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/*
* Copyright (C) 2022-2023 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. AND ITS CONTRIBUTORS ``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 ITS 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.
*/
#include "config.h"
#include "GPUPresentationContext.h"
#include "GPUCanvasConfiguration.h"
#include "GPUDevice.h"
#include "GPUTexture.h"
#include "GPUTextureDescriptor.h"
namespace WebCore {
bool GPUPresentationContext::configure(const GPUCanvasConfiguration& canvasConfiguration, GPUIntegerCoordinate width, GPUIntegerCoordinate height, bool reportValidationErrors)
{
m_device = canvasConfiguration.device.get();
m_currentTexture = nullptr;
m_textureDescriptor = GPUTextureDescriptor {
{ "canvas backing"_s },
GPUExtent3DDict { width, height, 1 },
1,
1,
GPUTextureDimension::_2d,
canvasConfiguration.format,
canvasConfiguration.usage,
canvasConfiguration.viewFormats
};
if (!m_backing->configure(canvasConfiguration.convertToBacking(reportValidationErrors))) {
ASSERT_NOT_REACHED();
return false;
}
return true;
}
void GPUPresentationContext::unconfigure()
{
m_currentTexture = nullptr;
m_backing->unconfigure();
}
RefPtr<GPUTexture> GPUPresentationContext::getCurrentTexture(uint32_t index)
{
if ((!m_currentTexture || m_currentTexture->isDestroyed()) && m_device.get()) {
if (auto currentTexture = m_backing->getCurrentTexture(index))
m_currentTexture = GPUTexture::create(*currentTexture, m_textureDescriptor, *m_device.get()).ptr();
}
return m_currentTexture;
}
void GPUPresentationContext::present(uint32_t frameIndex, bool presentBacking)
{
m_currentTexture = nullptr;
if (presentBacking)
m_backing->present(frameIndex, presentBacking);
}
} // namespace WebCore
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