inital implementation of local COPC reading

qgis · Mar 31, 2022 · cc9f5fb · cc9f5fb
1 parent 995c290
commit cc9f5fb
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Showing 17 changed files with 1,254 additions and 2 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -286,6 +286,8 @@ if(WITH_CORE)
 
   set (WITH_EPT TRUE CACHE BOOL "Determines whether Entwine Point Cloud (EPT) support should be built")
 
+  set (WITH_COPC TRUE CACHE BOOL "Determines whether Cloud Optimized Point Cloud (COPC) support should be built")
+
   set (WITH_THREAD_LOCAL TRUE CACHE BOOL "Determines whether std::thread_local should be used")
   mark_as_advanced(WITH_THREAD_LOCAL)
 
@@ -418,6 +420,15 @@ if(WITH_CORE)
     set(HAVE_EPT TRUE)  # used in qgsconfig.h
   endif()
 
+  if (WITH_COPC)  # COPC provider
+    find_package(ZSTD REQUIRED) # for decompression of point clouds
+    find_package(LazPerf) # for decompression of point clouds
+    if (NOT LazPerf_FOUND)
+      message(STATUS "Using embedded laz-perf")
+    endif()
+    set(HAVE_COPC TRUE)  # used in qgsconfig.h
+  endif()
+
   if (WITH_PDAL)
     if (NOT WITH_EPT)
       message(FATAL_ERROR "PDAL provider cannot be built with EPT disabled")

diff --git a/cmake_templates/qgsconfig.h.in b/cmake_templates/qgsconfig.h.in
@@ -98,6 +98,8 @@
 
 #cmakedefine HAVE_EPT
 
+#cmakedefine HAVE_COPC
+
 #cmakedefine HAVE_PDAL_QGIS
 #define PDAL_VERSION "${PDAL_VERSION}"
 #define PDAL_VERSION_MAJOR_INT ${PDAL_VERSION_MAJOR}

diff --git a/src/core/CMakeLists.txt b/src/core/CMakeLists.txt
@@ -1973,6 +1973,55 @@ if (WITH_EPT)
   add_definitions( -DWITH_EPT )
 endif()
 
+if (WITH_COPC)
+  include_directories(providers/copc)
+
+  include_directories(SYSTEM
+    ${ZSTD_INCLUDE_DIR}
+  )
+
+  if (LazPerf_FOUND)
+    # Use system laz-perf
+    include_directories(SYSTEM
+      ${LazPerf_INCLUDE_DIR}
+    )
+  else()
+    # Use embedded laz-perf from external/laz-perf
+    include_directories(SYSTEM
+    )
+
+    set(QGIS_CORE_SRCS ${QGIS_CORE_SRCS}
+      ${CMAKE_SOURCE_DIR}/external/lazperf/charbuf.cpp
+      ${CMAKE_SOURCE_DIR}/external/lazperf/filestream.cpp
+      ${CMAKE_SOURCE_DIR}/external/lazperf/header.cpp
+      ${CMAKE_SOURCE_DIR}/external/lazperf/lazperf.cpp
+      ${CMAKE_SOURCE_DIR}/external/lazperf/readers.cpp
+      ${CMAKE_SOURCE_DIR}/external/lazperf/vlr.cpp
+      ${CMAKE_SOURCE_DIR}/external/lazperf/detail/field_byte10.cpp
+      ${CMAKE_SOURCE_DIR}/external/lazperf/detail/field_byte14.cpp
+      ${CMAKE_SOURCE_DIR}/external/lazperf/detail/field_gpstime10.cpp
+      ${CMAKE_SOURCE_DIR}/external/lazperf/detail/field_nir14.cpp
+      ${CMAKE_SOURCE_DIR}/external/lazperf/detail/field_point10.cpp
+      ${CMAKE_SOURCE_DIR}/external/lazperf/detail/field_point14.cpp
+      ${CMAKE_SOURCE_DIR}/external/lazperf/detail/field_rgb10.cpp
+      ${CMAKE_SOURCE_DIR}/external/lazperf/detail/field_rgb14.cpp
+    )
+  endif()
+
+  set(QGIS_CORE_SRCS ${QGIS_CORE_SRCS}
+      providers/copc/qgscopcprovider.cpp
+      pointcloud/qgseptdecoder.cpp
+      pointcloud/qgscopcpointcloudindex.cpp
+  )
+  set(QGIS_CORE_HDRS ${QGIS_CORE_HDRS}
+      providers/copc/qgscopcprovider.h
+      pointcloud/qgseptdecoder.h
+      pointcloud/qgscopcpointcloudindex.h
+  )
+
+  add_definitions( -DWITH_COPC )
+endif()
+
 if (APPLE)
   # Libtasn1 is for DER-encoded PKI ASN.1 parsing/extracting workarounds
   include_directories(SYSTEM
@@ -2109,6 +2158,11 @@ if (WITH_EPT)
     ${CMAKE_SOURCE_DIR}/src/core/providers/ept)
 endif()
 
+if (WITH_COPC)
+  target_include_directories(qgis_core PUBLIC
+    ${CMAKE_SOURCE_DIR}/src/core/providers/copc)
+endif()
+
 GENERATE_EXPORT_HEADER(
   qgis_core
   BASE_NAME CORE
@@ -2229,6 +2283,15 @@ if (WITH_EPT)
   endif()
 endif()
 
+if (WITH_COPC)
+  target_link_libraries(qgis_core
+    ${ZSTD_LIBRARY}
+  )
+  if (LazPerf_FOUND)
+    target_link_libraries(qgis_core ${LazPerf_LIBRARY})
+  endif()
+endif()
+
 if (WITH_PDAL)
   target_link_libraries(qgis_core
     ${PDAL_LIBRARIES}