/* -*- 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"
#include "mozilla/webgpu/WebGPUTypes.h"
namespace mozilla {
namespace ipc {
class Shmem;
}
namespace webgpu {
class ExternalTextureDMABuf;
class ExternalTextureMacIOSurface;
class WebGPUParent;
// A texture that can be used by the WebGPU implementation but is created and
// owned by Gecko
class ExternalTexture {
public:
static UniquePtr<ExternalTexture> Create(
WebGPUParent* aParent,
const ffi::WGPUDeviceId aDeviceId,
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) {}
virtual ExternalTextureDMABuf* AsExternalTextureDMABuf() {
return nullptr; }
virtual ExternalTextureMacIOSurface* AsExternalTextureMacIOSurface() {
return nullptr;
}
gfx::IntSize GetSize() {
return gfx::IntSize(mWidth, mHeight); }
void SetSubmissionIndex(uint64_t aSubmissionIndex);
uint64_t GetSubmissionIndex()
const {
return mSubmissionIndex; }
void SetOwnerId(
const layers::RemoteTextureOwnerId aOwnerId) {
mOwnerId = aOwnerId;
}
layers::RemoteTextureOwnerId GetOwnerId()
const {
MOZ_ASSERT(mOwnerId.IsValid());
return mOwnerId;
}
const uint32_t mWidth;
const uint32_t mHeight;
const struct ffi::WGPUTextureFormat mFormat;
const ffi::WGPUTextureUsages mUsage;
protected:
uint64_t mSubmissionIndex = 0;
layers::RemoteTextureOwnerId mOwnerId;
};
// Dummy class
class ExternalTextureReadBackPresent final :
public ExternalTexture {
public:
static UniquePtr<ExternalTextureReadBackPresent> Create(
const uint32_t aWidth,
const uint32_t aHeight,
const struct ffi::WGPUTextureFormat aFormat,
const ffi::WGPUTextureUsages aUsage);
ExternalTextureReadBackPresent(
const uint32_t aWidth,
const uint32_t aHeight,
const struct ffi::WGPUTextureFormat aFormat,
const ffi::WGPUTextureUsages aUsage);
virtual ~ExternalTextureReadBackPresent();
Maybe<layers::SurfaceDescriptor> ToSurfaceDescriptor(
Maybe<gfx::FenceInfo>& aFenceInfo) override {
return Nothing();
}
};
}
// namespace webgpu
}
// namespace mozilla
#endif // GPU_ExternalTexture_H_