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engines/hpl1/engine/graphics/RenderState.h

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/*
+ * Copyright (C) 2006-2010 - Frictional Games
+ *
+ * This file is part of HPL1 Engine.
+ */
+
+#ifndef HPL_RENDER_SET_H
+#define HPL_RENDER_SET_H
+
+#include "hpl1/engine/graphics/GPUProgram.h"
+#include "hpl1/engine/graphics/GraphicsTypes.h"
+#include "hpl1/engine/graphics/Material.h"
+#include "hpl1/engine/math/MathTypes.h"
+#include "hpl1/engine/system/SystemTypes.h"
+
+namespace hpl {
+
+class cRenderSettings;
+class iRenderable;
+class iLight3D;
+class cSector;
+
+enum eRenderStateType {
+	eRenderStateType_Sector = 0,
+	eRenderStateType_Pass = 1,
+	eRenderStateType_DepthTest = 2,
+	eRenderStateType_Depth = 3,
+	eRenderStateType_AlphaMode = 4,
+	eRenderStateType_BlendMode = 5,
+	eRenderStateType_VertexProgram = 6,
+	eRenderStateType_FragmentProgram = 7,
+	eRenderStateType_Texture = 8,
+	eRenderStateType_VertexBuffer = 9,
+	eRenderStateType_Matrix = 10,
+	eRenderStateType_Render = 11,
+	eRenderStateType_GpuProgram = 12,
+	eRenderStateType_LastEnum = 13
+};
+///////////// INTERFACE ////////////////////
+
+class iRenderState {
+public:
+	iRenderState() {}
+
+	int Compare(const iRenderState *apState) const;
+	void SetMode(cRenderSettings *apSettings);
+
+	void Set(const iRenderState *apState);
+
+	eRenderStateType mType;
+
+	// Properties:
+	// Sector
+	cSector *mpSector;
+
+	// Pass
+	int mlPass;
+
+	// DepthTest
+	bool mbDepthTest;
+
+	// Depth:
+	float mfZ;
+
+	// Alpha
+	eMaterialAlphaMode mAlphaMode;
+
+	// Blend
+	eMaterialBlendMode mBlendMode;
+	eMaterialChannelMode mChannelMode;
+
+	iGpuProgram *gpuProgram;
+	iMaterialProgramSetup *gpuProgramSetup;
+
+	// Vertex program
+	iGpuProgram *mpVtxProgram;
+	iMaterialProgramSetup *mpVtxProgramSetup;
+	bool mbUsesLight;
+	bool mbUsesEye;
+	iLight3D *mpLight;
+
+	// Fragment program
+	iGpuProgram *mpFragProgram;
+	iMaterialProgramSetup *mpFragProgramSetup;
+
+	// Texture
+	iTexture *mpTexture[MAX_TEXTUREUNITS];
+	eMaterialBlendMode mTextureBlend[MAX_TEXTUREUNITS];
+
+	// Vertex buffer
+	iVertexBuffer *mpVtxBuffer;
+
+	// Matrix
+	cMatrixf *mpModelMatrix;
+	cMatrixf *mpInvModelMatrix;
+
+	// Scale
+	cVector3f mvScale;
+
+	// Render
+	iRenderable *mpObject;
+
+private:
+	// Compare
+	int CompareSector(const iRenderState *apState) const;
+	int ComparePass(const iRenderState *apState) const;
+	int CompareDepthTest(const iRenderState *apState) const;
+	int CompareDepth(const iRenderState *apState) const;
+	int CompareAlpha(const iRenderState *apState) const;
+	int CompareBlend(const iRenderState *apState) const;
+	int CompareVtxProg(const iRenderState *apState) const;
+	int CompareFragProg(const iRenderState *apState) const;
+	int CompareTexture(const iRenderState *apState) const;
+	int CompareVtxBuff(const iRenderState *apState) const;
+	int CompareMatrix(const iRenderState *apState) const;
+	int CompareRender(const iRenderState *apState) const;
+	int compareGpuProgram(const iRenderState *state) const;
+	// Set mode
+	void SetSectorMode(cRenderSettings *apSettings);
+	void SetPassMode(cRenderSettings *apSettings);
+	void SetDepthTestMode(cRenderSettings *apSettings);
+	void SetDepthMode(cRenderSettings *apSettings);
+	void SetBlendMode(cRenderSettings *apSettings);
+	void SetAlphaMode(cRenderSettings *apSettings);
+	void setGpuProgMode(cRenderSettings *settings);
+	void SetTextureMode(cRenderSettings *apSettings);
+	void SetVtxBuffMode(cRenderSettings *apSettings);
+	void SetMatrixMode(cRenderSettings *apSettings);
+	void SetRenderMode(cRenderSettings *apSettings);
+};
+
+} // namespace hpl
+
+#endif // HPL_RENDER_SET_H