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win-capture: Toggle premultiplied alpha for games

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Keep straight alpha as default for VTuber applications.
This commit is contained in:
jpark37 2022-12-12 20:01:13 -08:00 committed by Lain
parent c83f76db11
commit 09ffae07d8
2 changed files with 17 additions and 1 deletions
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1
plugins/win-capture/data/locale/en-US.ini
View File

@ -15,6 +15,7 @@ ClientArea="Client Area"
ForceSdr="Force SDR"
SLIFix="SLI/Crossfire Capture Mode (Slow)"
AllowTransparency="Allow Transparency"
PremultipliedAlpha="Premultiplied Alpha"
Monitor="Display"
PrimaryMonitor="Primary Monitor"
Method="Capture Method"

17
plugins/win-capture/game-capture.c
View File

@ -36,6 +36,7 @@
#define SETTING_COMPATIBILITY "sli_compatibility"
#define SETTING_CURSOR "capture_cursor"
#define SETTING_TRANSPARENCY "allow_transparency"
#define SETTING_PREMULTIPLIED_ALPHA "premultiplied_alpha"
#define SETTING_LIMIT_FRAMERATE "limit_framerate"
#define SETTING_CAPTURE_OVERLAYS "capture_overlays"
#define SETTING_ANTI_CHEAT_HOOK "anti_cheat_hook"
@ -58,6 +59,7 @@
#define TEXT_ANY_FULLSCREEN obs_module_text("GameCapture.AnyFullscreen")
#define TEXT_SLI_COMPATIBILITY obs_module_text("SLIFix")
#define TEXT_ALLOW_TRANSPARENCY obs_module_text("AllowTransparency")
#define TEXT_PREMULTIPLIED_ALPHA obs_module_text("PremultipliedAlpha")
#define TEXT_WINDOW obs_module_text("WindowCapture.Window")
#define TEXT_MATCH_PRIORITY obs_module_text("WindowCapture.Priority")
#define TEXT_MATCH_TITLE obs_module_text("WindowCapture.Priority.Title")
@ -113,6 +115,7 @@ struct game_capture_config {
bool cursor;
bool force_shmem;
bool allow_transparency;
bool premultiplied_alpha;
bool limit_framerate;
bool capture_overlays;
bool anticheat_hook;
@ -456,6 +459,8 @@ static inline void get_config(struct game_capture_config *cfg,
cfg->cursor = obs_data_get_bool(settings, SETTING_CURSOR);
cfg->allow_transparency =
obs_data_get_bool(settings, SETTING_TRANSPARENCY);
cfg->premultiplied_alpha =
obs_data_get_bool(settings, SETTING_PREMULTIPLIED_ALPHA);
cfg->limit_framerate =
obs_data_get_bool(settings, SETTING_LIMIT_FRAMERATE);
cfg->capture_overlays =
@ -2238,7 +2243,13 @@ static void game_capture_render(void *data, gs_effect_t *unused)
while (gs_effect_loop(effect, tech_name)) {
const bool previous = gs_framebuffer_srgb_enabled();
gs_enable_framebuffer_srgb(allow_transparency || linear_sample);
gs_blend_state_push();
gs_enable_blending(allow_transparency);
gs_blend_function_separate(gc->config.premultiplied_alpha
? GS_BLEND_ONE
: GS_BLEND_SRCALPHA,
GS_BLEND_INVSRCALPHA, GS_BLEND_ONE,
GS_BLEND_INVSRCALPHA);
if (linear_sample)
gs_effect_set_texture_srgb(image, texture);
else
@ -2247,7 +2258,7 @@ static void game_capture_render(void *data, gs_effect_t *unused)
"multiplier"),
multiplier);
gs_draw_sprite(texture, flip, 0, 0);
gs_enable_blending(true);
gs_blend_state_pop();
gs_enable_framebuffer_srgb(previous);
}
@ -2302,6 +2313,7 @@ static void game_capture_defaults(obs_data_t *settings)
obs_data_set_default_bool(settings, SETTING_COMPATIBILITY, false);
obs_data_set_default_bool(settings, SETTING_CURSOR, true);
obs_data_set_default_bool(settings, SETTING_TRANSPARENCY, false);
obs_data_set_default_bool(settings, SETTING_PREMULTIPLIED_ALPHA, false);
obs_data_set_default_bool(settings, SETTING_LIMIT_FRAMERATE, false);
obs_data_set_default_bool(settings, SETTING_CAPTURE_OVERLAYS, false);
obs_data_set_default_bool(settings, SETTING_ANTI_CHEAT_HOOK, true);
@ -2480,6 +2492,9 @@ static obs_properties_t *game_capture_properties(void *data)
obs_properties_add_bool(ppts, SETTING_TRANSPARENCY,
TEXT_ALLOW_TRANSPARENCY);
obs_properties_add_bool(ppts, SETTING_PREMULTIPLIED_ALPHA,
TEXT_PREMULTIPLIED_ALPHA);
obs_properties_add_bool(ppts, SETTING_LIMIT_FRAMERATE,
TEXT_LIMIT_FRAMERATE);