## Copyright 2019 Intel Corporation
## SPDX-License-Identifier: Apache-2.0

#
# enabled with ENABLE_TESTING
# run in <hdospray build dir>/testing 
# ctest (-VV for verbose)
# resulting images will be put into generated_images folder
# diff tests compare the generated_images to those in the golden_images folder
#

enable_testing()

include(FetchContent)

if (NOT EXISTS ${CMAKE_CURRENT_BINARY_DIR}/external/shoe)
    FetchContent_Populate(
        shoe
        URL https://devimages-cdn.apple.com/ar/photogrammetry/PegasusTrail.usdz
        URL_HASH SHA256=8550c6ec55da0e2916a523f9a3bccf9302b79cf856fdb48c99b1821c98ffaa94
        SOURCE_DIR external/shoe
        )
endif()

if (NOT EXISTS ${CMAKE_CURRENT_BINARY_DIR}/external/gramophone)
FetchContent_Populate(
    gramophone
    URL https://developer.apple.com/augmented-reality/quick-look/models/gramophone/gramophone.usdz
    URL_HASH SHA256=a1af44c699d2b7549531f69be4593eb80b2fc4f187a53e643d583f07043b6251
    SOURCE_DIR external/gramophone
    )
endif()

if (NOT EXISTS ${CMAKE_CURRENT_BINARY_DIR}/external/toy_biplane)
FetchContent_Populate(
    toy_biplane
    URL https://developer.apple.com/augmented-reality/quick-look/models/biplane/toy_biplane.usdz
    URL_HASH SHA256=d9edf5f4101bb28a96abcbee0c99e56167225d0dc842333e88003ddd59e39cc8
    SOURCE_DIR external/toy_biplane
    )
endif()

if (NOT EXISTS ${CMAKE_CURRENT_BINARY_DIR}/external/kitchen)
FetchContent_Populate(
    kitchen
    URL https://graphics.pixar.com/usd/files/Kitchen_set.zip
    URL_HASH SHA256=413e3b99de635d674815692357382433b5757f52c4fa88576b003acdfaa6ac74
    SOURCE_DIR external/kitchen
    )
endif()

set(IMAGE_GEN_CMD usdrecord)
set(IMAGE_GEN_ARGS --renderer OSPRay --imageWidth 800)

make_directory(testing/generated_images)

function(add_ospray_test name input)
add_test(NAME ${name}
    COMMAND ${IMAGE_GEN_CMD} ${IMAGE_GEN_ARGS} external/${name}/${input} generated_images/${name}.png)
set_property(TEST ${name}
PROPERTY ENVIRONMENT HDOSPRAY_SAMPLES_TO_CONVERGENCE=8)

add_test(NAME ${name}_diff
    COMMAND ${CMAKE_SOURCE_DIR}/scripts/run_ci/compare.sh generated_images/${name}.png golden_images/${name}.png)
set_property(TEST ${name}_diff
PROPERTY ENVIRONMENT HDOSPRAY_SAMPLES_TO_CONVERGENCE=8)
endfunction()

add_ospray_test(shoe model.usdc)
add_ospray_test(gramophone gramophone.usdc)
add_ospray_test(toy_biplane toy_biplane.usdc)
add_ospray_test(kitchen Kitchen_set.usd)