125 lines
3.7 KiB
C++
125 lines
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef ExternalTexture_H_
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#define ExternalTexture_H_
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#include "nsIGlobalObject.h"
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#include "ObjectModel.h"
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#include "mozilla/gfx/Point.h"
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#include "mozilla/layers/LayersSurfaces.h"
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#include "mozilla/webgpu/ffi/wgpu.h"
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#include "mozilla/webgpu/WebGPUTypes.h"
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namespace mozilla {
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namespace ipc {
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class Shmem;
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}
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namespace webgpu {
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// NOTE: Incomplete, and needs to be reconciled with the existing
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// `ExternalTexture`, which is used by and for internals that handle compositor
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// textures.
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//
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// Follow-up to complete implementation is at
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// <https://bugzilla.mozilla.org/show_bug.cgi?id=1827116>.
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class ExtTex : public ObjectBase {
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public:
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GPU_DECL_CYCLE_COLLECTION(ExtTex)
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GPU_DECL_JS_WRAP(ExtTex)
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explicit ExtTex(nsIGlobalObject* const aGlobal) : mGlobal(aGlobal) {}
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nsIGlobalObject* GetParentObject() const { return mGlobal; }
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private:
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nsCOMPtr<nsIGlobalObject> mGlobal;
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~ExtTex() = default;
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void Cleanup() {}
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};
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class ExternalTextureD3D11;
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class ExternalTextureDMABuf;
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class ExternalTextureMacIOSurface;
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class WebGPUParent;
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// A texture that can be used by the WebGPU implementation but is created and
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// owned by Gecko
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class ExternalTexture {
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public:
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static UniquePtr<ExternalTexture> Create(
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WebGPUParent* aParent, const ffi::WGPUDeviceId aDeviceId,
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const uint32_t aWidth, const uint32_t aHeight,
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const struct ffi::WGPUTextureFormat aFormat,
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const ffi::WGPUTextureUsages aUsage);
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ExternalTexture(const uint32_t aWidth, const uint32_t aHeight,
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const struct ffi::WGPUTextureFormat aFormat,
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const ffi::WGPUTextureUsages aUsage);
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virtual ~ExternalTexture();
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virtual Maybe<layers::SurfaceDescriptor> ToSurfaceDescriptor() = 0;
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virtual void GetSnapshot(const ipc::Shmem& aDestShmem,
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const gfx::IntSize& aSize) {}
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virtual ExternalTextureDMABuf* AsExternalTextureDMABuf() { return nullptr; }
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virtual ExternalTextureMacIOSurface* AsExternalTextureMacIOSurface() {
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return nullptr;
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}
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virtual ExternalTextureD3D11* AsExternalTextureD3D11() { return nullptr; }
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gfx::IntSize GetSize() { return gfx::IntSize(mWidth, mHeight); }
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void SetSubmissionIndex(uint64_t aSubmissionIndex);
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uint64_t GetSubmissionIndex() const { return mSubmissionIndex; }
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void SetOwnerId(const layers::RemoteTextureOwnerId aOwnerId) {
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mOwnerId = aOwnerId;
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}
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layers::RemoteTextureOwnerId GetOwnerId() const {
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MOZ_ASSERT(mOwnerId.IsValid());
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return mOwnerId;
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}
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virtual void onBeforeQueueSubmit(RawId aQueueId) {}
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const uint32_t mWidth;
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const uint32_t mHeight;
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const struct ffi::WGPUTextureFormat mFormat;
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const ffi::WGPUTextureUsages mUsage;
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protected:
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uint64_t mSubmissionIndex = 0;
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layers::RemoteTextureOwnerId mOwnerId;
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};
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// Dummy class
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class ExternalTextureReadBackPresent final : public ExternalTexture {
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public:
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static UniquePtr<ExternalTextureReadBackPresent> Create(
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const uint32_t aWidth, const uint32_t aHeight,
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const struct ffi::WGPUTextureFormat aFormat,
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const ffi::WGPUTextureUsages aUsage);
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ExternalTextureReadBackPresent(const uint32_t aWidth, const uint32_t aHeight,
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const struct ffi::WGPUTextureFormat aFormat,
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const ffi::WGPUTextureUsages aUsage);
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virtual ~ExternalTextureReadBackPresent();
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Maybe<layers::SurfaceDescriptor> ToSurfaceDescriptor() override {
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return Nothing();
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}
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};
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} // namespace webgpu
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} // namespace mozilla
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#endif // GPU_ExternalTexture_H_
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