mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
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78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
//
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// Copyright 2013 Pixar
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License
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// and the following modification to it: Section 6 Trademarks.
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// deleted and replaced with:
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//
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// 6. Trademarks. This License does not grant permission to use the
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// trade names, trademarks, service marks, or product names of the
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// Licensor and its affiliates, except as required for reproducing
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// the content of the NOTICE file.
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//
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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// either express or implied. See the License for the specific
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// language governing permissions and limitations under the
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// License.
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//
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#ifndef DELEGATE_H
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#define DELEGATE_H
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#include <osd/cpuGLVertexBuffer.h>
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#include <osd/glDrawContext.h>
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#include <osd/glDrawRegistry.h>
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#include <osdutil/batch.h>
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#include "effect.h"
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#include "effectRegistry.h"
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class MyDrawContext : public OpenSubdiv::OsdGLDrawContext {
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public:
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virtual ~MyDrawContext();
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static MyDrawContext *Create(OpenSubdiv::FarPatchTables const *patchTables,
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bool requireFVarData=false);
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GLuint GetVertexArray() const { return _vao; }
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private:
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MyDrawContext();
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GLuint _vao;
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};
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class MyDrawDelegate {
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public:
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typedef MyEffect * EffectHandle;
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void Bind(OpenSubdiv::OsdUtilMeshBatchBase<MyDrawContext> *batch, EffectHandle const &effect);
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void Unbind(OpenSubdiv::OsdUtilMeshBatchBase<MyDrawContext> *batch, EffectHandle const &effect);
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void Begin();
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void End();
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void DrawElements(OpenSubdiv::OsdDrawContext::PatchArray const &patchArray);
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bool IsCombinable(EffectHandle const &a, EffectHandle const &b) const;
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void ResetNumDrawCalls() { _numDrawCalls = 0; }
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int GetNumDrawCalls() const { return _numDrawCalls; }
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private:
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MyDrawConfig *GetDrawConfig(EffectHandle &effect, OpenSubdiv::OsdDrawContext::PatchDescriptor desc);
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MyEffectRegistry _effectRegistry;
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int _numDrawCalls;
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OpenSubdiv::OsdUtilMeshBatchBase<MyDrawContext> *_currentBatch;
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EffectHandle _currentEffect;
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};
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#endif /* DELEGATE_H */
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