1// Copyright (C) 2024 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
3
4#include "qvideoframetexturepool_p.h"
5#include "qvideotexturehelper_p.h"
6
7#include <rhi/qrhi.h>
8
9QT_BEGIN_NAMESPACE
10
11void QVideoFrameTexturePool::setCurrentFrame(QVideoFrame frame) {
12 m_texturesDirty = true;
13 m_currentFrame = std::move(frame);
14}
15
16QVideoFrameTextures* QVideoFrameTexturePool::updateTextures(QRhi &rhi, QRhiResourceUpdateBatch &rub) {
17 const int currentSlot = rhi.currentFrameSlot();
18 Q_ASSERT(size_t(currentSlot) < MaxSlotsCount);
19
20 m_texturesDirty = false;
21 QVideoFrameTexturesUPtr &textures = m_textureSlots[currentSlot];
22 Q_ASSERT(!m_oldTextures);
23 m_oldTextures = std::move(textures);
24 textures = QVideoTextureHelper::createTextures(frame: m_currentFrame, rhi, rub, oldTextures&: m_oldTextures);
25
26 m_currentSlot = textures ? currentSlot : std::optional<int>{};
27
28 return textures.get();
29}
30
31void QVideoFrameTexturePool::onFrameEndInvoked()
32{
33 m_oldTextures.reset();
34 if (m_currentSlot && m_textureSlots[*m_currentSlot])
35 m_textureSlots[*m_currentSlot]->onFrameEndInvoked();
36}
37
38void QVideoFrameTexturePool::clearTextures()
39{
40 std::fill(first: std::begin(cont&: m_textureSlots), last: std::end(cont&: m_textureSlots), value: nullptr);
41 m_currentSlot.reset();
42 m_texturesDirty = m_currentFrame.isValid();
43}
44
45QT_END_NAMESPACE
46

source code of qtmultimedia/src/multimedia/video/qvideoframetexturepool.cpp