Move VideoBackendBase from Common to VideoCommon

Source/Core/VideoCommon/Src/VideoBackendBase.h

@@ -0,0 +1,185 @@
+// Copyright 2013 Dolphin Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#ifndef VIDEO_BACKEND_H_
+#define VIDEO_BACKEND_H_
+
+#include <string>
+#include <vector>
+
+#include "ChunkFile.h"
+#include "../../VideoCommon/Src/PerfQueryBase.h"
+
+typedef void (*writeFn16)(const u16,const u32);
+typedef void (*writeFn32)(const u32,const u32);
+typedef void (*readFn16)(u16&, const u32);
+
+
+enum FieldType
+{
+	FIELD_PROGRESSIVE = 0,
+	FIELD_UPPER,
+	FIELD_LOWER
+};
+
+enum EFBAccessType
+{
+	PEEK_Z = 0,
+	POKE_Z,
+	PEEK_COLOR,
+	POKE_COLOR
+};
+
+struct SCPFifoStruct
+{
+	// fifo registers
+	volatile u32 CPBase;
+	volatile u32 CPEnd;
+	u32 CPHiWatermark;
+	u32 CPLoWatermark;
+	volatile u32 CPReadWriteDistance;
+	volatile u32 CPWritePointer;
+	volatile u32 CPReadPointer;
+	volatile u32 CPBreakpoint;
+	volatile u32 SafeCPReadPointer;
+	// Super Monkey Ball Adventure require this.
+	// Because the read&check-PEToken-loop stays in its JITed block I suppose.
+	// So no possiblity to ack the Token irq by the scheduler until some sort of PPC watchdog do its mess.
+	volatile u16 PEToken;
+
+	volatile u32 bFF_GPLinkEnable;
+	volatile u32 bFF_GPReadEnable;
+	volatile u32 bFF_BPEnable;
+	volatile u32 bFF_BPInt;
+	volatile u32 bFF_Breakpoint;
+
+	volatile u32 CPCmdIdle;
+	volatile u32 CPReadIdle;        
+
+	volatile u32 bFF_LoWatermarkInt;
+	volatile u32 bFF_HiWatermarkInt;
+
+	volatile u32 bFF_LoWatermark;
+	volatile u32 bFF_HiWatermark;
+
+	// for GP watchdog hack
+	volatile u32 Fake_GPWDToken; // cicular incrementer
+	volatile u32 isGpuReadingData;
+};
+
+class VideoBackend
+{
+public:
+	virtual ~VideoBackend() {}
+
+	virtual void EmuStateChange(EMUSTATE_CHANGE) = 0;
+
+	virtual void UpdateFPSDisplay(const char*) = 0;
+
+	virtual unsigned int PeekMessages() = 0;
+
+	virtual bool Initialize(void *&) = 0;
+	virtual void Shutdown() = 0;
+	virtual void RunLoop(bool enable) = 0;
+
+	virtual std::string GetName() = 0;
+	virtual std::string GetDisplayName() { return GetName(); }
+
+	virtual void ShowConfig(void*) {}
+
+	virtual void Video_Prepare() = 0;
+	virtual void Video_EnterLoop() = 0;
+	virtual void Video_ExitLoop() = 0;
+	virtual void Video_Cleanup() = 0; // called from gl/d3d thread
+
+	virtual void Video_BeginField(u32, FieldType, u32, u32) = 0;
+	virtual void Video_EndField() = 0;
+
+	virtual u32 Video_AccessEFB(EFBAccessType, u32, u32, u32) = 0;
+	virtual u32 Video_GetQueryResult(PerfQueryType type) = 0;
+
+	virtual void Video_AddMessage(const char* pstr, unsigned int milliseconds) = 0;
+	virtual void Video_ClearMessages() = 0;
+	virtual bool Video_Screenshot(const char* filename) = 0;
+
+	virtual void Video_SetRendering(bool bEnabled) = 0;
+
+	virtual void Video_GatherPipeBursted() = 0;
+
+	virtual bool Video_IsPossibleWaitingSetDrawDone() = 0;
+	virtual bool Video_IsHiWatermarkActive() = 0;
+	virtual void Video_AbortFrame() = 0;
+
+	virtual readFn16  Video_CPRead16() = 0;
+	virtual writeFn16 Video_CPWrite16() = 0;
+	virtual readFn16  Video_PERead16() = 0;
+	virtual writeFn16 Video_PEWrite16() = 0;
+	virtual writeFn32 Video_PEWrite32() = 0;
+
+	static void PopulateList();
+	static void ClearList();
+	static void ActivateBackend(const std::string& name);
+
+	// waits until is paused and fully idle, and acquires a lock on that state.
+	// or, if doLock is false, releases a lock on that state and optionally unpauses.
+	// calls must be balanced and non-recursive (once with doLock true, then once with doLock false).
+	virtual void PauseAndLock(bool doLock, bool unpauseOnUnlock=true) = 0;
+
+	// the implementation needs not do synchronization logic, because calls to it are surrounded by PauseAndLock now
+	virtual void DoState(PointerWrap &p) = 0;
+	
+	virtual void CheckInvalidState() = 0;
+};
+
+extern std::vector<VideoBackend*> g_available_video_backends;
+extern VideoBackend* g_video_backend;
+
+// inherited by dx9/dx11/ogl backends
+class VideoBackendHardware : public VideoBackend
+{
+	void RunLoop(bool enable);
+	bool Initialize(void *&) { InitializeShared(); return true; }
+
+	void EmuStateChange(EMUSTATE_CHANGE);
+
+	void Video_EnterLoop();
+	void Video_ExitLoop();
+	void Video_BeginField(u32, FieldType, u32, u32);
+	void Video_EndField();
+
+	u32 Video_AccessEFB(EFBAccessType, u32, u32, u32);
+	u32 Video_GetQueryResult(PerfQueryType type);
+	
+	void Video_AddMessage(const char* pstr, unsigned int milliseconds);
+	void Video_ClearMessages();
+	bool Video_Screenshot(const char* filename);
+
+	void Video_SetRendering(bool bEnabled);
+
+	void Video_GatherPipeBursted();
+
+	bool Video_IsPossibleWaitingSetDrawDone();
+	bool Video_IsHiWatermarkActive();
+	void Video_AbortFrame();
+
+	readFn16  Video_CPRead16();
+	writeFn16 Video_CPWrite16();
+	readFn16  Video_PERead16();
+	writeFn16 Video_PEWrite16();
+	writeFn32 Video_PEWrite32();
+
+	void PauseAndLock(bool doLock, bool unpauseOnUnlock=true);
+	void DoState(PointerWrap &p);
+	
+	bool m_invalid;
+	
+public:
+	 void CheckInvalidState();
+
+protected:
+	void InitializeShared();
+	void InvalidState();
+};
+
+#endif