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stats: make textures "global objects"

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These were leaking. Instead register them as global objects,
so they will be deleted on exit.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
This commit is contained in:
Berthold Stoeger 2022-03-13 18:49:48 +01:00 committed by Dirk Hohndel
parent ee9344eccf
commit 8a544f74ec
1 changed files with 5 additions and 8 deletions
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13
stats/chartitem.cpp
View file

@ -2,6 +2,7 @@
#include "chartitem.h"
#include "statscolors.h"
#include "statsview.h"
#include "core/globals.h"
#include <cmath>
#include <QQuickWindow>
@ -136,10 +137,6 @@ static QSGTexture *createScatterTexture(StatsView &view, const QColor &color, co
return view.w()->createTextureFromImage(img, QQuickWindow::TextureHasAlphaChannel);
}
// Note: Originally these were std::unique_ptrs, which automatically
// freed the textures on exit. However, destroying textures after
// QApplication finished its thread leads to crashes. Therefore, these
// are now normal pointers and the texture objects are leaked.
static QSGTexture *scatterItemTexture = nullptr;
static QSGTexture *scatterItemSelectedTexture = nullptr;
static QSGTexture *scatterItemHighlightedTexture = nullptr;
@ -161,9 +158,9 @@ QSGTexture *ChartScatterItem::getTexture() const
void ChartScatterItem::render()
{
if (!scatterItemTexture) {
scatterItemTexture = createScatterTexture(view, fillColor, borderColor);
scatterItemSelectedTexture = createScatterTexture(view, selectedColor, selectedBorderColor);
scatterItemHighlightedTexture = createScatterTexture(view, highlightedColor, highlightedBorderColor);
scatterItemTexture = register_global(createScatterTexture(view, fillColor, borderColor));
scatterItemSelectedTexture = register_global(createScatterTexture(view, selectedColor, selectedBorderColor));
scatterItemHighlightedTexture = register_global(createScatterTexture(view, highlightedColor, highlightedBorderColor));
}
if (!node) {
createNode(view.w()->createImageNode());
@ -437,7 +434,7 @@ QSGTexture *ChartBarItem::getSelectedTexture() const
img.fill(Qt::transparent);
img.setPixelColor(0, 0, selectionOverlayColor);
img.setPixelColor(1, 1, selectionOverlayColor);
selectedTexture = view.w()->createTextureFromImage(img, QQuickWindow::TextureHasAlphaChannel);
selectedTexture = register_global(view.w()->createTextureFromImage(img, QQuickWindow::TextureHasAlphaChannel));
}
return selectedTexture;
}