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{ "id": 24217, "url": "https://patchwork.libcamera.org/api/patches/24217/?format=api", "web_url": "https://patchwork.libcamera.org/patch/24217/", "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-v2-34-96f4576c814e@linaro.org>", "date": "2025-08-24T00:48:46", "name": "[v2,34/37] libcamera: software_isp: GPU support for unpacked 10/12-bit formats", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "74a98ea1f7a8b8a53865fda6e7defcaa9b7eca14", "submitter": { "id": 175, "url":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/24217/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/24217/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/24217/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 EB846C332A\n\tfor <parsemail@patchwork.libcamera.org>;\n\tSun, 24 Aug 2025 00:49:45 +0000 (UTC)", "from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 459FE69340;\n\tSun, 24 Aug 2025 02:49:45 +0200 (CEST)", "from mail-wr1-x42c.google.com (mail-wr1-x42c.google.com\n\t[IPv6:2a00:1450:4864:20::42c])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id F0D1569326\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tSun, 24 Aug 2025 02:49:07 +0200 (CEST)", "by mail-wr1-x42c.google.com with SMTP id\n\tffacd0b85a97d-3c7ba6c2b2cso301099f8f.1\n\tfor <libcamera-devel@lists.libcamera.org>;\n\tSat, 23 Aug 2025 17:49:07 -0700 (PDT)", "from [192.168.0.13] (188-141-3-146.dynamic.upc.ie. 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\n\tSat, 23 Aug 2025 17:49:07 -0700 (PDT)", "From": "Bryan O'Donoghue <bryan.odonoghue@linaro.org>", "Date": "Sun, 24 Aug 2025 01:48:46 +0100", "Subject": "[PATCH v2 34/37] libcamera: software_isp: GPU support for unpacked\n\t10/12-bit formats", "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-v2-34-96f4576c814e@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>, \n\tMilan Zamazal <mzamazal@redhat.com>", "X-Mailer": "b4 0.14.2", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=1983;\n\ti=bryan.odonoghue@linaro.org; h=from:subject:message-id;\n\tbh=nA+2gEBXhbesAcyA55e+vkj/TQlUo/6L5jrjUpeJ3/g=;\n\tb=owEBbQKS/ZANAwAKASJxO7Ohjcg6AcsmYgBoqmFiJ71gXX+WwDBmSTWhQeaF5CcLJSDs/fOXq\n\t/DQ13ML0UKJAjMEAAEKAB0WIQTmk/sqq6Nt4Rerb7QicTuzoY3IOgUCaKphYgAKCRAicTuzoY3I\n\tOg5vD/9PfpFJeUYLqjGDlZlUO5uXDmMqIbgY+HSUZHTiX6wrl6kdVdRLCJBl0+g1f3IB2QRKA2A\n\tx+MEznuY72XjUujgK+ZO1OXGPdaSW90N1zHRgtcEY+KA16EZWeRAKPRxkjfx1sS8N5MiVKgScrq\n\t4avQE9tqr/rsfoQ2Xg213tYNnFb0R882DmfKCCXZlbcaNGN7hdL4ZKbZK4hJXs2yOJZY4dDxLgB\n\tcm+dq3P/J9NtQgpOmo84l/eAKKy3MVQHk/8pQBJ8Z5XC5iYM/JbFrI6Q3kzqMqJKJuJrMrDwweM\n\tvKG3c/OLzj0nPO0Ei0gElCBrZ1ejAQu7m1JZt0GIOqepgWCkpTc3rhmB2coX0BqjnIJaBNI47Y4\n\tz+6HUbBrSXNWrPIfw+z7CU2nXKmmOXfuzt07m0S/CHJo/1B3WhxarqKdMCcqS5+XwMToxSw/v7O\n\tcSiBTmS4vw75Qd84xw3cL/A2UnBFMp2EmBUb0pqDNc+lf43Icd7LdrCIyvLszQwCY6FjEu1inds\n\taYMN/pt/Ve2oQ7mhDGT0RAyBf9T4DCJ6pHsBt1HUPko/7UdvLSkwQvIPWkW0MKDImu3XhKhoiLe\n\tbm0Q8sQ8KX9nu7Ekz1BgPo/jhzPACxiexX6p4DQP8yZ4qxGW2/TEZuiM1ANniKbKIN+lP/YyGT9\n\tM9/f37e72Nl7Uig==", "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": "From: Milan Zamazal <mzamazal@redhat.com>\n\nThe GPU processing supports 8-bit sensor formats and 10/12-bit packed\nformats. Support for 10/12-bit unpacked formats is missing, let's add\nit.\n\n10/12-bit unpacked formats use two adjacent bytes to store the value.\nThis means the 8-bit shaders can be used if we can modify them for\nadditional support of 16-bit addressing. This requires the following\nmodifications:\n\n- Using GL_RG (two bytes per pixel) instead of GL_LUMINANCE (one byte\n per pixel) as the texture format for the given input formats.\n\n- Setting the texture width to the number of pixels rather than the\n number of bytes.\n\n- Making the definition of `fetch' macro variable, according to the\n pixel format.\n\n- Using only `fetch' for accessing the texture.\n\nSigned-off-by: Milan Zamazal <mzamazal@redhat.com>\nSigned-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>\n---\n include/libcamera/internal/shaders/bayer_8.frag | 10 +++++++++-\n 1 file changed, 9 insertions(+), 1 deletion(-)", "diff": "diff --git a/include/libcamera/internal/shaders/bayer_8.frag b/include/libcamera/internal/shaders/bayer_8.frag\nindex 74ce15096ac0b8a221175d111d982d1222b7db38..78c2609c26d115e9d7522cf18a3ebbb7d82a7267 100644\n--- a/include/libcamera/internal/shaders/bayer_8.frag\n+++ b/include/libcamera/internal/shaders/bayer_8.frag\n@@ -32,9 +32,17 @@ uniform mat3\t\tccm;\n void main(void) {\n vec3 rgb;\n \n+ #if defined(RAW10P)\n+ #define pixel(p) p.r / 4.0 + p.g * 64.0\n+ #define fetch(x, y) pixel(texture2D(tex_y, vec2(x, y)))\n+ #elif defined(RAW12P)\n+ #define pixel(p) p.r / 16.0 + p.g * 16.0\n+ #define fetch(x, y) pixel(texture2D(tex_y, vec2(x, y)))\n+ #else\n #define fetch(x, y) texture2D(tex_y, vec2(x, y)).r\n+ #endif\n \n- float C = texture2D(tex_y, center.xy).r; // ( 0, 0)\n+ float C = fetch(center.x, center.y); // ( 0, 0)\n const vec4 kC = vec4( 4.0, 6.0, 5.0, 5.0) / 8.0;\n \n // Determine which of four types of pixels we are on.\n", "prefixes": [ "v2", "34/37" ] }