texture.h

//
// Copyright 2019 Pixar
//
// Licensed under the terms set forth in the LICENSE.txt file available at
// https://openusd.org/license.
//
#ifndef PXR_IMAGING_HGI_GL_TEXTURE_H
#define PXR_IMAGING_HGI_GL_TEXTURE_H
 
#include "pxr/pxr.h"
#include "pxr/imaging/hgiGL/api.h"
#include "pxr/imaging/hgiGL/hgi.h"
#include "pxr/imaging/hgi/texture.h"
 
#include "pxr/base/tf/declarePtrs.h"
#include "pxr/base/tf/weakBase.h"
 
 
PXR_NAMESPACE_OPEN_SCOPE
 
TF_DECLARE_WEAK_PTRS(HgiGLTexture);
class FramebufferCacheItem;
class HgiGLContextArena;
 
class HgiGLTexture final : public HgiTexture, public TfWeakBase
{
public:
    HGIGL_API
    ~HgiGLTexture() override;
 
    HGIGL_API
    size_t GetByteSizeOfResource() const override;
 
    HGIGL_API
    uint64_t GetRawResource() const override;
 
    uint32_t GetTextureId() const {return _textureId;}
 
    HGIGL_API
    uint64_t GetBindlessHandle();
 
    HGIGL_API
    HgiTextureUsage SubmitLayoutChange(HgiTextureUsage newLayout) override;
 
    HGIGL_API
    void AddFramebuffer(
        std::weak_ptr<FramebufferCacheItem> cacheItem,
        HgiGLContextArena* arena);
 
protected:
    friend class HgiGL;
 
    HGIGL_API
    HgiGLTexture(HgiTextureDesc const & desc);
 
    HGIGL_API
    HgiGLTexture(HgiTextureViewDesc const & desc);
 
private:
    HgiGLTexture() = delete;
    HgiGLTexture & operator=(const HgiGLTexture&) = delete;
    HgiGLTexture(const HgiGLTexture&) = delete;
 
    uint32_t _textureId;
    uint64_t _bindlessHandle;
    std::vector<
        std::pair<std::weak_ptr<FramebufferCacheItem>, HgiGLContextArena*>>
            _framebuffers;
};
 
 
PXR_NAMESPACE_CLOSE_SCOPE
 
#endif