diff options
Diffstat (limited to 'src/gui/painting/qplatformbackingstore.cpp')
| -rw-r--r-- | src/gui/painting/qplatformbackingstore.cpp | 604 |
1 files changed, 121 insertions, 483 deletions
diff --git a/src/gui/painting/qplatformbackingstore.cpp b/src/gui/painting/qplatformbackingstore.cpp index c092a7153f..f7c4df40c8 100644 --- a/src/gui/painting/qplatformbackingstore.cpp +++ b/src/gui/painting/qplatformbackingstore.cpp @@ -1,82 +1,14 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtGui module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only #include "qplatformbackingstore.h" #include <qwindow.h> #include <qpixmap.h> +#include <private/qbackingstorerhisupport_p.h> +#include <private/qbackingstoredefaultcompositor_p.h> #include <private/qwindow_p.h> -#include <qopengl.h> -#include <qopenglcontext.h> -#include <QtGui/QMatrix4x4> -#include <QtGui/QOpenGLShaderProgram> -#include <QtGui/QOpenGLContext> -#include <QtGui/QOpenGLFunctions> -#ifndef QT_NO_OPENGL -#include <QtGui/qopengltextureblitter.h> -#include <QtGui/qoffscreensurface.h> -#endif -#include <qpa/qplatformgraphicsbuffer.h> -#include <qpa/qplatformgraphicsbufferhelper.h> - -#ifndef GL_TEXTURE_BASE_LEVEL -#define GL_TEXTURE_BASE_LEVEL 0x813C -#endif -#ifndef GL_TEXTURE_MAX_LEVEL -#define GL_TEXTURE_MAX_LEVEL 0x813D -#endif -#ifndef GL_UNPACK_ROW_LENGTH -#define GL_UNPACK_ROW_LENGTH 0x0CF2 -#endif -#ifndef GL_RGB10_A2 -#define GL_RGB10_A2 0x8059 -#endif -#ifndef GL_UNSIGNED_INT_2_10_10_10_REV -#define GL_UNSIGNED_INT_2_10_10_10_REV 0x8368 -#endif - -#ifndef GL_FRAMEBUFFER_SRGB -#define GL_FRAMEBUFFER_SRGB 0x8DB9 -#endif -#ifndef GL_FRAMEBUFFER_SRGB_CAPABLE -#define GL_FRAMEBUFFER_SRGB_CAPABLE 0x8DBA -#endif +#include <QtCore/private/qobject_p.h> QT_BEGIN_NAMESPACE @@ -88,53 +20,30 @@ public: QPlatformBackingStorePrivate(QWindow *w) : window(w) , backingStore(nullptr) -#ifndef QT_NO_OPENGL - , textureId(0) - , blitter(nullptr) -#endif { } - ~QPlatformBackingStorePrivate() - { -#ifndef QT_NO_OPENGL - if (context) { - QOffscreenSurface offscreenSurface; - offscreenSurface.setFormat(context->format()); - offscreenSurface.create(); - context->makeCurrent(&offscreenSurface); - if (textureId) - context->functions()->glDeleteTextures(1, &textureId); - if (blitter) - blitter->destroy(); - } - delete blitter; -#endif - } QWindow *window; QBackingStore *backingStore; -#ifndef QT_NO_OPENGL - QScopedPointer<QOpenGLContext> context; - mutable GLuint textureId; - mutable QSize textureSize; - mutable bool needsSwizzle; - mutable bool premultiplied; - QOpenGLTextureBlitter *blitter; -#endif -}; -#ifndef QT_NO_OPENGL + // The order matters. if it needs to be rearranged in the future, call + // reset() explicitly from the dtor in the correct order. + // (first the compositor, then the rhiSupport) + QBackingStoreRhiSupport rhiSupport; + QBackingStoreDefaultCompositor compositor; +}; struct QBackingstoreTextureInfo { void *source; // may be null - GLuint textureId; + QRhiTexture *texture; + QRhiTexture *textureExtra; QRect rect; QRect clipRect; QPlatformTextureList::Flags flags; }; -Q_DECLARE_TYPEINFO(QBackingstoreTextureInfo, Q_MOVABLE_TYPE); +Q_DECLARE_TYPEINFO(QBackingstoreTextureInfo, Q_RELOCATABLE_TYPE); class QPlatformTextureListPrivate : public QObjectPrivate { @@ -144,7 +53,7 @@ public: { } - QVector<QBackingstoreTextureInfo> textures; + QList<QBackingstoreTextureInfo> textures; bool locked; }; @@ -160,13 +69,19 @@ QPlatformTextureList::~QPlatformTextureList() int QPlatformTextureList::count() const { Q_D(const QPlatformTextureList); - return d->textures.count(); + return d->textures.size(); +} + +QRhiTexture *QPlatformTextureList::texture(int index) const +{ + Q_D(const QPlatformTextureList); + return d->textures.at(index).texture; } -GLuint QPlatformTextureList::textureId(int index) const +QRhiTexture *QPlatformTextureList::textureExtra(int index) const { Q_D(const QPlatformTextureList); - return d->textures.at(index).textureId; + return d->textures.at(index).textureExtra; } void *QPlatformTextureList::source(int index) @@ -208,13 +123,29 @@ bool QPlatformTextureList::isLocked() const return d->locked; } -void QPlatformTextureList::appendTexture(void *source, GLuint textureId, const QRect &geometry, +void QPlatformTextureList::appendTexture(void *source, QRhiTexture *texture, const QRect &geometry, const QRect &clipRect, Flags flags) { Q_D(QPlatformTextureList); QBackingstoreTextureInfo bi; bi.source = source; - bi.textureId = textureId; + bi.texture = texture; + bi.textureExtra = nullptr; + bi.rect = geometry; + bi.clipRect = clipRect; + bi.flags = flags; + d->textures.append(bi); +} + +void QPlatformTextureList::appendTexture(void *source, QRhiTexture *textureLeft, QRhiTexture *textureRight, const QRect &geometry, + const QRect &clipRect, Flags flags) +{ + Q_D(QPlatformTextureList); + + QBackingstoreTextureInfo bi; + bi.source = source; + bi.texture = textureLeft; + bi.textureExtra = textureRight; bi.rect = geometry; bi.clipRect = clipRect; bi.flags = flags; @@ -226,7 +157,6 @@ void QPlatformTextureList::clear() Q_D(QPlatformTextureList); d->textures.clear(); } -#endif // QT_NO_OPENGL /*! \class QPlatformBackingStore @@ -239,275 +169,81 @@ void QPlatformTextureList::clear() windows. */ -#ifndef QT_NO_OPENGL - -static inline QRect deviceRect(const QRect &rect, QWindow *window) -{ - QRect deviceRect(rect.topLeft() * window->devicePixelRatio(), - rect.size() * window->devicePixelRatio()); - return deviceRect; -} - -static inline QPoint deviceOffset(const QPoint &pt, QWindow *window) -{ - return pt * window->devicePixelRatio(); -} - -static QRegion deviceRegion(const QRegion ®ion, QWindow *window, const QPoint &offset) -{ - if (offset.isNull() && window->devicePixelRatio() <= 1) - return region; +/*! + Flushes the given \a region from the specified \a window. - QVector<QRect> rects; - rects.reserve(region.rectCount()); - for (const QRect &rect : region) - rects.append(deviceRect(rect.translated(offset), window)); + \note \a region is relative to the window which may not be top-level in case + \a window corresponds to a native child widget. \a offset is the position of + the native child relative to the top-level window. - QRegion deviceRegion; - deviceRegion.setRects(rects.constData(), rects.count()); - return deviceRegion; -} + Unlike rhiFlush(), this function's default implementation does nothing. It + is expected that subclasses provide a platform-specific (non-QRhi-based) + implementation, if applicable on the given platform. -static inline QRect toBottomLeftRect(const QRect &topLeftRect, int windowHeight) -{ - return QRect(topLeftRect.x(), windowHeight - topLeftRect.bottomRight().y() - 1, - topLeftRect.width(), topLeftRect.height()); -} - -static void blitTextureForWidget(const QPlatformTextureList *textures, int idx, QWindow *window, const QRect &deviceWindowRect, - QOpenGLTextureBlitter *blitter, const QPoint &offset, bool canUseSrgb) + \sa rhiFlush() + */ +void QPlatformBackingStore::flush(QWindow *window, const QRegion ®ion, 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); - - const QRect clippedRectInWindow = rectInWindow & clipRect.translated(rectInWindow.topLeft()); - const QRect srcRect = toBottomLeftRect(clipRect, rectInWindow.height()); - - const QMatrix4x4 target = QOpenGLTextureBlitter::targetTransform(deviceRect(clippedRectInWindow, window), - deviceWindowRect); - - const QMatrix3x3 source = QOpenGLTextureBlitter::sourceTransform(deviceRect(srcRect, window), - deviceRect(rectInWindow, window).size(), - QOpenGLTextureBlitter::OriginBottomLeft); - - QOpenGLFunctions *funcs = QOpenGLContext::currentContext()->functions(); - const bool srgb = textures->flags(idx).testFlag(QPlatformTextureList::TextureIsSrgb); - if (srgb && canUseSrgb) - funcs->glEnable(GL_FRAMEBUFFER_SRGB); - - blitter->blit(textures->textureId(idx), target, source); - - if (srgb && canUseSrgb) - funcs->glDisable(GL_FRAMEBUFFER_SRGB); + Q_UNUSED(window); + Q_UNUSED(region); + Q_UNUSED(offset); } /*! - Flushes the given \a region from the specified \a window onto the - screen, and composes it with the specified \a textures. + Flushes the given \a region from the specified \a window, and compositing + it with the specified \a textures list. - The default implementation retrieves the contents using toTexture() - and composes using OpenGL. May be reimplemented in subclasses if there - is a more efficient native way to do it. + The default implementation retrieves the contents using toTexture() and + composes using QRhi with OpenGL, Metal, Vulkan, or Direct 3D underneath. + May be reimplemented in subclasses if customization is desired. \note \a region is relative to the window which may not be top-level in case \a window corresponds to a native child widget. \a offset is the position of the native child relative to the top-level window. - */ - -void QPlatformBackingStore::composeAndFlush(QWindow *window, const QRegion ®ion, - const QPoint &offset, - QPlatformTextureList *textures, - bool translucentBackground) -{ - if (!qt_window_private(window)->receivedExpose) - return; - - 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()) { - qCWarning(lcQpaBackingStore, "composeAndFlush: QOpenGLContext creation failed"); - return; - } - } - - bool current = d_ptr->context->makeCurrent(window); - - if (!current && !d_ptr->context->isValid()) { - delete d_ptr->blitter; - d_ptr->blitter = nullptr; - d_ptr->textureId = 0; - current = d_ptr->context->create() && d_ptr->context->makeCurrent(window); - } - - if (!current) { - qCWarning(lcQpaBackingStore, "composeAndFlush: makeCurrent() failed"); - return; - } - - qCDebug(lcQpaBackingStore) << "Composing and flushing" << region << "of" << window - << "at offset" << offset << "with" << textures->count() << "texture(s) in" << textures; - - QWindowPrivate::get(window)->lastComposeTime.start(); - - QOpenGLFunctions *funcs = d_ptr->context->functions(); - funcs->glViewport(0, 0, qRound(window->width() * window->devicePixelRatio()), qRound(window->height() * window->devicePixelRatio())); - funcs->glClearColor(0, 0, 0, translucentBackground ? 0 : 1); - funcs->glClear(GL_COLOR_BUFFER_BIT); - if (!d_ptr->blitter) { - d_ptr->blitter = new QOpenGLTextureBlitter; - d_ptr->blitter->create(); - } - - d_ptr->blitter->bind(); - - const QRect deviceWindowRect = deviceRect(QRect(QPoint(), window->size()), window); - const QPoint deviceWindowOffset = deviceOffset(offset, window); - - bool canUseSrgb = false; - // If there are any sRGB textures in the list, check if the destination - // framebuffer is sRGB capable. - for (int i = 0; i < textures->count(); ++i) { - if (textures->flags(i).testFlag(QPlatformTextureList::TextureIsSrgb)) { - GLint cap = 0; - funcs->glGetIntegerv(GL_FRAMEBUFFER_SRGB_CAPABLE, &cap); - if (cap) - canUseSrgb = true; - break; - } - } - - // Textures for renderToTexture widgets. - for (int i = 0; i < textures->count(); ++i) { - if (!textures->flags(i).testFlag(QPlatformTextureList::StacksOnTop)) - blitTextureForWidget(textures, i, window, deviceWindowRect, d_ptr->blitter, offset, canUseSrgb); - } - - // Backingstore texture with the normal widgets. - GLuint textureId = 0; - QOpenGLTextureBlitter::Origin origin = QOpenGLTextureBlitter::OriginTopLeft; - if (QPlatformGraphicsBuffer *graphicsBuffer = this->graphicsBuffer()) { - if (graphicsBuffer->size() != d_ptr->textureSize) { - if (d_ptr->textureId) - funcs->glDeleteTextures(1, &d_ptr->textureId); - funcs->glGenTextures(1, &d_ptr->textureId); - funcs->glBindTexture(GL_TEXTURE_2D, d_ptr->textureId); - QOpenGLContext *ctx = QOpenGLContext::currentContext(); - if (!ctx->isOpenGLES() || ctx->format().majorVersion() >= 3) { - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0); - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0); - } - funcs->glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - funcs->glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - funcs->glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); - funcs->glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); - - if (QPlatformGraphicsBufferHelper::lockAndBindToTexture(graphicsBuffer, &d_ptr->needsSwizzle, &d_ptr->premultiplied)) { - d_ptr->textureSize = graphicsBuffer->size(); - } else { - d_ptr->textureSize = QSize(0,0); - } - - graphicsBuffer->unlock(); - } else if (!region.isEmpty()){ - funcs->glBindTexture(GL_TEXTURE_2D, d_ptr->textureId); - QPlatformGraphicsBufferHelper::lockAndBindToTexture(graphicsBuffer, &d_ptr->needsSwizzle, &d_ptr->premultiplied); - graphicsBuffer->unlock(); - } - - if (graphicsBuffer->origin() == QPlatformGraphicsBuffer::OriginBottomLeft) - origin = QOpenGLTextureBlitter::OriginBottomLeft; - textureId = d_ptr->textureId; - } else { - TextureFlags flags; - textureId = toTexture(deviceRegion(region, window, offset), &d_ptr->textureSize, &flags); - d_ptr->needsSwizzle = (flags & TextureSwizzle) != 0; - d_ptr->premultiplied = (flags & TexturePremultiplied) != 0; - if (flags & TextureFlip) - origin = QOpenGLTextureBlitter::OriginBottomLeft; - } - - funcs->glEnable(GL_BLEND); - if (d_ptr->premultiplied) - funcs->glBlendFuncSeparate(GL_ONE, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE); - else - funcs->glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE); - - if (textureId) { - if (d_ptr->needsSwizzle) - d_ptr->blitter->setRedBlueSwizzle(true); - // The backingstore is for the entire tlw. - // In case of native children offset tells the position relative to the tlw. - const QRect srcRect = toBottomLeftRect(deviceWindowRect.translated(deviceWindowOffset), d_ptr->textureSize.height()); - const QMatrix3x3 source = QOpenGLTextureBlitter::sourceTransform(srcRect, - d_ptr->textureSize, - origin); - d_ptr->blitter->blit(textureId, QMatrix4x4(), source); - if (d_ptr->needsSwizzle) - d_ptr->blitter->setRedBlueSwizzle(false); - } - - // Textures for renderToTexture widgets that have WA_AlwaysStackOnTop set. - bool blendIsPremultiplied = d_ptr->premultiplied; - for (int i = 0; i < textures->count(); ++i) { - const QPlatformTextureList::Flags flags = textures->flags(i); - if (flags.testFlag(QPlatformTextureList::NeedsPremultipliedAlphaBlending)) { - if (!blendIsPremultiplied) { - funcs->glBlendFuncSeparate(GL_ONE, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE); - blendIsPremultiplied = true; - } - } else { - if (blendIsPremultiplied) { - funcs->glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE); - blendIsPremultiplied = false; - } - } - if (flags.testFlag(QPlatformTextureList::StacksOnTop)) - blitTextureForWidget(textures, i, window, deviceWindowRect, d_ptr->blitter, offset, canUseSrgb); - } - - funcs->glDisable(GL_BLEND); - d_ptr->blitter->release(); - - d_ptr->context->swapBuffers(window); + \sa flush() + */ +QPlatformBackingStore::FlushResult QPlatformBackingStore::rhiFlush(QWindow *window, + qreal sourceDevicePixelRatio, + const QRegion ®ion, + const QPoint &offset, + QPlatformTextureList *textures, + bool translucentBackground) +{ + return d_ptr->compositor.flush(this, d_ptr->rhiSupport.rhi(), d_ptr->rhiSupport.swapChainForWindow(window), + window, sourceDevicePixelRatio, region, offset, textures, translucentBackground); } -#endif + /*! Implemented in subclasses to return the content of the backingstore as a QImage. - If QPlatformIntegration::RasterGLSurface is supported, either this function or + If composition via a 3D graphics API is supported, either this function or toTexture() must be implemented. + The returned image is only valid until the next operation (resize, paint, scroll, + or flush) on the backingstore. The caller must not store the return value between + calls, but instead call this function before each use, or make an explicit copy. + \sa toTexture() */ QImage QPlatformBackingStore::toImage() const { return QImage(); } -#ifndef QT_NO_OPENGL + /*! May be reimplemented in subclasses to return the content of the - backingstore as an OpenGL texture. \a dirtyRegion is the part of the + backingstore as an QRhiTexture. \a dirtyRegion is the part of the backingstore which may have changed since the last call to this function. The caller of this function must ensure that there is a current context. - The size of the texture is returned in \a textureSize. - The ownership of the texture is not transferred. The caller must not store the return value between calls, but instead call this function before each use. - The default implementation returns a cached texture if \a dirtyRegion is empty and - \a textureSize matches the backingstore size, otherwise it retrieves the content using - toImage() and performs a texture upload. This works only if the value of \a textureSize - is preserved between the calls to this function. + The default implementation returns a cached texture if \a dirtyRegion is + empty and the existing texture's size matches the backingstore size, + otherwise it retrieves the content using toImage() and performs a texture + upload. If the red and blue components have to swapped, \a flags will be set to include \c TextureSwizzle. This allows creating textures from images in formats like @@ -521,142 +257,12 @@ QImage QPlatformBackingStore::toImage() const \note \a dirtyRegion is relative to the backingstore so no adjustment is needed. */ -GLuint QPlatformBackingStore::toTexture(const QRegion &dirtyRegion, QSize *textureSize, TextureFlags *flags) const -{ - Q_ASSERT(textureSize); - Q_ASSERT(flags); - - QImage image = toImage(); - QSize imageSize = image.size(); - - QOpenGLContext *ctx = QOpenGLContext::currentContext(); - GLenum internalFormat = GL_RGBA; - GLuint pixelType = GL_UNSIGNED_BYTE; - - bool needsConversion = false; - *flags = { }; - switch (image.format()) { - case QImage::Format_ARGB32_Premultiplied: - *flags |= TexturePremultiplied; - Q_FALLTHROUGH(); - case QImage::Format_RGB32: - case QImage::Format_ARGB32: - *flags |= TextureSwizzle; - break; - case QImage::Format_RGBA8888_Premultiplied: - *flags |= TexturePremultiplied; - Q_FALLTHROUGH(); - case QImage::Format_RGBX8888: - case QImage::Format_RGBA8888: - break; - case QImage::Format_BGR30: - case QImage::Format_A2BGR30_Premultiplied: - if (!ctx->isOpenGLES() || ctx->format().majorVersion() >= 3) { - pixelType = GL_UNSIGNED_INT_2_10_10_10_REV; - internalFormat = GL_RGB10_A2; - *flags |= TexturePremultiplied; - } else { - needsConversion = true; - } - break; - case QImage::Format_RGB30: - case QImage::Format_A2RGB30_Premultiplied: - if (!ctx->isOpenGLES() || ctx->format().majorVersion() >= 3) { - pixelType = GL_UNSIGNED_INT_2_10_10_10_REV; - internalFormat = GL_RGB10_A2; - *flags |= TextureSwizzle | TexturePremultiplied; - } else { - needsConversion = true; - } - break; - default: - needsConversion = true; - break; - } - if (imageSize.isEmpty()) { - *textureSize = imageSize; - return 0; - } - - // Must rely on the input only, not d_ptr. - // With the default composeAndFlush() textureSize is &d_ptr->textureSize. - bool resized = *textureSize != imageSize; - if (dirtyRegion.isEmpty() && !resized) - return d_ptr->textureId; - - *textureSize = imageSize; - - 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); - funcs->glGenTextures(1, &d_ptr->textureId); - funcs->glBindTexture(GL_TEXTURE_2D, d_ptr->textureId); - if (!ctx->isOpenGLES() || ctx->format().majorVersion() >= 3) { - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0); - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0); - } - funcs->glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - funcs->glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - funcs->glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); - funcs->glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); - - funcs->glTexImage2D(GL_TEXTURE_2D, 0, internalFormat, imageSize.width(), imageSize.height(), 0, GL_RGBA, pixelType, - const_cast<uchar*>(image.constBits())); - } else { - funcs->glBindTexture(GL_TEXTURE_2D, d_ptr->textureId); - QRect imageRect = image.rect(); - QRect rect = dirtyRegion.boundingRect() & imageRect; - - 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() * bytesPerPixel); - } else { - // if the rect is wide enough it's cheaper to just - // extend it instead of doing an image copy - if (rect.width() >= imageRect.width() / 2) { - rect.setX(0); - rect.setWidth(imageRect.width()); - } - - // if the sub-rect is full-width we can pass the image data directly to - // OpenGL instead of copying, since there's no gap between scanlines - - if (rect.width() == imageRect.width()) { - funcs->glTexSubImage2D(GL_TEXTURE_2D, 0, 0, rect.y(), rect.width(), rect.height(), GL_RGBA, pixelType, - image.constScanLine(rect.y())); - } else { - funcs->glTexSubImage2D(GL_TEXTURE_2D, 0, rect.x(), rect.y(), rect.width(), rect.height(), GL_RGBA, pixelType, - image.copy(rect).constBits()); - } - } - } - - if (hasUnpackRowLength) - funcs->glPixelStorei(GL_UNPACK_ROW_LENGTH, 0); - - return d_ptr->textureId; +QRhiTexture *QPlatformBackingStore::toTexture(QRhiResourceUpdateBatch *resourceUpdates, + const QRegion &dirtyRegion, + TextureFlags *flags) const +{ + return d_ptr->compositor.toTexture(this, d_ptr->rhiSupport.rhi(), resourceUpdates, dirtyRegion, flags); } -#endif // QT_NO_OPENGL /*! \fn QPaintDevice* QPlatformBackingStore::paintDevice() @@ -750,4 +356,36 @@ bool QPlatformBackingStore::scroll(const QRegion &area, int dx, int dy) return false; } +void QPlatformBackingStore::setRhiConfig(const QPlatformBackingStoreRhiConfig &config) +{ + if (!config.isEnabled()) + return; + + d_ptr->rhiSupport.setConfig(config); + d_ptr->rhiSupport.setWindow(d_ptr->window); + d_ptr->rhiSupport.setFormat(d_ptr->window->format()); + d_ptr->rhiSupport.create(); +} + +QRhi *QPlatformBackingStore::rhi() const +{ + // Returning null is valid, and means this is not a QRhi-capable backingstore. + return d_ptr->rhiSupport.rhi(); +} + +void QPlatformBackingStore::graphicsDeviceReportedLost() +{ + if (!d_ptr->rhiSupport.rhi()) + return; + + qWarning("Rhi backingstore: graphics device lost, attempting to reinitialize"); + d_ptr->compositor.reset(); + d_ptr->rhiSupport.reset(); + d_ptr->rhiSupport.create(); + if (!d_ptr->rhiSupport.rhi()) + qWarning("Rhi backingstore: failed to reinitialize after losing the device"); +} + QT_END_NAMESPACE + +#include "moc_qplatformbackingstore.cpp" |