0030691: Data Exchange - implement import of mesh data from files in glTF format

Added RWGltf_CafReader class implementing glTF reader. Added readgltf Draw Harness command for reading glTF files.
2025-09-03 14:10:33 +03:00 · 2019-06-18 19:41:15 +03:00
parent eec6e810f1
commit 0a419c51ed
46 changed files with 4341 additions and 9 deletions
--- a/adm/UDLIST
+++ b/adm/UDLIST
@@ -440,4 +440,5 @@ t TKVCAF
 n XCAFView
 n XCAFNoteObjects
 t TKRWMesh
+n RWGltf
 n RWMesh
--- a/adm/cmake/rapidjson.cmake
+++ b/adm/cmake/rapidjson.cmake
@@ -0,0 +1,86 @@
+# RapidJSON
+
+if (NOT DEFINED INSTALL_RAPIDJSON)
+  set (INSTALL_RAPIDJSON OFF CACHE BOOL "${INSTALL_RAPIDJSON_DESCR}")
+endif()
+
+# RapidJSON directory
+if (NOT DEFINED 3RDPARTY_RAPIDJSON_DIR)
+  set (3RDPARTY_RAPIDJSON_DIR "" CACHE PATH "The directory containing RapidJSON")
+endif()
+
+# search for RapidJSON in user defined directory
+if (3RDPARTY_DIR AND EXISTS "${3RDPARTY_DIR}")
+  if (NOT 3RDPARTY_RAPIDJSON_DIR OR NOT EXISTS "${3RDPARTY_RAPIDJSON_DIR}")
+    FIND_PRODUCT_DIR("${3RDPARTY_DIR}" RapidJSON RAPIDJSON_DIR_NAME)
+    if (RAPIDJSON_DIR_NAME)
+      set (3RDPARTY_RAPIDJSON_DIR "${3RDPARTY_DIR}/${RAPIDJSON_DIR_NAME}" CACHE PATH "The directory containing RapidJSON" FORCE)
+    endif()
+  endif()
+endif()
+
+if (NOT DEFINED 3RDPARTY_RAPIDJSON_INCLUDE_DIR)
+  set (3RDPARTY_RAPIDJSON_INCLUDE_DIR  "" CACHE FILEPATH "The directory containing headers of the RAPIDJSON")
+endif()
+
+if (NOT 3RDPARTY_RAPIDJSON_INCLUDE_DIR OR NOT EXISTS "${3RDPARTY_RAPIDJSON_INCLUDE_DIR}")
+
+  set (HEADER_NAMES rapidjson/rapidjson.h)
+
+  set (3RDPARTY_RAPIDJSON_INCLUDE_DIR "3RDPARTY_RAPIDJSON_INCLUDE_DIR-NOTFOUND" CACHE PATH "the path to RapidJSON header file" FORCE)
+
+  if (3RDPARTY_RAPIDJSON_DIR AND EXISTS "${3RDPARTY_RAPIDJSON_DIR}")
+    find_path (3RDPARTY_RAPIDJSON_INCLUDE_DIR NAMES ${HEADER_NAMES}
+                                              PATHS ${3RDPARTY_RAPIDJSON_DIR}
+                                              PATH_SUFFIXES include rapidjson
+                                              CMAKE_FIND_ROOT_PATH_BOTH
+                                              NO_DEFAULT_PATH)
+  else()
+    find_path (3RDPARTY_RAPIDJSON_INCLUDE_DIR NAMES ${HEADER_NAMES}
+                                              PATH_SUFFIXES include rapidjson
+                                              CMAKE_FIND_ROOT_PATH_BOTH)
+  endif()
+
+  # use default (CMake) RapidJSON search
+  if (NOT 3RDPARTY_RAPIDJSON_INCLUDE_DIR OR NOT EXISTS "${3RDPARTY_RAPIDJSON_INCLUDE_DIR}")
+    if (3RDPARTY_RAPIDJSON_DIR AND EXISTS "${3RDPARTY_RAPIDJSON_DIR}")
+      set (CACHED_RAPIDJSON_DIR $ENV{RapidJSON_DIR})
+      set (ENV{RapidJSON_DIR} "${3RDPARTY_RAPIDJSON_DIR}")
+    endif()
+
+    find_package(RapidJSON QUIET)
+
+    # restore ENV{RapidJSON_DIR}
+    if (3RDPARTY_RAPIDJSON_DIR AND EXISTS "${3RDPARTY_RAPIDJSON_DIR}")
+      set (ENV{RapidJSON_DIR} ${CACHED_RAPIDJSON_DIR})
+    endif()
+
+    if (${RAPIDJSON_FOUND})
+      set (3RDPARTY_RAPIDJSON_INCLUDE_DIR "${RAPIDJSON_INCLUDE_DIR}" CACHE PATH "the path to RapidJSON header file" FORCE)
+      set (3RDPARTY_RAPIDJSON_DIR         "${RAPIDJSON_ROOT_DIR}"    CACHE PATH "The directory containing RapidJSON" FORCE)
+    endif()
+  endif()
+endif()
+
+if (3RDPARTY_RAPIDJSON_INCLUDE_DIR AND EXISTS "${3RDPARTY_RAPIDJSON_INCLUDE_DIR}")
+  list (APPEND 3RDPARTY_INCLUDE_DIRS "${3RDPARTY_RAPIDJSON_INCLUDE_DIR}")
+
+  # Install header files
+  if (INSTALL_RAPIDJSON)
+    file(GLOB RAPIDJSON_SUBDIRS "${3RDPARTY_RAPIDJSON_INCLUDE_DIR}/*")
+    foreach(SUBDIR ${RAPIDJSON_SUBDIRS})
+      if(IS_DIRECTORY "${SUBDIR}")
+        install (DIRECTORY "${SUBDIR}" DESTINATION "${INSTALL_DIR_INCLUDE}")
+      else()
+        install (FILES "${SUBDIR}" DESTINATION "${INSTALL_DIR_INCLUDE}")
+      endif()
+    endforeach()
+  endif()
+else()
+  list (APPEND 3RDPARTY_NOT_INCLUDED 3RDPARTY_RAPIDJSON_INCLUDE_DIR)
+
+  set (3RDPARTY_RAPIDJSON_INCLUDE_DIR "" CACHE PATH "the path to RapidJSON header file" FORCE)
+endif()
+
+# unset all redundant variables
+OCCT_CHECK_AND_UNSET(RapidJSON_DIR)
--- a/adm/cmake/vardescr.cmake
+++ b/adm/cmake/vardescr.cmake
@@ -94,6 +94,7 @@ INSTALL_MESSAGE (INSTALL_EGL              "EGL binaries")
 INSTALL_MESSAGE (INSTALL_GLES2            "OpenGL ES 2.0 binaries")
 INSTALL_MESSAGE (INSTALL_FREETYPE         "FreeType binaries")
 INSTALL_MESSAGE (INSTALL_TBB              "TBB binaries")
+INSTALL_MESSAGE (INSTALL_RAPIDJSON        "RapidJSON header files")
 INSTALL_MESSAGE (INSTALL_TCL              "TCL binaries")
 INSTALL_MESSAGE (INSTALL_TK               "TK binaries")
 INSTALL_MESSAGE (INSTALL_VTK              "VTK binaries ")
@@ -161,6 +162,10 @@ set (USE_FREEIMAGE_DESCR
 "Indicates whether Freeimage product should be used in OCCT visualization
 module for support of popular graphics image formats (PNG, BMP etc)")

+set (USE_RAPIDJSON_DESCR
+"Indicates whether RapidJSON product should be used in OCCT DataExchange
+module for support of JSON-based formats like glTF")
+
 set (USE_EGL_DESCR
 "Indicates whether EGL should be used in OCCT visualization
 module instead of conventional OpenGL context creation APIs")
--- a/adm/genconf.tcl
+++ b/adm/genconf.tcl
@@ -189,6 +189,9 @@ proc wokdep:gui:UpdateList {} {
    }
    wokdep:SearchStandardLibrary  anIncErrs anLib32Errs anLib64Errs anBin32Errs anBin64Errs "liblzma" "lzma.h" "$aCheckLib" {"lzma" "xz"}
  }
+  if { "$::HAVE_RAPIDJSON" == "true" } {
+    wokdep:SearchRapidJson anIncErrs anLib32Errs anLib64Errs anBin32Errs anBin64Errs
+  }

  if { "$::CHECK_QT4" == "true" } {
    wokdep:SearchQt4     anIncErrs anLib32Errs anLib64Errs anBin32Errs anBin64Errs
@@ -456,6 +459,9 @@ ttk::label    .myFrame.myChecks.myZLibLbl       -text "Use zlib"
 checkbutton   .myFrame.myChecks.myLzmaCheck     -offvalue "false" -onvalue "true" -variable HAVE_LIBLZMA   -command wokdep:gui:UpdateList
 ttk::label    .myFrame.myChecks.myLzmaLbl       -text "Use liblzma"

+checkbutton   .myFrame.myChecks.myRapidJsonCheck -offvalue "false" -onvalue "true" -variable HAVE_RAPIDJSON -command wokdep:gui:UpdateList
+ttk::label    .myFrame.myChecks.myRapidJsonLbl   -text "Use RapidJSON"
+
 checkbutton   .myFrame.myChecks.myQt4Check      -offvalue "false" -onvalue "true" -variable CHECK_QT4      -command wokdep:gui:UpdateList
 ttk::label    .myFrame.myChecks.myQt4Lbl        -text "Search Qt4"
 checkbutton   .myFrame.myChecks.myJDKCheck      -offvalue "false" -onvalue "true" -variable CHECK_JDK      -command wokdep:gui:UpdateList
@@ -564,8 +570,8 @@ if { "$::tcl_platform(os)" != "Darwin" } {
 grid .myFrame.myChecks.myZLibCheck     -row $aCheckRowIter -column 6 -sticky e
 grid .myFrame.myChecks.myZLibLbl       -row $aCheckRowIter -column 7 -sticky w

-grid .myFrame.myChecks.myQt4Check      -row $aCheckRowIter -column 10 -sticky e
-grid .myFrame.myChecks.myQt4Lbl        -row $aCheckRowIter -column 11 -sticky w
+grid .myFrame.myChecks.myQt4Check      -row $aCheckRowIter -column 12 -sticky e
+grid .myFrame.myChecks.myQt4Lbl        -row $aCheckRowIter -column 13 -sticky w

 incr aCheckRowIter
 grid .myFrame.myChecks.myFFmpegCheck   -row $aCheckRowIter -column 0 -sticky e
@@ -578,8 +584,8 @@ if { "$::tcl_platform(platform)" == "windows" } {
 }
 grid .myFrame.myChecks.myLzmaCheck     -row $aCheckRowIter -column 6 -sticky e
 grid .myFrame.myChecks.myLzmaLbl       -row $aCheckRowIter -column 7 -sticky w
-grid .myFrame.myChecks.myJDKCheck      -row $aCheckRowIter -column 10 -sticky e
-grid .myFrame.myChecks.myJDKLbl        -row $aCheckRowIter -column 11 -sticky w
+grid .myFrame.myChecks.myJDKCheck      -row $aCheckRowIter -column 12 -sticky e
+grid .myFrame.myChecks.myJDKLbl        -row $aCheckRowIter -column 13 -sticky w

 incr aCheckRowIter
 if { "$::tcl_platform(os)" == "Darwin" } {
@@ -588,6 +594,10 @@ if { "$::tcl_platform(os)" == "Darwin" } {
  incr aCheckRowIter
 }

+grid .myFrame.myChecks.myRapidJsonCheck -row $aCheckRowIter -column 6 -sticky e
+grid .myFrame.myChecks.myRapidJsonLbl   -row $aCheckRowIter -column 7 -sticky w
+incr aCheckRowIter
+
 # Additional headers search paths
 grid .myFrame.myIncLbl    -row $aRowIter -column 0 -columnspan 10 -sticky w
 incr aRowIter
--- a/adm/genconfdeps.tcl
+++ b/adm/genconfdeps.tcl
@@ -68,7 +68,7 @@ if { [info exists ::env(SHORTCUT_HEADERS)] } {
 }

 # fetch environment variables (e.g. set by custom.sh or custom.bat) and set them as tcl variables with the same name
-set THE_ENV_VARIABLES {HAVE_FREEIMAGE HAVE_FFMPEG HAVE_TBB HAVE_GLES2 HAVE_D3D HAVE_VTK HAVE_ZLIB HAVE_LIBLZMA HAVE_OPENCL CHECK_QT4 CHECK_JDK MACOSX_USE_GLX HAVE_RelWithDebInfo}
+set THE_ENV_VARIABLES {HAVE_FREEIMAGE HAVE_FFMPEG HAVE_TBB HAVE_GLES2 HAVE_D3D HAVE_VTK HAVE_ZLIB HAVE_LIBLZMA HAVE_RAPIDJSON HAVE_OPENCL CHECK_QT4 CHECK_JDK MACOSX_USE_GLX HAVE_RelWithDebInfo}
 foreach anEnvIter $THE_ENV_VARIABLES {
  set ${anEnvIter} "false"
  if { [info exists ::env(${anEnvIter})] } {
@@ -858,6 +858,25 @@ proc wokdep:SearchGLES {theErrInc theErrLib32 theErrLib64 theErrBin32 theErrBin6
  return "$isFound"
 }

+# Search RapidJSON headers
+proc wokdep:SearchRapidJson {theErrInc theErrLib32 theErrLib64 theErrBin32 theErrBin64} {
+  upvar $theErrInc anErrInc
+
+  set isFound "true"
+  set aRJHPath [wokdep:SearchHeader "rapidjson/rapidjson.h"]
+  if { "$aRJHPath"  == "" } {
+    set aPath [wokdep:Preferred [glob -nocomplain -directory "$::PRODUCTS_PATH" -type d *{rapidjson}*] "$::VCVER" "$::ARCH" ]
+    if { "$aPath" != "" && [file exists "$aPath/include/rapidjson/rapidjson.h"] } {
+      lappend ::CSF_OPT_INC "$aPath/include"
+    } else {
+      lappend anErrInc "Error: 'rapidjson/rapidjson.h' not found (RapidJSON)"
+      set isFound "false"
+    }
+  }
+
+  return "$isFound"
+}
+
 # Auxiliary function, gets VTK version to set default search directory
 proc wokdep:VtkVersion { thePath } {
  set aResult "6.1"
--- a/adm/templates/env.bat
+++ b/adm/templates/env.bat
@@ -24,6 +24,7 @@ set "HAVE_GLES2=false"
 set "HAVE_D3D=false"
 set "HAVE_ZLIB=false"
 set "HAVE_LIBLZMA=false"
+set "HAVE_RAPIDJSON=false"
 set "CSF_OPT_INC="
 set "CSF_OPT_LIB32="
 set "CSF_OPT_LIB64="
@@ -163,6 +164,7 @@ if ["%HAVE_GLES2%"]     == ["true"] set "PRODUCTS_DEFINES=%PRODUCTS_DEFINES% -DH
 if ["%HAVE_D3D%"]       == ["true"] set "PRODUCTS_DEFINES=%PRODUCTS_DEFINES% -DHAVE_D3D"       & set "CSF_DEFINES=HAVE_D3D;%CSF_DEFINES%"
 if ["%HAVE_ZLIB%"]      == ["true"] set "PRODUCTS_DEFINES=%PRODUCTS_DEFINES% -DHAVE_ZLIB"      & set "CSF_DEFINES=HAVE_ZLIB;%CSF_DEFINES%"
 if ["%HAVE_LIBLZMA%"]   == ["true"] set "PRODUCTS_DEFINES=%PRODUCTS_DEFINES% -DHAVE_LIBLZMA"   & set "CSF_DEFINES=HAVE_LIBLZMA;%CSF_DEFINES%"
+if ["%HAVE_RAPIDJSON%"] == ["true"] set "PRODUCTS_DEFINES=%PRODUCTS_DEFINES% -DHAVE_RAPIDJSON" & set "CSF_DEFINES=HAVE_RAPIDJSON;%CSF_DEFINES%"

 rem Eliminate VS warning
 if ["%CSF_DEFINES%"]  == [""] set "CSF_DEFINES=;"