OpenSubdiv/opensubdiv/osd/glPtexMipmapTexture.h

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//
// Copyright 2013 Pixar
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License
// and the following modification to it: Section 6 Trademarks.
// 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 for reproducing
// the content of the NOTICE file.
//
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
// either express or implied. See the License for the specific
// language governing permissions and limitations under the
// License.
//
#ifndef OSD_GL_PTEX_MIPMAP_TEXTURE_H
#define OSD_GL_PTEX_MIPMAP_TEXTURE_H
#include "../version.h"
#include "../osd/nonCopyable.h"
#include "../osd/opengl.h"
class PtexTexture;
namespace OpenSubdiv {
namespace OPENSUBDIV_VERSION {
class OsdGLPtexMipmapTexture : OsdNonCopyable<OsdGLPtexMipmapTexture> {
public:
static OsdGLPtexMipmapTexture * Create(PtexTexture * reader,
int maxLevels=10);
/// Returns the texture buffer containing the layout of the ptex faces
/// in the texels texture array.
GLuint GetLayoutTextureBuffer() const { return _layout; }
/// Returns the texels texture array.
GLuint GetTexelsTexture() const { return _texels; }
~OsdGLPtexMipmapTexture();
private:
OsdGLPtexMipmapTexture();
GLsizei _width, // widht / height / depth of the 3D texel buffer
_height,
_depth;
GLint _format; // texel color format
GLuint _layout, // per-face lookup table
_texels; // texel data
};
} // end namespace OPENSUBDIV_VERSION
using namespace OPENSUBDIV_VERSION;
} // end namespace OpenSubdiv
#endif // OSD_GL_PTEX_MIPMAP_TEXTURE_H