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Simplified further: eliminated delegate. Which means I can go frame-free internally to the CRT at some point, if I want.

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Thomas Harte 2016-02-03 19:11:18 -05:00
parent 19393390ac
commit 09e11469c3
1 changed files with 3 additions and 30 deletions
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33
Outputs/CRT.hpp
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@ -137,38 +137,11 @@ class CRT {
uint8_t *get_write_target_for_buffer(int buffer);
// MARK: Binding
class Delegate {
public:
/*! Notifies the delegate that a new frame is complete, providing an ID for it.
The delegate then owns that frame. It can draw it by issuing an @c draw_frame
call to the CRT. It should call @c return_frame to return the oldest frame it
is currently holding.
@param crt The CRT that produced the new frame.
@param frame_id An identifier for the finished frame, used for calls to @c draw_frame.
@param did_detect_vsync @c true if this frame ended due to a vsync signal detected in
the incoming signal; @c false otherwise.
*/
virtual void crt_did_end_frame(CRT *crt, int frame_id, bool did_detect_vsync) = 0;
};
/*! Sets the CRT frame delegate. The delegate will be notified as frames are completed; it is
responsible for requesting that they be drawn and returning them when they are no longer needed.
@param delegate The delegate.
/*! Causes appropriate OpenGL or OpenGL ES calls to be issued in order to draw the current CRT state.
The caller is responsible for ensuring that a valid OpenGL context exists for the duration of this call.
*/
void set_delegate(std::weak_ptr<Delegate> delegate);
/*! Causes appropriate OpenGL or OpenGL ES calls to be made in order to draw a frame. The caller
is responsible for ensuring that a valid OpenGL context exists for the duration of this call.
@param frame_id The frame to draw.
*/
void draw_frame(int frame_id);
/*! Indicates that the delegate has no further interest in the oldest frame posted to it. */
void return_frame();
void draw_frame();
/*! Tells the CRT that the next call to draw_frame will occur on a different OpenGL context than
the previous.