Sampler.h - mozsearch

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//

// Copyright 2013 The ANGLE Project Authors. All rights reserved.

// Use of this source code is governed by a BSD-style license that can be

// found in the LICENSE file.

//

// Sampler.h : Defines the Sampler class, which represents a GLES 3

// sampler object. Sampler objects store some state needed to sample textures.

#ifndef LIBANGLE_SAMPLER_H_

#define LIBANGLE_SAMPLER_H_

#include "libANGLE/Debug.h"

#include "libANGLE/Observer.h"

#include "libANGLE/RefCountObject.h"

#include "libANGLE/angletypes.h"

namespace rx

class GLImplFactory;

class SamplerImpl;

}  // namespace rx

namespace gl

class Sampler final : public RefCountObject<SamplerID>, public LabeledObject, public angle::Subject

  public:

    Sampler(rx::GLImplFactory *factory, SamplerID id);

    ~Sampler() override;

    void onDestroy(const Context *context) override;

    angle::Result setLabel(const Context *context, const std::string &label) override;

    const std::string &getLabel() const override;

    void setMinFilter(const Context *context, GLenum minFilter);

    GLenum getMinFilter() const;

    void setMagFilter(const Context *context, GLenum magFilter);

    GLenum getMagFilter() const;

    void setWrapS(const Context *context, GLenum wrapS);

    GLenum getWrapS() const;

    void setWrapT(const Context *context, GLenum wrapT);

    GLenum getWrapT() const;

    void setWrapR(const Context *context, GLenum wrapR);

    GLenum getWrapR() const;

    void setMaxAnisotropy(const Context *context, float maxAnisotropy);

    float getMaxAnisotropy() const;

    void setMinLod(const Context *context, GLfloat minLod);

    GLfloat getMinLod() const;

    void setMaxLod(const Context *context, GLfloat maxLod);

    GLfloat getMaxLod() const;

    void setCompareMode(const Context *context, GLenum compareMode);

    GLenum getCompareMode() const;

    void setCompareFunc(const Context *context, GLenum compareFunc);

    GLenum getCompareFunc() const;

    void setSRGBDecode(const Context *context, GLenum sRGBDecode);

    GLenum getSRGBDecode() const;

    void setBorderColor(const Context *context, const ColorGeneric &color);

    const ColorGeneric &getBorderColor() const;

    const SamplerState &getSamplerState() const;

    rx::SamplerImpl *getImplementation() const;

    angle::Result syncState(const Context *context);

    bool isDirty() const { return mDirty; }

  private:

    void signalDirtyState();

    SamplerState mState;

    bool mDirty;

    rx::SamplerImpl *mSampler;

    std::string mLabel;

};

}  // namespace gl

#endif  // LIBANGLE_SAMPLER_H_