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vulkan/macos: link directly to MoltenVK

Browse source 
It's currently the only sane way we can use MoltenVK functions to
integrate with Metal API.

It also removes the need to specify the VK_ICD_FILENAMES environment
variable pointing to MoltenVK_icd.json.
This commit is contained in:
Matthew Waters 2019-09-03 00:30:31 +10:00 committed by GStreamer Merge Bot
parent acac78c1ce
commit 1c6f3e4b84
1 changed files with 7 additions and 1 deletions
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8
gst-libs/gst/vulkan/meson.build
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@ -95,7 +95,13 @@ foreach option : vulkan_conf_options
vulkan_conf.set10(option, false)
endforeach
if host_system == 'ios'
if ['ios', 'darwin'].contains(host_system)
# - ios does not support the loader/validation layers
# - We need to link directly to MoltenVK to be able to use
# MoltenVK-specific functions that use dispatchable handles (like
# retrieving the metal device from the VkDevice) which is currently waiting
# on implementing a proper Metal extension for Vulkan
# https://github.com/KhronosGroup/MoltenVK/issues/492
vulkan_dep = cc.find_library('MoltenVK', required : get_option('vulkan'))
elif host_system == 'windows'
vulkan_root = run_command(python3, '-c', 'import os; print(os.environ.get("VK_SDK_PATH"))').stdout().strip()