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Introduced a deferred task list for the OpenGL thread.

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This commit is contained in:
Thomas Harte 2017-02-19 21:46:07 -05:00
parent fccdce65b9
commit d979a822ac
1 changed files with 18 additions and 1 deletions
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19
Outputs/CRT/CRT.hpp
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@ -81,10 +81,19 @@ class CRT {
uint16_t x1, y; uint16_t x1, y;
} output_run_; } output_run_;
// The delegate // the delegate
Delegate *delegate_; Delegate *delegate_;
unsigned int frames_since_last_delegate_call_; unsigned int frames_since_last_delegate_call_;
// queued tasks for the OpenGL queue; performed before the next draw
std::mutex function_mutex_;
std::vector<std::function<void(void)>> enqueued_openGL_functions_;
inline void enqueue_openGL_function(const std::function<void(void)> &function)
{
std::lock_guard<std::mutex> function_guard(function_mutex_);
enqueued_openGL_functions_.push_back(function);
}
public: public:
/*! Constructs the CRT with a specified clock rate, height and colour subcarrier frequency. /*! Constructs the CRT with a specified clock rate, height and colour subcarrier frequency.
The requested number of buffers, each with the requested number of bytes per pixel, The requested number of buffers, each with the requested number of bytes per pixel,
@ -204,6 +213,14 @@ class CRT {
*/ */
inline void draw_frame(unsigned int output_width, unsigned int output_height, bool only_if_dirty) inline void draw_frame(unsigned int output_width, unsigned int output_height, bool only_if_dirty)
{ {
{
std::lock_guard<std::mutex> function_guard(function_mutex_);
for(std::function<void(void)> function : enqueued_openGL_functions_)
{
function();
}
enqueued_openGL_functions_.clear();
}
openGL_output_builder_.draw_frame(output_width, output_height, only_if_dirty); openGL_output_builder_.draw_frame(output_width, output_height, only_if_dirty);
} }