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[153.246.134.249]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c0c26eb0f6bsm3317282a12.14.2025.12.11.16.33.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Dec 2025 16:33:43 -0800 (PST) From: Bryan O'Donoghue To: libcamera-devel@lists.libcamera.org Cc: pavel@ucw.cz, Bryan O'Donoghue , Milan Zamazal , Kieran Bingham Subject: [PATCH v8 07/26] libcamera: shaders: Extend bayer shaders to support swapping R and B on output Date: Fri, 12 Dec 2025 00:29:18 +0000 Message-ID: <20251212002937.3118-8-bryan.odonoghue@linaro.org> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251212002937.3118-1-bryan.odonoghue@linaro.org> References: <20251212002937.3118-1-bryan.odonoghue@linaro.org> MIME-Version: 1.0 X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libcamera-devel-bounces@lists.libcamera.org Sender: "libcamera-devel" We can easily facilitate swapping R and B on output. Pivot on an environment define for this purpose. Reviewed-by: Milan Zamazal Acked-by: Kieran Bingham Signed-off-by: Bryan O'Donoghue --- src/libcamera/shaders/bayer_1x_packed.frag | 4 ++++ src/libcamera/shaders/bayer_unpacked.frag | 6 +++++- 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/src/libcamera/shaders/bayer_1x_packed.frag b/src/libcamera/shaders/bayer_1x_packed.frag index 171a928c2..db8c2a0b3 100644 --- a/src/libcamera/shaders/bayer_1x_packed.frag +++ b/src/libcamera/shaders/bayer_1x_packed.frag @@ -257,5 +257,9 @@ void main(void) rgb.g = (rin * ccm[1][0]) + (gin * ccm[1][1]) + (bin * ccm[1][2]); rgb.b = (rin * ccm[2][0]) + (gin * ccm[2][1]) + (bin * ccm[2][2]); +#if defined (SWAP_BLUE) + gl_FragColor = vec4(rgb.bgr, 1.0); +#else gl_FragColor = vec4(rgb, 1.0); +#endif } diff --git a/src/libcamera/shaders/bayer_unpacked.frag b/src/libcamera/shaders/bayer_unpacked.frag index c41d72f4f..06d80f3dd 100644 --- a/src/libcamera/shaders/bayer_unpacked.frag +++ b/src/libcamera/shaders/bayer_unpacked.frag @@ -152,5 +152,9 @@ void main(void) { rgb.g = (rin * ccm[1][0]) + (gin * ccm[1][1]) + (bin * ccm[1][2]); rgb.b = (rin * ccm[2][0]) + (gin * ccm[2][1]) + (bin * ccm[2][2]); - gl_FragColor.rgb = rgb; +#if defined (SWAP_BLUE) + gl_FragColor = vec4(rgb.bgr, 1.0); +#else + gl_FragColor = vec4(rgb, 1.0); +#endif }