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Defer format_changed and frame_changed signal for all camera feeds

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This commit is contained in:
Jason Kuo
2025-08-14 06:47:56 +08:00
parent f20ef37ccb
commit 257176ea32
1 changed files with 21 additions and 7 deletions
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28
servers/camera/camera_feed.cpp
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@@ -196,13 +196,17 @@ void CameraFeed::set_rgb_image(const Ref<Image> &p_rgb_img) {
RID new_texture = RenderingServer::get_singleton()->texture_2d_create(p_rgb_img);
RenderingServer::get_singleton()->texture_replace(texture[CameraServer::FEED_RGBA_IMAGE], new_texture);
emit_signal(format_changed_signal_name);
// Defer `format_changed` signals to ensure they are emitted on Godot's main thread.
// This also makes sure the datatype of the feed is updated before the emission.
call_deferred("emit_signal", format_changed_signal_name);
} else {
RenderingServer::get_singleton()->texture_2d_update(texture[CameraServer::FEED_RGBA_IMAGE], p_rgb_img);
}
datatype = CameraFeed::FEED_RGB;
emit_signal(frame_changed_signal_name);
// Most of the time the pixel data of camera devices comes from threads outside Godot.
// Defer `frame_changed` signals to ensure they are emitted on Godot's main thread.
call_deferred("emit_signal", frame_changed_signal_name);
}
}
@@ -220,13 +224,17 @@ void CameraFeed::set_ycbcr_image(const Ref<Image> &p_ycbcr_img) {
RID new_texture = RenderingServer::get_singleton()->texture_2d_create(p_ycbcr_img);
RenderingServer::get_singleton()->texture_replace(texture[CameraServer::FEED_RGBA_IMAGE], new_texture);
emit_signal(format_changed_signal_name);
// Defer `format_changed` signals to ensure they are emitted on Godot's main thread.
// This also makes sure the datatype of the feed is updated before the emission.
call_deferred("emit_signal", format_changed_signal_name);
} else {
RenderingServer::get_singleton()->texture_2d_update(texture[CameraServer::FEED_RGBA_IMAGE], p_ycbcr_img);
}
datatype = CameraFeed::FEED_YCBCR;
emit_signal(frame_changed_signal_name);
// Most of the time the pixel data of camera devices comes from threads outside Godot.
// Defer `frame_changed` signals to ensure they are emitted on Godot's main thread.
call_deferred("emit_signal", frame_changed_signal_name);
}
}
@@ -254,14 +262,18 @@ void CameraFeed::set_ycbcr_images(const Ref<Image> &p_y_img, const Ref<Image> &p
RenderingServer::get_singleton()->texture_replace(texture[CameraServer::FEED_CBCR_IMAGE], new_texture);
}
emit_signal(format_changed_signal_name);
// Defer `format_changed` signals to ensure they are emitted on Godot's main thread.
// This also makes sure the datatype of the feed is updated before the emission.
call_deferred("emit_signal", format_changed_signal_name);
} else {
RenderingServer::get_singleton()->texture_2d_update(texture[CameraServer::FEED_Y_IMAGE], p_y_img);
RenderingServer::get_singleton()->texture_2d_update(texture[CameraServer::FEED_CBCR_IMAGE], p_cbcr_img);
}
datatype = CameraFeed::FEED_YCBCR_SEP;
emit_signal(frame_changed_signal_name);
// Most of the time the pixel data of camera devices comes from threads outside Godot.
// Defer `frame_changed` signals to ensure they are emitted on Godot's main thread.
call_deferred("emit_signal", frame_changed_signal_name);
}
}
@@ -276,7 +288,9 @@ void CameraFeed::set_external(int p_width, int p_height) {
}
datatype = CameraFeed::FEED_EXTERNAL;
emit_signal(frame_changed_signal_name);
// Most of the time the pixel data of camera devices comes from threads outside Godot.
// Defer `frame_changed` signals to ensure they are emitted on Godot's main thread.
call_deferred("emit_signal", frame_changed_signal_name);
}
bool CameraFeed::activate_feed() {