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[88.21.202.78]) by smtp.gmail.com with ESMTPSA id a16sm4679230wrx.87.2020.02.13.16.13.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 13 Feb 2020 16:13:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=yP9ZmNzMNal3Q8l+6FmOLMJ3w/noghwCGkFho029Ppw=; b=ttXJH5U0v1Xi3a4PZcP8z0wRXcXHU5m058eW47UMg3lVQmVgIyvkrPTm5QHnYtH8Sa HFTo7Fg2usLvJ4H0jPvYXnCDvJICOAqN4QkvdhNUJhbIp7BbY6qDgz8yXnxpP7B3Ogpb elBog8yerWblRiXGbpmrjCEUTyCqq33zEMSxPqGnqyY+OnNaxidkVwU8tZH10fE2rJXn tVBp16k/w92no1AFRcL1QKGCvGONNFVNlWIGTqoHvi/sIR1ctYxasxAIi8lckEzrM8Mp w6hGMsNxFLQ6/0nOWmxpyfLODsqr9WWNGtgakfilGRt2J/gz2xb5UqkGxoknijC9w35N E0Hw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references:mime-version:content-transfer-encoding; bh=yP9ZmNzMNal3Q8l+6FmOLMJ3w/noghwCGkFho029Ppw=; b=F7poE4OfT3QtRymi9DVAsz5Br9S+a9ZI8glO0mnC53JgV4ATlms0aXRsm4Ek2+JEHR NV8dJ3a9h88MQsY5KFv1+mOqB4z4E7maQobO2c/YaXN5XlXYRg3uq9KlPklFSJwC578p Z2jEkAg5bcoezKjYMC+sZ5R4fTQqxV/fFxfow1ZfDc/796dJ8v9r8MHvWB2pF3JDk0uT TnCiBsanxYEBuyK3zwnS4SxOWlMiziI7vXaMOZ2o8Yiy8On/s2K63aqi4r5VU6sBbldZ kfdBQePa6mA7yO+982++taFNp84TgDpmiHzDU98ytoxSP56gVXBmwS9TKRqk+J+7xktw WBIQ== X-Gm-Message-State: APjAAAXKFMERPSK1wFZXlmf4weJ7fTZr+/6KRfd/rpgs1A0EqOXkvuGZ Armqc1fyV8JN9qHs+U1PUkg= X-Google-Smtp-Source: APXvYqydPo6xuhkWDqGB4u75ug48zex7RW5HQ7wJeMMj3qRmtL8Lo3FB8Rm5kUKo92UbI7ETsR7CLw== X-Received: by 2002:a05:600c:22d3:: with SMTP id 19mr662952wmg.20.1581639189859; Thu, 13 Feb 2020 16:13:09 -0800 (PST) From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= To: Helge Deller , qemu-devel@nongnu.org, Sven Schnelle Subject: [PATCH 3/5] hw/display/artist: Delay some variables initialization Date: Fri, 14 Feb 2020 01:13:00 +0100 Message-Id: <20200214001303.12873-4-f4bug@amsat.org> X-Mailer: git-send-email 2.21.1 In-Reply-To: <20200214001303.12873-1-f4bug@amsat.org> References: <20200214001303.12873-1-f4bug@amsat.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::343 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Gerd Hoffmann , Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) We want to have an early exit path. Delay some initializations before the variables are used. Signed-off-by: Philippe Mathieu-Daud=C3=A9 Acked-by: Sven Schnelle --- hw/display/artist.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/hw/display/artist.c b/hw/display/artist.c index 47f0e9f0bc..97c811b35e 100644 --- a/hw/display/artist.c +++ b/hw/display/artist.c @@ -557,90 +557,90 @@ static void fill_window(ARTISTState *s, int startx, i= nt starty, static void draw_line(ARTISTState *s, int x1, int y1, int x2, int y2, bool update_start, int skip_pix, int max_pix) { struct vram_buffer *buf; - uint8_t color =3D artist_get_color(s); + uint8_t color; int dx, dy, t, e, x, y, incy, diago, horiz; bool c1; uint8_t *p; =20 trace_artist_draw_line(x1, y1, x2, y2); =20 if (update_start) { s->vram_start =3D (x2 << 16) | y2; } =20 - buf =3D &s->vram_buffer[ARTIST_BUFFER_AP]; - - c1 =3D false; - if (x2 > x1) { dx =3D x2 - x1; } else { dx =3D x1 - x2; } if (y2 > y1) { dy =3D y2 - y1; } else { dy =3D y1 - y2; } + + c1 =3D false; if (dy > dx) { t =3D y2; y2 =3D x2; x2 =3D t; =20 t =3D y1; y1 =3D x1; x1 =3D t; =20 t =3D dx; dx =3D dy; dy =3D t; =20 c1 =3D true; } =20 if (x1 > x2) { t =3D y2; y2 =3D y1; y1 =3D t; =20 t =3D x1; x1 =3D x2; x2 =3D t; } =20 horiz =3D dy << 1; diago =3D (dy - dx) << 1; e =3D (dy << 1) - dx; =20 if (y1 <=3D y2) { incy =3D 1; } else { incy =3D -1; } x =3D x1; y =3D y1; + color =3D artist_get_color(s); + buf =3D &s->vram_buffer[ARTIST_BUFFER_AP]; =20 do { if (c1) { p =3D buf->data + x * s->width + y; } else { p =3D buf->data + y * s->width + x; } =20 if (skip_pix > 0) { skip_pix--; } else { artist_rop8(s, p, color); } =20 if (e > 0) { artist_invalidate_lines(buf, y, 1); y +=3D incy; e +=3D diago; } else { e +=3D horiz; } x++; } while (x <=3D x2 && (max_pix =3D=3D -1 || --max_pix > 0)); } --=20 2.21.1