From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 25 Sep 2024 16:36:39 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1stT8A-002d69-0T for lore@lore.pengutronix.de; Wed, 25 Sep 2024 16:36:39 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1stT88-0000r2-VS for lore@pengutronix.de; Wed, 25 Sep 2024 16:36:39 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:To:In-Reply-To:References: Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Cc:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Yl50CBgsTiikvp+snmNHbqoyPi0fncGtNI0FuuejM7s=; b=AOSLtv6Nmi1FbDf/RFLhvu5j5o axEb+z7ZqzwWGE7lv+ORReWyPHxYkFeSZNz8EmzBAhukJTIUjwMdD5EIBFyf5jv645oEJ+OI3x1Cc q2716H2GTOU5VnJMuWIZMjBW6q4LH64tZiGTV6xl6wMnXOW3B06GHknvpnMQFyE5MhoOnko03wexs P59czQpCz+nq7Yuqm8sd3AqnprIru/oJtl969iEM3xK74lEo7xi9zPNBmTkeY3C5LE+vDZ/Yps9ZC /hPjiBAATGOgiJeBbJUYoxJswx1Jq6ayYrFYS9NkMYjTHjiwxXtkntq3XdB43r9Cd/dg8DJcouQli Uaz7ApGg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1stT7h-00000005eyZ-2EnO; Wed, 25 Sep 2024 14:36:09 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1stT6a-00000005ef4-38TS for barebox@lists.infradead.org; Wed, 25 Sep 2024 14:35:02 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1stT6R-0000Ij-D8; Wed, 25 Sep 2024 16:34:51 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1stT6Q-001TDU-Ul; Wed, 25 Sep 2024 16:34:50 +0200 Received: from localhost ([::1] helo=dude02.red.stw.pengutronix.de) by dude02.red.stw.pengutronix.de with esmtp (Exim 4.96) (envelope-from ) id 1stT6R-00DPQo-0z; Wed, 25 Sep 2024 16:34:50 +0200 From: Sascha Hauer Date: Wed, 25 Sep 2024 16:34:49 +0200 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20240925-graphics-v1-1-f1fe5d2cceec@pengutronix.de> References: <20240925-graphics-v1-0-f1fe5d2cceec@pengutronix.de> In-Reply-To: <20240925-graphics-v1-0-f1fe5d2cceec@pengutronix.de> To: "open list:BAREBOX" X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1727274890; l=1117; i=s.hauer@pengutronix.de; s=20230412; h=from:subject:message-id; bh=qvKSoia28YlGG+p+FIdzRilcYFItxmhLo0nIeRITWyw=; b=YVthCCtclITle3aT1HMiXT/OuLKaoV3k4+BsBbU1G7DQuARAEt4lQ6tBvtYJTRmKMsKckzQa/ kpyTXBpBi7uCzg1gv08ZJ7xPdzdrJIZacBveAAgNEDZZXvQy2d4Cqde X-Developer-Key: i=s.hauer@pengutronix.de; a=ed25519; pk=4kuc9ocmECiBJKWxYgqyhtZOHj5AWi7+d0n/UjhkwTg= X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240925_073500_859371_BB3AABEB X-CRM114-Status: GOOD ( 10.46 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.0 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH 1/5] graphic_utils: Clip to screen boundaries X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) Do not render the parts of the image that are outside the screen boundaries to prevent memory corruptions. Signed-off-by: Sascha Hauer --- lib/gui/graphic_utils.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lib/gui/graphic_utils.c b/lib/gui/graphic_utils.c index d91a7f3550..93ef1214f9 100644 --- a/lib/gui/graphic_utils.c +++ b/lib/gui/graphic_utils.c @@ -229,6 +229,9 @@ void gu_rgba_blend(struct fb_info *info, struct image *img, void* buf, int heigh line_length = info->line_length; for (y = 0; y < height; y++) { + if (y + starty >= info->yres) + break; + adr = buf + (y + starty) * line_length + startx * (info->bits_per_pixel >> 3); image = img->data + (y * img->width *img_byte_per_pixel); @@ -236,6 +239,9 @@ void gu_rgba_blend(struct fb_info *info, struct image *img, void* buf, int heigh for (x = 0; x < width; x++) { uint8_t *pixel = image; + if (x + startx >= info->xres) + break; + if (is_rgba) gu_set_rgba_pixel(info, adr, pixel[0], pixel[1], pixel[2], pixel[3]); -- 2.39.5