[PATCH v9 0/8] Add VirtualPipelineHandler

[Harvey Yang]

Hi all,

This series adds virtual pipeline handler, which doesn't depend on any
hardware, like camera sensor or ISP. Currently the configuration
supports test patterns and images.

It passed the gitlab pipeline:
https://gitlab.freedesktop.org/chenghaoyang/libcamera/-/pipelines/1253511
, with only merge-check warnings remaining.

Update in v9: Allocate contiguous memory for planes in the same
FrameBuffer.

BR,
Harvey

Harvey Yang (4):
  libcamera: add DmaBufAllocator::exportBuffers()
  libcamera: Remove PipelineHandler Fatal check of non-empty
    MediaDevices
  libcamera: pipeline: Add VirtualPipelineHandler
  libcamera: software_isp: Refactor SoftwareIsp to use
    DmaBufAllocator::exportBuffers

Konami Shu (4):
  libcamera: pipeline: Add test pattern for VirtualPipelineHandler
  libcamera: pipeline: Read config and register cameras based on the
    config
  libcamera: pipeline: Shift test pattern by 1 pixel left every frame
  libcamera: pipeline: Load images

 .../libcamera/internal/dma_buf_allocator.h    |  12 +
 meson.build                                   |   1 +
 meson_options.txt                             |   3 +-
 src/libcamera/dma_buf_allocator.cpp           |  64 +++-
 src/libcamera/pipeline/virtual/README.md      |  76 +++++
 .../pipeline/virtual/common_functions.cpp     |  27 ++
 .../pipeline/virtual/common_functions.h       |  18 ++
 .../pipeline/virtual/data/virtual.yaml        |  49 +++
 .../pipeline/virtual/frame_generator.h        |  33 ++
 .../virtual/image_frame_generator.cpp         | 154 ++++++++++
 .../pipeline/virtual/image_frame_generator.h  |  65 ++++
 src/libcamera/pipeline/virtual/meson.build    |  32 ++
 src/libcamera/pipeline/virtual/parser.cpp     | 243 +++++++++++++++
 src/libcamera/pipeline/virtual/parser.h       |  48 +++
 .../virtual/test_pattern_generator.cpp        | 148 +++++++++
 .../pipeline/virtual/test_pattern_generator.h |  58 ++++
 src/libcamera/pipeline/virtual/virtual.cpp    | 287 ++++++++++++++++++
 src/libcamera/pipeline/virtual/virtual.h      |  96 ++++++
 src/libcamera/pipeline_handler.cpp            |  11 +-
 src/libcamera/software_isp/software_isp.cpp   |  20 +-
 20 files changed, 1420 insertions(+), 25 deletions(-)
 create mode 100644 src/libcamera/pipeline/virtual/README.md
 create mode 100644 src/libcamera/pipeline/virtual/common_functions.cpp
 create mode 100644 src/libcamera/pipeline/virtual/common_functions.h
 create mode 100644 src/libcamera/pipeline/virtual/data/virtual.yaml
 create mode 100644 src/libcamera/pipeline/virtual/frame_generator.h
 create mode 100644 src/libcamera/pipeline/virtual/image_frame_generator.cpp
 create mode 100644 src/libcamera/pipeline/virtual/image_frame_generator.h
 create mode 100644 src/libcamera/pipeline/virtual/meson.build
 create mode 100644 src/libcamera/pipeline/virtual/parser.cpp
 create mode 100644 src/libcamera/pipeline/virtual/parser.h
 create mode 100644 src/libcamera/pipeline/virtual/test_pattern_generator.cpp
 create mode 100644 src/libcamera/pipeline/virtual/test_pattern_generator.h
 create mode 100644 src/libcamera/pipeline/virtual/virtual.cpp
 create mode 100644 src/libcamera/pipeline/virtual/virtual.h

-- 
2.46.0.184.g6999bdac58-goog