From patchwork Fri Jul 8 18:21:36 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 12911651 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 E403CC43334 for ; Fri, 8 Jul 2022 18:22:06 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6AD0E10EBD7; Fri, 8 Jul 2022 18:21:58 +0000 (UTC) Received: from albert.telenet-ops.be (albert.telenet-ops.be [IPv6:2a02:1800:110:4::f00:1a]) by gabe.freedesktop.org (Postfix) with ESMTPS id C3E0910EBD1 for ; Fri, 8 Jul 2022 18:21:47 +0000 (UTC) Received: from ramsan.of.borg ([84.195.186.194]) by albert.telenet-ops.be with bizsmtp id siMn270084C55Sk06iMnby; Fri, 08 Jul 2022 20:21:47 +0200 Received: from rox.of.borg ([192.168.97.57]) by ramsan.of.borg with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.93) (envelope-from ) id 1o9sbr-002fMU-1U; Fri, 08 Jul 2022 20:21:47 +0200 Received: from geert by rox.of.borg with local (Exim 4.93) (envelope-from ) id 1o9sbq-00BtSs-6b; Fri, 08 Jul 2022 20:21:46 +0200 From: Geert Uytterhoeven To: dri-devel@lists.freedesktop.org Subject: [PATCH libdrm v2 06/10] util: Add SMPTE pattern support for C4 format Date: Fri, 8 Jul 2022 20:21:36 +0200 Message-Id: <460a4323d11ffc587c73e4722d7c566c2f0efbb0.1657302034.git.geert@linux-m68k.org> X-Mailer: git-send-email 2.25.1 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" Add support for drawing the SMPTE pattern in a buffer using the C4 indexed format. Signed-off-by: Geert Uytterhoeven --- v2: - Use new smpte_top[], - Split off changes to tests/util/pattern.c. --- tests/util/pattern.c | 42 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/tests/util/pattern.c b/tests/util/pattern.c index 5a648b468e524fbb..8ed5f8dd1a6282f9 100644 --- a/tests/util/pattern.c +++ b/tests/util/pattern.c @@ -668,6 +668,46 @@ static unsigned int smpte_bottom[8] = { SMPTE_COLOR_BLACK, }; +static void write_pixel_4(uint8_t *mem, unsigned int x, unsigned int pixel) +{ + if (x & 1) + mem[x / 2] = (mem[x / 2] & 0xf0) | (pixel & 0x0f); + else + mem[x / 2] = (mem[x / 2] & 0x0f) | (pixel << 4); +} + +static void fill_smpte_c4(void *mem, unsigned int width, unsigned int height, + unsigned int stride) +{ + unsigned int x; + unsigned int y; + + for (y = 0; y < height * 6 / 9; ++y) { + for (x = 0; x < width; ++x) + write_pixel_4(mem, x, smpte_top[x * 7 / width]); + mem += stride; + } + + for (; y < height * 7 / 9; ++y) { + for (x = 0; x < width; ++x) + write_pixel_4(mem, x, smpte_middle[x * 7 / width]); + mem += stride; + } + + for (; y < height; ++y) { + for (x = 0; x < width * 5 / 7; ++x) + write_pixel_4(mem, x, + smpte_bottom[x * 4 / (width * 5 / 7)]); + for (; x < width * 6 / 7; ++x) + write_pixel_4(mem, x, + smpte_bottom[(x - width * 5 / 7) * 3 / + (width / 7) + 4]); + for (; x < width; ++x) + write_pixel_4(mem, x, smpte_bottom[7]); + mem += stride; + } +} + static void fill_smpte_c8(void *mem, unsigned int width, unsigned int height, unsigned int stride) { @@ -726,6 +766,8 @@ static void fill_smpte(const struct util_format_info *info, void *planes[3], unsigned char *u, *v; switch (info->format) { + case DRM_FORMAT_C4: + return fill_smpte_c4(planes[0], width, height, stride); case DRM_FORMAT_C8: return fill_smpte_c8(planes[0], width, height, stride); case DRM_FORMAT_UYVY: