itsmattkc
ed48d24cbc
Implements an extra widget to display images on a separate monitor. Both viewers have separate display color controls since different monitors may conform to different standards/transforms.
406 lines
10 KiB
C++
406 lines
10 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2019 Olive Team
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This program 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 3 of the License, or
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(at your option) any later version.
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This program 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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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "viewerglwidget.h"
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#include <OpenImageIO/imagebuf.h>
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#include <QFileInfo>
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#include <QMessageBox>
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#include <QMouseEvent>
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#include <QOpenGLContext>
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#include <QOpenGLFunctions>
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#include <QOpenGLTexture>
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#include "common/define.h"
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#include "render/backend/opengl/openglrenderfunctions.h"
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#include "render/backend/opengl/openglshader.h"
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#include "render/pixelformat.h"
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#ifdef Q_OS_LINUX
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bool ViewerGLWidget::nouveau_check_done_ = false;
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#endif
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ViewerGLWidget::ViewerGLWidget(QWidget *parent) :
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QOpenGLWidget(parent),
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color_manager_(nullptr),
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has_image_(false),
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signal_cursor_color_(false)
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{
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setContextMenuPolicy(Qt::CustomContextMenu);
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}
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ViewerGLWidget::~ViewerGLWidget()
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{
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ContextCleanup();
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}
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void ViewerGLWidget::ConnectColorManager(ColorManager *color_manager)
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{
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if (color_manager_ == color_manager) {
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return;
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}
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if (color_manager_ != nullptr) {
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disconnect(color_manager_, &ColorManager::ConfigChanged, this, &ViewerGLWidget::RefreshColorPipeline);
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}
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color_manager_ = color_manager;
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if (color_manager_ != nullptr) {
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connect(color_manager_, &ColorManager::ConfigChanged, this, &ViewerGLWidget::RefreshColorPipeline);
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}
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RefreshColorPipeline();
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}
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void ViewerGLWidget::DisconnectColorManager()
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{
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ConnectColorManager(nullptr);
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}
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void ViewerGLWidget::SetMatrix(const QMatrix4x4 &mat)
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{
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matrix_ = mat;
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update();
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}
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void ViewerGLWidget::SetImage(const QString &fn)
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{
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has_image_ = false;
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if (!fn.isEmpty()) {
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auto input = OIIO::ImageInput::open(fn.toStdString());
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if (input) {
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PixelFormat::Format image_format = PixelFormat::OIIOFormatToOliveFormat(input->spec().format,
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input->spec().nchannels == kRGBAChannels);
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// Ensure the following texture operations are done in our context (in case we're in a separate window for instance)
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makeCurrent();
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if (!texture_.IsCreated()
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|| texture_.width() != input->spec().width
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|| texture_.height() != input->spec().height
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|| texture_.format() != image_format) {
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load_buffer_.destroy();
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texture_.Destroy();
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load_buffer_.set_video_params(VideoRenderingParams(input->spec().width, input->spec().height, image_format));
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load_buffer_.allocate();
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texture_.Create(context(), input->spec().width, input->spec().height, image_format);
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}
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input->read_image(input->spec().format, load_buffer_.data());
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input->close();
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texture_.Upload(load_buffer_.data());
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emit LoadedBuffer(&load_buffer_);
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doneCurrent();
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has_image_ = true;
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#if OIIO_VERSION < 10903
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OIIO::ImageInput::destroy(input);
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#endif
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} else {
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qWarning() << "OIIO Error:" << OIIO::geterror().c_str();
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}
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}
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update();
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if (has_image_) {
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emit LoadedBuffer(&load_buffer_);
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} else {
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emit LoadedBuffer(nullptr);
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}
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}
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void ViewerGLWidget::SetSignalCursorColorEnabled(bool e)
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{
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signal_cursor_color_ = e;
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setMouseTracking(e);
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// Create frame buffer for reading from texture
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if (e != frame_buffer_.IsCreated()) {
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makeCurrent();
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if (e) {
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frame_buffer_.Create(context());
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} else {
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frame_buffer_.Destroy();
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}
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doneCurrent();
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}
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}
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void ViewerGLWidget::SetImageFromLoadBuffer(Frame *in_buffer)
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{
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has_image_ = in_buffer;
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if (has_image_) {
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makeCurrent();
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if (!texture_.IsCreated()
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|| texture_.width() != in_buffer->width()
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|| texture_.height() != in_buffer->height()
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|| texture_.format() != in_buffer->format()) {
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texture_.Create(context(), in_buffer->width(), in_buffer->height(), in_buffer->format(), in_buffer->data());
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} else {
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texture_.Upload(in_buffer->data());
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}
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doneCurrent();
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}
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update();
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}
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void ViewerGLWidget::SetOCIODisplay(const QString &display)
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{
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ocio_display_ = display;
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// Determine if the selected view is available in this display
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if (color_manager_
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&& !color_manager_->ListAvailableViews(ocio_display_).contains(ocio_view_)) {
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// If not, set to the default view for this display
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ocio_view_ = color_manager_->GetDefaultView(ocio_display_);
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}
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SetupColorProcessor();
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update();
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}
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void ViewerGLWidget::SetOCIOView(const QString &view)
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{
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ocio_view_ = view;
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SetupColorProcessor();
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update();
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}
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void ViewerGLWidget::SetOCIOLook(const QString &look)
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{
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ocio_look_ = look;
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SetupColorProcessor();
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update();
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}
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ColorManager *ViewerGLWidget::color_manager() const
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{
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return color_manager_;
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}
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const QString &ViewerGLWidget::ocio_display() const
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{
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return ocio_display_;
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}
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const QString &ViewerGLWidget::ocio_view() const
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{
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return ocio_view_;
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}
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const QString &ViewerGLWidget::ocio_look() const
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{
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return ocio_look_;
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}
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void ViewerGLWidget::ConnectSibling(ViewerGLWidget *sibling)
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{
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connect(this, &ViewerGLWidget::LoadedBuffer, sibling, &ViewerGLWidget::SetImageFromLoadBuffer, Qt::QueuedConnection);
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sibling->SetImageFromLoadBuffer(&load_buffer_);
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}
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void ViewerGLWidget::mousePressEvent(QMouseEvent *event)
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{
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QOpenGLWidget::mousePressEvent(event);
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emit DragStarted();
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}
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void ViewerGLWidget::mouseMoveEvent(QMouseEvent *event)
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{
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QOpenGLWidget::mouseMoveEvent(event);
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if (signal_cursor_color_) {
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Color reference, display;
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if (has_image_) {
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QVector3D pixel_pos(static_cast<float>(event->x()) / static_cast<float>(width()) * 2.0f - 1.0f,
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static_cast<float>(event->y()) / static_cast<float>(height()) * 2.0f - 1.0f,
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0);
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pixel_pos = pixel_pos * matrix_.inverted();
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int frame_x = qRound((pixel_pos.x() + 1.0f) * 0.5f * load_buffer_.width());
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int frame_y = qRound((pixel_pos.y() + 1.0f) * 0.5f * load_buffer_.height());
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reference = load_buffer_.get_pixel(frame_x, frame_y);
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display = color_service_->ConvertColor(reference);
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}
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emit CursorColor(reference, display);
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}
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}
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void ViewerGLWidget::SetOCIOParameters(const QString &display, const QString &view, const QString &look)
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{
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ocio_display_ = display;
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ocio_view_ = view;
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ocio_look_ = look;
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SetupColorProcessor();
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update();
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}
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void ViewerGLWidget::initializeGL()
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{
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SetupColorProcessor();
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connect(context(), &QOpenGLContext::aboutToBeDestroyed, this, &ViewerGLWidget::ContextCleanup, Qt::DirectConnection);
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#ifdef Q_OS_LINUX
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if (!nouveau_check_done_) {
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const char* vendor = reinterpret_cast<const char*>(context()->functions()->glGetString(GL_VENDOR));
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if (!strcmp(vendor, "nouveau")) {
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// Working with Qt widgets in this function segfaults, so we queue the messagebox for later
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QMetaObject::invokeMethod(this,
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"ShowNouveauWarning",
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Qt::QueuedConnection);
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}
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nouveau_check_done_ = true;
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}
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#endif
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}
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void ViewerGLWidget::paintGL()
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{
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// Get functions attached to this context (they will already be initialized)
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QOpenGLFunctions* f = context()->functions();
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// Clear background to empty
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f->glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
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f->glClear(GL_COLOR_BUFFER_BIT);
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// We only draw if we have a pipeline
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if (!has_image_ || !color_service_ || !texture_.IsCreated()) {
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return;
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}
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// Bind retrieved texture
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f->glBindTexture(GL_TEXTURE_2D, texture_.texture());
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// Blit using the color service
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color_service_->ProcessOpenGL(true, matrix_);
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// Release retrieved texture
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f->glBindTexture(GL_TEXTURE_2D, 0);
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}
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void ViewerGLWidget::RefreshColorPipeline()
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{
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if (!color_manager_) {
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color_service_ = nullptr;
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return;
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}
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QStringList displays = color_manager_->ListAvailableDisplays();
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if (!displays.contains(ocio_display_)) {
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ocio_display_ = color_manager_->GetDefaultDisplay();
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}
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QStringList views = color_manager_->ListAvailableViews(ocio_display_);
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if (!views.contains(ocio_view_)) {
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ocio_view_ = color_manager_->GetDefaultView(ocio_display_);
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}
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QStringList looks = color_manager_->ListAvailableLooks();
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if (!looks.contains(ocio_look_)) {
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ocio_look_.clear();
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}
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SetupColorProcessor();
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update();
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}
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#ifdef Q_OS_LINUX
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void ViewerGLWidget::ShowNouveauWarning()
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{
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QMessageBox::warning(this,
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tr("Driver Warning"),
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tr("Olive has detected your system is using the Nouveau graphics driver.\n\nThis driver is "
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"known to have stability and performance issues with Olive. It is highly recommended "
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"you install the proprietary NVIDIA driver before continuing to use Olive."),
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QMessageBox::Ok);
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}
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#endif
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void ViewerGLWidget::SetupColorProcessor()
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{
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if (!context()) {
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return;
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}
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color_service_ = nullptr;
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if (color_manager_) {
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// (Re)create color processor
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try {
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color_service_ = OpenGLColorProcessor::Create(color_manager_->GetConfig(),
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OCIO::ROLE_SCENE_LINEAR,
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ocio_display_,
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ocio_view_,
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ocio_look_);
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makeCurrent();
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color_service_->Enable(context(), true);
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doneCurrent();
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} catch (OCIO::Exception& e) {
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QMessageBox::critical(this,
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tr("OpenColorIO Error"),
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tr("Failed to set color configuration: %1").arg(e.what()),
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QMessageBox::Ok);
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}
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} else {
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color_service_ = nullptr;
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}
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}
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void ViewerGLWidget::ContextCleanup()
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{
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makeCurrent();
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color_service_ = nullptr;
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texture_.Destroy();
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doneCurrent();
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}
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