ppsspp/GPU/GLES/DisplayListInterpreter.h

// Copyright (c) 2012- PPSSPP 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 or later versions.

// 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 git repository and contact information can be found at
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.

#pragma once

#include <list>
#include <deque>

#include "../GPUCommon.h"
#include "Framebuffer.h"
#include "VertexDecoder.h"
#include "TransformPipeline.h"
#include "gfx_es2/fbo.h"

class ShaderManager;
class LinkedShader;

class GLES_GPU : public GPUCommon
{
public:
	GLES_GPU();
	~GLES_GPU();
	virtual void InitClear();
	virtual void PreExecuteOp(u32 op, u32 diff);
	virtual void ExecuteOp(u32 op, u32 diff);
	virtual void DrawSync(int mode);
	virtual void Continue();
	virtual void Break();
	virtual void EnableInterrupts(bool enable) {
		interruptsEnabled_ = enable;
	}

	virtual void SetDisplayFramebuffer(u32 framebuf, u32 stride, int format);
	virtual void CopyDisplayToOutput();
	virtual void BeginFrame();
	virtual void UpdateStats();
	virtual void InvalidateCache(u32 addr, int size);
	virtual void InvalidateCacheHint(u32 addr, int size);
	virtual void DeviceLost();  // Only happens on Android. Drop all textures and shaders.

	virtual void DumpNextFrame();
	virtual void Flush();
	virtual void DoState(PointerWrap &p);

	// Called by the window system if the window size changed. This will be reflected in PSPCoreParam.pixel*.
	virtual void Resized();

private:
	void DoBlockTransfer();

	// Applies states for debugging if enabled.
	void BeginDebugDraw();
	void EndDebugDraw();

	// Deletes old FBOs.
	void DecimateFBOs();
	void DestroyAllFBOs();

	FramebufferManager framebufferManager;
	TransformDrawEngine transformDraw_;
	ShaderManager *shaderManager_;
	u8 *flushBeforeCommand_;
	bool interruptsEnabled_;
	bool resized_;

	u32 displayFramebufPtr_;
	u32 displayStride_;
	int displayFormat_;

	struct CmdProcessorState {
		u32 pc;
		u32 stallAddr;
		int subIntrBase;
	};

	struct VirtualFramebuffer {
		int last_frame_used;

		u32 fb_address;
		u32 z_address;
		int fb_stride;
		int z_stride;

		// There's also a top left of the drawing region, but meh...
		int width;
		int height;

		int format;  // virtual, right now they are all RGBA8888
		FBOColorDepth colorDepth;
		FBO *fbo;
	};

	VirtualFramebuffer *displayFramebuf_;
	VirtualFramebuffer *prevDisplayFramebuf_;
	VirtualFramebuffer *prevPrevDisplayFramebuf_;

	void SetRenderFrameBuffer();  // Uses parameters computed from gstate
	// TODO: Break out into some form of FBO manager
	VirtualFramebuffer *GetDisplayFBO();

	std::list<VirtualFramebuffer *> vfbs_;

	VirtualFramebuffer *currentRenderVfb_;

	u8 bezierBuf[16000];
};