Upgrade bmusb.

[nageru] / mixer.h

diff --git a/mixer.h b/mixer.h
index 5fb195ec77793faf0a8e9d3989758caf6650b7de..6828bc66364d27d20d9f0a264816d29d42293882 100644 (file)
--- a/mixer.h
+++ b/mixer.h
@@ -139,10 +139,17 @@ public:
                return output_channel[output].get_display_frame(frame);
        }
 
+       // NOTE: Callbacks will be called with a mutex held, so you should probably
+       // not do real work in them.
        typedef std::function<void()> new_frame_ready_callback_t;
-       void set_frame_ready_callback(Output output, new_frame_ready_callback_t callback)
+       void add_frame_ready_callback(Output output, void *key, new_frame_ready_callback_t callback)
        {
-               output_channel[output].set_frame_ready_callback(callback);
+               output_channel[output].add_frame_ready_callback(key, callback);
+       }
+
+       void remove_frame_ready_callback(Output output, void *key)
+       {
+               output_channel[output].remove_frame_ready_callback(key);
        }
 
        // TODO: Should this really be per-channel? Shouldn't it just be called for e.g. the live output?
@@ -457,7 +464,8 @@ private:
                ~OutputChannel();
                void output_frame(DisplayFrame frame);
                bool get_display_frame(DisplayFrame *frame);
-               void set_frame_ready_callback(new_frame_ready_callback_t callback);
+               void add_frame_ready_callback(void *key, new_frame_ready_callback_t callback);
+               void remove_frame_ready_callback(void *key);
                void set_transition_names_updated_callback(transition_names_updated_callback_t callback);
                void set_name_updated_callback(name_updated_callback_t callback);
                void set_color_updated_callback(color_updated_callback_t callback);
@@ -470,7 +478,7 @@ private:
                std::mutex frame_mutex;
                DisplayFrame current_frame, ready_frame;  // protected by <frame_mutex>
                bool has_current_frame = false, has_ready_frame = false;  // protected by <frame_mutex>
-               new_frame_ready_callback_t new_frame_ready_callback;
+               std::map<void *, new_frame_ready_callback_t> new_frame_ready_callbacks;  // protected by <frame_mutex>
                transition_names_updated_callback_t transition_names_updated_callback;
                name_updated_callback_t name_updated_callback;
                color_updated_callback_t color_updated_callback;