OpenSubdiv/examples/glBatchViewer/delegate.h
2013-05-14 10:48:48 -07:00

104 lines
4.3 KiB
C++

//
// Copyright (C) Pixar. All rights reserved.
//
// This license governs use of the accompanying software. If you
// use the software, you accept this license. If you do not accept
// the license, do not use the software.
//
// 1. Definitions
// The terms "reproduce," "reproduction," "derivative works," and
// "distribution" have the same meaning here as under U.S.
// copyright law. A "contribution" is the original software, or
// any additions or changes to the software.
// A "contributor" is any person or entity that distributes its
// contribution under this license.
// "Licensed patents" are a contributor's patent claims that read
// directly on its contribution.
//
// 2. Grant of Rights
// (A) Copyright Grant- Subject to the terms of this license,
// including the license conditions and limitations in section 3,
// each contributor grants you a non-exclusive, worldwide,
// royalty-free copyright license to reproduce its contribution,
// prepare derivative works of its contribution, and distribute
// its contribution or any derivative works that you create.
// (B) Patent Grant- Subject to the terms of this license,
// including the license conditions and limitations in section 3,
// each contributor grants you a non-exclusive, worldwide,
// royalty-free license under its licensed patents to make, have
// made, use, sell, offer for sale, import, and/or otherwise
// dispose of its contribution in the software or derivative works
// of the contribution in the software.
//
// 3. Conditions and Limitations
// (A) No Trademark License- This license does not grant you
// rights to use any contributor's name, logo, or trademarks.
// (B) If you bring a patent claim against any contributor over
// patents that you claim are infringed by the software, your
// patent license from such contributor to the software ends
// automatically.
// (C) If you distribute any portion of the software, you must
// retain all copyright, patent, trademark, and attribution
// notices that are present in the software.
// (D) If you distribute any portion of the software in source
// code form, you may do so only under this license by including a
// complete copy of this license with your distribution. If you
// distribute any portion of the software in compiled or object
// code form, you may only do so under a license that complies
// with this license.
// (E) The software is licensed "as-is." You bear the risk of
// using it. The contributors give no express warranties,
// guarantees or conditions. You may have additional consumer
// rights under your local laws which this license cannot change.
// To the extent permitted under your local laws, the contributors
// exclude the implied warranties of merchantability, fitness for
// a particular purpose and non-infringement.
//
#ifndef DELEGATE_H
#define DELEGATE_H
#include <osd/cpuGLVertexBuffer.h>
#include <osd/glDrawContext.h>
#include <osd/glDrawRegistry.h>
#include <osd_util/batch.h>
#include "effect.h"
#include "effectRegistry.h"
class MyDrawContext : public OpenSubdiv::OsdGLDrawContext {
public:
virtual ~MyDrawContext();
static MyDrawContext *Create(OpenSubdiv::FarMesh<OpenSubdiv::OsdVertex> const *farMesh,
bool requireFVarData=false);
static MyDrawContext *Create(OpenSubdiv::FarPatchTables const *patchTables,
bool requireFVarData=false);
//private:
GLuint vao;
private:
MyDrawContext();
};
class MyDrawDelegate {
public:
void BindBatch(OpenSubdiv::OsdUtilMeshBatchBase<MyDrawContext> *batch);
void UnbindBatch(OpenSubdiv::OsdUtilMeshBatchBase<MyDrawContext> *batch);
void BindEffect(MyEffect &effect);
void UnbindEffect(MyEffect &effect);
void DrawElements(MyEffect &effect, OpenSubdiv::OsdDrawContext::PatchArray const &patchArray);
void ResetNumDrawCalls() { _numDrawCalls = 0; }
int GetNumDrawCalls() const { return _numDrawCalls; }
private:
MyDrawConfig *GetDrawConfig(MyEffect &effect, OpenSubdiv::OsdDrawContext::PatchDescriptor desc);
MyEffectRegistry _effectRegistry;
int _numDrawCalls;
};
#endif /* DELEGATE_H */