project('megapixels', 'c', version: '2.0.0')

gnome = import('gnome')
gtkdep = dependency('gtk4')
libfeedback = dependency('libfeedback-0.0')
zbar = dependency('zbar')
jpeg = dependency('libjpeg')
threads = dependency('threads')
# gl = dependency('gl')
epoxy      = dependency('epoxy')

libmp = dependency('libmegapixels')
libdng = dependency('libdng')

# We only build in support for Wayland/X11 if GTK did so
optdeps = []
if gtkdep.get_variable('targets').contains('wayland')
  optdeps += dependency('gtk4-wayland')
  optdeps += dependency('wayland-client')
endif
if gtkdep.get_variable('targets').contains('x11')
  optdeps += dependency('gtk4-x11')
  optdeps += dependency('x11')
  optdeps += dependency('xrandr')
endif

cc = meson.get_compiler('c')
libm = cc.find_library('m', required: false)

subdir('data')

conf = configuration_data()
conf.set_quoted('DATADIR', join_paths(get_option('prefix'), get_option('datadir')))
conf.set_quoted('SYSCONFDIR', get_option('sysconfdir'))
configure_file(
  output: 'config.h',
  configuration: conf)

add_global_arguments('-DVERSION="@0@"'.format(meson.project_version()), language: 'c')

# Define DEBUG for debug builds only (debugoptimized is not included on this one)
if get_option('buildtype') == 'debug'
  add_global_arguments('-DDEBUG', language: 'c')
endif

# Workaround for libtiff having ABI changes but not changing the internal
# version number
if get_option('tiffcfapattern')
  add_global_arguments('-DLIBTIFF_CFA_PATTERN', language: 'c')
endif

executable('megapixels',
  'src/camera.c',
  'src/flash.c',
  'src/gl_util.c',
  'src/gles2_debayer.c',
  'src/ini.c',
  'src/io_pipeline.c',
  'src/main.c',
  'src/matrix.c',
  'src/pipeline.c',
  'src/process_pipeline.c',
  'src/zbar_pipeline.c',
  'src/dcp.c',
  resources,
  include_directories: 'src/',
  dependencies: [gtkdep, libfeedback, libm, zbar, threads, epoxy, libmp, libdng, jpeg] + optdeps,
  install: true,
  link_args: '-Wl,-ldl')

install_data(
  [
    'config/pine64,pinephone,rear.dcp',
    'config/pine64,pinephone,front.dcp',
  ],
  install_dir: get_option('datadir') / 'megapixels/config/')

# Formatting
clang_format = find_program('clang-format-14', required: false)
if clang_format.found()
  format_files = [
    'data/blit.frag',
    'data/blit.vert',
    'data/debayer.frag',
    'data/debayer.vert',
    'data/solid.frag',
    'data/solid.vert',
    'src/camera.c',
    'src/camera.h',
    'src/camera_config.c',
    'src/camera_config.h',
    'src/device.c',
    'src/device.h',
    'src/flash.c',
    'src/flash.h',
    'src/gl_util.c',
    'src/gl_util.h',
    'src/gles2_debayer.c',
    'src/gles2_debayer.h',
    'src/io_pipeline.c',
    'src/io_pipeline.h',
    'src/main.c',
    'src/main.h',
    'src/matrix.c',
    'src/matrix.h',
    'src/mode.c',
    'src/mode.h',
    'src/pipeline.c',
    'src/pipeline.h',
    'src/process_pipeline.c',
    'src/process_pipeline.h',
    'src/zbar_pipeline.c',
    'src/zbar_pipeline.h',
    'tools/camera_test.c',
    'tools/list_devices.c',
  ]
  run_target('clang-format',
             command: ['clang-format.sh', '-i'] + format_files)
  run_target('clang-format-check',
             command: ['clang-format.sh', '-n', '-Werror'] + format_files)
endif