{"id":26166,"url":"https://patchwork.libcamera.org/api/patches/26166/?format=json","web_url":"https://patchwork.libcamera.org/patch/26166/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/projects/1/?format=json","name":"libcamera","link_name":"libcamera","list_id":"libcamera_core","list_email":"libcamera-devel@lists.libcamera.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260216190204.106922-5-johannes.goede@oss.qualcomm.com>","date":"2026-02-16T19:02:03","name":"[4/5] software_isp: debayer_cpu: Select process inner loop by function pointer","commit_ref":null,"pull_url":null,"state":"superseded","archived":false,"hash":"5ad589b402eae811b0123d5f4ffaa617d99ea2e3","submitter":{"id":242,"url":"https://patchwork.libcamera.org/api/people/242/?format=json","name":"Hans de 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cx=c_pps\n\ta=1Os3MKEOqt8YzSjcPV0cFA==:117 a=xqWC_Br6kY4A:10 a=HzLeVaNsDn8A:10\n\ta=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=Mpw57Om8IfrbqaoTuvik:22\n\ta=GgsMoib0sEa3-_RKJdDe:22 a=EUspDBNiAAAA:8 a=invZXm7wCyodYBJXmhMA:9\n\ta=hhpmQAJR8DioWGSBphRh:22","X-Proofpoint-Virus-Version":"vendor=baseguard\n\tengine=ICAP:2.0.293, Aquarius:18.0.1121, Hydra:6.1.51,\n\tFMLib:17.12.100.49\n\tdefinitions=2026-02-16_06,2026-02-16_04,2025-10-01_01","X-Proofpoint-Spam-Details":"rule=outbound_notspam policy=outbound score=0\n\tmalwarescore=0 spamscore=0 lowpriorityscore=0 impostorscore=0\n\tsuspectscore=0\n\tclxscore=1015 phishscore=0 priorityscore=1501 adultscore=0\n\tbulkscore=0\n\tclassifier=typeunknown authscore=0 authtc= authcc= route=outbound\n\tadjust=0\n\treason=mlx scancount=1 engine=8.22.0-2601150000\n\tdefinitions=main-2602160163","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "},"content":"At a processInner_ function pointer and set this to process2() /\nprocess4() in configure instead of making the choise inline in process().\n\nThis is a preparation patch for making DebayerCpu support multi-threading.\n\nSigned-off-by: Hans de Goede \n---\n src/libcamera/software_isp/debayer_cpu.cpp | 10 ++++++----\n src/libcamera/software_isp/debayer_cpu.h | 4 ++++\n 2 files changed, 10 insertions(+), 4 deletions(-)","diff":"diff --git a/src/libcamera/software_isp/debayer_cpu.cpp b/src/libcamera/software_isp/debayer_cpu.cpp\nindex e1d3c164..5e168554 100644\n--- a/src/libcamera/software_isp/debayer_cpu.cpp\n+++ b/src/libcamera/software_isp/debayer_cpu.cpp\n@@ -437,6 +437,11 @@ int DebayerCpu::setDebayerFunctions(PixelFormat inputFormat,\n \t\treturn invalidFmt();\n \t}\n \n+\tif (inputConfig_.patternSize.height == 2)\n+\t\tprocessInner_ = &DebayerCpu::process2;\n+\telse\n+\t\tprocessInner_ = &DebayerCpu::process4;\n+\n \tif ((bayerFormat.bitDepth == 8 || bayerFormat.bitDepth == 10 || bayerFormat.bitDepth == 12) &&\n \t bayerFormat.packing == BayerFormat::Packing::None &&\n \t isStandardBayerOrder(bayerFormat.order)) {\n@@ -890,10 +895,7 @@ void DebayerCpu::process(uint32_t frame, FrameBuffer *input, FrameBuffer *output\n \n \tthreadData_[0].yStart = 0;\n \tthreadData_[0].yEnd = window_.height;\n-\tif (inputConfig_.patternSize.height == 2)\n-\t\tprocess2(frame, in.planes()[0].data(), out.planes()[0].data(), &threadData_[0]);\n-\telse\n-\t\tprocess4(frame, in.planes()[0].data(), out.planes()[0].data(), &threadData_[0]);\n+\t(this->*processInner_)(frame, in.planes()[0].data(), out.planes()[0].data(), &threadData_[0]);\n \n \tmetadata.planes()[0].bytesused = out.planes()[0].size();\n \ndiff --git a/src/libcamera/software_isp/debayer_cpu.h b/src/libcamera/software_isp/debayer_cpu.h\nindex a54418dc..b85dd11c 100644\n--- a/src/libcamera/software_isp/debayer_cpu.h\n+++ b/src/libcamera/software_isp/debayer_cpu.h\n@@ -87,6 +87,9 @@ private:\n \t\tbool processLastLinesSeperately;\n \t};\n \n+\tusing processFn = void (DebayerCpu::*)(uint32_t frame, const uint8_t *src, uint8_t *dst,\n+\t\t\t\t\t DebayerCpuThreadData *threadData);\n+\n \t/* 8-bit raw bayer format */\n \ttemplate\n \tvoid debayer8_BGBG_BGR888(uint8_t *dst, const uint8_t *src[]);\n@@ -164,6 +167,7 @@ private:\n \tunsigned int threadCount_;\n \tbool ccmEnabled_;\n \tDebayerParams params_;\n+\tprocessFn processInner_;\n };\n \n } /* namespace libcamera */\n","prefixes":["4/5"]}