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# Shaders
gst_vulkan_shader_sources = [
'identity.frag',
'identity.vert',
'swizzle.frag',
'swizzle_and_clobber_alpha.frag',
'yuy2_to_rgb.frag',
'rgb_to_yuy2.frag',
'ayuv_to_rgb.frag',
'rgb_to_ayuv.frag',
'nv12_to_rgb.frag',
'rgb_to_nv12.frag',
'view_convert.frag',
]
bin2array = find_program('bin2array.py')
# FIXME: meson compiler class instead?
glslc_build_options = []
optimization = get_option('optimization')
if get_option('debug')
glslc_build_options += ['-g']
endif
if get_option('werror')
glslc_build_options += ['-Werror']
endif
if optimization == 's'
glslc_build_options += ['-Os']
endif
if optimization in ['1', '2', '3']
glslc_build_options += ['-O']
endif
vulkan_compiled_shader_sources = []
foreach shader: gst_vulkan_shader_sources
basefn = shader.split('.').get(0)
suffix = shader.split('.').get(1)
stage_arg = suffix == 'frag' ? '-fshader-stage=fragment' : '-fshader-stage=vertex'
basename = '@0@.@1@'.format(basefn, suffix)
spv_shader = basename + '.spv'
c_shader_source = basename + '.c'
c_shader_header = basename + '.h'
compiled_shader = custom_target(spv_shader,
input: shader,
output: spv_shader,
depfile: '@PLAINNAME@.d',
command: [glslc] + glslc_build_options + [
stage_arg,
'--target-env=vulkan1.0',
'-MD', '-MF', '@DEPFILE@',
'@INPUT@',
'-o', '@OUTPUT@'
])
c_shader = custom_target (c_shader_source,
input: compiled_shader,
output: [c_shader_source, c_shader_header],
command: [ bin2array,
'--array-name=' + basename.underscorify(),
'--c-include=gst/gst.h',
'--element-type=gchar',
'--element-size=1',
'--linebreak=8',
'--input', '@INPUT@',
'--output', '@OUTPUT0@',
'--header-output', '@OUTPUT1@'])
vulkan_compiled_shader_sources += [c_shader]
endforeach
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