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authorMateusz Zalega <mateusz@appliedsourcery.com>2018-08-16 21:44:37 +0200
committerMateusz Zalega <mateusz@appliedsourcery.com>2018-10-23 15:43:51 +0200
commitd03291eeb1efbb1005eba5a8a4b2c92ef66d2fd5 (patch)
tree997b4a31291efaca2d1f60c54e95b81785a9ddcc /gui/fpgaviewwidget.h
parentb5faa7ad102b8308eeb0c73a3849909bf4b1b635 (diff)
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gui: improved FPGAViewWidget::paintGL() performance
Profiling revealed that memcpy() in QOpenGLBuffer::allocate() had been taking the most time during paintGL() calls. I've been able to take the CPU usage down to about 1/4 of its previous values by caching elements in VBOs and updating them only after subsequent calls to renderGraphicElement(). Signed-off-by: Mateusz Zalega <mateusz@appliedsourcery.com>
Diffstat (limited to 'gui/fpgaviewwidget.h')
-rw-r--r--gui/fpgaviewwidget.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/gui/fpgaviewwidget.h b/gui/fpgaviewwidget.h
index 4be41bf5..697ace21 100644
--- a/gui/fpgaviewwidget.h
+++ b/gui/fpgaviewwidget.h
@@ -304,6 +304,7 @@ class FPGAViewWidget : public QOpenGLWidget, protected QOpenGLFunctions
QVector4D mouseToWorldCoordinates(int x, int y);
QVector4D mouseToWorldDimensions(float x, float y);
QMatrix4x4 getProjection(void);
+ void update_vbos();
};
NEXTPNR_NAMESPACE_END