mirror of
https://gitlab.freedesktop.org/wlroots/wlroots.git
synced 2025-11-03 09:01:40 -05:00
7cf8e80ffe
udmabuf can create a DMA-BUF backed by a memfd. This is useful when running with a software implementation of GL/Vulkan: the memfd can be passed to the parent compositor via wl_shm and the DMA-BUF can be imported via the usual APIs into GL/Vulkan.
44 lines
1.2 KiB
Meson
44 lines
1.2 KiB
Meson
allocators = get_option('allocators')
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if 'auto' in allocators and get_option('auto_features').enabled()
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allocators = ['gbm', 'udmabuf']
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elif 'auto' in allocators and get_option('auto_features').disabled()
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allocators = []
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endif
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wlr_files += files(
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'allocator.c',
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'shm.c',
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'drm_dumb.c',
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)
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gbm = disabler()
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if 'gbm' in allocators or 'auto' in allocators
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gbm = dependency('gbm', version: '>=17.1.0', required: 'gbm' in allocators)
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endif
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if gbm.found()
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wlr_files += files('gbm.c')
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wlr_deps += gbm
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features += { 'gbm-allocator': true }
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has = cc.has_function('gbm_bo_get_fd_for_plane', dependencies: [gbm])
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internal_config.set10('HAVE_GBM_BO_GET_FD_FOR_PLANE', has)
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endif
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udmabuf = false
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if 'udmabuf' in allocators or 'auto' in allocators
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args = ['-D_GNU_SOURCE']
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prefix = [
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'#include <sys/mman.h>',
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'#include <fcntl.h>',
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]
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udmabuf = (cc.has_function('memfd_create', args: args, prefix: prefix) and
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cc.has_define('F_ADD_SEALS', args: args, prefix: prefix) and
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cc.has_header('linux/udmabuf.h'))
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endif
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if 'udmabuf' in allocators and not udmabuf
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error('memfd_create(), F_ADD_SEALS and <linux/udmabuf.h> are required for the udmabuf allocator')
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endif
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if udmabuf
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wlr_files += files('udmabuf.c')
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features += { 'udmabuf-allocator': true }
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endif
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