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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 ExternalTexture_H_
#define ExternalTexture_H_
#include "mozilla/gfx/Point.h"
#include "mozilla/layers/LayersSurfaces.h"
#include "mozilla/webgpu/ffi/wgpu.h"
namespace mozilla {
namespace ipc {
class Shmem;
}
namespace webgpu {
// A texture that can be used by the WebGPU implementation but is created and
// owned by Gecko
class ExternalTexture {
public:
static UniquePtr<ExternalTexture> Create(
const uint32_t aWidth, const uint32_t aHeight,
const struct ffi::WGPUTextureFormat aFormat,
const ffi::WGPUTextureUsages aUsage);
ExternalTexture(const uint32_t aWidth, const uint32_t aHeight,
const struct ffi::WGPUTextureFormat aFormat,
const ffi::WGPUTextureUsages aUsage);
virtual ~ExternalTexture();
virtual void* GetExternalTextureHandle() { return nullptr; }
virtual Maybe<layers::SurfaceDescriptor> ToSurfaceDescriptor(
Maybe<gfx::FenceInfo>& aFenceInfo) = 0;
virtual void GetSnapshot(const ipc::Shmem& aDestShmem,
const gfx::IntSize& aSize) {}
gfx::IntSize GetSize() { return gfx::IntSize(mWidth, mHeight); }
void SetSubmissionIndex(uint64_t aSubmissionIndex);
uint64_t GetSubmissionIndex() const { return mSubmissionIndex; }
const uint32_t mWidth;
const uint32_t mHeight;
const struct ffi::WGPUTextureFormat mFormat;
const ffi::WGPUTextureUsages mUsage;
protected:
uint64_t mSubmissionIndex = 0;
};
} // namespace webgpu
} // namespace mozilla
#endif // GPU_ExternalTexture_H_
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