video_core, core: Move pixel download to its own thread
This uses the mailbox model to move pixel downloading to its own thread, eliminating Nvidia's warnings and (possibly) making use of GPU copy engine. To achieve this, we created a new mailbox type that is different from the presentation mailbox in that it never discards a rendered frame. Also, I tweaked the projection matrix thing so that it can just draw the frame upside down instead of having the CPU flip it.
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@ -308,6 +308,12 @@ System::ResultStatus System::Init(Frontend::EmuWindow& emu_window, u32 system_mo
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Service::Init(*this);
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GDBStub::Init();
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#ifdef ENABLE_FFMPEG_VIDEO_DUMPER
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video_dumper = std::make_unique<VideoDumper::FFmpegBackend>();
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#else
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video_dumper = std::make_unique<VideoDumper::NullBackend>();
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#endif
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VideoCore::ResultStatus result = VideoCore::Init(emu_window, *memory);
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if (result != VideoCore::ResultStatus::Success) {
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switch (result) {
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@ -320,12 +326,6 @@ System::ResultStatus System::Init(Frontend::EmuWindow& emu_window, u32 system_mo
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}
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}
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#ifdef ENABLE_FFMPEG_VIDEO_DUMPER
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video_dumper = std::make_unique<VideoDumper::FFmpegBackend>();
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#else
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video_dumper = std::make_unique<VideoDumper::NullBackend>();
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#endif
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LOG_DEBUG(Core, "Initialized OK");
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initalized = true;
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