capabilities.h

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//
// Copyright 2021 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 PXR_IMAGING_HGI_GL_CAPABILITIES_H
#define PXR_IMAGING_HGI_GL_CAPABILITIES_H

#include "pxr/pxr.h"
#include "pxr/imaging/hgiGL/api.h"
#include "pxr/imaging/hgi/capabilities.h"

PXR_NAMESPACE_OPEN_SCOPE

/// \class HgiGLCapabilities
///
/// Reports the capabilities of the HgiGL device.
///
class HgiGLCapabilities final : public HgiCapabilities
{
public:
    HGIGL_API
    ~HgiGLCapabilities() override;

public:
    friend class HgiGL;

    HGIGL_API
    HgiGLCapabilities();

    HGIGL_API
    int GetAPIVersion() const override;

    HGIGL_API
    int GetShaderVersion() const override;

private:
    void _LoadCapabilities();

    // GL version
    int _glVersion;   // 400 (4.0), 410 (4.1), ...
    
    // GLSL version 
    int _glslVersion; // 400, 410, ...
};

PXR_NAMESPACE_CLOSE_SCOPE

#endif