From patchwork Wed Oct 25 07:23:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 13435534 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E4E35C25B6B for ; Wed, 25 Oct 2023 07:24:30 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C5E7C10E564; Wed, 25 Oct 2023 07:24:09 +0000 (UTC) Received: from michel.telenet-ops.be (michel.telenet-ops.be [IPv6:2a02:1800:110:4::f00:18]) by gabe.freedesktop.org (Postfix) with ESMTPS id B7C1A10E565 for ; Wed, 25 Oct 2023 07:24:05 +0000 (UTC) Received: from ramsan.of.borg ([IPv6:2a02:1810:ac12:ed40:7faa:e55:54a:cff]) by michel.telenet-ops.be with bizsmtp id 27Q32B00P5Uc89d067Q391; Wed, 25 Oct 2023 09:24:03 +0200 Received: from rox.of.borg ([192.168.97.57]) by ramsan.of.borg with esmtp (Exim 4.95) (envelope-from ) id 1qvYFA-007ScA-6p; Wed, 25 Oct 2023 09:24:03 +0200 Received: from geert by rox.of.borg with local (Exim 4.95) (envelope-from ) id 1qvYFH-00Bs6L-1u; Wed, 25 Oct 2023 09:24:03 +0200 From: Geert Uytterhoeven To: dri-devel@lists.freedesktop.org Subject: [PATCH libdrm v3 5/9] modetest: add support for parsing big-endian formats Date: Wed, 25 Oct 2023 09:23:45 +0200 Message-Id: <8549657b8830013a317aeedcabd69ab77571ed9a.1698217235.git.geert@linux-m68k.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Geert Uytterhoeven Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" When specifying a frame buffer format like "RG16_BE" (big-endian RG16), modetest still uses the little-endian variant, as the format string is truncated to four characters. Fix this by increasing the format string size to 8 bytes (7 characters + NUL terminator). Signed-off-by: Geert Uytterhoeven --- v3: - Update for suffix change from "be" to "_BE", cfr. commit ffb9375a505700ad ("xf86drm: handle DRM_FORMAT_BIG_ENDIAN in drmGetFormatName()"), - Replace hardcoded numbers in code by sizeof(), v2: - New. --- tests/modetest/modetest.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) diff --git a/tests/modetest/modetest.c b/tests/modetest/modetest.c index 9b1aa537be8716cf..cc96015f4a555dd3 100644 --- a/tests/modetest/modetest.c +++ b/tests/modetest/modetest.c @@ -817,7 +817,7 @@ struct pipe_arg { unsigned int num_cons; uint32_t crtc_id; char mode_str[64]; - char format_str[5]; + char format_str[8]; /* need to leave room for "_BE" and terminating \0 */ float vrefresh; unsigned int fourcc; drmModeModeInfo *mode; @@ -841,7 +841,7 @@ struct plane_arg { unsigned int old_fb_id; struct bo *bo; struct bo *old_bo; - char format_str[5]; /* need to leave room for terminating \0 */ + char format_str[8]; /* need to leave room for "_BE" and terminating \0 */ unsigned int fourcc; }; @@ -2032,8 +2032,9 @@ static int parse_connector(struct pipe_arg *pipe, const char *arg) } if (*p == '@') { - strncpy(pipe->format_str, p + 1, 4); - pipe->format_str[4] = '\0'; + len = sizeof(pipe->format_str) - 1; + strncpy(pipe->format_str, p + 1, len); + pipe->format_str[len] = '\0'; } pipe->fourcc = util_format_fourcc(pipe->format_str); @@ -2047,6 +2048,7 @@ static int parse_connector(struct pipe_arg *pipe, const char *arg) static int parse_plane(struct plane_arg *plane, const char *p) { + unsigned int len; char *end; plane->plane_id = strtoul(p, &end, 10); @@ -2085,8 +2087,9 @@ static int parse_plane(struct plane_arg *plane, const char *p) } if (*end == '@') { - strncpy(plane->format_str, end + 1, 4); - plane->format_str[4] = '\0'; + len = sizeof(plane->format_str) - 1; + strncpy(plane->format_str, end + 1, len); + plane->format_str[len] = '\0'; } else { strcpy(plane->format_str, "XR24"); }