diff options
Diffstat (limited to 'src/gui/opengl/qopengltexturecache.cpp')
| -rw-r--r-- | src/gui/opengl/qopengltexturecache.cpp | 198 |
1 files changed, 0 insertions, 198 deletions
diff --git a/src/gui/opengl/qopengltexturecache.cpp b/src/gui/opengl/qopengltexturecache.cpp deleted file mode 100644 index ef07dbe109..0000000000 --- a/src/gui/opengl/qopengltexturecache.cpp +++ /dev/null @@ -1,198 +0,0 @@ -/**************************************************************************** -** -** 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. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qopengltexturecache_p.h" -#include "qopengltextureuploader_p.h" -#include <qmath.h> -#include <qopenglfunctions.h> -#include <private/qimagepixmapcleanuphooks_p.h> -#include <qpa/qplatformpixmap.h> - -QT_BEGIN_NAMESPACE - -class QOpenGLTextureCacheWrapper -{ -public: - QOpenGLTextureCacheWrapper() - { - QImagePixmapCleanupHooks::instance()->addPlatformPixmapModificationHook(cleanupTexturesForPixmapData); - QImagePixmapCleanupHooks::instance()->addPlatformPixmapDestructionHook(cleanupTexturesForPixmapData); - QImagePixmapCleanupHooks::instance()->addImageHook(cleanupTexturesForCacheKey); - } - - ~QOpenGLTextureCacheWrapper() - { - QImagePixmapCleanupHooks::instance()->removePlatformPixmapModificationHook(cleanupTexturesForPixmapData); - QImagePixmapCleanupHooks::instance()->removePlatformPixmapDestructionHook(cleanupTexturesForPixmapData); - QImagePixmapCleanupHooks::instance()->removeImageHook(cleanupTexturesForCacheKey); - } - - QOpenGLTextureCache *cacheForContext(QOpenGLContext *context) { - QMutexLocker lock(&m_mutex); - return m_resource.value<QOpenGLTextureCache>(context); - } - - static void cleanupTexturesForCacheKey(qint64 key); - static void cleanupTexturesForPixmapData(QPlatformPixmap *pmd); - -private: - QOpenGLMultiGroupSharedResource m_resource; - QMutex m_mutex; -}; - -Q_GLOBAL_STATIC(QOpenGLTextureCacheWrapper, qt_texture_caches) - -QOpenGLTextureCache *QOpenGLTextureCache::cacheForContext(QOpenGLContext *context) -{ - return qt_texture_caches()->cacheForContext(context); -} - -void QOpenGLTextureCacheWrapper::cleanupTexturesForCacheKey(qint64 key) -{ - QList<QOpenGLSharedResource *> resources = qt_texture_caches()->m_resource.resources(); - for (QList<QOpenGLSharedResource *>::iterator it = resources.begin(); it != resources.end(); ++it) - static_cast<QOpenGLTextureCache *>(*it)->invalidate(key); -} - -void QOpenGLTextureCacheWrapper::cleanupTexturesForPixmapData(QPlatformPixmap *pmd) -{ - cleanupTexturesForCacheKey(pmd->cacheKey()); -} - -QOpenGLTextureCache::QOpenGLTextureCache(QOpenGLContext *ctx) - : QOpenGLSharedResource(ctx->shareGroup()) - , m_cache(256 * 1024) // 256 MB cache -{ -} - -QOpenGLTextureCache::~QOpenGLTextureCache() -{ -} - -GLuint QOpenGLTextureCache::bindTexture(QOpenGLContext *context, const QPixmap &pixmap, QOpenGLTextureUploader::BindOptions options) -{ - if (pixmap.isNull()) - return 0; - QMutexLocker locker(&m_mutex); - qint64 key = pixmap.cacheKey(); - - // A QPainter is active on the image - take the safe route and replace the texture. - if (!pixmap.paintingActive()) { - QOpenGLCachedTexture *entry = m_cache.object(key); - if (entry && entry->options() == options) { - context->functions()->glBindTexture(GL_TEXTURE_2D, entry->id()); - return entry->id(); - } - } - - GLuint id = bindTexture(context, key, pixmap.toImage(), options); - if (id > 0) - QImagePixmapCleanupHooks::enableCleanupHooks(pixmap); - - return id; -} - -GLuint QOpenGLTextureCache::bindTexture(QOpenGLContext *context, const QImage &image, QOpenGLTextureUploader::BindOptions options) -{ - if (image.isNull()) - return 0; - QMutexLocker locker(&m_mutex); - qint64 key = image.cacheKey(); - - // A QPainter is active on the image - take the safe route and replace the texture. - if (!image.paintingActive()) { - QOpenGLCachedTexture *entry = m_cache.object(key); - if (entry && entry->options() == options) { - context->functions()->glBindTexture(GL_TEXTURE_2D, entry->id()); - return entry->id(); - } - } - - QImage img = image; - if (!context->functions()->hasOpenGLFeature(QOpenGLFunctions::NPOTTextures)) - options |= QOpenGLTextureUploader::PowerOfTwoBindOption; - - GLuint id = bindTexture(context, key, img, options); - if (id > 0) - QImagePixmapCleanupHooks::enableCleanupHooks(image); - - return id; -} - -GLuint QOpenGLTextureCache::bindTexture(QOpenGLContext *context, qint64 key, const QImage &image, QOpenGLTextureUploader::BindOptions options) -{ - GLuint id; - QOpenGLFunctions *funcs = context->functions(); - funcs->glGenTextures(1, &id); - funcs->glBindTexture(GL_TEXTURE_2D, id); - - int cost = QOpenGLTextureUploader::textureImage(GL_TEXTURE_2D, image, options); - - m_cache.insert(key, new QOpenGLCachedTexture(id, options, context), cost / 1024); - - return id; -} - -void QOpenGLTextureCache::invalidate(qint64 key) -{ - QMutexLocker locker(&m_mutex); - m_cache.remove(key); -} - -void QOpenGLTextureCache::invalidateResource() -{ - m_cache.clear(); -} - -void QOpenGLTextureCache::freeResource(QOpenGLContext *) -{ - Q_ASSERT(false); // the texture cache lives until the context group disappears -} - -static void freeTexture(QOpenGLFunctions *funcs, GLuint id) -{ - funcs->glDeleteTextures(1, &id); -} - -QOpenGLCachedTexture::QOpenGLCachedTexture(GLuint id, QOpenGLTextureUploader::BindOptions options, QOpenGLContext *context) : m_options(options) -{ - m_resource = new QOpenGLSharedResourceGuard(context, id, freeTexture); -} - -QT_END_NAMESPACE |