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// Copyright (C) 2003 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#ifndef VIDEO_BACKEND_H_
#define VIDEO_BACKEND_H_
#include <string>
#include <vector>
#include "ChunkFile.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 DoState(PointerWrap &p) = 0;
virtual void RunLoop(bool enable) = 0;
virtual std::string GetName() = 0;
virtual void ShowConfig(void*) {}
virtual void Video_Prepare() = 0;
virtual void Video_EnterLoop() = 0;
virtual void Video_ExitLoop() = 0;
virtual void Video_BeginField(u32, FieldType, u32, u32) = 0;
virtual void Video_EndField() = 0;
virtual u32 Video_AccessEFB(EFBAccessType, u32, u32, u32) = 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 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);
};
extern std::vector<VideoBackend*> g_available_video_backends;
extern VideoBackend* g_video_backend;
// inherited by dx9/dx11/ogl backends
class VideoBackendHardware : public VideoBackend
{
void DoState(PointerWrap &p);
void RunLoop(bool enable);
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);
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();
void Video_AbortFrame();
readFn16 Video_CPRead16();
writeFn16 Video_CPWrite16();
readFn16 Video_PERead16();
writeFn16 Video_PEWrite16();
writeFn32 Video_PEWrite32();
};
#endif
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