diff options
| -rw-r--r-- | kms++/inc/kms++/pixelformats.h | 12 | ||||
| -rw-r--r-- | meson.build | 14 |
2 files changed, 23 insertions, 3 deletions
diff --git a/kms++/inc/kms++/pixelformats.h b/kms++/inc/kms++/pixelformats.h index 6049c20..fac9c0f 100644 --- a/kms++/inc/kms++/pixelformats.h +++ b/kms++/inc/kms++/pixelformats.h @@ -15,7 +15,12 @@ constexpr uint32_t str_to_fourcc(const std::string_view fourcc) return fourcc[0] | (fourcc[1] << 8) | (fourcc[2] << 16) | (fourcc[3] << 24); } -constexpr std::string fourcc_to_str(uint32_t fourcc) +#if HAS_CONSTEXPR_STR +constexpr +#else +static inline +#endif +std::string fourcc_to_str(uint32_t fourcc) { char buf[4] = { (char)((fourcc >> 0) & 0xff), @@ -146,7 +151,10 @@ struct PixelFormatPlaneInfo { }; struct PixelFormatInfo { - constexpr PixelFormatInfo(const std::string_view name, + #if HAS_CONSTEXPR_STR && HAS_CONSTEXPR_VEC + constexpr + #endif + PixelFormatInfo(const std::string_view name, const std::string_view drm_fourcc, const std::string_view v4l2_4cc, PixelColorType color, diff --git a/meson.build b/meson.build index 9789e8c..cec41f3 100644 --- a/meson.build +++ b/meson.build @@ -22,6 +22,18 @@ if cpp.has_argument('-Wno-c99-designator') ] endif +if cpp.compiles('#include <string>\n constexpr bool test(const std::string& x) { return x.empty(); }') + add_global_arguments('-DHAS_CONSTEXPR_STR', language : 'cpp') +else + message('Compiler does not support constexpr strings') +endif + +if cpp.compiles('#include <vector>\n constexpr bool test(const std::vector<int>& x) { return x.empty(); }') + add_global_arguments('-DHAS_CONSTEXPR_VEC', language : 'cpp') +else + message('Compiler does not support constexpr vectors') +endif + add_project_arguments(cpp_arguments, language : 'cpp') libfmt_dep = dependency('fmt') @@ -33,7 +45,7 @@ if libdrmomap_dep.found() endif if get_option('libutils') - add_global_arguments('-DHAS_KMSXXUTIL', language : 'cpp') + add_global_arguments('-DHAS_KMSXXUTIL', language : 'cpp') endif subdir('kms++') |