/****************************************************************************
Copyright (c) 2014 Chukong Technologies Inc.
http://www.cocos2d-x.org
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#ifndef __CCMESH_H__
#define __CCMESH_H__
#include <string>
#include <vector>
#include "3d/CCBundle3DData.h"
#include "base/CCRef.h"
#include "base/ccTypes.h"
#include "math/CCMath.h"
#include "renderer/CCGLProgram.h"
NS_CC_BEGIN
class EventListenerCustom;
class EventCustom;
class RenderMeshData
{
friend class Mesh;
public:
RenderMeshData(): _vertexsizeBytes(0)
}
bool hasVertexAttrib(int attrib);
bool init(const std::vector<float>& positions, const std::vector<float>& normals, const std::vector<float>& texs, const std::vector<unsigned short>& indices);
bool init(const std::vector<float>& vertices, int vertexSizeInFloat, const std::vector<unsigned short>& indices, const std::vector<MeshVertexAttrib>& attribs);
protected:
int calVertexSizeBytes();
int _vertexsizeBytes;
ssize_t _vertexNum;
std::vector<float> _vertexs;
std::vector<unsigned short> _indices;
std::vector<MeshVertexAttrib> _vertexAttribs;
};
/**
* Mesh: Geometry with a collection of vertex.
* Supporting various vertex formats.
*/
class Mesh : public Ref
/** Defines supported index formats. */
enum class IndexFormat
INDEX8 = GL_UNSIGNED_BYTE,
INDEX16 = GL_UNSIGNED_SHORT,
/** Defines supported primitive types. */
enum class PrimitiveType
TRIANGLES = GL_TRIANGLES,
TRIANGLE_STRIP = GL_TRIANGLE_STRIP,
LINES = GL_LINES,
LINE_STRIP = GL_LINE_STRIP,
POINTS = GL_POINTS
/**create mesh from positions, normals, and so on*/
static Mesh* create(const std::vector<float>& positions, const std::vector<float>& normals, const std::vector<float>& texs, const std::vector<unsigned short>& indices);
/**create mesh with vertex attributes*/
CC_DEPRECATED_ATTRIBUTE static Mesh* create(const std::vector<float>& vertices, int vertexSizeInFloat, const std::vector<unsigned short>& indices, int numIndex, const std::vector<MeshVertexAttrib>& attribs, int attribCount) { return create(vertices, vertexSizeInFloat, indices, attribs); }
static Mesh* create(const std::vector<float>& vertices, int vertexSizeInFloat, const std::vector<unsigned short>& indices, const std::vector<MeshVertexAttrib>& attribs);
/**get vertex buffer*/
inline GLuint getVertexBuffer() const { return _vertexBuffer; }
/**get mesh vertex attribute count*/
ssize_t getMeshVertexAttribCount() const { return _renderdata._vertexAttribs.size(); }
/**get MeshVertexAttribute by index*/
const MeshVertexAttrib& getMeshVertexAttribute(int idx) const { return _renderdata._vertexAttribs[idx]; }
/**has vertex attribute?*/
bool hasVertexAttrib(int attrib) { return _renderdata.hasVertexAttrib(attrib); }
/**get per vertex size in bytes*/
int getVertexSizeInBytes() const { return _renderdata._vertexsizeBytes; }
/** get primitive type*/
PrimitiveType getPrimitiveType() const { return _primitiveType; }
/**get index count*/
ssize_t getIndexCount() const { return _indexCount; }
/**get index format*/
IndexFormat getIndexFormat() const { return _indexFormat; }
/**get index buffer*/
GLuint getIndexBuffer() const {return _indexBuffer; }
/**build vertex buffer from renderdata*/
void restore();
CC_CONSTRUCTOR_ACCESS:
Mesh();
virtual ~Mesh();
/**init mesh*/
/**build buffer*/
void buildBuffer();
/**free buffer*/
void cleanAndFreeBuffers();
PrimitiveType _primitiveType;
IndexFormat _indexFormat;
GLuint _vertexBuffer;
GLuint _indexBuffer;
ssize_t _indexCount;
RenderMeshData _renderdata;
* Mesh Cache
class MeshCache
/**get & destroy*/
static MeshCache* getInstance();
static void destroyInstance();
/**get mesh from cache*/
Mesh* getMesh(const std::string& key) const;
/**add mesh to cache*/
bool addMesh(const std::string& key, Mesh* mesh);
/**remove all meshes*/
void removeAllMeshes();
/**remove unused meshes*/
void removeUnusedMesh();
#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)
void listenBackToForeground(EventCustom* event);
#endif
MeshCache();
~MeshCache();
static MeshCache* _cacheInstance;//instance
std::unordered_map<std::string, Mesh*> _meshes; //cached meshes
EventListenerCustom* _backToForegroundlistener;
NS_CC_END
#endif // __CCMESH_H_