ppsspp/GPU/GLES/GPU_GLES.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 "GPU/GPUCommon.h"
#include "GPU/GLES/FBO.h"
#include "GPU/GLES/Framebuffer.h"
#include "GPU/GLES/DrawEngineGLES.h"
#include "GPU/GLES/TextureCache.h"
#include "GPU/GLES/DepalettizeShader.h"
#include "GPU/GLES/FragmentTestCache.h"

class ShaderManager;
class LinkedShader;
class GraphicsContext;

class GPU_GLES : public GPUCommon {
public:
	GPU_GLES(GraphicsContext *gfxCtx);
	~GPU_GLES();

	// This gets called on startup and when we get back from settings.
	void CheckGPUFeatures();

	void PreExecuteOp(u32 op, u32 diff) override;
	void Execute_Generic(u32 op, u32 diff);
	void ExecuteOp(u32 op, u32 diff) override;

	void ReapplyGfxStateInternal() override;
	void SetDisplayFramebuffer(u32 framebuf, u32 stride, GEBufferFormat format) override;
	void BeginFrame() override;
	void GetStats(char *buffer, size_t bufsize) override;

	void ClearCacheNextFrame() override;
	void DeviceLost() override;  // Only happens on Android. Drop all textures and shaders.
	void DeviceRestore() override;

	void DumpNextFrame() override;
	void DoState(PointerWrap &p) override;

	void ClearShaderCache() override;
	void CleanupBeforeUI() override;
	bool DecodeTexture(u8 *dest, const GPUgstate &state) override {
		return textureCacheGL_->DecodeTexture(dest, state);
	}
	bool FramebufferDirty() override;
	bool FramebufferReallyDirty() override;

	void GetReportingInfo(std::string &primaryInfo, std::string &fullInfo) override {
		primaryInfo = reportingPrimaryInfo_;
		fullInfo = reportingFullInfo_;
	}
	std::vector<FramebufferInfo> GetFramebufferList() override;

	bool GetCurrentFramebuffer(GPUDebugBuffer &buffer, GPUDebugFramebufferType type, int maxRes) override;
	bool GetCurrentDepthbuffer(GPUDebugBuffer &buffer) override;
	bool GetCurrentStencilbuffer(GPUDebugBuffer &buffer) override;
	bool GetCurrentTexture(GPUDebugBuffer &buffer, int level) override;
	bool GetCurrentClut(GPUDebugBuffer &buffer) override;
	static bool GetOutputFramebuffer(GPUDebugBuffer &buffer);
	bool GetCurrentSimpleVertices(int count, std::vector<GPUDebugVertex> &vertices, std::vector<u16> &indices) override;

	bool DescribeCodePtr(const u8 *ptr, std::string &name) override;

	typedef void (GPU_GLES::*CmdFunc)(u32 op, u32 diff);
	struct CommandInfo {
		u8 flags;
		GPU_GLES::CmdFunc func;
	};

	void Execute_Vaddr(u32 op, u32 diff);
	void Execute_Iaddr(u32 op, u32 diff);
	void Execute_Prim(u32 op, u32 diff);
	void Execute_Bezier(u32 op, u32 diff);
	void Execute_Spline(u32 op, u32 diff);
	void Execute_VertexType(u32 op, u32 diff);
	void Execute_VertexTypeSkinning(u32 op, u32 diff);
	void Execute_Region(u32 op, u32 diff);
	void Execute_Scissor(u32 op, u32 diff);
	void Execute_FramebufType(u32 op, u32 diff);
	void Execute_ViewportType(u32 op, u32 diff);
	void Execute_ViewportZType(u32 op, u32 diff);
	void Execute_TexScaleU(u32 op, u32 diff);
	void Execute_TexScaleV(u32 op, u32 diff);
	void Execute_TexOffsetU(u32 op, u32 diff);
	void Execute_TexOffsetV(u32 op, u32 diff);
	void Execute_TexAddr0(u32 op, u32 diff);
	void Execute_TexAddrN(u32 op, u32 diff);
	void Execute_TexBufw0(u32 op, u32 diff);
	void Execute_TexBufwN(u32 op, u32 diff);
	void Execute_TexSize0(u32 op, u32 diff);
	void Execute_TexSizeN(u32 op, u32 diff);
	void Execute_TexFormat(u32 op, u32 diff);
	void Execute_TexMapMode(u32 op, u32 diff);
	void Execute_TexParamType(u32 op, u32 diff);
	void Execute_TexEnvColor(u32 op, u32 diff);
	void Execute_TexLevel(u32 op, u32 diff);
	void Execute_LoadClut(u32 op, u32 diff);
	void Execute_ClutFormat(u32 op, u32 diff);
	void Execute_Ambient(u32 op, u32 diff);
	void Execute_MaterialDiffuse(u32 op, u32 diff);
	void Execute_MaterialEmissive(u32 op, u32 diff);
	void Execute_MaterialAmbient(u32 op, u32 diff);
	void Execute_MaterialSpecular(u32 op, u32 diff);
	void Execute_Light0Param(u32 op, u32 diff);
	void Execute_Light1Param(u32 op, u32 diff);
	void Execute_Light2Param(u32 op, u32 diff);
	void Execute_Light3Param(u32 op, u32 diff);
	void Execute_FogColor(u32 op, u32 diff);
	void Execute_FogCoef(u32 op, u32 diff);
	void Execute_ColorTestMask(u32 op, u32 diff);
	void Execute_AlphaTest(u32 op, u32 diff);
	void Execute_StencilTest(u32 op, u32 diff);
	void Execute_ColorRef(u32 op, u32 diff);
	void Execute_WorldMtxNum(u32 op, u32 diff);
	void Execute_WorldMtxData(u32 op, u32 diff);
	void Execute_ViewMtxNum(u32 op, u32 diff);
	void Execute_ViewMtxData(u32 op, u32 diff);
	void Execute_ProjMtxNum(u32 op, u32 diff);
	void Execute_ProjMtxData(u32 op, u32 diff);
	void Execute_TgenMtxNum(u32 op, u32 diff);
	void Execute_TgenMtxData(u32 op, u32 diff);
	void Execute_BoneMtxNum(u32 op, u32 diff);
	void Execute_BoneMtxData(u32 op, u32 diff);
	void Execute_BlockTransferStart(u32 op, u32 diff);

	// Using string because it's generic - makes no assumptions on the size of the shader IDs of this backend.
	std::vector<std::string> DebugGetShaderIDs(DebugShaderType shader) override;
	std::string DebugGetShaderString(std::string id, DebugShaderType shader, DebugShaderStringType stringType) override;

protected:
	void FastRunLoop(DisplayList &list) override;
	void FastLoadBoneMatrix(u32 target) override;
	void FinishDeferred() override;

private:
	void Flush() {
		drawEngine_.Flush();
	}
	void CheckFlushOp(int cmd, u32 diff);
	void BuildReportingInfo();

	void InitClearInternal() override;
	void BeginFrameInternal() override;
	void CopyDisplayToOutputInternal() override;
	void ReinitializeInternal() override;

	inline void UpdateVsyncInterval(bool force);
	void UpdateCmdInfo();

	static CommandInfo cmdInfo_[256];

	FramebufferManager *framebufferManagerGL_;
	TextureCache *textureCacheGL_;
	DepalShaderCache depalShaderCache_;
	DrawEngineGLES drawEngine_;
	FragmentTestCache fragmentTestCache_;
	ShaderManager *shaderManager_;

	int lastVsync_;

	std::string reportingPrimaryInfo_;
	std::string reportingFullInfo_;

	GraphicsContext *gfxCtx_;
	std::string shaderCachePath_;
};