chromium/third_party/blink/renderer/modules/xr/xr_gpu_binding.cc

// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "third_party/blink/renderer/modules/xr/xr_gpu_binding.h"

#include "third_party/blink/renderer/bindings/modules/v8/v8_xr_gpu_projection_layer_init.h"
#include "third_party/blink/renderer/modules/webgpu/dawn_conversions.h"
#include "third_party/blink/renderer/modules/webgpu/dawn_enum_conversions.h"
#include "third_party/blink/renderer/modules/webgpu/dawn_object.h"
#include "third_party/blink/renderer/modules/webgpu/gpu.h"
#include "third_party/blink/renderer/modules/webgpu/gpu_adapter.h"
#include "third_party/blink/renderer/modules/webgpu/gpu_device.h"
#include "third_party/blink/renderer/modules/webgpu/gpu_supported_limits.h"
#include "third_party/blink/renderer/modules/webgpu/gpu_texture.h"
#include "third_party/blink/renderer/modules/xr/xr_gpu_projection_layer.h"
#include "third_party/blink/renderer/modules/xr/xr_gpu_sub_image.h"
#include "third_party/blink/renderer/modules/xr/xr_session.h"
#include "third_party/blink/renderer/modules/xr/xr_view.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/geometry/size_conversions.h"
#include "ui/gfx/geometry/size_f.h"

namespace blink {

namespace {

const double kMinScaleFactor = …;

// A texture swap chain that is not communicated back to the compositor, used
// for things like depth/stencil attachments that don't assist reprojection.
class XRGPUStaticTextureLayerSwapChain : public XRGPULayerTextureSwapChain { … };

}  // namespace

void XRGPULayerTextureSwapChain::OnFrameStart() { … }
void XRGPULayerTextureSwapChain::OnFrameEnd() { … }
void XRGPULayerTextureSwapChain::Trace(Visitor* visitor) const { … }

XRGPUBinding* XRGPUBinding::Create(XRSession* session,
                                   GPUDevice* device,
                                   ExceptionState& exception_state) { … }

XRGPUBinding::XRGPUBinding(XRSession* session, GPUDevice* device)
    : … { … }

XRProjectionLayer* XRGPUBinding::createProjectionLayer(
    const XRGPUProjectionLayerInit* init,
    ExceptionState& exception_state) { … }

XRGPUSubImage* XRGPUBinding::getViewSubImage(XRProjectionLayer* layer,
                                             XRView* view,
                                             ExceptionState& exception_state) { … }

String XRGPUBinding::getPreferredColorFormat() { … }

void XRGPUBinding::Trace(Visitor* visitor) const { … }

}  // namespace blink