Sébastien Blin | 1f91576 | 2020-08-03 13:27:42 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2020 by Savoir-faire Linux |
| 3 | * Author: Andreas Traczyk <andreas.traczyk@savoirfairelinux.com> |
| 4 | * Author: Mingrui Zhang <mingrui.zhang@savoirfairelinux.com> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 3 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 18 | */ |
| 19 | |
| 20 | #include "previewrenderer.h" |
| 21 | |
| 22 | #include "lrcinstance.h" |
| 23 | |
| 24 | PreviewRenderer::PreviewRenderer(QQuickItem *parent) |
| 25 | : QQuickPaintedItem(parent) |
| 26 | { |
| 27 | setAntialiasing(true); |
| 28 | setFillColor(Qt::black); |
| 29 | setRenderTarget(QQuickPaintedItem::FramebufferObject); |
| 30 | setPerformanceHint(QQuickPaintedItem::FastFBOResizing); |
| 31 | |
| 32 | previewFrameUpdatedConnection_ = connect(LRCInstance::renderer(), |
| 33 | &RenderManager::previewFrameUpdated, |
| 34 | [this]() { update(QRect(0, 0, width(), height())); }); |
| 35 | previewRenderingStopped_ = connect(LRCInstance::renderer(), |
| 36 | &RenderManager::previewRenderingStopped, |
| 37 | [this]() { update(QRect(0, 0, width(), height())); }); |
| 38 | } |
| 39 | |
| 40 | PreviewRenderer::~PreviewRenderer() |
| 41 | { |
| 42 | disconnect(previewFrameUpdatedConnection_); |
| 43 | disconnect(previewRenderingStopped_); |
| 44 | } |
| 45 | |
| 46 | void |
| 47 | PreviewRenderer::paint(QPainter *painter) |
| 48 | { |
| 49 | auto previewImage = LRCInstance::renderer()->getPreviewFrame(); |
| 50 | if (previewImage) { |
| 51 | QImage scaledPreview; |
| 52 | auto aspectRatio = static_cast<qreal>(previewImage->width()) |
| 53 | / static_cast<qreal>(previewImage->height()); |
| 54 | auto previewHeight = height(); |
| 55 | auto previewWidth = previewHeight * aspectRatio; |
| 56 | |
| 57 | /* Instead of setting fixed size, we could get an x offset for the preview |
| 58 | * but this would render the horizontal spacers in the parent widget useless. |
| 59 | * e.g. |
| 60 | * auto parent = qobject_cast<QWidget*>(this->parent()); |
| 61 | * auto xPos = (parent->width() - previewWidth) / 2; |
| 62 | * setGeometry(QRect(QPoint(xPos, this->pos().y()), QSize(previewWidth, previewHeight))); |
| 63 | */ |
| 64 | setWidth(previewWidth); |
| 65 | setHeight(previewHeight); |
| 66 | |
| 67 | scaledPreview = previewImage->scaled(size().toSize(), Qt::KeepAspectRatio); |
| 68 | painter->drawImage(QRect(0, 0, scaledPreview.width(), scaledPreview.height()), |
| 69 | scaledPreview); |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | VideoCallPreviewRenderer::VideoCallPreviewRenderer(QQuickItem *parent) |
| 74 | : PreviewRenderer(parent) |
| 75 | {} |
| 76 | |
| 77 | VideoCallPreviewRenderer::~VideoCallPreviewRenderer() {} |
| 78 | |
| 79 | qreal |
| 80 | VideoCallPreviewRenderer::getPreviewImageScalingFactor() |
| 81 | { |
| 82 | auto previewImage = LRCInstance::renderer()->getPreviewFrame(); |
| 83 | if (previewImage) { |
| 84 | return static_cast<qreal>(previewImage->height()) |
| 85 | / static_cast<qreal>(previewImage->width()); |
| 86 | } |
| 87 | return 1.0; |
| 88 | } |
| 89 | |
| 90 | void |
| 91 | VideoCallPreviewRenderer::paint(QPainter *painter) |
| 92 | { |
| 93 | auto previewImage = LRCInstance::renderer()->getPreviewFrame(); |
| 94 | |
| 95 | if (previewImage) { |
| 96 | emit previewImageAvailable(); |
| 97 | |
| 98 | QImage scaledPreview; |
| 99 | scaledPreview = previewImage->scaled(size().toSize(), Qt::KeepAspectRatio); |
| 100 | painter->drawImage(QRect(0, 0, scaledPreview.width(), scaledPreview.height()), |
| 101 | scaledPreview); |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | PhotoboothPreviewRender::PhotoboothPreviewRender(QQuickItem *parent) |
| 106 | : PreviewRenderer(parent) |
| 107 | { |
| 108 | connect(LRCInstance::renderer(), &RenderManager::previewRenderingStopped, [this]() { |
| 109 | emit hideBooth(); |
| 110 | }); |
| 111 | } |
| 112 | |
| 113 | PhotoboothPreviewRender::~PhotoboothPreviewRender() {} |
| 114 | |
| 115 | QImage |
| 116 | PhotoboothPreviewRender::takePhoto() |
| 117 | { |
| 118 | if (auto previewImage = LRCInstance::renderer()->getPreviewFrame()) { |
| 119 | return previewImage->copy(); |
| 120 | } |
| 121 | return QImage(); |
| 122 | } |
| 123 | |
| 124 | QString |
| 125 | PhotoboothPreviewRender::takeCroppedPhotoToBase64(int size) |
| 126 | { |
| 127 | auto image = Utils::cropImage(takePhoto()); |
| 128 | auto avatar = image.scaled(size, size, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation); |
| 129 | |
| 130 | return QString::fromLatin1(Utils::QImageToByteArray(avatar).toBase64().data()); |
| 131 | } |
| 132 | |
| 133 | void |
| 134 | PhotoboothPreviewRender::paint(QPainter *painter) |
| 135 | { |
| 136 | painter->setRenderHint(QPainter::Antialiasing, true); |
| 137 | |
| 138 | auto previewImage = LRCInstance::renderer()->getPreviewFrame(); |
| 139 | if (previewImage) { |
| 140 | QImage scaledPreview; |
| 141 | scaledPreview = Utils::getCirclePhoto(*previewImage, |
| 142 | height() <= width() ? height() : width()); |
| 143 | painter->drawImage(QRect(0, 0, scaledPreview.width(), scaledPreview.height()), |
| 144 | scaledPreview); |
| 145 | } |
| 146 | } |