chromium/third_party/angle/src/libANGLE/Texture.h

//
// Copyright 2002 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.
//

// Texture.h: Defines the gl::Texture class [OpenGL ES 2.0.24] section 3.7 page 63.

#ifndef LIBANGLE_TEXTURE_H_
#define LIBANGLE_TEXTURE_H_

#include <map>
#include <vector>

#include "angle_gl.h"
#include "common/Optional.h"
#include "common/debug.h"
#include "common/utilities.h"
#include "libANGLE/Caps.h"
#include "libANGLE/Constants.h"
#include "libANGLE/Debug.h"
#include "libANGLE/Error.h"
#include "libANGLE/FramebufferAttachment.h"
#include "libANGLE/Image.h"
#include "libANGLE/Observer.h"
#include "libANGLE/Stream.h"
#include "libANGLE/angletypes.h"
#include "libANGLE/formatutils.h"

namespace egl
{
class Surface;
class Stream;
}  // namespace egl

namespace rx
{
class GLImplFactory;
class TextureImpl;
class TextureGL;
}  // namespace rx

namespace gl
{
class Framebuffer;
class MemoryObject;
class Sampler;
class State;
class Texture;

constexpr GLuint kInitialMaxLevel = …;

bool IsMipmapFiltered(GLenum minFilterMode);

// Convert a given filter mode to nearest filtering.
GLenum ConvertToNearestFilterMode(GLenum filterMode);

// Convert a given filter mode to nearest mip filtering.
GLenum ConvertToNearestMipFilterMode(GLenum filterMode);

struct ImageDesc final
{ … };

struct SwizzleState final
{ … };

// State from Table 6.9 (state per texture object) in the OpenGL ES 3.0.2 spec.
class TextureState final : private angle::NonCopyable
{ … };

bool operator==(const TextureState &a, const TextureState &b);
bool operator!=(const TextureState &a, const TextureState &b);

class TextureBufferContentsObservers final : angle::NonCopyable
{ … };

class Texture final : public RefCountObject<TextureID>,
                      public egl::ImageSibling,
                      public LabeledObject
{ … };

inline bool operator==(const TextureState &a, const TextureState &b)
{ … }

inline bool operator!=(const TextureState &a, const TextureState &b)
{ … }
}  // namespace gl

#endif  // LIBANGLE_TEXTURE_H_