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https://github.com/dolphin-emu/dolphin.git
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672665dec0
Prior to this change, it's possible for m_wake_me_up_again to be used while it's in an uninitialized state from the exposed API. e.g. - Using SetEnable after construction would perform an uninitialized read. - Using PushEvent would perform an uninitialized read by way of operator |=. internally, an uninitialized read can happen if PullEventsInternal() is executed before other functions. Just to avoid the whole possibility of performing uninitialized reads, we just give the class member a default value of false.
98 lines
1.6 KiB
C++
98 lines
1.6 KiB
C++
// Copyright 2015 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#pragma once
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#include <condition_variable>
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#include <mutex>
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#include <queue>
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#include <vector>
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#include "Common/CommonTypes.h"
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#include "Common/Flag.h"
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struct EfbPokeData;
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class AsyncRequests
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{
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public:
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struct Event
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{
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enum Type
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{
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EFB_POKE_COLOR,
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EFB_POKE_Z,
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EFB_PEEK_COLOR,
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EFB_PEEK_Z,
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SWAP_EVENT,
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BBOX_READ,
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PERF_QUERY,
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} type;
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u64 time;
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union
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{
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struct
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{
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u16 x;
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u16 y;
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u32 data;
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} efb_poke;
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struct
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{
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u16 x;
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u16 y;
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u32* data;
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} efb_peek;
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struct
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{
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u32 xfbAddr;
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u32 fbWidth;
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u32 fbStride;
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u32 fbHeight;
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} swap_event;
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struct
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{
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int index;
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u16* data;
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} bbox;
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struct
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{
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} perf_query;
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};
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};
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AsyncRequests();
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void PullEvents()
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{
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if (!m_empty.IsSet())
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PullEventsInternal();
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}
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void PushEvent(const Event& event, bool blocking = false);
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void SetEnable(bool enable);
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void SetPassthrough(bool enable);
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static AsyncRequests* GetInstance() { return &s_singleton; }
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private:
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void PullEventsInternal();
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void HandleEvent(const Event& e);
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static AsyncRequests s_singleton;
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Common::Flag m_empty;
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std::queue<Event> m_queue;
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std::mutex m_mutex;
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std::condition_variable m_cond;
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bool m_wake_me_up_again = false;
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bool m_enable = false;
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bool m_passthrough = true;
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std::vector<EfbPokeData> m_merged_efb_pokes;
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};
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