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[Fix, Test] (MG_IntegrationTest): the harness is surfaceless by construction - never binds a window system, hardware demand split out of REQUIRE_GPU, pre-flight crashes keep their cores

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swung0x48
2026-08-11 00:58:22 -04:00
parent 1c6ca2753f
commit 7ce0966e7d
5 changed files with 99 additions and 29 deletions
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MobileGL/MG_IntegrationTest/CMakeLists.txt
+13 -14
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@@ -169,25 +169,24 @@ endif()
option(MOBILEGL_ITEST_REQUIRE_GPU
"Fail (rather than skip) the integration scenarios when the headless harness is unusable" OFF)
# DirectGLES asks the system EGL for a pbuffer config, and on Mesa the default
# platform is not X11 unless it is said out loud (run_driver_bench.sh sets the
# same variable). Wrong platform here is not a soft failure: eglCreatePbuffer
# fails and every scenario skips.
if (UNIX AND NOT APPLE AND NOT ANDROID)
set(MOBILEGL_ITEST_EGL_PLATFORM "x11" CACHE STRING
"EGL_PLATFORM for the integration tests (empty: leave the loader alone)")
else()
set(MOBILEGL_ITEST_EGL_PLATFORM "" CACHE STRING
"EGL_PLATFORM for the integration tests (empty: leave the loader alone)")
endif()
# No EGL_PLATFORM knob here on purpose. The harness pins EGL_PLATFORM=surfaceless
# itself before its first EGL call (HeadlessGL.cpp, EnsureHeadlessPlatform) so a
# developer's machine and a CI runner take the SAME path whether or not a window
# system happens to be running. This used to inject "x11", which is how the lane
# came up green on a workstation with WSLg and died on a runner with no X server.
#
# A build-system knob would not just be redundant, it would be a trap: `set(...
# CACHE ...)` does not rewrite an existing cache, so every build directory
# configured before this change would keep injecting EGL_PLATFORM=x11 and go on
# binding to a window system - silently, and only on the machines that have one.
# Someone reproducing a platform-specific bug sets EGL_PLATFORM in their own
# environment, which the harness still honours.
set(MGL_ITEST_COMMON_ENV "")
if (MOBILEGL_ITEST_EGL_VENDOR)
list(APPEND MGL_ITEST_COMMON_ENV "__EGL_VENDOR_LIBRARY_FILENAMES=${MOBILEGL_ITEST_EGL_VENDOR}")
endif()
if (MOBILEGL_ITEST_EGL_PLATFORM)
list(APPEND MGL_ITEST_COMMON_ENV "EGL_PLATFORM=${MOBILEGL_ITEST_EGL_PLATFORM}")
endif()
unset(MOBILEGL_ITEST_EGL_PLATFORM CACHE) # see above: an old cache must not resurrect x11
if (MOBILEGL_ITEST_REQUIRE_GPU)
list(APPEND MGL_ITEST_COMMON_ENV "MOBILEGL_ITEST_REQUIRE_GPU=1")
endif()