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{ "id": 24201, "url": "https://patchwork.libcamera.org/api/patches/24201/?format=api", "web_url": "https://patchwork.libcamera.org/patch/24201/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/projects/1/?format=api", "name": "libcamera", "link_name": "libcamera", "list_id": "libcamera_core", "list_email": "libcamera-devel@lists.libcamera.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20250824-b4-v0-5-2-gpuisp-v2-a-v2-18-96f4576c814e@linaro.org>", "date": "2025-08-24T00:48:30", "name": "[v2,18/37] utils: gen-shader-headers: Add a utility to generate headers from shaders", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "272e0b02b0e89ff5247aa2924f3bd52c1f097477", "submitter": { "id": 175, "url": "https://patchwork.libcamera.org/api/people/175/?format=api", "name": "Bryan O'Donoghue", "email": "bryan.odonoghue@linaro.org" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/24201/mbox/", "series": [ { "id": 5400, "url": "https://patchwork.libcamera.org/api/series/5400/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=5400", "date": "2025-08-24T00:48:12", "name": "Add GLES 2.0 GPUISP to libcamera", "version": 2, "mbox": "https://patchwork.libcamera.org/series/5400/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/24201/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/24201/checks/", "tags": {}, "headers": { "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>", "X-Original-To": "parsemail@patchwork.libcamera.org", "Delivered-To": "parsemail@patchwork.libcamera.org", "Received": [ "from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 2E1BEBEFBE\n\tfor <parsemail@patchwork.libcamera.org>;\n\tSun, 24 Aug 2025 00:49:18 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 42EF469302;\n\tSun, 24 Aug 2025 02:49:17 +0200 (CEST)", "from mail-wm1-x32c.google.com (mail-wm1-x32c.google.com\n\t[IPv6:2a00:1450:4864:20::32c])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 2D9F4692E2\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tSun, 24 Aug 2025 02:48:53 +0200 (CEST)", "by mail-wm1-x32c.google.com with SMTP id\n\t5b1f17b1804b1-45a1b05a59fso25385795e9.1\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tSat, 23 Aug 2025 17:48:53 -0700 (PDT)", "from [192.168.0.13] (188-141-3-146.dynamic.upc.ie. 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\n\tSat, 23 Aug 2025 17:48:52 -0700 (PDT)", "From": "Bryan O'Donoghue <bryan.odonoghue@linaro.org>", "Date": "Sun, 24 Aug 2025 01:48:30 +0100", "Subject": "[PATCH v2 18/37] utils: gen-shader-headers: Add a utility to\n\tgenerate headers from shaders", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Message-Id": "<20250824-b4-v0-5-2-gpuisp-v2-a-v2-18-96f4576c814e@linaro.org>", "References": "<20250824-b4-v0-5-2-gpuisp-v2-a-v2-0-96f4576c814e@linaro.org>", "In-Reply-To": "<20250824-b4-v0-5-2-gpuisp-v2-a-v2-0-96f4576c814e@linaro.org>", "To": "libcamera-devel@lists.libcamera.org", "Cc": "Bryan O'Donoghue <bryan.odonoghue@linaro.org>", "X-Mailer": "b4 0.14.2", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=2872;\n\ti=bryan.odonoghue@linaro.org; h=from:subject:message-id;\n\tbh=CJkgtdapTZZkXVFRMh84rmfBMzP61x7DaVl1inLelEQ=;\n\tb=owEBbQKS/ZANAwAKASJxO7Ohjcg6AcsmYgBoqmFfM1TFO5wMctE9ksyZi787qGq8r9gjAzKst\n\t6E83i2+DnOJAjMEAAEKAB0WIQTmk/sqq6Nt4Rerb7QicTuzoY3IOgUCaKphXwAKCRAicTuzoY3I\n\tOqubD/9zhYvioAS8TFMLmSvMNfqVlL36MxHsc5dZFKxoE/8d/N4gbE5dTx/9dn8FCfLnrGI+1Tp\n\tHNcDz83EGxATBBv2F1VsTtGZ7S49tCh9fE5aqYBMgJ0WKd0oF0VW6QomdranSZ2pFuEuvrXyjAR\n\tBe4SFFu/wQRkaj+U0aCagsSe/exEZO55aPRxhnL0CEGJ6Dqkxi3v/rxi0bZOqcE9Ehtes86XrmD\n\tMWdZu0oCRDSxZI8l3Elo5BoVQ0IYF7McNPbThLlQM1Y7fI2BVgcyXhW4WBPvequvxoqEV2ow8wE\n\tFKzoHZBwHVmCrmYuOs9FsYgDM6temlIEXYRJ9JiqnTqPX6Jc4QdYhLvZEfI6IefrHQ1fYSufpez\n\tNbUnvaRUhNnHDYikOt2VF1ypLv3bfl7WJR4v7hiD/RmWg/DPzp90bxHHK+53PLZkpvqFsBUT0Fy\n\tw/ttqjJ/tMDYqhoIAU7ApkrVp1Tj9NOOcjMDDJEokpqtnR07/xGZUxpiqnJlz/wDcCAgq4pzCnc\n\tGFpNbK76ekmc5FXUxGVL0YPFlukDhGjSYQkGkrRcnZ1otowsJuTFjWkp/ARU+M9+0DWvE1S44qk\n\tXSaVlo7dvQBgOBllnOwGqgP6NYbTtxpgqke1uL/29qZdj7zvFwLOnqJmQpXu6dDNT+VgMCnkIN9\n\tVNKkcneFIvZt9gg==", "X-Developer-Key": "i=bryan.odonoghue@linaro.org; a=openpgp;\n\tfpr=E693FB2AABA36DE117AB6FB422713BB3A18DC83A", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "<libcamera-devel.lists.libcamera.org>", "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>", "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>", "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>", "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>", "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "Two simple script to generate a header that contains GLSL shaders translated\nto C arrays.\n\nSigned-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>\n---\n utils/gen-shader-header.py | 38 ++++++++++++++++++++++++++++++++++++++\n utils/gen-shader-headers.sh | 44 ++++++++++++++++++++++++++++++++++++++++++++\n 2 files changed, 82 insertions(+)", "diff": "diff --git a/utils/gen-shader-header.py b/utils/gen-shader-header.py\nnew file mode 100755\nindex 0000000000000000000000000000000000000000..6668e648f20db39e03a33a8309fb068a5124961b\n--- /dev/null\n+++ b/utils/gen-shader-header.py\n@@ -0,0 +1,38 @@\n+#!/usr/bin/env python3\n+# SPDX-License-Identifier: GPL-2.0-or-later\n+# Copyright (C) 2025, Bryan O'Donoghue.\n+#\n+# Author: Bryan O'Donoghue <bryan.odonoghue@linaro.org>\n+#\n+# A python script which takes a list of shader files and converts into a C\n+# header.\n+#\n+import sys\n+\n+try:\n+ with open(sys.argv[2]) as file:\n+ data = file.read()\n+ data_len = len(data)\n+\n+ name = sys.argv[1].replace(\".\", \"_\")\n+ name_len = name + \"_len\"\n+\n+ j = 0\n+ print(\"unsigned char\", name, \"[] = {\")\n+ for ch in data:\n+ print(f\"0x{ord(ch):02x}, \", end=\"\")\n+ j = j + 1\n+ if j == 16:\n+ print()\n+ j = 0\n+ if j != 0:\n+ print()\n+ print(\"};\")\n+\n+ print()\n+ print(f\"const unsigned int {name_len}={data_len};\")\n+\n+except FileNotFoundError:\n+ print(f\"File {sys.argv[2]} not found\", file=sys.stderr)\n+except IOError:\n+ print(f\"Unable to read {sys.argv[2]}\", file=sys.stderr)\ndiff --git a/utils/gen-shader-headers.sh b/utils/gen-shader-headers.sh\nnew file mode 100755\nindex 0000000000000000000000000000000000000000..ca4f19f07616c97f1d69fad7450c6e63f0e59407\n--- /dev/null\n+++ b/utils/gen-shader-headers.sh\n@@ -0,0 +1,44 @@\n+#!/bin/sh\n+set -x\n+\n+if [ $# -lt 4 ]; then\n+\techo \"Invalid arg count must be >= 5\"\n+\texit 1\n+fi\n+src_dir=\"$1\"; shift\n+build_dir=\"$1\"; shift\n+build_path=$build_dir/\"$1\"; shift\n+\n+cat <<EOF > \"$build_path\"\n+/* SPDX-License-Identifier: LGPL-2.1-or-later */\n+/* This file is auto-generated, do not edit! */\n+/*\n+ * Copyright (C) 2025, Linaro Ltd.\n+ *\n+ */\n+\n+#pragma once\n+\n+EOF\n+\n+cat <<EOF >> \"$build_path\"\n+/*\n+ * List the names of the shaders at the top of\n+ * header for readability's sake\n+ *\n+EOF\n+\n+for file in \"$@\"; do\n+\techo \"file is $file\"\n+\tname=$(basename \"$build_dir/$file\" | tr '.' '_')\n+\techo \" * unsigned char $name;\" >> \"$build_path\"\n+done\n+\n+echo \"*/\" >> \"$build_path\"\n+\n+echo \"/* Hex encoded shader data */\" >> \"$build_path\"\n+for file in \"$@\"; do\n+\tname=$(basename \"$build_dir/$file\")\n+\t\"$src_dir/utils/gen-shader-header.py\" \"$name\" \"$build_dir/$file\" >> \"$build_path\"\n+\techo >> \"$build_path\"\n+done\n", "prefixes": [ "v2", "18/37" ] }