installation failure on ubuntu

[Conan42]

Hello,

I'm doing some research on Rocky, notably trying to install it on Ubuntu and I can't. But I copied the src/rocky source directory to put it in a CLion project called vsgTerra organized like this:

vsgTerra :

cmake-build-debug/
    cache/...
    shaders/...

rocky/
    contrib/...
    vsg/...
    ...

TileDatabase.cpp
TileDatabase.h
TileReader.cpp
TileReader.h
vsgpagedlod.cpp

the root cmake:

cmake_minimum_required(VERSION 3.28)
project(vsgTerra)

set(CMAKE_CXX_STANDARD 17)

include_directories (${CMAKE_SOURCE_DIR})

find_package(vsg CONFIG REQUIRED)
if(vsg_FOUND)
    message("vsg find!")
else()
    message(FATAL_ERROR "vsg not find!")
endif()

find_package(vsgXchange CONFIG REQUIRED)
if(vsgXchange_FOUND)
    message("vsgXchange find!")
else()
    message(FATAL_ERROR "vsgXchange not find!")
endif()

add_subdirectory(rocky)

file(GLOB SCR_FILES *.c *cpp *.hpp *.h)

add_executable(vsgTerra ${SCR_FILES})

target_link_libraries(vsgTerra vsg::vsg vsgXchange::vsgXchange librocky )

rocky's cmake :

cmake_minimum_required(VERSION 3.28)
project(librocky)

# Create a "Version.h" header that automatically reflects the
# version variables found in the CMake configuration.
set(version_h ${CMAKE_SOURCE_DIR}/rocky/Version.h)
configure_file(Version.h.in ${version_h})

find_package(unofficial-sqlite3 REQUIRED)
if(unofficial-sqlite3_FOUND)
    message("unofficial-sqlite3 find!")
else()
    message(FATAL_ERROR "unofficial-sqlite3 not find!")
endif()

find_package(TinyXML CONFIG REQUIRED)
if(TinyXML_FOUND)
    message("TinyXML find!")
else()
    message(FATAL_ERROR "TinyXML not find!")
endif()

find_package(TIFF REQUIRED)
if(TIFF_FOUND)
    message("TIFF find!")
else()
    message(FATAL_ERROR "TIFF not find!")
endif()

find_package(glslang CONFIG REQUIRED)
if(glslang_FOUND)
    message("glslang find!")
else()
    message(FATAL_ERROR "glslang not find!")
endif()

find_package(EnTT CONFIG REQUIRED)
if(EnTT_FOUND)
    message("EnTT find!")
else()
    message(FATAL_ERROR "EnTT not findé!")
endif()

find_package(glm CONFIG REQUIRED)
if(glm_FOUND)
    message("glm find!")
else()
    message(FATAL_ERROR "glm not find!")
endif()

find_package(PROJ CONFIG REQUIRED)
if(PROJ_FOUND)
    message("PROJ trouvé!")
else()
    message(FATAL_ERROR "PROJ pas trouvé!")
endif()

find_package(ZLIB REQUIRED)
if(ZLIB_FOUND)
    message("ZLIB find!")
else()
    message(FATAL_ERROR "ZLIB not find!")
endif()

find_package(nlohmann_json CONFIG REQUIRED)
if(nlohmann_json_FOUND)
    message("nlohmann_json find!")
else()
    message(FATAL_ERROR "nlohmann_json not find!")
endif()

find_package(GDAL CONFIG REQUIRED)
if(GDAL_FOUND)
    message("GDAL find!")
else()
    message(FATAL_ERROR "GDAL not find!")
endif()

find_package(OpenSSL CONFIG REQUIRED)
if(OpenSSL_FOUND)
    message("OpenSSL find!")
else()
    message(FATAL_ERROR "OpenSSL not find!")
endif()

find_package(spdlog CONFIG REQUIRED)
if(spdlog_FOUND)
    message("spdlog find!")
else()
    message(FATAL_ERROR "spdlog not find!")
endif()

find_package(Threads REQUIRED)
if(Threads_FOUND)
    message("Threads find!")
else()
    message(FATAL_ERROR "Threads not find!")
endif()

file(GLOB_RECURSE SOURCES *c *cpp)
file(GLOB_RECURSE HEADERS *h *hpp vsg/shaders/*)

add_library(librocky ${SOURCES} ${HEADERS})
target_link_libraries(librocky vsg::vsg vsgXchange::vsgXchange unofficial-sqlite3 TinyXML glslang::glslang EnTT::EnTT PROJ nlohmann_json::nlohmann_json GDAL::GDAL OpenSSL Threads::Threads)

I have compilation errors at 86%:

/home/mich/CLionProjects/vsgTerra/rocky/vsg/engine/IconSystem.cpp:140:26: error: cannot bind non-const lvalue reference of type ‘vsg::Visitor&’ to an rvalue of type ‘vsg::Visitor’  140 |         c.config->accept(SetPipelineStates(feature_mask));

/home/mich/CLionProjects/vsgTerra/rocky/vsg/engine/LineSystem.cpp:134:27: error: cannot bind non-const lvalue reference of type ‘vsg::Visitor&’ to an rvalue of type ‘vsg::Visitor’  134 |         c.config->accept( SetPipelineStates(feature_mask) );

/home/mich/CLionProjects/vsgTerra/rocky/vsg/engine/MeshSystem.cpp:151:26: error: cannot bind non-const lvalue reference of type ‘vsg::Visitor&’ to an rvalue of type ‘vsg::Visitor’  151 |         c.config->accept(SetPipelineStates(feature_mask));

It looks like they didn't use your version of vsg. I corrected two includes which were in the wrong place.

Sincerely

Michel Guenin

[gwaldron]

Both the Rocky and the VSG APIs change quite frequently so this is not a buge surprise.
Rocky is tied to a particular version of VSG as it makes its way towards version 1.0. We try to keep it current with the most recent VSG release.

Any reason why you are trying to embed the SDK and not just linking to rocky as an external library...?

[Conan42]

Hi Glenn,

I put vsg 1.0.9 and vsgXchange 1.0.5. all the dependencies are satisfied with the cmake. And yet I have an error:

/home/mich/rocky-main/src/rocky/vsg/engine/IconSystem.cpp:139:26: error: cannot bind non-const lvalue reference of type ‘vsg::Visitor&’ to an rvalue of type ‘vsg::Visitor’
139 | c.config->accept(SetPipelineStates(feature_mask));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /usr/local/include/vsg/nodes/Node.h:16,
from /usr/local/include/vsg/nodes/Group.h:16,
from /usr/local/include/vsg/nodes/CullGroup.h:16,
from /home/mich/rocky-main/src/rocky/vsg/GeoTransform.h:11,
from /home/mich/rocky-main/src/rocky/vsg/ECS.h:8,
from /home/mich/rocky-main/src/rocky/vsg/Icon.h:8,
from /home/mich/rocky-main/src/rocky/vsg/engine/IconSystem.h:7,
from /home/mich/rocky-main/src/rocky/vsg/engine/IconSystem.cpp:7:
/usr/local/include/vsg/core/Inherit.h:70:30: note: initializing argument 1 of ‘void vsg::Inherit<ParentClass, Subclass>::accept(vsg::Visitor&) [with ParentClass = vsg::Object; Subclass = vsg::GraphicsPipelineConfigurator]’
70 | void accept(Visitor& visitor) override { visitor.apply(static_cast<Subclass&>(*this)); }