Texture.h - mozsearch

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef GPU_Texture_H_

#define GPU_Texture_H_

#include <cstdint>

#include "mozilla/WeakPtr.h"

#include "nsWrapperCache.h"

#include "ObjectModel.h"

#include "mozilla/webgpu/WebGPUTypes.h"

#include "mozilla/webgpu/ffi/wgpu.h"

namespace mozilla {

namespace dom {

struct GPUTextureDescriptor;

struct GPUTextureViewDescriptor;

enum class GPUTextureDimension : uint8_t;

enum class GPUTextureFormat : uint8_t;

enum class GPUTextureUsageFlags : uint32_t;

}  // namespace dom

namespace webgpu {

class CanvasContext;

class Device;

class TextureView;

class Texture final : public ObjectBase, public ChildOf<Device> {

 public:

  GPU_DECL_CYCLE_COLLECTION(Texture)

  GPU_DECL_JS_WRAP(Texture)

  Texture(Device* const aParent, RawId aId,

          const dom::GPUTextureDescriptor& aDesc);

  Device* GetDevice() { return mParent; }

  const RawId mId;

  const dom::GPUTextureFormat mFormat;

  const Maybe<uint8_t> mBytesPerBlock;

  WeakPtr<CanvasContext> mTargetContext;

 private:

  virtual ~Texture();

  void Cleanup();

  const ffi::WGPUExtent3d mSize;

  const uint32_t mMipLevelCount;

  const uint32_t mSampleCount;

  const dom::GPUTextureDimension mDimension;

  const uint32_t mUsage;

 public:

  already_AddRefed<TextureView> CreateView(

      const dom::GPUTextureViewDescriptor& aDesc);

  void Destroy();

  uint32_t Width() const { return mSize.width; }

  uint32_t Height() const { return mSize.height; }

  uint32_t DepthOrArrayLayers() const { return mSize.depth_or_array_layers; }

  uint32_t MipLevelCount() const { return mMipLevelCount; }

  uint32_t SampleCount() const { return mSampleCount; }

  dom::GPUTextureDimension Dimension() const { return mDimension; }

  dom::GPUTextureFormat Format() const { return mFormat; }

  uint32_t Usage() const { return mUsage; }

};

}  // namespace webgpu

}  // namespace mozilla

#endif  // GPU_Texture_H_