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diff --git a/libs/hwui/Texture.h b/libs/hwui/Texture.h
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+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HWUI_TEXTURE_H
+#define ANDROID_HWUI_TEXTURE_H
+
+#include "GpuMemoryTracker.h"
+#include "hwui/Bitmap.h"
+#include "utils/Color.h"
+
+#include <memory>
+
+#include <math/mat3.h>
+
+#include <ui/ColorSpace.h>
+
+#include <EGL/egl.h>
+#include <EGL/eglext.h>
+#include <GLES2/gl2.h>
+#include <GLES3/gl3.h>
+#include <SkBitmap.h>
+
+namespace android {
+
+class GraphicBuffer;
+
+namespace uirenderer {
+
+class Caches;
+class UvMapper;
+class Layer;
+
+/**
+ * Represents an OpenGL texture.
+ */
+class Texture : public GpuMemoryTracker {
+public:
+    static SkBitmap uploadToN32(const SkBitmap& bitmap, bool hasLinearBlending,
+                                sk_sp<SkColorSpace> sRGB);
+    static bool hasUnsupportedColorType(const SkImageInfo& info, bool hasLinearBlending);
+    static void colorTypeToGlFormatAndType(const Caches& caches, SkColorType colorType,
+                                           bool needSRGB, GLint* outInternalFormat,
+                                           GLint* outFormat, GLint* outType);
+
+    explicit Texture(Caches& caches) : GpuMemoryTracker(GpuObjectType::Texture), mCaches(caches) {}
+
+    virtual ~Texture() {}
+
+    inline void setWrap(GLenum wrap, bool bindTexture = false, bool force = false) {
+        setWrapST(wrap, wrap, bindTexture, force);
+    }
+
+    virtual void setWrapST(GLenum wrapS, GLenum wrapT, bool bindTexture = false,
+                           bool force = false);
+
+    inline void setFilter(GLenum filter, bool bindTexture = false, bool force = false) {
+        setFilterMinMag(filter, filter, bindTexture, force);
+    }
+
+    virtual void setFilterMinMag(GLenum min, GLenum mag, bool bindTexture = false,
+                                 bool force = false);
+
+    /**
+     * Convenience method to call glDeleteTextures() on this texture's id.
+     */
+    void deleteTexture();
+
+    /**
+     * Sets the width, height, and format of the texture along with allocating
+     * the texture ID. Does nothing if the width, height, and format are already
+     * the requested values.
+     *
+     * The image data is undefined after calling this.
+     */
+    void resize(uint32_t width, uint32_t height, GLint internalFormat, GLint format) {
+        upload(internalFormat, width, height, format,
+               internalFormat == GL_RGBA16F ? GL_HALF_FLOAT : GL_UNSIGNED_BYTE, nullptr);
+    }
+
+    /**
+     * Updates this Texture with the contents of the provided Bitmap,
+     * also setting the appropriate width, height, and format. It is not necessary
+     * to call resize() prior to this.
+     *
+     * Note this does not set the generation from the Bitmap.
+     */
+    void upload(Bitmap& source);
+
+    /**
+     * Basically glTexImage2D/glTexSubImage2D.
+     */
+    void upload(GLint internalFormat, uint32_t width, uint32_t height, GLenum format, GLenum type,
+                const void* pixels);
+
+    /**
+     * Wraps an existing texture.
+     */
+    void wrap(GLuint id, uint32_t width, uint32_t height, GLint internalFormat, GLint format,
+              GLenum target);
+
+    GLuint id() const { return mId; }
+
+    uint32_t width() const { return mWidth; }
+
+    uint32_t height() const { return mHeight; }
+
+    GLint format() const { return mFormat; }
+
+    GLint internalFormat() const { return mInternalFormat; }
+
+    GLenum target() const { return mTarget; }
+
+    /**
+     * Returns nullptr if this texture does not require color space conversion
+     * to sRGB, or a valid pointer to a ColorSpaceConnector if a conversion
+     * is required.
+     */
+    constexpr const ColorSpaceConnector* getColorSpaceConnector() const { return mConnector.get(); }
+
+    constexpr bool hasColorSpaceConversion() const { return mConnector.get() != nullptr; }
+
+    TransferFunctionType getTransferFunctionType() const;
+
+    /**
+     * Returns true if this texture uses a linear encoding format.
+     */
+    constexpr bool isLinear() const { return mIsLinear; }
+
+    /**
+     * Generation of the backing bitmap,
+     */
+    uint32_t generation = 0;
+    /**
+     * Indicates whether the texture requires blending.
+     */
+    bool blend = false;
+    /**
+     * Indicates whether this texture should be cleaned up after use.
+     */
+    bool cleanup = false;
+    /**
+     * Optional, size of the original bitmap.
+     */
+    uint32_t bitmapSize = 0;
+    /**
+     * Indicates whether this texture will use trilinear filtering.
+     */
+    bool mipMap = false;
+
+    /**
+     * Optional, pointer to a texture coordinates mapper.
+     */
+    const UvMapper* uvMapper = nullptr;
+
+    /**
+     * Whether or not the Texture is marked in use and thus not evictable for
+     * the current frame. This is reset at the start of a new frame.
+     */
+    void* isInUse = nullptr;
+
+private:
+    // TODO: Temporarily grant private access to GlLayer, remove once
+    // GlLayer can be de-tangled from being a dual-purpose render target
+    // and external texture wrapper
+    friend class GlLayer;
+
+    // Returns true if the texture layout (size, format, etc.) changed, false if it was the same
+    bool updateLayout(uint32_t width, uint32_t height, GLint internalFormat, GLint format,
+                      GLenum target);
+    void uploadHardwareBitmapToTexture(GraphicBuffer* buffer);
+    void resetCachedParams();
+
+    GLuint mId = 0;
+    uint32_t mWidth = 0;
+    uint32_t mHeight = 0;
+    GLint mFormat = 0;
+    GLint mInternalFormat = 0;
+    GLenum mTarget = GL_NONE;
+    EGLImageKHR mEglImageHandle = EGL_NO_IMAGE_KHR;
+
+    /* See GLES spec section 3.8.14
+     * "In the initial state, the value assigned to TEXTURE_MIN_FILTER is
+     * NEAREST_MIPMAP_LINEAR and the value for TEXTURE_MAG_FILTER is LINEAR.
+     * s, t, and r wrap modes are all set to REPEAT."
+     */
+    GLenum mWrapS = GL_REPEAT;
+    GLenum mWrapT = GL_REPEAT;
+    GLenum mMinFilter = GL_NEAREST_MIPMAP_LINEAR;
+    GLenum mMagFilter = GL_LINEAR;
+
+    // Indicates whether the content of the texture is in linear space
+    bool mIsLinear = false;
+
+    Caches& mCaches;
+
+    std::unique_ptr<ColorSpaceConnector> mConnector;
+};  // struct Texture
+
+class AutoTexture {
+public:
+    explicit AutoTexture(Texture* texture) : texture(texture) {}
+    ~AutoTexture() {
+        if (texture && texture->cleanup) {
+            texture->deleteTexture();
+            delete texture;
+        }
+    }
+
+    Texture* const texture;
+};  // class AutoTexture
+
+};  // namespace uirenderer
+};  // namespace android
+
+#endif  // ANDROID_HWUI_TEXTURE_H