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    "msgid": "<20210622134652.1279260-1-andrey.konovalov@linaro.org>",
    "date": "2021-06-22T13:46:43",
    "name": "[libcamera-devel,v5,0/9] qcam: viewfinder_gl: add RAW8, RAW10P and RAW12P formats",
    "submitter": {
        "id": 25,
        "url": "https://patchwork.libcamera.org/api/people/25/?format=api",
        "name": "Andrey Konovalov",
        "email": "andrey.konovalov@linaro.org"
    },
    "mbox": "https://patchwork.libcamera.org/cover/12684/mbox/",
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            "date": "2021-06-22T13:46:43",
            "name": "qcam: viewfinder_gl: add RAW8, RAW10P and RAW12P formats",
            "version": 5,
            "mbox": "https://patchwork.libcamera.org/series/2168/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/covers/12684/comments/",
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        "From": "Andrey Konovalov <andrey.konovalov@linaro.org>",
        "To": "libcamera-devel@lists.libcamera.org,\n\tlaurent.pinchart@ideasonboard.com",
        "Date": "Tue, 22 Jun 2021 16:46:43 +0300",
        "Message-Id": "<20210622134652.1279260-1-andrey.konovalov@linaro.org>",
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        "MIME-Version": "1.0",
        "Content-Transfer-Encoding": "8bit",
        "Subject": "[libcamera-devel] [PATCH v5 0/9] qcam: viewfinder_gl: add RAW8,\n\tRAW10P and RAW12P formats",
        "X-BeenThere": "libcamera-devel@lists.libcamera.org",
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        "Cc": "morgan@casual-effects.com",
        "Errors-To": "libcamera-devel-bounces@lists.libcamera.org",
        "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>"
    },
    "content": "This patchset adds support for both 10-bit, and 12-bit raw Bayer packed\nand 8-bit raw Bayer formats. GL_RED texture is used to store the image data.\nNot only this allows to use the same shader code in 10-bit and 12-bit cases.\nBut it also turned out that sampling from GL_RED texture is easier (less\n\"patterns\") than from GL_RGB - even though we loose the \"auto-skipping the LS\nbytes of pixel values\" feature in the 12-bit case.\n\nChanges in v5 vs v4 [1]:\n* 8-bit raw Bayer format is back, but it is now split into several patches\n  (4/9 to 8/9) to make it easier to see the particular changes done to\n  the original shader code.\n  With the first 8 of the total 9 patches applied I am seeing some\n  artifacts (note the horizontal colour lines which change when the viewfinder\n  window height is changed) [2].\n  Patch 9/9 fixes that, but the root cause of the issue isn't currently known.\n  That's why 9/9 comes as RFC, and the series can be merged without it.\n* s/tex_raw/tex_y in the shaders to match the uniform name used in the cpp\n  code.\n\n[1] https://patchwork.libcamera.org/cover/12629/\n[2] https://people.linaro.org/~andrey.konovalov/cam-56/20210622.imx219-RAW8-artifacts.viewfinder_gl-add-RAW1xP-and-RAW8-support-v4.1-raw8.0.mp4"
}