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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_XR_XR_WEBGL_PROJECTION_LAYER_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_XR_XR_WEBGL_PROJECTION_LAYER_H_
#include "third_party/blink/renderer/modules/xr/xr_projection_layer.h"
#include "third_party/blink/renderer/modules/xr/xr_webgl_layer_client.h"
namespace blink {
class WebGLRenderingContextBase;
class XRWebGLBinding;
class XRWebGLSwapChain;
class XRWebGLProjectionLayer final : public XRProjectionLayer,
public XRWebGLLayerClient {
public:
XRWebGLProjectionLayer(XRWebGLBinding*,
XRWebGLSwapChain* color_swap_chain,
XRWebGLSwapChain* depth_stencil_swap_chain);
~XRWebGLProjectionLayer() override = default;
// XRWebGLLayerClient implementation
const XRLayer* layer() const override { return this; }
WebGLRenderingContextBase* context() const override {
return webgl_context_.Get();
}
scoped_refptr<StaticBitmapImage> TransferToStaticBitmapImage() override;
uint16_t textureWidth() const override;
uint16_t textureHeight() const override;
uint16_t textureArrayLength() const override;
void OnFrameStart() override;
void OnFrameEnd() override;
void OnResize() override;
XRWebGLSwapChain* color_swap_chain() const { return color_swap_chain_.Get(); }
XRWebGLSwapChain* depth_stencil_swap_chain() const {
return depth_stencil_swap_chain_.Get();
}
void MarkViewportUpdated() { viewport_updated_ = true; }
void Trace(Visitor*) const override;
private:
Member<WebGLRenderingContextBase> webgl_context_;
Member<XRWebGLSwapChain> color_swap_chain_;
Member<XRWebGLSwapChain> depth_stencil_swap_chain_;
bool viewport_updated_ = true;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_XR_XR_WEBGL_PROJECTION_LAYER_H_
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