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/*
* Copyright (c) 2021-2023 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#import <wtf/FastMalloc.h>
#import <wtf/Ref.h>
#import <wtf/RefCounted.h>
#import <wtf/RetainPtr.h>
#import <wtf/TZoneMalloc.h>
#import <wtf/TypeCasts.h>
struct WGPUSurfaceImpl {
};
struct WGPUSwapChainImpl {
};
namespace WebGPU {
class Adapter;
class Device;
class Instance;
class Texture;
class TextureView;
class PresentationContext : public WGPUSurfaceImpl, public WGPUSwapChainImpl, public RefCounted<PresentationContext> {
WTF_MAKE_TZONE_ALLOCATED(PresentationContext);
public:
static Ref<PresentationContext> create(const WGPUSurfaceDescriptor&, const Instance&);
static Ref<PresentationContext> createInvalid()
{
return adoptRef(*new PresentationContext());
}
virtual ~PresentationContext();
WGPUTextureFormat getPreferredFormat(const Adapter&);
virtual void configure(Device&, const WGPUSwapChainDescriptor&);
virtual void unconfigure();
virtual void present(uint32_t);
virtual Texture* getCurrentTexture(uint32_t);
virtual TextureView* getCurrentTextureView(); // FIXME: This should return a TextureView&.
virtual bool isPresentationContextIOSurface() const { return false; }
virtual bool isPresentationContextCoreAnimation() const { return false; }
virtual RetainPtr<CGImageRef> getTextureAsNativeImage(uint32_t, bool&) { return nullptr; }
virtual bool isValid() { return false; }
protected:
explicit PresentationContext();
};
} // namespace WebGPU
#define SPECIALIZE_TYPE_TRAITS_WEBGPU_PRESENTATION_CONTEXT(ToValueTypeName, predicate) \
SPECIALIZE_TYPE_TRAITS_BEGIN(WebGPU::ToValueTypeName) \
static bool isType(const WebGPU::PresentationContext& presentationContext) { return presentationContext.predicate; } \
SPECIALIZE_TYPE_TRAITS_END()
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