From 920472c85f6a5cd96344c28dbba0f199c34c6c10 Mon Sep 17 00:00:00 2001 From: Laszlo Agocs Date: Wed, 27 Jan 2016 18:12:44 +0100 Subject: Fix clipRect interpretation in composited backingstores Empty clipRect means "clip away completely", not "no clipping". Task-number: QTBUG-50719 Change-Id: I6a9dd66130716a921fe9fc245582274e3c9718fe Reviewed-by: Paul Olav Tvete --- src/gui/painting/qplatformbackingstore.cpp | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'src/gui/painting') diff --git a/src/gui/painting/qplatformbackingstore.cpp b/src/gui/painting/qplatformbackingstore.cpp index 8e40eb6dff..5ac903c71d 100644 --- a/src/gui/painting/qplatformbackingstore.cpp +++ b/src/gui/painting/qplatformbackingstore.cpp @@ -263,12 +263,14 @@ static inline QRect toBottomLeftRect(const QRect &topLeftRect, int windowHeight) static void blitTextureForWidget(const QPlatformTextureList *textures, int idx, QWindow *window, const QRect &deviceWindowRect, QOpenGLTextureBlitter *blitter, const QPoint &offset) { + const QRect clipRect = textures->clipRect(idx); + if (clipRect.isEmpty()) + return; + QRect rectInWindow = textures->geometry(idx); // relative to the TLW, not necessarily our window (if the flush is for a native child widget), have to adjust rectInWindow.translate(-offset); - QRect clipRect = textures->clipRect(idx); - if (clipRect.isEmpty()) - clipRect = QRect(QPoint(0, 0), rectInWindow.size()); + const QRect clippedRectInWindow = rectInWindow & clipRect.translated(rectInWindow.topLeft()); const QRect srcRect = toBottomLeftRect(clipRect, rectInWindow.height()); -- cgit v1.2.3 From b6630a5181cfc3935b13052e0a32d4008d89cdb6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Morten=20Johan=20S=C3=B8rvig?= Date: Tue, 26 Jan 2016 15:17:09 +0100 Subject: Scale offset as well on QBackingStore flush MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Also use the target window ("win") as context instead of d->window. Change-Id: I5b0fa3bb857526e4a4bc9c5e44670593da1dfe7c Task-number: QTBUG-50487 Reviewed-by: Friedemann Kleint Reviewed-by: Morten Johan Sørvig Reviewed-by: Paul Olav Tvete --- src/gui/painting/qbackingstore.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'src/gui/painting') diff --git a/src/gui/painting/qbackingstore.cpp b/src/gui/painting/qbackingstore.cpp index 8a5a6d4fcf..c39675b0b6 100644 --- a/src/gui/painting/qbackingstore.cpp +++ b/src/gui/painting/qbackingstore.cpp @@ -106,7 +106,8 @@ void QBackingStore::flush(const QRegion ®ion, QWindow *win, const QPoint &off } #endif - d_ptr->platformBackingStore->flush(win, QHighDpi::toNativeLocalRegion(region, d_ptr->window), offset); + d_ptr->platformBackingStore->flush(win, QHighDpi::toNativeLocalRegion(region, win), + QHighDpi::toNativeLocalPosition(offset, win)); } /*! -- cgit v1.2.3 From 4c1b6cdd292bc571a4104fff8b5b54d47970cca1 Mon Sep 17 00:00:00 2001 From: Laszlo Agocs Date: Fri, 5 Feb 2016 09:56:49 +0100 Subject: Support arbitrary strides in the QPlatformBackingStore compositor Otherwise platform backingstores providing QImages with extra pixels would break horribly. The only such platform is wayland for now. Previously the need to support this case was masked by the RGBA8888 image conversion that happened always with wayland due to its ARGB32_Pre format. With the recent improvements this is not done anymore and so the problems became apparent. Task-number: QTBUG-50894 Change-Id: I27d7a1c8e25d152ca1227af1e2c38f7d4b6acbab Reviewed-by: Paul Olav Tvete --- src/gui/painting/qplatformbackingstore.cpp | 25 +++++++++++++++++++++---- 1 file changed, 21 insertions(+), 4 deletions(-) (limited to 'src/gui/painting') diff --git a/src/gui/painting/qplatformbackingstore.cpp b/src/gui/painting/qplatformbackingstore.cpp index 5ac903c71d..33d5e76e52 100644 --- a/src/gui/painting/qplatformbackingstore.cpp +++ b/src/gui/painting/qplatformbackingstore.cpp @@ -516,7 +516,23 @@ GLuint QPlatformBackingStore::toTexture(const QRegion &dirtyRegion, QSize *textu if (needsConversion) image = image.convertToFormat(QImage::Format_RGBA8888); + // The image provided by the backingstore may have a stride larger than width * 4, for + // instance on platforms that manually implement client-side decorations. + static const int bytesPerPixel = 4; + const int strideInPixels = image.bytesPerLine() / bytesPerPixel; + const bool hasUnpackRowLength = !ctx->isOpenGLES() || ctx->format().majorVersion() >= 3; + QOpenGLFunctions *funcs = ctx->functions(); + + if (hasUnpackRowLength) { + funcs->glPixelStorei(GL_UNPACK_ROW_LENGTH, strideInPixels); + } else if (strideInPixels != image.width()) { + // No UNPACK_ROW_LENGTH on ES 2.0 and yet we would need it. This case is typically + // hit with QtWayland which is rarely used in combination with a ES2.0-only GL + // implementation. Therefore, accept the performance hit and do a copy. + image = image.copy(); + } + if (resized) { if (d_ptr->textureId) funcs->glDeleteTextures(1, &d_ptr->textureId); @@ -538,11 +554,9 @@ GLuint QPlatformBackingStore::toTexture(const QRegion &dirtyRegion, QSize *textu QRect imageRect = image.rect(); QRect rect = dirtyRegion.boundingRect() & imageRect; - if (!ctx->isOpenGLES() || ctx->format().majorVersion() >= 3) { - funcs->glPixelStorei(GL_UNPACK_ROW_LENGTH, image.width()); + if (hasUnpackRowLength) { funcs->glTexSubImage2D(GL_TEXTURE_2D, 0, rect.x(), rect.y(), rect.width(), rect.height(), GL_RGBA, pixelType, - image.constScanLine(rect.y()) + rect.x() * 4); - funcs->glPixelStorei(GL_UNPACK_ROW_LENGTH, 0); + image.constScanLine(rect.y()) + rect.x() * bytesPerPixel); } else { // if the rect is wide enough it's cheaper to just // extend it instead of doing an image copy @@ -564,6 +578,9 @@ GLuint QPlatformBackingStore::toTexture(const QRegion &dirtyRegion, QSize *textu } } + if (hasUnpackRowLength) + funcs->glPixelStorei(GL_UNPACK_ROW_LENGTH, 0); + return d_ptr->textureId; } #endif // QT_NO_OPENGL -- cgit v1.2.3