From dd391d38f6ef2165bc76a1e69da52e1bd1208e53 Mon Sep 17 00:00:00 2001
From: Brecht Van Lommel <brecht@blender.org>
Date: Wed, 28 Oct 2020 16:19:03 +0100
Subject: Tests: add CMake option to run Cycles regression tests on GPU devices

CYCLES_TEST_DEVICES is a list of devices (CPU, CUDA, OPTIX, OPENCL). It is set
to CPU only by default.

Test output is now writen to build/tests/cycles/<device>, and the HTML report
has separate report pages for the different devices, with option to compare
between CPU and GPU renders.

Various GPU tests are still failing due to CPU/GPU differences, these are to be
fixed or blacklisted still.

Ref T82193
---
 tests/python/CMakeLists.txt | 27 ++++++++++++++++++---------
 1 file changed, 18 insertions(+), 9 deletions(-)

(limited to 'tests/python/CMakeLists.txt')

diff --git a/tests/python/CMakeLists.txt b/tests/python/CMakeLists.txt
index 22426a6d6fc..52dafa83c7a 100644
--- a/tests/python/CMakeLists.txt
+++ b/tests/python/CMakeLists.txt
@@ -598,20 +598,28 @@ if(WITH_CYCLES OR WITH_OPENGL_RENDER_TESTS)
       list(APPEND render_tests grease_pencil)
     endif()
 
+    # Cycles
     if(WITH_CYCLES)
-      foreach(render_test bake;${render_tests})
-        add_python_test(
-          cycles_${render_test}
-          ${CMAKE_CURRENT_LIST_DIR}/cycles_render_tests.py
-          -blender "${TEST_BLENDER_EXE}"
-          -testdir "${TEST_SRC_DIR}/render/${render_test}"
-          -idiff "${OPENIMAGEIO_IDIFF}"
-          -outdir "${TEST_OUT_DIR}/cycles"
-        )
+      foreach(_cycles_device ${CYCLES_TEST_DEVICES})
+        string(TOLOWER "${_cycles_device}" _cycles_device_lower)
+        set(_cycles_render_tests bake;${render_tests})
+
+        foreach(render_test ${_cycles_render_tests})
+          add_python_test(
+            cycles_${render_test}_${_cycles_device_lower}
+            ${CMAKE_CURRENT_LIST_DIR}/cycles_render_tests.py
+            -blender "${TEST_BLENDER_EXE}"
+            -testdir "${TEST_SRC_DIR}/render/${render_test}"
+            -idiff "${OPENIMAGEIO_IDIFF}"
+            -outdir "${TEST_OUT_DIR}/cycles"
+            -device ${_cycles_device}
+          )
+        endforeach()
       endforeach()
     endif()
 
     if(WITH_OPENGL_RENDER_TESTS)
+      # Eevee
       foreach(render_test ${render_tests})
         add_python_test(
           eevee_${render_test}_test
@@ -624,6 +632,7 @@ if(WITH_CYCLES OR WITH_OPENGL_RENDER_TESTS)
       endforeach()
 
       foreach(render_test ${render_tests})
+        # Workbench
         add_python_test(
           workbench_${render_test}_test
           ${CMAKE_CURRENT_LIST_DIR}/workbench_render_tests.py
-- 
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