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Diffstat (limited to 'src/declarative/scenegraph/qsgdefaultdistancefieldglyphcache_p.h')
| -rw-r--r-- | src/declarative/scenegraph/qsgdefaultdistancefieldglyphcache_p.h | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/src/declarative/scenegraph/qsgdefaultdistancefieldglyphcache_p.h b/src/declarative/scenegraph/qsgdefaultdistancefieldglyphcache_p.h deleted file mode 100644 index 28860912c8..0000000000 --- a/src/declarative/scenegraph/qsgdefaultdistancefieldglyphcache_p.h +++ /dev/null @@ -1,165 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtDeclarative 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. -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QSGDEFAULTDISTANCEFIELDGLYPHCACHE_H -#define QSGDEFAULTDISTANCEFIELDGLYPHCACHE_H - -#include <QtGui/qopenglfunctions.h> -#include <private/qsgadaptationlayer_p.h> -#include <qopenglshaderprogram.h> -#include <QtGui/private/qopenglengineshadersource_p.h> - -QT_BEGIN_NAMESPACE - -class Q_DECLARATIVE_EXPORT QSGDefaultDistanceFieldGlyphCache : public QSGDistanceFieldGlyphCache -{ -public: - QSGDefaultDistanceFieldGlyphCache(QSGDistanceFieldGlyphCacheManager *man, QOpenGLContext *c, const QRawFont &font); - - void requestGlyphs(const QVector<glyph_t> &glyphs); - void storeGlyphs(const QHash<glyph_t, QImage> &glyphs); - void releaseGlyphs(const QVector<glyph_t> &glyphs); - - bool cacheIsFull() const { return m_textureData->currY >= maxTextureSize(); } - bool useWorkaroundBrokenFBOReadback() const; - int maxTextureSize() const; - -private: - void createTexture(int width, int height); - void resizeTexture(int width, int height); - - mutable int m_maxTextureSize; - - struct DistanceFieldTextureData : public QOpenGLSharedResource { - GLuint texture; - GLuint fbo; - QSize size; - QHash<glyph_t, quint32> glyphRefCount; - QSet<glyph_t> unusedGlyphs; - int currX; - int currY; - QImage image; - - QOpenGLShaderProgram *blitProgram; - GLfloat blitVertexCoordinateArray[8]; - GLfloat blitTextureCoordinateArray[8]; - - DistanceFieldTextureData(QOpenGLContext *ctx) - : QOpenGLSharedResource(ctx->shareGroup()) - , texture(0) - , fbo(0) - , currX(0) - , currY(0) - , blitProgram(0) - { - blitVertexCoordinateArray[0] = -1.0f; - blitVertexCoordinateArray[1] = -1.0f; - blitVertexCoordinateArray[2] = 1.0f; - blitVertexCoordinateArray[3] = -1.0f; - blitVertexCoordinateArray[4] = 1.0f; - blitVertexCoordinateArray[5] = 1.0f; - blitVertexCoordinateArray[6] = -1.0f; - blitVertexCoordinateArray[7] = 1.0f; - - blitTextureCoordinateArray[0] = 0.0f; - blitTextureCoordinateArray[1] = 0.0f; - blitTextureCoordinateArray[2] = 1.0f; - blitTextureCoordinateArray[3] = 0.0f; - blitTextureCoordinateArray[4] = 1.0f; - blitTextureCoordinateArray[5] = 1.0f; - blitTextureCoordinateArray[6] = 0.0f; - blitTextureCoordinateArray[7] = 1.0f; - } - - void invalidateResource() - { - texture = 0; - fbo = 0; - size = QSize(); - delete blitProgram; - blitProgram = 0; - } - - void freeResource(QOpenGLContext *ctx) - { - glDeleteTextures(1, &texture); - ctx->functions()->glDeleteFramebuffers(1, &fbo); - delete blitProgram; - blitProgram = 0; - } - - void createBlitProgram() - { - blitProgram = new QOpenGLShaderProgram; - { - QString source; - source.append(QLatin1String(qopenglslMainWithTexCoordsVertexShader)); - source.append(QLatin1String(qopenglslUntransformedPositionVertexShader)); - - QOpenGLShader *vertexShader = new QOpenGLShader(QOpenGLShader::Vertex, blitProgram); - vertexShader->compileSourceCode(source); - - blitProgram->addShader(vertexShader); - } - { - QString source; - source.append(QLatin1String(qopenglslMainFragmentShader)); - source.append(QLatin1String(qopenglslImageSrcFragmentShader)); - - QOpenGLShader *fragmentShader = new QOpenGLShader(QOpenGLShader::Fragment, blitProgram); - fragmentShader->compileSourceCode(source); - - blitProgram->addShader(fragmentShader); - } - blitProgram->bindAttributeLocation("vertexCoordsArray", QT_VERTEX_COORDS_ATTR); - blitProgram->bindAttributeLocation("textureCoordArray", QT_TEXTURE_COORDS_ATTR); - blitProgram->link(); - } - }; - - DistanceFieldTextureData *textureData(QOpenGLContext *c); - DistanceFieldTextureData *m_textureData; - static QHash<QString, QOpenGLMultiGroupSharedResource> m_textures_data; -}; - -QT_END_NAMESPACE - -#endif // QSGDEFAULTDISTANCEFIELDGLYPHCACHE_H |