diff options
Diffstat (limited to 'kms++')
| -rw-r--r-- | kms++/src/videomode.cpp | 117 |
1 files changed, 111 insertions, 6 deletions
diff --git a/kms++/src/videomode.cpp b/kms++/src/videomode.cpp index b039059..0e5acf6 100644 --- a/kms++/src/videomode.cpp +++ b/kms++/src/videomode.cpp @@ -110,18 +110,123 @@ static char sync_to_char(SyncPolarity pol) } } +#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0])) + +template<typename T> +std::string join(const T& values, const std::string& delim) +{ + std::ostringstream ss; + for (const auto& v : values) { + if (&v != &values[0]) + ss << delim; + ss << v; + } + return ss.str(); +} + +static const map<int, string> mode_type_map = { + // the deprecated ones don't care about a short name + { DRM_MODE_TYPE_BUILTIN, "builtin" }, // deprecated + { DRM_MODE_TYPE_CLOCK_C, "clock_c" }, // deprecated + { DRM_MODE_TYPE_CRTC_C, "crtc_c" }, // deprecated + { DRM_MODE_TYPE_PREFERRED, "P" }, + { DRM_MODE_TYPE_DEFAULT, "default" }, // deprecated + { DRM_MODE_TYPE_USERDEF, "U" }, + { DRM_MODE_TYPE_DRIVER, "D" }, +}; + +static const map<int, string> mode_flag_map = { + // the first 5 flags are displayed elsewhere + { DRM_MODE_FLAG_PHSYNC, "" }, + { DRM_MODE_FLAG_NHSYNC, "" }, + { DRM_MODE_FLAG_PVSYNC, "" }, + { DRM_MODE_FLAG_NVSYNC, "" }, + { DRM_MODE_FLAG_INTERLACE, "" }, + { DRM_MODE_FLAG_DBLSCAN, "dblscan" }, + { DRM_MODE_FLAG_CSYNC, "csync" }, + { DRM_MODE_FLAG_PCSYNC, "pcsync" }, + { DRM_MODE_FLAG_NCSYNC, "ncsync" }, + { DRM_MODE_FLAG_HSKEW, "hskew" }, + { DRM_MODE_FLAG_BCAST, "bcast" }, // deprecated + { DRM_MODE_FLAG_PIXMUX, "pixmux" }, // deprecated + { DRM_MODE_FLAG_DBLCLK, "2x" }, + { DRM_MODE_FLAG_CLKDIV2, "clkdiv2" }, +}; + +static const map<int, string> mode_3d_map = { + { DRM_MODE_FLAG_3D_NONE, "" }, + { DRM_MODE_FLAG_3D_FRAME_PACKING, "3dfp" }, + { DRM_MODE_FLAG_3D_FIELD_ALTERNATIVE, "3dfa" }, + { DRM_MODE_FLAG_3D_LINE_ALTERNATIVE, "3dla" }, + { DRM_MODE_FLAG_3D_SIDE_BY_SIDE_FULL, "3dsbs" }, + { DRM_MODE_FLAG_3D_L_DEPTH, "3dldepth" }, + { DRM_MODE_FLAG_3D_L_DEPTH_GFX_GFX_DEPTH, "3dgfx" }, + { DRM_MODE_FLAG_3D_TOP_AND_BOTTOM, "3dtab" }, + { DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF, "3dsbs" }, +}; + +static const map<int, string> mode_aspect_map = { + { DRM_MODE_FLAG_PIC_AR_NONE, "" }, + { DRM_MODE_FLAG_PIC_AR_4_3, "4:3" }, + { DRM_MODE_FLAG_PIC_AR_16_9, "16:9" }, + { DRM_MODE_FLAG_PIC_AR_64_27, "64:27" }, + { DRM_MODE_FLAG_PIC_AR_256_135, "256:135" }, +}; + +static string mode_type_str(uint32_t val) { + vector<string> s; + for (const auto & [k, v] : mode_type_map) { + if (val & k) { + if (!v.empty()) + s.push_back(v); + val &= ~k; + } + } + // any unknown bits + if (val != 0) + s.push_back(fmt::format("{:#x}", val)); + return join(s, "|"); +} + +static string mode_flag_str(uint32_t val) { + vector<string> s; + for (const auto& [k, v] : mode_flag_map) { + if (val & k) { + if (!v.empty()) + s.push_back(v); + val &= ~k; + } + } + auto it = mode_3d_map.find(val & DRM_MODE_FLAG_3D_MASK); + if (it != mode_3d_map.end()) { + if (!it->second.empty()) + s.push_back(it->second); + val &= ~DRM_MODE_FLAG_3D_MASK; + } + it = mode_aspect_map.find(val & DRM_MODE_FLAG_PIC_AR_MASK); + if (it != mode_aspect_map.end()) { + if (!it->second.empty()) + s.push_back(it->second); + val &= ~DRM_MODE_FLAG_PIC_AR_MASK; + } + // any unknown bits + if (val != 0) + s.push_back(fmt::format("{:#x}", val)); + return join(s, "|"); +} + string Videomode::to_string_long() const { string h = fmt::format("{}/{}/{}/{}/{}", hdisplay, hfp(), hsw(), hbp(), sync_to_char(hsync())); string v = fmt::format("{}/{}/{}/{}/{}", vdisplay, vfp(), vsw(), vbp(), sync_to_char(vsync())); - string str = fmt::format("{} {:.3f} {} {} {} ({:.2f}) {:#x} {:#x}", + string str = fmt::format("{} {:.3f} {} {} {} ({:.2f}) {} {}", to_string_short(), clock / 1000.0, h, v, vrefresh, calculated_vrefresh(), - flags, - type); + mode_type_str(type), + mode_flag_str(flags)); return str; } @@ -131,13 +236,13 @@ string Videomode::to_string_long_padded() const string h = fmt::format("{}/{}/{}/{}/{}", hdisplay, hfp(), hsw(), hbp(), sync_to_char(hsync())); string v = fmt::format("{}/{}/{}/{}/{}", vdisplay, vfp(), vsw(), vbp(), sync_to_char(vsync())); - string str = fmt::format("{:<16} {:7.3f} {:<18} {:<18} {:2} ({:.2f}) {:#10x} {:#6x}", + string str = fmt::format("{:<16} {:7.3f} {:<18} {:<18} {:2} ({:.2f}) {:<5} {}", to_string_short(), clock / 1000.0, h, v, vrefresh, calculated_vrefresh(), - flags, - type); + mode_type_str(type), + mode_flag_str(flags)); return str; } |