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video: Support for chroma subcarrier over VGA

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Adds "subcarrier" config flag, used to enable chroma subcarrier output over VGA Vsync for external RGB to NTSC/PAL converters.
This commit is contained in:
misteraddons
2025-08-13 23:32:07 -07:00
committed by GitHub
parent d0fe3f0b8d
commit eef9cbd6d9
4 changed files with 29 additions and 2 deletions
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2
cfg.cpp
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@@ -48,6 +48,7 @@ static const ini_var_t ini_vars[] =
{ "VIDEO_MODE_NTSC", (void*)(cfg.video_conf_ntsc), STRING, 0, sizeof(cfg.video_conf_ntsc) - 1 },
{ "VIDEO_INFO", (void*)(&(cfg.video_info)), UINT8, 0, 10 },
{ "VSYNC_ADJUST", (void*)(&(cfg.vsync_adjust)), UINT8, 0, 2 },
{ "SUBCARRIER", (void*)(&(cfg.subcarrier)), UINT8, 0, 1 },
{ "HDMI_AUDIO_96K", (void*)(&(cfg.hdmi_audio_96k)), UINT8, 0, 1 },
{ "DVI_MODE", (void*)(&(cfg.dvi_mode)), UINT8, 0, 1 },
{ "HDMI_LIMITED", (void*)(&(cfg.hdmi_limited)), UINT8, 0, 2 },
@@ -581,6 +582,7 @@ void cfg_parse()
cfg.rumble = 1;
cfg.wheel_force = 50;
cfg.dvi_mode = 2;
cfg.subcarrier = 0;
cfg.lookahead = 2;
cfg.hdr = 0;
cfg.hdr_max_nits = 1000;