diff options
Diffstat (limited to 'src/opengl/qpixmapdata_poolgl.cpp')
| -rw-r--r-- | src/opengl/qpixmapdata_poolgl.cpp | 934 |
1 files changed, 0 insertions, 934 deletions
diff --git a/src/opengl/qpixmapdata_poolgl.cpp b/src/opengl/qpixmapdata_poolgl.cpp deleted file mode 100644 index 5dd7b09c64..0000000000 --- a/src/opengl/qpixmapdata_poolgl.cpp +++ /dev/null @@ -1,934 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtOpenGL module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** This file may be used under the terms of the GNU Lesser General Public -** License version 2.1 as published by the Free Software Foundation and -** appearing in the file LICENSE.LGPL included in the packaging of this -** file. Please review the following information to ensure the GNU Lesser -** General Public License version 2.1 requirements will be met: -** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** In addition, as a special exception, Nokia gives you certain additional -** rights. These rights are described in the Nokia Qt LGPL Exception -** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU General -** Public License version 3.0 as published by the Free Software Foundation -** and appearing in the file LICENSE.GPL included in the packaging of this -** file. Please review the following information to ensure the GNU General -** Public License version 3.0 requirements will be met: -** http://www.gnu.org/copyleft/gpl.html. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qpixmap.h" -#include "qglframebufferobject.h" - -#include <private/qpaintengine_raster_p.h> - -#include "qpixmapdata_gl_p.h" - -#include <private/qgl_p.h> -#include <private/qdrawhelper_p.h> -#include <private/qimage_p.h> -#include <private/qnativeimagehandleprovider_p.h> -#include <private/qfont_p.h> - -#include <private/qpaintengineex_opengl2_p.h> - -#include <qdesktopwidget.h> -#include <qfile.h> -#include <qimagereader.h> -#include <qbuffer.h> - -#include "qgltexturepool_p.h" - -QT_BEGIN_NAMESPACE - -Q_OPENGL_EXPORT extern QGLWidget* qt_gl_share_widget(); - -static inline int areaDiff(const QSize &size, const QGLFramebufferObject *fbo) -{ - return qAbs(size.width() * size.height() - fbo->width() * fbo->height()); -} - -extern int qt_next_power_of_two(int v); - -static inline QSize maybeRoundToNextPowerOfTwo(const QSize &sz) -{ -#ifdef QT_OPENGL_ES_2 - QSize rounded(qt_next_power_of_two(sz.width()), qt_next_power_of_two(sz.height())); - if (rounded.width() * rounded.height() < 1.20 * sz.width() * sz.height()) - return rounded; -#endif - return sz; -} - - -QGLFramebufferObject *QGLFramebufferObjectPool::acquire(const QSize &requestSize, const QGLFramebufferObjectFormat &requestFormat, bool strictSize) -{ - QGLFramebufferObject *chosen = 0; - QGLFramebufferObject *candidate = 0; - for (int i = 0; !chosen && i < m_fbos.size(); ++i) { - QGLFramebufferObject *fbo = m_fbos.at(i); - - if (strictSize) { - if (fbo->size() == requestSize && fbo->format() == requestFormat) { - chosen = fbo; - break; - } else { - continue; - } - } - - if (fbo->format() == requestFormat) { - // choose the fbo with a matching format and the closest size - if (!candidate || areaDiff(requestSize, candidate) > areaDiff(requestSize, fbo)) - candidate = fbo; - } - - if (candidate) { - m_fbos.removeOne(candidate); - - const QSize fboSize = candidate->size(); - QSize sz = fboSize; - - if (sz.width() < requestSize.width()) - sz.setWidth(qMax(requestSize.width(), qRound(sz.width() * 1.5))); - if (sz.height() < requestSize.height()) - sz.setHeight(qMax(requestSize.height(), qRound(sz.height() * 1.5))); - - // wasting too much space? - if (sz.width() * sz.height() > requestSize.width() * requestSize.height() * 4) - sz = requestSize; - - if (sz != fboSize) { - delete candidate; - candidate = new QGLFramebufferObject(maybeRoundToNextPowerOfTwo(sz), requestFormat); - } - - chosen = candidate; - } - } - - if (!chosen) { - if (strictSize) - chosen = new QGLFramebufferObject(requestSize, requestFormat); - else - chosen = new QGLFramebufferObject(maybeRoundToNextPowerOfTwo(requestSize), requestFormat); - } - - if (!chosen->isValid()) { - delete chosen; - chosen = 0; - } - - return chosen; -} - -void QGLFramebufferObjectPool::release(QGLFramebufferObject *fbo) -{ - if (fbo) - m_fbos << fbo; -} - - -QPaintEngine* QGLPixmapGLPaintDevice::paintEngine() const -{ - return data->paintEngine(); -} - -void QGLPixmapGLPaintDevice::beginPaint() -{ - if (!data->isValid()) - return; - - // QGLPaintDevice::beginPaint will store the current binding and replace - // it with m_thisFBO: - m_thisFBO = data->m_renderFbo->handle(); - QGLPaintDevice::beginPaint(); - - Q_ASSERT(data->paintEngine()->type() == QPaintEngine::OpenGL2); - - // QPixmap::fill() is deferred until now, where we actually need to do the fill: - if (data->needsFill()) { - const QColor &c = data->fillColor(); - float alpha = c.alphaF(); - glDisable(GL_SCISSOR_TEST); - glClearColor(c.redF() * alpha, c.greenF() * alpha, c.blueF() * alpha, alpha); - glClear(GL_COLOR_BUFFER_BIT); - } - else if (!data->isUninitialized()) { - // If the pixmap (GL Texture) has valid content (it has been - // uploaded from an image or rendered into before), we need to - // copy it from the texture to the render FBO. - - glDisable(GL_DEPTH_TEST); - glDisable(GL_SCISSOR_TEST); - glDisable(GL_BLEND); - -#if !defined(QT_OPENGL_ES_2) - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - glOrtho(0, data->width(), data->height(), 0, -999999, 999999); -#endif - - glViewport(0, 0, data->width(), data->height()); - - // Pass false to bind so it doesn't copy the FBO into the texture! - context()->drawTexture(QRect(0, 0, data->width(), data->height()), data->bind(false)); - } -} - -void QGLPixmapGLPaintDevice::endPaint() -{ - if (!data->isValid()) - return; - - data->copyBackFromRenderFbo(false); - - // Base's endPaint will restore the previous FBO binding - QGLPaintDevice::endPaint(); - - qgl_fbo_pool()->release(data->m_renderFbo); - data->m_renderFbo = 0; -} - -QGLContext* QGLPixmapGLPaintDevice::context() const -{ - data->ensureCreated(); - return data->m_ctx; -} - -QSize QGLPixmapGLPaintDevice::size() const -{ - return data->size(); -} - -bool QGLPixmapGLPaintDevice::alphaRequested() const -{ - return data->m_hasAlpha; -} - -void QGLPixmapGLPaintDevice::setPixmapData(QGLPixmapData* d) -{ - data = d; -} - -int qt_gl_pixmap_serial = 0; - -QGLPixmapData::QGLPixmapData(PixelType type) - : QPixmapData(type, OpenGLClass) - , m_renderFbo(0) - , m_engine(0) - , m_ctx(0) - , nativeImageHandleProvider(0) - , nativeImageHandle(0) - , m_dirty(false) - , m_hasFillColor(false) - , m_hasAlpha(false) - , inLRU(false) - , failedToAlloc(false) - , inTexturePool(false) -{ - setSerialNumber(++qt_gl_pixmap_serial); - m_glDevice.setPixmapData(this); - - qt_gl_register_pixmap(this); -} - -QGLPixmapData::~QGLPixmapData() -{ - delete m_engine; - - destroyTexture(); - qt_gl_unregister_pixmap(this); -} - -void QGLPixmapData::destroyTexture() -{ - if (inTexturePool) { - QGLTexturePool *pool = QGLTexturePool::instance(); - if (m_texture.id) - pool->releaseTexture(this, m_texture.id); - } else { - if (m_texture.id) { - QGLWidget *shareWidget = qt_gl_share_widget(); - if (shareWidget) { - QGLShareContextScope ctx(shareWidget->context()); - glDeleteTextures(1, &m_texture.id); - } - } - } - m_texture.id = 0; - inTexturePool = false; - - releaseNativeImageHandle(); -} - -QPixmapData *QGLPixmapData::createCompatiblePixmapData() const -{ - return new QGLPixmapData(pixelType()); -} - -bool QGLPixmapData::isValid() const -{ - return w > 0 && h > 0; -} - -bool QGLPixmapData::isValidContext(const QGLContext *ctx) const -{ - if (ctx == m_ctx) - return true; - - const QGLContext *share_ctx = qt_gl_share_widget()->context(); - return ctx == share_ctx || QGLContext::areSharing(ctx, share_ctx); -} - -void QGLPixmapData::resize(int width, int height) -{ - if (width == w && height == h) - return; - - if (width <= 0 || height <= 0) { - width = 0; - height = 0; - } - - w = width; - h = height; - is_null = (w <= 0 || h <= 0); - d = pixelType() == QPixmapData::PixmapType ? 32 : 1; - - destroyTexture(); - - m_source = QVolatileImage(); - m_dirty = isValid(); - setSerialNumber(++qt_gl_pixmap_serial); -} - -void QGLPixmapData::ensureCreated() const -{ - if (!m_dirty) - return; - - m_dirty = false; - - if (nativeImageHandleProvider && !nativeImageHandle) - const_cast<QGLPixmapData *>(this)->createFromNativeImageHandleProvider(); - - QGLShareContextScope ctx(qt_gl_share_widget()->context()); - m_ctx = ctx; - - const GLenum internal_format = m_hasAlpha ? GL_RGBA : GL_RGB; -#ifdef QT_OPENGL_ES_2 - const GLenum external_format = internal_format; -#else - const GLenum external_format = qt_gl_preferredTextureFormat(); -#endif - const GLenum target = GL_TEXTURE_2D; - - GLenum type = GL_UNSIGNED_BYTE; - // Avoid conversion when pixmap is created from CFbsBitmap of EColor64K. - if (!m_source.isNull() && m_source.format() == QImage::Format_RGB16) - type = GL_UNSIGNED_SHORT_5_6_5; - - m_texture.options &= ~QGLContext::MemoryManagedBindOption; - - if (!m_texture.id) { - m_texture.id = QGLTexturePool::instance()->createTextureForPixmap( - target, - 0, internal_format, - w, h, - external_format, - type, - const_cast<QGLPixmapData*>(this)); - if (!m_texture.id) { - failedToAlloc = true; - return; - } - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); - glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); - - inTexturePool = true; - } else if (inTexturePool) { - glBindTexture(target, m_texture.id); - QGLTexturePool::instance()->useTexture(const_cast<QGLPixmapData*>(this)); - } - - if (!m_source.isNull() && m_texture.id) { - if (external_format == GL_RGB) { - m_source.beginDataAccess(); - QImage tx; - if (type == GL_UNSIGNED_BYTE) - tx = m_source.imageRef().convertToFormat(QImage::Format_RGB888).mirrored(false, true); - else if (type == GL_UNSIGNED_SHORT_5_6_5) - tx = m_source.imageRef().mirrored(false, true); - m_source.endDataAccess(true); - - glBindTexture(target, m_texture.id); - if (!tx.isNull()) - glTexSubImage2D(target, 0, 0, 0, w, h, external_format, - type, tx.constBits()); - else - qWarning("QGLPixmapData: Failed to create GL_RGB image of size %dx%d", w, h); - } else { - // do byte swizzling ARGB -> RGBA - m_source.beginDataAccess(); - const QImage tx = ctx->d_func()->convertToGLFormat(m_source.imageRef(), true, external_format); - m_source.endDataAccess(true); - glBindTexture(target, m_texture.id); - if (!tx.isNull()) - glTexSubImage2D(target, 0, 0, 0, w, h, external_format, - type, tx.constBits()); - else - qWarning("QGLPixmapData: Failed to create GL_RGBA image of size %dx%d", w, h); - } - - if (useFramebufferObjects()) - m_source = QVolatileImage(); - } -} - - -void QGLPixmapData::fromImage(const QImage &image, - Qt::ImageConversionFlags flags) -{ - QImage img = image; - createPixmapForImage(img, flags, false); -} - -void QGLPixmapData::fromImageReader(QImageReader *imageReader, - Qt::ImageConversionFlags flags) -{ - QImage image = imageReader->read(); - if (image.isNull()) - return; - - createPixmapForImage(image, flags, true); -} - -bool QGLPixmapData::fromFile(const QString &filename, const char *format, - Qt::ImageConversionFlags flags) -{ - if (pixelType() == QPixmapData::BitmapType) - return QPixmapData::fromFile(filename, format, flags); - QFile file(filename); - if (file.open(QIODevice::ReadOnly)) { - QByteArray data = file.peek(64); - bool alpha; - if (m_texture.canBindCompressedTexture - (data.constData(), data.size(), format, &alpha)) { - resize(0, 0); - data = file.readAll(); - file.close(); - QGLShareContextScope ctx(qt_gl_share_widget()->context()); - QSize size = m_texture.bindCompressedTexture - (data.constData(), data.size(), format); - if (!size.isEmpty()) { - w = size.width(); - h = size.height(); - is_null = false; - d = 32; - m_hasAlpha = alpha; - m_source = QVolatileImage(); - m_dirty = isValid(); - return true; - } - return false; - } - } - - QImage image = QImageReader(filename, format).read(); - if (image.isNull()) - return false; - - createPixmapForImage(image, flags, true); - - return !isNull(); -} - -bool QGLPixmapData::fromData(const uchar *buffer, uint len, const char *format, - Qt::ImageConversionFlags flags) -{ - bool alpha; - const char *buf = reinterpret_cast<const char *>(buffer); - if (m_texture.canBindCompressedTexture(buf, int(len), format, &alpha)) { - resize(0, 0); - QGLShareContextScope ctx(qt_gl_share_widget()->context()); - QSize size = m_texture.bindCompressedTexture(buf, int(len), format); - if (!size.isEmpty()) { - w = size.width(); - h = size.height(); - is_null = false; - d = 32; - m_hasAlpha = alpha; - m_source = QVolatileImage(); - m_dirty = isValid(); - return true; - } - } - - QByteArray a = QByteArray::fromRawData(reinterpret_cast<const char *>(buffer), len); - QBuffer b(&a); - b.open(QIODevice::ReadOnly); - QImage image = QImageReader(&b, format).read(); - if (image.isNull()) - return false; - - createPixmapForImage(image, flags, true); - - return !isNull(); -} - -QImage::Format QGLPixmapData::idealFormat(QImage &image, Qt::ImageConversionFlags flags) -{ - QImage::Format format = QImage::Format_RGB32; - if (qApp->desktop()->depth() == 16) - format = QImage::Format_RGB16; - - if (image.hasAlphaChannel() - && ((flags & Qt::NoOpaqueDetection) - || const_cast<QImage &>(image).data_ptr()->checkForAlphaPixels())) - format = QImage::Format_ARGB32_Premultiplied; - - return format; -} - -void QGLPixmapData::createPixmapForImage(QImage &image, Qt::ImageConversionFlags flags, bool inPlace) -{ - if (image.size() == QSize(w, h)) - setSerialNumber(++qt_gl_pixmap_serial); - - resize(image.width(), image.height()); - - if (pixelType() == BitmapType) { - QImage convertedImage = image.convertToFormat(QImage::Format_MonoLSB); - if (image.format() == QImage::Format_MonoLSB) - convertedImage.detach(); - - m_source = QVolatileImage(convertedImage); - - } else { - QImage::Format format = idealFormat(image, flags); - - if (inPlace && image.data_ptr()->convertInPlace(format, flags)) { - m_source = QVolatileImage(image); - } else { - QImage convertedImage = image.convertToFormat(format); - - // convertToFormat won't detach the image if format stays the same. - if (image.format() == format) - convertedImage.detach(); - - m_source = QVolatileImage(convertedImage); - } - } - - m_dirty = true; - m_hasFillColor = false; - - m_hasAlpha = m_source.hasAlphaChannel(); - w = image.width(); - h = image.height(); - is_null = (w <= 0 || h <= 0); - d = m_source.depth(); - - destroyTexture(); -} - -bool QGLPixmapData::scroll(int dx, int dy, const QRect &rect) -{ - Q_UNUSED(dx); - Q_UNUSED(dy); - Q_UNUSED(rect); - return false; -} - -void QGLPixmapData::copy(const QPixmapData *data, const QRect &rect) -{ - if (data->classId() != QPixmapData::OpenGLClass || !static_cast<const QGLPixmapData *>(data)->useFramebufferObjects()) { - QPixmapData::copy(data, rect); - return; - } - - const QGLPixmapData *other = static_cast<const QGLPixmapData *>(data); - if (other->m_renderFbo) { - QGLShareContextScope ctx(qt_gl_share_widget()->context()); - - resize(rect.width(), rect.height()); - m_hasAlpha = other->m_hasAlpha; - ensureCreated(); - - if (!ctx->d_ptr->fbo) - glGenFramebuffers(1, &ctx->d_ptr->fbo); - - glBindFramebuffer(GL_DRAW_FRAMEBUFFER_EXT, ctx->d_ptr->fbo); - glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, - GL_TEXTURE_2D, m_texture.id, 0); - - if (!other->m_renderFbo->isBound()) - glBindFramebuffer(GL_READ_FRAMEBUFFER_EXT, other->m_renderFbo->handle()); - - glDisable(GL_SCISSOR_TEST); - if (ctx->d_ptr->active_engine && ctx->d_ptr->active_engine->type() == QPaintEngine::OpenGL2) - static_cast<QGL2PaintEngineEx *>(ctx->d_ptr->active_engine)->invalidateState(); - - glBlitFramebufferEXT(rect.x(), rect.y(), rect.x() + rect.width(), rect.y() + rect.height(), - 0, 0, w, h, - GL_COLOR_BUFFER_BIT, - GL_NEAREST); - - glBindFramebuffer(GL_FRAMEBUFFER_EXT, ctx->d_ptr->current_fbo); - } else { - QPixmapData::copy(data, rect); - } -} - -void QGLPixmapData::fill(const QColor &color) -{ - if (!isValid()) - return; - - bool hasAlpha = color.alpha() != 255; - if (hasAlpha && !m_hasAlpha) { - if (m_texture.id) { - destroyTexture(); - m_dirty = true; - } - m_hasAlpha = color.alpha() != 255; - } - - if (useFramebufferObjects()) { - m_source = QVolatileImage(); - m_hasFillColor = true; - m_fillColor = color; - } else { - forceToImage(); - - if (m_source.depth() == 32) { - m_source.fill(PREMUL(color.rgba())); - - } else if (m_source.depth() == 1) { - if (color == Qt::color1) - m_source.fill(1); - else - m_source.fill(0); - } - } -} - -bool QGLPixmapData::hasAlphaChannel() const -{ - return m_hasAlpha; -} - -QImage QGLPixmapData::fillImage(const QColor &color) const -{ - QImage img; - if (pixelType() == BitmapType) { - img = QImage(w, h, QImage::Format_MonoLSB); - - img.setColorCount(2); - img.setColor(0, QColor(Qt::color0).rgba()); - img.setColor(1, QColor(Qt::color1).rgba()); - - if (color == Qt::color1) - img.fill(1); - else - img.fill(0); - } else { - img = QImage(w, h, - m_hasAlpha - ? QImage::Format_ARGB32_Premultiplied - : QImage::Format_RGB32); - img.fill(PREMUL(color.rgba())); - } - return img; -} - -extern QImage qt_gl_read_texture(const QSize &size, bool alpha_format, bool include_alpha); - -QImage QGLPixmapData::toImage() const -{ - if (!isValid()) - return QImage(); - - if (m_renderFbo) { - copyBackFromRenderFbo(true); - } else if (!m_source.isNull()) { - // QVolatileImage::toImage() will make a copy always so no check - // for active painting is needed. - QImage img = m_source.toImage(); - if (img.format() == QImage::Format_MonoLSB) { - img.setColorCount(2); - img.setColor(0, QColor(Qt::color0).rgba()); - img.setColor(1, QColor(Qt::color1).rgba()); - } - return img; - } else if (m_dirty || m_hasFillColor) { - return fillImage(m_fillColor); - } else { - ensureCreated(); - } - - QGLShareContextScope ctx(qt_gl_share_widget()->context()); - glBindTexture(GL_TEXTURE_2D, m_texture.id); - return qt_gl_read_texture(QSize(w, h), true, true); -} - -struct TextureBuffer -{ - QGLFramebufferObject *fbo; - QGL2PaintEngineEx *engine; -}; - -Q_GLOBAL_STATIC(QGLFramebufferObjectPool, _qgl_fbo_pool) -QGLFramebufferObjectPool* qgl_fbo_pool() -{ - return _qgl_fbo_pool(); -} - -void QGLPixmapData::copyBackFromRenderFbo(bool keepCurrentFboBound) const -{ - if (!isValid()) - return; - - m_hasFillColor = false; - - const QGLContext *share_ctx = qt_gl_share_widget()->context(); - QGLShareContextScope ctx(share_ctx); - - ensureCreated(); - - if (!ctx->d_ptr->fbo) - glGenFramebuffers(1, &ctx->d_ptr->fbo); - - glBindFramebuffer(GL_DRAW_FRAMEBUFFER_EXT, ctx->d_ptr->fbo); - glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, - GL_TEXTURE_2D, m_texture.id, 0); - - const int x0 = 0; - const int x1 = w; - const int y0 = 0; - const int y1 = h; - - if (!m_renderFbo->isBound()) - glBindFramebuffer(GL_READ_FRAMEBUFFER_EXT, m_renderFbo->handle()); - - glDisable(GL_SCISSOR_TEST); - - glBlitFramebufferEXT(x0, y0, x1, y1, - x0, y0, x1, y1, - GL_COLOR_BUFFER_BIT, - GL_NEAREST); - - if (keepCurrentFboBound) { - glBindFramebuffer(GL_FRAMEBUFFER_EXT, ctx->d_ptr->current_fbo); - } else { - glBindFramebuffer(GL_DRAW_FRAMEBUFFER_EXT, m_renderFbo->handle()); - ctx->d_ptr->current_fbo = m_renderFbo->handle(); - } -} - -bool QGLPixmapData::useFramebufferObjects() const -{ -#ifdef Q_OS_SYMBIAN - // We don't want to use FBOs on Symbian - return false; -#else - return QGLFramebufferObject::hasOpenGLFramebufferObjects() - && QGLFramebufferObject::hasOpenGLFramebufferBlit() - && qt_gl_preferGL2Engine() - && (w * h > 32*32); // avoid overhead of FBOs for small pixmaps -#endif -} - -QPaintEngine* QGLPixmapData::paintEngine() const -{ - if (!isValid()) - return 0; - - if (m_renderFbo) - return m_engine; - - if (useFramebufferObjects()) { - extern QGLWidget* qt_gl_share_widget(); - - if (!QGLContext::currentContext()) - qt_gl_share_widget()->makeCurrent(); - QGLShareContextScope ctx(qt_gl_share_widget()->context()); - - QGLFramebufferObjectFormat format; - format.setAttachment(QGLFramebufferObject::CombinedDepthStencil); - format.setSamples(4); - format.setInternalTextureFormat(GLenum(m_hasAlpha ? GL_RGBA : GL_RGB)); - - m_renderFbo = qgl_fbo_pool()->acquire(size(), format); - - if (m_renderFbo) { - if (!m_engine) - m_engine = new QGL2PaintEngineEx; - return m_engine; - } - - qWarning() << "Failed to create pixmap texture buffer of size " << size() << ", falling back to raster paint engine"; - } - - // If the application wants to paint into the QPixmap, we first - // force it to QImage format and then paint into that. - // This is simpler than juggling multiple GL contexts. - const_cast<QGLPixmapData *>(this)->forceToImage(); - - if (m_hasFillColor) { - m_source.fill(PREMUL(m_fillColor.rgba())); - m_hasFillColor = false; - } - return m_source.paintEngine(); -} - -extern QRgb qt_gl_convertToGLFormat(QRgb src_pixel, GLenum texture_format); - -// If copyBack is true, bind will copy the contents of the render -// FBO to the texture (which is not bound to the texture, as it's -// a multisample FBO). -GLuint QGLPixmapData::bind(bool copyBack) const -{ - if (m_renderFbo && copyBack) { - copyBackFromRenderFbo(true); - } else { - ensureCreated(); - } - - GLuint id = m_texture.id; - glBindTexture(GL_TEXTURE_2D, id); - - if (m_hasFillColor) { - if (!useFramebufferObjects()) { - m_source = QVolatileImage(w, h, QImage::Format_ARGB32_Premultiplied); - m_source.fill(PREMUL(m_fillColor.rgba())); - } - - m_hasFillColor = false; - - GLenum format = qt_gl_preferredTextureFormat(); - QImage tx(w, h, QImage::Format_ARGB32_Premultiplied); - tx.fill(qt_gl_convertToGLFormat(m_fillColor.rgba(), format)); - glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, w, h, format, GL_UNSIGNED_BYTE, tx.constBits()); - } - - return id; -} - -QGLTexture* QGLPixmapData::texture() const -{ - return &m_texture; -} - -void QGLPixmapData::detachTextureFromPool() -{ - if (inTexturePool) { - QGLTexturePool::instance()->detachTexture(this); - inTexturePool = false; - } -} - -void QGLPixmapData::hibernate() -{ - // If the image was imported (e.g, from an SgImage under Symbian), then - // skip the hibernation, there is no sense in copying it back to main - // memory because the data is most likely shared between several processes. - bool skipHibernate = (m_texture.id && m_source.isNull()); -#if defined(Q_OS_SYMBIAN) - // However we have to proceed normally if the image was retrieved via - // a handle provider. - skipHibernate &= !nativeImageHandleProvider; -#endif - if (skipHibernate) - return; - - forceToImage(); - destroyTexture(); -} - -void QGLPixmapData::reclaimTexture() -{ - if (!inTexturePool) - return; - forceToImage(); - destroyTexture(); -} - -int QGLPixmapData::metric(QPaintDevice::PaintDeviceMetric metric) const -{ - if (w == 0) - return 0; - - switch (metric) { - case QPaintDevice::PdmWidth: - return w; - case QPaintDevice::PdmHeight: - return h; - case QPaintDevice::PdmNumColors: - return 0; - case QPaintDevice::PdmDepth: - return d; - case QPaintDevice::PdmWidthMM: - return qRound(w * 25.4 / qt_defaultDpiX()); - case QPaintDevice::PdmHeightMM: - return qRound(h * 25.4 / qt_defaultDpiY()); - case QPaintDevice::PdmDpiX: - case QPaintDevice::PdmPhysicalDpiX: - return qt_defaultDpiX(); - case QPaintDevice::PdmDpiY: - case QPaintDevice::PdmPhysicalDpiY: - return qt_defaultDpiY(); - default: - qWarning("QGLPixmapData::metric(): Invalid metric"); - return 0; - } -} - -// Force the pixmap data to be backed by some valid data. -void QGLPixmapData::forceToImage() -{ - if (!isValid()) - return; - - if (m_source.isNull()) { - QImage::Format format = QImage::Format_ARGB32_Premultiplied; - if (pixelType() == BitmapType) - format = QImage::Format_MonoLSB; - m_source = QVolatileImage(w, h, format); - } - - m_dirty = true; -} - -QGLPaintDevice *QGLPixmapData::glDevice() const -{ - return &m_glDevice; -} - -QT_END_NAMESPACE |