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https://gitea.wildfiregames.com/0ad/0ad
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cf4a4d8fd5
It allows us more flexibility on how we control swapchain. That includes toggling V-Sync in real time.
78 lines
2.3 KiB
C++
78 lines
2.3 KiB
C++
/* Copyright (C) 2026 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef INCLUDED_RENDERER_BACKEND_ISWAPCHAIN
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#define INCLUDED_RENDERER_BACKEND_ISWAPCHAIN
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#include "renderer/backend/IDeviceObject.h"
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#include "renderer/backend/IFramebuffer.h"
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#include <cstdint>
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namespace Renderer
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{
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namespace Backend
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{
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class ISwapChain : public IDeviceObject<ISwapChain>
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{
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public:
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/**
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* @return True if we still can use the swapchain to present. A swapchain
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* can become invalid on window resize or some other system event.
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*/
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virtual bool IsValid() const = 0;
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/**
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* Acquires a backbuffer for rendering a frame.
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*
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* @return True if it was successfully acquired and we can render to it.
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*/
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virtual bool AcquireNextBackbuffer() = 0;
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/**
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* Returns a framebuffer for the current backbuffer with the required
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* attachment operations. It should not be called if the last
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* AcquireNextBackbuffer call returned false.
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*
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* It's guaranteed that for the same acquired backbuffer this function returns
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* a framebuffer with the same attachments and properties except load and
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* store operations.
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*
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* @return The last successfully acquired framebuffer that wasn't
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* presented.
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*/
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virtual IFramebuffer* GetCurrentBackbuffer(
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const AttachmentLoadOp colorAttachmentLoadOp,
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const AttachmentStoreOp colorAttachmentStoreOp,
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const AttachmentLoadOp depthStencilAttachmentLoadOp,
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const AttachmentStoreOp depthStencilAttachmentStoreOp) = 0;
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/**
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* Presents the backbuffer to the swapchain queue to be flipped on a
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* screen. Should be called only if the last AcquireNextBackbuffer call
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* returned true.
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*/
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virtual void Present() = 0;
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};
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} // namespace Backend
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} // namespace Renderer
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#endif // INCLUDED_RENDERER_BACKEND_ISWAPCHAIN
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