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//
// Copyright 2013 Pixar
//
// Licensed under the Apache License, Version 2.0 (the "Apache License")
// with the following modification; you may not use this file except in
// compliance with the Apache License and the following modification to it:
// Section 6. Trademarks. is deleted and replaced with:
//
// 6. Trademarks. This License does not grant permission to use the trade
// names, trademarks, service marks, or product names of the Licensor
// and its affiliates, except as required to comply with Section 4(c) of
// the License and to reproduce the content of the NOTICE file.
//
// You may obtain a copy of the Apache License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the Apache License with the above modification is
// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the Apache License for the specific
// language governing permissions and limitations under the Apache License.
//
#ifndef OPENSUBDIV_EXAMPLES_MTL_PTEX_MIPMAP_TEXTURE_H
#define OPENSUBDIV_EXAMPLES_MTL_PTEX_MIPMAP_TEXTURE_H
#include <opensubdiv/osd/mtlCommon.h>
#include <opensubdiv/osd/nonCopyable.h>
#include <Ptexture.h>
@protocol MTLBuffer;
@protocol MTLTexture;
@class MTLTextureDescriptor;
class MTLPtexMipmapTexture : OpenSubdiv::Osd::NonCopyable<MTLPtexMipmapTexture> {
public:
static MTLPtexMipmapTexture * Create(OpenSubdiv::Osd::MTLContext * deviceContext,
PtexTexture * reader,
int maxLevels = 10);
static const char* GetShaderSource();
id<MTLBuffer> GetLayoutBuffer() const { return _layout; }
id<MTLTexture> GetTexelsTexture() const { return _texels; }
private:
MTLPtexMipmapTexture();
id<MTLBuffer> _layout;
id<MTLTexture> _texels;
MTLTextureDescriptor* _textureDescriptor;
};
#endif // OPENSUBDIV_EXAMPLES_MTL_PTEX_TEXTURE_H
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