{"id":23236,"url":"https://patchwork.libcamera.org/api/1.1/patches/23236/?format=json","web_url":"https://patchwork.libcamera.org/patch/23236/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/1.1/projects/1/?format=json","name":"libcamera","link_name":"libcamera","list_id":"libcamera_core","list_email":"libcamera-devel@lists.libcamera.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20250422215920.4297-24-bryan.odonoghue@linaro.org>","date":"2025-04-22T21:59:16","name":"[23/27] libcamera: shaders: Use highp not mediump for float precision","commit_ref":null,"pull_url":null,"state":"rfc","archived":false,"hash":"6439446f42d55daa7cb56a7cfadfc73db1847b48","submitter":{"id":175,"url":"https://patchwork.libcamera.org/api/1.1/people/175/?format=json","name":"Bryan O'Donoghue","email":"bryan.odonoghue@linaro.org"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/23236/mbox/","series":[{"id":5142,"url":"https://patchwork.libcamera.org/api/1.1/series/5142/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=5142","date":"2025-04-22T21:58:53","name":"RFC: Add in a eGL based GPUISP in libcamera","version":1,"mbox":"https://patchwork.libcamera.org/series/5142/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/23236/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/23236/checks/","tags":{},"headers":{"Return-Path":"","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 DC075C32A2\n\tfor ;\n\tTue, 22 Apr 2025 22:00:07 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id D525868B36;\n\tWed, 23 Apr 2025 00:00:06 +0200 (CEST)","from mail-wm1-x32b.google.com (mail-wm1-x32b.google.com\n\t[IPv6:2a00:1450:4864:20::32b])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id C779268B40\n\tfor ;\n\tTue, 22 Apr 2025 23:59:45 +0200 (CEST)","by mail-wm1-x32b.google.com with SMTP id\n\t5b1f17b1804b1-43cf257158fso37902725e9.2\n\tfor ;\n\tTue, 22 Apr 2025 14:59:45 -0700 (PDT)","from inspiron14p-linux.ht.home (188-141-3-146.dynamic.upc.ie.\n\t[188.141.3.146]) by smtp.gmail.com with ESMTPSA id\n\t5b1f17b1804b1-44092d2eccesm2726615e9.20.2025.04.22.14.59.44\n\t(version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n\tTue, 22 Apr 2025 14:59:44 -0700 (PDT)"],"Authentication-Results":"lancelot.ideasonboard.com; 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\n\tTue, 22 Apr 2025 14:59:45 -0700 (PDT)","From":"Bryan O'Donoghue ","To":"libcamera-devel@lists.libcamera.org","Cc":"hdegoede@redhat.com, mzamazal@redhat.com, bryan.odonoghue@linaro.org,\n\tbod.linux@nxsw.ie","Subject":"[PATCH 23/27] libcamera: shaders: Use highp not mediump for float\n\tprecision","Date":"Tue, 22 Apr 2025 22:59:16 +0100","Message-ID":"<20250422215920.4297-24-bryan.odonoghue@linaro.org>","X-Mailer":"git-send-email 2.49.0","In-Reply-To":"<20250422215920.4297-1-bryan.odonoghue@linaro.org>","References":"<20250422215920.4297-1-bryan.odonoghue@linaro.org>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "},"content":"We get better sample resolution with highp instead of mediump.\n\nSigned-off-by: Bryan O'Donoghue \n---\n src/apps/qcam/assets/shader/RGB.frag | 2 +-\n src/apps/qcam/assets/shader/YUV_2_planes.frag | 2 +-\n src/apps/qcam/assets/shader/YUV_3_planes.frag | 2 +-\n src/apps/qcam/assets/shader/YUV_packed.frag | 2 +-\n src/apps/qcam/assets/shader/bayer_1x_packed.frag | 2 +-\n src/apps/qcam/assets/shader/bayer_8.frag | 2 +-\n 6 files changed, 6 insertions(+), 6 deletions(-)","diff":"diff --git a/src/apps/qcam/assets/shader/RGB.frag b/src/apps/qcam/assets/shader/RGB.frag\nindex 4c374ac9..72439589 100644\n--- a/src/apps/qcam/assets/shader/RGB.frag\n+++ b/src/apps/qcam/assets/shader/RGB.frag\n@@ -6,7 +6,7 @@\n */\n \n #ifdef GL_ES\n-precision mediump float;\n+precision highp float;\n #endif\n \n varying vec2 textureOut;\ndiff --git a/src/apps/qcam/assets/shader/YUV_2_planes.frag b/src/apps/qcam/assets/shader/YUV_2_planes.frag\nindex 1d5d1206..d286f117 100644\n--- a/src/apps/qcam/assets/shader/YUV_2_planes.frag\n+++ b/src/apps/qcam/assets/shader/YUV_2_planes.frag\n@@ -6,7 +6,7 @@\n */\n \n #ifdef GL_ES\n-precision mediump float;\n+precision highp float;\n #endif\n \n varying vec2 textureOut;\ndiff --git a/src/apps/qcam/assets/shader/YUV_3_planes.frag b/src/apps/qcam/assets/shader/YUV_3_planes.frag\nindex 8f788e90..8e3e0b4a 100644\n--- a/src/apps/qcam/assets/shader/YUV_3_planes.frag\n+++ b/src/apps/qcam/assets/shader/YUV_3_planes.frag\n@@ -6,7 +6,7 @@\n */\n \n #ifdef GL_ES\n-precision mediump float;\n+precision highp float;\n #endif\n \n varying vec2 textureOut;\ndiff --git a/src/apps/qcam/assets/shader/YUV_packed.frag b/src/apps/qcam/assets/shader/YUV_packed.frag\nindex b9ef9d41..3c9e3e39 100644\n--- a/src/apps/qcam/assets/shader/YUV_packed.frag\n+++ b/src/apps/qcam/assets/shader/YUV_packed.frag\n@@ -6,7 +6,7 @@\n */\n \n #ifdef GL_ES\n-precision mediump float;\n+precision highp float;\n #endif\n \n varying vec2 textureOut;\ndiff --git a/src/apps/qcam/assets/shader/bayer_1x_packed.frag b/src/apps/qcam/assets/shader/bayer_1x_packed.frag\nindex f53f5575..19b13ad0 100644\n--- a/src/apps/qcam/assets/shader/bayer_1x_packed.frag\n+++ b/src/apps/qcam/assets/shader/bayer_1x_packed.frag\n@@ -20,7 +20,7 @@\n */\n \n #ifdef GL_ES\n-precision mediump float;\n+precision highp float;\n #endif\n \n /*\ndiff --git a/src/apps/qcam/assets/shader/bayer_8.frag b/src/apps/qcam/assets/shader/bayer_8.frag\nindex 7e35ca88..aa7a1b00 100644\n--- a/src/apps/qcam/assets/shader/bayer_8.frag\n+++ b/src/apps/qcam/assets/shader/bayer_8.frag\n@@ -16,7 +16,7 @@ Copyright (C) 2021, Linaro\n \n //Pixel Shader\n #ifdef GL_ES\n-precision mediump float;\n+precision highp float;\n #endif\n \n /** Monochrome RGBA or GL_LUMINANCE Bayer encoded texture.*/\n","prefixes":["23/27"]}