src/dawn/native/opengl/SamplerGL.h

// Copyright 2017 The Dawn & Tint Authors
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#ifndef SRC_DAWN_NATIVE_OPENGL_SAMPLERGL_H_
#define SRC_DAWN_NATIVE_OPENGL_SAMPLERGL_H_

#include "dawn/native/Sampler.h"

#include "dawn/native/opengl/opengl_platform.h"

namespace dawn::native::opengl {

class Device;

class Sampler final : public SamplerBase {
  public:
    Sampler(Device* device, const SamplerDescriptor* descriptor);

    GLuint GetFilteringHandle() const;
    GLuint GetNonFilteringHandle() const;

  private:
    ~Sampler() override;
    void DestroyImpl() override;

    void SetupGLSampler(GLuint sampler, const SamplerDescriptor* descriptor, bool forceNearest);

    GLuint mFilteringHandle;

    // This is a sampler equivalent to mFilteringHandle except that it uses NEAREST filtering
    // for everything, which is important to preserve texture completeness for u/int textures.
    GLuint mNonFilteringHandle;
};

}  // namespace dawn::native::opengl

#endif  // SRC_DAWN_NATIVE_OPENGL_SAMPLERGL_H_