vs, VNC_FEATURE_RESIZE); break; case VNC_ENCODING_DESKTOP_RESIZE_EXT: - vs->features |= VNC_FEATURE_RESIZE_EXT_MASK; + vnc_set_feature(vs, VNC_FEATURE_RESIZE_EXT); break; case VNC_ENCODING_POINTER_TYPE_CHANGE: - vs->features |= VNC_FEATURE_POINTER_TYPE_CHANGE_MASK; + vnc_set_feature(vs, VNC_FEATURE_POINTER_TYPE_CHANGE); break; case VNC_ENCODING_RICH_CURSOR: - vs->features |= VNC_FEATURE_RICH_CURSOR_MASK; + vnc_set_feature(vs, VNC_FEATURE_RICH_CURSOR); break; case VNC_ENCODING_ALPHA_CURSOR: - vs->features |= VNC_FEATURE_ALPHA_CURSOR_MASK; + vnc_set_feature(vs, VNC_FEATURE_ALPHA_CURSOR); break; case VNC_ENCODING_EXT_KEY_EVENT: send_ext_key_event_ack(vs); break; case VNC_ENCODING_AUDIO: if (vs->vd->audio_state) { - vs->features |= VNC_FEATURE_AUDIO_MASK; + vnc_set_feature(vs, VNC_FEATURE_AUDIO); send_ext_audio_ack(vs); } break; case VNC_ENCODING_WMVi: - vs->features |= VNC_FEATURE_WMVI_MASK; + vnc_set_feature(vs, VNC_FEATURE_WMVI); break; case VNC_ENCODING_LED_STATE: - vs->features |= VNC_FEATURE_LED_STATE_MASK; + vnc_set_feature(vs, VNC_FEATURE_LED_STATE); break; case VNC_ENCODING_XVP: if (vs->vd->power_control) { - vs->features |= VNC_FEATURE_XVP_MASK; + vnc_set_feature(vs, VNC_FEATURE_XVP); send_xvp_message(vs, VNC_XVP_CODE_INIT); } break; case VNC_ENCODING_CLIPBOARD_EXT: - vs->features |= VNC_FEATURE_CLIPBOARD_EXT_MASK; + vnc_set_feature(vs, VNC_FEATURE_CLIPBOARD_EXT); vnc_server_cut_text_caps(vs); break; case VNC_ENCODING_COMPRESSLEVEL0 ... VNC_ENCODING_COMPRESSLEVEL0 + 9: diff --git a/ui/vnc.h b/ui/vnc.h index 96d19dc..4521dc8 100644 --- a/ui/vnc.h +++ b/ui/vnc.h @@ -467,23 +467,6 @@ enum VncFeatures { VNC_FEATURE_AUDIO, }; -#define VNC_FEATURE_RESIZE_MASK (1 << VNC_FEATURE_RESIZE) -#define VNC_FEATURE_RESIZE_EXT_MASK (1 << VNC_FEATURE_RESIZE_EXT) -#define VNC_FEATURE_HEXTILE_MASK (1 << VNC_FEATURE_HEXTILE) -#define VNC_FEATURE_POINTER_TYPE_CHANGE_MASK (1 << VNC_FEATURE_POINTER_TYPE_CHANGE) -#define VNC_FEATURE_WMVI_MASK (1 << VNC_FEATURE_WMVI) -#define VNC_FEATURE_TIGHT_MASK (1 << VNC_FEATURE_TIGHT) -#define VNC_FEATURE_ZLIB_MASK (1 << VNC_FEATURE_ZLIB) -#define VNC_FEATURE_RICH_CURSOR_MASK (1 << VNC_FEATURE_RICH_CURSOR) -#define VNC_FEATURE_ALPHA_CURSOR_MASK (1 << VNC_FEATURE_ALPHA_CURSOR) -#define VNC_FEATURE_TIGHT_PNG_MASK (1 << VNC_FEATURE_TIGHT_PNG) -#define VNC_FEATURE_ZRLE_MASK (1 << VNC_FEATURE_ZRLE) -#define VNC_FEATURE_ZYWRLE_MASK (1 << VNC_FEATURE_ZYWRLE) -#define VNC_FEATURE_LED_STATE_MASK (1 << VNC_FEATURE_LED_STATE) -#define VNC_FEATURE_XVP_MASK (1 << VNC_FEATURE_XVP) -#define VNC_FEATURE_CLIPBOARD_EXT_MASK (1 << VNC_FEATURE_CLIPBOARD_EXT) -#define VNC_FEATURE_AUDIO_MASK (1 << VNC_FEATURE_AUDIO) - /* Client -> Server message IDs */ #define VNC_MSG_CLIENT_SET_PIXEL_FORMAT 0 @@ -599,6 +582,11 @@ static inline uint32_t vnc_has_feature(VncState *vs, int feature) { return (vs->features & (1 << feature)); } +static inline void vnc_set_feature(VncState *vs, enum VncFeatures feature) +{ + vs->features |= (1 << feature); +} + /* Framebuffer */ void vnc_framebuffer_update(VncState *vs, int x, int y, int w, int h, int32_t encoding); -- cgit v1.1