diff options
Diffstat (limited to 'src/gui/painting/qplatformbackingstore.cpp')
-rw-r--r-- | src/gui/painting/qplatformbackingstore.cpp | 32 |
1 files changed, 23 insertions, 9 deletions
diff --git a/src/gui/painting/qplatformbackingstore.cpp b/src/gui/painting/qplatformbackingstore.cpp index 6cb115afba..8ab22beb31 100644 --- a/src/gui/painting/qplatformbackingstore.cpp +++ b/src/gui/painting/qplatformbackingstore.cpp @@ -50,6 +50,7 @@ #include <QtGui/QOpenGLFunctions> #ifndef QT_NO_OPENGL #include <QtGui/qopengltextureblitter.h> +#include <QtGui/qoffscreensurface.h> #endif #include <qpa/qplatformgraphicsbuffer.h> #include <qpa/qplatformgraphicsbufferhelper.h> @@ -95,14 +96,15 @@ public: ~QPlatformBackingStorePrivate() { #ifndef QT_NO_OPENGL - QOpenGLContext *ctx = QOpenGLContext::currentContext(); - if (ctx) { + if (context) { + QOffscreenSurface offscreenSurface; + offscreenSurface.setFormat(context->format()); + offscreenSurface.create(); + context->makeCurrent(&offscreenSurface); if (textureId) - ctx->functions()->glDeleteTextures(1, &textureId); + context->functions()->glDeleteTextures(1, &textureId); if (blitter) blitter->destroy(); - } else if (textureId || blitter) { - qWarning("No context current during QPlatformBackingStore destruction, OpenGL resources not released"); } delete blitter; #endif @@ -110,6 +112,7 @@ public: QWindow *window; QBackingStore *backingStore; #ifndef QT_NO_OPENGL + QScopedPointer<QOpenGLContext> context; mutable GLuint textureId; mutable QSize textureSize; mutable bool needsSwizzle; @@ -316,20 +319,31 @@ static void blitTextureForWidget(const QPlatformTextureList *textures, int idx, void QPlatformBackingStore::composeAndFlush(QWindow *window, const QRegion ®ion, const QPoint &offset, - QPlatformTextureList *textures, QOpenGLContext *context, + QPlatformTextureList *textures, bool translucentBackground) { if (!qt_window_private(window)->receivedExpose) return; - if (!context->makeCurrent(window)) { + if (!d_ptr->context) { + d_ptr->context.reset(new QOpenGLContext); + d_ptr->context->setFormat(d_ptr->window->requestedFormat()); + d_ptr->context->setScreen(d_ptr->window->screen()); + d_ptr->context->setShareContext(qt_window_private(d_ptr->window)->shareContext()); + if (!d_ptr->context->create()) { + qWarning("composeAndFlush: QOpenGLContext creation failed"); + return; + } + } + + if (!d_ptr->context->makeCurrent(window)) { qWarning("composeAndFlush: makeCurrent() failed"); return; } QWindowPrivate::get(window)->lastComposeTime.start(); - QOpenGLFunctions *funcs = context->functions(); + QOpenGLFunctions *funcs = d_ptr->context->functions(); funcs->glViewport(0, 0, window->width() * window->devicePixelRatio(), window->height() * window->devicePixelRatio()); funcs->glClearColor(0, 0, 0, translucentBackground ? 0 : 1); funcs->glClear(GL_COLOR_BUFFER_BIT); @@ -435,7 +449,7 @@ void QPlatformBackingStore::composeAndFlush(QWindow *window, const QRegion ®i funcs->glDisable(GL_BLEND); d_ptr->blitter->release(); - context->swapBuffers(window); + d_ptr->context->swapBuffers(window); } #endif /*! |