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// 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.
// TextureStorage.h: Defines the abstract rx::TextureStorage class.
#include "common/debug.h"
#include "libANGLE/angletypes.h"
#include <GLES2/gl2.h>
#include <stdint.h>
namespace gl
class Context;
class ImageIndex;
struct Box;
struct PixelUnpackState;
} // namespace gl
namespace angle
class Subject;
} // namespace angle
namespace rx
class SwapChainD3D;
class RenderTargetD3D;
class ImageD3D;
// Dirty bit messages from TextureStorage
constexpr size_t kTextureStorageObserverMessageIndex = 0;
class TextureStorage : public angle::Subject
TextureStorage() {}
~TextureStorage() override {}
virtual angle::Result onDestroy(const gl::Context *context);
virtual int getTopLevel() const = 0;
virtual bool isRenderTarget() const = 0;
virtual bool isManaged() const = 0;
virtual bool supportsNativeMipmapFunction() const = 0;
virtual int getLevelCount() const = 0;
virtual angle::Result getRenderTarget(const gl::Context *context,
const gl::ImageIndex &index,
GLsizei samples,
RenderTargetD3D **outRT) = 0;
virtual angle::Result generateMipmap(const gl::Context *context,
const gl::ImageIndex &sourceIndex,
const gl::ImageIndex &destIndex) = 0;
virtual angle::Result copyToStorage(const gl::Context *context,
TextureStorage *destStorage) = 0;
virtual angle::Result setData(const gl::Context *context,
const gl::ImageIndex &index,
ImageD3D *image,
const gl::Box *destBox,
GLenum type,
const gl::PixelUnpackState &unpack,
const uint8_t *pixelData) = 0;
// This is a no-op for most implementations of TextureStorage. Some (e.g. TextureStorage11_2D)
// might override it.
virtual angle::Result useLevelZeroWorkaroundTexture(const gl::Context *context,
bool useLevelZeroTexture);
virtual void invalidateTextures() {}
// RenderToTexture methods
virtual angle::Result releaseMultisampledTexStorageForLevel(size_t level);
virtual angle::Result resolveTexture(const gl::Context *context);
virtual GLsizei getRenderToTextureSamples() const;
const angle::Subject *mSubject;
inline angle::Result TextureStorage::onDestroy(const gl::Context *context)
return angle::Result::Continue;
inline angle::Result TextureStorage::useLevelZeroWorkaroundTexture(const gl::Context *context,
bool useLevelZeroTexture)
return angle::Result::Continue;
inline angle::Result TextureStorage::releaseMultisampledTexStorageForLevel(size_t level)
return angle::Result::Continue;
inline angle::Result TextureStorage::resolveTexture(const gl::Context *context)
return angle::Result::Continue;
inline GLsizei TextureStorage::getRenderToTextureSamples() const
return 0;
using TexStoragePointer = angle::UniqueObjectPointer<TextureStorage, gl::Context>;
} // namespace rx