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Diffstat (limited to 'src/declarative/opengl/gltexture.cpp')
-rw-r--r-- | src/declarative/opengl/gltexture.cpp | 384 |
1 files changed, 0 insertions, 384 deletions
diff --git a/src/declarative/opengl/gltexture.cpp b/src/declarative/opengl/gltexture.cpp deleted file mode 100644 index c2a02df..0000000 --- a/src/declarative/opengl/gltexture.cpp +++ /dev/null @@ -1,384 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). -** Contact: Qt Software Information (qt-info@nokia.com) -** -** This file is part of the QtDeclarative module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** No Commercial Usage -** This file contains pre-release code and may not be distributed. -** You may use this file in accordance with the terms and conditions -** contained in the either Technology Preview License Agreement or the -** Beta Release License Agreement. -** -** GNU Lesser General Public License Usage -** Alternatively, 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 1.0, 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. -** -** If you are unsure which license is appropriate for your use, please -** contact the sales department at qt-sales@nokia.com. -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "gltexture.h" -#include <QImage> - - -QT_BEGIN_NAMESPACE -/*! - \internal - \class GLTexture - \brief The GLTexture class simplifies the use of OpenGL textures. -*/ - -// Copied from QGLWidget::convertToGLFormat -static QImage QGLWidget_convertToGLFormat(const QImage& img) -{ - QImage res = img.convertToFormat(QImage::Format_ARGB32); - res = res.mirrored(); - - if (QSysInfo::ByteOrder == QSysInfo::BigEndian) { - // Qt has ARGB; OpenGL wants RGBA - for (int i=0; i < res.height(); i++) { - uint *p = (uint*)res.scanLine(i); - uint *end = p + res.width(); - while (p < end) { - *p = (*p << 8) | ((*p >> 24) & 0xFF); - p++; - } - } - } - else { - // Qt has ARGB; OpenGL wants ABGR (i.e. RGBA backwards) - res = res.rgbSwapped(); - } - return res; -} -class GLTexturePrivate -{ -public: - GLTexturePrivate(GLTexture *_q) - : q(_q), texture(0), width(0), height(0), - horizWrap(GLTexture::Repeat), vertWrap(GLTexture::Repeat), - minFilter(GLTexture::Linear), magFilter(GLTexture::Linear), - glWidth(1.), glHeight(1.) - { - } - - GLTexture *q; - GLuint texture; - int width; - int height; - GLTexture::WrapMode horizWrap; - GLTexture::WrapMode vertWrap; - GLTexture::FilterMode minFilter; - GLTexture::FilterMode magFilter; - - qreal glWidth; - qreal glHeight; - QSize glSize; - - void genTexture(); -}; - -void GLTexturePrivate::genTexture() -{ - if (texture) - return; - - glGenTextures(1, &texture); - glBindTexture(GL_TEXTURE_2D, texture); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, minFilter); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, magFilter); - q->setHorizontalWrap(horizWrap); - q->setVerticalWrap(vertWrap); -} - -GLTexture::GLTexture() -: d(new GLTexturePrivate(this)) -{ -} - -GLTexture::GLTexture(const QString &file) -: d(new GLTexturePrivate(this)) -{ - QImage img(file); - if (!img.isNull()) - setImage(img); -} - -GLTexture::GLTexture(const QImage &img) -: d(new GLTexturePrivate(this)) -{ - setImage(img); -} - -GLTexture::~GLTexture() -{ - if (d->texture) - glDeleteTextures(1, &d->texture); - delete d; - d = 0; -} - -bool GLTexture::isNull() const -{ - return d->texture == 0; -} - -void GLTexture::clear() -{ - if (d->texture) { - glDeleteTextures(1, &d->texture); - d->texture = 0; - d->width = 0; - d->height = 0; - } -} - -static inline int npot(int size) -{ - size--; - size |= size >> 1; - size |= size >> 2; - size |= size >> 4; - size |= size >> 8; - size |= size >> 16; - size++; - return size; -} - -/*! - Set the texture to \a img. If the texture has already been created (either - by explicitly setting the size, or by previously setting an image), it will - be destroyed and a new texture created with \a img's contents and size. - */ -void GLTexture::setImage(const QImage &img, ImageMode mode) -{ - if (img.isNull()) - return; - - d->genTexture(); - - glBindTexture(GL_TEXTURE_2D, d->texture); - - if (mode == NonPowerOfTwo) { - - if (img.format() == QImage::Format_RGB16) { - QImage dataImage = img.mirrored(); - - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, dataImage.width(), - dataImage.height(), 0, - GL_RGB, - GL_UNSIGNED_SHORT_5_6_5, dataImage.bits()); - } else { - QImage dataImage = QGLWidget_convertToGLFormat(img); - - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, dataImage.width(), - dataImage.height(), 0, - (dataImage.format() == QImage::Format_ARGB32)?GL_RGBA:GL_RGB, - GL_UNSIGNED_BYTE, dataImage.bits()); - } - d->glWidth = 1.; - d->glHeight = 1.; - d->glSize = img.size(); - - } else { - // mode == PowerOfTwo - int max = (img.width() > img.height())?img.width():img.height(); - max = npot(max); - - if (img.format() == QImage::Format_RGB16) { - QImage dataImage = img.mirrored(); - - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, max, - max, 0, - GL_RGB, - GL_UNSIGNED_SHORT_5_6_5, 0); - - glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, dataImage.width(), - dataImage.height(), GL_RGB, GL_UNSIGNED_SHORT_5_6_5, - dataImage.bits()); - - } else { - QImage dataImage = QGLWidget_convertToGLFormat(img); - - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, max, - max, 0, - (dataImage.format() == QImage::Format_ARGB32)?GL_RGBA:GL_RGB, - GL_UNSIGNED_BYTE, 0); - - glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, dataImage.width(), - dataImage.height(), - (dataImage.format() == QImage::Format_ARGB32)?GL_RGBA:GL_RGB, - GL_UNSIGNED_BYTE, dataImage.bits()); - } - - d->glWidth = qreal(img.width()) / qreal(max); - d->glHeight = qreal(img.height()) / qreal(max); - d->glSize = QSize(max, max); - } - - d->width = img.width(); - d->height = img.height(); -} - -void GLTexture::copyImage(const QImage &img, const QPoint &point, - const QRect &srcRect) -{ - qFatal("Not implemented"); - Q_UNUSED(img); - Q_UNUSED(point); - Q_UNUSED(srcRect); -} - -QSize GLTexture::size() const -{ - return QSize(d->width, d->height); -} - -int GLTexture::width() const -{ - return d->width; -} - -int GLTexture::height() const -{ - return d->height; -} - -qreal GLTexture::glWidth() const -{ - return d->glWidth; -} - -qreal GLTexture::glHeight() const -{ - return d->glHeight; -} - -QSize GLTexture::glSize() const -{ - return d->glSize; -} - -/*! - Sets the \a size of the texture. This will destroy the current contents of - the texture. If an image has been assigned, it will need to be reassigned - using either setImage() or copyImage(). - - If size is invalid (width or height is less than or equal to 0) the texture - will be destroyed. This is equivalent to calling clear(). -*/ -void GLTexture::setSize(const QSize &size) -{ - if (size.width() <= 0 || size.height() <= 0) { - clear(); - return; - } - - d->genTexture(); - glBindTexture(GL_TEXTURE_2D, d->texture); - glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, size.width(), size.height(), 0, GL_RGBA, GL_UNSIGNED_BYTE, 0); - d->width = size.width(); - d->height = size.height(); -} - -GLTexture::WrapMode GLTexture::horizontalWrap() const -{ - return d->horizWrap; -} - -GLTexture::WrapMode GLTexture::verticalWrap() const -{ - return d->vertWrap; -} - -void GLTexture::setHorizontalWrap(WrapMode mode) -{ - d->horizWrap = mode; - if (d->texture) { - GLint last; - glGetIntegerv(GL_TEXTURE_BINDING_2D, &last); - if (GLuint(last) != d->texture) - glBindTexture(GL_TEXTURE_2D, d->texture); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, mode); - if (GLuint(last) != d->texture) - glBindTexture(GL_TEXTURE_2D, last); - } -} - -/*! - Set the veritcal wrap mode to \a mode. - */ -void GLTexture::setVerticalWrap(WrapMode mode) -{ - d->vertWrap = mode; - if (d->texture) { - GLint last; - glGetIntegerv(GL_TEXTURE_BINDING_2D, &last); - if (GLuint(last) != d->texture) - glBindTexture(GL_TEXTURE_2D, d->texture); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, mode); - if (GLuint(last) != d->texture) - glBindTexture(GL_TEXTURE_2D, last); - } -} - -GLTexture::FilterMode GLTexture::minFilter() const -{ - return d->minFilter; -} - -GLTexture::FilterMode GLTexture::magFilter() const -{ - return d->magFilter; -} - -void GLTexture::setMinFilter(FilterMode f) -{ - if (d->minFilter == f) - return; - d->minFilter = f; - if (d->texture) { - glBindTexture(GL_TEXTURE_2D, d->texture); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, d->minFilter); - } -} - -void GLTexture::setMagFilter(FilterMode f) -{ - if (d->magFilter == f) - return; - d->magFilter = f; - if (d->texture) { - glBindTexture(GL_TEXTURE_2D, d->texture); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, d->magFilter); - } -} - -GLuint GLTexture::texture() const -{ - return d->texture; -} - -QT_END_NAMESPACE |