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{
    "id": 26952,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/26952/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/26952/",
    "project": {
        "id": 1,
        "url": "https://patchwork.libcamera.org/api/1.1/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": "<20260618122245.946138-19-bryan.odonoghue@linaro.org>",
    "date": "2026-06-18T12:22:31",
    "name": "[18/30] libcamera: software_isp: egl: Use Texture Unit 3 for final output texture",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "79ec5972f386cfecf749d11785af3ebc7e550440",
    "submitter": {
        "id": 175,
        "url": "https://patchwork.libcamera.org/api/1.1/people/175/?format=api",
        "name": "Bryan O'Donoghue",
        "email": "bryan.odonoghue@linaro.org"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/26952/mbox/",
    "series": [
        {
            "id": 6005,
            "url": "https://patchwork.libcamera.org/api/1.1/series/6005/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=6005",
            "date": "2026-06-18T12:22:13",
            "name": "RFC/RFT: gpuisp: Multipass with speed optimisations on top",
            "version": 1,
            "mbox": "https://patchwork.libcamera.org/series/6005/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/26952/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/26952/checks/",
    "tags": {},
    "headers": {
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        "From": "Bryan O'Donoghue <bryan.odonoghue@linaro.org>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Cc": "bryan.odonoghue@linaro.org,\n\tpavel@ucw.cz",
        "Subject": "[PATCH 18/30] libcamera: software_isp: egl: Use Texture Unit 3 for\n\tfinal output texture",
        "Date": "Thu, 18 Jun 2026 13:22:31 +0100",
        "Message-ID": "<20260618122245.946138-19-bryan.odonoghue@linaro.org>",
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        "References": "<20260618122245.946138-1-bryan.odonoghue@linaro.org>",
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        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "We will use ping/pong buffers as intermediary steps in the GPUISP pipeline.\nThe last texture should logically be texture unit #3.\n\nTEXTURE0 = Input\nTEXTURE1 = Ping\nTEXTURE2 = Pong\nTEXTURE3 = Output\n\nWe don't have ping/pong yet but in preparation make the small change to\nTEXTURE3 for the existing output framebuffer.\n\nSigned-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>\n---\n src/libcamera/software_isp/software_isp_pipeline_gpu.cpp | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)",
    "diff": "diff --git a/src/libcamera/software_isp/software_isp_pipeline_gpu.cpp b/src/libcamera/software_isp/software_isp_pipeline_gpu.cpp\nindex 8bafd70f8..458b65854 100644\n--- a/src/libcamera/software_isp/software_isp_pipeline_gpu.cpp\n+++ b/src/libcamera/software_isp/software_isp_pipeline_gpu.cpp\n@@ -336,7 +336,7 @@ int SoftwareIspPipelineGpu::start()\n \teglImageBayerIn_ = std::make_unique<eGLImage>(gpuIspShaderPassDemosiac_.glFormat_, inputConfig_.stride / gpuIspShaderPassDemosiac_.getBytesPerPixel(), height_, inputConfig_.stride, GL_TEXTURE0, 0);\n \n \t/* Texture we will render to */\n-\teglImageRGBAOut_ = std::make_unique<eGLImage>(GL_RGBA, outputSize_.width, outputSize_.height, outputConfig_.stride, GL_TEXTURE1, 1);\n+\teglImageRGBAOut_ = std::make_unique<eGLImage>(GL_RGBA, outputSize_.width, outputSize_.height, outputConfig_.stride, GL_TEXTURE3, 3);\n \n \treturn 0;\n }\n",
    "prefixes": [
        "18/30"
    ]
}