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{
    "id": 24653,
    "url": "https://patchwork.libcamera.org/api/patches/24653/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/24653/",
    "project": {
        "id": 1,
        "url": "https://patchwork.libcamera.org/api/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": "<20251015012251.17508-9-bryan.odonoghue@linaro.org>",
    "date": "2025-10-15T01:22:20",
    "name": "[v3,08/39] libcamera: swstats_cpu: Add processFrame() method",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "6cc8fb5b6c81fcb664e35787af92d2bc4f14c659",
    "submitter": {
        "id": 175,
        "url": "https://patchwork.libcamera.org/api/people/175/?format=api",
        "name": "Bryan O'Donoghue",
        "email": "bryan.odonoghue@linaro.org"
    },
    "delegate": null,
    "mbox": "https://patchwork.libcamera.org/patch/24653/mbox/",
    "series": [
        {
            "id": 5503,
            "url": "https://patchwork.libcamera.org/api/series/5503/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=5503",
            "date": "2025-10-15T01:22:12",
            "name": "Add GLES 2.0 GPUISP to libcamera",
            "version": 3,
            "mbox": "https://patchwork.libcamera.org/series/5503/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/24653/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/24653/checks/",
    "tags": {},
    "headers": {
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        "From": "Bryan O'Donoghue <bryan.odonoghue@linaro.org>",
        "To": "libcamera-devel@lists.libcamera.org",
        "Cc": "hdegoede@redhat.com, mzamazal@redhat.com, bryan.odonoghue@linaro.org,\n\tbod.linux@nxsw.ie",
        "Subject": "[PATCH v3 08/39] libcamera: swstats_cpu: Add processFrame() method",
        "Date": "Wed, 15 Oct 2025 02:22:20 +0100",
        "Message-ID": "<20251015012251.17508-9-bryan.odonoghue@linaro.org>",
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    },
    "content": "From: Hans de Goede <hdegoede@redhat.com>\n\nAdd a method to the SwstatsCpu class to process a whole Framebuffer in\none go, rather then line by line. This is useful for gathering stats\nwhen debayering is not necessary or is not done on the CPU.\n\nReviewed-by: Milan Zamazal <mzamazal@redhat.com>\nSigned-off-by: Hans de Goede <hdegoede@redhat.com>\n[bod: various rebase spalts fixed]\nSigned-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>\n---\n .../internal/software_isp/swstats_cpu.h       | 15 ++++-\n src/libcamera/software_isp/software_isp.cpp   |  5 +-\n src/libcamera/software_isp/swstats_cpu.cpp    | 55 ++++++++++++++++++-\n 3 files changed, 70 insertions(+), 5 deletions(-)",
    "diff": "diff --git a/include/libcamera/internal/software_isp/swstats_cpu.h b/include/libcamera/internal/software_isp/swstats_cpu.h\nindex fae575f8..64b3e23f 100644\n--- a/include/libcamera/internal/software_isp/swstats_cpu.h\n+++ b/include/libcamera/internal/software_isp/swstats_cpu.h\n@@ -18,18 +18,23 @@\n #include <libcamera/geometry.h>\n \n #include \"libcamera/internal/bayer_format.h\"\n+#include \"libcamera/internal/framebuffer.h\"\n+#include \"libcamera/internal/global_configuration.h\"\n #include \"libcamera/internal/shared_mem_object.h\"\n #include \"libcamera/internal/software_isp/swisp_stats.h\"\n \n+#include \"benchmark.h\"\n+\n namespace libcamera {\n \n class PixelFormat;\n+class MappedFrameBuffer;\n struct StreamConfiguration;\n \n class SwStatsCpu\n {\n public:\n-\tSwStatsCpu();\n+\tSwStatsCpu(const GlobalConfiguration &configuration);\n \t~SwStatsCpu() = default;\n \n \t/*\n@@ -50,6 +55,7 @@ public:\n \tvoid setWindow(const Rectangle &window);\n \tvoid startFrame(uint32_t frame);\n \tvoid finishFrame(uint32_t frame, uint32_t bufferId);\n+\tvoid processFrame(uint32_t frame, uint32_t bufferId, FrameBuffer *input);\n \n \tvoid processLine0(uint32_t frame, unsigned int y, const uint8_t *src[])\n \t{\n@@ -79,6 +85,7 @@ public:\n \n private:\n \tusing statsProcessFn = void (SwStatsCpu::*)(const uint8_t *src[]);\n+\tusing processFrameFn = void (SwStatsCpu::*)(MappedFrameBuffer &in);\n \n \tint setupStandardBayerOrder(BayerFormat::Order order);\n \t/* Bayer 8 bpp unpacked */\n@@ -91,6 +98,10 @@ private:\n \tvoid statsBGGR10PLine0(const uint8_t *src[]);\n \tvoid statsGBRG10PLine0(const uint8_t *src[]);\n \n+\tvoid processBayerFrame2(MappedFrameBuffer &in);\n+\n+\tprocessFrameFn processFrame_;\n+\n \t/* Variables set by configure(), used every line */\n \tstatsProcessFn stats0_;\n \tstatsProcessFn stats2_;\n@@ -103,9 +114,11 @@ private:\n \tSize patternSize_;\n \n \tunsigned int xShift_;\n+\tunsigned int stride_;\n \n \tSharedMemObject<SwIspStats> sharedStats_;\n \tSwIspStats stats_;\n+\tBenchmark bench_;\n };\n \n } /* namespace libcamera */\ndiff --git a/src/libcamera/software_isp/software_isp.cpp b/src/libcamera/software_isp/software_isp.cpp\nindex b7651b7d..6f1f88fe 100644\n--- a/src/libcamera/software_isp/software_isp.cpp\n+++ b/src/libcamera/software_isp/software_isp.cpp\n@@ -107,14 +107,15 @@ SoftwareIsp::SoftwareIsp(PipelineHandler *pipe, const CameraSensor *sensor,\n \t\treturn;\n \t}\n \n-\tauto stats = std::make_unique<SwStatsCpu>();\n+\tconst GlobalConfiguration &configuration = pipe->cameraManager()->_d()->configuration();\n+\n+\tauto stats = std::make_unique<SwStatsCpu>(configuration);\n \tif (!stats->isValid()) {\n \t\tLOG(SoftwareIsp, Error) << \"Failed to create SwStatsCpu object\";\n \t\treturn;\n \t}\n \tstats->statsReady.connect(this, &SoftwareIsp::statsReady);\n \n-\tconst GlobalConfiguration &configuration = pipe->cameraManager()->_d()->configuration();\n \tdebayer_ = std::make_unique<DebayerCpu>(std::move(stats), configuration);\n \tdebayer_->inputBufferReady.connect(this, &SoftwareIsp::inputReady);\n \tdebayer_->outputBufferReady.connect(this, &SoftwareIsp::outputReady);\ndiff --git a/src/libcamera/software_isp/swstats_cpu.cpp b/src/libcamera/software_isp/swstats_cpu.cpp\nindex 55e764b0..48d12c51 100644\n--- a/src/libcamera/software_isp/swstats_cpu.cpp\n+++ b/src/libcamera/software_isp/swstats_cpu.cpp\n@@ -16,6 +16,7 @@\n #include <libcamera/stream.h>\n \n #include \"libcamera/internal/bayer_format.h\"\n+#include \"libcamera/internal/mapped_framebuffer.h\"\n \n namespace libcamera {\n \n@@ -144,8 +145,8 @@ namespace libcamera {\n \n LOG_DEFINE_CATEGORY(SwStatsCpu)\n \n-SwStatsCpu::SwStatsCpu()\n-\t: sharedStats_(\"softIsp_stats\")\n+SwStatsCpu::SwStatsCpu(const GlobalConfiguration &configuration)\n+\t: sharedStats_(\"softIsp_stats\"), bench_(configuration)\n {\n \tif (!sharedStats_)\n \t\tLOG(SwStatsCpu, Error)\n@@ -386,11 +387,14 @@ int SwStatsCpu::setupStandardBayerOrder(BayerFormat::Order order)\n  */\n int SwStatsCpu::configure(const StreamConfiguration &inputCfg)\n {\n+\tstride_ = inputCfg.stride;\n+\n \tBayerFormat bayerFormat =\n \t\tBayerFormat::fromPixelFormat(inputCfg.pixelFormat);\n \n \tif (bayerFormat.packing == BayerFormat::Packing::None &&\n \t    setupStandardBayerOrder(bayerFormat.order) == 0) {\n+\t\tprocessFrame_ = &SwStatsCpu::processBayerFrame2;\n \t\tswitch (bayerFormat.bitDepth) {\n \t\tcase 8:\n \t\t\tstats0_ = &SwStatsCpu::statsBGGR8Line0;\n@@ -411,6 +415,7 @@ int SwStatsCpu::configure(const StreamConfiguration &inputCfg)\n \t\t/* Skip every 3th and 4th line, sample every other 2x2 block */\n \t\tySkipMask_ = 0x02;\n \t\txShift_ = 0;\n+\t\tprocessFrame_ = &SwStatsCpu::processBayerFrame2;\n \n \t\tswitch (bayerFormat.order) {\n \t\tcase BayerFormat::BGGR:\n@@ -475,4 +480,50 @@ void SwStatsCpu::setWindow(const Rectangle &window)\n \twindow_.height &= ~(patternSize_.height - 1);\n }\n \n+void SwStatsCpu::processBayerFrame2(MappedFrameBuffer &in)\n+{\n+\tconst uint8_t *src = in.planes()[0].data();\n+\tconst uint8_t *linePointers[3];\n+\n+\t/* Adjust src for starting at window_.y */\n+\tsrc += window_.y * stride_;\n+\n+\tfor (unsigned int y = 0; y < window_.height; y += 2) {\n+\t\tif (y & ySkipMask_) {\n+\t\t\tsrc += stride_ * 2;\n+\t\t\tcontinue;\n+\t\t}\n+\n+\t\t/* linePointers[0] is not used by any stats0_ functions */\n+\t\tlinePointers[1] = src;\n+\t\tlinePointers[2] = src + stride_;\n+\t\t(this->*stats0_)(linePointers);\n+\t\tsrc += stride_ * 2;\n+\t}\n+}\n+\n+/**\n+ * \\brief Calculate statistics for a frame in one go\n+ * \\param[in] frame The frame number\n+ * \\param[in] bufferId ID of the statistics buffer\n+ * \\param[in] input The frame to process\n+ *\n+ * This may only be called after a successful setWindow() call.\n+ */\n+void SwStatsCpu::processFrame(uint32_t frame, uint32_t bufferId, FrameBuffer *input)\n+{\n+\tbench_.startFrame();\n+\tstartFrame(frame);\n+\n+\tMappedFrameBuffer in(input, MappedFrameBuffer::MapFlag::Read);\n+\tif (!in.isValid()) {\n+\t\tLOG(SwStatsCpu, Error) << \"mmap-ing buffer(s) failed\";\n+\t\treturn;\n+\t}\n+\n+\t(this->*processFrame_)(in);\n+\tfinishFrame(frame, bufferId);\n+\tbench_.finishFrame();\n+}\n+\n } /* namespace libcamera */\n",
    "prefixes": [
        "v3",
        "08/39"
    ]
}