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engines/hpl1/engine/impl/VertexBufferVBO.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_VERTEXBUFFER_VBO_H
+#define HPL_VERTEXBUFFER_VBO_H
+
+#include "common/scummsys.h"
+#include "hpl1/engine/graphics/VertexBuffer.h"
+#include "hpl1/opengl.h"
+
+#ifdef HPL1_USE_OPENGL
+
+namespace hpl {
+
+class cVertexBufferVBO : public iVertexBuffer {
+public:
+	cVertexBufferVBO(iLowLevelGraphics *apLowLevelGraphics, tVertexFlag aFlags,
+					 eVertexBufferDrawType aDrawType, eVertexBufferUsageType aUsageType,
+					 int alReserveVtxSize, int alReserveIdxSize);
+	~cVertexBufferVBO();
+
+	void AddVertex(tVertexFlag aType, const cVector3f &avVtx);
+	void AddColor(tVertexFlag aType, const cColor &aColor);
+	void AddIndex(unsigned int alIndex);
+
+	bool Compile(tVertexCompileFlag aFlags);
+	void UpdateData(tVertexFlag aTypes, bool abIndices);
+
+	void CreateShadowDouble(bool abUpdateData);
+
+	void Transform(const cMatrixf &mtxTransform);
+
+	void Draw(eVertexBufferDrawType aDrawType = eVertexBufferDrawType_LastEnum);
+	void DrawIndices(unsigned int *apIndices, int alCount,
+					 eVertexBufferDrawType aDrawType = eVertexBufferDrawType_LastEnum);
+
+	void Bind();
+	void UnBind();
+
+	iVertexBuffer *CreateCopy(eVertexBufferUsageType aUsageType);
+
+	cBoundingVolume CreateBoundingVolume();
+
+	int GetVertexNum();
+	int GetIndexNum();
+
+	float *GetArray(tVertexFlag aType);
+	unsigned int *GetIndices();
+
+	void ResizeArray(tVertexFlag aType, int alSize);
+	void ResizeIndices(int alSize);
+
+	// For debugging purposes
+	cVector3f GetVector3(tVertexFlag aType, unsigned alIdx);
+	cVector3f GetVector4(tVertexFlag aType, unsigned alIdx);
+	cColor GetColor(tVertexFlag aType, unsigned alIdx);
+	unsigned int GetIndex(tVertexFlag aType, unsigned alIdx);
+
+private:
+	int GetElementNum(tVertexFlag aFlag);
+
+	void SetVertexStates(tVertexFlag aFlags);
+
+	unsigned int mlElementHandle;
+
+	tFloatVec mvVertexArray[klNumOfVertexFlags];
+
+	unsigned int mvArrayHandle[klNumOfVertexFlags];
+
+	tUIntVec mvIndexArray;
+
+	bool mbHasShadowDouble;
+
+	bool mbCompiled;
+};
+
+} // namespace hpl
+
+#endif // HPL1_USE_OPENGL
+#endif // HPL_RENDERER3D_VBO_H