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BACKENDS: HiDPI support in OpenGL backend

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This commit is contained in:
Eugene Sandulenko 2020-10-29 19:12:24 +01:00
parent b29f457548
commit 5e395d166a
7 changed files with 83 additions and 12 deletions
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6
backends/graphics/opengl/opengl-graphics.cpp
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@ -955,17 +955,13 @@ void OpenGLGraphicsManager::handleResizeImpl(const int width, const int height,
overlayWidth = MAX<uint>(overlayWidth, 256);
overlayHeight = MAX<uint>(overlayHeight, 200);
// HACK: Reduce the size of the overlay on high DPI screens.
overlayWidth = fracToInt(overlayWidth * (intToFrac(90) / xdpi));
overlayHeight = fracToInt(overlayHeight * (intToFrac(90) / ydpi));
if (!_overlay || _overlay->getFormat() != _defaultFormatAlpha) {
delete _overlay;
_overlay = nullptr;
_overlay = createSurface(_defaultFormatAlpha);
assert(_overlay);
// We should NOT always filter the overlay with GL_LINEAR.
// We should NOT always filter the overlay with GL_LINEAR.
// In previous versions we always did use GL_LINEAR to assure the UI
// would be readable in case it needed to be scaled -- it would not affect it otherwise.
// However in modern devices due to larger screen size the UI display looks blurry