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\n\tTue, 22 Jun 2021 06:46:58 -0700 (PDT)", "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>", "X-Mailer": "git-send-email 2.25.1", "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", "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>", "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" }