Heed the Exif white point when playing back (MJPEG) video.

[nageru] / nageru / theme.cpp

diff --git a/nageru/theme.cpp b/nageru/theme.cpp
index 51aacd54bb4e239e9da9d5e75e180366002a1e91..f3e1aa1c64bb53cdc913e7f5fdb6d326362ff860 100644 (file)
--- a/nageru/theme.cpp
+++ b/nageru/theme.cpp
@@ -1687,11 +1687,27 @@ bool Theme::get_supports_set_wb(unsigned channel)
 void Theme::set_wb(unsigned channel, float r, float g, float b)
 {
        lock_guard<mutex> lock(m);
-
        if (channel_signals.count(channel)) {
                white_balance_for_signal[channel_signals[channel]] = RGBTriplet{ r, g, b };
        }
 
+       call_lua_wb_callback(channel, r, g, b);
+}
+
+void Theme::set_wb_for_signal(int signal, float r, float g, float b)
+{
+       lock_guard<mutex> lock(m);
+       white_balance_for_signal[signal] = RGBTriplet{ r, g, b };
+
+       for (const auto &channel_and_signal : channel_signals) {
+               if (channel_and_signal.second == signal) {
+                       call_lua_wb_callback(channel_and_signal.first, r, g, b);
+               }
+       }
+}
+
+void Theme::call_lua_wb_callback(unsigned channel, float r, float g, float b)
+{
        lua_getglobal(L, "set_wb");
        if (lua_isnil(L, -1)) {
                // The function doesn't exist, to just ignore. We've stored the white balance,