1
1
mirror of https://github.com/wez/wezterm.git synced 2024-12-25 14:22:37 +03:00
wezterm/deps/cairo/pixman/meson.build
Wez Furlong 58a2a30623
Add vendored cairo-sys-rs crate
I'm experimenting with using cairo's 2D graphics for glyph related
drawing operations, and perhaps more stuff in the UI in the future.

The challenge is that no one has yet encapsulated its build in a
cargo-friendly way.

This commit is that attempt.

The strategy is this:

* `deps/cairo` is ostensibly the same thing as https://github.com/gtk-rs/gtk-rs-core/tree/master/cairo/sys
  which is the cairo-sys-rs crate
* Its build.rs has been replaced with a version that builds from the C
  sources that are found in-tree; it will never look for the system
  cairo library
* A pair of scripts to import pixman (a required dep of cairo) and
  cairo itself in a repeatable way are include, for if/when we need
  to update the vendored sources
  Cairo is a mature library and doesn't release very often.
* The workspace sets a patch for crates.io so that cairo-rs has
  its cairo-sys-rs dep redirected to the local build.

I'm not planning to upstream this stuff to gtk-rs-core as full cairo
depends on a lot more things than are dealt with here, so it would be a
PITA to handle that generally.

This vendoring strips out things that are not used, so the cairo
library that remains:

* Is not internally thread safe; no TLS or mutex support is enabled
  in either of them. That's fine because the high level cairo-rs
  wrapper is not Send+Sync, which means that rust will only allow
  it to be used single threaded anyway.
* Only has the basic recording and image surfaces
* No platform support for win32/xlib/xcb and so on
2023-08-20 14:59:29 -07:00

575 lines
17 KiB
Meson

# Copyright © 2018 Intel Corporation
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
project(
'pixman',
['c'],
version : '0.42.2',
license : 'MIT',
meson_version : '>= 0.52.0',
default_options : ['c_std=gnu99', 'buildtype=debugoptimized'],
)
config = configuration_data()
cc = meson.get_compiler('c')
null_dep = dependency('', required : false)
add_project_arguments(
cc.get_supported_arguments([
'-Wdeclaration-after-statement',
'-fno-strict-aliasing',
'-fvisibility=hidden',
'-Wundef',
# -ftrapping-math is the default for gcc, but -fno-trapping-math is the
# default for clang. The FLOAT_IS_ZERO macro is used to guard against
# floating-point exceptions, however with -fno-trapping-math, the compiler
# can reorder floating-point operations so that they occur before the guard.
# Note, this function is ignored in clang < 10.0.0.
'-ftrapping-math'
]),
language : ['c']
)
# GCC and Clang both ignore -Wno options that they don't recognize, so test for
# -W<opt>, then add -Wno-<opt> if it's ignored
foreach opt : ['unused-local-typedefs']
if cc.has_argument('-W' + opt)
add_project_arguments(['-Wno-' + opt], language : ['c'])
endif
endforeach
use_loongson_mmi = get_option('loongson-mmi')
have_loongson_mmi = false
loongson_mmi_flags = ['-mloongson-mmi']
if not use_loongson_mmi.disabled()
if host_machine.cpu_family() == 'mips64' and cc.compiles('''
#ifndef __mips_loongson_vector_rev
#error "Loongson Multimedia Instructions are only available on Loongson"
#endif
#if defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 4))
#error "Need GCC >= 4.4 for Loongson MMI compilation"
#endif
#include "pixman/loongson-mmintrin.h"
int main () {
union {
__m64 v;
char c[8];
} a = { .c = {1, 2, 3, 4, 5, 6, 7, 8} };
int b = 4;
__m64 c = _mm_srli_pi16 (a.v, b);
return 0;
}''',
args : loongson_mmi_flags,
include_directories : include_directories('.'),
name : 'Loongson MMI Intrinsic Support')
have_loongson_mmi = true
endif
endif
if have_loongson_mmi
config.set10('USE_LOONGSON_MMI', true)
elif use_loongson_mmi.enabled()
error('Loongson MMI Support unavailable, but required')
endif
use_mmx = get_option('mmx')
have_mmx = false
mmx_flags = []
if cc.get_id() == 'msvc'
mmx_flags = ['/w14710', '/w14714', '/wd4244']
elif cc.get_id() == 'sun'
mmx_flags = ['-xarch=sse']
else
mmx_flags = ['-mmmx', '-Winline']
endif
if not use_mmx.disabled()
if host_machine.cpu_family() == 'x86_64' or cc.get_id() == 'msvc'
have_mmx = true
elif host_machine.cpu_family() == 'x86' and cc.compiles('''
#include <mmintrin.h>
#include <stdint.h>
/* Check support for block expressions */
#define _mm_shuffle_pi16(A, N) \
({ \
__m64 ret; \
\
/* Some versions of clang will choke on K */ \
asm ("pshufw %2, %1, %0\n\t" \
: "=y" (ret) \
: "y" (A), "K" ((const int8_t)N) \
); \
\
ret; \
})
int main () {
__m64 v = _mm_cvtsi32_si64 (1);
__m64 w;
w = _mm_shuffle_pi16(v, 5);
/* Some versions of clang will choke on this */
asm ("pmulhuw %1, %0\n\t"
: "+y" (w)
: "y" (v)
);
return _mm_cvtsi64_si32 (v);
}''',
args : mmx_flags,
name : 'MMX Intrinsic Support')
have_mmx = true
endif
endif
if have_mmx
# Inline assembly do not work on X64 MSVC, so we use
# compatibility intrinsics there
if cc.get_id() != 'msvc' or host_machine.cpu_family() != 'x86_64'
config.set10('USE_X86_MMX', true)
endif
elif use_mmx.enabled()
error('MMX Support unavailable, but required')
endif
use_sse2 = get_option('sse2')
have_sse2 = false
sse2_flags = []
if cc.get_id() == 'sun'
sse2_flags = ['-xarch=sse2']
elif cc.get_id() != 'msvc'
sse2_flags = ['-msse2', '-Winline']
endif
if not use_sse2.disabled()
if host_machine.cpu_family() == 'x86'
if cc.compiles('''
#if defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 2))
# if !defined(__amd64__) && !defined(__x86_64__)
# error "Need GCC >= 4.2 for SSE2 intrinsics on x86"
# endif
#endif
#include <mmintrin.h>
#include <xmmintrin.h>
#include <emmintrin.h>
int param;
int main () {
__m128i a = _mm_set1_epi32 (param), b = _mm_set1_epi32 (param + 1), c;
c = _mm_xor_si128 (a, b);
return _mm_cvtsi128_si32(c);
}''',
args : sse2_flags,
name : 'SSE2 Intrinsic Support')
have_sse2 = true
endif
elif host_machine.cpu_family() == 'x86_64'
have_sse2 = true
endif
endif
if have_sse2
config.set10('USE_SSE2', true)
elif use_sse2.enabled()
error('sse2 Support unavailable, but required')
endif
use_ssse3 = get_option('ssse3')
have_ssse3 = false
ssse3_flags = []
if cc.get_id() != 'msvc'
ssse3_flags = ['-mssse3', '-Winline']
endif
# x64 pre-2010 MSVC compilers crashes when building the ssse3 code
if not use_ssse3.disabled() and not (cc.get_id() == 'msvc' and cc.version().version_compare('<16') and host_machine.cpu_family() == 'x86_64')
if host_machine.cpu_family().startswith('x86')
if cc.compiles('''
#include <mmintrin.h>
#include <xmmintrin.h>
#include <emmintrin.h>
int param;
int main () {
__m128i a = _mm_set1_epi32 (param), b = _mm_set1_epi32 (param + 1), c;
c = _mm_xor_si128 (a, b);
return _mm_cvtsi128_si32(c);
}''',
args : ssse3_flags,
name : 'SSSE3 Intrinsic Support')
have_ssse3 = true
endif
endif
endif
if have_ssse3
config.set10('USE_SSSE3', true)
elif use_ssse3.enabled()
error('ssse3 Support unavailable, but required')
endif
use_vmx = get_option('vmx')
have_vmx = false
vmx_flags = ['-maltivec', '-mabi=altivec']
if not use_vmx.disabled()
if host_machine.cpu_family().startswith('ppc')
if cc.compiles('''
#include <altivec.h>
int main () {
vector unsigned int v = vec_splat_u32 (1);
v = vec_sub (v, v);
return 0;
}''',
args : vmx_flags,
name : 'VMX/Altivec Intrinsic Support')
have_vmx = true
endif
endif
endif
if have_vmx
config.set10('USE_VMX', true)
elif use_vmx.enabled()
error('vmx Support unavailable, but required')
endif
use_armv6_simd = get_option('arm-simd')
have_armv6_simd = false
if not use_armv6_simd.disabled()
if host_machine.cpu_family() == 'arm'
if cc.compiles(files('arm-simd-test.S'), name : 'ARMv6 SIMD Intrinsic Support')
have_armv6_simd = true
endif
endif
endif
if have_armv6_simd
config.set10('USE_ARM_SIMD', true)
elif use_armv6_simd.enabled()
error('ARMv6 SIMD Support unavailable, but required')
endif
use_neon = get_option('neon')
have_neon = false
if not use_neon.disabled()
if host_machine.cpu_family() == 'arm'
if cc.compiles(files('neon-test.S'), name : 'NEON Intrinsic Support')
have_neon = true
endif
endif
endif
if have_neon
config.set10('USE_ARM_NEON', true)
elif use_neon.enabled()
error('NEON Support unavailable, but required')
endif
use_a64neon = get_option('a64-neon')
have_a64neon = false
if not use_a64neon.disabled()
if host_machine.cpu_family() == 'aarch64'
if cc.compiles(files('a64-neon-test.S'), name : 'NEON A64 Intrinsic Support')
have_a64neon = true
endif
endif
endif
if have_a64neon
config.set10('USE_ARM_A64_NEON', true)
elif use_a64neon.enabled()
error('A64 NEON Support unavailable, but required')
endif
use_iwmmxt = get_option('iwmmxt')
have_iwmmxt = false
iwmmxt_flags = ['-flax-vector-conversions', '-Winline']
if not use_iwmmxt.disabled()
if get_option('iwmmxt2')
iwmmxt_flags += '-march=iwmmxt2'
else
iwmmxt_flags += '-march=iwmmxt'
endif
if host_machine.cpu_family() == 'arm'
if cc.compiles('''
#ifndef __IWMMXT__
#error "IWMMXT not enabled (with -march=iwmmxt)"
#endif
#if defined(__GNUC__) && (__GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8))
#error "Need GCC >= 4.8 for IWMMXT intrinsics"
#endif
#include <mmintrin.h>
int main () {
union {
__m64 v;
char c[8];
} a = { .c = {1, 2, 3, 4, 5, 6, 7, 8} };
int b = 4;
__m64 c = _mm_srli_si64 (a.v, b);
}
''',
args : iwmmxt_flags,
name : 'IWMMXT Intrinsic Support')
have_iwmmxt = true
endif
endif
endif
if have_iwmmxt
config.set10('USE_ARM_IWMMXT', true)
elif use_iwmmxt.enabled()
error('IWMMXT Support unavailable, but required')
endif
use_mips_dspr2 = get_option('mips-dspr2')
have_mips_dspr2 = false
mips_dspr2_flags = ['-mdspr2']
if not use_mips_dspr2.disabled()
if host_machine.cpu_family() == 'mips32'
if cc.compiles('''
#if !(defined(__mips__) && __mips_isa_rev >= 2)
#error MIPS DSPr2 is currently only available on MIPS32r2 platforms.
#endif
int
main ()
{
int c = 0, a = 0, b = 0;
__asm__ __volatile__ (
"precr.qb.ph %[c], %[a], %[b] \n\t"
: [c] "=r" (c)
: [a] "r" (a), [b] "r" (b)
);
return c;
}''',
args : mipds_dspr2_flags,
name : 'DSPr2 Intrinsic Support')
have_mips_dspr2 = true
endif
endif
endif
if have_mips_dspr2
config.set10('USE_MIPS_DSPR2', true)
elif use_mips_dspr2.enabled()
error('MIPS DSPr2 Support unavailable, but required')
endif
use_gnu_asm = get_option('gnu-inline-asm')
if not use_gnu_asm.disabled()
if cc.compiles('''
int main () {
/* Most modern architectures have a NOP instruction, so this is a fairly generic test. */
asm volatile ( "\tnop\n" : : : "cc", "memory" );
return 0;
}
''',
name : 'GNU Inline ASM support.')
config.set10('USE_GCC_INLINE_ASM', true)
elif use_gnu_asm.enabled()
error('GNU inline assembly support missing but required.')
endif
endif
if get_option('timers')
config.set('PIXMAN_TIMERS', 1)
endif
if get_option('gnuplot')
config.set('PIXMAN_GNUPLOT', 1)
endif
if cc.get_id() != 'msvc'
dep_openmp = dependency('openmp', required : get_option('openmp'))
if dep_openmp.found()
config.set10('USE_OPENMP', true)
elif meson.version().version_compare('<0.51.0')
# In versions of meson before 0.51 the openmp dependency can still
# inject arguments in the the auto case when it is not found, the
# detection does work correctly in that case however, so we just
# replace dep_openmp with null_dep to work around this.
dep_openmp = null_dep
endif
else
# the MSVC implementation of openmp is not compliant enough for our
# uses here, so we disable it here.
# Please see: https://stackoverflow.com/questions/12560243/using-threadprivate-directive-in-visual-studio
dep_openmp = null_dep
endif
dep_gtk = dependency('gtk+-3.0', required : get_option('gtk'))
dep_glib = dependency('glib-2.0', required : get_option('gtk'))
dep_png = null_dep
if not get_option('libpng').disabled()
dep_png = dependency('libpng', required : false)
# We need to look for the right library to link to for libpng,
# when looking for libpng manually
foreach png_ver : [ '16', '15', '14', '13', '12', '10' ]
if not dep_png.found()
dep_png = cc.find_library('libpng@0@'.format(png_ver), has_headers : ['png.h'], required : false)
endif
endforeach
if get_option('libpng').enabled() and not dep_png.found()
error('libpng support requested but libpng library not found')
endif
endif
if dep_png.found()
config.set('HAVE_LIBPNG', 1)
endif
dep_m = cc.find_library('m', required : false)
dep_threads = dependency('threads')
# MSVC-style compilers do not come with pthreads, so we must link
# to it explicitly, currently pthreads-win32 is supported
pthreads_found = false
if dep_threads.found() and cc.has_header('pthread.h')
if cc.get_argument_syntax() == 'msvc'
pthread_lib = null_dep
foreach pthread_type : ['VC3', 'VSE3', 'VCE3', 'VC2', 'VSE2', 'VCE2']
if not pthread_lib.found()
pthread_lib = cc.find_library('pthread@0@'.format(pthread_type), required : false)
endif
endforeach
if pthread_lib.found()
pthreads_found = true
dep_threads = pthread_lib
endif
else
pthreads_found = true
endif
endif
if pthreads_found
config.set('HAVE_PTHREADS', 1)
endif
funcs = ['sigaction', 'alarm', 'mprotect', 'getpagesize', 'mmap', 'getisax', 'gettimeofday']
# mingw claimes to have posix_memalign, but it doesn't
if host_machine.system() != 'windows'
funcs += 'posix_memalign'
endif
foreach f : funcs
if cc.has_function(f)
config.set('HAVE_@0@'.format(f.to_upper()), 1)
endif
endforeach
# This is only used in one test, that defines _GNU_SOURCE
if cc.has_function('feenableexcept',
prefix : '#define _GNU_SOURCE\n#include <fenv.h>',
dependencies : dep_m)
config.set('HAVE_FEENABLEEXCEPT', 1)
endif
if cc.has_header_symbol('fenv.h', 'FE_DIVBYZERO')
config.set('HAVE_FEDIVBYZERO', 1)
endif
foreach h : ['sys/mman.h', 'fenv.h', 'unistd.h']
if cc.check_header(h)
config.set('HAVE_@0@'.format(h.underscorify().to_upper()), 1)
endif
endforeach
use_tls = get_option('tls')
have_tls = ''
if not use_tls.disabled()
# gcc on Windows only warns that __declspec(thread) isn't supported,
# passing -Werror=attributes makes it fail.
if (host_machine.system() == 'windows' and
cc.compiles('int __declspec(thread) foo;',
args : cc.get_supported_arguments(['-Werror=attributes']),
name : 'TLS via __declspec(thread)'))
have_tls = '__declspec(thread)'
elif cc.compiles('int __thread foo;', name : 'TLS via __thread')
have_tls = '__thread'
endif
endif
if have_tls != ''
config.set('TLS', have_tls)
elif use_tls.enabled()
error('Compiler TLS Support unavailable, but required')
endif
if cc.links('''
static int x = 1;
static void __attribute__((constructor)) constructor_function () { x = 0; }
int main (void) { return x; }
''',
name : '__attribute__((constructor))')
config.set('TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR', 1)
endif
if cc.links(
' __float128 a = 1.0Q, b = 2.0Q; int main (void) { return a + b; }',
name : 'Has float128 support')
config.set('HAVE_FLOAT128', 1)
endif
if cc.has_function('clz')
config.set('HAVE_BUILTIN_CLZ', 1)
endif
if cc.links('''
unsigned int __attribute__ ((vector_size(16))) e, a, b;
int main (void) { e = a - ((b << 27) + (b >> (32 - 27))) + 1; return e[0]; }
''',
name : 'Support for GCC vector extensions')
config.set('HAVE_GCC_VECTOR_EXTENSIONS', 1)
endif
if host_machine.endian() == 'big'
config.set('WORDS_BIGENDIAN', 1)
endif
config.set('SIZEOF_LONG', cc.sizeof('long'))
# Required to make pixman-private.h
config.set('PACKAGE', 'foo')
version_conf = configuration_data()
split = meson.project_version().split('.')
version_conf.set('PIXMAN_VERSION_MAJOR', split[0])
version_conf.set('PIXMAN_VERSION_MINOR', split[1])
version_conf.set('PIXMAN_VERSION_MICRO', split[2])
add_project_arguments('-DHAVE_CONFIG_H', language : ['c'])
subdir('pixman')
if not get_option('tests').disabled()
subdir('test')
subdir('demos')
endif
pkg = import('pkgconfig')
pkg.generate(libpixman,
name : 'Pixman',
filebase : 'pixman-1',
description : 'The pixman library (version 1)',
subdirs: 'pixman-1',
version : meson.project_version(),
)