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

// Copyright 2017 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_webgl_layer.h"

#include <algorithm>
#include <utility>

#include "base/numerics/safe_conversions.h"
#include "base/trace_event/trace_event.h"
#include "third_party/blink/renderer/core/frame/web_feature.h"
#include "third_party/blink/renderer/core/imagebitmap/image_bitmap.h"
#include "third_party/blink/renderer/core/inspector/console_message.h"
#include "third_party/blink/renderer/modules/webgl/webgl_framebuffer.h"
#include "third_party/blink/renderer/modules/webgl/webgl_rendering_context_base.h"
#include "third_party/blink/renderer/modules/xr/xr_frame_provider.h"
#include "third_party/blink/renderer/modules/xr/xr_session.h"
#include "third_party/blink/renderer/modules/xr/xr_system.h"
#include "third_party/blink/renderer/modules/xr/xr_utils.h"
#include "third_party/blink/renderer/modules/xr/xr_view.h"
#include "third_party/blink/renderer/modules/xr/xr_viewport.h"
#include "third_party/blink/renderer/platform/bindings/exception_state.h"
#include "ui/gfx/geometry/point_f.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 kFramebufferMinScale = …;
const uint32_t kCleanFrameWarningLimit = …;

const char kCleanFrameWarning[] = …;

}  // namespace

XRWebGLLayer* XRWebGLLayer::Create(XRSession* session,
                                   const V8XRWebGLRenderingContext* context,
                                   const XRWebGLLayerInit* initializer,
                                   ExceptionState& exception_state) { … }

XRWebGLLayer::XRWebGLLayer(XRSession* session,
                           WebGLRenderingContextBase* webgl_context,
                           scoped_refptr<XRWebGLDrawingBuffer> drawing_buffer,
                           WebGLFramebuffer* framebuffer,
                           double framebuffer_scale,
                           bool ignore_depth_values)
    : … { … }

XRWebGLLayer::~XRWebGLLayer() { … }

uint32_t XRWebGLLayer::framebufferWidth() const { … }

uint32_t XRWebGLLayer::framebufferHeight() const { … }

bool XRWebGLLayer::antialias() const { … }

XRViewport* XRWebGLLayer::getViewport(XRView* view) { … }

XRViewport* XRWebGLLayer::GetViewportForEye(device::mojom::blink::XREye eye) { … }

double XRWebGLLayer::getNativeFramebufferScaleFactor(XRSession* session) { … }

void XRWebGLLayer::UpdateViewports() { … }

HTMLCanvasElement* XRWebGLLayer::output_canvas() const { … }

WebGLTexture* XRWebGLLayer::GetCameraTexture() { … }

void XRWebGLLayer::OnFrameStart(
    const std::optional<gpu::MailboxHolder>& buffer_mailbox_holder,
    const std::optional<gpu::MailboxHolder>& camera_image_mailbox_holder) { … }

uint32_t XRWebGLLayer::GetBufferTextureId(
    const std::optional<gpu::MailboxHolder>& buffer_mailbox_holder) { … }

void XRWebGLLayer::BindCameraBufferTexture(
    const std::optional<gpu::MailboxHolder>& buffer_mailbox_holder) { … }

void XRWebGLLayer::OnFrameEnd() { … }

void XRWebGLLayer::OnResize() { … }

scoped_refptr<StaticBitmapImage> XRWebGLLayer::TransferToStaticBitmapImage() { … }

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

}  // namespace blink